CN102644600B - Enclosed oil quantity optimization method for rotary compressor using hydrocarbon refrigerant - Google Patents
Enclosed oil quantity optimization method for rotary compressor using hydrocarbon refrigerant Download PDFInfo
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- CN102644600B CN102644600B CN201110044811.8A CN201110044811A CN102644600B CN 102644600 B CN102644600 B CN 102644600B CN 201110044811 A CN201110044811 A CN 201110044811A CN 102644600 B CN102644600 B CN 102644600B
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Abstract
The invention relates to an enclosed oil quantity optimization method for a rotary compressor using hydrocarbon refrigerant. The enclosed lubricating oil quantity of the compressor is calculated according to the following formula: m is less than or equal to 1.325 X P*(Q/K) 0.5*LFL1.25, wherein m is the enclosed lubricating oil quantity of the compressor, Q is air conditioner refrigeration capacity which is determined under conditions regulated in the national standard when the compressor is carried by an air conditioner, LFL is the lowest combustion limit of the refrigerant, P and K is parameters, the P ranges from 1.8 to 2.2 and the K ranges from 150 to 220. By adopting the enclosed oil quantity calculation formula disclosed by the invention, the enclosed lubricating oil quantity can be limited, the mass of the refrigerant dissolved in the lubricating oil in the shell of the compressor can be reduced, the content of the refrigerant in the shell of the compressor is reduced, the enclosed refrigerant quantity of the entire air conditioning system is decreased, the safety of the hydrocarbon air conditioning system is improved and the enclosed refrigerant quantity of the air conditioning system is enabled to better satisfy the current regulations.
Description
Technical field
The present invention relates to a kind of oil sealing amount optimization method of reduction carbon-hydrogen refrigerant closed rotating compressor, particularly a kind of rotary compressor of hydrocarbon refrigeration agent.
Background technique
R22 refrigeration agent is classified as progressively superseded refrigeration agent of time limit by " Montreal agreed " book.Europe, Japan start to turn to R410A refrigeration agent to substitute already, and the U.S. also will forbid that in 2010 R22 is used in new refrigeration product.China has also accelerated the superseded paces of R22, will in 2013, be frozen in the average level of 2009～2010 years, within 2015, will reach 10% the requirement of cutting down baseline values.And more domestic main brands also start to release R410A as the environment-friendly air conditioner of refrigeration agent.Yet the GWP value of R410A is also larger than R22, " Kyoto Protocol " classified R410A as the greenhouse gases of controlled discharge, and all R410A are never long-range replacement schemes.
As HCFC (as R22), HFC (as R410A, R407C)) alternative refrigerant, existing carbon-hydrogen refrigerant the most industry is paid close attention to.But carbon-hydrogen refrigerant, for air-conditioner system, has a very important problem, be exactly that it has high combustibility, must limit the refrigeration agent enclosed volume of hydrocarbon air-conditioner system.So be necessary to take measures, to reduce the amount of refrigerant in compressor housing, thereby the refrigeration agent enclosed volume of air conditioner machine system is also reduced.
Current conventional R22, in the non-flammable coolant compressor such as R410A, the lubricant oil of inclosure is more.Because the lubricant oil in compressor is dissolved with refrigeration agent, if adopt the lubricant oil inclosure amount of the compressor of carbon-hydrogen refrigerant, with current conventional R22, the same words of enclosing more lubricant oil of the non-flammable coolant compressor such as R410A, the content of the combustible refrigerant in system is larger, will be unfavorable for the Security of flammable air conditioner.
Adopting at present the lubricant oil inclosure amount of non-combustible coolant compressor more, can, with reference to following table, be specifically the lubricant oil inclosure amount situation explanation of a general compressor:
On continuous
| 3. | 3500 | 480 |
| 4. | 5000 | 620 |
| 5. | 6100 | 750 |
| 6. | 7500 | 1100 |
If adopt the lubricant oil inclosure amount of the compressor of carbon-hydrogen refrigerant, with current conventional R22, the same words of enclosing more lubricant oil of the non-flammable coolant compressor such as R410A, we can look at following table, can know, the quality of the combustible refrigerant dissolving in lubricant oil (to adopt carbon-hydrogen refrigerant, R290 is example):
The quality of the combustible refrigerant dissolving in the lubricant oil of compressor is very large as seen from the above table! Being dissolved in the refrigeration agent in lubricant oil, is not participate in refrigeration cycle, to the not contribution of the refrigerating capacity of air conditioner, can think to be exactly waste at all!
Summary of the invention
Object of the present invention aims to provide and a kind ofly can meet the regulations such as IEC 60335-2-40 (2005), BS EN378 (2008), meet carbon-hydrogen refrigerant safety applications requirement in the world, can promote better the oil sealing amount optimization method of the rotary compressor of hydrocarbon refrigeration agent of flammable carbon-hydrogen refrigerant application, to overcome deficiency of the prior art.
By the oil sealing amount optimization method of a kind of rotary compressor of hydrocarbon refrigeration agent of this object design, it is characterized in that according to formula m≤1.325 * P * (Q/K)
0.5* LFL
1.25calculate the lubricant oil inclosure amount of compressor; In formula: when the lubricant oil inclosure amount that m is compressor, Q carry air conditioner for the compressor of measuring under GB rated condition, minimum limit of inflammability, P and the K that the refrigerating capacity of air conditioner, LFL are refrigeration agent is parameter; Wherein, parameter P span is 1.8～2.2; Parameter K span is 150～220.Wherein, the value of the LFL of refrigeration agent has definition in ASHRAE standard 34-2010; The testing standard of Q is GB/T 7725 (2004).
Parameter P span is 1.8～2.0; Or parameter P value is 1.8,1.9 or 2.0; Or parameter P span is 2.0～2.2; Or parameter P value is 2.1 or 2.2.
Parameter K span is 150～180; Or parameter K value is 150,160,170 or 180; Or parameter K span is 190～220; Or parameter K value is 190,200,210 or 220.
The invention discloses one for using the formula of oil sealing amount of the closed rotating compressor of carbon-hydrogen refrigerant, the restriction that can carry out its lubricant oil inclosure amount by formula, can reduce the quality of the refrigeration agent dissolving in lubricant oil in compressor housing, thereby the amount of refrigerant in minimizing compressor housing, the refrigeration agent enclosed volume of whole air-conditioning system is declined, the Security that has improved hydrocarbon air-conditioning system.Make the refrigeration agent enclosed volume of air-conditioning system meet better current laws and regulations requirement., can meet under the prerequisite of refrigeration agent enclosed volume rules meanwhile, by increasing refrigeration agent enclosed volume, further improve the performance of air-conditioning system.This method can meet the regulations such as IEC 60335-2-40 (2005), BS EN 378 (2008), meets carbon-hydrogen refrigerant safety applications requirement in the world, can promote better flammable carbon-hydrogen refrigerant application.
Accompanying drawing explanation
Fig. 1 is R290 refrigeration agent enclosed volume and Air conditioner refrigerating capacity graph of a relation.
Fig. 2 is R290 refrigeration agent enclosed volume and air conditioner efficiency graph of a relation.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
R290 (propane), the carbon-hydrogen refrigerants such as R1270 (propylene) are 0 to depletion of the ozone layer coefficient, global warming coefficient GWP value is very low, substantially can ignore, and is long-range substitute.Yet, according to American National Standard/U.S. heating refrigerating conditioner engineering Shi Xuehui standard A NSI/ASHRAE 34 < < refrigeration agent method for numbering serial and Security assortment > >, R290 (propane), the Security assortment of the carbon-hydrogen refrigerants such as R1270 (propylene), be defined as A3 level refrigeration agent, be hypotoxicity, high combustible refrigerant.
In the world, in order to promote better the application of flammable carbon-hydrogen refrigerant, put into effect the safety applications that associated safety rules remove to instruct carbon-hydrogen refrigerant, for example IEC 60335-2-40 (2005), and BS EN378 (2008).Because if the concentration of contained flammable carbon-hydrogen refrigerant has reached the minimum limit of inflammability (LFL) of refrigeration agent itself in room, meet incendiary source, will burn! Therefore above two parts of standards, are used the upper limit of refrigeration agent enclosed volume of the air-conditioning system of flammable carbon-hydrogen refrigerant, have carried out limiting (the restriction regulation of two parts of standards is all identical).
In order to meet refrigeration agent enclosed volume regulation, a kind of oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent is disclosed, it is according to formula m≤1.325 * P * (Q/K)
0.5* LFL
1.25calculate the lubricant oil inclosure amount of compressor; In formula: (the unit: W), the LFL minimum limit of inflammability that are refrigeration agent (unit: kg/m^3), P and K be parameter of the refrigerating capacity when lubricant oil inclosure amount that m is compressor, Q are carried air conditioner for the compressor of measuring under GB rated condition; Wherein, parameter P span is 1.8～2.2; Parameter K span is 150～220.
