CN203550068U - Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine - Google Patents
Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine Download PDFInfo
- Publication number
- CN203550068U CN203550068U CN201320614577.2U CN201320614577U CN203550068U CN 203550068 U CN203550068 U CN 203550068U CN 201320614577 U CN201320614577 U CN 201320614577U CN 203550068 U CN203550068 U CN 203550068U
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- China
- Prior art keywords
- outdoor unit
- split system
- condenser
- outdoor machine
- heat exchanger
- 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.)
- Expired - Lifetime
Links
- 238000004781 supercooling Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 abstract description 16
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000004378 air conditioning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a multi-split system, a multi-split system outdoor machine and an outdoor machine unit of the multi-split system outdoor machine. The outdoor machine unit is used in the multi-split system outdoor machine and comprises a condenser (8), a compressor and a plate heat exchanger (12), wherein an output end of the condenser (8) is provided with a super-cooling degree regulating pipeline which is communicated with a first heat exchange pipeline of the plate heat exchanger (12), and a main pipeline which is communicated with a second heat exchange pipeline of the plate heat exchanger (12), the super-cooling degree regulating pipeline is connected with an electronic expansion valve (11), and an output end of the first heat exchange pipeline is communicated with the compressor. According to the outdoor machine unit disclosed by the utility model, the super-cooling degree of a refrigerant is increased, and the refrigerating capacity and the energy efficiency of the multi-split system are increased.
Description
Technical Field
The utility model relates to a refrigeration plant technical field, in particular to many online systems, many online system off-premises station and off-premises station unit thereof.
Background
The multi-split air conditioner is commonly called as "one-to-many", and means that one outdoor unit is connected with a plurality of indoor units through pipes. The multi-split system has the advantages of energy conservation, comfort, stable operation and the like, and each room can be independently adjusted, so that the requirements of different air conditioner loads in different rooms can be met. The building block is increasingly widely applied to small and medium-sized buildings and part of public buildings.
At present, in the multi-split system in the market, the multi-split system can be applied to occasions with longer piping and higher drop height, and the performance requirement of the multi-split system is improved along with the multi-split system. In the long piping and high fall, the pressure drop is overcome in the system, so that most of the supercooling degree of the refrigerant is lost, the supercooling degree in the system is smaller, and the system capacity and the system energy efficiency are lower.
Therefore, how to improve the supercooling degree of the refrigerant and improve the refrigeration capacity and energy efficiency of the system is a problem to be solved urgently by the people in the technical field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an outdoor unit to improve refrigerant super-cooling degree, improve system's refrigerating capacity and efficiency. The utility model also provides a many online systems and many online system off-premises stations.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an outdoor unit for among many online system off-premises stations, including condenser and compressor, still include plate heat exchanger, the output of condenser have with the super-cooled rate control circuit of plate heat exchanger's first heat transfer pipeline intercommunication and with the main line of plate heat exchanger's second heat transfer pipeline intercommunication, be connected with electronic expansion valve on the super-cooled rate control circuit, first heat transfer pipeline's output with the compressor intercommunication.
Preferably, the outdoor unit further includes a throttle assembly disposed at an output end of the condenser.
Preferably, in the outdoor unit, the throttle unit is disposed between the condenser and the plate heat exchanger.
Preferably, in the outdoor unit, the throttling assembly includes an electromagnetic valve and two electronic throttling expansion valves, which are connected in parallel to an output end of the condenser.
Preferably, the outdoor unit further includes a check valve connected in series to the electromagnetic valve.
Preferably, the outdoor unit further includes a controller for controlling an opening degree of the electronic expansion valve, a temperature sensor for detecting a system temperature, and a pressure sensor for detecting a system pressure; the temperature sensor and the pressure sensor are in communication connection with the controller.
Preferably, in the outdoor unit, an output end of the first heat exchange pipeline is communicated with a gas-liquid separator of the outdoor unit.
Preferably, the outdoor unit further includes a high-pressure accumulator tank communicated with an output end of the second heat exchange pipeline.
The utility model also provides a many online system off-premises stations, including a plurality of off-premises station units, the off-premises station unit is as above-mentioned arbitrary outdoor unit.
The utility model also provides a many online systems, including many online systems off-premises station, many online systems off-premises station be as above many online systems off-premises station.
According to the above technical scheme, the utility model provides an outdoor unit, the main line that the super-cooling degree adjusting line and supply the cooling medium to flow is divided by the output of condenser, cool medium in to super-cooling degree adjusting line carries out the step-down cooling through electronic expansion valve, flow into plate heat exchanger's first heat transfer pipeline, carry out the heat transfer with the refrigerant in the second heat transfer pipeline in the plate heat exchanger, the refrigerant temperature in the main line has been reduced, and then the super-cooling degree of refrigerant in the main line has been improved, the refrigerating capacity and the efficiency of multi-split air-conditioning system have been improved.
The utility model also provides a many online system off-premises stations of having above-mentioned off-premises station unit and many online systems. Since the outdoor unit has the technical effects, the outdoor unit of the multi-split system and the multi-split system having the outdoor unit also have the same technical effects, and a description thereof is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an outdoor unit according to an embodiment of the present invention.
Wherein,
the system comprises a first compressor-1, a one-way valve-2, a high-pressure switch-3, a high-pressure sensor-4, an oil separator-5, a second compressor-6, a four-way valve-7, a condenser-8, a solenoid valve-9, a throttling electronic expansion valve-10, an electronic expansion valve-11, a plate heat exchanger-12, a high-pressure accumulator tank-13, a low-pressure switch-14, a high-pressure valve-15, a low-pressure valve-16, an oil balance valve-17, a gas-liquid separator-18 and a low-pressure sensor-19.
Detailed Description
The utility model discloses an outdoor unit to improve refrigerant super-cooled rate, improve system's refrigerating capacity and efficiency. The utility model also provides a many online systems and many online system off-premises stations.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an outdoor unit according to an embodiment of the present invention.
The embodiment of the utility model provides an outdoor unit for among many online system off-premises station, including condenser 8 and compressor, still include plate heat exchanger 12, condenser 8's output have with plate heat exchanger 12's the degree of supercooling regulating pipe way of first heat transfer pipeline intercommunication and with the main line of plate heat exchanger 12's second heat transfer pipeline intercommunication, be connected with electronic expansion valve 11 on the degree of supercooling regulating pipe way, first heat transfer pipeline's output and compressor intercommunication.
It should be noted that the plate heat exchanger 12 has two heat exchange pipes, which are a first heat exchange pipe and a second heat exchange pipe, and the heat exchange operation between fluids in the first heat exchange pipe and the second heat exchange pipe is completed through heat conduction between the two heat exchange pipes.
The embodiment of the utility model provides an outdoor unit, the main line that the super-cooling degree adjusting line and cooling medium flow is divided by condenser 8's output, cool medium in adjusting the line to the super-cooling degree through electronic expansion valve 11 reduces the pressure and cools down, and flow into plate heat exchanger 12's first heat transfer pipeline, and the refrigerant in the second heat transfer pipeline in plate heat exchanger 12 carries out the heat transfer, has reduced the refrigerant temperature in the main line, and then has improved the super-cooling degree of refrigerant in the main line, the refrigeration ability and the efficiency of multi-split air-conditioning system have been improved.
Furthermore, the system also comprises a throttling component arranged at the output end of the condenser 8, so that the supercooling degree of the refrigerant in the system can be further adjusted, and the superheat degree can be conveniently adjusted.
In the present embodiment, the throttling assembly is preferably arranged between the condenser 8 and the plate heat exchanger 12. Or may be arranged on a main line connected to the output end of the second heat exchange conduit of the plate heat exchanger 12.
In the present embodiment, the throttling assembly includes a solenoid valve 9 and two electronic throttle expansion valves 10 connected in parallel to the output end of the condenser 8. The quantity of the refrigerant flowing through the two throttling electronic expansion valves 10 is adjusted by controlling the opening degree of the electromagnetic valve 9. Other numbers of the throttle electronic expansion valves 10, such as 1 or 3, can also be provided, which are not described one by one and are all within the protection scope.
In order to improve the operation stability of the system, the system further comprises a check valve 2 connected in series with the solenoid valve 9 to prevent the refrigerant flowing through the solenoid valve 9 from flowing back.
Furthermore, in order to facilitate control, the outdoor unit provided by the embodiment of the present invention further includes a controller for controlling the opening degree of the electronic expansion valve 11, a temperature sensor for detecting the temperature of the system, and a pressure sensor for detecting the pressure of the system; the temperature sensor and the pressure sensor are in communication connection with the controller. The pressure sensor comprises a high-pressure sensor 4 and a low-pressure sensor 19, a pipeline where the high-pressure sensor 4 is located is connected with the high-pressure switch 3 in series, and a pipeline where the low-pressure sensor 19 is located is connected with the low-pressure switch 14 in series.
The output end of the first heat exchange pipeline is communicated with a gas-liquid separator 18 of the outdoor unit. Namely, the refrigerant in the first heat exchange pipeline flows into the gas-liquid separator 18 after heat exchange, and then flows into the air inlet of the compressor. The compressor in the outdoor unit according to the present embodiment includes the first compressor 1 and the second compressor 6, and the refrigerant flowing out of the gas-liquid separator 18 is divided into the first compressor 1 and the second compressor 6. One of the first compressor 1 and the second compressor 6 is a direct-current variable-frequency compressor, and the other is a constant-speed compressor; or can be both direct current variable frequency compressors. The output end of the first heat exchange pipeline can also be directly communicated with the compressor, which is not described in detail herein and is within the protection scope.
Preferably, a high-pressure accumulator tank 13 is also included, communicating with the output of the second heat exchange circuit. The output end of the high-pressure accumulator tank 13 is communicated with a high-pressure valve 15 of the multi-split outdoor unit, which is connected with a plurality of outdoor unit units. By adding the high pressure accumulator tank 13, the control effect is improved.
As shown in fig. 1, the outdoor unit includes a compressor, an oil separator 5, a gas-liquid separator 18, a four-way valve 7, and a condenser 8, wherein a high pressure sensor 4 is provided on a connection pipe between the compressor and the oil separator 5, and a low pressure sensor 19 is provided on a connection pipe between the gas-liquid separator 18 and the compressor. The outdoor units are connected by an oil balance valve 17, a high pressure valve 15 and a low pressure valve 16 to form the outdoor unit of the multi-split air conditioning system.
The embodiment of the utility model provides a many online system off-premises station, including a plurality of off-premises station units, the off-premises station unit is as above-mentioned any kind of off-premises station unit. Since the outdoor unit has the above-mentioned effects, the outdoor unit of the multi-split air conditioning system having the outdoor unit also has the same technical effects, and therefore, the outdoor unit is not described one by one and is within the protection scope.
The utility model also provides a many online systems, including many online system off-premises stations, many online system off-premises stations are connected with a plurality of indoor sets, have formed many online systems. The multi-online system outdoor unit is the multi-online system outdoor unit in the above embodiment.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an outdoor unit, is arranged in many on line system off-premises station, includes condenser (8) and compressor, its characterized in that still includes plate heat exchanger (12), the output of condenser (8) have with the super-cooling degree of plate heat exchanger (12) first heat transfer pipeline intercommunication adjust the pipeline and with the main line of plate heat exchanger (12) second heat transfer pipeline intercommunication, be connected with electronic expansion valve (11) on the super-cooling degree adjusts the pipeline, first heat transfer pipeline's output with the compressor intercommunication.
