CN111018026A - Heat pump seawater desalination device for bilateral utilization of evaporator condenser - Google Patents
Heat pump seawater desalination device for bilateral utilization of evaporator condenser Download PDFInfo
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- CN111018026A CN111018026A CN202010018472.5A CN202010018472A CN111018026A CN 111018026 A CN111018026 A CN 111018026A CN 202010018472 A CN202010018472 A CN 202010018472A CN 111018026 A CN111018026 A CN 111018026A
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- 239000013535 sea water Substances 0.000 title claims abstract description 142
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 56
- 230000002146 bilateral effect Effects 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 239000003507 refrigerant Substances 0.000 claims abstract description 67
- 239000013505 freshwater Substances 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 claims description 10
- 239000013589 supplement Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 9
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 238000011033 desalting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention belongs to the technical field of seawater desalination, and particularly relates to a heat pump seawater desalination device with an evaporator and a condenser utilized on both sides, wherein a refrigerant circulating system comprises a compressor, a condenser, a throttle valve and an evaporator, a first seawater desalination system comprises a first seawater tank, a first water pump, a condenser, a vacuum pump, a first heat exchanger and a fresh water tank, seawater in the first seawater tank is pumped to the condenser by the first water pump to be heated and vaporized to form water vapor without salt content; the second seawater desalination system comprises a second seawater tank, a second water pump and an evaporator, and seawater in the second seawater tank is pumped to a seawater channel of the evaporator by the second water pump to form ice without salt. The condenser and the evaporator are combined together to prepare fresh water, so that the seawater desalination speed is increased, and the seawater desalination cost is saved.
Description
Technical Field
The invention belongs to the technical field of seawater desalination, and particularly relates to a heat pump seawater desalination device with an evaporator and a condenser used on both sides.
Background
The global water resource shortage is a common recognition of people, the fresh water resources in China are rich, the total reserve is in the first 6 places of the world, but the per-capita fresh water quantity is far lower than the average level of the world due to the large population base. In the northern part and coastal areas of China, the situation of water resource shortage is particularly severe, and great influence is caused on the sustainable development of the economy of China. In the face of the situation, seawater desalination is one of the important ways to solve the crisis problem of freshwater resources in China.
The seawater desalination technology is a process of separating water and salt in seawater by a physical or chemical method to obtain fresh water. At present, the most common desalination methods mainly comprise a thermal method and a membrane method, wherein the thermal method can be divided into multi-stage flash evaporation, multi-stage evaporation and vapor compression distillation, and the membrane method can be divided into a reverse osmosis method and an electrodialysis method, but the defects of high technical difficulty, high cost and poor product water quality generally exist. Meanwhile, the common heat pump type seawater desalination device only utilizes the heat quantity at the condenser side and neglects the cold quantity at the evaporator side. Therefore, a device which can reduce desalination cost, can be popularized in a large range and is energy-saving is needed to meet the existing requirements.
Disclosure of Invention
The invention aims to solve the problems and provides a heat pump seawater desalination device with an evaporator and a condenser used on both sides.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a heat pump seawater desalination device with double-side utilization of an evaporator and a condenser comprises a refrigerant circulating system, wherein the refrigerant circulating system comprises a compressor, a condenser, a throttle valve and an evaporator, and further comprises a first seawater desalination system and a second seawater desalination system, wherein the first seawater desalination system comprises a first seawater tank, a first water pump, a condenser, a vacuum pump, a first heat exchanger and a fresh water tank; the vacuum pump enables the first seawater desalination system to be in a vacuum state, and the first seawater tank is communicated with a seawater inlet of the condenser through the first water pump; a water vapor outlet of the condenser is communicated with the fresh water tank through the vacuum pump and the first heat exchanger in sequence; the first seawater tank is provided with a seawater supplement port, and the condenser is provided with a wastewater outlet. The second seawater desalination system comprises a second seawater tank, a second water pump and an evaporator; the second seawater tank is communicated with the seawater channel inlet of the evaporator through a second water pump; the second seawater tank is provided with a seawater supplement port, and the evaporator is provided with an ice discharge port and a wastewater outlet.
Further, the refrigerant cycle system further includes a second heat exchanger; the second heat exchanger is connected with the evaporator in parallel, and the throttle valve refrigerant outlet is also communicated with the refrigerant inlet of the compressor through the second heat exchanger; the steam outlet of the vacuum pump is also communicated with the steam pipeline inlet in the evaporator, and the steam pipeline outlet is communicated with the fresh water tank.
