CN103509638A - Refrigerating machine oil composition, and compressor and refrigeration equipment using the composition - Google Patents
Refrigerating machine oil composition, and compressor and refrigeration equipment using the composition Download PDFInfo
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- CN103509638A CN103509638A CN201310331850.5A CN201310331850A CN103509638A CN 103509638 A CN103509638 A CN 103509638A CN 201310331850 A CN201310331850 A CN 201310331850A CN 103509638 A CN103509638 A CN 103509638A
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Abstract
The invention provides a refrigerating machine oil composition and equipment using the composition. The composition includes at least one selected from hydrocarbon refrigerants and hydrofluorocarbon refrigerants, and oxygen-containing synthesized refrigerant oil, wherein the mass ratio of carbon atoms and oxygen atoms in the oxygen-containing synthesized refrigerant oil is not greater than 5. The composition and device can effectively improve the reliability and system performance of the compressor and refrigeration equipment.
Description
Technical field
The present invention relates to Material Field, particularly, the present invention relates to compressor and the refrigeration equipment of refrigerated machine oil composition and this refrigerated machine oil composition of application.
Background technology
In recent years, because traditional freonll-11 R22 refrigerant has destruction to ozonosphere, via Montreal international treaties regulation, the usage quantity of R22 is limited and stop using future.In addition, along with global air temperature warming, from global warming coefficient GWP, consider, the R410A refrigerant of high GWP etc. finally also can be substituted by low GWP refrigerant.Current industry is being found a kind of environmental protection refrigerant and is being developed.R32 is as not chloride one of hydro carbons and lower candidate refrigeration agent of Global warming index (GWP) fluoridized, and with its environmental protection, efficiency is high, cost is low etc., and feature receives the concern of industry circle, and take synthetic refrigeration agent Jun Bei industry circle that R32 is main body and paid close attention to.
When but R290 and R32 are used for compressing refrigerator, adopt existing refrigerator oil as mineral oil, alkylbenzene, synthetic POE wet goods during as lubricating oil, all not ideal.R290 refrigeration agent, owing to dissolving completely with oil product, has therefore reduced Basic oil Viscosity, has reduced lubricant effect, thereby causes compressor wear resistance and stopping property to decline, and compressor performance and life-span greatly reduce.
R32 refrigeration agent is contrary, poor with oil product intermiscibility, occurs the phenomenon that oil is separated with refrigerant within the scope of-20 ℃～50 ℃.If adopt the lubricating oil immiscible with refrigerant in refrigeration system, in system, on vaporizer, easily cause the layering of oil and refrigerant, lubricating oil is not easy to get back in compressor, causes compressor moving parts oil starvation, affects the reliability of compressor.The oil product being simultaneously trapped on vaporizer can affect the heat exchanger effectiveness of vaporizer again, causes system efficiency to decline.
Therefore, need research to obtain a kind of the have refrigerator oil of suitable consistency and the composition of refrigeration agent, to treat further to improve the serviceability of compressor.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or at least provides a kind of useful business to select.For this reason, compressor and refrigeration equipment that one object of the present invention is to propose a kind of refrigerated machine oil composition and this refrigerated machine oil composition of application, utilize this refrigerated machine oil composition can effectively improve reliability and the system performance of compressor.
Of the present invention, aspect first, the present invention proposes a kind of refrigerated machine oil composition, described refrigerated machine oil composition comprises at least one in hydrocarbon refrigerant and HFC class refrigeration agent, and containing the synthetic refrigerator oil of oxygen class.According to embodiments of the invention, described carbon atom and the Sauerstoffatom mass ratio synthesizing in refrigerator oil containing oxygen class is not more than 5.Adopt this refrigerated machine oil composition can effectively improve the reliability of compressor, improve heat exchanger effectiveness and the system efficiency of vaporizer.
In addition, refrigerated machine oil composition according to the above embodiment of the present invention can also have following additional technical characterictic:
According to embodiments of the invention, the described content containing Sauerstoffatom in the synthetic refrigerator oil of oxygen class is not less than 10 % by weight.Oxygen atom content is too low, and the polarity of refrigerator oil is too small, with the intermiscibility variation of refrigerant, therefore requires refrigerator oil to have certain polarity, proposes oxygen atom content and is not less than 10 % by weight.
According to embodiments of the invention, described containing the synthetic refrigerator oil of oxygen class, the kinematic viscosity in the time of 40 degrees Celsius is 2～200mm
2/ s.Can further improve the lubrication containing oxygen class refrigerator oil thus, to further improve wear resisting property and the sealing property of compressor.
According to embodiments of the invention, described is at least one of polyalkane glycol ethers (PAG), polyvinyl ether (PVE), polyol ester (POE) and polycarbonate containing the synthetic refrigerator oil of oxygen class.Can further improve lubrication thus.
According to embodiments of the invention, the described synthetic refrigerator oil of oxygen class that contains contains: the extreme-pressure additive of 0.1～5.0 % by weight; The antioxidant of 0.01～2 % by weight; The acid scavenger of 0.01～2.0 % by weight; And the metal passivator of 1ppm～100ppm.Can further improve oilness, stability and the endurance quality of refrigerator oil thus.
According to embodiments of the invention, in described refrigerated machine oil composition, described HFC refrigeration agent is R32.Make thus refrigerator oil and this refrigeration agent be used in conjunction with the lubrication that reaches good, to better support the running of compressor.
According to embodiments of the invention, hydrocarbon refrigerant described in described refrigerated machine oil composition is to be selected from least one of ethane, propane, butane and Trimethylmethane.Make thus refrigerator oil and this refrigeration agent be used in conjunction with the lubrication that reaches good, to better support the running of compressor.
According to embodiments of the invention, described refrigerated machine oil composition comprises: the described of 5～95 weight parts synthesized refrigerator oil containing oxygen class; And the described hydrocarbon refrigerant of 5～95 weight parts or HFC class refrigeration agent.To can significantly improve the over-all properties of lubricant.
Aspect second of the present invention, the present invention proposes a kind of compressor, described compressor adopts the described refrigerated machine oil composition of above-described embodiment.Can significantly improve thus working efficiency and the performance of compressor, to extend to greatest extent compressor work-ing life.
Aspect San Ge of the present invention, the present invention proposes a kind of refrigeration equipment, described refrigeration equipment comprises compressor described in above-described embodiment.Can significantly improve thus the comprehensive refrigeration performance of refrigeration equipment, to effectively improve the work-ing life of refrigeration equipment.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the embodiment the following describes is exemplary, is intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
Of the present invention is that following discovery based on contriver completes:
Contriver finds, there is dissolving completely and the more serious phenomenon of layering of lubricating oil and refrigeration agent more in existing refrigeration agent and lubricating oil composition, cause lubricating oil to be too much dissolved in refrigeration agent and cannot reach lubricated effect, compressor wear resistance and stopping property are declined, compressor performance reduces, life-span minimizing, or remain in vaporizer, affect the heat exchanger effectiveness of vaporizer, cause system efficiency to decline.The present inventor solves emphatically the consistency of lubricating oil and refrigeration agent, by regulating the carbon oxygen content ratio in lubricating oil and then the polarity of lubricating oil being regulated, thereby obtain having lubricating oil and the refrigerant composition of more suitable refrigerant solubleness, make lubricant bring into play good lubrication, and then complete the present invention.
According to a particular embodiment of the invention, " solubleness " in the present invention, mentioned refer under certain temperature and pressure, is dissolved in the percentage composition that the quality of liquid refrigerant in lubricating oil accounts for lubricating oil and refrigerant mixture total mass.
For this reason, of the present invention, aspect first, the present invention proposes a kind of refrigerated machine oil composition.According to one embodiment of the invention, said composition comprises: at least one in hydrocarbon refrigerant and HFC class refrigeration agent, and containing the synthetic refrigerator oil of oxygen class.Wherein, containing carbon atom and Sauerstoffatom mass ratio in the synthetic refrigerator oil of oxygen class, be not more than 5.According to a particular embodiment of the invention, in above-mentioned refrigerated machine oil composition, between lubricating oil and refrigeration agent, there is suitable solubleness, make said composition can be good at bringing into play the lubrication of lubricant.According to a particular embodiment of the invention, because carbon atom and Sauerstoffatom mass ratio containing in the synthetic refrigerator oil of oxygen class are not more than 5, and then make this lubricating oil there is suitable polarity, and between hydrocarbon refrigerant and HFC class refrigeration agent, can keep suitable intermiscibility, should in hydrocarbon refrigerant and HFC class refrigeration agent, there is suitable solubleness containing the synthetic refrigerator oil of oxygen class, and then can better bring into play the lubrication containing the synthetic refrigerator oil of oxygen class.
