Solar greenhouse and heat pump combined drying system

Abstract

The invention relates to the field of solar greenhouses, in particular to a solar greenhouse and heat pump combined drying system. The solar greenhouse and heat pump combined drying system comprises an air source heat pump unit, a solar greenhouse body, an air supply pipeline, an air return pipeline and a temperature and humidity sensor; the air supply pipeline and the air return pipeline are communicated with the air source heat pump unit and the solar greenhouse body, and the temperature and humidity sensor is arranged on the solar greenhouse body. The solar greenhouse and heat pump combineddrying system has the advantages that data are transmitted to a controller by the temperature and humidity sensor, and winding and unwinding of a heat-insulating quilt as well as startup and stop ofheat pumps and fans are regulated automatically; through automatic control, the labor cost is reduced, and the drying efficiency is improved; when natural lighting is sufficient, the temperature and the humidity in the greenhouse body are proper, and accordingly, direct natural drying is realized; when the indoor temperature is low or the indoor humidity is high, the air source heat pump unit is used for forced drying.

Description

technical field [0001] The invention relates to the field of solar greenhouses, in particular to a combined drying system of solar greenhouses and heat pumps. Background technique [0002] The drying system usually requires lower humidity and higher temperature for the target, so as to shorten the drying time and improve the drying quality. At present, the commonly used drying methods include natural drying and mechanical hot air drying. Natural drying is easily restricted by the external weather, and there are problems such as long drying time and loss of nutrients. Although hot air drying can solve the problems of natural drying, it is difficult to popularize and apply it among individual farmers due to its high energy consumption. With the increasing market demand for drying products and the improvement of consumers' requirements for drying quality, it is more urgent for the drying industry to carry out technological innovation, and a clean, pollution-free and energy-ef...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a solar greenhouse and heat pump combined drying system to improve the problem of large temperature and humidity changes in the greenhouse in the prior art

Images