What Are The Structural Components Of A Cargo Drain Cooler?

What are the Structural Components of a Cargo Drain Cooler?

Cargo drain coolers are usually composed of the following main parts of the structure:
Heat exchanger
Tube bundle: The core heat exchanger component of the cooler, usually consisting of a number of metal tubes, e.g. stainless steel tubes. These tubes internally circulate the cargo discharge fluid to be cooled, while the outside of the tubes are in contact with the cooling medium and heat exchange takes place through the tube walls. There are various ways of arranging tube bundles, such as straight tube arrangement, U-shaped tube arrangement, etc., in order to increase the heat exchange area and improve the efficiency of heat exchange.
Tube plate: used to fix the ends of the tube bundle, so that the tube bundle to maintain in the correct position, while preventing fluid leakage. The tube plate is usually welded or flanged to the shell to ensure the sealing and stability of the structure.
Shell: It is the outer shell of the cooler, which is generally cylindrical in structure and made of steel plate. The shell surrounds the tube bundle, forming a circulation channel for the cooling medium, so that the cooling medium can flow in the shell and exchange heat with the cargo discharge fluid in the tube bundle. The housing is usually provided with inlet and outlet receivers for connecting the piping of the cooling medium.

Fluid distribution device
Inlet distributor: Located at the cargo discharge fluid inlet of the cooler, its function is to evenly distribute the cargo discharge fluid entering the cooler into each tube bundle to ensure that each tube bundle can be fully utilized, avoiding local overheating or inefficient heat exchange caused by uneven fluid distribution.
Outlet Collector: At the outlet of the cargo discharge fluid, it is used to collect the cooled fluid from each tube bundle and bring it together in an outlet receiver for delivery to subsequent treatment equipment or systems.
Supports and fixtures
Supports: used to support the overall weight of the cooler and to hold the cooler in its mounting position. The support is usually made of steel profiles, and the structure is designed appropriately according to the size and weight of the cooler to ensure the stability of the cooler during operation.
Support: installed at the bottom of the cooler shell, connected with the bracket, play the role of supporting and fixing the shell. There are various forms of support, such as saddle-type support, ear-type support, etc., according to the specific structure of the cooler and installation requirements for selection.
Sealing device
Tube end seal: used to seal the connection part between the tube bundle and the tube plate to prevent the cargo discharge fluid and cooling medium leakage. Common sealing methods include expansion, welding or the use of sealing gaskets.
Shell sealing: including the sealing between the shell and the tube plate, the flange connection of the shell and the connection between various receivers and the shell and other parts of the seal. Usually sealing gasket, sealing ring or welding and other ways to seal, to ensure that the cooler will not leak in the operation process.
Accessories
Thermometer and pressure gauge: Used to measure the temperature and pressure of cargo discharge fluid and cooling medium at the inlet and outlet of the cooler, so that the operator can monitor the operation status of the cooler in real time, and find out the abnormal situation in time and make adjustments.
Safety valve: when the pressure in the cooler exceeds the set value, the safety valve will open automatically to release part of the fluid to prevent the cooler from being overpressurized and dangerous and to ensure the safe operation of the equipment.
Drain port: set at the bottom of the cooler or other suitable location, used to regularly discharge the accumulated dirt, impurities and condensate in the cooler, etc., in order to maintain the heat transfer effect and normal operation of the cooler.