Temperature-controllable burner achieving central flow guide and adjustment and cyclone classification

Abstract

The invention relates to a temperature-controllable burner achieving central flow guide and adjustment and cyclone classification. The temperature-controllable burner achieving central flow guide and adjustment and cyclone classification effectively solves the multiple problems that gas of different heat values and combustion-supporting air cannot be evenly mixed, the gas classified combustion effect is poor, distribution of a gas flow field is not uniform, and the combustion temperature cannot be controlled. A premixed gas cyclone loop channel with an upper opening is arranged on the upper portion inside a burner wall. One or more premixed gas inlet channels are connected to the outer side of the premixed gas cyclone loop channel. The outer end of each premixed gas inlet channel extends out of the burner wall to be connected with an external gas flow premixer. The end of the external gas flow premixer is provided with a gas inlet pipe. The outer wall of the external gas flow premixer is connected with an air inlet pipe. The top of the burner wall is provided with a secondary gas flow spray inlet. A stacked body composed of multiple ceramic porous bodies is built in a stacked manner inside the burner wall. The top of the stacked body is in a pit shape. The bottom of the stacked body is provided with a burner gas flow outlet. By the adoption of the temperature-controllable burner achieving central flow guide and adjustment and cyclone classification, the combustion temperature and the combustion intensity can be adjusted, the combustion stability is improved, energy is saved, environmental friendliness is achieved, safety and stability are achieved, and the discharge amount of harmful gases is reduced.

Description

technical field [0001] The invention relates to a controllable combustion device used in heat utilization equipment of industrial furnaces and kilns, in particular to a burner with swirl classification and temperature controllable by central diversion regulation. Background technique [0002] At present, from the perspective of energy saving and consumption reduction, industrial furnaces and kilns require stable combustion, temperature control, and uniform flow field performance and structure under the combustion of different fuels and different gases, so as to finally achieve the goals of high efficiency, energy saving, environmental protection, and increased production. For this reason, in addition to the optimized combustion process, the burner in the industrial furnace should also have adjustable combustion performance. For example, when burning various gases, it is necessary to obtain a high or stable combustion temperature, or to adapt to different varieties Keep the r...

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Problems solved by technology

[0003] In order to adapt to the development and application status of various gas fuel combustion and low-nitrogen combustion burners, the present invention proposes a swirl graded and temperature-controllable burner with central diversion adjustment, which can effectively solve the problem of gas with different calorific value, combustion-supporting Various problems such as uneven mixing of air and gas, poor graded combustion effect of gas, uneven distribution of air flow field, uncontrollable combustion temperature, etc.

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