Some standard content:
[CS 91. 140. 30
People's Republic of China Public Security Industry Standard GA481-2004
Smoke damper (vent)
2004-03-29 Issued
Ministry of Public Security of the People's Republic of China
2004-10-01 Implementation
The sixth paragraph of this standard is mandatory, and the rest are recommended provisions. The Ministry of Public Security Fire Protection Research Institute is responsible for this standard. This standard is drafted by the National Fire Protection Standardization Technical Committee, and the responsible unit of this standard is the Ministry of Public Security Fire Protection Science Research Institute. This standard is drafted by: Shenzhen Tongtong Mechanical and Electrical Equipment Co., Ltd. The drafters of this standard are: Liu Cangai, Ling Haijiang, Han Qingfa, Lin Chuguo. This standard is entrusted to the Ministry of Public Security: Daban Fire Protection Research Institute is responsible for interpretation. G.4 481—204
1 range
GA 4E12004
This standard specifies the classification, specifications, marking, requirements, test methods, inspection rules and marking, labeling, packaging, transportation, use and storage of products for general use of smoke exhaust (industrial and civil buildings, including underground smoke exhaust systems (three), 2 Normative reference documents
The clauses in the underlined documents become the clauses of this standard through reference in this standard. For example, if the referenced documents are of a later date, all subsequent specifications (excluding the content of the measures) or incorporation are applicable to this standard. However, it is encouraged that the relevant parties reach an agreement based on the technical standards to make the latest versions of these documents available. From the referenced documents of the later date, the latest versions are applicable to this standard. G3/T11 Package transportation Tour mark
GET 180J2G63
A public company's linear angle tracking scale, tolerance B/T[DY, 1 small strong spiral spring technical specification 1/2453.! —200" Electrical and electronic products environmental inspection Part 2: Test method Test A: Low temperature (13/T2428.2—20M1 Electrical L in the product environmental inspection Part 2: Test method Test: High temperature GB/T2828.1 Number sampling inspection procedures English-part, acceptance quality limit (AQ L) Search the actual batch inspection oil column number: B. "General rules for product instructions on the above industry products
GB/T-33) label
GB/T338:
Mechanical and electrical products driving & communication technical system
(/12236T industry product maintenance and transportation support parts general rules
(H15031-15 fire inspection method
3 terms and definitions
The following special provisions are applicable to this standard, 3. 1
Smoke exhaust valve kmnkedamper
In the mechanical smoke exhaust system of the building, it is usually closed. When smoke is needed, it is electrically changed to manually open the door. 3.2
Smoke exhaust outlet skrv!
Installed in the non-state system and personnel of the building, the non-smoke valve buried in the surface is called exhaust. 4 Smoke exhaust (outlet) classification and specifications
4.1 Classification
4.1.1 Classification of structural types
Leaf-type exhaust valve
4.1.2 Classification by opening shape
Exhaust valve! :
Smoke exhaust ()
GA 481-2004
4.2 Specifications
4.2. Version of the heat exchanger with heat treatment system, see the table: Table 1
Common specifications for round smoke exhaust valve ports
Ring mutual degree
Note: Changzhou specifications
Reciprocal can be used in the form of a square
(public type room
Table 2 Common specifications for round smoke exhaust width (port)
Valve ()
5 Smoke exhaust port! Marking
5. 1 Nominal size
The unit is meter
The public opening of the non-smoke port is the nominal height of the mouth [; the public size of the smoke port is the public size of the mouth, and the letter in front is the blood. 5.2 Structural improvement number
When there is a major improvement in the exhaust system (see 1) and the number of improvement marks on the original exhaust system (see 1) can be used in the order of improvement to distinguish the exhaust system (see 1). 5.3 Marking
The front (see 1) mark is:
Exhaust smoke adjustment -
Structural improvement number (see 2)
Structure number: 1.1)
Male size (mm1) see h, 1))
Frequency completion 1 work heart construction (A) ||tt ||Rated working voltage (V)
For example 1 181A0C×25/3.3, the main structure of the GA431 network is a rectangular type, the diameter is 4mmx4.. The two working electrodes are 1x21V. The working current is .3 small, and the outlet is 14814-24/G5. It meets the 1481 safety standard and is rated at 4.Uu. The working current is Tx2V. The model is rated. The working current is: A, and the average efficiency is .2
