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Fully-enclosed refrigeration compressor valve plate flutter detection method

A technology for refrigeration compressors and detection methods, which is applied in the testing of mechanical parts, the testing of machine/structural parts, measuring devices, etc., can solve the problems of unsuitable testing, high cost, damage to the compressor structure, etc., and achieve fast detection speed. , low cost, simple effect

Active Publication Date: 2019-08-20
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is also a method of measuring the movement of the valve plate by installing a miniature displacement sensor in the hermetic compressor, but this method is expensive, damages the structure of the compressor, and is not suitable for detection in actual production

Method used

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  • Fully-enclosed refrigeration compressor valve plate flutter detection method
  • Fully-enclosed refrigeration compressor valve plate flutter detection method
  • Fully-enclosed refrigeration compressor valve plate flutter detection method

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Embodiment Construction

[0036] The present invention will be further described below with reference to experimental data and accompanying drawings.

[0037] like figure 1 As shown in the figure, the detection device for valve flap flutter of the fully enclosed refrigeration compressor, the exhaust pipe of the fully enclosed refrigeration compressor 1 under test is connected to the detection device through the exhaust quick connector 2, and the suction of the fully enclosed refrigeration compressor 1 under test is connected to the detection device. The tube is connected to the detection device through the suction quick connector 10 . The exhaust quick connector 2 is connected to the exhaust pressure sensor 3 through the pipeline, the exhaust pressure sensor 3 is connected to the exhaust solenoid valve 4 through the pipeline, and the exhaust solenoid valve 4 is connected to the exhaust pressure regulating valve 5 through the pipeline. The inlet of the gas tank 6 is connected with the exhaust pressure ...

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Abstract

The invention discloses a fully-enclosed refrigeration compressor valve plate flutter detection method, which comprises the following steps of 1) acquisition of compressor pressure signals, 2) preprocessing of signal data, 3) spectral transformation of the signal data, 4) calculation of the maximum multiplier value of pressure pulsation harmonics and 5) evaluation of valve plate flutter. The fully-enclosed refrigeration compressor valve plate flutter detection method has the beneficial effects that: 1) the detection method can directly detect the fully-enclosed compressor valve plate flutter in actual operation; 2) the detection method does not destroy the structure of the fully-enclosed compressor and does not need to be interposed into the compressor for detection; 3) the detection method is simple to implement, the cost is low, and the detection speed is fast; and 4) the detection method is applicable to online detection of making of the fully-enclosed refrigeration compressor.

Description

technical field [0001] The invention relates to the fields of pressure signal measurement, valve plate vibration detection, refrigeration system testing, digital signal time-frequency processing, etc., in particular to a detection method for valve plate flutter of a fully enclosed refrigeration compressor. Background technique [0002] With the development of society and the improvement of people's living standards, the use of refrigeration equipment is becoming more and more extensive, and its power consumption accounts for an increasing proportion of the total social power consumption. In the context of advocating energy conservation and emission reduction, the state has put forward higher standards for the energy consumption of refrigeration equipment. As the core component of the refrigeration system, the energy efficiency improvement of the fully hermetic compressor will become a research focus. The working cycle of the fully enclosed refrigeration compressor is divided...

Claims

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Application Information

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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 金华强顾江萍沈希黄跃进张晓娇
Owner ZHEJIANG UNIV OF TECH
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