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CN111484093B - Solar power generation-seawater desalination device based on vortex engine - Google Patents

Solar power generation-seawater desalination device based on vortex engine Download PDF

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Publication number
CN111484093B
CN111484093B CN202010306726.3A CN202010306726A CN111484093B CN 111484093 B CN111484093 B CN 111484093B CN 202010306726 A CN202010306726 A CN 202010306726A CN 111484093 B CN111484093 B CN 111484093B
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seawater desalination
guide vane
heat
shed
vane fixing
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CN111484093A (en
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左潞
戴鹏展
丁玲
瞿宁
刘子涵
袁越
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Hohai University HHU
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Hohai University HHU
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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
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • 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
    • C02F1/043—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/34—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
    • F03D9/35—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects
    • F03D9/37—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects with means for enhancing the air flow within the tower, e.g. by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/02—Devices for producing mechanical power from solar energy using a single state working fluid
    • F03G6/04—Devices for producing mechanical power from solar energy using a single state working fluid gaseous
    • F03G6/045—Devices for producing mechanical power from solar energy using a single state working fluid gaseous by producing an updraft of heated gas or a downdraft of cooled gas, e.g. air driving an engine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • H02S10/12—Hybrid wind-PV energy systems
    • 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
    • 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
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/141—Wind power
    • 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
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • 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
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

本发明公开一种基于涡旋引擎的太阳能发电‑海水淡化装置，包括海水淡化池、位于海水淡化池上方的集热棚、位于海水淡化池与集热棚之间的预旋换热系统、位于集热棚上方的防风筒以及位于防风筒内部的风力涡轮机；所述海水淡化池用于蒸发海水，从而收集淡水；所述集热棚用于吸收太阳热能，对海水和集热棚内的气体进行加热；所述预旋换热系统用于对集热棚内的气体进行再加热、预旋和起旋，在集热棚中心产生更强且稳定的旋转上升热气流，同时在集热棚中心形成更强负压区，达到相应高度实体烟囱的负压效果，替代高耸烟囱，降低烟囱建造难度、风险与成本，消除烟囱对集热棚投影产生的副作用。所述防风筒用于防止外界大气流动对旋转上升的热气流产生干扰。

Figure 202010306726

The invention discloses a solar power generation-seawater desalination device based on a vortex engine, comprising a seawater desalination tank, a heat collection shed located above the seawater desalination tank, a pre-rotation heat exchange system located between the The wind shield above the heat collecting shed and the wind turbine inside the wind shield; the seawater desalination tank is used for evaporating sea water, thereby collecting fresh water; heating; the pre-swirl heat exchange system is used to reheat, pre-swirl and spin the gas in the heat-collecting shed to generate a stronger and more stable rotating upward hot air flow in the center of the heat-collecting shed, and at the same time in the heat-collecting shed A stronger negative pressure area is formed in the center to achieve the negative pressure effect of the corresponding height of the solid chimney, replacing the towering chimney, reducing the difficulty, risk and cost of chimney construction, and eliminating the side effect of the chimney on the projection of the heat collection shed. The wind shield is used to prevent the external atmospheric flow from disturbing the rotating and rising hot air flow.

Figure 202010306726

Description

Solar power generation-seawater desalination device based on vortex engine
Technical Field
The invention belongs to the technical field of solar power generation, seawater desalination and heat exchange, and particularly relates to a solar power generation-seawater desalination device based on a vortex engine.
Background
Solar energy is utilized to generate electricity and desalt seawater, and solar radiation energy can be fully utilized. In the existing power generation and seawater desalination system using solar energy, for example, patent 200810021605.3 discloses a device for chimney power generation and seawater desalination using solar energy, which combines a solar chimney power generation system and a solar seawater desalination system together, so that the solar energy conversion efficiency is greatly improved, and fresh water can be added for output.
However, the chimney with the height of hundreds of kilometers is difficult to construct, the cost is high, and the operation risk exists. In addition, partial projection of the chimney on the heat collecting shed can cause that the local temperature of the heat collecting shed is lower, air flow in the interference system is balanced, the maximum temperature rise of hot air flow is reduced, and the influence in a seawater desalination comprehensive system is more adverse.
Based on the concept of the atmospheric pre-swirl engine proposed by Louis Michaud, the convection pre-swirl is generated by using the pre-swirl type negative pressure generating device to generate a strong cyclone column (similar to tornado), so that an entity chimney can be replaced, and the non-chimney structure can make up the defects to a certain extent. At this time, how to maintain the stability of the convection vortex and how to continuously provide the "power" to the cyclone structure becomes a new problem.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a solar power generation-seawater desalination device based on a vortex engine, wherein a pre-rotation heat exchange system is used for heating, pre-rotating and rotating hot air in a heat collecting shed to form stronger and stable rotating ascending hot air; meanwhile, a stronger negative pressure area is formed in the center of the heat collecting shed, the negative pressure effect of the solid chimney with the corresponding height is achieved, the high-rise chimney is replaced, the chimney construction difficulty, risk and cost are reduced, and the side effect of the chimney on the projection of the heat collecting shed is eliminated.
In order to achieve the purpose, the invention adopts the technical scheme that:
a solar power generation-seawater desalination device based on a vortex engine comprises a seawater desalination pool, a heat collection shed positioned above the seawater desalination pool, a pre-rotation heat exchange system positioned between the seawater desalination pool and the heat collection shed, a wind-proof cylinder positioned above the heat collection shed and a wind turbine positioned inside the wind-proof cylinder;
the heat collecting shed comprises a transparent cover plate and a glass partition plate, the transparent cover plate is of a conical structure, an opening is formed in the conical top of the transparent cover plate, the bottom of the windproof cylinder is communicated with the opening in the top of the transparent cover plate, and an air inlet channel is formed between the transparent cover plate and the seawater desalination pool; the glass partition plate is obliquely arranged between the seawater desalination tank and the transparent cover plate through a bracket, and a fresh water collecting tank is arranged at the top of the bracket;
the pre-rotation heat exchange system comprises a flow equalizing pipe and a plurality of guide vane fixing plates, the guide vane fixing plates are uniformly arranged along the center of the seawater desalination tank in the circumferential direction, and gaps and included angles are formed between every two adjacent guide vane fixing plates; an exhaust gas channel is arranged in the guide vane fixing plate, and an air inlet of the exhaust gas channel is communicated with the flow equalizing pipe; the air inlet of the waste gas channel is arranged at the top end of the outer edge of the guide vane fixing plate, and the air outlet of the waste gas channel is arranged at the bottom end of the inner edge of the guide vane fixing plate;
the seawater desalination tank comprises a distillation tank bottom groove, and the distillation tank bottom groove is provided with a strong brine outlet and a seawater inlet;
the rotating shaft of the wind turbine is coincided with the center of the pre-rotation heat exchange system, and the design can push the wind turbine to rotate to the maximum extent when hot air flow in the heat collection shed rotates and rises, so that the output power is improved.
Specifically, the guide vane fixing plate comprises 2 guide vane fixing pieces, concave-convex structures are arranged on the surfaces of the guide vane fixing pieces, and the concave-convex structures on the surfaces of the 2 guide vane fixing pieces are matched with each other to form (formed by pressing) an exhaust gas channel inside the guide vane fixing plate;
specifically, the waste gas passageway is snakelike passageway, can effectively increase heat transfer area, improves heat exchange efficiency.
Specifically, the air outlet of the waste gas channel is provided with a nozzle, so that the speed of waste gas spraying can be increased, the speed of mixed air flow is further increased, and the output power of the wind turbine is increased.
Specifically, the bottom of the center of the heat collecting shed is provided with the sand-stone heat storage layer, so that the heat storage capacity of the heat collecting shed can be further improved.
Specifically, the supports are provided with a plurality of groups, the plurality of groups of supports are arranged along the bottom groove of the distillation tank in the radial direction, the top ends of two adjacent groups of supports are used for mounting glass partition plates, fresh water collecting grooves are formed in the tops of the plurality of groups of supports, the plurality of fresh water collecting grooves are communicated through drainage grooves, and the drainage grooves are provided with fresh water outlets;
specifically, a gas pipe is arranged at a gas inlet of the flow equalizing pipe and is communicated with a high-temperature waste gas source, and an induced draft fan is arranged in the gas pipe;
specifically, the air inlets of the exhaust gas channels are located on the same plane, and the air outlets of the exhaust gas channels are located on the same plane.
Optionally, the cross section of the exhaust gas channel is circular, oval, square or rectangular; the flow equalizing pipe is a circular ring-shaped circular pipe.
Specifically, the windproof cylinder is a vertical hollow cylinder, and the bottom end of the windproof cylinder is in transitional communication with an opening at the top of the heat collecting shed through a retractable arc.
Compared with the prior art, the invention has the beneficial effects that: (1) according to the invention, the pre-rotation heat exchange system (guide vane fixing plate) is arranged at the center of the bottom of the heat collecting shed, so that the airflow flowing into the heat collecting shed from the air inlet channel at the bottom of the heat collecting shed has a certain tangential speed, namely, the rotation of the airflow at the bottom of the heat collecting shed is realized, and the hot airflow in the heat collecting shed can rotate and rise; meanwhile, a waste gas channel is arranged in the guide vane fixing plate, hot air flow in the heat collecting shed is heated by high-temperature waste gas, the high-temperature waste gas is sprayed out through a nozzle at the outlet of the waste gas channel and rotates and rises together with the hot air flow in the heat collecting shed, and the rising speed of the mixed hot air flow is increased, so that a stronger negative pressure area is formed in the center (namely a spiral surface) of the bottom of the heat collecting shed, the convergence of air around the heat collecting shed from an air inlet channel to the spiral surface is accelerated, a stable vortex flow field is formed in the heat collecting shed, a power source is continuously provided for the wind turbine, and the power generation efficiency and the output power of the wind turbine are improved; (2) the invention utilizes the high-temperature waste gas to heat the hot air flow in the heat collecting shed, namely, the rotation is assisted, the heat contained in the high-temperature waste gas is fully utilized, and the heat pollution of the industrial waste gas is reduced; (3) the pre-rotation heat exchange system is adopted to replace the traditional solid high-rise chimney, and the cost for obtaining electric power and fresh water by using solar energy is effectively reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a solar power generation-seawater desalination device based on a vortex engine;
FIG. 2 is a schematic view of a partial structure of a solar power generation-seawater desalination device based on a vortex engine according to the present invention;
FIG. 3 is a schematic diagram of a top view of a seawater desalination tank according to the present invention;
FIG. 4 is a schematic structural diagram of a pre-rotation heat exchange system inside a heat collecting shed according to the present invention;
FIG. 5 is a schematic top view of a pre-rotational heat exchange system according to the present invention;
FIG. 6 is a schematic structural view of a stator plate of the present invention;
in the figure: 1. a heat collecting shed; 2. a seawater desalination pool; 3. a pre-rotation heat exchange system; 4. a windbreak barrel; 5. a wind turbine; 6. a transparent cover plate; 7. a glass separator; 8. an air intake passage; 9. a support; 10. a fresh water collecting tank; 11. a flow equalizing pipe; 12. a guide vane fixing plate; 13. an exhaust gas passage; 14. an air inlet; 15. an air outlet; 16. a guide vane fixing piece; 17. a relief structure; 18. a sandstone heat storage layer; 19. a drainage groove; 20. a gas delivery pipe; 21. an induced draft fan; 22. a bottom groove of the distillation pool; 23. a strong brine outlet; 24. a seawater inlet; 25. and a fresh water outlet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present patent, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present patent and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present patent.
As shown in fig. 1 to 6, the present embodiment provides a solar power generation-seawater desalination apparatus based on a vortex engine, which includes a seawater desalination tank 2, a heat collection shed 1 located above the seawater desalination tank 2, a pre-rotation heat exchange system 3 located between the seawater desalination tank 2 and the heat collection shed 1, a wind-proof cylinder 4 located above the heat collection shed 1, and a wind turbine 5 located inside the wind-proof cylinder 4;
the heat collecting shed 1 comprises a transparent cover plate 6 and a glass partition plate 7, the transparent cover plate 6 is of a conical structure, an opening is formed in the conical top of the transparent cover plate 6, the bottom of the windproof cylinder 4 is communicated with the opening in the top of the transparent cover plate 6, and an air inlet channel 8 is formed between the transparent cover plate 6 and the seawater desalination pool 2 (external air is gathered from the periphery of the bottom of the transparent cover plate 6 to the center); the glass partition plate 7 is obliquely arranged between the seawater desalination tank 2 and the transparent cover plate 6 through a support 9, and a fresh water collecting tank 10 is arranged at the top end of the support 9;
the pre-rotation heat exchange system 3 comprises a flow equalizing pipe 11 and a plurality of guide vane fixing plates 12, the guide vane fixing plates 12 are uniformly arranged along the central circumferential direction of the seawater desalination pool 2, gaps and included angles are arranged between every two adjacent guide vane fixing plates 12 (due to the design, when air around the heat collecting shed 1 is gathered towards the center of the bottom of the heat collecting shed 1, certain tangential speed is achieved, namely, the air has a rotation effect on the air inside the heat collecting shed 1), and the angle range between every two adjacent guide vane fixing plates 12 is 0-90 degrees; an exhaust gas channel 13 is arranged in the guide vane fixing plate 12, and an air inlet 14 of the exhaust gas channel 13 is communicated with the flow equalizing pipe 11; in order to fully utilize the buoyancy lift force of the high-temperature waste gas ejected by the waste gas channel 13, the path of the waste gas channel 13 is preferably in an upward-in-downward-out mode, that is, the gas inlet 14 of the waste gas channel 13 is arranged at the top end of the outer edge of the guide vane fixing plate 12, and the gas outlet 15 of the waste gas channel 13 is arranged at the bottom end of the inner edge of the guide vane fixing plate 12;
the seawater desalination tank 2 comprises a distillation tank bottom groove 22, and the distillation tank bottom groove 22 is provided with a strong brine outlet 23 and a seawater inlet 24;
the rotating shaft of the wind turbine 5 is coincided with the center of the pre-rotation heat exchange system 3, and the design can enable the wind turbine 5 to be pushed to rotate to the maximum extent when the hot air flow in the heat collection shed 1 rotates and rises, so that the output power is improved.
Specifically, the guide vane fixing plate 12 comprises 2 guide vane fixing pieces 16, concave-convex structures 17 are arranged on the surfaces of the guide vane fixing pieces 16, and the concave-convex structures 17 on the surfaces of the 2 guide vane fixing pieces 16 are matched with each other to form (press fit) the exhaust gas channel 13 inside the guide vane fixing plate 12; the structure can reduce the obstruction of the guide vane fixing plate 12 to the air flow as much as possible, except for the air inlet 14 and the air outlet 15 of the waste gas channel 13, the peripheries of the two guide vane fixing pieces 16 are compacted and sealed, and the cross section shape of the pressed channel is determined by the concave-convex shape of the single guide vane fixing piece 16; in addition, the concave-convex waveform of the outer wall surface of the guide vane fixing plate 12 can cause boundary airflow disturbance to a certain extent, and the heat exchange efficiency can be improved.
Specifically, exhaust gas passageway 13 is snakelike passageway (snakelike whole waste gas circulation passageway that indicates), can effectively increase heat transfer area, improves heat exchange efficiency.
Specifically, the outlet 15 of the exhaust gas channel 13 is provided with a nozzle, which can increase the speed of the exhaust gas when the exhaust gas is sprayed out, further increase the speed of the mixed gas flow, and thus increase the output power of the wind turbine 5. In order to reduce the resistance to the air flow in the heat collecting shed 1, the waste gas exchanges heat with the air flow in the heat collecting shed 1 through the outer surface of the waste gas channel 13 in the process of flowing through the heat exchange system, and the waste gas flows along the inner wall surface of the guide vane fixing plate 12 under the constraint of the waste gas channel 13 and is finally sprayed out from the nozzle along the tangential direction of the waste gas outlet 15.
Specifically, the sandstone heat storage layer 18 is arranged at the bottom of the center of the heat collecting shed 1, so that the heat storage capacity of the heat collecting shed 1 can be further improved.
Specifically, a plurality of groups of supports 9 are arranged, the plurality of groups of supports 9 are arranged along the radial direction of the bottom groove 22 of the distillation tank, the top ends of two adjacent groups of supports 9 are used for mounting the glass partition plate 7, fresh water collecting grooves 10 are arranged at the top ends of the plurality of groups of supports 9, the plurality of fresh water collecting grooves 10 are communicated through a drainage groove 19, and the drainage groove 19 is provided with a fresh water outlet 25;
specifically, an air inlet 14 of the flow equalizing pipe 11 is provided with an air conveying pipe 20, the air conveying pipe 20 is communicated with a high-temperature waste gas source, and an induced draft fan 21 is arranged in the air conveying pipe 20; under the action of the induced draft fan 21 and the gas pipe 20, the industrial waste gas is introduced into the waste gas flow equalizing pipe 11, and the waste gas flow equalizing pipe 11 can uniformly distribute the gas flow, so that the waste gas flows into the waste gas channel 13 in each guide vane fixing plate 12 uniformly through each connecting branch pipe uniformly distributed at the same speed.
Specifically, the air inlets 14 of the exhaust gas channels 13 are located on the same plane, and the air outlets 15 of the exhaust gas channels 13 are located on the same plane, so that the flowing effect of the exhaust gas flow can be enhanced.
Optionally, the cross section of the exhaust gas channel 13 is circular, oval, square or rectangular; the flow equalizing pipe 11 is a circular ring-shaped circular pipe.
Specifically, the windproof cylinder 4 is a vertical hollow cylinder, and the bottom end of the windproof cylinder is in transitional communication with the opening at the top of the heat collecting shed 1 through a retractable arc.
The working process and the principle of the solar power generation-seawater desalination device based on the vortex engine are as follows:
solar power generation principle: the heat collecting shed 1 and the seawater desalination tank 2 collect solar heat and store the solar heat in the seawater and sand heat accumulation layer 18, and air in the heat collecting shed 1 flows upwards under the action of buoyancy after being heated by the seawater and sand heat accumulation layer 18; meanwhile, the flow equalizing pipe 11 sucks a large amount of high-temperature waste gas through the induced draft fan 21 in the gas pipe 20, the high-temperature waste gas is mixed with hot air flow in the heat collecting shed 1 through the waste gas channel 13, and when the mixed hot air flow passes through a flow channel guided by the guide vane fixing plate 12, the mixed hot air flow has a tangential velocity component under the constraint of the outer wall of the guide vane fixing plate 12, so that rotary rising air flow is generated at the bottom (a spiral surface) of the heat collecting shed 1; meanwhile, the mixed hot air flow exchanges heat with high-temperature waste gas flowing through the waste gas channel 13 in the guide vane fixing plate 12, so that the temperature of the hot air flow is further increased, and the rising speed of the air flow is increased; in addition, high-temperature waste gas circulating inside the flow equalizing pipe 11 can also have a certain heating effect on the air flow around the flow equalizing pipe 11, and the pre-rotation heat exchange system 3 heats and rotates the air flow in the heat collecting shed 1 to form a strong cyclone column; meanwhile, the high-temperature waste gas in the waste gas channel 13 has a certain tangential velocity component (in the tangential direction of an arc line at the air outlet 15 at the bottom end of the guide vane fixing plate 12) under the guidance of the waste gas channel 13, and is sprayed out from a nozzle of the air outlet 15 to generate a rotary pre-swirl ascending air flow; in the process of rotating and rising, the air flow in the heat collecting shed 1 can generate a negative pressure area at the center of the heat collecting shed 1, so that the convergence of the air around the heat collecting shed 1 to the center of the bottom of the heat collecting shed 1 through the air inlet channel 8 is accelerated. The cyclone column in the heat collecting shed 1 passes through the wind turbine 5 in the wind-proof cylinder 4 in the rotating and rising process, and pushes the wind turbine 5 to rotate, so that the power generation is realized. The opening at the top of the heat collecting shed 1 is in transition communication with the wind-proof cylinder 4 by adopting a contraction circular arc, and the design can increase the air flow speed, reduce the gradient of the air flow speed, generate a Venturi effect, improve the negative pressure and be beneficial to improving the output power of the wind turbine 5.
The principle of seawater desalination: seawater in a distillation tank bottom groove 22 of the seawater desalination tank 2 absorbs main solar radiation, vapor evaporated by heating seawater meets the lower surface of a glass partition plate 7 in the rising process and is condensed into water drops, the water drops flow into fresh water collecting tanks 10 along the glass partition plate 7 under the action of gravity due to certain inclination angles of the glass partition plate 7, and fresh water collected by the fresh water collecting tanks 10 flows out from a fresh water outlet 25 after being collected by a drainage groove 19; strong brine at the bottom of the bottom groove 22 of the distillation pool is discharged through a strong brine outlet 23; fresh seawater flows into the distillation pool bottom tank 22 from a seawater inlet 24; thereby realizing the desalination of seawater.
According to the invention, a stronger and stable negative pressure area is generated at the center of the bottom of the heat collecting shed 1 through the pre-rotation heat exchange system 3, and a traditional solid high chimney is replaced by a stronger and stable vortex negative pressure flow field, so that the construction difficulty and risk are reduced, and the cost for obtaining electric power and fresh water by using solar energy is reduced; and the waste heat of the industrial waste gas is effectively recycled and utilized, the waste gas is cooled, the thermal pollution of the industrial waste gas is reduced, and the method has the characteristic of environmental friendliness.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A solar power generation-seawater desalination device based on a vortex engine is characterized by comprising a seawater desalination pool, a heat collection shed positioned above the seawater desalination pool, a pre-rotation heat exchange system positioned between the seawater desalination pool and the heat collection shed, a wind-proof cylinder positioned above the heat collection shed and a wind turbine positioned inside the wind-proof cylinder;
the heat collecting shed comprises a transparent cover plate and a glass partition plate, the transparent cover plate is of a conical structure, an opening is formed in the conical top of the transparent cover plate, the bottom of the windproof cylinder is in transitional communication with the opening in the top of the transparent cover plate through a retractable arc, and an air inlet channel is formed between the transparent cover plate and the seawater desalination pool; the glass partition plate is obliquely arranged between the seawater desalination tank and the transparent cover plate through a bracket, and a fresh water collecting tank is arranged at the top of the bracket;
the bracket is provided with a plurality of groups, the plurality of groups of brackets are arranged along the radial direction of the bottom groove of the distillation tank, the top ends of two adjacent groups of brackets are used for mounting glass clapboards, fresh water collecting grooves are arranged at the tops of the plurality of groups of brackets and are communicated through drainage grooves, and the drainage grooves are provided with fresh water outlets;
the pre-rotation heat exchange system comprises a flow equalizing pipe and a plurality of guide vane fixing plates, the guide vane fixing plates are uniformly arranged along the center of the seawater desalination tank in the circumferential direction, and gaps and included angles are formed between every two adjacent guide vane fixing plates; an exhaust gas channel is arranged in the guide vane fixing plate, and an air inlet of the exhaust gas channel is communicated with the flow equalizing pipe; the air inlet of the waste gas channel is arranged at the top end of the outer edge of the guide vane fixing plate, and the air outlet of the waste gas channel is arranged at the bottom end of the inner edge of the guide vane fixing plate;
the seawater desalination tank comprises a distillation tank bottom groove, and the distillation tank bottom groove is provided with a strong brine outlet and a seawater inlet;
the rotating shaft of the wind turbine is coincided with the center of the pre-rotation heat exchange system.
2. The solar power generation-seawater desalination device based on the vortex engine as claimed in claim 1, wherein the guide vane fixing plate comprises 2 guide vane fixing pieces, concave-convex structures are arranged on the surfaces of the guide vane fixing pieces, and the concave-convex structures on the surfaces of the 2 guide vane fixing pieces are matched with each other to form an exhaust gas channel inside the guide vane fixing plate.
3. The vortex engine based solar power-seawater desalination plant of claim 1, wherein the exhaust gas channel is a serpentine channel.
4. The vortex engine based solar power-seawater desalination plant of claim 1, wherein the exhaust channel is provided with a nozzle at the outlet.
5. The solar power-seawater desalination device based on the vortex engine as claimed in claim 1, wherein the bottom of the center of the heat collection shed is provided with a sand-stone heat storage layer.
6. The solar power generation-seawater desalination device based on the vortex engine as claimed in claim 1, wherein the air inlet of the flow equalizing pipe is provided with an air pipe, the air pipe is communicated with a high-temperature waste gas source, and an induced draft fan is arranged in the air pipe.
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Publication number Priority date Publication date Assignee Title
CN101358578A (en) * 2008-08-05 2009-02-04 河海大学 A device that utilizes solar energy for chimney power generation and seawater desalination
CN110849177A (en) * 2019-11-27 2020-02-28 河海大学 A heat exchanger system for generating and intensifying negative pressure

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Publication number Priority date Publication date Assignee Title
CN101358578A (en) * 2008-08-05 2009-02-04 河海大学 A device that utilizes solar energy for chimney power generation and seawater desalination
CN110849177A (en) * 2019-11-27 2020-02-28 河海大学 A heat exchanger system for generating and intensifying negative pressure

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