Patent ID: 11867468
Assignee: VAHTERUS OY
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A plate heat exchanger arrangement comprising:
a plate pack comprising a plurality of heat exchange plates having at least two openings defining flow passages, wherein the heat exchange plates are arranged on top of each other to define a longitudinal direction, wherein the plate pack comprises ends spaced apart from one another in the longitudinal direction of the heat exchange plates, and wherein the heat exchange plates are attached to each other as plate pairs defining spaces therebetween and include inner parts thereof which are arranged in connection with each other via the flow passages formed by the at least two openings of the heat exchange plates,
an outer casing surrounding the plate pack, wherein the outer casing comprises end plates spaced apart from one another in the longitudinal direction of the plate pack, and a shell connecting the end plates,
primary inlet and an outlet connections for a heat exchange medium arranged through the outer casing, wherein the outer casing, the primary inlet connection and the primary outlet connection are arranged to connect with the spaces between the plate pairs of the plate pack, and
at least one partition plate arranged between the heat exchange plates of the plate pack which divides the plate pack into separate plate pack parts, wherein
the plate heat exchanger arrangement further comprises secondary inlet and outlet connections for each of the separate plate pack parts which are arranged to connect the inner parts of the plate pairs of the respective plate pack part, and wherein
at least one of the secondary inlet or outlet connections of the separate plate pack parts comprises a connection pipe which is arranged inside a flow passage of the respective plate pack part between the end plate of the outer casing and the partition plate, and wherein
the connection pipe has first and second ends such that the first end of the connection pipe is attached to the partition plate for forming a connection to the flow passage of the plate pack part and the second end of the connection pipe extends through the end plate of the outer casing.