Brief introduction of application and technical prospect of heat pump dryer in Hotel

In recent years, heat pump technology has attracted more and more attention all over the world Heat pump is a kind of low-grade heat energy which can be obtained from the air, water or ground in nature After the compressor works, it can provide the high-temperature heat pump dryer which can be used by people Since the 1970s, the heat pump industry has entered the golden age The research work of heat pump in the world has been ten times The development plan of large-scale heat pump is drawn up, so the technology of heat pump is emerging in an endless stream, and the use of heat pump is constantly expanding, which is widely used in the field of room conditioning industry and plays an important role in energy conservation and environmental protection At present, drying is an essential processing procedure in many industrial production and by-product processing With the development of China's economy, people's life quality requirements are higher and higher, their awareness of environmental protection is stronger and stronger, and energy (such as natural gas, coal, oil) is increasingly exhausted Some high energy consumption and high pollution drying equipment such as fuel oil and coal are strictly used It is more and more urgent to find an alternative to the old drying equipment, which is safe, environmentally friendly and energy-saving The high temperature heat pump drying equipment came into being in the seed environment Introduction to the high temperature heat pump drying unit Heat pump is essentially a kind of heat lifting device Maggots of high-temperature heat pump dryer use the inverse Carnot principle to absorb heat from the surrounding environment and transfer it to the heated object (the object with higher temperature) Its working principle is the same as that of the refrigerator, and it works according to the inverse Carnot cycle, but the working temperature range is different Working principle of high temperature heat pump dryer Maggots of high-temperature heat pump dryer are mainly composed of four parts: fin evaporator (external machine), compressor, fin condenser (internal machine) and expansion valve The thermal cycle process of evaporation (absorbing heat from outdoor environment) → compression → condensation (releasing heat from indoor drying room) → combing → re evaporation is completed by the working medium, so as to transfer the heat from external low-temperature environment to In the drying room, the refrigerant circulates in the system under the action of the compressor It completes the process of gas pressure rise and temperature rise in the compressor (the temperature is up to 100 ℃) It enters the internal machine and releases high temperature heat to heat the air in the drying room At the same time, it is cooled and transformed into liquid flow When it runs to the external machine, the liquid state and thermal evaporation are transformed into gas state again, and the temperature can drop at the same time To - 20 ℃ ~ - 30 ℃, the air around the heat receiver will continuously transfer heat to the refrigerant Use place of high temperature heat pump dryer High temperature heat pump dryer is suitable for drying bedding in hotels, dehydrating seafood and vegetables, such as black tremella, melon seeds, peanuts, fruits and vegetables, meat products, casings, tobacco leaves, leather, Lentinus edodes, medlar, dried fruit, mosquito repellent incense, tribute incense, cloth, in use, grain, vermicelli, beancurd, fertilizer, medicine, traditional Chinese medicine, paper, wood, seeds, sludge, stone Drying of gypsum, hardware products, metallurgical products, mine byproducts, chemical products, FGD gypsum, clay, forage, flue-cured tobacco, pulverized coal, slime, lignite, etc in terms of industrial hot water, it can also meet the constant temperature of electroplating plant, heating and maintaining of high temperature hot water in hotels, supply of high temperature hot water in hotels and demand of high temperature hot water in industrial enterprises.