CN115703652A - Ocean temperature difference energy sea water desalination device - Google Patents

Ocean temperature difference energy sea water desalination device Download PDF

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Publication number
CN115703652A
CN115703652A CN202110926260.1A CN202110926260A CN115703652A CN 115703652 A CN115703652 A CN 115703652A CN 202110926260 A CN202110926260 A CN 202110926260A CN 115703652 A CN115703652 A CN 115703652A
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China
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seawater
chamber
impeller
water
condensation
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CN202110926260.1A
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任工厂
夏超
孙新春
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Hainan Taililai Technology Co ltd
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Hainan Taililai Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination

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Abstract

A sea temperature difference energy sea water desalination device, deep cold sea water enters a water inlet impeller under the condition of large pressure difference at two ends, drives the water inlet impeller to rotate and do work, then enters a condensation chamber, cools water vapor outside a pipe, after the temperature rises, enters a heat regenerator to be heated by a hot end, the temperature further rises, then enters a steam generation chamber, is continuously heated by heat conducted by surface hot sea water through a heat pipe, after a large amount of water vapor is evaporated, the quality is reduced, the concentration is high, and the water enters a water discharge impeller after flowing through the heat regenerator, and is driven by the water discharge impeller to be discharged outside the device; the steam evaporated by the deep seawater in the steam generating chamber is cooled by the cold seawater which just enters the condensing chamber, is condensed into fresh water, falls into the fresh water tank, and finally flows into the fresh water storage tank, so that the working process of seawater desalination is completed. The device consumes almost no extra power, provides industrial application prospect for seawater installation, and has wider application occasions.

Description

Ocean temperature difference energy sea water desalination device
Technical Field
The invention relates to the technical field of seawater desalination, in particular to an ocean temperature difference energy seawater desalination device.
Background
The sea water temperature difference energy is an important form of ocean energy as a renewable energy source, generally refers to the heat energy of the water temperature difference between the surface layer sea water and the deep layer cold sea water of the ocean, and the surface of the ocean converts most of the radiation energy of the sun into hot water and stores the hot water in the upper layer of the ocean. At present, people mainly focus on the two aspects of ocean temperature difference energy power generation and ocean temperature difference energy seawater desalination, because the temperature difference of upper and lower layers of seawater is lower, the efficiency of temperature difference power generation is lower, and the temperature difference energy seawater desalination is more and more emphasized along with the continuous expansion of people's demand for fresh water resources.
The temperature of the seawater is from the surface of the sea to 1000 meters deep, the water temperature rapidly drops, when the water depth is below 1000 meters, the temperature difference between the surface of the seawater and the cold seawater in the deep layer is higher, near a coastline, because the water is shallow, the temperature difference between the seawater in the upper layer and the seawater in the lower layer is almost zero, the seawater temperature difference can be applied to the sea area with deeper seawater and far off the shore, the consumed power of the seawater desalination unit is basically realized by solar power generation, and the cost of the seawater desalination unit by the seawater temperature difference can be increased, and the industrial application is difficult.
Disclosure of Invention
The invention aims to: aiming at the technical problems, the ocean temperature difference energy seawater desalination device with high efficiency, low cost and reliable operation is provided.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an ocean difference in temperature can sea water desalination device, is including taking place-condensing equipment, condensation chamber, the vacuum pump, gaseous check valve, the condensation heat exchange tube, the fresh water groove, the regenerator, the drainage impeller, the impeller of intaking, magnetic drive rotary device, sea water check valve, the steam generation room, the heat pipe, the fin, the liquid distribution device, keep off the liquid device, the fresh water storage tank, its characterized in that: the inlet end of the water inlet impeller is connected with a deep cold seawater inlet, the outlet end of the water inlet impeller is connected with the seawater inlet end of the condensing chamber, the seawater outlet end of the condensing chamber is connected with the cold end inlet end of the heat regenerator, the cold end outlet end of the heat regenerator is connected with the seawater inlet end of the steam generation chamber, the seawater outlet end of the lower end of the steam generation chamber is connected with the inlet end of a seawater one-way valve, the outlet end of the seawater one-way valve is connected with the hot end inlet end of the heat regenerator, the hot end outlet end of the heat regenerator is connected with the inlet end of the drainage impeller, and the outlet end of the drainage impeller is connected with a seawater outlet to form the working cycle of deep cold seawater; an outlet at the bottom of the fresh water tank in the condensation chamber is connected with an inlet end of a fresh water storage tank to form a working line for storing fresh water; the water inlet impeller and the water discharge impeller are fixed into a whole through the magnetic transmission rotating device to form the seawater transmission power device of the device.
Preferably, the central shafts of the drainage impeller and the water inlet impeller are respectively provided with a plurality of magnetic shoes, the drainage impeller and the water inlet impeller are separated from the magnetic transmission rotating device through a non-magnetic shielding material, when the drainage impeller rotates, the magnetic force on the central shaft drives the magnetic transmission rotating device to rotate, and the magnetic transmission rotating device drives the water inlet impeller to rotate, so that the water inlet and drainage circulation of deep cold seawater is completed.
Preferably, the generating-condensing device is a vacuum pressure container, the internal structure of the generating-condensing device consists of a condensing chamber and a steam generating chamber, the condensing chamber is arranged above the steam generating chamber, and the middle of the generating-condensing device is separated by a liquid blocking device; the condensing chamber comprises a condensing heat exchange tube and a fresh water tank, and the fresh water tank is positioned right below the condensing heat exchange tube; the steam generating chamber comprises a liquid distribution device and a heat pipe, and the heat pipe is positioned right below the liquid distribution device.
Preferably, the heat pipe consists of a pipe shell, a liquid absorption core and an end cover, wherein the pipe shell is made of a stainless steel pipe, and the pressure in the pipe is pumped to 1.3 x 10 -4 Pa, the heat pipe is divided into an upper end and a lower end, the lower end is arranged below the sea level, the upper end is arranged in the steam generating chamber and is arranged in a row of pipes, fins are machined at the upper end and are hydrophilic fins and are machined from hydrophilic aluminum foils, and the upper end of the heat pipe is machined into a whole with the fins in a pipe expanding mode.
Preferably, the condensation heat exchange tube is welded and fixed in the condensation chamber through a metal support, is processed into a snake-shaped coil or a tube array for distribution, is made of a copper tube or a seawater corrosion resistant aluminum alloy tube, and is provided with fins on the surface.
Preferably, the fresh water tank is of a disc-shaped structure, is located under the condensation heat exchange tube and has a depth of 2-3 cm, and a connecting pipe is arranged in the center and connected with a fresh water storage tank.
Preferably, the liquid blocking device consists of an outer frame, a liquid blocking plate and a connecting plate, and can prevent seawater droplets in the steam generation chamber from entering the upper condensation chamber.
Preferably, a gas outlet end of the upper part of the condensation chamber is connected with an inlet end of a gas one-way valve, an outlet end of the gas one-way valve is connected with an inlet end of a vacuum pump, and an outlet end of the vacuum pump is connected with the atmosphere to form a vacuum pumping line of the device.
Preferably, the heat regenerator is a detachable plate heat exchanger and is assembled by stainless steel heat exchange fins.
Compared with the prior art, the invention has the following remarkable effects:
(1) According to the technical scheme, the device hardly consumes additional power, provides industrial application prospects for seawater installation, and is wider in application occasions.
(2) According to the technical scheme, deep cold seawater serving as a condensing medium enters the condensing chamber, the temperature of the deep cold seawater rises and then enters the steam generating chamber, the deep cold seawater is continuously heated under the condition of heating by the heat pipe, a large amount of steam is evaporated, the temperature difference energy of the seawater is fully utilized, and the efficiency is higher.
(3) The main body generation-condensation device of the device has a simple structure, the upper layer and the lower layer of the inner part are provided, the middle part is provided with the liquid blocking device to prevent seawater from polluting fresh water on the upper part, the device can continue to operate under the conditions of bumping and shaking, and the device is more typhoon-resistant and has better prospect in marine application.
(4) The cold seawater circulation flow of the device can provide power for the inlet and outlet transmission of cold seawater by the seawater temperature difference, can continuously work without incondensable gas infiltration, and is convenient and reliable.
Drawings
FIG. 1 is a schematic structural flow diagram of an embodiment of an ocean thermal energy desalination apparatus of the present invention.
In the figure: 1. the device comprises a generating-condensing device, 2, a condensing chamber, 3, a vacuum pump, 4, a gas one-way valve, 5, a condensing heat exchange tube, 6, a fresh water tank, 7, a heat regenerator, 8, a drainage impeller, 9, a water inlet impeller, 10, a magnetic transmission rotating device, 11, a one-way valve, 12, a steam generating chamber, 13, a heat pipe, 14, fins, 15, a liquid distribution device, 16, a liquid blocking device, 17 and a fresh water storage tank.
Detailed Description
The invention is illustrated in further detail by the following examples.
An ocean temperature difference energy seawater desalination device is shown in figure 1 and comprises a generation-condensation device 1, a condensation chamber 2, a vacuum pump 3, a gas one-way valve 4, a condensation heat exchange tube 5, a fresh water tank 6, a heat regenerator 7, a drainage impeller 8, a water inlet impeller 9, a magnetic transmission rotating device 10, a seawater one-way valve 11, a steam generation chamber 12, a heat pipe 13, fins 14, a liquid distribution device 15, a liquid blocking device 16 and a fresh water storage tank 17, and the working principle of the ocean temperature difference energy seawater desalination device is as follows: because the interior of the generating-condensing device 1 is vacuum, deep cold seawater enters the water inlet impeller 9 under the condition of large pressure difference between two ends, drives the water inlet impeller 9 to rotate and do work, then enters the condensing chamber 2, enters the interior of the condensing heat exchange tube 5, cools vapor outside the condensing heat exchange tube 5, after the temperature rises, the deep seawater enters the heat regenerator 7, is continuously heated by the hot end of the heat regenerator 7, the temperature further rises, then enters the steam generating chamber 12, in the interior of the steam generating chamber 12, the seawater is uniformly distributed on the surface of the fins 14 by the liquid distributing device 15, is continuously heated by heat conducted by the surface hot seawater through the heat pipe 13, the mass is reduced and the concentration is increased after a large amount of vapor is evaporated, then the seawater enters the hot end of the heat regenerator 7, the seawater at the cold end is heated, and then enters the drainage impeller 8, the drainage impeller 8 is driven by the magnetic transmission rotating device 10, the impeller rotates and drives the seawater with high concentration and reduced mass to be discharged out of the device; the vapor evaporated by the deep seawater in the steam generating chamber 12 is cooled by the cold seawater which just enters the condensing heat exchange tube 5 in the condensing chamber 2, is condensed into fresh water, falls into the fresh water tank 6, and finally flows into the fresh water storage tank 17, thereby completing the working process of seawater desalination.
The water inlet impeller 9 is fixed with the water discharge impeller 8 into a whole through the magnetic transmission rotating device 10 to form a seawater transmission power device of the device, deep cold seawater enters the water inlet impeller 9 under the condition of large pressure difference between two ends to drive the water inlet impeller 9 to rotate to do work, a central shaft of the water inlet impeller 9 is provided with a plurality of magnetic shoes, the magnetic transmission rotating device 10 is driven to rotate under the action of magnetic force, and the magnetic transmission rotating device 10 also drives the central shaft to consist of the water discharge impeller 8 with the plurality of magnetic shoes when rotating, so that the seawater which is evaporated to generate large amount of water vapor and has much less quality can be discharged outside the seawater discharge device, and the power transmission work of a deep seawater inlet and a deep seawater outlet is completed.
The generating-condensing device 1 is a vacuum pressure container, the internal structure of which consists of a condensing chamber 2 and a steam generating chamber 12, wherein the condensing chamber 2 is arranged above the steam generating chamber 12, and the middle part of the condensing chamber is separated by a liquid blocking device 16; the condensing chamber 2 comprises a condensing heat exchange tube 5 and a fresh water tank 6, and the fresh water tank 6 is positioned right below the condensing heat exchange tube 5; the steam generating chamber 12 comprises a liquid distribution device 15 and a heat pipe 13, wherein the heat pipe 13 is positioned right below the liquid distribution device 15.
The heat pipe 13 is composed of a pipe shell, a liquid absorption core and end covers, wherein the pipe shell is made of stainless steel pipes, and the pressure in the pipe is pumped to 1.3 multiplied by 10 -4 Pa, the heat pipe 13 is divided into an upper end and a lower end, the lower end is arranged below the sea level, the upper end is arranged in the steam generating chamber 12 and is arranged in a row of pipes, the upper end is provided with fins 14, the fins 14 are hydrophilic fins and are formed by processing hydrophilic aluminum foils, and the upper end of the heat pipe 13 is processed into a whole with the fins 14 in a pipe expanding mode.
The condensation heat exchange tube 5 is fixed inside the condensation chamber 2 through a metal support in a welding mode, is processed into a snake-shaped coil or a tube array for distribution, is made of a copper tube or a seawater corrosion resistant aluminum alloy tube, and is provided with fins in a surface processing mode.
The fresh water tank 6 is of a disc-shaped structure, is located under the condensation heat exchange tube 5, is 2-3cm in depth, and is connected with the fresh water storage tank 17 through a connecting pipe in the center.
The liquid blocking device 15 is composed of an outer frame, a liquid blocking plate and a connecting plate, and can prevent seawater droplets in the steam generating chamber 12 from entering the upper condensing chamber 2.
The non-condensable gas in the condensation chamber 2 is exhausted out of the atmosphere through the opening at the upper part and the gas one-way valve 4 by the vacuum pump 3, so that the vacuum environment in the device is ensured.
The heat regenerator 7 is a detachable plate heat exchanger and is assembled by stainless steel heat exchange sheets, so that the heat regenerator is more convenient to maintain.

Claims (9)

1. The utility model provides an ocean temperature difference energy sea water desalination device, including taking place-condensing equipment (1), condensation chamber (2), vacuum pump (3), gaseous check valve (4), condensation heat exchange tube (5), fresh water groove (6), regenerator (7), drainage impeller (8), impeller (9) of intaking, magnetic drive rotary device (10), sea water check valve (11), steam generation chamber (12), heat pipe (13), fin (14), liquid distribution device (15), keep off liquid device (16), fresh water storage tank (17), its characterized in that: the inlet end of the water inlet impeller (9) is connected with a deep cold seawater inlet, the outlet end of the water inlet impeller (9) is connected with the seawater inlet end of the condensing chamber (2), the seawater outlet end of the condensing chamber (2) is connected with the cold end inlet end of the heat regenerator (7), the cold end outlet end of the heat regenerator (7) is connected with the seawater inlet end of the steam generating chamber (12), the seawater outlet end of the lower end of the steam generating chamber (12) is connected with the inlet end of the seawater one-way valve (11), the outlet end of the seawater one-way valve (11) is connected with the hot end inlet end of the heat regenerator (7), the hot end outlet end of the heat regenerator (7) is connected with the hot end inlet end of the drainage impeller (8), and the outlet end of the drainage impeller (8) is connected with the seawater outlet, so that the working cycle of deep cold seawater is formed; an outlet at the bottom of the fresh water tank (6) in the condensation chamber (2) is connected with an inlet end of a fresh water storage tank (17) to form a working line for storing fresh water; the water inlet impeller (9) and the water discharge impeller (8) are fixed into a whole through a magnetic transmission rotating device (10) to form the seawater transmission power device of the device.
2. The ocean thermal energy seawater desalination device of claim 1, wherein: the central shafts of the drainage impeller (8) and the water inlet impeller (9) are provided with a plurality of magnetic shoes, the drainage impeller (8), the water inlet impeller (9) and the magnetic transmission rotating device (10) are separated by a non-magnetic shielding material, when the drainage impeller (8) rotates, the magnetic transmission rotating device (10) is driven by the magnetic force on the central shaft to rotate, the water inlet impeller (9) is driven by the magnetic transmission rotating device (10) to rotate, and the water inlet and the water outlet circulation of deep cold seawater is completed.
3. The ocean thermal energy seawater desalination device of claim 1, wherein: the generation-condensation device (1) is a vacuum pressure container, the internal structure of the generation-condensation device is composed of a condensation chamber (2) and a steam generation chamber (12), the condensation chamber (2) is arranged above, the steam generation chamber (12) is arranged below, and the middle of the generation-condensation device is separated by a liquid blocking device (16); the condensing chamber (2) comprises a condensing heat exchange tube (5) and a fresh water tank (6), and the fresh water tank (6) is positioned under the condensing heat exchange tube (5); the steam generating chamber (12) comprises a liquid distribution device (15) and a heat pipe (13), and the heat pipe (13) is positioned right below the liquid distribution device (15).
4. The ocean thermal energy seawater desalination device of claim 1, wherein: the heat pipe (13) is composed of a pipe shell, a liquid absorption core and an end cover, wherein the pipe shell is made of stainless steel pipes, and the pressure in the pipe is pumped to 1.3 multiplied by 10 -4 Pa, the heat pipe (13) is divided into an upper end and a lower end, the lower end is arranged below the sea level, the upper end is arranged in the steam generating chamber (12) and arranged in a row of pipes, fins (14) are processed at the upper end, the fins (14) are hydrophilic fins and are processed by hydrophilic aluminum foils, and the upper end of the heat pipe (13) is processed into a whole with the fins (14) in a pipe expanding mode.
5. The ocean thermal energy seawater desalination device of claim 1, wherein: the condensation heat exchange tube (5) is fixed inside the condensation chamber (2) through a metal support in a welding mode, is processed into a snake-shaped coil or a tube array for distribution, is made of a copper tube or a seawater corrosion resistant aluminum alloy tube, and is provided with fins in a surface processing mode.
6. The ocean thermal energy seawater desalination device of claim 1, wherein: the fresh water tank (6) is of a disc-shaped structure, is located under the condensation heat exchange tube (5) and has a depth of 2-3 cm, and a connecting tube is arranged in the center and connected with the fresh water storage tank (17).
7. The ocean thermal energy seawater desalination device of claim 1, wherein: the liquid blocking device (15) consists of an outer frame, a liquid blocking plate and a connecting plate, and can prevent seawater droplets in the steam generation chamber (12) from entering the upper condensation chamber (2).
8. The ocean thermal energy seawater desalination device of claim 1, wherein: and a gas outlet end at the upper part of the condensing chamber (2) is connected with an inlet end of a gas one-way valve (4), an outlet end of the gas one-way valve (4) is connected with an inlet end of a vacuum pump (3), and an outlet end of the vacuum pump (3) is connected with the atmosphere to form a vacuum-pumping line of the device.
9. The ocean thermal energy seawater desalination device of claim 1, wherein: the heat regenerator (7) is a detachable plate heat exchanger and is formed by assembling stainless steel heat exchange sheets.
CN202110926260.1A 2021-08-12 2021-08-12 Ocean temperature difference energy sea water desalination device Pending CN115703652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110926260.1A CN115703652A (en) 2021-08-12 2021-08-12 Ocean temperature difference energy sea water desalination device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110926260.1A CN115703652A (en) 2021-08-12 2021-08-12 Ocean temperature difference energy sea water desalination device

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CN115703652A true CN115703652A (en) 2023-02-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116499123A (en) * 2023-05-09 2023-07-28 内蒙古科技大学 Solar heat driven heat superconducting evaporation type water-electricity cogeneration device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116499123A (en) * 2023-05-09 2023-07-28 内蒙古科技大学 Solar heat driven heat superconducting evaporation type water-electricity cogeneration device and method
CN116499123B (en) * 2023-05-09 2024-06-04 内蒙古科技大学 Solar heat driven heat superconducting evaporation type water-electricity cogeneration device and method

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