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Remotely-controlled wide-range gas leakage rate detection device

A technology of remote control and detection device, applied in the direction of measuring the acceleration and deceleration rate of the fluid, by detecting the appearance of the fluid at the leak point, and using the liquid/vacuum degree for liquid tightness measurement, etc. Hidden dangers, cumbersome operation and other problems, to achieve the effect of improving test safety, preventing backflow, and reducing operation difficulty

Inactive Publication Date: 2014-09-24
BEIJING INST OF AEROSPACE TESTING TECH
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  • Application Information

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Problems solved by technology

This detection method is cumbersome to operate, inefficient, and difficult to control the technical state
At the same time, due to the presence of flammable and explosive liquid hydrogen, high-pressure gas and other dangerous media on site, there are great safety hazards in the operation process

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing description and specific embodiment:

[0015] The invention is mainly composed of camera equipment, data processor 1, unit console 9, measurement and control cable, gas collecting pipe 3, flow meter 5, bubble leak detector 6, solenoid valves (2, 4, 8), and metal pipe 7. Among them, the data processor 1 and the unit console 9 are remote data acquisition devices and unit control devices respectively, realizing remote monitoring and control functions; the camera equipment mainly monitors the air bubble leak detector 6; the air collecting pipe 3, the flow meter 5, and the air bubble leak detector 6. Solenoid valve 4 and metal pipe 7 form a leakage rate detection device. Gas collecting pipe 3 is designed and processed with inlet, exhaust port, and N outlets. Both inlet and exhaust ports are equipped with electromagnetic valves, N "solenoid valve + flow meter", "Solenoid valve + air...

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Abstract

The invention discloses a remotely-controlled wide-range gas leakage rate detection device which is mainly used for gas leakage rate detection in a test process of a low-temperature valve of an oxyhydrogen rocket. The device includes a camera device, a data processor, a unit control console, a measurement and control cable, a gas collecting tube, flow meters, a bubble leakage detector, electromagnetic valves and a metal pipe. The remotely-controlled wide-range gas leakage rate detection device adjusts a measurement range through the unit control console and has a function of a flow meter and a function of bubble leakage detection and leakage rate data are obtained through remote monitoring. The bubble leakage detector is designed according to a pressure balance principle of communicated containers so that frozen accidents caused by back flow of a leakage liquid, which is resulted from low temperature negative pressure of a gas, can be effectively prevented. The device realizes remote control of leakage rate detection of a low temperature test and realizes a man-machine isolation operation mode so that the device is applicable to leakage rate detection of different leakage rate assemblies and capable of improving test security.

Description

technical field [0001] The invention relates to a gas leakage rate detection device, in particular to a remote-controlled wide-range gas leakage rate detection device, which is mainly used for the leakage rate detection during the low-temperature valve test of a hydrogen-oxygen rocket. It belongs to liquid rocket engine test technology. Background technique [0002] Cryogenic valve test is the main means to test the process reliability and working environment adaptability of cryogenic valves. During the flight phase of the rocket, the working conditions are complex and harsh, and the working performance of the valve is subjected to very strict tests. Therefore, it is very necessary to master the various performances of valves through test methods. With the development of launch vehicles, a large number of low-temperature test systems have been built one after another. In order to simulate the complex and changeable low-temperature working conditions on the arrow, the test ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/08G01M3/28
Inventor 王丽婧赵耀中葛绍岭梁怀喜尹奇志王鹍郑然王小飞刘滑董少斐王永超
Owner BEIJING INST OF AEROSPACE TESTING TECH
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