Exhaust heat recovery system for cold storage floor propanediol heating system

Abstract

The invention discloses an exhaust heat recovery system for a cold storage floor propanediol heating system, comprising a refrigerating system and an exhaust heat recovery system. The refrigerating system comprises a compressor, a condenser, an expansion valve and an evaporator connected in sequence; a heat recovery unit is mounted on an exhaust pipeline of the compressor and is connected with a heat recovery water tank; the other end of the heat recovery water tank is connected with an air heater and the other end of the air heater is connected with a propanediol constant-pressure apparatus;the other end of the propanediol constant-pressure apparatus is connected with a propanediol supply pipe; the propanediol supply pipe is provided with multiple groups of water knockout traps; a propanediol return pipe is provided with multiple groups of water collectors and is connected with the heat recovery unit; the heat recovery water tank is connected with a water pump, and the other end of the water pump is connected with the heat recovery unit. The exhaust heat recovery system achieves heat recovery stably and reliably with low loss of heat and realizes secondary conversion and utilization of energy.

Description

technical field [0001] The invention relates to the technical field of energy recovery, in particular to a waste heat recovery system used in a cold storage floor propylene glycol circulation heating system. Background technique [0002] At present, floor antifreeze measures usually adopt floor overhead antifreeze, ventilation antifreeze, electric heating antifreeze and propylene glycol heating system for antifreeze. It has certain defects. Although the antifreeze of the propylene glycol heating system is better than the above methods, the propylene glycol solution flows directly into the water tank after being circulated through the pipeline, resulting in the waste of excess heat of the propylene glycol solution. The above mentioned methods are not based on the antifreeze treatment of the floor. Recycle and reuse. Contents of the invention [0003] In order to overcome the defects in the background technology, the present invention provides a waste heat recovery system u...

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Problems solved by technology

[0002] At present, floor antifreeze measures usually adopt floor overhead antifreeze, ventilation antifreeze, electric heating antifreeze and propylene glycol heating system for antifreeze. It has certain defects. Although the antifreeze of the propylene glycol heating system is better than the above methods, the propylene glycol solution flows directly into the water tank after being circulated through the pipeline, resulting in the waste of excess heat of the propylene glycol solution. The above mentioned methods are not based on the antifreeze treatment of the floor. Recycle and reuse

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