Winter sunlight greenhouse dehumidification device and method

The invention discloses a winter sunlight greenhouse dehumidification device and method, and belongs to the technical field of agricultural engineering equipment. The device is mainly characterized in that change of temperature and humidity in a greenhouse is monitored in real time through a temperature and humidity sensor, corresponding dehumanization management modes are adopted, outdoor air inlet fresh air temperature is increased and relative humidity in the greenhouse is reduced through a total heat recovery heat exchanger, and then the goal of reducing air humidity without reducing temperature in the greenhouse in winter is achieved. By the adoption of the method, air humidity is reduced, it is guaranteed that temperature in the greenhouse is not reduced, and the requirement for normal growth of crops is met. The device is simple, low in cost and good in operation effect, energy consumption is mainly from electric energy consumption generated in the work process of a fan and an electric heater, and the device can save energy and is practical. According to the method, the temperature and the humidity in the greenhouse are monitored in real time, the monitoring process and the adjustment process are both fully controlled, complex manual operation is not needed, and labor force is greatly saved.