CN111637653B - Method for remotely providing cooling to a condenser in a compressor refrigeration system - Google Patents
Method for remotely providing cooling to a condenser in a compressor refrigeration system Download PDFInfo
- Publication number
- CN111637653B CN111637653B CN202010304749.0A CN202010304749A CN111637653B CN 111637653 B CN111637653 B CN 111637653B CN 202010304749 A CN202010304749 A CN 202010304749A CN 111637653 B CN111637653 B CN 111637653B
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- China
- Prior art keywords
- compressor
- condenser
- indoor unit
- refrigeration system
- outdoor unit
- 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 - Fee Related
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 title claims abstract description 12
- 230000005484 gravity Effects 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004891 communication Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention relates to a method for remotely providing cooling for a condenser in a compressor refrigeration system, comprising: providing an indoor unit, wherein a compressor, an evaporator and a condenser in a compressor refrigeration system are all arranged in the indoor unit, the indoor unit also comprises a heat exchanger, and the condenser of the compressor refrigeration system is one part of the heat exchanger; providing an outdoor unit as a heat radiating end, wherein the installation position of the outdoor unit is higher than that of the indoor unit; and communicating the indoor unit with the outdoor unit through a system pipeline, wherein the other part of the heat exchanger and the outdoor unit form a separated gravity heat pipe heat exchange system. The invention obviously improves the energy efficiency ratio of the compressor, improves the oil return of a compressor system, improves the stability of the operation of the compressor and prolongs the service life of the compressor; the whole refrigerating system is more energy-saving.
Description
Technical Field
The present invention relates to a method for providing cooling to a condenser in a compressor refrigeration system, and more particularly, to a method for remotely providing cooling to a condenser in a compressor refrigeration system using a split gravity assisted heat pipe technique.
Background
In a compressor refrigeration system, once the compressor is configured, the energy efficiency ratio of the compressor is primarily dependent on the difference between the discharge pressure and the suction pressure. When the suction pressure of the compressor is fixed, the higher the discharge pressure is, the lower the energy efficiency ratio of the compressor is; conversely, the lower the discharge pressure, the higher the energy efficiency ratio of the compressor.
The discharge pressure of the compressor is mainly related to the condensing pressure and the pipeline resistance, and the condensing pressure depends on the capacity of the condenser and the condition of a cold source; the resistance of the pipeline mainly depends on the length, the diameter, the radius of the elbow, the number of the elbow and the like of the pipeline. The longer the system pipeline is, the larger the resistance is, the higher the exhaust pressure of the compressor is caused, and the energy efficiency ratio of the compressor is reduced. The pipeline resistance has no benefit on the refrigerating capacity and the energy efficiency ratio of the system, so the method should be used for reducing the pipeline resistance as much as possible and improving the energy efficiency ratio of the compressor.
The method is limited by factors such as the requirement of compressor oil return on the flow rate of the refrigerant and installation conditions, and is difficult to achieve the purposes of reducing the resistance of the pipeline, further reducing the exhaust pressure of the compressor and improving the energy efficiency ratio by measures such as increasing the pipe diameter of the pipeline, reducing the length of the pipeline, reducing the number of elbows of the pipeline and the like. In fact, the phenomenon that the energy efficiency ratio of the compressor in the refrigeration system is seriously influenced due to the pipeline resistance exists in a large range for a long time.
Aiming at the technical problems that the oil return of a compressor system is influenced by too long pipeline of a traditional compressor refrigeration system and the energy efficiency ratio is low, a new method is needed to solve.
Disclosure of Invention
The present invention is a method for remotely providing cooling to a condenser in a compressor refrigeration system. The method adopts a separated gravity assisted heat pipe technology, and effectively solves the technical problems that the energy efficiency ratio of the compressor is reduced due to too long pipeline and the oil return of the system is influenced in the traditional compressor refrigeration system.
To achieve the above objects, the method of the present invention for remotely providing cooling to a condenser in a compressor refrigeration system comprises: providing an indoor unit, wherein a compressor, an evaporator and a condenser in a compressor refrigeration system are all arranged in the indoor unit, the indoor unit also comprises a heat exchanger, and the condenser of the compressor refrigeration system is one part of the heat exchanger; providing an outdoor unit as a heat radiating end, wherein the installation position of the outdoor unit is higher than that of the indoor unit; and the indoor unit and the outdoor unit are in fluid communication through a system pipeline, and the other part of the heat exchanger and the outdoor unit form a separated gravity heat pipe heat exchange system.
