CN109269017A - A kind of multi-connected machine single module system for not shutting down defrosting - Google Patents
A kind of multi-connected machine single module system for not shutting down defrosting Download PDFInfo
- Publication number
- CN109269017A CN109269017A CN201811016990.2A CN201811016990A CN109269017A CN 109269017 A CN109269017 A CN 109269017A CN 201811016990 A CN201811016990 A CN 201811016990A CN 109269017 A CN109269017 A CN 109269017A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- economizer
- pipeline
- outdoor unit
- valve
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to the multi-connected machine single module systems that one kind does not shut down defrosting, including the refrigerant circulation loop being made of compressor, oil eliminator, four-way valve, indoor set heat exchanger, outdoor unit heat exchanger and gas-liquid separator.An economizer is concatenated on pipeline between the indoor set heat exchanger and outdoor unit heat exchanger, and the second electric expansion valve is equipped between the economizer and the outdoor unit heat exchanger；It is connected between the economizer evaporation side input end and the primary outlet end of the economizer by pipeline, and is begun on the pipeline from economizer evaporation side outlet end, is sequentially connected in series the first electric expansion valve and third solenoid valve；Economizer evaporation side outlet end connects the input end of the gas-liquid separator.The present invention has rational design, and structure is simple, and manipulation is convenient, may be implemented to be not necessarily to switch four-way valve when defrosting operating, while making outdoor unit heat exchanger defrost, indoor set heat exchanger is still being heated, and improves the operational efficiency of system, improves the comfort level of user.
Description
Technical field
The present invention relates to a kind of air-conditioning systems, especially a kind of that the multi-joint of defrosting can be completed under not shutdown status
Machine system, specifically a kind of multi-connected machine single module system for not shutting down defrosting.
Background technique
When heating operation in winter, since outdoor environment temperature is low, outdoor unit heat exchanger (evaporator) surface is often
Lower than 0 DEG C hereinafter, so surface can gradually frosting, with the thickening of frosting, the heating capacity of unit can be gradually decreased, indoor
Leaving air temp is gradually lowered, at this time with regard to defrosting.
Currently, traditional air-conditioning is all using the reverse cycle defrosting of switching four-way reversing valve, i.e. Defrost operation is equivalent to system
Cold operation has the disadvantage in that
1) indoor unit carries out anti-cold wind processing at this time, stops heat supply, influences comfort.Indoor set heat exchanger is used as evaporator at this time
To indoor cold scattering, the temperature in room declines；
2) since reverse cycle defrosting is to realize that the high-low pressure of unit has the process of mutation, to system using the switching of four-way valve
Impact it is big, be easy to cause generator protection；The noise of four-way valve switched twice is big simultaneously, has to the reliability of four-way valve higher
Requirement.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide the multi-connected machine single module systems that one kind does not shut down defrosting
System may be implemented to be not necessarily to switch four-way valve when defrosting operating, and while so that outdoor unit heat exchanger is defrosted, indoor set heat exchanger is still
It is heating, is improving the operational efficiency of system, improving the comfort level of user.
The technical scheme is that
A kind of multi-connected machine single module system for not shutting down defrosting, including exchanged heat by compressor, oil eliminator, four-way valve, indoor unit
The refrigerant circulation loop that device, outdoor unit heat exchanger and gas-liquid separator are constituted.
An economizer, the economizer and institute are concatenated on pipeline between the indoor set heat exchanger and outdoor unit heat exchanger
It states and is equipped with the second electric expansion valve between outdoor unit heat exchanger；The primary outlet end of the economizer evaporation side input end and the economizer
Between be connected by pipeline, and on the pipeline from economizer evaporation side outlet end begin, it is swollen to be sequentially connected in series the first electronics
Swollen valve and third solenoid valve；Economizer evaporation side outlet end connects the input end of the gas-liquid separator；
It is connected between the outlet end of the oil eliminator and the arrival end of the outdoor unit heat exchanger by pipeline, and in the pipeline
It is equipped with the first solenoid valve；Pipeline between the end S and the gas-liquid separator of the four-way valve is equipped with second solenoid valve；
It further include bypass pipe, one end is connected on the pipeline between the end the four-way valve S and the second solenoid valve, the other end
It is connected on the pipeline between the third solenoid valve and first electric expansion valve.
Further, the indoor set heat exchanger is multiple, and in being connected in parallel, the outlet end of each indoor set heat exchanger is divided
It She You not a third electric expansion valve.
Beneficial effects of the present invention:
The present invention has rational design, and structure is simple, and manipulation is convenient, may be implemented to be not necessarily to switch four-way valve when defrosting operating, makes outdoor
While machine heat exchanger defrosts, indoor set heat exchanger is still being heated, and improves the operational efficiency of system, improves relaxing for user
Appropriateness.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention.
Wherein: 1- compressor；2- oil eliminator；3- four-way valve；The first solenoid valve of 4-；5- outdoor unit heat exchanger；In the room 6-
Machine heat exchanger；7- third electric expansion valve；The second electric expansion valve of 8-；9- economizer；10- third solenoid valve；11- bypass pipe；
12- second solenoid valve；The first electric expansion valve of 13-；14- gas-liquid separator.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1.
A kind of multi-connected machine single module system for not shutting down defrosting, including by compressor 1, oil eliminator 2, four-way valve 3, interior
The refrigerant circulation loop that machine heat exchanger 5, outdoor unit heat exchanger 5 and gas-liquid separator 14 are constituted.
An economizer 9 is concatenated on pipeline between the indoor set heat exchanger 6 and outdoor unit heat exchanger 5, the economizer 9
The second electric expansion valve 8 is equipped between the outdoor unit heat exchanger 5；The 9 evaporation side input end of economizer and the economizer 9
Primary outlet is connected between end by pipeline, and is begun on the pipeline from the 9 evaporation side outlet end of economizer, is sequentially connected in series
First electric expansion valve and third solenoid valve；The 9 evaporation side outlet end of economizer connects the import of the gas-liquid separator 14
End.
It is connected between the outlet end of the oil eliminator 2 and the arrival end of the outdoor unit heat exchanger 5 by pipeline, and
The pipeline is equipped with the first solenoid valve 4；Pipeline between the end S and the gas-liquid separator 14 of the four-way valve 3 is equipped with the
Two solenoid valves 12.
The invention also includes bypass pipe 11, one end be connected to the four-way valve 3 the end S and the second solenoid valve 12 it
Between pipeline on, the other end is connected on the pipeline between the third solenoid valve 10 and first electric expansion valve 13.
The indoor set heat exchanger 6 be it is multiple, in being connected in parallel, the outlet end of each indoor set heat exchanger 6 is respectively equipped with
One third electric expansion valve 7.
When heating operation, the first solenoid valve, third solenoid valve and the first electric expansion valve are closed, second solenoid valve and second
Electric expansion valve is heated to open.At this point, refrigerant passes sequentially through compressor, oil eliminator, four-way valve, indoor set heat exchanger,
Three electric expansion valves, economizer, the second electric expansion valve, outdoor unit heat exchanger, gas-liquid separator eventually pass back to compressor completion
Circulation.
