CN100419403C - Compressor refrigeration quantity equivalent detecting method the same as state standard compression ratio and flow - Google Patents
Compressor refrigeration quantity equivalent detecting method the same as state standard compression ratio and flow Download PDFInfo
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- CN100419403C CN100419403C CNB2005100507962A CN200510050796A CN100419403C CN 100419403 C CN100419403 C CN 100419403C CN B2005100507962 A CNB2005100507962 A CN B2005100507962A CN 200510050796 A CN200510050796 A CN 200510050796A CN 100419403 C CN100419403 C CN 100419403C
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Abstract
Characters of the method are that (1) test facilities include air source part A in low pressure, and choked flow part B in high pressure, and air gage connected to choked flow part B; (2) test steps include: connecting compressor to be tested between air source part A and choked flow part B in series; after electrifying and starting up compressor to be tested, obtaining data P and Q form second pressure display, and air gage respectively; if P and Q are equal to or larger than critical data P0 and Q0 respectively, then test item of refrigerating capacity of compressor to be tested is acceptable; otherwise, it is not acceptable. The critical data P0 (standard condensing pressure based on standard evaporating pressure P* as benchmark) and Q0 (standard flux) are obtained by using the test facilities to test a standard compressor.
Description
Technical field:
The compressor thermal technology measuring technology of purposes the present invention relates to freeze.
Background technology:
Every compressor that is used for refrigeration system, an important test event of stipulating in the GB is: the refrigeration capacity test of compressor, see GB GB9098---88 (the use in refrigerator totally-enclosedmotor---compressor) " 4.2 " joint.The compressor refrigerating capacity test facilities are complicated, and the consumption time is also very long, and reluctantly, the compressor product refrigerating capacity sample testing probability of design is extremely low usually, and obviously, this quality control for the compressor product is disadvantageous
Summary of the invention:
The present invention's purpose: propose the simple and direct method of testing that ratio of compression and air capacity are equal to fully in the compressor refrigerating capacity test implementation scheme of a kind of and GB regulation, for the quality control (improving the sampling observation rate) that improves compressor creates conditions.
In order to realize goal of the invention, the gordian technique that plan adopts is: marginal testing parameter and the GB determined in pneumatic system of the present invention by the standard compression machine require whether the differentiation tested compressor is qualified fast highly equivalently.
Characteristics of the present invention:
Allow work compression ratio that tested compressor adopts and air capacity and GB require its work compression ratio that in refrigeration system, adopts and air capacity identical, require to have reached very approaching equivalent degree with GB, but it is simple many that test facilities of adopting and running program thereof require than GB, and test speed reaches the degree that can finish several seconds.
Description of drawings:
Figure has illustrated embodiments of the invention.
1: air compressor; 2: gas receiver 3: pressure maintaining valve; 4: the first pressure display units (tensimeter); 5: air intake duct; 6: tested compressor; 7: gas outlet; 8: the second pressure display units (tensimeter); 9: flow valve; 10: air-gauge; 11: the buoy in the air-gauge; A: low-pressure gas source part; B: high pressure choked flow part.
Embodiment:
One. test facilities of the present invention comprise: the low-pressure gas source part A (comprises air compressor 1 or nitrogen cylinder at least, and pressure maintaining valve 3 and first pressure display unit 4 thereafter) and high pressure choked flow part B (comprising flow valve 9 and its second preceding pressure display unit 8 at least), and the air-gauge that includes buoy 11 10 that links to each other with high pressure choked flow part B.
Two. testing procedure of the present invention comprises: the air intake duct 5 and the gas outlet 7 of tested compressor 6 are serially connected in low-pressure gas source part A and high pressure choked flow part B respectively, between, energising starts after the tested compressor 6, can on second pressure display unit 8 and air-gauge 10, obtain data P and Q respectively, when P and Q are equal to or greater than critical data P respectively
0And Q
0The time, then: the refrigeration capacity test project of tested compressor 6 is qualified, otherwise: just defective.
