CN110631296A - Control device for refrigerant flow of heat pipe system - Google Patents
Control device for refrigerant flow of heat pipe system Download PDFInfo
- Publication number
- CN110631296A CN110631296A CN201810643711.9A CN201810643711A CN110631296A CN 110631296 A CN110631296 A CN 110631296A CN 201810643711 A CN201810643711 A CN 201810643711A CN 110631296 A CN110631296 A CN 110631296A
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- CN
- China
- Prior art keywords
- refrigerant
- heat pipe
- pipe system
- indoor evaporator
- heat
- 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.)
- Pending
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- 230000008020 evaporation Effects 0.000 claims abstract description 8
- 230000005494 condensation Effects 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013021 overheating Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- 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
Abstract
The invention relates to the technical field of heat pipe heat exchange, in particular to a control device for the flow of a refrigerant of a heat pipe system, which comprises an outdoor condenser, a liquid storage device, an electronic expansion valve, an indoor evaporator, a flow controller and a signal collector, wherein the refrigerant in the heat pipe system is subjected to heat exchange with outdoor low-temperature air through the outdoor condenser and condensed into supercooled refrigerant liquid which enters the liquid storage device, the supercooled refrigerant liquid in the liquid storage device enters the indoor evaporator through the electronic expansion valve, the supercooled refrigerant liquid absorbs heat in the indoor evaporator and then is evaporated into superheated gas, and the heat in the room is transferred to the outdoor condenser. The invention can solve the liquid level fluctuation of the refrigerant in the evaporator of the heat pipe system by steplessly adjusting the flow of the refrigerant in the heat pipe system, improves the operating efficiency of the heat pipe system, realizes the accurate control of the temperature of the machine room, adjusts and controls the proper evaporation temperature through the electronic expansion valve, and avoids the condensation on the surface of the indoor evaporator.
Description
Technical Field
The invention relates to the technical field of heat pipe heat exchange, in particular to a control device for the flow of a refrigerant of a heat pipe system.
Background
The heat pipe is a heat transfer part with high heat conductivity, transfers heat through evaporation and condensation of a refrigeration working medium in the totally-enclosed vacuum heat exchanger, and has a series of advantages of extremely high heat transfer performance, good isothermal performance, extremely low failure rate, capability of randomly changing heat transfer areas of indoor and outdoor cold and hot sides to adapt to different loads, capability of transferring heat remotely, capability of controlling temperature and the like. However, the heat pipe heat exchange system in the prior art is not provided with a refrigerant flow control device, and under the working condition that the temperature difference of the cold end and the hot end of the heat pipe system is large in change, the liquid level of the refrigerant in the evaporator of the heat pipe system fluctuates, so that the heat exchange efficiency of the heat pipe system is influenced; the existing data machine room is usually designed by adopting a high-density machine cabinet, the heat productivity is large, the cooling capacity of a heat pipe system is configured according to the design load of the machine room when the machine room is built, in the actual operation engineering, the load of the machine room at the initial stage is small, and under the condition of large indoor and outdoor temperature difference, the local supercooling of the machine room can be caused, even condensed water can be generated on the surface of a heat pipe evaporator, and the accurate control on the temperature of the machine room cannot be realized.
Disclosure of Invention
The invention provides a control device for the flow of a refrigerant of a heat pipe system, which can solve the problem of liquid level fluctuation of the refrigerant in an evaporator of the heat pipe system, improve the operating efficiency of the heat pipe system, realize accurate control of the temperature of a machine room and avoid condensation on the surface of an indoor evaporator.
In order to realize the purpose of the invention, the adopted technical scheme is as follows: a control device for the flow rate of refrigerant in heat pipe system is composed of outdoor condenser, liquid accumulator, electronic expansion valve, the heat pipe system comprises an indoor evaporator, a flow controller and a signal collector, wherein a refrigerant in the heat pipe system exchanges heat with outdoor low-temperature air through an outdoor condenser, the refrigerant is condensed into supercooled refrigerant liquid and enters a liquid storage device, the supercooled refrigerant liquid in the liquid storage device enters the indoor evaporator through an electronic expansion valve, the supercooled refrigerant liquid absorbs heat in the indoor evaporator and is evaporated into superheated gas, the heat in the room is conveyed to the outdoor condenser, the electronic expansion valve is installed at an inlet of the indoor evaporator, the flow controller collects data information of the indoor evaporator through the signal collector, and the flow controller adjusts the opening degree of the electronic expansion valve according to the data information of the indoor evaporator, so that the flow of the refrigerant in the heat pipe system and the evaporation temperature of the indoor evaporator.
As an optimized scheme of the invention, one or more indoor evaporators are provided, and an electronic expansion valve is arranged at an inlet of each indoor evaporator.
As an optimized scheme of the invention, the control device for the refrigerant flow of the heat pipe system further comprises a refrigerant liquid pipe, and the supercooled refrigerant liquid enters the accumulator through the refrigerant liquid pipe.
