Integral compressed air heat recovery device

Abstract

The invention relates to a device capable of recovering heat of compressed air, in particular to a device capable of recovering waste heat of high-temperature air of a piston type or centrifugal air compressor and providing domestic water such as hot water for bath. The device includes a water pump, one-way valves, water filters, a hand-operated valve, a heat exchanger, a cooler, an automatic blowoff valve, a circulation water tank, electromagnetic valves, a regulating valve, a pneumatic valve, a waterway pipeline and an air pipeline, and is characterized in that through the adoption of the method, waste heat in air can be recovered through the heat exchanger to heat water inside the water tank, and hot water in the water tank achieving a certain temperature can be delivered to a water storage tank at a user point for living use or serving as replenishing preheating water of a boiler. The device provided by the invention has the advantages of low investment, remarkable energy-saving benefits, short payback period, low maintenance cost, simplicity in operation and convenience for use.

Description

technical field [0001] The invention relates to a device capable of recovering compressed air heat, in particular to a device for recovering waste heat from high-temperature air of a piston or centrifugal air compressor and providing hot water for domestic water such as bathing. Background technique [0002] The additional waste heat generated by the air compressor due to work is usually discharged into the ambient atmosphere through a cooling device. At present, the waste heat recovery of air compressors is limited to the heat energy recovery of oil-injected screw air compressors, which relies on the large amount of waste heat contained in the lubricating oil of oil-injected screw air compressors to recover part of the heat through heat exchange. The disadvantages of common heat recovery devices: 1) It is only suitable for oil-injected screw air compressors, and cannot be used for other types of air compressors such as piston air compressors, centrifugal air compressors, an...

AI Technical Summary

Problems solved by technology

The disadvantages of common heat recovery devices: 1) It is only suitable for oil-injected screw air compressors, and cannot be used for other types of air compressors such as piston air compressors, centrifugal air compressors, and oil-free screw air compressors. Waste heat recovery; 2) The air compressor needs to be modified, and the engineering installation is complicated; 3) A large amount of extra compressor lubricating oil needs to be added to the system, which increases the operating cost; 4) Leakage in the heat exchanger is likely to cause serious damage water system pollution

Images