BRMU8802106Y1 - progressive vortex pump mounting arrangement with submerged motor - Google Patents

Abstract

submersible motor progressive vortex pump. The purpose of the present utility model is to provide a progressive vortex pump (11), coupled directly through its shaft to a submerged electric motor (12).

Description

CONSTRUCTIVE PROGRESSIVE VORTEX PUMP ARRANGEMENT WITH

UNDERGROUND ENGINE

[001] The present utility model relates to a submerged motor coupled progressive vortex pump used in artesian well pumping systems and mainly in oil well pumping systems.

There is a progressive vortex pump on the market, which is the subject of patent application number PI 0603597-3, this application presents a progressive vortex pump that is installed at the bottom of the well, usually more than 1000m deep. This progressive vortex pump is fixed directly to the pump tubing and its rotation movement is made through an axis that is inside the pump tube, which goes to the top of the surface well, guided by centralizers and coupled in a electric motor installed outside the well. Due to the progressive vortex pump's attachment directly to the shaft (shaft), these progressive vortex pumps cannot work deeper than 1500m as the shaft becomes vulnerable and frequent breakage can occur. Even in marine wells, it is difficult to work with the shafts, as they are very deep wells, and it becomes very difficult to prepare the installation of the engine on the surface and shaft to the pump.

[003] There is still a submerged multistage centrifugal pump coupled to a submersible motor in the market today, but the disadvantage is that the stage pressure of a centrifugal rotor is 20 times less than the pressure of a vortex pump rotor. and the one-stage length of a multistage centrifugal pump is 3 times longer than that of a progressive vortex pump. With this the number of stages of a multistage submerged centrifugal pump is larger than a progressive vortex pump and the pump becomes extremely long and can reach more than 10m in length, and in a progressive vortex pump the number of stages is 20 times shorter and stages length is 3 times shorter, making the pump extremely compact.

[004] Another problem encountered is that a multistage submerged centrifugal pump is extremely sensitive when oil is very viscous and also when gases are present yet the performance of the assembly is reduced.

The progressive vortex pump applied for in patent application PI 0603597-3 can reach a much greater depth than the multistage submerged centrifugal pump. The shaft of the progressive vortex pump is extremely short and has few stages, has no buckling problems which would cause vibrations. The progressive vortex submerged pump has 20 times fewer stages than a multistage centrifugal submerged pump and thus the internal friction is much lower and the performance is much higher.

[006] The purpose of the present utility model is to provide a progressive vortex pump (11), coupled directly through its shaft to a submerged motor (12).

[007] The submersible motor coupled progressive vortex pump (1) forms a single assembly, which is installed at the bottom of the shaft, attached to the pump tubing.

To achieve the above objective, the submerged motor progressive vortex pump (1) of the present utility model has multiple stages (13), and is coupled directly via its own shaft (14) to a submerged motor (12). ).

[009] The present utility model as well as its objects and advantages can be better understood with the attached figures, where: [010] Figure 1 shows a perspective view of the submerged motor progressive vortex pump (1);

[011] Figure 2 shows a cross-sectional view of the submerged motor progressive vortex pump (1), where we can see the position of the submerged motor (12), shaft (14) and the progressive vortex pump itself (11) .

[012] The submersible motor progressive vortex pump (1) is coupled by the shaft directly to the submerged motor (12), where the radial bearings, pump tube, diffuser, rotor and stator are mounted. Since each assembly consisting of a diffuser, a rotor and a stator form one stage (13) of the progressive vortex pump (11) and can be mounted according to the number of stages required to achieve a certain pressure for application in that will be used. The stage limit (13) is given as a function of the engine power and depth to be installed.

[013] Following the same axis (14) is coupled the submerged motor (12) at the bottom of the pump, directly on the pump shaft. As the progressive vortex pump (11) and the submerged motor (12) form a single body, the assembly will become more compact and thus there is no need to use the installed shaft to the outside surface, considerably reducing installation costs. That is, all shafts (shafts) and consequently the mechanical centralizers used in these shafts (shafts) will be eliminated, thus reducing the installation cost.

[014] Submersible motor progressive vortex pump assembly (1) can be used in oil or water wells, all submerged motor and pump assembly are installed inside the well. Since the submerged motor progressive vortex pump (1) has a short, centered shaft (14), it works without vibration and thus extends the life of the submerged motor progressive vortex pump (11) (υ- ΕΟΙ 5). It will be apparent to those skilled in the art that the present utility model can be configured in many other specific ways without departing from the spirit or scope of the present utility model. .

[016] Therefore, the present examples and embodiments should be considered as illustrative and not restrictive, this utility model should not be limited to the details provided herein, but may be modified within the scope and equivalence of the appended claims.

Claims (1)

1. CONSTRUCTIVE PROGRESSIVE VORTEX PUMP ARRANGEMENT WITH SUBMERSE MOTOR, the vortex pump consisting of a diffuser, a rotor and a stator, which form a stage (13) of the progressive vortex pump (11), in which the submerged motor (12) ) is located at the bottom of this pump (11), characterized by having the submerged motor (12) coupled directly to the axis (14) of the progressive vortex pump (11), forming a single body.