Solar heat pump drying room heating system

Abstract

The invention discloses a solar heat pump drying room heating system, which includes a solar evaporator device, a dehumidification waste heat recovery device and a baking room. The baking room is composed of a drying room and a hot air room, and the hot air room is divided into an air supply room by a partition board. , condensation chamber and return air chamber, the solar evaporator device is connected to the outer wall of the hot air chamber, the upper part of the solar evaporator device is provided with an evaporator assembly, the evaporator assembly is composed of a coil and an evaporation fin, and the coil is a multi-layer frame structure , the two groups of coils are connected end to end to form a closed tower structure, the evaporation fin is a wave-shaped sheet structure, and the dehumidification waste heat recovery device consists of a total heat exchanger, a return air duct, a dehumidification air duct, a dehumidification air duct and a shaft. It is composed of a flow fan, and the total heat exchanger is arranged in the box of the solar evaporator device. The invention can absorb solar energy and air heat energy from multiple angles and directions, effectively increase the heat absorption area of ​​the evaporation fins, reuse the heat, and has reasonable structure, energy saving and environmental protection, and strong practicability.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a heating system for a solar heat pump drying room. Background technique [0002] my country is rich in fruit and vegetable resources. With the increase of people's demand for high-quality convenience food and the rapid development of the export industry, the drying and processing of various fruits and vegetables such as grapes, apples, peppers, bamboo shoots, and shiitake mushrooms is becoming more and more popular. However, the storage, fresh-keeping, drying, grading and other post-harvest primary processing facilities in my country's current fruit and vegetable production areas are very simple, primitive methods, and backward technology, resulting in high post-harvest loss rates for farmers' stored grain, vegetables, and fruits. Hot air drying is the most widely used technology in fruit and vegetable drying. The drying room has simple facilities, low cost, and...

AI Technical Summary

Problems solved by technology

Heat pump technology is a new type of energy-saving cooling and heating technology. The heating system mainly based on solar direct heating and supplemented by air source heat pump has attracted more and more attention. Because the sun's azimuth and sun's altitude change with seasons and daytime changes, it causes problems such as unstable heating and low solar energy utilization efficiency.

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