Furthermore, a heat exchanger in the evaporator is a metal flat plate, the water vapor pipeline and the refrigerant pipeline both penetrate through one side of the metal flat plate, and the interior of the other side of the metal flat plate is hollow to form the seawater channel.
Furthermore, a third stop valve is arranged on a pipeline between the steam outlet of the vacuum pump and the steam inlet of the evaporator; the third stop valve is connected with the first heat exchanger in parallel, and a steam outlet of the vacuum pump is communicated with a steam pipeline inlet in the evaporator through the third stop valve.
Furthermore, a fourth stop valve is arranged on a pipeline between the throttle valve refrigerant outlet and the evaporator refrigerant inlet; and the fourth stop valve is connected with the second heat exchanger in parallel, and the throttle valve refrigerant outlet is communicated with the evaporator refrigerant inlet through the fourth stop valve.
Furthermore, a fifth stop valve is arranged on a pipeline between the refrigerant outlet of the second heat exchanger and the refrigerant inlet of the compressor; the fifth stop valve is connected with the evaporator in parallel; and the refrigerant outlet of the second heat exchanger is communicated with the refrigerant inlet of the compressor through a fifth stop valve.
Further, a first stop valve is arranged on a pipeline between the first seawater tank and the first water pump.
Further, a second stop valve is arranged on a pipeline between the second seawater tank and the second water pump.
Furthermore, the first heat exchanger and the second heat exchanger are both forced convection air-cooled fin heat exchangers.
Compared with the prior art, the invention has the beneficial technical effects that:
according to the invention, by recovering the latent heat of condensation at the condenser side of the heat pump, seawater is heated at the condenser side to form vapor without salt, so that seawater desalination is completed; meanwhile, the cold energy at the evaporator side of the heat pump is utilized to freeze the seawater at the evaporator side to form ice without salt, thereby completing seawater desalination; the condenser and the evaporator are combined together to produce fresh water, so that the seawater desalination speed is increased, and the seawater desalination cost is saved.
Drawings
FIG. 1 is a connection structure diagram of a heat pump seawater desalination device utilized on both sides of an evaporator and a condenser in this embodiment;
fig. 2 is a structural view of the evaporator of the present embodiment.
In the figure: 1-a compressor, 2-a condenser, 3-a first seawater tank, 4-a first water pump, 5-a throttle valve, 6-a second water pump, 7-a second seawater tank, 8-an evaporator, 9-a second heat exchanger, 10-a fresh water tank, 11-a vacuum pump, 12-a first heat exchanger, 101-a first stop valve, 102-a second stop valve, 103-a third stop valve, 104-a fourth stop valve, 105-a fifth stop valve, 13-a water vapor pipeline, 14-a seawater channel, 15-a refrigerant pipeline and 16-an ice discharge port.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
As shown in fig. 1 and fig. 2, the heat pump seawater desalination apparatus for bilateral utilization of the evaporator and the condenser in the present embodiment includes a refrigerant circulation system, a first seawater desalination system, and a second seawater desalination system. The refrigerant circulating system comprises a compressor 1, a condenser 2, a throttle valve 5 and an evaporator 8, wherein the compressor 1, the condenser 2, the throttle valve 5 and the evaporator 8 are sequentially connected through pipelines to form a closed refrigerant circulating loop, an outlet of the compressor 1 is connected with a refrigerant inlet of the condenser 2, a refrigerant outlet of the condenser 2 is connected with an inlet of the throttle valve 5, an outlet of the throttle valve 5 is connected with a refrigerant inlet of the evaporator 8, and a refrigerant outlet of the evaporator 8 is connected with an inlet of the compressor 1. The first seawater desalination system comprises a first seawater tank 3, a first water pump 4, a condenser 2, a vacuum pump 11, a first heat exchanger 12 and a fresh water tank 10. In order to heat and vaporize the seawater to form steam without salt, the vacuum pump 11 makes the first seawater desalination system in a vacuum state. The first seawater tank 3 is communicated with a seawater inlet of the condenser 2 through a first water pump 4. The water vapor outlet of the condenser 2 is communicated with the fresh water tank 10 sequentially through the vacuum pump 11 and the first heat exchanger 12. The first seawater tank 3 is provided with a seawater supplement port, and the condenser 2 is provided with a wastewater outlet. Seawater in the first seawater tank 3 is sent to the condenser 2 by the first water pump 4 to be heated and vaporized to form water vapor without salt, the water vapor enters the first heat exchanger 12 by the vacuum pump 11 to be condensed to form fresh water and then enters the fresh water tank 10, and high-concentration wastewater in the condenser is discharged from a wastewater outlet of the condenser. The second seawater desalination system comprises a second seawater tank 7, a second water pump 6 and an evaporator 8. The second seawater tank 7 is communicated with the inlet of the seawater channel 14 of the evaporator 8 through a second water pump 6. The second seawater tank 7 is provided with a seawater supplement port, and the evaporator 8 is provided with an ice discharge port 16 and a wastewater outlet. The seawater in the second seawater tank 7 is sent to the seawater channel 14 of the evaporator 8 by the second water pump 6 to form ice without salt, the ice is discharged from an ice discharge port 16 after being melted or broken, and the high-concentration wastewater is discharged from a wastewater outlet.
