Mud pump overall introduction you must not know
Date:2019-01-10 Author: Click:
Mud Pump Mud Pump Mud Pump Mud Pump Mud Pump Mud Pump Mud Pump Mud Pump Mud Pump Mud Pump Mud PumpIn fact, sewage pump, slurry pump and some other non-clean water pump and mud pump in the name also have universal.This entry addresses the reader to mud pumps in the field of drilling.
Mud pump, refers to the drilling process to the drilling mud or water and other flushing liquid machinery.Mud pump is an important part of drilling equipment.
In common are circulating drilling, it is washing medium surface it ─ ─ water, mud or polymer rinses under certain pressure, through high pressure hose, faucet and center hole drill pipe column straight to the bottom of the drill bit, in order to achieve cooling bit, to clear the debris that cutting down and the purpose of conveying to the surface.
Commonly used mud pump is piston or plunger type, driven by the power machine pump crankshaft rotation, crankshaft through the crosshead and then drive the piston or plunger in the pump cylinder to do reciprocating movement.Under the alternating action of suction valve and discharge valve, the purpose of pressing and circulating flushing liquid is realized.The two main parameters of mud pump performance are displacement and pressure.
The displacement is calculated by discharging several liters per minute, which is related to the drilling diameter and the required return velocity of the flushing liquid from the bottom of the hole, that is, the larger the pore size, the larger the displacement required.The return velocity of the flushing fluid is required to flush the cuttings and rock powder from the drill bit to the bottom of the hole in time and carry them to the surface reliably.In geological core drilling, the general return velocity is about 0.4 ~ 1.0 m/min.
The pressure of the pump depends on the depth of the borehole, the resistance of the channel through which the flushing fluid passes and the nature of the flushing fluid.The deeper the hole, the greater the pipe resistance and the higher the pressure required.
With the change of drilling diameter and depth, the displacement of the required pump can also be adjusted at any time.A gearbox or a hydraulic motor is arranged in the mechanism of the pump to adjust its speed so as to achieve the purpose of changing the displacement.In order to accurately grasp the change of pump pressure and displacement, it is necessary to install a flow meter and pressure gauge on the mud pump, so that the drillers can know the operation of the pump at any time. At the same time, the pressure change can be used to determine whether the condition in the hole is normal to prevent the occurrence of accidents in the hole.