CN104422198B - The control method of compressor and its oil pump - Google Patents
The control method of compressor and its oil pump Download PDFInfo
- Publication number
- CN104422198B CN104422198B CN201310365884.6A CN201310365884A CN104422198B CN 104422198 B CN104422198 B CN 104422198B CN 201310365884 A CN201310365884 A CN 201310365884A CN 104422198 B CN104422198 B CN 104422198B
- Authority
- CN
- China
- Prior art keywords
- oil
- oil pump
- compressor
- pressure difference
- housing
- 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.)
- Active
Links
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 the control method of a kind of compressor and its oil pump, compressor includes housing, the housing is with the discharge chambe for being used to accommodate compression member and for storing to the reservoir compartment of discharge chambe fuel feeding, the oil-out being connected with the reservoir compartment and the oil inlet being connected with the discharge chambe are provided with the housing, the hull outside is provided with oil pump pipeline, the oil pump pipeline includes oil pump, the in-line being connected between the entrance point of the oil pump and the oil-out and the outlet line being connected between the port of export of the oil pump and the oil inlet.Compressor provided by the present invention is as a result of said structure, when compressor is when in the case of height pressure difference deficiency, acted on by the fuel feeding of oil pump, make compressor and freeze oil energy normal circulation, compressor remains to reliably run, the simultaneously covert range of operation for adding unit, unit is set to have more competitive advantage on operation strategies.Moreover, also there is the advantages of simple in construction, convenient for assembly.
Description
Technical field
The present invention relates to field of air conditioning, a kind of method circulated more particularly to compressor and compressor oil.
Background technology
In the market, the application of compressor can all have a range of operation or requirement, and compressor operating scope is from reliability
Upper consideration, influence the factor of compressor reliability have it is a variety of, wherein, it is ensured that the oil circulation of compressor inside cold, and then ensure
The normal lubrication of compressor internal moving parts and the normal work for adding unloading part, this is the master for influenceing compressor reliability
Want one of factor.
In current large-scale handpiece Water Chilling Units (such as air-cooled screw, water-cooling screw rod), in high pressure cavity compressor (helical-lobe compressor)
The circulation power of portion's refrigeration oil fully relies between compressor high pressure, low pressure pressure differential (high pressure-low pressure) to provide, when compressor height
(such as air-cooled screw, for source pump, during heating, when environment temperature is very low, water side temperature can during startup when low voltage difference is relatively low
Can be also very low, heating capacity is relatively low, and water temperature, condensing pressure can not be improved quickly, and high pressure and low-voltage differential are relatively low；Made for whole year
Cold single cooler group, when the temperature of the surroundings is low, high-pressure may be relatively low, height pressure difference deficiency), compressor and freeze oil circulation
It is short of power, compressor may be caused to be lubricated without enough refrigeration oils, causes compressor to burn, the anomaly such as abnormal sound, serious shadow
Unit reliability is rung, especially for the unit that refrigerant is R134a, because R134a pressure is relatively lower, height pressure difference deficiency
Phenomenon be easier occur, at this moment, it is common practice to which limiting the range of operation of compressor makes compressor under low height pressure difference
Do not run or take a risk to allow compressor operating, which kind of method no matter taken, user's actual need or influence can not be met by occurring
The phenomenon of unit reliability.
The content of the invention
For above-mentioned state of the art, the technical problems to be solved by the invention are, there is provided a kind of compressor, its
Height pressure difference can meet compressor oil-supplying requirement when relatively low, to reach extension unit under low ambient temperature, low inflow temperature
Range of operation, unit is set to be run reliably and with long-term under extreme operating condition.Another technical problem to be solved by this invention is, carries
For a kind of control method of the oil pump of compressor.
In order to solve the above-mentioned technical problem, a kind of compressor provided by the present invention, including housing, the housing, which has, to be used for
Accommodate the discharge chambe of compression member and for storing to the reservoir compartment of the discharge chambe fuel feeding, be provided with the housing with it is described
Oil-out that reservoir compartment is connected and the oil inlet being connected with the discharge chambe, oil pump pipe is provided with the hull outside
Road, the oil pump pipeline include oil pump, the in-line being connected between the entrance point of the oil pump and the oil-out and connection
Outlet line between the port of export and the oil inlet of the oil pump.
In one of the embodiments, the oil pump pipeline also includes check valve, and the check valve is connected in the oil in parallel
The both ends of pump, and the flow direction of the check valve is consistent with the flow direction of the oil pump.
In one of the embodiments, the oil pump pipeline also includes filter, and the filter is connected to the flowline
Lu Shang.
In one of the embodiments, described compressor also includes cover plate, is provided with the cover plate described for connecting
The runner of oil-out and the oil inlet；When the oil pump pipeline is removed, the cover plate can be covered installed in the oil-out
On the oil inlet, and the runner connects the oil-out with the oil inlet.
In one of the embodiments, described compressor also includes communicating pipe, described when the oil pump pipeline is removed
The both ends of communicating pipe can be connected with the oil-out and the oil inlet respectively.
In one of the embodiments, the communicating pipe is capillary.
In one of the embodiments, the compressor is helical-lobe compressor.
A kind of control method of the oil pump of described compressor provided by the present invention, comprises the following steps：
The high-pressure and low pressure of compressor are detected, height is calculated according to the high-pressure and the low pressure
Pressure difference；
By the height pressure difference compared with setting value, and according to the action of the comparative result control oil pump.
In one of the embodiments, the action for controlling the oil pump according to comparative result includes：
When the height pressure difference is more than or equal to A and second duration a, the oil pump is closed；
When the height pressure difference is less than or equal to B and second duration b, the oil pump is opened；
When the height pressure difference is less than A and when being more than B, the state for keeping the oil pump to be presently in.
In one of the embodiments, the b=5-10 seconds described in the a=.
Compared with prior art, compressor provided by the present invention is as a result of said structure, when compressor is in height
When in the case of pressure difference deficiency, acted on by the fuel feeding of oil pump, make compressor and freeze oil energy normal circulation, compressor remains to reliably
Operation, while the covert range of operation for adding unit makes unit have more competitive advantage on operation strategies；From to unit
Efficiency influence to see, when compressor height pressure difference is higher, oil pump is closed, and refrigeration oil supplies automatically by compressor height pressure difference
Oil, will not produce extra power consumption, not influence the Energy Efficiency Ratio of the common operating mode of unit.Further, since oil pump pipeline is set directly at pressure
On contracting machine, there is the advantages of simple in construction, convenient for assembly.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the compressor in the one of embodiment of the present invention.
More than in each figure, 10, housing；11st, oil-out；12nd, oil inlet；20th, oil pump pipeline；21st, oil pump；22nd, oil inlet pipe
Road；23rd, outlet line；24th, check valve；25th, filter.
Embodiment
Below with reference to the accompanying drawings and the present invention is described in detail in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in following embodiment and embodiment can be mutually combined.
Referring to Fig. 1, the compressor in the one of embodiment of the present invention includes：Housing 10, the housing 10, which has, to be used to hold
Receive compression member discharge chambe (not shown) and for store to the discharge chambe fuel feeding reservoir compartment's (not shown),
The oil-out 11 being connected with the reservoir compartment and the oil inlet 12 that is connected with the discharge chambe are provided with the housing 10,
Oil pump pipeline 20 is provided with outside the housing 10, the oil pump pipeline 20 includes oil pump 21, is connected to the entrance point of the oil pump 21
In-line 22 between the oil-out and it is connected to going out between the port of export of the oil pump 21 and the oil inlet 12
Oil pipe line 23.Compressor in the present embodiment is as a result of such a structure, when compressor is in the case of height pressure difference deficiency
When, acted on by the fuel feeding of oil pump 21, make compressor and freeze oil energy normal circulation, compressor remains to reliably run, same to time-varying
The range of operation for adding unit of phase, unit is set to have more competitive advantage on operation strategies；Influenceed from the efficiency on unit
See, when compressor height pressure difference is higher, oil pump 21 is closed, and refrigeration oil leans on compressor height pressure difference auto-supply, will not produce
Extra power consumption, the Energy Efficiency Ratio of the common operating mode of unit is not influenceed.Further, since oil pump pipeline 20 is set directly on compressor, tool
There is the advantages of simple in construction, convenient for assembly.
More preferably, the oil pump pipeline 20 also includes check valve 24, and the check valve 24 is connected in the oil pump 21 in parallel
Both ends, and the flow direction of the check valve 24 is consistent with the flow direction of the oil pump 21.So, when compressor is in the enough feelings of height pressure difference
When under condition, refrigeration oil relies on height pressure difference fuel feeding by check valve 24.
More preferably, the oil pump pipeline 20 also includes filter 25, and the filter 25 is connected in the outlet line 23,
For filtering impurity that may be present.
