CN2665406Y - Air conditioner capable of realizing timing oil adjusting treatment - Google Patents
Air conditioner capable of realizing timing oil adjusting treatment Download PDFInfo
- Publication number
- CN2665406Y CN2665406Y CN 200320106977 CN200320106977U CN2665406Y CN 2665406 Y CN2665406 Y CN 2665406Y CN 200320106977 CN200320106977 CN 200320106977 CN 200320106977 U CN200320106977 U CN 200320106977U CN 2665406 Y CN2665406 Y CN 2665406Y
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- compressor
- oil
- scale
- compressors
- outdoor unit
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Abstract
The utility model discloses an air-conditioner which can achieve timing oil-balancing treatment. The outdoor unit of the utility model comprises at least one inverter compressor which is connected in parallel with other compressors. The low-pressure cavity of each compressor is provided with a first graduation and a second graduation. Corresponded to the first graduation, an oil-balancing pipe is arranged in each compressor and an electromagnetic valve is arranged on the oil-balancing pipe; the oil-balancing pipes of all the compressors are communicated into a circulatory loop passage. The air-conditioner can automatically achieve the function of balanced assigning of lubricating oil after the compressors has run for some time.
Description
Technical field
The utility model relates to a kind of modularization multi-unit air conditioner, specifically can regularly be lubricated the structural design of oily equilibrium treatment.
Background technique
Along with the raising of present working environment and residential quarters measure condition, various intelligent modularized central air-conditioner have obtained more use.At the difference of house type or different floor room-size, this type of intelligent modularized air-conditioner all can dispose many frequency conversions and invariable frequency compressor usually, to adapt to the variation of office work ability need.One or a few compressor are worked simultaneously often, or adapt to the variation of exporting energy work rate by the frequency change of frequency-changeable compressor.
Change though the multiple compressors that existing central air-conditioner adopted can adapt to the demand of office work energy consumption, the running state of multiple compressors can not keep in full accord after all.Relate to lubricated compression chamber and form the lubricant oil of oil sealing, when carrying out work cycle with the refrigeration agent in the air-conditioning unit, often occurring can not be according to quantity or be back to problem in all compressors in proportion.Just at unit operation after a period of time, can not get effectively compensation and cause the potential safety hazard that the lubricant oil vector is big even wretched insufficiency is lubricated in appearance in the compressor cylinder from the lubricant oil of certain compressor discharge, the excessive problem of lubricant oil appears again in other compressor simultaneously.Thereby cause that the bigger bearing of compressor of those lubricant oil vectors loses between lubricated, price fixing Moving plate the destroyed back of oil sealing compression chamber and can't form sealing and cause in the dish of whirlpool temperature sharply to rise and make remaining oil safe failures such as carbonization occur, and finally cause compressor damage.Usually for frequency-changeable compressor, this type of problem just seems especially outstanding because its oil drain quantity is big.
For the key of the problems referred to above, be to solve lubricant oil equilibrium that how to guarantee compressor chamber and don't the use that influences air conditioner.
Summary of the invention
All air conditioners of oil processing of realizing regularly described in the utility model, its purpose have been to address the above problem with deficiency designs the structural design that can regularly be lubricated oily equilibrium treatment.
All air conditioners of oil processing of realizing regularly described in the utility model, its outdoor unit includes a frequency-changeable compressor at least, and frequency-changeable compressor adopts parallel way to be connected with other compressors.According to the needs of indoor set ability to work, regulate the energy output of outdoor unit by frequency of regulating frequency-changeable compressor or the quantity of selecting invariable frequency compressor.
Have first scale and second scale in the low-pressure cavity of above-mentioned every compressor, wherein first scale is higher than second scale, and second scale is the minimum fuel height that keeps compressor to run well.When the lubricant oil pasta is lower than second scale in the compressor, will be because of lubricated insufficient fault and hidden danger that occurs damage compressor and unit parts, in case thereby any lubricant oil pasta in the multiple compressors be lower than second scale and just should enter immediately as the equal oil processing stage described in the utility model.So second scale promptly is the warning line that enters equal oil processing.
Corresponding to first scale of compressor inner chamber, every compressor is provided with an oil equalizing pipe, and oil equalizing pipe is provided with a solenoid valve simultaneously, and the oil equalizing pipe of all compressors is communicated with into a return passage capable of circulation.Before not carrying out the balanced lubrication oil processing, the solenoid valve on the oil equalizing pipe loop is closed condition.
One unidirectional stop valve all is set on the outlet pipe of every compressor.Then refrigeration agent that flows out from the outlet pipe of arbitrary compressor and lubricant oil can not reflux so far the compressor and other compressors.
One oil separator is set on the outlet pipe of outdoor unit.Can be in capillary tube be back to the muffler of compressor by the isolated lubricant oil of oil separator.
All air conditioners of oil processing of realizing regularly described in the utility model, its lubricant oil equalization process is such: when the lubricant oil pasta in a compressor is lower than second scale, at first in N hour, participate in the solenoid valve standard-sized sheet on the oil equalizing pipe of all compressors of air conditioner group running, first compressor full load operation M minute, remaining invariable frequency compressor shuts down, and frequency-changeable compressor turns round on the low frequency level.
At this moment, all compressor inner chambers lubricant oil of exceeding first scale enters in first compressor under action of pressure; Second compressor running then, the rest may be inferred, finishes the equal oil processing of all compressors.
Generally the oil drain quantity of frequency-changeable compressor is more, so be the running of frequency-changeable compressor high frequency at last, all the other invariable frequency compressors shut down, and the lubricant oil in the frequency-changeable compressor is compensated.
As mentioned above, after through the lubricant oil equilibrium treatment, all compressor inner chamber oil content all can not be lower than second scale.
Above-mentioned all air conditioners of oil processing of realizing regularly have the following advantages and beneficial effect:
1, according to the needs of ability to work, when realizing multiple compressors coupling in parallel, can guarantee that lubricant oil balancedly returns in the compressor cylinder, can be thereby improve bearing in the compression chamber, control temperature in the dish of whirlpool effectively by sufficient lubrication;
2, the structural design between compressor of outdoor unit is simple, can realize regularly all functions of oil processing, has higher controllability and real-time monitoring capacity.
Description of drawings
Fig. 1 is the schematic representation that compressor oil equalization pipe described in the utility model connects solenoid valve;
Fig. 2 is the oil-way system figure of compressor of outdoor unit group.
As Fig. 1-shown in Figure 2, all air conditioners of oil processing of realizing regularly described in the utility model, its outdoor unit includes compressor A, compressor B, compressor C, wherein has oil equalizing pipe 1, muffler 2, the one-way valve 4 that is provided with on the outlet pipe 3, oil separator 5, gas-liquid separator 6, capillary tube 7, four-way valve 8, solenoid valve 9.
Wherein, what the D among Fig. 1 indicated is that oil equalizing pipe 1 is communicated with other compressors, and the direction of arrow among Fig. 2 refers to the direction of flow of refrigerant.
Embodiment
Embodiment 1, in conjunction with Fig. 1 and Fig. 2, and all air conditioners of oil processing of realizing regularly described in the utility model, its outdoor unit includes frequency-changeable compressor A, invariable frequency compressor B and invariable frequency compressor C (this three compressor adopts parallel way to be connected), gas-liquid separator 6, capillary tube 7, four-way valve 8.
Every compressor all disposes oil equalizing pipe 1, muffler 2, outlet pipe 3.
Have first scale and second scale in the low-pressure cavity of every compressor, wherein first scale is higher than second scale, and second scale is the minimum fuel height that keeps compressor to run well.
Corresponding first scale, every compressor is provided with an oil equalizing pipe, and oil equalizing pipe is provided with a solenoid valve 9 simultaneously, and the oil equalizing pipe of all compressors is communicated with into a return passage capable of circulation.
Before not carrying out the balanced lubrication oil processing, promptly be that the solenoid valve 9 on all oil equalizing pipes is closed condition when the air conditioner of realizing regularly all oil processing described in the utility model normally moves.
One unidirectional stop valve 4 all is set on the outlet pipe 3 of every compressor.Then refrigeration agent that flows out from the outlet pipe 3 of arbitrary compressor and lubricant oil can not reflux so far the compressor; Simultaneously, can guarantee that also refrigeration agent and lubricant oil can not be back in other compressors when certain compressor starts operation.
One oil separator 5 is set on the outlet pipe 3 of outdoor unit.Can be back to the muffler 2 of compressor through capillary tube 7 by oil separator 6 isolated lubricant oil.
All air conditioners of oil processing of realizing regularly described in the utility model, after operation 12 hours, the interior cylinder lubricating oil pasta of compressor A and compressor B drops to below second scale, the cylinder lubricating oil pasta rises to more than first scale in the compressor C simultaneously, and then the air conditioner complete machine enters the equal oil processing stage.
The lubricant oil equalization process is such, at first participates in the solenoid valve standard-sized sheet on the three compressor oil equalizing pipes of air conditioner group running in 12 hours, compressor B full load operation 10 minutes, and compressor C shuts down, and compressor A turns round on the low frequency level.At this moment, what compressor C was interior exceeds the above lubricant oil of first scale under action of pressure, and the circulation loop that constitutes by oil equalizing pipe enters into compressor B.
Then, compressor A full load operation 10 minutes, compressor B shuts down.At this moment, still have in the compressor C to exceed the above lubricant oil of first scale, this part lubricant oil enters into compressor A by the circulation loop that oil equalizing pipe constitutes under action of pressure.
As mentioned above, air conditioner described in the utility model is after process lubricant oil equilibrium treatment, and the cylinder lubricating oil pasta all is not less than second scale in compressor A, compressor B and the compressor C.On this basis, the air conditioner unit can restart running.
Claims (4)
1, a kind of all air conditioners of oil processing of realizing regularly, have indoor set and outdoor unit, wherein outdoor unit includes a frequency-changeable compressor at least, multiple compressors adopts parallel way to connect, it is characterized in that: every compressor is provided with an oil equalizing pipe, oil equalizing pipe is provided with a solenoid valve, and the oil equalizing pipe of all compressors is communicated with into a return passage capable of circulation.
2, all air conditioners of oil processing of realizing regularly according to claim 1, it is characterized in that: in the low-pressure cavity of every compressor, have first scale corresponding with oil equalizing pipe, and corresponding to second scale that guarantees the minimum fuel height that compressor runs well, wherein first scale is higher than second scale.
3, all air conditioners of oil processing of realizing regularly according to claim 1 and 2 is characterized in that: a unidirectional stop valve all is set on the outlet pipe of every compressor.
4, all air conditioners of oil processing of realizing regularly according to claim 3 is characterized in that: an oil separator is set on the outlet pipe of outdoor unit, can connects the muffler of every compressor by the isolated lubricant oil of oil separator through capillary tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106977 CN2665406Y (en) | 2003-11-08 | 2003-11-08 | Air conditioner capable of realizing timing oil adjusting treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106977 CN2665406Y (en) | 2003-11-08 | 2003-11-08 | Air conditioner capable of realizing timing oil adjusting treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665406Y true CN2665406Y (en) | 2004-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320106977 Expired - Lifetime CN2665406Y (en) | 2003-11-08 | 2003-11-08 | Air conditioner capable of realizing timing oil adjusting treatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN2665406Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388278A (en) * | 2009-04-06 | 2012-03-21 | 开利公司 | Refrigerating circuit and method for controlling the oil distribution within the same |
| CN102865213A (en) * | 2011-07-08 | 2013-01-09 | 珠海格力电器股份有限公司 | Multiple compressor system and oil balancing method and device thereof |
| CN103673399A (en) * | 2012-09-14 | 2014-03-26 | 珠海格力电器股份有限公司 | Multi-module parallel-connection oil balancing system and control method |
| WO2014154046A1 (en) * | 2013-03-29 | 2014-10-02 | 艾默生环境优化技术(苏州)有限公司 | Compressor system and control method therefor |
-
2003
- 2003-11-08 CN CN 200320106977 patent/CN2665406Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388278A (en) * | 2009-04-06 | 2012-03-21 | 开利公司 | Refrigerating circuit and method for controlling the oil distribution within the same |
| CN102388278B (en) * | 2009-04-06 | 2014-11-19 | 开利公司 | Refrigerating circuit and method for controlling the oil distribution within the same |
| CN102865213A (en) * | 2011-07-08 | 2013-01-09 | 珠海格力电器股份有限公司 | Multiple compressor system and oil balancing method and device thereof |
| CN102865213B (en) * | 2011-07-08 | 2016-02-03 | 珠海格力电器股份有限公司 | Multi-compressor system and equal oily method and apparatus thereof |
| CN103673399A (en) * | 2012-09-14 | 2014-03-26 | 珠海格力电器股份有限公司 | Multi-module parallel-connection oil balancing system and control method |
| CN103673399B (en) * | 2012-09-14 | 2016-06-08 | 珠海格力电器股份有限公司 | Multiple module paralleling oil-balancing system and control method |
| WO2014154046A1 (en) * | 2013-03-29 | 2014-10-02 | 艾默生环境优化技术(苏州)有限公司 | Compressor system and control method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131108 Granted publication date: 20041222 |