Solar constant-temperature greenhouse adopting inorganic hydrous salt composite phase change material for heat accumulation

Abstract

The invention relates to a solar constant-temperature greenhouse adopting an inorganic hydrous salt composite phase change material for heat accumulation. The solar constant-temperature greenhouse comprises a sunlight greenhouse main body structure, wherein the sunlight greenhouse main body structure comprises a cover material, a skeleton structure and an inorganic hydrous salt composite phase change material heat accumulator which is arranged on a suspension bracket. The solar constant-temperature greenhouse has the beneficial effects as follows: the inorganic hydrous salt composite phase change material is arranged, absorbs heat in the daytime and stores the heat in the phase change material heat accumulator, and the phase change material heat accumulator releases heat to the interior of the greenhouse when the air temperature in the greenhouse is low at night, is high in heat accumulation capacity, small in size and pollution-free and can solve the problem of too low temperature in the greenhouse at night; compared with conventional heating equipment for solving the problem of low temperature in the greenhouse, the phase change material heat accumulator does not consume fuel, is low in cost and has no environmental pollution; with the adoption of the inorganic hydrous salt composite phase change material, illumination for crops cannot be shaded, and actual utilization area of the greenhouse cannot be occupied.

Description

technical field [0001] The invention belongs to the technical field of facility agricultural engineering, and in particular relates to an inorganic hydrated salt composite phase change material heat storage and constant temperature solar greenhouse. Background technique [0002] In recent years, my country's facility agriculture has developed rapidly and has become an important means to increase farmers' income. The solar greenhouse is the most widely used type of facility in the northern region. However, the outdoor temperature at night in the northern region is very low. If there is no heating equipment, the temperature in the indoor greenhouse will also be low, which will affect the normal growth of crops. The use of conventional energy sources for heating results in a large amount of energy consumption and an increase in costs. How to ensure that the indoor temperature of the solar greenhouse at night is not lower than the normal growth temperature of the crops, and at...

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Problems solved by technology

[0004] In solar greenhouses for agricultural production, except that phase change materials are used as a building material in the construction of national protection structures such as thick walls of greenhouses, there is still little research on other aspects, and because the combination of phase change materials and building materials requires certain Therefore, the application of phase change materials in solar greenhouses is currently relatively lacking, and the technology is not mature enough.

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