When Defrost operation, the first solenoid valve, third solenoid valve and the first electric expansion valve are opened, second solenoid valve and second
Electric expansion valve is closed.At this point, being divided into two-way after refrigerant is by compressor and oil eliminator and being flowed.Wherein it is all the way
Pass sequentially through four-way valve, indoor set heat exchanger, electronic expansion valve of indoor unit, economizer, third solenoid valve, bypass pipe, the second electricity
Magnet valve and gas-liquid separator, return to compressor.Another way is to pass sequentially through the first solenoid valve, outdoor unit heat exchanger, four-way valve, the
Two solenoid valves and gas-liquid separator, return to compressor.To make outdoor unit heat exchanger and indoor set heat exchanger while as condensation
Device carries out heat release, not only outdoor unit is made to be defrosted, moreover, indoor set heat exchanger is also made to continue to heat, improves and is
The operational efficiency of system improves the comfort level of user.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (2)
1. one kind does not shut down the multi-connected machine single module system of defrosting, including is changed by compressor, oil eliminator, four-way valve, indoor unit
The refrigerant circulation loop that hot device, outdoor unit heat exchanger and gas-liquid separator are constituted, it is characterized in that:
An economizer, the economizer and the room are concatenated on pipeline between the indoor set heat exchanger and outdoor unit heat exchanger
The second electric expansion valve is equipped between outer machine heat exchanger；Between the economizer evaporation side input end and the primary outlet end of the economizer
It is connected by pipeline, and is begun on the pipeline from economizer evaporation side outlet end, is sequentially connected in series the first electric expansion valve
With third solenoid valve；Economizer evaporation side outlet end connects the input end of the gas-liquid separator；
It is connected between the outlet end of the oil eliminator and the arrival end of the outdoor unit heat exchanger by pipeline, and in the pipeline
It is equipped with the first solenoid valve；Pipeline between the end S and the gas-liquid separator of the four-way valve is equipped with second solenoid valve；
It further include bypass pipe, one end is connected on the pipeline between the end the four-way valve S and the second solenoid valve, the other end
It is connected on the pipeline between the third solenoid valve and first electric expansion valve.
2. the multi-connected machine single module system according to claim 1 for not shutting down defrosting, it is characterized in that the indoor unit exchanges heat
Device be it is multiple, in being connected in parallel, the outlet end of each indoor set heat exchanger is respectively equipped with a third electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811016990.2A CN109269017A (en) | 2018-09-03 | 2018-09-03 | A kind of multi-connected machine single module system for not shutting down defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811016990.2A CN109269017A (en) | 2018-09-03 | 2018-09-03 | A kind of multi-connected machine single module system for not shutting down defrosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109269017A true CN109269017A (en) | 2019-01-25 |
Family
ID=65187685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811016990.2A Pending CN109269017A (en) | 2018-09-03 | 2018-09-03 | A kind of multi-connected machine single module system for not shutting down defrosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109269017A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974255A (en) * | 2019-04-03 | 2019-07-05 | 南京福加自动化科技有限公司 | A kind of low-temperature air conditioner control system and control method |
| CN110595094A (en) * | 2019-09-30 | 2019-12-20 | 海信（广东）空调有限公司 | Air conditioning system |
