Product characteristics and usage locations of heat pump dryers

Product features
1. It can achieve low-temperature air enclosed circulation drying, and the material drying quality is good. By controlling the operating conditions of the device, the temperature of the hot dry air in the drying room can be kept between 20-80 ℃, which can meet the high-quality drying requirements of most thermosensitive materials; Closed cycle of drying medium, It can avoid impurities pollution that may be caused by the exchange of gases with the outside world, which is particularly important for food, medicine, or biological products. In addition, when materials are sensitive to oxygen in the air (prone to oxidation or combustion explosion), inert media can also be used instead of air as a dry medium
Drying medium, achieving anaerobic drying.

2. Efficient and energy-saving. The heat of heating air in the heat pump dryer mainly comes from the sensible and latent heat contained in the warm and humid air discharged from the recovery drying room. The energy required for input is only the power consumption of the heat pump compressor, and the heat pump has the advantage of consuming a small amount of work to produce a large amount of heat. Therefore, the SMER (water content removed from wet materials by consuming unit energy) of heat pump drying devices is usually 1.0-4.0 kg/kWh, while the SMER value of traditional convection dryers is about 0.2-0.6 kg/kWh.

3. Convenient temperature and humidity control. When the material has high requirements for the temperature and humidity of the air entering the drying room (such as wood), the material's requirements for texture, appearance, and other aspects can be met by adjusting the evaporation temperature and condensation temperature of the working fluid in the evaporator and condenser
Seeking.

4. Useful volatile components in recyclable materials. Some materials contain volatile components (such as fragrance and other volatile components). When using a heat pump for drying, the volatile components and water in the drying room gasify together and enter the air
When the air is cooled by the evaporator, the volatile components inside are also liquefied and discharged together with the condensate. Collect the condensate containing the volatile components and separate the useful volatile components using appropriate methods.

5. Environmentally friendly. The drying medium in the heat pump drying device is enclosed in a closed loop, and there is no pollution caused by material dust, volatile substances, and odors emitted into the environment with the drying exhaust gas; The waste heat in the exhaust of the drying room is directly recovered by the heat pump to heat the cold and dry air, without any

The thermal pollution of the unit to the environment.

6. It can achieve multiple functions. The heat pump in the heat pump drying device also has a refrigeration function, which can be used to achieve low-temperature processing (such as quick freezing, refrigeration) or preservation of various materials in seasons with less drying tasks. It can also expand the heating function of the heat pump in cold weather

Seasons provide heating for planting (such as greenhouses) or breeding sites.

7. The heat pump dryer is suitable for a wide range of materials. The suitable materials for drying are mainly a large category of materials that can withstand temperatures between 20 and 80 ℃ during the drying process, or materials that can withstand higher temperatures but are more energy-efficient or safe to dry using heat pumps. Studied and

Materials that are widely used include wood (such as oak), grains, seeds, edible mushrooms (such as mushrooms and fungus), medicinal herbs (such as ginseng), seafood (such as fresh oysters and scallops), bioactive products (such as cells and enzymes), tea, paper, etc.

8. Compared with other low-temperature drying devices (such as microwave drying, vacuum drying, and freeze-drying) where the air temperature in the drying room is less than 40 ℃, the heat pump dryer device has obvious economic benefits due to its small initial investment and low operating costs. Equipment of heat pump drying device

The cost mainly includes the heat pump part and the drying room part, among which the drying room part has the same requirements as the ordinary convection drying room, without special requirements for airtightness and pressure resistance.

9. Compared with ordinary drying devices (with air temperature entering the drying room>40 ℃), the initial investment of heat pump dryers is generally higher than that of air electric heating devices, gas or coal-fired hot air stoves. Therefore, the initial investment of drying devices is generally higher than that of ordinary drying devices, and heat pump dryers are used for drying

The energy efficiency of the device is high, the operating cost is low, and its comprehensive economy still has certain advantages.

Place of use
The high-temperature heat pump drying unit is suitable for drying bedding in hotels and hotels, including seafood, vegetable dehydration, AD black fungus, melon seeds, peanuts, fruits and vegetables, meat products, casings, tobacco, leather, shiitake mushrooms, goji berries, dried fruits, mosquito repellent incense, tribute incense, fabrics, clothing, and grains.Drying of grains, dried noodles, Rolls of dried bean milk creams, fertilizers, medicines, Chinese medicinal materials, paper products, wood, seeds, sludge, gypsum, hardware products, metallurgical products, mining by-products, chemical products, FGD gypsum, clay, forage, flue-cured tobacco, powdered coal, slime, lignite, etc.
Dry. In terms of industrial hot water, it can also meet the constant temperature of electroplating solution in electroplating plants, the heating and insulation of high-temperature hot water in slaughterhouses, the supply of high-temperature hot water in star rated hotels, and the demand for high-temperature hot water in industrial enterprises.