CN218820767U - Heat pipe condensation exhaust heat recovery unit - Google Patents
Heat pipe condensation exhaust heat recovery unit Download PDFInfo
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- CN218820767U CN218820767U CN202223587091.2U CN202223587091U CN218820767U CN 218820767 U CN218820767 U CN 218820767U CN 202223587091 U CN202223587091 U CN 202223587091U CN 218820767 U CN218820767 U CN 218820767U
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- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 230000005494 condensation Effects 0.000 title claims abstract description 10
- 238000009833 condensation Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000005057 refrigeration Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000012546 transfer Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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]
- Y02B30/56—Heat recovery units
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- Central Air Conditioning (AREA)
Abstract
The utility model discloses a heat pipe condensation heat recovery unit of airing exhaust, include: the air supply unit comprises a first box body, a first heat pipe, a first coil pipe and an air supply fan, and a fresh air port and an air supply port are formed in opposite side walls of the first box body; the exhaust unit comprises a second box body, a second heat pipe, a second coil pipe and an exhaust fan, wherein the opposite side walls of the second box body are provided with an air return inlet and an air outlet; one end of the first coil pipe is connected with the liquid storage device, and the other end of the first coil pipe is connected with the compressor; one end of the second coil pipe is connected with the liquid storage device, and the other end of the second coil pipe is connected with the compressor. The heat pipe condensation exhaust heat recovery unit achieves the energy-saving effect through cold quantity or heat quantity recovery.
Description
Technical Field
The utility model relates to a heat pipe condensation heat recovery unit of airing exhaust belongs to air conditioning technology field.
Background
The heat recovery unit is used for heating and preheating domestic hot water or production process hot water by recovering heat dissipation in a cooling water system, so that waste heat utilization can be realized, heat pollution of condensation heat to the environment is reduced, and the operating cost and noise of the cooling tower can be reduced. The heat recovery technology is applied to preheating of low-temperature hot water, so that the heat exchange efficiency is higher; when the method is applied to heating high-temperature hot water, the power consumption of a water chilling unit can be increased, but the total power consumption is low, so that a large amount of system operation cost can be saved no matter the heat recovery is utilized for preheating or the hot water is heated. Therefore, heat recovery units have been widely used.
In the chinese invention patent No. ZL 202110481470.4, a data center evaporative cooling and waste heat recovery unit is disclosed, which can be used for cooling a machine room, and comprises: cooling system, cooling system includes: the air duct is communicated with the machine room; the cooling device is arranged on the air inlet side of the air duct and can be used for cooling the machine room; a compression system, the compression system comprising: a compressor; the first heat exchange device is communicated with the compressor; the second heat exchange device is communicated with the first heat exchange device and the compressor, is positioned in the air duct and can absorb heat from the air duct; the heat exchange pipeline is provided with a water supply port and a water return port which are communicated, and the first heat exchange device can be used for supplying heat to the heat exchange pipeline.
However, the heat exchange efficiency of the heat recovery unit in the prior art needs to be continuously improved, and the heat recovery unit is also flexibly designed according to actual working conditions.
Disclosure of Invention
The utility model aims to solve the technical problem that a heat pipe condensation row wind heat recovery unit is provided.
In order to achieve the technical purpose, the utility model adopts the following technical proposal:
a heat pipe condensation exhaust heat recovery unit, which comprises,
the refrigerating system comprises a liquid storage device and a compressor which are connected through a pipeline,
the air supply unit comprises a first box body, a first heat pipe, a first coil pipe and an air supply fan, wherein a fresh air port and an air supply port are formed in the opposite side walls of the first box body;
the exhaust unit comprises a second box body, a second heat pipe, a second coil pipe and an exhaust fan, wherein the opposite side walls of the second box body are provided with an air return inlet and an air outlet;
one end of the first coil pipe is connected with the liquid storage device, and the other end of the first coil pipe is connected with the compressor;
one end of the second coil pipe is connected with the liquid storage device, and the other end of the second coil pipe is connected with the compressor.
Wherein preferably, the first coil pipe is arranged on one side of the box body far away from the fresh air port,
the first heat pipe, the refrigeration system, and the first coil pipe are arranged in this order along a direction from the fresh air inlet to the supply air outlet.
Preferably, the second coil pipe is arranged in the box body and between the second heat pipe and the exhaust fan.
Preferably, the first heat pipe is arranged at one end, close to the fresh air inlet, in the box body;
the second heat pipe is arranged at one end, close to the air return opening, in the box body.
Wherein preferably said first heat pipe and said second heat pipe are connected in series.
Preferably, the blower unit further comprises a humidifier located between the first coil and the blower.
Preferably, the air blower set further comprises a dry-wet bulb temperature sensor positioned near the air supply outlet.
Preferably, the second heat pipe, the second coil pipe and the exhaust fan are arranged in sequence from the air return inlet to the air outlet.
Preferably, a bypass air duct is arranged between the second heat pipe and the second coil pipe, and the bypass air duct is connected with a bypass air port and is independent of the fresh air duct and the exhaust air duct.
Preferably, the refrigeration system further comprises a pressure sensor for monitoring the pressure of the compressor discharge to open the bypass tuyere.
Compared with the prior art, the utility model has the following technical characteristics: 1) Through the design of the heat pipe, the energy-saving effect of recovering the cold quantity of the return air in summer and recovering the heat quantity of the return air in winter can be achieved; 2) The design of the bypass air port and the variable-frequency exhaust fan can realize the air quantity adjustment of the exhaust channel, improve the heat exchange quantity of the condenser and solve the high-pressure alarm risk of a high-temperature weather system; 3) The design of the air supply outlet dry-wet bulb temperature sensor enables the system to automatically control the opening and closing of the humidifier, so that the quality of supplied air can be effectively improved; 4) The split type design of air supply unit and exhaust fan unit is convenient for install split type unit according to operating condition.
Drawings
FIG. 1 is a schematic view of an overall structure of an air supply passage according to an embodiment of the present invention;
fig. 2 is a schematic view of the whole structure of the air exhaust channel in the embodiment of the present invention.
Detailed Description
The technical content of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and fig. 2, the utility model discloses a heat pipe condensation heat recovery unit of airing exhaust adopts split type design, including air supply unit and exhaust fan group and refrigerating system 100, refrigerating system 100 includes reservoir 101, compressor 102 and vapour and liquid separator 103 through the tube coupling, and for conventional design, preferred, refrigerating system 100 still includes pressure sensor.
The air supply unit comprises a first box body 1, and a first heat pipe 11, a first coil pipe 13, a humidifier 14 and an air supply fan 15 which are sequentially arranged in the box body. A fresh air inlet and an air supply outlet are formed in the opposite side walls of the first box body 1, and preferably, the air supply unit further comprises a wet bulb temperature sensor.
The exhaust unit comprises a second box body 2, a bypass air inlet arranged on the adjacent side wall of the air return inlet and the air outlet, and a second heat pipe 21, a second coil pipe 22 and an exhaust fan 23 which are sequentially arranged in the box body. And air return openings and air exhaust openings are formed in the opposite side walls of the second box body 2.
The first heat pipe 11 is arranged at one end of the box body 1 close to the fresh air inlet. The second heat pipe 21 is disposed at one end of the box 2 near the return air inlet. The first heat pipe 11 and the second heat pipe 21 are both U-shaped heat pipes, and the first heat pipe 11 and the second heat pipe 21 are connected in series, so that heat exchange can be performed by using internal working media. Moreover, the working medium is a liquid phase-change substance at normal temperature. When the U-shaped heat pipes work, the working medium inside the U-shaped heat pipes is in a flowing state under the influence of temperature difference, so that the two U-shaped heat pipes can be switched between the evaporator function and the condenser function.
The first coil 13 is arranged on one side of the box body 1 far away from the fresh air inlet, one end of the first coil is connected with a liquid storage device 101 of the refrigerating system, and the other end of the first coil is connected with a compressor 102 of the refrigerating system through a four-way valve. The second coil 22 is disposed between the second heat pipe 21 and the exhaust fan 23 in the box 2, and has one end connected to the liquid reservoir 101 of the refrigeration system 100 and the other end connected to the compressor 102 of the refrigeration system 100 through the four-way valve.
The humidifier 14 is installed in the cabinet 1 between the blower fan 15 and the first coil 13.
And the wet and dry bulb temperature sensor is positioned near the air supply outlet and used for judging whether the humidifier is started or not according to the air supply humidity signal fed back by the wet and dry bulb temperature sensor.
The air supply fan 15 is installed inside the air supply outlet of the box body 1. The exhaust fan 23 is a variable frequency fan and is installed at the inner side of the air outlet of the box body 2.
The fresh air inlet, the first heat pipe 11, the refrigerating system 100, the first coil pipe 13, the humidifier 14, the air supply fan 15 and the air supply outlet are sequentially connected to form a fresh air channel. The air return inlet, the second heat pipe 21, the second coil pipe 22, the exhaust fan 23 and the air outlet are connected in sequence to form an exhaust air duct. The second heat pipe 21, the second coil pipe 22 and the exhaust fan 23 are arranged in sequence from the return air inlet to the exhaust outlet. A bypass duct is provided between the second heat pipe 21 and the second coil 22. The bypass air duct is connected with the bypass air port to form an air duct independent of the fresh air duct and the exhaust air duct.
When the outdoor temperature is higher than the indoor temperature, the system enters a refrigerating state. The first coil 11 connected to the refrigeration system 100 starts the evaporator function and cools the air. The second coil 22, which is connected to the refrigeration system 100, turns on the condenser function to warm the air.
Fresh air enters the box body 1 through a fresh air inlet and firstly passes through the first heat pipe 11. The working medium in the first heat pipe 11 absorbs the heat in the air, so that the temperature of the fresh air is reduced. The temperature of the fresh air is reduced, and the fresh air is cooled and dehumidified again when passing through the first coil pipe 13 with the evaporator function. The fresh air which is cooled and dehumidified twice by the first heat pipe 11 and the first coil pipe 13 in the fresh air duct passes through the air supply fan 15 and enters the room from the air supply outlet. Meanwhile, the indoor return air enters the case 2 through the return air inlet and first passes through the second heat pipe 21. Because the indoor temperature is lower than the outdoor temperature in summer, the working medium in the second heat pipe 21 absorbs the cold energy in the return air, so that the temperature of the return air is increased. The return air having the increased temperature is heated again when passing through the second coil 22 having the condenser function. The return air heated twice by the second heat pipes 21 and the second coil 22 in the exhaust passage passes through the exhaust fan 23 and is discharged from the exhaust outlet.
In the process, the working medium in the first heat pipe 11 absorbs the heat in the air to cause the temperature of the first heat pipe 11 to rise. The working medium in the second heat pipe 21 reduces the temperature of the second heat pipe 21 due to the absorption of cold energy in the air. A temperature difference is formed between the first heat pipe 11 and the second heat pipe 21 connected in series. According to the law of conservation of energy, the heat in the first heat pipe 11 is transferred to the second heat pipe 21 through the flow of the working medium; the cold in the second heat pipe 21 is also transferred to the first heat pipe 11 by the flow of the working medium. The temperature of the first heat pipe 11 after energy transfer is reduced, so that the heat of fresh air can be continuously absorbed, and the temperature of the fresh air is reduced. The temperature of the second heat pipe 21 after energy transfer is increased, so that the return air cold quantity can be continuously absorbed, and the return air temperature is increased.
However, the increased return air temperature is detrimental to the heat dissipation and temperature reduction of the second coil 22, which functions as a condenser. In summer high-temperature weather, the second coil 22 of the air exhaust channel is easy to alarm at high temperature and high pressure. When a pressure sensor arranged in the press system monitors that the pressure of the press exhaust is greater than a preset pressure value (3.2 MPa), the bypass air opening is opened. Under the action of the variable-frequency exhaust fan 23, fresh air is introduced, the exhaust amount is increased, the heat exchange amount of an exhaust channel is increased, the temperature of the second coil pipe 22 with the condenser function is reduced, the system pressure is reduced, and the normal operation of the system is ensured.
Because outdoor temperature is higher than indoor temperature in summer, then the new trend temperature is higher than the return air temperature, so utilize the second heat pipe 21 that is located the passageway of airing exhaust to absorb the cold volume in the return air, reuse this cold volume and cool down the first heat pipe 11 that is located the new trend passageway, and then carry out the precooling to the new trend. By utilizing the design, the heat exchange efficiency is effectively improved, and the energy consumption is saved.
When the outdoor temperature is lower than the indoor temperature, the system enters a heating state. The first coil 11 starts the condenser function to heat the air. The second coil 22 turns on the evaporator function to cool the air.
The indoor return air enters the box body 2 through the return air inlet and firstly passes through the second heat pipe 21. Because the indoor temperature is higher than the outdoor temperature in winter, the working medium in the second heat pipe 21 absorbs the heat in the return air, so that the temperature of the return air is reduced. The return air with the reduced temperature is cooled again when passing through the second coil 22 having the evaporator function. The return air cooled twice by the second heat pipes 21 and the second coil 22 in the exhaust passage passes through the exhaust fan 23 and is discharged from the exhaust outlet. Meanwhile, fresh air enters the box body 1 through the fresh air inlet and firstly passes through the first heat pipe 11. The working medium in the first heat pipe 11 absorbs the cold energy in the air, so that the temperature of the fresh air is increased. The fresh air with the increased temperature is heated again when passing through the first coil pipe 13 with the condenser function. The fresh air heated twice by the first heat pipe 11 and the first coil pipe 13 in the fresh air duct passes through the air supply fan 15 and enters the room from the air supply port.
In the process, a temperature difference is formed between the second heat pipe 21 for absorbing heat and increasing temperature and the first heat pipe 11 for dissipating heat and reducing temperature. According to the law of conservation of energy, the heat in the second heat pipe 21 is transferred to the first heat pipe 11 through the flow of the working medium; the cold in the first heat pipe 11 is also transferred to the second heat pipe 21 by the flow of the working medium. The temperature of the second heat pipe 21 after energy transfer is reduced, so that the return air heat can be continuously absorbed, and the return air temperature is reduced. The temperature of the first heat pipe 11 after energy transfer rises, so that the cold quantity of fresh air can be continuously absorbed, and the temperature of the fresh air is increased.
Because the indoor temperature is higher than the outdoor temperature in winter, the return air temperature is higher than the fresh air temperature, so the heat in the return air is absorbed by the second heat pipes 21 positioned in the exhaust channel, and the first heat pipes 11 positioned in the fresh air channel are heated by the heat, so that the fresh air is preheated. The heat exchange efficiency is effectively improved by utilizing the design.
Preferably, no matter summer or winter, send into indoor new trend when setting up the wet-dry bulb temperature sensor at the supply-air outlet, wet-dry bulb temperature sensor feeds back the wet degree data of new trend to the system, and the system judges whether to open humidifier 14 according to the data that wet-dry bulb temperature sensor provided, can effectively improve air supply quality.
To sum up, the utility model has the following technical characteristics: 1) Through the design of the heat pipe, the energy-saving effects of recovering the cooling capacity of the return air in summer and recovering the heat of the return air in winter can be achieved; 2) The design of the bypass air port and the variable-frequency exhaust fan can realize the air quantity adjustment of the exhaust channel, improve the heat exchange quantity of the condenser and solve the high-pressure alarm risk of a high-temperature weather system; 3) The design of the air supply outlet dry-wet bulb temperature sensor enables the system to automatically control the opening and closing of the humidifier, so that the quality of supplied air can be effectively improved; 4) The split type design of air supply unit and exhaust fan unit is convenient for install split type unit according to operating condition.
The heat pipe condensing and exhausting heat recovery unit provided by the present invention has been described in detail. Any obvious modifications thereto, which would occur to one skilled in the art and which would not depart from the essence of the invention, would constitute a violation of the patent rights and would bear corresponding legal obligations.
Claims (10)
1. A heat pipe condensation exhaust heat recovery unit is characterized by comprising,
the refrigerating system comprises a liquid storage device and a compressor which are connected through a pipeline,
the air supply unit comprises a first box body, a first heat pipe, a first coil pipe and an air supply fan, wherein a fresh air port and an air supply port are formed in the opposite side walls of the first box body;
the exhaust unit comprises a second box body, a second heat pipe, a second coil pipe and an exhaust fan, wherein an air return port and an air outlet are formed in the opposite side walls of the second box body;
one end of the first coil pipe is connected with the liquid storage device, and the other end of the first coil pipe is connected with the compressor;
one end of the second coil pipe is connected with the liquid storage device, and the other end of the second coil pipe is connected with the compressor.
2. The heat pipe condensing exhaust heat recovery unit according to claim 1, wherein:
the first coil pipe is arranged on one side of the box body far away from the fresh air opening,
the first heat pipe, the refrigeration system, and the first coil pipe are arranged in this order along a direction from the fresh air inlet to the supply air outlet.
3. The heat pipe condensing exhaust heat recovery unit according to claim 2, wherein:
the second coil pipe is arranged in the box body and between the second heat pipe and the exhaust fan.
4. The heat pipe condensing and exhausting heat recovery unit according to claim 3, wherein:
the first heat pipe is arranged at one end, close to the fresh air opening, in the box body;
the second heat pipe is arranged at one end, close to the air return opening, in the box body.
5. The heat pipe condensing and exhausting heat recovery unit according to claim 4, wherein:
the first heat pipe and the second heat pipe are connected in series.
6. The heat pipe condensing exhaust heat recovery unit according to claim 5, wherein:
the air supply unit further comprises a humidifier, and the humidifier is located between the first coil pipe and the air supply fan.
7. The heat pipe condensing and exhausting heat recovery unit according to claim 6, wherein:
the air supply unit also comprises a dry-wet bulb temperature sensor which is positioned near the air supply outlet.
8. The heat pipe condensing and exhausting heat recovery unit according to claim 6, wherein:
and the second heat pipe, the second coil pipe and the exhaust fan are sequentially arranged from the air return inlet to the air outlet.
9. The heat pipe condensing exhaust heat recovery unit according to claim 8, wherein:
and a bypass air duct is arranged between the second heat pipe and the second coil pipe, is connected with a bypass air port and is independent of the fresh air duct and the exhaust air duct.
10. The heat pipe condensing and exhausting heat recovery unit according to claim 9, wherein:
the refrigeration system also includes a pressure sensor that monitors the compressor discharge pressure to open the bypass tuyere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223587091.2U CN218820767U (en) | 2022-12-31 | 2022-12-31 | Heat pipe condensation exhaust heat recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223587091.2U CN218820767U (en) | 2022-12-31 | 2022-12-31 | Heat pipe condensation exhaust heat recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218820767U true CN218820767U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223587091.2U Active CN218820767U (en) | 2022-12-31 | 2022-12-31 | Heat pipe condensation exhaust heat recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218820767U (en) |
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2022
- 2022-12-31 CN CN202223587091.2U patent/CN218820767U/en active Active
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