Heat accumulative gas burner

Abstract

The invention discloses a heat accumulative gas burner which comprises an air distribution device, a nozzle, a gas controlling assembly, a blocking brick, a heat accumulator, an ignition device and a tinder placing device, wherein the main tube of the air ignition device is connected to the right end surface of the nozzle in a sealing manner, and two breeches tubes at the other end are respectively an air inlet tube and a flue gas outlet tube. A cyclone body is arranged inside the hole at the other end which is axial with the opening of the nozzle, the residual holes are sealed by plugs, and the blocking brick and the heat accumulator are arranged in the hole which is perpendicular to the opening of the nozzle. A ring channel is arranged inside the tube wall at one end of the ring opening of the nozzle, air hole groove openings are formed uniformly in the ring channel, and the gas controlling assembly mounted at one end of the openings penetrate the built-in ring channel, so as to introduce gas in the ring cannel. According to the heat accumulative gas burner provided by the invention, spiral ribs are arranged on the inner wall of the openings and the cyclone body, so as to enable the combustion air and the gas to generate rotational air swirl flow, and be beneficial to mixing and blending. According to the device provided by the invention, the ignition device is used to ignite at the first time, and the tinder placing device ignites later on, the ignition is reliable, and the safety is good.

Description

technical field [0001] The invention relates to a burner, in particular to a regenerative burner arranged in an industrial furnace and using gas as energy. Background technique [0002] Industrial furnaces that use gas as energy use the burner to ignite the introduced gas and convert it into the required heat energy. The structure and working status of the burner directly affect the combustion efficiency and service life of the gas. Industrial furnaces are routinely equipped with a pair of burners that work alternately, that is, only one burner is introduced into the gas for combustion at the same time, and the other is used as a discharge channel for exhaust gas, and the function will be switched after the set time. At present, burners containing regenerative bodies are most widely used in medium and low temperature industrial furnaces. There are mainly two types of regenerative burners in the prior art. One is that gas, combustion air and flue gas are all used for reversin...

AI Technical Summary

Problems solved by technology

However, the two burners operate alternately, and frequent ignition has the following problems. The biggest problem is that there is a high configuration requirement for the ignition device. If a certain ignition error fails to ignite the gas in time, the accumulated high-concentration gas will easily cause deflagration. There is a major safety hazard in the deflagration in the furnace

Another problem is that the remaining gas in the burner will be discharged together with the flue gas without burning during the reversing, resulting in a certain degree of gas waste

Although the burner with the above-mentioned second structure does not reverse the direction of gas and there is no gas waste problem in operation, it still has the problem of frequent ignition

Generally speaking, the performance of the regenerative gas burner in the prior art is not good, and there is a big gap with the actual production demand, which needs to be further improved

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