Combustor with low-vortex combustion feature

Abstract

The invention relates to a combustor with a low-vortex combustion feature. An upper cover (1) and a lower cover (2) are both round semi-volute spiral disc bodies; an air inlet passage is smoothly combined with each volute from the tangent direction of the round volute to form an integrated cover body; the upper cover (1) and the lower cover (2) are buckled with each other to form a whole body witha volute-shaped combustion space, and the air inlet passage communicates to one end of a Venturi mixing pipe (3); the other end of the Venturi mixing pipe (3) is connected to a nozzle choke component(4); eccentric circle centers are formed by the round volutes of the upper cover (1) and the lower cover (2) spirally; eccentric holes (11 and 21) which are butted and communicate with each other areseparately formed in the eccentric circle centers of the upper cover (1) and the lower cover (2); and a plurality of combustion holes (6) are formed in a disc surface of the upper cover (1) around the eccentric hole (11) at intervals. The combustor is portable and can be carried outside for use; and the combustor has the feature of complete combustion, so that high-low altitude applicability canbe improved, and is applicable to versatile atmosphere environments.

Description

technical field [0001] The invention belongs to the technical field of civil burners, and in particular relates to a low-swirl burner with adaptability to high and low altitudes and high thermal efficiency. Background technique [0002] When traveling outdoors for a long time, it is usually necessary to carry a heating stove for heating and cooking food. At present, the portable outdoor integrated stoves sold in the form of commodities are mainly concentrated in three relatively mature brands: American MSR, Jiebao, and Huofeng. [0003] MSR's products adopt the far-infrared metal mesh combustion mode, which belongs to complete combustion. The chemical equivalent ratio of air: fuel is >1, the fuel is fully burned, and the heat energy utilization rate is high. It can automatically adapt to the state of thin air at high altitudes. The disadvantage is that it cannot be operated below 50% of the nominal power. You can boil water, but not stew rice. [0004] However, there i...

AI Technical Summary

Problems solved by technology

Air: The stoichiometric ratio of fuel is less than 1, secondary air is required for supplementary combustion, and cannot automatically adapt to the state of thin air at high altitudes

For example, ordinary gas stoves and water heaters not controlled by automatic oxygen sensors sold in plain areas cannot be used normally in Lhasa. Similarly, gas stoves used in Lhasa cannot be used normally in Chengdu.

(Attached document: "Study on the countermeasures of the influence of altitude on the heat load of gas appliances" "Gas and Heat" 2010 Issue 7), at least, the combustion efficiency will be reduced and the heating time will be prolonged

[0005] That is to say, these combustion devices and stoves are used in many outdoor places and because of the different altitudes, the oxygen content required for combustion changes, but because the burner does not completely burn characteristics, it is difficult to adapt to different atmospheric environments

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