CN104422198A - Compressor and control method of oil pump thereof - Google Patents
Compressor and control method of oil pump thereof Download PDFInfo
- Publication number
- CN104422198A CN104422198A CN201310365884.6A CN201310365884A CN104422198A CN 104422198 A CN104422198 A CN 104422198A CN 201310365884 A CN201310365884 A CN 201310365884A CN 104422198 A CN104422198 A CN 104422198A
- Authority
- CN
- China
- Prior art keywords
- oil pump
- compressor
- oil
- described oil
- pipeline
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 239000000446 fuel Substances 0.000 claims description 7
- 230000000052 comparative effect Effects 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 abstract description 10
- 230000002860 competitive effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 69
- 230000007812 deficiency Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003031 feeding effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000013486 operation strategy Methods 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
Abstract
The invention discloses a compressor and a control method of an oil pump of the compressor, wherein the compressor comprises a shell, the shell is provided with a compression chamber for accommodating a compression part and an oil storage chamber for storing oil supplied to the compression chamber, the shell is provided with an oil outlet communicated with the oil storage chamber and an oil inlet communicated with the compression chamber, an oil pump pipeline is arranged outside the shell, and the oil pump pipeline comprises an oil pump, an oil inlet pipeline connected between an inlet end of the oil pump and the oil outlet and an oil outlet pipeline connected between an outlet end of the oil pump and the oil inlet. Due to the adoption of the structure, when the compressor is in the condition of insufficient high-low pressure difference, the refrigeration oil of the compressor can be normally circulated and the compressor can still reliably run through the oil supply function of the oil pump, and meanwhile, the running range of the unit is increased in a phase-changing manner, so that the unit has competitive advantages in the application range. Moreover, the device also has the advantages of simple structure and convenient assembly.
Description
Technical field
The present invention relates to field of air conditioning, particularly relate to a kind of method of compressor and compressor oil circulation.
Background technology
On market, the application of compressor all can have a range of operation or requirement, compressor operating scope is considered from reliability, affect the multiple because have of compressor reliability, wherein, guarantee the circulation of compressor inside cold oil, and then guarantee the normal lubrication of compressor internal moving parts and add the normal work of unloading parts, this is one of principal element affecting compressor reliability.
In current large-scale handpiece Water Chilling Units (as air-cooled screw, water-cooling screw rod etc.), the circulation power of high pressure chest compressor (helical-lobe compressor) inside cold oil relies on pressure differential (high pressure-low pressure) between compressor high pressure, low pressure to provide completely, when compressor height pressure reduction is lower (as air-cooled screw, for source pump, when heating, when environment temperature is very low, during startup, water side temperature may be also very low, heating capacity is also lower, water temperature, condensing pressure cannot improve fast, high pressure and low-voltage differential lower, for the single cooler group of year round cooling, when the temperature of the surroundings is low, high-pressure may be lower, height pressure reduction is not enough), compressor and freeze oil circulation power is not enough, compressor may be caused to lubricate without enough refrigeration oils, compressor is caused to burn, the anomalies such as abnormal sound, have a strong impact on unit reliability, be particularly the unit of R134a for cold-producing medium, because R134a pressure is relatively lower, the phenomenon of height pressure reduction deficiency more easily occurs, at this moment, common way is that the range of operation of limit compression machine makes compressor under low height pressure reduction, not run or take a risk to allow compressor operating, no matter take which kind of method, all there will be the phenomenon that cannot meet user's actual need or affect unit reliability.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved by this invention is, a kind of compressor is provided, it can meet compressor oil-supplying requirement when height pressure reduction is lower, to reach the range of operation of expansion unit under low ambient temperature, low inflow temperature, unit is run under extreme operating condition reliably and with long-term.Another technical problem to be solved by this invention is, provides a kind of control method of oil pump of compressor.
In order to solve the problems of the technologies described above, a kind of compressor provided by the present invention, comprise housing, this housing has discharge chambe for holding compression member and for storing the reservoir compartment to described discharge chambe fuel feeding, described housing is provided with the oil-out be connected with described reservoir compartment and the oil-in be connected with described discharge chambe, described hull outside is provided with oil pump pipeline, the outlet line that this oil pump pipeline comprises oil pump, is connected to the in-line between the entrance point of this oil pump and described oil-out and is connected between the port of export of this oil pump and described oil-in.
Wherein in an embodiment, described oil pump pipeline also comprises check valve, and this check valve is connected in the two ends of described oil pump in parallel, and the flow direction of this check valve is consistent with the flow direction of described oil pump.
Wherein in an embodiment, described oil pump pipeline also comprises filter, and this filter is connected in described outlet line.
Wherein in an embodiment, described compressor also comprises cover plate, this cover plate is provided with the runner for being communicated with described oil-out and described oil-in; When described oil pump pipeline is removed, described cover plate can cover and be arranged on described oil-out and described oil-in, and described oil-out is communicated with described oil-in by described runner.
Wherein in an embodiment, described compressor also comprises communicating pipe, and when described oil pump pipeline is removed, the two ends of described communicating pipe can be connected with described oil-out and described oil-in respectively.
Wherein in an embodiment, described communicating pipe is capillary.
Wherein in an embodiment, described compressor is helical-lobe compressor.
The control method of the oil pump of a kind of described compressor provided by the present invention, comprises the following steps:
Detect high-pressure and the low pressure of compressor, calculate high-low pressure according to described high-pressure and described low pressure poor;
Described height pressure reduction and setting value are compared, and controls the action of described oil pump according to comparative result.
Wherein in an embodiment, the action controlling described oil pump according to comparative result comprises:
When described height pressure reduction be more than or equal to A and duration a second time, close described oil pump;
When described height pressure reduction be less than or equal to B and duration b second time, open described oil pump;
When described height pressure reduction is less than A and is greater than B, keep the current residing state of described oil pump.
Wherein in an embodiment, b=5-10 second described in described a=.
Compared with prior art, compressor provided by the present invention is owing to have employed said structure, time when compressor is in height pressure reduction deficiency, by the fuel feeding effect of oil pump, make compressor and freeze oil energy normal circulation, compressor still can run reliably, and the simultaneously covert range of operation adding unit, makes unit have more competitive advantage on operation strategies; Affect from the efficiency of unit, when compressor height pressure reduction is higher, oil pump cuts out, and refrigeration oil, by compressor height pressure reduction auto-supply, can not produce extra power consumption, not affect the Energy Efficiency Ratio of the common operating mode of unit.In addition, because oil pump pipeline is set directly on compressor, there is the advantage that structure is simple, convenient for assembly.
Accompanying drawing explanation
Fig. 1 is the perspective view of the compressor in one of them embodiment of the present invention.
Above in each figure, 10, housing; 11, oil-out; 12, oil-in; 20, oil pump pipeline; 21, oil pump; 22, in-line; 23, outlet line; 24, check valve; 25, filter.
Detailed description of the invention
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
See Fig. 1, compressor in one of them embodiment of the present invention comprises: housing 10, this housing 10 has discharge chambe (not shown) for holding compression member and for storing the reservoir compartment's (not shown) to described discharge chambe fuel feeding, described housing 10 is provided with the oil-out 11 be connected with described reservoir compartment and the oil-in 12 that is connected with described discharge chambe, oil pump pipeline 20 is had in described housing 10 outer setting, this oil pump pipeline 20 comprises oil pump 21, the outlet line 23 being connected to the in-line 22 between the entrance point of this oil pump 21 and described oil-out and being connected between the port of export of this oil pump 21 and described oil-in 12.Compressor in the present embodiment is owing to have employed this kind of structure, time when compressor is in height pressure reduction deficiency, by the fuel feeding effect of oil pump 21, make compressor and freeze oil energy normal circulation, compressor still can run reliably, the simultaneously covert range of operation adding unit, makes unit have more competitive advantage on operation strategies; Affect from the efficiency of unit, when compressor height pressure reduction is higher, oil pump 21 cuts out, and refrigeration oil, by compressor height pressure reduction auto-supply, can not produce extra power consumption, not affect the Energy Efficiency Ratio of the common operating mode of unit.In addition, because oil pump pipeline 20 is set directly on compressor, there is the advantage that structure is simple, convenient for assembly.
