High-pressure wear-resistant movable elbow

Abstract

The utility model discloses a high-pressure wear-resistant movable elbow, which relates to the technical field of movable elbows and comprises a first union disc, a connecting seat is arranged on the outer surface of the lower end of the first union disc, a common joint is arranged on the outer surface of the lower end of the first union disc, and a connecting groove is arranged on the outer surface of the upper end of the common joint. The connecting base is connected into the common connector through a connecting groove, an elbow body is arranged on the outer surface of the lower end of the common connector, a pipe jacking opening is formed in the top end of the elbow body and connected into the common connector, and a blocking pad is arranged on the outer surface of the front end of the pipe jacking opening. According to the high-pressure wear-resistant movable elbow, the elbow body and the double-end elbow body are arranged, so that the movable elbow has high structural strength, the wear-resistant layers are arranged on the inner walls of the elbow body and the double-end elbow body, and the wear-resistant layers are made of lining diamond materials, so that the movable elbow can bear high pressure and is high in friction resistance; the durability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of movable elbows, in particular to a high-pressure wear-resistant movable elbow. Background Art

[0002] High-pressure flexible elbows are special pipeline transmission equipment used in oilfield drilling, cementing, fracturing and other operations. A large number of flexible elbows are required in fracturing operations to connect the fracturing truck with the high-pressure manifold and the wellhead to transport high-pressure fracturing fluid.

[0003] Due to the harsh working environment, high working pressure and large internal flow of high-pressure movable elbows, it is very easy for the fluid to erode the sealing device at the connection of the high-pressure movable elbow, thereby causing the failure of the seal of the high-pressure movable elbow, which not only affects the safety of construction operations, but also easily causes major casualties. In order to solve the shortcomings of the existing technology, we propose a high-pressure wear-resistant movable elbow. Utility Model Content

[0004] The main purpose of the utility model is to provide a high-pressure wear-resistant movable elbow, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A high-pressure wear-resistant movable elbow comprises a No. 1 union disc, a connecting seat is provided on the outer surface of the lower end of the No. 1 union disc, a common joint is provided on the outer surface of the lower end of the No. 1 union disc, a connecting groove is provided on the outer surface of the upper end of the common joint, the connecting seat is connected to the inside of the common joint through the connecting groove, an elbow body is provided on the outer surface of the lower end of the common joint, a top pipe opening is provided on the top of the elbow body, the top pipe opening is connected to the inside of the common joint, a blocking pad is provided on the outer surface of the front end of the top pipe opening, two groups of sealing rings are provided on the outer surface of the top pipe opening, both groups of sealing rings are connected to the inner wall of the common joint, a No. 1 pipe interface is provided at the end of the elbow body, a double-headed elbow body is provided on the outer surface of the No. 1 pipe interface, a top pipe opening is also provided on the top of the double-headed elbow body, a threaded interface is provided at the end of the double-headed elbow body, a No. 2 pipe interface is provided on the outer wall of the threaded interface, a No. 2 pipe interface is provided on the outer surface of the upper end of the No. 2 pipe interface, and a terminal joint is provided on the outer surface of the upper end of the terminal joint, and a No. 2 union disc is provided on the outer surface of the upper end of the terminal joint.

[0007] Preferably, the double-ended elbow body and the inner wall of the elbow body are both provided with a wear-resistant layer, the inner surface of the front end of the double-ended elbow body is provided with multiple groups of steel balls, the outer surface of the front end of the double-ended elbow body is provided with a blocking pad, and the blocking pad is connected to the No. 1 pipe interface, and the outer surface of the front end of the double-ended elbow body is provided with two groups of sealing rings, the two groups of sealing rings are connected to the inner wall of the No. 1 pipe interface, and the outer surface of the threaded interface is also provided with two groups of sealing rings connected to the inner wall of the No. 2 pipe interface.

[0008] Preferably, the outer surfaces of the first union disc and the second union disc are each provided with two groups of protrusions, the upper ends of the first union disc and the second union disc are each provided with connecting pipe openings, and the outer surfaces of the lower ends of the first union disc and the second union disc are each provided with two groups of movable clamping blocks.

[0009] Preferably, a connecting seat is provided between the common joint and the No. 1 union disk, and the common joint and the No. 1 union disk are detachably connected through the connecting seat; a top pipe opening is provided between the common joint and the elbow body, and the common joint and the elbow body are detachably connected through the top pipe opening.

