A spiral mixing burner

Abstract

The invention discloses a spiral-mixing high-efficiency combustor. The spiral-mixing high-efficiency combustor comprises a cylindrical combustor shell with an opening in the upper end, wherein a flange plate connected with an incinerator in a matching way is arranged on the upper end surface of the combustor shell in a radial extension way; a fuel gas inlet pipe and a combustion air inlet pipe arearranged on the lower part of the outer side of the combustor shell and are arranged on two sides of the combustor shell; the air inlet directions of the fuel gas inlet pipe and the combustion air inlet pipe are opposite; a jacket is arranged in the combustor shell; a cross section of the jacket is a spiral line-shaped channel with a cavity arranged internally; the side end surfaces of a startingpoint position and an original point position of the jacket are closed; the combustion air inlet pipe is extended and communicates with the inner cavity of the jacket through the side end surface ofa starting point of the outer edge of the jacket; the upper end surface of the jacket is of an opening structure and is higher than the upper end surface of the combustor shell; and the lower end surface of the jacket is fixedly connected with the bottom part of the combustor shell in a sealing way. The spiral-mixing high-efficiency combustor provided by the invention has the beneficial effects that a fuel gas and combustion air form multi-layer spiral distribution, the contact area is large, the sufficiency in combustion is realized, and the requirement on the surplus amount of oxygen is low.

Description

technical field [0001] The invention relates to a spiral mixing burner, which belongs to the technical field of combustion devices for incinerators. Background technique [0002] Raw coal gas refers to dust-containing gas. Many types of chemical companies will produce a lot of raw gas during production. These raw gas cannot be used by users. Enterprises generally burn it to generate heat energy and convert it into steam; raw gas needs to be burned The burner is used in the incinerator. The existing burner structure is mainly a burner shell. The raw gas is led to the center of the shell, and the combustion air is passed around it, which belongs to single-layer combustion. This kind of burner structure needs to select the size of the burner with matching specifications according to the amount of raw gas produced by the enterprise; if the amount of raw gas is large and the size of the burner is small, the gas velocity will be high and the flame will be long, so it is necessary ...

AI Technical Summary

Problems solved by technology

This kind of burner structure needs to select the size of the burner with matching specifications according to the amount of raw gas produced by the enterprise; if the amount of raw gas is large and the size of the burner is small, the gas velocity will be high and the flame will be long, so it is necessary to match the incinerator with a large size. Increase the cost; if the raw gas volume is small and the size of the burner is large, although the gas velocity is small, it will lead to insufficient combustion of the inner layer of the gas flame, and the tail gas will easily form secondary combustion after being discharged from the incinerator, resulting in waste of heat energy and safety. Hidden danger

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