Some standard content:
UDC 629. 12 : 621. 5. 041
National Standard of the People's Republic of China
GB/T14359—93
Marine emergency piston type air compressor
Marine emergency piston type air compressor1993-04-17Promulgated
State Bureau of Technical Supervision
1993-12-01Implementation
W.National Standard of the People's Republic of China
Marine emergency piston type air compressor
Marine emergency piston type air compressor1 Subject content and scope of application
GB/T 14359—93
This standard specifies the classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of marine emergency piston type air compressors (hereinafter referred to as air compressors). This standard applies to marine emergency piston type air compressors. 2 Reference standards
GB191 Packaging, storage and transportation pictorial symbols
GBn 193 General technical conditions for packaging of exported machinery and electrical instrument productsGB573 Marine lap-welded steel flanges
GB574 Marine butt-welded steel flanges
GB 1105.3
Standard for internal combustion engine bench performance test method Standard for environmental conditions and power, fuel consumption and oil consumption Bench performance test method for internal combustion engine Bench performance test method for internal combustion engine Test technology GB3033
Paint color for ship pipelines and identification symbols GB3853
Performance test method for general positive displacement air compressors Determination of sound power level of positive displacement compressors Engineering method GR 4980
Measurement method for vibration intensity of auxiliary machinery in ship engine room GB 11706
Marine medium-pressure piston air compressors
GB 12928
JB8 Product Label
JB2759 General Technical Conditions for Packaging of Electromechanical Products 3 Terms
3.1 Rated working condition: The working condition of the air compressor determined by the rated speed and rated exhaust pressure. 3.2 Standard suction state: The state where the suction temperature is 20℃, the pressure is 0.101 MPa, the relative humidity is zero, and the cooling water inlet temperature is 15℃ (water-cooled air compressor) before the suction port.
3.3 Volumetric flow The volume of air measured at the exhaust port of the air compressor during the unit time of operation under rated working conditions and converted to the air volume at the temperature and pressure of the air before the first-stage air inlet (including the air volume converted from the condensed water in the air collected from the air storage tank, intercooler, etc.).
3.4 Nominal speed: The ideal speed rounded off from the rated speed for designing air compressors and comparing air compressor performance. 3.5 Standard thrust volume flow rate: The volume flow rate converted to the air volume under the standard thrust suction state and nominal speed. Approved by the State Bureau of Technical Supervision on April 17, 1993 and implemented on December 1, 1993www.bzxz.net
W.bzsoso:com4 Product classification
4.1 Basic type
CB/T 14359-93
4.1.1 Air compressors are divided into V-type, W-type or vertical type without crosshead. 4.1.2 Air compressors are water-cooled (seawater cooling or water cooling) or air-cooled. 4.1.3 Air compressors are driven by electric or diesel engines. 4.1.4 The transmission mode of air compressors is straight or angle belt. 4.2 Basic parameters
The basic parameters of air compressors are shown in Table 1.
Standard capacity
50H yuan
4.3 Product marking
4.3.1 Number indicates
The model of the air compressor is indicated as follows:
口-日/
4.3.2 Marking example
Shaft power
Rated exhaust pressure MPa
-Standard volume flow m*/h
F—Wind head
S indicates water cooling
Cooling method
【AC motor drive is not indicated
DC motor drive
D-—Diesel drive|| tt||W——W plastic air compressor
V.-V type air compressor
Z——Vertical test air compressor
Marine emergency air compressor
Driving power
W.GB/T14359—93
The marine straight-type AC motor-driven air-cooled emergency air compressor with a standard volume flow of 5m/h and a rated exhaust pressure of 3MPa is marked as:
Compressor CYZF:5/3GB/T14359
5 Technical requirements
5.1 Environmental conditions
The air compressor should be able to work normally under the following conditions of use. Transverse ±22.5\;
Vertical ±10°:
Slight inclination ±22.5°
Vertical inclination ±10°
Environmental temperature is 5～~0℃
The maximum inlet temperature of seawater for cooling is 32℃, and the maximum inlet temperature of fresh water for cooling is 42℃h.
The air entering the air compressor contains trace oil mist and disk mist, and the maximum relative humidity is 95%. 5.2 Performance
5.2. 1 The value of the volume flow rate measured by the air compressor under rated conditions converted into the standard volume flow rate should not be less than 95% of the value specified in Table 1, and the shaft power should not be greater than the value specified in Table 1. 5.2.2 The endurance test time of the air compressor is 500h. The main parts of the air compressor (cylinder block, cylinder head, crankcase, piston, piston pin, connecting rod, connecting rod thread, crankshaft, etc.) should not be damaged or damaged during the endurance test period that affects the normal operation of the compressor. The value of each clearance should not exceed the allowable limit value.
The service life of the air compressor valve plate and air valve spring should not be less than 1000. 5.2.3 The structure of the air compressor should ensure safe operation for 1h under the condition of rated speed and final exhaust pressure of 105% of the rated exhaust pressure.
5.2.4 Water-cooled air compressors or diesel engine-driven air compressors must be equipped with cooling water system. 5.2.5 When the first stage air intake temperature is 50℃, the cooling water temperature is 32℃ (seawater) or 42℃ (fresh water), and the final exhaust pressure is the rated exhaust pressure, the exhaust temperature of each stage (including air-cooled air compressor) should not exceed 200°C. 5.2.6 The air filter entering the air bottle shall not exceed the water intake temperature plus 30℃ for water-cooled air compressors. It shall not exceed the ambient temperature plus 40℃ for air-cooled air compressors. A small fusible plug or alarm device shall be provided at the outlet of the air compressor cooler, which will sound when the air temperature exceeds 121℃. 5.2.7 When the air compressor is operating under the rated working condition, when the first stage air intake temperature is 50℃, the lubricating oil temperature in the crankcase shall not exceed 700℃ for water-cooled type and 80℃ for air-cooled type. The flash point of the compressor oil shall be 20℃ higher than the highest compression temperature in the cylinder. 5.2.8 The oil consumption of the air compressor for compressing 1m air (inhalation state) should not be less than 0.7g. 5.2.9 The air compressor should be lubricated by long-duty lubrication. The oil filter should be able to remove mechanical impurities. The oil pump pressure should not be less than 0.1 MPa and can be properly adjusted. Necessary measures should also be taken to ensure positive lubrication when the air compressor is started. 5.2.10 The cooling water pressure of the water-cooled air compressor should not be less than 0.05 MPa. 5.2.11 The automatic control device of the narrow-displacement unit is divided into two forms: semi-automatic and fully automated. The semi-automatic mode includes automatic start-up, automatic shutdown, automatic unloading, and automatic discharge. The fully automated mode includes automatic start-up, automatic shutdown, automatic unloading, automatic discharge, and additional necessary automatic protection devices and alarm devices. 5.2.12 For air compressors driven by diesel engines, the diesel engine must be started manually. 3
W.GB/T 14359—93
5.2.13 Under the condition that the user complies with the use rules, if the product is damaged or cannot work properly due to poor manufacturing quality within 12 months after delivery, the manufacturer shall repair or replace the parts for the user free of charge. 5.3 Safety and environmental protection requirements
5.3.1 The safety valve of the air compressor should be flexible, safe and reliable. When the exhaust control valve is fully closed, the exhaust pressure of the air compressor rises to 10% of the rated air pressure, the last stage safety valve opens, and the exhaust pressure does not rise. The starting pressure of the interstage safety valve should not exceed 120% of the rated exhaust pressure of the stage.
