The heat pump dryer consists of a compressor-heat exchanger (internal unit)-throttle-heat absorber (outer unit)-compressor and other devices to form a circulation system (host + drying room).
The refrigerant circulates in the system under the action of the compressor. It completes the gaseous boosting process in the compressor (temperature up to 115 ° 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 will continuously transfer 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.
2. Working principle
The drying process requires a lot of heat. In order to save energy, some materials with high moisture content, suspensions or solutions containing solid substances are usually first mechanically dehydrated or heated to evaporate and then dried in a desiccator to obtain a dry solid.
Heat is transferred from the high temperature heat source to the wet material in various ways, causing the surface of the material to evaporate and escape to the external space, thereby producing a difference in moisture content on the surface and inside of the material. The internal moisture diffuses to the surface and evaporates, so that the moisture content of the material is continuously reduced, and the overall drying of the material is gradually completed.
3. Equipment Parameters
Industrial hot air heat pump drying machine consists of a host, a drying room, a wind circulation system and a controller. Inside the drying room, there are trolleys and trays with wheels, and a maintenance room. The size of the drying room is not the same as the number and size of the trolley and the tray.
Our hot air equipment is available in a variety of models and powers, and we can offer customized services to meet the different needs of our customers.
1. The air energy heat pump dryer can effectively ensure the nutrients, health and environmental protection.
2. safe and reliable operation: the whole system runs without the danger of flammable, explosive, poisoning and short circuit which may exist in the traditional dryer (fuel, gas or electric heating), and is a safe and reliable fully enclosed drying system.
3. Long service life and low maintenance cost: It is developed on the basis of traditional air-conditioning technology. It has mature technology, stable and reliable performance, long service life, safe and reliable operation, automatic manual operation and intelligent control.
Jinan Saibaonuo Technology Development Co., Ltd. is a leading manufacturer of high quality Twin Screw Extruders for food industries, has a well-established team, including professional engineering, installation technicians and sales staff.
It has established deep cooperative relations with many research institutes and colleges and universities, and has maintained frequent technical exchanges and cooperation with many international counterparts. It has strong technical strength and perfect quality assurance system.