Single-ended u-channel solar medium temperature heat collector tube
A technology for solar energy and heat collecting tubes, applied in the field of heat collecting tubes, can solve the problems of difficult installation and disassembly of headers, large flow resistance of working medium, complicated processing, etc., and achieves the effect of convenient operation, maintenance and operation, ensuring reliability and improving thermal efficiency.
Active Publication Date: 2017-01-25
NANJING CHENGYUAN SOLAR HEATING +1
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Problems solved by technology
[0004] The structure of medium-temperature solar collector tubes generally adopts a straight-through structure with a concentric flat fin structure equipped with a corrugated tube, and an inner concentrating heat pipe with a U-shaped structure of flat fins. The common problem is that the disadvantage of the concentric flat fin structure is The light efficiency of the fin area is low, the flow resistance of the working medium is large, the structure of the manifold in the header is complicated, and the installation and disassembly of the header is difficult
However, if the metal bellows-containing head is applied to the medium-temperature heat collector tube, it is indeed a waste
[0009] The patent with the publication number CN103673353A is a medium-high temperature heat collecting tube. The water temperature difference at the junction of the tubes, but its processing is relatively complicated, and the heat absorption area is small
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[0030] The accompanying drawings disclose the structures of the embodiments of the present invention without limitation, and the present invention will be further described below in conjunction with the accompanying drawings.
[0031] Depend on figure 1 , figure 2 and image 3 Visible, the present invention comprises shell glass tube 3, heat-conducting tube 1, heat-absorbing fin 4, Kovar metal 2 and support 7, and the shell glass lumen 5 sealed by Kovar metal 2 is a vacuum sealed cavity, wherein, described The shell glass tube 3 is a glass tube with an open end; the heat pipe 4 is a U-shaped metal tube, and the U-shaped end of the heat pipe 4 is inserted into the open end of the shell glass tube 3 and supported by the bracket 7 in the shell glass lumen 5, the other end passes through the sealed Kovar metal 2 and protrudes out of the shell glass tube, and the U-shaped metal tube in the shell glass lumen 5 is provided with heat-absorbing fins 4 . In this embodiment, the heat...
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The invention relates to a single-end and U-shaped-passage solar mesothermal heat collection pipe, which comprises a shell glass pipe, a heat conduction pipe, a heat absorption fin, Kovar metal and a bracket, wherein a shell glass pipe cavity of which the open end is sealed by the Kovar metal is a vacuum sealed cavity. The single-end and U-shaped-passage solar mesothermal heat collection pipe is characterized in that the shell glass pipe is a glass pipe of which one end is open; the heat conduction pipe is a U-shaped metal pipe; the U-shaped end of the heat conduction pipe into which the open end of the shell glass pipe is inserted is supported in the shell glass pipe cavity through the bracket; the other end of the heat conduction pipe passes through the Kovar metal for sealing to extend out of the shell glass pipe; the U-shaped metal pipe in the shell glass pipe cavity is provided with the heat absorption fin. The single-end and U-shaped-passage solar mesothermal heat collection pipe is compact in structure and lower in manufacturing cost. The mutual connection, the operating maintenance and the operation are quite convenient.
Description
technical field [0001] The invention relates to a heat collecting tube, in particular to a medium-temperature vacuum heat collecting tube utilizing solar energy for heat collection. Background technique [0002] The heat pipe is a superconducting heat transfer element that relies on the phase change of its internal liquid working fluid to transfer heat. It has the advantages of high heat transfer coefficient, uniform temperature distribution, rapid thermal response, compact structure, reliable operation and energy saving. [0003] The heat collector tube is the key component of the solar collector, generally there are composite glass heat collector tubes, metal heat collector tubes, and glass and metal composite metal vacuum heat collector tubes. [0004] The structure of medium-temperature solar collector tubes generally adopts a straight-through structure with a concentric flat fin structure equipped with a corrugated tube, and an inner concentrating heat pipe with a U-sha...
Claims
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IPC IPC(8): F24J2/46
CPCY02E10/40
Inventor朱雷
OwnerNANJING CHENGYUAN SOLAR HEATING