CN105041660A - Rotary compressor and refrigerating equipment comprising same - Google Patents
Rotary compressor and refrigerating equipment comprising same Download PDFInfo
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- CN105041660A CN105041660A CN201510416256.5A CN201510416256A CN105041660A CN 105041660 A CN105041660 A CN 105041660A CN 201510416256 A CN201510416256 A CN 201510416256A CN 105041660 A CN105041660 A CN 105041660A
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Abstract
The invention discloses a rotary compressor and refrigerating equipment comprising the same. The rotary compressor comprises a shell, a motor and a compressing mechanism. The compressing mechanism comprises a cylinder, an eccentric shaft, a piston, a main bearing and an auxiliary bearing. Lubricating oil and an HFC refrigerant are encapsulated in the shell, and the lubricating oil contains a nanometer additive. The rotary compressor is low in operating cost and can meet the requirements for energy efficiency and reliability.
Description
Technical field
The invention belongs to Compressor Technology field, specifically, the present invention relates to a kind of rotary compressor and the chiller plant containing this rotary compressor.
Background technique
In recent years, along with the aggravation of market competition, more and more deep around the low cost of rotary compressor, high reliability and application study.Common refrigeration compressor forms primarily of housing member, compressing mechanism, motor and liquid-storage container parts.Housing member and compressing mechanism and motor are the requisite constituent elements of refrigeration compressor, and liquid-storage container is arranged on outside, and main rising prevents compressor from sucking liquid refrigerants, the function of filtration system impurity.
Existing hfc refrigerant generally all uses the artificial oils such as alkylbenzene oil, ether oil, ester oil, but artificial oil price is higher, is the biggest obstacle causing compressor to reduce costs.Although mineral oil cost is lower, incompatible with hfc refrigerant.If HFC uses mineral oil, the mineral oil of immiscible property can be stagnated in a large number between system condenser and vaporizer, can not return air-conditioning system immediately, thus affects air-conditioning system heat exchange efficiency, causes systematic function low.
Therefore, existing compressor is further improved.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is to propose a kind of rotary compressor and the chiller plant containing this rotary compressor, and this rotary compressor has lower operating cost, and can meet the requirement of efficiency and reliability.
In one aspect of the invention, the present invention proposes a kind of rotary compressor, described rotary compressor comprises housing and compressing mechanism, described compressing mechanism comprises cylinder assembly, eccentric shaft, piston, main bearing and supplementary bearing, lubricant oil and hfc refrigerant is packaged with, containing nanometer additive in described lubricant oil in described housing.
Thus, according to lubricant oil in the rotary compressor of the embodiment of the present invention, there is higher greasy property, thus make this compressor have higher system energy efficiency and operating reliability.
In addition, rotary compressor according to the above embodiment of the present invention can also have following additional technical characteristics:
In some embodiments of the invention, the dissolution rate of described lubricant oil in hfc refrigerant is 0.1 ~ 30%.Thus, compressor operating cost can significantly be reduced.
In some embodiments of the invention, described lubricant oil is be selected from least one in naphthenic mineral oil, alkylbenzene mineral oil and polyatomic alcohol polybasic alcohol ester oil.Thus, compressor operating cost can be reduced further.
In some embodiments of the invention, described nanometer additive is be selected from least one in laminated inorganic matter nano particle, metal nanoparticle, borate nano particle, carbonite nano particle, sulfide nanoparticle, oxide nano particles, hydroxide nanoparticles, rare earth compound nano particle and polymer microballoon.Thus, significantly can improve the greasy property of lubricant oil, thus improve system energy efficiency and the operating reliability of compressor further.
In some embodiments of the invention, described metal nanoparticle is be selected from least one in copper nano particles, silver nano-grain, nano nickel particles and bismuth nano particle.Thus, system energy efficiency and the operating reliability of compressor can be improved further.
In some embodiments of the invention, the kinematical viscosity of described lubricant oil at 40 DEG C is 10 ~ 150mm
2/ s.Thus, system energy efficiency and the operating reliability of compressor can be improved further.
