A solar thermal power station molten salt storage device, storage system and solar thermal power station
A storage device and a technology for a solar thermal power station, applied in the field of solar thermal power station, can solve the problems of power station economic impact and large molten salt, and achieve the effects of reducing the loss of molten salt, reducing the impact and increasing the utilization rate
Active Publication Date: 2022-07-26
ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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- Abstract
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- Application Information
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Problems solved by technology
Since the molten salt pump has requirements on the minimum liquid level of the molten salt in the storage tank, there is a large amount of unusable molten salt at the bottom of the storage tank, which has a great impact on the economy of the power station
Method used
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Embodiment 1
[0032] This embodiment provides a molten salt storage device for a solar thermal power station, see figure 1 , figure 2, a schematic structural diagram of the molten salt storage device described in this embodiment. The molten salt storage device includes: a storage device body 100 for storing molten salt; at least one molten salt pump assembly 7 is provided in the storage device body 100, and a molten salt pump assembly 7 is formed inside of the molten salt pump assembly 7 to accommodate a molten salt pump. and the accommodating space 70 for molten salt, the molten salt pump assembly 7 is provided with at least one molten salt inlet 71, the molten salt inlet 71 extends below the lowest working liquid level of the molten salt pump, and the radial dimension of the accommodating space 70 is smaller than the storage The radial dimension of the device body 100; wherein, when the molten salt in the storage device body 100 reaches the minimum working level of the molten salt pump,...
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The invention discloses a molten salt storage device, a storage system and a solar thermal power station, comprising: a storage device body, a molten salt pump assembly part is arranged in the storage device body, and the molten salt pump assembly part is provided with a molten salt inlet , the radial dimension of the accommodation space in the molten salt pump assembly is smaller than the radial dimension of the storage device body. In the present invention, the molten salt pump assembly is arranged in the storage device body, and when the molten salt in the storage device body reaches the minimum working liquid level of the molten salt pump, negative pressure is formed in the accommodating space of the molten salt pump assembly. Then the molten salt in the storage device body will flow into the molten salt pump assembly under the action of the pressure difference, so that the molten salt level in the molten salt pump assembly is higher than the minimum working level of the molten salt pump. The salt pump can work, thus reducing the loss of molten salt due to the minimum working level of the molten salt pump.
Description
technical field [0001] The invention relates to the technical field of solar thermal power plants, in particular to a molten salt storage device for solar thermal power plants. Background technique [0002] Solar high-temperature thermal power generation technology is an important direction for the large-scale utilization of solar energy. The working fluids used in solar high temperature thermal power generation include water (steam), molten salt, air, heat transfer oil, liquid metal and other heat transfer media. Among them, due to the fluctuation and discontinuity of solar illumination, a large-scale heat storage system must be installed in the solar thermal power generation system to continuously and stably generate electricity. Molten salt has the characteristics of high operating temperature, wide temperature range, good flow characteristics, and large heat capacity. As a heat storage medium, it can be used in a heat storage system to make up for the problem of unstabl...
Claims
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IPC IPC(8): F24S60/30F24S80/30F24S20/20
CPCF24S60/30F24S20/20F24S80/30Y02E10/40
Inventor 毕文剑唐娟唐亚平戈晓闻王伊娜
Owner ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD