Constant-temperature greenhouse

Abstract

The invention discloses a constant-temperature greenhouse. The constant-temperature house maintains the constant temperature and ventilation of the greenhouse through utilizing renewable geothermal energy, a heat recovery technology and an inflatable and deflatable double-layer insulation film. The constant-temperature greenhouse comprises polyethylene (PE) heat exchange tubes, a water tank, a water pump, a fresh air ventilator, the inflatable and deflatable double-layer insulation film and a temperature probe, wherein the water tank is used for supplementing water for the PE heat exchange tubes; the water pump is used for promoting the water circulation in the PE heat exchange tubes so as to bring the energy of a constant-temperature underground layer to a superficial ground, so that the ground is kept at constant temperature; the fresh air ventilator is used for supplementing fresh air into the constant-temperature greenhouse, recycling the energy of the constant-temperature greenhouse and maintaining a required environment for plant growth; the inflatable and deflatable double-layer insulation film is filled with dry air or deflated through inflation and deflation ports, the inflated double-layer insulation film is used for keeping the temperature of the constant-temperature greenhouse, and the deflated double-layer insulation film is used for absorbing the heat of the constant-temperature greenhouse; and the temperature probe is used for detecting the temperature inside and outside the constant-temperature greenhouse, judging the internal and external temperature difference condition and determining the inflation, deflation and fresh air quantity.

Description

technical field [0001] The invention relates to an energy-saving greenhouse and belongs to the technical field of agricultural greenhouses. Background technique [0002] The greenhouse was originally a special equipment for vegetable production. With the development of production, the application of greenhouses has become more and more extensive. At present, the greenhouse has been used for potted and cut flower cultivation, fruit tree production, forestry production, aquaculture, etc. [0003] Existing greenhouses generally have heating difficulties or high heating costs, lack of sufficient fresh air for heat preservation, slow plant growth, and unsatisfactory economic benefits. Although some greenhouses are equipped with forced ventilation equipment, the energy loss is serious; some big pengs are covered with insulation materials at night, but the labor cost is relatively high for opening and covering every day; some big pengs use double-layer plastic film, It has a good...

AI Technical Summary

Problems solved by technology

[0003] Existing greenhouses generally have heating difficulties or high heating costs, and there is not enough fresh air for heat preservation, the plants grow slowly, and the economic benefits are not ideal

Although some greenhouses are equipped with forced ventilation equipment, the energy loss is serious; some big pengs are covered with insulation materials at night, but the labor cost is relatively high for opening and covering every day; some big pengs use double-layer plastic film, It has a good heat preservation effect, but it also isolates a part of the energy, and cannot be adjusted according to the temperature difference between the inside and outside of the greenhouse.

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