Supercharged spiral umbrella flame stepless regulation energy-saving combustor

Abstract

The invention discloses a supercharged spiral umbrella flame stepless regulation energy-saving combustor. The combustor is provided with an environment-friendly type energy-saving combustion structurewhere gas stepless regulation, overload supercharging, radiation combustion and ultrahigh furnace temperatures are achieved. The combustor is composed of a nozzle shell, a nozzle, an ejector, a cyclone, a supercharger, an expansion gradually-shrinking cover, an expansion flame path cover and a cooking bench. A needle valve is arranged in the shell. A valve body can rotate or be adjusted in the shell. A gas pipe communicating with a gas system is manufactured at the middle section of the shell. One end of the gas pipe is connected with the ejector, and a mixing pipe and a diffuser pipe are manufactured at the middle section of the ejector. The middle section of the diffuser pipe communicates with a diffuser, and a spraying head is manufactured at an outlet of the diffuser pipe. An output of the spraying head is connected with the cyclone, the expansion gradually-shrinking cover and the expansion flame path cover are manufactured on the cyclone, and a spiral shaft is manufactured in thecenter of the cyclone. Energy of gas enters the cyclone to generate high-speed rotation airflow through mixing and purifying of the ejector. Different heat loads can be achieved by adjusting the spray hole flow, and therefore the combustor can have multiple purposes, the high efficiency and energy conservation effects are achieved, and the combustor is widely used for industrial furnaces and catering industry cookers.

Description

technical field [0001] The invention relates to a new type of full-suction swirling flow fan, closed combustion, super furnace temperature environment-friendly, high-efficiency and energy-saving combustion system used on civil and public catering burning appliances with gas stepless regulation and overload boosting , especially for the supercharged scroll umbrella flame stepless adjustment energy-saving burner and stove used on various gases with very different properties. Background technique [0002] Existing civil and catering gas appliances and utensils are generally atmospheric burners, mainly composed of nozzles, injectors, and heads. The nozzle flows out and enters the suction contraction tube. The gas sucks air once by its own energy, mixes the gas and air in the injection tube, and then flows out through the fire hole of the head for combustion. The shortcomings of this kind of burner are: (1) The burner is designed according to a certain gas composition. When the ...

AI Technical Summary

Problems solved by technology

The shortcomings of this kind of burner are: (1) The burner is designed according to a certain gas composition. When the gas composition changes, its calorific value, gravity and combustion characteristics will also change. The heat load of the burner, Combustion conditions such as primary air ratio, combustion stability, flame structure, and carbon monoxide content in flue gas will change. If the primary air is slightly improperly adjusted, incomplete combustion often occurs

(2) When the burner burns, only part of the air is premixed, not all the air required for combustion. Therefore, the heat intensity of the fire hole and the combustion temperature are limited, which often cannot meet the process requirements. When the heat load requirement is large, it is necessary to increase the fire. hole, increase the size of the head, the structure is bulky and heavy, and the consumables consume gas

(3) The head of the burner is generally made of cast iron. The fire cover is made of cast iron, cast copper or stamping parts. The combustion heat loss is large. After a period of use, the fire hole cover is oxidized or deformed. Changes occur, serious incomplete combustion occurs, which not only wastes gas but also pollutes the environment

People have paid close attention to new energy-saving gas for this reason, and Chinese utility model, patent No. 03254617.3 provides a kind of cyclone flame energy-saving burner, mainly is made of combustion head, flame cover, gas pipe, and combustion head is processed into a circle with copper pipe 4-5 oblique spray holes are respectively processed on the circumference of the copper pipe, and the gas inlet pipe is connected below. It is sprayed out, collides and mixes and burns on the inner circular wall of the flame cover to form a whirlwind flame. Compared with ordinary atmospheric burners, this kind of burner has stronger firepower, can improve the efficiency, and has a certain energy-saving effect, but the combustion noise is loud, and the holes are often blocked. , does not work properly and has not been widely used

[0003] To sum up the disadvantages of the existing burners, there are often incomplete combustion in practical applications, especially when the public burning appliance is used on a large fire, it is more serious, which not only pollutes the environment, is harmful to the human body, but also wastes a lot of gas Resources will bring economic losses to users and society. To this end, research on the generalization of gas appliances, focusing on environmental protection and energy saving, improving combustion structure, improving thermal efficiency, and saving energy are important issues that society is concerned about at present.

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