[0010] Preferably, a No. 1 pipe interface is provided between the elbow body and the double-headed elbow body, and the elbow body and the double-headed elbow body are detachably connected via the No. 1 pipe interface.

[0011] Preferably, a No. 2 pipe interface is provided between the double-ended elbow body and the end joint, and the double-ended elbow body and the end joint are detachably connected via the No. 2 pipe interface.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, the elbow body and the double-head elbow body are provided, so that the movable elbow has a strong structural strength. The inner walls of the elbow body and the double-head elbow body are both provided with a wear-resistant layer, wherein the wear-resistant layer is lined with diamond material, so that the movable elbow can withstand greater pressure, has strong friction resistance, and is solid and durable.

[0015] 2. In the utility model, by setting the common joint and the end joint, the movable elbow can be connected and installed more easily, and the connection stability is high. The No. 1 union plate is fixed to the connecting groove at the upper end of the common joint through the movable block at the bottom, and the No. 2 union plate is also fixed to the end joint. The elbow body and the double-headed elbow body are connected and combined through the common joint and the end joint to complete the overall assembly of the movable elbow. A sealing ring is provided at the connection interface, which fits on both sides of the top pipe mouth to eliminate the gap caused by wear and tear, and has better flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the movable elbow of the utility model;

[0018] Figure 3 It is a schematic diagram of the connection structure of the No. 1 union plate and the common joint of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the double-head elbow body of the utility model.

[0020] In the figure: 1. Union disc No. 1; 2. Connecting pipe mouth; 3. Bump; 4. Connecting seat; 5. Common joint; 6. Elbow body; 7. Pipe interface No. 1; 8. Double elbow body; 9. Pipe interface No. 2; 10. End joint; 11. Union disc No. 2; 12. Connecting groove; 13. Sealing ring; 14. Blocking pad; 15. Threaded joint; 16. Top pipe mouth; 17. Movable block; 18. Wear-resistant layer; 19. Steel ball. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] Embodiment 1, as Figure 1-4 As shown, a high-pressure wear-resistant movable elbow is used. When the movable elbow is used, the movable elbow is connected to the high-pressure manifold and the wellhead through the first union disc 1 and the second union disc 11, and the connecting pipe port 2 at the upper ends of the first union disc 1 and the second union disc 11 is docked with the pipe port. The first union disc 1 is fixed to the connecting groove 12 at the upper end of the common joint 5 through the movable clamping block 17 at the bottom, and the second union disc 11 is also fixed to the end joint 10 with the movable clamping block 17. The elbow body 6 and the double-headed elbow body 8 of the pipe body part are connected and combined through the common joint 5 and the end joint 10, so that the overall assembly of the movable elbow can be completed, so that the movable elbow can be connected and installed more easily, and the connection stability is high. A sealing ring 13 is provided at the connection interface between the elbow body 6 and the double-headed elbow body 8, which fits on both sides of the top pipe port 16 to eliminate the gap caused by wear and have better flexibility.

[0023] Embodiment 2, as Figure 1-4 As shown, a high-pressure wear-resistant movable elbow has a strong structural strength by setting an elbow body 6 and a double-headed elbow body 8. The inner walls of the elbow body 6 and the double-headed elbow body 8 are both provided with a wear-resistant layer 18, wherein the wear-resistant layer 18 is lined with diamond material, so that the movable elbow can withstand greater pressure, has strong friction resistance, and is solid and durable. By setting a sealing ring 13 and a plugging pad 14, the sealing ring 13 can not only achieve secondary sealing, but also the extrusion elasticity of the sealing ring can reduce the wear of the top pipe mouth 16 and the steel ball 19 caused by severe vibration of the elbow, thereby further improving the durability and safety of the device.

[0024] How it works

[0025] It should be noted that the utility model is a high-pressure wear-resistant active elbow. When in use, the active elbow is connected to the high-pressure manifold and the wellhead through the No. 1 union plate 1 and the No. 2 union plate 11, and the connecting pipe port 2 at the upper end of the No. 1 union plate 1 and the No. 2 union plate 11 is docked with the pipe port. The No. 1 union plate 1 is fixed to the connecting groove 12 at the upper end of the common joint 5 through the active block 17 at the bottom. The No. 2 union plate 11 is also fixed to the end joint 10 with the active block 17. The elbow body 6 of the pipe body part and the double-headed elbow body 8 are connected and combined through the common joint 5 and the end joint 10, so that the overall assembly of the active elbow can be completed. A sealing ring 13 is provided at the connection interface between the head body 6 and the double-headed elbow body 8, which fits on both sides of the top pipe opening 16 to eliminate the gap caused by wear. The elbow body 6 and the double-headed elbow body 8 are provided, so that the movable elbow has a strong structural strength. The inner walls of the elbow body 6 and the double-headed elbow body 8 are both provided with a wear-resistant layer 18, wherein the wear-resistant layer 18 is lined with diamond material, so that the movable elbow can withstand greater pressure. By providing the sealing ring 13 and the blocking pad 14, the sealing ring 13 can not only achieve secondary sealing, but also the extrusion elasticity of the sealing ring can reduce the wear of the top pipe opening 16 and the steel ball 19 caused by severe vibration of the elbow.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-pressure wear-resistant movable elbow, comprising a No. 1 union plate (1), characterized in that: The outer surface of the lower end of the first union plate (1) is provided with a connection seat (4), the outer surface of the lower end of the first union plate (1) is provided with a common joint (5), the outer surface of the upper end of the common joint (5) is provided with a connection groove (12), the connection seat (4) is connected to the inside of the common joint (5) through the connection groove (12), the outer surface of the lower end of the common joint (5) is provided with an elbow body (6), the top end of the elbow body (6) is provided with a top pipe opening (16), the top pipe opening (16) is connected to the inside of the common joint (5), the front end outer surface of the top pipe opening (16) is provided with a blocking pad (14), the outer surface of the top pipe opening (16) is provided with a Two groups of sealing rings (13) are arranged, and both groups of sealing rings (13) are connected to the inner wall of the common joint (5). The end of the elbow body (6) is provided with a No. 1 pipe interface (7), and the outer surface of the No. 1 pipe interface (7) is provided with a double-headed elbow body (8), and the top of the double-headed elbow body (8) is also provided with a top pipe opening (16). The end of the double-headed elbow body (8) is provided with a threaded interface (15), and the outer wall of the threaded interface (15) is provided with a No. 2 pipe interface (9), and the upper outer surface of the No. 2 pipe interface (9) is provided with a terminal joint (10), and the upper outer surface of the terminal joint (10) is provided with a No. 2 union disc (11).

2. The high-pressure wear-resistant movable elbow according to claim 1, characterized in that: The inner walls of the double-headed elbow body (8) and the elbow body (6) are both provided with a wear-resistant layer (18); the inner surface of the front end of the double-headed elbow body (8) is provided with a plurality of groups of steel balls (19); the outer surface of the front end of the double-headed elbow body (8) is provided with a plugging pad (14); the plugging pad (14) is connected to the No. 1 pipe interface (7); the outer surface of the front end of the double-headed elbow body (8) is provided with two groups of sealing rings (13); the two groups of sealing rings (13) are connected to the inner wall of the No. 1 pipe interface (7); the outer surface of the threaded interface (15) is also provided with two groups of sealing rings (13) connected to the inner wall of the No. 2 pipe interface (9).

3. The high-pressure wear-resistant movable elbow according to claim 1, characterized in that: The outer surfaces of the first union disc (1) and the second union disc (11) are both provided with two groups of protrusions (3); the upper ends of the first union disc (1) and the second union disc (11) are both provided with connecting pipe openings (2); and the outer surfaces of the lower ends of the first union disc (1) and the second union disc (11) are both provided with two groups of movable clamping blocks (17).

4. The high-pressure wear-resistant movable elbow according to claim 1, characterized in that: A connecting seat (4) is provided between the common joint (5) and the first union disc (1), and the common joint (5) and the first union disc (1) are detachably connected via the connecting seat (4); a top pipe opening (16) is provided between the common joint (5) and the elbow body (6), and the common joint (5) and the elbow body (6) are detachably connected via the top pipe opening (16).

5. The high-pressure wear-resistant movable elbow according to claim 1, characterized in that: A first pipe interface (7) is provided between the elbow body (6) and the double-headed elbow body (8), and the elbow body (6) and the double-headed elbow body (8) are detachably connected via the first pipe interface (7).

6. The high-pressure wear-resistant movable elbow according to claim 1, characterized in that: A second pipe interface (9) is provided between the double-ended elbow body (8) and the end joint (10), and the double-ended elbow body (8) and the end joint (10) are detachably connected via the second pipe interface (9).

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