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A coil type solar heat collector

A technology of solar heat collection and coil tubes, applied in the field of solar heat utilization, can solve the problems of complex structures of pipes and heat storage bodies, increased installation and maintenance costs, and low overall system efficiency, and achieves suitable for popularization and use, simple structure, The effect of improving the ease of assembly and disassembly

Active Publication Date: 2017-12-26
DATONG XINCHENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, this type of solar heat storage device is generally separated from the heat collector, resulting in a long heat transfer circuit, serious resistance and heat loss, and low overall system efficiency.
The heat storage collector that combines the solar heat storage device with the heat collection device has a compact structure, which is an effective solution. However, due to size constraints, the heat exchange length of a single straight tube is insufficient, and the heat exchange area is too large. Small size, the quality of the working fluid obtained by heating is low, and the use of up and down folded pipes results in complex structures of pipes and heat storage bodies, difficult installation and disassembly, and difficult maintenance, which increases the cost of manufacturing, installation and maintenance of the device

Method used

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  • A coil type solar heat collector
  • A coil type solar heat collector
  • A coil type solar heat collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] In this embodiment, the heat accumulator 8 is made of graphite, and its inner wall is coated with a selective absorption coating.

[0051] Such as figure 2 As shown, in this embodiment, the heat storage body 8 is formed by stacking the bottom heat storage body 1, at least one middle layer heat storage body 2, the top layer heat storage body 1 3 and the top layer heat storage body 2 4 from bottom to top . Such as image 3 As shown, the bottom heat storage body 1 is cylindrical; Figure 4 As shown, the middle layer heat storage body 2 is cylindrical, and is coaxially and equidiametrically arranged with the bottom heat storage body 1; as Figure 5 As shown, the top-layer regenerator 3 is cylindrical, and is coaxially and equidiametrically arranged with the bottom regenerator 1; as Figure 6 As shown, the top heat storage body 2 4 is cylindrical, and is coaxially and equidiametrically arranged with the bottom heat storage body 1 .

[0052] Therefore, the inner hollow ar...

Embodiment 2

[0058] Such as Figure 7 As shown, in this embodiment, the heat exchange coil 5 includes at least one side wall heat exchange tube 16, a top layer heat exchange tube 17 and an external connection tube 18; each side wall heat exchange tube 16 and the top layer heat exchange tube 17 are respectively connected to External connecting pipes 18 communicate with each other.

[0059] In this embodiment, the side wall heat exchange tubes 16 are respectively arranged at the contact surface of the adjacent middle layer heat storage body 2, or at the contact surface of the bottom heat storage body 1 and the adjacent middle layer heat storage body 2, Or at the contact surface between the bottom heat storage body 1 and the adjacent middle layer heat storage body 2 . In this embodiment, the lower end of the sidewall heat exchange tube 16 at the contact surface between the bottom heat storage body 1 and the adjacent middle layer heat storage body 2 , or the external connecting pipe 18 commun...

Embodiment 3

[0068] Such as Figure 10 and Figure 11 As shown, in this embodiment, adjacent side wall heat exchange tubes 16 are connected through corresponding external connecting pipes 18, and the topmost side wall heat exchange tube 16 is connected to the top layer heat exchange tube 17 through corresponding external connecting pipes 18. Pass.

[0069] In this embodiment, one end of the gap section of the outermost circular pipeline of each sidewall heat exchange tube 16 is connected to the innermost circular pipeline of the adjacent sidewall heat exchange tube 16 on the upper side through the corresponding external connecting pipe 18. One end of the notch section of each side wall heat exchange tube 16 is communicated with one end of the notch section; One end of the gap section of the inner circular pipe is connected; or the above two connection methods are arranged alternately, so that the flow direction of the medium in the adjacent side wall heat exchange tubes 16 is opposite. ...

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Abstract

A coil pipe type solar heat collection device comprises a shell (9). A heat accumulation body (8) composed of a stacking structure is arranged in the shell (9). A heat exchange coil pipe (5) is arranged in the heat accumulation body (8) in a penetrating manner. The two ends of the heat exchange coil pipe (5) are communicated with an outlet pipeline (6) and an inlet pipeline (11) respectively. According to the coil pipe type solar heat collection device, the heat accumulation body serves as a solar cavity absorber; the heat exchange area is large, and pipeline machining and arrangement are simple; and parameters of output work mediums are effectively improved while the problem that solar heat output is not stable is solved. The heat accumulation body is of the stacked structure, and the number of stacking layers can be flexibly designed according to the user requirement so that the requirements of heat collecting devices of different powers can be met. Meanwhile, the coil pipe type solar heat collection device is simple in structure, remarkable in effect and suitable for use and popularization.

Description

technical field [0001] The invention belongs to the technical field of solar heat utilization, and in particular relates to a coil type solar heat collecting device. Background technique [0002] As a renewable new energy source, solar energy has the advantages of being clean, environmentally friendly, sustainable, and long-lasting. my country's current energy development is an important direction, but due to a series of problems such as the discontinuity, instability and low energy density of solar radiation, it has brought great challenges to the stable operation of solar thermal utilization systems. The excess solar heat can be temporarily stored through the solar heat storage system, and released when there is no sunshine or insufficient sunshine, thus ensuring the safety and stability of the entire solar thermal utilization system. [0003] At present, this type of solar heat storage device is generally separated from the heat collection device, resulting in a long heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J2/24F24J2/34F24J2/30F24J2/46F24S10/30F24S10/70
CPCY02E10/44
Inventor 张培林俞自涛张良叶宛丽张培模张作文王涛王宇飞
Owner DATONG XINCHENG NEW MATERIAL CO LTD