CN210068401U

CN210068401U - Plunger type fracturing pump

Info

Publication number: CN210068401U
Application number: CN201920710809.1U
Authority: CN
Inventors: 魏福芝; 刘志振; 韩华林; 郑济峰; 薛嘉林; 刘永明; 王元元
Original assignee: Shandong's Petroleum Equipment Co Ltd
Current assignee: Shandong's Petroleum Equipment Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-02-14
Anticipated expiration: 2029-12-09

Abstract

The utility model provides a plunger type fracturing pump relates to fracturing pump technical field, can not satisfy the convenient problem of changing, sealed good and low resistance of plunger simultaneously for solving the fracturing pump. The box includes power end and fluid end, and the power end is located one side of fluid end, the power end passes through the plunger transmission with the fluid end and is connected, the plunger includes plunger core, sleeve, spacing ring and transmission end, the sleeve is located the outside of plunger core, one side of plunger core is provided with the transmission end, the spacing ring is located telescopic one side, and the spacing ring is located the outside of plunger core. And the power end and the hydraulic end are fixedly connected through a bracket. And the power end is in transmission connection with the hydraulic end through the connecting end. The plunger core is fixedly connected with the sleeve through a second fastener, and the plunger core is fixedly connected with the transmission end through a first fastener. The limiting ring is fixedly connected with the sleeve through a third fastener.

Description

Plunger type fracturing pump

Technical Field

The utility model relates to a fracturing pump technical field, in particular to plunger type fracturing pump.

Background

The fracturing pump is an important device for fracturing and acidizing operations in an oil field and improving the yield of an oil-gas well. The plunger is one of the main wearing parts of the fracturing pump, the surface layer of the plunger is easy to wear, strain, ablate and corrode, so that the plunger is replaced more frequently, the working efficiency of the fracturing pump is reduced, and the use cost is increased.

The existing plunger cannot meet the requirements of convenient replacement, good sealing performance and low friction resistance at the same time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plunger type fracturing pump to the fracturing pump that provides in solving above-mentioned background art can not satisfy the convenient problem of changing, sealed good and low resistance of plunger simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a plunger type fracturing pump, includes the box, the box includes power end and fluid end, and the power end is located one side of fluid end, the power end passes through the plunger transmission with the fluid end and is connected, the plunger includes plunger core, sleeve, spacing ring and transmission end, the sleeve is located the outside of plunger core, one side of plunger core is provided with the transmission end, the spacing ring is located telescopic one side, and the spacing ring is located the outside of plunger core.

Preferably, the power end and the hydraulic end are fixedly connected through a bracket.

Preferably, the power end is in transmission connection with the hydraulic end through the connecting end.

Preferably, the plunger core is fixedly connected with the sleeve through a second fastening piece, and the plunger core is fixedly connected with the transmission end through a first fastening piece.

Preferably, the limiting ring is fixedly connected with the sleeve through a third fastener.

Preferably, the limiting ring is provided with a hole, and the third fastening piece is positioned inside the hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the plunger type fracturing pump is easy to split the power end and the hydraulic end, the plunger is convenient to disassemble, the plunger is provided with the sleeve, the replacement is convenient, and the replacement price is low compared with that of the whole plunger.

2. Under the convenient prerequisite of changing the sleeve, the sleeve design of integral type and the combination mode with the plunger core, the advantage of bringing is very big, not only makes not having between sleeve and the plunger jar and produces unnecessary gap, obviously increases plunger efficiency, can more respond to acidity and notes sand operating mode more leisurely moreover.

3. This plunger type fracturing pump can select for use different plunger sleeve because of the different situations, and because of the plunger core is not frequent traded, can select the material of higher quality, improves the work efficiency of whole fracturing pump.

Drawings

Fig. 1 is a structural view of the present invention.

Fig. 2 is a schematic cross-sectional view of the plunger.

Figure 3 is a schematic view of one configuration of a stop collar.

Fig. 4 is a schematic sectional view taken along line H-H in fig. 3.

In the figure: 10. a plunger; 11. a plunger core; 12. a sleeve; 13. a limiting ring; 14. a transmission end; 23. a connecting end; 20. a box body; 21. a power end; 22. a fluid end; 24. a support; 31. a first fastener; 32. a second fastener; 41. a third fastener; 40. and (4) a hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, the housing 20 includes a drive connection 23 and a stationary bracket 24 between the power end 21 and the fluid end 22 for easy removal of the plunger 10.

Referring to fig. 2, all materials used for the plunger are wear resistant, rust resistant, and corrosion resistant. The plunger core 11 is matched with the sleeve 12 sleeved outside in a clearance fit mode, so that the plunger is convenient to disassemble and assemble. The sleeve 12 and the retainer ring 13 are fixed by a third fastener 41.

Further, under special use conditions, for example, the working condition of the plunger type fracturing pump is blocked, the plunger core 11 and the sleeve 12 can be replaced by the plunger core 11 and the sleeve 12 which are made of higher-strength materials, the plunger type fracturing pump is specially used for breaking through the blocked working condition, and after the high-strength plunger piece is replaced, the fracturing pump can be stopped and started instantly, so that the hydraulic end generates intermittent impulsive force.

Referring to fig. 3 and 4, the stop collar 13 has a plurality of holes 40 for passing third fasteners 41. One side of the limiting ring 13 is a smooth plane, and the other side of the limiting ring is a structure matched with the plunger core 11, so that the limiting ring 13 and the sleeve 12 are uniformly stressed and are not easy to damage in the plunger moving process.

The working principle is as follows: after the fracturing pump is started, the power end 21 provides power, pushes the plunger 10 connected to the power end through the transmission end 14, and transmits the power to the hydraulic end 22, so that high pressure required by work is generated; when the sleeve 12 needs to be replaced, the fracturing pump can be closed, the support 24 and the connecting end 23 are sequentially detached, the power end 21 and the hydraulic end 22 are separated, the transmission end 14 is detached, the plunger 10 is taken out, the limiting ring 13 and the sleeve 12 are sequentially detached, and a new sleeve is replaced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A plunger fracturing pump comprising a tank (20), characterized in that: the box (20) include power end (21) and fluid end (22), and power end (21) are located one side of fluid end (22), power end (21) are connected through plunger (10) transmission with fluid end (22), plunger (10) are including plunger core (11), sleeve (12), spacing ring (13) and transmission end (14), sleeve (12) are located the outside of plunger core (11), one side of plunger core (11) is provided with transmission end (14), spacing ring (13) are located one side of sleeve (12), and spacing ring (13) are located the outside of plunger core (11).

2. The plunger type fracturing pump of claim 1, wherein: the power end (21) and the hydraulic end (22) are fixedly connected through a bracket (24).

3. The plunger type fracturing pump of claim 1, wherein: the power end (21) is in transmission connection with the hydraulic end (22) through a connecting end (23).

4. The plunger type fracturing pump of claim 1, wherein: the plunger core (11) is fixedly connected with the sleeve (12) through a second fastening piece (32), and the plunger core (11) is fixedly connected with the transmission end (14) through a first fastening piece (31).

5. The plunger type fracturing pump of claim 1, wherein: the limiting ring (13) is fixedly connected with the sleeve (12) through a third fastener (41).

6. The plunger type fracturing pump of claim 5, wherein: the limiting ring (13) is provided with a hole (40), and the third fastening piece (41) is located inside the hole (40).