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An external heat absorber structure for a tower photothermal power generation system

A technology of photothermal power generation and heat absorber, which is applied in solar thermal power generation, solar heating system, solar collector and other directions, can solve the problem of low optical efficiency of mirror field, etc. The effect of efficiency

Active Publication Date: 2020-12-15
ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an external heat absorber structure for a tower-type photothermal power generation system to solve the problem of low optical efficiency of the mirror field

Method used

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  • An external heat absorber structure for a tower photothermal power generation system
  • An external heat absorber structure for a tower photothermal power generation system
  • An external heat absorber structure for a tower photothermal power generation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] see figure 1 and figure 2 , an external heat absorber structure for a tower-type photothermal power generation system, including the light receiving surface of the first heat absorbing part 1001 and the second heat absorbing part 1002 is an arc surface, and the light receiving area of ​​the first heat absorbing part 1001 is larger than The second heat absorbing part 1002, the first heat absorbing part 1001 and the second heat absorbing part 1002 cooperate to form a heat absorber, and the heat absorber is arranged on the heat absorbing tower. When the tower-type photothermal power generation system is located in the northern hemisphere, the first heat absorbing part 1001 is a heat absorber on the north side, and the second heat-absorbing part 1002 is a heat absorber on the south side; when the tower-type photothermal power generation system is located in the southern hemisphere, the first The heat absorbing part 1001 is a south heat absorber, and the second heat absor...

Embodiment 2

[0047] This embodiment is further limited on the basis of Embodiment 1, and other parts are the same as or similar to Embodiment 1, and will not be repeated here.

[0048] see figure 1 and figure 2 , a heat absorber for a tower-type photothermal power generation system, the diameter of the first heat absorption part 1001 is larger than the diameter of the second heat absorption part 1002, and the light receiving height of the first heat absorption part 1001 is the same as that of the second heat absorption part 1002 The light-receiving heights are the same, the arc of the first heat absorbing portion 1001 is greater than 180°, and the arc of the second heat absorbing portion 1002 is equal to 180°.

Embodiment 3

[0050] This embodiment is further limited on the basis of Embodiment 1, and other parts are the same as or similar to Embodiment 1, and will not be repeated here.

[0051] see image 3 and Figure 4 , a heat absorber for a tower-type photothermal power generation system, the diameter of the first heat absorption part 1001 is larger than the diameter of the second heat absorption part 1002, and the light receiving height of the first heat absorption part 1001 is the same as that of the second heat absorption part 1002 The light-receiving height is the same, the arc of the first heat absorbing part 1001 and the second heat absorbing part 1002 are equal to 180°, and the center of the arc of the first heat absorbing part 1001 and the center of the arc of the second heat absorbing part 1002 are located at The heat absorption tower center 1003 , the first heat absorption part 1001 and the second heat absorption part 1002 are connected through a planar heat absorption panel 1005 . ...

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Abstract

The invention discloses an external heat absorber structure for a tower type photo-thermal power generation system. The external heat absorber structure comprises a first heat absorbing part and a second heat absorbing part, wherein the illuminated faces of the first heat absorbing part and the second heat absorbing part are curved surfaces, the illuminated area of the first heat absorbing part islarger than the illuminated area of the second heat absorbing part, the first heat absorbing part and the second heat absorbing part cooperate to form a heat absorber, and the heat absorber is disposed on a heat absorbing tower. When the tower type photo-thermal power generation system is located in the northern hemisphere, the first heat absorbing part is a north side heat absorber, and the second heat absorbing part is a south side heat absorber; and when the tower type photo-thermal power generation system is located in the southern hemisphere, the first heat absorbing part is a south sideheat absorber, and the second heat absorbing part is a north side heat absorber. When the heat absorber structure is designed to be with the illuminated area of the first heat absorbing part being larger than the illuminated area of the second heat absorbing part, more heliostats can be projected to the first heat absorbing part under the condition that the heat absorber has the maximum energy flow limit, that is, more heliostats can be arranged in a mirror field on one side of the first heat absorbing part so as to improve the optical efficiency of the mirror field, the utilization rate of the mirror field heliostats and the truncation efficiency of the heat absorber as much as possible.

Description

technical field [0001] The invention belongs to the field of solar thermal power generation, and in particular relates to an external heat absorber structure for a tower-type photothermal power generation system. Background technique [0002] The tower-type photothermal power generation system uses a mirror field composed of a large number of heliostats with an automatic tracking system to concentrate and reflect sunlight to a heat absorber installed at a certain height, heat the flowing working fluid in the heat absorber, and transfer the sun Radiation energy is converted into heat energy, which directly or indirectly generates high-temperature, high-pressure steam to drive a steam turbine to generate electricity. As one of the key equipment in the tower solar thermal power generation system, the heat absorber has a direct impact on the solar thermal efficiency and project investment cost of the tower solar thermal power generation system. A good structure type of the heat ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24S70/65
CPCY02E10/40
Inventor 李建华杨都堂宓霄凌薛刚强李晓波杨波
Owner ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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