Method And Device For Assessing The Risk Of Fluid Leakage In A Heat Exchanger With Sensor
AssigneeAlfa Laval Corporate AB
InventorsJan Ove Bergqvist, Magnus Svensson
Life of this patent
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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.
Claims11
1-13. (canceled)
A method for assessing, in a heat exchanger having a number of heat exchanger plates and intermediate gaskets therebetween, the functionality of a gasket material comprising
- using a first sensor to monitor a compression pressure of a gasket material,
- registering and processing in a processor a value monitored by the first sensor to assess an associated risk of leakage of a fluid flowing through the heat exchanger,
- comparing the value monitored with a predetermined set-value and
- in the event of deviation between the monitored value and the predetermined set-value, activating an indicator before leakage through or past the gasket occurs.
A device for monitoring operating conditions in a heat exchanger system, the heat exchanger system comprising a plate heat exchanger having heat exchanger plates and gaskets, the plate heat exchanger, when in use, being constructed and arranged to receive at least one fluid and having a first sensor for monitoring a compression pressure of at least one of the gaskets wherein
- the first sensor is in or close to one or more of the gaskets,
- the device further comprising a second sensor for monitoring fluid pressure, and the sensor for monitoring fluid pressure is located at one point along a flow path of one fluid to the heat exchanger from a last component, seen in the direction of flow, from the heat exchanger system, said last component being the last component in the heat exchanger system to have a possibility of influencing a characteristic of the fluid to the plate heat exchanger.
Dependencies are inferred from the claim text.