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The displacement is calculated by discharging several liters per minute, which is related to the diameter of the hole and the required speed of the flushing fluid from the bottom of the hole, that is, the larger the hole diameter, the larger the required displacement. The up-and-back speed of the flushing fluid is required to flush the cuttings and rock dust cut by the drill bit away from the bottom of the hole in time, and to be carried to the surface reliably. In geological core drilling, the upward and backward speed is generally about 0.4 to 1.0 m/min.
Bearing water pressure and water volume must meet the requirements, adjust (or replace) the tightness of the packing at any time, and do not cause the shaft seal to leak. And replace the shaft sleeve in time.
A pump is a machine that delivers fluid or pressurizes fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. The pump is mainly used to transport liquids such as water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal, as well as liquid, gas mixture and liquid containing suspended solids.
The pump uses two gears to interlock and rotate to work, and the requirements for the medium are not high. The pump is equipped with a pair of rotating gears in the pump body, one active and the other passive. The entire working chamber in the pump is divided into two independent parts by the meshing of the two gears.
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