An agricultural greenhouse temperature difference adjustment system

Abstract

An agricultural greenhouse temperature difference adjustment system, which relates to an agricultural greenhouse air temperature adjustment device, consists of a solar collector, a heat storage cylinder, a hot oil circulation pipe, an oil return circulation pipe, a hot air pipe, a return air pipe, a heat storage oil tank and a circulation oil pump The thermal oil outlet of the solar heat collector is connected to the thermal oil input interface of the heat exchange coil, and the oil return output interface of the heat exchange coil is connected to the oil return inlet connected to the solar heat collector through the oil return circulation pipe; The oil return circulation outlet of the thermal oil tank is connected to the rear end of the oil return circulation pipe, the thermal oil circulation inlet of the heat storage oil tank is connected to the heat oil circulation pipe, and the heat storage oil output port of the heat storage oil tank is connected to the inlet of the circulating oil pump. The outlet of the circulating oil pump is connected to the front end of the oil return circulation pipe; the hot air pipe is installed at the lower end of the heat storage cylinder, and the return air pipe is installed at the upper end of the heat storage cylinder. The invention utilizes the heat storage oil tank to cooperate with the heat storage cylinder to store solar heat, so that the heat release time of the heat storage wall is longer, and the temperature difference adjustment capability of the system is enhanced.

Description

technical field [0001] The invention relates to an agricultural production equipment, in particular to an agricultural greenhouse air temperature adjustment device. Background technique [0002] The agricultural greenhouse is a frame-covered structure with thermal insulation properties. Its appearance allows people to eat off-season vegetables and fruits. Generally, agricultural greenhouses use a bamboo structure or a steel structure frame, covered with one or more layers of thermal insulation plastic film, thus forming a greenhouse space. The outer film can well prevent the loss of carbon dioxide produced by the growth of vegetables inside, so that the shed has a good heat preservation effect. [0003] When there is sunshine during the day, the temperature in the agricultural greenhouse is very high, and at night, affected by the cooling of the environment, the temperature in the greenhouse is too low, and the temperature difference between day and night is large, which is...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to make up for the defect of the large temperature difference between day and night in the existing agricultural greenhouses, and provide an agricultural greenhouse temperature difference adjustment system, which stores the heat of solar energy in the heat accumulator when there is sunlight in the daytime, and when the temperature in the greenhouse drops at night , the heat accumulator gradually releases heat, reduces the cooling range in the greenhouse, reduces the temperature difference between day and night in the greenhouse, creates an environment conducive to the growth of fruits and vegetables, and improves the quality and output of fruits and vegetables

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