CN103900083A

CN103900083A - Fuel gas burner used for glass melting furnace

Info

Publication number: CN103900083A
Application number: CN201410159900.0A
Authority: CN
Inventors: 佘万强
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-21
Filing date: 2014-04-21
Publication date: 2014-07-02

Abstract

The invention relates to a gas burner and provides a gas burner for a glass melting furnace. A tubular mixing chamber is arranged in the center, a gas inlet is arranged at the end of the mixing chamber to feed gas, and a combustion-supporting air inlet is arranged on the side wall of the mixing chamber. The preheated high-temperature combustion-supporting air is fed in, and a nozzle is set at the front end of the mixing chamber to spray the high-temperature mixed gas into the melting furnace, and the nozzle is set in a cone shape. In order to ensure full combustion of the fuel, the inner diameters of the combustion air inlet and the gas inlet are smaller than those of the mixing chamber, and when the gas and the mixed air enter the mixing chamber, a turbulent flow will be formed to fully mix the combustion air and the gas; and the combustion air inlet and the inner wall of the mixing chamber Tangential, the combustion air enters the mixing chamber and flows along the tangential direction, pushing the mixed airflow to form a vortex; the turbulent flow and the vortex interact to form a spiral mixed airflow, which is sprayed into the furnace through the nozzle and rotates in a spiral shape, so that the gas can be fully burned And the temperature of the whole melting furnace is uniform; energy saving, consumption reduction, pollution-free and high yield are realized.

Description

Glass melter fuel burner nozzle

Technical field

The present invention relates to a kind of fuel burner nozzle, be especially applicable to the fuel burner nozzle of glass melter.

Background technology

Existing glass melter, adopts heavy oil or coal dust to make fuel more, and environmental pollution is large, energy consumption is high and yield rate is low.For energy-saving and cost-reducing, raising yield rate, many glass production enterprises drop into huge funds research and development combustion gas smelting furnaces.With combustion gas smelting furnace smelting glass, can what first need solution be the problem that flame temperature and go out flame angle realize low pollution, low energy consumption, low cost, high yield rate of burner.

CN101993187A discloses a kind of oxygen burning flat spray gun, introduces pure oxygen combustion technology and transforms heavy oil or natural gas spraying gun, improves efficiency of combustion; Spray gun is set as to flat total oxygen spray gun, purity oxygen and partial oxidation air mixture enter kiln body by flat channel respectively, and it is front through low-temperature prewarming that partial oxidation air mixture enters kiln body, and purity oxygen approaches molten surface and forms oxygen enrichment high-temperature region, its upper strata is anoxic low-temperature space, forms gradient burning; Supply with the required heat of fusing according to subregion, guarantee the temperature homogeneity of kiln on wide.The weak point of this scheme is: the acquisition of pure oxygen need to increase production cost; Although adopted pure oxygen, there is gradient burning in it, have imperfect combustion phenomenon in kiln, therefore has energy waste and pollutant emission.

CN102607026A discloses a kind of tubular type self-preheating type fuel burner nozzle, adopt multiple flow pipe heat exchanger warm-up combustion-supporting air, the combustion air of normal temperature enters and in burner, is divided into the combustion-supporting and combustion-supporting two parts preheating of secondary of one-level, one-level combustion air is supplied with first-stage firing chamber and is carried out imperfect combustion, and secondary combustion air mixes and carries out completing combustion with unburnt flue gas.The weak point of this invention is: its multiple flow pipe heat exchanger is located at burner inside, utilization flow through its outside flue gas it is heated, because flue gas flow rate is fast, long flow path, the heat that exchange occurs with drift tube type heat exchanger is limited, and therefore all the other efficiency of utilizations are not high; Secondly, its secondary combustion-supporting air is by the ejection at a high speed of the gap in the middle of first-stage firing chamber and smoke backflow end socket, then be mixed to form second-time burning with the imperfect combustion flue gas spraying at a high speed from one-level combustion, two kinds of air-flows are straight ejection, the flame producing is updraft, and its central temperature is high, and temperature outside is low, therefore cause non-uniform temperature in melting furnaces, affect the further raising of product quality.

Summary of the invention

For overcoming the deficiencies in the prior art, the invention provides a kind of glass melter fuel burner nozzle.

The technical solution used in the present invention is: a kind of glass melter fuel burner nozzle, its central authorities establish a tubular-mix chamber, hybrid chamber tail end is established a fuel gas inlet and is passed into combustion gas, hybrid chamber sidewall is established a combustion air entrance and passes into the high temperature combustion air of preheating, hybrid chamber front end is established a nozzle high-temperature gas mixture body is sprayed in melting furnaces, and described nozzle is made as taper; Fully burn in order to ensure combustion gas, the internal diameter of described combustion air entrance and fuel gas inlet is all little than hybrid chamber, and combustion gas and mixing air enter in hybrid chamber all can form turbulent flow, and combustion air and combustion gas are fully mixed; And described combustion air entrance and hybrid chamber inwall are tangent, combustion air enters in hybrid chamber and tangentially flows, and promotes mixed airflow and forms whirlpool; Turbulent flow and whirlpool interact and form spiral mixed airflow, and this spiral mixed airflow is also rotation in the shape of a spiral in nozzle sprays into melting furnaces, make combustion gas fully burn and whole melting furnace temperature even; The internal diameter of combustion air entrance is larger than the internal diameter of fuel gas inlet, and in hybrid chamber, the ratio of high temperature combustion air is greater than combustion gas.The present invention realizes energy-conservation, consumption reduction, pollution-free and high yield rate by aforementioned schemes.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described:

Fig. 1 is three-dimensional view of the present invention;

Fig. 2 is top view of the present invention;

Fig. 3 is A-A section and the B-B partial cutaway schematic in Fig. 2;

Fig. 4 is the C-C generalized section in Fig. 2.

The specific embodiment

As shown in Figures 1 to 4, the present invention can implement in the following way: central authorities establish a tubular-mix chamber 1, hybrid chamber 1 tail end is established a fuel gas inlet 2 and is passed into combustion gas, hybrid chamber 1 sidewall is established a combustion air entrance 3 and passes into the high temperature combustion air of preheating, hybrid chamber 1 front end is established a nozzle 4 high-temperature gas mixture body is sprayed in melting furnaces, and described nozzle 4 is made as taper.Fully burn in order to ensure combustion gas, the internal diameter of described combustion air entrance 3 and fuel gas inlet 2 is all little than hybrid chamber 1, and combustion gas and mixing air enter in hybrid chamber 1 all can form turbulent flow, and combustion air and combustion gas are fully mixed; And described combustion air entrance 3 is tangent with hybrid chamber 1 inwall, combustion air enters in hybrid chamber 1 and tangentially flows, and promotes mixed airflow and forms whirlpool; Turbulent flow and whirlpool interact and form spiral mixed airflow, and this spiral mixed airflow sprays into also rotation in the shape of a spiral in melting furnaces through nozzle 4, make combustion gas fully burn and whole melting furnace temperature even; The internal diameter of combustion air entrance 3 is larger than the internal diameter of fuel gas inlet 2, and the ratio of the interior high temperature combustion air of hybrid chamber 1 is greater than combustion gas.The present invention realizes energy-conservation, consumption reduction, pollution-free and high yield rate by aforementioned manner.

The present invention is not limited to above embodiment, as long as reach technique effect of the present invention based on essentially identical means, all belongs to protection scope of the present invention.

Claims

1. A gas burner for a glass melting furnace, characterized in that: a tubular mixing chamber is provided in the center, a gas inlet is provided at the tail end of the mixing chamber to feed gas, and a combustion-supporting air inlet is provided on the side wall of the mixing chamber and preheated The high-temperature combustion-supporting air, a nozzle is set at the front end of the mixing chamber to inject the high-temperature mixed gas into the furnace; Turbulence will be formed in the mixing chamber to fully mix the combustion air and gas; and the combustion air inlet is tangent to the inner wall of the mixing chamber, and the combustion air enters the mixing chamber and flows along the tangential direction, pushing the mixed airflow to form a vortex; the turbulence and the vortex interact A spiral mixed air flow is formed, and the spiral mixed air flow is sprayed into the melting furnace through the nozzle and also rotates in a spiral shape.

2. The gas burner for a glass melting furnace according to claim 1, characterized in that: the inner diameter of the combustion air inlet is larger than that of the gas inlet, and the proportion of high temperature combustion air in the mixing chamber is greater than that of the gas.