More preferably, described oil pump pipeline 20 also comprises check valve 24, and this check valve 24 is connected in the two ends of described oil pump 21 in parallel, and the flow direction of this check valve 24 is consistent with the flow direction of described oil pump 21.Like this, when compressor is when height pressure reduction is enough, refrigeration oil relies on height pressure reduction fuel feeding through check valve 24.
More preferably, described oil pump pipeline 20 also comprises filter 25, and this filter 25 is connected in described outlet line 23, for filtering the impurity that may exist.
More preferably, also comprising cover plate, this cover plate being provided with the runner for being communicated with described oil-out 11 and described oil-in 12; When described oil pump pipeline 20 is removed, described cover plate can cover and be arranged on described oil-out 11 and described oil-in 12, and described oil-out 11 is communicated with described oil-in 12 by described runner.More preferably, also comprise communicating pipe, when described oil pump pipeline 20 is removed, the two ends of described communicating pipe can be connected with described oil-out 11 and described oil-in 12 respectively.Like this, when not needing to install oil pump pipeline 20, then dismountable oil pump pipeline 20, covers cover plate, and oil-out 11 is connected with oil-in 12, or directly with making oil-out 11 be connected with oil-in 12 communicating pipe, to reduce the space that compressor takies.
In another embodiment of the present invention, a kind of control method of oil pump 21 of above-mentioned compressor is provided, comprises the following steps:
Step 1, detect the high-pressure of compressor and low pressure by pressure sensor, the force value detected be input on unit allocation mainboard, it is poor that unit allocation mainboard calculates high-low pressure according to described high-pressure and described low pressure;
Described height pressure reduction and setting value compare by step 2, unit allocation mainboard, and control the action of described oil pump 21 according to comparative result.
The concrete mode of action controlling described oil pump 21 according to comparative result is as follows:
When described height pressure reduction be more than or equal to A (A gets different value according to different manufacturers compressor) and duration a second time, now compressor high pressure and be lowly pressed with enough pressure reduction, the circulation of compressor inside cold oil has enough power, refrigeration oil freely circulates, control signal is exported by unit allocation mainboard, close described oil pump 21, refrigeration oil relies on height pressure reduction fuel feeding through check valve 24;
When described height pressure reduction be less than or equal to B (B for compressor and freeze oil freely circulate required for minimum of a value, get different value according to different manufacturers compressor) and duration b second time, now compressor high pressure and low pressure do not have enough pressure reduction, if when not opening oil pump 21, compressor and freeze oil is short of power and cannot normal circulation, affect compressor reliability, therefore, now export control signal by unit mainboard, oil pump 21 is opened, refrigeration oil is after oil pump 21, refrigeration oil pressure increase, flow velocity speeds, refrigeration oil is made to rely on oil pump 21 to provide power to complete the circulation of compressor inside cold oil, and check valve 24 oil pump 21 open after because oil-in 12 side directional pressure is higher than oil-out 11 side directional pressure, check valve 24 is oppositely closed,
When described height pressure reduction is less than A and is greater than B, for preventing oil pump 21 from frequently opening, keep the current residing state of described oil pump 21.
More preferably, b=5-10 second described in described a=.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a compressor, comprise housing, this housing has discharge chambe for holding compression member and for storing the reservoir compartment to described discharge chambe fuel feeding, it is characterized in that, described housing is provided with the oil-out be connected with described reservoir compartment and the oil-in be connected with described discharge chambe, described hull outside is provided with oil pump pipeline, the outlet line that this oil pump pipeline comprises oil pump, is connected to the in-line between the entrance point of this oil pump and described oil-out and is connected between the port of export of this oil pump and described oil-in.
2. compressor according to claim 1, is characterized in that, described oil pump pipeline also comprises check valve, and this check valve is connected in the two ends of described oil pump in parallel, and the flow direction of this check valve is consistent with the flow direction of described oil pump.
