Ultrahigh-pressure wear-resistant flexible hose for oilfield fracturing

Abstract

The ultrahigh-pressure wear-resistant flexible hose comprises a booster pump, the output end of the booster pump is fixedly connected with a first connecting pipe, the outer portion of the tail end of the first connecting pipe is fixedly connected with a first connecting flange, and four inserting grooves are formed in the outer side of the first connecting flange. A sealing ring is arranged on the outer side of the first connecting flange, four through holes are formed in the sealing ring in a penetrating mode, a second connecting flange is arranged on the other side of the sealing ring, a second connecting pipe is fixedly connected to the outward side of the second connecting flange, and four limiting pins are fixedly connected to the inward side of the second connecting flange. Connecting rings are arranged at the upper ends and the lower ends of the first connecting flange and the second connecting flange. According to the connecting pipe, the connecting rings, the sealing rings, the limiting pins, the through holes, the inserting grooves, the trapezoid-shaped grooves, the bolts, the nuts and the connecting blocks work in a matched mode, and therefore the first connecting pipe and the second connecting pipe can be rapidly assembled and disassembled.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic pipeline manufacturing, in particular to an ultra-high pressure wear-resistant flexible hose for oil field fracturing. Background Art

[0002] In the oil field, fracturing refers to a method of using hydraulic force to create cracks in oil and gas layers during oil or gas production, also known as hydraulic fracturing. Fracturing is the process of artificially creating cracks in the formation to improve the flow environment of oil underground and increase the production of oil wells. It plays an important role in improving the flow conditions at the bottom of the oil well, slowing down the interlayer and improving the production of oil layers.

[0003] Most of the existing technologies cannot quickly install and disassemble the hose, and the sealing effect is not good during connection. In order to solve the shortcomings of the existing technology, an ultra-high pressure wear-resistant flexible hose for oil field fracturing is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an ultra-high pressure wear-resistant flexible hose for oil field fracturing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an ultra-high pressure wear-resistant flexible hose for oilfield fracturing, comprising a booster pump, the output end of the booster pump is fixedly connected to a first connecting pipe, the end of the first connecting pipe is externally fixedly connected to a first connecting flange, four slots are provided on the outer side of the first connecting flange, a sealing ring is provided on the outer side of the first connecting flange, four through holes are penetrated and provided in the sealing ring, a second connecting flange is provided on the other side of the sealing ring, the second connecting flange is fixedly connected to the second connecting pipe on the outer side, and four limit pins are fixedly connected to the inner side of the second connecting flange, connecting rings are provided on the upper and lower ends of the first connecting flange and the second connecting flange, a trapezoidal groove is provided on the inner side of the connecting ring, connecting blocks are fixedly connected on both sides of the connecting ring, bolts are penetrated and provided in the two connecting blocks, the other end of the second connecting pipe is fixedly connected to a wear-resistant layer, an outer rubber layer is provided on the inner side of the wear-resistant layer, and a wire winding layer is provided on the inner side of the outer rubber layer.

[0006] As a further description of the above technical solution:

[0007] The limiting pin passes through and is slidably connected to the inner wall of the through hole.

[0008] As a further description of the above technical solution:

[0009] The outer end of the limiting pin is slidably connected to the inner wall of the slot.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the trapezoidal groove is slidably connected to the outer walls of the first connecting flange and the second connecting flange.

[0012] As a further description of the above technical solution:

[0013] The outer thread of the bolt is connected with a nut, and the nut is arranged on the outside of the connecting block.

[0014] As a further description of the above technical solution:

[0015] A nylon gauze layer is arranged inside the steel wire winding layer, and an inner rubber layer is arranged inside the nylon gauze layer.

[0016] As a further description of the above technical solution:

[0017] The sealing ring is arranged between the first connecting flange and the second connecting flange.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, the first connecting pipe and the second connecting pipe can be quickly installed and disassembled through the cooperation of the connecting ring, the first connecting flange, the second connecting flange, the sealing ring, the limit pin, the through hole, the slot, the trapezoidal groove, the bolt, the nut and the connecting block, and the sealing effect of the connection can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of an ultra-high pressure wear-resistant flexible hose for oil field fracturing proposed by the utility model;

[0021] Figure 2 This is an exploded view of a sealing ring of an ultra-high pressure wear-resistant flexible hose for oil field fracturing proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of a first connecting flange of an ultra-high pressure wear-resistant flexible hose for oil field fracturing proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the installation of a connection ring of an ultra-high pressure wear-resistant flexible hose for oil field fracturing proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of the interior of an ultra-high pressure wear-resistant flexible hose for oil field fracturing proposed by the utility model.

[0025] Legend:

[0026] 1. Booster pump; 2. First connecting pipe; 3. First connecting flange; 4. Slot; 5. Sealing ring; 6. Through hole; 7. Second connecting pipe; 8. Second connecting flange; 9. Limit pin; 10. Connecting ring; 11. Trapezoidal groove; 12. Connecting block; 13. Bolt; 14. Nut; 15. Wear-resistant layer; 16. Outer rubber layer; 17. Steel wire winding layer; 18. Nylon gauze layer; 19. Inner rubber layer. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Reference Figure 1-5The utility model provides an embodiment: an ultra-high pressure wear-resistant flexible hose for oil field fracturing, including a booster pump 1, a first connecting flange 3 is fixedly connected to the outside, the cross-sectional shape of the first connecting flange 3 and the second connecting flange 8 is a trapezoid, four slots 4 are provided on the outside of the first connecting flange 3 to facilitate the insertion of a limit pin 9, a sealing ring 5 is provided on the outside of the first connecting flange 3 to achieve a sealing effect, four through holes 6 are penetrated and opened in the sealing ring 5, a second connecting flange 8 is provided on the other side of the sealing ring 5, a second connecting pipe 7 is fixedly connected to the outside of the second connecting flange 8 to achieve a connection effect, and four limit pins are fixedly connected to the inside of the second connecting flange 8 9, which plays a role in limiting the sealing ring 5. The upper and lower ends of the first connecting flange 3 and the second connecting flange 8 are both provided with connecting rings 10. The connecting ring 10 is semicircular, and a trapezoidal groove 11 is provided on the inner side of the connecting ring 10. Connecting blocks 12 are fixedly connected on both sides of the connecting ring 10. Bolts 13 are penetrated and provided in the two connecting blocks 12. The other end of the second connecting pipe 7 is fixedly connected with a wear-resistant layer 15, an outer rubber layer 16 is provided on the inner side of the wear-resistant layer 15, and a steel wire winding layer 17 is provided on the inner side of the outer rubber layer 16. The hose (not marked in the figure) is composed of the wear-resistant layer 15, the outer rubber layer 16, the steel wire winding layer 17, the nylon gauze layer 18 and the inner rubber layer 19, which has a wear-resistant effect.

[0030] The limit pin 9 passes through and is slidably connected with the inner wall of the through hole 6, which facilitates the limit pin 9 to pass through the through hole 6. The outer end of the limit pin 9 is slidably connected with the inner wall of the slot 4. The inner wall of the trapezoidal groove 11 is slidably connected with the outer walls of the first connecting flange 3 and the second connecting flange 8. The bolt 13 is externally threaded with a nut 14, and the nut 14 is arranged on the outside of the connecting block 12. The two connecting rings 10 can be locked by the nut 14. A nylon gauze layer 18 is arranged on the inner side of the steel wire winding layer 17, and an inner rubber layer 19 is arranged on the inner side of the nylon gauze layer 18. The sealing ring 5 is arranged between the first connecting flange 3 and the second connecting flange 8, and the sealing ring 5 has a sealing effect.

[0031] Working principle: When installing the hose, align the second connecting pipe 7 at one end of the hose with the first connecting flange 3 of the first connecting pipe 2 through the second connecting flange 8, then pass the sealing ring 5 through the through hole 6 to allow the limit pin 9 to pass through, and then insert the other end of the limit pin 9 into the slot 4 of the first connecting flange 3. When the first connecting flange 3 is aligned with the second connecting flange 8, place the two connecting rings 10 at the upper and lower ends of the first connecting flange 3 and the second connecting flange 8, then insert the bolts 13 into the two connecting blocks 12, and lock the two connecting rings 10 by tightening the nuts 14. The trapezoidal trapezoidal groove 11 can become tighter and tighter when it contacts the outside of the first connecting flange 3 and the second connecting flange 8. The sealing ring 5 can ensure the sealing during connection. The hose consists of a wear-resistant layer 15, an outer rubber layer 16, a steel wire winding layer 17, a nylon gauze layer 18 and an inner rubber layer 19, which has a wear-resistant effect.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-high pressure wear-resistant flexible hose for oilfield fracturing, comprising a booster pump (1), characterized in that: The booster pump (1) is fixedly connected to the output end with a first connecting pipe (2), the first connecting pipe (2) is externally fixedly connected to the first connecting flange (3), the first connecting flange (3) is provided with four slots (4) on the outside, a sealing ring (5) is provided on the outside of the first connecting flange (3), the sealing ring (5) is penetrated and provided with four through holes (6), a second connecting flange (8) is provided on the other side of the sealing ring (5), the second connecting flange (8) is fixedly connected to the second connecting pipe (7) on the outside, and the second connecting flange (8) is fixedly connected to the inside. Four limit pins (9) are connected, the first connecting flange (3) and the second connecting flange (8) are provided with connecting rings (10) at the upper and lower ends, a trapezoidal groove (11) is provided inside the connecting ring (10), connecting blocks (12) are fixedly connected to both sides of the connecting ring (10), bolts (13) are passed through and provided in the two connecting blocks (12), the other end of the second connecting pipe (7) is fixedly connected with a wear-resistant layer (15), an outer rubber layer (16) is provided inside the wear-resistant layer (15), and a wire winding layer (17) is provided inside the outer rubber layer (16).

2. The ultra-high pressure wear-resistant flexible hose for oilfield fracturing according to claim 1, characterized in that: The limiting pin (9) passes through and is slidably connected to the inner wall of the through hole (6).

3. The ultra-high pressure wear-resistant flexible hose for oilfield fracturing according to claim 1, characterized in that: The outer end of the limiting pin (9) is slidably connected to the inner wall of the slot (4).

4. The ultra-high pressure wear-resistant flexible hose for oilfield fracturing according to claim 1, characterized in that: The inner wall of the trapezoidal groove (11) is slidably connected to the outer walls of the first connecting flange (3) and the second connecting flange (8).

5. The ultra-high pressure wear-resistant flexible hose for oilfield fracturing according to claim 1, characterized in that: The bolt (13) is externally threadedly connected with a nut (14), and the nut (14) is arranged outside the connection block (12).

6. The ultra-high pressure wear-resistant flexible hose for oilfield fracturing according to claim 1, characterized in that: A nylon gauze layer (18) is arranged inside the steel wire winding layer (17), and an inner rubber layer (19) is arranged inside the nylon gauze layer (18).

7. The ultra-high pressure wear-resistant flexible hose for oilfield fracturing according to claim 1, characterized in that: The sealing ring (5) is arranged between the first connecting flange (3) and the second connecting flange (8).

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