As an optimized scheme of the invention, the control device for the refrigerant flow of the heat pipe system further comprises a refrigerant gas pipe, and superheated gas is conveyed to the outdoor condenser through the refrigerant gas pipe.
The invention has the positive effects that: the invention can be applied to the construction or energy-saving reconstruction of communication machine rooms, computer machine rooms, laboratories, special factory buildings and other environments, has no outdoor air entering, does not need to filter the outdoor air, and has small maintenance amount. During operation, no water enters the machine room, and the safety of the machine room is guaranteed. The indoor unit has the advantages of ceiling type, cabinet type upper air supply, cabinet type under-floor air supply and the like, and can solve the problems of local overheating, small holes on the wall body and the like;
2) the invention can solve the liquid level fluctuation of the refrigerant in the evaporator of the heat pipe system by steplessly adjusting the flow of the refrigerant in the heat pipe system, improves the operating efficiency of the heat pipe system, realizes the accurate control of the temperature of the machine room, adjusts and controls the proper evaporation temperature through the electronic expansion valve, and avoids the condensation on the surface of the indoor evaporator.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is an overall structural view of the present invention.
Wherein: 1. the system comprises an outdoor condenser, 2, a liquid storage device, 3, an electronic expansion valve, 4, an indoor evaporator, 5, a flow controller, 6, a signal collector, 7, a refrigerant liquid pipe, 8, a refrigerant gas pipe, 9, indoor and 10 and outdoor.
Detailed Description
As shown in fig. 1, the present invention discloses a control device for refrigerant flow of a heat pipe system, comprising an outdoor condenser 1, a liquid reservoir 2, an electronic expansion valve 3, an indoor evaporator 4, a flow controller 5 and a signal collector 6, wherein the refrigerant in the heat pipe system is condensed into a supercooled refrigerant liquid by heat exchange between the outdoor condenser 1 and low-temperature air of an outdoor 10, the supercooled refrigerant liquid enters the liquid reservoir 2, the supercooled refrigerant liquid in the liquid reservoir 2 enters the indoor evaporator 4 through the electronic expansion valve 3, the supercooled refrigerant liquid is evaporated into a superheated gas after absorbing heat in the indoor evaporator 4, and the heat in an indoor 9 is transferred to the outdoor condenser 1, the electronic expansion valve 3 is installed at an inlet of the indoor evaporator 4, the flow controller 5 collects data information of the indoor evaporator 4 through the signal collector 6, the flow controller 5 adjusts the opening degree of the electronic expansion valve 3 according to the data information of, thereby adjusting the flow rate of the refrigerant in the heat pipe system and the evaporation temperature of the indoor evaporator 4. The outdoor condenser 1, the liquid storage device 2, the electronic expansion valve 3 and the indoor evaporator 4 form a loop heat pipe heat exchange system. The signal collector 6 collects data information of the indoor evaporator 4, the flow controller 5 collects the data information of the indoor evaporator 4 through the signal collector 6, and the flow controller 5 sends an adjusting instruction to the electronic expansion valve 3 according to preset logic. Wherein, the data information of the indoor evaporator 4 collected by the signal collector 6 comprises the data information of the evaporation temperature, the humidity and the steam volume.
One or more indoor evaporators 4 are provided, and an electronic expansion valve 3 is arranged at an inlet of each indoor evaporator 4. The flow of the heat pipe system refrigerant is steplessly adjusted by controlling (opening or closing) through the electronic expansion valve 3, the liquid level of the refrigerant in the indoor evaporator 4 is controlled, the temperature of the machine room is accurately controlled, and the problem of local overheating or supercooling is solved. The proper evaporation temperature is adjusted and controlled by the electronic expansion valve 3, and condensation and water on the surface of the indoor evaporator 4 are prevented.
The control device for the refrigerant flow of the heat pipe system further comprises a refrigerant liquid pipe 7, and the supercooled refrigerant liquid enters the accumulator 2 through the refrigerant liquid pipe 7.
The control device for the refrigerant flow of the heat pipe system also comprises a refrigerant gas pipe 8, and superheated gas is conveyed to the outdoor condenser 1 through the refrigerant gas pipe 8.