According to above-mentioned formula, illustrate below, wherein, carbon-hydrogen refrigerant adopts R290.For the lubricant oil inclosure amount of R290 compressor in air conditioner, the effect obtaining according to the optimization formula of this patent is as following table, and the R290 quality being dissolved with in the lubricant oil in the visible compressor housing of following table declines greatly.
In addition, the refrigerating capacity of R290 air conditioner and efficiency, be related with the enclosed volume of refrigeration agent, respectively referring to Fig. 1 and Fig. 2: simultaneously, can find, in certain interval range, the refrigerating capacity of air conditioner and efficiency all increase along with the increase of R290 refrigeration agent enclosed volume.So, if adopt the enclosed volume that reduces lubricant oil, keeping under the prerequisite of the total enclosed volume of the original refrigeration agent of air conditioner, the R290 refrigerant quality that participates in refrigeration cycle increases, and like this, the performance of air conditioner can further be mentioned raising.
Claims (9)
1. an oil sealing amount optimization method for rotary compressor of hydrocarbon refrigeration agent, is characterized in that according to formula m≤1.325 * P * (Q/K)
0.5* LFL
1.25calculate the lubricant oil inclosure amount of compressor; In formula: in formula: the lubricant oil inclosure amount that m is compressor, unit is ml, refrigerating capacity when Q carries air conditioner for the compressor of measuring under GB rated condition, unit is W, the minimum limit of inflammability that LFL is refrigeration agent, unit is kg/m
3, P and K are parameter; Wherein, parameter P span is 1.8～2.2; Parameter K span is 150～220.
2. the oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent according to claim 1, is characterized in that parameter P span is 1.8～2.0.
3. the oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent according to claim 2, is characterized in that parameter P value is 1.8,1.9 or 2.0.
4. the oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent according to claim 1, is characterized in that parameter P span is 2.0～2.2.
5. the oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent according to claim 4, is characterized in that parameter P value is 2.1 or 2.2.
6. according to the oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent described in claim 2 to 5 any one, it is characterized in that parameter K span is 150～180.
7. the oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent according to claim 6, is characterized in that parameter K value is 150,160,170 or 180.
8. according to the oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent described in claim 2 to 5 any one, it is characterized in that parameter K span is 190～220.
9. the oil sealing amount optimization method of rotary compressor of hydrocarbon refrigeration agent according to claim 8, is characterized in that parameter K value is 190,200,210 or 220.
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| CN104989652B (en) * | 2015-07-09 | 2017-11-07 | 广东美芝制冷设备有限公司 | The compressor of air-conditioning system and the air-conditioning system with the compressor |
| CN110736239B (en) * | 2019-10-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Method and device for determining lubricating oil allowance in air conditioner |
Citations (2)
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| CN1218821A (en) * | 1997-10-30 | 1999-06-09 | 松下电器产业株式会社 | Working medium for refrigerating circulation device and refrigerating circulation device with said medium |
| CN101270274A (en) * | 2008-05-19 | 2008-09-24 | 周飞 | Energy-saving environment-protecting abrasion-proof canned carbon-hydrogen refrigerant |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08278062A (en) * | 1996-04-01 | 1996-10-22 | Mitsubishi Electric Corp | Refrigeration air conditioner |
| JP2002339865A (en) * | 2001-05-17 | 2002-11-27 | Toyota Industries Corp | Compressor for vehicular air conditioning and air conditioner provided with the same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218821A (en) * | 1997-10-30 | 1999-06-09 | 松下电器产业株式会社 | Working medium for refrigerating circulation device and refrigerating circulation device with said medium |
| CN101270274A (en) * | 2008-05-19 | 2008-09-24 | 周飞 | Energy-saving environment-protecting abrasion-proof canned carbon-hydrogen refrigerant |
Non-Patent Citations (4)
| Title |
|---|
| R290及其冷冻油混合物互溶特性研究;熊爱凌等;《上海海事大学学报》;20040930;第25卷(第3期);全文 * |
| 吴晓丽.浅谈空调器IEC60335-2-40:2005《家用和类似用途电器的安全热泵、空调器和除湿机的特殊要求》A1增补件.《家用电器》.2009,(第2期), * |
| 浅谈空调器IEC60335-2-40:2005《家用和类似用途电器的安全热泵、空调器和除湿机的特殊要求》A1增补件;吴晓丽;《家用电器》;20090215(第2期);全文 * |
| 熊爱凌等.R290及其冷冻油混合物互溶特性研究.《上海海事大学学报》.2004,第25卷(第3期), * |
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