Petroleum mixing and conveying pump

Abstract

The invention relates to a petroleum mixing and conveying pump. The pump casing body is divided into an inflow cavity and a driving cavity; the constricted end of the inflow cavity is provided with a feeding port; A pressure impeller with a conical table structure is rotatably connected to the tail, and the pressure impeller includes a support block. A number of driving blades coplanar with the axis of the support block are arranged in an array on the support block. A plurality of discharge nozzles are arranged in an annular array on the inner wall of the inflow cavity corresponding to the distribution plate. A centrifugal impeller is rotatably connected in the driving cavity. The centrifugal impeller includes a rotating block. The annular array is provided with a number of centrifugal blades on the rotating block. The centrifugal impeller The support block and the rotating block of the pressure impeller are coaxially rotated and fixed, and a number of inflow nozzles are arranged in an annular array on the inner wall of the driving cavity. The inner wall is provided with a liquid inlet, and a liquid discharge port is provided at the end of the axis of the drive cavity.

Description

technical field [0001] The invention relates to a conveying pump device used for mixed driving of petroleum with different viscosities, in particular to a petroleum mixing conveying pump. Background technique [0002] Due to the different conditions in the oil field, oil with different viscosities may be produced at the same location in different time periods. If the oil with lower viscosity is transported at a faster rate, the load on the transport pump will be low, while for oil with higher viscosity, the transport will be slower. The load on the delivery pump is relatively high. If it is directly mixed and delivered, the low-viscosity oil will lose the advantage of low-viscosity fluidity, and because of the temperature drop during the delivery process, after the high- and low-viscosity oils are mixed, the delivery The rate is comparable to that delivered by high viscosity oil alone. Contents of the invention [0003] The technical problem to be solved by the present in...

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Problems solved by technology

[0002] Due to the different conditions in the oil field, oil with different viscosities may be produced at the same location in different time periods. If the oil with lower viscosity is transported at a faster rate, the load on the transport pump will be low, while for oil with higher viscosity, the transport will be slower. The load on the delivery pump is relatively high. If it is directly mixed and delivered, the low-viscosity oil will lose the advantage of low-viscosity fluidity, and because of the temperature drop during the delivery process, after the high- and low-viscosity oils are mixed, the delivery Rates comparable to those delivered by high-viscosity petroleum alone

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