In some embodiments of the invention, the acid number of described lubricant oil is not more than 0.5mgKOH/g.Thus, system energy efficiency and the operating reliability of compressor can be improved further.
In some embodiments of the invention, the water content of described lubricant oil is not higher than 200ppm.Thus, system energy efficiency and the operating reliability of compressor can be improved further.
In some embodiments of the invention, the discharge capacity V of described compressor and described lubricant oil meet between kinematical viscosity C 40 DEG C time: 0.1≤C/V≤37.5.Thus, system energy efficiency and the operating reliability of compressor can be improved further.
In another aspect of the present invention, the present invention proposes a kind of chiller plant.According to embodiments of the invention, this chiller plant has rotary compressor described above.Thus, this chiller plant, owing to using above-mentioned compressor, makes this chiller plant have higher efficiency and reliability, thus can significantly improve the satisfaction of client.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of rotary compressor according to an embodiment of the invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
Existing hfc refrigerant generally all arranges in pairs or groups the artificial oils such as alkylbenzene oil, ether oil, ester oil as lubricant oil, but artificial oil price is higher, causes compressor cost higher.Although mineral oil cost is lower, incompatible with hfc refrigerant.If HFC uses mineral oil, the mineral oil of immiscible property can be stagnated in a large number between system condenser and vaporizer, can not return air-conditioning system immediately, thus affects air-conditioning system heat exchange efficiency, causes systematic function low.The present inventor, by trying to explore rotary compressor, is intended to solve defect of the prior art, obtains the rotary compressor with lower cost and higher energy efficiency.
For this reason, in one aspect of the invention, the present invention proposes a kind of rotary compressor.According to embodiments of the invention, with reference to figure 1, rotary compressor comprises housing 100, motor 200 and compressing mechanism 300, wherein, compressing mechanism 300 is located in housing 100, compressing mechanism 300 comprises cylinder 31, eccentric shaft (not shown), piston 32, main bearing 33, supplementary bearing 34 and bent axle 35, main bearing 33 and supplementary bearing 34 are located at the both sides of cylinder 31, eccentric shaft comprises main shaft (not shown), eccentric part (not shown) and countershaft (not shown), be enclosed within outside main bearing 33 on main shaft, be enclosed within outside supplementary bearing 34 on countershaft, be enclosed within eccentric part outside piston 32.According to a particular embodiment of the invention, in housing 100, be packaged with lubricant oil and hfc refrigerant, and containing nanometer additive in lubricant oil.Inventor finds, by adding nanometer additive in lubricant oil, should can operate within the compressor along with hfc refrigerant by the lubricant oil containing nanometer additive, when lubricant oil deposits in condenser and vaporizer, because this nanometer additive has higher heat conductivity, thus the heat exchange efficiency of compressor can not be affected, and then can ensure that this compressor has higher efficiency, this nanometer additive can be evenly distributed between each friction member of compressor along with lubricant oil simultaneously, being equivalent to can rolling bearing for increasing between each friction member, thus improve the efficiency of compressor further, in addition, when friction member produces high temperature, this nanometer additive can at the protective film of friction member Surface Creation one deck densification, thus the wear-resisting property improved between friction member, and then significantly improve the operational reliability of compressor.
According to one embodiment of present invention, the particular type of lubricant oil is also not particularly limited, those skilled in the art can select according to actual needs, and according to a particular embodiment of the invention, lubricant oil can be the lubricant oil of 0.1 ~ 30% for the dissolution rate in hfc refrigerant.Inventor finds, although this class lubricating oil and hfc refrigerant poor compatibility, but its cost is compared comparatively cheap compared with artificial oil, and by adding nanometer additive in this class lubricating oil, effectively can improve the greasy property of this class lubricating oil, thus ensure that this compressor has higher system energy efficiency and operating reliability while the cost significantly reducing compressor.According to concrete example of the present invention, lubricant oil can for being selected from least one in naphthenic mineral oil, alkylbenzene mineral oil and polyatomic alcohol polybasic alcohol ester oil.Thus, improve while further reducing compressor cost this compressor system energy efficiency and operating reliability.
According to still a further embodiment, the particular type of nanometer additive is also not particularly limited, those skilled in the art can select according to actual needs, according to a particular embodiment of the invention, nanometer additive can for being selected from least one in laminated inorganic matter nano particle, metal nanoparticle, borate nano particle, carbonite nano particle, sulfide nanoparticle, oxide nano particles, hydroxide nanoparticles, rare earth compound nano particle and polymer microballoon.Inventor finds, by adding such nanometer additive in lubricant oil, when lubricant oil deposits in condenser and vaporizer, such nanometer additive can ensure that compressor has higher heat exchange efficiency, and then ensure that this compressor has high efficiency, when such distribution of additives is between each friction member of compressor simultaneously, the efficiency of compressor can be improved further, in addition under friction member produces high temperature condition, this nanometer additive can form the comparatively fine and close protective film of one deck on friction member surface, thus the wear-resisting property improved further between friction member, and then improve the operational reliability of compressor.
According to still another embodiment of the invention, the particular type of metal nanoparticle is also not particularly limited, those skilled in the art can select according to actual needs, according to a particular embodiment of the invention, metal nanoparticle is be selected from least one in copper nano particles, silver nano-grain, nano nickel particles and bismuth nano particle, such as can for the Nano composite granules containing copper, silver, nickel and bismuth.Inventor finds, by adding such metal nanoparticle in lubricant oil, when lubricant oil deposits in condenser and vaporizer, because such metal nano additive has high heat exchange efficiency, thus can ensure that compressor has higher heat exchange efficiency, and then ensure that this compressor has high efficiency, when such metal nanoparticle is distributed between each friction member of compressor simultaneously, the efficiency of compressor can be improved further, in addition under friction member produces high temperature condition, this metal nanoparticle can form the very fine and close protective film of one deck on friction member surface, thus the wear-resisting property improved further between friction member, and then improve the operational reliability of compressor.
According to still another embodiment of the invention, the kinematical viscosity of lubricant oil at 40 DEG C is 10 ~ 150mm
2/ s.Inventor finds, by being used by the lubricant oil of this kinematical viscosity collocation hfc refrigerant, can significantly improve the greasy property of compression assembly, thus improve system energy efficiency and the operating reliability of compressor further.
According to still another embodiment of the invention, the acid number of lubricant oil is also not particularly limited, and art technology people can select according to actual needs, and according to a particular embodiment of the invention, the acid number of lubricant oil is not more than 0.5mgKOH/g.Thus, the oil quality of lubricant oil can be significantly improved, thus improve system energy efficiency and the operating reliability of compressor further.
According to still another embodiment of the invention, the water content of lubricant oil is also not particularly limited, and those skilled in the art can select according to actual needs, and according to a particular embodiment of the invention, the water content of lubricant oil is not higher than 200ppm.Thus, the oil quality of lubricant oil can be improved further, thus improve system energy efficiency and the operating reliability of compressor further.
According to still another embodiment of the invention, the discharge capacity V of compressor and lubricant oil meet between kinematical viscosity C 40 DEG C time: 0.1≤C/V≤37.5.Inventor finds, when C/V lower than 0.1 time, lubricant oil is difficult to form oil film within the compressor, to carry out in compression process also to reduce because of dissolving viscosity causing leaking, thus can reduce compressor reliability and refrigerating capacity at the pump housing; When C/V higher than 37.5 time, oil product viscous resistance increases, and causing entering in compressor operation power increases, and then can reduce the efficiency of compressor.
In another aspect of the present invention, the present invention proposes a kind of chiller plant.According to embodiments of the invention, this chiller plant has rotary compressor described above.Concrete, this chiller plant can be air-conditioning, refrigerator or refrigerator-freezer.Thus, this chiller plant, owing to using above-mentioned compressor, makes this chiller plant have higher efficiency and reliability, thus can significantly improve the satisfaction of client.It should be noted that, before be equally applicable to this chiller plant for the feature and advantage described by rotary compressor, do not repeat them here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a rotary compressor, described rotary compressor comprises housing, motor and compressing mechanism, described compressing mechanism comprises cylinder, eccentric shaft, piston, main bearing and supplementary bearing, lubricant oil and hfc refrigerant is packaged with in described housing, it is characterized in that, containing nanometer additive in described lubricant oil.
