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Establishment method of simple testing scheme for compressor refrigerating capacity equivalent to national standard requirements

An equivalent testing, compressor technology, applied in compressors, refrigerators, refrigeration and liquefaction, etc., can solve the problems of complexity, long testing time, and unfavorable quality control of compressor products.

Inactive Publication Date: 2006-09-06
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compressor cooling capacity test facilities are complicated, and the test takes a long time. Out of helplessness, the sampling test probability of compressor product cooling capacity is usually designed to be extremely low. Obviously, this is not good for the quality control of compressor products.

Method used

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  • Establishment method of simple testing scheme for compressor refrigerating capacity equivalent to national standard requirements
  • Establishment method of simple testing scheme for compressor refrigerating capacity equivalent to national standard requirements

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Embodiment Construction

[0011] figure 1 The test embodiment of the present invention is illustrated: quite simple, the tested compressor (2) works under the open circuit of the suction pipe (1) and the discharge pipe (3) in the open circuit state, reflecting the open circuit work of its compression exhaust capacity The maximum limit pressure of the state is displayed by the pressure gauge (4), and its high and low pressure compression ratio (closely related to the cooling capacity) is the value P (in atmospheric pressure) displayed by the pressure gauge (4). When P is greater than or equal to the critical pressure value (P 0 ), the refrigerating capacity of the tested compressor (2) is qualified, when P is less than the critical pressure value (P 0 ), the compressor under test (2) is unqualified.

[0012] figure 2 The key of the present invention is illustrated: five compressors (three qualified and two unqualified) of the cooling capacity Q through the national standard implementation plan test ...

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Abstract

The present invention is the establishing method of simple measurement scheme of compressor refrigerating amount equivalent to the requirement in relevant Chinese standard. The method is established via the key steps of measuring and drawing 'Q-P' refrigerating amount vs compression ratio curve coordinate graph and determining the qualified clinical pressure value P0 according to qualified clinical refrigerating amount value Q0 specified in Chinese standard. That is, the easily measured highest compressor breaking pressure P is used to characterize complicated compressor refrigerating amount.

Description

Technical field: [0001] The invention relates to the thermal engineering testing technology of the refrigeration capacity of a compressor used for refrigeration. Background technique: [0002] For the compressor used in the refrigeration system, an important test item stipulated in the national standard is: the cooling capacity test of the compressor, see the national standard GB9098-88 (fully enclosed motor for refrigerator - compressor) "4.2" Festival. Compressor cooling capacity test facilities are complicated, and the test takes a long time. Out of helplessness, the probability of sampling the cooling capacity of compressor products is usually designed to be extremely low. Obviously, this is not good for the quality control of compressor products. Invention content: [0003] Purpose of the present invention: propose a kind of refrigerating capacity simple test method that can have equivalence relationship with the implementation scheme of the compressor refrigerating ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/00G01K17/00F25B9/00
Inventor 梁嘉麟
Owner CHINA JILIANG UNIV