A waste heat recovery energy saving and environmental protection equipment

Abstract

The invention discloses waste heat recovery energy-saving environment-friendly equipment. The equipment comprises an oil storage tank, an oil supply pump, an ascending pipeline, a conveying pipeline,a superheater, an oil-water heat exchanger and a steam pocket, wherein a plurality of heat conduction oil heat exchangers which are connected in series are arranged in the ascending pipeline; each heat conduction oil heat exchanger comprises two heat insulation bases which are in butt joint, mounting grooves are formed in the outer ends of the heat insulation bases, and vent holes are uniformly formed in an inner end partition plate; and heat absorption blocks are arranged in the mounting grooves, a plurality of layers of coil pipes are arranged inside the heat absorption blocks, and the coilpipes are in communication with an oil inlet branch pipe and an oil outlet branch pipe through a first extension pipe and a second extension pipe respectively. According to the equipment, the heat conduction oil heat exchangers which are connected in series are arranged in the ascending pipeline, so that the heat loss can be reduced; and the heat absorption blocks in the heat conduction oil heat exchangers are made of porous foam metal copper materials, the operation of the ascending waste gas is not influenced, meanwhile, the heat in the ascending waste gas can be absorbed, the heat is transmitted to the oil liquid through the coil pipes, the heated oil liquid can continuously convey the heat energy outwards through a circulating system, and the energy-saving effect is good.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery, in particular to an energy-saving and environment-friendly equipment for waste heat recovery. Background technique [0002] In coking production, the raw coal gas that enters the riser from the coke oven coking chamber is about 700-800°C, and the heat generated accounts for about 36% of the total available heat of the coke oven. This huge amount of heat has not been paid attention to for many years Utilization, many coking enterprises generally use the method of spraying ammonia water in the bridge pipe to reduce the temperature of raw gas to below 85°C, a large amount of waste heat resources cannot be used, resulting in a great waste of energy. Although some enterprises adopt structures such as built-in spiral tube waste heat recovery heat exchanger, built-in heat pipe heat exchange technology, and half-pipe belt-wound heat exchanger, none of them can be stable for a long time due to...

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Problems solved by technology

This kind of waste heat recovery system still has disadvantages when it is used: first, the heat transfer oil heat exchanger is a parallel structure, which is not convenient to be installed in the riser pipe, and the heat loss is large; second, the structural design of the heat transfer oil heat exchanger is not reasonable enough , the heat transfer effect is not ideal

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