| WO2021169542A1 (en) * | 2019-10-23 | 2021-09-02 | 珠海格力电器股份有限公司 | Air conditioning system capable of performing continuous heating |
| CN113513825A (en) * | 2021-07-14 | 2021-10-19 | 南京天加环境科技有限公司 | Refrigeration system for optimizing defrosting process and control method thereof |
| CN114353172A (en) * | 2022-01-20 | 2022-04-15 | Tcl空调器(中山)有限公司 | Multi-split air conditioner, control method and storage medium |
| CN114484744A (en) * | 2022-02-18 | 2022-05-13 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting method and multi-connected air conditioning system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060096308A1 (en) * | 2004-11-09 | 2006-05-11 | Manole Dan M | Vapor compression system with defrost system |
| CN202902507U (en) * | 2012-07-09 | 2013-04-24 | 青岛海尔空调电子有限公司 | Heat pump air conditioner defrosting system |
| CN203231419U (en) * | 2013-04-07 | 2013-10-09 | 广东美的制冷设备有限公司 | Air conditioner |
| CN103363707A (en) * | 2012-04-09 | 2013-10-23 | 珠海格力电器股份有限公司 | Heat pump type air conditioner |
| CN205482280U (en) * | 2016-03-31 | 2016-08-17 | 郑州欧纳尔冷暖科技有限公司 | Tertiary hot recovery type heat pump drying unit |
| EP3073211A1 (en) * | 2015-03-25 | 2016-09-28 | Toshiba Carrier Corporation | Refrigeration cycle equipment |
| CN107178924A (en) * | 2017-05-23 | 2017-09-19 | 华中科技大学 | A kind of accumulation of heat is not shut down except defrosting system and air-conditioning |
| JP2017172920A (en) * | 2016-03-25 | 2017-09-28 | 株式会社富士通ゼネラル | Air conditioner |
| CN107975990A (en) * | 2017-10-27 | 2018-05-01 | 浙江国祥股份有限公司 | A kind of multi-line system and defrosting control method for not shutting down rotation defrosting |
| CN108332285A (en) * | 2017-12-29 | 2018-07-27 | 青岛海尔空调器有限总公司 | Air-conditioner system |
-
2018
- 2018-09-03 CN CN201811016990.2A patent/CN109269017A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060096308A1 (en) * | 2004-11-09 | 2006-05-11 | Manole Dan M | Vapor compression system with defrost system |
| CN103363707A (en) * | 2012-04-09 | 2013-10-23 | 珠海格力电器股份有限公司 | Heat pump type air conditioner |
| CN202902507U (en) * | 2012-07-09 | 2013-04-24 | 青岛海尔空调电子有限公司 | Heat pump air conditioner defrosting system |
| CN203231419U (en) * | 2013-04-07 | 2013-10-09 | 广东美的制冷设备有限公司 | Air conditioner |
| EP3073211A1 (en) * | 2015-03-25 | 2016-09-28 | Toshiba Carrier Corporation | Refrigeration cycle equipment |
| JP2017172920A (en) * | 2016-03-25 | 2017-09-28 | 株式会社富士通ゼネラル | Air conditioner |
| CN205482280U (en) * | 2016-03-31 | 2016-08-17 | 郑州欧纳尔冷暖科技有限公司 | Tertiary hot recovery type heat pump drying unit |
| CN107178924A (en) * | 2017-05-23 | 2017-09-19 | 华中科技大学 | A kind of accumulation of heat is not shut down except defrosting system and air-conditioning |
| CN107975990A (en) * | 2017-10-27 | 2018-05-01 | 浙江国祥股份有限公司 | A kind of multi-line system and defrosting control method for not shutting down rotation defrosting |
| CN108332285A (en) * | 2017-12-29 | 2018-07-27 | 青岛海尔空调器有限总公司 | Air-conditioner system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974255A (en) * | 2019-04-03 | 2019-07-05 | 南京福加自动化科技有限公司 | A kind of low-temperature air conditioner control system and control method |
| CN110595094A (en) * | 2019-09-30 | 2019-12-20 | 海信（广东）空调有限公司 | Air conditioning system |
| CN110595094B (en) * | 2019-09-30 | 2021-08-24 | 海信（广东）空调有限公司 | Air conditioning system |
| WO2021169542A1 (en) * | 2019-10-23 | 2021-09-02 | 珠海格力电器股份有限公司 | Air conditioning system capable of performing continuous heating |
| CN113513825A (en) * | 2021-07-14 | 2021-10-19 | 南京天加环境科技有限公司 | Refrigeration system for optimizing defrosting process and control method thereof |
| CN113513825B (en) * | 2021-07-14 | 2023-02-28 | 南京天加环境科技有限公司 | Refrigeration system for optimizing defrosting process and control method thereof |
| CN114353172A (en) * | 2022-01-20 | 2022-04-15 | Tcl空调器(中山)有限公司 | Multi-split air conditioner, control method and storage medium |
| CN114484744A (en) * | 2022-02-18 | 2022-05-13 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting method and multi-connected air conditioning system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |