Energy storage heating system based on air compressor waste heat recovery

Abstract

The invention provides an energy storage heating system based on air compressor waste heat recovery, and belongs to the field of industrial waste heat recovery. The energy storage heating system is composed of an air compressor waste heat recovery device, a softened water device, a heating device and an energy storage water tank. The system is novel in system, and the entire system is refilled with softened water from time to time through the softened water device, thus the scaling problem of the hot water of an air compressor waste heat recovery and heating system can be avoided, and the usesafety of the entire heating or hot water supply system can be effectively guaranteed; when the external environment temperature changes, the heat recovered from the air compressor waste heat can be stored in the energy storage water tank, or an air compressor waste heat recovery unit and the energy storage water tank can be combined for heating, so that the running energy consumption of the system can be reduced on the premise of ensuring the heat supply demand; and when the heating load is low, heat is stored in the energy storage water tank by opening the air compressor waste heat recoveryunit, and during the heating load peak period, hot water in the energy storage water tank is directly used for heating or hot water supply, so that the effect of energy conservation and consumption reduction is further achieved.

Description

technical field [0001] The invention belongs to the field of industrial waste heat recovery, and relates to a waste heat recovery system, in particular to an energy storage heat supply system based on recovery of waste heat from an air compressor. Background technique [0002] During the operation of the air compressor, the electric energy consumed to increase the potential energy of the air is 15% to 20% of the total power consumption, and about 80% to 85% of the electric energy is converted into heat, which enters the compressed air, lubricated Oil, etc., then ventilate and cool the compressed air, cool the lubricating oil by air cooling or water cooling, and discharge the heat into the air. The heat is wasted and not utilized, and can be recycled through heat exchange and other methods. [0003] At present, in the production process, the operating load of the air compressor has been changing according to the change of air consumption, and it is operated 24 hours a day. T...

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Problems solved by technology

[0003] At present, in the production process, the operating load of the air compressor has been changing according to the change of air consumption, and it is operated 24 hours a day. The heat that can be recovered is unstable, so it is not suitable for direct use in heating or hot water supply, especially in When heating a building, the heating load of the building changes continuously with factors such as outdoor air temperature and indoor personnel activities, which does not match the curve of waste heat recovery from the air compressor. In order to ensure the use, it is necessary to set up an auxiliary heat source, which increases the initial investment. The management is inconvenient and the cost of use increases, and the economy of operation decreases

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