Heat pump drying technology

The high-temperature heat pump dryer uses the reverse Carnot principle to absorb the heat of the air and transfer it to the room, to improve the temperature of the drying room, and to cope with the corresponding equipment to achieve material drying. The high-temperature heat pump dryer consists of a compressor--heat exchanger (internal unit)--throttle--heat absorber (outer unit)--compressor and other devices constitute a circulation system. The refrigerant circulates in the system under the action of the compressor. It completes the gaseous boosting process in the compressor (temperature up to 100 °C), it enters the internal machine to release high-temperature heat to heat the air in the drying room, while being cooled and converted into a liquid liquid, when it runs to the outside machine After that, the liquid rapidly absorbs the heat and evaporates again into a gaseous state, and the temperature drops to minus 20 ° C - 30 ° C, at which time the air around the heat sink continuously transfers heat to the refrigerant. The continuous circulation of the refrigerant realizes the transfer of the heat in the air to the temperature of the air in the heating room in the drying room.

application

Drying and drying have been widely used in industrial, agricultural and chemical industries since ancient times, and drying technology is closely related to our production and life. With the requirements of low-carbon living green ecology, the awareness of environmental protection is becoming stronger and the resources of non-renewable energy resources are scarce. The use of high-energy, high-contamination drying equipment such as fuel oil and coal is strictly restricted or even prohibited. It is increasingly urgent to seek a kind of drying equipment that can replace the old ones, and the safe, environmentally friendly and energy-saving dryers. Tianhe air high temperature heat pump drying equipment came into being under such circumstances.

history

The high-temperature heat pump drying technology originated from the western countries such as the United States, Japan, France and Germany. China introduced this technology in the 1980s. It was first used in wood drying. Due to the low drying temperature of the heat pump, it is close to natural drying. Applied to the drying operation of food and agricultural and sideline products, good economic benefits have been achieved, and the added value of the products has been greatly improved. Now, high-temperature heat pump drying equipment came into being, especially the implementation of the government's energy conservation and environmental protection policies, which greatly promoted the development of heat pump drying technology. In particular, scientists have developed more efficient refrigerants that allow heat pump drying to develop from the Yangtze River basin to the Yellow River Basin and even to the Northwest.

Advantage

1. Safe and environmentally friendly.

2. The drying effect is good.

3. High efficiency and energy saving, low operating costs. The prospect of high-temperature heat pump drying technology The heat pump drying technology has the advantages of low energy consumption, low environmental pollution, high drying quality and wide application range. Its excellent energy-saving effect has been proved by various domestic and foreign experimental research institutes. At present, high-temperature heat pump drying equipment is moving towards increasing drying temperature. Now, the high-temperature heat pump drying equipment developed by Tianhe Company can reach up to 85 degrees, develop new high-temperature heat pump drying system, and automatic control technology of heat pump. Development, high-temperature heat pump drying as a technology that can completely reduce energy consumption and improve product quality will bring a major technological revolution to the drying industry.