Heat collection pipe adjustable supporting device of solar trough type heat collector

Abstract

The invention discloses a heat collection pipe adjustable supporting device of a solar trough type heat collector. A main support of the trough type heat collector is connected with a supporting fork; a heat collection pipe bracket cross beam is connected with the supporting fork through a bolt pin in the supporting fork and can rotate around the bolt pin to form a first rotational joint; a heat collection pipe bracket upright post is connected with the heat collection pipe bracket cross beam and a U-shaped bracket; a heat collection pipe supporting seat is connected with the U-shaped bracket and can rotate around a transverse adjusting screw to form a second rotational joint; an up-down slide block is arranged in the heat collection pipe supporting seat; the up-down position of the up-down slide block can be adjusted by adjusting a height adjusting bolt; and a heat collection pipe is positioned on the up-down slide block, and can move up and down along with the up-down slide block and move left and right along with the heat collection pipe supporting seat. The device is provided with two rotational joints which can rotate along with the expansion and extraction of the heat collection pipe and realize the accurate positioning of the heat collection pipe, so that the heat collection pipe is positioned on a trough type heat collector focal line all the time when working stably at a high temperature, and a good focusing effect is achieved.

Description

technical field [0001] The invention relates to an adjustable supporting device, in particular to an adjustable supporting device for a heat collecting tube of a solar trough heat collector. Background technique [0002] Solar trough heat collection uses a parabolic reflector to focus sunlight onto the heat collecting tube located on the focal line of the parabola. The heat collecting tube is equipped with a recyclable working medium, and the working medium is reheated to drive the steam turbine to generate electricity. [0003] In order to improve thermal efficiency, in addition to improving the reflectivity of the parabolic reflector, improving the surface accuracy of the parabolic glass, and ensuring that the trough collector accurately tracks the sun, it is also necessary to position the heat collecting tube as accurately as possible on the focal line of the trough parabolic collector superior. The trough parabolic collector supports the vacuum tube through the vacuum t...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: In actual work, due to the processing and installation errors of the main body structure of the heat collector, and the processing error of the heat collecting tube bracket, the existing technology will use the heat collecting tube It is very difficult to install and adjust to the focal line of the collector, causing light leakage and directly affecting the optical efficiency of the collector

There is no expansion joint between the heat collecting tubes that are welded together, and the existing heat collecting tube support cannot adapt to the thermal expansion and cold contraction deformation of the heat collecting tubes

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