Premixing secondary flaming burning civil boiler with boiler basins

Abstract

The invention relates to a premixing secondary flaming burning civil boiler with boiler basins. An upper boiler basin support with the periphery fixed on the boiler wall is arranged at the position, on the lower portion of a heat exchange pipe, inside a boiler body of the boiler, an upper mouth of the upper boiler basin support supports the combustor upper boiler basin, a lower basin mouth of the combustor upper boiler basin is connected with the combustor lower boiler basin in a hanging mode, the combustor lower boiler basin contains bunker coal, the wall of the combustor lower boiler basin is provided with a plurality of combustor upper air inlets distributed in the circumferential direction, and a boiler grill with a plurality of lower air inlets is arranged at the lower end of the combustor lower boiler basin; the top of the heat exchange pipe is covered with a flame nozzle edge cover, a conical reflective cover covers an inner circumferential mouth of the flame nozzle edge cover, and a flame nozzle cover covering a flame nozzle covers a lower mouth of the reflective cover; a positive pressure combustor is arranged below the reflective cover and the flame nozzle cover, the reflective cover, the flame nozzle cover and an upper boiler cover form a negative pressure combustor, and the negative pressure combustor is communicated with a smoke vent formed in the boiler body. As the boiler is structurally provided with the positive pressure combustor and the negative pressure combustor, coal can be saved by 30%; when coal ash is cleared up, environment inside a room is not polluted.

Description

technical field [0001] The present invention is mainly a secondary premixed pressurized vortex clean combustion boiler with electronic control developed to solve the current air pollution and haze weather, specifically a coal-burning and various biomass fuel boiler with both heating and cooking functions. Premixed secondary flame-fired civil boilers for furnace basins. Background technique [0002] Most of the various small civil boilers in the prior art are based on natural methods. In terms of combustion methods, there are no more intervention measures such as pressurized combustion, oxygen-increased disturbance, etc., resulting in insufficient combustion and low temperature in the combustion chamber. , is not conducive to the heat exchange of boilers, and the requirements for coal are relatively high when coal is used as fuel, and lump coal must be burned. At present, the average temperature of the combustion chamber of small civil boilers is only 600 degrees. During the ...

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Problems solved by technology

[0002] Most of the various small civil boilers in the prior art are based on natural methods. In terms of combustion methods, there are no more intervention measures such as pressurized combustion, oxygen-increased disturbance, etc., resulting in insufficient combustion and low temperature in the combustion chamber. , is not conducive to the heat exchange of boilers, and the requirements for coal are relatively high when coal is used as fuel, and lump coal must be burned. At present, the average temperature of the combustion chamber of small civilian boilers is only 600 degrees. During the combustion process, a large amount of unburned Coal gas and particles are discharged into the atmosphere, which not only wastes coal, but also pollutes the air, especially when people commonly call it a furnace, and the pollution is even more serious. According to estimates, the average unburned heat loss of the current small civil boilers reaches 15%. , because the furnace temperature is low and the working hours are long, in the process of flue gas circulation, the heat taken away accounts for 35% of the total calorific value, the coal combustion is not sufficient, and the coal tar produced hangs on the cold water wall of the boiler, making the boiler conduct heat The limitation further reduces the thermal efficiency of the boiler, and there are many shortcomings such as heavy dust and slow cooking. While the boiler is burning, liquefied gas or electricity must be used for cooking, which increases emissions, especially in northern China, especially In the surrounding areas of the city, bungalows still occupy a considerable proportion. The smog weather is directly related to the heating of small boilers. In the area where bungalows gather, the air pollution is the most serious in the morning and evening, so the current small boilers for civilian use are in urgent need of improvement.

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