A device and method for detecting air leakage and fire resistance performance of a fire protection valve
A technology of fire resistance and air leakage, which is used in measuring devices, measuring the acceleration and deceleration rates of fluids, and using liquid/vacuum for liquid tightness measurement. Convenience and other issues, to achieve the effect of less occupancy, high work efficiency and convenient operation
Inactive Publication Date: 2017-01-04
SHANDONG INST FOR PROD QUALITY INSPECTION
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[0013] At present, the above two tests are carried out separately with a set of devices, and the detection efficiency is very low, the detection device is not easy to operate, and it takes up a lot of personnel
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[0044] Such as figure 1 As shown, the device for detecting the air leakage and fire resistance performance of the fire protection valve includes a PLC controller, a fire resistance test furnace 1, a flow collection device, a temperature collection device, a pressure collection device and a mechanical moving part that can move on the ground 27 .
[0045] The refractory test furnace 1 is provided with a furnace mouth 42, and a plurality of gas nozzles are arranged on the refractory test furnace 1, and the plurality of gas nozzles include a side gas nozzle 2 and a positive gas nozzle 3; device.
[0046] The bottom of the refractory test furnace 1 is provided with an air supply port 48 connected to the refractory test furnace blower, and the top of the refractory test furnace 1 is provided with a waste gas outlet 4 . A connecting plate 5 connects the first connecting pipe 7 with the furnace mouth 42 of the refractory test furnace. The first connecting pipe 7 is provided with five...
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The invention discloses a device and method for detecting air leakage and fireproof performance of a fireproof valve. The device comprises a fireproof test furnace. A first connecting pipe is connected with a furnace mouth of the fireproof test furnace and provided with a thermocouple. A fireproof valve test piece is connected between the first connecting pipe and a second connecting pipe. A gas flow meter and a pressure balancer are installed on the second connecting pipe. The second connecting pipe is sequentially connected with a gas flow adjustor, a connecting cooling device and a third connecting pipe backwards. A test piece pressure balancer, a pressure difference guide-out device, a pipeline thermocouple and a flow balancer are sequentially installed on the third connecting pipe. The third connecting pipe is connected with a high-temperature-resistant flexible connecting pipe and then connected with a fourth connecting pipe, an electric adjusting valve and a fifth connecting pipe backwards. The fifth connecting pipe is connected with an air wing cover. The air wing cover and an induced draft fan are connected into a whole through a connecting sheath. The induced draft fan, the electric adjusting valve and the cooling device are respectively installed on a trolley. According to the device and method, air leakage and fireproof performance of the fireproof valve can be detected, operation is convenient, fewer workers are needed, and work efficiency is high.
Description
technical field [0001] The invention relates to a device and a method for detecting fire-proof valves, especially fire-proof valves in building ventilation and smoke exhaust systems. Background technique [0002] The fire protection valves of building ventilation and smoke exhaust systems should be inspected for quality, including two inspections: one is the air leakage detection at ambient temperature, and the other is the fire resistance performance inspection. [0003] In the currently implemented GB15930-2007: [0004] 1. Air leakage detection under ambient temperature: [0005] (1) At the ambient temperature, keep a gas static pressure difference of 300Pa±15Pa on both sides of the fire damper or smoke fire damper blade, and the air leakage per unit area (standard state) should not be greater than 500m 3 / (m 2 h); [0006] (2) At the ambient temperature, keep a gas static pressure difference of 1000Pa±15Pa on both sides of the fire damper or the blade of the smoke ex...
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IPC IPC(8): G01M3/28G01M99/00
Inventor 周杨李义民万修芹李红菊肖胜鑫朱瑞艳
Owner SHANDONG INST FOR PROD QUALITY INSPECTION