Submersible pump maintenance methods

Submersible pump in the production of the increasingly prominent role, which is widely used in industrial and mining enterprises for drainage, irrigation and plateau, mountain water supply and other fields. Submersible pump to scientific maintenance, not only can improve work efficiency, but also reduce maintenance costs, otherwise impede the production, increase labor costs, so the routine maintenance of submersible pumps is very important today Xiaobian to share a few Submersible pump maintenance methods. Submersible pump maintenance methods 1, often refueling, regular oil change. Submersible pump every work l000h, must be changed once sealed room of oil, the motor within a year to replace the oil. On the water-filled submersible pump also need to regularly replace the upper and lower end caps, bearing the oil seal and lithium-based interior space to ensure good lubrication. On a small submersible pump with a mechanical seal, you must often open the sealing chamber filler screw to fill the lubricating oil, the mechanical seal in good lubrication, so that its working life is fully guaranteed. 2, timely anti-rust surface treatment of submersible pumps. Submersible pump after a year should be based on the corrosion of the submersible pump surface paint rust-proof treatment in a timely manner. Its internal paint rust should be depending on pump and corrosion conditions may be. Under normal circumstances, the interior is full of oil will not rust, this time inside do not have to paint. 3, timely replacement of sealed box. If you find that there is a lot of water leaking into the interior of the pump (the normal amount of leakage is 0.1 mL per hour), replace the sealed box and measure the insulation resistance of the motor windings. If the insulation resistance is lower than 0.5 MQ, it needs to be dried, the same way as the general motor winding drying. Replace the seal box should pay attention to the outer diameter and shaft hole in the O-ring seal integrity, or water leakage will submerge a large number of internal damage to motor windings. 4, often measure the insulation resistance. Use 500V or 1000V megohmmeter to measure the insulation resistance value of the stator winding of the electric pump to the chassis, and the value above 1M12 (minimum not less than 0.5Mi2) can be used, otherwise the winding should be repaired or dried to ensure the use of safety . 5, pressure test. After the overhaul of the pump or replace the mechanical seal, it should be 0.2MPa pressure test to check each part of the mouth with the surface of the seal ring and the mechanical seal of the two seal leaks, if any leakage must be re- Assemble or replace the leaky parts. Then add N7 (or N10) mechanical oil inside the sealed chamber and motor, or use Nl5 mechanical oil, sewing machine oil, No. 10, No. 15 and No. 25 transformer oil respectively. 6, reasonable custody. When not in use for a long time, the submersible sewage pump should not be immersed in water for a long time, and should be kept indoors in dry and ventilated place. The water-filled submersible pump should be cleaned first, remove the sludge and then placed in a dry and ventilated room. Submersible pump rubber cables should be protected from sunlight when stored, or easy to aging, the surface cracks will occur in serious cases will lead to lower insulation resistance or water through the cable jacket into the submersible pump outlet box, causing the power cord phase Short circuit or winding insulation resistance to zero and other serious consequences. Above is the submersible pump maintenance methods for your reference. This article belongs to Industrial Internet (Xiamen) Technology Co., Ltd. All are welcome to reprint, please indicate the author and source. Author: Asian pumps Network Editor: Yue Lijuan (QQ / micro letter:) starting: http: //beng.liuti.cn/ (service hotline:)

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