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Vacuum energy-storage water-power co-production system and method therefor

A hydropower and energy storage technology, applied in the field of independent systems that comprehensively utilize wind energy and solar energy to realize hydropower cogeneration, can solve the problems of high energy consumption and high cost of seawater desalination, and achieve simple structure, optimized vacuum energy storage system, and energy conversion. Efficient effect

Active Publication Date: 2013-09-04
中科国风科技有限公司
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Problems solved by technology

However, seawater desalination consumes a lot of energy, and vigorously developing cheap renewable energy and using it for seawater desalination will be an important way to solve the high cost of seawater desalination

Method used

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  • Vacuum energy-storage water-power co-production system and method therefor

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0046] For the convenience of the following description, it is explained in advance that there is a heat exchange process in the evaporator, heat exchanger, heat exchanger, and condenser. The heat exchange can be arranged in a downstream arrangement, a countercurrent arrangement, or a cross flow arrangement. Below, all three methods can be used. In addition, in each heat exchange device, the side where the fluid with a higher temperature is passed is called the hot side, and the side where the fluid with a lower temperature is passed is called the cold side. In this implementation In this example, the heat exchange method will not be described in detail, and it will be simplified as "heat exchange".

[0047] Such as figure 1 As shown, the vacuum energy...

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Abstract

The invention discloses a vacuum energy-storage water-power co-production system and a method therefor. The vacuum energy-storage water-power co-production system comprises a wind turbine device, a vacuum air-exhaust unit, a vacuum chamber, a seawater desalination unit and an air expansion acting unit. The wind turbine device drives the vacuum air-exhaust unit. The vacuum chamber is subjected to vacuum-pumping by the vacuum air-exhaust unit. The air expansion acting unit drives an electric generator to output power. The seawater desalination unit outputs fresh water. The vacuum air-exhaust unit aids the seawater desalination unit to stepwisely heat seawater. The air expansion acting unit aids the seawater desalination unit to stepwisely cool water vapor produced by an evaporator. Through direct utilization of wind energy, mechanical energy obtained by the wind turbine device is transformed into air vacuum energy by vacuum pump-based vacuum-pumping, and the air vacuum energy is transformed into air internal energy, wherein the transformation process comprises that the mechanical energy is transformed into the air internal energy. Compared with wind power generation-based electric power-driven compressed air energy storage, the vacuum energy-storage water-power co-production system has the characteristics of high energy conversion efficiency, simple structure, low investment and simple maintenance.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of renewable energy, and in particular relates to an independent system for comprehensively utilizing wind energy and solar energy to realize cogeneration of hydropower, especially for islands and remote coastal areas that are difficult to transmit electricity. The problem of energy supply meets the basic needs of life on islands and remote coastal areas. Background technique [0002] With the development of human beings and society, human footsteps have traveled to every corner of the earth. Since the beginning of the 21st century, the economy has continued to develop and living standards have continued to improve, especially for some remote areas and islands. People's living standards are seriously lagging behind. The reason is that due to the distance from the mainland, it is difficult to rely on the mainland to obtain the indispensable resources of life such as water and electricity. ...

Claims

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Application Information

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IPC IPC(8): C02F1/06C02F1/14F03D9/00C02F103/08
CPCY02A20/124Y02A20/141Y02A20/142Y02A20/212Y02E10/72
Inventor 杨科赵敬恩徐建中白井艳
Owner 中科国风科技有限公司
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