Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Surface shape calibrating method of spherical surface sun heliostat

A calibration method and heliostat technology, applied in the testing, measuring devices, instruments, etc. of machines/structural components, can solve problems such as heavy workload, and achieve the effect of an efficient calibration method

Inactive Publication Date: 2008-11-12
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If regular calibration of the surface shape of the heliostat is required, the workload will be even greater

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
  • Surface shape calibrating method of spherical surface sun heliostat
  • Surface shape calibrating method of spherical surface sun heliostat
  • Surface shape calibrating method of spherical surface sun heliostat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment of the present invention is 64m 2 The spherical heliostat, the spherical radius R is 600m, and the artificial light source is a xenon lamp with a light exit diameter of 150mm.

[0035] The structure of the heliostat is as figure 1 As shown, the heliostat includes a reflector, a support frame 2 , a transmission system 3 and a tracking control system, and the transmission system 3 connects the support frame 2 and the column 4 . The transmission system 3 realizes fixed-day tracking through the horizontal-tilt dual-axis rotation tracking method. The overall reflection surface of the heliostat is a spherical surface, and the actual reflection surface shape is composed of 16 spherical sub-mirrors 1 of 2m×2m. Each sub-mirror 1 has the same surface shape as the overall spherical surface. Each sub-mirror passes through a single-poin...

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 present invention provides a spherical heliostat profile calibration method comprising the steps of placing an artificial light source (34) in the centre of the heliostat with the direction determined for emitting divergent beams that are approximately homocentric with the heliostat to cover the aperture of the heliostat; observing the light source imaging position on the reflecting surface of the heliostat through eyes or a telescope (36) using a position near the light source as an observing position; adjusting the incline angle of a sub-mirror (1) relative to a reference plane (32) by using a supporting mechanism of the sub-mirror to a proper angle at which the light source imaging occurs in the center area of the sub-mirror; adjusting all the incline angles of the sub-mirrors according to the prior step to complete the surface shape calibration of the whole heliostat. The method having no special requirement of surface planeness and profile error in the present invention is simple to perform and has a high efficiency. And heliostats can also be adjusted and calibrated at night by using the method.

Description

technical field [0001] The invention relates to a method for calibrating the surface shape of a heliostat by using an artificial light source, in particular to a method for calibrating the surface shape of a heliostat with a spherical reflective surface. Background technique [0002] The heliostat is a concentrating device in a solar tower concentrating system, which reflects and concentrates sunlight to a fixed target through a tracking mechanism. Heliostats include five major parts, including reflectors, support frames, columns, transmission and tracking control systems. [0003] Generally, the overall reflective surface of the heliostat is designed as a spherical surface or an approximate spherical surface. In practical applications, the reflective surface of a large heliostat is composed of several sub-mirrors. Each sub-mirror is installed on the support frame through a single point at the center of the mirror or a multi-point support mechanism at the edge of the mirro...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02G01M11/00G01B11/00G02B7/183G02B7/185
Inventor 郭明焕刘晓冰王志峰王晓宇张喜良梁文峰刘鸿孙刚
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com