Concentration measuring device of fire extinguishing agent concentration measuring system
A technology of concentration measurement and fire extinguishing agent, applied in the direction of analyzing materials, instruments, etc., can solve the problems of low measurement accuracy and complex structure, and achieve the effect of improving measurement accuracy, convenient operation and simple structure
Inactive Publication Date: 2016-03-23
CHINA HELICOPTER RES & DEV INST
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Problems solved by technology
[0003] The object of the present invention is to provide a concentration measurement device of a fire extinguishing agent concentration measurement system to solve the problems of existing concentration measurement devices with complex structure, low measurement accuracy, and online real-time measurement of fire extinguishing agent concentration
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[0039] Such as Figure 1 to Figure 6 As shown, the present invention provides a concentration measurement device of a fire extinguishing agent concentration measurement system, which is used to measure the concentration of predetermined measurement points (multiple) on the power cabin; the concentration measurement device includes a heating block 1, a pressure measuring block 2, The first end cover 3 , the second end cover 4 , the first pressure measuring nozzle 5 , the second pressure measuring nozzle 6 , differential pressure sensor, heating element and other components.
[0040] The heating block 1 includes an inlet port, an outlet port and a first through hole 11 .
[0041] The pressure measuring block 2 includes an inlet end, an outlet end and a second through hole 21. The inlet of the second through hole 21 is located on the inlet end face of the pressure measuring block 2, and the outlet of the second through hole 21 is located on the outlet end of the pressure measurin...
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The invention relates to the design of a fire extinguishing agent concentration measuring system, in particular to a concentration measuring device of a fire extinguishing agent concentration measuring system. The problems that an existing concentration measuring device is complex in structure and low in measuring precision and cannot measure the fire extinguishing agent concentration on line in real time are solved. The concentration measuring device of the fire extinguishing agent concentration measuring system is used for measuring the concentration of a preset measuring point on an engine compartment and comprises a heating block, a pressure measuring block, a first end cover, a second end cover, a first pressure measuring nozzle, a second pressure measuring nozzle, a pressure difference sensor and a heating piece. In the concentration measuring device of the fire extinguishing agent concentration measuring system, airflow flows into the preset measuring point on the engine compartment can be heated in a first through hole in the heating block, the heated airflow enters a second through hole in the pressure measuring block, the pressure difference of the two ends of the second through hole is detected through the pressure difference sensor, and finally the fire extinguishing agent concentration of measured gas is obtained. Due to the fact that the structure is simple and operation is convenient, the measuring precision can be effectively improved.
Description
technical field [0001] The invention relates to the design of a fire extinguishing agent concentration measurement system, especially a concentration measurement device for the fire extinguishing agent concentration measurement system; Background technique [0002] According to the test requirements of the aircraft power cabin fire extinguishing system, a special fire extinguishing agent concentration measurement system is required to accurately measure the fire extinguishing agent concentration at multiple measurement points in the power cabin during the test to determine the fire extinguishing effect of the fire extinguishing system. When the airflow (air or the mixture of air and fire extinguishing agent) flowing out of the corresponding measurement point in the power cabin flows through the special fire extinguishing agent concentration measurement system, the concentration measurement device in the measurement system can detect the flow of airflow within a predetermined ...
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Login to View More IPC IPC(8): G01N7/16
CPCG01N7/16
Inventor 宋志兵郭芳李海涛黄杰闵兴明邹建军吴燕燕谭文诺杨小龙罗铁苟
Owner CHINA HELICOPTER RES & DEV INST