| 摘要 |
The invention refers to a plate heat exchanger, which includes a sensor device and a plate package of heat transfer plates ( 1 ). The heat transfer plates form between the plates ( 1 ) first passages ( 3 ) for a first fluid and second passages ( 4 ) for a second fluid. The sensor device includes a space ( 21 ), which is closed to the first passages ( 3 ) and the second passages ( 4 ). The closed space ( 21 ) is arranged to contain a medium, which can be influenced by the temperature of at least one of the fluids, and to be connectable to a device ( 14 ) for sensing a pressure change of the medium in the closed space ( 21 ). The closed space ( 21 ) is at least partly defined by at least one of the plates ( 1 ).
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