Upper air inlet burner

Abstract

An upper air inlet combustor comprises a furnace end, a furnace body, an outer ring fire cover and a center fire cover. The furnace body is provided with an injection pipe and a combustion gas supply channel. A gas outlet of the combustion gas supply channel deviates from the center of the furnace body. A horn mouth injection cylinder is arranged in the injection pipe and is provided with an injection cavity which is gradually enlarged outwards, and the injection cavity is aligned to a gas nozzle. A gas outlet is located in a center fire cover cavity, the center fire cover covers the center fire cover cavity so that the gas outlet can communicate with the center fire cover cavity, and gas enters the center fire cover cavity from the gas outlet and is blocked by the center fire cover to be evenly dispersed into the center fire cover cavity. An outer fire distributor and an inner fire distributor are of a detachable split structure. According to the upper air inlet burner, the injection pipe is horizontally arranged, the length of the injection pipe is increased, the injection performance is improved, heat dissipation strips are additionally arranged on outer ring injection pipes, a center injection air outlet is arranged in an offset mode, combustion is more sufficient, flames are stable, the heat efficiency of combustion is effectively improved, and the structural space arrangement is reasonable.

Description

technical field [0001] The invention relates to an upward air intake burner. Background technique [0002] According to market research and patent retrieval, the existing furnace head uses the center as the gas outlet, the gas is not uniformly dispersed, the gas-air mixing time is short, and the mixing uniformity is not enough to make the combustion insufficient; and the temperature of the injector tube is high, so that The hot air resistance is relatively large, the air supply is not smooth, the safety is reduced, and various factors such as high manufacturing cost are affected. The central injection tube is injected vertically upwards. Due to the structural limitation, the injection tube is short and the mixture of gas and air is not sufficient, which may easily cause incomplete combustion; the outer ring injection tube is easy to receive heat, resulting in a higher temperature of the mixture of air and gas in the injection tube. , It is easy to cause tempering, and it is...

AI Technical Summary

Problems solved by technology

[0002] According to market research and patent retrieval, the existing burner uses the center as the gas outlet, the gas is not uniformly dispersed, the gas-air mixing time is short, and the mixing uniformity is not enough to make the combustion insufficient; and the temperature of the injector tube is high, so that The hot air resistance is relatively large, the air supply is not smooth, the safety is reduced, and the production cost is high and other factors are affected

The central injection tube is injected vertically upwards. Due to structural limitations, the injection tube is short and the mixture of gas and air is not sufficient, which may easily cause incomplete combustion; the outer ring injection tube is easy to receive heat, resulting in a higher temperature of the mixture of air and gas in the injection tube. , it is easy to cause tempering, and it is impossible to install an anti-dry probe

Images