CN104990307A - Air conditioner, compression module, and compression module group - Google Patents
Air conditioner, compression module, and compression module group Download PDFInfo
- Publication number
- CN104990307A CN104990307A CN201510474017.5A CN201510474017A CN104990307A CN 104990307 A CN104990307 A CN 104990307A CN 201510474017 A CN201510474017 A CN 201510474017A CN 104990307 A CN104990307 A CN 104990307A
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- Prior art keywords
- compression module
- oil
- compressor
- equal
- pipe
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/16—Lubrication
Abstract
The invention discloses an air conditioner, a compression module, and a compression module group. The compression module comprises a gas-liquid separation device, an oil separator, and a plurality of compressors. Each compressor is provided with an oil balancing hole; and an oil balancing hole is also formed in the housing of the gas-liquid separation device. The oil balancing holes of the multiple compressors are connected with an inlet of the oil separator by a first oil balancing pipe; and an oil return pipe of the oil separator is connected with suction ports of the multiple compressors. A first oil balancing valve is connected in series to the first oil balancing pipe. The oil balancing holes of the multiple compressors are connected with an outlet of the oil separator by a second oil balancing pipe; the oil balancing hole of the gas-liquid separation device is connected with the outlet of the oil separator by a third oil balancing pipe; a second oil balancing valve is connected in series to the second oil balancing pipe; and a third oil balancing valve is connected in series to the third oil balancing pipe.. On the basis of the structural design, an oil offset phenomenon during long-term running of the compression module can be effective avoided.
Description
Technical field
The present invention relates to air conditioner structure technical field, more particularly, relate to a kind of air-conditioner, compression module and compression module group.
Background technology
Compressor is the most important parts of air-conditioner, and during compressor operating, its inside has a large amount of friction, therefore for ensureing the normal operation of compressor, needing lubricating oil to lubricate compressor, cooling and seal.It is bad that lubricant effect at least crossed by lubricating oil in compressor, and lubricating oil is crossed and may be occurred that oil hits phenomenon at most.
Existing Air Conditioner generally uses multiple compression module to carry out the compression of refrigerant, and each compression module comprises the compressor of multiple parallel connection, and multiple compression module is arranged in parallel.When multiple compression module works, due to the oil drain quantity of multiple compressor and the difference of recirculating oil quantity simultaneously, permanent running there will be partially oily phenomenon, and the lubricants capacity namely in multiple compressor is unbalanced, and some lubricating oil oil content are more, and some lubricating oil content is less.Time serious, some compressors can damage because of long-time oil starvation, and some compressors there will be oil and hit phenomenon and the reliability affecting compressor.
In sum, occurring partially oily situation when how effectively to avoid compression module to operate for a long time, is current those skilled in the art's urgent problem.
Summary of the invention
In view of this, first object of the present invention is to provide a kind of compression module, occur partially oily situation when the structural design of this compression module can avoid compression module to operate for a long time effectively, second object of the present invention is to provide and a kind ofly comprises the compression module group of above-mentioned compression module and a kind of air-conditioner comprising above-mentioned compression module group.
In order to reach above-mentioned first object, the invention provides following technical scheme:
A kind of compression module, comprise gas-liquid separator, oil eliminator and multiple compressor, each described compressor all offers equal oilhole, and the shell of described gas-liquid separator also offers equal oilhole;
The equal oilhole of multiple described compressor passes through the inlet communication of the first oil equalizing pipe and described oil eliminator, and the oil return pipe of described oil eliminator is all communicated with the air entry of multiple compressor, described first oil equalizing pipe is serially connected with the first equal fuel tap;
The equal oilhole of multiple described compressor by the second oil equalizing pipe can with the outlet of described oil eliminator, the equal oilhole of described gas-liquid separator passes through the outlet of the 3rd oil equalizing pipe and described gas-liquid separator, and described second oil equalizing pipe is serially connected with the second equal fuel tap, described 3rd oil equalizing pipe is serially connected with the 3rd equal fuel tap.
