Some standard content:
ICS23,J40
Chinese Machinery Industry Standard
JB/T8933—1999
Oil-free recigrocating piston air compressorOil-free recigrocating piston air congressnrs1999-07-12 issued
National Machinery Industry Bureau issued
2000-01-01 implemented
This standard is a reorganization of two standards ZBJ72D14.1-88 "Basic Specifications of Fully Lubricated Reciprocating Piston Air Chamber" and 7RJ7201-.2-88 Technical Conditions of Oil-free Lubricated Air Compressors to form a complete industry standard. The differences between this standard and 7.J72014.1—882 and 372014.2—883 are as follows: some parameters missing in the original standard are added, some necessary omissions in the standard are corrected, and the standard is more suitable and convenient to use. This standard replaces 213J72014.—883 and 2.BJ72014.288. This standard is issued by the National Machinery Standardization Technical Committee. The responsible person for drafting this standard is Nanjing Yida Machinery Co., Ltd. The main drafters of this standard are Zou Ru, Yu Qiulin, Luo Shengju 1 Fan Yuan
Machinery Industry Standard of the People's Republic of China
Oil-free reciprocating piston air compressor Dil-tree reripmrating piston air cnmpressors IB/T 8933-1999
2B J72 014.1—88
ZB JT2 14.2 88
This standard specifies the operating conditions, model and basic performance requirements, test methods, inspection rules, marking, packaging and storage of oil-free air compressors (hereinafter referred to as air compressors). This standard is applicable to air compressors driven by electric motors with a flow rate not exceeding 3m/min, a rated exhaust pressure not exceeding 1.4Mla, and a rated power not exceeding 22kw. This standard is also applicable to air compressors without motors when leaving the factory. This standard is not applicable to direct-fuel air compressors: air compressors driven by internal combustion engines and special metals can be used in accordance with this standard. 2. Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard: The provisions shown in this standard are valid. All standards will be revised and the parties who resume use of our standards shall discuss the possibility of using the latest versions of the following standards: 03:1 3853—1998
GD.T 4980--1985
GB/T 5330—1985
GR/T 722—1986
03/T 7777-1987
03/T 9438—1989
GB/T 9±40: -1988
GB/F 13276 1991
GB/T 133061991
GBT J511S. 1994
JB/T 2589 999
JB6431—1092
JB/T 65391992
JB:T7663.1—1995
JB.T 854[—1907
JB/T104—1999
Acceptance test of positive displacement compressor
Determination of noise level of positive displacement compressor. Method for determination of noise level of positive displacement compressor. Simple method for determination of noise level of positive displacement compressor. Vibration test and evaluation of aluminum alloy parts. Case study of positive displacement compressor.
Iron parts
Noise level of positive displacement compressor. Equipment nameplate
Aluminum alloy enterprise
Model compilation method for positive displacement compressor
Technical specifications for gray cast titanium parts for positive displacement compressors; Steel parts for micro air compressors; Packing technical parts for positive displacement compressors
Mechanical classification of compressors
Technical parts for positive displacement compressors; Approved by the State Bureau of Machinery Industry on 1-07-12
Implemented on 2000-01-01||t t||Specified working conditions of air compressor
a) Suction pressure is o.:MPa (absolute)
h) Suction temperature is 20;
) Suction relative humidity is:
d; Exhaust force is rated exhaust, MPa:
e) Shaft speed is rated speed, Timin:FB/T8933-1999
f) Water inlet concentration of air compressor cooling water is 15%4 Model and basic information of air compressor 4.1 The type of medium compressor shall be in accordance with the provisions of JB/12589. 4.2 Basic parameters of the compressor 4.2.1 The compression stages, drive motor power, rated exhaust pressure and nominal volume flow of the air compressor shall comply with the provisions of Table 1. The compression stages, drive motor power, rated exhaust pressure and nominal volume flow of the air compressor shall comply with the provisions of Table 1. )
0.51(0.48
0.75 (0.68)
t.cs ! t.co?
125 (1.4)
D.IA O.J5:
0.34(0.30)
0.500.42)
Not graded
Drive electric
Rated power
:) Refers to water-cooled air-conditioning machine
JBT8933—1999
Table丨(end)
2.1. 2.3'
2.6. 7 kl.
2.0. 2.241
23, 2 st
[.25 (1.4)
0.5 ( 2.60 )
1.30 : 1.2c;
1.8. 2.91: ( t.6. 18:
2, 2 :.8. 2.0
4.2.1.1 The air compressor capacity under the specified working conditions is 10% of the rated value, and the effective number greater than the specified value in the table should be used as the nominal value of the model. 4.2.1.2 The air volume discharged by the air compressor in the unit: This value is measured at the non-gas end and converted to the first-stage suction state. At this time, the condensed water collected at the air cooler and the intermediate cooler should be converted into the air flow. 4.1.2 The total volume of the air storage of the compressor should be less than the provisions of Table 2: Table 2 The total air volume must be equal to the motor speed to ensure the total air volume. 5 Requirements 5.1 The air compressor shall comply with the requirements of this standard or the regulations, and shall be manufactured in accordance with the drawings and technical documents of the specified model series. 29. 5.2 The average power consumption of the air compressor at the rated exhaust delivery force (including the power consumption of cooling air load) shall not exceed the rated power of the actuator after taking into account the transmission efficiency. 5.3 The actual case flow of the air compressor under specified conditions shall not be less than 95% of the nominal capacity flow. 5.4 The specific power of the air compressor under specified conditions should not be greater than the rated power of the source and pressure level in Table 3. The rated power of the driving motor should be half of that in Table 3. Air compressor B8933-1999 Table 3 Specific power of air compressor under specified conditions 5.C (8.5 ) 7.1 (1.61 6.6 :7.21 6.4 20.33 kW/ (mmo) 9.3, 7.5 :5.5 The power level and cooling water consumption of the air compressor should not be greater than that in Table 4. 135 (14 10.5 11:.2)
10.3 1 10.g)
9.2, 8.0*(9.6.8.5#)
Some moving milk
. [g.s
JB891999
Pei 4 Noise level, cleanliness, water consumption, sound power level
Water cooler
Single stage T
Severe level
5.6 The mechanical intensity of the air compressor shall not exceed the C-level alarm intensity specified in TR/T8541. When the first-stage suction temperature is: MP (absolute), the exhaust temperature shall not exceed 2.
5. The automatic control system of the air compressor shall be able to automatically adjust the volume flow according to the clean air exceeding the medium gas capacity, and shall verify that the compressed air in the non-discharged gas storage capacity can be safely and reliably started. 5.9 The air compressor should be equipped with an air intake silencer that complies with B1327. 5. All levels of the air compressor should be fully tested, and the safety valve should be sensitive to heat. 5.11 The reverse pipes, joints and joints on the compressor should be sealed. There should be no leakage. 5.12 The air cylinder, air cover and intercooler should be tested at a working pressure of 1.5 mbar. The water pressure should be tested at a pressure of not less than D.5 MPa. The test time should be less than 5 minutes. For air compressors with rated power of 18.5 kW and 22 kW, the test time should be less than 30 minutes. There should be no leakage: 5.13 After the engine and exhaust components are assembled, the oil-free test should be continued. Test: No linear leakage is allowed (this test is not required for the suction valve of the tongue case
5.14 The performance of the air compressor shall comply with the specifications of JB.T6431 or GBT9440, the aluminum alloy parts shall comply with the provisions of GB/T9438 and GBT1511S.K, and the ductile iron parts shall comply with the provisions of JBT9[04. 5.15 The storage and its equipment shall comply with the provisions of JBT6539 and JB/T8 933—1909
5.16 The weight of the piston and the reverse rod of the air compressor shall be in accordance with the provisions of the sample, and the error shall not exceed 5%. The static balance test shall be carried out according to the requirements of the drawing and meet the design requirements.
5.1 Under the conditions of use specified in the instruction manual of the air compressor, the ring, guide ring, valve plate, and spring should be replaced at least 20001
5. The outer surface of the air compressor should be cleaned, the outer surface of the cylinder and cylinder head should not be uneven, the surface of the roller filter should be shiny, and the speed should be consistent: the hardware should be decorated. 5.19 The complete set provided to the user with the air compressor includes: a. the original machine and its starting equipment and gas volume automatic adjustment device; b. transmission device; c. air filter, pressure gauge, safety lubricant; d. a complete set of wearing parts; e. necessary special tools.
5.20 Under the condition that the user complies with the provisions of the product manual, the manufacturer shall provide the air compressor with a warranty of one year from the date of delivery. During the service life, if the product cannot work normally due to poor quality or unexpected damage occurs, the manufacturer shall not repair or replace it.
6 Test method
6.1 Performance test method shall be in accordance with the provisions of GB3853. 6.2 The determination of the sound power level shall be in accordance with the provisions of GB/F4980. When the conditions of GBT49B0 are met, the provisions of G87022 may be followed:
6.3 The determination of the vibration intensity of the machine shall be in accordance with the provisions of GB/T7777. 6.4 Determination of decontamination degree: disassemble the air compressor, clean the cylinder, starter, air chamber, piston, connecting rod, front bearing, air box and other parts (excluding the exposed surface) with a cleaning agent, filter the dirt, and then purify it at 80℃ for 1 hour. Weigh it with a common balance with a density of not less than 7. The weight of the dirt is the decontamination degree of the air compressor. The net weight should comply with GB/53, the density is 3, and the basic size of the mesh is 0.081m. 6.5 At each gas line, the air compressor appearance quality should be checked by daily testing.
Inspection rules
Products are divided into factory inspection, oil parts inspection and type inspection. 7.1 Factory Inspection
The air compressor must be inspected and qualified by the factory quality inspection department, and can be shipped after the certificate is attached. 7.1.1 Factory Inspection
After the air compressor runs without load for 0.5h and runs continuously at rated exhaust power for 0.5h, the following items shall be inspected: a) Machine operation (speed, performance, gas main automatic adjustment system and full alarm); b) Actual volume flow:
; c) The actual gas pressure relative to the output station:
; d) The leakage of the air compressor.
7.1.1 Factory Inspection
|The actual measured volume flow, specific power and performance test results shall not exceed the provisions of JBT9933
. The difference between the test results and the performance test results of the prototype shall not exceed 5 years. Table 5: Speed and volume ratio of the main engine when leaving the factory for inspection and monitoring 7.2: The speed of the main engine when full load is 7.2: The volume ratio of the main engine is 7.2: The speed of the main engine is 7.2: The volume ratio ...
Table 6 Sample inspection capacity
Autumn vegetables
Block size
201-:00
>30℃
Qualified judgment question
Unqualified profit display number R
7.2.2 The full load continuous flow test time of the sample inspection should not be less than 48h. During the test, the working condition of the air compressor should be inspected, and the air volume, auxiliary power, transfer, various levels of transformers, non-gas temperature and stopping power and cooling consumption should be measured. At the end of the operation, the steam temperature should be checked to see if it meets the requirements of this standard.
7.2.3 If the random inspection fails, the manufacturer shall check the batch of products one by one, and the non-conforming products shall be reviewed and dealt with according to the prescribed procedures. 7.3 Type Inspection
7.3.1 Trial-produced air compressors (including new products and total products produced in the factory) shall be subject to type inspection. During the inspection, the continuous operation time at full load shall be at least 500 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.2 Normally produced air compressors, if there are major changes in structure, material, and process that may affect product performance or the machine will be out of production for a long time, shall be subject to type inspection. At the end of the inspection, the continuous operation time shall be at least 200 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours.
7.3.3 Air compressors that have completed production shall be subject to type inspection periodically or after a certain number of accumulations. During the inspection, the continuous operation time at full load shall be at least 21 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.4 When the air compressor is running and running for 2 hours, a performance test shall be carried out to measure the air compressor capacity, shaft power, suction and exhaust pressure and temperature. Noise level, vibration and cooling water elimination volume. The measured results shall comply with the requirements of the standard.
7.3.5 Within the last 9 hours of the type inspection, the air volume dynamic adjustment system shall be tested for feasibility and then carried out 8 to 15 times. 1. The operation shall be stopped normally:
7.3.6 After the configuration inspection, it shall be disassembled for inspection and the elimination value shall be measured. The results shall comply with the requirements of Table 4. For the type inspections specified in 7.3.1 and 7.32, the loss of each component shall be recorded and the case shall be completed. 7
8 Marking, packaging and storage
8. 1 The air compressor ring seat has a clear fixed position plate, and the nameplate size is in accordance with GBT1336. The nameplate of the air compressor should at least indicate the following: 1) Model name: 2) Flow rate, mm/min; 3) Rated exhaust pressure, Ma: 4) Speed, r/min; 5) Shape (length ××, m, 6) Dead distance, kg; 7) Step door No.:
) Year and month of manufacture;
) Name of manufacturer and its address (for export products, such as "People's Republic of China") 8.2 The packaging of type
air compressors shall comply with the provisions of ISO 7663.1. 8.3 After the air compressors are packaged, they shall be stored in a ventilated and dry room or a sheltered place that will not be exposed to moisture. They shall not be packed with medium. Under normal transportation conditions, the products shall be guaranteed to be free of rust within 6 months. Special requirements shall be provided and the supply and demand parties shall cooperate to set up the supervision.9 The air compressor should be equipped with an air intake silencer that complies with B1327. 5. All levels of the air compressor should be fully tested, and the safety valve should be sensitive to heat. 5.11 The reverse pipes, joints and joints on the compressor should be sealed. There should be no leakage. 5.12 The air cylinder, air cover and intercooler should be tested at a working pressure of 1.5 mbar. The water pressure should be tested at a pressure of not less than D.5 MPa. The test time should be less than 5 minutes. For air compressors with rated power of 18.5 kW and 22 kW, the test time should be less than 30 minutes. There should be no leakage: 5.13 After the engine and exhaust components are assembled, the oil-free test should be continued. Test: No linear leakage is allowed (this test is not required for the suction valve of the tongue case
5.14 The performance of the air compressor shall comply with the specifications of JB.T6431 or GBT9440, the aluminum alloy parts shall comply with the provisions of GB/T9438 and GBT1511S.K, and the ductile iron parts shall comply with the provisions of JBT9[04. 5.15 The storage and its equipment shall comply with the provisions of JBT6539 and JB/T8 933—1909
5.16 The weight of the piston and the reverse rod of the air compressor shall be in accordance with the provisions of the sample, and the error shall not exceed 5%. The static balance test shall be carried out according to the requirements of the drawing and meet the design requirements.
5.1 Under the conditions of use specified in the instruction manual of the air compressor, the ring, guide ring, valve plate, and spring should be replaced at least 20001
5. The outer surface of the air compressor should be cleaned, the outer surface of the cylinder and cylinder head should not be uneven, the surface of the roller filter should be shiny, and the speed should be consistent: the hardware should be decorated. 5.19 The complete set provided to the user with the air compressor includes: a. the original machine and its starting equipment and gas volume automatic adjustment device; b. transmission device; c. air filter, pressure gauge, safety lubricant; d. a complete set of wearing parts; e. necessary special tools.
5.20 Under the condition that the user complies with the provisions of the product manual, the manufacturer shall provide the air compressor with a warranty of one year from the date of delivery. During the service life, if the product cannot work normally due to poor quality or unexpected damage occurs, the manufacturer shall not repair or replace it.
6 Test method
6.1 Performance test method shall be in accordance with the provisions of GB3853. 6.2 The determination of the sound power level shall be in accordance with the provisions of GB/F4980. When the conditions of GBT49B0 are met, the provisions of G87022 may be followed:
6.3 The determination of the vibration intensity of the machine shall be in accordance with the provisions of GB/T7777. 6.4 Determination of decontamination degree: disassemble the air compressor, clean the cylinder, starter, air chamber, piston, connecting rod, front bearing, air box and other parts (excluding the exposed surface) with a cleaning agent, filter the dirt, and then purify it at 80℃ for 1 hour. Weigh it with a common balance with a density of not less than 7. The weight of the dirt is the decontamination degree of the air compressor. The net weight should comply with GB/53, the density is 3, and the basic size of the mesh is 0.081m. 6.5 At each gas line, the air compressor appearance quality should be checked by daily testing.
Inspection rules
Products are divided into factory inspection, oil parts inspection and type inspection. 7.1 Factory Inspection
The air compressor must be inspected and qualified by the factory quality inspection department, and can be shipped after the certificate is attached. 7.1.1 Factory Inspection
After the air compressor runs without load for 0.5h and runs continuously at rated exhaust power for 0.5h, the following items shall be inspected: a) Machine operation (speed, performance, gas main automatic adjustment system and full alarm); b) Actual volume flow:
; c) The actual gas pressure relative to the output station:
; d) The leakage degree of the air compressor.
7.1.1 Factory Inspection
|The actual measured volume flow, specific power and performance test results shall not exceed the provisions of JBT9933
. The difference between the test results and the performance test results of the prototype shall not exceed 5 years. Table 5: Speed and volume ratio of the main engine when leaving the factory for inspection and monitoring 7.2: The speed of the main engine when full load is 7.2: The volume ratio of the main engine is 7.2: The speed of the main engine is 7.2: The volume ratio ...
Table 6 Sample inspection capacity
Autumn vegetables
Block size
201-:00
>30℃
Qualified judgment question
Unqualified profit display number R
7.2.2 The full load continuous flow test time of the sample inspection should not be less than 48h. During the test, the working condition of the air compressor should be inspected, and the air volume, auxiliary power, transfer, various levels of transformers, non-gas temperature and stopping power and cooling consumption should be measured. At the end of the operation, the steam temperature should be checked to see if it meets the requirements of this standard.
7.2.3 If the random inspection fails, the manufacturer shall check the batch of products one by one, and the non-conforming products shall be reviewed and dealt with according to the prescribed procedures. 7.3 Type Inspection
7.3.1 Trial-produced air compressors (including new products and total products produced in the factory) shall be subject to type inspection. During the inspection, the continuous operation time at full load shall be at least 500 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.2 Air compressors in normal production, if there are major changes in structure, materials, and process that may affect product performance or the air compressors will be out of production for a long time, shall be subject to type inspection. At the end of the inspection, the continuous operation time shall be at least 200 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours.
7.3.3 Air compressors that have completed production shall be subject to type inspection periodically or after a certain number of accumulations. During the inspection, the continuous operation time at full load shall be at least 21 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.4 When the air compressor is running and running for 2 hours, a performance test shall be carried out to measure the air compressor capacity, shaft power, suction and exhaust pressure and temperature. Noise level, vibration and cooling water elimination volume. The measured results shall comply with the requirements of the standard.
7.3.5 Within the last 9 hours of the type inspection, the air volume dynamic adjustment system shall be tested for feasibility and then carried out 8 to 15 times. 1. The operation shall be stopped normally:
7.3.6 After the configuration inspection, it shall be disassembled for inspection and the elimination value shall be measured. The results shall comply with the requirements of Table 4. For the type inspections specified in 7.3.1 and 7.32, the loss of each component shall be recorded and the case shall be completed. 7
8 Marking, packaging and storage
8. 1 The air compressor ring seat has a clear fixed position plate, and the nameplate size is in accordance with GBT1336. The nameplate of the air compressor should at least indicate the following: 1) Model name: 2) Flow rate, mm/min; 3) Rated exhaust pressure, Ma: 4) Speed, r/min; 5) Shape (length ××, m, 6) Dead distance, kg; 7) Step door No.:
) Year and month of manufacture;
) Name of manufacturer and its address (for export products, such as "People's Republic of China") 8.2 The packaging of type
air compressors shall comply with the provisions of ISO 7663.1. 8.3 After the air compressors are packaged, they shall be stored in a ventilated and dry room or a sheltered place that will not be exposed to moisture. They shall not be packed with medium. Under normal transportation conditions, the products shall be guaranteed to be free of rust within 6 months. Special requirements shall be provided and the supply and demand parties shall cooperate to set up the supervision.9 The air compressor should be equipped with an air intake silencer that complies with B1327. 5. All levels of the air compressor should be fully tested, and the safety valve should be sensitive to heat. 5.11 The reverse pipes, joints and joints on the compressor should be sealed. There should be no leakage. 5.12 The air cylinder, air cover and intercooler should be tested at a working pressure of 1.5 mbar. The water pressure should be tested at a pressure of not less than D.5 MPa. The test time should be less than 5 minutes. For air compressors with rated power of 18.5 kW and 22 kW, the test time should be less than 30 minutes. There should be no leakage: 5.13 After the engine and exhaust components are assembled, the oil-free test should be continued. Test: No linear leakage is allowed (this test is not required for the suction valve of the tongue case
5.14 The performance of the air compressor shall comply with the specifications of JB.T6431 or GBT9440, the aluminum alloy parts shall comply with the provisions of GB/T9438 and GBT1511S.K, and the ductile iron parts shall comply with the provisions of JBT9[04. 5.15 The storage and its equipment shall comply with the provisions of JBT6539 and JB/T8 933—1909
5.16 The weight of the piston and the reverse rod of the air compressor shall be in accordance with the provisions of the sample, and the error shall not exceed 5%. The static balance test shall be carried out according to the requirements of the drawing and meet the design requirements.
5.1 Under the conditions of use specified in the instruction manual of the air compressor, the ring, guide ring, valve plate, and spring should be replaced at least 20001
5. The outer surface of the air compressor should be cleaned, the outer surface of the cylinder and cylinder head should not be uneven, the surface of the roller filter should be shiny, and the speed should be consistent: the hardware should be decorated. 5.19 The complete set provided to the user with the air compressor includes: a. the original machine and its starting equipment and gas volume automatic adjustment device; b. transmission device; c. air filter, pressure gauge, safety lubricant; d. a complete set of wearing parts; e. necessary special tools.
5.20 Under the condition that the user complies with the provisions of the product manual, the manufacturer shall provide the air compressor with a warranty of one year from the date of delivery. During the service life, if the product cannot work normally due to poor quality or unexpected damage occurs, the manufacturer shall not repair or replace it.
6 Test method
6.1 Performance test method shall be in accordance with the provisions of GB3853. 6.2 The determination of the sound power level shall be in accordance with the provisions of GB/F4980. When the conditions of GBT49B0 are met, the provisions of G87022 may be followed:
6.3 The determination of the vibration intensity of the machine shall be in accordance with the provisions of GB/T7777. 6.4 Determination of decontamination degree: disassemble the air compressor, clean the cylinder, starter, air chamber, piston, connecting rod, front bearing, air box and other parts (excluding the exposed surface) with a cleaning agent, filter the dirt, and then purify it at 80℃ for 1 hour. Weigh it with a common balance with a density of not less than 7. The weight of the dirt is the decontamination degree of the air compressor. The net weight should comply with GB/53, the density is 3, and the basic size of the mesh is 0.081m. 6.5 At each gas line, the air compressor appearance quality should be checked by daily testing.
Inspection rules
Products are divided into factory inspection, oil parts inspection and type inspection. 7.1 Factory Inspection
The air compressor must be inspected and qualified by the factory quality inspection department, and can be shipped after the certificate is attached. 7.1.1 Factory Inspection
After the air compressor runs without load for 0.5h and runs continuously at rated exhaust power for 0.5h, the following items shall be inspected: a) Machine operation (speed, performance, gas main automatic adjustment system and full alarm); b) Actual volume flow:
; c) The actual gas pressure relative to the output station:
; d) The leakage of the air compressor.
7.1.1 Factory Inspection
|The actual measured volume flow, specific power and performance test results shall not exceed the provisions of JBT9933
. The difference between the test results and the performance test results of the prototype shall not exceed 5 years. Table 5: Speed and volume ratio of the main engine when leaving the factory for inspection and monitoring 7.2: The speed of the main engine when full load is 7.2: The volume ratio of the main engine is 7.2: The speed of the main engine is 7.2: The volume ratio ...
Table 6 Sample inspection capacity
Autumn vegetables
Block size
201-:00
>30℃
Qualified judgment question
Unqualified profit display number R
7.2.2 The full load continuous flow test time of the sample inspection should not be less than 48h. During the test, the working condition of the air compressor should be inspected, and the air volume, auxiliary power, transfer, various levels of transformers, non-gas temperature and stopping power and cooling consumption should be measured. At the end of the operation, the steam temperature should be checked to see if it meets the requirements of this standard.
7.2.3 If the random inspection fails, the manufacturer shall check the batch of products one by one, and the non-conforming products shall be reviewed and dealt with according to the prescribed procedures. 7.3 Type Inspection
7.3.1 Trial-produced air compressors (including new products and total products produced in the factory) shall be subject to type inspection. During the inspection, the continuous operation time at full load shall be at least 500 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.2 Normally produced air compressors, if there are major changes in structure, material, and process that may affect product performance or the machine will be out of production for a long time, shall be subject to type inspection. At the end of the inspection, the continuous operation time shall be at least 200 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours.
7.3.3 Air compressors that have completed production shall be subject to type inspection periodically or after a certain number of accumulations. During the inspection, the continuous operation time at full load shall be at least 21 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.4 When the air compressor is running and running for 2 hours, a performance test shall be carried out to measure the air compressor capacity, shaft power, suction and exhaust pressure and temperature. Noise level, vibration and cooling water elimination volume. The measured results shall comply with the requirements of the standard.
7.3.5 Within the last 9 hours of the type inspection, the air volume dynamic adjustment system shall be tested for feasibility and then carried out 8 to 15 times. 1. The operation shall be stopped normally:
7.3.6 After the configuration inspection, it shall be disassembled for inspection and the elimination value shall be measured. The results shall comply with the requirements of Table 4. For the type inspections specified in 7.3.1 and 7.32, the loss of each component shall be recorded and the case shall be completed. 7
8 Marking, packaging and storage
8. 1 The air compressor ring seat has a clear fixed position plate, and the nameplate size is in accordance with GBT1336. The nameplate of the air compressor should at least indicate the following: 1) Model name: 2) Flow rate, mm/min; 3) Rated exhaust pressure, Ma: 4) Speed, r/min; 5) Shape (length ××, m, 6) Dead distance, kg; 7) Step door No.:
) Year and month of manufacture;
) Name of manufacturer and its address (for export products, such as "People's Republic of China") 8.2 The packaging of type
air compressors shall comply with the provisions of ISO 7663.1. 8.3 After the air compressors are packaged, they shall be stored in a ventilated and dry room or a sheltered place that will not be exposed to moisture. They shall not be packed with medium. Under normal transportation conditions, the products shall be guaranteed to be free of rust within 6 months. Special requirements shall be provided and the supply and demand parties shall cooperate to set up the supervision.16 The weight of the piston and the reverse rod of the air compressor shall be in accordance with the provisions of the sample, and the error shall not exceed 5%. The static balance test shall be carried out according to the requirements of the drawing and meet the design requirements.
5.1 Under the conditions of use specified in the instruction manual of the air compressor, the ring, guide ring, valve plate, and spring should be replaced at least 20001
5. The outer surface of the air compressor should be cleaned, the outer surface of the cylinder and cylinder head should not be uneven, the surface of the roller filter should be shiny, and the speed should be consistent: the firmware should be decorated. 5.19 The complete set provided to the user with the air compressor includes: a. the original machine and its starting equipment and gas volume automatic adjustment device; b. transmission device; c. air filter, pressure gauge, safety lubricant; d. a complete set of wearing parts; e. necessary special tools.
5.20 Under the condition that the user complies with the provisions of the product instruction manual, the manufacturer shall provide the air compressor with a warranty of one year from the date of delivery. During the service life, if the product cannot work normally due to poor quality or unexpected damage occurs, the manufacturer shall not repair or replace it.
