Multifunctional anticorrosion damping pipeline

Abstract

The application discloses a multifunctional anticorrosion shock-absorbing pipeline, and relates to the technical field of pipeline protection, which comprises a protection assembly, the protection assembly comprising a partition plate, a protection block, an electrolyte chamber, an anticorrosion piece, a drying cover, an elastic buffer layer, a vibration power generation piece and a power supply piece; the electrolyte chamber is arranged on the upper side of the protection block, and the electrolyte chamber is filled with electrolyte; the upper end of the protection block is fixed to the lower side of the partition plate, and the lower end of the drying cover is fixed above the partition plate; the anticorrosion piece is arranged in the electrolyte chamber; the elastic buffer layer is arranged in the protection block, and the elastic buffer layer is located at the side of the electrolyte chamber; the pipeline has excellent anticorrosion performance, adopts a sacrificial anode and an impressed current cathodic protection double anticorrosion structure, the potential fluctuation is less than or equal to + / - 0.05 V through Schmidt trigger hysteresis control, the utilization efficiency of a magnesium alloy anode is improved, the service life is prolonged, the functional electrolyte is suitable for different working conditions, and the anticorrosion stability is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of pipeline protection technology, and in particular to a multifunctional anti-corrosion and shock-absorbing pipeline. Background Technology

[0002] Pipeline transportation is one of the main methods of transporting energy such as oil and natural gas. During long-term operation, pipelines not only face electrochemical corrosion problems from the transported medium and the external environment, but also need to cope with vibrations and shocks caused by medium flow and pressure changes. These factors combined can seriously threaten the structural safety of pipelines, shorten their service life, and increase maintenance costs.

[0003] To combat corrosion, existing technologies primarily employ sacrificial anode protection or impressed current cathodic protection. For instance, some solutions, such as retractable arc-shaped sacrificial anode plates, while solving the problem of poor anode-pipe fit and eliminating the need for an external power source, cannot dynamically adjust the pipe potential according to operating conditions. Their protective effect is unstable in complex environments or when media conditions change, and they lack backup or enhanced protection mechanisms.

[0004] For example, composite continuous tube impressed current cathodic protection systems can achieve precise potential control, but their operation relies entirely on continuous power supply from the external power grid, resulting in high energy consumption and long-term maintenance costs. More importantly, most existing pipeline protection technologies have relatively simple functions, mainly focusing on corrosion prevention, without effectively integrating or utilizing the inherent vibration energy during pipeline operation. They also lack synergistic design with vibration reduction, power generation, and other functions, showing significant deficiencies in multi-functional integration, energy self-sufficiency, and intelligence. Therefore, there is an urgent need to develop a new type of pipeline with corrosion prevention, vibration reduction, and power generation functions to solve the above problems. Summary of the Invention

[0005] This application provides a multifunctional anti-corrosion and vibration-damping pipeline, addressing the shortcomings of most existing pipeline protection technologies. These technologies primarily focus on corrosion prevention, failing to effectively integrate or utilize the inherent vibration energy during pipeline operation. They also lack synergistic design with vibration reduction and power generation functions, exhibiting significant deficiencies in multifunctional integration, energy self-sufficiency, and intelligence. This new technology achieves superior anti-corrosion performance by employing a dual anti-corrosion structure of sacrificial anode and impressed current cathodic protection. Schmitt trigger hysteresis control ensures potential fluctuations ≤ ±0.05V, improving the utilization efficiency of the magnesium alloy anode and extending its service life. The functional electrolyte is adaptable to different operating conditions, significantly enhancing anti-corrosion stability. Vibration reduction and power generation are synergistic; the triple vibration reduction structure achieves a vibration reduction rate of over 40%, while magnetic damping selectively attenuates vibration, retaining effective vibration for power generation. The circumferential arrangement improves power generation efficiency, eliminating the need for additional power supply. It is adaptable to various operating conditions, including conventional, low-temperature, high-temperature, high-vibration, buried, and overhead applications. The electrolyte formula can be flexibly adjusted, covering a wide range of oil and gas transmission pipelines.

[0006] This application provides a multifunctional anti-corrosion and vibration-damping pipeline, including a protective component. The protective component includes a partition, a protective block, an electrolyte chamber, anti-corrosion parts, a drying hood, an elastic buffer layer, a vibration generating component, and a power supply component.

[0007] An electrolyte chamber is opened on the upper side of the protective block, and the electrolyte chamber is filled with electrolyte. The upper end of the protective block is fixed to the lower side of the partition, and the lower end of the drying hood is fixed to the upper part of the partition; Corrosion-resistant components are installed inside the electrolyte chamber; An elastic buffer layer is installed inside the protective block, and the elastic buffer layer is located on the side of the electrolyte chamber; Both the vibration generator and the power supply are housed inside the drying hood.

[0008] As an improvement, the protective components also include a slag collection trough, a positioning plate, and threaded holes; A slag collection tank is provided on the bottom side of the electrolyte chamber, and the slag collection tank is connected through the electrolyte chamber. The slag collection trough is sealed with a plug; There are two positioning plates and two threaded holes, and they correspond one-to-one. The positioning plates are symmetrically fixed on both sides of the protective block, and threaded holes are opened through the positioning plates. Threaded holes allow bolts to pass through for securing devices; The bottom side of the electrolyte chamber is inclined toward the slag collection tank.

[0009] As an improvement, the partitions, protective blocks, drying hoods, and positioning plates are made of reinforced engineering plastics.

[0010] As an improvement, corrosion-resistant components include a silver chloride reference electrode and a magnesium alloy anode rod; Both the silver chloride reference electrode and the magnesium alloy anode rod are located within the electrolyte chamber; Both the silver chloride reference electrode and the magnesium alloy anode rod are completely immersed in the electrolyte filling the electrolyte chamber; The silver chloride reference electrode has only its tip exposed, while the rest is encased in a polytetrafluoroethylene insulating sleeve. The magnesium alloy anode rod is fitted with a glass fiber reinforced polyamide anti-displacement sleeve, and the bottom of the magnesium alloy anode rod is lower than the lowest electrolyte level.

[0011] As an improvement, the partition, protective block, electrolyte chamber, and drying hood are all L-shaped; The protective components also include mounting ports; The mounting port is L-shaped, and there are two mounting ports on the protective block. The two mounting ports are respectively located on both sides of the electrolyte chamber. There are two elastic buffer layers, each corresponding to one of the two mounting ports; The elastic buffer layer is L-shaped and is installed inside the mounting opening. The surface of the elastic buffer layer has multiple honeycomb-shaped pores arranged in an array. These pores are used to absorb any small amount of leaked electrolyte.

[0012] As an improvement, the vibration-generating component includes a permanent magnet, a coil, a coil mounting slot, a potential sensor, and wires; The drying hood has an inverted U-shaped cross-section; The potential sensor is fixed to the side of the partition, and the potential sensor is located at the L-shaped corner of the partition. The potential sensor is electrically connected to the silver chloride reference electrode; Both the permanent magnet and the coil mounting slot are fixed to the side of the partition. There are multiple permanent magnet and coil mounting slots, and multiple permanent magnet and multiple coil mounting slots are arranged alternately on the side of the partition. The number of coils and the number of coil mounting slots are the same and correspond one-to-one. The coils are set in the coil mounting slots. The coil is connected to the power supply component via a wire; The coils are arranged in a ring along the inner side of the drying hood.

[0013] As an improvement, the power supply components include batteries and energy storage modules; The battery and energy storage module are fixed to the side of the partition; The wires are connected to the battery, and the battery is connected to the energy storage module. The battery is electrically connected to the potential sensor; The battery output terminal is connected to a magnesium alloy anode.

[0014] As an improvement, the energy storage module is used to collect the electrical energy generated by coil vibration; The energy storage module can replace the power supply when the battery is low, and at the same time store the excess electrical energy.

[0015] As an improvement, a protective block is installed that runs through the top and bottom of the mounting port; The elastic buffer layer is removably installed inside the mounting port.

[0016] As an improvement, the protective components also include moisture-absorbing bags; The moisture-absorbing packs are fixed inside the elastic buffer layer. The number of moisture-absorbing packs is consistent with the number of honeycomb-shaped pores on the side of the elastic buffer layer near the electrolyte chamber, and they correspond one-to-one. The honeycomb-like pores on the surface of the elastic buffer layer are connected to the moisture-absorbing pack; The moisture-absorbing pack is filled with moisture-absorbing salt.

[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: Firstly, it boasts excellent corrosion resistance, employing a dual corrosion-resistant structure of sacrificial anode and impressed current cathodic protection. Schmitt trigger hysteresis control ensures potential fluctuations of ≤±0.05V, improving the utilization efficiency of the magnesium alloy anode and extending its service life. The functional electrolyte is adaptable to different operating conditions, significantly enhancing corrosion resistance and stability. Secondly, it features synergistic vibration reduction and power generation, with a triple vibration reduction structure achieving a vibration reduction rate of over 40%. Simultaneously, magnetic damping selectively attenuates vibrations, retaining effective vibrations for power generation. The circumferential arrangement improves power generation efficiency, eliminating the need for additional power supply. Thirdly, it is suitable for various operating conditions, including conventional, low-temperature, high-temperature, high-vibration, underground, and overhead applications. The electrolyte formula can be flexibly adjusted, covering a wide range of oil and gas pipeline applications.

[0018] Secondly, the redesigned structure allows for individual replacement of the elastic buffer layer without disassembling the entire complex protective assembly. This significantly reduces maintenance time, labor costs, and losses due to production downtime. The detachable design makes periodic inspection and evaluation of the buffer layer a simple routine maintenance procedure, allowing users to preventatively replace it before its performance significantly deteriorates, thus ensuring that the elastic buffer layer is always in optimal working condition. This not only directly improves the stability of the vibration damping effect but also avoids the problem of a decrease in the overall vibration damping rate and accelerated wear of other components due to the failure of a single part, thereby extending the service life of the entire device and even the protected pipeline.

[0019] Thirdly, the moisture-absorbing salts inside the moisture-absorbing pack can chemically react with the infiltrated liquid electrolyte, converting it into crystalline hydrates or fixing it within the salt lattice. From physical adsorption to chemical fixation, this completely prevents the electrolyte from flowing back or seeping out of the elastic buffer layer, eliminating the risk of contamination to the interlayer environment and other internal components. The moisture-absorbing pack quickly locks in moisture through chemical means, keeping the base material of the elastic buffer layer as dry as possible. This effectively slows down the corrosion and aging process of the polymer material by the electrolyte, thereby extending the service life of the elastic buffer layer itself and indirectly improving the durability and stability of its shock absorption performance. Attached Figure Description

[0020] Figure 1 This invention provides a three-dimensional multifunctional anti-corrosion and vibration-damping pipeline. Figure 1 ; Figure 2 This invention provides a three-dimensional multifunctional anti-corrosion and vibration-damping pipeline. Figure 2 ; Figure 3 This is a structural diagram of the electrolyte chamber of a multifunctional anti-corrosion and shock-absorbing pipeline according to the present invention; Figure 4 This is a diagram of the diaphragm structure of a multifunctional anti-corrosion and shock-absorbing pipeline according to the present invention; Figure 5 This is a structural diagram of a drying hood for a multifunctional anti-corrosion and shock-absorbing pipeline according to the present invention; Figure 6This is a structural diagram of a power supply component for a multifunctional anti-corrosion and vibration-damping pipeline according to the present invention; Figure 7 This is a schematic diagram showing the installation port opening state of a multifunctional anti-corrosion and vibration-damping pipe according to the present invention. Figure 8 This is a schematic diagram of the elastic buffer layer structure of a multifunctional anti-corrosion and shock-absorbing pipeline according to the present invention; Figure 9 This is a schematic diagram of the installation of a moisture-absorbing bag for a multifunctional anti-corrosion and shock-absorbing pipeline according to the present invention.

[0021] In the diagram: 100, protective component; 110, partition; 120, protective block; 121, electrolyte chamber; 122, slag collection tank; 123, mounting port; 130, anti-corrosion component; 131, silver chloride reference electrode; 132, magnesium alloy anode rod; 140, drying hood; 150, positioning plate; 151, threaded hole; 160, elastic buffer layer; 170, vibration power generation component; 171, permanent magnet; 172, coil; 173, coil mounting slot; 174, potential sensor; 175, wire; 180, power supply component; 181, battery; 182, energy storage module; 190, moisture-absorbing bag. Detailed Implementation

[0022] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0023] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Example 1: As Figures 1-6 As shown, this application discloses a multifunctional anti-corrosion and shock-absorbing pipeline, including a protective component 100; The protective assembly 100 includes a partition 110, a protective block 120, an electrolyte chamber 121, a slag collection tank 122, a mounting port 123, a corrosion-resistant component 130, a drying hood 140, a positioning plate 150, a threaded hole 151, an elastic buffer layer 160, a vibration generating component 170, and a power supply component 180. An electrolyte chamber 121 is formed on the upper side of the protective block 120, and the electrolyte chamber 121 is filled with electrolyte. The upper end of the protective block 120 is fixed to the lower side of the partition 110, and the lower end of the drying hood 140 is fixed above the partition 110. Corrosion-resistant component 130 is installed inside electrolyte chamber 121; An elastic buffer layer 160 is disposed inside the protective block 120, and the elastic buffer layer 160 is located on the side of the electrolyte chamber 121. The elastic buffer layer is 160 with a thickness of 8-10mm.

[0026] Both the vibration generator 170 and the power supply 180 are housed inside the drying hood 140.

[0027] A slag collection trough 122 is provided on the bottom side of the electrolyte chamber 121, and the slag collection trough 122 is provided through the electrolyte chamber 121. The slag collection trough 122 is sealed with a plug; There are two positioning plates 150 and two threaded holes 151, and they correspond one-to-one. Positioning plates 150 are symmetrically fixed on both sides of protective blocks 120, and threaded holes 151 are opened through the positioning plates 150. The threaded hole 151 allows a bolt to pass through for securing the device. The bottom side of the electrolyte chamber 121 is inclined toward the slag collection tank 122.

[0028] The partition 110, protective block 120, drying hood 140 and positioning plate 150 are made of reinforced engineering plastic.

[0029] Specifically, the partition 110, protective block 120, drying hood 140, and positioning plate 150 are made of reinforced engineering plastics with corrosion resistance, high fatigue resistance, high mechanical strength, and good insulation properties, such as PA66 + 20%-30% glass fiber material. This type of material has low density, an applicable temperature range of -40℃ to 120℃, and a vibration fatigue resistance of ≥10 cycles. 7 Secondly, it is resistant to electrolyte corrosion.

[0030] Corrosion-resistant component 130 includes a silver chloride reference electrode 131 and a magnesium alloy anode rod 132; Both the silver chloride reference electrode 131 and the magnesium alloy anode rod 132 are disposed inside the electrolyte chamber 121; Both the silver chloride reference electrode 131 and the magnesium alloy anode rod 132 are completely immersed in the electrolyte filling the electrolyte chamber 121; The bottom of the magnesium alloy anode rod 132 is below the lowest electrolyte level.

[0031] Specifically, the silver chloride reference electrode 131 has only its tip exposed, while the rest is covered with a polytetrafluoroethylene insulating sleeve to avoid excessive reaction with the electrolyte. The silver chloride reference electrode 131 is immersed in the electrolyte to provide a stable reference potential. The two work together to achieve accurate acquisition of the pipeline potential.

[0032] Specifically, the magnesium alloy anode rod 132 is fitted with a glass fiber reinforced polyamide anti-displacement sleeve, which is fixed by a slot and its bottom is lower than the minimum electrolyte level to ensure that it is always immersed in the electrolyte.

[0033] Specifically, the magnesium alloy anode rod 132 may react with oxygen to form metal oxides that precipitate into the electrolyte, while the silver chloride reference electrode 131 may react with OH- in the solution. — CO3 2- The ion reaction produces precipitate, which needs to be cleaned regularly. The bottom of the electrolyte chamber 121 is tilted at a certain angle toward the slag collection tank 122 to facilitate the collection of slag, and at the same time, it also has the function of replenishing the electrolyte.

[0034] Thickeners can be added to the electrolyte to increase its viscosity, which can also reduce the vibration of the inner pipe. The following three formulations are recommended for functional electrolytes depending on different operating conditions: General-purpose type: Suitable for conventional pipeline conditions with stable flow, low vibration intensity, and ambient temperature close to room temperature, such as oil transportation pipelines. At 25℃, the conductivity is about 8.2 mS / m, the viscosity is about 15 mPa·s, and the pH is about 8.0. The core requirements are: balanced performance, no extreme requirements for conductivity, viscosity, and pH value, and good ion conductivity and moderate damping effect; for example, using distilled water as the base liquid, containing 5% sodium chloride, 0.5% boric acid, and 0.5% sodium carboxymethyl cellulose. High-vibration type: Suitable for harsh working conditions where the medium has a high flow rate, the pipeline vibrates violently, and liquid flow impact is easily generated, such as natural gas pipelines with high flow impact. At 25℃, the conductivity is about 6.5 mS / m, the viscosity is about 18 mPa·s, and the pH is about 8.3. The core requirements are: high viscosity, enhanced damping and vibration reduction, shear resistance and anti-delamination, and the ability to maintain uniform composition under strong impact; for example, using distilled water as the base liquid, containing 3% potassium chloride, 0.3% sodium bicarbonate and 0.8% xanthan gum; Low-temperature type: Suitable for cold-region working conditions with low ambient temperature, easy freezing, and decreased ion activity at low temperatures, such as buried pipelines in cold regions. The core requirements are: strong antifreeze, freezing point < -15℃, conductivity without decay at low temperatures, suitable viscosity, and no loss of fluidity due to thickening at low temperatures. At 25℃, the conductivity is about 11mS / m, the viscosity is about 12mPa·s, and the freezing point is about -15℃. It can also maintain ion conduction efficiency and basic damping effect in low-temperature environments. For example, it uses distilled water as the base liquid and contains 10% calcium chloride, 0.4% hydroxypropyl methylcellulose, and 2% ethylene glycol.

[0035] The functional electrolyte offers three compatible formulations: 0.1% benzalkonium chloride is added to inhibit microbial growth; 2% ethylene glycol is added to the general-purpose formulation to lower the freezing point when the temperature is ≤-10℃; and it is used with aluminum heat sink fins when the temperature is ≥60℃. Petroleum-based thickeners are prohibited during formulation to ensure compatibility with the anode and seals.

[0036] Specifically, the electrolyte filling the electrolyte chamber 121 can also act as a damping layer, dissipating energy through pipe vibration and friction.

[0037] The partition 110, protective block 120, electrolyte chamber 121 and drying hood 140 are all L-shaped; The mounting port 123 is L-shaped. There are two mounting ports 123 on the protective block 120. The two mounting ports 123 are respectively located on both sides of the electrolyte chamber 121. There are two elastic buffer layers 160, each corresponding to one of the two mounting ports 123; The elastic buffer layer 160 is L-shaped and is disposed inside the mounting port 123. The surface of the elastic buffer layer 160 has multiple honeycomb-shaped pores arranged in an array. These pores are used to absorb any small amount of leaked electrolyte.

[0038] Specifically, honeycomb-shaped pores are formed on the surface of the elastic buffer layer 160, which absorbs vibration energy through compression rebound and shear deformation, while adsorbing a small amount of electrolyte to avoid contaminating the interlayer.

[0039] The vibration power generation component 170 includes a permanent magnet 171, a coil 172, a coil mounting slot 173, a potential sensor 174, and a wire 175. The drying hood has an inverted U-shaped cross-section; Potential sensor 174 is fixed on the upper side of partition 110, and potential sensor 174 is located at the L-shaped corner of partition 110. Potential sensor 174 is electrically connected to silver chloride reference electrode 131; The potential sensor 174 integrates an LM311 Schmitt trigger. Specifically, the potential sensor 174 is used to detect the potential of the internal pipeline.

[0040] The permanent magnet 171 and the coil mounting slot 173 are both fixed to the upper side of the partition 110; There are multiple permanent magnets 171 and multiple coil mounting slots 173, and multiple permanent magnets 171 and multiple coil mounting slots 173 are arranged alternately on the side of the partition 110. The number of coils 172 is the same as the number of coil mounting slots 173, and they correspond one-to-one. The coils 172 are set in the coil mounting slots 173. The coil 172 is connected to the power supply unit 180 via a wire 175.

[0041] The coil 172 is arranged in a ring along the inner side of the drying hood 140; Specifically, the coil 172 is bonded to the top of the drying hood 140, and the permanent magnet 171 is wrapped in a composite layer; Specifically, the permanent magnet 171 and the coil 172 can be combined to form a magnetic damping structure, which uses Lenz's law to reduce vibration.

[0042] Specifically, coil 172 is a lightweight strip structure made of enameled copper wire, which collects electrical energy from the radial and axial vibrations of the pipe by cutting magnetic field lines.

[0043] The permanent magnet 171 is wrapped to protect the permanent magnet 171 while reducing the impact on the penetration of magnetic field lines. The permanent magnet 171 has a three-layer wrapping structure from the inside to the outside, namely polytetrafluoroethylene film, rubber, and glass fiber reinforced polyamide, whose functions are, in order, insulation and corrosion protection, vibration buffering, structural fixation and protection. The center line connecting the permanent magnet 171 and the coil 172 coincides, improving the magnetic flux utilization rate. The coil 172 adopts a lightweight strip structure and is arranged in a ring around the top of the drying hood 140 to avoid increasing the damping of pipe vibration. The full circumferential arrangement design ensures that the coil 172 cuts the magnetic field lines when the pipe vibrates radially and axially, and the power generation efficiency is increased by 20% to 30% compared with the single-sided arrangement.

[0044] The power supply unit 180 includes a battery 181 and an energy storage module 182; Battery 181 and energy storage module 182 are fixed to the side of partition 110; The wire 175 is connected to the battery 181, and the battery 181 is connected to the energy storage module 182; Battery 181 is electrically connected to potential sensor 174.

[0045] Battery 181 output terminal is connected to magnesium alloy anode 132; Energy storage module 182 is used to collect electrical energy generated by the vibration of coil 172; The energy storage module 182 can replace the power supply when the battery 181 is low on power, and at the same time store the excess electrical energy.

[0046] Specifically, the silver chloride reference electrode 131 is used to detect the potential on the surface of the inner pipe. When the potential exceeds a threshold, it triggers cathodic protection with an applied current. The signal is transmitted to the LM311 Schmitt trigger equipped with the potential sensor 174, with an applied current start threshold of -0.77 to -0.73V and a stop threshold of -0.87 to -0.83V. The battery 181 is located inside the power supply assembly 5 to prevent short circuits caused by environmental interference. The coil 172 is connected to the power supply assembly 180 with a wire 175 to supply power to the battery 181. Excess power is stored by the energy storage module 182 to improve energy utilization.

[0047] The Schmitt trigger filters out small potential fluctuations through hysteresis control to avoid frequent start-stop. The battery 181 and the energy storage module 182 are located in a sealed shell to avoid short circuits. The energy storage module 182 can store the energy generated by the coil 172 and charge the battery 181 after it is working.

[0048] Before using this invention, first pass the pipe to be protected through the drying hood 140 and the coil 172, fix the pipe to be protected, open the slag collection tank 122, and add the functional electrolyte corresponding to the working condition to the specified liquid level through the slag collection tank 122. When using this invention, the pipeline operation generates vibration, and at the same time, anti-corrosion protection work is carried out on the outer wall of the pipeline; Under normal conditions: The magnesium alloy anode rod 132 provides passive cathodic protection for the pipeline through the sacrificial anode principle. When the sacrificial anode protection method cannot meet the corrosion prevention requirements, the pipeline potential will increase. The silver chloride reference electrode 131 collects the pipeline potential in real time. When the potential is higher than about -0.73V, the Schmitt trigger of the potential sensor 174 triggers the power supply component 180 to work, and applies cathodic protection current to the pipeline through the functional electrolyte. When the potential is lower than about -0.85V, the power supply component 180 stops working. The hysteresis control filters out small potential fluctuations and avoids frequent anode loss. The magnesium salt residue produced by anode corrosion flows with the electrolyte and naturally settles into the slag collection tank 122. At the same time, the functional electrolyte can be replenished through the slag collection tank 122. The bottom of the slag collection tank 122 is sealed with a plug. Vibration reduction operation: When pipeline vibration occurs, the elastic buffer layer 160 absorbs medium and high frequency vibration energy through compression rebound and shear deformation. The elastic buffer layer 160 has honeycomb-shaped pores that can adsorb a small amount of functional electrolyte. With vibration, it generates flow friction. Thickener is added to the electrolyte to form a liquid-solid damping layer to consume vibration energy. At the same time, the permanent magnet 171 of the vibration power generation component 170 moves relative to the coil 172, generating reverse electromagnetic resistance to form magnetic damping for power generation and at the same time reducing the aftershocks generated by the vibration of the internal pipeline. The triple structure works together to improve the vibration reduction rate. Power generation operation: Pipe vibration causes the permanent magnet 171 and coil 172 to move relative to each other. Coil 172 cuts magnetic field lines to generate induced electrical energy. The electrical energy generated by coil 172 is transmitted to battery 181 via wire 175. Excess electrical energy is stored in energy storage module 182. Battery 181 powers potential sensor 174. When the pipe vibration stops and there is no power generation input, the electrical energy stored in energy storage module 182 can maintain the operation of the anti-corrosion system and ensure the stability of anti-corrosion. The silver chloride reference electrode 131, magnesium alloy anode rod 132, potential sensor 174 and energy storage module 182 are all existing technologies and will not be described in detail here.

[0049] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: It boasts excellent corrosion resistance, employing a dual corrosion protection structure of sacrificial anode and impressed current cathodic protection. Schmitt trigger hysteresis control ensures potential fluctuations ≤ ±0.05V, improving the utilization efficiency of the magnesium alloy anode and extending its service life. The functional electrolyte is adaptable to different operating conditions, significantly enhancing corrosion resistance and stability. Vibration reduction and power generation are synergistic; the triple vibration reduction structure achieves a vibration reduction rate of over 40%, while magnetic damping selectively attenuates vibrations, retaining effective vibrations for power generation. The circumferential arrangement improves power generation efficiency, eliminating the need for additional power supply. It is suitable for various operating conditions, including conventional, low-temperature, high-temperature, high-vibration, underground, and overhead applications. The electrolyte formula can be flexibly adjusted, covering a wide range of oil and gas pipeline applications.

[0050] Example 2: In the above solution, the elastic buffer layer 160 absorbs vibration during use. However, after prolonged use, the elastic buffer layer 160, operating in a vibration and electrolyte environment, will inevitably age, fatigue, or corrode, leading to the complete failure of the device. Therefore, the solution in Example 1 is improved, such as... Figures 7-8 As shown: Installation port 123 is provided with a protective block 120 that runs vertically through it; The elastic buffer layer 160 is detachably installed inside the mounting port 123.

[0051] Specifically, after prolonged use or after a period of use, the elastic buffer layer 160 can be disassembled and replaced; and because the elastic buffer layer 160 is elastic, it can be easily inserted into the mounting opening 123.

[0052] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: By changing to a detachable structure, the elastic buffer layer 160 can be replaced individually without disassembling the entire complex protective component 100. This significantly reduces maintenance time, labor costs, and losses caused by production downtime. The detachable design makes periodic inspection and evaluation of the buffer layer's condition a simple routine maintenance procedure, allowing users to preventatively replace it before its performance significantly deteriorates, thus ensuring that the elastic buffer layer 160 is always in optimal working condition. This not only directly improves the stability of the vibration damping effect but also avoids the problem of a decrease in the overall vibration damping rate and accelerated wear of other components due to the failure of a single part, thereby extending the service life of the entire device and even the protected pipeline.

[0053] Example 3: In the above solution, a small amount of leaked electrolyte is adsorbed through the honeycomb-like pores on the surface of the elastic buffer layer 160, avoiding impact on the interlayer environment. However, the adsorption capacity of physical pores is limited, and the adsorbed liquid electrolyte may be flung out or seep out again under continuous vibration; furthermore, electrolyte retention in the honeycomb-like pores will accelerate material swelling, plasticization, or corrosion, leading to deterioration of its elasticity, strength, and other mechanical properties; therefore, the solution in Example 2 is improved, such as... Figure 9 As shown: The protective component 100 also includes a moisture-absorbing bag 190; The moisture-absorbing packs 190 are fixed inside the elastic buffer layer 160. The number of moisture-absorbing packs 190 is consistent with the number of honeycomb-shaped pores on the side of the elastic buffer layer 160 near the electrolyte chamber 121, and they correspond one-to-one.

[0054] The honeycomb-shaped pores on the surface of the elastic buffer layer 160 are connected to the moisture-absorbing pack 190; The moisture-absorbing pack 190 is filled with moisture-absorbing salt.

[0055] Specifically, when the electrolyte is adsorbed within the honeycomb-like pores on the surface of the elastic buffer layer 160, the internal electrolyte can come into contact with the hygroscopic salts inside the hygroscopic pack 190. This allows the infiltrated liquid electrolyte to be quickly converted into crystalline hydrates or firmly fixed within the salt's crystal lattice structure, achieving a qualitative change from physical adsorption to chemical fixation. This completely prevents the electrolyte from flowing back from the elastic buffer layer 160, thus avoiding contamination and affecting other components. Furthermore, the elastic buffer layer 160 material is kept as dry as possible, thereby slowing down its aging process.

[0056] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: The moisture-absorbing salt inside the moisture-absorbing pack 190 can chemically react with the infiltrated liquid electrolyte, converting it into crystalline hydrates or fixing it within the salt lattice. From physical adsorption to chemical fixation, this completely prevents the electrolyte from flowing back or seeping out of the elastic buffer layer 160, eliminating the risk of contamination to the interlayer environment and other internal components. The moisture-absorbing pack 190 quickly locks in moisture through chemical means, keeping the base material of the elastic buffer layer 160 as dry as possible. This effectively slows down the corrosion and aging process of the polymer material by the electrolyte, thereby extending the service life of the elastic buffer layer 160 itself and indirectly improving the durability and stability of its shock absorption performance.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multifunctional anti-corrosion and vibration-damping pipe, characterized in that, It includes a protective assembly (100), which includes a partition (110), a protective block (120), an electrolyte chamber (121), a corrosion-resistant component (130), a drying hood (140), an elastic buffer layer (160), a vibration generating component (170), and a power supply component (180). An electrolyte chamber (121) is opened on the upper side of the protective block (120), and the electrolyte chamber (121) is filled with electrolyte; The upper end of the protective block (120) is fixed to the lower side of the partition (110), and the lower end of the drying hood (140) is fixed above the partition (110); The corrosion-resistant component (130) is installed inside the electrolyte chamber (121); An elastic buffer layer (160) is disposed inside the protective block (120), and the elastic buffer layer (160) is located on the side of the electrolyte chamber (121); Both the vibration generator (170) and the power supply unit (180) are housed inside the drying hood (140).

2. The multifunctional anti-corrosion and vibration-damping pipeline according to claim 1, characterized in that, The protective assembly (100) also includes a slag collection trough (122), a positioning plate (150), and a threaded hole (151). A slag collection tank (122) is provided on the bottom side of the electrolyte chamber (121), and the slag collection tank (122) is provided through the electrolyte chamber (121); The slag collection trough (122) is sealed with a plug; There are two positioning plates (150) and two threaded holes (151), and they correspond one to one. The positioning plate (150) is symmetrically fixed on both sides of the protective block (120), and the positioning plate (150) has a through threaded hole (151). The threaded hole (151) allows a bolt to pass through for securing the device; The bottom side of the electrolyte chamber (121) is inclined toward the slag collection tank (122).

3. A multifunctional anti-corrosion and vibration-damping pipeline according to claim 2, characterized in that, The partition (110), protective block (120), drying hood (140) and positioning plate (150) are made of reinforced engineering plastic.

4. A multifunctional anti-corrosion and vibration-damping pipeline according to claim 3, characterized in that, The corrosion-resistant component (130) includes a silver chloride reference electrode (131) and a magnesium alloy anode rod (132). The silver chloride reference electrode (131) and the magnesium alloy anode rod (132) are both disposed in the electrolyte chamber (121); The silver chloride reference electrode (131) and the magnesium alloy anode rod (132) are both completely immersed in the electrolyte filling the electrolyte chamber (121); The silver chloride reference electrode (131) has only its tip exposed, while the rest is covered with a polytetrafluoroethylene insulating sleeve. The magnesium alloy anode rod (132) is covered with a glass fiber reinforced polyamide anti-displacement sleeve, and the bottom of the magnesium alloy anode rod (132) is lower than the lowest liquid level of the electrolyte.

5. A multifunctional anti-corrosion and vibration-damping pipeline according to claim 4, characterized in that, The partition (110), protective block (120), electrolyte chamber (121), and drying hood (140) are all L-shaped; The protective assembly (100) also includes a mounting port (123); The mounting port (123) is L-shaped. The mounting port (123) is opened on the protective block (120). There are two mounting ports (123), which are respectively located on both sides of the electrolyte chamber (121). There are two elastic buffer layers (160), which correspond to two mounting ports (123) respectively; The elastic buffer layer (160) is L-shaped and is disposed inside the mounting port (123); The surface of the elastic buffer layer (160) has multiple honeycomb-shaped pores arranged in an array. The honeycomb-shaped pores on the surface of the elastic buffer layer (160) are used to absorb a small amount of leaked electrolyte.

6. A multifunctional anti-corrosion and vibration-damping pipeline according to claim 5, characterized in that, The vibration power generation component (170) includes a permanent magnet (171), a coil (172), a coil mounting slot (173), a potential sensor (174), and a wire (175). The drying hood (140) has an inverted U-shaped cross-section; The potential sensor (174) is fixed on the upper side of the partition (110), and the potential sensor (174) is located at the L-shaped corner of the partition (110); The potential sensor (174) is electrically connected to the silver chloride reference electrode (131); The permanent magnet (171) and the coil mounting slot (173) are both fixed to the upper side of the partition (110); There are multiple permanent magnets (171) and multiple coil mounting slots (173), and multiple permanent magnets (171) and multiple coil mounting slots (173) are arranged sequentially and at intervals on the side of the partition (110); The number of coils (172) is the same as the number of coil mounting slots (173), and they correspond one-to-one. The coils (172) are set in the coil mounting slots (173). The coil (172) is connected to the power supply unit (180) via a wire (175); The coil (172) is arranged in a ring along the inner side of the drying hood (140).

7. A multifunctional anti-corrosion and vibration-damping pipeline according to claim 6, characterized in that, The power supply unit (180) includes a battery (181) and an energy storage module (182). The battery (181) and energy storage module (182) are fixed to the upper side of the separator (110); The wire (175) is connected to the battery (181), and the battery (181) is connected to the energy storage module (182); The battery (181) is electrically connected to the potential sensor (174); The output terminal of the battery (181) is connected to the magnesium alloy anode (132).

8. A multifunctional anti-corrosion and vibration-damping pipeline according to claim 7, characterized in that, The energy storage module (182) is used to collect the electrical energy generated by the vibration of the coil (172); The energy storage module (182) can replace the power supply when the battery (181) is low on power, and at the same time store excess energy.

9. A multifunctional anti-corrosion and vibration-damping pipeline according to claim 8, characterized in that, The mounting port (123) is equipped with a protective block (120) that runs vertically through it; The elastic buffer layer (160) is removably disposed within the mounting port (123).

10. A multifunctional anti-corrosion and vibration-damping pipeline according to claim 9, characterized in that, The protective component (100) also includes a moisture-absorbing bag (190); The moisture-absorbing packs (190) are fixed inside the elastic buffer layer (160). The number of moisture-absorbing packs (190) is consistent with the number of honeycomb-shaped pores on the side of the elastic buffer layer (160) near the electrolyte chamber (121), and they correspond one-to-one. The honeycomb-shaped pores on the surface of the elastic buffer layer (160) are connected to the moisture-absorbing pack (190); The moisture-absorbing pack (190) is filled with moisture-absorbing salt.

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