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Alfa Laval Thermal AB Patents
Assignee:
Alfa Laval Thermal AB
Address:
Lund, SE
No. of patents:
27
Patents:




Patent Number Title Of Patent Date Issued
5924484 Plate heat exchanger July 20, 1999
A plate heat exchanger includes a package of heat transfer plates. The heat transfer plates are provided with inlet ports therethrough forming an inlet channel through the package. A sealing means is arranged between the heat transfer plates and forms, together with the heat transfer pla
5638899 Welded plate heat exchanger June 17, 1997
In a welded plate heat exchanger the edge portion of each heat transferring plate (2) is welded together with the edge portions of a first adjacent heat transferring plate (3) along an outer line (10B) and with the edge portion of a second adjacent heat transferring plate (1) along an in
5509471 Distribution pattern of a plate heat exchanger April 23, 1996
A plate heat exchanger for evaporation of a liquid includes a number of thin heat transfer plates (4), provided with corrugation pattern in the form of ridges and grooves, which in each second plate interspace for supply of said liquid have several inlet openings (18) distributed hor
5492171 Plate heat exchanger, a method of producing a plate heat exchanger and means for performing the February 20, 1996
A permanently united plate heat exchanger normally comprises a plate package (1) having two end plates (3, 4) and several heat transferring plates (5) which are arranged therebetween. The end plates (3, 4) and the heat transferring plates (5) are permanently united, for instance by b
5472738 Method of providing heat transfer plates with a layer of a surface protecting material December 5, 1995
The invention is a method for assembling heat transfer plates, introducing a plastic protective material into the plate interspaces as a vapor, and condensing the material on the surfaces of the heat transfer plates.
5307869 Permanently joined plate heat exchanger May 3, 1994
In a plate heat exchanger each one of a stack of plate elements consists of two heat transfer plates which define between themselves a flow space for a heat exchange fluid and which are permanently joined together, for instance by brazing, around their edges and at several places distrib
5291945 Brazed plate heat exchanger March 8, 1994
A plate heat exchanger is composed of a number of plate elements each of which comprises two thin nested plates, the elements defining flow spaces between them, adjacent elements being joined around their periphery by brazing bent edge portions, there being brims extending from the edge
5226474 Plate evaporator July 13, 1993
In a plate heat exchanger for climbing film evaporating of a fluid, vertically arranged heat transfer plates (1, 2) delimit evaporating passages (4) and condensating passages (7) between themselves. Each evaporating passage (4) has a fluid inlet (5) at its lower portion and an outlet
5226473 Plate heat exchanger July 13, 1993
The present invention relates to a plate heat exchanger with a number of heat transfer plate (1) arranged between two end plates (3,4). Two guiding bars, which extend from one end plate (3) to the other end plate, are formed in one piece of one and the same rod (5).
5178207 Plate heat exchanger with leakage detector January 12, 1993
In a plate heat exchanger a stack of double-wall elements (23-26) is included, which between themselves form flow passages (32-34), and each one of which comprises two heat exchange plates, each having a heat exchange portion and a sealing portion surrounding the same and via said po
5174370 Plate evaporator December 29, 1992
The present invention relates to a plate heat exchanger for the evaporation of a fluid which is comprised of a plurality of heat transfer plate pairs. Each plate of the pair has a ridged and grooved corrugation pattern. Between adjacent plates are flow spaces, each having an inlet and an
5083446 Carrying bar for a frame in a plate heat exchanger January 28, 1992
The present invention relates to a plate heat exchanger comprising several heat exchange plates arranged in a frame between a frame plate and a pressure plate, and suspended from a horizontal carrying bar, which has a hollow supporting body with protruding suspension means on its undersi
5033543 Lining for plate heat exchanger July 23, 1991
This invention relates to a lining for lining inlet ports and outlet ports in a frame plate or a pressure plate for plate heat exchangers and comprising a cylindrical portion and two flanges which are connected to the cylindrical portion and which during the use of the lining are pos
4987955 Permanently joined plate heat exchanger January 29, 1991
The present invention refers to a plate heat exchanger comprising a package of heat exchange plates (2), each having a peripheral portion (17) and with this a heat exchanger portion (9) and several port portions with through-flow ports forming inlet and outlet channels through the packag
4966227 Plate evaporator October 30, 1990
In a plate heat exchanger for evaporation of a liquid conventional heat exchange plates (3) are used which have an elongated and substantially rectangular form and which have corner portions provided with ports. One corner portion of at least every second heat exchange plate has been
4915165 Plate heat exchanger April 10, 1990
In a plate heat exchanger, the heat exchange plates of which have been provided by pressing with a corrugation pattern comprising ridges (19a, 19b) and valleys (20a, 20b), the ridges and valleys of adjacent plates extend in parallel. In each plate interspace the ridges of adjacent plates
4911235 Plate heat exchanger March 27, 1990
A plate heat exchanger especially adapted for viscous fluids or fluids containing fibers has spacing means extending above the normal corrugations thus widening the normal interplate channels and the inlets and outlets to and from said channels are formed by juxtaposing the plates co
4909318 Method and apparatus for recovering heat from flue gases and for cleaning the same March 20, 1990
The present invention relates to a method for recovering heat and separating substances from a flue gas streaming through a heat exchange apparatus comprising a casing with heat exchange elements inserted thereinto, a medium being provided for absorbing heat from the flue gas. Accord
4874039 Plate heat exchanger October 17, 1989
A plate heat exchanger has a frame plate, a pressure plate and heat exchange plates clamped therebetween, all suspended from a carrying bar passing through a hole in the pressure plate and extending at least some distance into a corresponding hole in the frame plate. The pressure plate
4872506 Gasket for plate heat exchanger October 10, 1989
A gasket for a plate heat exchanger has a strip of metal fastened to one heat exchanger plate and bridging at least 50% but not the entire distance between that plate and an adjacent plate, and a layer of a material of lesser hardness than the metal attached to the metal strip and bridgi
4871013 Device to prevent through-flow of a port in a plate heat exchanger October 3, 1989
The present invention relates to a plate heat exchanger comprising several heat exchange plates arranged between two end plates (30), at least one of which has through-ports (31) and a side surface (36) facing the heat exchange plates, which is unmachined around the ports (31). At least
4848451 Plate heat exchanger July 18, 1989
The present invention relates to a plate heat exchanger comprising heat exchange plates clamped between a frame plate and a pressure plate, the frame plate and the pressure plate having ports with linings for intake and outflow of media to be heat exchanged and the heat exchange plates
4804040 Plate heat exchanger February 14, 1989
The present invention relates to a kind of plate heat exchanger (1) comprising several heat exchange plates (2, 2D), which are arranged between a frame plate (3) and a pressure plate (4) and are supported by a lower carrying bar (7), said lower carrying bar (7) and an upper guiding b
4800007 Corrosion protection for heat exchangers January 24, 1989
This invention relates to anodic corrosion protection for heat exchangers and comprises cathodes put into the inlet channel and the outlet channel for the corrosive medium and an anode constituted by the metal being the partition walls in the heat exchanger. The anode and the cathodes ar
4750555 Device in a frame plate for a plate heat exchanger June 14, 1988
A frame plate (11) for a plate heat exchanger has two ports (12, 13), to which there are connected two tubes provided with annular flanges (16, 17). The ports (12, 13) are situated so close to each other that there is no room for the flanges (16, 17) of the two tubes to be arranged side
4699212 Plate heat exchanger October 13, 1987
In a plate heat exchanger having a frame plate and a pressure plate, at least one of these plates has holes for flow of the heat exchanging media to and from respective passages in the pack of heat exchange plates. Each of these holes has a lining of corrosion-resistant metal comprising
4635715 Gasket arrangement for a plate heat exchanger January 13, 1987
This invention relates to a gasket for a plate heat exchanger which gasket has several projections for securing the gasket to a heat exchanger plate. Said projections protrude towards an edge of the plate along which the gasket extends. According to the invention the gasket projections (

 
 
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