CN103486043A - Compressor and refrigeration equipment with compressor - Google Patents
Compressor and refrigeration equipment with compressor Download PDFInfo
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- CN103486043A CN103486043A CN201310377495.5A CN201310377495A CN103486043A CN 103486043 A CN103486043 A CN 103486043A CN 201310377495 A CN201310377495 A CN 201310377495A CN 103486043 A CN103486043 A CN 103486043A
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Abstract
The invention provides a compressor and refrigeration equipment with the compressor. The compressor adopts an R32 refrigerant and polyol ester oil, wherein the polyol ester oil is at least one of branched chain type polyol ester oil and straight chain type polyol ester oil; the viscosity of the polyol ester oil at 40 DEG C is 32-96mm<2>/s; the content of an antiwear additive in the polyol ester oil is 1-3.5wt%. The compressor has good running stability and comprehensive performance.
Description
Technical field
The present invention relates to compressor field, particularly, the present invention relates to compressor and there is the chiller plant of this compressor.
Background technique
The R32 of one of refrigeration agent is paid close attention to by industry always as an alternative.Its GWP is 675, is only R410A(GWP2100) approximately 1/3rd.Its safety class is A2L, flammable well below carbon-hydrogen refrigerant R290.So the product of application R32 refrigeration agent, in marketing and on the acceptance level of market, be better than R290 refrigeration agent product.
The operating pressure ratio R410A refrigeration agent of R32 refrigeration agent is high, and operating temperature is also high than R410A; The fluorine-containing constituent content of R32 refrigeration agent is lower than R410A refrigeration agent; The molecular weight of R32 refrigeration agent is smaller, only having 52(R410A is 78), affected lubricant oil in adhesive quality of metal surface etc., when these all make compressor with rolling rotor use the R32 refrigeration agent than the R410A refrigeration agent, the parts depreciation of compressing mechanism has more easily occurred.
Improve the lubrication effect of compressor with rolling rotor when using the R32 refrigeration agent, except the machine oil characteristic of needs improvement lubricant oil, also need to, in lubricant oil, use antiwear additive.And when meet using the R32 refrigeration agent to the greasy property high request, the lubricant oil of using with respect to the R410A refrigeration agent, the use amount of the antiwear additive of the lubricant oil that the R32 refrigeration agent is used is more than R410A, to improve the greasy property of lubricant oil.Yet, the molecular weight of R32 refrigeration agent is smaller, its aggressiveness to other materials is stronger, under high temperature, high pressure, easily make antiwear additive in lubricant oil decompose that (this is also that the R32 refrigeration agent is while being used with respect to the R410A refrigeration agent, one of reason that the use amount of antiwear additive is more than R410A), the lubricity of the lubricant oil of reduction.
Therefore, the research of raising compressor operating performance also needs further deeply.
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, the chiller plant that one object of the present invention is to propose a kind of compressor and has this compressor, this compressor has good operation stability and combination property.
In one aspect of the invention, the present invention proposes a kind of compressor, according to embodiments of the invention, described compressor adopts R32 refrigeration agent and polyatomic alcohol polybasic alcohol ester oil, wherein, at least one that described polyatomic alcohol polybasic alcohol fatty oil is a chain type polyol resin oil and direct-connected polyatomic alcohol polybasic alcohol fatty oil, the viscosity of described polyatomic alcohol polybasic alcohol fatty oil in the time of 40 ℃ is 32～96mm
2/ s, the antiwear additive content in described polyatomic alcohol polybasic alcohol fatty oil is 1～3.5 % by weight.In order to make this lubricant oil can guarantee that compressor in use has certain stability.
In addition, compressor according to the abovementioned embodiments of the present invention can also have following additional technical characteristics:
According to embodiments of the invention, described compressor comprises slide plate, and wherein, described slide plate comprises slide plate matrix and wearing course; Described wearing course is formed on the surface of described slide plate matrix.Can further improve the operation stability of compressor thus.
According to embodiments of the invention, described wearing course is to process and the DLC coating is processed that at least one forms by nitriding treatment, CrN coating.In order to improve the wear resistance of compressor sliding blade.
According to embodiments of the invention, described wearing course comprises nitride layer, CrN coating, DLC coating, Cr-DLC composite coating or Cr-CrC-DLC composite coating.Can further improve the wear resistance of slide plate thus, in order to further improve the stability of press.
According to embodiments of the invention, the thickness of described nitride layer is at least 3 microns; The thickness of described CrN coating is 3～15 microns; The thickness of described DLC coating is 0.5～5 micron; In described Cr-DLC composite coating, the thickness of Cr layer is that 0.3～3 micron, the thickness of DLC layer are 0.5～5 micron; And in described Cr-CrC-DLC composite coating, the thickness of Cr layer is that 0.3～3 micron, the thickness of CrC layer are that 0.3～3 micron, the thickness of DLC layer are 0.5～5 micron.Make thus between coating and matrix and there is good combination force, avoid declining of coating, in order to further improve the wear resistance of slide plate.
According to embodiments of the invention, the silicon that contains 0～45 % by weight in described wearing course.Can utilize thus element silicon to regulate the combination force between coating and matrix, in order to further improve the wear resistance of slide plate.
According to embodiments of the invention, described compressor is closed type rolling rotor compressor.
According to embodiments of the invention, described antiwear additive is at least one in phosphoric acid derivative class antiwear additive, sulfur compound class antiwear additive and oxycompound class antiwear additive.Can improve the wear resistance of slide plate thus, in order to further improve compressor stability.
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 comprises above-mentioned compressor.Can further improve the combination property of chiller plant thus.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Embodiment
The embodiment who the following describes is exemplary, is intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
The inventor completes of the present invention by following discovery:
When compressor uses R32 as refrigerant usually, the R32 molecular weight is little, affects the adhesive quality of lubricant oil in metal surface, makes the inner body of compressor more easy to wear.Therefore, usually can select to improve the content of antiwear additive in lubricant oil, in order to maintain good greasy property as far as possible.Operating temperature while simultaneously adopting R32 as refrigerant is higher again, the antiwear additive in lubricant oil easily decomposes under High Temperature High Pressure, in order to make up the antiwear additive of having cut down, needs further to improve the addition of antiwear additive.In order to maintain the greasy property of lubricant oil.Therefore it has been generally acknowledged that the antiwear additive that adds high level can significantly improve the wear resistance of the internal component of compressor.Yet, the present inventor's discovery, too much antiwear additive easily decomposes under the environment of High Temperature High Pressure, and the acidic materials that produce in decomposition process can cause oil product to worsen, and can reduce on the contrary the lubricity of lubricant oil.That is to say, the increase of antiwear additive use amount, make the probability of lubricant oil stability decreases increase on the contrary, thereby make the greasy property of oil product worsen, oil product itself deteriorated (as carbonization etc.) even.
For this reason, aspect first, the present invention proposes a kind of compressor of the present invention.According to embodiments of the invention, this compressor adopts R32 refrigeration agent and polyatomic alcohol polybasic alcohol ester oil, wherein, at least one that the polyatomic alcohol polybasic alcohol fatty oil is a chain type polyol resin oil and direct-connected polyatomic alcohol polybasic alcohol fatty oil, the viscosity of polyatomic alcohol polybasic alcohol fatty oil in the time of 40 ℃ is 32～96mm
2/ s, the antiwear additive content in the polyatomic alcohol polybasic alcohol fatty oil is 1～3.5 % by weight.By controlling the antiwear additive that adds above-mentioned content in lubricant oil, can effectively guarantee the stability of lubricant oil and compressor thus.According to a particular embodiment of the invention, above-mentioned compressor can effectively be avoided antiwear additive too much to decompose and cause lubricants performance decline, and the acidic materials that decomposition produces cause oil product to worsen.According to a particular embodiment of the invention, adopt the compressor of above-mentioned lubricant oil to be particularly suited for take R32 as refrigerant, can further improve compressor stability in use thus.
Antiwear additive too high levels in compressor lubricant oil, easily decompose under High Temperature High Pressure, make the greasy property of lubricant oil worsen, yet in lubricant oil, antiwear additive content is too low, make compressor sliding blade and piston easily be worn, finally all have a strong impact on the stability of compressor.By controlling in lubricant oil antiwear additive in above-mentioned content range, can effectively avoid the too much or very few greasy property to lubricant oil of antiwear additive to impact.Adopt thus the lubricant oil of the above embodiment of the present invention can significantly improve the greasy property of lubricant oil, reach the purpose of the stability that improves compressor.
The acid number, the colourity that add compressor lubricant oil after 2000 hours in operation of different content antiwear additive by mensuration, and compressor crank shaft external diameter consumption, measurement result is as shown in table 1, as can be seen from Table 1, adopt the crankshaft external diameter abrasion loss of the compressor of the lubricant oil that R32 refrigeration agent and antiwear additive content are 1 % by weight and 3.5 % by weight to be starkly lower than the crankshaft external diameter abrasion loss of the compressor that adopts the lubricant oil that R32 refrigeration agent and antiwear additive content are 0.70 % by weight and 5 % by weight, abrasion loss take that to be not more than 2 μ m be qualification determination usually.And the acid number of lubricant oil and chromatic value also less (wherein produce less acidic materials because the lubricant oil that adds less antiwear additive decomposes, therefore make the acid number of 0.70 % by weight antiwear additive lower), illustrate in lubricant oil that the antiwear additive that contains 1 % by weight and 3.5 % by weight decomposes the acidic materials that produce few, it is also less that other impurity produce.Therefore adopt the lubricant oil that R32 refrigeration agent and antiwear additive content are 1～3.5 % by weight can effectively improve the stability of lubricant oil and the wear resistance of slide plate.
Table 1
According to one embodiment of present invention, above-mentioned compressor also comprises slide plate.According to a particular embodiment of the invention, this slide plate can comprise slide plate matrix and wearing course, and wearing course is formed on the surface of slide plate matrix.Can further improve the wear resistance of slide plate thus, in order to further improve the stability of compressor.According to a particular embodiment of the invention, this slide plate can adopt the high speed steel of high hardness, high wear resistance and high-fire resistance or stainless steel material as the slide plate matrix, and forms wearing course on its surface.This slide plate can, not needing in the lubricant oil situation of too much antiwear additive to adopt antiwear additive content to be not more than the lubricant oil of 3.5 % by weight, still can guarantee the reliability of slide plate, in order to further improve the stability of compressor thus.
According to one embodiment of present invention, the wearing course of above-mentioned slide plate can form by any mode.According to a particular embodiment of the invention, at least one mode that wearing course can be processed by nitriding treatment, the processing of CrN coating and DLC coating forms.
According to a particular embodiment of the invention, can carry out nitriding treatment to the slide plate of high speed steel substrate, in order to form nitride layer on the surface of high speed steel substrate, concrete grammar can comprise quenching and annealing.According to a particular embodiment of the invention, the thickness of nitride layer also is not particularly limited, and according to concrete example of the present invention, the thickness of nitride layer can be at least 3 microns.Can further improve thus wear resistance, fatigue resistance, corrosion resistance and the resistant to elevated temperatures characteristic of slide plate.According to a particular embodiment of the invention, above-mentionedly by the slide plate hardness after nitriding treatment, can reach HRC56～72, surface hardness can reach Hv1100～1400.
According to a particular embodiment of the invention, can also carry out to the slide plate of high speed steel or stainless steel base the processing of CrN coating, in order to form the CrN coating at its matrix surface.According to concrete example of the present invention, the concrete grammar that the CrN coating is processed also is not particularly limited, and can comprise and quenching and annealing.According to concrete example of the present invention, the thickness of this CrN coating is not subject to special standby restriction, and according to concrete example of the present invention, the CrN coating can be 3～15 microns, can further improve thus the wear resistance of slide plate.There is stronger combination force between the above-mentioned matrix by the slide plate after the processing of CrN coating and wearing course, be specially and be greater than 15N, can effectively avoid thus coating to decline.According to a particular embodiment of the invention, the hardness of above-mentioned high speed steel substrate slide plate after the CrN coating is processed can reach HRC56～72, and the hardness of stainless steel base slide plate can reach HRC40～60, and surface hardness all can reach Hv1500～2200.Process hardness, wear resistance, corrosion resistance and the high temperature oxidation resistance that can further improve slide plate through the CrN coating thus.
