Abstract: A plate heat exchanger comprising a top head, a bottom head, four side panels and four corner girders. The side panels and the corner girders extend along a longitudinal direction from the bottom head to the top head, and each side panel is associated with two corner girders. The top head, the bottom head, the four side panels and the four corner girders are joined together to form a sealed enclosure for housing a plate pack of stacked heat-exchanging plates. A continuous gasket assembly is arranged in a contact region between at least one side panel and two corner girders, the top head and the bottom head. The gasket assembly is located in a groove. Moreover, the gasket assembly is a segmented gasket assembly composed of plural gasket segments, and each gasket segment is made of graphite material. Also disclosed is a method for assembling such a plate heat exchanger.

Abstract: A plate heat exchanger comprising a casing, a fluid separation device, a number of heat transfer plates that are permanently joined to each other and have central openings that form a central space in a plate stack and in which the fluid separation device is arranged, such that a first part of the central opening may act as a fluid inlet and a second part of the central opening may act as a fluid outlet for a first fluid, opposite sides of the plates act fluid entries and exits for a second fluid, an outer dimension of the plate stack is smaller than an inner dimension of a shell of the casing, wherein fluid blockers are arranged in a gap between the shell and the plate stack.

Abstract: A plate heat exchanger comprising a casing, a fluid separation device, a number of heat transfer plates that are permanently joined to each other and have central openings that form a central space in the plate stack and in which the fluid separation device is arranged, such that a first part of the central opening may act as a fluid inlet and a second part of the central opening may act as a fluid outlet for a first fluid, opposite sides of the plates act fluid entries and exits for a second fluid, wherein two end plates have central through holes the ends of the plate stack, each of the end plates being thicker than the heat transfer plates, providing increased mechanical support for the plate stack, and having a slower thermal expansion.

Abstract: A high-pressure plate heat exchanger comprising a casing that has a shell, a top cover and a bottom cover that are joined to form an enclosure, a stack of heat transfer plates is arranged within the enclosure, the heat transfer plates having openings in form of through holes in the heat transfer plates, the openings forming a space in the plate stack in which a first fluid flows, wherein a reinforcement element extends through the openings in the heat transfer plates and is connected to each of the top cover and the bottom cover for supporting the covers when the plate heat exchanger is subjected to a pressure from any of the first fluid and a second fluid that flows through the plate heat exchanger.

Abstract: A plate heat exchanger comprising a casing, a fluid separation device, a number of heat transfer plates that are permanently joined to each other and have central openings that form a central space in a plate stack and in which the fluid separation device is arranged, such that a first part of the central opening may act as a fluid inlet and a second part of the central opening may act as a fluid outlet for a first fluid, opposite sides of the plates act fluid entries and exits for a second fluid, an outer dimension (D1) of the plate stack is smaller than an inner dimension (D2) of a shell of the casing, wherein fluid blockers are arranged in a gap between the shell and the plate stack.