Heat pump drying technology solves the "pain point" of grain drying

In order to solve the "pain point" caused by the weathering of grain drying, and to reduce the environmental pollution caused by traditional drying equipment, air-energy high-temperature heat pump drying technology has appeared on the market, which has energy saving, emission reduction, safety and environmental protection, and drying. It has many advantages such as good dry effect, high efficiency and energy saving, and is highly praised by the industry.

The drying market has always been a short board in China's agricultural machinery market. The average drying rate of food, tea, medicinal materials and sludge is relatively low. The more common drying equipment is mainly fuel dryer, which uses wood, coal, natural gas, etc. as fuel. Not only the drying efficiency is low, the cost is high, but also a large amount of harmful gas is released during the drying process, which pollutes the environment. In recent years, with the development of modern agriculture, from the government to the farmers, they are actively looking for ways to improve the processing of agricultural products and new energy sources that can replace coal. The air can be dried by high temperature heat pump, which is an ideal drying solution.

The air energy heat pump dryer utilizes the reverse Carnot principle to absorb the heat of the air outside the drying room and transfer it to the drying room to improve the temperature of the drying room, reduce the relative humidity, and generate high temperature and low humidity dry air, dry air. The water flowing through the material returns to the evaporator again to form a drying cycle. After several drying cycles, the drying of the materials is completed. As a new and energy-saving new technology, air can solve the problem of low drying efficiency and high drying cost to a large extent. Taking the high-temperature heat pump dryer developed by air energy as an example, it has the advantages of energy saving and emission reduction, safety and environmental protection, good drying effect, high efficiency and energy saving, low operating cost, labor saving cost and wide range of use, etc., and is highly praised by the industry.

Air energy heat pump drying has the following advantages:

First, the energy saving effect is good. In today's energy shortage, energy efficiency is the mainstream of social advocacy. Since the heat of the heated air in the heat pump drying device mainly comes from the moist heat and potential energy contained in the greenhouse gas discharged from the recovery drying chamber, the energy input needs only the power consumption of the heat pump compressor, because the heat pump has a small amount of functions to obtain a large amount of heat. The advantage of heat. Converting 1 part of electric energy into 3~4 parts of heat energy can generally increase energy saving effect by more than 30% compared with conventional drying.

Second, the temperature can be adjusted and the degree of automation is high. The heat pump drying temperature can be adjusted, and the wide temperature adjustment range allows the heat pump to dry different fruits and vegetables. The heat pump drying adopts advanced control components and devices. By adjusting the evaporation temperature of the evaporator, the condensation temperature of the condenser and the circulation of the air, the drying temperature is moderately adjusted, and the degree of automation is high.

Third, the product has good color and high quality. The heat pump heating method is mild. In the drying process, the temperature and circulation amount of the circulating air can be adjusted according to the heat and requirements of the agricultural product, so that the surface water evaporation speed of the agricultural product and the internal surface migration speed are basically the same, close to the natural drying speed. Therefore, the quality of the dried articles is good, the color is good, and the product grade is high.

Fourth, the internal environment is sanitation and the external environment is environmentally friendly. The heat pump can use environmentally friendly refrigerant and will not cause damage to the atmospheric ozone layer. In the heat pump drying device, the drying medium is closed in the air, no volatile substances such as dust, odor, exhaust gas, etc. are discharged to the environment, and there is no pollution, and there is no thermal pollution (heat radiation) of the unit to the environment.

With the gradual advancement of new rural construction and the government's growing concern about the three rural issues, the central and local governments have become more and more supportive of agricultural development and the scope of subsidies has become wider and wider. Drying of agricultural products has become more and more important as an important part of agricultural development. Drying equipment has been included in the scope of agricultural machinery subsidies, and various localities have also introduced drying and supporting policies. In October of this year, Jiangsu Nanjing issued a policy, air energy heat pump to dry food, each subsidy 16,000 yuan, the national government intends to support, heat pump technology is maturing, prompting China's heat pump drying industry into a golden period of development, in the drying of agricultural and sideline products, etc. The agricultural sector will play a huge role. The air and other top ten drying brands of China's industry and agriculture will continue to play a leading edge to help upgrade the quality of agricultural products processing!