Wednesday 13 April 2016

PLATE HEAT EXCHANGER AND ITS WORKING



A plate heat exchanger is a type of heat exchanger that applies metal plates in transferring heat between the couple of fluids. The plate heat exchangers consist of a frame, and this particular frame consists of a head along with the follower and column, carrying bar, guideline bar along with numerous clamping bolts.

In comparison with coaxial and tubular heat exchangers the size and geometry of the plate heat exchanger make them completely suitable for installation within the framework of the system. In one and the same PHE frame, it is possible to install both the condensing and the vaporizing sections in order to save the space along with the weight and costs of the installations and refrigeration sales and service Auckland.

For submerged vaporization in a PHE a circulation ratio of 1.2 to 1.5 is quite common. The refrigerant pump if used can therefore be chosen with relatively small capacity as does the liquid pipe work as it has been said by individuals providing brazed plate heat exchangers in Auckland .

Each of the plate is supplied with a gasket so that the plates from a closed system of parallel flow channels, through which the medias flow alternatively at every second interval.



The plate stack- The gaskets are completely glued on the plate, securing tightness between Medias and the atmosphere. There is a couple of gaskets between the different Medias, having intermediate drainage areas signifying every second plate in the stack has to turn 180 thereby the plates form a closed system of parallel flow channels through which the Medias flow in an alternative stream at an interval of every second.

Construction of Gaskets- The first plate after the head and immediate frames is mounted with a gasket. These particular gaskets are completely cut out from ordinary gaskets.




Glued and unglued gaskets- Some of the plate heat exchangers are delivered with lesser glues. In these units it is possible to change the gasket without the usage of glue. However the gaskets on the very first place after the head and intermediate frame should be glued keeping in mind the various patters of gluing.