According to one embodiment of the invention, the content that synthesizes Sauerstoffatom in refrigerator oil containing oxygen class is not less than 10 % by weight.What have thus this oxygen atom content has suitable polarity containing the synthetic refrigerator oil of oxygen class, and what have this polarity can keep having suitable intermiscibility between itself and hydrocarbon refrigerant and HFC class refrigeration agent containing the synthetic refrigerator oil of oxygen class.And then can be so that return to its lubrication containing the synthetic refrigerator oil of oxygen class.Can further improve wear resistance and the stopping property of compressor thus, and then improve reliability and the life-span of compressor.
According to one embodiment of the invention, the kinematic viscosity containing the synthetic refrigerator oil of oxygen class in the time of 40 degrees Celsius is 2～200mm
2/ s.To make this refrigerator oil, can effectively bring into play preferably lubrication.This synthesizes the assurance that can more be sure of between refrigerator oil and hydrocarbon refrigerant and HFC class refrigeration agent and has suitable intermiscibility containing oxygen class simultaneously, brings into play better its lubrication, guarantees compressor and the operation of interchanger high-quality, improves system efficiency.
According to one embodiment of the invention, containing oxygen class, synthesize the type of refrigerator oil and be not particularly limited, according to a particular embodiment of the invention, containing the synthetic refrigerator oil of oxygen class, can be at least one of polyalkane glycol ethers (PAG), polyvinyl ether (PVE), polyol ester (POE) and polycarbonate.Can, so that itself and hydrocarbon refrigerant and HFC class refrigeration agent are used in conjunction with the good lubrication of performance, improve compressor performance and system efficiency thus.
According to the embodiment of the present invention, containing the synthetic refrigerator oil of oxygen class, contain: the extreme-pressure additive of 0.1～5.0 % by weight; The antioxidant of 0.01～2 % by weight; The acid scavenger of 0.01～2.0 % by weight; And the metal passivator of 1ppm～100ppm.Improve thus oilness, stability and the endurance quality of refrigerator oil, to make this refrigerator oil can bring into play preferably lubrication.According to a particular embodiment of the invention, the type of extreme-pressure additive is also not particularly limited, according to a particular embodiment of the invention, extreme-pressure additive can be for the more than one hydroxyl of phosphoric acid the esterified phosphoric acid ester obtaining.Can reach thus and on moving parts surface, form layer protecting film, the wearing and tearing that are conducive to alleviate moving parts, can further improve the lubricity of refrigerator oil thus.According to a particular embodiment of the invention, antioxidant can react with the oxidation factor such as oily middle acid substance and metal fragment, reduces the bad effect of these oxidation factor to oil product, extends the work-ing life of oil product.According to a particular embodiment of the invention, adding appropriate acid scavenger can catch the acidic substance that generate in oil, neutralize, reduce oil product deteriorated, extend the oil product life-span, can the polarity containing the synthetic refrigerator oil of oxygen class be regulated thus, thus can be so that can suitably mix with refrigeration agent containing the synthetic refrigerator oil of oxygen class, to further carry lubricity and the refrigeration performance of refrigerated machine oil composition.According to a particular embodiment of the invention, in above-mentioned refrigerated machine oil composition, contain the metal passivator of denier, can further reduce the copper-plated generation of moving parts thus.
According to one embodiment of the invention, the type of HFC refrigeration agent is also not particularly limited, and according to a particular embodiment of the invention, HFC refrigeration agent can be R32.R32 refrigeration agent is as not chloride hydro carbons and the lower refrigeration agent of Global warming index (GWP) fluoridized, the excellent characteristics such as therefore have environmental protection, efficiency is high and cost is low.Adopt R32 refrigeration agent simultaneously and be used in conjunction with containing the synthetic refrigerator oil of oxygen class, can make to there is suitable solubleness containing the synthetic refrigerator oil of oxygen class, to better bring into play the lubrication of lubricating oil, can further improve thus the performance of compressor, increase the service life.
According to one embodiment of the invention, the type of hydrocarbon refrigerant is also not particularly limited, and according to a particular embodiment of the invention, hydrocarbon refrigerant can be for being selected from least one of ethane, propane, butane and Trimethylmethane.Adopt thus this refrigeration agent can make to there is suitable solubleness containing the synthetic refrigerator oil of oxygen class, can further improve thus the performance of compressor, increase the service life.
According to one embodiment of the invention, refrigerated machine oil composition comprises: the described of 5～95 weight parts synthesized refrigerator oil containing oxygen class; And the described hydrocarbon refrigerant of 5～95 weight parts or HFC class refrigeration agent.To can improve to greatest extent the over-all properties of lubricant.
Aspect second of the present invention, the present invention proposes a kind of compressor, according to a particular embodiment of the invention, this compressor adopts the refrigerated machine oil composition of above-mentioned arbitrary embodiment.Owing to thering is suitable polarity containing the synthetic refrigerator oil of oxygen class in this refrigerated machine oil composition, make it in hydrocarbon refrigerant and HFC class refrigeration agent, there is suitable solubleness, and then make this refrigerated machine oil composition there is good lubricity.Compressor of the present invention is owing to adopting this refrigerated machine oil composition, so this compressor has good wear resistance and stopping property.Before the description carried out about the feature and advantage of refrigerated machine oil composition, be still applicable to this refrigeration equipment, do not repeat them here.
Aspect San Ge of the present invention, the present invention proposes a kind of refrigeration equipment, according to a particular embodiment of the invention, this refrigeration equipment comprises the compressor of above-described embodiment.Due to above-mentioned compressor have performance preferably refrigerated machine oil composition the over-all properties of compressor is significantly improved, therefore, adopt the above-mentioned high performance compressor that has, can significantly improve the comprehensive refrigeration performance of refrigeration equipment, to further improve the work-ing life of refrigerating efficiency and the refrigeration equipment of refrigeration equipment.According to embodiments of the invention, the example of refrigeration equipment can comprise air-conditioning, refrigerator, refrigerator etc.Before the description carried out about the feature and advantage of refrigerated machine oil composition, be still applicable to this refrigeration equipment, do not repeat them here.
Below with reference to specific embodiment, present invention is described, it should be noted that, these embodiment are only descriptive, and do not limit the present invention in any way.
Embodiment 1
Refrigerated machine oil composition: refrigeration agent is R32, lubricating oil be new polyol ester (POE) (C/O=4.5/1).
Embodiment 2
Refrigerated machine oil composition: refrigeration agent is R290, lubricating oil be polyalkane glycol ethers (PAG) (C/O=3.1/1).
Embodiment 3
Refrigerated machine oil composition: refrigeration agent is R290, lubricating oil be polyalkane glycol ethers (PAG) (C/O=2.6/1).
Comparative example 1
Refrigerated machine oil composition: refrigeration agent is R410A, lubricating oil be polyol ester (POE) (C/O=5/1).
Comparative example 2
Refrigerated machine oil composition: refrigeration agent is R32, lubricating oil be polyol ester (POE) (C/O=5/1).
Comparative example 3
Refrigerated machine oil composition: refrigeration agent is R410A, lubricating oil be polyol ester (POE) (C/O=5/1).
Comparative example 4
Refrigerated machine oil composition: refrigeration agent is R290, lubricating oil be polyol ester (POE) (C/O=5/1).
Evaluate:
1, two layers of separation temperature of the refrigerated machine oil composition of embodiment 1 and comparative example 1-2 are measured.
2, the solubleness of the refrigerated machine oil composition of embodiment 2-3 and comparative example 3-4 is measured.
" solubleness " refer under certain temperature and pressure, is dissolved in the percentage composition that the quality of liquid refrigerant in lubricating oil accounts for lubricating oil and refrigerant mixture total mass.
3, two layers of separation temperature are carried out measuring method: refrigeration agent and lubricating oil are pressed to certain ratio mixing, enclose in glass pressure container, container is put in thermostat container, mixture is cooling gradually from room temperature, while being cooled to certain temperature, mixture starts to occur two phase stratification from the solution of single mixing, the temperature that occurs two phase stratification is designated as to two layers of separation temperature under this ratio, by measuring different mixture ratios, just can obtain two layers of separation temperature curve, the highest separation temperature point is designated as to two layers of separation temperature of oil and refrigerant here.
Measurement result is in Table 1-2.
Table 1
Table 2
Conclusion:
In table 1, comparative example 1-2(conventional lubrication is oily) and lubricating oil of the present invention and bis-layers of separation temperature test result of R32.Traditional POE oil C/O ratio is 5/1, and R32 is used in conjunction with refrigerant ,-20～50 ℃ of all separation, cannot meet the use of compressor of air conditioner.By C/O being adjusted than being 4.5/1(embodiment 1) after be still used in conjunction with refrigerant R32, result is in separation 8 ℃ below, it is suitable with existing R410A that its separation temperature has reached, and can meet the use of compressor of air conditioner.Therefore by adjusting C/O ratio, can significantly improve the suitability of polyol ester (POE).
Comparative example 3-4(conventional lubrication oil in table 2) and lubricating oil of the present invention and R290 under uniform temp and pressure, test the result of solubleness.As can be known from Table 2, traditional polyol ester (POE) is to be used in conjunction with 2 of solubleness with R410A to accompany with the solubleness that R290 is used in conjunction with.The polyalkane glycol ethers (PAG) of using in embodiment 2-3 is before comparing without mistake adjustment C/O, and this lubricating oil can not be applied to compressor of air conditioner substantially.By adjust in polyalkane glycol ethers (PAG) C/O than after, its solubleness has dropped to the level that approaches the solubleness that existing polyol ester (POE) and R410A be used in conjunction with.Therefore, by adjusting C/O ratio, can significantly improve the suitability of whole polyalkane glycol ethers (PAG).
Claims (10)
1. a refrigerated machine oil composition, comprises at least one in hydrocarbon refrigerant and HFC class refrigeration agent, and containing the synthetic refrigerator oil of oxygen class, it is characterized in that, described carbon atom and the Sauerstoffatom mass ratio synthesizing in refrigerator oil containing oxygen class is not more than 5.
2. refrigerated machine oil composition according to claim 1, is characterized in that, the described content containing Sauerstoffatom in the synthetic refrigerator oil of oxygen class is not less than 10 % by weight.
3. refrigerated machine oil composition according to claim 1, is characterized in that, described containing the synthetic refrigerator oil of oxygen class, the kinematic viscosity in the time of 40 degrees Celsius is 2～200mm
2/ s.
4. refrigerated machine oil composition according to claim 1, is characterized in that, described is at least one of polyalkane glycol ethers (PAG), polyvinyl ether (PVE), polyol ester (POE) and polycarbonate containing the synthetic refrigerator oil of oxygen class.
5. refrigerated machine oil composition according to claim 1, is characterized in that, the described synthetic refrigerator oil of oxygen class that contains contains:
The extreme-pressure additive of 0.1～5.0 % by weight;
The antioxidant of 0.01～2 % by weight;
The acid scavenger of 0.01～2.0 % by weight; And
The metal passivator of 1ppm～100ppm.
6. refrigerated machine oil composition according to claim 1, is characterized in that, described HFC refrigeration agent is R32.
7. refrigerated machine oil composition according to claim 1, is characterized in that, described hydrocarbon refrigerant is to be selected from least one of ethane, propane, butane and Trimethylmethane.
8. refrigerated machine oil composition according to claim 1, is characterized in that, comprises:
The described of 5～95 weight parts synthesized refrigerator oil containing oxygen class; And
The described hydrocarbon refrigerant of 5～95 weight parts or HFC class refrigeration agent.
9. a compressor, is characterized in that, adopts the refrigerated machine oil composition described in claim 1～8 any one.
10. a refrigeration equipment, is characterized in that, described refrigeration equipment comprises compressor claimed in claim 9.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104152221A (en) * | 2014-08-01 | 2014-11-19 | 广东美芝制冷设备有限公司 | Composition containing refrigeration oil and refrigerant and application thereof |
| CN106705472A (en) * | 2015-07-24 | 2017-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Working medium and refrigeration device applying same |
| CN107964444A (en) * | 2016-10-20 | 2018-04-27 | 上海海立电器有限公司 | A kind of refrigerated machine oil composition, fluid composition, compressor and refrigeration plant |
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| US20070032391A1 (en) * | 2003-08-01 | 2007-02-08 | Kazuo Tagawa | Refrigerating machine oil composition |
| CN101818093A (en) * | 2004-04-02 | 2010-09-01 | 出光兴产株式会社 | Refrigerating machine oil composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104152221A (en) * | 2014-08-01 | 2014-11-19 | 广东美芝制冷设备有限公司 | Composition containing refrigeration oil and refrigerant and application thereof |
| CN106705472A (en) * | 2015-07-24 | 2017-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Working medium and refrigeration device applying same |
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Application publication date: 20140115 |