CN202902548U - Air conditioner system small load control structure - Google Patents
Air conditioner system small load control structure Download PDFInfo
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- CN202902548U CN202902548U CN 201220609606 CN201220609606U CN202902548U CN 202902548 U CN202902548 U CN 202902548U CN 201220609606 CN201220609606 CN 201220609606 CN 201220609606 U CN201220609606 U CN 201220609606U CN 202902548 U CN202902548 U CN 202902548U
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Abstract
The utility model discloses an air conditioner system small load control structure which comprises a compressor and an oil-gas separator. A pressure sensor is arranged on an exhausting pipeline between the compressor and the oil-gas separator. An electronic expansion valve is connected with a flow adjusting valve in parallel. The pressure sensor is connected with a control system of an air conditioner. The control system controls the flow adjusting valve. Compared with the prior art, the air conditioner system small load control structure can effectively control cooling agent circulation quantity of a united machine system under small load working conditions, guarantee service life of the compressor well, lower failure rates of a united machine, and prolong service life of the compressor.
Description
Technical field
The utility model relates to the air-conditioning system field, exactly refers to the little load control structure of a kind of air-conditioning system.
Background technology
At present, connected machine system is when light running, because the internal circulating load of system refrigerant is little, and the motor of frequency-changeable compressor is larger in the multi-connected machine system, and the motor feels hot, and amount is also large, causes the temperature of motor very high, easily burns out compressor.Common technology is by electronic expansion valve regulation enlargement discharge, but the adjustable range of electronic expansion can obviously diminish in little load, can not effectively reduce the temperature of compressor electric motor.
The utility model content
For defects, the technical problem that the utility model solves is to provide a kind of air-conditioning system little load control structure, under small load condition, can effectively control the circulating mass of refrigerant of multi-connected machine system, thereby can guarantee well the service life of compressor, can reduce the fault rate of multi-connected machine, improve the service life of compressor.
In order to solve above technical problem, the little load control structure of the air-conditioning system that the utility model provides, comprise compressor, gs-oil separator, be provided with pressure sensor on the gas exhaust piping between described compressor and the described gs-oil separator, described electric expansion valve is parallel with a flow control valve, described pressure sensor is connected with the control system of air-conditioning, described control system control flow control valve.
Preferably, be provided with temperature sensor on the gas exhaust piping between described compressor and the described gs-oil separator, described temperature sensor is connected with the control system of air-conditioning, the motor of described control system control off-premises station blower fan.
Preferably, described flow control valve is magnetic valve.
Preferably, described compressor comprises frequency-changeable compressor and/or invariable frequency compressor.
The little load control structure of the air-conditioning system that the utility model provides, comprise compressor, gs-oil separator, be provided with pressure sensor on the gas exhaust piping between described compressor and the described gs-oil separator, described electric expansion valve is parallel with a flow control valve, described pressure sensor is connected with the control system of air-conditioning, described control system control flow control valve.Compared with prior art, the little load control structure of the air-conditioning system that the utility model provides, under small load condition, can effectively control the circulating mass of refrigerant of multi-connected machine system, thereby can guarantee well the service life of compressor, can reduce the fault rate of multi-connected machine, improve the service life of compressor.
Description of drawings
Fig. 1 is the schematic diagram of the little load control structure of air-conditioning system in the utility model.
The specific embodiment
For those skilled in the art can understand technical scheme provided by the utility model better, set forth below in conjunction with specific embodiment.
See also Fig. 1, this figure is the schematic diagram of the little load control structure of air-conditioning system in the utility model.
Air-conditioning system comprises compressor 3, gs-oil separator 4, cross valve 5, outdoor fan 6, electric expansion valve 7, high pressure fluid reservoir 8, low-pressure liquid storing tank 10, high-pressure stop valve 9 and low-pressure shutoff valve 11 etc.Compressor 3 comprises frequency-changeable compressor 1 and invariable frequency compressor 2.
The little load control structure of the air-conditioning system that the utility model embodiment provides, be provided with pressure sensor 12 on the gas exhaust piping between compressor 3 and the gs-oil separator 4, electric expansion valve 7 is parallel with a flow control valve 14, flow control valve 14 is magnetic valve, pressure sensor 12 is connected with the control system of air-conditioning, control system control flow control valve 14.
Be provided with temperature sensor 13 on the gas exhaust piping between compressor 3 and the gs-oil separator 4, temperature sensor 13 is connected with the control system of air-conditioning, the motor of control system control off-premises station blower fan 6.
When temperature sensor 13 during more than or equal to 100 ℃, open flow control valve 14, so can promptly delivery temperature be reduced.When delivery temperature is closed flow control valve 14 during less than or equal to 90 ℃.Simultaneously because opening of flow control valve 14 causes system high pressure pressure further to reduce.If there is not corresponding counter-measure, the amplitude that flow increases can be very limited.And in the technical program when pressure sensor 12 detects high-pressure less than 2.3Mpa, the motor of outdoor fan 6 reduced by 100 rev/mins in per 10 seconds, until high-pressure is greater than 2.3Mpa, when high-pressure during more than or equal to 2.8Mpa, the motor of outdoor fan 6 reduced by 100 rev/mins in per 10 seconds.By cooperatively interacting that the motor speed of flow control valve 14 and outdoor fan 6 is regulated; even guaranteed that connected machine system is under the state of little load; can guarantee that also system high pressure pressure is between 2.3-2.8Mpa; delivery temperature is being moved below 100 ℃, thereby can effectively protect the safety of compressor.
Compared with prior art, the little load control structure of the air-conditioning system that the utility model provides, under small load condition, can effectively control the circulating mass of refrigerant of multi-connected machine system, thereby can guarantee well the service life of compressor, can reduce the fault rate of multi-connected machine, improve the service life of compressor.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, in other embodiments realization.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. little load control structure of air-conditioning system, it is characterized in that, comprise compressor, gs-oil separator, be provided with pressure sensor on the gas exhaust piping between described compressor and the described gs-oil separator, described electric expansion valve is parallel with a flow control valve, described pressure sensor is connected with the control system of air-conditioning, described control system control flow control valve.
2. the little load control structure of air-conditioning system according to claim 1, it is characterized in that, be provided with temperature sensor on the gas exhaust piping between described compressor and the described gs-oil separator, described temperature sensor is connected with the control system of air-conditioning, the motor of described control system control off-premises station blower fan.
3. the little load control structure of air-conditioning system according to claim 1 is characterized in that, described flow control valve is magnetic valve.
4. the little load control structure of air-conditioning system according to claim 1 is characterized in that, described compressor comprises frequency-changeable compressor and/or invariable frequency compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220609606 CN202902548U (en) | 2012-11-16 | 2012-11-16 | Air conditioner system small load control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220609606 CN202902548U (en) | 2012-11-16 | 2012-11-16 | Air conditioner system small load control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902548U true CN202902548U (en) | 2013-04-24 |
Family
ID=48123208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220609606 Expired - Fee Related CN202902548U (en) | 2012-11-16 | 2012-11-16 | Air conditioner system small load control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202902548U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776191A (en) * | 2014-02-21 | 2014-05-07 | 广东志高暖通设备股份有限公司 | Multi-split air conditioner and heat pump system thereof |
| CN105841546A (en) * | 2016-05-25 | 2016-08-10 | 厦门润晶光电集团有限公司 | Double-circulation two-section type high-precision ice water temperature control system |
| CN106403337A (en) * | 2016-09-27 | 2017-02-15 | 广东志高暖通设备股份有限公司 | Multi-split system |
| CN106949581A (en) * | 2017-02-28 | 2017-07-14 | 深圳市艾特网能技术有限公司 | Frequency-conversion air-conditioning system and its control method |
-
2012
- 2012-11-16 CN CN 201220609606 patent/CN202902548U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776191A (en) * | 2014-02-21 | 2014-05-07 | 广东志高暖通设备股份有限公司 | Multi-split air conditioner and heat pump system thereof |
| CN105841546A (en) * | 2016-05-25 | 2016-08-10 | 厦门润晶光电集团有限公司 | Double-circulation two-section type high-precision ice water temperature control system |
| CN106403337A (en) * | 2016-09-27 | 2017-02-15 | 广东志高暖通设备股份有限公司 | Multi-split system |
| CN106949581A (en) * | 2017-02-28 | 2017-07-14 | 深圳市艾特网能技术有限公司 | Frequency-conversion air-conditioning system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20201116 |