Alfa Laval Corporate Ab

Rolf Christensen

Magnus Svensson

Rolf Bermhult

Håkan Larsson

Fredrik Andreasson

Haakan Larsson

Tommy Norén

Anders Skoglösa

Rolf Ekelund

Ingvar Lindholm

Anders Skoglosa

A plate package for a heat exchanger device includes a plurality of heat exchanger plates of a first type and a plurality of heat exchanger plates of a second type. At least the heat exchanger plates of the first type include, along at least a section of the opposing side portions, a draining channel flange. The draining channel flanges are oriented in one and the same direction such that a draining channel flange of a first heat exchanger plate of the first type abuts or overlaps a draining channel flange of a subsequent heat exchanger plate. The draining channel flanges form outer walls to the outer draining portions thereby transforming the outer draining portions into draining channels. A method of using such plate package in a heat exchanger device and also a heat exchanger device as such are also disclosed.

Plate package using a heat exchanger plate with integrated draining channel and a heat exchanger including such plate package

A plate heat exchanger includes a plurality of heat exchanger plates formed of a metal sheet and permanently joined to each other by means of a braze material to form a plate package having first plate interspaces and second plate interspaces. Each heat exchanger plate has a pattern forming a heat transfer area and a plurality of porthole areas. Each heat exchanger plate extends along a main extension plane. The areas extend, on one side of the heat exchanger plate, between a primary level at a distance from the main extension plane and a secondary level at a distance from and on an opposite side of the main extension plane. Each heat exchanger plate has a depth defined by the distance between the primary level and the secondary level. The depth is equal to or less than 1.0 mm.

Plate heat exchanger

A plate heat exchanger including a plurality of heat exchanger plates joined to each other. Each plate has a heat transfer area, a first porthole area, a second porthole area, a third porthole area and a fourth porthole area. Each porthole area surrounds a porthole having a porthole edge. Each porthole area comprises an annular flat area, a set of inner portions on the annular flat area along the porthole edge, and a set of outer portions along the annular flat area at a distance from the inner portions. The outer portions of the first porthole area have a first relative peripheral position with respect to the inner portions. The outer portions of the fourth porthole area have a second relative peripheral position with respect to the inner portions. The first relative peripheral position includes a peripheral displacement in relation to the second relative peripheral position.

A plate heat exchanger includes a plurality of heat exchanger plates. The plates are provided beside each other and permanently joined to each other to form a plate package having first plate interspaces and second plate interspaces. Each plate has a heat transfer area and four porthole areas defined by a porthole edge. Each of the porthole areas includes an annular flat area located at one of a primary and secondary level, and a set of inner portions on the annular flat area at the other of the primary and secondary level. Each inner portion has an inner part adjoining the porthole edge and an outer segment adjoining the inner part and having an angular extension of at least 180&#xb0;. The outer segment has a continuous contour and a radius R, which is allowed to vary within the range 0.8R&#x2266;R&#x2266;1.2R.

A plate heat exchanger including a plurality of heat exchanger plates (), a first end plate and a second end plate. The plates are permanently joined to each other by means of a braze material. Each heat exchanger plate has a heat transfer area and a plurality of porthole areas surrounding a respective porthole. The plate heat exchanger including a plurality of having a bottom surface turned towards the heat exchanger plates. At least one of the flat elements including an annular protrusion extending from the bottom surface and tightly abutting one of the porthole areas of the outermost heat exchanger plate.

A heat exchanger plate includes one or more heat exchanger sections, each of which has an inlet and outlet. The heat exchanger sections flow one or more heat exchanger fluids therein in a first direction from the inlet to the outlet. The heat exchanger plate includes one or more process flow channels, each of which has a channel inlet point and a channel outlet point defining a line oriented in a second direction. The second direction is at an angle of ninety degrees relative to the first direction. The process flow channel is configured to flow a process fluid therein or thereon and has a serpentine configuration. The heat exchanger plate includes a temperature sensor. The heat exchanger plate includes a regulating valve positioned in each heat exchanger outlet and is configured to regulate flow of the heat exchanger fluid in response to a signal received from the temperature sensor.

Sectioned flow device

A device, including a heat exchanger plate and a plate package () of heat exchanger plates () which are provided beside each other to form a plate interspace between adjacent plates. The plate interspaces form, in an alternating order, first passages () for a first medium and second passages () for a second medium which cools the first medium. Each heat exchanger plate has at least two portholes forming a first inlet port channel and a first outlet port channel (), which extend through the plate package to a first inlet and a first outlet, respectively, for the first medium to and from the first passages (). The first outlet forms a gas outlet () for discharging a gaseous portion of the first medium and a liquid outlet () for discharge of liquid of the first medium. The liquid outlet () is separated from the gas outlet () to permit separate discharge of the liquid and gaseous portions.

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Veberöd, Sweden

Rolf Christensen