In the evaporator 8, the refrigerant flows in the corresponding refrigerant pipeline 15, the seawater flows in the seawater channel 14 outside the refrigerant pipeline 15, and the refrigerant transfers cold energy to the seawater, so that the seawater is frozen on the inner wall of the seawater channel 15. In the condenser 2, the refrigerant flows in the corresponding refrigerant pipeline, the seawater flows in the corresponding seawater pipeline, and the heat released by the refrigerant is transferred to the seawater, so that the seawater is changed into vapor. In the embodiment, fresh water is prepared by the condenser 2 and the evaporator 8 at the same time, and seawater is heated to form vapor without salt at the condenser 2 side by recovering the latent heat of condensation at the condenser 2 side of the heat pump, so that the seawater desalination is completed; meanwhile, the cold energy at the evaporator 8 side of the heat pump is utilized to freeze the seawater at the evaporator 8 side to form ice without salt, thereby completing seawater desalination. The condenser 2 and the evaporator 8 are combined together to produce fresh water, so that the seawater desalination speed is increased, and the seawater desalination cost is saved.
The refrigerant cycle system further includes a second heat exchanger 9. The second heat exchanger 9 is connected with the evaporator 8 in parallel, and the refrigerant outlet of the throttle valve 5 is also communicated with the refrigerant inlet of the compressor 1 through the second heat exchanger 9. The steam outlet of the vacuum pump 11 is also communicated with the inlet of a steam pipeline 13 in the evaporator 8, and the outlet of the steam pipeline 13 is communicated with the fresh water tank 10. When ice is made, water vapor at the outlet of the vacuum pump 11 enters the first heat exchanger 12, and refrigerant flowing out of the throttle valve 5 enters the compressor 1 through the evaporator 8. During deicing, the outlet of the vacuum pump 11 is communicated with a water vapor pipeline 13 in the evaporator 8. A part of the water vapor at the outlet of the vacuum pump 11 enters the first heat exchanger 12, and the other part of the water vapor enters the water vapor pipeline 13 to melt the ice in the seawater channel 14; the water vapor pipeline 13 is communicated with the fresh water tank 10, condensed water formed in the water vapor pipeline 13 by the water vapor enters the fresh water tank 10, and refrigerant flowing out of the throttle valve 5 enters the compressor 1 through the second heat exchanger 9. The steam flow line formed between the vacuum pump 11, the evaporator 8 and the fresh water tank 10 is also in a vacuum state. When the water vapour line 13 leading into the evaporator melts the ice in the evaporator seawater channel 14, the refrigerant is prohibited from passing into the evaporator 8 and the second heat exchanger 9 acts as an evaporator to maintain normal operation of the refrigerant cycle.
In order to improve the heat exchange efficiency between the refrigerant in the evaporator 8 and the seawater and also between the water vapor in the water vapor pipeline 13 and the ice blocks in the seawater channel 14, the heat exchanger in the evaporator 8 is a metal flat plate. The water vapor pipeline 13 and the refrigerant pipeline 15 both penetrate through one side of the metal flat plate, and the inside of the other side of the metal flat plate is hollow to form the seawater channel 14. The metal flat plate has high heat conductivity coefficient, and when ice is made, the refrigerant quickly transfers cold energy to seawater to freeze the seawater; during ice melting, the water vapor quickly transfers heat to the ice blocks to melt the ice blocks.
In order to facilitate the entry of water vapour into the evaporator 8, the conduit between the outlet of the vacuum pump 11 and the inlet of the evaporator 8 is provided with a third stop valve 103. The third stop valve 103 is connected in parallel with the first heat exchanger 12. The steam outlet of the vacuum pump 11 is communicated with the inlet of a water vapor pipeline 13 in the evaporator 8 through a third stop valve 103. During deicing, the third stop valve 103 is opened, and a part of the water vapor at the outlet of the vacuum pump 11 enters the first heat exchanger 12, and a part of the water vapor enters the water vapor pipeline 13 in the evaporator 8 through the third stop valve 103.
In order to facilitate ice melting, the refrigerant is prevented from entering the evaporator 8 and is made to enter the second heat exchanger 9, a fourth stop valve 104 is arranged on a pipeline between the refrigerant outlet of the throttle valve 5 and the refrigerant inlet of the evaporator 8, and the fourth stop valve 104 is connected with the second heat exchanger 9 in parallel. The refrigerant outlet of the throttle valve 5 is communicated with the refrigerant inlet of the evaporator 8 through a fourth shutoff valve 104. And a pipeline between the refrigerant outlet of the second heat exchanger 9 and the refrigerant inlet of the compressor 1 is provided with a fifth stop valve 105, and the fifth stop valve 105 is connected with the evaporator 8 in parallel. The refrigerant outlet of the second heat exchanger 9 communicates with the refrigerant inlet of the compressor 1 through a fifth shutoff valve 105. The fourth cut-off valve 104 is closed, the fifth cut-off valve 105 is opened, and the refrigerant flowing out of the throttle valve 5 enters the compressor 1 from the second heat exchanger 9. The fourth cut-off valve 104 is opened, the fifth cut-off valve 105 is closed, and the refrigerant flowing out of the throttle valve 5 enters the compressor 1 from the evaporator 8.
In order to open the first seawater desalination system conveniently, a first stop valve 101 is arranged on a pipeline between the first seawater tank 3 and the first water pump 4. In order to open the second seawater desalination system conveniently, a second stop valve 102 is arranged on a pipeline between the second seawater tank 7 and the second water pump 6. In order to enhance the heat exchange effect of the first heat exchanger 12 and the second heat exchanger 9, the first heat exchanger 12 and the second heat exchanger 9 are both forced convection air-cooled fin heat exchangers.
The seawater desalination process of the embodiment comprises an operation mode. In the operation mode, a first stop valve 101, a second stop valve 102 and a fourth stop valve 104 are opened, a third stop valve 103 and a fifth stop valve 105 are closed, seawater is pumped from a first seawater tank 3 by a first water pump 4 on the side of a condenser 2, a seawater pipeline is introduced to pass through the condenser 2 for heating and gasification, the principle that the condenser 2 obtains fresh water is based on the principle that salt is almost insoluble in low-pressure water vapor, a vacuum pump 11 is used for keeping a first seawater desalination system at a high vacuum degree during operation, then the condenser 2 is used for heating the seawater to evaporate and vaporize the seawater under the high vacuum, the obtained water vapor enters a heat exchanger 12 through a pipeline for condensation, and the obtained fresh water enters a fresh water tank 10; at the same time, on the evaporator 8 side, seawater is pumped from the second seawater tank 7 by the second water pump 6, passes into the seawater pipeline and freezes on the inner surface of the seawater channel 14 of the evaporator 8, and since the ice contains almost no salt, the ice can also be used as fresh water.
The seawater desalination process of the present embodiment further includes a deicing mode. In the deicing mode, on the basis of the operation mode, the third stop valve 103 and the fifth stop valve 105 are opened, the fourth stop valve 104 is closed, at this time, water vapor generated on the condenser 2 side reaches the fresh water tank 10 through the pipeline, enters the water vapor pipeline 13 inside the evaporator 8 through the third stop valve 103, heats ice blocks in the seawater channel 14 through the water vapor pipeline 13, melts the ice and falls off from the inner wall of the seawater channel 14, and is then discharged from the ice discharge port 16 of the evaporator 8 to obtain fresh water, and meanwhile, the water vapor for melting the ice blocks also meets condensation and returns to the fresh water tank 10 through the pipeline. Since the evaporator 8 is now used to melt ice and hot water vapor is introduced, the refrigerant is passed into the heat exchanger 9 to maintain the normal operation of the refrigerant circulation circuit. The operation mode and the deicing mode can be switched, when ice blocks are formed in the seawater channel 14 in the evaporator 8, the deicing mode can be entered, deicing is completed, and then the operation mode is returned. The embodiment can be used for desalting seawater and can also be used for desalting and extracting water in other solutions or sewage.
While the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that variations may be made in the embodiments without departing from the spirit of the invention, and such variations are to be considered within the scope of the invention.