Preferably, in above-mentioned compression module, the oil return pipe of described oil eliminator is also serially connected with capillary.
Preferably, in above-mentioned compression module, the oil return pipe of described oil eliminator is also serially connected with filter, described filter bits is between the oil return opening and described capillary of oil eliminator.
Preferably, in above-mentioned compression module, the equal oilhole of multiple described compressor is communicated with respectively by multiple branched pipe one end with described first oil equalizing pipe, and each described branched pipe is also serially connected with check valve.
Preferably, in above-mentioned compression module, the described first equal fuel tap, the second equal fuel tap and the 3rd equal fuel tap are magnetic valve.
Preferably, in above-mentioned compression module, also comprise cross valve, the first interface of described cross valve and the outlet of described oil eliminator, the second interface is communicated with tracheae, the inlet communication of the 3rd interface and gas-liquid separator, and the 4th interface is communicated with outdoor heat exchanger.
Preferably, in above-mentioned compression module, the equal oilhole of described compressor is arranged on the top of required minimum oil level when described compressor normally runs.
A kind of compression module group, comprises the compression module of multiple parallel connection, and described compression module is the compression module according to any one of such as above-mentioned.
Preferably, in above-mentioned compression module group, the quantity of described compression module is four, and each described compression module comprises two described compressors in parallel.
A kind of air-conditioner, comprises compression module group, and described compression module group is the compression module group according to any one of such as above-mentioned.
When applying compression module provided by the invention, when only a compression module runs, open the first equal fuel tap, close the second equal fuel tap and the 3rd equal fuel tap.The equal oilhole of compressor is opened in and is arranged on required minimum oil level place or top when compressor normally runs.When compressor contains too much lubricating oil, unnecessary lubricating oil can be discharged from equal oilhole, enter in oil eliminator through the first oil equalizing pipe and the first equal fuel tap, and then isolated lubricating oil refluxes through its oil return pipe by oil eliminator, because the oil return pipe of oil eliminator is all communicated with the air entry of multiple compressor, therefore compressor can realize air-breathing oil return, can lubricants capacity in the multiple compressors in equal compression module with this.
When the compression module of multiple parallel connection runs simultaneously, open the second equal fuel tap and the 3rd equal fuel tap, close the first equal fuel tap, now unnecessary in compressor lubricating oil can be discharged from equal oilhole, mix with the refrigerant that the outlet from oil eliminator is discharged after the second oil equalizing pipe and the second equal fuel tap are discharged, and then enter the tube connector place of indoor set and indoor set and off-premises station along with refrigerant, in unit running process, these unnecessary lubricating oil carry out sub-distribution again by air-breathing circuit between the multiple compressor modules run.Equal oilhole due to gas-liquid separator passes through the outlet of the 3rd oil equalizing pipe and gas-liquid separator, the flow velocity of the gaseous refrigerant in gas-liquid separator exit will be far longer than the flow velocity at the equal oilhole place of gas-liquid separator, therefore can be brought in coolant circulating system by gaseous refrigerant at a high speed higher than the refrigerant of its equal oilhole in gas-liquid separator, and then be assigned to multiple compressors of each compression module by air-breathing oil return, and then achieve the lubricants capacity in the multiple compressors in balanced multiple compression module.
In order to reach above-mentioned second object, present invention also offers a kind of compression module group, this compression module group comprises any one compression module above-mentioned.Because above-mentioned compression module has above-mentioned technique effect, the compression module group with this compression module also should have corresponding technique effect, present invention also offers a kind of air-conditioner comprising above-mentioned compression module group.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The system diagram of the compression module that Fig. 1 provides for the embodiment of the present invention;
The system diagram of the compression module group that Fig. 2 provides for the embodiment of the present invention.
