Reactor for protecting barrel based on sacrificial anode method and use method of reactor

Abstract

The invention relates to the technical field of production devices of sponge titanium, and provides a reactor for protecting a barrel based on a sacrificial anode method and a use method of the reactor, a reactor flange is arranged at the top of the barrel, and the reactor flange is used for connecting different pipelines or equipment parts; the lifting lug is arranged at the lower end of the outer side of the barrel, one end of the external chain is connected with the lifting lug, and one end of the external chain far away from the barrel is grounded; the cathode of the low-voltage power supply is connected with the reactor flange through a first power line; the anode of the low-voltage power supply is connected with the auxiliary anode through a second power line; and the auxiliary anode is used for enabling external cathode current to flow from the anode to a protected body through the medium to form a current loop. By adopting a forced current and sacrificial anode dual protection mechanism, the damage of electrochemical corrosion to the titanium reactor shell can be effectively prevented, the forced current protection ensures that the reactor keeps a proper negative potential through an external low-voltage power supply, and the loss of electrons from the metal surface is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of titanium sponge production devices, and particularly relates to a reactor for protecting a cylinder body based on the sacrificial anode method and a using method thereof. Background Art

[0002] At present, most domestic and foreign industrial production of titanium sponge uses the Koll method to prepare titanium sponge. The production principle is to reduce the introduced liquid TiCl4 with hot liquid magnesium at 800 - 850°C in a closed container to generate titanium sponge and magnesium chloride. The closed container mainly includes a reactor, a large cover, a gasket, and a sieve plate.

[0003] The cylinder body of the titanium sponge reduction and distillation reactor used mainly operates under the conditions of high temperature (up to about 1050°C), vacuum (the external vacuum degree of the reactor cylinder body is lower than the internal), and long time (the complete furnace cycle is about 15 days). Generally speaking, the service life of the reactor cylinder body is about 20 times, and the scrapping standards are mainly judged by two scales: wall thickness and length.

[0004] During the reduction and distillation process of the reactor, the bottom of the reactor not only has to bear the weight of the titanium ingot and the sieve plate at all times, but also is heated by the high temperature of the bottom resistance band. Due to the combined action of gravity and thermal deformation, the axis of the reactor cylinder body generates thermal expansion and elongation; during the water jacket cooling stage, when the reactor cylinder body cools down, the elongation generated due to high temperature creep is permanently retained. At the same time, the reversible elongation originally caused by thermal expansion cannot be completely restored due to the combined action of the self - weight of the cylinder body and the weight of the material and becomes a permanent elongation.

[0005] The creep elongation on the axis of the reactor also means that the cross - sectional area of the reactor cylinder body shrinks. In addition, due to the long - term soaking and cooling of the cold end and the water jacket stage, the outer shell of the reactor undergoes electrochemical corrosion, resulting in further thinning of the reactor wall thickness. When the wall thickness is reduced to the designed limit size, the reactor fails and is scrapped, greatly reducing the service life of the reactor cylinder body.

[0006] As Figure 1 shown, the commonly used methods for reducing electrochemical corrosion include the impressed current method and the sacrificial anode method. An external DC power supply is connected to apply an external current to the surface of the metal structure to be corroded. The structure to be protected becomes the cathode, thereby suppressing the electron migration of metal corrosion and avoiding or weakening corrosion. The sacrificial anode method is to connect a metal that is more easily corroded to the surface of the metal to be protected as a "sacrifice". When the external environment causes corrosion, it will preferentially corrode the sacrificial anode to protect the original metal from damage.

[0007] Publication No.: CN102899671B. An anti-corrosion method for a high-temperature and high-pressure pyrolysis device for high-concentration saline organic wastewater. The anode uses an aluminum-manganese alloy perforated pipe, which is insulated from the device matrix with an insulating gasket. The cathode is connected to a zinc-chromium alloy coating by a wire. The anode, cathode, and reference electrode are combined in a potentiostat to control the output current and voltage, and a grounding drainage device is used to introduce the current into the ground. The impressed current cathodic protection metal coating is adopted, which greatly slows down the corrosion rate of the device matrix. However, the reactor of titanium sponge needs to be moved back and forth and circulated between the cold and hot ends. Therefore, the spraying scheme in this solution has too strict requirements for materials, too high costs, and inconvenient disassembly of the protection device, affecting the production of the next process.

