CN215030080U

CN215030080U - Large-displacement spiral pusher

Info

Publication number: CN215030080U
Application number: CN202120823484.5U
Authority: CN
Inventors: 杨令; 付园园; 汤永胜; 赵光辉; 孔炯炯
Original assignee: Cangzhou Huayou Feida Solids Control Equipment Co ltd
Current assignee: Cangzhou Huayou Feida Solids Control Equipment Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-07
Anticipated expiration: 2031-04-21

Abstract

A large-discharge spiral pusher. The utility model comprises a blade and a core tube, wherein the wall of the core tube is provided with a radial liquid flow hole, the outer circumference of the core tube is fixedly provided with a helical blade, the core tube sequentially comprises a left core tube, a middle core tube and a right core tube along the liquid flow direction, and the left core tube, the middle core tube and the right core tube are sequentially and fixedly connected; the inner diameter of the middle core pipe is larger than the inner diameters of the left core pipe and the right core pipe; a partition plate I is fixedly arranged in an inner hole of the left core pipe close to the end of the middle core pipe; a plugging shaft is fixedly arranged in an inner hole of the right core tube close to the end of the middle core tube; and a partition plate II is fixedly arranged in the middle of the inner hole of the middle core pipe. The structure has the advantages that the structure is reasonable in design, the area of the liquid discharge hole is increased by increasing the diameter of the middle core pipe, and the slurry discharge capacity is effectively improved; the slurry flow direction is guided by the V-shaped guide grooves, and the slurry conveying efficiency is effectively improved.

Description

Large-displacement spiral pusher

Technical Field

The utility model relates to a centrifuge's stoker especially relates to a big discharge capacity spiral stoker.

Background

With the continuous progress of the petroleum drilling technology, the drilling corollary equipment needs to be continuously upgraded to meet the requirements. At present, a centrifugal machine pusher has a single structure and small discharge capacity, and cannot meet the requirements of large discharge capacity and high efficiency of a slurry pump.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect that the prior spiral pusher cannot meet the requirements of large-displacement and high-efficiency slurry conveying, the utility model provides a large-displacement spiral pusher.

The utility model provides a technical scheme that its technical problem adopted is: a large-displacement spiral pusher comprises blades and a core tube, wherein a radial liquid flow hole is formed in the wall of the core tube, a spiral blade is fixedly mounted on the outer circumference of the core tube, the core tube sequentially comprises a left core tube, a middle core tube and a right core tube along the liquid flow direction, and the left core tube, the middle core tube and the right core tube are sequentially and fixedly connected; the inner diameter of the middle core tube is larger than the inner diameters of the left core tube and the right core tube.

A partition plate I is fixedly arranged in an inner hole of the left core pipe close to the end of the middle core pipe; a plugging shaft is fixedly arranged in an inner hole of the right core tube close to the end of the middle core tube; and a partition plate II is fixedly arranged in the middle of the inner hole of the middle core pipe.

The radial liquid flow hole is arranged on the pipe wall of the middle core pipe; the radial liquid flow hole is a long round hole and is axially arranged along the middle core pipe; the number of the radial liquid flow holes is 4 or more than 4 and the radial liquid flow holes are evenly distributed along the circumference.

An abrasion-resistant plate is fixedly arranged on the inner pipe wall of the middle core pipe between every two adjacent radial liquid flow holes along the axial direction, and the abrasion-resistant plate is triangular; the shape of the outer circumference of the partition plate II is matched with that of the triangular wear-resisting plate.

The left end of the plugging shaft is provided with an annular diversion trench, and the annular diversion trench is V-shaped.

Further, the V-shaped angle of the annular diversion trench is 60-110 degrees.

Still further, the V-arrangement angle of annular guiding gutter is 80 ~ 90.

The radial through hole arranged on the pipe wall of the left core pipe is an auxiliary liquid flow hole.

The left core tube and the right core tube are fixedly connected with the middle core tube through connecting plates respectively.

Further, the outer surface of the wear-resisting plate is plated with a wear-resisting layer.

Further, the number of the radial liquid flow holes is 6-10.

The utility model has the advantages that the structure design is reasonable, the area of the liquid discharge hole is increased by increasing the diameter of the middle core pipe, and the slurry discharge capacity is effectively improved; the slurry flow direction is guided by the V-shaped guide grooves, and the slurry conveying efficiency is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of the large-displacement screw pusher of the present invention.

Fig. 2 is a schematic view of the cross-sectional three-dimensional structure of the middle core tube of the present invention.

Fig. 3 is a schematic view of the vertical section three-dimensional structure of the present invention.

In the figure: 1. the device comprises a left core pipe, 2 parts of a partition plate I, 3 parts of a connecting plate, 4 parts of a middle core pipe, 5 parts of partition plates II, 6 parts of wear-resisting plates, 7 parts of auxiliary liquid flow holes, 8 parts of a right core pipe, 9 parts of a plugging shaft, 10 parts of blades, 11 parts of radial liquid flow holes and 12 parts of annular diversion trenches.

Detailed Description

The present invention will be further explained with reference to the drawings and examples. However, those skilled in the art should understand that the present invention is not limited to the specific embodiments listed, and the present invention should be included in the protection scope of the present invention as long as the spirit of the present invention is met.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "left", "right", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be mechanically coupled, directly coupled, indirectly coupled through an intermediary, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

See figures 1-3. The utility model relates to a big discharge capacity spiral pusher, including blade 10, core pipe, be provided with radial liquid flow hole on the pipe wall of core pipe, fixed mounting has spiral helicine blade 10 on the outer circumference of core pipe for the propulsion separation of mud.

The core pipe sequentially comprises a left core pipe 1, a middle core pipe 4 and a right core pipe 8 along the liquid flow direction, and the left core pipe 1, the middle core pipe 4 and the right core pipe 8 are sequentially and fixedly connected; the inner diameter of the middle core tube 4 is larger than the inner diameters of the left core tube 1 and the right core tube 8. Further, the left core tube 1 and the right core tube 8 are respectively and fixedly connected with the middle core tube 4 through the connecting plate 3, preferably, fixedly connected in a welding mode.

A partition plate I2 is fixedly mounted in an inner hole of the left core pipe 1, which is close to the end of the middle core pipe 4, and is used for preventing slurry from overflowing, and a slurry conveying pipe (not shown in the figure) penetrates into the middle core pipe 4 from a central through hole of the partition plate I2.

A plugging shaft 9 is fixedly arranged in an inner hole of the right core tube 8 close to the end of the middle core tube 4 and is used for plugging the right end of the right core tube 8; preferably, the left end faces of the right core tube 8 and the plugging shaft 9 are flush. The left end of the plugging shaft 9 is provided with an annular diversion trench 12, and the annular diversion trench 12 is V-shaped, so that the accelerated discharge of slurry is facilitated. Preferably, the V-shaped angle of the annular guide groove 12 is 60 to 110 °, and when the V-shaped angle of the annular guide groove 12 is 80 to 90 °, the guide effect is better.

The radial liquid flow holes 11 are arranged on the pipe wall of the middle core pipe 4; the radial liquid flow hole 11 is an oblong hole and is arranged along the axial direction of the middle core tube 4. The number of the radial liquid flow holes 11 is 4 or more than 4 and the radial liquid flow holes are uniformly distributed along the circumference; preferably, the number of the radial liquid flow holes 11 is 6-10, and when the number of the radial liquid flow holes 11 is 8, the effect of increasing the displacement is better.

A partition plate II 5 is fixedly mounted in the middle of an inner hole of the middle core tube 4 and used for separating slurry, and a central through hole is formed in the partition plate II 5.

An abrasion-resistant plate 6 is fixedly arranged on the inner pipe wall of the middle core pipe 4 between the adjacent 2 radial liquid flow holes 11 along the axial direction, and an abrasion-resistant layer is plated on the outer surface of the abrasion-resistant plate 6, so that the middle core pipe 4 is prevented from being quickly abraded and corroded by slurry. Preferably, the wear plate 6 is triangular in shape with one side matching the inner bore of the central core tube 4. The shape of the outer circumference of the partition plate II 5 is matched with 2 sides of a triangular wear-resisting plate 6.

Further, the radial through hole arranged on the tube wall of the left core tube 1 is an auxiliary liquid flow hole 7.

Use the utility model discloses big discharge capacity spiral pusher, mud conveyer pipe (not shown in the figure) loop through baffle I2, baffle II 5 and get into middle core pipe 4, and mud area is pressed and is sprayed on the V-arrangement annular guiding gutter 12 of the 9 left end faces of shutoff axle, and under annular guiding gutter 12's effect, mud changes the radial liquid flow hole 11 discharge of liquid flow direction from middle core pipe 4, later impels by blade 10.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims.

Claims

1. The utility model provides a big discharge capacity spiral pusher, includes blade, core pipe, is provided with radial liquid flow hole on the pipe wall of core pipe, and fixed mounting has helical blade, characterized by on the outer circumference of core pipe:

the core pipe sequentially comprises a left core pipe, a middle core pipe and a right core pipe along the liquid flow direction, and the left core pipe, the middle core pipe and the right core pipe are sequentially and fixedly connected; the inner diameter of the middle core pipe is larger than the inner diameters of the left core pipe and the right core pipe;

2. A large capacity screw pusher according to claim 1 wherein: the radial liquid flow hole is arranged on the pipe wall of the middle core pipe; the radial liquid flow hole is a long round hole and is axially arranged along the middle core pipe; the number of the radial liquid flow holes is 4 or more than 4 and the radial liquid flow holes are uniformly distributed along the circumference;

3. A large capacity screw pusher according to claim 2 wherein: the left end of the plugging shaft is provided with an annular diversion trench, and the annular diversion trench is V-shaped.

4. A large capacity screw pusher according to claim 3 wherein: the V-shaped angle of the annular diversion trench is 60-110 degrees.

5. The large capacity screw pusher of claim 4, wherein: the V-shaped angle of the annular diversion trench is 80-90 degrees.

6. A large capacity screw pusher according to any one of claims 1 to 5 wherein: the radial through hole arranged on the pipe wall of the left core pipe is an auxiliary liquid flow hole.

7. The large capacity screw pusher of claim 6, wherein: the left core tube and the right core tube are fixedly connected with the middle core tube through connecting plates respectively.

8. A large capacity screw pusher according to claim 2 wherein: the outer surface of the wear-resistant plate is plated with a wear-resistant layer.

9. The large capacity screw pusher of claim 8, wherein: the number of the radial liquid flow holes is 6-10.