Claims (9)
1. The utility model provides a heat pump sea water desalination device that two sides of evaporimeter condenser were utilized, includes refrigerant circulating system, and refrigerant circulating system includes compressor, condenser, choke valve and evaporimeter, its characterized in that:
also comprises a first seawater desalination system and a second seawater desalination system, wherein,
the first seawater desalination system comprises a first seawater tank, a first water pump, a condenser, a vacuum pump, a first heat exchanger and a fresh water tank; the vacuum pump enables the first seawater desalination system to be in a vacuum state, and the first seawater tank is communicated with a seawater inlet of the condenser through the first water pump; a water vapor outlet of the condenser is communicated with the fresh water tank through the vacuum pump and the first heat exchanger in sequence; the first seawater tank is provided with a seawater supplement port, and the condenser is provided with a wastewater outlet; the second seawater desalination system comprises a second seawater tank, a second water pump and an evaporator; the second seawater tank is communicated with the seawater channel inlet of the evaporator through a second water pump; the second seawater tank is provided with a seawater supplement port, and the evaporator is provided with an ice discharge port and a wastewater outlet.
2. The heat pump seawater desalination plant for bilateral utilization of evaporator-condenser according to claim 1, characterized in that:
the refrigerant cycle system further comprises a second heat exchanger; the second heat exchanger is connected with the evaporator in parallel, and the throttle valve refrigerant outlet is also communicated with the refrigerant inlet of the compressor through the second heat exchanger;
the steam outlet of the vacuum pump is also communicated with the steam pipeline inlet in the evaporator, and the steam pipeline outlet is communicated with the fresh water tank.
3. The heat pump seawater desalination plant for bilateral utilization of evaporator-condenser according to claim 2, characterized in that: the heat exchanger in the evaporator is a metal flat plate, the water vapor pipeline and the refrigerant pipeline both penetrate through one side of the metal flat plate, and the interior of the other side of the metal flat plate is hollow to form the seawater channel.
4. The heat pump seawater desalination plant for bilateral utilization of evaporator-condenser according to claim 2, characterized in that: a pipeline between the steam outlet of the vacuum pump and the steam inlet of the evaporator is provided with a third stop valve; the third stop valve is connected with the first heat exchanger in parallel, and a steam outlet of the vacuum pump is communicated with a steam pipeline inlet in the evaporator through the third stop valve.
5. The heat pump seawater desalination plant for double-sided utilization of evaporator condensers according to any one of claims 2 to 4, characterized in that: a fourth stop valve is arranged on a pipeline between the throttle valve refrigerant outlet and the evaporator refrigerant inlet; and the fourth stop valve is connected with the second heat exchanger in parallel, and the throttle valve refrigerant outlet is communicated with the evaporator refrigerant inlet through the fourth stop valve.
6. The heat pump seawater desalination plant for double-sided utilization of evaporator condensers according to any one of claims 2 to 4, characterized in that: a fifth stop valve is arranged on a pipeline between the refrigerant outlet of the second heat exchanger and the refrigerant inlet of the compressor; the fifth stop valve is connected with the evaporator in parallel; and the refrigerant outlet of the second heat exchanger is communicated with the refrigerant inlet of the compressor through a fifth stop valve.
7. The heat pump seawater desalination plant for bilateral utilization of evaporator-condenser according to claim 1, characterized in that: and a first stop valve is arranged on a pipeline between the first seawater tank and the first water pump.
8. The heat pump seawater desalination plant for bilateral utilization of evaporator-condenser according to claim 1, characterized in that: and a second stop valve is arranged on a pipeline between the second seawater tank and the second water pump.
9. The heat pump seawater desalination plant for bilateral utilization of evaporator-condenser according to claim 2, characterized in that: the first heat exchanger and the second heat exchanger are both forced convection air-cooled fin heat exchangers.
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| CN202010018472.5A CN111018026A (en) | 2020-01-08 | 2020-01-08 | Heat pump seawater desalination device for bilateral utilization of evaporator condenser |
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| CN202010018472.5A CN111018026A (en) | 2020-01-08 | 2020-01-08 | Heat pump seawater desalination device for bilateral utilization of evaporator condenser |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115010200A (en) * | 2022-08-10 | 2022-09-06 | 山东天瑞重工有限公司 | System for utilize sea water source heat pump to carry out sea water desalination |
| CN115594244A (en) * | 2022-10-17 | 2023-01-13 | 集美大学（Cn） | Floating type photovoltaic direct-drive refrigeration fresh water producing system |
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