Heat pump type tube bundle drier

Abstract

The invention provides a heat pump type tube bundle drier. The heat pump type tube bundle drier comprises a heat pump unit and a tube bundle drier unit, wherein the heat pump unit is a closed loop, the heat pump unit comprises an expansion valve, an evaporator, a compressor and a tube bundle condenser which are connected in sequence, and the tube bundle condenser is shared to be used in the drierunit; the tube bundle drier unit comprises a tube shell, a shoveling plate, a transmission mechanism, a feeding port, a discharging port, an exhaust gas outlet and the tube bundle condenser which is shared to be used in the heat pump unit; the tube bundle condenser and the shoveling plate are installed inside the tube shell, and the tube bundle condenser, as a part shared by the heat pump unit andthe drier unit, acts as not only the condenser of the heat pump unit, but also the heater of the pipe bundle drier unit. Through the organic combination of an air source heat pump technology and a traditional tube bundle drier, the heat pump type tube bundle drier is provided, the drying thermal efficiency of the tube bundle drier is improved, therefore the goal of energy conservation and environment protection, high drying efficiency and good quality of dried products is achieved.

Description

technical field [0001] The invention belongs to the field of grain drying equipment, in particular to a heat pump tube bundle dryer. Background technique [0002] Heat pump tube bundle dryer is used for drying non-viscous or semi-viscous materials such as granules, flakes and powders in grain, food, feed, light industry, starch and other industries. [0003] Material drying is the process of adding heat to the wet material and removing the moisture in the wet material. Since the sensible heat and latent heat of evaporation required for the temperature rise of the wet material and the evaporation of the water in the wet material need to be provided during drying, the material drying process requires a lot of Therefore, in the drying process, on the premise of ensuring the drying quality of materials, improving drying efficiency and reducing energy consumption in the drying process are important tasks for energy saving and emission reduction in the drying industry. [0004] H...

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Problems solved by technology

[0008] In view of the above prior art, the problem to be solved in the present invention is to provide a heat pump tube bundle dryer by organically combining the air source heat pump technology with the traditional tube bundle dryer, which can not only improve the drying heat efficiency of the tube bundle dryer, but also effectively Energy saving, also because of the use of electric energy, a clean energy source, to reduce environmental pollution, achieve energy saving and environmental protection, high drying efficiency, and good quality of dried products

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