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Fixed dot array solar Stirling power generating system

A power generation system and solar technology, applied in the field of solar energy utilization, can solve the problems of low solar energy collection efficiency, large scale, unsuitable for small or household systems, etc., to overcome the low collection time of solar energy, improve utilization time and efficiency, and improve tracking efficiency Effect

Inactive Publication Date: 2013-09-18
CHENGDU AONENGPU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The tower system is a solar Stirling generator system that uses a solar mirror as a heliostat and focuses multiple solar reflectors on a Stirling generator , due to the characteristics of tower solar energy collection, the use time of some solar mirrors in the tracking solar process is only 4-6 hours. For example, the solar mirrors on the east side of the tower are basically unusable in the morning, and can only be used after noon or afternoon Therefore, the efficiency of solar energy collection is low. This technical solution can realize high-temperature collection, but usually its scale is large, which is not suitable for small or household systems.
[0004] Usually the generating power of the Stirling generator is only 25KW, but the power of the solar energy generated by the tower system is far greater than this power, so it is impossible to directly apply the Stirling generator to the tower power generation system

Method used

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  • Fixed dot array solar Stirling power generating system
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  • Fixed dot array solar Stirling power generating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1: A fixed-point array solar Stirling machine power generation system composed of 4 solar mirrors and 3 Stirling generators

[0063] as attached figure 1 , 2 , the fixed-point array solar Stirling machine power generation system composed of 4 solar mirrors and 3 Stirling generators shown in 3, figure 1 , 2 , 3 are the collection and utilization of solar energy in the morning, noon and afternoon respectively, figure 1 In the morning, the sun rises from the east, and No. 1, 2, and 3 solar mirrors focus the solar energy on No. 1, 2, and 3 Stirling generators respectively to realize the tracking and focusing of solar energy; figure 2 At noon, the sun is located in the central area of ​​the sky, No. 1 and No. 4 solar mirrors focus the solar energy on No. 1 and No. 3 Stirling generators respectively, and No. 2 and No. 3 solar mirrors focus on No. 2 solar storage equipment to realize the tracking and focusing of solar energy; image 3 In the afternoon, when the...

Embodiment 2

[0064] Embodiment 2: A fixed-point array solar Stirling machine power generation system composed of 12 solar mirrors and 6 Stirling generators

[0065] This example Figure 4 The fixed-point array solar Stirling generator system shown is composed of 12 solar mirrors and 2 Stirling generators. The 12 solar mirrors are arranged in an array of three rows and four columns, and the two Stirling generators are arranged according to Arranged in an array of 2 columns, each column uses a Stirling generator set, and the Stirling generator conducts heat transfer through heat pipes, and each column uses an integral heat pipe, and each integral heat pipe has three evaporation ends and a condensation The condensing end and the condensing end are respectively set in the middle area of ​​the three rows of solar mirrors. The solar mirrors are focused in this area. The outside of the evaporating end of the heat pipe is coated with a solar conversion coating to convert solar energy into heat ene...

Embodiment 3

[0068] Embodiment 3: 1*3 parabolic fixed-point array solar tracking Stirling power generation system

[0069] as attached Figure 5 As shown, this embodiment adopts three parabolic dish solar mirrors (2), which are arranged on a parabolic connecting part, and each solar mirror is provided with two rotating shafts, that is, the horizontal axis and the vertical axis. The horizontal axis and the vertical axis intersect perpendicularly to form a system axis, and each solar mirror is connected to a parabolic connecting part through a system axis. This embodiment consists of three system axes arranged on the connecting parts and a support connected to the ground The solar mirror bracket, the connecting parts do not move, but the three system axes move, the solar tracking control device is set to connect with each system axis, and physical and optical sensors are set on each solar mirror (2), the solar tracking control device is The integrated electronic control device composed of m...

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Abstract

The invention relates to solar energy focusing utilization, in particular to a fixed dot array solar Stirling power generating system which is used for realizing solar energy collection by solar mirrors adopting dot focusing. The fixed dot array solar Stirling power generating system comprises at least one solar mirror or one group of solar mirrors adopting dot focusing, at least one Stirling power generator and a tracking control device, wherein the solar mirrors are arranged on a solar mirror bracket, the Stirling power generators are arranged in a dotted region focused by the solar mirrors and arranged above or below the solar mirrors, and the focus lengths of the solar mirrors vary in the solar tracking process and are always kept in the dotted regions of the Stirling power generators; and the sunlight is focused by the solar mirrors to at least one Stirling power generator under the control of the tracking control device when the sunlight varies, the Stirling power generators do not move with the solar mirrors in the solar tracking process of the solar mirrors, the Stirling power generators are kept static relative to the ground, and the tracking and focusing utilization of solar energy is realized.

Description

technical field [0001] The invention relates to the utilization of solar energy, in particular to the use of point-focused solar mirrors to realize solar energy collection, the use of solar point focus to realize the focusing and tracking Stirling power generation system of solar energy, and to the focus and utilization of solar energy. Background technique [0002] There are mainly two types of solar point focusing utilization technologies: tower type and butterfly type. The dish type system uses solar mirrors to focus on a Stirling generator. And the Stirling machine of the existing disc Stirling power generation technology moves with the change of the sunglasses, because the weight of the large Stirling machine will increase the load of the Stirling machine, which is not conducive to tracking, so the existing The disc Stirling machine technology needs improvement. [0003] The tower system is a solar Stirling machine power generation system that uses a solar mirror as a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G6/06F02G1/043G05D3/00
CPCY02E10/46
Inventor 李建民
Owner CHENGDU AONENGPU TECH
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