CN115717418A

CN115717418A - Artificial precipitation power generation method and system

Info

Publication number: CN115717418A
Application number: CN202211366986.5A
Authority: CN
Inventors: 陈明发
Original assignee: Hainan Yuetu Technology Holding Co ltd
Current assignee: Hainan Yuetu Technology Holding Co ltd
Priority date: 2021-11-06
Filing date: 2022-11-03
Publication date: 2023-02-28
Also published as: CN114014399B; CN218262034U; CN116411614A; CN115520925A; CN114014399A

Abstract

The invention provides a method and a system for generating electricity by artificial precipitation, which adopt water vapor contained in air at high altitude at seaside as a water source; pumping and circulating the ice-cold seawater at a deep layer below the sea surface through a closed circulating water path formed by communicating a water inlet pipe, a circulating water pump, a heat exchanger or an evaporator at a high-altitude position and a water outlet pipe; making the cold seawater flow through a heat exchanger or an evaporator, and transferring the cold energy contained in the cold seawater to the evaporator; the high altitude air is guided to an evaporator for cooling, so that the water vapor contained in the high altitude air is condensed into fresh water, namely artificial precipitation; collecting and storing the artificial precipitation in a high-altitude reservoir; the artificial precipitation stored in the high-altitude reservoir flows through the hydraulic generator so as to convert the potential energy of water into electric energy and output the electric energy. The invention realizes artificial precipitation and water storage power generation with almost zero energy consumption.

Description

Artificial precipitation power generation method and system

Technical Field

The invention belongs to the technical field of artificial precipitation power generation, and particularly relates to a method and a system for preparing fresh water and storing water to generate power by using seawater, namely an artificial precipitation power generation method and a system.

Background

The patent document of the invention discloses an air water generator (CN 101929179B), which comprises a raw water storage tank, an air compressor refrigeration dehumidifying system, a raw water purification system and a purified water storage tank; the refrigeration dehumidifying system is used for cooling moisture in the air into liquid water drops, and the water drops naturally drop into the raw water storage tank; the raw water purification system is used for storing purified water flowing into the raw water storage tank. CN102997493B relates to more than 240 Chinese patent documents relating to the preparation of fresh water from seawater, and the documents are prepared into fresh water by depending on commercial energy sources such as electric power and the like, so that the energy consumption is very high and the fresh water is not paid. At present, air compressors are used for manufacturing cold sources for commercial air water generators, electricity is consumed for refrigeration, so that the water generation cost is very high, for example, a commercial F20 household air water generator is used, the water generation power is 400w, 20L of water can be generated in 24 hours, and the electricity consumption is about 288 yuan/ton. Therefore, the existing air water production has the water production cost which is too high for civil use and too high for agricultural irrigation.

Chinese patent No. CN104261499B discloses a seawater temperature difference energy natural circulation seawater desalination device and desalination method, the vacuum pump of which needs to consume commodity electric energy, the evaporation capacity of which is limited by the size of the light-gathering cover and the weather change, and seawater can not be desalinated in rainy days and nights without sunshine. The chinese patent application discloses a system and method for producing a water source by using deep sea low temperature water condensation (CN 109867401A), but the application uses a wind power complementary power supply system as a power source, and the energy consumption is very high. The 'research progress on sea water desalination by ocean energy' in the 006 th stage of 2017 in solar energy journal discloses a method for sea water desalination by utilizing ocean energy in different forms, but the method is a multi-effect seawater distillation desalination device driven by solar energy and tidal energy, and has the advantages of large investment, high energy consumption and low water production efficiency.

Zilu net/lightning news was reported 8 months and 17 days 2020: the cost of seawater desalination is reduced to 1 dollar per ton internationally, and the cost of seawater desalination is gradually reduced to the international level in China; with the emergence of new processes, new materials and new equipment, the cost is expected to be further reduced. The hot method distillation process is used for extracting fresh water, equipment investment of 0.55-0.8 ten thousand yuan is required for each ton of water, water production cost is 4-8 yuan, power consumption of 3.53 ℃ is required for each ton of water evaporation, more than 3 yuan of electricity is required to be paid, and more than 1 yuan of depreciation cost is required.

At the present stage, the seawater desalination method comprises the steps of heating seawater in a vacuum environment to evaporate the seawater, and extracting fresh water by a distillation method; and the other is to use reverse osmosis method, namely to drive the pressurized seawater to pass through the ion-sealed membrane. The number of people who rely on desalinated seawater to meet daily life demands exceeds 3 hundred million people at the present stage of the world, and the development of a seawater desalination technology has a lot of assistance in relieving the problem of water resource shortage in partial areas, but the fact has to be acknowledged is that compared with the process of directly obtaining drinking water from a local water supply system, the consumed energy in the process of desalinating seawater to generate fresh water is more than ten times higher than that in the former process. In summary, the process of desalinating seawater is still expensive, and the main reason is that the energy consumption for evaporating seawater is high.

Disclosure of Invention

One of the objects of the present invention: provides an artificial precipitation power generation method to reduce the seawater desalination cost and energy consumption and promote carbon neutralization to be achieved as soon as possible.

The second purpose of the invention is: provides an artificial precipitation power generation system to reduce the seawater desalination cost and energy consumption and promote carbon neutralization to be achieved as soon as possible.

An artificial precipitation power generation method is characterized by comprising the following steps:

(1) adopting water vapor contained in the air at high sea level as a water source; people in coastal areas have the experience that air blown from the sea surface is very humid; the meteorological data also shows: in the coastal areas of the temperate zone, the water vapor content in the high-altitude air at seaside is higher, and the average water vapor content in the high-altitude air at seaside is 13.7-17.1g/m at 20 ℃ on sunny days ³ The relative humidity is 85-100%;

(2) pumping and circulating the ice-cold seawater at a deep layer below the sea surface through a closed circulating water path formed by communicating a water inlet pipe, a circulating water pump, a heat exchanger or an evaporator at a high-altitude position and a water outlet pipe; the ice-cold seawater flows through a heat exchanger or an evaporator, and the cold energy (or cold source) contained in the ice-cold seawater is transmitted to the evaporator; weather data display: the average water temperature of the sea surface is 17.4 ℃, the daily change influence depth of the sea water temperature is less than 30 meters, a constant temperature layer is arranged at the position of the water depth of about 350 meters, the water temperature is rapidly reduced along with the increase of the depth, the water temperature at the position 1000 meters below the sea surface is 4-5 ℃, the water temperature at the position 2000 meters is 2-3 ℃, and the water temperature at the position 3000 meters is 1-2 ℃;

(3) the high-altitude air is guided to an evaporator above the sea surface for cooling, so that water vapor contained in the high-altitude air is condensed into fresh water, namely artificial precipitation; the innovative technical measures of taking natural water vapor as a desalination water source, ice-cold seawater as cold energy, wind power and other natural resources as power sources do not need artificial evaporation of seawater, and the defect of high energy consumption of extracting fresh water by a distillation method can be overcome; natural resources such as air, ice-cold seawater, wind power and the like at high altitude are inexhaustible, and are not used up, so that the air, the ice-cold seawater and the wind power are not purchased with money;

(4) collecting and storing the artificial precipitation in a high-altitude reservoir;

(5) enabling the artificial precipitation stored in the high-altitude reservoir to flow through a hydraulic generator so as to convert the potential energy of water into electric energy and output the electric energy; the generated artificial precipitation can be transferred into a water works for purification treatment, thereby becoming tap water for the residents to drink.

It is preferable to use a heat-insulating water inlet pipe to prevent the cold seawater from absorbing the heat of the gradually heated seawater through the pipe wall to become normal-temperature seawater during the pumping and rising process. The reason why the evaporator is arranged above the sea surface rather than in the sea is that if the evaporator is arranged in the deeper sea, high-altitude air must be guided into the deeper sea through the air conveying pipe, the hollow pipeline must use the ultrahigh-strength pipe to overcome the strong pressure and buoyancy of the deep sea water, and the produced fresh water still needs to consume electric power to be pumped to the ground, which is not sustainable in engineering cost, construction difficulty and energy consumption. On the contrary, the water inlet pipe deep into the sea does not suffer from the strong pressure and buoyancy of the deep sea water because the water is inside and outside the pipe.

The existing evaporator is an important part commonly used in equipment such as a dehumidifier, an air conditioner and the like, and low-temperature condensed liquid exchanges heat with external air through the evaporator to achieve the refrigerating effect. The evaporator mainly comprises coiled water pipes, is essentially a heat exchanger, uses ice-cold seawater to replace condensed liquid in the existing evaporator, absorbs heat of air at high altitude through the evaporator formed by the coiled water pipes, and cools and condenses the air at high altitude so as to separate out fresh water. The applicant has in the priority document the use of coiled water pipes for condensing air at high altitudes, which are referred to as condensers.

Preferably, in order not to consume commercial energy such as commercial power, fuel oil, gas, fire coal and the like, the artificial precipitation power generation method comprises the technical characteristics of any one or more of the following i-ix.

I, a windmill device is equipped to collect wind energy, a mechanical transmission mechanism of the windmill is used for directly driving a water pump, and ice-cold seawater at a deeper layer below the sea surface is pumped up; the reason why the windmill is preferred to directly drive the water pump is not advocated to use the windmill for generating electricity (the maximum theoretical limit of the efficiency of converting wind energy into electric energy by the windmill is 59.3 percent), and then indirectly drive the motor (the average efficiency of Chinese motors is 87.3 percent) and the water pump by using the generated electricity is that the energy efficiency of directly driving the water pump by the windmill is more than 50 percent higher than the efficiency of driving the water pump by wind power; the technical key point has very obvious beneficial effects, the water making efficiency of the invention is greatly improved, and the water making cost of the invention is greatly reduced.

