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Curved Tube Pressure Balance Corrugated Compensator

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How the Curved Tube Pressure Balance Corrugated Compensator Works

Release time:

2021-09-15

How the Curved Tube Pressure Balance Corrugated Compensator Works

The working principle of the Curved Tube Pressure Balance Corrugated Compensator is mainly to use its own elastic deformation function to compensate the axial, angular, lateral and combined displacements of the pipeline due to thermal deformation, mechanical deformation and various mechanical vibrations. The compensator compensates It has the functions of pressure resistance, sealing, impact resistance, vibration reduction and noise reduction, which can reduce the deformation of the pipeline and improve the service life of the pipeline. Also known as expansion joint, expansion joint is a flexible, thin-walled, transversely corrugated device with telescopic function, which is composed of metal bellows and components. The vertical welding assembly clearance and pre-weld preparation are basically the same as all-position welding.

Curved Tube Pressure Balance Corrugated Compensator can compensate for the temperature difference deformation or other deformation between the equipment and the pipeline because of its flexibility, and can prevent shock, vibration, reduce the thrust of the pipeline on the equipment and adapt to the uneven settlement of the oil tank foundation. The compensator itself is sealed, so it can be widely used in chemical, oil refining, electric power, light industry, atomic energy, metallurgy, machinery, instrumentation, ships, aerospace and other departments. Since power pipes and heat pipes are widely used in various sectors of industry and civil use, the demand for compensators is very large.

The vertical welding seams of the Curved Tube Pressure Balance Corrugated Compensator tube are all in the horizontal welding position. Reflow 5mm before arc breaking to blow out the slag. If the molten iron and the slag cannot be distinguished, the welding current should be increased, and the current should be 110~120A. , the angle between the electrode and the workpiece is kept at 20°, the molten pool in the compensator welding is controlled as an oblique ellipse shape, the size of the molten pool should be uniform, and it should be basically the same every time the arc is extinguished and paused. , When the distance from the tail is 4mm, push the electrode slightly forward, continuously apply the welding cover over 3-5mm, and then control the electrode to extinguish the arc on the underside of the groove.

The Curved Tube Pressure Balance Corrugated Compensator can be covered in a bottom-to-bottom order, and the electrode does not swing, and the straight line method is used for multi-layer welding. The arc of the pass weld should be welded along 1/3 of the down groove, the 1/3 of the pressure pass should be welded, and the arc should be on the upper side of the pass weld, and the third pass and so on. The thickness of each layer of weld bead of the compensator should not exceed 4mm to prevent slag inclusion. It should be noted that the upper part should not be undercut. After each welding, no coating should be applied, and it should be cleaned after all welding.