2. rotary compressor according to claim 1, is characterized in that, the dissolution rate of described lubricant oil in hfc refrigerant is 0.1 ~ 30%.
3. rotary compressor according to claim 2, is characterized in that, described lubricant oil is be selected from least one in naphthenic mineral oil, alkylbenzene mineral oil and polyatomic alcohol polybasic alcohol ester oil.
4. rotary compressor according to claim 2, it is characterized in that, described nanometer additive is be selected from least one in laminated inorganic matter nano particle, metal nanoparticle, borate nano particle, carbonite nano particle, sulfide nanoparticle, oxide nano particles, hydroxide nanoparticles, rare earth compound nano particle and polymer microballoon.
5. rotary compressor according to claim 4, is characterized in that, described metal nanoparticle is be selected from least one in copper nano particles, silver nano-grain, nano nickel particles and bismuth nano particle.
6. rotary compressor according to claim 2, is characterized in that, the kinematical viscosity of described lubricant oil at 40 DEG C is 10 ~ 150mm
2/ s.
7. rotary compressor according to claim 6, is characterized in that, the acid number of described lubricant oil is not more than 0.5mgKOH/g.
8. rotary compressor according to claim 7, is characterized in that, the water content of described lubricant oil is not higher than 200ppm.
9. rotary compressor according to claim 6, is characterized in that, the discharge capacity V of described compressor and described lubricant oil meet between kinematical viscosity C 40 DEG C time: 0.1≤C/V≤37.5.
10. a chiller plant, is characterized in that, comprises the rotary compressor described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510416256.5A CN105041660A (en) | 2015-07-15 | 2015-07-15 | Rotary compressor and refrigerating equipment comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416256.5A CN105041660A (en) | 2015-07-15 | 2015-07-15 | Rotary compressor and refrigerating equipment comprising same |
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| CN105041660A true CN105041660A (en) | 2015-11-11 |
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Citations (6)
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| CN101023155A (en) * | 2005-08-09 | 2007-08-22 | Lg电子株式会社 | Refrigerating machine oil of a compressor |
| CN102477351A (en) * | 2010-11-30 | 2012-05-30 | 李红 | Application technology of nano additive for lubricating oil |
| CN102686695A (en) * | 2009-12-29 | 2012-09-19 | 阿科玛股份有限公司 | Method of selecting refrigerant-lubricant combinations |
| CN103642559A (en) * | 2013-11-15 | 2014-03-19 | 江苏大学 | Molybdenum disulfide-based composite solid lubrication material used for compressor and preparation method thereof |
| CN103820193A (en) * | 2014-02-24 | 2014-05-28 | 广东美芝制冷设备有限公司 | Lubricating oil composition and its application |
| US20150020539A1 (en) * | 2013-07-16 | 2015-01-22 | Samsung Electronics Co., Ltd. | Compressor and air conditioning apparatus using the same |
-
2015
- 2015-07-15 CN CN201510416256.5A patent/CN105041660A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101023155A (en) * | 2005-08-09 | 2007-08-22 | Lg电子株式会社 | Refrigerating machine oil of a compressor |
| CN102686695A (en) * | 2009-12-29 | 2012-09-19 | 阿科玛股份有限公司 | Method of selecting refrigerant-lubricant combinations |
| CN102477351A (en) * | 2010-11-30 | 2012-05-30 | 李红 | Application technology of nano additive for lubricating oil |
| US20150020539A1 (en) * | 2013-07-16 | 2015-01-22 | Samsung Electronics Co., Ltd. | Compressor and air conditioning apparatus using the same |
| CN103642559A (en) * | 2013-11-15 | 2014-03-19 | 江苏大学 | Molybdenum disulfide-based composite solid lubrication material used for compressor and preparation method thereof |
| CN103820193A (en) * | 2014-02-24 | 2014-05-28 | 广东美芝制冷设备有限公司 | Lubricating oil composition and its application |
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Application publication date: 20151111 |