Fresnel dish type condenser and attitude setting method thereof

A concentrating mirror and dish-type technology, applied in the field of solar energy utilization, can solve the problems of production, transportation and installation difficulties, high cost investment, high production cost, etc., and achieve the effect of reducing the difficulty of installation and commissioning, reducing the cost of installation and commissioning, and saving the man-hours of installation and commissioning

Active Publication Date: 2018-10-02
SOUTHEAST UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another method is to use resin to make a high-precision base mold when making a parabolic reflective surface, and then paste a high-reflection film on the surface of the mold to make a parabolic reflective surface. This method is expensive to manufacture, and the weather resistance of the reflective film is poor. It is easy to age after soaking in rain and rotten candles
Both of the above two production processes require special manufacturing equipment, the processing is difficult and the cost is high, and it brings great difficulties to industrial production, transportation and installation
In addition, the rotating parabolic concentrator used in the traditional dish concentrator is a typical point focusing system, which makes the energy distribution on the focal plane too concentrated, causing the solar heat absorber to withstand high temperature thermal shock for a long time, and the heat absorber Susceptible to high thermal stress and cause heat sink deformation, failure

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fresnel dish type condenser and attitude setting method thereof
  • Fresnel dish type condenser and attitude setting method thereof
  • Fresnel dish type condenser and attitude setting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 , the present embodiment discloses a Fresnel dish condenser, comprising a group of sub-mirrors 1, the group of sub-mirrors 1 is seven centrally symmetrical annular distribution circles, and there are more than three sub-mirrors in each circle, and the sub-mirrors are A flat mirror, and all sub-mirrors focus to one position. The specifications of the sub-mirrors are uniform, using 204 square sub-mirrors with a side length of 150mm, of which, there are 10 sub-mirrors in the first circle with a radius of 320mm, 16 sub-mirrors in the second circle with a radius of 490mm, and 23 sub-mirrors in the third circle There are 29 sub-mirrors in the fourth circle with a radius of 830mm, 36 sub-mirrors in the fifth circle with a radius of 1000mm, 42 sub-mirrors in the sixth circle with a radius of 1170mm, and 48 sub-mirrors in the seventh circle. The radius is 1340mm.

Embodiment 2

[0034] This embodiment is made up of a plurality of planar sub-mirrors 1, and the reflective surfaces of all sub-mirrors are all in the same plane in the initial state, and the sub-mirrors are surrounded by a plurality of concentric circles, arranged in a centrally symmetrical ring array, and the condenser mirror is composed of 7 circles of sub-mirrors. Composition, sub-mirror specifications are uniform, using 204 square sub-mirrors with a side length of 150mm, of which, the first circle has 10 sub-mirrors with a radius of 320mm, the second circle has 16 sub-mirrors with a radius of 490mm, and the third circle has a total of 23 sub-mirrors with a radius of 660mm, the fourth circle has 29 sub-mirrors with a radius of 830mm, the fifth circle has 36 sub-mirrors with a radius of 1000mm, the sixth circle has 42 sub-mirrors with a radius of 1170mm, and the seventh circle has 48 sub-mirrors mirror with a radius of 1340mm.

[0035] Such as figure 2 , the structural diagram of a circ...

Embodiment 3

[0040] In this embodiment, the shape of the sub-mirror 1 is fan-shaped, and each circle of sub-mirrors is also arranged in a centrally symmetrical annular array. unanimous.

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

No PUM Login to view more

Abstract

The invention discloses a Fresnel dish type condenser. The condenser includes a main focusing shaft located at the center and more than one circle of sub-mirrors surrounding the main focusing shaft. More than one focusing ring is arranged outside the main focusing shaft. Each circle of the sub-mirrors is connected to a focusing ring. The reflective surfaces of the sub-mirrors are in the same planein an initial state. More than two concentric circles, which are arranged in a centrally symmetric circular array, are formed by the sub-mirrors. The invention also discloses an attitude setting method of the Fresnel dish type condenser. The sub-mirrors are adjusted to the same plane, attitude setting is performed on the sub-mirrors of the same circle by using a focusing rod in bulk, and the focusing rod is dismounted when the setting is finished. According to the invention, the production cost of manufacturing high-precision dish type paraboloid mirrors can be greatly reduced, uniform condensation and the adjustment of a condensation ratio and condensation area can be realized, debugging difficulty and working hours can be effectively reduced, and the production and installation can be industrialized.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a Fresnel dish condenser and a method for setting its attitude. Background technique [0002] Solar energy utilization technology is in a period of rapid development. In the solar concentrating system, according to the different concentrating methods, it is mainly divided into trough type, tower type and dish type. Compared with the other two methods, the dish type system has a small scale, a large concentration ratio, and high power generation efficiency. The system The structure is simple, the distribution is flexible, the site adaptability is good, it can be modularized to form a hybrid power generation system, no water source is required, and the development potential is large. It is a promising solar thermal utilization device. [0003] The traditional dish concentrating system uses a rotating parabolic concentrator to reflect the concentrated sunlight to t...

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
no application Login to view more
IPC IPC(8): F24S23/70F24S50/20
CPCY02E10/47
Inventor 匡荛李珂张超段梦凡袁瑀浩徐静文王凯丽
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap