Heat recovery energy-saving device for ventilation and air exchange of agricultural greenhouse

Abstract

The invention discloses a heat recovery energy-saving device for ventilation and air exchange of an agricultural greenhouse, and relates to the field of agricultural greenhouses. The heat recovery energy-saving device for the ventilation and air exchange of the agricultural greenhouse comprises a greenhouse outer wall body, an air outlet cover, a dustproof net, an air inlet fan main body and an air outlet fan main body, wherein a sealing door is arranged on the front face of the greenhouse outer wall body, the left side of the greenhouse outer wall body is fixedly connected to an air inlet large pipeline, the right side of the greenhouse outer wall body is fixedly connected to an air outlet inserting pipe, and the air outlet insertion pipe is movably inserted into a pipe cavity of the air inlet large pipeline. When the heat recovery energy-saving device for the ventilation and air exchange of the agricultural greenhouse is used, heat exchange can be conducted at the mutual covering position between the air inlet large pipeline and the air outlet inserting pipe through the outer wall of the air outlet inserting pipe, finally when external air exchange is conducted on the greenhouse outer wall body, the condition that cold air of inlet air is not cold, hot air of outlet air is not hot is achieved, and heat recycling between cold air suction and hot air exhaust is ensured.

Description

technical field [0001] The invention relates to the technical field of agricultural greenhouses, in particular to a heat recovery and energy-saving device for ventilation of agricultural greenhouses. Background technique [0002] The greenhouse is a facility for planting plants. In seasons that are not suitable for plant growth, it can provide a greenhouse growth period and increase production. It is mostly used for planting or raising seedlings of temperature-loving vegetables, flowers, forest trees, etc. in low-temperature seasons. The design of the greenhouse system includes increasing Temperature system, insulation system, cooling system, ventilation system, control system, irrigation system, etc. The greenhouse is just a simple plastic film and skeleton structure, and its internal facilities are few. It is not as demanding as the greenhouse. The greenhouse has higher requirements than the greenhouse equipment. More advanced instruments are needed to strictly control the...

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Problems solved by technology

[0003] In the prior art, even an agricultural greenhouse needs to exchange air regularly inside and outside, otherwise it will lead to changes in the content of various gas components in the air in the internal closed space, resulting in the inability of the plants to perform normal photosynthesis and respiration, and the air exchange is carried out. At present, most greenhouses are not equipped with heat recovery and energy-saving devices for ventilation, which directly leads to the low temperature of the air sucked in from the outside and the high temperature of the discharged air, resulting in energy waste. Plants at the end are affected by freezing, yield reduction or freezing to death, and the air entering from the outside may also contain relatively large impurities and dust, which may block the inside of the pipeline or the opening of the pipeline, and the internal impurities are also inconvenient to clean, resulting in poor ventilation performance. In order to solve the above-mentioned problems

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