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Three times of subcooling can improve the heating capacity in winter. Nachuan dryer will be unveiled at China Heat Pump Exhibition 2021


      With the increasing awareness of energy conservation and environmental protection, energy-saving products that are conducive to environmental protection will receive more and more attention. The increasing maturity of heat pump drying technology has greatly reduced the one-time investment and operating costs of material drying, and heat pump drying technology has shown broad application prospects. Over the years, Zhejiang Nachuan New Energy Technology Co., Ltd. has been committed to improving the quality of material drying, and has developed an air source heat pump dryer (model: NCYLK-34IIDXS/01) with a third subcooling system, which can effectively improve The thermal capacity and product stability of the drying mechanism in winter.

      From March 15th to 17th, 2021, the annual event of the air source heat pump industry-China Heat Pump Exhibition will be held at Shanghai Everbright Exhibition Center. At that time, Zhejiang Nachuan New Energy Technology Co., Ltd. (Booth No.: T223) will bring the air source heat pump Dry machine exhibitors.

      Nachuan air source heat pump dryer adds a third subcooling, which can further increase the return air temperature of the evaporator side and the subcooling degree of the condensing side, which can effectively increase the return air pressure of the compressor during winter operation, thereby increasing heating It can reduce the compression ratio of the compressor and improve the stability of the product. While the normal temperature type heat pump dryer has only one subcooling, and the low temperature type heat pump dryer has two subcoolings. In the winter use process, the heating capacity attenuation is relatively large, the energy efficiency is low, the compressor compression is relatively large, and the product stability is relatively high. Poor, greatly shortening the service life of the product.

      The dryer refrigerant is compressed into a high-temperature and high-pressure liquid in the compressor and enters the condenser, and then exchanges heat with the flowing air in the condenser (the refrigerant releases heat), and the refrigerant is condensed into a high-temperature and high-pressure liquid. This process is In the first cooling, the high temperature and high pressure refrigerant enters the accumulator, and the accumulator stores the excess refrigerant. Then, the refrigerant enters the economizer in two ways. The first way is throttled and reduced in temperature and pressure by the thermal expansion valve to become a low-temperature and low-pressure liquid. The second way remains unchanged and exchanges heat with the first way in the economizer. The high-temperature and high-pressure liquid refrigerant is cooled and released for the second time. This process is the second subcooling.

      After the second subcooling, the refrigerant becomes a medium temperature and high pressure liquid and enters the vapor-liquid separator. In the vapor-liquid separator, it exchanges heat with the low-temperature and low-pressure refrigerant in the return pipe of the compressor. This process is the third subcooling. The cold refrigerant becomes a low-temperature and high-pressure liquid and enters the electronic expansion valve. The electronic expansion valve throttles and reduces the pressure and temperature of the refrigerant so that the refrigerant becomes a low-temperature and low-pressure liquid and enters the evaporator, where it exchanges heat with the flowing air (refrigerant absorption Heat in the air), the refrigerant is evaporated into a low-temperature and low-pressure gas into the vapor-liquid separator, where it exchanges heat with the medium-temperature and high-pressure liquid refrigerant in the loop to further absorb heat and then enters the compressor for a reciprocating cycle.

      Zhejiang Nachuan New Energy Technology Co., Ltd. is a solution integrator integrating heat pump drying product research and development, manufacturing, sales, after-sales and drying system design, drying process research, and consulting services. The company takes high-quality products and system solutions as its core competitiveness, and is committed to creating high-quality projects in the six drying industries of "agricultural product drying, fruit and vegetable drying, medicinal material drying, tobacco drying, grain drying, and industrial drying" , Really achieve energy saving and environmental protection, make users satisfied, and create value for customers.

      The China Heat Pump Show is currently the professional exhibition with the highest specifications in the domestic air source heat pump industry. The China Heat Pump Show 2021 combines exhibitions, summit forums, new product releases, procurement conferences, and more than 50 concurrent events. It is the heat pump industry to the whole country and the world. And a cutting-edge platform for publicity. The exhibition area is nearly 55,000 square meters, and it is expected that the professional audience will exceed 60,000.

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