Safe and efficient tower-type solar thermal power station heliostat hybrid aiming method

A technology of tower solar energy and heliostats, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as failure, reduction of heat flux density on the surface of the heat absorber, and failure to consider the stress characteristics of the heat absorber. Achieve the effect of improving energy absorption and system efficiency

Pending Publication Date: 2021-02-26
XI AN JIAOTONG UNIV
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Problems solved by technology

However, in the existing heliostat aiming strategies, most of them are aimed at reducing the non-uniformity of the overall heat flux density on the surface of the heat sink, without considering the specific stress characteristics of each tube row of the heat sink, and not fully utilizing the different Ability to resist stress failure of heat-absorbing tube banks

Method used

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  • Safe and efficient tower-type solar thermal power station heliostat hybrid aiming method
  • Safe and efficient tower-type solar thermal power station heliostat hybrid aiming method
  • Safe and efficient tower-type solar thermal power station heliostat hybrid aiming method

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing, take Solar Two tower type molten salt solar thermal power plant as example, the present invention is described in detail:

[0028] Such as figure 1 As shown, the specific implementation process of the heliostat aiming strategy of the tower type molten salt solar thermal power station of the present invention is as follows:

[0029] (1) According to the number of heat absorber tube rows of the studied solar thermal power station (the heat absorber of the Solar Two solar thermal power station has 24 heat absorber tube rows), take the heat absorbing tower as the center, and arrange the mirror field along the circumferential direction Divided into 24 areas, such as figure 2 shown.

[0030] (2) The heliostats in the heliostat field area corresponding to each heat absorbing pipe row are aimed at the equatorial position of the center of the heat absorber, that is, the circumscribed circle of the center of the outer surface of ...

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Abstract

A safe and efficient tower-type solar thermal power station heliostat hybrid aiming method combines the advantages of a heliostat equator aiming strategy and the advantages of an existing solar thermal power station heliostat multipoint aiming strategy, the equator aiming strategy is used for improving energy absorbed by a heat absorber, and multipoint aiming is used for ensuring that the heat absorber does not have stress failure. Through organic combination of the two aiming strategies, the capability of resisting thermal stress failure of each heat absorption tube row in the heat absorber can be fully exerted, and on the premise of not increasing any additional equipment, the absorption energy of the heat absorber can be effectively improved while the stress failure of the heat absorberis avoided, and therefore, the system efficiency of the tower-type solar thermal power station is improved.

Description

technical field [0001] The invention belongs to the technical field of solar thermal power generation, and in particular relates to a safe and efficient hybrid aiming method for a heliostat in a tower-type solar thermal power station. Background technique [0002] Solar thermal power generation technology can be combined with a low-cost thermal storage subsystem, and has stable, continuous, and dispatchable high-quality power output characteristics. In recent years, it has received more and more attention and has become one of the important directions for the development of new energy. There are mainly four types of existing solar thermal power generation technologies, namely tower solar thermal power generation, trough solar thermal power generation, linear Fresnel solar thermal power generation and dish solar thermal power generation. Among them, tower-type solar thermal power generation technology can effectively improve the overall efficiency of solar thermal power plant...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F30/28G06F113/08G06F119/14G06F119/02G06F119/08
CPCG06F30/23G06F30/28G06F2113/08G06F2119/14G06F2119/02G06F2119/08
Inventor 李明佳王文奇邱羽
Owner XI AN JIAOTONG UNIV
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