Universal three-screw pump with wide application
1.The screw units is rotating along with the external prime mover.
2.The spiral groove of the screw opens periodically,and the volume of suction cavity increases,resulting into a vacuum.
3.The medium is absorbed into the spiral groove and sealed in the spiral groove.
4.Along with the rotation of screw,the medium moves toward the outlet along the axial line of the screw.
5.The medium is pumped out.This is the operating principle of screw pump.
RSP pumps can be used in a variety of fluid media, such as lubricants, fuel oils, vegetable oils, hydraulic oils and other hydraulic fluids, ethylene glycol, polymers, emulsifiers and any non-corrosive fluids with certain lubrication characteristics.
RSP pumps can provide certificates of accreditation from major classification societies in the world.
Typical applications are:
Lubrication of diesel engines, gears, gas/steam turbines, hydraulic turbines, paper machines, etc.
Cooling and filtering of large mechanical and hydraulic systems pump transformer insulation oil into transformers.
Barges are carried out on ships, oil plants, refineries and oil tank yards.
Fuel supply for diesel engine.
Performance Viscosity:3.0 ~ 1500 mm2/s
Flow:5 ~ 5300 L/min
Maximum Pressure:4.0 Mpa
Maximum Temperature:150 ℃
How to prolong the service life of screw rod of screw pump.
In order to reduce the shutdown times of screw pump, clear water or non-sand liquid should be used to replace the pump body and the well fluid in the tubing before shutdown. To prevent the occurrence of sand buried tubing (gas anchor), sand jam and other phenomena.
The frequency conversion control technology is popularized to solve the problem of measuring the speed and start-up torque of the smooth rod, to achieve real-time, automatic, continuous, slow release of reverse torque, to reduce the sudden rise of torque and shear force during the sudden start-up of the motor, to avoid reversal, to reduce the probability of breakage and release of the sucker rod, and to prolong the period of pump inspection, but at present it is only regarded as soft. In view of the complicated geological conditions at sea and the fact that the gas, water and oil contents of screw pumps are different under different pressure differences, it is suggested that the rotational speed of all screw pumps and oil wells with frequency converters be uniformly increased to (power frequency 50HZ, drive head 5:1) 186. The speed of screw pumps can be controlled by frequency converters through adjusting frequency, and large benefit points can be selected through experiments, which greatly reduces labor intensity.