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Inner leak detection device of heat exchanger

A technology of heat exchanger and detection device, which is applied in the direction of detecting the appearance of fluid at the leakage point and using liquid/vacuum degree for liquid tightness measurement, etc., which can solve the problems of inconvenient operation, low leak detection efficiency and complex structure, etc. Achieve the effect of convenient use, simple structure and high leak detection efficiency

Active Publication Date: 2011-01-19
ULVAC ORIENT CHENGDU
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AI Technical Summary

Problems solved by technology

[0002] The existing helium leak detection device for heat exchanger internal leakage has a complex structure, and it needs to provide a vacuum environment for leak detection, and the device cannot automatically judge and display the detection results
Inconvenient operation and low leak detection efficiency

Method used

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  • Inner leak detection device of heat exchanger
  • Inner leak detection device of heat exchanger
  • Inner leak detection device of heat exchanger

Examples

Experimental program
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Embodiment Construction

[0016] In the heat exchanger internal leakage detection device of the present invention, the helium mass spectrometer leak detector 1 is connected to the IN port of the heat exchanger 2 through the first pipeline 13, and the helium-filled tube 3 and the nitrogen-filled tube 4 are respectively connected to the two ends of the heat exchanger 2. OUT port connection, the second solenoid valve 5, the first air pressure gauge 7, and the first pressure reducing valve 9 are located on the helium filling tube 3, and the third electromagnetic valve 6, the second air pressure gauge 8, and the second pressure reducing valve 10 are located on the nitrogen filling pipe. Tube 4 on. The two OUT ports are connected in parallel, and communicate with the IN port through pipes.

[0017] The electric control system cabinet 12 of the present invention is installed on the top of the frame, on the left side of the electric control system cabinet, a manual selection switch, a start switch, and an emer...

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Abstract

The invention relates to an inner leak detection device of a heat exchanger and solves the problems of the existing device, namely complicated structure, inconvenient operation and low leak detection efficiency. In the device, a helium mass spectrum leak detector (1) on the rack is connected with a heat exchanger inlet IN through a first pipe (13); the first pipe is provided with a first electromagnetic valve (11); the heat exchanger first outlet is connected with a helium source through a helium-filling pipe (3); the helium-filling pipe (3) is provided with a second electromagnetic valve (5), a first barometer (7) and a first pressure-reducing valve (9); the heat exchanger second outlet is connected with a nitrogen source through a nitrogen-filling pipe (4); the nitrogen-filling pipe (4) is provided with a third electromagnetic valve (6), a second barometer (8) and a second pressure-reducing valve (10); and a programmable controller is connected with the helium mass spectrum leak detector, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and a display.

Description

Technical field: [0001] The invention relates to a device for detecting leakage holes of workpieces with a helium mass spectrometer leak detector. In particular it relates to devices for detecting internal leaks in heat exchangers. Background technique: [0002] The existing helium leak detection device for internal heat exchanger has a complex structure, and a vacuum environment for leak detection needs to be provided, and the device cannot automatically judge and display the detection results. Inconvenient operation and low leak detection efficiency. Invention content: [0003] The object of the present invention is to provide a heat exchanger internal leakage detection device with simple structure, convenient operation, high leak detection efficiency, and automatic judgment and display of detection results. [0004] The present invention is achieved like this: [0005] In the heat exchanger internal leakage detection device of the present invention, the helium mass s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/20
Inventor 张果李健詹成昆张松林张君陈代洪
Owner ULVAC ORIENT CHENGDU
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