We all know that a plate heat exchanger is a type of heat exchanger stacked by a series of corrugated metal sheets.

Thin rectangular channels are formed between various plates, and heat is exchanged through the plates.

Plate heat exchanger is an ideal equipment for liquid-liquid heat exchange.

It has the characteristics of small heat loss, high heat exchange efficiency, small footprint, wide application, compact and lightweight structure, and long service life.
For the plate heat exchanger, if you want to ensure the service life of the equipment, you must not only use the equipment correctly, but also properly stop the equipment.
For plate heat exchangers, both in terms of service life and efficiency, correct shutdown is important.
Let's take a look at the correct shutdown sequence of the plate heat exchanger:
1. the plate heat exchanger needs to stop the pump before shutting down the power supply; if a vent valve is installed on the pipeline, it should be opened.
2. Before the plate retarder stops, slowly close the inlet valve of the hot medium, and then close the inlet valve of the cold medium; finally, close the outlet valves of the two mediums.
3. For medium with high temperature or corrosive medium, the plate heat exchanger should be stopped and vented as far as possible to avoid scalding and corrosive equipment when opening the equipment.
The above content introduces the correct shutdown sequence of the plate heat exchanger for everyone, whether it is shutdown or normal use, it requires us to operate correctly. Only by giving the equipment more protection will it give us more benefits in return.