6 Test method
6.1 Performance test method shall be in accordance with the provisions of GB3853. 6.2 The determination of the sound power level shall be in accordance with the provisions of GB/F4980. When the conditions of GBT49B0 are met, the provisions of G87022 may be followed:
6.3 The determination of the vibration intensity of the machine shall be in accordance with the provisions of GB/T7777. 6.4 Determination of decontamination degree: disassemble the air compressor, clean the cylinder, starter, air chamber, piston, connecting rod, front bearing, air box and other parts (excluding the exposed surface) with a cleaning agent, filter the dirt, and then purify it at 80℃ for 1 hour, and weigh it with a common balance with a density of not less than 7 grades. The weight of the dirt is the decontamination degree of the air compressor. The net weight should comply with the requirements of GB/53, the density is 3 grades, and the basic size of the mesh is 0.081m. 6.5 At each gas line, the air compressor appearance quality should be checked by daily testing.
Inspection rules
Products are divided into factory inspection, oil parts inspection and type inspection. 7.1 Factory Inspection
The air compressor must be inspected and qualified by the quality inspection department of the factory, and can be shipped after the certificate is attached. 7.1.1 Factory Inspection
After the air compressor runs without load for 0.5h and runs continuously at rated exhaust power for 0.5h, the following items shall be inspected: a) Machine operation (speed, performance, gas main automatic adjustment system and full alarm); b) Actual volume flow:
; c) The actual gas pressure relative to the output station:
; d) The leakage of the air compressor.
7.1.1 Factory Inspection
JBT9933
The measured volume flow, specific power and performance test results shall not exceed the requirements of the sample performance test. The difference shall not exceed 5 years. Table 5: Speed and volume ratio of the main engine when leaving the factory for inspection and monitoring 7.2: The speed of the main engine when full load is 7.2: The volume ratio of the main engine is 7.2: The speed of the main engine is 7.2: The volume ratio ...
Table 6 Sample inspection capacity
Autumn vegetables
Block size
201-:00
>30℃
Qualified judgment question
Unqualified profit display number R
7.2.2 The full load continuous flow test time of the sample inspection should not be less than 48h. During the test, the working condition of the air compressor should be inspected, and the air volume, auxiliary power, transfer, various levels of transformers, non-gas temperature and stopping power and cooling consumption should be measured. At the end of the operation, the steam temperature should be checked to see if it meets the requirements of this standard.
7.2.3 If the random inspection fails, the manufacturer shall check the batch of products one by one, and the non-conforming products shall be reviewed and dealt with according to the prescribed procedures. 7.3 Type Inspection
7.3.1 Trial-produced air compressors (including new products and total products produced in the factory) shall be subject to type inspection. During the inspection, the continuous operation time at full load shall be at least 500 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.2 Normally produced air compressors, if there are major changes in structure, materials, and process that may affect product performance or the normal production of the machine for a long time, shall be subject to type inspection. At the end of the inspection, the continuous operation time shall be at least 200 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. bZxz.net
7.3.3 Air compressors that have completed normal production shall be subject to type inspection periodically or after a certain number of accumulations. During the inspection, the continuous operation time at full load shall be at least 21 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.4 When the air compressor is running and running for 2 hours, a performance test shall be carried out to measure the air compressor capacity flow, shaft power, suction and exhaust pressure and temperature. Noise level, vibration and cooling water elimination volume. The measured results shall comply with the requirements of the standard.
7.3.5 Within the last 9 hours of the type inspection, the air volume dynamic adjustment system shall be tested for feasibility and then carried out 8 to 15 times. 1. The operation shall be stopped normally:
7.3.6 After the configuration inspection, it shall be disassembled for inspection and the elimination value shall be measured. The results shall comply with the requirements of Table 4. For the type inspections specified in 7.3.1 and 7.32, the loss of each component shall be recorded and the result shall be confirmed. 7
8 Marking, packaging and storage
8. 1 The air compressor ring seat has a clear fixed position plate, and the nameplate size is in accordance with GBT1336. The nameplate of the air compressor should at least indicate the following: 1) Model name: 2) Flow rate, mm/min; 3) Rated exhaust pressure, Ma: 4) Speed, r/min; 5) Shape (length ××, m, 6) Dead distance, kg; 7) Step door No.:
) Year and month of manufacture;
) Name of manufacturer and its address (for export products, such as "People's Republic of China") 8.2 The packaging of type
air compressors shall comply with the provisions of ISO 7663.1. 8.3 After the air compressors are packaged, they shall be stored in a ventilated and dry room or a sheltered place that will not be exposed to moisture. They shall not be packed with medium. Under normal transportation conditions, the products shall be guaranteed to be free of rust within 6 months. Special requirements shall be provided and the supply and demand parties shall cooperate to set up the supervision.16 The weight of the piston and the reverse rod of the air compressor shall be in accordance with the provisions of the sample, and the error shall not exceed 5%. The static balance test shall be carried out according to the requirements of the drawing and meet the design requirements.
5.1 Under the conditions of use specified in the instruction manual of the air compressor, the ring, guide ring, valve plate, and spring should be replaced at least 20001
5. The outer surface of the air compressor should be cleaned, the outer surface of the cylinder and cylinder head should not be uneven, the surface of the roller filter should be shiny, and the speed should be consistent: the firmware should be decorated. 5.19 The complete set provided to the user with the air compressor includes: a. the original machine and its starting equipment and gas volume automatic adjustment device; b. transmission device; c. air filter, pressure gauge, safety lubricant; d. a complete set of wearing parts; e. necessary special tools.
5.20 Under the condition that the user complies with the provisions of the product instruction manual, the manufacturer shall provide the air compressor with a warranty of one year from the date of delivery. During the service life, if the product cannot work normally due to poor quality or unexpected damage occurs, the manufacturer shall not repair or replace it.
6 Test method
6.1 Performance test method shall be in accordance with the provisions of GB3853. 6.2 The determination of the sound power level shall be in accordance with the provisions of GB/F4980. When the conditions of GBT49B0 are met, the provisions of G87022 may be followed:
6.3 The determination of the vibration intensity of the machine shall be in accordance with the provisions of GB/T7777. 6.4 Determination of decontamination degree: disassemble the air compressor, clean the cylinder, starter, air chamber, piston, connecting rod, front bearing, air box and other parts (excluding the exposed surface) with a cleaning agent, filter the dirt, and then purify it at 80℃ for 1 hour, and weigh it with a common balance with a density of not less than 7 grades. The weight of the dirt is the decontamination degree of the air compressor. The net weight should comply with the requirements of GB/53, the density is 3 grades, and the basic size of the mesh is 0.081m. 6.5 At each gas line, the air compressor appearance quality should be checked by daily testing.
Inspection rules
Products are divided into factory inspection, oil parts inspection and type inspection. 7.1 Factory Inspection
The air compressor must be inspected and qualified by the quality inspection department of the factory, and can be shipped after the certificate is attached. 7.1.1 Factory Inspection
After the air compressor runs without load for 0.5h and runs continuously at rated exhaust power for 0.5h, the following items shall be inspected: a) Machine operation (speed, performance, gas main automatic adjustment system and full alarm); b) Actual volume flow:
; c) The actual gas pressure relative to the output station:
; d) The leakage of the air compressor.
7.1.1 Factory Inspection
JBT9933
The measured volume flow, specific power and performance test results shall not exceed the requirements of the sample performance test. The difference shall not exceed 5 years. Table 5: Speed and volume ratio of the main engine when leaving the factory for inspection and monitoring 7.2: The speed of the main engine when full load is 7.2: The volume ratio of the main engine is 7.2: The speed of the main engine is 7.2: The volume ratio ...
Table 6 Sample inspection capacity
Autumn vegetables
Block size
201-:00
>30℃
Qualified judgment question
Unqualified profit display number R
7.2.2 The full load continuous flow test time of the sample inspection should not be less than 48h. During the test, the working condition of the air compressor should be inspected, and the air volume, auxiliary power, transfer, various levels of transformers, non-gas temperature and stopping power and cooling consumption should be measured. At the end of the operation, the steam temperature should be checked to see if it meets the requirements of this standard.
7.2.3 If the random inspection fails, the manufacturer shall check the batch of products one by one, and the non-conforming products shall be reviewed and dealt with according to the prescribed procedures. 7.3 Type Inspection
7.3.1 Trial-produced air compressors (including new products and total products produced in the factory) shall be subject to type inspection. During the inspection, the continuous operation time at full load shall be at least 500 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.2 Normally produced air compressors, if there are major changes in structure, materials, and process that may affect product performance or the normal production of the machine for a long time, shall be subject to type inspection. At the end of the inspection, the continuous operation time shall be at least 200 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours.
7.3.3 Air compressors that have completed normal production shall be subject to type inspection periodically or after a certain number of accumulations. During the inspection, the continuous operation time at full load shall be at least 21 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.4 When the air compressor is running and running for 2 hours, a performance test shall be carried out to measure the air compressor capacity flow, shaft power, suction and exhaust pressure and temperature. Noise level, vibration and cooling water elimination volume. The measured results shall comply with the requirements of the standard.
7.3.5 Within the last 9 hours of the type inspection, the air volume dynamic adjustment system shall be tested for feasibility and then carried out 8 to 15 times. 1. The operation shall be stopped normally:
7.3.6 After the configuration inspection, it shall be disassembled for inspection and the elimination value shall be measured. The results shall comply with the requirements of Table 4. For the type inspections specified in 7.3.1 and 7.32, the loss of each component shall be recorded and the result shall be confirmed. 7
8 Marking, packaging and storage
8. 1 The air compressor ring seat has a clear fixed position plate, and the nameplate size is in accordance with GBT1336. The nameplate of the air compressor should at least indicate the following: 1) Model name: 2) Flow rate, mm/min; 3) Rated exhaust pressure, Ma: 4) Speed, r/min; 5) Shape (length ××, m, 6) Dead distance, kg; 7) Step door No.:
) Year and month of manufacture;
) Name of manufacturer and its address (for export products, such as "People's Republic of China") 8.2 The packaging of type
air compressors shall comply with the provisions of ISO 7663.1. 8.3 After the air compressors are packaged, they shall be stored in a ventilated and dry room or a sheltered place that will not be exposed to moisture. They shall not be packed with medium. Under normal transportation conditions, the products shall be guaranteed to be free of rust within 6 months. Special requirements shall be provided and the supply and demand parties shall cooperate to set up the supervision.After 5 hours, check the following items: a) Machine inspection (speed, performance, gas main automatic adjustment system and full jump alarm): b) Actual volume flow:
d) Gas pressure relative to the delivery station:
d) Leakage.
7.1.1 Factory inspection standard
JBT9933
The measured volume display, specific power list and prototype performance test results should not exceed the requirements of 5 years. Table 5: Speed and volume ratio of the main engine when leaving the factory for inspection and monitoring 7.2: The speed of the main engine when full load is 7.2: The volume ratio of the main engine is 7.2: The speed of the main engine is 7.2: The volume ratio ...
Table 6 Sample inspection capacity
Autumn vegetables
Block size
201-:00
>30℃
Qualified judgment question
Unqualified profit display number R
7.2.2 The full load continuous flow test time of the sample inspection should not be less than 48h. During the test, the working condition of the air compressor should be inspected, and the air volume, auxiliary power, transfer, various levels of transformers, non-gas temperature and stopping power and cooling consumption should be measured. At the end of the operation, the steam temperature should be checked to see if it meets the requirements of this standard.