3. compressor according to claim 1, is characterized in that, described oil pump pipeline also comprises filter, and this filter is connected in described outlet line.
4. compressor as claimed in any of claims 1 to 3, is characterized in that, also comprises cover plate, this cover plate is provided with the runner for being communicated with described oil-out and described oil-in; When described oil pump pipeline is removed, described cover plate can cover and be arranged on described oil-out and described oil-in, and described oil-out is communicated with described oil-in by described runner.
5. compressor as claimed in any of claims 1 to 3, is characterized in that, also comprises communicating pipe, and when described oil pump pipeline is removed, the two ends of described communicating pipe can be connected with described oil-out and described oil-in respectively.
6. compressor according to claim 5, is characterized in that, described communicating pipe is capillary.
7. compressor according to claim 1, is characterized in that, described compressor is helical-lobe compressor.
8. a control method for the oil pump of compressor as claimed in any of claims 1 to 7, is characterized in that, comprises the following steps:
Detect high-pressure and the low pressure of compressor, calculate high-low pressure according to described high-pressure and described low pressure poor;
Described height pressure reduction and setting value are compared, and controls the action of described oil pump according to comparative result.
9. method according to claim 8, is characterized in that, the action controlling described oil pump according to comparative result comprises:
When described height pressure reduction be more than or equal to A and duration a second time, close described oil pump;
When described height pressure reduction be less than or equal to B and duration b second time, open described oil pump;
When described height pressure reduction is less than A and is greater than B, keep the current residing state of described oil pump.
10. method according to claim 9, is characterized in that, b=5-10 second described in described a=.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365884.6A CN104422198B (en) | 2013-08-20 | 2013-08-20 | Compressor and control method of oil pump thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365884.6A CN104422198B (en) | 2013-08-20 | 2013-08-20 | Compressor and control method of oil pump thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104422198A true CN104422198A (en) | 2015-03-18 |
| CN104422198B CN104422198B (en) | 2018-01-19 |
Family
ID=52971908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310365884.6A Active CN104422198B (en) | 2013-08-20 | 2013-08-20 | Compressor and control method of oil pump thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN104422198B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895682A (en) * | 2020-07-10 | 2020-11-06 | 无锡职业技术学院 | Air-cooled heat pump system adopting single-unit two-stage hybrid screw compressor |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN112665222A (en) * | 2020-12-16 | 2021-04-16 | 珠海格力电器股份有限公司 | Refrigeration system and oil supply control method, device and controller thereof |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085079A (en) * | 1980-10-03 | 1982-04-21 | Dunham Bush Inc | Oil-mist lubricated meshing screw compressor |
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| JPH09100781A (en) * | 1996-07-09 | 1997-04-15 | Kobe Steel Ltd | Oil cooled type compressor |
| JP2003003961A (en) * | 2001-06-20 | 2003-01-08 | Fujitsu General Ltd | Hermetic compressor |
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| CN203488381U (en) * | 2013-08-20 | 2014-03-19 | 珠海格力电器股份有限公司 | Compressor |
-
2013
- 2013-08-20 CN CN201310365884.6A patent/CN104422198B/en active Active
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| GB2085079A (en) * | 1980-10-03 | 1982-04-21 | Dunham Bush Inc | Oil-mist lubricated meshing screw compressor |
| JPS63179193A (en) * | 1987-01-21 | 1988-07-23 | Hitachi Ltd | Scroll type compressor |
| JPH09100781A (en) * | 1996-07-09 | 1997-04-15 | Kobe Steel Ltd | Oil cooled type compressor |
| JP2003003961A (en) * | 2001-06-20 | 2003-01-08 | Fujitsu General Ltd | Hermetic compressor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN111895682A (en) * | 2020-07-10 | 2020-11-06 | 无锡职业技术学院 | Air-cooled heat pump system adopting single-unit two-stage hybrid screw compressor |
| CN112665222A (en) * | 2020-12-16 | 2021-04-16 | 珠海格力电器股份有限公司 | Refrigeration system and oil supply control method, device and controller thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104422198B (en) | 2018-01-19 |
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