Spiral solar heat collecting pipe

The invention relates to a solar collector tube and a technology for collector tubes, which are applied in the field of solar collectors and can solve problems such as uneven heating of the solar collector tubes, and achieve the effects of small rotation resistance, uniform heating and high heating efficiency.

Inactive Publication Date: 2018-04-13
韦治东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a spiral solar heat collecting tube to solve the problem of uneven heating of the upper and lower parts and axial sections of the existing solar heat collecting tube

Method used

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  • Spiral solar heat collecting pipe
  • Spiral solar heat collecting pipe

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Embodiment Construction

[0011] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0012] Such as figure 1 , figure 2 The spiral solar heat collecting tube shown includes a circular glass heat collecting tube, the tube wall of the heat collecting tube is a vacuum-tight tube wall of double-layer glass with a spectrally selective coating 2 inside, the outer tube wall 1 and the inner tube wall 3 Sealed to form a vacuum tube wall, both ends of the heat collecting tube are open, and the two ends can be directly connected to the water pipe; there are multiple rotating parts in the axial direction of the heat collecting tube, and each rotating part includes a transparent resin that is arranged axially with the heat collecting tube. Round rod 4, round rod 4 is evenly provided with threaded section 5 of transparent resin in the radial direction; diameter b of round rod 4 is less than 2% of the inner diameter a of the heat collecting tub...

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Abstract

The invention discloses a spiral solar heat collecting pipe, which comprises a circular glass heat collecting pipe. A pipe wall of the heat collecting pipe is a double-paned vacuum seal pipe wall internally provided with a spectral selectivity coating; two ends of the heat collecting pipe are opened; a plurality of spiral pieces are sequentially arranged in an axial direction in the heat collecting pipe; each spiral piece comprises a circular rod arranged axial to the heat collecting pipe and made of a transparent resin; threaded sections made of transparent resins are uniformly arranged on aradial direction of each circular rod; the diameter of each circular rod is smaller than two percent of the inner diameter of the heat collecting pipe; and when water in the heat collecting pipe is heated to flow, the water flow produces a pressure for driving the rotation pieces to rotate so as to drive the water in the heat collecting pipe to flow in a radial direction and an axial direction atthe same time. The spiral solar heat collecting pipe provided by the invention can solve the problem that the upper part, the lower part, and various sections in the axial direction of an existing solar heat collecting pipe are heated non-uniformly.

Description

technical field [0001] The invention relates to the technical field of solar heat collection, in particular to a vacuum heat collection tube for collecting solar energy. Background technique [0002] Existing vacuum heat collecting tubes for collecting solar energy generally include a circular glass heat collecting tube, the tube wall of the heat collecting tube is a vacuum glass double-layer tube wall with a spectrally selective coating inside, and one end of the heat collecting tube is open, and the coating can be Selectively absorbs the solar spectrum to maximize the absorption of solar radiation energy. After being irradiated by sunlight, photons hit the coating, and the solar energy is converted into heat energy. The water absorbs heat from the outside of the coating, the temperature of the water rises, the density decreases, and the hot water moves upward, while the cold water with a large specificity drops, so the water temperature in the upper part of the heat collec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24S10/75F24S10/40
CPCY02E10/44
Inventor 韦治东
Owner 韦治东
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