CN203011007U - Oil return device and air conditioning unit with same - Google Patents
Oil return device and air conditioning unit with same Download PDFInfo
- Publication number
- CN203011007U CN203011007U CN 201220749448 CN201220749448U CN203011007U CN 203011007 U CN203011007 U CN 203011007U CN 201220749448 CN201220749448 CN 201220749448 CN 201220749448 U CN201220749448 U CN 201220749448U CN 203011007 U CN203011007 U CN 203011007U
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- China
- Prior art keywords
- oil return
- return apparatus
- delivery outlet
- air
- compressor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 238000005057 refrigeration Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 description 91
- 239000003507 refrigerant Substances 0.000 description 16
- 239000000203 mixture Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000010725 compressor oil Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
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Abstract
The utility model aims at providing an oil return device and have this oil return device's air conditioning unit, wherein, oil return device includes the liquid storage tank body (10) and heater block (20), and the liquid storage tank body (10) have inner chamber (11), are provided with inlet (12) with inner chamber (11) intercommunication on the liquid storage tank body (10), return-air delivery outlet (13) and return-oil delivery outlet (14), and heater block (20) set up in inner chamber (11). The utility model discloses the problem that the compressor can't effectively return oil and lead to the compressor to damage among the prior art air conditioner unit has been solved effectively.
Description
Technical field
The utility model is specifically related to a kind of oil return apparatus and has the air-conditioning unit of this oil return apparatus.
Background technology
Air-conditioning unit of the prior art, as open-type screw rod air-conditioning unit, because the unit cold is large, the refrigerant circulation pipeline is long, the load variations wide ranges, and the part refrigeration oil that oil eliminator can't all separate is along with cold-producing medium is recycled in evaporimeter together, cause refrigeration oil can't get back to smoothly compressor by normal refrigerant circulation, after operation a period of time, can cause the compressor oil starvation, unit can't normally move.As oil return timely and effectively, will cause the heavy wear of compressor key components (as: rotor), even compressor damage.
The utility model content
The utility model aims to provide a kind of oil return apparatus and has the air-conditioning unit of this oil return apparatus, to solve effectively oil return and cause the problem of compressor damage of compressor in air-conditioning unit in prior art.
To achieve these goals, according to an aspect of the present utility model, a kind of oil return apparatus is provided, comprise liquid storage tank body and heater block, the liquid storage tank body has inner chamber, be provided with the inlet, return-air delivery outlet and the oil return delivery outlet that are communicated with inner chamber on the liquid storage tank body, heater block is arranged in inner chamber.
Further, also be provided with the pressurization mouth that is communicated with inner chamber on the liquid storage tank body.
Further, inlet, return-air delivery outlet, oil return delivery outlet and pressurization mouth all are connected with valve.
Further, oil return apparatus also is provided with controller, and valve is magnetic valve and is electrically connected to controller.
Further, be provided with liquid level sensor for detection of the inner chamber liquid level on the liquid storage tank body.
Further, heater block is electrically heated rod.
Further, oil return apparatus is provided with the temperature sensor for detection of the oil temperature of refrigeration oil.
Further, the return-air delivery outlet is positioned at the top of inner chamber, and the oil return delivery outlet is positioned at the bottom of inner chamber.
According on the other hand of the present utility model, a kind of air-conditioning unit is provided, be included in the coconnected compressor of system pipeline and evaporimeter, the air-conditioning unit also comprises above-mentioned oil return apparatus, the inlet of oil return apparatus is communicated with evaporimeter, the return-air delivery outlet of oil return apparatus is communicated with the air entry of compressor, and the oil return delivery outlet of oil return apparatus is communicated with the inlet port of compressor.
According on the other hand of the present utility model, a kind of air-conditioning unit is provided, be included in the coconnected compressor of system pipeline and evaporimeter, the air-conditioning unit also comprises above-mentioned oil return apparatus, the inlet of oil return apparatus is communicated with evaporimeter, the return-air delivery outlet of oil return apparatus is communicated with the air entry of compressor, and the oil return delivery outlet of oil return apparatus is communicated with the inlet port of compressor, and the pressurization mouth of oil return apparatus is communicated with the exhaust outlet of compressor.
Use the technical solution of the utility model, oil return apparatus comprises liquid storage tank body and heater block, and the liquid storage tank body has inner chamber, is provided with the inlet, return-air delivery outlet and the oil return delivery outlet that are communicated with inner chamber on the liquid storage tank body, and heater block is arranged in inner chamber.After in the air-conditioning unit, this oil return apparatus being installed, the mixture that is accumulated in refrigerant in evaporimeter and refrigeration oil is connect guide to this oil return apparatus, heat by the mixture of heater block to refrigerant and refrigeration oil in the inner chamber of liquid storage tank body, refrigerant is heated flashes to gaseous state, refrigeration oil is separated with refrigerant and reach the purpose of purification, then refrigeration oil is carried the inlet port of getting back to compressor, the refrigerant of gaseous state is got back to the air entry of compressor, keep so effectively oil return of compressor, realized the long-term stability operation of oily balance and the system of system.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment of oil return apparatus of the present utility model.
