CN204648757U - A kind of oil return apparatus of multi-compressor refrigerating circulation system - Google Patents
A kind of oil return apparatus of multi-compressor refrigerating circulation system Download PDFInfo
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- CN204648757U CN204648757U CN201520337297.0U CN201520337297U CN204648757U CN 204648757 U CN204648757 U CN 204648757U CN 201520337297 U CN201520337297 U CN 201520337297U CN 204648757 U CN204648757 U CN 204648757U
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Abstract
The utility model discloses a kind of oil return apparatus of multi-compressor refrigerating circulation system, comprise condenser, evaporimeter, expansion valve and multiple compressor parallel with one another, described compressor comprises the first compressor, the second compressor and the 3rd compressor, and described condenser, evaporimeter, expansion valve and multiple compressor parallel with one another are by refrigerant pipeline primary Ioops in series; In the utility model, what multiple compressor can pass through primary oil's separator connects and composes a kind of can complementing each other and the oil return apparatus circulated, the demand of multi-compressor refrigerating circulation system to lubricating oil can be reduced, and make the lubrication oil supplying between multi-compressor reach balance, the refrigerant circulation circuit of refrigerating circulation system is located at by main oil eliminator, can carry out the oily detached job of second time, all the other lubricating oil in being returned by refrigerant circulation are separated.
Description
Technical field
The utility model relates to cooling recirculation system field, specifically a kind of oil return apparatus of multi-compressor refrigerating circulation system.
Background technology
Steam compressed refrigerating circulation system is the theory according to Kano freeze cycle (Carnot refrigerating cycle), utilize a kind of heat pump that refrigerant is working media, known refrigerating and air conditioning system is exactly the heat-exchange system manufactured according to this theory, known refrigerating and air conditioning system comprises: compressor, condenser, expansion valve, evaporimeter and liquid-gas separation device, formation refrigerant circulation circuit is connected to each other with refrigerant pipeline between above-mentioned parts, utilize the phase-state change of refrigerant in closed circuit, and then utilize refrigerant to absorb heat at the evaporimeter of the heat absorbing side being located at refrigerating and air conditioning system, the heat that refrigerant absorbs removes by the condenser then through the heat radiation side being located at refrigerating and air conditioning system, and then realize the object reducing indoor temperature under cold air pattern.
Some refrigerating and air conditioning system also adds oil eliminator, enter in refrigerant pipeline in order to avoid the lubricating oil of compressor, the lubricating oil that general refrigeration system and air-conditioning system use also can be described as refrigeration oil (Refrigeration Oil), and the Main Function of refrigeration oil in steam compressed refrigerating circulation system comprises: the friction loss reducing the moving part in compressor; The heat that moving part in compressor produces because of friction is taken away; And compressor internal works is as shaft seal, pad etc., refrigeration oil has sealing function to it, and gaseous coolant can be avoided to leak and refrigerating effect is reduced.Therefore, lubricating oil maintains compressor to run well the important materials that can not be short of.
Known refrigerating and air conditioning system only configures single compressor, therefore its refrigerating capacity is limited, in order to meet the needs of large space refrigeration, a kind of refrigerating and air conditioning system being configured with multiple compressor is suggested then, multiple compressor is arranged at same steam compressed refrigerating circulation system by known technology system in parallel, apparent load needs to control the running number of compressor, and such as multiple compressor operates or the compressor operation of only part simultaneously.In the refrigerating and air conditioning system of single compressor, discharge the lubricating oil of compressor along with refrigerant, same compressor can be got back to together along with refrigerant, therefore there will be the problem of lubricating oil deficiency.In the refrigerating and air conditioning system of compressor with multiple parallel connection, how multiple compressor parallel, to a refrigerant circulation circuit, maintains the lubricating oil that each compressor can remain enough, in other words, how suitably by distribution of lubrication oil to multiple compressor, be the problem that dealer payes attention to.
