What are the parts of a heat exchanger?

What are the parts of a heat exchanger?

Heat Exchanger Parts

• SHELL. SHELL is the component of HE which keeps everything inside it.
• TUBES. TUBES are the second component that carries either hot or cold fluid.
• TUBESHEET. TUBESHEET is located on both sides of HE.
• BAFFLES.
• TIE ROD.
• SPACERS.
• NOZZLES.
• PASS PARTITION PLATE.

What is the use of tie rod in heat exchanger?

Tie rods. Tie rods and spacers are used to hold the tube bundle together and to locate the shell baffles in the correct position. Tie rods are circular metal rods screwed into the stationary tubesheet and secured at the farthest baffle by lock nuts.

What is the function of shell and tube heat exchanger?

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.

What is the use of baffles and pass partition plate in shell and tube heat exchanger?

Baffles serve three functions: 1) support the tube; 2) maintain the tube spacing; and 3) direct the flow of fluid in the desired pattern through the shell side.

What are the parts of the exchanger?

The principal components of shell-and-tube heat exchangers are:

• Tubes.
• Tubesheet.
• Shell and Shell-Side Nozzles.
• Tube-Side Channel and Nozzles.
• Baffles.
• Tie-rods.

What is exchanger and types?

Some of the types of shell and tube heat exchangers available include helical coil heat exchangers and double pipe heat exchangers, and some of the applications include preheating, oil cooling, and steam generation. A close-up view of a tube heat exchanger tube bundle.

What are the parts of a shell and tube heat exchanger?

What is nozzle in heat exchanger?

The prime purpose of nozzles, headers, and turnarounds is to distribute fluid through a heal exchanger matrix, as shown in Figure 1 for a typical case. In many instances this approach results in poor distribution of the fluid within the heat exchanger.

How many types of shell and tube heat exchanger are there?

three types
The three types of Shell and tube heat exchangers as Follows : Fixed Tubesheet – this heat exchanger type has straight tubes through the shell and are fixed at both ends. U-Tube – as the name describes, the tube bundle in this heat exchanger is U shaped.

What is tube pitch in heat exchanger?

Tube pitch and clearance: Pitch is the shortest center-to-center distance between adjacent tubes. Commonly 1.25 to 1.5 time the tube diameter. Clearance is the distance between tubes. It should be larger than 25\% of the tube diameter.

What components are used to force a flowing fluid to pass over a shell and tube heat exchanger’s tubes multiple times?

d) A set of plates separating one flowing medium and one solid substance. QUESTION 5 What components are used to force a flowing fluid to pass over a shell and tube heat exchanger’s tubes multiple times? a) Baffles.

How are the parts of a heat exchanger connected?

Tubes are connected to the tube sheet by applying hydraulic pressure or by roller expansion. A tube sheet may be covered by a clad, which assists as a corrosion preventive and insulator. Tie rods are important heat exchanger parts. They are secured to the last baffle in one end and the tube sheet on another end.

Where is the tie rod located on a heat exchanger?

Tie rods are important heat exchanger parts. They are secured to the last baffle in one end and the tube sheet on another end. In the following figure, tie rod location is seen.

What is the size of a shell in a heat exchanger?

Shell is one of the costliest parts of the heat exchanger. As per the changing diameter the cost of shell and tube changes. Shell is closed by head on both sides either flanged or welded. The diameter depends upon the tube bundle diameter, the size of shell ranges from 6 inches (152mm) to 60 inches (1520mm).

Why do some heat exchangers have multiple tube passes?

Multiple tube passes allow to maximize the tube side heat transfer within the pressure drop constraint. Typically, heat exchangers with liquid as the tube side fluid have multiple tube passes. Most heat exchangers with large tube side volumetric gas flow rates have a single tube pass.