Alfa Laval Corporate Ab

Alfa Laval Corporation Ab

Klas Bertilsson

Anders Nyander

Alvaro Zorzin

Magnus Nilsson

Clemens Wictor

Ralf Erik Blomgren

Kristian Walter

Anatol Krozer

Fredrik Strömer

Rolf Bermhult

Claes Stenhede

Nils Bjelk

Peter Arndt

Matz Andersson

Christer Johansson

Helén Gustafsson

Jakob Blomgren

Marcello Pavan

Loris Sartori

Ingvar Lindholm

Anders Cederberg

Fredrik Stromer

Fredrik STRÖMER

A method of making an end-piece for a plate heat exchanger, wherein the end-piece includes a frame part having inner and outer portions, and an intermediate portion arranged between the inner and outer portions, with the outer wall surface of the inner portion being arranged to face a first surface of a package of heat transfer plates comprising the plate heat exchanger, and the first surface having a center portion and a peripheral portion encircling the center portion. The method includes extruding the frame part with plural cavities in the intermediate portion of the frame part that extend in the extrusion direction of the frame part and that are parallel to the frame part axis, with outer dimensions of the outer wall surface of the inner portion configured to be at least as large as outer dimensions of the center portion of the first surface heat transfer plate package.

End-piece and plate heat exchanger comprising, and method of making, such end-piece

An end-piece for a plate heat exchanger comprises a frame part having an inner portion, an outer portion and an intermediate portion arranged between the inner and outer portions. An outer wall surface of the inner portion faces a first surface of a package of heat transfer plates comprised in the plate heat exchanger. The first surface has a center portion and a peripheral portion encircling the center portion. The frame part is extruded and the intermediate portion of the frame part comprises a first number of cavities extending in an extrusion direction of the frame part. The extrusion direction is parallel to an axis of the frame part. Further, outer dimensions of the outer wall surface of the inner portion are at least as large as outer dimensions of the center portion of the first surface of the package of heat transfer plates.

A heat exchanger includes a central body with a first set of channels and a second set of channels extending along a main direction through the central body, wherein, in the central body, in any cross-section across the main direction, the channels of the first and second sets form a checkered pattern in said cross-sections, wherein the heat exchanger further includes two inner transition portions, wherein, in respective inner transition portion, among the rows extending along a first direction, are every second, counted along a second direction, row provided with channels being along the main direction increasingly shifted in position in a first direction relative to the other channels such that the checkered pattern of channels is transformed into a line pattern.

Heat exchanger with sets of channels forming checkered pattern

The invention relates to a plate heat exchanger including a plate package, which includes a number of first and second heat exchanger plates which are joined to each other and arranged side by side in such a way that first and second plate interspaces are formed. At least two injectors are provided, each injector being arranged to supply a first fluid to at least one of the first plate interspaces in the at least one plate package and at least one valve is arranged to control the supply of the first fluid to the at least two injectors.

Plate heat exchanger

System and method for dynamic control of an evaporator

A plate heat exchanger includes a plate package having first and second heat exchanger plates. The plates are joined to each other and arranged side by side so that a first plate interspace exists between each pair of adjacent first and second heat exchanger plates, and a second plate interspace is formed between each pair of adjacent second and first heat exchanger plates. The first and the second plate interspaces are separated from each other and provided side by side in an alternating order. Substantially each heat exchanger plate has at least a first porthole forming a first inlet channel to the first plate interspaces. At least two injectors are arranged in a wall portion of the first inlet channel and extend from the exterior of the plate package to the first inlet channel interior, and each injector supplies a fluid to more than one of the first plate interspaces.

The invention refers to a heat exchanger plate and a plate heat exchanger. The heat exchanger plates are arranged beside each other in the plate heat exchanger to define several first plate interspaces for a first medium and several second plate interspaces for a second medium. Each heat exchanger plate comprises a heat transfer area, an edge area, which extends around and outside the heat transfer area, and a functional device, which is configured to receive or produce a signal. The heat exchanger plate also comprises a communication module provided on the heat exchanger plate. The communication module comprises an electronic circuit connected to the functional device and a module antenna. The communication module is configured to permit wireless communication of the signal with a master unit via the module antenna.

Heat exchanger plate and a plate heat exchanger

A device and a method for assessing a gasket pressure of a gasket arrangement between two adjacent heat transfer plates of a plate heat exchanger is provided. The gasket arrangement seals between adjacent heat transfer plates to define a flow channel between adjacent heat transfer plates, and the gasket arrangement is arranged to be exposed to a fluid passing through the flow channel. The device comprises a test object and a holder which are adapted to be arranged in a flow path of the fluid. The holder is arranged to hold the test object and the test object is arranged to be exposed to the fluid. The device is adapted to be arranged outside a space delimited by the adjacent heat transfer plates. The test object is arranged to be evaluated for an indirect assessment of the gasket pressure of the gasket arrangement.

Device, method and plate heat exchanger

A plate heat exchanger includes a heat exchanger plate having a heat transfer area and an edge area, extending around the heat transfer area. The heat exchanger plate is a double wall plate formed by two adjoining plates compressed to be in contact with each other. A sensor configured to sense at least one parameter and to produce a signal depending on the parameter includes a sensor probe that is provided between the adjoining plates.

Heat exchanger plate and a plate heat exchanger with insulated sensor internal to heat exchange area

The invention refers to a heat exchanger plate and a plate heat exchanger. The heat exchanger plates are arranged beside each other in the plate heat exchanger to define several first plate interspaces for a first medium and several second plate interspaces for a second medium. The heat exchanger plate comprises a heat transfer area, an edge area, which extends around and outside the heat transfer area, and a device, which is configured to receive or produce a signal. The heat exchanger plate also comprises a communication module comprising an electronic circuit connected to the device and communication means permitting communication of said signal with a master unit via at least a communication module of another heat exchanger plate in the plate package.

The invention relates to a plate heat exchanger () having a package of heat transfer plates (), which are provided with through inlet ports () forming an inlet channel () through the package, and between the heat transfer plates arranged sealing means, which together with the heat transfer plates in every other plate interspace delimit a first flow passage () for one fluid and in each of the remaining plate interspaces delimit a second flow passage () for a second fluid, wherein the inlet channel () communicates with each first flow passage () by way of a first inlet passage (), and is sealed from communication with each second flow passage by the sealing means.

A device for treating a substantially gaseous medium includes a number of parallel plates ( ) which are connected to each other and provided adjacent to each other in such a manner that they, via port holes in the plates ( ), form a first channel ( ) and a second channel ( &prime;). The first channel ( ) is arranged to transport the gaseous medium, and the second channel ( &prime;), which is separated from but in heat transferring contact with the first channel ( ), is arranged to transport a cooling medium for cooling the gaseous medium. At least a part ( ) of the first channel ( ) is arranged to separate liquid from the gaseous medium. The part ( ) of the first channel ( ) is formed by a plurality of plate interspaces between a part of the plates ( ), wherein at least one of the plates ( ), delimiting one of the plate interspaces, is arranged to be passed by the gaseous medium on both sides thereof.

Device for treating a gas

In a plate heat exchanger heat transfer plates abut against each other in such a way that heat transfer passages are formed therebetween, port holes provided in the heat transfer plates forming port channels through the plate heat exchanger. Between the heat transfer portion (,) of a heat transfer plate (,) and a port hole (,) forming a part of a port channel, that constitutes an inlet for a refrigerant, the heat transfer plate (,) has a passage portion (,). The passage portion (,) is adapted to delimit a distribution passage between the heat transfer plate (,) and an adjacent heat transfer plate, through which distribution passage the refrigerant is intended to flow from the inlet port channel to the heat transfer passage between the heat transfer plates. In the distribution passages the refrigerant shall be subjected to a pressure drop. According to the invention the pressure drop can be given different magnitudes by punching of different kinds of port holes (,) in the heat transfer plates.

Method of producing heat transfer plates; an assortment of heat transfer plates; and a plate heat exchanger comprising heat transfer plates included in the assortment

Growing community of inventors

Eslöv, Sweden

Klas Bertilsson