Utility model content
The purpose of this utility model is the oil return apparatus providing a kind of multi-compressor refrigerating circulation system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of oil return apparatus of multi-compressor refrigerating circulation system, comprise condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another, described compressor comprises the first compressor 51, second compressor 52 and the 3rd compressor 53, and described condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another are by refrigerant pipeline 60 primary Ioops in series, described first compressor 51, second compressor 52 is connected primary oil separator 71a respectively with the oil-out of the 3rd compressor 53, primary oil separator 71b and primary oil separator 71c, and primary oil separator 71a, primary oil separator 71b is connected capillary tube 72a respectively with the oil-out of primary oil separator 71c, capillary tube 72b and capillary tube 72c, primary oil separator 71a, primary oil separator 71b is all connected condenser 10 by refrigerant pipeline 60 with the refrigerant exit of primary oil separator 71c, described capillary tube 72a, capillary tube 72b is connected the second compressor 52 respectively with the other end of capillary tube 72c, the input of the 3rd compressor 53 and the first compressor 51, described second compressor 52, 3rd compressor 53 is connected many siphunculus 41 with the input of the first compressor 51, many siphunculus 41 connect reservoir 42, reservoir 12 connects evaporimeter 30, wherein primary oil's separator of any one compressor is recycled to next compressor through the lubricating oil obtained after carrying out Oil-gas Separation to refrigerant via capillary, and the isolated lubricating oil of primary oil's separator of last compressor is recycled to first compressor after by capillary, a kind of can complementing each other and the oil return apparatus circulated is formed according to this kind of oil return method of salary distribution.By the refrigerant (now for gaseous coolant) of primary oil separator 71a, primary oil separator 71b, primary oil separator 71c then by refrigerant circulation circuit that refrigerant pipeline 60 connects and composes, sequentially complete freeze cycle once by returning to multiple compressor (comprising the first compressor 51, second compressor 52 and the 3rd compressor 53) via siphunculus more than one 41 again after condenser 10, expansion valve 40 and evaporimeter 30, a reservoir 42 can be set between evaporimeter 30 and many siphunculus 41 if desired, in order to be separated the moisture content in refrigerant.
A kind of oil return apparatus of multi-compressor refrigerating circulation system, comprise condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another, described compressor comprises the first compressor 51, second compressor 52 and the 3rd compressor 53, and described condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another are by refrigerant pipeline 60 primary Ioops in series, described first compressor 51, second compressor 52 is connected primary oil separator 71a respectively with the oil-out of the 3rd compressor 53, primary oil separator 71b and primary oil separator 71c, and primary oil separator 71a, primary oil separator 71b is connected capillary tube 72a respectively with the oil-out of primary oil separator 71c, capillary tube 72b and capillary tube 72c, primary oil separator 71a, primary oil separator 71b is all connected main oil eliminator 80 by refrigerant pipeline 60 with the refrigerant exit of primary oil separator 71c, described main oil eliminator 80 connects condenser 10, and main oil eliminator 80 connects many siphunculus 41 by capillary 81, described capillary tube 72a, capillary tube 72b is connected the second compressor 52 respectively with the other end of capillary tube 72c, the input of the 3rd compressor 53 and the first compressor 51, described second compressor 52, 3rd compressor 53 is connected many siphunculus 41 with the input of the first compressor 51, many siphunculus 41 connect reservoir 42, reservoir 12 connects evaporimeter 30, wherein primary oil's separator of any one compressor is recycled to next compressor through the lubricating oil obtained after carrying out Oil-gas Separation to refrigerant via capillary, and the isolated lubricating oil of primary oil's separator of last compressor is recycled to first compressor after by capillary, a kind of can complementing each other and the oil return apparatus circulated is formed according to this kind of oil return method of salary distribution.By the refrigerant (now for gaseous coolant) of primary oil separator 71a, primary oil separator 71b, primary oil separator 71c then by refrigerant circulation circuit that refrigerant pipeline 60 connects and composes, sequentially complete freeze cycle once by returning to multiple compressor (comprising the first compressor 51, second compressor 52 and the 3rd compressor 53) via siphunculus more than one 41 again after condenser 10, expansion valve 40 and evaporimeter 30, a reservoir 42 can be set between evaporimeter 30 and many siphunculus 41 if desired, in order to be separated the moisture content in refrigerant.
A kind of oil return apparatus of multi-compressor refrigerating circulation system, comprise condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another, described compressor comprises the first compressor 51, second compressor 52 and the 3rd compressor 53, and described condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another are by refrigerant pipeline 60 primary Ioops in series, described first compressor 51, second compressor 52 is connected primary oil separator 71a respectively with the oil-out of the 3rd compressor 53, primary oil separator 71b and primary oil separator 71c, and primary oil separator 71a, primary oil separator 71b is connected capillary tube 72a respectively with the oil-out of primary oil separator 71c, capillary tube 72b and capillary tube 72c, primary oil separator 71a, primary oil separator 71b is all connected main oil eliminator 80 by refrigerant pipeline 60 with the refrigerant exit of primary oil separator 71c, described main oil eliminator 80 connects condenser 10, and main oil eliminator 80 connects many siphunculus 41 by capillary 81, described capillary tube 72a, capillary tube 72b is connected the 3rd compressor 53 respectively with the other end of capillary tube 72c, the input of the first compressor 51 and the second compressor 52, described second compressor 52, 3rd compressor 53 is connected many siphunculus 41 with the input of the first compressor 51, many siphunculus 41 connect reservoir 42, reservoir 12 connects evaporimeter 30, wherein primary oil's separator of any one compressor is recycled to next compressor through the lubricating oil obtained after carrying out Oil-gas Separation to refrigerant via capillary, and the isolated lubricating oil of primary oil's separator of last compressor is recycled to first compressor after by capillary, a kind of can complementing each other and the oil return apparatus circulated is formed according to this kind of oil return method of salary distribution.
