A shock pipe support for a petroleum transport pipeline

Abstract

The application discloses a kind of petroleum conveying pipeline shock-absorbing pipe support, belong to pipeline conveying technical field, including oil pipeline, fixed frame one, liquid supply tank, fixed frame two and detection ring, the outside wall of oil pipeline is provided with fixed ring, the inside of fixed frame one is provided with the supporting block that is matched with fixed ring, spring is arranged between supporting block and the inside wall of fixed frame one.The application, when low-amplitude buffering, the spring between buffering block and damping rod and fixed ring is realized to the buffering of vibration, and the difference between the sectional area of liquid chamber one and liquid chamber two is captured, amplified and recycled to vibration force, through vibration, the inside of hydraulic tank one is pumped liquid storage, and when the bending section of oil pipeline is impacted to cause amplitude to become larger, the force storage is converted into the reaction thrust in the direction of fixed ring, the resonance effect of oil pipeline is inhibited, different damping stress is provided at different amplitude, the stability of the bending section of oil pipeline is significantly improved when flowing.

Description

Technical Field

[0001] This invention relates to the field of pipeline transportation technology, and more specifically, to a shock-absorbing pipe support for an oil transportation pipeline. Background Technology

[0002] Oil pipelines are a critical infrastructure used for long-distance transportation of crude oil, refined oil, and natural gas. They consist of pipelines, pumping stations, valves, and control systems, and are characterized by high efficiency, safety, and environmental friendliness. They are one of the core modes of modern energy transportation.

[0003] During the transportation of oil and natural gas as fluids, pipeline vibrations are easily caused by intermittent impacts of liquid plugs on the pipe wall during gas-liquid mixing, resulting in transient forces that cause slug flow; micro-jet flow caused by the rupture of bubbles in local low-pressure areas; and turbulence, eddy-induced vibrations, or water hammer effects generated during transportation. These factors accelerate pipeline damage, thus requiring vibration damping treatment. Existing technologies mainly use springs or other damping mechanisms to dampen the pipeline perimeter. However, for curved sections of the pipeline, the fluid experiences greater impact due to shock and centrifugal force, leading to larger vibration amplitudes in the curved sections. Traditional straight pipeline buffers, due to their fixed buffering and damping effects, are prone to failing to provide sufficient support and damping when the amplitude is large, resulting in exacerbated damage to the curved sections of the pipeline.

[0004] How to invent a shock-absorbing pipe support for oil pipelines to improve these problems has become an urgent issue for those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a shock-absorbing pipe support for oil transportation pipelines, which aims to improve the problems mentioned in the background art.

[0006] This invention is implemented as follows:

[0007] This invention provides a shock-absorbing pipe support for an oil transportation pipeline, comprising an oil pipeline, a first fixing frame, a liquid supply tank, a second fixing frame, and a detection ring. A fixing ring is provided on the outer wall of the oil pipeline. A support block that mates with the fixing ring is provided on the inner side of the first fixing frame. A spring is provided between the support block and the inner wall of the first fixing frame. A buffer block is movably sleeved on the side wall of the first fixing frame. A buffer rod and a vibration damping rod are movably sleeved inside the buffer block. The buffer rod is fixedly connected to the fixing ring. A spring is provided between the buffer block and the fixing ring. The vibration damping rod is connected to the fixing ring via the spring. A liquid passage pipe communicating with the end of the vibration damping rod is opened inside the buffer block. A return pipe is provided inside the first fixing frame. The buffer block has an opening... It has three hydraulic chambers: hydraulic chamber one, hydraulic chamber two, and hydraulic chamber three. A piston is provided at the end of the buffer rod and is connected to the hydraulic chamber. A piston rod is provided inside the buffer block. The piston rod has pistons at both ends that are connected to the inner side walls of hydraulic chamber two and hydraulic chamber three, respectively. A hydraulic tank one is fixedly installed on the side wall of the fixed frame one. An inlet pipe is connected between hydraulic chamber three and the supply tank. Hydraulic chamber three is connected to supply pipe two. The other end of supply pipe two is connected to the inside of hydraulic tank one. A hydraulic block one is connected inside hydraulic tank one. A spring is provided between hydraulic block one and hydraulic tank one. A supply pipe one connected to the hydraulic circuit pipe is provided at the bottom of hydraulic block one. A pumping mechanism and a accumulator mechanism are also provided inside the buffer block.

[0008] Preferably, the cross-sectional area of ​​the first hydraulic cavity is larger than that of the second hydraulic cavity, and the cross-sectional area of ​​the third hydraulic cavity is larger than that of the second hydraulic cavity.

[0009] Preferably, the piston rod is designed as a smooth rod with pistons at both ends and a smooth rod in the middle. The smooth rod in the middle is provided with a connecting groove that mates with the liquid passage pipe and the liquid supply pipe. The connecting groove has a cross-shaped design along the radial section of the piston rod.

[0010] Preferably, a return pipe 2 is provided on the side wall of hydraulic tank 1, one end of the return pipe 2 is connected to the interior of hydraulic tank 1, and the other end of the return pipe 2 is connected to the liquid supply tank.

