Coal mine multistage centrifugal pump is not the cause of the water solution

Mine multistage pump is widely used in coal mines, mine drainage, the most common type is a MD type mining wear-resisting multistage centrifugal pump. Mechanized equipment, there is always a variety of failure and accidents, multistage centrifugal pump is not water is one of them. Mine multistage pump is can't have what causes water? Don't on water and how to solve? 1, check the coal mine with multistage centrifugal pump inlet valve has not opened, not open open, please. Have inlet water, there is a foreign body jam. No water is the water tank is missing, filling water can be solved. First start, boiler multistage pump needs emptying. 2, check to see if the reversal of the pump reversal dozen don't water, adjust the coal mine multistage centrifugal pump are both ( Turn clockwise to positive) , if there is a frequency converter control, manual and automatic dynamic view points, respectively. 3, check the multistage water pump export pipeline has not blocked. Inlet pipe bend fractures, the junction between inlet pipe and the water pump in small clearance, are likely to make the air into the intake pipes. Inlet pipe because of long-term potential, underwater pipe wall corrosion holes, multistage centrifugal pump the water falling after work, when the hole above the water, the air enters from the hole pressure pipe. 4, contact with the coal mine multistage centrifugal pump inlet pipe of the horizontal section under flow direction of the application of 0. More than 5 down slope, connect one end of the water pump imported as the highest, don't completely level. If up, cock would survive the air inlet tube, to reduce the vacuum in the pipes and pumps, water absorption. 5, before starting the multistage centrifugal pump in coal mine not meet enough water, sometimes look of irrigation water from vent overflow, turn the water pump shaft to hand in the air but not fully discharge, caused a few remaining in the air inlet pipe or the pump body. 6, the mechanical failure of coal mine multistage pump itself. Impeller and the pump shaft fastening nut loose or pump shaft bending deformation, move more, cause impeller directly with the pump body friction, or bearing damage, are likely to reduce the speed of the water pump. 7, coal mine of multistage centrifugal pump packing for long-term use have wear or too loose, causing a lot of water spewing from the clearance between the pump shaft sleeve and packing, as a result, the external air from entry to the interior of the pump, the clearance affects the water. 8, engine maintenance work. Motor winding burned, loss, and maintenance of winding turns, wire diameter, the change of the wiring method, or maintenance of the fault is not completely ruled out factors also can make water pump speed change. 9, man-made factors. Some users because of the original motor damage, casually and deserve to go up another electric motor drive, the result is that small flow, lift and lower the consequences of not even water. More than 10, if everything is normal, that have a look at mine multistage pump nameplate on the lift. If there is water out, just the pressure can not reach, please close the export total valve, startup boiler multistage pumps, to see if the pressure can reach or exceed the set pressure, try them one by one. If you can reach or exceed set pressure, then start the N - 1 pump ( N give priority to water pump stations) , slowly open the main valve to the pressure is quite varied stops rotating and nameplate. If at that time, the traffic is not enough users, so is the boiler multistage pump flow small, need to increase the water pump or replace the big flow of the pump. 11, closing mine multistage pump shutoff valves, pressure or multistage pump apart to boiler, the boiler multistage pump is whether the loss or damage to the impeller in the pump body, if it is more bad, please. 12, if not these reasons, please confirm your coal mine multistage centrifugal pump can meet the design of the flow and head.
Using our JT to differentiate our content, services and consumer products, we seek to develop the most creative, innovative and profitable entertainment experiences and related products in the world.
For more advice on tips, please visit our website J&T INDUSTRY. Do not hesitate to contact us if you are interested.
submersible pump are raising the stakes of social marketing, but they also ease the sales process by providing ways for winter cover pump to effectively interact with customers.
To ensure desired results, it is very essential that you get the right kind of from a certified provider..