CN100344875C - Method for judging whether key characteristics of a compressor are qualified or not by exhaust pressure comparison - Google Patents
Method for judging whether key characteristics of a compressor are qualified or not by exhaust pressure comparison Download PDFInfo
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- CN100344875C CN100344875C CNB2005100494587A CN200510049458A CN100344875C CN 100344875 C CN100344875 C CN 100344875C CN B2005100494587 A CNB2005100494587 A CN B2005100494587A CN 200510049458 A CN200510049458 A CN 200510049458A CN 100344875 C CN100344875 C CN 100344875C
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Abstract
The present invention relates to a method for judging whether the key characteristics of a compressor are qualified or not by exhaust pressure comparison, which is characterized in that: A, a pressure difference comparator (2) in which a piston (3) is arranged is used as a test instrument and equipment; B, the method comprises the test and judging steps: firstly, an exhaust pipe (4) of a standard compressor (5) and an exhaust pipe (9) of a compressor (8) to be tested are respectively connected to both ends of a pressure difference display (2) by air delivery pipes (1), and an air inlet pipe (6) of the standard compressor (5) and an air inlet pipe (7) of the compressor to be tested (8) are exposed in air space; afterwards, the standard compressor (5) and the compressor (8) to be tested are simultaneously electrified and started; finally, the rest position of the piston (3) is observed so that whether the working compression ratio of the compressor (8) to be tested is qualified or not is judged. The project can establish an equivalent relation with Chinese standards so as to create conditions for a quality test project for reflecting the key characteristics of a compressor to become the necessary test project of each compressor product.
Description
Technical field:
The present invention relates to compressor characteristics quality inspection technology.
Background technique:
Compressor is modal mechanical classification, and its work compression ratio is high more, and so, its compression property is just good more.Yet, whether the quality that the method that the actual conditions that the service behaviour detection of compressor was often adopted 1: 1 detects is differentiated it is qualified, for example: the compressor of refrigeration purposes, be the refrigeration system that it is placed actual applying working condition, by the test result of its refrigerating capacity being judged whether it is up-to-standard.Formulated the compressor of refrigerator purposes in the GB GB9098-88 joint and tested the standard of judging that whether qualified it is by it forms refrigerating capacity in refrigeration system size.
If whether the compressor of producing in factory mass all adopts national standard method to differentiate compressor as its essential items for inspection embodiment qualified, obviously is difficult.If can adopt with GB GB9098-88 in the embodiment formulated the simple and direct embodiment of equivalent relation is arranged, it is examined the project implementation scheme as compressor function character, so, the quality inspection project of reflection compressor cooling flow characteristic has been created condition with regard to the essential items for inspection that can be used as every compressor.
Summary of the invention:
The present invention's purpose: propose a kind of simple and direct embodiment that can reflect key characteristic of compressor quality inspection project, for its essential items for inspection that become every compressor create conditions.
In order to realize goal of the invention, intend adopting following technology:
The two compresses the comparison of dynamics to allow its work compression ratio or refrigerating capacity just reach relevant GB required standard compressor and tested compressor, ordered about static position, back by its two end pressure at last by the piston in the middle of the pressure reduction comparator, just can judge fast whether tested compressor is qualified.
Characteristics of the present invention: because the present invention can require to set up equivalent relation with GB, this just make it possible to reflect key characteristic of compressor the quality inspection project essential items for inspection that can become every compressor product created condition.
Description of drawings:
Figure has illustrated one embodiment of the present of invention.
1: pneumatic tube (soft); 2: the pressure reduction comparator; 3: piston; 4: mark machine outlet pipe; 5: the standard compression machine; 6: mark machine suction tude; 7: tested machine suction tude; 8: tested compressor; 9: tested machine outlet pipe.
Embodiment:
The test instrument equipment that the present invention adopts: inside is provided with the pressure reduction comparator 2 of piston 3, and pressure reduction comparator 2 preferably adopts transparent toughened glass to make, and is convenient to observe the wherein last position of rest of piston 3.
