Energy-saving drying and refrigerating system

Abstract

The invention relates to the technical field of drying and refrigerating, and discloses an energy-saving drying and refrigerating system. The energy-saving drying and refrigerating system comprises amaterial lifting and transporting system, a solar drying system and a heat pump waste heat enthalpy-increasing refrigerating system, wherein the solar drying system comprises a solar greenhouse as a material drying energy source, as well as a solar heat collector, a material conveyor, an equalizing fan, a dehumidifying fan, a sterilizer and the like; and the heat pump waste heat enthalpy-increasing refrigerating system is used for recovering the heat of dehumidification gas and the evaporation heat of a cold storage for preheating dry gas, and comprises a dehumidification device and a dehumidification evaporator for cooling and dehumidifying the dehumidification gas, a compressor for boosting and heating heat pump working medium steam, a condenser for exchanging heat between a heat pump working medium and the dry gas, and a cold storage evaporator for evaporating and absorbing heat from the cold storage. The energy-saving drying and refrigerating system provided by the invention can realize efficient drying and refrigeration as well as lower the cost. By means of the solar energy and the heat pump waste heat enthalpy-increasing refrigerating system, the energy utilization rate is increased, and the energy consumption is lowered.

Description

technical field [0001] The invention relates to the technical field of drying and refrigeration, in particular to an energy-saving drying and refrigeration system. Background technique [0002] The material drying process is an energy-intensive and high-energy-consuming process. In my country, the drying energy consumption accounts for about 12% of the entire industrial energy consumption. In some high-drying energy-consuming industries, the proportion of processing energy consumption is even higher. The environmental pollution caused by the drying process cannot be ignored. Among the conventional drying equipment currently used in the market, the moisture emission of the hot air drying equipment is the most polluting. Therefore, the energy saving and consumption reduction in the drying process has great potential for reducing the energy consumption of the whole industry. The heat pump dehumidification and drying technology recycles the sensible heat and latent heat in the ...

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Problems solved by technology

[0005] The embodiment of the present invention provides an energy-saving drying and refrigeration system, which is used to solve the problems of easy environmental pollution, high energy consumption, low energy utilization rate, and high operating cost in the existing material drying technology and refrigeration technology

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