Ultra-low pressure flare gas burning device

Abstract

An ultra-low pressure flare gas burning device comprises a boiler cylinder (9), a burner (8) and a flare gas inlet pipe (14). The burner (8) is connected with one end of the flare gas inlet pipe (14). The ultra-low pressure flare gas burning device is characterized in that a rib plate (7) is arranged in the burner (8), a boiler bottom (15) of the boiler cylinder (9) is located on the upper portion of the burner (8) through a connecting bolt (11) connected with the rib plate (7) and a nut (10). A cone body (5) is sleeved on the flare gas inlet pipe (14) on the lower portion of the burner (8). A nozzle (6) communicated with an inner cavity of the cone body (5) is arranged on the upper end closed end face of the cone body (5). The lower end of the cone body (5) is communicated with one end of a casing pipe (4) which is sleeved on the flare gas inlet pipe (14) as well. The lower end of the casing pipe (4) is in a closed state. The casing pipe (4) is connected with a branch pipe (12) used for supplying steam or air or gas. According to the ultra-low pressure flare gas burning device, pressure required for combustion is low, auxiliary steam using amount is small, and meanwhile full combustion of the flare gas can be guaranteed. The ultra-low pressure flare gas burning device is particularly suitable for disposal with the ultra-low pressure flare gas.

Description

technical field [0001] The invention relates to an environmental protection purification equipment for petrochemical, metallurgy, light industry, oil refining and other industries, in particular to a flare gas discharge combustion device, specifically an ultra-low pressure flare gas combustion device. Background technique [0002] At present, when the general-purpose ground flare burner handles low-pressure or ultra-low pressure flare gas, due to the extremely low velocity of the gas at the burner outlet and the insufficient amount of low-injected air, it will cause incomplete combustion, black smoke, and low flame rigidity. Especially when burning low-pressure flare gas containing heavy components, it will cause carbon deposits in the burner, which poses a great safety hazard. Even under the smoke elimination effect of the auxiliary smoke elimination steam, although a little pollutant can be reduced, it is far from achieving the purpose of complete smoke elimination. At...

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Problems solved by technology

[0003] The purpose of the present invention is to design a device that can satisfy both high-pressure flare gas combustion and low-pressure or ultra-low pressure flare gas combustion in view of the problem that the existing flare gas combustion device cannot fully burn low-pressure flare gas and easily causes environmental pollution. An ultra-low pressure flare gas combustion device

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