A heat pump drying device for edible fungus with parallel air supply on the drying surface

Abstract

The invention discloses a drying surface parallel air supply type domestic fungus heat pump drying apparatus. The apparatus comprises an enclosing structure, a variable cross section air supply static pressure space, a drying area, a variable cross section air return static pressure space, an air treatment device, and an air supply main tube arranged at the upper portion of the enclosing structure, an air supply non-uniform orifice plate and an air return non-uniform orifice plate which are vertically arranged divide a space below the air supply main tube into the variable cross section air supply static pressure space, the drying area and the variable cross section air return static pressure space which are sequentially arranged along the airflow direction, and the air treatment device is arranged at the outer side of the variable cross section air supply static pressure space; and a group of air supply holes and a group of air return holes are arranged above each of layers of storage plates arranged in the drying area. Drying surface parallel air supply is adopted to improve the drying airflow distribution, so the uniformity and the stability of airflow in the drying surface are guaranteed, the drying efficiency is improved, and energy consumption is reduced.

Description

Technical field [0001] The invention belongs to the technical field of building environment and equipment engineering, and relates to an air circulation processing system, in particular to a drying surface parallel air supply edible fungus heat pump dry air circulation processing system. Background technique [0002] As a large agricultural country in my country, agricultural energy conservation is of great significance in energy conservation and emission reduction strategies. Many agricultural and sideline products (including edible fungi) are rich in moisture (generally with a moisture content of more than 80%). They must be dried before they are stored, transported and processed into food or other daily necessities. Drying operations are generally Consume a lot of energy. Hot air drying technology is the mainstream technology in the deep processing industry of edible fungi, and its production efficiency directly affects the effect of agricultural energy saving in this field. ...

AI Technical Summary

Problems solved by technology

However, the static pressure space of the air supply and return air is small, and the parallel air supply method in the baking workshop cannot fully achieve the effect of uniform and stable air flow organization, and the drying effect of edible fungi is not good.

The air supply port adopts constant air volume, and the same air volume is delivered to different drying spaces, which not only causes waste, but also affects the drying effect of edible fungi

[0004] Publication No. 104082397A is an invention patent application for an energy recovery type edible fungus drying device (see figure 2 ) The air supply static pressure space adopts a variable cross-section design, and adopts a parallel air supply structure set by double-hole plates, but the variable cross-section adopts a top-down penetrating design, which has a greater impact on the lower part, thereby affecting the wind speed and air volume in the drying area , reducing the drying quality in the lower part of the drying zone

The air supply and return air orifices adopt uniform slit orifice plates, which have a great influence on the airflow direction, resulting in differences in air temperature and wind speed in the horizontal direction in the drying area, and the drying effect is not good

Images