CN108301956A - It is a kind of to increase the electricity generation system that rain realizes head water power power generation using artificial orientation - Google Patents

Abstract

The invention discloses a power generation system for realizing water head hydropower generation by using artificial directional rainfall enhancement, which includes a natural terrain and a mountain top reservoir system composed of a towering mountain body, a mountaintop reservoir and the ground below the mountain, and also includes an artificial rainfall enhancement system, high-pressure water delivery and hydraulic power generation. Power generation system; the artificial rainfall enhancement system is composed of a directional rainfall enhancement device, which uses silver iodide or dry ice as a water vapor coagulant, wherein silver iodide will form silver iodide particles in the air after being heated; the high-pressure water delivery and hydroelectric power generation The system consists of high-pressure water pipelines and water turbines. The invention makes full use of the huge gravitational potential energy contained in high-altitude water vapor to artificially increase directional rainfall at typical towering mountains, reduce the loss of gravitational potential energy in the process of raindrop falling, form a super-high acting water head, and generate considerable-scale electric energy through hydropower generation.

Description

A Power Generation System Using Artificial Directional Rain Enhancement to Realize Head Hydroelectric Power Generation

technical field

The invention belongs to the technical field of clean energy, and in particular relates to a power generation system for realizing water head hydropower generation by using artificial directional rainfall enhancement.

Background technique

Hydropower occupies a large proportion of my country's energy utilization. Its principle is to use the gravitational potential energy of high water bodies and convert them into electrical energy through hydraulic turbines. The energy conversion efficiency of modern hydropower stations can reach 90%. The premise of hydropower development is that there is a large water level drop, and the current hydropower development of rivers with relatively concentrated water energy is gradually approaching saturation. In addition, the construction of large-scale reservoirs often needs to submerge a large amount of land and bring adverse effects on the ecological environment, while the operation and dispatch of hydropower stations will change the natural runoff process of the river on a large scale, forming a relatively strong disturbance to the river system.

The water body of the river mainly comes from precipitation, and high-altitude clouds contain a large amount of saturated water vapor. In the natural weather process, these water vapors condense into raindrops under appropriate conditions such as air pressure and temperature, and fall freely from an altitude of 1000m-4000m; Affected by air resistance, it quickly approaches uniform motion, and finally hits the ground at a speed of 2-9m/s; during this process, most of the potential energy of the water droplet is dissipated through air resistance, and the rest is dissipated through the impact with the ground , and finally completely converted into heat energy, which is dissipated in the surrounding environment. Recent studies have shown that there are stable high-concentration water vapor channels in the mountainous areas of southwest my country, and the concentration of high-altitude cloud clusters can be maintained at 3g-10g/m3 all year round (Wang Guangqian, Zhong Deyu, etc., Science in China, 2016, 46(1):1-8) .

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a power generation system that utilizes artificial directional rainfall enhancement to realize water head hydroelectric power generation, making full use of the huge gravitational potential energy contained in high-altitude water vapor to perform artificial directional rainfall enhancement at typical towering mountains , reduce the loss of gravitational potential energy in the process of raindrop descent, form a super high acting water head, and generate considerable electric energy through hydropower generation.

The purpose of the present invention is achieved through the following technical solutions:

A power generation system that uses artificial directional rainfall enhancement to realize head hydroelectric power generation, including the natural terrain and mountaintop reservoir system composed of towering mountains, mountain top reservoirs and ground below the mountain, and also includes artificial rainfall enhancement systems, high-pressure water delivery and hydroelectric power generation systems; The artificial rainfall enhancement system is composed of a directional rainfall enhancement device. The directional rainfall enhancement device uses silver iodide or dry ice as a water vapor coagulation accelerator, wherein silver iodide will form silver iodide particles in the air after being heated; Composed of water pipes and water turbines.

Further, the natural terrain and the mountaintop reservoir system are set on a high water vapor channel with a water vapor content of 3g/m ³ to form a high drop water body.

Further, silver iodide spraying is completed by using extended-range flame-propellant shells and flame-propellant rockets, and can also be automated by water-type drones. Sonic vibration artificial rainfall can also be used (using a high-intensity sound wave directional emission device to emit directional sound waves can make the nearby air vibrate violently, causing the water vapor in the air to gather together in the vibration to achieve controllable artificial rainfall), The high-voltage discharge produces plasma rain (the ions generated by the discharge are captured by cloud droplets to form charged cloud droplets, and the charged cloud droplets will cause water vapor to condense on its surface, thereby accelerating the growth of cloud droplets), etc.

Further, the thickness of the high-pressure water pipeline is at least 18mm.

Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:

① High power generation efficiency and high energy density: Since this scheme directly utilizes most of the gravitational potential energy of the water in the high-altitude cloud layer, it actually collects the air resistance loss during the rainwater falling process, forming a super high acting water head. The water head is 10 to 100 times higher than that of general large-scale surface reservoirs; taking a mountaintop area with a height of 2000m and an area of ^25km2 as an example, even if the precipitation on the top of the mountain remains at an average level of 0.1mm/h of small to moderate rainfall after artificial rainfall enhancement, The generated water flow rate is only 0.675m/s, and the energy generated can reach about 13.2MW; if the artificial rainfall enhancement efficiency is high, the rainfall intensity can reach 1mm/h, and its energy can be further increased to 10 times. ②Compared with traditional hydropower, the system does not need to submerge a large area of land, and it is also conducive to maintaining the ecological environment; ③This system is especially suitable for the stable and high-concentration water vapor channel where the "sky river" is located in the southwest mountainous area of my country. The region is steep and difficult to implement other forms of power generation; at present, my country is promoting the economic construction of these remote areas, and a large number of such small power generation devices can flexibly solve the problem of power supply for local densely populated areas; ④ At present, my country's hydropower Development is becoming saturated, and in this way, a new source of water energy development can be formed.

Description of drawings

Fig. 1 is a schematic structural diagram of the system of the present invention.

Reference signs: 1-high-concentration water vapor cloud layer; 2-high mountain body; 3-ground below the mountain; 4-directional rain-increasing device; 5-raindrop; 6-peak reservoir; water discharge

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a power generation system that uses artificial directional rainfall enhancement to realize water head hydropower generation. The power generation system is divided into three components: natural terrain and mountain top reservoir system, cloud water resources and artificial rainfall enhancement system, high-pressure water delivery and hydroelectric power systems. Among them, the natural terrain and the mountaintop reservoir system are composed of a towering mountain body 2, a mountaintop reservoir 6, and a ground 3 below the mountain, and the location is selected on a route with a stable and high-concentration water vapor channel to form a high-drop water body;

The cloud water resources and artificial rainfall enhancement system consists of a high-concentration water vapor cloud layer 1 and a directional rainfall enhancement device 4. The high-concentration water vapor cloud layer 1 is used to provide the water source required for rainfall. The artificial rainfall enhancement system can use silver iodide or dry ice as a water vapor coagulation accelerator. Among them, silver iodide will form extremely fine silver iodide particles in the air after being heated. 1g of silver iodide can form tens of trillions of particles. These particles can produce trillions to trillions of billions of ice crystals in cold clouds. Compared with dry ice, the amount of silver iodide used is very small. In the artificial snow enhancement project in Beijing, only 13 kg of silver iodide was used in an operating area of about 10,000 square kilometers. Silver iodide spraying can use extended-range flame agent shells and flame agent rockets, etc., and can also use water-type unmanned aerial vehicles to automate operations; It can cause the nearby air to vibrate violently, causing the water vapor in the air to gather together in the vibration to achieve controllable artificial rainfall), high-voltage discharge to generate plasma rainfall (the ions generated by the discharge are captured by cloud droplets to form charged cloud droplets, charged cloud Droplets will cause water vapor to condense on its surface, thereby accelerating the growth of cloud droplets), etc. In a word, according to the current state of development of related technologies, the problem of delivering the catalyst to the right part of the cloud at the right time and the required dose has been basically solved. The artificial rainfall enhancement system concentrates the water of a large number of raindrops 5 in the high-concentration water vapor cloud layer to the mountaintop reservoir 6 through directional control;

The high-pressure water delivery and hydroelectric power generation system consists of a high-pressure water delivery pipeline 7 and a water turbine 8 . According to calculations, for a pipeline with a water head of 4000m, the maximum pressure of the water body is 39.2MPa, and a steel pipe with a thickness of about 18mm, that is, the high-pressure water pipeline 7, is required to withstand pressure. In order to save costs, the high-pressure water pipeline 7 can be laid in sections, using thin-walled thick pipes at high altitudes and non-wall thin pipes at low altitudes. Compared with the acting water head, the flow rate head and head loss in the high-pressure water delivery pipeline 7 can be neglected. The water turbine 8 finally completes the water body discharge 9 at the bottom of the mountain under the action of the super-high acting water head, and the water turbine rotates under the action of the potential energy of the water to generate electricity. A small portion of this electricity can in turn be used to keep the entire system running.

Regarding the selection of the implementation location of the system of the present invention: first investigate the distribution of high-concentration cloud water resources, on the basis of Wang Guangqian, Zhong Deyu et al. Using data from other meteorological fields at home and abroad, clarify the content of water vapor in typical cumulonimbus clouds in southwest my country and its temporal and spatial changes, and estimate the amount of available water; combined with geographic information data, determine key implementation locations;

The design of the water vapor coagulation acceleration device in the cloud can be designed and selected through the investigation of the artificial precipitation enhancement technology commonly used in engineering and the new condensation acceleration technology, and through combination optimization, and the efficient artificial directional precipitation enhancement measures suitable for this system;

The present invention is not limited to the embodiments described above. The above description of the specific embodiments is intended to describe and illustrate the technical solution of the present invention, and the above specific embodiments are only illustrative and not restrictive. Without departing from the gist of the present invention and the scope of protection of the claims, those skilled in the art can also make many specific changes under the inspiration of the present invention, and these all belong to the protection scope of the present invention.

Claims (4)

1. A power generation system that utilizes artificial directional rainfall enhancement to realize water head hydroelectric power generation, including natural terrain and mountaintop reservoir system composed of towering mountains, mountaintop reservoirs and the ground below the mountain, characterized in that it also includes artificial rainfall enhancement systems, high-pressure water delivery and a hydroelectric power generation system; the artificial rainfall enhancement system is composed of a directional rainfall enhancement device, which uses silver iodide or dry ice as a water vapor coagulation accelerator, wherein silver iodide will form silver iodide particles in the air after being heated; the high-pressure water delivery and A hydroelectric power generation system consists of high-pressure water pipelines and water turbines. 2. according to claim 1, a kind of power generation system that utilizes artificial directional rainfall enhancement to realize head hydroelectric power generation is characterized in that, the natural topography and the mountain top reservoir system are arranged on the high water vapor channel with water vapor content of 3g/m ³ , Used to form high-drop water bodies. 3. According to claim 1, a power generation system utilizing artificial directional rainfall enhancement to realize water head hydroelectric power generation is characterized in that the silver iodide spraying is completed by using extended-range flame-propellant shells and flame-propellant rockets, and water-type unmanned machine automation. 4 . A power generation system utilizing artificial directional rainfall enhancement to realize head hydroelectric power generation according to claim 1 , wherein the thickness of the high-pressure water delivery pipeline is at least 18 mm.