As a large-scale urban municipal project, the underground drainage pump station needs to reserve dozens of inspection ports on the ground for the maintenance and hoisting of large equipment, and needs to be equipped with access for large...
2017-09-27
In recent years, with the continuous warming of the research on marketing channels in China, the marketing management theory has achieved unprecedented development, and the business community also attaches great importance to and applies it...
2017-09-27
First, check the power supply: whether the connector is firmly connected; Whether the switch contacts tightly; Whether the fuse is blown; Whether three-phase power supply is equal. In case of open circuit, poor contact, fuse blown and phase...
2017-09-27
Cause: the packing is too tight or the impeller and pump body are blocked by sundries; Pump shaft, bearing and leakage ring rusted; The pump shaft is severely bent.
Troubleshooting: loosen the packing and dredge the water diversion tank:...
Calculation formula of shaft power of centrifugal pump
flow × lift × nine point eight one × Medium specific gravity ÷ 3600 ÷ pump efficiency
Flow unit: m3 / h,
Lift unit: M
P=2.73HQ/ η,