Method for measuring leakage of propylene

An acrylic and test source technology, applied in the field of automatic installation of oil rails, can solve the problems of high energy consumption and low detection accuracy.

Inactive Publication Date: 2013-04-17
SHANGHAI LIANNAN AUTOMOTIVE ACCESSORIES
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of low accuracy and high energy consumption of airtight detection using traditional technologies, such as air helium, the present

Method used

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  • Method for measuring leakage of propylene
  • Method for measuring leakage of propylene

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Embodiment Construction

[0006] The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0007] 1. The test principle is as follows: figure 1 Shown: Test cycle process: Manually put the workpiece under test into the sealed cover, connect the ATEQT520 measuring instrument to the acrylic gas pipe, start the button, and the cycle starts—waiting time—inflate—stabilize—test—exhaust Air - end of cycle

[0008] - Use C3H6 (1% concentration) for gas method test;

[0009] — Using a special valve group, it can guarantee a service life of more than 5 million times without leakage;

[0010] — Using a special sensitive olfactory sensor can ensure the accuracy and stability of the test, and can replace the helium test within a certain range;

[0011] — Time resolution: 1 / 10 second (inflate, stabilize, test, etc.);

[0012] — Display and monitor test pressure;

[0013] — There are input / output interfaces that can be connected with PLC signals for automat...

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Abstract

The invention provides a method for taking propylene for a commercial automatically-mounted fuel distributing pipe as a driving source, and conducting online airtight leakage amount detection by manufacturers. According to the method, the measurement is conducted through a smell sense sensor and an ATEQT520 measuring instrument by adopting the propylene as a driving source. The measuring instrument is used for determining the leakage upper limit and judging whether the qualification is achieved, the smell sense sensor is used for detecting a detected part in a sealing cover in real time. In the whole process, the leakage amount is displayed on a panel of a data collector in a manner of a two-dimensional curve so as to facilitate observation of an operator and conduct judgment on the maximum leakage amount. The testing pressure is 500KPa and adjustable; and the leakage amount standard is 0.00138Ncc/s. The equipment adopts a universal design, clamps can be changed randomly so as to detect different parts, and the test beat is 60-65 seconds per piece. The method has the advantages of being low in energy consumption, high in precision, small in noise, small in volume and pollution-free. Therefore, whether the leakage amount of the fuel pipe is qualified in working can be accurately judged, and the accuracy rate can achieve 100%.

Description

technical field [0001] The invention relates to the field of on-line detection by using acrylic as a test source for an automatic installation oil rail and using the leak detection principle of the equipment. Background technique [0002] There are many types of airtight detection, such as air, helium, manual, and automatic. However, in the manufacturing industry, propylene is used as the test source automatically on-line. It has not been promoted in the manufacturing industry. It has low energy consumption and high precision. , Low noise, small size and no pollution. Therefore, in the work, it can accurately judge whether the leakage of the fuel pipe is qualified, and the accuracy rate reaches 100%. In addition, the differential pressure method based on the principle of leak detection is used, and the low accuracy causes an increase in the misjudgment of the leakage amount of the product. The invention provides a method for a manufacturer to automatically install a fuel d...

Claims

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Application Information

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IPC IPC(8): G01M3/02
Inventor 陈陆荣
Owner SHANGHAI LIANNAN AUTOMOTIVE ACCESSORIES
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