Bent pipe with high adaptability

Abstract

The invention relates to the technical field of bent pipes, and provides a high-adaptability bent pipe which comprises a bent conveying pipe section and further comprises a bent connecting pipe section and two buffering pieces, the bent connecting pipe section is used for being communicated with a pipeline in a conveying system, and meshing ring sleeves are fixedly connected to connectors on the two sides of the bent conveying pipe section; a rotating gear ring is arranged on the bent connecting pipe section, the rotating gear ring is rotationally arranged in the meshing ring sleeve so as to adjust the angle of the bent connecting pipe section, the rotating gear ring is meshed with the meshing ring sleeve so as to fix the bent connecting pipe section, and the buffering piece is arranged in the bent conveying pipe section in a sliding mode. The buffering piece is used for reducing the flowing speed of the conveyed fluid in the bent conveying pipe section. By means of the technical scheme, the problems that in the prior art, in the installation process of a bent pipe, the bent pipe is difficult to adapt to different installation angles between two pipelines, and in the prior art, the bent pipe is difficult to adapt to impact of fluid on different areas in the bent pipe are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bent pipes, and specifically, to a bent pipe with strong adaptability. Background Art

[0002] Bent pipes are conventional components used for gas transportation, oil transportation, and liquid transportation in the prior art. They are commonly used in the transportation systems of media such as natural gas and oil. During the use of bent pipes, they mainly play the role of changing the transportation direction of the transported fluid and optimizing the layout of the entire pipeline transportation system. In addition, when transporting high-speed fluids, the fluid contacts the inner wall of the bent pipe, which will reduce the transportation speed of the fluid and reduce the impact force on the transportation equipment when the fluid enters the equipment in the pipeline transportation system. Therefore, the bent pipe also plays a protective effect on the transportation equipment in the transportation system.

[0003] In the prior art, when installing a bent pipe, both ends of the bent pipe are welded to other pipelines in the transportation system to keep the bent pipe connected between the two pipelines. However, in the actual welding process, the positions of the two pipelines that need to be connected by the bent pipe sometimes do not correspond. The non-corresponding situations include subtle differences such as the horizontal height, transportation angle, and position spacing between the two pipelines, resulting in difficulties in connecting the bent pipe between the two pipelines.

[0004] In addition, during the process of installing the bent pipe into the transportation system, the bent pipe may also be connected to other bent pipelines. At this time, after the transported fluid enters the bent pipe, the main buffer area for the transported fluid in the bent pipe will change. When the transported fluid impacts the interface of the bent pipe, it is easy to affect the connection sealing performance between the bent pipe and the pipeline. Summary of the Invention

[0005] The present invention provides a bent pipe with strong adaptability, which solves the problems in the prior art that it is difficult for the bent pipe to adapt to different installation angles between two pipelines during the installation process, and that it is difficult for the bent pipe in the prior art to adapt to the impact of the fluid on different areas inside the bent pipe.

[0006] The technical solution of the present invention is as follows: A bent pipe with strong adaptability includes a bent transportation pipe section, and further includes: Two bent connection pipe sections. The bent connection pipe sections are used to communicate with the pipelines in the transportation system. Meshing ring sleeves are fixedly connected to both sides of the interface of the bent transportation pipe section. A rotating toothed ring is provided on the bent connection pipe section. The rotating toothed ring is rotatably arranged in the meshing ring sleeve to adjust the angle of the bent connection pipe section. The rotating toothed ring meshes with the meshing ring sleeve to fix the bent connection pipe section; A buffer member, which is slidably arranged in the bent conveying pipe section, and is used to slow down the flow velocity of the conveying fluid in the bent conveying pipe section; A flow dividing cylinder structure, an inlet for inserting the flow dividing cylinder structure is provided on the bent conveying pipe section, the flow dividing cylinder structure extends into the bent conveying pipe section and is used to discharge the conveying fluid flowing in the bent conveying pipe section. A bent return pipe section is communicated between two corresponding flow dividing cylinder structures for re-flowing the conveying fluid back into the bent conveying pipe section to slow down the impact force of the conveying fluid.

[0007] In order to fix the bent connecting pipe section, further, a plurality of meshing tooth grooves are provided on the inner wall of the meshing ring sleeve, and flexible meshing teeth are arranged on one side of the rotating tooth ring close to the meshing tooth grooves. The flexible meshing teeth extend into the meshing tooth grooves to fix the bent connecting pipe section.

[0008] In order to make the rotating tooth ring mesh with the meshing ring sleeve, further, a fixed sliding ring is fixedly connected to the inner wall of the meshing ring sleeve. Two annular slots are provided on the fixed sliding ring. A plurality of sliding blocks are fixedly connected to the inner arc surface of the rotating tooth ring. The sliding blocks are slidably arranged in one of the annular slots. A plurality of transposition slots are provided between the two annular slots. The sliding blocks enter from one annular slot into the other annular slot through the transposition slots.

[0009] In order to buffer the impact force of the conveying fluid, further, during the conveying process of the conveying fluid, it sequentially passes through the bent connecting pipe section on one side, the bent conveying pipe section and the bent return pipe section, and then flows back into the bent conveying pipe section and is discharged through the bent connecting pipe section on the other side.

[0010] In order to adjust the position of the buffer member in the bent conveying pipe section, further, an arc-shaped sliding rail is arranged in the bent conveying pipe section, and the buffer member is slidably arranged on the arc-shaped sliding rail.

[0011] In order to buffer the conveying fluid and adjust the area for buffering the conveying fluid in the bent conveying pipe section, further, a sloped flow-through groove body is provided in the buffer member. The slope of the sloped flow-through groove body corresponds to the bending curvature of the bent conveying pipe section. A tension groove is provided on the buffer member for moving the buffer member on the arc-shaped sliding rail.

[0012] In order to fix the flow dividing cylinder structure, further, an internally threaded cylinder body is communicated with the inlet for fixing the flow dividing cylinder structure.

[0013] In order to buffer the conveyed fluid, discharge the conveyed fluid, and fix the position of the buffer member, further, the shunt tube structure includes an external thread tube section and a cut-off plate body. The external thread tube section is threadedly connected to the inner wall of the internal thread cylinder body. The two sides of the external thread tube section are respectively communicated with a communication tube section and an insertion tube section. The insertion tube section extends into the bent conveying tube section. The communication tube section is communicated with the bent return tube section. Among them, a plurality of inclined water inlets are formed on one side of the insertion tube section, and flow discharge protrusions are formed on the inner wall of the inclined water inlets. A plurality of discharge through grooves are formed on the other side of the insertion tube section. The cut-off plate body is fixedly connected in the insertion tube section. The side of the cut-off plate body close to the inclined water inlets is a straight surface, and the side of the cut-off plate body close to the discharge through grooves is a slope surface, which is used for buffering the conveyed fluid.

[0014] In order to control whether the conveyed fluid is discharged through the insertion tube section, the external thread tube section and the communication tube section, further, a control valve is provided on the communication tube section, which is used to control whether the conveyed fluid is discharged through the insertion tube section, the external thread tube section and the communication tube section.

[0015] In order to fix the buffer member, further, an arc-shaped fixing groove is formed on the side of the buffer member opposite to the conveying fluid inlet direction. The insertion tube section contacts the arc-shaped fixing groove to fix the buffer member.

[0016] The working principle and beneficial effects of the present invention are as follows: 1. In the present invention, when it is necessary to use the bent conveying tube section to connect between two pipelines in the conveying system, in order to adapt to the difference in the installation angles between the two pipelines, by rotating the rotating tooth ring in the meshing ring sleeve, the connection angle of the bent connecting tube section is adjusted. After adjusting the angle of the bent connecting tube section, the rotating tooth ring and the meshing ring sleeve are kept meshing to make the connection positions between the bent connecting tube section and the pipelines of the conveying system correspond to each other. In addition, during the installation process, by making different installation angles between the two bent connecting tube sections and the bent conveying tube section, when the conveyed fluid flows between the bent connecting tube section and the bent conveying tube section, due to the difference in the conveying angle of the conveyed fluid by the bent connecting tube section, the conveyed fluid can better contact the inner wall of the bent conveying tube section, achieving a better buffering effect on the conveyed fluid.

[0017] 2. In the present invention, after adjusting the difference in the connection positions between the bent connecting tube section and the bent conveying tube section, at this time, the first stress area where the conveyed fluid enters the bent conveying tube section will also change. In order to buffer and decelerate the conveyed fluid immediately, the position of the buffer member in the bent conveying tube section can be adjusted so that the buffer member buffers the conveyed fluid immediately when the conveyed fluid enters the bent conveying tube section, achieving the effect of minimizing the flow rate of the conveyed fluid to the greatest extent.

[0018] 3. In the present invention, when the conveying pressure of the conveying fluid peak appears in the conveying system and is too high, part of the conveying fluid can flow into the bent return pipe section through the shunt cylinder structure after entering the bent conveying pipe section, and then re-flow back to the bent conveying pipe section through the shunt cylinder structure on the other side, so as to temporarily realize the shunt of the conveying fluid and relieve the internal pressure of the bent conveying pipe section when the conveying pressure of the conveying fluid is too high in a short time by using the bent return pipe section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0020] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a schematic structural diagram of a partial cross-section of the present invention; Figure 3 is a schematic structural diagram of a partial cross-section of the cooperation of the bent conveying pipe section, the bent connecting pipe section, the meshing ring sleeve and the rotating tooth ring in the present invention; Figure 4 For the present invention Figure 3 is a schematic structural diagram of a partial enlarged view at A in; Figure 5 is a schematic structural diagram of the cooperation of the buffer member, the slope-shaped flow channel body and the tension groove in the present invention; Figure 6 is a schematic plan view of a partial cross-section of the cooperation of the buffer member, the slope-shaped flow channel body, the tension groove and the arc-shaped fixing groove in the present invention; Figure 7 is a schematic structural diagram of the cooperation of the external thread cylinder section, the communication cylinder section, the insertion cylinder section and the discharge through groove in the present invention; Figure 8 is a schematic structural diagram of the cooperation of the external thread cylinder section, the communication cylinder section, the insertion cylinder section and the inclined water inlet in the present invention; Figure 9 is a schematic plan view of a partial cross-section of the cooperation of the external thread cylinder section, the communication cylinder section, the insertion cylinder section and the cut-off plate body in the present invention.

[0021] In the figure: 1. Bent conveying pipe section; 2. Bent connecting pipe section; 3. Meshing ring sleeve; 4. Rotating tooth ring; 5. Buffer member; 6. Bent return pipe section; 7. Meshing tooth groove; 8. Flexible meshing tooth; 9. Fixed sliding ring; 10. Annular slot; 11. Sliding block; 12. Transposition slot; 13. Arc-shaped slide rail; 14. Slope-shaped flow channel body; 15. Tension groove; 16. Internal thread cylinder body; 17. External thread cylinder section; 18. Communication cylinder section; 19. Insertion cylinder section; 20. Inclined water inlet; 21. Discharge projection; 22. Discharge through groove; 23. Cut-off plate body; 24. Control valve; 25. Arc-shaped fixing groove; 26. Connecting flange. Detailed implementation manners

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0023] Embodiment 1, as Figures 1 to 9 shown, this embodiment proposes a bend pipe with strong adaptability, including a bent conveying pipe section 1, and also including two bent connecting pipe sections 2. The bent connecting pipe sections 2 are used to communicate with the pipelines in the conveying system. Meshing ring sleeves 3 are fixedly connected to both sides of the interfaces of the bent conveying pipe section 1. A rotating toothed ring 4 is arranged on the bent connecting pipe section 2. The rotating toothed ring 4 is rotatably arranged in the meshing ring sleeve 3 to adjust the angle of the bent connecting pipe section 2. The rotating toothed ring 4 meshes with the meshing ring sleeve 3 to fix the bent connecting pipe section 2. When designing the pipelines in the fluid conveying system, it is necessary to judge which two pipelines the corresponding bent conveying pipe section 1 needs to communicate between. Therefore, according to the actual installation requirements, the bent connecting pipe section 2 and the rotating toothed ring 4 are rotated together on one side of the bent conveying pipe section 1 to adjust the rotation angle of the bent connecting pipe section 2 on one side of the bent conveying pipe section 1, so that the bent connecting pipe section 2 can be better connected to the pipelines in the conveying system; A plurality of meshing tooth grooves 7 are formed on the inner wall of the meshing ring sleeve 3. Flexible meshing teeth 8 are arranged on one side of the rotating toothed ring 4 close to the meshing tooth grooves 7. The flexible meshing teeth 8 extend into the meshing tooth grooves 7 to fix the bent connecting pipe section 2. After adjusting the position between the bent connecting pipe section 2 and the bent conveying pipe section 1, by moving the bent connecting pipe section 2 and the rotating toothed ring 4 together towards the bent conveying pipe section 1 and the meshing ring sleeve 3, the volume of the flexible meshing teeth 8 is slightly larger than the inner diameter of the meshing tooth grooves 7. Therefore, after the flexible meshing teeth 8 enter the meshing tooth grooves 7, a large frictional force will be generated between the flexible meshing teeth 8 and the inner wall of the meshing tooth grooves 7, so that the rotating toothed ring 4 and the meshing ring sleeve 3 are kept fixed. During the actual operation of the above steps, the operator can use a hammer or other metal tools for knocking to knock the rotating toothed ring 4 towards the meshing ring sleeve 3 to facilitate the smooth entry of the flexible meshing teeth 8 into the meshing tooth grooves 7; A fixed slip ring 9 is fixedly connected to the inner wall of the meshing ring sleeve 3. Two annular slots 10 are formed in the fixed slip ring 9. A plurality of sliding blocks 11 are fixedly connected to the inner arc surface of the rotating toothed ring 4. The sliding blocks 11 are slidably arranged in one of the annular slots 10. A plurality of transposition slots 12 are formed between the two annular slots 10. The sliding blocks 11 enter from one annular slot 10 into the other annular slot 10 through the transposition slots 12. When adjusting the angle of the bent connecting pipe section 2, the rotating toothed ring 4 rotates in the annular slot 10 on the side of the meshing ring sleeve 3 that is farther away from the bent conveying pipe section 1 through the sliding blocks 11. Then, after adjusting the position of the bent connecting pipe section 2, the positions of the sliding blocks 11 and the transposition slots 12 are made to correspond. Then, when the bent connecting pipe section 2 is moved towards the bent conveying pipe section 1 during the knocking process, the sliding blocks 11 pass through the transposition slots 12 and move into the other annular slot 10. The position of the transposition slot 12 corresponds to the position of the meshing tooth slot 7. When the rotating toothed ring 4 moves towards the meshing tooth slot 7, the flexible meshing teeth 8 can directly enter into the meshing tooth slot 7, avoiding the problem of angular deviation of the bent connecting pipe section 2 during the knocking process. In addition, the inner wall size of the transposition slot 12 corresponds to the size of the sliding block 11. During the rotation of the rotating toothed ring 4 and the plurality of sliding blocks 11, since the size between the sliding block 11 and the transposition slot 12 is too close, the sliding block 11 will not easily enter into the transposition slot 12. The annular slot 10 farther away from the bent conveying pipe section 1 is used to enable the sliding block 11, the connecting toothed ring, and the bent connecting pipe section 2 to smoothly adjust the angle. The other annular slot 10 is used for the sliding block 11 to closely fit with the transposition slot 12 during the movement of the sliding block 11 in the transposition slot 12, so a certain frictional force is generated between the sliding block 11 and the transposition slot 12. This annular slot 10 can serve as the hollow area between the transposition slot 12 and the meshing tooth slot 7, alleviating the friction during the lateral movement of the bent connecting pipe section 2 when the sliding block 11 enters into this annular slot 10 during the movement process and the flexible meshing teeth 8 have initially entered into the meshing tooth slot 7, facilitating the more smooth fixation of the bent connecting pipe section 2 with the bent conveying pipe section 1.

[0024] To improve the firmness of the connection between the bent connecting pipe section 2 and the bent conveying pipe section 1, connection flanges 26 are provided on both the bent connecting pipe section 2 and the bent conveying pipe section 1. After the positions of the bent connecting pipe section 2 and the bent conveying pipe section 1 are fixed, fasteners are used to connect the two connection flanges 26 to completely fix the positions of the bent connecting pipe section 2 and the bent conveying pipe section 1.

[0025] It should be further noted that the shape and size of the bent connecting pipe section 2 will be actually adjusted according to the layout of the pipeline in the conveying system. No matter what the shape of the bent connecting pipe section 2 is, the connection relationship between the bent connecting pipe section 2 and the bent conveying pipe section 1 is determined by the cooperation relationship of components such as the rotating toothed ring 4 and the meshing ring sleeve 3. During the design process of the conveying system, the sizes of the bent connecting pipe section 2 and the bent conveying pipe section 1 have been determined. Therefore, during the actual production of the bent connecting pipe section 2 and the bent conveying pipe section 1, the shape and size of the bent connecting pipe section 2 have been determined.

[0026] The buffer member 5 is slidably arranged in the bent conveying pipe section 1. The buffer member 5 is used to slow down the flow velocity of the conveying fluid in the bent conveying pipe section 1. An arc-shaped slide rail 13 is arranged in the bent conveying pipe section 1, and the buffer member 5 is slidably arranged on the arc-shaped slide rail 13. Due to the difference in the shape of the bent connecting pipe section 2 and the difference in the installation angle of the bent conveying pipe section 1, it is easy to have a change in the first stress area after the conveying fluid enters the bent conveying pipe section 1. Therefore, the position of the buffer member 5 in the bent conveying pipe section 1 can be adjusted to move the buffer member 5 into the first stress area. After the conveying fluid enters the bent conveying pipe section 1, timely buffering and speed reduction operations are performed on the conveying fluid. By arranging the arc-shaped slide rail 13, the buffer member 5 can move according to the bending curvature inside the bent conveying pipe section 1, which is convenient for adjusting the position of the buffer member 5. A sloped flow-through groove body 14 is formed in the buffer member 5. The slope of the sloped flow-through groove body 14 corresponds to the bending curvature of the bent conveying pipe section 1. A tension groove 15 for moving the buffer member 5 on the arc-shaped slide rail 13 is formed in the buffer member 5. After the buffer member 5 is moved to the designated position, after the conveying fluid enters the bent conveying pipe section 1 and contacts the buffer member 5, the conveying fluid will enter the sloped flow-through groove body 14. After the conveying fluid contacts the slope of the sloped flow-through groove body 14, sufficient buffering and speed reduction of the conveying fluid are achieved. When the buffer member 5 is moved in the bent conveying pipe section 1, by forming the tension groove 15, the buffer member 5 can be slightly deformed during the movement due to the tension groove 15, reducing the friction between the buffer member 5 and the arc-shaped slide rail 13, and avoiding excessive interference friction between the buffer member 5 and the arc-shaped slide rail 13, which affects the normal movement of the buffer member 5 in the bent conveying pipe section 1.

[0027] An inlet for inserting the shunt cylinder structure is formed on the bent conveying pipe section 1. An internal thread cylinder body 16 is communicated with the inlet for fixing the shunt cylinder structure. The insertion cylinder section 19 can be moved into the bent conveying pipe section 1 through the inlet. Through the threaded connection relationship between the external thread cylinder section 17 and the internal thread cylinder body 16, structures such as the insertion cylinder section 19 can be fixed. The unused internal thread cylinder body 16 can be sealed with a screw plug or a threaded cap to avoid leakage of the conveying fluid.

[0028] The flow dividing cylinder structure extends into the bent conveying pipe section 1 for discharging the conveying fluid flowing in the bent conveying pipe section 1. A bent return pipe section 6 is connected between two corresponding flow dividing cylinder structures for re-circulating the conveying fluid back into the bent conveying pipe section 1 to reduce the impact force of the conveying fluid. During the conveying process of the conveying fluid, it sequentially passes through the bent connecting pipe section 2 on one side, the bent conveying pipe section 1, and the bent return pipe section 6, and then re-circulates into the bent conveying pipe section 1 and is discharged through the bent connecting pipe section 2 on the other side. When the conveying pressure of the conveying fluid peak appears in the conveying system and is too high, part of the conveying fluid can flow into the bent return pipe section 6 through the flow dividing cylinder structure after entering the bent conveying pipe section 1, and then re-circulate into the bent conveying pipe section 1 through the flow dividing cylinder structure on the other side, so as to temporarily achieve the diversion of the conveying fluid by using the bent return pipe section 6 when the conveying pressure of the conveying fluid is too high in a short time and relieve the internal pressure of the bent conveying pipe section 1.

[0029] The flow dividing cylinder structure includes an external thread cylinder section 17 and a cut-off plate body 23. The external thread cylinder section 17 is threadedly connected to the inner wall of the internal thread cylinder body 16. The two sides of the external thread cylinder section 17 are respectively connected to a connecting cylinder section 18 and an insertion cylinder section 19. The insertion cylinder section 19 extends into the bent conveying pipe section 1, and the connecting cylinder section 18 is connected to the bent return pipe section 6. Among them, a plurality of inclined water inlets 20 are opened on one side of the insertion cylinder section 19, and flow discharge protrusions 21 are arranged on the inner wall of the inclined water inlets 20. A plurality of discharge through grooves 22 are opened on the other side of the insertion cylinder section 19. The cut-off plate body 23 is fixedly connected in the insertion cylinder section 19. The side of the cut-off plate body 23 close to the inclined water inlet 20 is a straight surface, and the side of the cut-off plate body 23 close to the discharge through grooves 22 is a slope surface for buffering the conveying fluid. When it is necessary to discharge the conveying fluid conveyed in the bent conveying pipe section 1 into the bent return pipe section 6, after the conveying fluid enters the bent conveying pipe section 1 and passes through the slope-shaped flow through groove body, during the continuous conveying process of the conveying fluid, the conveying fluid can enter the inside of the insertion cylinder section 19 through the inclined water inlets 20, and the flow discharge protrusions 21 arranged on the inclined water inlets 20 can be used for a certain diversion effect on the entry of the conveying fluid to reduce the impact force of the conveying fluid entering the insertion cylinder section 19. The conveying fluid is buffered by the straight surface side of the cut-off plate body 23, and the conveying fluid can be discharged into the bent return pipe section 6 through the insertion cylinder section 19, the external thread cylinder section 17, and the connecting cylinder section 18 in sequence, and finally re-circulate into the bent conveying pipe section 1 through the connecting cylinder section 18, the external thread cylinder section 17, and the insertion cylinder section 19 on the other side; When it is not necessary to divert the conveyed fluid, after the conveyed fluid flows through the slope-shaped flow channel body, the conveyed fluid enters the inside of the insertion cylinder section 19 through the inclined water inlet 20. The conveyed fluid will also continue to flow along the outer wall of the insertion cylinder section 19 on both sides of the insertion cylinder section 19, realizing the buffering and speed reduction operation of the conveyed fluid. The conveyed fluid entering the insertion cylinder section 19, after being buffered on the straight side of the cut-off plate body 23 and drained on the slope side, enables the conveyed fluid to continue to be discharged through the discharge through groove 22, realizing the buffering operation of the conveyed fluid; A control valve 24 is provided on the communication cylinder section 18 for controlling whether the conveyed fluid is discharged through the insertion cylinder section 19, the external thread cylinder section 17, and the communication cylinder section 18. The opening and closing of the communication cylinder section 18 are controlled by the control valve 24 to realize whether the conveyed fluid flows into the bent return pipe section 6.

[0030] An arc-shaped fixing groove 25 is formed on one side of the buffer member 5 opposite to the direction of the conveyed fluid entry. The insertion cylinder section 19 contacts the arc-shaped fixing groove 25 to fix the buffer member 5. After moving the buffer member 5 to a specified position in the bent conveying pipe section 1, the insertion cylinder section 19 is moved to the side where the buffer member 5 discharges the conveyed fluid, so that the insertion cylinder section 19 contacts the inner wall of the arc-shaped fixing groove 25, preventing the buffer member 5 from shifting under the conveying impact force of the conveyed fluid.

[0031] Embodiment 2. In addition, when it is necessary to buffer the fluid during the fluid conveying process using the bent conveying pipe section 1, it is also necessary to cope with the sudden pressure difference change in the conveying system. When the fluid suddenly accelerates due to the pressure change in the bent conveying pipe section 1, since the fluid has been conveyed into the bent conveying pipe section 1, when the fluid accelerates after adapting to the bending curvature of the bent conveying pipe section 1, the buffering performance of the bent conveying pipe section 1 for the fluid will be greatly reduced, affecting the protection of various devices in the conveying system by the bent conveying pipe section 1. To solve this problem, by judging the output power of various conveying devices in the conveying system, the occurrence event and occurrence area of the rapid flow phenomenon of the conveyed fluid are predicted. For the bent conveying pipe section 1 in this area, to solve the above problem, the position of the buffer member 5 in the bent conveying pipe section 1 can be adjusted, and the buffer member 5 can be moved to a position farther from the water inlet end of the bent conveying pipe section 1. The position of the buffer member 5 can also be fixed using the insertion cylinder section 19. When the conveyed fluid has a rapid flow in the bent conveying pipe section 1, the buffer member 5 can also be used for effective protection.

[0032] The installation method of the elbow with strong adaptability: First, adjust the position of the buffer member 5 according to the first stress area where the conveyed fluid enters the curved conveying pipe section 1. After moving the buffer member 5 to the designated position in the curved conveying pipe section 1, insert the insertion cylinder section 19 into the curved conveying pipe section 1 through the corresponding inlet, and make the arc-shaped fixing groove 25 of the buffer member 5 contact the insertion cylinder section 19 to fix the position of the buffer member 5. Then, connect the communication cylinder section 18 and the curved return pipe section 6 by welding, so that the conveyed fluid in the curved conveying pipe section 1 can enter the curved return pipe section 6 and then flow back into the curved conveying pipe section 1; Then, according to the positional relationship between the two pipelines connected by the curved conveying pipe section 1 as needed, adjust the angles of the curved connecting pipe section 2 on both sides of the curved conveying pipe section 1. Rotate the toothed ring 4 to rotate in the annular slot 10 on the side farther from the curved conveying pipe section 1 in the meshing ring sleeve 3 through the sliding block 11. Then, after adjusting the position of the curved connecting pipe section 2, make the position of the sliding block 11 correspond to the transposition slot 12. Then, when moving the curved connecting pipe section 2 towards the curved conveying pipe section 1 during the knocking process, make the sliding block 11 move through the transposition slot 12 and into another annular slot 10. During the movement of the toothed ring 4 towards the meshing tooth groove 7, the flexible meshing teeth 8 can directly enter the meshing tooth groove 7 to keep the curved conveying pipe section 1 and the curved connecting pipe section 2 fixed. Then, fasten the connecting flange 26 with fasteners to fix the curved conveying pipe section 1 and the curved connecting pipe section 2; Finally, make the curved conveying pipe section 1 normally convey the fluid.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adaptable elbow pipe, comprising a bent conveying pipe section (1), characterized in that, It further includes: Two curved connecting pipe segments (2) are provided. The curved connecting pipe segments (2) are used to communicate with the pipelines in the conveying system. Meshing ring sleeves (3) are fixedly connected to both sides of the curved conveying pipe segment (1). A rotating toothed ring (4) is arranged on the curved connecting pipe segment (2). The rotating toothed ring (4) is rotatably arranged in the meshing ring sleeve (3) to adjust the angle of the curved connecting pipe segment (2). The rotating toothed ring (4) meshes with the meshing ring sleeve (3) to fix the curved connecting pipe segment (2); A buffer member (5) is slidably arranged in the curved conveying pipe segment (1). The buffer member (5) is used to slow down the flow rate of the conveyed fluid in the curved conveying pipe segment (1); A flow dividing cylinder structure. An inlet for inserting the flow dividing cylinder structure is opened on the curved conveying pipe segment (1). The flow dividing cylinder structure extends into the curved conveying pipe segment (1) to discharge the conveyed fluid flowing in the curved conveying pipe segment (1). A curved return pipe segment (6) is communicated between two corresponding flow dividing cylinder structures to re-return the conveyed fluid to the curved conveying pipe segment (1) to slow down the impact force of the conveyed fluid.

2. The adaptable elbow pipe according to claim 1, characterized in that, A plurality of meshing tooth grooves (7) are opened on the inner wall of the meshing ring sleeve (3). Flexible meshing teeth (8) are arranged on one side of the rotating toothed ring (4) close to the meshing tooth grooves (7). The flexible meshing teeth (8) extend into the meshing tooth grooves (7) to fix the curved connecting pipe segment (2).

3. The adaptable elbow pipe according to claim 2, characterized in that, A fixed sliding ring (9) is fixedly connected to the inner wall of the meshing ring sleeve (3). Two annular slots (10) are opened on the fixed sliding ring (9). A plurality of sliding blocks (11) are fixedly connected to the inner arc surface of the rotating toothed ring (4). The sliding blocks (11) are slidably arranged in one of the annular slots (10). A plurality of transposition slots (12) are opened between the two annular slots (10). The sliding blocks (11) enter from one annular slot (10) into the other annular slot (10) through the transposition slots (12).

4. A bend pipe with strong adaptability according to claim 1, characterized in that, During the conveying process of the conveyed fluid, it sequentially passes through one side of the curved connecting pipe segment (2), the curved conveying pipe segment (1) and the curved return pipe segment (6), and then returns to the curved conveying pipe segment (1) and is discharged through the curved connecting pipe segment (2) on the other side.

5. A bend pipe with strong adaptability according to claim 1, characterized in that, An arc-shaped slide rail (13) is arranged in the curved conveying pipe segment (1). The buffer member (5) is slidably arranged on the arc-shaped slide rail (13).

6. The adaptable elbow pipe according to claim 5, wherein A sloped flow-through groove body (14) is opened in the buffer member (5). The slope of the sloped flow-through groove body (14) corresponds to the bending curvature of the curved conveying pipe segment (1). A tension groove (15) for moving the buffer member (5) on the arc-shaped slide rail (13) is opened on the buffer member (5).

7. The adaptable elbow pipe according to claim 1, characterized in that, An internally threaded cylinder body (16) is communicated with the inlet for fixing the flow dividing cylinder structure.

8. The adaptable elbow pipe according to claim 7, wherein, The flow dividing cylinder structure includes: An external thread cylinder section (17), the external thread cylinder section (17) is threadedly connected to the inner wall of the internal thread cylinder body (16). On both sides of the external thread cylinder section (17), a communicating cylinder section (18) and an insertion cylinder section (19) are respectively communicated. The insertion cylinder section (19) extends into the curved conveying pipe section (1), and the communicating cylinder section (18) is communicated with the curved return pipe section (6); Among them, on one side of the insertion cylinder section (19), a plurality of inclined water inlets (20) are provided. On the inner wall of the inclined water inlets (20), a flow discharge protrusion (21) is provided. On the other side of the insertion cylinder section (19), a plurality of discharge through grooves (22) are provided; A cut-off plate body (23), the cut-off plate body (23) is fixedly connected in the insertion cylinder section (19). The side of the cut-off plate body (23) close to the inclined water inlets (20) is set as a straight surface, and the side of the cut-off plate body (23) close to the discharge through grooves (22) is set as a slope surface for buffering the conveying fluid.

9. The adaptable elbow pipe according to claim 8, characterized in that, A control valve (24) is provided on the communicating cylinder section (18) for controlling whether the conveying fluid is discharged through the insertion cylinder section (19), the external thread cylinder section (17) and the communicating cylinder section (18).

10. The adaptable elbow pipe according to claim 9, wherein On the side of the buffer member (5) opposite to the direction of the conveying fluid entering, an arc-shaped fixing groove (25) is provided. The insertion cylinder section (19) contacts the arc-shaped fixing groove (25) to fix the buffer member (5).

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