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Heat exchanger repair
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Heat exchanger repair

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Descriptions :

Heat exchangers are used to cool or heat one fluid by another without the direct use of heat or cold generators, as well as to recover heat or cold from fluids previously given to them.

Heat exchanger components:

Heat exchangers available in industries and factories, especially the petrochemical industry, are usually of the shell and tube type. The advantages of these heat exchangers can be high contact surface in a small volume, good mechanical design and uniform pressure distribution. It can be said that the structure of the transducers consists of a number of tubes that are placed inside a cylinder, and two desired fluids, one cold and the other hot, without colliding directly with each other. Through the metal wall, the pipes will exchange heat with each other, in other words, one of these two fluids will flow in the pipes and the other around the pipes, inside the shell.

According to the description, the components of a heat exchanger are:

Flow in pipes and shells:

In the shell of a passage, fluid enters from one end of the transducer and exits from the other end. In a heat exchanger, two passes are required for the fluid to enter and exit from one end. The choice of flow order in the shell depends on the amount of cooling or heating as well as the pressure drop required and the type of work. For example, a kettle-type boiling converter is suitable for evaporating currents in the shell.

1 to 16 passes may be used for flow in pipes. In a heat exchanger that has two passages, the fluid flows between half of the pipes in one direction and between the other half of the pipes in the opposite direction. Doing so requires a split page in the input channel.

Types of tube and shell converters:

Identify the type and size of shell and tube converters:

The size of the converter according to the TEMA code is determined by the diameter of the shell and the length of the pipes in inches, the converter with the size of 192-23 has a diameter of 23 and the length of the pipes is 192 inches. Depending on the type of Stationary Head, the type of shell (Shell Type) and the type of end head (Rear Head), the type of converter is determined by three Latin letters. For example, a 192-17 AES converter has a 17-inch-diameter shell. This converter has a channel and a detachable cap and has a shell with one passage and a floating head with two half rings.

The size of the converter according to the TEMA code is determined by the diameter of the shell and the length of the pipes in inches, the converter with the size of 192-23 has a diameter of 23 and the length of the pipes is 192 inches. Depending on the type of Stationary Head, the type of shell (Shell Type) and the type of end head (Rear Head), the type of converter is determined by three Latin letters. For example, a 192-17 AES converter has a 17-inch-diameter shell. This converter has a channel and a detachable cap and has a shell with one passage and a floating head with two half rings.

Application of each heat exchanger:

In general, each of the heat exchangers is used for heating or cooling the flew.

Cooling heat exchangers:

Cooling heat exchangers:

All heat exchangers that are responsible for raising the temperature of materials are heaters. Such as boiling, evaporating, furnace, etc.

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Equipment Heat exchanger repair

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