Greenhouse-type double-heat-collecting double-heat-preserving solar-energy heat-pump drying device

Abstract

The invention provides a greenhouse-type double-heat-collecting double-heat-preserving solar-energy heat-pump drying device for drying materials by utilizing solar energy, which comprises a drying unit, a solar-energy heat-collecting unit, an auxiliary heating unit, a condensing and dehumidifying residual-heat recovering unit and an automatic monitoring control unit, wherein the solar-energy heat-collecting unit is formed by a self-heat-collecting unit and an outer heat-collecting unit, and the auxiliary heating unit is formed by a heat pump. Through the drying device, the utilization ratio of the solar energy is effectively improved, the instability of the solar energy is overcome, the continuity of the drying process is ensured, and the drying efficiency is improved. The drying and dewatering processes are clean, sanitary and energy-saving, and the defects of pollution, decoloring, deterioration and energy consumption caused by adopting the conventional sun insolation and the traditional energy-source drying of farm and sideline products and the like can be effectively overcome. The greenhouse-type double-heat-collecting double-heat-preserving solar-energy heat-pump drying device has positive significance for developing new energy sources, improving the processing quality of the farm and sideline products, promoting the recycling economy and protecting the ecological environment.

Description

technical field [0001] The invention belongs to the technical field of solar energy utilization, and relates to a greenhouse-type double heat collection and double heat preservation solar heat pump drying device for drying materials by using solar energy. Background technique [0002] Drying operations are widely used in many sectors of industrial and agricultural production. In agricultural and sideline product processing, food industry, chemical industry, pharmaceutical and other industries, in order to facilitate use, transportation and storage, many products must be dried and processed, which requires a huge amount of conventional equipment. energy. According to relevant data reports, the energy consumption used in industrial and agricultural production drying operations will account for 5%-10% of the total energy consumption of the national economy. Under normal circumstances, most of the drying methods for materials use conventional energy such as coal, fuel oil, and ...

AI Technical Summary

Problems solved by technology

The drying technology developed in recent years using solar energy as a heat source generally has problems such as low utilization rate of solar energy, low efficiency, long drying cycle, and large investment.

Such as the patent: solar medicinal material drying device (ZL200320105243.9) is composed of preheating room, drying room, preparation room, etc., solar drying device for seafood (ZL200820201812.2) is composed of glass room, seafood drying rack, Composed of dehumidification device, heat-absorbing floor, etc., the above-mentioned devices have problems such as single solar heat collection source, unsatisfactory heat collection effect, poor heat preservation effect, unable to guarantee continuous drying at night or in rainy days, and low degree of waste heat recovery and utilization.

Patent: New solar fruit drying room (200820105243.9) uses coal-fired hot air stove as an auxiliary heat source, consumes conventional energy, pollutes the environment, and does not conform to the development of low-carbon economy

Images