The basic structure is composed of multi-stage pump water segment, water, middle, end caps, impellers, pump, shaft, bearings, seal rings 150D30X7 multistage centrifugal pump shaft, stuffing and other member. 1, the impeller is the core part of the multi-stage pump, which speed up 150D30X9 multistage centrifugal force of the impeller blade impeller also played a major role in the assembly before the impeller through the static equilibrium experiments. Inner and outer surfaces of the impeller require smooth 150D30X6 multistage centrifugal flow to reduce friction losses. 2, the water segment, the water segment, the middle, also known as the pump casing, which is the subject of a multi-stage pump. Fixed play a supporting role, and connected with the installation of the bearing bracket. 3, the role of the pump shaft and the motor is connected by the coupling, the torque of the motor is transferred to the impeller, so it is the transmission of mechanical energy of the main member. 4, the bearing sleeve is supported on the pump shaft in the pump shaft member, there are two kinds of rolling bearings and sliding bearings. Rolling refuel using butter as a lubricant to the appropriate volume is generally much 2/3 3/4 may have a fever, there are too few sound and heat! Sliding bearing is used as a lubricant of a clear oil, fuel oil level line. Too many to be leaking oil along the shaft and drift cheap, too little overheated bearings also burn accident! The pump during operation of the bearing maximum temperature of 85 degrees in the general run at about 60 degrees, and if necessary to find the cause of high (if there are impurities, oil is black, is water) and timely manner! Five pump failure excessive power consumption reasons: 1. Fever 2. packing too tight and the flow is set too high and the housing 3. The rotor has a grazing 4. 5. pump shaft bearing wear bending Solution: 1. 2. appropriate to relax the pressure off a small filler valve opening of the rotor and the casing trim 3. 4. Replace the bearing position 5. Replace or correct the fault pump vibration increased six reasons: a partial blockage of the impeller wheel breakage 3. 2. Flow 4. The motor shaft is too small misalignment 5. 6. mixed with air bearings damaged cavitation solutions occur: 1. Removing foreign body removal 2. Replace the outlet valve slightly open impeller 3. 4. 5. Change inhaled fixed alignment position Improving the multistage centrifugal pump suction pipe, 150D30X9 multistage centrifugal impeller, dg multistage centrifugal pump provided by Anguo Stone yuan Pump Company. Shi Yuan Yasukuni City Pump Co., Ltd. (www.shiyuanbeng.com) is specialized in the "IS centrifugal pump, XA centrifugal pump, BA centrifugal, B-type pump, double suction centrifugal pump" of the enterprise, the company of "honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Geng wheat.