A method of drying industrial materials with a high temperature heat pump

Abstract

The invention provides a method for drying industrial materials by a high-temperature heat pump. According to the method, a tunnel type drying kiln is arranged; doors are arranged at the two ends of the tunnel type drying kiln; at least one set of a heat pump set is arranged on the outer wall or the kiln top of the drying kiln; a plurality of heat supplying holes and air exhausting holes are formed in a kiln wall at one side of the drying kiln; a plurality of the heat pump sets are arranged in parallel to simultaneously convey heat sources into the drying kiln; a one-fin type heat exchanger is arranged between a compressor for realizing center control on each heat pump set and an evaporator; after heat exchange is carried out on drying mediums input into a heat pump condenser from the evaporator, the drying mediums are collected into a heat collection pipe of the drying kiln; the heat collection pipe is provided with a plurality of heat distribution pipes connecting into the drying kiln; each heat distribution pipe is controlled by an air heater to supply heat into the drying kiln. According to the method provided by the invention, the difficulties of large-size manufacturing industry drying equipment that the drying capability is low, and automatic line production drying cannot be met are overcome; the amount of the drying mediums discharged from the condensers is controlled by the plurality of air heaters, thereby realizing rapid heating and flowing speed of a cold medium in the heat exchanger; meanwhile, the heat transfer coefficient in the drying kiln can also be adjusted.

Description

technical field [0001] The invention relates to a method for heating by a high-temperature heat pump, in particular to a method for drying industrial materials by using a high-temperature heat pump. Background technique [0002] At present, in the large-scale machinery manufacturing industry, such as vehicle manufacturing, machine manufacturing, etc., the cleaning and baking of parts are indispensable processes. After the parts are cleaned or painted, they need to be quickly dried. The method is to send the parts into the drying room and use electric heating for drying. The heating time is too long, the heating temperature is difficult to control, and the temperature in the drying room is uneven, especially in the process of drying and baking paint, which may easily lead to unstable product quality. The energy consumption is serious and the production cost is high, which seriously restricts the effect of energy saving and consumption reduction. What is more prominent is tha...

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Problems solved by technology

[0002] At present, in the large-scale machinery manufacturing industry, such as vehicle manufacturing, machine manufacturing, etc., the cleaning and baking of parts are indispensable processes. After the parts are cleaned or painted, they need to be quickly dried. The method is to send the parts into the drying room and use electric heating for drying. The heating time is too long, the heating temperature is difficult to control, and the temperature in the drying room is uneven, especially in the process of drying and baking paint, which may easily lead to unstable product quality. Serious energy consumption and high production costs seriously restrict the effect of energy saving and consumption reduction

What is more prominent is that most of the drying rooms used by large industrial enterprises are small drying equipment, which cannot meet the effect of tunnel-type flowing water drying operations, which seriously restricts the improvement of production efficiency

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