[0011] Preferably, the pump mechanism includes a drain pipe disposed inside the buffer block and communicating with the hydraulic chamber three. The piston rod extends to one end inside the hydraulic chamber three and is connected to a piston cylinder by a spring. There is a cavity between the piston cylinder and the piston rod located inside the hydraulic chamber three. The liquid supply pipe two is designed to be close to the side of the oil supply pipe, and the drain pipe is designed to be located inside the hydraulic chamber three on the side away from the oil supply pipe.

[0012] Preferably, the power storage mechanism includes a hydraulic tank two fixedly installed on one side wall of the fixed frame. A hydraulic block two is sleeved inside the hydraulic tank two. A spring is provided between the hydraulic block two and the hydraulic tank two. One end of the drain pipe is connected to the hydraulic chamber three, and the other end of the drain pipe is connected to the hydraulic tank two. A valve block one and a valve block two are sleeved on the inner side wall of the hydraulic tank two. The side wall of the valve block one is provided with two sets of protrusions extending into the interior of the hydraulic tank two. The interior of the valve block two is provided with a set of protrusions extending into the interior of the hydraulic tank two. The valve block one has a sliding groove that matches the protrusion of the valve block two. A spring is provided between the bottom of the valve block two and the hydraulic tank two. A drain hole is provided on the side wall of the hydraulic tank two. A connecting hole that matches the drain hole is provided on the side wall of the valve block one. A supply pipe three and a supply pipe four are provided on the side wall of the valve block two. The other end of the supply pipe three is connected to the supply pipe two. A transmission assembly is provided on the side wall of the fixed frame two.

[0013] Preferably, the top and bottom of valve block one are designed with magnets, the interior of hydraulic tank two is provided with magnetic poles that cooperate with and attract valve block one, and the interior of hydraulic tank two is provided with a switch assembly that cooperates with the protrusion of valve block one.

[0014] Preferably, the transmission assembly includes a drive block disposed on the two side walls of the fixed frame. The drive block has a set of circular cavities inside. A drive shaft is rotatably connected to the center of the circular cavity. The outer side wall of the drive shaft is provided with a set of blades that fit against the inner side wall of the circular cavity. One side of the circular cavity is connected to the liquid supply pipe 4. The side of the circular cavity away from the liquid supply pipe 4 is connected to a return channel. The other end of the return channel is connected to the liquid supply tank. The part of the drive shaft extending to the outside of the drive block is connected to a winding shaft. A connecting rope is wound around the outer side wall of the winding shaft. The other end of the connecting rope is connected to the detection ring.

[0015] Preferably, the inner wall of the detection ring is provided with rollers that are adapted to the outer wall of the oil pipeline, and a spring is provided between the detection ring and the second fixing frame.

[0016] In summary, the beneficial effects of this invention are:

[0017] 1. It achieves the decomposition and buffering of impacts from various angles through the support block and buffer block. During low-amplitude buffering, the spring between the buffer block and the damping rod and the fixed ring achieves the buffering of vibration. Furthermore, the difference in cross-sectional area between hydraulic chamber one and hydraulic chamber two captures, amplifies, and recovers the vibration force. The vibration stores pump fluid inside hydraulic tank one. When the amplitude increases due to impact on the curved section of the oil pipeline, the movement of the piston rod and its connection with the hydraulic circuit pipe and the first supply pipe convert the stored force into a reaction thrust towards the fixed ring. This achieves the buffering and recovery of vibration force at low amplitude and the conversion of stored force into stress to resist vibration when the vibration intensifies, suppressing the resonance effect of the oil pipeline, providing a limiting force on the amplitude, and providing different damping stresses at different amplitudes, which can significantly improve the stability of the oil pipeline when flowing through curved sections.

[0018] 2. Through the elastic design of the piston rod and piston cylinder, the hydraulic tank 2 will only be pumped with fluid when a certain amplitude is reached. When the fluid in the hydraulic tank 2 reaches its limit, that is, when the oil pipe bend is subjected to a large amplitude vibration to a specified distance, the hydraulic tank 1 is first replenished with pressurized fluid through the cooperation of valve block 1 and valve block 2 to provide shock absorption force. When the amplitude decreases, valve block 2 will reset and change the connection state to supply fluid to the drive block. This drives the winding shaft to wind up and move the detection ring along the impact section of the outer wall of the oil pipe for detection. No manual periodic inspection is required. It realizes periodic automatic detection based on the total impact amplitude. Moreover, the detection automatically judges the degree of fluid mildness before detection, avoiding the influence of turbulent fluid on the detection results and improving the accuracy of detection. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an overall schematic diagram provided by an embodiment of the present invention.

[0021] Figure 2 This is an overall top view diagram provided by an embodiment of the present invention.

[0022] Figure 3 This is an overall schematic diagram of the fixing frame provided in an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the interior of the buffer block provided in an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the interior of a hydraulic tank provided in an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the piston rod disassembly provided in an embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of liquid flow provided by an embodiment of the present invention.

