A greenhouse solar heat collection system and method

A solar heat collection and greenhouse technology, applied in the field of solar energy utilization, can solve the problems of unfavorable promotion of ground source heat pump technology, increase of greenhouse construction earthwork, increase of project cost, etc., to promote photosynthesis, facilitate installation and later maintenance, and save construction and maintenance cost effects

Active Publication Date: 2022-05-20
JIANGSU UNIV
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  • Claims
  • Application Information

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Problems solved by technology

An average depth of 30-60 cm needs to be dug under the greenhouse. Once the greenhouse covers a large area, the construction earthwork of the greenhouse will be doubled and the project cost will be increased.
In addition, if the pipeline system fails later, the entire pipeline system needs to be excavated for repair and replacement, and repeated land construction projects are time-consuming, laborious and money-consuming, which is not conducive to the promotion of ground source heat pump technology in greenhouses

Method used

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  • A greenhouse solar heat collection system and method
  • A greenhouse solar heat collection system and method
  • A greenhouse solar heat collection system and method

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Embodiment

[0042] Double-layer transparent glass plates 2 arranged up and down are arranged on the roof, and the flow channel of the working fluid 15 is between the two glass plates 2 to prevent shading. The glass plate 2 runs east-west, and is set at a certain angle with the horizontal plane to absorb as much solar radiation as possible. Set up a cooling system under the greenhouse soil layer. Using water as the working medium, the working medium 15 is sent to the roof double-layer glass plate 2 through the water pump 8 during work, so that the working medium 15 passes through the entire roof, absorbs solar radiation, and takes away excess heat, and the temperature of the working medium 15 rises from the roof After the double-layer glass plate 2 flows out, it enters the soil heat dissipation system; the sleeve assembly 6 used in the soil layer is in the form of upper and lower sleeves, which is convenient for installation and later maintenance, and the pipes are compact, and more pipes ...

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Abstract

The invention discloses a greenhouse solar heat collection system and method, which relate to the field of solar energy and include glass plates, pipes and casing components; a double-layer glass plate with a certain inclination angle is arranged above the greenhouse, and working fluid flows from between the glass plates to the The pipeline is respectively connected to the heat exchange sleeve assembly and the external pipe of the greenhouse through a three-way valve; the heat exchange sleeve assembly is arranged in the soil. The invention can save a large amount of land area, has good light transmittance, and does not affect the photosynthesis of crops while collecting solar heat; at the same time, the heat exchange of the working fluid to the soil can be realized by setting the heat exchange sleeve assembly, which fully utilizes the Solar energy resources reduce the operating costs of the greenhouse in summer and winter.

Description

technical field [0001] The invention belongs to the field of solar energy utilization, and in particular relates to a solar heat collection system and method arranged on the roof of a greenhouse. Background technique [0002] In recent years, the ways of using solar energy in greenhouses have gradually increased. Among them, the first way is: arrange in the open space outside the greenhouse, occupy a large amount of land area, and increase the distance of heat source transmission; the second way is: use the heat-absorbing surface coated with blue titanium film Solar vacuum tube collectors are arranged on the back roof, which is easy to damage the waterproofing of the back wall and the back roof. At the same time, it exceeds the height of the greenhouse roof ridge, which affects the light transmittance of the greenhouse and causes shading, widens the distance between the greenhouses, and reduces land use. At the same time, the tube explosion will occur; the third method is: u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24S10/50F24S20/20F24S20/67F24S80/20F24S80/30F24S80/70F24F5/00A01G9/24
CPCF24S10/50F24S20/20F24S20/67F24S80/20F24S80/30F24S80/70F24F5/0046A01G9/243Y02A30/272Y02E10/44Y02B10/20
Inventor 张川倪雨欣闫浩芳张文程周俊安
Owner JIANGSU UNIV
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