A heat storage heat exchanger and a heat storage heat exchange device

Abstract

The invention discloses a regenerative heat exchanger which comprises a tank body, a gas inlet conduit and a gas outlet conduit are respectively arranged at the upper part and the lower part the tank body, heat accumulation beds and heat accumulation bed fixing structures are also arranged in the tank body, the heat accumulation beds are fixedly arranged in the tank body through the heat accumulation bed fixing structures and comprise randomly-stacked heat accumulation medium layers and regularly-put heat accumulation medium layers which are superposed together, the randomly-stacked heat accumulation medium layers are formed by stacking a plurality of randomly-stacked heat accumulation mediums, a first flow channel is formed among the randomly-stacked heat accumulation mediums, each randomly-stacked heat accumulation medium is provided with a second flow channel, the first flow channel and the second flow channel among the randomly-stacked heat accumulation mediums form a bent irregular flow channel, a regular flow channel is formed among the regularly-put heat accumulation medium layers, and the irregular flow channel is partially or fully communicated with the regular flow channel. The regenerative heat exchanger has the advantages of high heat accumulation and release speed, good heat transfer and comprehensive flow property, continuous heat exchange, energy conservation, environment friendless and the like, and can be used for treating a plurality of high-temperature waste gases produced in the industrial production process, and the requirements on energy conservation and emission reduction are met.

Description

technical field [0001] The invention relates to a device for recovering and utilizing waste gas heat, in particular to a heat storage heat exchanger and a heat storage heat exchange device. Background technique [0002] At present, part of the equipment used for waste gas treatment in metallurgy, electric power, petroleum, chemical and other industries is a heat storage heat exchanger, which realizes short-term storage of energy through a heat storage medium, and recovers the waste heat in the waste gas for preheating cold air. The heat storage medium is an important part of the heat storage heat exchanger, which can be divided into many types. There are two types of heat storage media commonly used in industrial production: random heat storage media and structured heat storage media. Traditional heat storage heat exchangers generally use a single heat storage medium, that is, a single structured heat storage medium or a single scattered heat storage medium, but the use of ...

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Problems solved by technology

Traditional heat storage heat exchangers generally use a single heat storage medium, that is, a single structured heat storage medium or a single scattered heat storage medium, but the use of these two heat storage media alone has its own shortcomings, such as a single The heat medium has the disadvantages of easy clogging, difficult maintenance, and high manufacturing cost. A single scattered heat storage medium has the problems of uneven fluid distribution and small specific surface area. Therefore, the traditional heat storage heat exchanger cannot play a good role in heat storage and exchange. The heat storage and release performance of the heater, the secondary energy cannot be fully recycled, and the comprehensive energy saving effect cannot be improved

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