2. An outdoor unit according to claim 1, further comprising a throttling assembly provided at an output of the condenser (8).
3. An outdoor unit according to claim 2, characterized in that the throttling assembly is arranged between the condenser (8) and the plate heat exchanger (12).
4. Outdoor unit according to claim 2 or 3, characterized in that the throttling assembly comprises a solenoid valve (9) and two electronic expansion valves (10) connected in parallel to the output of the condenser (8).
5. An outdoor unit as claimed in claim 4, further comprising a check valve (2) connected in series with the solenoid valve (9).
6. The outdoor unit of claim 1, further comprising a controller for controlling the opening degree of the electronic expansion valve (11), a temperature sensor for detecting a system temperature, and a pressure sensor for detecting a system pressure; the temperature sensor and the pressure sensor are in communication connection with the controller.
7. The outdoor unit of claim 1, wherein the output end of the first heat exchange line is communicated with a gas-liquid separator (18) of the outdoor unit.
8. The outdoor unit of claim 1, further comprising a high pressure accumulator tank (13) communicated with an output end of the second heat exchange pipe.
9. An outdoor unit of a multi-split system comprising a plurality of outdoor unit units, wherein the outdoor unit is the outdoor unit according to any one of claims 1 to 8.
10. A multi-split system comprising outdoor units of the multi-split system, wherein the outdoor units of the multi-split system are the outdoor units of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614577.2U CN203550068U (en) | 2013-09-30 | 2013-09-30 | Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614577.2U CN203550068U (en) | 2013-09-30 | 2013-09-30 | Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550068U true CN203550068U (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320614577.2U Expired - Lifetime CN203550068U (en) | 2013-09-30 | 2013-09-30 | Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550068U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197582A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system |
| CN104214985A (en) * | 2014-09-01 | 2014-12-17 | 广东志高暖通设备股份有限公司 | Multi-split air conditioning system and low-temperature refrigeration method |
| CN104236170A (en) * | 2014-09-30 | 2014-12-24 | 广东志高暖通设备股份有限公司 | VRF air conditioning system, oil balancing device of VRF air conditioning system and control method of VRF air conditioning system |
| CN104236169A (en) * | 2014-09-30 | 2014-12-24 | 宁波奥克斯电气有限公司 | Oil return control method for fully constant frequency multi-connected air conditioning unit |
| CN104266416A (en) * | 2014-09-29 | 2015-01-07 | 特灵空调系统(中国)有限公司 | Multi-split air conditioner throttling and super-cooling control mechanism |
| CN105987535A (en) * | 2015-02-03 | 2016-10-05 | 宁波奈兰环境系统有限公司 | High-capacity multi-split air-condition heat pump unit for ultra-long-distance conveying of refrigerant |
| 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 |
-
2013
- 2013-09-30 CN CN201320614577.2U patent/CN203550068U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197582A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system |
| CN104214985A (en) * | 2014-09-01 | 2014-12-17 | 广东志高暖通设备股份有限公司 | Multi-split air conditioning system and low-temperature refrigeration method |
| CN104197582B (en) * | 2014-09-01 | 2017-04-19 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system |
| CN104266416A (en) * | 2014-09-29 | 2015-01-07 | 特灵空调系统(中国)有限公司 | Multi-split air conditioner throttling and super-cooling control mechanism |
| CN104236170A (en) * | 2014-09-30 | 2014-12-24 | 广东志高暖通设备股份有限公司 | VRF air conditioning system, oil balancing device of VRF air conditioning system and control method of VRF air conditioning system |
| CN104236169A (en) * | 2014-09-30 | 2014-12-24 | 宁波奥克斯电气有限公司 | Oil return control method for fully constant frequency multi-connected air conditioning unit |
| CN105987535A (en) * | 2015-02-03 | 2016-10-05 | 宁波奈兰环境系统有限公司 | High-capacity multi-split air-condition heat pump unit for ultra-long-distance conveying of refrigerant |
| 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 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |