CN200989703Y - Air conditioner system oil separator auxiliary device - Google Patents
Air conditioner system oil separator auxiliary device Download PDFInfo
- Publication number
- CN200989703Y CN200989703Y CN 200620162158 CN200620162158U CN200989703Y CN 200989703 Y CN200989703 Y CN 200989703Y CN 200620162158 CN200620162158 CN 200620162158 CN 200620162158 U CN200620162158 U CN 200620162158U CN 200989703 Y CN200989703 Y CN 200989703Y
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- oil
- compressor
- oil return
- auxiliary device
- air
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Abstract
The utility model relates to an auxiliary device of oil separator of air conditioning system which is composed of a compressor, an oil separator and an oil return capillary, a branch tube and the oil return capillary are connected in parallel between the oil outlet of the oil separator of the air discharge side of the compressor and the air suction tube of the compressor, the branch tube is connected with an solenoid valve in series. The solenoid valve and the discharge valve of the air-conditioning system are combined to a whole. The utility model can effectively solve the contradiction that the variable-frequency or variable-capacity air conditioning system ensures the normal oil return of the compressor and also realizes high EER/COP and good refrigerating and heating effect. The discharge valve in the system and the solenoid valve in the device can be incorporated to a whole, so as to optimize the oil return effect of the compressor, however the system cost has no any addition.
Description
Technical field
The utility model relates to air-conditioning system, especially relates to the oil return servicing unit of the oil eliminator of frequency conversion in the air-conditioning system or variable conpacitance compressor.
Background technology
Lubricating oil in the compressor of air conditioner is very important to the normal operation of compressor, all must guarantee in the compressor sufficient lubricating oil is arranged in any moment of operation of air conditioner.
During the air-conditioning unit operation, lubricating oil in the compressor can be brought in each indoor set and the pipe arrangement along with the circulation of cold-producing medium, if the compressor lubricant oil that is pulled away can not be got back in the compressor in time, then the lubricating oil in the compressor can be fewer and feweri, motion contact components such as the bearing in the compressor, spiral dish will cause heavy wear because of the oil starvation running, thereby cause compressor card cylinder, seize, burning coil, make compressor damage.Therefore, must guarantee the normal effectively oil return of compressor during the air-conditioning unit operation.At present, the many big-and-middle-sized air-conditioning system on the market generally adopts lower-cost oil return apparatus, i.e. the oil return apparatus that is used in combination with the oil return capillary of oil eliminator.In the system that uses invariable frequency compressor, the oil extraction rate during compressor operating is certain basically, therefore uses this device can satisfy the demand of compressor oil return in the larger context in fixed system frequently.But, in the system that uses frequency conversion or variable conpacitance compressor, when the frequency of compressor operating or volume change, the oil extraction rate of compressor will be along with variation, that is: when compressor frequency or capacity rising, the oil extraction rate just raises, and the compressor lubricant oil of discharging from compressor is just many more; When compressor frequency or capacity reduction, the oil extraction rate just reduces, and the compressor lubricant oil of discharging from compressor is just few more.Therefore, in the system that uses frequency conversion or variable conpacitance compressor, the simple oil return capillary that adopts an oil eliminator and a certain specification, can satisfy this compressor operating in a certain frequency or the oil return demand below a certain capacity, and the oil return demand the when demand that is difficult under any circumstance all satisfy the compressor oil return, especially compressor high-frequency or the running of big capacity; If by adopting the oil return capillary of big specification, can satisfy the demand of compressor oil return under various ruuning situations, but be equivalent between compressor low pressure and high pressure, be added with a unloading so always, the EER/COP of whole system is significantly reduced, cooling or heating effect is descended.
In the air-conditioning system of using frequency conversion or variable conpacitance compressor and conventional oil separator, guarantee that good and high EER/COP of assurance system of compressor oil return and cooling or heating effect well are a contradiction.In order to guarantee EER/COP and cooling or heating effect preferably, use the less oil return capillary of specification, and can not satisfy the oil return demand of compressor operating when upper frequency or big capacity (the oil extraction rate is bigger); EER/COP when moving with sacrificial system and cooling or heating effect are cost, oil return capillary by adopting big specification is to satisfy the oil return demand of compressor under highest frequency or heap(ed) capacity, to satisfy the oil return demand of compressor operating under any frequency or capacity.