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model provides the embodiment of oil return apparatus, specifically referring to Fig. 1, the oil return apparatus of the present embodiment comprises liquid storage tank body 10 and heater block 20, liquid storage tank body 10 has inner chamber 11, be provided with the inlet 12, return-air delivery outlet 13 and the oil return delivery outlet 14 that are communicated with inner chamber 11 on liquid storage tank body 10, heater block 20 is arranged in inner chamber 11.
after in the air-conditioning unit, this oil return apparatus being installed, the mixture that is accumulated in refrigerant in evaporimeter and refrigeration oil is connect by inlet 12 guide to this oil return apparatus, mixture by 20 pairs of refrigerants of heater block and refrigeration oil in the inner chamber 11 of liquid storage tank body 10 heats, refrigerant is heated flashes to gaseous state, refrigeration oil is separated with refrigerant and reach the purpose of purification, then refrigeration oil is carried by oil return delivery outlet 14 inlet port of getting back to compressor, the refrigerant of gaseous state is got back to the air entry of compressor by the pipeline of return-air delivery outlet 13, kept so effectively oil return of compressor, realized the long-term stability operation of oily balance and the system of system.
Return-air delivery outlet 13 is positioned at inner chamber 11 tops of liquid storage tank body 10, and oil return delivery outlet 14 is positioned at inner chamber 12 bottoms of liquid storage tank body 10.Also be provided with the pressurization mouth 15 that is communicated with inner chamber 11 on liquid storage tank body 10.In the air-conditioning unit, the pressurization mouth is connected with the exhaust outlet of compressor, and the gas that compressor is discharged enters in the liquid storage tank body and pressurizes, and the isolated refrigeration oil of favourable like this quickening enters compressor.
Inlet 12, return-air delivery outlet 13, oil return delivery outlet 14 and pressurization mouth 15 all are connected with valve 30.Control oil return apparatus by the control of valve and whether turn round and operation process, the present embodiment further preferably, oil return apparatus also is provided with controller, valve 30 is magnetic valve and is electrically connected to controller.Controller is controlled the switch of each mouthful according to specific needs, and operating personnel can carry out the Long-distance Control oil return apparatus according to the real-time status of air-conditioning unit.
In order further the more optimization of system to be done in the control of oil return apparatus, also be provided with the liquid level sensor 40 for detection of inner chamber 11 liquid levels on liquid storage tank body 10.In the present embodiment, liquid level sensor 40 is electrically connected to controller, by detection and the controller control magnetic valve of liquid level sensor, the course of work of oil return apparatus is controlled, and concrete control procedure is as follows:
(set when this service condition can be dispatched from the factory for unit, namely automatically open every some months when oil return apparatus reaches service condition; Perhaps artificial the selection opened, the people is for thinking when needing oil return, manually opened), the magnetic valve of the magnetic valve of the inlet of oil return apparatus and return-air delivery outlet is opened simultaneously, when the liquid level in inner chamber reaches liquid level sensor to the low liquid level settings of controller output, the heater block of opening oil return apparatus heats the mixture of refrigerant with oil, refrigerant is heated flashes to gaseous state, reaches the purpose of purification.when the liquid level in inner chamber reaches liquid level sensor to the high level value of controller output, controller cuts out the magnetic valve of inlet and the magnetic valve of return-air delivery outlet, open the magnetic valve of oil return delivery outlet and the magnetic valve of pressurization mouth, at this moment, the gas that compressor is discharged enters in the liquid storage tank body and pressurizes, because return line is positioned at liquid storage tank body lower position, effect by pressure makes refrigeration oil get back to the compressor oil absorbing end, when liquid level drops to low liquid level again, disconnect the magnetic valve of oil return delivery outlet and the magnetic valve of pressurization mouth, open the magnetic valve of inlet and the magnetic valve of return-air delivery outlet, the next circular flow of beginning automatic oil return, until oil scavenger end running time, all magnetic valves and heater block are all closed.
The utility model provides a kind of embodiment of air-conditioning unit, the air-conditioning unit of the present embodiment is included in the coconnected compressor of system pipeline and evaporimeter, the air-conditioning unit also comprises above-mentioned oil return apparatus, the inlet of oil return apparatus is communicated with evaporimeter, the return-air delivery outlet of oil return apparatus is communicated with the air entry of compressor, and the oil return delivery outlet of oil return apparatus is communicated with the inlet port of compressor.After in the air-conditioning unit, oil return apparatus being installed, by oil return apparatus, refrigeration oil is separated the purpose that reaches purification with refrigerant, then transport refrigeration oil back compressor by the oil return delivery outlet, the gas of refrigerant is got back to the air entry of compressor by the pipeline of return-air delivery outlet.
Preferably, the pressurization mouth of compressor is communicated with the exhaust outlet of evaporimeter.In the air-conditioning unit, the pressurization mouth is connected with the evaporimeter exhaust outlet, and the gas that evaporimeter is discharged enters in the liquid storage tank body and pressurizes, and the isolated refrigeration oil of favourable like this quickening enters compressor.Effectively oil return of compressor in the air-conditioning unit of the present embodiment has realized the long-term stability operation of oily balance and the system of system.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. oil return apparatus, it is characterized in that, comprise liquid storage tank body (10) and heater block (20), described liquid storage tank body (10) has inner chamber (11), be provided with the inlet (12), return-air delivery outlet (13) and the oil return delivery outlet (14) that are communicated with described inner chamber (11) on described liquid storage tank body (10), described heater block (20) is arranged in described inner chamber (11).
2. oil return apparatus according to claim 1, is characterized in that, also is provided with the pressurization mouth (15) that is communicated with described inner chamber (11) on described liquid storage tank body (10).
3. oil return apparatus according to claim 2, is characterized in that, described inlet (12), return-air delivery outlet (13), oil return delivery outlet (14) and described pressurization mouthful (15) all are connected with valve (30).
4. oil return apparatus according to claim 3, is characterized in that, described oil return apparatus also is provided with controller, and described valve (30) is magnetic valve and is electrically connected to described controller.
5. oil return apparatus according to claim 1, is characterized in that, is provided with the liquid level sensor (40) for detection of described inner chamber (11) liquid level on described liquid storage tank body (10).
6. oil return apparatus according to claim 1, is characterized in that, described heater block (20) is electrically heated rod.
7. oil return apparatus according to claim 6, is characterized in that, described oil return apparatus is provided with the temperature sensor for detection of the oil temperature of refrigeration oil.
8. oil return apparatus according to claim 1, is characterized in that, described return-air delivery outlet (13) is positioned at the top of described inner chamber (11), and described oil return delivery outlet (14) is positioned at the bottom of described inner chamber (11).
9. air-conditioning unit, be included in the coconnected compressor of system pipeline and evaporimeter, it is characterized in that, described air-conditioning unit also comprises the described oil return apparatus of any one in claim 1 to 8, the inlet of described oil return apparatus is communicated with described evaporimeter, the return-air delivery outlet of described oil return apparatus is communicated with the air entry of described compressor, and the oil return delivery outlet of described oil return apparatus is communicated with the inlet port of described compressor.
10. air-conditioning unit, be included in the coconnected compressor of system pipeline and evaporimeter, it is characterized in that, described air-conditioning unit also comprises oil return apparatus claimed in claim 2, the inlet of described oil return apparatus is communicated with described evaporimeter, the return-air delivery outlet of described oil return apparatus is communicated with the air entry of described compressor, and the oil return delivery outlet of described oil return apparatus is communicated with the inlet port of described compressor, and the pressurization mouth of described oil return apparatus is communicated with the exhaust outlet of described compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749448 CN203011007U (en) | 2012-12-31 | 2012-12-31 | Oil return device and air conditioning unit with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749448 CN203011007U (en) | 2012-12-31 | 2012-12-31 | Oil return device and air conditioning unit with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011007U true CN203011007U (en) | 2013-06-19 |
Family
ID=48602596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220749448 Expired - Lifetime CN203011007U (en) | 2012-12-31 | 2012-12-31 | Oil return device and air conditioning unit with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011007U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913014A (en) * | 2012-12-31 | 2014-07-09 | 珠海格力电器股份有限公司 | Oil return device and air conditioning unit with same |
| CN104422217A (en) * | 2013-08-27 | 2015-03-18 | 珠海格力电器股份有限公司 | Oil return control method for refrigeration system |
| CN107061287A (en) * | 2017-06-29 | 2017-08-18 | 广东美的暖通设备有限公司 | Compressor and heat pump |
-
2012
- 2012-12-31 CN CN 201220749448 patent/CN203011007U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913014A (en) * | 2012-12-31 | 2014-07-09 | 珠海格力电器股份有限公司 | Oil return device and air conditioning unit with same |
| CN103913014B (en) * | 2012-12-31 | 2016-05-25 | 珠海格力电器股份有限公司 | Oil return device and air conditioning unit with same |
| CN104422217A (en) * | 2013-08-27 | 2015-03-18 | 珠海格力电器股份有限公司 | Oil return control method for refrigeration system |
| CN104422217B (en) * | 2013-08-27 | 2016-10-05 | 珠海格力电器股份有限公司 | oil return control method for refrigeration system |
| CN107061287A (en) * | 2017-06-29 | 2017-08-18 | 广东美的暖通设备有限公司 | Compressor and heat pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |