METHOD CHECKING INTEGRITY OF FILTRATION ELEMENT AND FILTRATION UNIT Russian patent published in 1998 - IPC

FIELD: filtration systems. SUBSTANCE: invention refers to check of integrity of at least one filtration element in filtration unit in which filtration element or elements are connected to common outlet branch pipe. Method involves wetting of material of one filtration element as minimum, application of gas pressure from inlet side of filtration element having wetted filtration material and keeping of this pressure constant in period of pressure measurement, measurement of pressure P_i in function of time in outlet branch pipe with outlet valve located after pressure transducer shut, determination whether pressure measured in specified time exceeds reference pressure by value specified in advance or determination whether time needed for achievement of specified pressure is less than reference time by value specified beforehand. EFFECT: improved reliability of method. 15 cl, 4 dwg