cross flow food industry 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.

Product picture

The actual shell and tube heat exchanger consists of the shell, the particular heat transfer tube pack, the tube sheet, the baffle plate (baffle plate) as well as the tube box. The shell is mainly cylindrical, and a pipe bundle is installed inside of, and the two ends on the tube bundle are fixed around the tube plate.

There are two kinds of hot and cold bodily fluids for heat exchange, the first is flowing inside the pipe, called the tube-side water; the other is coursing outside the tube, known as the shell-side fluid.

As a way to improve the heat transfer coefficient belonging to the fluid outside the television, several baffles are usually installed from the shell. The baffle can boost the velocity of the shell-side fluid, 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 are many variations on the particular shell and tube layout. Typically, the ends of every tube are connected for you to plenums (sometimes called h2o boxes) through holes inside tubesheets. The tubes could possibly be straight or bent inside shape of a OUGH, called U-tubes.

In nuclear electrical power plants called pressurized normal water reactors, large heat exchangers named steam generators are two-phase, shell-and-tube high temperature exchangers which typically get U-tubes. They are familiar with boil water recycled coming from a surface condenser into water to drive a turbine to offer power. Most shell-and-tube temperature exchangers are either A SINGLE, 2, or 4 pass designs around the tube side. This refers to the amount of times the fluid in the tubes passes through the fluid inside the shell. In a individual pass heat exchanger, the fluid gets into one end of every single tube and out one other.

Surface condensers in power plants in many cases are 1-pass straight-tube heat exchangers (see Outside condenser for diagram). Two and four pass designs are common since the fluid can enter and exit around the same side. This makes construction much simpler.