CN201944952U - Air conditioner with subcooler - Google Patents
Air conditioner with subcooler Download PDFInfo
- Publication number
- CN201944952U CN201944952U CN2010206313435U CN201020631343U CN201944952U CN 201944952 U CN201944952 U CN 201944952U CN 2010206313435 U CN2010206313435 U CN 2010206313435U CN 201020631343 U CN201020631343 U CN 201020631343U CN 201944952 U CN201944952 U CN 201944952U
- Authority
- CN
- China
- Prior art keywords
- expansion valve
- outlet
- supercooling apparatus
- heat exchanger
- inner coil
- 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 description 30
- 238000004378 air conditioning Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 2
- 239000004411 aluminium Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 8
- 239000003507 refrigerant Substances 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Images
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 an air conditioner with a subcooler, comprising an indoor machine and an outdoor machine, wherein the indoor machine and the outdoor machine are connected by a pipeline; in the indoor machine, the front end of an expansion valve is provided with a subcooler which comprises an overcooling heat exchanger and an electronic expansion valve; the outer pipe shell of the overcooling heat exchanger is connected to the connecting pipe of the outdoor machine; an inlet of an inner coil is connected to the outlet of the electronic expansion valve, and the outlet of the inner coil is converged with the outlet of an evaporator; the inlet of the electronic expansion valve is connected to the connecting pipeline of the outdoor machine. In the utility model, the air cooling type machine room air conditioner with a liquid storage at the outdoor machine side can ensure the reliable running of a compressor under the application environment with long piping and negative drop.
Description
Technical field
The utility model relates to refrigerated air-conditioning system, relates in particular to a kind of air-conditioning with supercooling apparatus.
Background technology
The Wind-cooling type air conditioner in machine room has accounted for most ratios in air conditioner in machine room, in cold operation, usually increase reservoir in the outside, this class reservoir is mainly used in two kinds of application: (1) provides the cold-starting function, be used normal the startup and operation of compression function when being implemented in outdoor environment temperature and being low to moderate-30 ℃ with the refrigeration devices such as head pressure valve of regulating condensing pressure; (2) use in the energy-saving pump circulation, be used to store cold-producing medium, and provide certain static pressure pressure head, occur cavitation when preventing pump operation to refrigerated medium pump.Though reservoir can provide above function,, make the cold-producing medium of condensator outlet not have degree of supercooling owing to increased reservoir in the condenser back.Certain degree of supercooling can improve the refrigerating capacity of unit, and prior certain degree of supercooling is that expansion valve is normal, the prerequisite of steady operation.When the connecting line of air conditioner in machine room indoor and outdoor machine is grown (being called for short long pipe arrangement) or off-premises station and is installed in the application of position below the indoor set (being called for short negative drop), because the static pressure pressure loss that resistance loss of pipeline that long pipe arrangement brings or negative drop bring, therefore refrigerant liquid must have certain degree of supercooling before the expansion valve, just can avoid because the cold-producing medium shwoot that brings of the pressure loss, thereby guarantee normal, the stable work of expansion valve.
The existing scheme that degree of supercooling is provided, normally increase a sub-cooling coil in the inlet side of condenser, refrigerant liquid after coming out from reservoir inserts sub-cooling coil earlier, the air intake of condenser is earlier through sub-cooling coil, refrigerant liquid in the sub-cooling coil is cooled off, and the refrigerant liquid that comes out from sub-cooling coil has just had certain degree of supercooling like this.Yet there is certain deficiency in existing degree of supercooling scheme:
1. structure more complicated, volume is bigger, normally installs at engineering site, and engineering strength is bigger;
2. increase the windage of condenser, can reduce the air quantity and the exchange capability of heat of condenser to a certain extent, and increased the operate power of condenser fan;
3. owing to be the way of the increase degree of supercooling that provides of the front end at tube connector, in long pipe arrangement or negative drop length variations, just may and not match in the solution of front end.
Summary of the invention
The purpose of this utility model is to solve above-mentioned problems of the prior art, proposes a kind of air-conditioning with supercooling apparatus.
The air-conditioning of the band supercooling apparatus that the utility model proposes comprises: indoor set and off-premises station, connect by pipeline between indoor set and the off-premises station, in the described indoor set, the front end of expansion valve is provided with a supercooling apparatus, described supercooling apparatus comprises that one crosses a cold heat exchanger and an electric expansion valve, the described outer pipe shell of crossing cold heat exchanger links to each other with the tube connector of off-premises station, the inner coil pipe inlet links to each other with the outlet of electric expansion valve, outlet converges with the outlet of evaporimeter, and the inlet of described electric expansion valve is connected with the connecting pipe of off-premises station.
The described outlet of crossing the cold heat exchanger inner coil pipe is provided with temperature sensor and the pressure sensor that control signal is provided to electric expansion valve.
In an embodiment of the present utility model, to cross cold heat exchanger and form by bigger copper pipe or steel pipe an outer pipe shell of making and a less inner coil pipe of diameter that overlaps inside of diameter, inner coil pipe adopts high copper pipe or the aluminum pipe of the coefficient of heat transfer.
Compared with prior art, the utility model provides the air-conditioning of band supercooling apparatus to provide certain degree of supercooling to the refrigerant liquid before the expansion valve, guarantees the work that expansion valve can be normal, stable; For the long pipe arrangement of the air conditioner in machine room that has reservoir at off-premises station or the application of negative drop provide a kind of good solution; Supercooling apparatus is installed in the indoor set, compact conformation, assembling in factory, test and delivery; Supercooling apparatus is installed in the indoor set, and long pipe arrangement or the application of negative drop that adapts to different length seemed more flexible.
Description of drawings
Below, contrast accompanying drawing and preferred embodiment are elaborated to the utility model, wherein:
Fig. 1 is the structural representation of the utility model one embodiment.
The specific embodiment
As shown in Figure 1, the Wind-cooling type air conditioner in machine room of the band supercooling apparatus that the utility model proposes comprises: indoor set A and off-premises station B two parts connect by tube connector between indoor set and the off-premises station.Indoor set comprises parts such as compressor 1, evaporimeter 9, expansion valve 8, and off-premises station comprises parts such as condenser 2, reservoir 3.For need being low to moderate the air conditioner in machine room that outdoor environment temperature below-30 ℃ also needs the air conditioner in machine room of refrigerating operaton or adopts energy-saving pump circulation, when the engineering of running into long pipe arrangement or low head is used, in order to ensure normal, the stable work of expansion valve energy, need to guarantee that expansion valve inlet cold-producing medium have certain degree of supercooling.The utility model has partly increased a supercooling apparatus at indoor set.This supercooling apparatus comprised cold heat exchanger 5, electric expansion valve 4, temperature sensor 6 and pressure sensor 7.Cross cold heat exchanger 5 and be made up of bigger copper pipe or steel pipe an outer pipe shell of making and a less inner coil pipe of diameter that overlaps inside of diameter, inner coil pipe adopts high copper pipe or the aluminum pipe of the coefficient of heat transfer.
The normal temperature that comes out from condenser 2, the refrigerant liquid major part of high pressure flowed into the outer pipe shell of cold heat exchanger, the fraction refrigerant liquid is then introduced the electric expansion valve throttling, the two phase flow that becomes low temperature, low pressure entered in the inner coil pipe of cold heat exchanger and evaporated, refrigerant liquid to outer pipe shell cools off, increase its degree of supercooling, the refrigerant gas that certain degree of superheat is arranged that comes out from inner coil pipe, converge with the refrigerant gas of evaporator outlet, sucked the back compression by compressor, begin a new kind of refrigeration cycle.Be furnished with temperature sensor 6 and pressure sensor 7 that control signal is provided to electric expansion valve on the outlet of inner coil pipe, the flow-control of guaranteeing electric expansion valve is in normal range (NR), make the refrigerant gas that comes out from inner coil pipe have certain degree of superheat, to avoid back liquid to compressor.
In the application of air conditioner in machine room off-premises station band reservoir, negative drop is general to be required not above 5m, the tube connector of indoor and outdoor machine does not generally surpass 30m, adopt supercooling apparatus of the present utility model, reduce the measure of tube connector refrigerant pressure drop again in conjunction with other, when negative drop reaches 15m, when long pipe arrangement reaches 60m, the operation that unit also can be normal, stable.
Claims (4)
1. air-conditioning with supercooling apparatus, comprise indoor set and off-premises station, connect by pipeline between indoor set and the off-premises station, it is characterized in that: in indoor set, the front end of expansion valve is provided with a supercooling apparatus, described supercooling apparatus comprises that one crosses a cold heat exchanger and an electric expansion valve, the described outer pipe shell of crossing cold heat exchanger links to each other with the tube connector of off-premises station, the inner coil pipe inlet links to each other with the outlet of electric expansion valve, outlet converges with the outlet of evaporimeter, and the inlet of described electric expansion valve is connected with the connecting pipe of off-premises station.
2. the air-conditioning of band supercooling apparatus according to claim 1 is characterized in that: the described outlet of crossing the cold heat exchanger inner coil pipe is provided with temperature sensor and the pressure sensor that control signal is provided to electric expansion valve.
3. the air-conditioning of band supercooling apparatus according to claim 1 is characterized in that: described outer pipe shell adopts copper pipe or tube material.
4. the air-conditioning of band supercooling apparatus according to claim 1 is characterized in that: described inner coil pipe adopts high copper pipe or the aluminium tube material of the coefficient of heat transfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206313435U CN201944952U (en) | 2010-11-30 | 2010-11-30 | Air conditioner with subcooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206313435U CN201944952U (en) | 2010-11-30 | 2010-11-30 | Air conditioner with subcooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944952U true CN201944952U (en) | 2011-08-24 |
Family
ID=44472293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206313435U Expired - Lifetime CN201944952U (en) | 2010-11-30 | 2010-11-30 | Air conditioner with subcooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944952U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964342A (en) * | 2015-06-02 | 2015-10-07 | 深圳市艾特网能有限公司 | High-minus-fall air conditioner |
| US10119738B2 (en) | 2014-09-26 | 2018-11-06 | Waterfurnace International Inc. | Air conditioning system with vapor injection compressor |
| CN110595116A (en) * | 2019-09-24 | 2019-12-20 | 青岛澳柯玛超低温冷冻设备有限公司 | Single-machine secondary throttling regenerative refrigeration cycle system |
| CN111765517A (en) * | 2020-06-06 | 2020-10-13 | 苏州浪潮智能科技有限公司 | Low-temperature starting air conditioning system |
| US10866002B2 (en) | 2016-11-09 | 2020-12-15 | Climate Master, Inc. | Hybrid heat pump with improved dehumidification |
| US10871314B2 (en) | 2016-07-08 | 2020-12-22 | Climate Master, Inc. | Heat pump and water heater |
| US10935260B2 (en) | 2017-12-12 | 2021-03-02 | Climate Master, Inc. | Heat pump with dehumidification |
| WO2021042437A1 (en) * | 2019-09-04 | 2021-03-11 | 广东美的制冷设备有限公司 | Air-conditioning system and control method therefor |
| US11506430B2 (en) | 2019-07-15 | 2022-11-22 | Climate Master, Inc. | Air conditioning system with capacity control and controlled hot water generation |
| US11592215B2 (en) | 2018-08-29 | 2023-02-28 | Waterfurnace International, Inc. | Integrated demand water heating using a capacity modulated heat pump with desuperheater |
-
2010
- 2010-11-30 CN CN2010206313435U patent/CN201944952U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10119738B2 (en) | 2014-09-26 | 2018-11-06 | Waterfurnace International Inc. | Air conditioning system with vapor injection compressor |
| US11927377B2 (en) | 2014-09-26 | 2024-03-12 | Waterfurnace International, Inc. | Air conditioning system with vapor injection compressor |
| US10753661B2 (en) | 2014-09-26 | 2020-08-25 | Waterfurnace International, Inc. | Air conditioning system with vapor injection compressor |
| US11480372B2 (en) | 2014-09-26 | 2022-10-25 | Waterfurnace International Inc. | Air conditioning system with vapor injection compressor |
| CN104964342A (en) * | 2015-06-02 | 2015-10-07 | 深圳市艾特网能有限公司 | High-minus-fall air conditioner |
| WO2016192538A1 (en) * | 2015-06-02 | 2016-12-08 | 深圳市艾特网能有限公司 | High negative head air conditioner |
| US11448430B2 (en) | 2016-07-08 | 2022-09-20 | Climate Master, Inc. | Heat pump and water heater |
| US10871314B2 (en) | 2016-07-08 | 2020-12-22 | Climate Master, Inc. | Heat pump and water heater |
| US11435095B2 (en) | 2016-11-09 | 2022-09-06 | Climate Master, Inc. | Hybrid heat pump with improved dehumidification |
| US10866002B2 (en) | 2016-11-09 | 2020-12-15 | Climate Master, Inc. | Hybrid heat pump with improved dehumidification |
| US10935260B2 (en) | 2017-12-12 | 2021-03-02 | Climate Master, Inc. | Heat pump with dehumidification |
| US11592215B2 (en) | 2018-08-29 | 2023-02-28 | Waterfurnace International, Inc. | Integrated demand water heating using a capacity modulated heat pump with desuperheater |
| US11953239B2 (en) | 2018-08-29 | 2024-04-09 | Waterfurnace International, Inc. | Integrated demand water heating using a capacity modulated heat pump with desuperheater |
| US11506430B2 (en) | 2019-07-15 | 2022-11-22 | Climate Master, Inc. | Air conditioning system with capacity control and controlled hot water generation |
| WO2021042437A1 (en) * | 2019-09-04 | 2021-03-11 | 广东美的制冷设备有限公司 | Air-conditioning system and control method therefor |
| CN110595116A (en) * | 2019-09-24 | 2019-12-20 | 青岛澳柯玛超低温冷冻设备有限公司 | Single-machine secondary throttling regenerative refrigeration cycle system |
| CN111765517B (en) * | 2020-06-06 | 2021-10-22 | 苏州浪潮智能科技有限公司 | Low-temperature starting air conditioning system |
| CN111765517A (en) * | 2020-06-06 | 2020-10-13 | 苏州浪潮智能科技有限公司 | Low-temperature starting air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong city of Shenzhen province Baoan District Guanlan Street Dabu Lane Community Meiguan Road East Hongxin Industrial Park No. 9 building 1-3 floor Patentee after: Shenzhen Envicool Technology Co., Ltd. Address before: Baoan District Shenzhen City, Guangdong province 518000 Guanlan street view of the city community view road to science and Technology Park gold ring on the third floor of B Patentee before: Shenzhen Envicool Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |