CN216790925U - Evaporation cooling system with heat recovery function - Google Patents
Evaporation cooling system with heat recovery function Download PDFInfo
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- CN216790925U CN216790925U CN202123431364.XU CN202123431364U CN216790925U CN 216790925 U CN216790925 U CN 216790925U CN 202123431364 U CN202123431364 U CN 202123431364U CN 216790925 U CN216790925 U CN 216790925U
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Abstract
The utility model discloses an evaporation cooling system with a heat recovery function, which comprises a heat exchange system and a cooling water circulation system, wherein the heat exchange system comprises a shell-and-tube heat exchanger communicated with a refrigerant outlet of a compressor and a coil communicated with the refrigerant outlet of the shell-and-tube heat exchanger; the cooling water circulation system comprises a first cooling water circulation system used for exchanging heat with the shell-and-tube heat exchanger and a second cooling water circulation system used for exchanging heat with the coil; the first cooling water circulation system comprises a first pipeline communicated with a water inlet of the shell-and-tube heat exchanger and a second pipeline connected with a water outlet of the shell-and-tube heat exchanger; the second cooling water circulation system comprises a third pipeline communicated with the water tank and a spraying device communicated with the third pipeline. The utility model changes the spraying mode and the heat exchange mode, and exchanges heat with the refrigerant at the outlet of the compressor through the shell-and-tube heat exchanger, so that a large amount of absorbed heat can be reasonably and comprehensively utilized.
Description
Technical Field
The utility model relates to refrigeration equipment, in particular to an evaporation cooling system with a heat recovery function.
Background
The evaporative cooling is to take away the heat of condensation by using water evaporation and forced air circulation to cool the high-temperature high-pressure superheated steam discharged from the compressor and condense the steam into liquid. At present, a spray cooling mode is generally adopted by a plurality of manufacturers in China, namely when refrigerant at the outlet of a compressor passes through a coil pipe of a heat exchange tube bank, cooling water is distributed to each layer of tube bundle from a water distributor at the upper part of the heat exchange tube bank through a spray header, the cooling water flows into a water tank through a packing layer at the upper part of a water tank after heat exchange is finished, the cooling water is pumped to a pipeline by a circulating water pump and is sent to the water distributor for recycling, and the structure of the cooling water is shown as figure 1.
The refrigerant at the outlet of the compressor has higher enthalpy, and although the cooling effect of the spraying mode is better, a certain amount of heat exchange coil pipes and equivalent cooling water are necessary to meet the process requirements by adopting the cooling mode, so that the space volume of a spraying system is larger, and equipment is clumsy; on the other hand, the heat energy after heat exchange with the heat refrigerant is not reasonably and comprehensively utilized, so that waste is caused.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the problems in the prior art, the utility model provides an evaporation cooling system with a heat recovery function, a spraying mode and a heat exchange mode are changed, a shell-and-tube heat exchanger and a refrigerant at the outlet of a compressor exchange heat firstly, and a large amount of absorbed heat can be reasonably and comprehensively utilized.
The technical scheme is as follows: the evaporation cooling system with the heat recovery function comprises a heat exchange system and a cooling water circulation system, wherein the heat exchange system comprises a shell-and-tube heat exchanger communicated with a refrigerant outlet of a compressor and a coil pipe communicated with the refrigerant outlet of the shell-and-tube heat exchanger; the cooling water circulation system comprises a first cooling water circulation system for exchanging heat with the shell-and-tube heat exchanger and a second cooling water circulation system for exchanging heat with the coil; the first cooling water circulation system comprises a first pipeline communicated with a water inlet of the shell-and-tube heat exchanger and a second pipeline connected with a water outlet of the shell-and-tube heat exchanger; the second cooling water circulation system comprises a third pipeline communicated with the water tank and a spraying device communicated with the third pipeline.
As a preferable structure of the present invention, the water inlet of the first pipe is communicated with the water tank.
As a preferred structure of the present invention, the water outlet of the water tank is connected to a water outlet main pipe, and the water inlet of the third pipeline and the water inlet of the first pipeline are respectively communicated with the water outlet of the water outlet main pipe.
As a preferable structure of the present invention, the water outlet main pipe is provided with a first valve for adjusting the water output of the water outlet main pipe.
In a preferred structure of the present invention, the first pipe is provided with a second valve for adjusting the water output of the first pipe.
As a preferable structure of the utility model, the shell-and-tube heat exchanger is arranged above the spraying device.
As a preferable structure of the present invention, a water pump is provided between the water tank and the water outlet header pipe.
As a preferable structure of the present invention, the shower device includes a shower pipe and a nozzle provided on the shower pipe.
As a preferable structure of the utility model, a filler is arranged below the coil
As a preferable structure of the utility model, the shell-and-tube heat exchanger, the spraying device, the water tank, the water pump and the filler form a skid-mounted structure.
Has the advantages that: (1) according to the utility model, the shell-and-tube heat exchanger is arranged between the outlet of the compressor and the heat exchange coil pipe, so that the refrigerant is cooled in advance, and a large amount of absorbed heat can be reasonably and comprehensively utilized; (2) the shell-and-tube heat exchanger shares part of heat exchange tasks, reduces the pressure of subsequent spraying, thereby reducing the length of the copper coil and the using amount of spraying water, reducing the space volume of the spraying device, reducing corresponding fillers, water tanks and water pumps, and saving the cost of cooling the refrigerant and further exchanging heat with the spraying device for cooling; (3) according to the utility model, the shell-and-tube heat exchanger is arranged at the upper part of the spray device, a refrigerant at the outlet of the compressor exchanges heat with the shell-and-tube heat exchanger, cooling water on the tube side of the shell-and-tube heat exchanger is provided after water in a water tank in the system is pressurized by a water pump (the other part is used for spraying), the temperature of outlet water on the tube side is increased after the heat of the refrigerant is fully absorbed by the shell-and-tube heat exchanger, and the hot water can be comprehensively utilized for other production procedures; (4) according to the utility model, the shell-and-tube heat exchanger, the spraying device, the filler, the water tank and the water pump are organically combined into a skid-mounted structure, the modular design is realized, the independent unit operation is realized, the space is saved, the operation is convenient, and meanwhile, the heat recovery and comprehensive utilization are carried out.
Drawings
FIG. 1 is a schematic diagram of an evaporative spray system of an evaporative cooling apparatus in the prior art;
fig. 2 is a schematic structural diagram of an evaporative cooling system with a heat recovery function according to embodiment 1.
Detailed Description
The structure of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1: as shown in fig. 1, the evaporative cooling system with heat recovery function of the present invention has an evaporation chamber 100, and a heat exchange system 1 and a cooling water circulation system 2 are disposed in the evaporation chamber 100.
The heat exchange system comprises a shell-and-tube heat exchanger 101 communicated with a refrigerant outlet of a compressor 1 and a coil 102 communicated with the refrigerant outlet of the shell-and-tube heat exchanger 101; the high-temperature refrigerant sent from the compressor firstly exchanges heat through the shell-and-tube heat exchanger 101 and then enters the coil 102 of the evaporation cooling system for heat exchange again. As a preferred structure of this embodiment, the shell-and-tube heat exchanger 101 is disposed at an upper position of the shower device 302.
The cooling water circulation system 2 of the present invention includes a first cooling water circulation system 200 for exchanging heat with the shell-and-tube heat exchanger 101 and a second cooling water circulation system 300 for exchanging heat with the coil 102. The first cooling water circulation system 200 comprises a first pipeline 201 communicated with a water inlet of the shell-and-tube heat exchanger 101 and a second pipeline 202 connected with a water outlet of the shell-and-tube heat exchanger 101; the second cooling water circulation system 300 includes a third pipe 301 communicating with the water tank 3 and a shower device 302 communicating with the third pipe 301, and the shower device 302 includes a shower pipe 3021 and a nozzle 3022 provided on the shower pipe 3021.
As a preferred structure of the present invention, the shell-and-tube heat exchanger 101 is supplied with water through a water tank in the evaporative cooling system, and specifically, the water inlet of the first pipe 201 is communicated with the water tank 3. In order to realize the allocation with the second cooling water circulation, in this embodiment, the water outlet of the water tank 3 is connected to the water outlet header pipe 303, the water inlet of the third pipeline 301 and the water inlet of the first pipeline 201 are respectively communicated with the water outlet of the water outlet header pipe 303, the water outlet header pipe 303 is provided with a first valve 304 for adjusting the water output of the water outlet header pipe 303, the first pipeline 201 is provided with a second valve 305 for adjusting the water output of the first pipeline 201, the water pump 4 arranged between the water tank and the water outlet header pipe sends the cooling water to the first cooling water circulation system 200 and the second cooling water circulation system 300, and the distribution of the cooling water flow is realized through the first valve 304 and the second valve 305. The cooling water of the tube side of the shell-and-tube heat exchanger is provided after the water in a water tank 3 of the system is pressurized by a water pump 4 (the other part is used for a spraying device 302), the temperature of the outlet water of the tube side is increased after the heat of the refrigerant is fully absorbed by the shell-and-tube heat exchanger 101, and the hot water can be used for producing other processes for comprehensive utilization. The cooled refrigerant is further subjected to heat exchange with cooling water sent by the spraying device to be cooled.
The evaporative cooling system further comprises a filler 5 arranged below the coil 102 and a fan 6 arranged at the top of the evaporation cavity 100, and the shell-and-tube heat exchanger 101, the spraying device 302, the water tank 3, the water pump 4 and the filler 5 in the evaporative cooling system of the embodiment form a skid-mounted structure, are in modular design and are operated independently, so that the space is saved, the operation is convenient, and meanwhile, the heat recovery and comprehensive utilization are carried out.
The working process of the evaporation cooling system is as follows: the refrigerant enters the shell-and-tube heat exchanger 101 from the outlet of the compressor, enters the heat exchange coil 102 from the upper part of the heat exchange tube group, is distributed to each row of tubes through the header, and flows out from the lower pipe orifice of the coil 102 after heat exchange. The cooling water is sent to the spray device 302 on the upper part of the heat exchange tube group by a water pump 4, a high-efficiency anti-blocking type spray head (a spray nozzle 3022) is arranged on a spray pipe 3021 of the spray device 302, the water is uniformly distributed on each group of calandria, the water flows down on the outer surface of the coil pipe in a film shape, when the water flows through the heat exchange tube group, the medium in the pipe is cooled by means of the evaporation latent heat of the water by virtue of the evaporation of the water, and finally the water falls into the water pool through a packing layer on the upper part of the water pool for recycling. Meanwhile, fresh air entering from the outside of the air windows around the lower side of the cooler by an axial flow type induced draft fan (fan 6) takes away water vapor in time, and conditions are created for continuous evaporation of a water film.
Claims (10)
1. An evaporation cooling system with a heat recovery function is characterized by comprising a heat exchange system (1) and a cooling water circulation system (2), wherein the heat exchange system (1) comprises a shell-and-tube heat exchanger (101) communicated with a refrigerant outlet of a compressor and a coil (102) communicated with a refrigerant outlet of the shell-and-tube heat exchanger (101); the cooling water circulation system (2) comprises a first cooling water circulation system (200) for exchanging heat with the shell-and-tube heat exchanger (101) and a second cooling water circulation system (300) for exchanging heat with the coil (102); the first cooling water circulation system (200) comprises a first pipeline (201) communicated with a water inlet of the shell-and-tube heat exchanger (101) and a second pipeline (202) connected with a water outlet of the shell-and-tube heat exchanger (101); the second cooling water circulation system (300) includes a third pipe (301) communicating with a water tank (3) and a shower device (302) communicating with the third pipe (301).
2. The evaporative cooling system with heat recovery function as recited in claim 1, wherein the water inlet of the first pipe (201) is communicated with a water tank (3).
3. The evaporative cooling system with heat recovery function as claimed in claim 2, wherein a water outlet of the water tank (3) is connected with a water outlet header pipe (303), and the water inlet of the third pipeline (301) and the water inlet of the first pipeline (201) are respectively communicated with the water outlet of the water outlet header pipe (303).
4. The evaporative cooling system with the heat recovery function as recited in claim 3, wherein the water outlet main pipe (303) is provided with a first valve (304) for adjusting the water outlet amount of the water outlet main pipe (303).
5. The evaporative cooling system with heat recovery function as recited in claim 4, wherein the first pipe (201) is provided with a second valve (305) for adjusting the amount of water discharged from the first pipe (201).
6. Evaporative cooling system with heat recovery according to claim 5, characterized in that the shell-and-tube heat exchanger (101) is arranged above the spray device (302).
7. The evaporative cooling system with heat recovery function as recited in claim 6, wherein a water pump (4) is provided between the water tank and the water outlet header.
8. The evaporative cooling system with heat recovery function as recited in claim 7, wherein the shower device (302) includes a shower pipe (3021) and a nozzle (3022) provided on the shower pipe (3021).
9. Evaporative cooling system with heat recovery according to claim 8, characterized by the fact that the coils are provided with a filler (5) underneath.
10. The evaporative cooling system with heat recovery function as claimed in claim 9, wherein the shell-and-tube heat exchanger (101), the spray device (302), the water tank (3) and the water pump (4) and the packing (5) constitute a skid-mounted structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123431364.XU CN216790925U (en) | 2021-12-30 | 2021-12-30 | Evaporation cooling system with heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123431364.XU CN216790925U (en) | 2021-12-30 | 2021-12-30 | Evaporation cooling system with heat recovery function |
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| Publication Number | Publication Date |
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| CN216790925U true CN216790925U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123431364.XU Active CN216790925U (en) | 2021-12-30 | 2021-12-30 | Evaporation cooling system with heat recovery function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307384A (en) * | 2022-07-21 | 2022-11-08 | 中国石油大学(华东) | Intelligent drilling fluid cooling system for polar region drilling and working method thereof |
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2021
- 2021-12-30 CN CN202123431364.XU patent/CN216790925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307384A (en) * | 2022-07-21 | 2022-11-08 | 中国石油大学(华东) | Intelligent drilling fluid cooling system for polar region drilling and working method thereof |
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