Shu Liang heat recovery air source heat pump grain drying demonstration project in Nantong

Recently, the Shu Liang heat recovery air source heat pump food and electric drying demonstration project was completed and put into use at Wenshan Base (Tongzhou Yuwan Rice Industry), Nantong, Jiangsu.

Traditional grain drying uses more fuel or coal-fired furnaces as heat sources, producing large amounts of carbon dioxide and sulphides, and contaminating the air. The general air source heat pump electric drying equipment, while overcoming the environmental pollution problem, has low operating efficiency, large operating power, and the need for dedicated transformer power supply, which is not conducive to widespread application. The Shu Dian heat recovery air source heat pump grain electric dryer developed by Nantong Power Supply Co., Ltd. and Howard Energy Conservation Co., Ltd. adopts the principle of reverse Carnot heat pump, which recycles and uses energy, has low operating power, and greatly improves energy efficiency. It is worth mentioning that the total installed capacity of one station and four towers of this type of equipment does not exceed 100 kilowatts. The power lines throughout urban and rural areas can be directly supplied with electricity. This saves investment in transformers and superimposes the favorable policy of the power supply companies giving agricultural production electricity prices. The cost is greatly reduced.

At the scene of the promotion of the entire province in Nantong, the new device adopts an intelligent human-computer interaction interface, and adopts a cyclic heat recovery technology in a totally enclosed system. Various drying processes are solidified in a microcomputer, and the equipment is highly intelligent. The dried grains retain their natural color and shape. According to Ji Guodong, the person in charge of Jiangsu Haowateshu Energy Saving & Environmental Protection Technology Co., Ltd., the dryer can precisely control the degree of drying of grains, and the nutrient components of grains after drying are not damaged and the quality is excellent. Compared to ordinary heat pump dryers, the Sjogren heat recovery air source heat pump dryer uses a negative pressure heat recovery technology to save energy, drying 1 ton of the same grain from 24% moisture content to 14%. , Fuel drying requires 150 yuan, the general heat pump dryer costs 48 yuan, and Shu Liang heat recovery heat pump drying only need 20 yuan, the cost advantage is very obvious.

Take Nantong City as an example. As of now, the city has built 106 drying centers with an additional drying capacity of about 6,000 tons. In accordance with the three-year action plan for Nantong's grain mechanization drying capacity construction, Nantong will add more than 200 drying centers in the next two years. By 2020, the drying capacity of grain production sites will reach over 80%. The prospects for equipment promotion, energy-saving effects, and environment The combined effects of benefits and grain grain return will be prominent. As a cooperative unit, Jiangsu Electric Power Energy Service Company also provided financial support for this new type of grain electric drying equipment, and further reduced operational investment through the energy efficiency cooperation mechanism.