초록 ▼

The invention relates to a device for detecting a leak between two circuits of a plate-type heat exchanger (1) provided with means for filling two circuits with fluid at a different pressure, characterized in that said device comprises automatic control means for the convergence of the pressure insi

The invention relates to a device for detecting a leak between two circuits of a plate-type heat exchanger (1) provided with means for filling two circuits with fluid at a different pressure, characterized in that said device comprises automatic control means for the convergence of the pressure inside said circuits with respect to a given threshold, and means for signalling a leak when the automatic control means have detected the occurrence of said convergence.

대표청구항 ▼

1. A method for detecting a leak between the two circuits of a plate-type exchanger (1), of the type in which each of the two circuits is filled with fluid at a different pressure, characterized in that the change in pressure in the two circuits is observed and in that a converging of the pressures

1. A method for detecting a leak between the two circuits of a plate-type exchanger (1), of the type in which each of the two circuits is filled with fluid at a different pressure, characterized in that the change in pressure in the two circuits is observed and in that a converging of the pressures observed in the two circuits below a certain threshold is automatically monitored and in that a leak detected when said convergence has been detected is signaled, observation involving periodically calculating the difference between the two pressures, the leak being signaled when this difference drops below a certain threshold.2. The method as claimed in claim 1, characterized in that several sections are defined in the two circuits according to the connections of the inlets/outlets of the plates of the exchanger (1), and in that several sections of the exchanger (1) are tested simultaneously.3. The method as claimed in claim 2, characterized in that the connections to be made with a hydraulic test module to simultaneously test said several sections are automatically indicated.4. A device for detecting a leak between the two circuits of a plate-type exchanger (1), of the type comprising means for filling each of the two circuits with fluid at a different pressure, characterized in that it comprises means for automatically monitoring the convergence of the pressures in the two circuits with respect to a given threshold, and means for signaling a leak in function when the automatic monitoring means have noticed said convergence, said monitoring means comprising means for measuring the differential pressure.5. The device as claimed in claim 4, characterized in that it comprises a hydraulic module (20) and an electronic module (10) which are separate, the hydraulic module comprising a number of connections (25) for connecting to a number of inlets/outlets (4-7) of the plate-type exchanger (1) so that several sections of the exchanger can be tested simultaneously.6. The device as claimed in claim 5, characterized in that the electronic module (10) contains software for exploiting the pressure measurements determined at the connections (25) of the hydraulic module (20).7. The device as claimed in claim 6, characterized in that the software indicates, on the basis of the configuration of the sections, which configuration is input as data, what connections are to be made at the connections (25) in order to take the measurements.