1, the quality of the pump installation is very important to the smooth operation and service life of the pump, so the installation and correction must be carried out carefully and carefully.
(2) check the pump and motor after opening the box. If there is no damage due to the loading and unloading and transportation, the sealing and sealing of the inlet and outlet of the pump will be intact. No dust or contamination will enter the pump, so it can be installed.
(3) the basic plane installation of pump, the application level of leveling instrument, to be the basis of cement solidification, the pump is placed in the foundation, and the level of instrument inspection level, such as level, application of shim adjustment, until level, then by filling the hole withcement anchor bolt hole. Stainless steel self priming pump
(4) after the cement is dry and solid, check the loosening of the base and the anchor bolt eye. After being qualified, tighten the anchor bolts and re check the level.
(5) pump installation position (higher than the water level in the pump suction range), should be in the suction line valve is mounted, and the discharge pipe arranged on the liquid filling hole or valve, the irrigation pump used before the start. When the position of the pump is lower than the liquid level, the control valve and the filter device should be installed on the suction line to prevent the sundries from sucking the pump.
(6) the B pump equipped with the intermediate shaft and the coupling shall be strictly checked for the concentricity of the intermediate shaft and the motor shaft after all the installation is completed. The difference between the upper and lower sides of the coupling should not exceed 0.lmm. The difference between the maximum and the minimum clearance between the two half coupling ends on the circumference should not exceed 0.3mm.
(7) after the pump is installed, we should turn on the motor rear cover, turn the fan impeller, feel the even weight, and pay attention to distinguish the frictional noise and the foreign body rolling noise. If there is, we should try to eliminate it. What should be paid attention to when the self suction magnetic pump pipeline is installed?
(L) line suction and discharge pipe shall have the respective support pump does not allow the weight of the pipeline directly to bear by the pump, so as not to pump down.
(2) the structure of the pump suction pipe and the pipe connector should be designed according to the conditions of use. The pressure and torque to ensure that the pipe is transmitted to the pump body does not exceed the allowable value. At the same time, we should ensure that the liquid flow of the population should be smooth and avoid the speed change in the pipe connection, such as the elbow, the valve and so on. The change of population velocity has great influence on pump head, cavitation allowance and pump's smooth operation.
(3) the height, length and diameter of the pump suction pipe should meet the calculated value of NPSH.
(4) when the suction pipeline is higher than the pump body installation, suction pipe and calculation must ensure that the flow rate does not exceed 2m / S; when the discharge pipe is lower than the pump body installation, the discharge pipe calculation must ensure that the flow rate is no more than 2.5m / S; when the liquid is close to the boiling point, the flow rate should not exceed 0.8m / S.
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