Water Cooler Condenser Fixed Tube Sheet Heat Exchangers Manufacturer INDIA

Fixed TubeTube removal is a process that involves cutting tubes, pulling out tubes and tube stubs, and even knocking tubes out of the vessel. You can look to Elliott for all your tube removal needs ranging from tube cutters to tube tuggers to pneumatic hammers.The tube removal process includes several process steps that must be performed with critical sequencing and tolerances. The TIG process is carefully monitored for power and travel so that only designated areas in the tube are shrunk. For some tubes with minimal tube sheet contact, shrinking is not required.The initial step of our process is the Tungsten Inert Gas (TIG) shrinking of the tube to-tube sheet expansion joints (where applicable), which is performed with our standard plug removal TIG system. For hard rolled and tubes the shrinking process is necessary to relieve the radial stress between the tube and tube sheet.

Application:

The Fixed tube -sheet heat exchanger is applicable to all services where the temperature difference between the shell and tube is small, the temperature difference is slightly great but the pressure of shell pass is not high with media in the shell pass not easy to scale, or the shell pass can be cleaned with chemical method after the scaling is formed. The tube sheets at both ends of the fixed tube-sheet heat exchanger are connected and fixed with the shell by means of the welding method. Sixed tube-sheet type heat exchanger features simple and compact structure, and low manufacturing cost for the same diameter of shell, the biggest number of caladria is available in tubular heat exchangers is widely applied in engineering. The Fixed tube-sheet heat exchanger are that shell pass cannot be cleaned with the mechanical method and the maintenance is difficult.

Advantages:

Other advantages are that the tubes can be cleaned mechanically after removal of thechannel cover or bonnet, and that leakage of the shellside ?uid is minimized since thereare no ?anged joints.A disadvantage of this design is that since the bundle is ?xed to the shell and cannot beremoved, the outsides of the tubes cannot be cleaned mechanically. Thus, its applicationis limited to clean services on the shellside. However, if a satisfactory chemical clean-ing program can be employed, tubesheet construction may be selected for foulingservices on the shellside.In the event of a large differential temperature between the tubes and the shell, thetubesheets will be unable to absorb the differential stress, thereby making it necessary toincorporate an expansion joint. This takes away the advantage of low cost to a significant extent.

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