In Fig. 1-2:
1-tracheae, 2-cross valve, 3-liquid pipe, 4-oil eliminator, 5-outdoor heat exchanger, 6-second be fuel tap, 7-first all fuel tap, 8-second oil equalizing pipe, 9-filter, 10-capillary, 11-first oil equalizing pipe, 12-branched pipe, 13-compressor, 14-check valve, the equal fuel tap of 15-the 3rd, 16-gas-liquid separators all.
Detailed description of the invention
First object of the present invention is to provide a kind of compression module, occur partially oily situation when the structural design of this compression module can avoid compression module to operate for a long time effectively, second object of the present invention is to provide and a kind ofly comprises the compression module group of above-mentioned compression module and a kind of air-conditioner comprising above-mentioned compression module group.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 2, compression module provided by the invention comprises gas-liquid separator 16, oil eliminator 4 and multiple compressor 13.Wherein each compressor 13 all offers equal oilhole, i.e. the shell of each compressor 13 offers equal oilhole.The shell of gas-liquid separator 16 also offers equal oilhole.When lubricating oil liquid level in compressor 13 is higher than its equal oilhole, unnecessary lubricating oil can be discharged from the equal oilhole of compressor 13.When lubricating oil liquid level in gas-liquid separator 16 is higher than its equal oilhole, unnecessary lubricating oil can be discharged from the equal oilhole of gas-liquid separator 16.The equal oilhole of multiple compressor 13 is all by the inlet communication of the first oil equalizing pipe 11 with oil eliminator 4, namely one end of the first oil equalizing pipe 11 is all communicated with the equal oilhole of multiple compressor 13, the inlet communication of the other end and oil eliminator 4, and the first oil equalizing pipe 11 is serially connected with the first equal fuel tap 7.The oil return pipe of oil eliminator 4 is all communicated with the air entry of multiple compressor 13.
In addition, the equal oilhole of multiple compressor 13 is by the outlet of the second oil equalizing pipe 8 with oil eliminator 4, namely one end of the second oil equalizing pipe 8 is all communicated with the equal oilhole of multiple compressor 13, the outlet of the other end and oil eliminator 4, the equal oilhole of gas-liquid separator 16 passes through the outlet of the 3rd oil equalizing pipe and gas-liquid separator 16, and the outlet of gas-liquid separator 16 is all communicated with the air entry of multiple compressor 13.Preferably, one end of the 3rd oil equalizing pipe is communicated with the equal oilhole of gas-liquid separator 16, the pipeline connection between the outlet of the other end and gas-liquid separator 16 and the air entry of compressor 13.Further, the second oil equalizing pipe 8 is serially connected with on the second equal fuel tap the 6, three oil equalizing pipe and is serially connected with the 3rd equal fuel tap 15.
When applying compression module provided by the invention, when only a compression module runs, open the first equal fuel tap 7, close the second equal fuel tap 6 and the 3rd equal fuel tap 15.The equal oilhole of compressor 13 is opened in and is arranged on required minimum oil level place or top when compressor 13 normally runs.When compressor 13 is containing too much lubricating oil, unnecessary lubricating oil can be discharged from equal oilhole, enter in oil eliminator 4 through the first oil equalizing pipe 11 and the first equal fuel tap 7, and then isolated lubricating oil refluxes through its oil return pipe by oil eliminator 4, because the oil return pipe of oil eliminator 4 is all communicated with the air entry of multiple compressor 13, therefore compressor 13 can realize air-breathing oil return, can lubricants capacity in the multiple compressors 13 in equal compression module with this.
