What mud pump pump is better

mud pump, drilling fluid conveying what pump

in the United States in the gulf of Mexico, with shallow water supply ship delivery of drilling fluid to the drilling platform. Drilling fluid is the glue, a mixture of water and chemicals, fillers, used to flush to the surface cuttings from the bit position. The drilling fluid from tender to the conventional drilling fluid pump on the drilling rig is in horizontal centrifugal pump. The outlet pressure of 125 ~ 225 psig, conveying flow restrictions in a minute between 300 ~ 500 gal. The design of the drilling fluid to relative density is calculated by formula. Relative density of 1. 7 ~ 2. 3 drilling fluid conveying viscosity of 100 cp, usually solid content of 30%. 003 in range.

centrifugal pump running at a speed of 1750 revolutions per minute, efficiency is about 40%. The size of the corresponding two levels of screw pump used as drilling fluid pump will run at less than 300 revolutions per minute, efficiency up to 75%. This can be applied to a small motor, low cost, also can reduce energy consumption. And the velocity is relatively constant, not affected by the influence of the outlet pressure. Low volatility, facilitate flow measuring. Drilling fluid of low shear, extended the failure time interval ( MTBFs) 。 Centrifugal pump must be at a high speed to need the pressure head. When transmission drilling fluid with abrasive particles, used in centrifugal water pump buffer to extend the service life. Like all rotation, positive displacement pump, screw pump flow, is not dependent on the pressure head, Pressure) 。 Screw pump shaft seal is installed on the replaceable shaft sleeve of the conventional seals. Most European supply ships have with screw pump to pump fluid for many years. So what drilling fluid conveying pump better problem we suggest that the drilling fluid pump on the basis of experience with type G single screw pump is better.

mud pump performance parameters as below

1, fixed speed of single screw pump performance parameters of the

type

flow ( m3 / h)

pressure ( Mpa）

allowed maximum revolutions ( r / min) Motor power (

千瓦)

necessary NPSH ( m）

inlet flange sizes ( mm）

outlet flange size ( mm）

allow particles diameter ( mm）

note: the above test when the test data of single screw pump is the normal temperature water, according to different medium, different speed, the performance parameters will change completely so the greater the viscosity, flow rate of the single screw pump will be smaller, the flow rate is inversely proportional to the viscosity, flow rate is proportional to the speed, the viscosity recommended according to the model parameter selection of high viscosity pump listed in the table below.

2, high viscosity pump coal water slurry type of screw pump parameters and model parameters and pictures, picture

( 1) High viscosity pump, coal-water slurry, stepless speed regulation of screw pump pictures below

( 2) High viscosity pump model parameters, coal-water slurry screw pump model parameter

type

flow m3 / h

mpa pressure

speed r/min

geared matching speed regulating motor ( 千瓦)

note: conveying coal water slurry or high wear medium to high viscosity pump drive form shall be the gear speed matching electromagnetic speed regulating motor or mechanical stepless variable speed motor, flow along with the change of speed stepless adjustable.

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the mud pump and what drilling fluid conveying pump of pump self-priming pump original knowledge articles by professional.

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