Regenerative heat exchanger and combustion equipment such as industrial furnace and pulverized coal fired boiler

摘要

PPROBLEM TO BE SOLVED: To provide a heat storage type heat exchanger that can easily cancel the increase in pressure difference due to adhesion of fly ash, etc. onto a heat storage body without stopping operation of a combustion device such as industrial furnace, pulverized coal burning boiler using a solid fuel such as pulverized coal. PSOLUTION: The heat storage type heat exchanger 2, 3 comprise first heat storage bodies 24, 34 that can be regenerated by cleaning or replacing contained in the upstream side of the flow of combustion exhaust gas, and second heat storage bodies 25, 35 contained in the downstream side of the first heat storage bodies, and they make flow of air for combustion from first ends of containers 20, 30 for containing the heat storage bodies 24, 25 to the other ends after heating the heat storage bodies by making flow of the combustion exhaust gas from the other ends to the first ends and heat the air for combustion by the heat stored in the heat storage bodies. PCOPYRIGHT: (C)2005,JPO&NCIPI