CN201621903U - Multi-compressor heat pump system - Google Patents
Multi-compressor heat pump system Download PDFInfo
- Publication number
- CN201621903U CN201621903U CN2010201078053U CN201020107805U CN201621903U CN 201621903 U CN201621903 U CN 201621903U CN 2010201078053 U CN2010201078053 U CN 2010201078053U CN 201020107805 U CN201020107805 U CN 201020107805U CN 201621903 U CN201621903 U CN 201621903U
- Authority
- CN
- China
- Prior art keywords
- compressor
- oil
- transfiguration
- constant speed
- frequency
- Prior art date
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 35
- 239000000314 lubricant Substances 0.000 description 9
- 238000009827 uniform distribution Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a many compressors heat pump system, this system include a constant speed compressor and a varactor or variable frequency compressor at least, are equipped with oil-sharing pipe between the oil-sharing mouth of constant speed compressor and varactor or variable frequency compressor, are equipped with the check valve towards varactor or variable frequency compressor on this oil-sharing pipe, still are equipped with the oil-sharing capillary that connects in parallel with the check valve on oil-sharing pipe. The utility model discloses can realize the evenly distributed of lubricating oil between each compressor, improve the reliability of compressor operation.
Description
Technical field
The utility model belongs to art of heat pumps, is specifically related to a kind of multi-compressor heat pump.
Background technology
In the heat pump of multi-compressor, the distribution of lubrication oil problem between each unit, in the unit between each compressor is most important, in case distribute inequality, damages because of oil starvation with regard to very likely causing certain compressor.Just at present, the distribution of each compressor lubricant oil remains in certain defective in the heat pump, exist simultaneously in system under the situation of constant speed compressor and transfiguration or frequency-changeable compressor, the non-uniform phenomenon of system oil is even more serious, needs to do further to improve.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, and a kind of multi-compressor heat pump is provided, and the utility model can be realized the uniform distribution of lubricating oil between each compressor, improves the reliability of compressor operating.
Its technical scheme is as follows:
A kind of multi-compressor heat pump, this system comprises a constant speed compressor and transfiguration or frequency-changeable compressor at least, be provided with oil equalizing pipe between the equal hydraulic fluid port of constant speed compressor and transfiguration or frequency-changeable compressor, on this oil equalizing pipe, be provided with check valve, on oil equalizing pipe, also be provided with the equal oily capillary in parallel with check valve towards transfiguration or frequency-changeable compressor.
Because can there be variation in the decrement of transfiguration or frequency-changeable compressor, in the course of the work, under the situation as if lubricating oil deficiency in transfiguration or the frequency-changeable compressor, lubricating oil in the constant speed compressor can enter into the equal hydraulic fluid port of transfiguration or frequency-changeable compressor by check valve, and then the lubricants capacity of raising transfiguration or frequency-changeable compressor, when the lubricants capacity in transfiguration or the frequency-changeable compressor is excessive, can be back in the equal hydraulic fluid port of constant speed compressor by equal oily capillary.
The technical scheme of the further refinement of aforementioned techniques scheme can be:
Described constant speed compressor is at least two, each compressor parallel is provided with, the air entry of each compressor communicates by tube connector, is provided with oil eliminator at the exhaust outlet of each compressor, each compressor the oil-out of corresponding oil eliminator communicate with the air entry of compressor separately by main oil return capillary.By each compressor main oil return capillary separately, can realize the backflow of lubricating oil in each compressor.
Also include auxiliary oil return capillary, the oil-out of the corresponding oil eliminator of one of them described compressor institute communicates with the air entry of another compressor by assisting the oil return capillary.When if the lubricants capacity in one of them compressor is excessive, can by auxiliary oil return capillary flow to other compressor, make each compressor lubricant oil uniform distribution.
Particularly, can adopt following two kinds of connected modes:
1, described compressor is N1, wherein N1 is more than or equal to 3, and N1 is an odd number, to the constant speed compressor number consecutively, the oil-out of i the corresponding oil eliminator of described compressor institute communicates with the air entry of (N1+1)/2+i compressor by assisting the oil return capillary by transfiguration or frequency-changeable compressor.
2, described compressor is N2, wherein N2 is more than or equal to 4, and N2 is an even number, and to the constant speed compressor number consecutively, the oil-out of i the corresponding oil eliminator of described compressor institute communicates with the air entry of N2/2+i compressor by assisting the oil return capillary by transfiguration or frequency-changeable compressor.
Need to prove that compressor is connected with pipeline between condenser, evaporimeter and the restricting element, this has been a prior art, repeats no more herein.
In sum, the utility model has the advantages that: the equal oily effect of each compressor is even more ideal, has reduced the generation of compressor fault, improves the reliability of compressor operating.
Description of drawings
Fig. 1 is the structure principle chart of the utility model embodiment;
Description of reference numerals:
1, constant speed compressor, 2, transfiguration or frequency-changeable compressor, 3, oil equalizing pipe, 4, check valve, 5, equal oily capillary, 6, oil eliminator, 7, main oil return capillary, 8, auxiliary oil return capillary, 9, tube connector, 10, vapour liquid separator.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
As shown in Figure 1, a kind of multi-compressor heat pump, this system comprises a constant speed compressor 1 and transfiguration or frequency-changeable compressor 2 at least, be provided with oil equalizing pipe 3 between the equal hydraulic fluid port of constant speed compressor 1 and transfiguration or frequency-changeable compressor 2, on this oil equalizing pipe 3, be provided with check valve 4 towards transfiguration or frequency-changeable compressor 2, on oil equalizing pipe 3, also be provided with the equal oily capillary 5 in parallel, the shared vapour liquid separator 10 of each compressor with check valve 4.
