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Solar cavity-type heat absorber capable of generating overheated steam

A superheated steam and superheater technology, applied in solar thermal power generation, solar thermal devices, steam superheating, etc., to achieve the effect of hanging and cooling

Active Publication Date: 2012-02-08
DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a solar cavity heat absorber that generates superheated steam to solve the technical problems of the transient heat matching between the water wall and the superheater and the thermal stress of the superheater tube under the superheating parameters, so as to effectively solve the problem of Problems existing in the above-mentioned prior art

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  • Solar cavity-type heat absorber capable of generating overheated steam
  • Solar cavity-type heat absorber capable of generating overheated steam
  • Solar cavity-type heat absorber capable of generating overheated steam

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Embodiment Construction

[0027] The present invention will be further described below in combination with specific embodiments and accompanying drawings.

[0028] All features disclosed in this specification, or steps in all disclosed methods or processes, except for mutually exclusive characteristics and / or steps, can be combined in any way, unless otherwise stated, they can be used by other equivalent or similar Instead, each feature is intended to be replaced by alternative features, that is, each feature is only one embodiment of a series of equivalent or similar features unless stated otherwise.

[0029] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, a solar cavity heat absorber for generating superheated steam includes a water-cooled wall 2 and a superheater 8, and the water-cooled wall 2 is surrounded by several membrane wall tube panels to form a cavity with openings. The outlet of the water-cooled wall 2 is connected to the water-cooled wall outlet header 3, the water-coole...

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Abstract

The invention discloses a solar cavity-type heat absorber capable of generating overheated steam. The heat absorber comprises a water cooling wall and a superheater; the water cooling wall is a cavity which is provided with an opening and defined by a plurality of membrane-type pipe panels, and the water cooling wall is in vertical parallel arrangement; the superheater is positioned at the inner side of the water cooling wall; the pipe panel of the superheater is in horizontal arrangement; the inner side of the water cooling wall is provided with an 'H'-shaped water cooling connection piece which limits and fixes the superheater; and the 'H'-shaped water cooling connection piece consists of a first vertical pipe section, a horizontal pipe section and a second vertical pipe section. The problems of the transient heat match of the water cooling wall with the overheated parameters and the superheater and heat stress of a superheater pipe are solved through the cavity-type heat absorber, thus the heat absorber can adopt the parameters of the superheater, and the power station efficiency is improved.

Description

technical field [0001] The invention relates to a heat absorber, in particular to a solar cavity type heat absorber for generating superheated steam. Background technique [0002] The tower solar thermal power generation system requires the steam parameters to be kept within the allowable range of the steam turbine. The heat absorber usually consists of three parts: preheating section, evaporation section and superheating section. In order to maintain a relatively constant temperature at the outlet of the superheater, the superheating section and evaporation section The heat absorption ratio of the segments should be well matched. Although water is used as the heat transfer medium like conventional fossil fuel boilers, the working environment of solar thermal receivers is completely different. Solar thermal receivers are subject to changes from 0 to peak every day, and are also affected by transient changes such as dark clouds. , the design of the heating surface of the hea...

Claims

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Application Information

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IPC IPC(8): F22G3/00F22G1/16F24J2/00
CPCY02E10/40
Inventor 吴梅冉燊铭聂立
Owner DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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