Upper inlet wind type burner

Abstract

The invention discloses an upper inlet wind type burner comprising a central fire cover, an outer fire cover, a furnace end, a base and a gas distribution pipe which are sequentially arranged from top to bottom, wherein the furnace end is provided with a plurality of injection pipes, the base is provided with a gas mixing chamber and the gas distribution pipe is provided with a gas nozzle. A gas distribution slice is arranged between the outer fire cover and the furnace end, a fire cover seat is arranged between the central fire cover and the furnace end, and the fire cover seat is in a barrel structure with a ladder-shaped inner hole. By controlling the furnace temperature of the burner and improving the size, the invention greatly reduces the difference between cold working conditions and under hot working conditions of the upper inlet wind type burner, and thoroughly solves the problem of gas and air layering. The invention ensures that the flame is short and strong without yellow flame, backfire and other defects, has small size, large heat load and excellent burning condition and prevents the nozzle from being blocked.

Description

technical field [0001] The invention relates to the technical field of gas stoves, and more specifically relates to an upward air intake burner. Background technique [0002] Since domestic manufacturers introduced pure upward air intake burners from abroad in the late 1990s, they were quickly accepted by the market because of their simple and beautiful appearance. After domestic manufacturers have launched pure upward air intake burners with independent intellectual property rights , There are more upward air-intake burners on the market, but they all have defects such as poor combustion conditions, weak flames, and easy yellow flames. Although some patents have made some improvements to address these defects, due to the poor heat dissipation performance of the upward air combustion system, the temperature of the burner will gradually increase with the prolongation of use time, resulting in a double increase in the viscosity of the gas near the burner. The thermal resistan...

AI Technical Summary

Problems solved by technology

[0002] Since domestic manufacturers introduced pure upward air intake burners from abroad in the late 1990s, they were quickly accepted by the market because of their simple and beautiful appearance. After domestic manufacturers have launched pure upward air intake burners with independent intellectual property rights , there are more upward air-intake burners on the market, but they all have defects such as poor combustion conditions, weak flames, and easy yellow flames.

Although some patents have made some improvements to address these defects, due to the poor heat dissipation performance of the upward air combustion system, the temperature of the burner will gradually increase with the prolongation of use time, resulting in a double increase in the viscosity of the gas near the burner. The thermal resistance increases, which in turn leads to a decrease in the thermal load, so the thermal load of the upward air intake burner in the cold state and the hot state differs greatly, and some even reach a 40% gap

This situation has brought great difficulties to the design of the upper air intake burner. If the air intake and intake air volume of the burner are designed according to the cold state, the air intake volume will be insufficient due to a sharp increase in air viscosity after working for a period of time. Yellow flame phenomenon occurs; if the air intake and intake air volume of the burner are designed according to the thermal state, the flame will be weak when the burner starts to work, and it is easy to cause the flame height to be inconsistent

At present, there is no effective way to solve this problem. We can only compromise a situation between the cold state and the hot state to design the upper air intake burner.

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