When the compression module of multiple parallel connection runs simultaneously, open the second equal fuel tap 6 and the 3rd equal fuel tap 15, close the first equal fuel tap 7, now unnecessary in compressor 13 lubricating oil can be discharged from equal oilhole, mix with the refrigerant that the outlet of oil eliminator 4 is discharged after the second oil equalizing pipe 8 and the second equal fuel tap 6 are discharged, and then enter the tube connector place of indoor set and indoor set and off-premises station along with refrigerant, in unit running process, these unnecessary lubricating oil carry out sub-distribution again by air-breathing circuit between the multiple compressor modules run.Equal oilhole due to gas-liquid separator 16 passes through the outlet of the 3rd oil equalizing pipe and gas-liquid separator 16, the flow velocity of the gaseous refrigerant in gas-liquid separator 16 exit will be far longer than the flow velocity at the equal oilhole place of gas-liquid separator 16, therefore can be brought in coolant circulating system by gaseous refrigerant at a high speed higher than the refrigerant of its equal oilhole in gas-liquid separator 16, and then be assigned to multiple compressors 13 of each compression module by air-breathing oil return, and then achieve the lubricants capacity in the multiple compressors 13 in balanced multiple compression module.
Preferably, the oil return pipe of oil eliminator 4 can also be serially connected with capillary 10, so can regulate flow velocity and the pressure of the lubricating oil of backflow, the oil return pipe of certain oil eliminator 4 can also arrange choke valve, in this no limit.Further, follow lubricating oil to prevent dust and enter compressor 13 inside, the oil return pipe of oil eliminator 4 can also be serially connected with filter 9, so can filter out the dust adulterated in lubricating oil.Preferably, filter 9 is between the oil return opening and capillary 10 of oil eliminator 4.
In addition, in order to prevent lubricating oil from flowing backwards, wherein the equal oilhole of multiple compressor 13 can be communicated with respectively by multiple branched pipe 12 one end with the first oil equalizing pipe 11, and each branched pipe 12 is serially connected with check valve 14.Namely one end of branched pipe 12 is communicated with the equal oilhole of compressor 13, and the other end is communicated with one end of the first oil equalizing pipe 11, and the check valve 14 on branched pipe 12 like this can prevent lubricating oil from flowing backwards.
In addition, the first equal fuel tap 6 of equal fuel tap 7, second and the 3rd equal fuel tap 15 can be magnetic valve, are so more convenient to control, and the certain first equal fuel tap 6 of equal fuel tap 7, second and the 3rd equal fuel tap 15 also can be other open and close valve, in this no limit.
In order to optimize technique scheme further, this compression module can also comprise cross valve 2, and the outlet of the first interface of cross valve 2 and oil eliminator 4, second interface is communicated with tracheae 1, the inlet communication of the 3rd interface and gas-liquid separator 16,4th interface is communicated with outdoor heat exchanger 5, the import of oil eliminator 4 and the outlet of compressor 13.Further, one end of the second oil equalizing pipe 8 is communicated with the equal oilhole of multiple compressor 13, and the other end is communicated with first interface.Liquid pipe 3 is also connected with between indoor set and off-premises station.
Preferably, the equal oilhole of compressor 13 can be arranged on the top of required minimum oil level when compressor 13 normally runs, and so can ensure the lubricant effect of compressor 13.Certainly, the equal oilhole of compressor 13 also can be arranged on required minimum oil level place when compressor 13 normally runs, in this no limit.It should be noted that, the equal oilhole of compressor 13 is positioned at the below of exhaust valve plate.
Based on the compression module provided in above-described embodiment, present invention also offers a kind of compression module group, it comprises the compression module of multiple parallel connection, and this compression module is any one compression module in above-described embodiment.The compression module in above-described embodiment is have employed, so the beneficial effect of this compression module group please refer to above-described embodiment due to this compression module group.
Preferably, in above-mentioned compression module group, the quantity of compression module is four, and each compression module comprises two compressors 13 in parallel.Certainly, in the quantity of compression module and each compression module, the quantity of compressor 13 can be arranged according to actual conditions, in this no limit.
Present invention also offers a kind of air-conditioner, it comprises any one compression module group in above-described embodiment, and therefore the beneficial effect of this air-conditioner please refer to above-described embodiment.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a compression module, comprise gas-liquid separator (16), oil eliminator (4) and multiple compressor (13), it is characterized in that, each described compressor (13) all offers equal oilhole, and the shell of described gas-liquid separator (16) also offers equal oilhole;
The equal oilhole of multiple described compressor (13) is by the inlet communication of the first oil equalizing pipe (11) with described oil eliminator (4), and the oil return pipe of described oil eliminator (4) is all communicated with the air entry of multiple compressor (13), described first oil equalizing pipe (11) is serially connected with the first equal fuel tap (7);
The equal oilhole of multiple described compressor (13) by the second oil equalizing pipe (8) can with the outlet of described oil eliminator (4), the equal oilhole of described gas-liquid separator (16) passes through the outlet of the 3rd oil equalizing pipe and described gas-liquid separator (16), and described second oil equalizing pipe (8) is serially connected with the second equal fuel tap (6), described 3rd oil equalizing pipe is serially connected with the 3rd equal fuel tap (15).
2. compression module according to claim 1, is characterized in that, the oil return pipe of described oil eliminator (4) is also serially connected with capillary (10).
3. compression module according to claim 2, it is characterized in that, the oil return pipe of described oil eliminator (4) is also serially connected with filter (9), described filter (9) is positioned between the oil return opening of oil eliminator (4) and described capillary (10).
4. compression module according to claim 1, it is characterized in that, the equal oilhole of multiple described compressor (13) is communicated with respectively by multiple branched pipe (12) one end with described first oil equalizing pipe (11), and each described branched pipe (12) is also serially connected with check valve (14).
5. compression module according to claim 1, is characterized in that, the described first equal fuel tap (7), the second equal fuel tap (6) and the 3rd equal fuel tap (15) are magnetic valve.
6. the compression module according to any one of claim 1-5, it is characterized in that, also comprise cross valve (2), the first interface of described cross valve (2) and the outlet of described oil eliminator (4), second interface is communicated with tracheae (1), the inlet communication of the 3rd interface and gas-liquid separator (16), the 4th interface is communicated with outdoor heat exchanger (5).
7. compression module according to claim 6, is characterized in that, the equal oilhole of described compressor (13) is arranged on the top of required minimum oil level when described compressor (13) normally runs.
8. a compression module group, comprises the compression module of multiple parallel connection, it is characterized in that, described compression module is the compression module such as according to any one of claim 1-7.
9. compression module group according to claim 8, is characterized in that, the quantity of described compression module is four, and each described compression module comprises two described compressors (13) in parallel.
10. an air-conditioner, comprises compression module group, it is characterized in that, described compression module group is the compression module group such as according to any one of claim 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474017.5A CN104990307B (en) | 2015-08-05 | 2015-08-05 | Air conditioner, compression module and compression module group |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510474017.5A CN104990307B (en) | 2015-08-05 | 2015-08-05 | Air conditioner, compression module and compression module group |
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| CN104990307A true CN104990307A (en) | 2015-10-21 |
| CN104990307B CN104990307B (en) | 2017-11-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105180493A (en) * | 2015-09-01 | 2015-12-23 | 珠海格力电器股份有限公司 | Compressor module, multi-module unit and oil-balancing control method for multi-module unit |
| CN106440572A (en) * | 2016-09-09 | 2017-02-22 | 珠海格力电器股份有限公司 | Oil balancing and returning air conditioning unit and control method thereof |
| CN108139122A (en) * | 2015-10-23 | 2018-06-08 | 三星电子株式会社 | Air-conditioning system |
| CN115451611A (en) * | 2022-08-17 | 2022-12-09 | 三菱重工海尔(青岛)空调机有限公司 | Super air conditioner network oil return control method |
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| CN115451611A (en) * | 2022-08-17 | 2022-12-09 | 三菱重工海尔(青岛)空调机有限公司 | Super air conditioner network oil return control method |
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|---|---|
| CN104990307B (en) | 2017-11-17 |
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