More preferably, in addition to cover plate, it is provided with the cover plate for connecting the oil-out 11 and the oil inlet 12
Runner；When the oil pump pipeline 20 is removed, the cover plate can be covered on the oil-out 11 and the oil inlet 12,
And the runner connects the oil-out 11 with the oil inlet 12.More preferably, in addition to communicating pipe, when the oil pump pipeline
During 20 dismounting, the both ends of the communicating pipe can be connected with the oil-out 11 and the oil inlet 12 respectively.So, when need not
When installing oil pump pipeline 20, then dismountable oil pump pipeline 20, covers cover plate, oil-out 11 is connected with oil inlet 12, or directly
Connect with making oil-out 11 be connected with oil inlet 12 communicating pipe, to reduce the space of compressor occupancy.
In another embodiment of the present invention, there is provided a kind of control method of the oil pump 21 of above-mentioned compressor, including following step
Suddenly：
Step 1, high-pressure and low pressure by pressure sensor detection compressor, the pressure value detected is defeated
Enter onto unit allocation mainboard, unit allocation mainboard is poor according to the high-pressure and low pressure calculating high-low pressure；
The height pressure difference is controlled institute by step 2, unit allocation mainboard compared with setting value, and according to comparative result
State the action of oil pump 21.
Controlled the action concrete mode of the oil pump 21 as follows according to comparative result：
When the height pressure difference is more than or equal to A (A takes different value according to different manufacturers compressor) and second duration a
When, now compressor high pressure and low pressure have enough pressure differences, and the oil circulation of compressor inside cold has enough power, refrigeration oil freedom
Circulation, by unit allocation mainboard output control signal, closes the oil pump 21, refrigeration oil relies on high-low pressure by check valve 24
Poor fuel feeding；
When the height pressure difference be less than or equal to B (B be compressor and freeze oil freely circulates required for minimum value, according to
Different manufacturers compressor and take different value) and during second duration b, now compressor high pressure and low pressure do not have enough pressure differences, if
When being not turned on oil pump 21, compressor and freeze oil be short of power and can not normal circulation, influence compressor reliability, therefore, now
Oil pump 21 can be opened by unit mainboard output control signal, refrigeration oil is after oil pump 21, freezing oil pressure increase, stream
Speed is speeded, and refrigeration oil is provided power by oil pump 21 and is completed the oily circulation of compressor inside cold, and check valve 24 is in oil pump
Because the side direction pressure of oil inlet 12 is higher than the side direction pressure of oil-out 11 after 21 unlatchings, check valve 24 is reversely closed；
When the height pressure difference is less than A and is more than B, to prevent oil pump 21 from frequently opening, keep the oil pump 21 current
State in which.
More preferably, the b=5-10 seconds described in the a=.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (5)
1. a kind of compressor, including housing, the housing is with the discharge chambe for being used to accommodate compression member and for storing to described
The reservoir compartment of discharge chambe fuel feeding, it is characterised in that be provided with the housing oil-out that is connected with the reservoir compartment and with
The oil inlet that the discharge chambe is connected, the hull outside is provided with oil pump pipeline, the oil pump pipeline includes oil pump, connection
In-line between the entrance point and the oil-out of the oil pump and it is connected to the port of export of the oil pump and the oil-feed
Outlet line between mouthful；Also include cover plate, the stream for connecting the oil-out and the oil inlet is provided with the cover plate
Road；When the oil pump pipeline is removed, the cover plate can be covered on the oil-out and the oil inlet, and the stream
Road connects the oil-out with the oil inlet；The oil pump pipeline also includes filter, the filter be connected to it is described go out
On oil pipe line.
2. compressor according to claim 1, it is characterised in that the oil pump pipeline also includes check valve, the check valve
It is connected in the both ends of the oil pump in parallel, and the flow direction of the check valve is consistent with the flow direction of the oil pump.
3. compressor according to claim 1, it is characterised in that the compressor is helical-lobe compressor.
A kind of 4. control method of the oil pump of compressor as claimed in any of claims 1 to 3, it is characterised in that
Comprise the following steps：
The high-pressure and low pressure of compressor are detected, high-low pressure is calculated according to the high-pressure and the low pressure
Difference；
By the height pressure difference compared with setting value, and according to the action of the comparative result control oil pump；According to comparing
The action of oil pump described in output control includes：
When the height pressure difference is more than or equal to A and second duration a, the oil pump is closed；
When the height pressure difference is less than or equal to B and second duration b, the oil pump is opened；
When the height pressure difference is less than A and when being more than B, the state for keeping the oil pump to be presently in.