[0027] Figure 8 This is a schematic diagram of the interior of the hydraulic tank II provided in an embodiment of the present invention.

[0028] Figure 9 This is a schematic diagram showing the internal disassembly of the hydraulic tank 2 provided in an embodiment of the present invention.

[0029] Figure 10This is a schematic diagram of the hydraulic block two located at the lowest point according to an embodiment of the present invention.

[0030] Figure 11 This is a schematic diagram of the internal structure of the driver block provided in an embodiment of the present invention.

[0031] Figure 12 This is a schematic diagram of the inner side of the detection ring provided in an embodiment of the present invention.

[0032] Legend:

[0033] 100. Oil supply pipe; 101. Fixing ring; 200. Fixing bracket one; 201. Support block; 202. Buffer block; 203. Buffer rod; 204. Hydraulic chamber one; 205. Hydraulic chamber two; 206. Piston rod; 207. Hydraulic chamber three; 208. Vibration damping rod; 209. Hydraulic pipe; 210. Supply pipe one; 211. Inlet pipe; 212. Supply pipe two; 213. Drain pipe; 214. Piston cylinder; 215. Connecting groove; 216. Return pipe one; 300. Supply tank; 4 00. Hydraulic tank one; 401. Hydraulic block one; 402. Return pipe two; 500. Hydraulic tank two; 501. Supply pipe three; 503. Supply pipe four; 504. Hydraulic block two; 505. Valve block one; 506. Valve block two; 507. Connecting hole; 508. Drain hole; 509. Switch assembly; 600. Drive block; 601. Drive shaft; 602. Blade assembly; 603. Rewinding shaft; 604. Connecting rope; 605. Return channel; 700. Detection ring; 800. Fixing frame two. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figure 1-12This invention provides a shock-absorbing pipe support for an oil pipeline, comprising an oil pipeline 100, a first fixing frame 200, a supply tank 300, a second fixing frame 800, and a detection ring 700. A fixing ring 101 is provided on the outer wall of the oil pipeline 100. A support block 201 cooperating with the fixing ring 101 is provided on the inner side of the first fixing frame 200. A spring is provided between the support block 201 and the inner wall of the first fixing frame 200. A buffer block 202 that can slide vertically is movably sleeved on the side wall of the first fixing frame 200. A buffer rod 203 and a damping rod 208 are movably sleeved inside the buffer block 202. The buffer rod 203 is fixedly connected to the fixing ring 101. A spring is provided between the buffer block 202 and the fixing ring 101. The damping rod 208 is connected to the fixing ring 101 via the spring. Next, the buffer block 202 has a liquid passage pipe 209 inside, which communicates with the end of the damping rod 208. The fixing bracket 200 has a return pipe 216 inside. One end of the return pipe 216 is located between the damping rod 208 and the liquid passage pipe 209, and the other end of the return pipe 216 is connected to the supply tank 300. It should be noted that when the damping rod 208 slowly resets after the loss of pressurized liquid supply, the pressurized liquid can be discharged and returned to the supply tank 300 through the return pipe 216. Moreover, the diameter of the return pipe 216 is smaller than the diameter of the liquid passage pipe 209 to avoid the reset speed being too fast and affecting the force on the damping rod 208. It should also be noted that the end of the damping rod 208 extending into the buffer block 202 is designed as a piston. When not affected by external factors, the damping rod 208... 08 is in contact with and limited by the buffer block 202, preventing the damping rod 208 from moving into the buffer block 202. The buffer block 202 supports the damping rod 208, and the spring between the damping rod 208 and the fixed ring 101 further supports and buffers the fixed ring 101 and the oil pipe 100. The pressurized liquid flowing in from the hydraulic pipe 209 can push the damping rod 208 towards the fixed ring 101, providing a greater reaction force. The buffer block 202 has three hydraulic chambers: hydraulic chamber one 204, hydraulic chamber two 205, and hydraulic chamber three 207. The end of the buffer rod 203 is provided with a piston that fits into hydraulic chamber one 204. The buffer block 202 has a piston rod 206 inside, and the two ends of the piston rod 206 are respectively provided with hydraulic chamber two 205 and hydraulic chamber three. A piston is sleeved on the inner wall of 207. A hydraulic tank 400 is fixedly installed on the side wall of the fixing bracket 200. An inlet pipe 211 is connected between the hydraulic cavity 3 207 and the supply tank 300. A supply pipe 212 is connected to the hydraulic cavity 3 207. The other end of the supply pipe 212 is connected to the inside of the hydraulic tank 400. A hydraulic block 401 is sleeved inside the hydraulic tank 400. A spring is provided between the hydraulic block 401 and the hydraulic tank 400. A supply pipe 210 connected to the hydraulic passage pipe 209 is provided at the bottom of the hydraulic block 401. It should be noted that hydraulic oil for transmission is provided between the hydraulic cavity 1 204 and the hydraulic cavity 2 205 and inside the supply tank 300. A pumping mechanism and a accumulator mechanism are also provided inside the buffer block 202.

[0036] Furthermore, the cross-sectional area of ​​hydraulic cavity one 204 is larger than that of hydraulic cavity two 205, and the cross-sectional area of ​​hydraulic cavity three 207 is larger than that of hydraulic cavity two 205. It should be noted that the cross-sectional area refers to the flow cross-sectional area of ​​the cavity. When the piston at the end of the buffer rod 203 moves inside hydraulic cavity one 204, because the cross-sectional area of ​​hydraulic cavity one 204 is larger than that of hydraulic cavity two 205, under the action of the connected hydraulic transmission, the amount of hydraulic oil pumped into hydraulic cavity two 205 by the buffer rod 203 through a small displacement drives the piston rod 206 to move a larger distance inside hydraulic cavity two 205, thereby amplifying the vibration amplitude of the oil pipeline 100 and improving the stability and reliability of the device operation.

[0037] Reference Figure 6 The piston rod 206 is designed with pistons at both ends and a smooth rod in the middle. The smooth rod in the middle of the piston rod 206 has a connecting groove 215 that cooperates with the liquid passage pipe 209 and the first liquid supply pipe 210. The connecting groove 215 has a cross-shaped cross section along the radial direction of the piston rod 206. It should be noted that the cross sections of the second hydraulic cavity 205 and the third hydraulic cavity 207 are both elliptical to prevent the piston rod 206 from rotating during movement.

[0038] It should be noted that a return pipe 402 is provided on the side wall of the hydraulic tank 400. One end of the return pipe 402 is connected to the inside of the hydraulic tank 400, and the other end of the return pipe 402 is connected to the supply tank 300.

[0039] Reference Figure 4-8 The pump mechanism includes a drain pipe 213 located inside the buffer block 202 and communicating with the hydraulic cavity 207. The piston rod 206 extends to one end inside the hydraulic cavity 207, and the piston is connected to the piston cylinder 214 by a spring. There is a cavity between the piston cylinder 214 and the piston rod 206 inside the hydraulic cavity 207. The piston cylinder 214 and the piston rod 206 inside the hydraulic cavity 207 divide the interior of the hydraulic cavity 207 into two sets of non-communicating cavities. The design position of the supply pipe 212 is close to the side of the oil pipeline 100, and the design position of the drain pipe 213 is located inside the hydraulic cavity 207 on the side away from the oil pipeline 100.

[0040] Furthermore, the power storage mechanism includes a hydraulic tank 500 fixedly installed on the side wall of the fixed frame 200. A hydraulic block 504 is sleeved inside the hydraulic tank 500, and a spring is provided between the hydraulic block 504 and the hydraulic tank 500. One end of the drain pipe 213 is connected to the hydraulic chamber 207, and the other end of the drain pipe 213 is connected to the hydraulic tank 500. A valve block 505 and a valve block 506 are sleeved on the inner side wall of the hydraulic tank 500. Two sets of protrusions extending into the interior of the hydraulic tank 500 are provided on the side wall of the valve block 505, and a set of protrusions extending into the interior of the hydraulic tank 500 is provided inside the valve block 506. The valve block 505 has a protrusion and a groove that matches the protrusion of the valve block 506. A spring is provided between the bottom of the valve block 506 and the hydraulic tank 500. The side wall of the hydraulic tank 500 has a drain hole 508. The side wall of the valve block 505 has a connecting hole 507 that matches the drain hole 508. The side wall of the valve block 506 has a supply pipe 3 501 and a supply pipe 4 503. The other end of the supply pipe 3 501 is connected to the supply pipe 2 212. The side wall of the fixing frame 2 800 has a transmission assembly. The supply pipe 3 501 and the supply pipe 4 503 extend to the outside of the hydraulic tank 2 500 through a hose.

[0041] It should be noted that the top and bottom of valve block 505 are designed with magnets. The interior of hydraulic tank 500 contains magnetic poles that attract valve block 505. The interior of hydraulic tank 500 also contains a switch assembly 509 that engages with the protrusions of valve block 505. Furthermore, magnetic poles are located directly above and below valve block 505 within hydraulic tank 500, attracting it. Magnetic force keeps valve block 505 fixed at its highest position by the attraction of the upper magnetic pole, or lowered to its lowest position by the attraction of the lower magnetic pole. Furthermore, when the valve block 505 is moved, the distance between one side and the magnetic pole increases and the magnetic force decreases, while the other side gets closer to the magnetic pole and the magnetic force increases. Therefore, it will quickly switch positions and attract the magnetic pole on the other side, so it will not stop in the middle area, ensuring the opening and closing effect of the drain hole 508. In addition, there are two sets of switch groups 509. One set is set at the bottom, which is triggered when the valve block 505 moves down to the lowest point and cooperates with the bottom of the protrusion of the valve block 505. The other set is set at the top, which is triggered when the valve block 505 moves up to the highest point and contacts the top of the protrusion of the valve block 505.

[0042] Reference Figure 4-12The transmission assembly includes a drive block 600 disposed on the side wall of the fixed frame 800. The drive block 600 has a set of circular cavities inside. A drive shaft 601 is rotatably connected to the center of each circular cavity. A blade assembly 602 is disposed on the outer side wall of the drive shaft 601, which fits against the inner side wall of the circular cavity. One side of the circular cavity is connected to the liquid supply pipe 503, and the side of the circular cavity away from the liquid supply pipe 503 is connected to a return channel 605. It should be noted that the above-mentioned structure for damping the oil pipeline 100 and its horizontal direction damping is applied along both sides of the oil pipeline 100. According to the design, the hydraulic supply pipe 4 503 connected to the hydraulic tank 2 500 on the other side also converges inside the drive block 600 to drive the blade assembly 602 to rotate. To avoid too many pipelines in the figure, the pipeline structure on the other side, the end of the return pipe 2 402, and some pipelines are not fully shown in the attached drawings. The other end of the return channel 605 is connected to the supply tank 300. The part of the drive shaft 601 extending to the outside of the drive block 600 is connected to the winding shaft 603. The outer wall of the winding shaft 603 is wrapped with a connecting rope 604. The other end of the connecting rope 604 is connected to the detection ring 700.

[0043] Furthermore, the inner wall of the detection ring 700 is equipped with rollers adapted to the outer wall of the oil pipeline 100, and a spring is installed between the detection ring 700 and the fixing frame 800. It should be noted that the inner wall of the detection ring 700 is also equipped with an electromagnetic ultrasonic testing device. The electromagnetic ultrasonic testing device is an existing testing technology that does not require a coupling agent. It can scan and test the pipeline, determine the internal corrosion, wear and distortion of the pipeline based on the echo amplitude, and transmit the test results back to the nearby workstation through the communication equipment installed inside the detection ring 700, which facilitates remote monitoring and timely maintenance of the pipeline.

[0044] The working process of this type of shock-absorbing pipe support for oil transportation pipelines is as follows:

[0045] During normal operation of the oil pipeline 100, the fluid flow inside the oil pipeline 100 is relatively gentle, resulting in less impact on the oil pipeline 100 and less vibration. Vertical impacts and vibrations are mitigated and absorbed by the springs between the support block 201 and the fixed frame 200. Horizontal vibrations and impacts are mitigated by the springs between the buffer blocks 202 on both sides and the fixed ring 101, as well as the springs between the vibration damping rod 208 and the fixed ring 101. For impacts in the inclined direction, they can be decomposed into a combined horizontal and vertical impact, which is mitigated by the buffer block 202 and the support block 201 respectively. Furthermore, the buffer block 202 can slide in the vertical direction, and the support block 201 and the fixed ring 101 are not fixedly connected. Through the compression of the springs between the support block 201 and the fixed frame 200, a certain amount of movement margin can be left in the horizontal direction. Therefore, the above structure can mitigate and absorb impacts and vibrations in various directions, reduce the vibration of the oil pipeline 100, and improve the operational stability of the oil pipeline 100.

[0046] Since the fixing bracket 200 is set in the curved section of the oil pipeline 100, when the fluid inside the oil pipeline 100 flows from the straight section to the curved section, the fluid impacts the side wall of the curved section of the oil pipeline 100 due to inertia. In addition, the centrifugal force when the fluid passes through causes local stress concentration, making it more prone to vibration than a straight pipeline.

[0047] When the fluid vibrates through the bend in the oil pipe 100, and the vibration amplitude is small, the vibration of the oil pipe 100 causes the fixed ring 101 to move, which in turn causes the buffer rod 203 to convert the vibration into vertical reciprocating motion inside the hydraulic cavity 205. When the piston of the buffer rod 203 reciprocates inside the hydraulic cavity 204, the hydraulic oil transmission between the buffer rod 203 and the piston rod 206 drives the piston rod 206 to reciprocate synchronously. Furthermore, through the difference in the flow cross-sectional area between the hydraulic cavity 204 and the hydraulic cavity 205, the piston rod 206 can amplify the small displacement vibration of the buffer rod 203, increasing the reciprocating motion amplitude of the piston rod 206. When the piston rod 206 moves away from the oil pipe 100... When the movement amplitude is small, when the piston rod 206 moves towards the piston cylinder 214, it only compresses the spring between the piston rod 206 and the piston cylinder 214, and does not push the piston cylinder 214 to move away from the oil supply pipe 100. However, the pressure between the piston of the piston rod 206 and the hydraulic chamber 3 207 decreases, and the liquid inside the supply tank 300 is drawn in through the one-way valve of the inlet pipe 211. When the piston rod 206 returns to its original position and moves towards the oil supply pipe 100, the liquid between the piston rod 206 and the hydraulic chamber 3 207 will be pumped into the hydraulic tank 1 400 through the supply pipe 2 212, pushing the hydraulic block 1 401 to rise and compress the spring between the hydraulic block 1 401 and the hydraulic tank 1 400, thereby achieving the storage of hydraulic energy.