7.2.3 If the random inspection fails, the manufacturer shall check the batch of products one by one, and the non-conforming products shall be reviewed and dealt with according to the prescribed procedures. 7.3 Type Inspection
7.3.1 Trial-produced air compressors (including new products and total products produced in the factory) shall be subject to type inspection. During the inspection, the continuous operation time at full load shall be at least 500 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.2 Normally produced air compressors, if there are major changes in structure, materials, and process that may affect product performance or the normal production of the machine for a long time, shall be subject to type inspection. At the end of the inspection, the continuous operation time shall be at least 200 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours.
7.3.3 Air compressors that have completed normal production shall be subject to type inspection periodically or after a certain number of accumulations. During the inspection, the continuous operation time at full load shall be at least 21 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.4 When the air compressor is running and running for 2 hours, a performance test shall be carried out to measure the air compressor capacity flow, shaft power, suction and exhaust pressure and temperature. Noise level, vibration and cooling water elimination volume. The measured results shall comply with the requirements of the standard.
7.3.5 Within the last 9 hours of the type inspection, the air volume dynamic adjustment system shall be tested for feasibility and then carried out 8 to 15 times. 1. The operation shall be stopped normally:
7.3.6 After the configuration inspection, it shall be disassembled for inspection and the elimination value shall be measured. The results shall comply with the requirements of Table 4. For the type inspections specified in 7.3.1 and 7.32, the loss of each component shall be recorded and the result shall be confirmed. 7
8 Marking, packaging and storage
8. 1 The air compressor ring seat has a clear fixed position plate, and the nameplate size is in accordance with GBT1336. The nameplate of the air compressor should at least indicate the following: 1) Model name: 2) Flow rate, mm/min; 3) Rated exhaust pressure, Ma: 4) Speed, r/min; 5) Shape (length ××, m, 6) Dead distance, kg; 7) Step door No.:
) Year and month of manufacture;
) Name of manufacturer and its address (for export products, such as "People's Republic of China") 8.2 The packaging of type
air compressors shall comply with the provisions of ISO 7663.1. 8.3 After the air compressors are packaged, they shall be stored in a ventilated and dry room or a sheltered place that will not be exposed to moisture. They shall not be packed with medium. Under normal transportation conditions, the products shall be guaranteed to be free of rust within 6 months. Special requirements shall be provided and the supply and demand parties shall cooperate to set up the supervision.After 5 hours, check the following items: a) Machine inspection (speed, performance, gas main automatic adjustment system and full jump alarm): b) Actual volume flow:
d) Gas pressure relative to the delivery station:
d) Leakage.
7.1.1 Factory inspection standard
JBT9933
The measured volume display, specific power list and prototype performance test results should not exceed the requirements of 5 years. Table 5: Speed and volume ratio of the main engine when leaving the factory for inspection and monitoring 7.2: The speed of the main engine when full load is 7.2: The volume ratio of the main engine is 7.2: The speed of the main engine is 7.2: The volume ratio ...
Table 6 Sample inspection capacity
Autumn vegetables
Block size
201-:00
>30℃
Qualified judgment question
Unqualified profit display number R
7.2.2 The full load continuous flow test time of the sample inspection should not be less than 48h. During the test, the working condition of the air compressor should be inspected, and the air volume, auxiliary power, transfer, various levels of transformers, non-gas temperature and stopping power and cooling consumption should be measured. At the end of the operation, the steam temperature should be checked to see if it meets the requirements of this standard.
7.2.3 If the random inspection fails, the manufacturer shall check the batch of products one by one, and the non-conforming products shall be reviewed and dealt with according to the prescribed procedures. 7.3 Type Inspection
7.3.1 Trial-produced air compressors (including new products and total products produced in the factory) shall be subject to type inspection. During the inspection, the continuous operation time at full load shall be at least 500 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.2 Normally produced air compressors, if there are major changes in structure, material, and process that may affect product performance or the machine will be out of production for a long time, shall be subject to type inspection. At the end of the inspection, the continuous operation time shall be at least 200 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours.
7.3.3 Air compressors that have completed production shall be subject to type inspection periodically or after a certain number of accumulations. During the inspection, the continuous operation time at full load shall be at least 21 hours, and the rated exhaust pressure shall be 1.05% of the rated exhaust pressure for 4 consecutive hours. 7.3.4 When the air compressor is running and running for 2 hours, a performance test shall be carried out to measure the air compressor capacity flow, shaft power, suction and exhaust pressure and temperature. Noise level, vibration and cooling water elimination volume. The measured results shall comply with the requirements of the standard.
7.3.5 Within the last 9 hours of the type inspection, the air volume dynamic adjustment system shall be tested for feasibility and then carried out 8 to 15 times. 1. The operation shall be stopped normally:
7.3.6 After the configuration inspection, it shall be disassembled for inspection and the elimination value shall be measured. The results shall comply with the requirements of Table 4. For the type inspections specified in 7.3.1 and 7.32, the loss of each component shall be recorded and the result shall be confirmed. 7
8 Marking, packaging and storage
8. 1 The air compressor ring seat has a clear fixed position plate, and the nameplate size is in accordance with GBT1336. The nameplate of the air compressor should at least indicate the following: 1) Model name: 2) Flow rate, mm/min; 3) Rated exhaust pressure, Ma: 4) Speed, r/min; 5) Shape (length ××, m, 6) Dead distance, kg; 7) Step door No.:
) Year and month of manufacture;
) Name of manufacturer and its address (for export products, such as "People's Republic of China") 8.2 The packaging of type
air compressors shall comply with the provisions of ISO 7663.1. 8.3 After the air compressors are packaged, they shall be stored in a ventilated and dry room or a sheltered place that will not be exposed to moisture. They shall not be packed with medium. Under normal transportation conditions, the products shall be guaranteed to be free of rust within 6 months. Special requirements shall be provided and the supply and demand parties shall cooperate to set up the supervision.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.