Product profiled surface air impermeability detection device

A technology of air tightness detection and portable device, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., which can solve problems such as undiscovered, and achieve easy operation, low loss, and structure compact effect

Pending Publication Date: 2018-03-13
LIAOSHEN IND GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no portable equipment suitable for testing the air tightness of the special-shaped surface of the finished product under special working conditions at home and abroad.

Method used

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  • Product profiled surface air impermeability detection device
  • Product profiled surface air impermeability detection device
  • Product profiled surface air impermeability detection device

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The product to be tested in this embodiment is a cylindrical upper and lower split body structure, the measured part is the junction of the upper and lower split body, the shape of the tested part is circular, and the volume is 0.1m 3 .

[0039] like figure 1 As shown, a portable device for detecting the air tightness of a special-shaped surface of a product mainly includes a connection chamber 1, a vacuum chamber 2, a vacuum pump 4, a control device 6 and a body frame 3, and related vacuum gauges for measuring vacuum pressure, used for connecting Pipelines in each chamber and valves for opening and closing the pipelines.

[0040] The connection cavity 1 is used to connect the measured parts of the product to be tested and build a closed measured space together with the measured parts of the product to be tested. The structure of the connection cavity 1 is designed as a flat cylindrical structure that can be split in half and has an inner hole. The inner diameter size...

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PUM

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Abstract

The invention relates to a product profiled surface air impermeability detection device and belongs to the field of air impermeability detection. The product profiled surface air impermeability detection device includes a connection chamber (1), a vacuum chamber (2), a vacuum pump (4), a control device (6) and a body frame (3). The connection chamber includes a sealed chamber (10), a working chamber (11), and a fixing clamp (12). The vacuum chamber includes a vacuum room (26), a measurement room (34), a monitoring room (24) that are provided with respective vacuum gauges. Values are provided in order to controls the on-off states of paths between respective rooms and the vacuum pump. The control device realizes a detection procedure by reading a vacuum gauge signal and controlling the on-off state of the valve. The vacuum pump provides a required vacuum environment. The vacuum chamber, the vacuum pump, the control device, the valves, and pipelines are placed in the body frame. The connection chamber is placed outside the body frame, tightly sleeves the to-be-tested position of the product, and is connected to the vacuum chamber via a vacuum flange. Compared with the prior art, theproduct profiled surface air impermeability detection device is compact in structure, easy to operate, and high in detection efficiency, and can detect the air impermeability of the product under thecondition where full-closed detection is difficult.

Description

technical field [0001] The invention relates to air tightness testing equipment, in particular to a portable equipment for testing the air tightness of special-shaped surfaces of products, which is used for testing the air tightness of finished product special-shaped surfaces, and belongs to the technical field of air tightness testing. Background technique [0002] During the storage of finished products, the sealing performance of the outer packaging of the product directly affects the reliability of the long-term storage of the product. In order to prevent the failure of the product due to air leakage from the outer packaging, product integrity (air tightness) testing is widely used in production. However, due to the limitation of technical conditions, the current integrity testing of fully-sealed products mostly uses fully-enclosed testing equipment to test the air-tightness of products, or only conducts the air-tightness testing of semi-finished product packaging, which...

Claims

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 张之明胡延臣崔志军庞丹徐鸿羽王皓李松成陈永恒郑华波
Owner LIAOSHEN IND GRP
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