Products

Working Principle

Process for air in drying room:

- Material heating by hot air in drying room, the moisture of material surface vaporized into steam after heat absorption, the air changed into hot humid air after moisture absorption.

- The hot humid air through the regenerator cooling (sensible heat) to near the dew point temperature.

- After cooling, the more saturated air is further cooled down to the dew point temperature or below through the evaporator, the water vapor in the air condensed and released condensation latent heat, the air cooled down and wetting to achieve dehumidification drying purposes through the evaporator.

- After cooling down and wetting through evaporator, the low temperature saturated air access low temperature side of regenerator, and heat up after heat exchanging with high temperature side.

- After through regenerator low temperature inside, the air access air-condenser to heat up further, by absorbing heat which released by the process of refrigerant condensation.

- The hot air by the main air blower was sent into the drying room for next cycle.

Process for Refrigerant working:

- The refrigerant of low-pressure liquid vaporized into lower-stress superheated air by evaporator which absorbed the air released heat.

- The lower-stress superheated refrigerant air proceed heat exchange through the energy saver and the high-pressure side liquid, to make the low pressure air entering the compressor by further overheating.

- The low-pressure superheated refrigerant air through the compressor of isentropic compression acting to High grade high temperature of high pressure air.

- The high temperature-pressure air enters into the wind condenser released into a high-pressure liquid by condensation latent heat.

- The high-pressure liquid proceeds heat exchange with lower-stress air by through the energy saving to further cold.

- Super cooled liquid through the filter into Thermo expansion valve by high-stressed energy saver, high pressure liquid enter into the evaporator through the expansion valve after decompression into a low temperature-pressure liquid (vapor-liquid mixture).

- The air enters into the next compression cycle by the evaporator.

Regenerative cycle:

Dehumidifying regenerative cycle is to increase regenerator inside the heat pump dehumidification dryer , to decline in temperature of evaporator so that the air temperature to rise when entering into the condenser; Regenerative cycle make the cooling capacity of evaporator use to decrease air cooling (invalid consumption cold reduction process), so it used to increase cooling capacity when cooling dehumidification process so that the best evaporation temperature and best dehumidification increased for heat pump drying; Increased regenerative cycle of the heat pump dehumidification drying is more than 30% energy saved when compare to the ordinary heat pump drying.

Features

The leading technology: dehumidification heat pump patented technology

Drying with dehumidification heat pump to instead of boiler, electrical heater and Cowper stove

No exhaust heat to let out, no any pollutant to release during drying process

‍‍

Flow-through drying pattern within high efficiency;

Hot air can rise and fall for alternating operation, more evenly for drying;

losed drying mode, without weather and area influence;

Drying temperature can reach at 75℃

Advanced drying technology with good quality;

PLC + touch screen automatic control mode, stable function, easy to operate; 

The engine room independent placed outside the room, easy to maintain and operate, extend equipment service life.

Technical Parameters

Technical Parameters of Double Effect Series