Test determining step of the present invention: at first, the tested machine outlet pipe 9 of the mark machine outlet pipe 4 of standard compression machine 5 and tested compressor 8 is connected the two ends of pressure reduction comparator 2 respectively with pneumatic tube 1, allows mark machine suction tude 6 and tested machine suction tude 7 be exposed to airspace; Then, energising starts standard compression machine 5 and tested compressor 8 simultaneously; Observe the position of rest of piston 3 at last, can judge whether the work compression ratio of tested compressor 8 or refrigerating capacity reach requirement.---the center line (middle) of pressure reduction comparator 2 is gone up or the left side of deflection center line if piston 3 is positioned at.Then: tested compressor 8 is qualified, and promptly its high workload compression ratio or refrigerating capacity are equal to or better than standard compression machine 5; If piston 3 is positioned at the center line right side of pressure reduction comparator 2, then: tested compressor 8 is defective, and promptly its high workload compression ratio or refrigerating capacity are less than standard compression machine 5.
Obviously, above-mentioned standard compression machine 5 is to test under the condition that meets relevant GB requirement fully, no matter how various and complicated the test condition that relevant GB requires is, but, these requirements change ten thousand times without leaving the original aim or stand, promptly all with the compressed capability of compressor, or the compression dynamics is relevant, and pressure reduction comparator 2 just in time can reflect the compressed capability of two compressors or the size of compression dynamics compares, if wherein a compressor is just in time qualified standard compression machine 5, so, another tested compressor 8 just can be by comparing with it, and whether the key performance that determines it is qualified.
Claims (1)
1. relatively judge the method that whether qualified key characteristic of compressor is by exhaust pressure for one kind, it is characterized in that:
A. the test instrument equipment of Cai Yonging:
Inside is provided with the pressure reduction comparator (2) of piston (3), and this pressure reduction comparator (2) adopts transparent toughened glass to make;
B. test determining step:
A, use pneumatic tube (1) to be connected the two ends of pressure reduction comparator (2) respectively the mark machine outlet pipe (4) of standard compression machine (5) and the tested machine outlet pipe (9) of tested compressor (8), allow mark machine suction tude (6) and tested machine suction tude (7) be exposed to airspace;
B, energising simultaneously start standard compression machine (5) and tested compressor (8);
C, the position of rest of observing piston (3) can judge whether the work compression ratio of tested compressor (8) or refrigerating capacity be qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100494587A CN100344875C (en) | 2005-03-25 | 2005-03-25 | Method for judging whether key characteristics of a compressor are qualified or not by exhaust pressure comparison |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100494587A CN100344875C (en) | 2005-03-25 | 2005-03-25 | Method for judging whether key characteristics of a compressor are qualified or not by exhaust pressure comparison |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664370A CN1664370A (en) | 2005-09-07 |
| CN100344875C true CN100344875C (en) | 2007-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100494587A Expired - Fee Related CN100344875C (en) | 2005-03-25 | 2005-03-25 | Method for judging whether key characteristics of a compressor are qualified or not by exhaust pressure comparison |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100344875C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498298B (en) * | 2009-02-19 | 2012-05-23 | 浙江工业大学 | Apparatus and method for measuring small-sized cold compressor oil circulation amount |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942375A (en) * | 1974-10-11 | 1976-03-09 | Shepherd J D | Method and means for testing hydraulic pump |
| JPS578384A (en) * | 1980-06-16 | 1982-01-16 | Kawasaki Steel Corp | Pump performance measuring method |
| JP2002364553A (en) * | 2001-05-31 | 2002-12-18 | Technological Research Association Of Super Marine Gas Turbine | Testing device for compressor performance |
| CN1410749A (en) * | 2002-11-29 | 2003-04-16 | 东南大学 | Refrigeration compressor performance low energy consumption determination device |
-
2005
- 2005-03-25 CN CNB2005100494587A patent/CN100344875C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942375A (en) * | 1974-10-11 | 1976-03-09 | Shepherd J D | Method and means for testing hydraulic pump |
| JPS578384A (en) * | 1980-06-16 | 1982-01-16 | Kawasaki Steel Corp | Pump performance measuring method |
| JP2002364553A (en) * | 2001-05-31 | 2002-12-18 | Technological Research Association Of Super Marine Gas Turbine | Testing device for compressor performance |
| CN1410749A (en) * | 2002-11-29 | 2003-04-16 | 东南大学 | Refrigeration compressor performance low energy consumption determination device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1664370A (en) | 2005-09-07 |
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