Novel heat absorber of tower-type photo-thermal power station

A technology of photothermal power stations and heat absorbers, applied in the mechanical field, can solve problems such as radiation heat loss, achieve the effects of reducing brightness, reducing unit heat load, and reducing light pollution

Inactive Publication Date: 2015-12-16
BEIJING SHOUHANG IHW RESOURCES SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current vertical heat-absorbing screen is a single row of radiation heat-absorbing tube screens perpendicular to the ground, which are generally arranged in a single row. When the light reflected by the heliostat shines on the heat-absorbing screen, part of the light is not absorbed by the heat-absorbing screen. Instead, it is reflected, so when viewed from a distance, the heat absorber is very bright, and when the temperature of the heat absorbing screen is high, its radiated heat is a large loss

Method used

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  • Novel heat absorber of tower-type photo-thermal power station
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  • Novel heat absorber of tower-type photo-thermal power station

Examples

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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the vertical heat-absorbing panels in the current tower-type heat absorber are single-row radiation heat-absorbing tube panels perpendicular to the ground, which are generally arranged in a single row. When the light reflected by the heliostat shines on the heat-absorbing panel , part of the light is not absorbed by the heat-absorbing screen but is reflected, so the heat-absorbing device is very bright when viewed from a distance, and when the temperature of the heat-absorbing screen is high, its radiated heat is a large loss.

[0027] Such as Figure 2-5 As shown, it is a new type of tower-type photothermal power station heat absorber of the present invention, the heat absorber is composed of a plurality of heat absorber units 1, and the plurality of heat absorber units 1 are arranged along the direction of the tower circumference, in the form of Circular or polygonal, the heat absorber unit 1 includes: a first heat absorbing tube panel 11, ...

Embodiment 2

[0030] Such as Figure 6 As shown, this embodiment is basically the same as the above-mentioned embodiment, the only difference is that a third heat-absorbing tube panel 13 is provided on the side opposite to the first heat-absorbing tube panel 11 of the second heat-absorbing tube panel 12, The third heat-absorbing tube panel 13 includes a plurality of third tube bodies 131 arranged at equal intervals, and the number ratio of the third tube bodies 131 to the second tube bodies 121 is 1:1.5˜1:4.

Embodiment 3

[0032] Such as Figure 7 As shown, this embodiment is basically the same as the above-mentioned embodiment, the only difference is that a fourth heat-absorbing tube panel 14 is also provided on the side opposite to the second heat-absorbing tube panel 12 of the third heat-absorbing tube panel 13, The fourth heat absorbing tube panel 14 includes a plurality of fourth tube bodies 141 arranged at equal intervals, and the ratio of the number of the fourth tube bodies 141 to the third tube bodies 131 is 1:1.5˜1:4.

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Abstract

The invention provides a novel heat absorber of a tower-type photo-thermal power station. The heat absorber is composed of a plurality of heat absorption units. Each heat absorption unit comprises a first heat absorption tube panel, headers connected to the two ends of the first heat absorption tube panel respectively and a second heat absorption tube panel on one side of the first heat absorption tube panel, wherein the two ends of the second heat absorption tube panel are connected with the headers at the two ends. The tower-type heat absorber suitable for the large tower-type power station has the advantages that the heat absorption efficiency of the heat absorber can be significantly improved, the reflectivity of light and the emissivity of a heat tower can be reduced, and the unit heat load of the tower can be reduced; because slag coagulating tubes can receive reflected light and emitted heat of the bottom tube panels on the light perpendicular incidence back face, the tube utilization rate can be increased, and heat efficiency can be improved; besides, because emitted light of the heat absorber tube panels is reduced, the light brightness of the heat absorption panels can be reduced, the blackness coefficient of the heat absorption panels can be increased, and light pollution can be reduced.

Description

technical field [0001] The invention belongs to the mechanical field, and in particular relates to a novel tower-type solar-thermal power station heat absorber designed based on the principles of light reflection and angle coefficient maximization. Background technique [0002] The heat absorber of the tower solar thermal power station is one of the important equipment of the power station, and it is the equipment that completes the conversion of light energy reflected by the heliostat to the heat absorber into heat energy. Since the heat absorber mainly absorbs the near-infrared light and visible light from the heliostat, the heat balance of the heat absorber is mainly composed of three parts: absorption heat, radiant heat, and convective heat exchange with the environment. The current vertical heat-absorbing screen is a single row of radiation heat-absorbing tube screens perpendicular to the ground, which are generally arranged in a single row. When the light reflected by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/00F24J2/46
CPCY02E10/40
Inventor 黄文博高峰
Owner BEIJING SHOUHANG IHW RESOURCES SAVING TECH CO LTD
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