| 摘要 |
PURPOSE:To improve an overall thermal efficiency by mounting alternately burning burners to be alternately burned with two burners having heat accumulators as one set in alternate combustion chambers, and providing hot air generators in the chambers. CONSTITUTION:Alternate burning burners have two burners A, B having heat accumulators 7 as one set in which, when one burner A is burned, the other burner B sucks combustion gas and the operation is alternately executed by an operation of a valve 8. When the burner A stars burning in the chamber, a generator heat exchanges the gas with the air to generate hot air. That is, the air is heated through an inverted U-shaped tube or a straight tube or an air passage, etc., to be heated as hot air for use. A part of the combustion gas is recovered at its sensible heat by the accumulator 7 through the burner B, and discharged to an exhaust fan 10. The burners A, B repeatedly and alternately burn. |
