Bad installation:
Reason 一: poor assembly and eccentric foundation. A, check method, the conditions and characteristics: 1, check the concentricity of coupling; 2, to check whether there is crack and pump concrete buildings; 3, check the pump foundation for uneven subsidence, seismic shock caused by the eccentric phenomenon. B, measures: readjust the shaft center.
Reason二 not when running, the concentricity is good, and appear eccentric during operation. A, inspection method, the conditions and characteristics: 1, the pump discharge side has telescopic joint, when the pump is running, whether the coupling has A lot to move; 2, support the concrete of the discharge pipe for crack; 3, whether mobile pump operation foundation; 4, when the pump is running, there is a lot of water gushed out from the packing, or with air suction; 5, pump just a stop, whether there are eccentric shaft (high temperature liquid). B, measures: 1, changing the structure of the coupling; 2, install in telescopic coupling activities connected to the control of bolts, the mobile does not affect the pump; 3, the head of road was enclosed with concrete, unable to move.
Reason 三: flange flexible coupling of uneven or rubber pieces of rubber. A, check method, the conditions and characteristics: 1, check whether coupling bolt diameter of rubber one uniform; 2, the coupling bolt rubber parts is too thick, difficult to insert coupling; 3, the coupling bolt rubber parts is too long, after insert coupling, tighten the nut and compressed rubber parts, rubber parts in the state in which it is difficult to insert. B, measures: 1, choose coupling bolt rubber parts, size is appropriate. |