You walk past one of your plate heat exchangers that's been working great for a long time. But, today you notice that it''s leaking onto the floor in several different locations. You need this heat exchanger for a critical heating or cooling application at your facility. You can''t remember ever changing the gaskets on the unit, so you run to your office to get the records on the heat exchanger. You notice that the unit was supplied with glued gaskets.....what now?

The design of plate heat exchangers is very reliable since they have several fail-safe spots to visibly show any leaks.  Nearly all possible leaks will cause the flow to spill out the sides of the exchanger to the ground so the problem becomes obvious.

Plate heat exchangers (PHEs) have been installed in larger heat pump systems and refrigeration systems since the 1980s. Tech-nicians who deal with these systems need to know some specific details of how they work. Part one of this article covered PHE design, on-site assembly and service, leak indication, freezing risk, and resistance from vibration, pressure, and seismic occurrences. This week the article continues its discussions of the plate heat exchanger as vaporizer and condenser.

Plate heat exchangers (PHEs) have been installed in larger heat pump systems and refrigeration systems since the 1980s. Tech-nicians who deal with these systems need to know some specific details of how they work.Part one of this article covered PHE design, on-site assembly and service, leak indication, freezing risk, and resistance from vibration, pressure, and seismic occurrences. This week the article continues its discussions of the plate heat exchanger as vaporizer and condenser.

Physical examination on the heat exchange station is much simpler than that on human beings, the examination items are no more than temperature, flow, pressure, power and several key points, through these simple parameters, 3 important indicators of heat rate, power consumption and pressure drop were examined, so as to find the crux of the problem of “three highs” of the heat exchange station. Let us see the high-end customized health care services that heating stations can enjoy: