CN112684416A - Energy-saving temperature-control type condensation pipe and integrated heat exchanger with same - Google Patents
Energy-saving temperature-control type condensation pipe and integrated heat exchanger with same Download PDFInfo
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- CN112684416A CN112684416A CN202011382704.1A CN202011382704A CN112684416A CN 112684416 A CN112684416 A CN 112684416A CN 202011382704 A CN202011382704 A CN 202011382704A CN 112684416 A CN112684416 A CN 112684416A
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- 238000009833 condensation Methods 0.000 title claims abstract description 27
- 230000005494 condensation Effects 0.000 title claims abstract description 27
- 239000000110 cooling liquid Substances 0.000 claims abstract description 49
- 239000003507 refrigerant Substances 0.000 claims abstract description 39
- 239000012530 fluid Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 49
- 238000001816 cooling Methods 0.000 abstract description 34
- 230000017525 heat dissipation Effects 0.000 abstract description 17
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000005057 refrigeration Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 26
- 239000002826 coolant Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000013526 supercooled liquid Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
An energy-saving temperature-control type condenser pipe comprises an outer pipe; the outer tube comprises a straight tube; an inner pipe is eccentrically arranged in at least one straight pipe. When the condenser pipe is applied to a refrigerating system: in a refrigeration mode, namely in the working state of the compressor, a refrigerant moves in the outer pipe, cooling liquid moves in the inner pipe, and air flows through the surfaces of the fins, so that the cooling liquid absorbs part of condensation heat in the outer pipe, the heat dissipation load of the air is reduced, and meanwhile, the cooling liquid adjusts the liquid supply temperature of equipment by utilizing the absorbed condensation heat, and the purpose of recycling the condensation heat is achieved; in the air cooling mode, the compressor does not work, high-temperature cooling liquid moves in the inner tube, low-temperature air flows through the surfaces of the fins, air-liquid mixed refrigerant in the outer tube is in a closed state, at the moment, one part of heat of the cooling liquid is dissipated to the air flowing through the surfaces of the fins in a vapor-liquid conversion mode of the refrigerant, and the other part of heat of the cooling liquid is dissipated to the air flowing through the surfaces of the fins in a heat conduction mode of the refrigerant.
Description
Technical Field
The invention relates to the field of cooling equipment, in particular to an energy-saving temperature-control type condensation pipe and an integrated heat exchanger with the condensation pipe.
Background
With the development of the vehicular radar technology in China, the heat dissipation capacity and the heat flux density of the modern radar antenna array surface are larger and larger. The traditional air cooling heat dissipation mode is difficult to meet the heat dissipation requirement of the modern radar antenna array surface. The heat dissipation mode of the modern radar antenna array surface is developed from traditional air cooling to liquid cooling.
The array surface liquid cooling device configured by the large-scale vehicle-mounted radar basically adopts two working modes due to the wide range of the using environment temperature (-40 ℃ to 50 ℃): dividing ambient air into a low-temperature state and a high-temperature state according to the temperature, and when the ambient temperature is in the low-temperature state, radiating heat by adopting a direct heat exchange mode of low-temperature air and cooling liquid, namely an air cooling mode for short; when the ambient temperature is in a high temperature state, a compressor refrigeration mode is adopted for heat dissipation, which is called a refrigeration mode for short.
The prior wavefront liquid cooling apparatus employs a stacked heat exchanger as shown in fig. 3, which is formed by mechanically stacking an air-to-coolant heat exchanger 10 and a condenser 40. The working principle of the current array surface liquid cooling device is shown in fig. 1 and fig. 2.
Fig. 1 shows an air cooling mode of a conventional front surface liquid cooling apparatus. In the air cooling mode, the compressor 20 does not operate, and at this time, the cooling liquid in the liquid storage tank 50 is sent to the antenna array surface by controlling the valve in the indoor unit, so as to cool the electronic components. The cooling liquid absorbing heat at the antenna front passes through the air-cooling liquid heat exchanger 10 and returns to the liquid storage tank 50. At this time, the cooling liquid exchanges heat with low-temperature air in the air-cooling liquid heat exchanger 10 to reduce the temperature. The cooled coolant enters the liquid storage tank 50 and is recycled. In this mode, the condenser 40 may also have a certain heat dissipation effect on the coolant in the air-coolant heat exchanger 10, but since the condenser 40 and the air-coolant heat exchanger 10 are independent from each other, the cooling effect of the condenser 40 on the air-coolant heat exchanger 10 is very low.
Fig. 2 shows the cooling mode of the current wavefront liquid cooling apparatus. In this mode, the compressor 20 is operated, and at this time, by controlling the valves in the indoor unit, the cooling liquid in the liquid storage tank 50 is sent to the antenna array surface by the circulation pump, so as to cool the electronic components. The cooling liquid absorbing heat at the antenna array surface is cooled after being evaporated by the plate evaporator 30 and then returns to the liquid storage tank 50 for recycling. The high-temperature and high-pressure refrigerant gas compressed by the compressor 20 enters the condenser 40 to be condensed into supercooled liquid, and the supercooled liquid is throttled by the thermostatic expansion valve, then changed into a low-temperature and low-pressure vapor-liquid mixture, enters the plate evaporator 30 to be evaporated, and absorbs the heat of the cooling liquid. The superheated refrigerant vapor flowing out of the plate evaporator 30 is sucked again by the compressor 20 and recycled.
In the specific design of the current array surface liquid cooling device, two modes share an axial flow fan, and an air-cooling liquid heat exchanger 10 and a condenser 40 are mechanically superposed to form a superposed heat exchanger, wherein the superposition mode is shown in fig. 3, and at the moment, the internal structures of the air-cooling liquid heat exchanger 10 and the condenser 40 are the same and are both shown in fig. 4. The stacked heat exchanger has the defects of thick thickness, large volume, heavy weight, large air resistance and the like, so that an axial flow fan with higher static pressure needs to be configured. Meanwhile, the condensation heat of the cooling liquid is generally directly discharged through air, so that the condensation heat is not effectively utilized, and the filling amount of the refrigerant is larger due to the stacked heat exchanger, so that the stacked heat exchanger is not beneficial to environmental protection.
Disclosure of Invention
In order to overcome the defects that a superposed heat exchanger adopted by a radar antenna array surface liquid cooling device in the prior art is large in size, high in energy consumption, low in energy efficiency and the like, the invention provides an energy-saving temperature-control type condensing pipe and an integrated heat exchanger with the condensing pipe.
The invention aims to adopt the following technical scheme:
an energy-saving temperature-control type condenser pipe comprises an outer pipe; the outer tube comprises a straight tube; an inner pipe is eccentrically arranged in at least one straight pipe; the axis of the inner pipe is parallel to the axis of the straight pipe.
Preferably, when the straight pipes are arranged horizontally, the axes of the inner pipes are offset downwards relative to the axes of the corresponding straight pipes, and a gap is reserved between the inner pipes and the straight pipes.
Preferably, the outer pipe comprises a plurality of straight pipes which are horizontally arranged and are distributed on the same vertical plane in a stacked mode, and adjacent straight pipes are connected through bent pipes.
Preferably, an inner pipe is arranged in each straight pipe.
Preferably, the outer tube is provided with fins on the outer periphery.
The invention aims to adopt the following technical scheme:
an integrated heat exchanger comprises a shell, wherein the energy-saving temperature-control type condenser pipe is arranged in the shell; one end of each outer pipe is used for inputting a refrigerant, and the other end of each outer pipe is used for outputting the refrigerant; one end of each inner pipe is used for inputting cooling liquid, and the other end of each inner pipe is used for outputting the cooling liquid.
Preferably, the flow direction of the fluid in the inner tube is opposite to the flow direction of the fluid in the corresponding straight tube.
Preferably, the axes of the straight tubes of each condenser tube in the housing are coplanar.
Preferably, the straight pipes of the condenser pipe are stacked in the vertical direction in the shell, and the axis of each straight pipe is parallel to the horizontal plane.
Preferably, each straight pipe can be provided with an inner pipe, and the inner pipes are arranged in parallel, so that the flowing directions of the fluids in the inner pipes are the same.
The invention has the advantages that:
(1) when the condenser pipe is applied to a refrigerating system, under a refrigerating mode, namely under the working state of a compressor, a refrigerant moves in the outer pipe, cooling liquid moves in the inner pipe, and air flows through the surfaces of the fins, so that the purpose that the cooling liquid absorbs part of condensation heat in the outer pipe, the heat dissipation load of the air is reduced, and meanwhile, the liquid supply temperature of equipment is adjusted by the cooling liquid by utilizing the absorbed condensation heat, and the purpose of recycling the condensation heat is achieved.
(2) When the condenser pipe is applied to a refrigerating system, under a refrigerating mode, namely under the working state of a compressor, the contact area between the outer pipe and the refrigerant is not changed, so that the heat exchange performance between the refrigerant and air is ensured, and the volume in the outer pipe is reduced due to the inner pipe in the outer pipe, so that the refrigerant filling amount of the refrigerating system is reduced, and the environment protection is facilitated.
(3) When the condenser pipe is applied to the integrated heat exchanger of the array surface liquid cooling device, the inner pipe is eccentrically arranged and conducts heat outwards through two modes of vapor-liquid conversion and direct heat conduction of a refrigerant, so that the heat dissipation of the internal cooling liquid of the antenna is realized through low-temperature air, and the heat dissipation effect of the antenna array surface in an air cooling mode is ensured. And the integrated heat exchanger replaces the superposed heat exchanger shown in the figure 3, so that the volume of the array surface liquid cooling device is reduced, the heat exchange efficiency is improved, the energy efficiency is improved, and the energy consumption is reduced.
Drawings
FIG. 1 is a schematic diagram of the operation of the array surface liquid cooling apparatus in an air cooling mode;
FIG. 2 is a schematic diagram of the operation of the front surface liquid cooling apparatus in the cooling mode;
FIG. 3 is a view of a stacked heat exchanger configuration;
fig. 4 is a schematic diagram showing the internal structure of the air-coolant heat exchanger and the condenser in the stacked heat exchanger.
FIG. 5 is a cross-sectional view of an energy-saving temperature-controlled condenser tube according to the present invention;
FIG. 6 is a cross-sectional view of an energy-saving temperature-controlled condenser tube according to the present invention;
fig. 7 is a schematic structural diagram of an integrated heat exchanger employed in a wavefront liquid cooling apparatus according to the present invention.
1. An outer tube; 11. a straight pipe; 12. bending the pipe; 2. an inner tube; 3. a housing; 4. and a fin.
Detailed Description
Referring to fig. 5 and 6, the energy-saving temperature-controlled condenser tube according to the present embodiment includes an outer tube 1; the outer tube 1 comprises a straight tube 11; an inner pipe 2 is eccentrically arranged in at least one straight pipe 11; the axis of the inner pipe 2 is parallel to the axis of the straight pipe 11.
When the condenser pipe in the embodiment is applied to a refrigerating system, under a refrigerating mode, namely, under a working state of a compressor, a refrigerant moves in the outer pipe 1, a cooling liquid moves in the inner pipe 2, and air flows through the surfaces of the fins 4, so that the cooling liquid absorbs part of condensation heat in the outer pipe 1, the heat dissipation load of the air is reduced, and meanwhile, the cooling liquid adjusts the liquid supply temperature by utilizing the absorbed condensation heat, and the purpose of recycling the condensation heat is achieved. In the air cooling mode, the compressor does not work, the refrigerant in a vapor-liquid mixed state is in a closed state in the outer tube 1, the cooling liquid with higher temperature moves in the inner tube 2, and air flows through the surfaces of the fins 4, at the moment, part of heat of the cooling liquid is radiated to the air flowing through the surfaces of the fins 4 in a vapor-liquid conversion mode of the refrigerant, and the other part of heat is radiated to the air flowing through the surfaces of the fins 4 in a refrigerant heat conduction mode. The vapor-liquid conversion heat dissipation mode of the refrigerant: the liquid refrigerant absorbs the heat of the inner pipe 2, then is vaporized and rises to condense and liquefy on the inner wall of the outer pipe 1, and the vapor-liquid conversion is circulated and reciprocated along with the flowing of the cooling liquid; the heat conduction mode of the refrigerant is as follows: the inner tube 2 dissipates heat by transferring heat to the outer tube 1 and fins 4 by the liquid refrigerant.
In the present embodiment, the arrangement of the straight pipe 11 increases the contact area between the refrigerant in the outer pipe 1 and the inner pipe 2, thereby improving the heat exchange effect between the refrigerant and the cooling liquid in the inner pipe 2. Simultaneously, through the eccentric settings of inner tube 2, can make inner tube 2 for straight tube 11 is on the lower side when putting outer tube 1, further increase the area of contact of the interior liquid refrigerant of outer tube 1 and inner tube 2 to improve the radiating effect of inner tube 2 under the air cooling mode, realize the quick heat dissipation of coolant liquid.
In this embodiment, the outer tube 1 includes a plurality of straight tubes 11 horizontally disposed and stacked on the same vertical plane, and adjacent straight tubes 11 are connected by a bent tube 12. Specifically, when the straight pipes 11 are arranged horizontally, the axis of each inner pipe 2 is offset downward with respect to the axis of the corresponding straight pipe 11, so as to increase the contact area of the inner pipe 2 with the liquid refrigerant. And a gap is left between the inner pipe 2 and the straight pipe 11. Therefore, in the refrigeration mode, namely when the compressor works, the inner pipe 2 is wrapped by the high-temperature and high-pressure refrigerant, and the required condensation heat of the cooling liquid in the inner pipe 2 is ensured to be quickly recovered; in the air cooling mode, when the compressor does not work, the contact area of the liquid refrigerant and the inner pipe 2 is increased, and the heat dissipation efficiency of the refrigerant to the cooling liquid is improved.
