Thermotech Engineering (pune) Pvt Ltd
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Chinchwad, Pune, Maharashtra
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Heat Exchanger

Our product range includes a wide range of chemical heat exchanger, fixed tube sheet heat exchanger, kettle reboilers, u' tube heat exchanger, corrugated tube heat exchanger and shell and tube heat exchanger.

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We are offering a wide range of Chemical Heat Exchanger.

Applications:

  • Widespread application, except in case that require the removal of the tube bundle
  • Vacuum operations on the outer circuit or when gaskets are not desired
  • As a vacuum steam condenser.



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Straight tubes are expanded on two opposite tube-sheets, which are welded directly to the shell to form this Fixed Tube-sheet Heat Exchanger.

Applications:


  • Widespread application, except in case that require the removal of the tube bundle
  • Vacuum operations on the outer circuit or when gaskets are not desired
  • As a coolant for oil, transformers or lubrication system or small instant diesel or heater using steam
  • As a vacuum steam condenser

Advantages :

  • Absence of gasket and packing on the external tube circuit, since the shell is directly welded on the tube plate
  • Impossibility of intermixing between the two circuits, thereby preventing internal gasket losses
  • Ease of single tube replacement
  • Heat expansion between the shell and the tube bundle can be absorbed by using one or more expansion joints

Limitations :

  • External circuit tube inspection is not possible
  • Only chemical cleaning is possible
  • Incapable of withstanding great temperature differences between the two fluids if expansion bellow is not used
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Image depicts a typical steam heated kettle reboiler. Kettle reboilers are very simple and reliable. They may require pumping of the column bottoms liquid into the kettle, or there may be sufficient liquid head to deliver the liquid into the reboiler. In this Reboiler Heat Exchanger, steam flows through the tube bundle and exits and condensate. The liquid from the bottom of the tower, commonly called the bottoms, flows through the shell side. There is a retaining wall or overflow wall separating the tube bundle from the reboiler section where the residual reboiled liquid (called the bottoms product) is withdrawn, so that the tube bundle is kept covered with liquid.
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The tube bundle of Heat Exchanger consist of U shaped tubes, which can be removed by disassembling the head.

Applications :


  • For high pressure and temperature & for large temperature differences along the tube bundle since each tube can expand independently of the others: and, for cases requiring a simple, economic model and using fluids with a low pipe deposit factor (because a single tube plate offer high savings)
  • For closed circuit water heating in radiator or heat converter systems, using steam, heated or superheated water inside the pipes
  • U shaped heat exchanger can also be used with steam outside and water inside the tubes

Advantages :

  • Removable tube bundle facilitates inspection and maintenance of pipes exteriors
  • No inner gasket
  • Economic price
  • Bundle may be expanded tube by tube

Limitations :


  • Mechanical cleaning of pipe interiors not possible because of the bent areas, only chemical cleaning possible.
  • Single pipe replacement not possible
  • Internal pipe ruptures may require the complete replacement of the tube bundle
  • Horizontal installation is possible
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Higher heat transfer co-efficient: corrugated tubes increase the turbulence in the flow that enables a more effective mixing and agitation that generates a higher heat transfer coefficient compared to smooth tubes at the same conditions. In many cases, the heat transfer co-efficient in Corrugated Tube Heat Exchanger is almost doubled.

Features:

  • Compact heat exchanger. The heat transfer area of corrugated tube heat exchanger is 30% to 50% less than plain tube heat exchanger (% depends on case to case design)
  • Economical: The cost of Corrugated tube heat exchanger is 25% To 50% less than the cost of a plain tube heat exchanger for the same duty. When exotic materials are used significant savings can be made on the overall cost of the unit.
  • Reduced Fouling: Corrugation carries a self cleaning effect that reduces fouling on the tube surface. Less fouling means    smaller heat exchanger and longer production cycles.
  • Low maintains & operating cost.
  • Small product and service hold up volumes due to the compact size of the Heat Exchanger.
  • Longer running times without stopping for cleaning. Higher response to CIP cleaning.
  • Homogeneous Thermal treatment due to the mixing capacity.
  • Smaller footprint due to Corrugated Tube Heat Exchanger's smaller sizes.
  • Food products processed by CTHE’S retain most of their natural properties & vitamins because the heat transfer process is faster and so the products is suitable to heat for less time
  • Efficient: In condensing applications, CTHE’s are more efficient than the plain tube heat exchanger.The thin film formed over the tube by the condensing vapors breaks off due to the corrugation there by exposing fresh surface of the tube for heat    transfer, hence making them more efficient
  • Versatile: CTHE’s are versatile since they are able to process different products in the same installation.
  • Wide range of Material of Construction
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We are offer design and fabrication of shell and tube type heat exchangers build in accordance with ASME code section and division1, ASME code stamps include U.R, Um and TEMA code standards.
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Thermotech Engineering (pune) Pvt Ltd

Santosh Changedia(Director)
Plot No. 65/3, 4, 5, D- II Block, M. I. D. C, Chinchwad
Pune - 411019
Maharashtra, India
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