A linear Fresnel heat absorber structure with secondary concentration
A linear Fresnel and secondary concentrating technology, applied in the direction of solar collectors, solar thermal energy, solar ray concentration, etc., can solve the damage of secondary reflectors, reduce the efficiency of secondary concentrating light, and affect the surface of secondary reflectors Shape accuracy and other issues to achieve the effect of avoiding damage
Active Publication Date: 2018-03-06
HUANENG CLEAN ENERGY RES INST
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
If there is not enough expansion space left on the installation structure, it will affect the surface shape accuracy of the secondary reflector, reduce the secondary light-gathering efficiency, and seriously may cause damage to the secondary reflector
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0023] figure 1 It is a linear Fresnel heat absorber structure for secondary light concentrating in the present invention, including a heat absorber frame 1, a heat collecting tube 2, a heat collecting tube suspender 31, a secondary reflector 4 and a secondary reflector suspender 5, etc. The heat pipe 2 is suspended on the heat absorber frame 1 through the heat collecting pipe suspender 31, the secondary reflector 4 is a symmetrical structure, the two sides are compound parabolic surfaces, the central position has a Π-shaped protrusion 41, and the secondary edge 42 is bent , is connected to the heat sink frame 1 through the central Π-shaped protrusion 41 and the edge 42 bends, the middle fixed position keeps the secondary reflector 4 and the heat sink frame 1 relatively fixed, and the remaining connection positions provide the secondary reflecto...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a linear Fresnel heat absorber structure for secondary light condensation. The linear Fresnel heat absorber structure comprises a heat absorber framework and a secondary reflection mirror. A heat collection pipe is suspended to the heat absorber framework through a heat collection pipe hanging and supporting structure, the heat collection pipe hanging and supporting structure provides an expansion deformation space for the heat collection pipe, the secondary reflection mirror is of a symmetrical structure, the two sides of the secondary reflection mirror are in compound parabolic surface shapes, the center of the secondary reflection mirror is provided with an II-shaped protrusion, the edges are bent, the secondary reflection mirror is connected with the heat absorber framework through the II-shaped protrusion and the edges, at the middle fixed position, relative fixation of the secondary reflection mirror and the heat absorber framework is maintained, and other connection positions provide the heated expansion deformation space of the secondary reflection mirror. By means of the linear Fresnel heat absorber structure, reasonable deformation of the heat collection pipe and the secondary reflection mirror can be tolerated, the middle of the secondary reflection mirror made of metal is pressed with a die to generate the II-shaped protrusion, strength of the secondary reflection mirror in the length direction is reinforced, after the secondary reflection mirror is fixed at the position of the II-shaped protrusion, the surface shape of the secondary reflection mirror can be well controlled, and meanwhile a similar structure is proposed to fix the secondary reflection mirror made of glass.
Description
technical field [0001] The invention belongs to the technical field of solar thermal power generation, and in particular relates to a linear Fresnel heat absorber structure for secondary concentration. 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 mirror field composed of multi-faceted linear mirrors converges the sunlight into a linear spot, and then uses the receiver to pass through the heat transfer fluid. The high temperature generated by the light is absorbed and transferred to the heat exchanger. In the heat exchanger, the heat of the heat transfer fluid is used to heat the water to generate water vapor, a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F24S23/70
CPCY02E10/40
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