In this embodiment, the outer periphery of the outer tube 1 is provided with fins 4 to improve the heat dissipation effect of the outer tube 1: in a refrigeration mode, namely when the compressor works, the condensation heat dissipation effect on the refrigerant is improved; in the air cooling mode, i.e., when the compressor is not operating, the heat radiation effect of the outer tube 1 to the coolant by the refrigerant is improved.
In the embodiment, the number of the inner pipes 2 can be flexibly set according to the heat recovery amount of condensation or the heat dissipation amount of cooling liquid, and when the condenser pipe works, the heat recovery amount of condensation can be adjusted in real time by controlling the flow rate of the cooling liquid in the inner pipes 2, so that the control precision of the liquid supply temperature is ensured. Therefore, the condenser tube has high operational flexibility.
Referring to fig. 7, in the present embodiment, an integrated heat exchanger is further provided, which includes a casing 3, and the energy-saving and temperature-controlling condenser pipe provided by the present invention is disposed in the casing 3. One end of each outer tube 1 is used for inputting the refrigerant, and the other end of each outer tube 1 is used for outputting the refrigerant. One end of each inner pipe 2 is used for inputting cooling liquid, and the other end of each inner pipe 2 is used for outputting the cooling liquid.
When the integrated heat exchanger proposed in the present embodiment is applied to the front surface liquid cooling device shown in fig. 1, that is, when the stacked heat exchanger in the front surface liquid cooling device shown in fig. 1 is replaced with the integrated heat exchanger, the first circulation path of the cooling liquid is: a liquid storage tank 50, an antenna array surface, an inner tube 2 of the integrated heat exchanger, and a liquid storage tank 50; the second circulation path of the cooling liquid is as follows: from the liquid storage tank 50 to the antenna array surface, a part of the cooling liquid flowing out from the antenna array surface returns to the liquid storage tank through the plate evaporator 40, and the other part returns to the liquid storage tank 50 through the inner pipe 2 of the integrated heat exchanger; the refrigerant circulation path when the compressor is operated is as follows: compressor 20, outer tube 1 of integrated heat exchanger, plate evaporator 30, compressor 20.
Under the air cooling mode, the compressor is out of work, and the first kind of circulation route is walked to the coolant liquid, and the refrigerant in the outer tube 1 absorbs heat to inner tube 2 with vapour-liquid conversion and refrigerant heat conduction two kinds of modes, has realized dispelling the heat to the coolant liquid through low temperature air to the radiating effect to the antenna array face is guaranteed.
In the cooling mode, the compressor is operated and the cooling fluid follows the second circulation path. After the cooling liquid absorbs heat at the antenna array surface, one part of the cooling liquid is cooled through the plate-type evaporator, and the other part of the cooling liquid enters the inner tube 2 of the integrated heat exchanger to absorb condensation heat. The cooling liquid absorbing condensation heat in the integrated heat exchanger is mixed with the cooling liquid cooled by the plate-type evaporator, and the liquid supply temperature of the total cooling liquid is controlled within a specified range, so that the accurate temperature control of the antenna array surface is realized.
In the present embodiment, the straight pipes 11 of the respective condensation pipes in the housing 3 are parallel to each other, so as to facilitate the arrangement of the inner pipes. In specific implementation, an inner tube 2 can be arranged in each straight tube 11 to ensure the heat exchange effect.
In this embodiment, the straight pipes 11 of the condenser pipe are distributed vertically in the casing 3 to ensure the uniform heat exchange between the inner pipe 2 and the outer pipe 1.
In specific implementation, when the integrated heat exchanger of the invention is applied to the liquid cooling device with a front surface as shown in fig. 1, the inner pipes 2 can be connected in parallel with each other through the arrangement of the valves, so that the flowing directions of the liquid in the inner pipes 2 are the same; meanwhile, the flowing direction of the cooling liquid in the inner pipe 2 is opposite to the flowing direction of the refrigerant in the corresponding straight pipe 11, so that the uniform heat exchange effect is ensured.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An energy-saving temperature-control type condenser pipe is characterized by comprising an outer pipe (1); the outer pipe (1) comprises a straight pipe (11); an inner pipe (2) is eccentrically arranged in at least one straight pipe (11); the axial line of the inner tube (2) is parallel to the axial line of the straight tube (11).
2. The energy-saving temperature-controlling type condensation pipe according to claim 1, wherein when the straight pipes (11) are horizontally arranged, the axes of the inner pipes (2) are offset downwards relative to the axes of the corresponding straight pipes (11), and a gap is left between the inner pipes (2) and the straight pipes (11).
3. The energy-saving temperature-control condensation pipe according to claim 1, wherein the outer pipe (1) comprises a plurality of straight pipes (11) which are horizontally arranged and are stacked on the same vertical plane, and adjacent straight pipes (11) are connected through a bent pipe (12).
4. An energy-saving temperature-control type condensation pipe according to claim 3, characterized in that an inner pipe (2) is arranged in each straight pipe (11).
5. The energy-saving temperature-controlling type condensation pipe according to claim 1, wherein the outer pipe (1) is provided with fins (4) on the outer circumference.
6. An integrated heat exchanger, characterized by comprising a shell (3), wherein the shell (3) is internally provided with an energy-saving and temperature-controlling type condensation pipe according to any one of claims 1 to 5; one end of each outer pipe (1) is used for inputting a refrigerant, and the other end of each outer pipe (1) is used for outputting the refrigerant; one end of each inner pipe (2) is used for inputting cooling liquid, and the other end of each inner pipe (2) is used for outputting the cooling liquid.
7. An integrated heat exchanger according to claim 6, characterised in that the direction of flow of the fluid in the inner tube (2) is opposite to the direction of flow of the fluid in the corresponding straight tube (11).
8. An integrated heat exchanger according to claim 6, characterised in that the axes of the straight tubes (11) of each condenser tube are coplanar within the housing (3).
9. An integrated heat exchanger according to claim 8, characterised in that the straight tubes (11) of the condenser tube are arranged in a vertically stacked manner in the housing (3) and that the axis of each straight tube (11) is parallel to the horizontal plane.
10. An integrated heat exchanger according to claim 8, characterized in that an inner tube (2) is arranged in each straight tube (11), and that the inner tubes (2) are arranged in parallel, so that the flow direction of the fluid in the inner tubes (2) is the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382704.1A CN112684416A (en) | 2020-12-01 | 2020-12-01 | Energy-saving temperature-control type condensation pipe and integrated heat exchanger with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382704.1A CN112684416A (en) | 2020-12-01 | 2020-12-01 | Energy-saving temperature-control type condensation pipe and integrated heat exchanger with same |
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| Publication Number | Publication Date |
|---|---|
| CN112684416A true CN112684416A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011382704.1A Pending CN112684416A (en) | 2020-12-01 | 2020-12-01 | Energy-saving temperature-control type condensation pipe and integrated heat exchanger with same |
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| CN (1) | CN112684416A (en) |
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| CN110388837A (en) * | 2019-07-29 | 2019-10-29 | 珠海格力电器股份有限公司 | The control method of heat exchanger, outdoor machine of air-conditioner, air conditioner and heat exchanger |
| CN110433525A (en) * | 2019-06-27 | 2019-11-12 | 合肥通用机械研究院有限公司 | A kind of co_2 supercritical fluid extraction system with recuperation of heat |
| CN111295555A (en) * | 2017-11-01 | 2020-06-16 | 株式会社电装 | Equipment cooling device |
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2020
- 2020-12-01 CN CN202011382704.1A patent/CN112684416A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB230922A (en) * | 1923-12-20 | 1925-03-20 | William George Brettell | Improvements in and connected with refrigeration systems in which gases are liquified by compression and the liquid evaporated |
| JPH0444775A (en) * | 1990-06-12 | 1992-02-14 | Olympus Optical Co Ltd | Heating treating device |
| CN2516918Y (en) * | 2001-11-23 | 2002-10-16 | 李志领 | Directly-cooling micro-freezing antistaling device and special evaporimeter and condenser used on fishing boat |
| JP2010210139A (en) * | 2009-03-10 | 2010-09-24 | Orion Mach Co Ltd | Water-cooled condenser and refrigerating cycle device |
| CN203249442U (en) * | 2013-04-12 | 2013-10-23 | 嵊州市金雪制冷设备有限公司 | Novel sleeve evaporative condenser |
| CN107014226A (en) * | 2017-04-18 | 2017-08-04 | 航天科工哈尔滨风华有限公司 | A kind of radial heat pipe formula liquified natural gas vaporizer |
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