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Operating Principle of Heat Pump Dryer
The energy saving heat pump dryer machine is using inverse Carnot cycle principle and driven by a small amount of electric energy.
1) The refrigerant (Freon) is pressurized by the compressor to become a high temperature and high pressure gas (temperature up to 100ºC) before it enters the heat exchanger (condenser);
2) The refrigerant gas is condensed and liquefied in the condenser to release high temperature heat energy,which will be transferred into the drying chamber by circulating fan to heat the air there.
3) The water in the materials are vaporized through the form of hot air, and the evaporated water steam is discharged away by the dehumidification system to achieve the purpose of drying the materials in the drying chamber.
4) After condensation and heat release,the refrigerant is changed into a low temperature and low pressure liquid through the expansion valve.
5) The liquid refrigerant will continuously absorb the low heat energy of the surrounding air and quickly evaporate into a gas state when it enters the evaporator due to the sudden reduction of the pressure;
6) The refrigerant that absorbs a certain amount of energy flows back to the compressor and the next cycle begins. In this way, the refrigerant continuously circulates the heat energy in the air to the drying chamber to heat the air.
Various Drying Equipments Comparison | ||||||||||
Heating Type | Fuel Type | Energy Efficiency | Energy Consumption | Calorific Value | Unit Cost | Toal Cost | Safety Performance | Environment Effects | Labor Costs | Service Life |
Diye Air Energy Heat Pump Dryer | electricity | 300% | 37kW·h/H | 860Kcal/KG | $0.14/kW.h | $5.2/H | Safe&Reliable | None | Low | 10-15 years |
Electric heater | electricity | 95% | 107kW.h/H | 860Kcal/KG | $0.14/kW.h | $15/H | Aging electric heating tube | None | High | 5-8 years |
Oil-fired Boiler | diesel | 75% | 14KG/H | 10000Kcal/KG | $0.92/kW.h | $13/H | Oil leak/fires/explosion | Heavy Pollution | High | 6-9 years |
Coal Boiler | coal | 42% | 42KG/H | 5000Kcal/KG | $0.14/kW.h | $5.9/H | Air leak/fires | Heavy Pollution | High | 6-9 years |
Gas Boiler | gas | 75% | 14Nm³ | 10000Kcal/KG | $0.61/kW.h | $8.5/H | Gas leak/fires/explosion | Medium Pollution | High | 6-9 years |
Advantages of Cabinet Type Heat Pump Fruits Dehydrator
Best small food dehydrator drying chamber
A. Machine and trays are made of stainless steel material.
B. High productivity,50-300KG/Batch.
C. Reliable and gentle drying,adjustable heating temperature range 30--70ºC.
D. Equipped with touch screen and intelligent control,no need additional workers to watch on during drying process.
E. Low operation cost: 1kw heat produced by using heat pump equals 3-4 kw by Electric heater.
F. Environmental friendly,no burning,no pollution during drying process.
G. More safe,no risk of flame,explosion or poisoning.
H. Low operation cost, Heat produced by 1KW by using heat pump, equals 3`4 kw by Electric heater.
I. Small size and easy to move around.
Technical Parameters of Heat Pump DryerModel number | DY-18SH/XH(6HP) | DY-36SH/XH(12HP) | DY-45SH/XH(15HP) | DY-60SH/XH(20HP) | DY-75SH/XH(25HP) | DY-90SH/XH(30HP) |
Heating Capacity | 18kw | 36kw | 45kw | 60kw | 75kw | 90kw |
Dehumidification | 18L/H | 36L/H | 45L/H | 60L/H | 75L/H | 90L/H |
Refrigerant Type | R22/R134a | R22/R134a | R22/R134a | R22/R134a | R22/R134a | R22/R134a |
Rated Power | 5.6kw | 11.2kw | 13.5kw | 19.4kw | 25kw | 28.5kw |
Rated Current | 10.5A | 21A | 25.4A | 36.5A | 46.9A | 53.4A |
Maximum Power | 15.6kw | 21.2kw | 23.5kw | 39.4kw | 45kw | 48.5kw |
Maximum Current | 29A | 40A | 44A | 74A | 84.6A | 91.2A |
Voltage/Frequency | 380V/50HZ | 380V/50HZ | 380V/50HZ | 380V/50HZ | 380V/50HZ | 380V/50HZ |
Protection Against Electric Shock | Class I | Class I | Class I | Class I | Class I | Class I |
Drying Chamber Temperature | 35~70ºC | 35~70ºC | 35~70ºC | 35~70ºC | 35~70ºC | 35~70ºC |
Ambient Temperature | -5~45ºC | -5~45ºC | -5~45ºC | -5~45ºC | -5~45ºC | -5~45ºC |
Maximum Exhaust Pressure | 0.7/2.8MPa | 0.7/2.8MPa | 0.7/2.8MPa | 0.7/2.8MPa | 0.7/2.8MPa | 0.7/2.8MPa |
Noise | ≤53dB | ≤53dB | ≤53dB | ≤53dB | ≤53dB | ≤53dB |
Standard Air volume | 6000m³/H | 12000m³/H | 15000m³/H | 20000m³/H | 25000m³/H | 30000m³/H |
Net Weight | 250kg | 400kg | 450kg | 520kg | 600kg | 870kg |
Dimensions(L*W*H) | 950*950*1820mm | 1600*1000*1820mm | 1600*1100*1850mm | 2000*1300*1820mm | 2000*1600*1820mm | 2000*1600*1850mm |
Fruit Drying Machine Application
Hundreds of drying projects experience; Introduced advanced manufacturing technology.
Zero pollution,low energy consumption,environmental protection,energy saving heat pump dryers.
B. OEM & ODM are welcome;
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