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Filling structure for airtight test

A technology of air tightness test and filling body, which is applied in the direction of using liquid/vacuum degree for liquid tightness measurement, etc., can solve the problem that the filling body is not easy to be filled, and achieve the effect of convenient filling, not easy to damage, and improving the pressure bearing capacity.

Pending Publication Date: 2022-03-08
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a filling structure for an airtight test to solve the technical problem that the filling body is not easy to fill due to the integrated design of the filling body in the prior art

Method used

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  • Filling structure for airtight test
  • Filling structure for airtight test
  • Filling structure for airtight test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The filling body 100 used in the gas sealing test in the prior art is a large-scale tooling designed in one piece, and its shape is only suitable for testing tanks of corresponding shapes. If it is necessary to perform leak detection on other shells, it needs to be redesigned. The filling body 100 adapted to the casing has high cost, and the versatility of the filling body 100 is poor, and the mass of the large-scale tooling is relatively large, making it difficult to fill. The filling structure for the airtight test provided by the present invention divides and miniaturizes the filling body 100, and each filling body 100 can be magnetically attracted to each other, and a plurality of filling bodies 100 are magnetically attracted to form a filling group. Blocks, each packing block is contained by the net bag 7, and connected in series by the connecting hinge 8, so as to be convenient to fill in the airtight cavity 110 to be tested as a filler, so as to fully occupy the i...

Embodiment 2

[0061] The main difference between it and Embodiment 1 is that in Embodiment 1, the weight reducing cavity 21 is hollow. In this embodiment, when the strength of the material forming the pressure-resistant casing 2 is not high enough, such as Figure 5 As shown, the lightweight filler 3 needs to be filled in the weight-reducing cavity 21. Specifically, the lightweight filler can be ceramsite, mineral wool, asbestos, polyester foam, etc., and the lightweight filler 3 is filled with the pressure-resistant shell 2. The cavity 21 is heavy to increase the overall strength of the filling body 100 .

Embodiment 3

[0063] The main difference between it and the embodiment 2 is that in the embodiment 2, the light weight filler 3 is filled in the weight reduction cavity 21 to increase the strength of the filler body 100 . In this example, if Image 6 As shown, a supporting frame 4 is provided in the weight-reducing cavity 21 of the pressure-resistant housing 2 , and the supporting frame 4 is supported and connected with the pressure-resistant housing 2 in the weight-reducing cavity 21 to increase the overall strength of the filling body 100 .

[0064] In actual implementation, the pressure-resistant shell 2 can be arranged in half. At this time, the weight-reducing cavity 21 is also set in half in the two-and-a-half pressure-resistant shell 2, and the support frame 4 is first filled into the two-and-a-half pressure-resistant shell. 2 in the weight-reducing cavity 21 of one of them, and then the two and a half pressure-resistant shells 2 are fastened and spliced ​​together, so that the suppo...

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Abstract

The invention relates to a filling structure for an airtight test, and the structure comprises at least two net bags, each net bag is filled with a plurality of filling bodies, and the net bags are connected in series through connecting hinges to form a string so as to form a filler, and the filler is used for being filled in an airtight cavity to be tested. When in use, the net bags are used for containing the filling bodies, so that more filling bodies can occupy a larger space in the airtight cavity to be detected, the net bags containing the filling bodies are connected in series into a string through the connecting structures to form the filler, and one end of the string of the net bags can be pulled up to form the airtight cavity to be detected. Therefore, the other string bags in the same string are sequentially filled into the airtight cavity to be tested, the filling is convenient, and the filling efficiency of filling the filler into the airtight cavity to be tested is improved.

Description

technical field [0001] The invention relates to a filling structure for an airtight test. Background technique [0002] According to the relevant standards of the high-voltage electrical appliance industry, the shells of high-voltage electrical appliances must pass the gas sealing test before leaving the factory to verify the quality of the products. At present, the more common gas sealing test methods are generally divided into three types, namely, vacuum leak detection, leak detection with leak detector, and infrared imaging leak detection. For vacuum leak detection, the air inside the shell needs to be evacuated. Whether the shell continues to maintain a vacuum state; for leak detection of leak detectors, it is necessary to fill the inside of the shell with tracer gas, so that the internal pressure of the shell reaches a certain level, to see if there is tracer gas leaking; for infrared imaging leak detection Generally speaking, it is necessary to fill the casing with su...

Claims

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Application Information

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IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 贺永明林麟魏建巍王向克陆静陈国营贾彩玲陈会龙王刚刘龙白玮王汉瑶段方维杨滢璇
Owner PINGGAO GRP
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