Vermicelli drying process heat recovery heat pump air-conditioning system

Abstract

The invention relates to a vermicelli drying process heat recovery heat pump air-conditioning system which comprises a compressor, a condenser, an evaporator, a blower, a throttle valve and a heat exchanger. The compressor is connected with the finned-tube-type condenser which is located in a vermicelli drying workshop through pipelines. The compressor then is connected with the evaporator which is located outside a processing workshop through the throttle valve. The evaporator is communicated with the compressor. The evaporator is connected with the heat exchanger through bypassed freeze water pipelines. The vermicelli drying process heat recovery heat pump air-conditioning system recycles waste heat in the vermicelli drying workshop, provides heat for a drying workshop and at the same time, provides cool for the other workshops in summer. The original boiler system which uses conduction oil to supply heat is replaced by the high-temperature heat pump system which uses the compressor to supply heat, the waste heat in the vermicelli drying workshop is fully used, and the purposes of saving energy, lowering consumption and reducing emission are achieved.

Description

technical field [0001] The invention relates to the technical field of food processing equipment, and more specifically, relates to a heat recovery heat pump air-conditioning system for dried noodle drying process, which recovers waste heat discharged from a dried noodle drying room. Background technique [0002] The noodle industry is an integral part of my country's national economy, and noodle drying is to reasonably control the temperature, humidity and flow speed of the air used as the transfer medium in the drying tunnel. Different countermeasures are taken in different drying stages to diffuse and vaporize the moisture in the dried noodles, transfer to the air to form moist air and be taken away, and finally obtain fine dried noodles. Drying of vermicelli generally adopts the convective thermal drying method, that is, the use of primary energy (coal or natural gas, etc.) Drain the moisture in the dried noodles to achieve the purpose of drying. Due to the direct evac...

AI Technical Summary

Problems solved by technology

However, the heat pump device currently used in the dried noodle drying process has the following defects: since the laid heat pipe runs through the entire drying chamber of the dried noodle as a whole, the three stages of dried noodle drying (pre-drying, main drying, and slow drying) In Su), the temperature of the drying medium is almost constant, and the drying partition of the dried noodles is not obvious, so that the dried noodles are in almost the same drying process, and the quality of the dried noodles is difficult to guarantee

In addition, the exhaust gas directly discharged into the environment contains a large amount of waste heat, causing unnecessary energy loss

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