5. according to the method for claim 4, it is characterised in that duration b=5-10 described in the duration a=
Second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365884.6A CN104422198B (en) | 2013-08-20 | 2013-08-20 | The control method of compressor and its oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365884.6A CN104422198B (en) | 2013-08-20 | 2013-08-20 | The control method of compressor and its oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104422198A CN104422198A (en) | 2015-03-18 |
| CN104422198B true 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 | The control method of compressor and its oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104422198B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017214941A1 (en) | 2017-08-25 | 2019-02-28 | Dometic Sweden Ab | Recreational vehicle, cooling device, control system and method of 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 |
| CN111895682B (en) * | 2020-07-10 | 2021-11-02 | 无锡职业技术学院 | Air-cooled heat pump system adopting single-unit two-stage hybrid screw compressor |
| CN112665222B (en) * | 2020-12-16 | 2022-08-02 | 珠海格力电器股份有限公司 | Refrigeration system and oil supply control method, device and controller thereof |
Citations (5)
| 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 |
| CN2906104Y (en) * | 2006-04-30 | 2007-05-30 | 周书田 | Oil pumping system assembly |
| CN1987295A (en) * | 2005-12-21 | 2007-06-27 | 三星电子株式会社 | Refrigeration system |
| CN202947372U (en) * | 2012-12-07 | 2013-05-22 | 昆山台佳机电有限公司 | High-efficient oil cooling device with gas-liquid separation |
| CN203488381U (en) * | 2013-08-20 | 2014-03-19 | 珠海格力电器股份有限公司 | Compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076513B2 (en) * | 1987-01-21 | 1995-01-30 | 株式会社日立製作所 | Mounting structure of refueling pipe in scroll compressor |
| JPH09100781A (en) * | 1996-07-09 | 1997-04-15 | Kobe Steel Ltd | Oil cooled type compressor |
| JP4513238B2 (en) * | 2001-06-20 | 2010-07-28 | 株式会社富士通ゼネラル | Hermetic compressor |
| JP3983052B2 (en) * | 2002-01-09 | 2007-09-26 | カルソニックコンプレッサー株式会社 | Gas compressor |
| CN101514854A (en) * | 2009-01-13 | 2009-08-26 | 浙江盾安机电科技有限公司 | Energy-saving type high-temperature water chilling unit |
-
2013
- 2013-08-20 CN CN201310365884.6A patent/CN104422198B/en active Active
Patent Citations (5)
| 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 |
| CN1987295A (en) * | 2005-12-21 | 2007-06-27 | 三星电子株式会社 | Refrigeration system |
| CN2906104Y (en) * | 2006-04-30 | 2007-05-30 | 周书田 | Oil pumping system assembly |
| CN202947372U (en) * | 2012-12-07 | 2013-05-22 | 昆山台佳机电有限公司 | High-efficient oil cooling device with gas-liquid separation |
| CN203488381U (en) * | 2013-08-20 | 2014-03-19 | 珠海格力电器股份有限公司 | Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104422198A (en) | 2015-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104422198B (en) | The control method of compressor and its oil pump | |
| CN101813396B (en) | Air conditioning unit and method for detecting oil level of compressor thereof | |
| CN102003822B (en) | Air-cooling cold water unit and control method thereof | |
| CN204006853U (en) | Air-conditioning system | |
| CN209054812U (en) | A kind of magnetic suspension water cooler compressor cooling system | |
| CN105485989A (en) | Two-stage compression air conditioning system and air compensating control method thereof | |
| CN102889706B (en) | Compression refrigeration condensation system with low-temperature startup and low-temperature operation | |
| EP2715254A2 (en) | Hybrid compressor system and methods | |
| CN104315739A (en) | Liquid cooling machine with double condensation and double heat dissipation | |
| CN107576109A (en) | The control method and heat pump of heat pump | |
| CN207598512U (en) | Screw air compressor cooling system | |
| CN102788402B (en) | Control method of air conditioning refrigerant circulation system and air conditioning system | |
| CN202915592U (en) | Fluid cold source system using condensing heat and air cooling to self-adapt to refrigerating capacity | |
| CN104417322B (en) | Automotive air-conditioning system and there is its automobile | |
| CN202581983U (en) | Device for controlling oil temperature of compressor | |
| CN106704195A (en) | Screw air compressor waste heat recovery device | |
| CN105066494A (en) | Nuclear-grade direct evaporation combined type air handling unit and control method thereof | |
| CN205619430U (en) | Air -conditioner | |
| CN204513833U (en) | A kind of novel hybrid refrigeration device | |
| CN208846772U (en) | A kind of energy-saving cooler | |
| CN106593871A (en) | Working method for 37 KW screw type compressor, refrigerating machine and filter system | |
| CN103162460A (en) | Hydraulic filling type screw water-cooled cold water and heat pump unit | |
| CN206488407U (en) | A kind of water source heat pump units device | |
| CN104251581A (en) | Pump start control method, pump start control device, pump start control system and refrigerating system | |
| CN104896654A (en) | A control method for rapid loading of a refrigeration station unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |