Air and gas double-heat-accumulation combustion device

Abstract

Disclosed is an air and gas double-heat-accumulation combustion device, comprising an air heat accumulation box body (10) and a gas heat accumulation box body (20), wherein an air inlet (11) and an air nozzle brick (12) are arranged on the air heat accumulation box body (10), and a gas inlet (21) and a gas nozzle brick (22) are arranged on the gas heat accumulation box body (20); at least two sections of air heat accumulation cavities (13) are arranged in the air heat accumulation box body (10), and in two adjacent sections of air heat accumulation cavities (13), the cavity top of the air heat accumulation cavity (13) close to the side of the air inlet (11) is higher / lower than that of the air heat accumulation cavity (13) close to the side of the air nozzle brick (12), and each section of air heat accumulation cavity (13) is provided with a heat accumulator (1) therein; and at least two sections of gas heat accumulation cavities (23) are arranged in the gas heat accumulation box body (20), and in two adjacent sections of gas heat accumulation cavities (23), the cavity top of the gas heat accumulation cavity (23) close to the side of the gas inlet (21) is higher / lower than that of the gas heat accumulation cavity (23) close to the side of the gas nozzle brick (22), and each section of gas heat accumulation cavity (23) is provided with a heat accumulator (1) therein. In the case that the heat accumulators (1) contract or are locally damaged, the short circuit of gas flow can be prevented, the heat accumulation capability of the heat accumulators (1) can be maintained, and the service life can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of burners, in particular to an air gas double heat storage combustion device. Background technique [0002] Dual regenerative combustion technology can preheat both air and gas to above 1000°C, resulting in a higher theoretical combustion temperature, thereby realizing the direct application of low-calorific value gas fuels in thermal equipment such as high-temperature furnaces; regenerative combustion technology It can also reduce the exhaust gas temperature to below 150°C, realize the ultimate recovery of the waste heat of the flue gas, and significantly improve the fuel utilization rate. Therefore, the double regenerative combustion technology has a wide range of promotion and application in industries such as iron and steel, non-ferrous metals, and machining. [0003] In the promotion and application of dual regenerative combustion technology, there are still some shortcomings in the dual regenerative ...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to propose an air gas dual heat storage combustion device, which can effectively solve the problems of air flow deviation and air short circuit in the existing double heat storage combustion device, and improve the efficiency of the heat storage body. Utilization and extended service life

Images