Ventilating dehumidifier for greenhouse

Abstract

The invention pertains to the field of agricultural machinery, in particular to a mechanical ventilation dehumidifier used for plastic houses and greenhouses, which consists of air supply fans, air supply channels, a control device, a testing device and exhaust fans. Heaters are arranged in the air supply channels; the control device consists of switching groups, single board computers or control machines; the testing device comprises a thermometer, a hygrometer and a carbon dioxide analyzer; the heaters take fiber material as a heating body; the air supply fans and the exhaust fans use switched reluctance motors. By using sunlight shed chambers that are generally used at present, adopting advanced carbon fiber material as the heating body and being driven by switched reluctance motors with high efficiency and energy saving, the invention can realize double-machine synchronization, so as to achieve the purposes of energy saving with high heat efficiency, stability, reliability, and being free of maintenance, thus being capable of adjusting indoor humidity and air conditions. The invention can be broadly applied to sunlight sheds and livestock and poultry greenhouses.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, in particular to a ventilating and dehumidifying machine for plastic greenhouses and greenhouses, and a greenhouse ventilating and dehumidifying machine. technical background [0002] At present, greenhouse vegetable production in northern my country is developing rapidly. Vegetable plastic greenhouses and livestock and poultry flower greenhouses are the most important production facilities. Due to the long period of low temperature in winter in the north (about 5 months) and the large temperature difference between day and night (15°C-20°C), the existing sunlight-type greenhouses are due to factors such as evaporation of irrigation water, evaporation of water on plant leaves, and condensation of indoor and outdoor temperature differences. Make the temperature and humidity in the shed stay high for a long time. Among them, the situation of humidity > 85% is very common. Moreover, the a...

AI Technical Summary

Problems solved by technology

At present, most of the agricultural sheds in China can only solve the problem of light and heat preservation in winter production due to economic constraints.

Because crops are afraid of low temperature and freezing damage, they cannot be ventilated normally, and the humidity and air environment in the shed are very poor, which can easily cause crops, livestock, poultry, and flower diseases, affecting their normal growth and development

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