Wherein, described constant speed compressor 1 is three, each compressor parallel is provided with, the air entry of each compressor communicates by tube connector 9, exhaust outlet at each compressor is provided with oil eliminator 6, each compressor the oil-out of corresponding oil eliminator 6 communicate with the air entry of compressor separately by main oil return capillary 7.
In four compressors, transfiguration or frequency-changeable compressor 2 are No. 1 compressor, and three constant speed compressors 1 are respectively No. 2 compressors, No. 3 compressors and No. 4 compressors; No. 1 compressor the oil-out of corresponding oil eliminator 6 communicate with the air entry of No. 3 compressors by auxiliary oil return capillary 8, No. 2 compressors the oil-out of corresponding oil eliminator 6 communicate with the air entry of No. 4 compressors by assisting oil return capillary 8.
Because can there be variation in the decrement of transfiguration or frequency-changeable compressor 2, in the course of the work, under the situation as if lubricating oil deficiency in transfiguration or the frequency-changeable compressor 2, lubricating oil in the constant speed compressor 1 can enter into the equal hydraulic fluid port of transfiguration or frequency-changeable compressor 2 by check valve 4, and then the lubricants capacity of raising transfiguration or frequency-changeable compressor 2, when the lubricants capacity in transfiguration or the frequency-changeable compressor 2 is excessive, can be back in the equal hydraulic fluid port of constant speed compressor 1 by equal oily capillary 5.
When if the lubricants capacity in one of them compressor is excessive, can also flow in other compressor by auxiliary oil return capillary 8, make the more uniform distribution of each compressor lubricant oil.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (5)
1. multi-compressor heat pump, this system comprises a constant speed compressor and transfiguration or frequency-changeable compressor at least, it is characterized in that, be provided with oil equalizing pipe between the equal hydraulic fluid port of constant speed compressor and transfiguration or frequency-changeable compressor, on this oil equalizing pipe, be provided with check valve, on oil equalizing pipe, also be provided with the equal oily capillary in parallel with check valve towards transfiguration or frequency-changeable compressor.
2. multi-compressor heat pump according to claim 1, it is characterized in that, described constant speed compressor is at least two, each compressor parallel is provided with, the air entry of each compressor communicates by tube connector, exhaust outlet at each compressor is provided with oil eliminator, each compressor the oil-out of corresponding oil eliminator communicate with the air entry of compressor separately by main oil return capillary.
3. as multi-compressor heat pump as described in the claim 2, it is characterized in that, also include auxiliary oil return capillary, the oil-out of the corresponding oil eliminator of one of them described compressor institute communicates with the air entry of another compressor by assisting the oil return capillary.
4. as multi-compressor heat pump as described in claim 2 or 3, it is characterized in that, described compressor is N1, wherein N1 is more than or equal to 3, and N1 is an odd number, to the constant speed compressor number consecutively, the oil-out of i the corresponding oil eliminator of described compressor institute communicates with the air entry of (N1+1)/2+i compressor by assisting the oil return capillary by transfiguration or frequency-changeable compressor.
5. as multi-compressor heat pump as described in claim 2 or 3, it is characterized in that, described compressor is N2, wherein N2 is more than or equal to 4, and N2 is an even number, to the constant speed compressor number consecutively, the oil-out of i the corresponding oil eliminator of described compressor institute communicates with the air entry of N2/2+i compressor by assisting the oil return capillary by transfiguration or frequency-changeable compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201078053U CN201621903U (en) | 2010-01-29 | 2010-01-29 | Multi-compressor heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201078053U CN201621903U (en) | 2010-01-29 | 2010-01-29 | Multi-compressor heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621903U true CN201621903U (en) | 2010-11-03 |
Family
ID=43025359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201078053U Expired - Lifetime CN201621903U (en) | 2010-01-29 | 2010-01-29 | Multi-compressor heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621903U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913015A (en) * | 2012-12-31 | 2014-07-09 | 丹佛斯（天津）有限公司 | Oil balance device and refrigerating system with same |
| CN105157277A (en) * | 2014-06-03 | 2015-12-16 | 广东美的暖通设备有限公司 | Multi-connected split air conditioning system |
| CN106766371A (en) * | 2016-11-29 | 2017-05-31 | 珠海格力电器股份有限公司 | Two-stage compressor heat pump and oil return control system and control method thereof |
-
2010
- 2010-01-29 CN CN2010201078053U patent/CN201621903U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913015A (en) * | 2012-12-31 | 2014-07-09 | 丹佛斯（天津）有限公司 | Oil balance device and refrigerating system with same |
| CN103913015B (en) * | 2012-12-31 | 2016-04-27 | 丹佛斯（天津）有限公司 | Oil balancing unit and use its refrigeration system |
| CN105157277A (en) * | 2014-06-03 | 2015-12-16 | 广东美的暖通设备有限公司 | Multi-connected split air conditioning system |
| CN106766371A (en) * | 2016-11-29 | 2017-05-31 | 珠海格力电器股份有限公司 | Two-stage compressor heat pump and oil return control system and control method thereof |
| CN106766371B (en) * | 2016-11-29 | 2019-12-10 | 珠海格力电器股份有限公司 | two-stage compressor heat pump and oil return control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |