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Lord Fin Tube-Characteristics and application of tube sheet

Tube sheet processing is mainly used in chemical containers. It plays a role of supporting fixed tubes and has great thermal conductivity. It is widely used in tube heat exchangers, boilers, pressure vessels, steam turbines, large central air-conditioning and other industries. In the inspection process of the tube sheet, the main inspection indicators are the hole position, the hole diameter tolerance, and the smoothness in the hole.

Because heat exchanger tubesheet deep hole processing is done in a closed or semi-closed state, it has the following characteristics:

1. The tube plate can directly observe the cutting situation of the tool while drilling and expanding. It can only be judged based on work experience by listening to the sound of cutting, seeing chips, hand vibration, and workpiece temperature, and viewing instruments (oil pressure gauge and electric meter). If the cutting procedure is normal.

2. Because of the tube plates small diameter and long length, it has low rigidity and strength. During cutting, it is easy to produce vibration, ripple, and taper, which affects the straightness and surface roughness of the deep hole.

3. The tube plate cutter has poor heat dissipation conditions, so the cutting temperature rises, reducing the cutters durability.

heat exchanger tubesheet

Heat exchanger tubesheet

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