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Provides the possibility to expand in the axial direction. Floating Head Heat Exchanger.
Ground level FLOATING HEAD Heat Exchanger.
Floating head heat exchanger. Floating head heat exchanger is widely used for the service where the temperature is high between the shell and tube bundle or the dirty service like the petroleum refinery. With high reliability and wide adaptability floating head heat exchanger has accumulated a wealth of experience during the long term using process and promoted its development constantly. A floating head type heat exchanger is a type of shell and tube heat exchanger in which the tube sheet assembly is free and free to move within the shell or shell cover.
These exchangers are widely used for the service where the temperature between the shell and. What is the function of floating head in heat exchanger. In general the tubes in the heat exchanger undergoes expansion when there is a temperature gradient now if both side of the tubes are firmly fixed then it may bulge as there is no provision for expansion in order to avoid this the tube side bundle on one side of heat exchanger is provided with floating head to facilitate the expansion of tubes.
6 Bundle Puller FLOATING HEAD Heat Exchanger Maintenance Activity Description Blind Inlets-Outlets at plant area Disconnect and remove Distributor with gasket Disconnect and remove Back cover with gasket Disconnect and remove Floating Head with gasket Install the bundle puller Pull the bundle out Ground level. F FLOATING HEAD Heat Exchanger General Assembly view Gaskets Tube side Inlet Shell side Inlet Gasket Floating Head Shell Bundle Back Cover Distributor Saddle Tube side Outlet Shell side Outlet Tube Sheet 2 f Floating Head Heat Exchanger Cross Sectional View Floating Head. Floating head heat exchangers are suitable for heavy duties associated with high temperature and pressure and large temperature differences.
Fouling fluids can be handled because cleaning of tubes from inside and outside is possible. Removable tube bundle exchangers further can be categorized in floating-head and U-tube exchanger. It consists of a stationery tube sheet which is clamped with the shell flange.
At the opposite end of the bundle the tubes may expand into. Floating head exchanger In this type of shell tube exchanger one end of the tubes is kept fixed in a tubesheet attached to the shell side. While the other end is free to expand or floating in the shell side.
The floating head exchanger consists of a stationary tubesheet and one floating tube sheet. The tubes and tube sheets can expands freely to accommodate the thermal expansion. The floating tube sheet must be enclosed by a floating head cover.
Floating Head Heat Exchanger. In the floating head exchanger the tube sheet is not welded to the shell at the rear header end but is permitted to move or float. The tube sheet at the front header fluid inlet end on the tube side has a larger diameter than the shell and is sealed in a manner similar to that applied in the fixed tube sheet design.
A heat exchanger is a devices used to transfer heat between mediums. A floating head heat exchanges is a type of shell and tube device with several components including tubes tube sheets shell and shell-side nozzles tube-side channels and nozzles channel covers a pass divider and baffles. For The 3th Years.
Floating Head Heat Exchanger. A floating head is excellent for applications where the difference in temperature between the hot and cold fluid causes unacceptable stresses in the axial direction of the shell and tubes. The floating head can move ie.
Provides the possibility to expand in the axial direction. Floating head heat exchangers are designed for high temperature differentials above 200F 9333C. During operation one tube sheet is fixed and the other floats inside the shell.
The floating end is not attached to the shell and is free to expand. Thus U-tube heat exchangers should not be used for services with a dirty fluid inside tubes. Floating headThe floating-head heat exchanger is the most versatile type of STHE and also the costliest.
In this design one tubesheet is fixed relative to the shell and the other is free to float within the shell. FLOATING HEAD Heat Exchanger Maintenance Activity Description Blind Inlets-Outlets at plant area. Disconnect and remove Floating Head with gasket.
Disconnect and remove Distributor with gasket. Install the bundle puller Pull the bundle out. Disconnect and remove Back cover with gasket.
Ground level FLOATING HEAD Heat Exchanger. This Video Explain about Heat Exchanger and Most commonly using Shell and Tube Exchanger Types And Cross sectional view and 3D view of Floating Head Types He. Means that a TEMA heat exchanger type NEN will not require a floating head or torispherical head elements that are also described in this document for the cases which do required them.
In general for the calculation and design of the different components of heat exchangers in this document the criteria set by TEMA code is. Shell-and-Tube Heat Exchanger Selections. There are three basic types of shell-and-tube heat exchangers.
Fixed tube sheet floating head and U-tube. The list below summarizes the comparison between these three exchangers. Fixed Tube Heat Exchanger.
Individual tubes are replaceable.