When the running condition of the heat pipe system is met, the refrigerant in the heat pipe system exchanges heat with outdoor low-temperature air through the outdoor condenser 1 and is condensed into supercooled refrigerant liquid; returns to the liquid accumulator 2 through the refrigerant liquid pipe 7 by gravity; the supercooled refrigerant liquid in the liquid storage device 2 enters the indoor evaporator 4 through the electronic expansion valve 3 through the liquid pipe, exchanges heat with indoor high-temperature air, evaporates into superheated gas after absorbing heat, takes away indoor heat, and is conveyed to the outdoor condenser 1 through the refrigerant air pipe 8, so that the whole heat pipe refrigeration cycle is completed. In the operation process, the flow controller 5 collects the parameter information of the indoor evaporator 4 through the signal collector 6, and according to the set logic relationship, the opening degree of the electronic expansion valve 3 is subjected to stepless regulation, the flow of the refrigerant is controlled, and the accurate control of the temperature of the machine room is realized.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A control device for refrigerant flow of a heat pipe system, characterized in that: the heat pipe system comprises an outdoor condenser (1), a liquid storage device (2), an electronic expansion valve (3), an indoor evaporator (4), a flow controller (5) and a signal collector (6), wherein refrigerant in the heat pipe system is subjected to heat exchange with low-temperature air of the outdoor condenser (1) and an outdoor part (10) to be condensed into supercooled refrigerant liquid to enter the liquid storage device (2), the supercooled refrigerant liquid in the liquid storage device (2) enters the indoor evaporator (4) through the electronic expansion valve (3), the supercooled refrigerant liquid is evaporated into superheated gas after absorbing heat in the indoor evaporator (4), heat in a room (9) is conveyed to the outdoor condenser (1), the electronic expansion valve (3) is installed at an inlet of the indoor evaporator (4), and the flow controller (5) collects data information of the indoor evaporator (4) through the signal collector (6), the flow controller (5) adjusts the opening degree of the electronic expansion valve (3) according to the data information of the indoor evaporator (4), thereby adjusting the flow of the refrigerant in the heat pipe system and the evaporation temperature of the indoor evaporator (4).
2. A heat pipe system refrigerant flow control device as claimed in claim 1, wherein: the indoor evaporator (4) is one or more, and an electronic expansion valve (3) is arranged at the liquid inlet of each indoor evaporator (4).
3. A heat pipe system refrigerant flow control device as claimed in claim 2, wherein: the control device for the refrigerant flow of the heat pipe system further comprises a refrigerant liquid pipe (7), and the supercooled refrigerant liquid enters the accumulator (2) through the refrigerant liquid pipe (7).
4. A heat pipe system refrigerant flow control device as claimed in claim 2, wherein: the control device for the refrigerant flow of the heat pipe system also comprises a refrigerant gas pipe (8), and the superheated gas is conveyed to the outdoor condenser (1) through the refrigerant gas pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643711.9A CN110631296A (en) | 2018-06-21 | 2018-06-21 | Control device for refrigerant flow of heat pipe system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643711.9A CN110631296A (en) | 2018-06-21 | 2018-06-21 | Control device for refrigerant flow of heat pipe system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110631296A true CN110631296A (en) | 2019-12-31 |
Family
ID=68966335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810643711.9A Pending CN110631296A (en) | 2018-06-21 | 2018-06-21 | Control device for refrigerant flow of heat pipe system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110631296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110744A1 (en) * | 2020-11-26 | 2022-06-02 | 华为数字能源技术有限公司 | Data center device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107689A (en) * | 1986-11-05 | 1988-05-18 | 株式会社竹中工务店 | Air-conditioning system |
| JPH01219434A (en) * | 1988-02-26 | 1989-09-01 | Takenaka Komuten Co Ltd | Air conditioning device in building |
| CN101975428A (en) * | 2010-11-02 | 2011-02-16 | 浙江大学 | Air-cooling thermotube-type machine room air-conditioning system |
| CN103307683A (en) * | 2013-07-04 | 2013-09-18 | 北京德能恒信科技有限公司 | Hot pipe and air conditioner all-in-one machine |
| CN203823985U (en) * | 2014-05-20 | 2014-09-10 | 宁波惠康实业有限公司 | Air conditioning unit for machine room |
| CN106885326A (en) * | 2017-04-17 | 2017-06-23 | 南京佳力图机房环境技术股份有限公司 | A kind of dynamic heat pipe backboard air-conditioning system and its control method |
| CN208653001U (en) * | 2018-06-21 | 2019-03-26 | 南京春荣节能科技有限公司 | A kind of control device of hot-pipe system refrigerant flow |
-
2018
- 2018-06-21 CN CN201810643711.9A patent/CN110631296A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107689A (en) * | 1986-11-05 | 1988-05-18 | 株式会社竹中工务店 | Air-conditioning system |
| JPH01219434A (en) * | 1988-02-26 | 1989-09-01 | Takenaka Komuten Co Ltd | Air conditioning device in building |
| CN101975428A (en) * | 2010-11-02 | 2011-02-16 | 浙江大学 | Air-cooling thermotube-type machine room air-conditioning system |
| CN103307683A (en) * | 2013-07-04 | 2013-09-18 | 北京德能恒信科技有限公司 | Hot pipe and air conditioner all-in-one machine |
| CN203823985U (en) * | 2014-05-20 | 2014-09-10 | 宁波惠康实业有限公司 | Air conditioning unit for machine room |
| CN106885326A (en) * | 2017-04-17 | 2017-06-23 | 南京佳力图机房环境技术股份有限公司 | A kind of dynamic heat pipe backboard air-conditioning system and its control method |
| CN208653001U (en) * | 2018-06-21 | 2019-03-26 | 南京春荣节能科技有限公司 | A kind of control device of hot-pipe system refrigerant flow |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110744A1 (en) * | 2020-11-26 | 2022-06-02 | 华为数字能源技术有限公司 | Data center device |
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