Heat storage type burning device

Abstract

A regenerative burning device can prevent the damage of the device caused by a burning gas entering into a stopped nozzle by supplying the gas, and does not have bad effect to a temperature condition to the device. The regenerative burning device comprises a plurality of nozzles (2); these nozzles (2) are respectively provided with: an air flow path comprising a heat accumulator (5); an air supply valve (6) for connecting the air flow path with an air supply flow path (4) of combustion air; and a discharge valve (7) for connecting the air flow path with a discharge flow path (8) for discharging the burning gas; one part of the nozzle (2) runs in a stopping means; when the detecting temperature of a gas temperature sensor (9) arranged between the heat accumulator (5) of the air flow path and the discharge valve (7) in the stopped nozzle (2) is above the set temperature, the air supply valve (6) of the nozzle (2) is opened.

Description

technical field [0001] The present invention relates to a regenerative combustion device (regenerative burner), and more particularly to a regenerative combustion device capable of intermittent (Japanese: 间引き) operation of the burner. Background technique [0002] There is known a regenerative combustion device (regenerative burner) which has a pair of burners including a regenerative body in an air flow path, discharges combustion gas from one burner through the other burner, and makes The heat storage body recovers heat, and after the temperature of the heat storage body rises, the burner that burns and the burner that recovers heat from the exhaust gas are switched. [0003] Moreover, there is known a combustion device that includes a plurality of pairs of burners, and can operate (intermittent operation) in a manner that a part of the burners of the pairs neither perform combustion nor perform heat recovery but stop according to required heat. In a combustion apparatus ...

AI Technical Summary

Problems solved by technology

Considering large individual differences in valve leakage, changes in furnace temperature and other operating conditions, it is difficult to adjust the amount of air supplied to a burner that is stopped to match the valve leakage

When the amount of air supplied from the air supply side is small, the cooling of the valve on the exhaust side is insufficient, and damage to the valve on the exhaust side cannot be prevented.

In addition, when the amount of air supplied from the air supply side is large, the part of normal temperature air that exceeds the valve leakage on the exhaust side all enters the furnace and the temperature in the furnace decreases locally, so the temperature distribution in the furnace becomes worse. s reason

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