5.3. 2 The rupture of the safety film on the cooling water chamber or the starting pressure of the safety valve is 0. 4~0.15 MPa. 5.3.3 The noise power level of the air compressor installed on the test bench of the manufacturer and operating under rated conditions should not exceed 104dB(A)5.3.4 An air intake silencer filter should be installed at the air intake of the air compressor. 5.3.5 The air unit is installed on the manufactured test bench, and the vibration intensity value of the operation under rated conditions should not be greater than 28 mm/s. 5.3.6 The sudden action device and the transmission device should be equipped with a protective cover with metal wire mesh or steel plate as the main material. 5.4 Appearance quality requirements
5.4.1 The casting, welding and processing surfaces of the outer surface of the air compressor should be cleaned thoroughly to remove rust and dirt. The painted surface should be flat and smooth with uniform color. Fasteners and operating parts should be decorated, and the paint should be able to prevent corrosion from salt spray, oil mist and moisture. The outer surface of the cylinder and cylinder head of the air-cooled punching press is not allowed to be puttyed. It should be sprayed with thermal conductive paint with good thermal conductivity (such as silver powder paint, etc.). 5.4.2 The air pipe, water pipe and oil pipe of the air machine should be connected to (GB 3033 Painted in the specified color to indicate the purpose of the ridge. 5.4.3 External fastening parts and operating parts should be decoratively treated (such as bluing, lead plating). 5.4.4 The manufacturer guarantees that the paint of the air compressor will not peel off within 18 hours after delivery under the condition that the user complies with the usage rules. 5.5 Material requirements
5.5.1 The materials selected for the main parts of the air compressor should comply with the current domestic specifications and standards. 5.5.2 The main parts of the air compressor should undergo chemical analysis of materials: surface hardness, metallographic inspection and mechanical property test. 5.5.3 All rubber parts that come into contact with lubricating oil, compressed air or oil mist should be made of oil-resistant and temperature-resistant rubber. 5.6 Process requirements
5.6.1 The actual weight of the piston, connecting rod, and balance iron should not deviate from the weight shown on the drawing by more than the following provisions: Piston: ±5%
Connecting rod: ±3%
Semi-balance iron: ±4%
Flywheel (pulley) should be statically balanced
5.6.2 When the air compressor and the source or machine are directly connected with an elastic coupling, the alignment of the two machine shafts should meet the following requirements: The radial runout tolerance of the coupling outer circle is not more than 0.05mm The runout tolerance of the coupling end face is not more than 0.1cmm5.6.3 In order to make it easy to reset the air compressor and the source motor after disassembly, the prime mover and the common base should be positioned with locating pins. 5.6.4 The pressure-bearing parts of air and cooling water should be tested for water pressure. The air cavity and piston of the cylinder, cylinder head, cooler, liquid-gas separator, etc. should be tested for water climbing at a rated working pressure equal to 1.5%; the water pressure test pressure of the cooling water circuit is 0.5MPa+30 for all kinds of water pressure tests. min, no leakage allowed.
5.7 Structural requirements
5.7.1 The crankcase should be equipped with a lubricating oil supply hole, oil gauge, drain plug, explosion-proof valve or appropriate ventilation device. 5.7.2 The bottom of the cylinder water jacket should be equipped with a cooling water drain hole and a drain cock. The inner wall of the water cavity should be protected from corrosion. 5.7.3 The air conditioner should be equipped with an intermediate cooler and an aftercooler. The cooling water jacket shall be provided with a cooling water safety or safety membrane and equipped with a discharge cock or discharge valve.
5.7.4 The air compressor must have a discharge mechanism, and in the case of automatic control, a mechanism that can be manually operated must also be provided. 5.7.5 The air compressor shall be equipped with a liquid-gas separator. 5.7.6 The connection of the air, water and oil circuits of the air compressor shall ensure sealing, facilitate disassembly and assembly, and be vibration-proof. 4
WGB/T 14359-93
5. 8 When the air compressor exhaust port and cooling water inlet external pipes are connected by flange structure, the air compressor external flange shall comply with GB 573, GB574.