Further, the quantity of described compressor is 3 or is greater than 3.
Compared with prior art, the beneficial effects of the utility model are: in the utility model, what multiple compressor can pass through primary oil's separator connects and composes a kind of can complementing each other and the oil return apparatus circulated, the demand of multi-compressor refrigerating circulation system to lubricating oil can be reduced, and make the lubrication oil supplying between multi-compressor reach balance, the refrigerant circulation circuit of refrigerating circulation system is located at by main oil eliminator, can carry out the oily detached job of second time, all the other lubricating oil in being returned by refrigerant circulation are separated.
Accompanying drawing explanation
Fig. 1 is the first structural representation of the oil return apparatus of a kind of multi-compressor refrigerating circulation system of the utility model.
Fig. 2 is the second structural representation of the oil return apparatus of a kind of multi-compressor refrigerating circulation system of the utility model.
Fig. 3 is the third structural representation of the oil return apparatus of a kind of multi-compressor refrigerating circulation system of the utility model.
In figure: 10-condenser, 30-evaporimeter, 40-expansion valve, the many siphunculus of 41-, 42-reservoir, 51-first compressor, 52-second compressor, 53-the 3rd compressor, 60-refrigerant pipeline, 71a-primary oil separator, 71b-primary oil separator, 71c-primary oil separator, 72a-capillary, 72b-capillary, 72c-capillary, the main oil eliminator of 80-, 81-capillary.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment 1, a kind of oil return apparatus of multi-compressor refrigerating circulation system, comprise condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another, described compressor comprises the first compressor 51, second compressor 52 and the 3rd compressor 53, and described condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another are by refrigerant pipeline 60 primary Ioops in series, described first compressor 51, second compressor 52 is connected primary oil separator 71a respectively with the oil-out of the 3rd compressor 53, primary oil separator 71b and primary oil separator 71c, and primary oil separator 71a, primary oil separator 71b is connected capillary tube 72a respectively with the oil-out of primary oil separator 71c, capillary tube 72b and capillary tube 72c, primary oil separator 71a, primary oil separator 71b is all connected condenser 10 by refrigerant pipeline 60 with the refrigerant exit of primary oil separator 71c, described capillary tube 72a, capillary tube 72b is connected the second compressor 52 respectively with the other end of capillary tube 72c, the input of the 3rd compressor 53 and the first compressor 51, described second compressor 52, 3rd compressor 53 is connected many siphunculus 41 with the input of the first compressor 51, many siphunculus 41 connect reservoir 42, reservoir 12 connects evaporimeter 30, wherein primary oil's separator of any one compressor is recycled to next compressor through the lubricating oil obtained after carrying out Oil-gas Separation to refrigerant via capillary, and the isolated lubricating oil of primary oil's separator of last compressor is recycled to first compressor after by capillary, a kind of can complementing each other and the oil return apparatus circulated is formed according to this kind of oil return method of salary distribution.By the refrigerant (now for gaseous coolant) of primary oil separator 71a, primary oil separator 71b, primary oil separator 71c then by refrigerant circulation circuit that refrigerant pipeline 60 connects and composes, sequentially complete freeze cycle once by returning to multiple compressor (comprising the first compressor 51, second compressor 52 and the 3rd compressor 53) via siphunculus more than one 41 again after condenser 10, expansion valve 40 and evaporimeter 30, a reservoir 42 can be set between evaporimeter 30 and many siphunculus 41 if desired, in order to be separated the moisture content in refrigerant.
