The shell and tube heat exchanger is composed of the shell, the heat transfer tube bundle, the tube sheet, the baffle plate (baffle plate) and the tube box. The shell is mostly cylindrical, and a tube bundle is installed inside, and the two ends of the tube bundle are fixed on the tube plate.
There are two kinds of hot and cold fluids for heat exchange, one is flowing inside the tube, called the tube-side fluid; the other is flowing outside the tube, called the shell-side fluid.
In order to improve the heat transfer coefficient of the fluid outside the tube, several baffles are usually installed in the shell. The baffle can increase the velocity of the shell-side fluid, forcing the fluid to pass through the tube bundle laterally multiple times according to the prescribed distance, and enhancing the degree of fluid turbulence.
There can be many variations on the shell and tube design. Typically, the ends of each tube are connected to plenums (sometimes called water boxes) through holes in tubesheets. The tubes may be straight or bent in the shape of a U, called U-tubes.
In nuclear power plants called pressurized water reactors, large heat exchangers called steam generators are two-phase, shell-and-tube heat exchangers which typically have U-tubes. They are used to boil water recycled from a surface condenser into steam to drive a turbine to produce power. Most shell-and-tube heat exchangers are either 1, 2, or 4 pass designs on the tube side. This refers to the number of times the fluid in the tubes passes through the fluid in the shell. In a single pass heat exchanger, the fluid goes in one end of each tube and out the other.
Surface condensers in power plants are often 1-pass straight-tube heat exchangers (see Surface condenser for diagram). Two and four pass designs are common because the fluid can enter and exit on the same side. This makes construction much simpler.
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Your shell and tube heat exchanger is composed of the shell, the heat transfer tube pack, the tube sheet, the baffle plate (baffle plate) along with the tube box. The shell is certainly caused by cylindrical, and a tv bundle is installed within, and the two ends of the tube bundle are fixed within the tube plate.
There are two forms of hot and cold liquids for heat exchange, you are flowing inside the tube, called the tube-side h2o; the other is sweeping outside the tube, known as the shell-side fluid.
To be able to improve the heat transfer coefficient from the fluid outside the esophagus, several baffles are usually installed from the shell. The baffle can boost the velocity of the shell-side h2o, forcing the fluid to move across the tube bundle laterally multiple times in line with the prescribed distance, and enhancing their education of fluid turbulence.
There might be many variations on your shell and tube pattern. Typically, the ends of each tube are connected for you to plenums (sometimes called drinking water boxes) through holes inside tubesheets. The tubes may perhaps be straight or bent while in the shape of a OUGH, called U-tubes.
In nuclear electricity plants called pressurized h2o reactors, large heat exchangers called steam generators are two-phase, shell-and-tube warm exchangers which typically get U-tubes. They are helpful to boil water recycled originating from a surface condenser into heavy steam to drive a turbine to produce power. Most shell-and-tube heating exchangers are either A SINGLE, 2, or 4 pass designs about the tube side. This refers to how many times the fluid within the tubes passes through the fluid while in the shell. In a one pass heat exchanger, the fluid gets into one end of just about every tube and out the opposite.
Surface condensers in power plants tend to be 1-pass straight-tube heat exchangers (see Outside condenser for diagram). Two and four move designs are common because of the fluid can enter and exit within the same side. This makes construction incredibly easier.
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