The pump mechanical seal is used, not only to consider the mechanical seal itself, influencing factors, tamper evident seals but also to consider a variety of mechanical seals external factors .
1 large measure to eliminate channeling shaft
Rational design of axial force balancing device , eliminate the axial channeling . To meet this requirement , for multi- stage centrifugal pumps, ideal design is twofold: one is to balance the axial thrust bearing plate plus , the balance disc balance the axial force , the axial thrust bearing on the shaft for axial limit ; balancing drum plus the other is an axial thrust bearing , the balance drum axial force balance out the most , and the remaining axial force by thrust bearings bear , while the axial thrust bearing for the shaft axis to the limit . The second scheme is the key to the rational design of balancing drum so that it can really balance out most of the axial force. For other single-stage pump in a pump and other products, are designed to take some measures to ensure that the amount of the mechanical shaft seal channeling the required range.
(2) Measures to eliminate the axial force is too large
Rational design of axial force balance mechanism , so that it can truly and fully balance out the axial force to the mechanical wire seal to create a good condition. For some plants , petroleum, chemical and other fields important products , in the factory before the test must be done to detect and Taiwan and Taiwan issues and solve problems. Some pumps can be important to design a rotor axial measuring ring , on the size of the axial force at any time to monitor , identify problems and timely solutions.
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