The outdoor unit may include an air-cooled condenser, a water-cooled condenser, an evaporative-cooled condenser, and the like.
The indoor unit may further include a compressor refrigeration system throttling device, system piping, and piping fittings.
The method may further comprise providing a control unit to automatically control the operation of the entire system.
In a specific implementation, a refrigerant flow adjusting device is arranged in the outdoor unit system pipeline.
And a refrigerant flow regulating device can be arranged in the system pipeline of the indoor unit.
Specifically, a refrigerant flow rate adjusting device is arranged in a system pipeline of the indoor unit between a liquid refrigerant outlet of the outdoor unit and a liquid refrigerant inlet of the heat exchanger.
The beneficial technical effects of the invention comprise:
(1) the indoor units and outdoor units may be arranged over long distances, which may be in excess of 200 meters in construction, or even longer.
(2) The indoor unit and the outdoor unit adopt a separated gravity heat pipe technology to realize heat exchange, and the energy consumption is zero.
(3) The compressor refrigeration system has short pipeline and small pipeline resistance, and the energy efficiency ratio of the compressor is obviously improved.
(4) The compressor refrigeration system has short pipeline, improves the oil return of the compressor system, leads the compressor system to work more stably and reliably, and prolongs the service life of the compressor.
(5) The overall energy efficiency ratio of the system is improved.
Drawings
Fig. 1 is a schematic diagram of a method of remotely providing cooling to a condenser in a compressor refrigeration system in accordance with the present invention.
Detailed Description
The invention is further described below with reference to fig. 1. It should be understood that the embodiments of the present invention described in the drawings are illustrative of the invention and are not to be construed as limiting the invention. The scope of the invention is defined by the appended claims.
It should be noted that for convenience of description, the terms "upper", "lower", "left", "right" and other directional terms may be used for convenience of description only to describe the relative orientation of the components of the present invention, and should not be construed as limiting the present invention in any way.
Referring to fig. 1, a schematic diagram of a method of remotely providing cooling to a condenser in a compressor refrigeration system according to the present invention is shown. The method includes providing an indoor unit 20, an outdoor unit 10, and a control unit (not shown), the indoor unit 20 being in fluid communication with the outdoor unit 10 via a refrigerant line 30.
The indoor unit 20 further includes a heat exchanger 206, a compressor 205, an indoor fan 204, a compressor refrigeration system throttling device 203, an evaporator 202, and a refrigerant flow rate adjusting device 201. A refrigerant inlet 2601 at the upper right side of the heat exchanger 206 is in fluid communication with an exhaust port of the compressor 205, and a liquid refrigerant outlet 2602 at the lower right side is in fluid communication with an inlet port of the compressor refrigeration system throttling device 203; the gaseous refrigerant outlet 2603 at the upper left side of the heat exchanger is in fluid communication with a gaseous refrigerant inlet (not shown) of the condenser 102 in the outdoor unit 10, and the liquid refrigerant inlet 2064 at the lower left side of the heat exchanger is in fluid communication with a liquid refrigerant outlet (not shown) of the outdoor condenser 102. The outdoor unit 10 further includes an outdoor fan 101 therein. A refrigerant flow rate adjusting device 201 is further provided in a pipe between the liquid refrigerant inlet 2064 and the liquid refrigerant outlet of the exterior condenser 102.
The condenser of the compressor refrigeration system is on the right side of the heat exchanger 206, and the evaporator of the separated gravity assisted heat pipe is on the left side; the operation principle of the compressor refrigeration system is clear to those skilled in the art and will not be described in detail. When the system is in operation, the refrigerant on the left side of the heat exchanger 206 absorbs the heat on the right side and evaporates into a gaseous refrigerant, the gaseous refrigerant rises to the outdoor unit 10 through the gaseous refrigerant outlet 2603 on the upper left side and condenses, and the condensed liquid refrigerant flows into the liquid refrigerant inlet 2064 on the left side from the outdoor unit 10 through the refrigerant flow regulating device 201 through the pipeline 30 under the action of gravity and then enters the left side to continue to absorb heat and evaporate, thereby completing a thermodynamic cycle.