Refer to Fig. 2, in the utility model embodiment 2, a kind of oil return apparatus of multi-compressor refrigerating circulation system, comprise condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another, described compressor comprises the first compressor 51, second compressor 52 and the 3rd compressor 53, and described condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another are by refrigerant pipeline 60 primary Ioops in series, described first compressor 51, second compressor 52 is connected primary oil separator 71a respectively with the oil-out of the 3rd compressor 53, primary oil separator 71b and primary oil separator 71c, and primary oil separator 71a, primary oil separator 71b is connected capillary tube 72a respectively with the oil-out of primary oil separator 71c, capillary tube 72b and capillary tube 72c, primary oil separator 71a, primary oil separator 71b is all connected main oil eliminator 80 by refrigerant pipeline 60 with the refrigerant exit of primary oil separator 71c, described main oil eliminator 80 connects condenser 10, and main oil eliminator 80 connects many siphunculus 41 by capillary 81, described capillary tube 72a, capillary tube 72b is connected the second compressor 52 respectively with the other end of capillary tube 72c, the input of the 3rd compressor 53 and the first compressor 51, described second compressor 52, 3rd compressor 53 is connected many siphunculus 41 with the input of the first compressor 51, many siphunculus 41 connect reservoir 42, reservoir 12 connects evaporimeter 30, wherein primary oil's separator of any one compressor is recycled to next compressor through the lubricating oil obtained after carrying out Oil-gas Separation to refrigerant via capillary, and the isolated lubricating oil of primary oil's separator of last compressor is recycled to first compressor after by capillary, a kind of can complementing each other and the oil return apparatus circulated is formed according to this kind of oil return method of salary distribution.By the refrigerant (now for gaseous coolant) of primary oil separator 71a, primary oil separator 71b, primary oil separator 71c then by refrigerant circulation circuit that refrigerant pipeline 60 connects and composes, sequentially complete freeze cycle once by returning to multiple compressor (comprising the first compressor 51, second compressor 52 and the 3rd compressor 53) via siphunculus more than one 41 again after condenser 10, expansion valve 40 and evaporimeter 30, a reservoir 42 can be set between evaporimeter 30 and many siphunculus 41 if desired, in order to be separated the moisture content in refrigerant.
Refer to Fig. 3, in the utility model embodiment 3, a kind of oil return apparatus of multi-compressor refrigerating circulation system, comprise condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another, described compressor comprises the first compressor 51, second compressor 52 and the 3rd compressor 53, and described condenser 10, evaporimeter 30, expansion valve 40 and multiple compressor parallel with one another are by refrigerant pipeline 60 primary Ioops in series, described first compressor 51, second compressor 52 is connected primary oil separator 71a respectively with the oil-out of the 3rd compressor 53, primary oil separator 71b and primary oil separator 71c, and primary oil separator 71a, primary oil separator 71b is connected capillary tube 72a respectively with the oil-out of primary oil separator 71c, capillary tube 72b and capillary tube 72c, primary oil separator 71a, primary oil separator 71b is all connected main oil eliminator 80 by refrigerant pipeline 60 with the refrigerant exit of primary oil separator 71c, described main oil eliminator 80 connects condenser 10, and main oil eliminator 80 connects many siphunculus 41 by capillary 81, described capillary tube 72a, capillary tube 72b is connected the 3rd compressor 53 respectively with the other end of capillary tube 72c, the input of the first compressor 51 and the second compressor 52, described second compressor 52, 3rd compressor 53 is connected many siphunculus 41 with the input of the first compressor 51, many siphunculus 41 connect reservoir 42, reservoir 12 connects evaporimeter 30, wherein primary oil's separator of any one compressor is recycled to next compressor through the lubricating oil obtained after carrying out Oil-gas Separation to refrigerant via capillary, and the isolated lubricating oil of primary oil's separator of last compressor is recycled to first compressor after by capillary, a kind of can complementing each other and the oil return apparatus circulated is formed according to this kind of oil return method of salary distribution.
Further, the quantity of described compressor is 3 or is greater than 3.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. the oil return apparatus of a multi-compressor refrigerating circulation system, it is characterized in that, comprise condenser (10), evaporimeter (30), expansion valve (40) and multiple compressor parallel with one another, described compressor comprises the first compressor (51), the second compressor (52) and the 3rd compressor (53), and described condenser (10), evaporimeter (30), expansion valve (40) and multiple compressor parallel with one another are by refrigerant pipeline (60) primary Ioops in series, described first compressor (51), second compressor (52) is connected primary oil's separator (71a) respectively with the oil-out of the 3rd compressor (53), primary oil's separator (71b) and primary oil's separator (71c), and primary oil's separator (71a), primary oil's separator (71b) is connected capillary tube (72a) respectively with the oil-out of primary oil's separator (71c), capillary tube (72b) and capillary tube (72c), primary oil's separator (71a), primary oil's separator (71b) is all connected condenser (10) by refrigerant pipeline (60) with the refrigerant exit of primary oil's separator (71c), described capillary tube (72a), capillary tube (72b) is connected the second compressor (52) respectively with the other end of capillary tube (72c), the input of the 3rd compressor (53) and the first compressor (51), described second compressor (52), 3rd compressor (53) is connected many siphunculus (41) with the input of the first compressor (51), many siphunculus (41) connect reservoir (42), reservoir (12) connects evaporimeter (30).
