Equal-wall-thickness screw pump

A screw pump, constant wall thickness technology, applied to pumps, pump components, rotary piston pumps, etc., to reduce wear and improve service life

Active Publication Date: 2020-05-05
NORTHEAST GASOLINEEUM UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a screw pump with equal wall thickness, which has the advantages of improving the effect of connecting pipe strings, increasing the service life of t

Method used

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see Figure 1-4 , a screw pump with equal wall thickness, comprising a fixed bottom plate 1, the left side of the upper surface of the fixed bottom plate 1 is fixedly connected with a servo motor 2, and the middle and right sides of the upper surface of the fixed bottom plate 1 are respectively fixedly connected with a communication device 3 And the fastening sleeve 13, the inner cavity of the fastening sleeve 13 is fixedly connected with the stator 4, ...

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Abstract

The invention relates to the technical field of oil field drilling and production equipment, and discloses an equal-wall-thickness screw pump. The equal-wall-thickness screw pump comprises a fixed bottom plate, a servo motor is fixedly connected with the left side of the upper surface of the fixed bottom plate, a communicating device and a fastening sleeve are fixedly connected with the middle andthe right side of the upper surface of the fixed bottom plate correspondingly, and an inner cavity of the fastening sleeve is fixedly connected with a stator. According to the equal-wall-thickness screw pump, a centralizing anti-disengaging device is fixedly connected with the outer surface of a pipe column in a free mode, the position of the pipe column is limited in the mode that a supporting slip and a fastening sleeve in the centralizing anti-disengaging device are in threaded connection, the problem that the pipe column is disengaged due to high oil productivity is avoided, and the pipecolumn connecting and buckling effect is improved; and meanwhile, a tension anchor is connected with the outer surface of the pipe column in a sleeving mode, it is guaranteed that the circle centers formed by the cross sections of the tension anchor, the pipe column and the fastening sleeve are located at the same point, therefore abrasion caused by relative vibration of the screw pump body to thescrew pump body is reduced, and the service life of the screw pump is prolonged.

Description

technical field [0001] The invention relates to the technical field of oil field drilling and production equipment, in particular to a screw pump with equal wall thickness. Background technique [0002] Screw pump, also known as "screw pump", "Archimedes screw pump", is a pump that uses the rotation of the screw blade to make the water body spiral upward in the axial direction. It is composed of a shaft, a screw blade, and a casing. When pumping oil, place the pump obliquely in the oil so that the inclination angle of the main shaft of the pump is smaller than the inclination angle of the helical blade, and the lower end of the helical blade is in contact with the oil. Compared with ordinary single-head screw pumps, the equal-wall-thickness screw pump has a smaller eccentricity and adopts a circular motion swing mode. When the fixed-rotation contact is worn, the rubber expands more uniformly, avoiding uneven rubber expansion. As a result, the turning torque increases, and i...

Claims

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Application Information

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IPC IPC(8): F04C2/107F04C13/00F04C15/00
CPCF04C2/107F04C13/005F04C13/008F04C15/00F04C2240/805
Inventor 徐海英田昊
Owner NORTHEAST GASOLINEEUM UNIV
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