Two-stage efficient atomization oil gun

Abstract

The invention discloses a two-stage efficient atomization oil gun, wherein a gun head is provided with a bubble chamber and a nozzle; a gun body is provided with an inner tube and an outer tube; a connector respectively communicated with the inner tube and the outer tube is arranged at the head part of the gun body; the inner tube and the outer tube are respectively connected with an oil inlet and an atomization gas inlet; an oil gas distributor is arranged between the tail part of the bubble chamber and the head part of the connector, and is provided with an oil spray port, a vortex chamber and an energy gathering chamber coaxially connected in sequence; the oil spray port, the inner tube and the connector are formed to a fuel passage; radial gas inlets are uniformly distributed in the peripheral direction of the side wall of the tail part of the vortex chamber; gas feed holes are uniformly distributed in the peripheral direction of the middle part of the vortex chamber; an air separation cavity is encircled on the side wall of the tail part of the vortex chamber; annular inner cavities communicated with the outer tube and axial communicating holes communicated with the air separation cavity are uniformly distributed in the peripheral direction of the connector; the gas feed holes are communicated with an inner cavity of the energy gathering chamber and the air separation cavity; and the radial gas inlets are communicated with the vortex chamber and the air separation cavity. The two-stage efficient atomization oil gun has the characteristics of small oil particles, higher burning efficiency and more environmental protection, and can be applied to power station boilers.

Description

technical field [0001] The invention relates to a power station boiler, in particular to a two-stage high-efficiency atomizing oil gun. Background technique [0002] At present, the ignition oil guns widely used in power station boilers at home and abroad are simple mechanical atomization oil guns. This kind of oil gun is a relatively mature but backward oil gun. It has poor adaptability to oil types and can only burn light diesel oil. , and the combustion efficiency is not high in the cold state, the atomization particle size Sauter coefficient SMD≤200μm, the combustion efficiency can only reach 84%. Moreover, black smoke is emitted at the initial stage of ignition, which not only wastes fuel, but also pollutes the environment, and poses a huge threat to the safety of desulfurization and denitrification facilities. At the same time, this mechanical atomization oil gun also has the problems of large maintenance and high maintenance costs. . In recent years, the country has...

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Problems solved by technology

[0002] At present, the ignition oil guns widely used in power station boilers at home and abroad are simple mechanical atomization oil guns. This kind of oil gun is a relatively mature but backward oil gun. It has poor adaptability to oil types and can only burn light diesel oil. , and the combustion efficiency is not high in the cold state, the atomization particle size Sauter coefficient SMD≤200μm, the combustion efficiency can only reach 84%

Moreover, black smoke is emitted at the initial stage of ignition, which not only wastes fuel, but also pollutes the environment, and poses a huge threat to the safety of desulfurization and denitrification facilities. At the same time, this mechanical atomization oil gun also has the problems of large maintenance and high maintenance costs.

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