All-glass vacuum medium-high temperature heat collecting tube
A medium-high temperature collector tube, all-glass technology, applied in the field of solar collector tubes, can solve the problems of low utilization rate of solar heat, high cost of collector tube products, insufficient utilization of lighting area, etc. The effect of reducing heat collection cost and product cost
Pending Publication Date: 2021-09-17
杨会荣
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Problems solved by technology
The metal tube used for the inner tube can avoid the cracking of the tube body due to thermal expansion, but the cost of the heat collecting tube product is higher
In addition, the limited lighting area of the solar collector tubes currently used in medium and high temperature conditions cannot be fully utilized, resulting in low heat utilization efficiency of solar energy.
Method used
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[0027] In order to make the object, technical solution and beneficial effect of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to these set forth embodiments; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.
[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "front", "rear" etc. are based on the Orientation or positional relationship is only for the convenience of des...
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The invention provides an all-glass vacuum medium-high temperature heat collecting tube, and relates to the technical field of solar heat collecting tubes. The all-glass vacuum medium-high temperature heat collecting tube comprises an outer tube, an inner tube, a finned tube and an end cover. The all-glass vacuum medium-high temperature heat collecting tube can be applied to medium-high temperature working conditions, the inner tube and the outer tube are made of glass, and the product cost is greatly reduced; under the medium-high temperature working conditions, the inner tube is extruded by extension deformation generated by heating of a tube body, and the inner tube with a wavy structure shrinks to buffer the extension deformation, so that tube body breakage caused by expansion of the tube body is avoided; and under the condition that the size of the outer tube is kept unchanged, the inner tube is of the wavy structure, the light receiving area of the inner tube can be increased, the lighting area can be fully utilized, the heat utilization rate of solar energy is remarkably improved, the heat collection cost is reduced, and the heat collecting tube is applied to a heat collecting system to further improve the heat collecting efficiency of the heat collecting system within the effective working temperature.
Description
technical field [0001] The invention relates to the technical field of solar heat collecting tubes, in particular to a high-temperature heat collecting tube in an all-glass vacuum. Background technique [0002] At present, solar collector tubes have been developed for more than 30 years and are widely used in solar thermal utilization. Solar collector tubes are generally designed as double-layer tubes (outer tube and inner tube). According to the opening mode, the solar collector tube is divided into a single-end opening mode and a two-end opening mode. Among them, the solar collector tube with a single-ended opening is generally used in medium and low temperature conditions, and its outer tube and inner tube can both be made of glass tubes to reduce the cost of the collector tube product. Solar heat collector tubes with openings at both ends are generally used in medium and high temperature conditions. The outer tube is generally made of glass tubes, and the inner tube is...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24S10/40F24S10/70F24S70/10F24S40/46F24S70/225F24S70/60
CPCF24S10/40F24S10/70F24S70/10F24S40/46F24S70/225F24S70/60Y02E10/44
Inventor 杨会荣贾志强
Owner 杨会荣