Abstract: A method and device, for a heat exchanger which is provided with gaskets, for assessing and detecting the risk of fluid leakage in the heat exchanger due to worn-out gaskets. In the heat exchanger, a heat transfer plate (5) with gasket (6) is provided with a pressure sensor (15) which monitors the pressure between the plate (5) and the gasket (6). A further sensor is adapted to the heat exchanger for monitoring the pressure of the fluid entering the heat exchanger.

Abstract: A method and device, for a heat exchanger which is provided with gaskets, for assessing and detecting the risk of fluid leakage in the heat exchanger due to worn-out gaskets. In the heat exchanger, a heat transfer plate (5) with gasket (6) is provided with a pressure sensor (15) which monitors the pressure between the plate (5) and the gasket (6). A further sensor is adapted to the heat exchanger for monitoring the pressure of the fluid entering the heat exchanger.

Abstract: A method and device, for a heat exchanger which is provided with gaskets, for assessing and detecting the risk of fluid leakage in the heat exchanger due to worn-out gaskets. In the heat exchanger, a heat transfer plate (5) with gasket (6) is provided with a pressure sensor (15) which monitors the pressure between the plate (5) and the gasket (6). A further sensor is adapted to the heat exchanger for monitoring the pressure of the fluid entering the heat exchanger.

Abstract: A method and device, for a heat exchanger which is provided with gaskets, for assessing and detecting the risk of fluid leakage in the heat exchanger due to worn-out gaskets. In the heat exchanger, a heat transfer plate (5) with gasket (6) is provided with a pressure sensor (15) which monitors the pressure between the plate (5) and the gasket (6). A further sensor is adapted to the heat exchanger for monitoring the pressure of the fluid entering the heat exchanger.

Abstract: 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 plates, a first flow passage for one fluid in every second plate interspace and a second flow passage for a heating fluid in each of the remaining plate interspaces. The inlet channel communicates with each first flow passage through at least one inlet passage while being blocked from communication with each second flow passage by part of the sealing means located in a first sealing area that extends around the inlet channel. Every two adjacent heat transfer plates which delimit the first flow passage have an essentially tight surface abutment against each other in a second sealing area. The inlet passage is delimited by at least one of the two adjacent heat transfer plates between its inlet port and the first sealing area.

Abstract: 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 portions abutting directly against corresponding portions of the other heat exchange plate. Sealing members (28-31) abut sealingly against adjacent double-wall elements (23-26) along the sealing portions and delimit the flow passages (32-34). Joining means press the double-wall elements against each other. To enable a quick indication of a possible leakage through a heat exchange plate at least one channel (40, 41) is arranged between the plates in each double-wall element. The channel (40, 41) is designed between opposite parts of sealing portions of the respective heat exchange plates and extends across the latter.

Abstract: 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 package. Said heat exchange plates (2) are permanently joined to each other along their peripheral portions (17) and at a variety of places in their heat exchange portions (9) in such manner that they leave flow passages between adjacent heat exchange plates (2), and between an outer line (13) and an inner line (14) located closer to the inlet and outlet channel, respectively.

Abstract: 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 containing ports forming said inlets and outlets to give the maximum throughflow.