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How to install multipass plate heat exchanger

2025-03-20
The multipass plate heat exchanger is a type of plate heat exchanger. It is designed to allow the fluid to pass through the heat exchanger multiple times before flowing out, increasing the thermal length within the same module, thereby improving heat transfer efficiency and reducing fouling during operation.
The multi-channel design increases the contact time between the cold and hot fluids while allowing a more negligible temperature difference between the two fluids, making the thermal length of the plate much higher, and can pull the heat recovery rate to a very high limit. Due to the increased turbulence in the flow paths, achieve high heat transfer with lower surface area requirements in multipass PHE. Compared with traditional shell and tube heat exchangers, multipass heat exchangers are compact in design, occupy a smaller area, and are more economical. The detachable design is very flexible. By adjusting the settings of the heat exchanger plates, the number of channels can be adjusted to adapt to different industrial applications.
multipass plate heat exchanger working
multipass plate heat exchanger working principle

The multipass plate heat exchanger includes Frame Plate, Carrying Bar, Plate Pack, Pressure Plate, Guiding Bar, Support Column and Tightening Bolts. Before connecting any pipes, make sure that all foreign matter in the pipe system of the plate heat exchanger has been cleaned and no air is left. The anchor bolts have been tightened and the equipment has been fixed to the foundation. Make sure there is enough space on one side of the equipment to remove the heat exchanger plates. If the surface temperature of the plate heat exchanger is expected to be too high or too low during operation, isolate the plate heat exchanger to avoid personal injury.

Installation steps

✅ Determine the inlet and outlet of the fluid according to the drawings provided by the manufacturer, ensure the correct flow direction, and use a filter at the inlet

✅ Check the seals before tightening to ensure that all gaskets are correctly aligned and there is no visible misalignment

✅ Inject the fluid slowly to prevent pressure surges. Before full operation, perform a pressure test to check for leaks

✅ During the initial operation, check the equipment regularly to ensure normal operation

✅ Perform a thorough risk assessment before each handling of the packaged equipment

Maintenance

✅ Clean the plates regularly depending on factors such as the type of media and operating temperature

✅ After long-term use, the rubber gaskets may need to be replaced

JINFAN PHE being installed
JINFAN Multipass PHE being installed

how to install multipass plate heat exchanger-1

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