5.9 Products supporting the air compressor, such as the prime mover and its ancillary equipment, automatic control devices, water pumps, hydraulic meters, dew reducers, etc., shall meet the requirements for marine use. The acceptance and appraisal of these products shall be carried out in accordance with the relevant standards and regulations. 5.10 The air compressor unit shall be installed horizontally, and the crankshaft axis shall be parallel to the longitudinal axis of the hull. 6 Test methods
6.1 Adjustment test
Each air compressor shall be subjected to 2 The adjustment test can be carried out only after more than h of running-in. During the adjustment test, the air compressor is operated under rated conditions, and vibration, noise, cooling water and lubricating oil leakage and other abnormal phenomena are checked. The adjustment test results of each air compressor should be recorded in detail. 6.1.1 Adjust the oil pressure, water pressure and inlet and exhaust pressure at all levels. 6.1.2 The air compressor is operated under rated conditions, and the safety valve and safety membrane are adjusted to meet the requirements of Articles 5.3.1 and 5.3.2. Each safety valve is marked after passing the test three times.
6.1.3 Carry out performance tests such as automatic start, stop, load protection, discharge and protection (alarm) to check the accuracy and reliability of its action. The number of tests should be no less than 3 times.
6.2 Performance test
All performance tests of the air compressor should be carried out with a complete set of air compressor units. The air temperature and pressure of each level of the air compressor, the pressure and water volume of the cooling water, the lubricating oil consumption, the speed, etc. are all in accordance with GB 3853 Test. 6.2.1 The method for measuring the volume flow of the air compressor shall comply with the provisions of GB3853, using the nozzle method or the tank filling method. 6.2.2 When the transformer is driven by an electric or motor, its shaft power shall be tested in accordance with the provisions of GB3853. 6.2.3 When the air compressor is driven by a diesel engine, the output power of the prime mover shall be measured in accordance with the provisions of GB1105, and the shaft power of the air compressor shall be calculated according to the following formula:
Where: N - compressor shaft power,
N, - diesel engine output power, kw:
7 - transmission efficiency, selected in accordance with the provisions of GB3853. 6.2. 4 Install the empty machine on the manufactured test bench and operate it under rated conditions, and measure the vibration in accordance with GB 11706. 6.2. 5 Install the empty machine on the manufacturer's test bench and operate it under rated conditions, and measure the vibration in accordance with GB 4980 Measure the noise. 6.2.6 The air compressor is operated continuously for 1 hour at the rated speed and the final exhaust pressure is 105 of the rated exhaust pressure. 6.3 The endurance test should be carried out under the rated working conditions, and performance tests should be carried out regularly. For newly designed convex prototypes, the cumulative operation time of the endurance test should be no less than 500 hours, and the cumulative number of starts during the test should be no less than 50 times. For other types of air compressors (including the same type of design: the same diameter of the modified units and units produced by the conversion) the operation time of the endurance test should be no less than 25 hours, and the cumulative number of starts during the test should be no less than 25 times. The number of starts test can be carried out in a single concentrated period of time during the endurance test, but it must be ensured that the air compressor is stopped for no less than 0.5 hours before each start. During and after the endurance test, the main parts should be disassembled for appearance quality inspection and friction and wear measurement.
6.4 Service condition test
The marine condition test of the air-displacer engine should be carried out under rated working conditions. The test items and requirements shall be carried out in accordance with the provisions of Table 2. 5
Wbzsoso.cOnTest name
Horizontal: 22.5°
Directional±10°
1±100
Ambient humidity50℃
Relative humidity95%
Swing period
Cold water inlet temperature: 32℃
Water temperature42℃
7 Inspection rules
GB/T 14359—93
Operation time
Test items
Measurement of volumetric quantity, shaft power, cooling water, lubricating oil and air temperature and pressure at all levels, bearing temperature, check the friction and damage of cylinders, bearings, etc., air accumulation, instrument pipeline components, vibrators, etc. 7. 1 Empty machine inspection is divided into empty inspection and type inspection. The inspection items shall be in accordance with the provisions of Table 3. Table 3
Test items
Air, water and oil pressure
Safety valve
Safety membrane
Actuation control device
Accumulated flow
Capturing power
Overload performance test
Long-term test
Ship and load test
Corresponding technical terms
4.2+5.2.9;5.2.10
5. 3. 1,5. 3. 2
Factory inspection
Inspection type
Type inspection
First sample
7.2 Factory inspection
Each air compressor shall be subject to factory inspection and shall be allowed to leave the factory only after the manufacturer issues a certificate of conformity. 7.3 Type inspection
7.3.1 Type inspection shall be conducted when any of the following conditions occur. Trial type inspection of new products and old products for transfer to factory production: after formal production, when there are major changes in materials and processes that may affect product performance; h
In normal production, an inspection shall be conducted every four years or after 100 units are produced; C
When the product is resumed after two years of suspension;
When there is a major difference between the factory inspection and the previous type inspection; t+
When the national quality supervision agency proposes a requirement for type inspection. f
W.GB/T14359—93
7.3.2. The prototype of the type to be used should be adjusted and tested first. The test results of the production performance index should be in accordance with the relevant documents before the endurance test can be carried out. Before the test, the air compressor should be fully inspected and the friction parts should be measured as necessary so that the wear amount can be counted at the end of the test.
7.4 The prototype of the newly designed air compressor must be tested for marine parts. The modified units of the same type and cylinder diameter of the newly designed unit and the units of the transferred production can be exempted from the condition test. 7.5 Judgment rules
If any of the following conditions occur during type control, the test to be carried out shall be considered unqualified and the test shall be repeated. The volume flow rate shall be reduced by more than 8% compared with the beginning of the test: a
The main parts are damaged or damaged to affect the normal operation of the air compressor; the main clearance value exceeds the use limit value specified in the product description; d The life of the parts is less than the service life.
Note: 1) The main parts include the cylinder head, crankcase, piston pin, connecting rod, connecting rod thread, crankshaft, etc. 8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 Product marking
Each air compressor shall be fixed with a label in a conspicuous place. The label size, technical conditions and other requirements shall comply with the provisions of JB8, and a place for the ship inspection stamp shall be reserved.
8.1.2 Packaging mark
The packaging mark shall be in accordance with the mark regulations of JH2759 packaging box surface. 8.2 Packaging
8.2.1 The packaging of the air compressor shall be selected according to the provisions of JB2759 according to the transportation conditions. For export units, it shall be avoided according to the provisions of GB193. 8.2.2 Random technical documents
Product compliance certificate, test report and inspection certificate.
Product manual, including the purpose, performance, technical parameters and machine weight of the product. Product structure description, also installation operation and maintenance instructions: installation requirements: faults and troubleshooting methods: various technical data required for use and repair, main parts matching dimensions and assembly space, compensation and monthly clearance; unit appearance drawing, installation drawing; (with the unit's center of gravity position in three coordinate directions); external pipe connection dimensions and its position in three coordinate directions, general assembly drawing, system principle circuit diagram. When the source engine is a diesel engine, the original engine instruction manual including the above main contents must also be attached. c. Technical logbook.
Packing image
e: List of accessories and special tools. The supply specifications and quantity of spare parts and special tools shall comply with the technical documents approved by the prescribed procedures. If there are special needs, they can also be supplied according to the specifications and quantities of the order agreement.
. Language used for the technical documents of the compressor.
The technical documents accompanying the compressor are generally written in Chinese and English. They can be translated into other terms when necessary. They can be written in Chinese only when they are only used in China. The name, number and manufacturer of the air compressor should be written on the cover of the document. 8.3 Transportation
8.3.1 The installation, storage and transportation indication signs should be selected in accordance with the provisions of GB191, and damage is not allowed during transportation. 83.2 It is allowed to be transported by any means of transportation, but it is not allowed to be subjected to strong vibration. 8.4 Storage
B.4.1 The air compressor unit should be placed alone in the warehouse. W.GB/T14359-93
8. 4.2 It should be moisture-proof and ensure that there is no rust or damage within 6 months. Additional instructions,
This standard is proposed by China Shipbuilding Industry Corporation. This standard is under the jurisdiction of the Engine Room Auxiliary Machinery Sub-Technical Committee of the National Technical Committee for Standardization of Marine Machinery. This standard is drafted by the Shanghai Ship Equipment Research Institute of China State Shipbuilding Corporation. The main drafter of this standard is Liu Tianjie.
W.
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.