跳至主要内容

Mono Screw Pump Working Principle and Apllication



Mono screw pump, also called sewage pump or progressive cavity pump, belongs to the rotor type positive displacement pump. 
Mono screw pump is depending on the screw meshing with liner on the discharge and suction cavity to conveying liquid volume change. It is a kind of method of pressurized screw pump, a main working parts by bushing has a double helix cavity (stator) and the stator cavity and its meshing singlehead screw screw (rotor). When the input shaft through the universal joint drive making planets revolving around the center of the stator, rotor stator, rotor, vice is continuous mesh form sealed cavity, the seal chamber volume invariably uniform axial movement, the medium from the suction end of deputy to the stator, rotor pressure side, the suction medium sealed cavity through the stator without stirring and destruction.
Mono screw pump is an ideal pump used to feed drilling fluids to decanter centrifuge. Since mud is evenly pushed to proceed along the axial direction, the inner flow speed is kept low, volume unchanged and pressure stable so that vortex and agitation are prevented. Mono screw pump can also be used for wet mud drilling waste management and cuttings transportation.
The Mono screw pump shaft is made of stainless steel and even the whole pump can be made of stainless steel.
The stator is made of elastomeric material, so it gives the pump a more competitive advantage than other pumps to transfer fluids of high viscosity and fluids with hard suspended particles.
The advantages of mono screw pump are compact structure, small size and easy maintenance. Rotor and stator as wearing parts of this pump are simple to be replaced.

评论

此博客中的热门博文

Drilling Waste Separation by Solidification and Stabilization

Drilling waste separation  from the mud at the shale shakers may be coated with so much mud that they are unsuitable for the drilling mud recycle or disposal step or are difficult to handle or transport. Constituents of the drilling cuttings or the mud coating them, like oil or metals, may leach from the drilling waste, making them unsuitable for land application or burial requirements. Kinds of materials can be added to drilling cuttings to solidify and stabilize them. Solidification is a technology that encapsulate the drilling waste in a monolithic solid of high structural integrity. The encapsulation may be of fine drilling waste particles or of a large block or container of drilling cuttings. Solidification does not necessarily involve a chemical interaction between the drilling waste separation and the solidifying reagents but may mechanically bind the drilling waste into the monolith. Contaminant migration is restrict...

Water Based Mud Drilling Cuttings Management

In  geotechnical engineering ,   drilling fluid is used to aid the drilling of  boreholes   into the earth , o ften used while drilling  oil  and  natural gas  wells and on exploration drilling rigs , and  also for much simpler boreholes  like   water wells . Liquid drilling fluid is often called drilling mud. The three main categories of drilling fluids are water-based mud (which can be dispersed and non-dispersed), non-aqueous mud, usually called oil-based mud, and gaseous drilling fluid, in which a wide range of  gases  can be used. The main functions of drilling fluids include :  providing  hydrostatic pressure  to prevent  formation fluids  from entering into the well bore, keeping the  drill bit  cool and clean during drilling, carrying out drill cuttings, and suspending the drill cuttings while drilling is paused and when the drilling assembly is brought in and out...