According to a particular embodiment of the invention, can also carry out the processing of DLC coating by the slide plate to high speed steel or stainless steel base, in order to form the DLC coating on its surface.According to concrete example of the present invention, the concrete grammar that the DLC coating is processed also is not particularly limited, and can comprise and quenching and annealing.According to concrete example of the present invention, the thickness of this DLC coating also is not particularly limited, and according to concrete example of the present invention, the DLC coating can be 0.5～5 micron, can further improve thus the wear resistance of slide plate.There is stronger combination force between the above-mentioned matrix by the slide plate after the processing of DLC coating and wearing course, be specially and be greater than 15N, can effectively avoid thus coating to decline.According to a particular embodiment of the invention, the hardness of the high speed steel substrate slide plate after the DLC coating is processed can reach HRC56～72, the hardness of stainless steel base slide plate can reach HRC40～60, and the DLC coating hardness reaches Hv2000～4000, adopt thus the DLC coating to process the wear resistance that can significantly strengthen the slide plate matrix, in order to improve the stability of compression.
According to one embodiment of present invention, the wearing course that above-mentioned slide plate comprises can also be the Cr-DLC composite coating, form the method for this coating and be not particularly limited, according to a particular embodiment of the invention, can before processing, the DLC coating at first form the Cr layer on the surface of slide plate matrix, further the slide plate of effects on surface formation Cr layer carries out the processing of DLC coating again, in order to form the DLC coating at the outer surface of its Cr layer, completes thus the preparation of Cr-DLC composite coating.According to a particular embodiment of the invention, by increasing internal stress that the Cr layer can effectively discharge the DLC coating to improve the combination force of matrix and DLC layer between matrix and DLC coating, the Cr-DLC composite coating has stronger wear resistance than the DLC coating thus.The hardness of Cr layer, between metal base and DLC coating, has good relay as transition layer and base material and DLC, in order to further prevent that DLC layer and matrix from declining.Can further improve wear resistance and the hardness of slide plate thus.According to a particular embodiment of the invention, Cr layer in above-mentioned Cr-DLC composite coating and the thickness of DLC layer also are not particularly limited, according to concrete example of the present invention, in the Cr-DLC composite coating, the thickness of Cr layer is that 0.3～3 micron, the thickness of DLC layer are 0.5～5 micron, can further improve thus wear resistance and the hardness of slide plate.
According to one embodiment of present invention, the wearing course that above-mentioned slide plate comprises can also be the Cr-CrC-DLC composite coating, form the method for this coating and be not particularly limited, according to a particular embodiment of the invention, form the CrC layer between Cr layer that can be in the Cr-DLC composite coating and DLC layer, can further improve the combination force of slide plate matrix and DLC layer thus, in order to further prevent that DLC layer and matrix from declining, in order to further improve the wear resistance, hardness etc. of slide plate.According to a particular embodiment of the invention, in the Cr-CrC-DLC composite coating, the thickness of each layer is not subject to special standby restriction, according to a particular embodiment of the invention, in the Cr-CrC-DLC composite coating, the thickness of Cr layer is that 0.3～3 micron, the thickness of CrC layer are that 0.3～3 micron, the thickness of DLC layer are 0.5～5 micron.Make thus between coating and matrix and there is good combination force, in order to avoid declining of coating.
According to one embodiment of present invention, in above-mentioned wearing course, can also contain the silicon of 0～45 % by weight.Thus by add appropriate silicon in wearing course, can effectively eliminate the interfacial tension between wearing course and matrix two-phase, thereby improve the combination force effect between wearing course and matrix, thereby more effectively avoid declining of wearing course, in order to further improve the wear resistance of slide plate.
The slide plate with CrN and DLC coating of the mensuration embodiment of the present invention and the wear resistance without the coating slide plate, the results are shown in Table 2, adopt the compressor of the polyol Ester Lubricating Oil that R32 refrigeration agent and antiwear additive content are 1～3.5 % by weight to adopt at the same time the slide plate abrasion loss of following different slide plate after moving 2000 hours found that, the abrasion loss of the slide plate of the CrN of having of the present invention or DLC coating all obviously is better than the prior art slide plate, and usually abrasion loss take that to be not more than 2 μ m be qualification determination.Compressor therefore of the present invention adopts good lubricant oil and refrigerant composition earl august eugene lund ian robert and the stronger slide plate of wear resistance of greasy property, can significantly improve thus the combination property of compressor.
Table 2
According to one embodiment of present invention, above-mentioned compressor can be closed type rolling rotor compressor.Closed type rolling rotor compressor adopts the slide plate of the above embodiment of the present invention, the slide plate that there is nitride layer, CrN coating, DLC coating, Cr-DLC composite coating and Cr-CrC-DLC composite coating, and antiwear additive is not more than the lubricant oil of 3.5 % by weight, can further improve thus stability and the combination property of compressor.
According to one embodiment of present invention, the particular type of antiwear additive being not particularly limited in above-mentioned lubricant oil, according to a particular embodiment of the invention, in above-mentioned lubricant oil antiwear additive can in phosphoric acid derivative class antiwear additive, sulfur compound class antiwear additive and oxycompound class antiwear additive at least one.Thus by adding antiwear additive to improve the wear resistance of slide plate and the stability of compressor in compressor lubricant oil, in order to further improve the combination property 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 comprises above-mentioned compressor.Because above-mentioned compressor has the good lubricant oil of greasy property and the stronger slide plate of antiwear property makes compressor have good stability, therefore, adopt the above-mentioned high performance compressor that has, can significantly improve the comprehensive refrigeration performance of chiller plant, in order to further improve the working life of refrigerating efficiency and the chiller plant of chiller plant.According to embodiments of the invention, the example of chiller plant can comprise air-conditioning, refrigerator, refrigerating machine etc.The description of the lubricant oil that front comprises about compressor and the feature and advantage of slide plate, still be applicable to this chiller plant, do not repeat them here.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiments or example.
Although the above has illustrated and has described embodiments of the invention, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art is not in the situation that break away from principle of the present invention and aim can be changed above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (9)
1. a compressor, is characterized in that, described compressor adopts R32 refrigeration agent and polyatomic alcohol polybasic alcohol ester oil,
Wherein, at least one that described polyatomic alcohol polybasic alcohol fatty oil is a chain type polyol resin oil and direct-connected polyatomic alcohol polybasic alcohol fatty oil, described polyatomic alcohol polybasic alcohol fatty oil is 32～96mm the viscosity of 40 degrees centigrade
2/ s, the antiwear additive content in described polyatomic alcohol polybasic alcohol fatty oil is 1～3.5 % by weight.
2. compressor according to claim 1, is characterized in that, described compressor comprises slide plate, and described slide plate comprises:
The slide plate matrix; With
Wearing course, described wearing course is formed on the surface of described slide plate matrix.
3. compressor according to claim 2, is characterized in that, described wearing course is to process and the DLC coating is processed that at least one forms by nitriding treatment, CrN coating.
4. compressor according to claim 2, is characterized in that, described wearing course comprises nitride layer, CrN coating, DLC coating, Cr-DLC composite coating or Cr-CrC-DLC composite coating.
5. compressor according to claim 4, is characterized in that,
The thickness of described nitride layer is at least 3 microns;
The thickness of described CrN coating is 3～15 microns;
The thickness of described DLC coating is 0.5～5 micron;
In described Cr-DLC composite coating, the thickness of Cr layer is that 0.3～3 micron, the thickness of DLC layer are 0.5～5 micron; And
In described Cr-CrC-DLC composite coating, the thickness of Cr layer is that 0.3～3 micron, the thickness of CrC layer are that 0.3～3 micron, the thickness of DLC layer are 0.5～5 micron.
6. compressor according to claim 2, is characterized in that, the silicon that contains 0～45 % by weight in described wearing course.
7. compressor according to claim 1, is characterized in that, described compressor is closed type rolling rotor compressor.
8. compressor according to claim 1, is characterized in that, described antiwear additive is at least one in phosphorous derivant class antiwear additive, sulfur compound class antiwear additive and oxycompound class antiwear additive.
9. a chiller plant, is characterized in that, comprises the described compressor of claim 1-8 any one.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041649A (en) * | 2015-07-09 | 2015-11-11 | 广东美芝制冷设备有限公司 | Compressor and air conditioning system with same |
| US10030207B2 (en) | 2014-07-11 | 2018-07-24 | Toyota Jidosha Kabushiki Kaisha | Sliding machine |
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| CN103486043B (en) | 2016-08-10 |
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