Adopt oil eliminator to add oil return air-conditioning system capillaceous; be the isolated lubricating oil of oil eliminator to be got back in the compressor by the oil return capillary; if the unit installation and maintenance enter a little moisture or foreign matter; the oil return capillary is stopped up by foreign matter or that ice takes place is stifled with regard to as easy as rolling off a log; at this time compressor lubricant oil just can't normally be got back to compressor and suffered, and long compressor of time one will damage because of the oil starvation running.
Summary of the invention
The purpose of this utility model is to propose a kind of oil eliminator auxiliary device of air conditioning system, guaranteeing under the good condition of high EER/COP of air-conditioning system and cooling or heating effect, can either satisfy the oil return demand of compressor under highest frequency or heap(ed) capacity, satisfy the oil return demand of compressor operating under any frequency or capacity again.
The purpose of this utility model adopts following scheme to realize, form by compressor, oil eliminator and oil return capillary according to oil eliminator auxiliary device of air conditioning system of the present utility model, it is characterized in that, between the oil-out and compressor suction duct of the oil eliminator of compressor air-discharging side, with the oil return capillary paralleling one arm is set, magnetic valve of polyphone on this arm.
The feather valve of described magnetic valve and air-conditioning system is merged into one, controls the function that this magnetic valve is realized unloading or oil return respectively by program.
This oil eliminator auxiliary device comprises that is also looked a liquid pipe, vertically is arranged between the oil-out and gas outlet of oil eliminator.
The described liquid pipe of looking is transparent pipe, so that the oil return situation is observed in experiment.
Oil eliminator auxiliary device in the utility model; can effectively solve frequency conversion or capacity-variable air conditioner system and guarantee contradiction between the normal oil return of compressor and the high EER/COP of realization and the good cooling or heating effect; promptly guarantee air-conditioning system under high EER/COP running status, compressor can access sufficient oil return.When guaranteeing the compressor oil return, the EER/COP when the raising system moves, the cooling and warming ability of increase system.
Feather valve in the system can and be one with magnetic valve in this device, when the magnetic valve in this system is carried out Unloading Control, also realized the quick oil return of compressor simultaneously, thereby further optimized the oil return effect of compressor, and system cost is without any increase.
Description of drawings
Fig. 1 is the schematic diagram of oil eliminator auxiliary device of the present utility model.
Wherein
11 compressors, 14 magnetic valves
12 oil eliminators, 15 oil return capillaries
13 look liquid pipe 16 arms
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated, Fig. 1 is the schematic diagram of oil eliminator auxiliary device of the present utility model, as shown in the figure, between the oil-out of the oil eliminator 12 of the exhaust side of compressor 11 and compressor 11 air intake ducts with magnetic valve 14 of arm 16 polyphones, this magnetic valve 14 is because of possessing the feature of feather valve in the air-conditioning system, therefore after adopting this device, feather valve in the system can be merged into one with the magnetic valve 14 in this device, controls the function that it realizes unloading or oil return respectively by program; Oil return capillary 15 in this device is connected in parallel on the same loop by arm 16 and magnetic valve.
The method for controlling oil return of oil eliminator auxiliary device of air conditioning system of the present utility model comprises oil return selected and the cycle of magnetic valve unlatching and the control of duration capillaceous.
Determining of oil return capillary specification: when feather valve cuts out, carry out cooling and warming ability and EER/COP test, by changing different specifications capillaceous, determine system's oil return specification capillaceous when cooling and warming ability performance the best, EER/COP the highest (or comprehensively weighing best performance) just, as oil return definite specification capillaceous.
The control method of servicing unit is determined: after determining oil return capillary specification, the checking (during checking must by liquid-sighting glass, look special device such as liquid pipe) that experimentizes determines that oil return capillary oil return ability just and compressor frequency f or capacity v during compressor oil drainage rate balance.So the oil extraction characteristic by compressor just can know, less than f or capacity during less than v, oil return oil return ability capillaceous is enough at compressor frequency, and at this moment magnetic valve 14 only carries out Unloading Control and gets final product; And at compressor frequency greater than f or capacity during greater than v, the oil return ability of oil return capillary 15 is then not enough, the oil mass of compressor 11 discharges at this moment will be greater than the oil mass of getting back to compressor from oil return capillary 15, just must regularly open certain hour in this case by control unloading magnetic valve 14, the oil of separating in the oil eliminator 12 is got back to rapidly in the compressor 11, to guarantee having sufficient lubricating oil in the compressor.
In this servicing unit, when the oil return ability of oil return capillary 15 was then not enough, cycle and duration that control unloading magnetic valve 14 is opened need be determined by experiment.By the oil extraction characteristic of frequency conversion or variable conpacitance compressor as can be known, should be under the situation of compressor oil drainage amount maximum, the magnetic valve that experimentizes definite is opened cycle and duration, as long as because the oil return of magnetic valve 14 control can be satisfied the oil return requirement when the compressor oil drainage rate is maximum, the oil return demand under other ruuning situations also can satisfy certainly; In fact, the unlatching cycle of magnetic valve 14 and duration are provided with also can divide frequency band or capacity section to segment, for example: at compressor operating during in higher frequency band or capacity section, because the compressor oil drainage rate is bigger, the cycle that magnetic valve is opened just need establish shortly, and the opening time establishes longerly; During in lower frequency band or capacity section, because the compressor oil drainage rate is less, the cycle that magnetic valve is opened just need establish longerly at compressor operating, and the opening time establishes to such an extent that lack.The unlatching cycle of the magnetic valve of each frequency band setting and duration all need to be determined by experiment, and purpose all is under the situation that guarantees the normal oil return of compressor, fully guarantees the EER/COP and the cooling or heating effect of system.
According to an embodiment of the present utility model, in a compressor running frequency scope is in the air-conditioning of 30-120HZ, in advance look liquid pipe 13 with one and vertically be arranged between the oil-out and gas outlet of oil eliminator 12, this is looked liquid pipe 13 and is special transparent pipe, so that the oil return situation is observed in experiment.When experimentizing,, make this air-conditioning obtain best EER/COP and best cooling or heating effect, thereby determine oil return this moment capillary specification earlier by adjusting the specification of oil return capillary 15.For example, determine that specification is: internal diameter 1.2mm, length 1400mm.After having determined oil return capillary specification, begin to raise gradually compressor frequency from 30HZ, and observation and oil eliminator 12 liquid levels of vertically looking in the liquid pipe 13 in parallel change, when liquid level in the pipe is constant substantially, this oil return capillary 15 has reached its maximum oil return ability, at this moment if raising frequency then can cause the oil return scarce capacity of oil return capillary 15 again, the frequency during like this with regard to definite oil return capillary 15 oil return abilities and compressor 11 oil extraction rate balances is 85HZ.So during less than 85HZ, the magnetic valve 14 in this servicing unit is just as oil return control at compressor frequency.During greater than 85HZ, the magnetic valve 14 in this servicing unit just must regularly be opened certain hour, to guarantee the oil return of compressor 11 in frequency.According to frequency-changeable compressor oil extraction characteristic, if the oil return demand that can satisfy compressor at 120HZ also must satisfy between the 85-120HZ.Therefore, when experiment, compressor frequency is decided to be 120HZ, the liquid level that observation is looked in the liquid pipe 13 changes, when liquid level will reach the escape pipe inlet port height of oil eliminator 12 in looking liquid pipe 13, magnetic valve is opened, and the liquid level in looking the liquid pipe is reduced to the height of the oil-out position of oil eliminator 12 and is closed magnetic valve again.By above-mentioned magnetic valve being opened constantly and closed electromagnetic valve calculating constantly, determine the duration that magnetic valve is opened, by the time of opening once more behind the closed electromagnetic valve, determine the magnetic valve unlatching cycle, when experiment just can determine that the compressor operating frequency is between 85-120HZ repeatedly like this, the best of magnetic valve was opened cycle and duration.For example, according to experimental result, set magnetic valve and opened the demand that just can satisfy the compressor oil return in 20 seconds every 50 minutes.
This servicing unit is according to the method for frequency band or capacity section control, dividing frequency band or the above-mentioned example of capacity Duan Houyu is basic identical, repeats no more herein.
The above is preferred embodiment of the present utility model only, is not to be used for limiting the scope that the utility model is implemented.So all doing according to the described structure of the utility model application range, feature and spirit all is equivalent variations or modification, all should be included within the claim of the present utility model.
Claims (6)
1. oil eliminator auxiliary device of air conditioning system, form by compressor, oil eliminator and oil return capillary, it is characterized in that, between the oil-out and compressor suction duct of the oil eliminator of compressor air-discharging side, one arm is set, this arm and oil return capillary paralleling, magnetic valve of polyphone on it.
2. oil eliminator auxiliary device according to claim 1 is characterized in that, the feather valve of described magnetic valve and air-conditioning system is merged into one.
3. oil eliminator auxiliary device according to claim 1 is characterized in that, also comprises looking the liquid pipe, vertically is arranged between the oil-out and gas outlet of oil eliminator.
4. oil eliminator auxiliary device according to claim 1 is characterized in that, also comprises a liquid-sighting glass, vertically is arranged between the oil-out and gas outlet of oil eliminator.
5. oil eliminator auxiliary device according to claim 3 is characterized in that, the described liquid pipe of looking is transparent pipe, is used to observe the oil return situation of oil eliminator.
6. oil eliminator auxiliary device according to claim 4 is characterized in that described liquid-sighting glass is a transparent mirror, is used to observe the oil return situation of oil eliminator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620162158 CN200989703Y (en) | 2006-12-14 | 2006-12-14 | Air conditioner system oil separator auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620162158 CN200989703Y (en) | 2006-12-14 | 2006-12-14 | Air conditioner system oil separator auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200989703Y true CN200989703Y (en) | 2007-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620162158 Expired - Fee Related CN200989703Y (en) | 2006-12-14 | 2006-12-14 | Air conditioner system oil separator auxiliary device |
Country Status (1)
| Country | Link |
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| CN (1) | CN200989703Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173656B (en) * | 2006-10-30 | 2011-07-13 | 海尔集团公司 | Oil eliminator auxiliary device of air conditioning system and control method thereof |
| CN104748427A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Unloading component for multi-split system and multi-split system with same |
| CN106382769A (en) * | 2016-11-11 | 2017-02-08 | 珠海格力电器股份有限公司 | Compressor system and compressor control method |
| CN106440436A (en) * | 2016-11-17 | 2017-02-22 | 珠海格力电器股份有限公司 | Air conditioner system and compressor oil return structure thereof |
| CN109373635A (en) * | 2018-10-29 | 2019-02-22 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner oil returning control method, device and air conditioner |
| CN109579348A (en) * | 2018-12-04 | 2019-04-05 | 宁波工程学院 | The multi-functional multi-joint dry type capillary radiation heat pump unit of one kind and its control method |
| CN111256388A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Refrigeration system |
| CN111623558A (en) * | 2020-04-29 | 2020-09-04 | 青岛海尔空调电子有限公司 | Air conditioning system |
-
2006
- 2006-12-14 CN CN 200620162158 patent/CN200989703Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173656B (en) * | 2006-10-30 | 2011-07-13 | 海尔集团公司 | Oil eliminator auxiliary device of air conditioning system and control method thereof |
| CN104748427A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Unloading component for multi-split system and multi-split system with same |
| CN106382769A (en) * | 2016-11-11 | 2017-02-08 | 珠海格力电器股份有限公司 | Compressor system and compressor control method |
| CN106440436A (en) * | 2016-11-17 | 2017-02-22 | 珠海格力电器股份有限公司 | Air conditioner system and compressor oil return structure thereof |
| CN106440436B (en) * | 2016-11-17 | 2022-11-25 | 珠海格力电器股份有限公司 | Air conditioning system and compressor oil return structure thereof |
| CN109373635A (en) * | 2018-10-29 | 2019-02-22 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner oil returning control method, device and air conditioner |
| CN109373635B (en) * | 2018-10-29 | 2020-07-31 | 宁波奥克斯电气股份有限公司 | Air conditioner oil return control method and device and air conditioner |
| CN111256388A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Refrigeration system |
| CN111256388B (en) * | 2018-11-30 | 2021-10-19 | 广东美芝精密制造有限公司 | Refrigeration system |
| CN109579348A (en) * | 2018-12-04 | 2019-04-05 | 宁波工程学院 | The multi-functional multi-joint dry type capillary radiation heat pump unit of one kind and its control method |
| CN111623558A (en) * | 2020-04-29 | 2020-09-04 | 青岛海尔空调电子有限公司 | Air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: QINGDAO HAIER AIR-CONDITIONER ELECTRONICS CO., LTD. ^ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Qingdao Haier air conditioning Electronics Co., Ltd. Number: 50 Page: The title page Volume: 23 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Qingdao Haier air conditioning Electronics Co., Ltd. Number: 50 Volume: 23 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ^ TO: QINGDAO HAIER AIR-CONDITIONER ELECTRONICS CO., LTD. ^ |
|
| DD01 | Delivery of document by public notice |
Addressee: haier group corporation Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: haier group corporation Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20141214 |
|
| EXPY | Termination of patent right or utility model |