Magnetic suspension water ring conveying pump

Abstract

The invention discloses a magnetic suspension water ring conveying pump used for liquid ring water film conveying and relates to a liquid ring conveying technology used and adopted for conveying crude oil, mud, mud and sand, and other viscous substances. According to the technical scheme, the magnetic suspension water ring conveying pump comprises a rotating flange, a protective shell, a radial stator, a radial coil winding, a thrust disk, an axial stator, a supporting part, a sealing part, a power amplifier, a sensor, a controller, an axial coil winding, a rotor, a permanent magnet and spiral blades. The magnetic suspension water ring conveying pump has the beneficial effects that when viscous liquid is conveyed, a spiral liquid ring water film with water and oil rotating at the same time can be generated, it can be avoided that the water and the oil are stirred because of the huge difference of the water and oil tangential speeds to form a liquid phase which is surrounded by another liquid phase in a liquid drop manner, and finally emulsion is formed, the flowing resistance in the conveying process can be substantially lowered, and the pipe conveying energy consumption of high-viscosity oil is greatly reduced.

Description

Technical field [0001] The patent of the invention is a water ring pump for liquid ring water film transportation, and relates to a liquid ring transportation technology used when transporting crude oil, mud, sand and other viscous materials. Background technique [0002] The exploitation of heavy oil in my country began in the late 1950s. With the development of oil extraction technology, the production of heavy oil is increasing. At present, China National Petroleum Corporation's heavy oil production is about 150,000 barrels per day, and domestic heavy oil production accounts for approximately 30% to 35% of total crude oil production. When viscous oil flows along the pipeline, due to its high viscosity, it is usually in a laminar flow state. At this time, the friction is mainly the friction between the crude oil and the pipe wall and the mutual shear between the oil layers near the pipe wall. If high-viscosity oil is transported at normal temperature, the pipeline pressure mus...

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Problems solved by technology

[0004] There is a problem in the actual production of water ring water membrane, that is, the liquid ring water membrane will become unstable with the increase of transportation distance

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