And ii, sending the high-altitude air with the altitude of more than or equal to 500m or 50m or 30m into the evaporator.

And iii, constructing an air duct (also called as an air duct), and arranging the evaporator in the air duct to enable high-altitude air to blow the evaporator through the air duct, so that the high-altitude air is condensed to separate out fresh water. Preferably, dry and cool air cooled by the evaporator and separated from fresh water is supplied as cool air to a nearby building.

Iv, building a reservoir at the sea, and siphoning the ice-cold seawater at a deeper layer below the sea surface to the reservoir with the reservoir surface lower than the sea surface through a water inlet pipe, an evaporator or a heat exchanger and a water outlet pipe for storage when the tide rises; or, when the tide is ebb, the ice-cold seawater stored in the reservoir is siphoned to the sea below the reservoir surface through the water inlet pipe, the evaporator or the heat exchanger and the water outlet pipe; or when the tide rises, the ice-cold seawater at the deeper layer below the sea surface directly gushes into a reservoir with the reservoir surface lower than the sea surface through a water inlet pipe for storage; the technical measure of completely utilizing natural force and natural cold energy to cool the evaporator can finish fresh water preparation with nearly zero energy consumption, thereby greatly reducing the water preparation cost of the invention.

Because the pumped ice-cold seawater is bound to contain some animals and plants such as small sea snail and small seaweeds, silt and pollutants, in order to avoid blocking the tiny pipelines of the evaporator, it is preferable to exchange cold energy to a circulating liquid such as low-temperature heat transfer oil through a heat exchanger which is easy to clean, and then indirectly transfer the cold energy to the evaporator through the circulating liquid.

V, preferably providing a bell mouth wind collecting device, wherein the bell mouth is arranged facing the wind, so that high-altitude air (with wind energy) is naturally blown in from the bell mouth and is guided to the evaporator; certainly, in order to save the investment of fixed assets and the energy consumption of the fan, the evaporator can also be installed in the open air, so that the high-altitude air naturally blows the evaporator; the technical measure of completely utilizing natural wind and natural cold energy can finish the fresh water preparation with nearly zero energy consumption, thereby greatly reducing the water preparation cost of the invention.

Vi, according to the temperature of the seawater in different regions, selecting different pumping depths, and if the conditions allow, extracting the ice-cold seawater below 500m of the sea surface as much as possible to ensure the temperature T of the ice-cold seawater when the ice-cold seawater is fed into the evaporator ₁ 16 ℃ or 12 ℃ or 8 ℃ or 4 ℃ or less, in short, the lower the temperature of the pumped ice-cold seawater, the better. The temperature of the seawater will vary with the solar radiation and will generally not vary more than 0.4 c per day. The daily temperature change of the surface layer of the seawater is large and can reach more than 3-4 ℃. Daily changes in the surface temperature of the seawater will be conducted through the seawater to deeper levels of seawater, but the maximum depth of conduction does not exceed 50 meters. Therefore, it is preferable to extract ice-cold sea water below 30m, or 60m, or 80m, or 300m, or 500m, or 1000m from the sea surface.

Vii, selecting the regions with the high altitude air and the ice-cold seawater to construct an artificial precipitation power generation system, and ensuring the temperature T of the high altitude air ₂ The temperature T of the cold seawater when it is fed into the evaporator (when it is not fed into the evaporator) ₁ The difference is more than or equal to 5 ℃ or 10 ℃ or 15 ℃ or 20 ℃, namely T ₂ -T ₁ At more than or equal to 5 ℃ or 10 ℃ or 15 ℃ or 20 ℃; the relative humidity of the air at high altitude is ensured to be more than or equal to 70 percent.

Viii, a water inlet is arranged at the upstream of the ice-cold ocean current, and a water outlet is arranged at the downstream of the ice-cold ocean current; the cold ocean current automatically flows from upstream into the water inlet pipe, through the heat exchanger or/and the evaporator, and out of the water outlet pipe to downstream of the cold ocean current. In this way, the cold energy carried by the cold seawater can be transmitted to the heat exchanger or/and the evaporator without consuming any other energy sources, so as to condense and separate out fresh water.

Ocean currents are large-scale, non-periodic movements of the ocean's deep ocean currents from one ocean location to another, with average ocean currents ranging from 800 meters to 1000 meters in depth. In recent years, scientists have discovered important ocean currents in the oceans around the world, like new guinea coastal currents, the old cotton currents, etc.

Ix, providing a solar power apparatus for driving a water pump or/and blower with the generated electricity; the cold sea water in the deep layer below sea surface is pumped upwards, and the high-altitude air is blown to the evaporator by a fan.

Preferably, the method of generating electricity by artificial precipitation comprises the features in any one or more of (1) to (r) below.

(1) The sea, the water inlet pipe or/and the water pump, the evaporator or the heat exchanger (above sea level) and the water outlet pipe are communicated to form a circulating waterway; the cold sea water flows into the water inlet pipe from the deep layer below the sea surface, flows through the evaporator or the heat exchanger, flows through the water outlet pipe with the water outlet lower than the sea surface, and then flows back to the sea or flows into the reservoir. The water outlet is 10m or 5m or 1m or 0.1m lower than the sea surface, because the lift of the circulating waterway is zero, the ice-cold seawater can be driven by very small power to flow through the evaporator, thereby achieving the technical effect of low energy consumption and even zero energy consumption. On the contrary, if the water outlet is not located high enough to expose the sea surface, and the water outlet is exposed to the air, the air may flow into the water pipe to increase the power loss of the water pump, so a large lift is required, for example, the water outlet is 30 meters higher than the sea surface, the water pump for ice-cold sea needs to be completely dependent on the water pump to be 30 meters higher, and thus 1000kg × 30m =294 kilojoules per ton of ice-cold sea water is consumed.

(2) The fan or/and the water pump are/is provided with a motor, so that the fan or the water pump is driven by electric power in an auxiliary mode when wind power is insufficient.

(3) Providing a humidifier (preferably an ultrasonic humidifier) for further humidifying the high altitude air to be condensed (e.g., to be introduced into the air duct) (i.e., for pre-humidifying the high altitude air introduced to the evaporator) to reach a saturated humidity, so as to improve the efficiency of high altitude air nodule and increase the efficiency and yield of condensed and separated fresh water; or/and a dust raising device is configured to raise dust in the air at high altitude so as to improve the air nodule efficiency at high altitude and increase the efficiency and yield of condensing and separating out fresh water. The study showed that: the mist produced by the ultrasonic humidifier has a catalytic effect, can generate 1-5 micron ultrafine particles, and can catalyze high-altitude air to be tubercled on the ultrafine particles, so that the tubercular efficiency is improved, and the yield of precipitated fresh water is increased; the electric heating humidifier has the advantages of high humidifying strength, high humidifying efficiency, energy and electricity conservation, low cost and high water outlet efficiency, and the power consumption is only 1/10 to 1/15 of that of the electric heating humidifier. Studies have also shown that: the loess dust raised by the dust raising device can catalyze high-altitude air to be tubercled on the dust, so that the tuberculosis efficiency can be improved, the yield of separated fresh water can be increased, and the loess dust can be recycled after being precipitated and dried in the sun from the fresh water and cannot pollute the fresh water.

(4) The evaporator or heat exchanger is connected in parallel with a bypass water pipe for discharging the redundant (i.e. the evaporator is not used) ice-cold seawater to a reservoir for storage for use in windless, wave-less and tide-less times.

(5) A layer of heat preservation floating ball is arranged on the water surface of the reservoir and used for shielding sunlight and avoiding the stored ice-cold seawater from absorbing heat too fast to raise the temperature.

(6) The water outlet is 10m or 5m or 1m or 0.1m lower than the sea surface. Therefore, the circulating water path approaches the siphon effect, and the ice-cold seawater can be driven by very small power to flow through the evaporator, thereby achieving the technical effect of low energy consumption and even zero energy consumption.

(7) A water inlet pipe, a water pipe windlass, a water pump, an evaporator or a heat exchanger and a water outlet pipe which can be folded and unfolded are arranged on the ship; the cold sea water is pumped into the water inlet pipe from the deep layer below sea surface, flows through the evaporator or the heat exchanger and the water outlet pipe and flows back to the sea.

(8) The circulating liquid is delivered to the central air conditioner through the cold delivery pipe to generate cold air for being supplied to nearby buildings.

(9) The dry and cold air cooled by the evaporator and separated out fresh water is used as cold air to be supplied to nearby buildings, such as coastal residential areas and coastal hotels.

The ratio of density of water inlet pipe at R to that of sea water is 0.8-1.2. Therefore, the water inlet pipe can be taken out and put into the deep sea water by using smaller power and energy by virtue of buoyancy, so that the offshore operation is facilitated.

Preferably, the artificial precipitation power generation method is characterized in that: exchanging cold energy obtained from the cold sea water with fresh water by a heat exchanger to cool the fresh water to low temperature fresh water below 17 deg.C (preferably below 10 deg.C); the low-temperature fresh water is sprayed/sprinkled/dripped/sprinkled into (preferably higher than 26 ℃) high-altitude air, and the high-altitude air is cooled down in a manner that the low-temperature fresh water is directly and fully contacted with the high-altitude air in a large area, so that the fresh water is condensed and separated out. The test shows that: compared with the condensation water separation by adopting the mode that the low-temperature fresh water is directly contacted with the high-altitude air, the condensation water separation has higher water separation rate (namely, the condensation water separation by adopting the mode that the low-temperature fresh water is directly contacted with the high-altitude air) and is more energy-saving, the investment of an evaporator is not needed, and only the investment of components such as a spray head/a shower head/a drip nozzle/a shower head with low cost is needed.

Preferably, the artificial precipitation power generation method is characterized in that: the heat exchanger or/and the evaporator are installed at a location with an altitude less than 10 meters (even below sea level) (since the highest point of siphoning should not exceed 10 meters, otherwise it is difficult to operate and the piping costs and energy consumption are high per start); alternatively, a multi-stage heat exchanger is provided to exchange cold energy to an evaporator at a high altitude location (e.g., on a mountain).

Preferably, the artificial precipitation power generation method is characterized in that: the evaporator is installed close to the air pump, the air pump is blown by flowing high-altitude air (i.e. sea wind), then the air pump is used for driving ice-cold sea water or circulating liquid to flow through the evaporator, and the evaporator is blown by flowing high-altitude air (e.g. the same sea wind) to cool the high-altitude air and separate out fresh water. The air pump can be a pump which is provided with fan blades and driven by wind power, the evaporator and the air pump form a wind power evaporator, and the air pump drives ice-cold seawater or circulating liquid to flow through the evaporator. Therefore, the land and wind energy can be effectively utilized, and the evaporator and the wind pump share the same land and share the same wind source.

Preferably, the artificial precipitation power generation method is characterized in that: the water inlet pipe, the water pump, the heat exchanger and the water outlet pipe are arranged at a low-lying position lower than the sea surface; the water inlet pipe, the water pump, the heat exchanger and the water outlet pipe are always filled with cold seawater.

An artificial precipitation power generation system, characterized in that it comprises: the system comprises a hydraulic generator, a high-altitude reservoir, sea, high-altitude air, ice-cold seawater, a water inlet pipe or/and a water pump, a heat exchanger or an evaporator at a high-altitude position and a water outlet pipe; wherein, the sea, the water inlet pipe or/and the water pump, the evaporator or the heat exchanger and the water outlet pipe are communicated to form a circulating water path; the ice-cold seawater flows into the water inlet pipe from the deeper layer below the sea surface, flows through the evaporator or the heat exchanger and the water outlet pipe, and then flows back to the sea; fresh water condensed from the high-altitude air is collected and stored in the high-altitude reservoir; the artificial precipitation stored in the high-altitude reservoir flows through the hydraulic generator, and the potential energy of the water is converted into electric energy and output.

Preferably, the artificial precipitation power generation system comprises the features of any one or more of the combinations of i-ix.

I, a windmill device is equipped to collect wind energy, and a water pump is driven by a windmill (preferably, a mechanical transmission mechanism directly) to pump the cold seawater at a deep layer below the sea surface.

And ii, the altitude of the evaporator position is more than or equal to 500m or 50m or 30m.

And iii, constructing an air duct (also called as an air duct), and arranging the evaporator in the air duct, so that the high-altitude air passes through the air duct to blow the evaporator, and then condensing to separate out fresh water. Preferably, dry and cool air cooled by the evaporator to separate fresh water is supplied as cool air to a nearby building.

Iv, a reservoir is built at the sea, and when the tide rises, the ice-cold seawater at the deeper layer below the sea surface is siphoned to the reservoir with low water level through a water inlet pipe, an evaporator or a heat exchanger and a water outlet pipe for storage; or, the ice-cold seawater stored in the reservoir is siphoned to the low-water-level sea through the water inlet pipe, the evaporator or the heat exchanger and the water outlet pipe during the ebb tide; or, in the flood tide, the ice-cold seawater at the deep layer under the sea surface directly gushes into (without U-shaped pipe siphon) the reservoir through the water inlet pipe (such as a straight pipe) and is stored in the reservoir with the reservoir surface lower than the sea surface.

V, preferably, a bell mouth wind collecting device is provided, and the bell mouth is arranged to face the wind, so that high-altitude air (with wind energy) is naturally blown in from the bell mouth and is guided to the evaporator.

Vi, the temperature of the ice-cold seawater fed into the evaporator is less than or equal to 16 ℃ or 12 ℃ or 8 ℃ or 4 ℃; extracting ice-cold seawater below 30m, 60m, 80m, 300m, 500m or 1000m from sea surface.

Temperature T of air at vii and high altitude ₂ With the temperature T of the cold seawater as it is fed into the evaporator ₁ The difference is more than or equal to 5 ℃ or 10 ℃ or 15 ℃ or 20 ℃; preferably, a place with the relative humidity of air at high altitude more than or equal to 70 percent is selected to construct a seawater desalination plant.

Viii, a water inlet is arranged at the upstream of the ice-cold ocean current, and a water outlet is arranged at the downstream of the ice-cold ocean current; the cold ocean current automatically flows from upstream into the water inlet pipe, through the heat exchanger or/and the evaporator, and out of the water outlet pipe to downstream of the cold ocean current. In this way, the cold energy carried by the cold seawater can be transmitted to the heat exchanger or/and the evaporator without consuming any other energy source, thereby condensing and separating out fresh water.

Ocean currents are large-scale, non-periodic movements of the water in the deep ocean from one ocean area to another, with average ocean currents ranging from 800 meters to 1000 meters in depth. In recent years, scientists have discovered important ocean currents in the oceans around the world, like new guinea coastal currents, the old cotton currents, etc.

Ix, equipped with a solar power unit to (indirectly) drive a water pump or/and a fan using the generated electricity; the cold sea water in the deep layer below sea surface is pumped upwards, and the high-altitude air is blown to the evaporator by a fan.

Preferably, the artificial precipitation power generation system includes the technical features of any one or more of the following (1) to (r).

(1) The sea, the water inlet pipe or/and the water pump, the evaporator or the heat exchanger and the water outlet pipe are communicated to form a circulating water path; the cold sea water flows into the water inlet pipe from the deep layer below the sea surface, flows through the evaporator or the heat exchanger, and flows back to the sea or flows into the reservoir through the water outlet pipe with the water outlet lower than the sea surface in a circulating mode.

(2) And a motor is arranged on the fan or/and the water pump, so that the fan or the water pump is driven by electric power in an auxiliary manner when wind power is insufficient.

(3) The humidifier is configured to further humidify the high-altitude air to be condensed to reach saturation humidity, so that the high-altitude air tuberculosis efficiency is improved, and the efficiency and yield of condensing and separating out fresh water are increased.

(4) The evaporator or heat exchanger is connected in parallel with a bypass water line for siphoning excess (i.e., spent) chilled seawater to a reservoir for storage.

(5) A layer of heat preservation floating ball is arranged on the water surface of the reservoir to shield sunlight and avoid the stored ice-cold seawater from being heated too fast.

(7) A water inlet pipe, a water pipe wheel, a water pump, an evaporator or a heat exchanger and a water outlet pipe which can be folded and unfolded are arranged on the ship; the cold sea water flows into the water inlet pipe from the deep layer below the sea surface, flows through the evaporator or the heat exchanger and the water outlet pipe and then flows back to the sea.

(8) The cold conveying pipe is communicated with the central air conditioner and conveys the circulating liquid to the central air conditioner so as to generate cold air for supplying to nearby buildings.

(9) The dry and cold air cooled by the evaporator and separated from fresh water is used as cold air to be supplied to nearby buildings, such as coastal residential districts and coastal hotels.

The ratio of density of water inlet pipe at R to that of sea water is 0.8-1.2. Therefore, the water inlet pipe can be taken out and put into the deep sea water with smaller power and energy by virtue of buoyancy, so that offshore operation is facilitated.

Preferably, artificial precipitation power generation system, its characterized in that: the heat exchanger or/and the evaporator are installed at a location with an altitude less than 10 meters (even below sea level) (since the highest point of siphoning should not exceed 10 meters, otherwise it is difficult to operate and the piping costs and energy consumption are high per start); alternatively, a multi-stage heat exchanger is provided to exchange cold energy to an evaporator at a high altitude location (e.g., on a mountain). In this way, very low circulating pump power losses are available to transfer cold energy to the evaporator at high altitude.

Preferably, artificial precipitation power generation system, its characterized in that: an evaporator is arranged on land which is always windy, is not more than 5 kilometers away from the seaside and has an altitude of not more than 50 m; the high-altitude air floating from the sea surface naturally blows the evaporator and naturally condenses to generate fresh water.

Preferably, artificial precipitation power generation system, its characterized in that: the evaporator is arranged at a high altitude of 300-3000m, and the produced fresh water automatically flows into a reservoir or a reservoir at a high altitude.

Preferably, artificial precipitation power generation system, its characterized in that: exchanging cold energy obtained from the ice-cold seawater with fresh water by a heat exchanger to cool the fresh water to low-temperature fresh water of less than 17 ℃ or 10 ℃; the high-altitude air is cooled by spraying/sprinkling/dripping/sprinkling low-temperature fresh water with the temperature lower than 17 ℃ or 10 ℃ into the high-altitude air (preferably higher than 26 ℃) and the like so that the low-temperature fresh water can directly and fully contact the high-altitude air in a large area, and then the fresh water is condensed and separated out. The test shows that: compared with the condensation water separation by adopting the technical mode that the low-temperature fresh water is directly contacted with the high-altitude air, the condensation water separation by adopting the technical mode that the low-temperature fresh water is directly contacted with the high-altitude air has higher water separation rate, is more energy-saving, does not need the investment of an evaporator, and only needs the investment of parts such as a spray head, a shower head, a drip nozzle, a shower and the like with very low cost.

Preferably, artificial precipitation power generation system, its characterized in that: the evaporator is mounted close to the air pump, and the air pump is blown by flowing high-altitude air (i.e., sea wind), then the air pump is used to drive the ice-cold sea water or circulating liquid to flow through the evaporator, and the evaporator is blown by flowing high-altitude air (e.g., the same strand of sea wind) to cool the high-altitude air and separate out fresh water. The air pump can be a pump which is provided with fan blades and driven by wind power, the evaporator and the air pump form a wind power evaporator, and the air pump drives ice-cold seawater or circulating liquid to flow through the evaporator. Therefore, the land and wind energy can be effectively utilized, and the evaporator and the wind pump share the same land and share the same wind source.

Preferably, artificial precipitation power generation system, its characterized in that: the water inlet pipe, the water pump, the heat exchanger and the water outlet pipe are arranged at a low-lying position lower than the sea surface; the water inlet pipe, the water pump, the heat exchanger and the water outlet pipe are always filled with cold seawater.

The high-altitude air is humid air which is formed by natural evaporation of seawater, has the relative humidity of more than or equal to 70 percent and comes from the sea.

Compared with the prior art, the invention can produce the following beneficial effects.

Firstly, because the natural water vapor which is naturally evaporated from seawater to air at high altitude is used as a fresh water source, the water source is inexhaustible and inexhaustible, the seawater is evaporated without artificial energy consumption for desalination, and therefore, the seawater desalination with almost zero energy consumption is realized, the seawater desalination energy is greatly saved, and the seawater desalination cost is greatly reduced. The average relative humidity of the Haikou city in coastal regions is highest in 2 months and lowest in 8 months, the average relative humidity is respectively 87% and 79%, and the air at high altitude is relatively large all the year round. Therefore, the method is particularly suitable for producing water in coastal areas, islands with water and electricity shortage and ships. The average relative humidity of 1-4 months in Tianjin City is 49%, and if the method is adopted to prepare water, the efficiency is relatively low.

Secondly, because the cold seawater at a deeper layer below the sea surface is extracted as cold energy, the cold energy is inexhaustible, so that the cold energy required by the evaporator is not consumed, and commercial energy such as commercial power and the like is not required to be consumed to carry out artificial refrigeration by a refrigerator. Therefore, the seawater desalination with almost zero energy consumption is realized, the energy for seawater desalination is saved, and the seawater desalination cost is reduced.

Thirdly, as the water pump is directly driven by a windmill or sea wave power device, commercial energy sources such as commercial power and the like are not required to be consumed; the energy efficiency of the windmill or sea wave directly driving the water pump by the mechanical transmission mechanism is much higher than that of the generated electrically driven water pump; therefore, the energy consumption of water production is greatly reduced, and the water production cost is greatly reduced.

In summer with damp and hot weather and strong wind, the invention can completely use natural energy and natural force such as high altitude air, sea wind, sea wave, sea tide and the like to condense the high altitude air to prepare a large amount of fresh water which is stored in a reservoir for use in the season of water shortage. Compared with the existing energy utilization mode of converting (generating) natural energy sources such as sea wind, sea waves, sea tides and ice-cold sea water into electric energy, the energy utilization mode of converting natural energy sources such as sea wind, sea waves, sea tides and ice-cold sea water into fresh water stock has higher energy efficiency ratio, and is more economical, practical and feasible.

Fifthly, because a circulating water path with zero lift is arranged or the siphon effect is utilized, the power loss of a water pump of 10-15 percent can be overcome by using very small power, and the ice-cold seawater is driven to flow through the evaporator, thereby achieving the technical effect of low energy consumption and even zero energy consumption. The friction resistance of the water pump bearing and the filler, the friction between the impeller and water during rotation, the vortex of water flow in the pump, clearance backflow, the impact of inlet and outlet water and other reasons inevitably consume 10-15% of power, so that the water pump cannot completely change input power into effective power, wherein power loss and energy consumption are inevitable. On the contrary, if the water outlet is higher than the sea surface, exposed in the air and not inserted into the sea water below the sea surface, a circulating waterway with zero lift cannot be formed, so that the siphon effect cannot be well exerted, and energy consumption is high.

Measurement and display: by adopting the scheme of the invention, the 60kw windmill can be built by investing 25 ten thousand yuan RMB at seaside with rich wind resources. 1 deep sea water inlet pipe with 12mm wall thickness, 1200mm inner diameter, 15 degrees gradient and 500m depth can be laid by investing 500 ten thousand yuan. The required corresponding evaporator investment is estimated according to 1500 ten thousand yuan, and the total investment is 2025 ten thousand yuan. The power loss of the circulating water pump is calculated according to the 2.5 m lift, and 15000 tons of ice-cold seawater with the temperature of 5 ℃ can be pumped for the evaporator in a circulating mode every hour. After the evaporator absorbs the heat of the air at high altitude to condense the air, the temperature of the cold seawater at 5 ℃ is raised to be more than 17 ℃ when the cold seawater flows out, so that a temperature difference of 12 ℃ is generated, which is equivalent to the refrigerating capacity of 209059kW per hour. Compared with the refrigerating capacity of the SSH-36L air water generator, the water yielding ratio is =36kg/24h/3.3eer multiplied by 0.3kw =1.5 kg/kw, 313 tons of water can be produced per hour, and 7512 tons of fresh water can be produced per day in a condensable way. According to the calculation, the water yield of fresh water prepared from ice-cold seawater is about 1%. Because no commodity energy consumption cost exists, only equipment depreciation cost exists, the depreciation cost is calculated by using durable equipment for 20 years, the depreciation cost of each ton of water is only 0.37 yuan, and other energy consumption costs such as electricity charge and the like do not exist. Therefore, the cost of water production of 0.37 yuan/ton is only 5-9% of the existing seawater desalination cost (4-8 yuan/ton) in China.

If a household MF-950C dehumidifier with a market selling price of 1200 yuan is taken as an example for cost analysis, the cost of the evaporator is only 260 yuan, the power is 650w, the evaporator is used in west coast regions of Haikou city, about 95 liters of condensed water can be collected every day, and the power consumption is about 15.6 ℃. If the evaporator with the cost of 260 yuan is used as the evaporator of the invention and ice-cold seawater is introduced as a cold source, no power consumption is needed, and 95 liters of fresh water can be condensed and separated out every day. The 260 yuan evaporator of the durable metal equipment has the depreciation cost of 0.37 yuan per ton of fresh water, calculated according to the depreciation of 20 years.

In another aspect, a 60kw windmill is used to directly drive the water pump, and 15000 tons of ice-cold seawater at 5 ℃ can be pumped for use by the evaporator in a circulating manner per hour according to the power loss of the circulating water pumping with the head of 2.5 meters. After the evaporator absorbs the heat of the air at high altitude to condense the air, the temperature of the effluent water is raised to over 17 ℃, and 12 ℃ of temperature difference is generated. The refrigeration capacity is equivalent to 209059kW delivered per hour, and the refrigeration energy efficiency ratio EER = Qc/W =3480. In other words, the refrigeration energy efficiency ratio of the industrial precipitation power generation system is 3480, which is 996 times of the primary refrigeration energy efficiency ratio of the existing air conditioner.

And sixthly, the ice-cold seawater is used for artificially dewatering the air at high altitude, and then the artificially dewatering flows through the hydraulic generator to generate electric energy.

In conclusion, the invention skillfully utilizes inexhaustible and inexhaustible natural resources such as high-altitude air, ice-cold seawater, wind power, sea waves, tides and the like which are not purchased with money to produce water, almost does not consume commercial energy such as commercial power except electricity required by an automatic control system and the power loss of illumination and pumping water, has low water production cost which can be used for civil use and agricultural irrigation, has the comprehensive water production cost which is only less than 10 percent of the current seawater desalination cost, has very outstanding beneficial technical effects, especially can realize zero carbon emission, and promotes carbon neutralization to be achieved early.

Drawings

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Fig. 1 is a schematic structural diagram of an artificial precipitation power generation system according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an artificial precipitation power generation system according to a second embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an artificial precipitation power generation system in a third embodiment of the invention.

Fig. 4 is a schematic structural diagram of another artificial precipitation power generation system in the first embodiment of the invention.

Fig. 5 is a schematic structural diagram of another artificial precipitation power generation system according to the first embodiment of the invention.

Fig. 6 is a schematic structural diagram of an artificial precipitation power generation system in the fourth embodiment of the invention.

FIG. 7 is a schematic diagram of a one-stage evaporator array configuration used in an embodiment of the present invention.

Fig. 8 is a schematic diagram of an evaporation tower used in embodiments of the present invention.

FIG. 9 is a schematic view of condensation and drainage of a shower head in the fifth embodiment of the present invention.

Fig. 10 is a schematic diagram of a multi-stage heat exchanger for transferring cold energy according to a sixth embodiment of the present invention.

Fig. 11 is a schematic view of an evaporator and an air pump installed close to each other in a seventh embodiment of the present invention.

Fig. 12 is a schematic structural diagram of an artificial precipitation power generation system in the eighth embodiment of the invention.

Fig. 13 is a schematic structural diagram of another artificial precipitation power generation system in the eighth embodiment of the invention.

FIG. 14 is a schematic external view of a wind power evaporator according to a seventh embodiment of the present invention.

Fig. 15 is a schematic structural diagram of an artificial precipitation power generation system in a ninth embodiment of the invention.

Fig. 16 is a schematic structural diagram of an artificial precipitation power generation system in the tenth embodiment of the invention.

Fig. 17 is a schematic structural diagram of another artificial precipitation power generation system in the tenth embodiment of the invention.

Fig. 18 is a schematic partial structure diagram of an artificial precipitation power generation system according to a first embodiment of the present invention.

The reference numbers illustrate: 1-sea surface, 2-high-altitude air, 3-water inlet pipe, 4-water outlet pipe, 5-water pump, 6-evaporator, 7-bell mouth, 8-windmill, 9-motor, 10-fan, 11-fresh water, 12-reservoir, 13-water outlet (pipe) mouth, 14-water collector, 15-reservoir (water) face, 16-reservoir, 17-bypass water pipe, 18-water valve, 19-heat insulation floating ball, 20-heat exchanger, 21-air duct, 22-air duct wall, 23-humidifier, 24-cold conveying pipe, 25-water pipe windlass, 26-ship, 27-evaporation tower, 28-coconut tree, 29-shower head, 30-low-temperature fresh water, 31-overflow mouth, 32-circulating pump, 33-air pump, 34-fan blade, 35-wind power evaporator, 36-water inlet (pipe) mouth, 37-ice-cold ocean current, 38-three-way water outlet, 39-high-altitude water reservoir, and 40-hydraulic generator.

Detailed Description

The first embodiment.

As shown in fig. 1, 5 and 18, an artificial precipitation power generation method uses ice-cold seawater at a deep layer below the sea surface 1 as cold energy, and uses water vapor contained in warm (preferably above 18 ℃) high-altitude air 2 as a fresh water source. The cold sea water at a depth below the sea surface 1 is pumped up and flows through the evaporator 6 to cool the evaporator 6. Referring to fig. 5 and 18, it is preferable that the ice-cold seawater at a deep layer below the sea surface 1 is pumped and circulated through a closed circulation water path formed by communicating an evaporation tower 27 composed of a water inlet pipe 3, a circulation water pump 5, a heat exchanger 20 or a plurality of evaporators 6 at a high altitude position, and a water outlet pipe 4; the cold seawater is made to flow through an evaporation tower 27 composed of a heat exchanger 20 or a plurality of evaporators 6 at a high altitude, and the cold energy (or a cold source) contained in the cold seawater is transferred to the evaporators 6. The warm high altitude air 2 (preferably mist) is introduced to the evaporator 6, and the evaporator 6 is used to cool the introduced warm high altitude air 2, so that the water vapor contained in the warm high altitude air 2 is condensed into fresh water 11, artificial precipitation. The fresh water 11 resulting from the condensation of the water vapor is led out of the water collector 14 to flow into the high-altitude water reservoir 39. The artificial precipitation accumulated in the high-altitude reservoir 39 flows through the hydro-generator 40 to convert the potential energy of the water into electric energy and output it. The generated artificial precipitation can be transferred into a water works for purification treatment, thereby becoming tap water for the residents to drink.

Weather data display: the average water temperature on the sea surface is 17.4 ℃, the water temperature is reduced along with the increase of the depth, the water temperature is 4-5 ℃ at the position 1000 meters below the sea surface, 2-3 ℃ at the position 2000 meters and 1-2 ℃ at the position 3000 meters. People who go by sea have the experience that air blown at sea is very humid. The meteorological data also shows: the water vapor content in the warm high-altitude air 2 is higher, and the average water vapor content in the warm high-altitude air 2 is 13.7-17.1g/m at 20 ℃ on a sunny day ³ The relative humidity is 80-100%. Therefore, the water inlet pipe 3 is preferably made of heat insulating material, and the length of the water inlet pipe 3 is preferably 300-500 m below the sea level 1, because the temperature of the seawater at this depth is 5-8 ℃, when the seawater is pumped up to be sent to the evaporator 6, the temperature of the seawater rises to about 13 ℃ and is lower than the dew point temperature 16 ℃ which is most prone to condensation, and the water vapor in the warm high-altitude air 2 is easily condensed into fresh water 11.

Preferably, in order not to consume commercial energy such as commercial power, fuel oil, fuel gas, fire coal and the like, the artificial precipitation power generation method is preferably provided with a bell mouth 7 wind collecting device, wherein the bell mouth 7 of the wind collecting device always faces warm high-altitude air 2, so that the high-altitude air (with wind energy) 2 is naturally blown in from the bell mouth 7 and is guided to the evaporator 6.

Preferably, the artificial precipitation power generation method is provided with a windmill 8 device for collecting the kinetic energy of warm high-altitude air 2, directly driving the water pump 5 by the windmill 8 and a mechanical transmission mechanism thereof, and pumping the cold seawater at the deep layer below the sea surface 1 to flow through the evaporator 6 to cool the evaporator 6; or, a sea wave power device is equipped to collect the kinetic energy of sea waves, the sea wave power device and a mechanical transmission mechanism thereof are used for directly driving the water pump 5, and the ice-cold sea water at the deep layer below the sea level 1 is pumped up; alternatively, a solar power generation device is provided, and the generated electricity is used to drive a water pump 5 to pump the cold seawater at a deep layer below the sea surface 1.

The sea wave power device is a prior art, can adopt a swing floating platform in a three-dimensional sea wave energy power generation device (CN 103925147B) in Chinese invention patents, can also adopt the prior arts such as a sea wave water pump in a sea wave energy power generation and offshore oil extraction device (CN 102116245A) in Chinese patent disclosure, and can also adopt a sea wave energy conversion device in a sea wave energy capture mechanism (CN 102032094A) with automatically variable quality in Chinese patent disclosure, and the like, and the details are not repeated herein. The solar power generation device is also a prior art, and is not described in detail herein.

Preferably, the artificial precipitation power generation method is characterized in that the sea, the water inlet pipe 3, the water pump 5, the evaporator 6 and the water outlet pipe 4 are communicated to form a circulating water path; the ice-cold seawater is sucked into a water inlet pipe 3 from a deeper layer below the sea surface 1, and then flows through a water pump 5, an evaporator 6 and a water outlet pipe 4 with a water outlet 13 lower than the sea surface 1 and returns to the sea; the water outlet 13 is preferably 10m or 5m or 1m or 0.1m below the sea surface.

Therefore, the circulating water path can exert siphon effect, and can overcome 10-15% of water pump power loss by using very small power to drive the ice-cold seawater to flow through the evaporator 6, thereby achieving the technical effects of low energy consumption and even zero energy consumption. On the contrary, if the water outlet 13 is higher than the sea surface 1, exposed to the air and not inserted into the sea water below the sea surface 1, a circulating waterway with zero lift is not formed, a reverse siphon effect is generated, large power is needed to pump the cold sea water, and energy is consumed. When in implementation, the water outlet 13 is intentionally close to the sea surface 1 but not deep into the sea water, which causes energy consumption increase and many defects and is a deterioration method.

Preferably, in order to ensure that the seawater can be continuously desalinated when the wind power is insufficient (including the absence of wind) so as to ensure that the fresh water 11 can be continuously supplied, the artificial precipitation power generation method can be provided with the electric fan 10 or/and the motor 9 so as to drive the water pump 5 and the fan 10 in an electric auxiliary mode when the wind power is insufficient; to draw the cold seawater upward to flow through the evaporator 6 for cooling the evaporator 6; the warm high altitude air 2 is sent to the evaporator 6 by the blower 10, and the sent warm high altitude air 2 is cooled by the evaporator 6, so that the water vapor contained in the warm high altitude air 2 is condensed into fresh water 11. The electric fan 10 may be an electric fan, blower/fan, or the like that moves air.

Preferably, the method of generating electricity from artificial precipitation is provided with a humidifier 23 for further humidifying the warm high altitude air 2 to be condensed to reach saturation humidity, to increase the efficiency and yield of condensing out fresh water 11.

Preferably, the method of generating electricity from artificial precipitation comprises constructing a wind tunnel (also referred to as a wind pipe) and arranging a plurality of evaporators 6 within the wind tunnel 21 so that warm high-altitude air 2 is blown through the wind tunnel 21 to sweep an array of evaporators 6, see fig. 7, for example in groups of tens of thousands, arranged in "great cities" of evaporators 6 which are kilometers long. Referring also to fig. 8, in a place where wind is often generated, tens of thousands of evaporators 6 are erected to form an evaporation tower (large) building 27, and the evaporators 6 are blown by high-altitude air 2 floating from the sea surface, so that the power consumption of the fan 10 is avoided and reduced.

Preferably, the dry and cold air from the air duct after being cooled by the evaporator and separated into fresh water 11 is used as cold air to be supplied to nearby buildings, such as coastal residential areas and coastal hotels.

Preferably, since the pumped-up ice-cold seawater contains some animals, plants and silt such as small seashell, etc., it is preferable to transfer the cold energy to the circulating liquid such as low-temperature heat transfer oil through the heat exchanger 20 which is easy to clean, and to transfer the cold energy to the evaporator 6 indirectly through the cold transfer pipe 24 and the circulating liquid, as shown in fig. 4, in order to avoid blocking the fine pipes in the evaporator 6.

Preferably, in order to facilitate maintenance and management, stabilize operation, prevent backflow of seawater and reduce energy consumption, as shown in fig. 5, a large pit lower than the sea surface 1 is excavated on the seaside land or on the island, the equipment of the artificial precipitation power generation system is installed in the large pit, and the water inlet pipe 3, the water pump 5, the heat exchanger 20 and the water outlet pipe 4 are always filled with seawater by means of the natural pressure of the seawater, so that the water pump 5 is always in the working state of a zero-lift circulation loop, thereby achieving the purposes of reducing the power loss of the water pump 5, stabilizing operation (avoiding the influence of unstable ocean climate such as tide and sea wave), and preventing backflow of seawater (omitting a check valve and reducing the energy consumption thereof). In other words, the water intake pipe 3, the water pump 5, the heat exchanger 20, the water outlet pipe 4, and other facilities are installed at a position lower than the sea surface 1, and the water intake pipe 3, the water pump 5, the heat exchanger 20, and the water outlet pipe 4 are always filled with cold seawater. The cold energy is exchanged to a circulating liquid such as a low temperature heat transfer oil through the easy-to-clean heat exchanger 20, and is indirectly transferred to the nearby evaporator 6 through the cold transfer pipe 24 and the circulating liquid.

Example two.

As shown in fig. 7 and 8, it is chosen to install the evaporator 6 on the land with the wind frequently, the distance from the seaside is less than or equal to 5 km (because the moisture is still large and the water yield is high when the high altitude air 2 is diffused to the land in the distance), the altitude is less than or equal to 50m or 100m (because the moisture in the altitude is the largest and the water yield is the highest), a "great wall" consisting of tens of thousands of evaporators 6 is constructed, and tens of thousands of evaporators 6 can also be erected into one (large) evaporation tower 27 (for example, 50m high). The high-altitude air 2 floating from the sea surface naturally blows the evaporator 6 and naturally condenses to generate fresh water 11, so that the power consumption of the air supply of the fan 10 is avoided and reduced.

As shown in fig. 2, and with reference to fig. 1, an artificial precipitation power generation system may include: a pumped storage power station 39 and an upper reservoir 40 thereof, sea, warm high-altitude air 2, a fan 10, ice-cold seawater in the deep sea, a water inlet pipe 3, a water pump 5, an evaporator 6, a water outlet pipe 4, a water collector 14, a bypass water pipe 17 and a water valve 18 thereof, a reservoir 16 with a sea surface 1 lower than a reservoir surface 15 at the time of tide rise and a heat-preservation floating ball 19 thereof; the ice-cold seawater is sucked into a water inlet pipe 3 from a deeper layer below the sea surface 1, flows through a water pump 5 or/and an evaporator 6, a water outlet pipe 4 or/and a bypass water pipe 17 and is siphoned into a reservoir 16; the sea, the water inlet pipe 3, the water pump 5 or/and the evaporator 6, the water outlet pipe 4 or/and the bypass water pipe 17 are communicated to form a circulating water path; the condensed fresh water 11 drops into the water collector 14 and is led out. The heat preservation floating ball 19 is preferably a white plastic foam ball with the diameter of 30-360 mm. The reservoir 16 is preferably a reservoir 16 formed by damming up the narrowest part of the bay.

Preferably, the artificial precipitation power generation system is provided with a bell mouth 7 wind collecting device, wherein the bell mouth 7 of the wind collecting device faces the warm high-altitude air 2, so that the warm high-altitude air 2 is naturally blown in from the bell mouth 7 and is guided to the evaporator 6. Preferably, a windmill 8 device is further provided, the windmill 8 drives the water pump 5, and the cold seawater at the deeper layer below the sea surface 1 is pumped upwards by combining the siphon effect; the sea wave power device can be also equipped to collect the kinetic energy of the sea wave, the water pump 5 is driven by the sea wave power device, and the cold sea water in the deeper layer below the sea surface 1 is pumped up by combining the siphon effect; preferably, a solar power generation device is provided, which uses the generated electricity to drive the water pump 5, and combines the siphon effect to pump the cold seawater at the deeper layer below the sea surface 1.

The sea wave power device is a prior art, can adopt a swing floating platform in a three-dimensional sea wave energy power generation device (CN 103925147B) in Chinese invention patents, can also adopt the prior arts such as a sea wave water pump in a sea wave energy power generation and offshore oil extraction device (CN 102116245A) in Chinese patent disclosure, and can also adopt a sea wave energy conversion device in a sea wave energy capture mechanism (CN 102032094A) with automatically variable quality in Chinese patent disclosure, and the like, and the details are not repeated herein. The solar power generation device is also a prior art, and is not described in detail here.

Preferably, the reservoir surface 15 of the reservoir 16 containing the chilled sea water is covered with a heat retaining float 19 to block sunlight from excessively rapid warming of the stored chilled sea water.

Preferably, the natural seawater desalination and energy storage power generation system is provided with an electric fan 10 or/and an electric motor 9, so that when wind power is insufficient, the electric power is used for assisting and driving the water pump 5 and the fan 10, the electric water pump 5 is used for pumping cold seawater from a deeper layer below the sea surface 1 to the evaporator 6, and the electric fan 10 is used for conveying warm high-altitude air 2 to the evaporator 6.

Example three.

As shown in fig. 3, and referring to fig. 1, an artificial precipitation power generation system comprises: a pumped storage power station 39 and an upper reservoir 40 thereof, the sea, warm high-altitude air 2, a fan 10, ice-cold seawater deep in the sea, a water inlet pipe 3, a water pump 5, an evaporator 6, a water outlet pipe 4, a water collector 14, a bypass water pipe 17 and a water valve 18 thereof, a reservoir 16 with a tidal-back reservoir surface 15 higher than the sea surface 1 and a heat-preservation floating ball 19 thereof; the stored ice-cold seawater in the reservoir 16 is sucked into the water inlet pipe 3 from the reservoir 16, flows through the water pump 5 or/and the evaporator 6 and the water outlet pipe 4 and is siphoned into the sea; the sea, the water inlet pipe 3, the water pump 5 or/and the evaporator 6 and the water outlet pipe 4 are communicated to form a circulating waterway; the fresh water 11 formed by the condensation of the water vapor drops into the water collector 14 and is led out.

Preferably, the artificial precipitation power generation system is provided with a bell mouth 7 wind collecting device, wherein the bell mouth 7 of the wind collecting device faces the warm high-altitude air 2, so that the warm high-altitude air 2 is naturally blown in from the bell mouth 7 and is guided to the evaporator 6. It is preferable to provide a means of a windmill 8 for driving the water pump 5 by the windmill 8 to return the cold seawater stored in the reservoir 16 to the sea by a siphon effect.

Preferably, the natural seawater desalination and energy storage power generation system is provided with an electric fan 10 or/and an electric motor 9, so that when wind power is insufficient, the electric power is used for assisting to drive the water pump 5 and the fan 10, the electric water pump 5 is used for pumping the stored ice-cold seawater from the reservoir 16 to the evaporator 6, and the electric fan 10 is used for conveying warm high-altitude air 2 to the evaporator 6.

Example four.

As shown in fig. 6, a ship 26 such as a pontoon is provided with an artificial precipitation power generation system and an electric water pipe windlass 25 which can accommodate and accommodate a heat-insulating water inlet (winding) pipe 3, and a water pump 5 is driven by an electric motor 9 or a wind turbine 8 to pump up cold sea water in deep sea, and the cold sea water is introduced into a heat exchanger 20 and a water outlet pipe 4 and flows back to the sea with the assistance of siphon. The heat exchanger 20 can exchange the cold energy carried by the cold seawater to the circulating liquid such as low-temperature heat transfer oil, and indirectly transfer the cold energy to the evaporator 6 on the ship 26 through the cold transfer pipe 24 and the circulating liquid, thereby completing the subsequent preparation of the fresh water 11 as in the above-mentioned embodiments.

Preferably, the pumped cold seawater is pumped to land through buoyancy tanks or buoyancy pipes, and the subsequent process of producing fresh water 11 is completed as in the first embodiment.

Preferably, the artificial precipitation power generation system of the present invention is installed on a large vessel 26 to build a large dedicated water producing vessel 26. A large dedicated water producing vessel 26 is driven to the deep sea surface far from the land to produce fresh water 11, and the produced fresh water 11 is transported back to the dock.

Because the heat-insulating water inlet (coil) pipe 3 suspended in seawater, the water pump 5 on the ship 26, the heat exchanger 20, the water outlet pipe 4 suspended on the ship 26 and the seawater in the sea form a circulating water path together, the motor 9 only needs to overcome 10-15% of power loss to do work, and therefore, the power consumption of the motor 9 is very low. In other words, the circulating water path is very energy-saving.

Example five.

As shown in fig. 9, cold energy obtained from ice-cold seawater is exchanged to fresh water 11 by a heat exchanger 20, thereby producing low-temperature fresh water 30; an air duct 21 enclosed by an air duct wall 22 is arranged, a windmill is adopted to drive a circulating pump 32 to pump low-temperature fresh water 30 high, and the high-altitude air 2 is cooled in the air duct 21 in a mode of enabling the low-temperature fresh water 30 to be directly and fully contacted with the high-altitude air 2 in a large area by spraying, sprinkling, dripping, sprinkling and the like, so that the low-temperature fresh water 11 is condensed and separated out, falls into a water collector 14, and then overflows through an overflow port 31 and flows into a reservoir 12. The test research finds that: the sprayed low-temperature fresh water 30 drops, which are in frictional contact with the high-altitude air 2, condense and absorb the water vapor in the high-altitude air 2 to gradually increase in the process of falling in the air duct 21, and finally fall into the water collector 14.

Preferably, the evaporator 6 and the reservoir 12 of the natural seawater desalination and energy storage power generation system are located at an elevated location. Thus, the low-temperature fresh water 30 can be automatically flowed to the shower head 29 without pumping up the low-temperature fresh water 30 by the circulation pump 32.

The test shows that: one ton of fresh water 11 is prepared in the same way, the condensation water separation is carried out in a mode that the low-temperature fresh water 30 is in direct large-area full contact with the high-altitude air 2, compared with the condensation water separation in a mode that the high-altitude air 2 is blown to the evaporator 6, the condensation water separation rate is higher, energy is saved, the investment of the evaporator 6 is not needed, only the investment of sprinkling parts such as a sprinkler 29/a sprayer/a drip nozzle/a shower with low cost is needed, and the initial market price inquiry is known, and the investment is saved by more than ten times.

Example six.

Preferably, the evaporator 6 of the natural seawater desalination and energy storage power generation system is installed at a high altitude (such as a mountain) with an altitude of 300-3000 m. Therefore, on one hand, the rich water vapor in the low cloud mist can be condensed to improve the yield of the fresh water 11, on the other hand, the fresh water 11 produced by the other party can automatically flow from the water collector 14 to the high-altitude reservoir 12 or reservoir for storage, so that the fresh water can automatically flow from the high place to the home of a user or automatically flow to a water-deficient area, the north-south water diversion and the east-west water diversion are realized, and the situation that the water is pumped from the low place to the high place by using a plurality of stages of water pumps 5 like the conventional north-south water diversion project can be avoided.

Preferably, in order to circulate the ice-cold seawater at a low altitude position as much as possible, and to avoid the disadvantages of the high cost of the water intake pipe 3, the vulnerability of the water intake pipe 3 to leakage, and the like, which are caused by the large pressure change of the pipe wall due to the circulation of the ice-cold seawater at a high altitude position, it is preferable to exchange the cold energy to the evaporator 6 at a high altitude position (e.g., on a high mountain) by the multistage heat exchanger 20, as shown in fig. 10. In this way, very low circulation pump power losses are available to transfer cold energy to the evaporator at high altitude.

Example seven.

Preferably, as shown in fig. 11, a plurality of evaporators 6 are installed in close proximity to a plurality of air pumps 33, respectively, and arranged in parallel to form a great wall of wind power evaporators 35 extending over several tens of kilometers. For example, the evaporator 6 is installed at a position near the front, rear, left, right, upper, lower, etc. of the air pump 33. The air pump 33 is blown by a stream of flowing high altitude air 2 (i.e. sea wind), the ice-cold sea water or circulating liquid is driven by the air pump 33 to flow through the evaporator 6, and the evaporator 6 is blown by the same stream of flowing high altitude air 2 (i.e. the same stream of sea wind) to condense the high altitude air 2 and separate out fresh water 11. The air pump 33 may be a wind-driven circulation pump with blades 34, and the air pump 33 is a wind-driven pump that the inventor has created for this time. Therefore, the land and wind energy can be effectively utilized, the evaporator 6 and the wind pump 33 share the same land and share the same wind source, and therefore the land resource is saved and the wind resource is effectively utilized.

As shown in fig. 14, the evaporator 6 and the air pump 33 are preferably integrally designed, and a wind power evaporator 35 like an air conditioner outdoor unit is manufactured. In other words, the wind-powered evaporator 35 includes the evaporator 6 and the wind pump 33, and the wind pump 33 drives the ice-cold seawater or the circulating liquid to flow through the evaporator 6. Thus, the air passing area of the evaporator 6 is approximately equal to the air passing area of the fan blades 34 (of the air pump 33), so that the circulating liquid (such as ice-cold seawater) and the blowing evaporator 6 are driven by wind energy to the maximum extent, the capacity of condensing and separating out the fresh water 11 is greatly improved, and the use of high-cost commercial energy such as commercial power is avoided as much as possible.

Example eight.

As shown in fig. 12, an artificial precipitation power generation system may include: sea, warm flowing high altitude air 2, cold sea water deep in sea, water inlet pipe 3, evaporator 6, water outlet pipe 4 the water collector 14, the bypass water pipe 17 and the water valve 18 thereof, the reservoir 16 with the reservoir surface 15 lower than the sea surface 1 during the tide rising and the heat insulation floating ball 19 thereof; the ice-cold seawater is sucked into the water inlet pipe 3 from a deeper layer below the sea surface 1, flows through the evaporator 6, the water outlet pipe 4 or/and the bypass water pipe 17 and is siphoned into the reservoir 16; the sea, the water inlet pipe 3, the evaporator 6, the water outlet pipe 4 or/and the bypass water pipe 17 are communicated to form a siphon waterway; the fresh water 11 formed by the condensation of the water vapor drops into the water collector 14 and is led out. The heat preservation floating ball 19 is preferably a white plastic foam ball with the diameter of 30-360 mm. The reservoir 16 is preferably a reservoir 16 formed by damming up the narrowest part of the bay.

On the contrary, as shown in fig. 13, when the tide is going down, the reservoir surface 15 is higher than the sea surface 1, and the cold seawater stored in the reservoir 16 can return from the original path and be siphoned into the sea through the evaporator 6.

Preferably, the artificial precipitation power generation system is provided with a bell mouth 7 wind collecting device, and the bell mouth 7 of the wind collecting device faces the warm high-altitude air 2, so that the warm high-altitude air 2 is naturally blown in from the bell mouth 7 and is guided to the evaporator 6.

In conclusion, the present invention can completely depend on the water level difference between the sea surface 1 and the reservoir surface 15 during the rising tide period and the falling tide period, and the natural energy sources and the natural force such as sea wind, sea wave and sea tide to drive the ice-cold seawater to flow into and out of the evaporator 6, thereby realizing zero-energy consumption seawater desalination.

Example nine.

As shown in fig. 15, an artificial precipitation power generation system may include: the reservoir surface 15 is lower than the reservoir 16 of the sea surface 1 when the tide rises; the cold sea water is poured into tens of hundreds of large-diameter water inlet pipes 3 (without U-shaped pipe siphon) from the deep layer below the sea surface 1, and then is poured into a reservoir 16 for storage, and then is used for subsequent use, and when the sea water is used up and the tide is drawn back, the sea water is returned to the sea surface. The reservoir 16 is preferably a reservoir 16 formed by damming up the narrowest part of the bay.

Example ten.

As shown in fig. 16, selecting a sea area with abundant ice-cold ocean currents 37, and constructing an artificial precipitation power generation system, wherein a water inlet (pipe) port 36 is arranged at the upstream of the ice-cold ocean currents 37, and a water outlet (pipe) port 13 is arranged at the downstream of the ice-cold ocean currents 37; the cold ocean current 37 automatically flows upstream into the inlet pipe 3, through the heat exchanger 20 or/and the evaporator 6, out the outlet pipe 4 and the three-way water outlet 38, and downstream of the cold ocean current 37. It is preferable to design a three-way outlet 38 as shown in fig. 17 to reduce the pressure at the outlet 13. Thus, the water inlet pipe 3, the heat exchanger 20 or/and the evaporator 6 and the water outlet pipe 4 form a U-shaped pipe-like siphon effect water path, water can automatically flow only by filling the pipe when the water path is used for the first time, and cold energy carried by the ice-cold seawater can be automatically transmitted to the heat exchanger 20 or/and the evaporator 6 without consuming any other energy sources, so that the fresh water 11 is condensed and separated out.

Ocean currents are large-scale, non-periodic movements of the ocean's deep ocean currents from one ocean location to another, with average ocean currents ranging from 800 meters to 1000 meters in depth. In recent years, scientists have discovered important ocean currents in the oceans around the world, like new-guinea-coastal undercurrents, cotton-orchid undercurrents, and the like.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, therefore, all equivalent variations of the present invention are included in the scope of the present invention.

Claims

1. An artificial precipitation power generation method is characterized by comprising the following steps:

(1) the water vapor contained in the air at high altitude at sea is used as a water source;

(2) pumping and circulating the ice-cold seawater at a deep layer below the sea surface through a closed circulating water path formed by communicating a water inlet pipe, a circulating water pump, a heat exchanger or an evaporator at a high-altitude position and a water outlet pipe; the ice-cold seawater flows through a heat exchanger or an evaporator, and the cold energy contained in the ice-cold seawater is transferred to the evaporator;

(3) the high altitude air is guided to an evaporator for cooling, so that the water vapor contained in the high altitude air is condensed into fresh water, namely artificial precipitation;

(4) collecting and storing the artificial precipitation into a high-altitude reservoir;

(5) the artificial precipitation stored in the high-altitude reservoir flows through the hydraulic generator to convert the potential energy of the water into electric energy and output the electric energy.

2. A method of generating electricity from artificial precipitation according to claim 1, including the features of any one or more of the following combinations i-ix:

configuring a windmill device to collect wind energy, and directly driving a water pump by using a mechanical transmission mechanism of the windmill;

II, sending the high-altitude air with the altitude of more than or equal to 500m or 50m or 30m into the evaporator;

iii, constructing an air duct, and arranging the evaporator in the air duct to blow high-altitude air to the evaporator through the air duct;

iv, building a reservoir at the sea, and siphoning the ice-cold seawater at a deeper layer below the sea surface to the reservoir with the reservoir surface lower than the sea surface through a water inlet pipe, an evaporator or a heat exchanger and a water outlet pipe for storage when the tide rises; or, when the tide is ebb, the ice-cold seawater stored in the reservoir is siphoned to the sea below the reservoir surface through the water inlet pipe, the evaporator or the heat exchanger and the water outlet pipe; or when the tide rises, the ice-cold seawater at the deeper layer below the sea surface directly gushes into a reservoir with the reservoir surface lower than the sea surface through a water inlet pipe for storage;

v, a bell mouth wind collecting device is arranged, and the bell mouth is mounted facing the wind, so that high-altitude air is naturally blown in from the bell mouth and is guided to the evaporator;

vi, the temperature of the ice-cold seawater fed into the evaporator is less than or equal to 16 ℃ or 12 ℃ or 8 ℃ or 5 ℃;

temperature T of air at vii and high altitude ₂ With the temperature T of the cold seawater as it is fed into the evaporator ₁ The difference is more than or equal to 5 ℃ or 10 ℃ or 15 ℃ or 20 ℃; the relative humidity of the air at high altitude is more than or equal to 70 percent;

viii, a water inlet is arranged at the upstream of the ice-cold ocean current, and a water outlet is arranged at the downstream of the ice-cold ocean current; the cold ocean current automatically flows from upstream into the water inlet pipe, through the heat exchanger or/and the evaporator, and out of the water outlet pipe to downstream of the cold ocean current.

3. A method of power generation with artificial precipitation as claimed in claim 2, which includes the features in any one or more of (1) to (r):

(1) the sea, the water inlet pipe or/and the water pump, the evaporator or the heat exchanger and the water outlet pipe are communicated to form a circulating water path; the ice-cold seawater flows into the water inlet pipe from the deeper layer below the sea surface, flows through the evaporator or the heat exchanger, flows through the water outlet pipe with the water outlet lower than the sea surface, and then flows back to the sea or the reservoir;

(2) the fan or/and the water pump is/are provided with a motor, so that the fan or the water pump is driven by electric power in an auxiliary manner when wind power is insufficient;

(3) a humidifier is configured to humidify the high altitude air led to the evaporator in advance to reach saturation humidity, so that the high altitude air nodule efficiency is improved, and the efficiency and the yield of condensing and separating out fresh water are increased; or/and a dust raising device is configured to raise dust into the high-altitude air so as to improve the high-altitude air tuberculosis efficiency and increase the efficiency and yield of condensing and separating out fresh water;

(4) the evaporator or the heat exchanger is connected with a bypass water pipe in parallel and used for discharging the redundant ice-cold seawater to a reservoir for storage;

(5) a layer of heat preservation floating ball is placed on the water surface of the reservoir and used for shielding sunlight and avoiding the stored ice-cold seawater from being heated too fast;

(6) the water outlet is 10m or 5m or 1m or 0.1m lower than the sea surface;

(7) a water inlet pipe, a water pipe windlass, a water pump, an evaporator or a heat exchanger and a water outlet pipe which can be folded and unfolded are arranged on the ship; the ice-cold seawater is pumped into the water inlet pipe from the deep layer below the sea surface, and flows back to the sea through the evaporator or the heat exchanger and the water outlet pipe;

(8) the circulating liquid is conveyed to a central air conditioner through a cold conveying pipe so as to generate cold air to be supplied to nearby buildings;

(9) the dry and cold air cooled by the evaporator and separated out fresh water is used as cold air to be supplied to nearby buildings;

the ratio of the density of the water inlet pipe at the R to the density of the seawater is 0.8-1.2; alternatively, the heat exchanger or/and the evaporator are installed at a location having an altitude of less than 10 meters; alternatively, a multi-stage heat exchanger is provided to exchange cold energy to the evaporator at the high altitude location.

4. An artificial precipitation power generation method according to claim 2 or 3, wherein:

exchanging cold energy obtained from the ice-cold seawater to fresh water by a heat exchanger to cool the fresh water to low-temperature fresh water at the temperature lower than 17 ℃ or 10 ℃, and cooling the high-altitude air by adopting the low-temperature fresh water at the temperature lower than 17 ℃ or 10 ℃ and a mode of directly and fully contacting the high-altitude air in a large area, thereby condensing and separating out the fresh water;

or the evaporator and the air pump are arranged close to each other, the air pump is blown by flowing high-altitude air, then the air pump is used for driving ice-cold seawater or circulating liquid to flow through the evaporator, and the flowing high-altitude air is used for blowing the evaporator so as to condense the high-altitude air and separate out fresh water; the air pump is a pump which is provided with fan blades and driven by wind power; the evaporator and the air pump form a wind power evaporator;

or the water inlet pipe, the water pump, the heat exchanger and the water outlet pipe are arranged at a low position lower than the sea surface, and the water inlet pipe, the water pump, the heat exchanger and the water outlet pipe are filled with ice-cold seawater all the time.

5. An artificial precipitation power generation system, characterized by comprising: the system comprises a hydraulic generator, a high-altitude reservoir, sea, high-altitude air, ice-cold seawater, a water inlet pipe or/and a water pump, a heat exchanger or an evaporator at a high-altitude position and a water outlet pipe; wherein, the sea, the water inlet pipe or/and the water pump, the evaporator or the heat exchanger and the water outlet pipe are communicated to form a circulating water path; the ice-cold seawater flows into the water inlet pipe from the deeper layer below the sea surface, flows through the evaporator or the heat exchanger and the water outlet pipe, and then flows back to the sea; fresh water condensed from the high-altitude air is collected and stored in the high-altitude reservoir; the artificial precipitation stored in the high-altitude reservoir flows through the hydraulic generator, and the potential energy of the water is converted into electric energy and output.

6. An artificial precipitation power generation system according to claim 5, including the features of any one or more of the following i-ix:

a windmill device is configured to collect wind energy and drive a water pump by a windmill;

ii, the altitude of the evaporator is less than or equal to 50m, or 30m, or 20m, or 10m, or 5m; iii, constructing an air duct, and arranging the evaporator in the air duct to blow high-altitude air to the evaporator through the air duct;

iv, a reservoir is built at the sea, and when the tide rises, the ice-cold seawater at the deeper layer below the sea surface is siphoned into the reservoir with the reservoir surface lower than the sea surface through a water inlet pipe, an evaporator or a heat exchanger and a water outlet pipe; or the ice-cold seawater stored in the reservoir is siphoned into the sea below the reservoir surface through the water inlet pipe, the evaporator or the heat exchanger and the water outlet pipe during the ebb tide; or when the tide rises, the ice-cold seawater at the deeper layer below the sea surface directly gushes into a reservoir with the reservoir surface lower than the sea surface through a water inlet pipe for storage;

v, configuring a bell mouth wind collecting device, mounting the bell mouth facing the wind, and naturally blowing the high-altitude air from the bell mouth and guiding the air to the evaporator;

vi, the temperature of the ice-cold seawater fed into the evaporator is less than or equal to 16 ℃, or 12 ℃, or 8 ℃ or 5 ℃;

temperature T of air at vii and high altitude ₂ With the temperature T of the cold seawater as it is fed into the evaporator ₁ The difference is more than or equal to 5 ℃, or 10 ℃, or 15 ℃ or 20 ℃; the relative humidity of the air at high altitude is more than or equal to 70 percent;

viii, a water inlet is arranged at the upstream of the ice-cold ocean current, and a water outlet is arranged at the downstream of the ice-cold ocean current; the cold ocean current automatically flows from upstream into the intake pipe, through the heat exchanger or/and evaporator, out the outlet pipe, and downstream into the cold ocean current.

7. An artificial precipitation power generation system in accordance with claim 6, including the features in any one or more of the following (1) to (r):

(1) the sea, the water inlet pipe or/and the water pump, the evaporator or the heat exchanger and the water outlet pipe are communicated to form a circulating water path; the ice-cold seawater flows into the water inlet pipe from the deeper layer below the sea surface, flows through the evaporator or the heat exchanger and the water outlet pipe with the water outlet lower than the sea surface, and then flows back to the sea or the reservoir;

(2) the fan or/and the water pump are/is provided with a motor, so that the fan or the water pump is driven by electric power in an auxiliary manner when wind power is insufficient;

(3) the humidifier is configured to further humidify the high-altitude air so as to improve the air nodule efficiency at high altitude and increase the efficiency and yield of condensing and separating out fresh water;

(4) the evaporator or the heat exchanger is connected with a bypass water pipe in parallel and used for draining redundant ice-cold seawater to a reservoir for storage;

(6) the water outlet is 10m or 5m or 1m or 0.1m lower than the sea surface;

(7) a water inlet pipe, a water pipe wheel, a water pump, an evaporator or a heat exchanger and a water outlet pipe which can be folded and unfolded are arranged on the ship; the ice-cold seawater is pumped into the water inlet pipe from the deeper layer below the sea surface, flows through the evaporator or the heat exchanger and the water outlet pipe and flows back to the sea;

(8) the cold conveying pipe is communicated with the central air conditioner and conveys the circulating liquid to the central air conditioner so as to generate cold air to be supplied to nearby buildings for use;

the ratio of the density of the R water inlet pipe to the density of the seawater is 0.8-1.2; alternatively, the heat exchanger or/and the evaporator are installed at a location having an altitude of less than 10 meters; alternatively, a multi-stage heat exchanger is provided to exchange cold energy to the evaporator at the high altitude location.

8. An artificial precipitation power generation system according to claim 5, 6 or 7, wherein: an evaporator is arranged on land which is always windy, is less than or equal to 5 kilometers away from the seaside and has the altitude less than or equal to 50 m; the evaporator is naturally blown by high-altitude air floating from the sea surface, and fresh water is generated by natural condensation.

9. An artificial precipitation power generation system according to claim 5, 6 or 7, wherein: the evaporator is arranged at a high altitude of 300-3000m, and the produced fresh water automatically flows into a reservoir or a reservoir at a high altitude position.

10. An artificial precipitation power generation system according to claim 5, 6 or 7, wherein:

exchanging cold energy obtained from the ice-cold seawater with fresh water by a heat exchanger to cool the fresh water into low-temperature fresh water at a temperature lower than 17 ℃ or 10 ℃, and cooling the high-altitude air by adopting the low-temperature fresh water at a temperature lower than 17 ℃ or 10 ℃ and a mode of directly and fully contacting the high-altitude air in a large area, thereby condensing and separating out the fresh water;