stainless steel evaporator Shell Tube Heat Exchanger

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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The actual shell and tube heat exchanger consists of the shell, the heat transfer tube pile of cash, the tube sheet, the baffle plate (baffle plate) plus the tube box. The shell is mainly cylindrical, and a television bundle is installed indoors, and the two ends of the tube bundle are fixed to the tube plate.

There are two varieties of hot and cold essential fluids for heat exchange, the first is flowing inside the esophagus, called the tube-side smooth; the other is coursing outside the tube, known as the shell-side fluid.

To be able to improve the heat transfer coefficient on the fluid outside the tube, several baffles are usually installed from the shell. The baffle can increase the velocity of the shell-side h2o, forcing the fluid to pass through the tube bundle laterally multiple times in line with the prescribed distance, and enhancing their education of fluid turbulence.

There may be many variations on the actual shell and tube pattern. Typically, the ends of each tube are connected to help plenums (sometimes called waters boxes) through holes inside tubesheets. The tubes could be straight or bent while in the shape of a OUGH, called U-tubes.

In nuclear electric power plants called pressurized waters reactors, large heat exchangers referred to as steam generators are two-phase, shell-and-tube warmth exchangers which typically have U-tubes. They are used to boil water recycled from your surface condenser into heavy steam to drive a turbine to make power. Most shell-and-tube warm exchangers are either JUST ONE, 2, or 4 pass designs about the tube side. This refers to the volume of times the fluid while in the tubes passes through the fluid from the shell. In a solitary pass heat exchanger, the fluid goes in one end of every tube and out other.

Surface condensers in power plants tend to be 1-pass straight-tube heat exchangers (see Exterior condenser for diagram). Two and four go away designs are common for the reason that fluid can enter and exit to the same side. This makes construction much simpler.