Cylinder section circular seam heating mechanism of pressure container

Abstract

The invention discloses a cylinder section circular seam heating mechanism of a pressure container. Blockage plates are arranged at two end parts of carbon steel heating arc pipes; the center parts ofthe carbon steel heating arc pipes communicate with one end parts of natural gas conveying pipes; the other end parts of the natural gas conveying pipes are connected with a natural gas source; the carbon steel heating arc pipes are suspended to surround the cylinder section circular seam heating inner wall or outer wall of the pressure container; ventilation holes, distributed at intervals, areformed in the outer walls of the carbon steel heating arc pipes; burners are mounted on all the ventilation holes; fire outlet directions of all the burners are perpendicular to cylinder section circular seam heating surfaces in corresponding places; arc gaps are formed in the bottoms of the burners; and two end parts of the arc gaps are welded on the carbon steel heating arc pipes on two sides ofthe corresponding ventilation holes. The cylinder section circular seam heating mechanism of the pressure container guarantees uniform heating effect in each cylinder section circular seam heating place, improves the heating quality, and is simple in structure, easy to realize and excellent in application prospect.

Description

Technical field [0001] The invention relates to a cylinder section annular seam heating mechanism of a pressure vessel, belonging to the technical field of heating equipment. Background technique [0002] At present, many chemical plants and power plants need to install many large pressure vessels. In the production process of pressure vessels, heating is required for the butt joint of the cylinder section, the surfacing of the inner wall of the cylinder section, and the welding of the pipe flange. Especially for the circumferential seam heating of the inner wall of the adjacent cylinder section of the pressure vessel, it is heated by the combustion of natural gas in the pipeline. The natural gas heating equipment on the market, due to the small natural gas burner nozzle, cannot fully contact the air, and the combustion is insufficient , And insufficient combustion does not produce a large amount of harmful gases, such as carbon monoxide, which also affects the heating effect, a...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the fact that the existing natural gas burner nozzles are too small to fully contact with the air, which affects the heating effect of the ring seam heating of the cylinder joint of the pressure vessel.

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