Fixing method and structure of heat absorber of a linear Fresnel heat collector
A linear Fresnel and heat collecting device technology, applied in the direction of solar heat collectors, solar heat collector safety, solar heat collector parts, etc., can solve problems such as inconvenient cleaning, reduce land occupation and improve land use. The effect of utilization
Active Publication Date: 2018-12-25
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology
[0007] In order to overcome the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of linear Fresnel heat collector heat absorber fixation method and structure, solve the linear Fresnel heat collector system heat absorber fixation structure to the cleaning bring Inconvenient question
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[0018] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0019] Such as figure 1 As shown, the existing linear Fresnel heat collection device includes a heat absorber 1 and a primary reflector 3, which are installed above the heat absorber column 2 and the primary reflector column 4 respectively. Because the position of the heat absorber 1 is relatively high, in order to improve the stability of the heat absorber 1 , a cable 5 is installed between the heat absorber 1 and the column 4 of the primary reflector. The stay cables 5 are installed vertically to the length direction of the heat collector, and one group is installed every 3-6 meters. The existing fixing scheme of the heat absorber is not conducive to the cleaning of the primary reflector at the edge of the heat collector and the heat absorber, and the drag cable 5 will hinder the walking of the cleaning vehicle.
[0020] figure 2 It is the...
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The invention discloses a fixing method and structure for heat absorbers of linear Fresnel heat collection devices and belongs to the field of solar thermal power generation. Each heat collection device comprises one heat absorber and a primary reflection mirror field comprising primary reflection mirrors, the adjacent two heat collection devices in the same direction are set as one group, the fixing structure comprises a dragging cable between the heat absorbers and primary reflection mirror stand column dragging cables, the dragging cable between the heat absorbers is used for connecting the heat absorbers in the group and is perpendicular to the length direction of the heat collection devices, and each primary reflection mirror stand column dragging cable is used for connecting the heat absorber with a nearer one of primary reflection mirror stand columns on two sides of the group of heat collection devices. According to the fixing method and structure, complete dragging cables from the stand columns on the two sides of the two heat collection devices to the heat absorbers are formed, the heat absorbers are fixed, and the fixing height of the primary reflection mirror stand column dragging cables is increased, so that a mirror surface cleaning device can clean reflection mirror arrays adjacent to the stand columns; by the aid of the horizontal dragging cable between the heat absorbers in the group, the influence of an inclined dragging cable on maintenance work of a cleaning vehicle and a maintenance vehicle is avoided; and the adjacent groups has a relatively narrow interval, and thus the utilization rate of land is increased.
Description
technical field [0001] The invention belongs to the technical field of solar thermal power generation, and in particular relates to a method and structure for fixing a heat absorber of a linear Fresnel heat collecting device. Background technique [0002] Solar thermal power generation technology uses concentrators to gather solar energy and convert it into heat energy, and then generate high-temperature and high-pressure steam to drive steam turbines to generate electricity. [0003] Linear Fresnel-type solar concentrating thermal power generation technology is a common form of solar thermal power generation at present. The primary reflector mirror field composed of multi-faceted linear reflectors converges the sunlight into a linear spot, and then uses the receiver to pass The heat transfer fluid absorbs the high temperature generated by the light and transfers it to the heat exchanger. In the heat exchanger, the heat of the heat transfer fluid is used to heat the water t...
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IPC IPC(8): F24S23/77F24S80/00
CPCF24S23/77F24S40/20F24S2023/872Y02E10/40
Inventor 徐海卫许世森郑建涛徐越裴杰刘明义曹传钊李晴
Owner HUANENG CLEAN ENERGY RES INST