2. the oil return apparatus of a multi-compressor refrigerating circulation system, it is characterized in that, comprise condenser (10), evaporimeter (30), expansion valve (40) and multiple compressor parallel with one another, described compressor comprises the first compressor (51), the second compressor (52) and the 3rd compressor (53), and described condenser (10), evaporimeter (30), expansion valve (40) and multiple compressor parallel with one another are by refrigerant pipeline (60) primary Ioops in series, described first compressor (51), second compressor (52) is connected primary oil's separator (71a) respectively with the oil-out of the 3rd compressor (53), primary oil's separator (71b) and primary oil's separator (71c), and primary oil's separator (71a), primary oil's separator (71b) is connected capillary tube (72a) respectively with the oil-out of primary oil's separator (71c), capillary tube (72b) and capillary tube (72c), primary oil's separator (71a), primary oil's separator (71b) is all connected main oil eliminator (80) by refrigerant pipeline (60) with the refrigerant exit of primary oil's separator (71c), described main oil eliminator (80) connects condenser (10), and main oil eliminator (80) connects many siphunculus (41) by capillary (81), described capillary tube (72a), capillary tube (72b) is connected the second compressor (52) respectively with the other end of capillary tube (72c), the input of the 3rd compressor (53) and the first compressor (51), described second compressor (52), 3rd compressor (53) is connected many siphunculus (41) with the input of the first compressor (51), many siphunculus (41) connect reservoir (42), reservoir (12) connects evaporimeter (30).
3. the oil return apparatus of a multi-compressor refrigerating circulation system, it is characterized in that, comprise condenser (10), evaporimeter (30), expansion valve (40) and multiple compressor parallel with one another, described compressor comprises the first compressor (51), the second compressor (52) and the 3rd compressor (53), and described condenser (10), evaporimeter (30), expansion valve (40) and multiple compressor parallel with one another are by refrigerant pipeline (60) primary Ioops in series, described first compressor (51), second compressor (52) is connected primary oil's separator (71a) respectively with the oil-out of the 3rd compressor (53), primary oil's separator (71b) and primary oil's separator (71c), and primary oil's separator (71a), primary oil's separator (71b) is connected capillary tube (72a) respectively with the oil-out of primary oil's separator (71c), capillary tube (72b) and capillary tube (72c), primary oil's separator (71a), primary oil's separator (71b) is all connected condenser (10) by refrigerant pipeline (60) with the refrigerant exit of primary oil's separator (71c), described capillary tube (72a), capillary tube (72b) and the other end of capillary tube (72c) are connected the 3rd compressor (53) respectively, the input of the first compressor (51) and the second compressor (52), described second compressor (52), 3rd compressor (53) is connected many siphunculus (41) with the input of the first compressor (51), many siphunculus (41) connect reservoir (42), reservoir (12) connects evaporimeter (30).
4. the oil return apparatus of the multi-compressor refrigerating circulation system according to claim 1 or 2 or 3, is characterized in that, the quantity of described compressor is 3 or is greater than 3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520337297.0U CN204648757U (en) | 2015-05-22 | 2015-05-22 | A kind of oil return apparatus of multi-compressor refrigerating circulation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520337297.0U CN204648757U (en) | 2015-05-22 | 2015-05-22 | A kind of oil return apparatus of multi-compressor refrigerating circulation system |
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| CN204648757U true CN204648757U (en) | 2015-09-16 |
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| CN201520337297.0U Expired - Fee Related CN204648757U (en) | 2015-05-22 | 2015-05-22 | A kind of oil return apparatus of multi-compressor refrigerating circulation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021063266A1 (en) * | 2019-09-30 | 2021-04-08 | 约克（无锡）空调冷冻设备有限公司 | Load balancing method for two compressors |
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2015
- 2015-05-22 CN CN201520337297.0U patent/CN204648757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021063266A1 (en) * | 2019-09-30 | 2021-04-08 | 约克（无锡）空调冷冻设备有限公司 | Load balancing method for two compressors |
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