The control unit automatically controls the effective operation of the whole refrigeration system according to the set logic, which is easy to be realized by those skilled in the art and will not be described herein.
The refrigerant flow rate adjusting device 201 in this embodiment may be an electronic expansion valve, but is not limited thereto.
Based upon the foregoing description of the embodiments of the invention, it should be apparent that the invention defined by the appended claims is not limited solely to the specific details set forth in the foregoing description, as many apparent variations thereof are possible without departing from the spirit or scope thereof.
Claims (6)
1. A method of remotely providing cooling to a condenser in a compressor refrigeration system, the method comprising: providing an indoor unit, wherein a compressor, an evaporator and a condenser in a compressor refrigeration system are all arranged in the indoor unit, the indoor unit also comprises a heat exchanger, and the condenser of the compressor refrigeration system is one part of the heat exchanger; providing an outdoor unit as a heat radiating end, wherein the installation position of the outdoor unit is higher than that of the indoor unit; and communicating the indoor unit with the outdoor unit through a system pipeline, wherein the other part of the heat exchanger and the outdoor unit form a separated gravity heat pipe heat exchange system, and the other part of the heat exchanger is an evaporator of the separated gravity heat pipe heat exchange system.
2. The method of remotely providing cooling to a condenser in a compressor refrigeration system as set forth in claim 1 wherein said outdoor unit comprises an air cooled condenser, a water cooled condenser or an evaporative cooled condenser.
3. The method for remotely providing cooling to a condenser in a compressor refrigeration system of claim 1 wherein said indoor unit further comprises a compressor refrigeration system throttling device, system piping and piping fittings.
4. A method as claimed in claim 1 wherein a refrigerant flow control device is provided in the system line of the outdoor unit.
5. A method as claimed in claim 1 wherein a refrigerant flow control device is provided in the system line of the indoor unit.
6. A method as claimed in claim 5, wherein a refrigerant flow control device is provided in the system line of the indoor unit between the liquid refrigerant outlet of the outdoor unit and the liquid refrigerant inlet of the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010304749.0A CN111637653B (en) | 2020-04-17 | 2020-04-17 | Method for remotely providing cooling to a condenser in a compressor refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010304749.0A CN111637653B (en) | 2020-04-17 | 2020-04-17 | Method for remotely providing cooling to a condenser in a compressor refrigeration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111637653A CN111637653A (en) | 2020-09-08 |
| CN111637653B true CN111637653B (en) | 2022-05-03 |
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|---|---|---|---|
| CN202010304749.0A Expired - Fee Related CN111637653B (en) | 2020-04-17 | 2020-04-17 | Method for remotely providing cooling to a condenser in a compressor refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111637653B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000320913A (en) * | 1999-05-07 | 2000-11-24 | Hitachi Air Conditioning System Co Ltd | Refrigerant natural circulation jointly used air conditioner and its operation control method |
| CN105829810A (en) * | 2013-10-17 | 2016-08-03 | 开利公司 | Operation of a cascade air conditioning system with two-phase loop |
| CN106322814A (en) * | 2016-11-22 | 2017-01-11 | 广东美的暖通设备有限公司 | Air conditioning system and air conditioner |
| CN110319721A (en) * | 2019-07-12 | 2019-10-11 | 南京春荣节能科技有限公司 | A kind of computer room heat pipe air conditioner system |
-
2020
- 2020-04-17 CN CN202010304749.0A patent/CN111637653B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000320913A (en) * | 1999-05-07 | 2000-11-24 | Hitachi Air Conditioning System Co Ltd | Refrigerant natural circulation jointly used air conditioner and its operation control method |
| CN105829810A (en) * | 2013-10-17 | 2016-08-03 | 开利公司 | Operation of a cascade air conditioning system with two-phase loop |
| CN106322814A (en) * | 2016-11-22 | 2017-01-11 | 广东美的暖通设备有限公司 | Air conditioning system and air conditioner |
| CN110319721A (en) * | 2019-07-12 | 2019-10-11 | 南京春荣节能科技有限公司 | A kind of computer room heat pipe air conditioner system |
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| CN111637653A (en) | 2020-09-08 |
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Granted publication date: 20220503 |