Floating air bag leak test device
A test device and air technology, applied in the direction of using liquid/vacuum for liquid tightness measurement, etc., can solve the problems of misjudgment of test results, temperature control, large temperature influence, etc., and achieve the effect of rapid change and uniform temperature field
Inactive Publication Date: 2015-03-25
HEFEI UNIV OF TECH +2
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Problems solved by technology
[0003] In the prior art, the leak detection of the floating air bag is carried out indoors in a large space, and the direct pressure leak detection method is generally used for leak detection. This leak detection method cannot control the temperature, and the temperature has a great influence on this leak detection The influence of the method is large, and sometimes the influence of temperature exceeds the influence of the leakage itself, resulting in misjudgment of the test results
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[0017] see figure 1 and figure 2 , in the present embodiment, the floating airbag leak detection test device is independently separated into each room in space, including a temperature control room 3 and an environment control room 4 adjacent to each other on the left and right, and there is an air supply room 9 in the The top of the temperature control chamber 3 and the environment control chamber 4.
[0018] On the top plate of the temperature control chamber 3, an air supply hole 13 communicating with the air supply chamber 9 is set; Space separation is formed, and as a rectifying device to make the air supply uniform, a return air hole 14 communicating with the temperature control chamber 3 is provided at the lower part of the side wall of the environment control chamber 4 .
[0019] In this embodiment, a heater 5 and a refrigerating unit 6 are respectively arranged in the temperature control chamber 3, and a speed-adjustable centrifugal fan 10 is arranged, and the cent...
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The invention discloses a floating air bag leak test device which is characterized in that the space is partitioned into chambers separately, the chambers comprise a temperature control chamber and an environment control chamber, and an air supply chamber is arranged at the top of the temperature control chamber and the top of the environment control chamber; a heating device and a refrigerating unit are arranged in the temperature control chamber, a speed-adjustable centrifugal fan is further arranged in the temperature control chamber, and a circulation airflow channel is formed through the centrifugal fan, wherein airflow from the temperature controller sequentially flows through the air supply chamber and the environment control chamber and then flows back to the temperature control chamber; a vacuum pump is arranged and is used for controlling the environment control chamber to be of the set air pressure. By means of the floating air bag leak test device, the temperature environments of floating air bags at different moments in different atmospheres can be simulated, and the detection result is made to be quicker and more precise.
Description
technical field [0001] The invention relates to testing equipment for a floating air bag, more specifically to a leak detection test device for a floating air bag, which is used for leak detection of the floating air bag in a simulated space environment. Background technique [0002] As a kind of aircraft that relies on buoyancy to lift into the air, aerostats have unique advantages such as low cost, long time in the air at a fixed point, large load capacity, low noise, low energy consumption, good safety, and high cost-effectiveness. , remote sensing communication, tourism, emergency rescue and many other civilian fields have a wide range of uses and good prospects. The buoyancy of the aerostat comes from the light gas such as helium in the floating air bag. Air tightness is an important technical index of the air bag. It is not only related to the safety and emptying time of the air bag, but also affects its Economical to use. Loopholes on the surface of the airbag will ...
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IPC IPC(8): G01M3/02
Inventor 朱仁胜李金明周隐张月赵韩沈健孙程刘四洋
Owner HEFEI UNIV OF TECH