How many gaskets are in a floating head heat exchanger?

How many gaskets are in a floating head heat exchanger?

This joint has two gaskets, one between the shell flange and tube-sheet, and the other between the tube-sheet and the channel flange. Both gaskets are compressed by a single set of fasteners. These are exposed to the atmosphere; the pressure is only internal.

What is the purpose of floating head?

A floating head exchanger is used to make removal of the tube bundles possible and to allow for significant expansion of the tubes. At the end of the floating and stationary tubes sheet, exchanger tubes are fixed.

What is the advantage of a floating head heat exchanger?

Floating Head Heat Exchanger Advantages The heat exchanger can be operated under high temperature and high pressure, the average temperature is less than or equal to 450℃，and pressure is less than or equal to 6.4MPa. This kind of heat exchanger is suitable for the serious scaling occasion.

What is fouling factor?

The fouling factor represents the theoretical resistance to heat flow due to the buildup of a fouling layer on the tube surfaces of the heat exchanger. In practice, fouling factors are often overstated by the end user in an attempt to minimize the frequency of cleaning.

What is test ring in heat exchanger?

This device is an indispensable tool for checking the tightness of the tube connection on the floating tube plate. The test ring is necessary to carry out the ten-year hydraulic test in the presence of the authorized inspector.

What are baffles in heat exchanger?

Baffles are flow-directing or obstructing vanes or panels used to direct a flow of liquid or gas. It is used in some household stoves and in some industrial process vessels (tanks), such as shell and tube heat exchangers, chemical reactors, and static mixers.

What are the types of heat exchanger?

What Are The Different Types Of Heat Exchanger?

  • Finned Tube Heat Exchanger Or Air Cooled Heat Exchanger. Suitable for: air/gas to fluid.
  • Shell And Tube Heat Exchanger. Suitable for: fluid to fluid / fluid to gas.
  • Plate Heat Exchanger Or Gasket Plate Heat Exchanger. Suitable for: fluid to fluid / fluid to vapour.

Why shell and tube heat exchanger is popular?

The use and popularity of shell and tube heat exchangers is due to the simplicity of their design and exceptionally efficient heat exchange rate. The process of a shell and tube heat exchanger involves the use of a liquid or steam that flows into the shell to heat the tubes.

What is floating head?

The spatial expansion between tubes is possible via the floating head design,therefore eliminating the need for a development joint.

  • The tube bundle is removable. (individual tubes too)
  • Tube side mechanical cleaning is possible.
  • Mechanical cleaning of the shell side is possible.

    • Should I replace heat exchanger?

    – Your energy bills are creeping up – Your furnace repairs have increased over the past couple of years – Your burner flame is yellow (it should be blue) – It is making strange noises – The blower is running all the time or turning on and off frequently – You or your family have been getting sick more often – Your house is more dusty than usual

    How to calculate the heat duty for heat exchangers?

    Determining of the thermal duty.

  • Calculation of the Logarithmic Mean Temperature Difference (LMTD) This is defined between 2 sections of the heat exchanger,and it depends on the inlet and outlet temperatures of the product
  • Determining of the overall heat transfer coefficient.
  • Calculation of the required exchange area

    • What type of heat exchanger is more efficient?

    When the amount of fluids are more we will use plate n frame heat exchanger .

  • When required heat transfer cofficient is more then double pipe heat exchanger is efficient .
  • When amount f fluids are huge and temperature difference required is more and pressures and temparatures are more we will go for shell and tube heat exchanger .