Multifunctional heat pump drying and dehumidifying fresh-keeping equipment

Abstract

The invention discloses multifunctional heat pump drying and dehumidifying fresh-keeping equipment. The equipment comprises a first cavity and a second cavity, wherein the first cavity which are used for communicating with a material processing and storage space to form a closed space comprises an evaporator used for refrigerating and condensing and dehumidifying, a radiator used for heating treatment, a fan used for promoting circulation air in the closed space to flow, and a temperature and humidity sensing transmitter used for detecting the temperature / humidity; the second cavity comprises an evaporation condenser for carrying out energy lifting and conversion on the evaporator and the radiator in the first cavity, a compressor used for providing energy conversion for work, and the like. According to the equipment, the drying function of a traditional dryer is achieved, closed low-temperature drying, dehumidifying and drying, normal temperature drying, and cold storage and fresh keeping of processed materials is realized through the independent evaporator arranged in the first cavity, and in addition, through cooperation of the radiator and the evaporator arranged in the first cavity, condensation dehumidification and cold and hot energy conversion can be realized while heating and drying can be realized, and energy zero loss is basically realized.

Description

technical field [0001] The invention relates to applications in the fields of high / low temperature drying, constant temperature and constant humidity drying, non-oxidative drying, non-browning drying, non-pollution airtight drying, cold storage, condensation dehumidification, normal temperature dehumidification and air drying, etc., and specifically relates to a multifunctional Heat pump drying and fresh-keeping equipment. Background technique [0002] The heat pump dryer is a kind of energy conversion lifting device, which uses the reverse Carnot principle to heat the air in the drying room and transfer it to the material to be dried. It is mainly used in medicine, agricultural and sideline products, meat products, fruit preserves, wood, Drying and dehydration process of industrial products, etc. However, at present, the function of heat pump dryer is relatively single, limited to heating, and the reduction of humidity is still based on the principle of dehumidification, s...

AI Technical Summary

Problems solved by technology

However, at present, the function of heat pump dryer is relatively single, limited to heating, and the reduction of humidity is still based on the principle of dehumidification, supplementary air, and the addition of a full heat exchanger for heat recovery; this drying process cannot avoid the air from the external environment during product processing. Pollution, and it is more difficult to meet the process production requirements of high-quality products. For example, many materials need to isolate the processed products from oxygen during the drying process, and prevent the products from contacting oxygen to cause oxidative browning. Examples include: well-known matsutake dry slices This is the case for dried mushrooms. When matsutake and other fungi are sliced ​​with a porcelain knife (high-grade fungi cannot be sliced ​​with a metal knife), they are placed in the air and exposed to oxygen for a period of time. After a period of time, it is obvious that the white mushroom slices will gradually change color. From white to yellow, from yellow to brown, this is the well-known browning (note: browning will not occur in an anaerobic environment), especially at a temperature of about 40 degrees, the color will change faster

The dry product quality of the freeze-drying process is the best, and one of the process conditions is vacuum anaerobic, but the cost of freeze-drying equipment is too expensive (the smallest and cheapest is 300,000 to 500,000 yuan), and most processing groups can only stop there. unable to purchase

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