[0008] Therefore, it is urgent to design a new reactor cylinder and its usage method to solve the problems of too short service life and inconvenient use of the reactor in the existing technology. Summary of the Invention

[0009] In view of this, the present invention aims to propose a reactor for protecting a cylinder based on the sacrificial anode method and its usage method to solve the problems of too short service life and inconvenient use of the reactor in the existing technology.

[0010] To avoid the electrochemical corrosion of the reactor when it is cooled by water at the cold end, a sacrificial anode chain is connected to the lifting lug of the reactor. According to the principle of the primary battery, the sacrificial anode chain is made of a metal material with relatively high activity, such as zinc, magnesium, or aluminum alloy. At the cost of the sacrificial anode being corroded, industrial circulating water is used as a medium to transfer current, so as to achieve the purpose of protecting the stainless steel shell of the reactor cylinder from being corroded, extending the service life of the reactor, and reducing production costs.

[0011] The technical solution of the present invention is realized as follows:

[0012] A reactor for protecting a cylinder based on the sacrificial anode method includes a reactor flange, a cylinder, a lifting lug, an external chain, a low-voltage power supply, an auxiliary anode, a first power line, and a second power line.

[0013] The reactor flange is arranged at the top of the cylinder. The reactor flange is used to connect different pipelines or equipment components and ensure the sealing performance of these connection parts.

[0014] The lifting lug is arranged at the lower end outside the cylinder. The lifting lug is used as the suspension point of the reactor, facilitating the installation, disassembly, or movement operation and hanging the external chain.

[0015] One end of the external chain is connected to the lifting lug, and the end of the external chain far from the cylinder is grounded.

[0016] The negative electrode of the low-voltage power supply is connected to the reactor flange through the first power line, and the positive electrode of the low-voltage power supply is connected to the auxiliary anode through the second power line;

[0017] The auxiliary anode is used to enable the externally applied cathodic current to flow from the anode through the medium to the protected body, forming a current loop.

[0018] Further, the reactor flange is made of a carbon steel plate by cutting and then using a welding process.

[0019] Further, the cylinder body is made of a composite plate of stainless steel and carbon steel.

[0020] Further, the lifting lug includes a fixing part and a connecting part. The fixing part is used to connect the lower end of the outer side of the cylinder body, and the connecting part is used to connect the externally added chain.

[0021] Further, the outer shape of the edge of the fixing part is the same as the outer shape of the lower end of the outer side of the cylinder body.

[0022] Further, the connecting part is provided with the connecting hole for movably connecting with the externally added chain.

[0023] Further, the externally added chain includes a plurality of lock rings, and the plurality of lock rings are connected by an interlocking connection method to form a strong and flexible chain structure.

[0024] Further, the low-voltage power supply includes a power transformer and a bridge rectifier. The bridge rectifier includes a plurality of rectifier diodes connected in a bridge type. An insulating plastic is provided outside the bridge rectifier. The bridge rectifier is used to convert the alternating current of the original power supply voltage into a stable direct current and control the magnitude of the current output to the surface of the cylinder body.

[0025] Further, the auxiliary anode is one of high-silicon cast iron, graphite, steel, or flexible anode.

[0026] A method for using a reactor for protecting a cylinder body based on the sacrificial anode method, based on any one of the reactors for protecting a cylinder body based on the sacrificial anode method described above, includes the following specific steps:

[0027] S1: Preparation work: Check whether all components are intact. The components include the reactor flange, the cylinder body, the lifting lug, the externally added chain, the low-voltage power supply and its supporting power transformer and bridge rectifier, the auxiliary anode, etc., and ensure that all connection parts are firmly reliable, especially the connection between the lifting lug and the cylinder body and the connection between the low-voltage power supply and the reactor flange and the auxiliary anode;

[0028] S2: Electrical connection: Connect the negative pole of the low-voltage power supply to the reactor flange through the first power cord, ensuring a firm and good contact. Connect the positive pole of the low-voltage power supply to the auxiliary anode through the second power cord, also ensuring a firm connection.

[0029] S3: Start the low-voltage power supply: Turn on the low-voltage power supply, observe the current output situation, ensure that the current is stable and meets the expected value, and adjust the output voltage and current of the low-voltage power supply to make the surface of the cylinder reach the required negative potential range.

[0030] S4: Monitoring and maintenance: Regularly check the potential of the cylinder to ensure that it remains within the set range. Monitor the state of the external sacrificial chain, and promptly replace the parts that have been completely consumed by corrosion to ensure the continuous effectiveness of the sacrificial anode function. Regularly inspect and maintain the entire system, including cleaning, tightening loose parts, replacing damaged components, etc., to ensure the long-term stable operation of the system.

[0031] Compared with the prior art, a reactor for protecting a cylinder based on the sacrificial anode method and its usage method of the present invention have the following advantages:

[0032] 1. By adopting a dual protection mechanism of impressed current and sacrificial anode, the present invention can effectively prevent the damage caused by electrochemical corrosion to the titanium reactor shell. The impressed current protection ensures that the reactor maintains an appropriate negative potential through an external low-voltage power supply, reducing the loss of electrons from the metal surface; while the magnesium sacrificial chain suspended at the bottom lifting lug of the reactor acts as a sacrificial anode, preferentially corroding to protect the stainless steel shell of the reactor cylinder from damage. This dual protection significantly extends the service life of the reactor and reduces the production interruption caused by frequent replacement of the reactor.

[0033] 2. By designing a dedicated anti-corrosion device, including components such as a power transformer, a bridge rectifier, and an auxiliary anode, the present invention realizes precise potential control of the outer surface of the reactor, further enhancing the anti-corrosion effect. This device can not only adjust the output current to adapt to different corrosion environments but also be flexibly adjusted according to actual needs to ensure the best anti-corrosion performance. In addition, using a composite plate to manufacture the reactor cylinder not only improves the high-temperature resistance but also increases the structural strength, helping to slow down the occurrence of tensile thinning, thereby enhancing the overall stability and reliability of the equipment.

[0034] 3. The present invention utilizes the design that the sacrificial anode chains are easy to replace, enabling convenient maintenance during long-term operation and ensuring the continuous effectiveness of the anti-corrosion system. After the magnesium chains are consumed, they can be replaced at any time without shutting down for major repairs or complex operations, greatly reducing the maintenance cost and time consumption. At the same time, due to the adoption of an efficient anti-corrosion strategy, the problem of local failure that may exist in traditional anti-corrosion coatings is avoided, providing a safer and more reliable guarantee for the production of titanium sponge, improving the overall production efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1 Schematic diagrams of the impressed current method and the sacrificial anode method in the present invention;

[0037] Figure 2 Front view of the device in the present invention;

[0038] Figure 3 Axonometric view of the device in the present invention;

[0039] DESCRIPTION OF THE REFERENCE NUMERALS:

[0040] 1. Reactor flange; 2. Cylinder body; 3. Lifting lug, 301. Fixed part; 302. Connecting part; 303. Connecting hole; 4. External chain; 401. Lock ring; 5. Low-voltage power supply; 6. Auxiliary anode; 7. First power line; 8. Second power line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention will be described in detail below with reference to specific drawings.

[0042] It should be noted that all the terms for indicating directions and positions in the present invention, such as: "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "inside", "outside", "top", "bottom", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection situation between components in a specific state, and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0043] In the description of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0045] As Figure 2-3 shown, the first object of the present invention is to disclose a reactor for protecting a cylinder body based on the sacrificial anode method, including: a reactor flange 1, a cylinder body 2, a lifting lug 3, an external chain 4, a low-voltage power supply 5, an auxiliary anode 6, a first power line 7, and a second power line 8.

[0046] The reactor flange 1 is arranged at the top of the cylinder body 2. The reactor flange 1 is used to connect different pipelines or equipment components and ensure the sealing performance of these connection points.

[0047] The lifting lug 3 is arranged at the lower outer side of the cylinder body 2. The lifting lug 3 is used as a suspension point of the reactor to facilitate installation, disassembly, or movement operations and to suspend the external chain 4.

[0048] One end of the external chain 4 is connected to the lifting lug 3, and the end of the external chain 4 away from the cylinder body 2 is grounded.

[0049] The negative pole of the low-voltage power supply 5 is connected to the reactor flange 1 through the first power line 7, and the positive pole of the low-voltage power supply 5 is connected to the auxiliary anode 6 through the second power line 8.

[0050] The auxiliary anode 6 is used to enable the external cathodic current to flow from the anode through the medium to the protected body, forming a current loop.

[0051] The negative electrode of the low-voltage power supply 5 is connected to the reactor flange 1 through the first power line 7, making the reactor the cathode, inhibiting the loss of electrons from the metal surface, thereby reducing or preventing corrosion. The additional chain 4 is suspended on the lifting lug 3 and grounded at the end far from the cylinder body 2, serving as a sacrificial anode to corrode preferentially and protecting the reactor cylinder body 2 from damage. The reactor flange 1 is arranged at the top of the cylinder body 2, used to connect different pipelines or equipment components and ensure the sealing performance of these connections to prevent gas or liquid leakage. The lifting lug 3 is arranged on the outer side of the lower end of the cylinder body 2, which not only serves as a suspension point for convenient installation, disassembly or movement operations, but also is used to suspend the additional chain 4 to provide additional anti-corrosion protection. The additional chain 4 is convenient for adjusting the length or replacing damaged parts as needed, improving the convenience and efficiency of maintenance. The auxiliary anode 6 is connected to the positive electrode of the low-voltage power supply 5 through the second power line 8 to form a current loop, ensuring the effective transmission and distribution of current and enhancing the overall anti-corrosion effect.

[0052] This setting combines the two methods of impressed current cathodic protection and sacrificial anode protection to form a more comprehensive and effective anti-corrosion system, significantly reducing the failure risk of the cylinder body 2 caused by electrochemical corrosion, extending the service life of the equipment, improving the stability and safety in the production process, reducing the downtime caused by equipment failures, and enhancing the overall production efficiency.

[0053] Specifically, the reactor flange 1 is made by cutting and combining carbon steel plates.

[0054] The reactor flange 1 uses carbon steel plates as raw materials and is manufactured through precision cutting and subsequent combination processes. This manufacturing method ensures that the reactor flange 1 has sufficient mechanical strength and good sealing performance. The specific steps include: material selection, choosing high-quality carbon steel plates, which provide sufficient strength while having good processing performance; precision cutting, using advanced cutting equipment such as laser cutters or plasma cutters to cut the carbon steel plates into the required shapes and sizes to ensure high precision and consistency; the combination process can combine each part together through welding, bolt connection, riveting or other connection methods to form a complete flange structure.

[0055] The carbon steel plate has high mechanical strength, can withstand large pressures and weights, ensuring that the reactor flange 1 is not easily damaged during long-term use, and can also effectively control production costs. The processed reactor flange 1 ensures the flatness and smoothness of the surface, contributing to better sealing effects and reducing the leakage risk.

[0056] This setting can significantly improve the overall stability and service life of the equipment, ensuring the safety and efficiency of the production process.

[0057] Specifically, the cylinder body 2 is made of a composite plate of stainless steel and carbon steel, enabling the composite plate to withstand high temperatures and provide higher strength to slow down tensile thinning.

[0058] The cylinder body 2 is made of a composite plate of stainless steel and carbon steel. This composite material design aims to combine the advantages of stainless steel and carbon steel, enabling the cylinder body 2 to not only withstand high temperatures but also possess high mechanical strength, thereby effectively slowing down the tensile thinning phenomenon caused by thermal expansion and other stresses during use. Stainless steel has good oxidation resistance and high-temperature resistance, and can maintain structural stability in high-temperature environments, not easily oxidize or deform, ensuring that the cylinder body 2 can still maintain its integrity under high-temperature operating conditions, such as the reduction and distillation process in titanium sponge production, and extending the service life of the equipment. Carbon steel has high mechanical strength and tensile strength, can withstand large pressure and weight loads, improves the overall structural strength of the cylinder body 2, enables it to cope with the pressure of internal materials and external operating forces, and reduces the risk of deformation caused by mechanical stress. The composite method can be explosive cladding, rolling cladding, or adhesive bonding, etc. By optimizing the design and manufacturing process of the composite plate, adjusting the thickness ratio, structural strength, etc. of the stainless steel layer and the carbon steel layer, the cylinder body 2 can still maintain good shape and dimensional stability after experiencing multiple thermal cycles. It effectively slows down the tensile thinning phenomenon caused by thermal expansion and contraction due to repeated heating and cooling, avoids excessive reduction of the wall thickness of the cylinder body 2, and thus extends the service life of the equipment.

[0059] This setting significantly improves the durability and reliability of the cylinder body 2, and also achieves an efficient and economical solution through reasonable cost control.

[0060] Specifically, the lifting lug 3 includes a fixing part 301 and a connecting part 302. The fixing part 301 is used to connect the lower end of the outer side of the cylinder body 2, and the connecting part 302 is used to connect the external chain 4.

[0061] The fixing part 301 is used to firmly connect to the lower end of the outer side of the cylinder body 2. Usually, the fixing part 301 is tightly combined with the cylinder body 2 by welding or other high-strength connection methods, providing a solid foundation for the entire lifting lug 3, ensuring that it can withstand the weight and tension from the external chain and the suspended object, such as the sacrificial anode chain, and will not easily loosen or fall off. The connecting part 302 is used to connect the external chain 4. It provides a reliable hanging point, enabling the external chain 4 to be easily installed and replaced, facilitating maintenance and replacement operations, helping to prevent the reactor cylinder body 2 from being affected by electrochemical corrosion, and extending the service life of the equipment.

[0062] This setting ensures that the lifting lug 3 does not displace or fall off during the entire operation, improving the overall safety of the system, simplifying the installation and replacement process of the external chain 4, reducing downtime, improving maintenance efficiency. The position of the lifting lug 3 is reasonably designed, enabling the sacrificial anode chain to effectively cover the key areas of the reactor, enhancing the effect of anti-corrosion protection.

[0063] Preferably, the cross-section of the lifting lug 3 is approximately a right-angled triangle.

[0064] The right-angled triangle cross-section can provide higher structural rigidity and stability. Its vertical side provides strong support, while the hypotenuse enhances the anti-bending moment ability, making the lifting lug 3 not easily deformed or broken when bearing the tension of the external chain 4. It helps to more evenly disperse the stress applied on the lifting lug 3, avoiding stress concentration at a certain point, thus reducing the risk of material fatigue and potential crack formation.

[0065] Preferably, the edge profile of the fixing part 301 is the same as the outer shape of the lower end of the cylinder body 2.

[0066] The edge profile of the fixing part 301 being the same as the outer shape of the lower end of the cylinder body 2 ensures that the lifting lug 3 can closely fit on the surface of the cylinder body 2, avoiding any gaps or misalignments. This makes the force applied on the lifting lug 3 more evenly distributed on the cylinder body 2, reducing the possibility of local stress concentration, enhancing the connection strength between the lifting lug 3 and the cylinder body 2, and making the lifting lug more stable when bearing external tension and not easily deformed or fallen off.

[0067] Preferably, the connecting part 302 is provided with a connecting hole 303 for movably connecting with the external chain 4.

[0068] By providing the connecting hole 303 in the connecting part 302, the external chain 4 can be conveniently and movably connected to the lifting lug 3, ensuring a firm connection of the external chain 4 and preventing accidental detachment during operation.

[0069] Specifically, the external chain 4 includes a plurality of lock rings 401, and the plurality of lock rings 401 are connected by an interlocking connection method to form a strong and flexible chain structure. The connecting hole 303 can select an appropriate chain length and connection method according to different working conditions, enhancing the adaptability and flexibility of the system.

[0070] This setting makes the installation and disassembly of the external chain 4 more simple and fast, reducing downtime and improving work efficiency.

[0071] Specifically, the low-voltage power supply 5 includes a power transformer and a bridge rectifier. The bridge rectifier is formed by connecting multiple rectifier diodes in a bridge configuration and encapsulated with external insulating plastic, converting the original AC power voltage into a stable DC power voltage and controlling the magnitude of the current output to the surface of the cylinder body 2.

[0072] The external current is called the cathode current. When the external current flows through the surface of the reactor cylinder 2, electrons will be transported from the power source to the steel surface, making the stainless-steel surface the cathode, thus inhibiting the occurrence of the corrosion reaction.

[0073] This setting uses multiple rectifier diodes for bridge connection, which can achieve efficient AC-DC conversion, reduce energy loss. Through the combination of a transformer and a rectifier, a stable DC power supply can be provided to ensure that the output current is not affected by grid fluctuations, maintaining effective protection for the cylinder 2. Using a bridge rectifier encapsulated with insulating plastic improves the safety of the equipment, avoiding short circuits or other electrical faults caused by external environmental factors and facilitating installation and maintenance.

[0074] Specifically, the auxiliary anode 6 can be one of high-silicon cast iron, graphite, steel, or flexible anode.

[0075] The auxiliary anode 6 is a conductor that introduces the protection current from the power source into the medium in the impressed-current cathodic protection system. The material of the auxiliary anode 6 needs to have a small anodic polarization and a large drainage volume under high current density.

[0076] The high-silicon cast iron anode has excellent corrosion resistance, can work stably for a long time, reduce the replacement frequency, and has a low cost while providing good protection effects.

[0077] Graphite is an excellent conductive material, can effectively conduct current, has excellent corrosion resistance and high stability, reducing the maintenance requirements.

[0078] Steel materials are generally easily available and have low manufacturing costs.

[0079] The flexible anode is usually made of conductive polymer or other flexible materials, can be bent or adjusted according to needs to adapt to complex geometric structures, and can ensure uniform current distribution on the entire protected surface, avoiding problems of local overprotection or underprotection.

[0080] This setting can significantly improve the anti-corrosion efficiency of the reactor, extend the service life of the equipment, and reduce the maintenance cost by reasonably selecting the material of the auxiliary anode 6.

[0081] Another object of the present invention is to disclose a usage method of a reactor for protecting a cylinder based on the sacrificial anode method, including the following specific steps:

[0082] S1: Preparation work: Check whether all components are intact;

[0083] The components include a reactor flange 1, a cylinder body 2, a lifting lug 3, an external chain 4, a low-voltage power supply 5 and its supporting power transformer and bridge rectifier, an auxiliary anode 6, etc., ensuring that all connection parts are fastened and reliable, especially the connection between the lifting lug 3 and the cylinder body 2 and the connections between the low-voltage power supply 5 and the reactor flange 1 and the auxiliary anode 6.

[0084] Prevent safety hazards and corrosion protection failure caused by component damage or poor connection.

[0085] S2: Electrical connection: Connect the negative pole of the low-voltage power supply 5 to the reactor flange 1 through the first power line 7, ensuring a firm and good contact connection. Connect the positive pole of the low-voltage power supply 5 to the auxiliary anode 6 through the second power line 8, also ensuring a firm connection;

[0086] Establish a stable current path to ensure that the current can be effectively transmitted to the surface of the cylinder body 2 to achieve impressed current cathodic protection.

[0087] S3: Start the low-voltage power supply 5: Turn on the low-voltage power supply 5, observe the current output situation, ensure that the current is stable and meets the expected value, and adjust the output voltage and current of the low-voltage power supply 5 to make the surface of the cylinder body 2 reach the required negative potential range;

[0088] Precisely control the current output to ensure that the surface of the cylinder body 2 obtains an appropriate protection potential to prevent electrochemical corrosion.

[0089] S4: Monitoring and maintenance: Regularly check the potential of the cylinder body 2 to ensure that it remains within the set range. Monitor the state of the external chain 4 and promptly replace the parts that have been consumed due to corrosion to ensure the continuous effectiveness of the sacrificial anode function. Regularly inspect and maintain the entire system, including cleaning, tightening loose parts, replacing damaged components, etc., to ensure the long-term stable operation of the system;

[0090] Prolong the service life of the equipment, reduce the risk of failures caused by corrosion, and ensure the long-term stable operation of the system.

[0091] This setting combines the impressed current cathodic protection and sacrificial anode protection methods, providing multi-level anti-corrosion protection. By adjusting the output voltage and current of the low-voltage power supply 5, the protection potential on the surface of the cylinder body 2 can be precisely controlled, significantly improving the corrosion resistance of the equipment, ensuring the high reliability and safety of the system, reducing the occurrence of unexpected failures, prolonging the overall service life of the equipment, and reducing the replacement frequency and maintenance costs.

[0092] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A reactor for protecting a cylinder body based on the sacrificial anode method, characterized in that, It includes a reactor flange (1), a cylinder body (2), a lifting lug (3), an external chain (4), a low-voltage power supply (5), an auxiliary anode (6), a first power line (7), and a second power line (8). The reactor flange (1) is arranged at the top of the cylinder body (2). The reactor flange (1) is used to connect different pipelines or equipment components and ensure the sealing performance of these connection parts. The lifting lug (3) is arranged at the lower end of the outer side of the cylinder body (2). The lifting lug (3) is used as a suspension point of the reactor, facilitating installation, disassembly, or movement operations and suspending the external chain (4). One end of the external chain (4) is connected to the lifting lug (3), and the end of the external chain (4) far from the cylinder body (2) is grounded. The negative pole of the low-voltage power supply (5) is connected to the reactor flange (1) via the first power line (7), and the positive pole of the low-voltage power supply (5) is connected to the auxiliary anode (6) via the second power line (8). The auxiliary anode (6) is used to enable the externally applied cathodic current to flow from the anode through the medium to the protected body, forming a current loop.

2. The reactor for protecting a cylinder based on the sacrificial anode method according to claim 1, wherein The reactor flange (1) is made of a carbon steel plate after cutting and by using a welding process.

3. The reactor for protecting a cylinder based on the sacrificial anode method according to claim 1, wherein The cylinder body (2) is made of a composite plate of stainless steel and carbon steel.

4. The reactor for protecting the cylinder body based on the sacrificial anode method according to claim 1, characterized in that, The lifting lug (3) includes a fixing part (301) and a connecting part (302). The fixing part (301) is used to connect the lower end of the outer side of the cylinder body (2), and the connecting part (302) is used to connect the external chain (4).

5. The reactor for protecting a cylinder based on the sacrificial anode method according to claim 4, wherein, The outer shape of the edge of the fixing part (301) is the same as the outer shape of the lower end of the outer side of the cylinder body (2).

6. The reactor for protecting the cylinder body based on the sacrificial anode method according to claim 4, wherein The connecting part (302) is provided with a connecting hole (303) for movably connecting with the external chain (4).

7. The reactor for protecting a cylinder based on the sacrificial anode method according to claim 1, wherein, The external chain (4) includes a plurality of lock rings (401). The plurality of lock rings (401) are connected by an interlocking connection method to form a strong and flexible chain structure.

8. The reactor for protecting a cylinder based on the sacrificial anode method according to claim 1, characterized in that, The low-voltage power supply (5) includes a power transformer and a bridge rectifier. The bridge rectifier includes multiple bridge-connected rectifier diodes. An insulating plastic is arranged outside the bridge rectifier. The bridge rectifier is used to convert the alternating current of the original power supply voltage into a stable direct current and control the magnitude of the current output to the surface of the cylinder body (2).

9. The reactor for protecting a cylinder based on the sacrificial anode method according to claim 1, wherein, The auxiliary anode (6) is one of high-silicon cast iron, graphite, steel, or flexible anode.

10. A method for using a reactor that protects a cylinder body based on the sacrificial anode method, characterized in that, For the reactor for protecting the cylinder body based on the sacrificial anode method according to any one of claims 1-9, it includes the following specific steps: S1: Preparation work: Check whether all components are intact. The components include the reactor flange (1), the cylinder body (2), the lifting lug (3), the external chain (4), the low-voltage power supply (5) and its supporting power transformer and bridge rectifier, the auxiliary anode (6), etc., and ensure that all connection parts are firmly and reliably connected, especially the connection between the lifting lug (3) and the cylinder body (2) and the connections between the low-voltage power supply (5) and the reactor flange (1) and the auxiliary anode (6). S2: Electrical connection: Connect the negative pole of the low-voltage power supply (5) to the reactor flange (1) through the first power cord (7), ensuring a firm and good contact. Connect the positive pole of the low-voltage power supply (5) to the auxiliary anode (6) through the second power cord (8), also ensuring a firm connection. S3: Start the low-voltage power supply: Turn on the low-voltage power supply (5), observe the current output, ensure that the current is stable and meets the expected value, and adjust the output voltage and current of the low-voltage power supply (5) to make the surface of the cylinder body (2) reach the required negative potential range. S4: Monitoring and maintenance: Regularly check the potential of the cylinder body (2) to ensure that it remains within the set range. Monitor the state of the external chain (4), and timely replace the parts that are exhausted due to corrosion to ensure the continuous effectiveness of the sacrificial anode function. Regularly inspect and maintain the entire system, including cleaning, tightening loose parts, replacing damaged components, etc., to ensure the long-term stable operation of the system.

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