Totally enclosed double-effect heat recovery double-source ultra-high temperature heat pump dryer and its realization method

Abstract

The invention discloses a totally-enclosed double-effect heat recycling double-source ultrahigh-temperature heat pump dryer and a method for implementing the same. By the aid of the totally-enclosed double-effect heat recycling double-source ultrahigh-temperature heat pump dryer and the method, the problem of high energy consumption of an existing high-temperature material drying mode can be solved. The totally-enclosed double-effect heat recycling double-source ultrahigh-temperature heat pump dryer comprises a heat-insulation drying room, a first heat exchanger, a secondary heater, a blower, a return air fan, an air exhaust cooling device, a heat pump dehumidifying device and a controller. Temperature and humidity sensors are arranged inside the heat-insulation drying room; the first heat exchanger is communicated with the heat-insulation drying room via a first return air pipe; the secondary heater is communicated with the first return air pipe via a second return air pipe; an air inlet of the blower corresponds to the secondary heater, and an air outlet of the blower is communicated with the heat-insulation drying room; an air inlet of the return air fan corresponds to an air outlet of the first heat exchanger, and an air outlet of the return air fan is connected with a third return air pipe; the air exhaust cooling device is arranged in the third return air pipe; the heat pump dehumidifying device is arranged between one end of the third return air pipe and an air inlet of the first heat exchanger; the controller is connected with the temperature and humidity sensors. The totally-enclosed double-effect heat recycling double-source ultrahigh-temperature heat pump dryer and the method have the advantages of reasonable structure, convenience in use, excellent energy conservation effect, environmental protection and applicability to popularization and application.

Description

technical field [0001] The invention relates to a heat pump unit, in particular to a fully enclosed double-effect heat recovery double-source ultra-high temperature heat pump dryer and a realization method thereof. Background technique [0002] In my country, high temperature drying is mainly used in some special material places, such as high temperature drying of tea, urban silt, sharp fruit, fertilizer and other products. The commonly used drying methods for high temperature drying include steam drying, microwave drying, and hot blast furnace drying. Because the drying of materials must meet at least two conditions: heating and dehumidification, and dehumidification will waste a lot of heat in the process of high-temperature drying, and this heat waste sometimes accounts for 70% of the total heat. [0003] Specifically, the shortcomings of traditional high-temperature drying methods are mainly manifested in the following aspects: [0004] 1. Drying by steam and hot b...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a fully enclosed double-effect heat recovery dual-source ultra-high temperature heat pump dryer and its realization method, which mainly solves the problem of high energy consumption in the existing high-temperature drying method for materials

Images