Vertical self-priming pump in corrosive liquid conveying the advantages of low - bearing knowledge

Vertical self-priming pump and advantages in low corrosive liquid delivery general centrifugal pump in the transmission fluid, when the liquid level below, it is the water pump priming. For the need of bottom valve installed in the pump inlet. Over time, bottom valve by corrosion or by screens, exchange or repair is needed, and so is not very convenient. Submersible pump are used for conveying water, river water, and is used in the acid and alkali corrosive liquid such as transmission cases are prone to motor corrosion, leakage phenomenon, is not very safe. Pump were choked up with rubbish must pull the pump to clean up, is not very convenient, so is rarely used in practical application. So people made out of the submerged pump for conveying, low submerged pump solves the problems of low transmission. But due to the long axis, combined with the impeller unbalanced radial force, the shaft to the cantilever structure, thus turns on the impeller end caused great deflection. The longer the shaft, the bigger the deflection. In order to solve this problem, in the shaft bearings are installed. But as a result of the shaft for the flexible shaft, continuing unilateral bearing wear, the wear quantity is bigger, bearing violent shaking, wear faster, so the submerged pump damage frequency is higher. And shaft for too long, usually within 2 meters. Submerged pump bearing is depend on medium for cooling and lubrication of the pump. If not pumping medium for refrigeration and bearing lubrication ( This kind of situation in the empty pump and imported by the clutter jams occur) Tile burning occurs, even burning motor. While submerged pump repair installation is very troublesome. Especially when transport corrosive medium without lifting tools it is difficult to complete. All in all, submerged pump solve the problem of low transmission, but it also brings a lot of trouble in use. Shanghai, pump industry co. , LTD. , introduction of foreign advanced technology production of patented vertical self-priming pump, is aimed at the disadvantage of submerged pump, specially designed for low liquid transportation. It on the ground can replace long shaft submerged pump, self-priming height of 8 meters, and stripping pump can be used as a bottom pump in the boat. A: replace the advantages of submerged pump: 1, the overall pump for vertical structure, compared with the same parameters of submerged pump, greatly reduce the weight, and covers an area of less. Because of the axis vertical installation, shaft seal is not easy to leak. 2, long axis of the self-priming pump is cancelled, at the same time also cancelled the problem of bearing, greatly extend the maintenance period, at the same time reduce the vibration. 3, is likely to damage and need repair parts on the ground, giving maintenance has brought great convenience. Pump import is just a hollow tube, don't need a bottom valve. Such as inlet were choked up with rubbish, sort, hollow tube can be pulled out while submerged pump out the whole pump is needed to clean up. 4, submerged pump needs to determine when buy smoke liquid depth, if the liquid depth and pump shaft length discrepancy, need to change another pump, and as long as vertical self-priming pump equipped with different length of hollow tube, can pumping different depth without changing itself. 5, empty pump operation can still maintain a long time, to help find and take measures to prevent the damage to the motor, reduce the loss caused by wrong operation, good safety. 6, submerged pump must be installed in the liquid. The self-priming pump can be installed on the upper part, also can be installed in the side, and even available vacuum suction hose straight pipe can not meet the liquid resistance, flexibility is very strong. 2: save investment: due to the frequent submerged pump maintenance, generally a pool ( Slot) The need for two pump, a standby pump for maintenance, huge investment, large amount of maintenance. The self-priming pump can achieve more pool ( Slot) Share a pumps in series, in parallel, save investment. Self-priming pump can be used for gas, liquid intermittent operation, does not fear the time, saves among some equipment in the process, such as high or low trough trough, the technological process is greatly simplified, truly save money for you. 3: the work principle and application of vertical self-priming centrifugal pump: self-priming pump principle, adopt unique patent impeller and separation plate of mandatory gas-liquid separation and completing the process of suction. Its appearance, size, weight, similar to pipeline pump efficiency. Vertical self-priming pump doesn't need bottom valve, vacuum valve, gas separator and other auxiliary equipment. Normal production start without irrigation fluid, strong self-priming capacity, can replace the current widespread use of submerged pump, Low liquid pump) And as a separator and other auxiliary equipment. Normal production start without irrigation fluid, strong self-priming capacity, can replace the current widespread use of submerged pump, Low liquid pump) , as a circulation pump, tank car pump, the suction pump and motor pump. 4: material: reinforced polypropylene, steel lining and F46, PVDF, cast steel, stainless steel, 304, 316, 316 l, 904 l ( UB6) And the duplex stainless steel. Five: vertical self-priming centrifugal pump has been applied in many occasions, has continuous trouble-free, no maintenance record ( Including mechanical seal) Three years of operation units are: sichuan silver chemical group ( Ammonium phosphate) , sichuan neijiang power factory, yunnan huize lead-zinc mine, Qingdao lu da company, qilu petrochemical, resin factory in suzhou, Shanghai chlor-alkali chemical factory, Shanghai fortuna's wood industry nearly hundred enterprises.