6 requirements are required by the primary method! 2) The requirements of the technical standards should be met, and the manufacturing process should be carried out in accordance with the technical documents and the technical specifications. 6.1 Main materials and components
6.1.1 The smoke exhaust valve body (112) should be made of cold-rolled steel plate. 1.2 The smoke exhaust valve should comply with the requirements of GA 481-2004
6.1.3 The main moving parts such as the bearing and axle pin of the smoke exhaust valve () should be made of H-steel. The main moving parts such as stainless steel and other non-corrosive materials should be made of stainless steel. 6.1.4 The micro-mechanism of the smoke exhaust valve (1) should be made of new devices and electronic components. 6.1.5 The electronic components used in the smoke exhaust valve (1) should be qualified products inspected by the inspection agency. 6.1.6 The surface of the smoke exhaust port should be made of non-combustible materials such as rock composite steel plate. 6.2 Appearance quality
6.2. 1. () The smoke exhaust body and the surface of the picture shall not have cracks, uneven marks or seven defects. 6.2.2 The smoke exhaust net (1) The surface of the welding chain shall be smooth and flat, and there shall be no pores, fire or looseness. 6.2.3 The smoke exhaust net! 1 The surface points of the smoke exhaust net shall be smooth and flat, and the layer shall be solid. There shall be no paint shedding, shaving or sparseness, and the joints shall not be cracked or peeled off. 6.3 Dimensional tolerance
The size tolerance of the smoke exhaust net (the size tolerance of the smoke exhaust net shall comply with the C-level tolerance grade in GB/T18042). 6.4 Opening reliability
6.4.1 Smoke outlet after 25) opening and closing test. The electric and manual action exhaust valve should be opened immediately. 6.4.2 After 252 times of self-test, when the total pressure before and after closing is 39 (P1=F), the valve should be opened immediately. 6.5 Corrosion performance
() After salt and other tests, the electric and manual action exhaust valve should be opened immediately. 6.65 Manual operation performance and electric operation performance! The exhaust valve has electric and manual activation devices. 6.6.1 Manual operation performance
6.6.1.1 The state steel (mouth) three-way network installation should be used. 6.6.1.2 The mode of the automatic start of the drain valve (mouth) should not be greater than 1W26.6.2 Electric operation performance
6.G.2.1 The rated working voltage of the drain valve (mouth) is DC21V, and the frequency is not suitable for 0.50A. 6.6.2.2 The drain valve (mouth) is equipped with a special electric, Under the condition of rated voltage reduction of 13% and increase of 10)5%, it should be flexible and can be used at the bottom
6.7 Open signal output function
The valve port has the energy of starting and removing the mountain. 6.8 Electrical insulation performance
At room temperature, the insulation between the external live terminal of the valve port and the body of the mechanism, and between the source head and the housing of the mechanism should not be less than 2uM51.
6.9 Low temperature resistance
The smoke control valve (1) should be able to work normally at a temperature of 23℃ or above. 6.10 High temperature resistance
The smoke control valve (1) should be able to work normally after 24h at a temperature of 5℃ or above. 6.11 Sliding air volume under ambient temperature
When the difference between the state valve () before and after is 1201-151, the full air volume under standard conditions should not be large GA 481—2004
((/㎡-h.
7 Test methods
7.1 Main materials and seasonal parts
Smoke exhaust reading (口) The main materials and seasonal parts should be provided by the inspection form and warranty form provided by the private party and meet the requirements of 6.1. 7.2 Appearance quality
Smoke exhaust reading (口) The appearance quality of the quarterly report should be inspected by daily measurement, manual measurement and other methods. The appearance quality method should meet the requirements of 6.2.
7.3 Dimension tolerance
Smoke exhaust reading (口) The length of each dimension and diagonal line can be measured with a vernier caliper, and the difference between the lengths of the two pairs of lines should be within the limits of 6,3.
7.4 Opening reliability test
7.4.1 Install the smoke exhaust panel on the test device, put it in the closed state, open and close the exhaust electrically and manually (口) 125 times, and open and close it continuously for 253 times. For the 25U opening and closing tests, the automatic and manual smoke exhaust (T) are opened and closed three times respectively. The test results should comply with the requirements of 5.4.1.
7.4.2 After 250 opening and closing tests, make the smoke exhaust panel in the closed state (-7), then start the fan and adjust the corresponding valve and fine adjustment valve to make the smoke exhaust panel (front and rear pressure is 10P + 15Pm:1) and wait for the specified time. The results of the two tests should comply with the requirements of 6.1.2.
7.5 Corrosion resistance test
The salt spray test in non-smoking room (mouth) shall be carried out according to 7.3.1 of 19931-1995. After the salt spray test, the electric and manual exhaust valves (mouth) shall be opened and closed respectively. The test results shall comply with the provisions of 6.5. 7.6 Manual performance test
7.6.1 Test equipment
Dynamometer, the actual load measured by the dynamometer shall be within 20% of the effective range of the dynamometer. The maximum error of the test is -2 2.
7.6.2 Test steps
Fix the smoke exhaust light on the test bench, and put it in the closed state. Connect the dynamometer to the exhaust network! The operation pulls the upper plate to raise the tension of the exhaust (mouth). The speed should be able to read the meter. The principle is to check the speed. The dynamic performance should comply with the provisions of 6.5.1. 7.7 Electric operation performance test
7.7.1 Test equipment
DC pressure bird,
7.7.2 Test steps
1-digit display method.
Put the non-smoke exhaust valve (mouth) in the closed state on the DC steady power supply and connect it. The output voltage of the DC steady power supply Adjust to non-smoke and (must be set to 1 bottle top pressure 21V, step on the hall to connect the power supply (mouth> into the opening. Then use a multimeter to measure its working current: then, make a stable power supply, reduce the white voltage by 15% and increase it by 10%, and electrically open the exhaust valve (mouth respectively. The result meets the requirements of 5.%.2,
7.B Turn on the signal output function
Observe the output signal of non-smoke (mouth) after the signal is turned on, 7.9 Electrical single contraction performance test
2.9.1 Test equipment
0M-500M megohmmeter,
7.8.2 Test step rate
GA 481—2004
Under the temperature control, apply a direct voltage of V ± 0V for 60 min to 50 min between the live terminals of the valve and the actuator housing, and between the power plug and the actuator housing (the power switch is in the on position. The power plug is not connected to the power grid), and then measure the insulation value. The measurement should meet the requirements of the current regulations. 7.15 Temperature resistance test
7.13.1 Test equipment
The test equipment should meet the requirements of GB 2-33.1101, Section 3. 7.10.2 Test steps
The test chamber is in a closed state and the temperature is reduced to 25-3% within 30 min + 5mia before the test. The machine temperature is 16 . Use non-smoke valve (mouth). After the period of 1h, conduct an opening and closing test. The test results should meet the requirements of 6.! 7.11 High temperature resistance test 7, 11. # Test equipment The test equipment shall comply with the provisions of G23.22C6 Chapter 3. 7.11.2 Test steps Exhaust valve: Put the mouth of the whole box in a closed state. Within 10min ± 2min, the temperature of the test box reaches 55:27, and the test box is closed for 1h. The smoke exhaust valve (mouth) is placed at room temperature and then closed. The test results meet the requirements of 6.10. 7.12 Air leakage test under ambient temperature and pressure 7.12.1 Test equipment The test equipment includes a gas or system and a pressure sensor and a control system. The flow meter must be installed in the test equipment at the location of the pressure gauge. The pressure gauge should be installed at the pressure gauge of the test equipment. 12.1.1 Gas flow measurement system
For the pressure information, please refer to the design
Figure 1 Temperature and air volume test device
, the integrated flow measurement system is composed of pipeline, gas flow meter and fan system. In addition, it is necessary to connect the pipeline with the gas flow meter. The connecting pipeline bed is not less than 16m thick steel core manufacturing. The opening should be relatively small with the size of the exhaust valve (orifice), and the length should be less than twice the diagonal of the opening, and no more than 2
Gas flow meter design error: ±5%! Minimum error: 15a
GA 4812G04
The maximum allowable error of the barometer: +2a
The maximum error of the thermometer.
Draught system: including the induced draft fan, the coarse adjustment time and the fine adjustment to connect the induced draft fan with the gas flow meter, 7.12.1.2 Pressure measurement control system
The pressure before and after the exhaust valve (outlet) is close to the power transmission end, and the pressure outlet is located on the center line of the road surface. The pressure difference before and after the plate is controlled by the phase adjustment cell and fine adjustment.
7.12.2 Test steps
7 .12.2.1 Install the valve (orifice) and make it in a closed state. Then start the small fan, adjust the valve and the pressure gauge to make the gas pressure before and after the exhaust (orifice) 1000Pa ± 1000Pa. After stabilization, measure and record the gas pressure at the flow meter and the flow meter value Q. This flow value is the actual system air volume. At the same time, measure and record the air pressure during the test. .
7.12.2.2 Remove the seal at the exhaust gas outlet 11) and keep it in a closed state. Perform coarse and fine adjustments to make the gas pressure difference before the exhaust gas outlet still maintain Pu-25PL. After stabilization, measure and record the gas pressure F at the flow meter, gas temperature, and flow value. This flow value is the actual air volume of the whole machine. At the same time, record the atmospheric pressure H after the test.
7.12.2.3 Calculate the full air volume according to formula (1>) - smoke net (yuan) unit and the full volume. 0g
- exhaust valve (11) unit area full × or (standard Pu state 1, the unit is cubic meter per square meter per hour (/·): Q exhaust valve (mouth) of the machine leakage virtual (standard state), the unit is cubic program per small pair (m/)! - the system evening flow Zhuo (standard push state) single cubic per hour (m/: A- exhaust smoke reading (mouth) cross-sectional area single Deng square meter (product) BP
QQ: × 273 = 7 ×: 5: 327
formula Chinese:
exhaust (smoke exhaust tank (standard state) unit is cubic meters per hour) Q - according to 7.122,2 measured smoke exhaust () whole machine air volume, unit is cubic meters per hour (㎡); according to 7.1,2,2 measured smoke two (the whole machine required air volume, the integrated pressure at the flow meter, unit is Ming (: P
- according to 7.12.2.2 measured smoke control network () whole machine south wind flow meter unit is the body pressure at the flow meter, unit is the belt should () - according to 7.12.2.2 measured smoke valve () machine bacteria in the large single for fear (1): 213
Q=Q×23×51 23
1 - system air leakage (standard state) unit is cubic meters per hour): must - according to .12.2.1 measured system end air volume, unit is cubic meters per hour2 Test steps
Fix the smoke exhaust light on the test platform, close it, and drag the dynamometer to the exhaust network! The operation pulls the upper plate to raise the tension of the exhaust (mouth), and the speed should be able to read the meter. The principle is to check the speed. The dynamic performance should comply with the provisions of 6.5.1. 7.7 Electric operation performance test
7.7.1 Test equipment
DC pressure bird,
7.7.2 Test steps
1-digit display method.
Put the non-smoke valve (口>) in the closed state on the DC stabilized power supply and connect, adjust the output voltage of the DC stabilized power supply to 21V, turn on the power supply (口> to open. Then use a multimeter to measure its working current: Then, make a stabilized power supply, reduce the voltage by 15% and increase it by 10%, and electrically open the exhaust valve (口) respectively. The results meet the requirements of 5.%.2,
7.B Turn on the signal output function
Observe the output signal of the non-smoke valve (口) after it is turned on, 7.9 Electrical single contraction performance test
2.9.1 Test equipment
0M-500M megohmmeter,
7.8.2 Test step rate
GA 481—2004
Under the temperature control, apply a direct voltage of V ± 0V for 60 min to 50 min between the live terminals of the valve and the actuator housing, and between the power plug and the actuator housing (the power switch is in the on position. The power plug is not connected to the power grid), and then measure the insulation value. The measurement should meet the requirements of the current regulations. 7.15 Temperature resistance test
7.13.1 Test equipment
The test equipment should meet the requirements of GB 2-33.1101, Section 3. 7.10.2 Test steps
The test chamber is in a closed state and the temperature is reduced to 25-3% within 30 min + 5mia before the test. The machine temperature is 16 . Use non-smoke valves (mouth). After the valve is placed under the belt for a period of h, conduct an opening and closing test. The test results should meet the requirements of 6.! 7.11 High temperature resistance test 7.11.# Test equipment The test equipment shall meet the requirements of G23.22C6 Chapter 3. 7.11.2 Test steps Exhaust valve: Put the mouth in the closed state into the whole box. Within 10min ± 2min, the temperature of the test box reaches 55: "27, and the test is repeated for 1h. The smoke exhaust valve (mouth) is placed under normal temperature and then closed. The test results meet the requirements of 6.10. 7.12 Air leakage test under ambient temperature and pressure 7.12.1 Test equipment The test equipment includes gas or system and power verification and good control system. Part of the sensor 1, the flow meter upstream and downstream of the long straight section, the flow meter must be the gas rest measurement position, according to the technical requirements of the demand side, the atmospheric flow meter is installed in the test device needs to be dynamic increase".
From the force transmission male
H network (Japanese
7.12.1.1 Gas flow measurement system
pressure situation please go to the meter
Figure 1 Temperature and air volume test device
, the integrated flow measurement system is composed of pipelines, gas flowmeter and fan system. It is also connected to it: the test and verification is described through the connecting pipeline and the gas flowmeter. The connecting pipeline is made of steel core with a thickness of not less than 16m. The opening should be relatively small with the exhaust valve (mouth). The length is at least twice the diagonal of the opening, and no more than 2
Gas flow meter design error: ±5%! Small error: 15a
GA 4812G04
Atmospheric pressure gauge maximum allowable error: ±2a
Thermometer maximum measurement error ±1.
Draught fan system: including induced draft fan, coarse adjustment and fine adjustment to connect the induced draft fan and the gas flow meter, 7.12.1.2 Pressure measurement control system
The pressure before and after the exhaust valve (outlet) is close to the power transmission end, and the pressure outlet is located on the center line of the surface. The pressure difference before and after the plate is controlled by the corresponding cells and fine adjustment.
7.12.2 Test steps
7.12.2.1 Install the valve (outlet) and make it in a closed state. Then start the small fan, adjust the valve and the pressure gauge to make the gas pressure before and after the exhaust (outlet) 1000Pa ± 100Pa. After stabilization, measure and record the gas pressure at the flow meter and the flow meter value Q. This flow value is the actual system air storage volume. At the same time, measure and record the gas pressure during the test.
7.12.2.2 Remove the seal at the exhaust gas outlet 11) and keep it in a closed state. Perform coarse and fine adjustments to make the gas pressure difference before the exhaust gas outlet still maintain Pu-25PL. After stabilization, measure and record the gas pressure F at the flow meter, gas temperature, and flow value. This flow value is the actual system air storage volume. The whole machine maintains the air volume, and at the same time, the atmospheric pressure after the test is recorded as small H.
7.12.2.3 According to the formula (1> calculate - smoke net (yuan) unit and the full air volume. 0g
- exhaust valve (11) unit area full × or (standard Pu state 1, the unit is cubic meter per square meter per hour (/·): Q exhaust Xiang valve (mouth) of the machine leakage virtual (standard state), the unit is the cubic program per small pair (m/)! - the system evening flow Zhuo (standard push state) single cubic meter per hour (m/: A- exhaust smoke reading (mouth) cross-sectional area single Deng square meter (product) BP
QQ: × 273 = 7 ×: 5: 327
formula Chinese:
exhaust (smoke exhaust tank (standard state) unit is cubic meters per hour) Q - according to 7.122,2 measured smoke exhaust () whole machine air volume, unit is cubic meters per hour (㎡); according to 7.1,2,2 measured smoke two (the whole machine required air volume, the integrated pressure at the flow meter, unit is Ming (: P
- according to 7.12.2.2 measured smoke control network () whole machine south wind flow meter unit is the body pressure at the flow meter, unit is the belt should () - according to 7.12.2.2 measured smoke valve () machine bacteria in the large single for fear (1): 213
Q=Q×23×51 23
1 - system air leakage (standard state) unit is cubic meters per hour): must - according to .12.2.1 measured system end air volume, unit is cubic meters per hour2 Test steps
Fix the smoke exhaust light on the test platform, close it, and drag the dynamometer to the exhaust network! The operation pulls the upper plate to raise the tension of the exhaust (mouth), and the speed should be able to read the meter. The principle is to check the speed. The dynamic performance should comply with the provisions of 6.5.1. 7.7 Electric operation performance test
7.7.1 Test equipment
DC pressure bird,
7.7.2 Test steps
1-digit display method.
Put the non-smoke valve (口>) in the closed state on the DC stabilized power supply and connect, adjust the output voltage of the DC stabilized power supply to 21V, turn on the power supply (口> to open. Then use a multimeter to measure its working current: Then, make a stabilized power supply, reduce the voltage by 15% and increase it by 10%, and electrically open the exhaust valve (口) respectively. The results meet the requirements of 5.%.2,
7.B Turn on the signal output function
Observe the output signal of the non-smoke valve (口) after it is turned on, 7.9 Electrical single contraction performance test
2.9.1 Test equipment
0M-500M megohmmeter,
7.8.2 Test step rate
GA 481—2004
Under the temperature control, apply a direct voltage of V ± 0V for 60 min to 50 min between the live terminals of the valve and the actuator housing, and between the power plug and the actuator housing (the power switch is in the on position. The power plug is not connected to the power grid), and then measure the insulation value. The measurement should meet the requirements of the current regulations. 7.15 Temperature resistance test
7.13.1 Test equipment
The test equipment should meet the requirements of GB 2-33.1101, Section 3. 7.10.2 Test steps
The test chamber is in a closed state and the temperature is reduced to 25-3% within 30 min + 5mia before the test. The machine temperature is 16 . Use non-smoke valves (mouth). After the valve is placed under the belt for a period of h, conduct an opening and closing test. The test results should meet the requirements of 6.! 7.11 High temperature resistance test 7.11.# Test equipment The test equipment shall meet the requirements of G23.22C6 Chapter 3. 7.11.2 Test steps Exhaust valve: Put the mouth in the closed state into the whole box. Within 10min ± 2min, the temperature of the test box reaches 55: "27, and the test is repeated for 1h. The smoke exhaust valve (mouth) is placed under normal temperature and then closed. The test results meet the requirements of 6.10. 7.12 Air leakage test under ambient temperature and pressure 7.12.1 Test equipment The test equipment includes gas or system and power verification and good control system. Part of the sensor 1, the flow meter upstream and downstream of the long straight section, the flow meter must be the gas rest measurement position, according to the technical requirements of the demand side, the atmospheric flow meter is installed in the test device needs to be dynamic increase".
From the force transmission male
H network (Japanese
7.12.1.1 Gas flow measurement system
pressure situation please go to the meter
Figure 1 Temperature and air volume test device
, the integrated flow measurement system is composed of pipelines, gas flowmeter and fan system. It is also connected to it: the test and verification is described through the connecting pipeline and the gas flowmeter. The connecting pipeline is made of steel core with a thickness of not less than 16m. The opening should be relatively small with the exhaust valve (mouth). The length is at least twice the diagonal of the opening, and no more than 2
Gas flow meter design error: ±5%! Small error: 15a
GA 4812G04
Atmospheric pressure gauge maximum allowable error: ±2a
Thermometer maximum measurement error ±1.
Draught fan system: including induced draft fan, coarse adjustment and fine adjustment to connect the induced draft fan and the gas flow meter, 7.12.1.2 Pressure measurement control system
The pressure before and after the exhaust valve (outlet) is close to the power transmission end, and the pressure outlet is located on the center line of the surface. The pressure difference before and after the plate is controlled by the corresponding cells and fine adjustment.
7.12.2 Test steps
7.12.2.1 Install the valve (outlet) and make it in a closed state. Then start the small fan, adjust the valve and the pressure gauge to make the gas pressure before and after the exhaust (outlet) 1000Pa ± 100Pa. After stabilization, measure and record the gas pressure at the flow meter and the flow meter value Q. This flow value is the actual system air storage volume. At the same time, measure and record the gas pressure during the test.
7.12.2.2 Remove the seal at the exhaust gas outlet 11) and keep it in a closed state. Perform coarse and fine adjustments to make the gas pressure difference before the exhaust gas outlet still maintain Pu-25PL. After stabilization, measure and record the gas pressure F at the flow meter, gas temperature, and flow value. This flow value is the actual system air storage volume. The whole machine maintains the air volume, and at the same time, the atmospheric pressure after the test is recorded as small H.
7.12.2.3 According to the formula (1> calculate - smoke net (yuan) unit and the full air volume. 0g
- exhaust valve (11) unit area full × or (standard Pu state 1, the unit is cubic meter per square meter per hour (/·): Q exhaust Xiang valve (mouth) of the machine leakage virtual (standard state), the unit is the cubic program per small pair (m/)! - the system evening flow Zhuo (standard push state) single cubic meter per hour (m/: A- exhaust smoke reading (mouth) cross-sectional area single Deng square meter (product) BP
QQ: × 273 = 7 ×: 5: 327
formula Chinese:
exhaust (smoke exhaust tank (standard state) unit is cubic meters per hour) Q - according to 7.122,2 measured smoke exhaust () whole machine air volume, unit is cubic meters per hour (㎡); according to 7.1,2,2 measured smoke two (the whole machine required air volume, the integrated pressure at the flow meter, unit is Ming (: P
- according to 7.12.2.2 measured smoke control network () whole machine south wind flow meter unit is the body pressure at the flow meter, unit is the belt should () - according to 7.12.2.2 measured smoke valve () machine bacteria in the large single for fear (1): 213
Q=Q×23×51 23
1 - system air leakage (standard state) unit is cubic meters per hour): must - according to .12.2.1 measured system end air volume, unit is cubic meters per hour2.7.12 Air leakage test under ambient temperature and pressure
7.12.1 Test equipment
The test equipment includes a gas or system and a force sensor and a good control system. The flow meter is a long section upstream and downstream of the flow meter. The flow meter must be a gas rest measurement position. It is determined according to the technical requirements of the demander. The atmospheric meter is installed in the test equipment and can be moved by the force sensor. tt||H network (Japanese
7.12.1.1 Gas flow measurement system
For the output of pressure conditions
please refer to the design
Figure 1 Temperature and air volume test device
, the integrated flow measurement system is composed of pipelines, gas flowmeters and fan systems. It is also connected to it: the test is carried out through the connecting pipeline and the gas flowmeter. The connecting pipeline bed is not less than 16m thick steel core manufacturing. The opening should be relatively small with the size of the exhaust valve (mouth). The length of the army is less than twice the diagonal of the opening, and the gas flowmeter is no more than 2
The design error of the gas flowmeter is: 5%! The small transmission error is: 15a
GA 4812G04
The maximum allowable error of the barometer: +2a
The maximum error of the thermometer.
Draught system: including the induced draft fan, the coarse adjustment time and the fine adjustment time to connect the induced draft fan with the gas flow meter, 7.12.1.2 Pressure measurement control system
The pressure before and after the exhaust valve (outlet) is close to the power transmission end, and the pressure outlet is located on the center line of the road surface. The pressure difference before and after the piece is controlled by the phase adjustment cell and the fine adjustment.
7.12.2 Test steps
7.12.2.1 The impact valve (outlet) is installed and closed. Then start the small fan, adjust the pressure of the gas before and after the exhaust (inlet) to 1000Pa ± 150P. After stabilization, measure and record the gas pressure at the flowmeter and the flow meter value Q. This flow value is the measured system air storage capacity. At the same time, measure and record the air pressure during the test.
7.12.2.2 Remove the seal at the exhaust gas outlet 11) and keep it in the closed state. Perform coarse and fine adjustments to make the gas pressure difference before the exhaust gas outlet still maintain Pu-25PL. After stabilization, measure and record the gas pressure F at the flowmeter, gas temperature, and flow value. The flow value is the actual initial book non-smoke net two! The whole machine maintains the air volume, and at the same time, the amount of rise is recorded after the test of the atmospheric pressure small H.
7.12.2.3 According to the formula (1> calculate - smoke net (yuan) unit and the full air volume. 0g
-discharge valve (11) unit area full × or (standard Pu state 1, the unit is cubic meters per square meter per hour (/·): Q discharge Xiang valve (mouth) of the machine leakage virtual (standard state), the unit is the cubic program per small pair (m/)! - the system evening flow Zhuo (standard push state) single cubic meter per hour (m/: A-exhaust smoke reading (mouth) cross-sectional area single Deng square meter (product) BP
QQ: ×27 3=7×:5:327
Wherein:
Exhaust (smoke exhaust machine tank (standard state single use cubic meters per hour) Q——According to 7.122,2 measured smoke exhaust () whole machine air volume, single cubic meters per hour (㎡); According to 7,1,2,2 measured smoke two () whole machine required air volume, the integrated pressure at the flow meter, single unit is Ming ([:P
——According to 7.12.2.2 measured smoke control network () whole machine south wind flow meter at the body of the single unit should be () - According to 7.12.2.2 measured smoke valve () machine bacteria when the large single unit is afraid (1): 213
Q=Q×23×51 23
1——System leakage (standard state) unit is cubic water per hour): Must——According to 12.2.1, the actual system end air volume is measured in cubic meters per year and hour2.7.12 Air leakage test under ambient temperature and pressure
7.12.1 Test equipment
The test equipment includes a gas or system and a force sensor and a good control system. The flow meter is a long section upstream and downstream of the flow meter. The flow meter must be a gas rest measurement position. It is determined according to the technical requirements of the demander. The atmospheric meter is installed in the test equipment and can be moved by the force sensor. tt||H network (Japanese
7.12.1.1 Gas flow measurement system
For the output of pressure conditions
please refer to the design
Figure 1 Temperature and air volume test device
, the integrated flow measurement system is composed of pipelines, gas flowmeters and fan systems. It is also connected to it: the test is carried out through the connecting pipeline and the gas flowmeter. The connecting pipeline bed is not less than 16m thick steel core manufacturing. The opening should be relatively small with the size of the exhaust valve (mouth). The length of the army is less than twice the diagonal of the opening, and the gas flowmeter is no more than 2
The design error of the gas flowmeter is: 5%! The small transmission error is: 15a
GA 4812G04
The maximum allowable error of the barometer: +2abzxZ.net
The maximum error of the thermometer.
Draught system: including the induced draft fan, the coarse adjustment time and the fine adjustment time to connect the induced draft fan with the gas flow meter, 7.12.1.2 Pressure measurement control system
The pressure before and after the exhaust valve (outlet) is close to the power transmission end, and the pressure outlet is located on the center line of the road surface. The pressure difference before and after the piece is controlled by the phase adjustment cell and the fine adjustment.
7.12.2 Test steps
7.12.2.1 The impact valve (outlet) is installed and closed. Then start the small fan, adjust the pressure of the gas before and after the exhaust (inlet) to 1000Pa ± 150P. After stabilization, measure and record the gas pressure at the flowmeter and the flow meter value Q. This flow value is the measured system air storage capacity. At the same time, measure and record the air pressure during the test.
7.12.2.2 Remove the seal at the exhaust gas outlet 11) and keep it in the closed state. Perform coarse and fine adjustments to make the gas pressure difference before the exhaust gas outlet still maintain Pu-25PL. After stabilization, measure and record the gas pressure F at the flowmeter, gas temperature, and flow value. The flow value is the actual initial book non-smoke net two! The whole machine maintains the air volume, and at the same time, the amount of rise is recorded after the test of the atmospheric pressure small H.
7.12.2.3 According to the formula (1> calculate - smoke net (yuan) unit and the full air volume. 0g
-discharge valve (11) unit area full × or (standard Pu state 1, the unit is cubic meters per square meter per hour (/·): Q discharge Xiang valve (mouth) of the machine leakage virtual (standard state), the unit is the cubic program per small pair (m/)! - the system evening flow Zhuo (standard push state) single cubic meter per hour (m/: A-exhaust smoke reading (mouth) cross-sectional area single Deng square meter (product) BP
QQ: ×27 3=7×:5:327
Wherein:
Exhaust (smoke exhaust machine tank (standard state single use cubic meters per hour) Q——According to 7.122,2 measured smoke exhaust () whole machine air volume, single cubic meters per hour (㎡); According to 7,1,2,2 measured smoke two (the) whole machine required air volume, the integrated pressure at the flow meter, single unit is Ming ([:P
——According to 7.12.2.2 measured smoke control network () whole machine south wind at the flow meter, single unit is the belt response () - According to 7.12.2.2 measured smoke valve () machine bacteria when the large single unit is afraid (1): 213
Q=Q×23×51 23
1——System leakage (standard state) unit is cubic water per hour): Must——According to 12.2.1, the actual system end air volume is measured in cubic meters per year and hourThe description of the parts certificate shall comply with the provisions of CB/T14446; the description of the parts specified in the packing list and the packing list shall comply with the provisions of G6991. 9.3 Storage Smoke and dust (smoke and dust) should be stored in a well-ventilated place with a relative humidity of less than 85%. When the storage period is more than one year, it should be re-inspected and put back into the warehouse.
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