[0048] It should be noted that if the displacement amplitude is too small, during the displacement process, the connecting groove 215 is insufficient to contact and connect with the liquid pipe 209 and the liquid supply pipe 210.

[0049] It should be noted that if the hydraulic tank 400 stores too much liquid, causing the hydraulic block 401 to move upwards and pass over the return pipe 402, the excess liquid can flow back to the supply tank 300 through the return pipe 402.

[0050] Furthermore, when the fluid entering the curved section of the oil pipeline 100 experiences increased stress and intensified vibration due to complex flow conditions including sudden velocity changes, gas-liquid mixing, and cavitation effects, the vibration amplitude of the oil pipeline 100 increases. Consequently, the reciprocating movement amplitude of the piston rod 206 also increases. Firstly, the increased displacement amplitude of the piston rod 206, even after compressing the spring between the piston cylinders 214, still provides displacement margin. Therefore, it can push the piston cylinders 214 to cyclically move and reset, thus discharging the liquid between the piston cylinders 214 and the hydraulic chamber 207. The liquid is pumped into the hydraulic tank 500 through the drain pipe 213. Simultaneously, the piston rod 206 reciprocates at a greater amplitude, causing the connecting groove 215 to periodically contact and connect with the liquid passage pipe 209 and the supply pipe 210 during its displacement. When the piston rod 206 moves to the point where the connecting groove 215 connects with the liquid passage pipe 209 and the supply pipe 210, under the elastic force of the hydraulic block 401 and the hydraulic tank 400, the liquid stored inside the hydraulic tank 400 enters the liquid passage pipe 209 through the supply pipe 210 and the connecting groove 215. This pushes the damping rod 208 towards the fixed ring 101, thereby increasing the spring compression between the damping rod 208 and the fixed ring 101, increasing the force on the fixed ring 101 and the oil pipe 100. This achieves the decomposition and buffering of impacts from various angles through the support block 201 and the buffer block 202. During low-amplitude buffering, the spring between the buffer block 202 and the damping rod 208 and the fixed ring 101 buffers the vibration. Furthermore, the difference in cross-sectional area between the first hydraulic cavity 204 and the second hydraulic cavity 205 captures and amplifies the vibration force. The system recovers the pumped fluid stored inside the hydraulic tank 400 through vibration. When the amplitude of the vibration increases due to the impact on the curved section of the oil pipe 100, the piston rod 206 moves and connects with the fluid passage 209 and the supply pipe 210 to convert the stored force into a reaction thrust in the direction of the fixed ring 101. This achieves buffering and recovery of vibration force at low amplitude, and converts the stored force into stress to resist vibration when the vibration intensifies, suppressing the resonance effect of the oil pipe 100 and providing a limiting force on the amplitude. This can improve the stability of the flow in the curved section of the oil pipe 100.

[0051] Furthermore, the liquid entering the hydraulic tank 200 through the drain pipe 213 can push the hydraulic block 204 to move slowly downwards, compressing the spring between the hydraulic block 204 and the hydraulic tank 200. It should be noted that initially, valve block 105 is at its highest position, attracted by the magnet at the top of valve block 105 and the magnet located directly above valve block 105 inside the hydraulic tank 200. The connecting hole 507 is not connected to the drain hole 508. As the amount of liquid pumped into the hydraulic tank 200 gradually increases, the hydraulic block 204 moves downwards until it connects with the valve block 505. The protruding contact of block 2 506 further pushes valve block 2 506 downward to contact valve block 1 505, and then pushes valve block 1 505 downward synchronously. When valve block 1 505 moves downward, the distance between the top magnetic pole of valve block 1 505 and the magnetic pole above hydraulic tank 2 500 increases, and the magnetic force decreases, while the distance between the bottom magnetic pole of valve block 1 505 and the magnetic pole below hydraulic tank 2 500 decreases, and the magnetic force increases, causing valve block 1 505 to move rapidly to the lowest position. At the same time, valve block 1 505 triggers the switch group 509 at the bottom through pressure, controlling the electromagnetic ultrasonic detection device inside the detection ring 700 to be energized and started. At this time, the reference... Figure 10When valve block 1 505 moves to its lowest position, the connecting hole 507 connects with the drain hole 508. When valve block 2 506 moves to its lowest position, the supply pipe 3 501 connects with the connecting hole 507. At this time, the pressurized liquid inside hydraulic tank 2 500 enters the supply pipe 2 212 through the supply pipe 3 501, replenishing the hydraulic tank 1 400 and providing accumulator liquid to hydraulic block 1 401. As the liquid inside hydraulic tank 2 500 decreases, hydraulic block 2 504 slowly resets and rises. Furthermore, when the fixed ring 101 still has a large amplitude, liquid will continue to be pumped into the hydraulic tank 1 400, increasing the diameter of the supply pipe 3 501 and... The unit time flow rate matches the unit time flow rate of the liquid pumped into the hydraulic tank 2 500 through the drain pipe 213 at the amplitude threshold. At the amplitude threshold, the flow rates into the hydraulic tank 2 500 and outflow rates from the supply pipe 3 501 are balanced, and the reset speed of the hydraulic block 2 504 is slow or reaches equilibrium. When the amplitude decreases, the flow rate of the liquid pumped into the hydraulic tank 2 500 decreases, and the hydraulic block 2 504 gradually rises and resets. When the hydraulic block 2 504 rises, the valve block 2 506 resets and rises synchronously under the elastic force of the bottom spring until the valve block 2 506 rises to abut against the valve block 1 505. At this time, the valve block 2 506 moves upward to the supply pipe 4 503. Connected to the connecting hole 507, the liquid inside the hydraulic tank 2 500 is discharged into the drive block 600 through the supply pipe 4 503. The supply pipe 4 503 enters the circular cavity inside the drive block 600 along the eccentric direction and is discharged from the return channel 605 on the other side back to the supply tank 300. During this process, it drives the blade assembly 602 to rotate in a specific direction, which in turn drives the winding shaft 603 to rotate, winding the connecting rope 604 and pulling the detection ring 700 to move towards the fixed frame 2 800. The electromagnetic ultrasonic detection device inside the detection ring 700 scans and detects the impact section of the oil pipe 100, detecting the wear inside the oil pipe 100. Regarding the thickness loss, during the movement of the detection ring 700, the spring between the detection ring 700 and the fixed frame 800 is compressed. When the hydraulic block 504 resets and moves upward to contact the protrusion of the valve block 505 and pushes the valve block 505 upward, the valve block 505 resets upward. The drain hole 508 and the connecting hole 507 are not connected. During the process of the valve block 505 resetting upward, it will also trigger the switch group 509 above through contact and pressure, controlling the internal electronic equipment of the detection ring 700 to send the detection data and then cut off the power to prepare for the next detection cycle. The detection ring 700 then slowly resets under the elastic force of the spring.

[0052] It should be noted that, regarding the fatigue accumulation effect of the oil pipe 100, when the oil pipe 100 is subjected to an amplitude exceeding the safe range, including the vibration distance, when the total vibration distance reaches a certain level, or when the material reaches the critical fatigue level, the oil pipe 100 will be more prone to crack initiation and accelerated wear. When the amplitude of the piston rod 206 reaches a certain level, it will pump fluid into the hydraulic tank 2 500. The larger the amplitude, the larger the pumping volume. Therefore, whenever the amplitude reaches a certain level, a certain amount of accumulated liquid will be pumped into the hydraulic tank 2 500. When the limit is reached, a scan detection of the oil pipe 100 can be triggered, realizing the periodic automatic fatigue detection of the oil pipe 100.

[0053] The above process, through the elastic design of piston rod 206 and piston cylinder 214, ensures that the pump fluid inside hydraulic tank 2 500 is stored only when a certain amplitude is reached. When the fluid inside hydraulic tank 2 500 reaches its limit, i.e. when the bend of oil pipe 100 experiences a large-amplitude vibration reaching a specified distance, the cooperation of valve block 1 505 and valve block 2 506 first replenishes pressurized fluid inside hydraulic tank 1 400 to provide shock absorption. When the amplitude decreases, valve block 2 506 resets and changes the connection state, supplying fluid to drive block 600, driving winding shaft 603 to wind up and move detection ring 700 along the impact section of the outer wall of oil pipe 100 for detection. No manual periodic inspection is required, realizing periodic automatic detection based on the total impact amplitude. Moreover, the detection automatically judges the fluid level before detection, avoiding the influence of turbulent fluid on the detection results and improving the accuracy of detection.

[0054] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A shock-absorbing pipe support for an oil pipeline, comprising an oil pipeline (100), a first fixing bracket (200), a liquid supply tank (300), a second fixing bracket (800), and a detection ring (700), characterized in that, A retaining ring (101) is provided on the outer wall of the oil pipeline (100). A support block (201) that cooperates with the retaining ring (101) is provided on the inner side of the first fixing frame (200). A spring is provided between the support block (201) and the inner wall of the first fixing frame (200). A buffer block (202) is movably sleeved on the side wall of the first fixing frame (200). A buffer rod (203) and a vibration damping rod (208) are movably sleeved inside the buffer block (202). The buffer rod (203) and the retaining ring are connected to each other. (101) Fixed connection, a spring is provided between the buffer block (202) and the fixing ring (101), the damping rod (208) is connected to the fixing ring (101) through the spring, a liquid pipe (209) communicating with the end of the damping rod (208) is provided inside the buffer block (202), a return pipe (216) is provided inside the fixing frame (200), and a hydraulic cavity (204), a hydraulic cavity (205) and a hydraulic cavity (207) are provided inside the buffer block (202). The buffer rod (203) is provided with a piston at its end that is sleeved with the hydraulic cavity one (204). The buffer block (202) is provided with a piston rod (206) inside. The piston rod (206) is provided with pistons at both ends that are sleeved with the inner sidewalls of the hydraulic cavity two (205) and the hydraulic cavity three (207), respectively. The sidewall of the fixed frame one (200) is fixedly installed with a hydraulic tank one (400). The hydraulic cavity three (207) and the liquid supply tank (300) are connected by an inlet pipe (211). (207) A second liquid supply pipe (212) is connected to the other end of the second liquid supply pipe (212) and the interior of the first hydraulic tank (400). A first hydraulic block (401) is sleeved inside the first hydraulic tank (400). A spring is provided between the first hydraulic block (401) and the first hydraulic tank (400). A first liquid supply pipe (210) connected to the liquid circuit pipe (209) is provided at the bottom of the first hydraulic block (401). A pumping mechanism and a power storage mechanism are also provided inside the buffer block (202). The pump mechanism includes a drain pipe (213) disposed inside the buffer block (202) and communicating with the hydraulic cavity three (207). The piston rod (206) extends to one end inside the hydraulic cavity three (207), and the piston is connected to the piston cylinder (214) by a spring. The piston cylinder (214) and the piston rod (206) are located inside the hydraulic cavity three (207) and there is a cavity between them. The liquid supply pipe two (212) is designed to be close to the side of the oil supply pipe (100), and the drain pipe (213) is designed to be located inside the hydraulic cavity three (207) on the side away from the oil supply pipe (100). The power storage mechanism includes a hydraulic tank two (500) fixedly installed on the side wall of a fixed frame one (200). A hydraulic block two (504) is sleeved inside the hydraulic tank two (500). A spring is provided between the hydraulic block two (504) and the hydraulic tank two (500). One end of the drain pipe (213) is connected to a hydraulic chamber three (207), and the other end of the drain pipe (213) is connected to the hydraulic tank two (500). A valve block one (505) and a valve block two (506) are sleeved on the inner side wall of the hydraulic tank two (500). The side wall of the valve block one (505) has two sets of protrusions extending into the interior of the hydraulic tank two (500). The interior of the valve block two (506) has... A set of protrusions extending into the interior of hydraulic tank two (500), and valve block one (505) having a sliding groove that matches the protrusion of valve block two (506), a spring being provided between the bottom of valve block two (506) and hydraulic tank two (500), a drain hole (508) being provided on the side wall of hydraulic tank two (500), a connecting hole (507) being provided on the side wall of valve block one (505) that matches the drain hole (508), a supply pipe three (501) and a supply pipe four (503) being provided on the side wall of valve block two (506), the other end of the supply pipe three (501) being connected to the supply pipe two (212), and a transmission assembly being provided on the side wall of the fixing frame two (800); The transmission assembly includes a drive block (600) disposed on the side wall of the fixed frame two (800). The drive block (600) has a set of circular cavities inside. A drive shaft (601) is rotatably connected to the center of the circular cavity. The outer side wall of the drive shaft (601) is provided with a blade group (602) that fits against the inner side wall of the circular cavity. One side of the circular cavity is connected to the liquid supply pipe four (503). The side of the circular cavity away from the liquid supply pipe four (503) is connected to a return channel (605). The other end of the return channel (605) is connected to the liquid supply tank (300). The part of the drive shaft (601) extending to the outside of the drive block (600) is connected to a winding shaft (603). A connecting rope (604) is wound around the outer side wall of the winding shaft (603). The other end of the connecting rope (604) is connected to the detection ring (700).

2. The shock-absorbing pipe support for an oil pipeline according to claim 1, characterized in that, The cross-sectional area of ​​the first hydraulic cavity (204) is greater than that of the second hydraulic cavity (205), and the cross-sectional area of ​​the third hydraulic cavity (207) is greater than that of the second hydraulic cavity (205).

3. The shock-absorbing pipe support for an oil pipeline according to claim 1, characterized in that, The piston rod (206) is designed with pistons at both ends and a smooth rod in the middle. The smooth rod in the middle of the piston rod (206) has a connecting groove (215) that cooperates with the liquid passage pipe (209) and the liquid supply pipe (210). The connecting groove (215) has a cross-shaped design along the radial section of the piston rod (206).

4. A shock-absorbing pipe support for an oil pipeline according to claim 1, characterized in that, The side wall of the hydraulic tank (400) is provided with a return pipe (402). One end of the return pipe (402) is connected to the inside of the hydraulic tank (400), and the other end of the return pipe (402) is connected to the liquid supply tank (300).

5. A shock-absorbing pipe support for an oil pipeline according to claim 1, characterized in that, The top and bottom of the valve block 1 (505) are designed with magnets. The interior of the hydraulic tank 2 (500) is provided with magnetic poles that cooperate with and attract the valve block 1 (505). The interior of the hydraulic tank 2 (500) is provided with a switch group (509) that cooperates with the protrusion of the valve block 1 (505).

6. A shock-absorbing pipe support for an oil pipeline according to claim 1, characterized in that, The inner wall of the detection ring (700) is provided with a roller adapted to the outer wall of the oil pipe (100), and a spring is provided between the detection ring (700) and the second fixing frame (800).

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