Three. differentiate the whether qualified critical data P of tested compressor 6
0And Q
0Acquisition methods: be arranged in the test facilities of above-mentioned " " by the standard compression machine that refrigerating capacity is just up to standard (to replace on the position of tested compressor 6 in the accompanying drawing), and by with above-mentioned " two " in the identical testing procedure of tested compressor is checked and approved:
Partly continue in low-pressure gas source under the prerequisite of air feed, energising starts this standard compression machine, and regulates pressure maintaining valve, can make the pressure display unit of winning shown be that GB requires the standard evaporating pressure numerical value P in the refrigeration system
*, regulate flow valve again, by strengthening flow resistance, can make the shown pressure value of second pressure display unit be elevated to the standard condensing pressure P in the GB requirement refrigeration system
0, this P
0The above-mentioned critical data P that obtains exactly
0
At this moment, the buoy in the air-gauge will demonstrate with corresponding to above-mentioned P
*Be benchmark, again with P
0/ P
*Ratio of compression is the standard extraction flow calibration data Q of prerequisite
0, this Q
0The above-mentioned critical data Q that obtains exactly
0
In the test facilities of the invention described above:
1. the low-pressure gas source part A comprises air compressor 1 or nitrogen cylinder at least, and the pressure maintaining valve 3 and first pressure display unit 4, and the pressure sensing point of first pressure display unit 4 is positioned on the airflow direction after the pressure maintaining valve 3.
2. high pressure choked flow part B comprises the flow valve 9 and second pressure display unit 8 at least, and the pressure sensing point of second pressure display unit 8 is positioned on the airflow direction before the flow valve 9.
Implement should note when of the present invention following some:
1. being utilized should be identical as the two model of the above-mentioned standard compression machine of benchmark and tested compressor 6.
2. can continue under the prerequisite of air feed in the low-pressure gas source part A, energising starts this standard compression machine, and regulates pressure maintaining valve 3, and can make the pressure display unit 4 shown pressure values of winning is P
*(GB requires the standard evaporating pressure in the refrigeration system) regulates flow valve 9, by strengthening flow resistance, can make second pressure display unit, 8 shown pressure values be elevated to P
0(GB requires the standard condensing pressure in the refrigeration system), P
0/ P
*Be the standard operation ratio of compression.At this moment, the buoy 11 in the air-gauge 10 also can demonstrate with corresponding to above-mentioned P
*Be benchmark, again with P
0/ P
*Ratio of compression (has been employed P
0Promptly have the meaning that characterizes ratio of compression) for prerequisite: standard extraction flow calibration data Q
0
Obviously: be that the low pressure voltage stabilizing data that provided by air compressor 1 are P in the pneumatic system of the present invention
*The air tested media of (normally more than two of an atmospheric pressure times) requires very equivalence to create condition for reaching with GB.
Claims (3)
1. compressor refrigeration quantity equivalent detecting method identical with traffic requirement with the GB ratio of compression,
It is characterized in that:
One. its test facilities comprise: low-pressure gas source part (A) and high pressure choked flow part (B), and the air-gauge (10) that links to each other with high pressure choked flow part (B);
Two. differentiate the whether qualified testing procedure of tested compressor (6) and comprise: tested compressor (6) is serially connected in low-pressure gas source part (A) and high pressure choked flow part (B), between, energising starts tested compressor (6) afterwards, can on second pressure display unit (8) and air-gauge (10), obtain data P and Q respectively, when P and Q are equal to or greater than critical data P respectively
0And Q
0The time, then: the refrigeration capacity test project of tested compressor (6) is qualified, otherwise: just defective.
Three. differentiate the whether qualified critical data P of tested compressor (6)
0And Q
0Acquisition methods, be arranged in the test facilities of above-mentioned " " by the standard compression machine that refrigerating capacity is just up to standard, and by with above-mentioned " two " in the identical testing procedure of tested compressor (6) is checked and approved:
Continue in low-pressure gas source part (A) under the prerequisite of air feed, energising starts this standard compression machine, and adjusting pressure maintaining valve (3), can make the pressure display unit of winning (4) shown be that GB requires the standard evaporating pressure numerical value P* in the refrigeration system, regulate flow valve (9) again, by strengthening flow resistance, can make the shown pressure value of second pressure display unit (8) be elevated to the standard condensing pressure P in the GB requirement refrigeration system
0, this P
0The above-mentioned critical data P that obtains exactly
0
At this moment, the buoy (11) in the air-gauge (10) will demonstrate to be benchmark corresponding to above-mentioned P*, again with P
0/ P* ratio of compression is the standard extraction flow calibration data Q of prerequisite
0, this Q
0The above-mentioned critical data Q that obtains exactly
0
2. the compressor refrigeration quantity equivalent detecting method identical with traffic requirement according to claim 1 with the GB ratio of compression,
It is characterized in that:
Low-pressure gas source part (A) comprises air compressor (1) or nitrogen cylinder at least, and pressure maintaining valve (3) and first pressure display unit (4), and the pressure sensing point of first pressure display unit (4) is positioned at pressure maintaining valve on the airflow direction (3) afterwards.
3. the compressor refrigeration quantity equivalent detecting method identical with traffic requirement according to claim 1 with the GB ratio of compression,
It is characterized in that:
High pressure choked flow part (B) comprises flow valve (9) and second pressure display unit (8) at least, and the pressure sensing point of second pressure display unit (8) is positioned at flow valve on the airflow direction (9) before.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100507962A CN100419403C (en) | 2005-07-20 | 2005-07-20 | Compressor refrigeration quantity equivalent detecting method the same as state standard compression ratio and flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100507962A CN100419403C (en) | 2005-07-20 | 2005-07-20 | Compressor refrigeration quantity equivalent detecting method the same as state standard compression ratio and flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1900677A CN1900677A (en) | 2007-01-24 |
| CN100419403C true CN100419403C (en) | 2008-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100507962A Expired - Fee Related CN100419403C (en) | 2005-07-20 | 2005-07-20 | Compressor refrigeration quantity equivalent detecting method the same as state standard compression ratio and flow |
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| Country | Link |
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| CN (1) | CN100419403C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645474B (en) * | 2015-03-23 | 2017-03-22 | 刘斌 | Synchronous breathing oxygen supplying controller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0719660A (en) * | 1993-07-07 | 1995-01-20 | Tokyo Gas Co Ltd | Air conditioning system |
| JPH07301465A (en) * | 1994-05-02 | 1995-11-14 | Mitsubishi Heavy Ind Ltd | Two-stage compression type refrigerator |
| US20010020366A1 (en) * | 2000-03-03 | 2001-09-13 | Cho Young I. | Method and apparatus for increasing the efficiency of a refrigeration system |
| JP2003013875A (en) * | 2001-06-29 | 2003-01-15 | Sanyo Electric Co Ltd | Two-stage compression type compressor and refrigerating device using it |
| CN1558186A (en) * | 2004-02-12 | 2004-12-29 | 梁嘉麟 | Establishment method of simple testing scheme for compressor refrigerating capacity equivalent to national standard requirements |
| FR2864587A1 (en) * | 2003-12-24 | 2005-07-01 | Sanden Corp | Compressor control unit for vehicle`s air conditioning system, has control part emitting compressor volume control signal for controlling quantity of refrigerant flow from compressor, and estimating signal when quantity is saturated |
-
2005
- 2005-07-20 CN CNB2005100507962A patent/CN100419403C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0719660A (en) * | 1993-07-07 | 1995-01-20 | Tokyo Gas Co Ltd | Air conditioning system |
| JPH07301465A (en) * | 1994-05-02 | 1995-11-14 | Mitsubishi Heavy Ind Ltd | Two-stage compression type refrigerator |
| US20010020366A1 (en) * | 2000-03-03 | 2001-09-13 | Cho Young I. | Method and apparatus for increasing the efficiency of a refrigeration system |
| JP2003013875A (en) * | 2001-06-29 | 2003-01-15 | Sanyo Electric Co Ltd | Two-stage compression type compressor and refrigerating device using it |
| FR2864587A1 (en) * | 2003-12-24 | 2005-07-01 | Sanden Corp | Compressor control unit for vehicle`s air conditioning system, has control part emitting compressor volume control signal for controlling quantity of refrigerant flow from compressor, and estimating signal when quantity is saturated |
| CN1558186A (en) * | 2004-02-12 | 2004-12-29 | 梁嘉麟 | Establishment method of simple testing scheme for compressor refrigerating capacity equivalent to national standard requirements |
Non-Patent Citations (4)
| Title |
|---|
| 全自动制冷压缩机性能测试台控制技术研究. 陈钧，涂淑萍.制冷与空调，第5卷第1期. 2005 |
| 全自动制冷压缩机性能测试台控制技术研究. 陈钧，涂淑萍.制冷与空调，第5卷第1期. 2005 * |
| 小型制冷压缩机全自动测试系统的几点技术策略. 沈希，赵国军，计时鸣.工业仪表与自动化装置，第1期. 1997 |
| 小型制冷压缩机全自动测试系统的几点技术策略. 沈希，赵国军，计时鸣.工业仪表与自动化装置，第1期. 1997 * |
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| Publication number | Publication date |
|---|---|
| CN1900677A (en) | 2007-01-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Universe Filter Company Assignor: China Jiliang University Contract fulfillment period: 2008.10.25 to 2013.12.31 contract change Contract record no.: 2009330000209 Denomination of invention: Compressor refrigeration quantity equivalent detecting method the same as state standard compression ratio and flow Granted publication date: 20080917 License type: Exclusive license Record date: 2009.2.9 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.25 TO 2013.12.31; CHANGE OF CONTRACT Name of requester: ZHEJIANG UNIVERSE FILTER CO., LTD. Effective date: 20090209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20140720 |
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| EXPY | Termination of patent right or utility model |