A valve overhauling and dismounting device for a thermal power plant

Abstract

The present application relates to the technical field of power plant equipment maintenance, and provides a valve maintenance and dismounting device for a thermal power plant, which comprises a mounting seat, mounting plates are arranged on the top of the mounting seat, a magnetic auxiliary supporting device is fixedly arranged on the middle of the upper end of the mounting seat between the two mounting plates, transmission members are arranged in the middle of the two mounting plates, clamping members are slidably arranged on the inner side surfaces of the two mounting plates, and the two clamping members are respectively threadedly connected with the two transmission members. The clamping members are driven to slide by the transmission members, so that the automatic adjustment of the clamping width of different specifications of valves is realized. The magnetic auxiliary supporting device provides auxiliary support, so that falling or collision caused by the shift of the center of gravity during the dismounting process is prevented, and the safety and efficiency of the maintenance operation are improved.

Description

Technical Field

[0001] This invention belongs to the field of power plant valve maintenance technology, and relates to a valve maintenance and disassembly device for thermal power plants. Background Technology

[0002] In the piping systems of thermal power plants, valves, as critical components, play vital roles in the opening and closing, flow control, and regulation of media transport. Their structural performance directly affects the sealing performance and operational safety of the piping system. Because valves are typically installed at critical pipeline nodes and are difficult to replace, it is essential to ensure they possess excellent sealing performance and structural robustness during production and use. During long-term operation, valves are subjected to the continuous effects of different media, temperatures, and pressures, making them prone to corrosion, wear, and even localized deformation, affecting their service life and safety performance. Therefore, regular inspection and maintenance of valves are particularly important.

[0003] However, in actual valve maintenance and disassembly operations, traditional clamping tools often struggle to adapt to complex and ever-changing on-site conditions, revealing significant shortcomings: First, traditional disassembly equipment has poor adaptability. These tools mostly use rigid structures with fixed dimensions and angles, while there are many types of valves in thermal power plants, including gate valves, globe valves, ball valves, etc. After long-term operation, the valve body and flange surface often rust, deform or wear, making it difficult for traditional tools to effectively fit the valve surface, affecting the stability of clamping and the smooth progress of disassembly operations.

[0004] Secondly, the clamping force control of disassembly equipment lacks precision. Most traditional tools lack a force feedback mechanism, relying entirely on the operator's experience to judge the clamping force, which easily leads to problems of "clamping too loosely" or "clamping too tightly." Clamping too loosely causes the valve to wobble during disassembly, affecting work efficiency and potentially causing risks such as stripped bolts and valve body damage. Clamping too tightly, on the other hand, may exceed the yield strength of the valve material (especially alloys used in high-temperature and high-pressure environments), causing irreversible structural damage such as valve stem bending and flange cracking, seriously affecting the safety of subsequent valve use and increasing maintenance costs. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problems of poor adaptability and inaccurate clamping force of existing clamping tools, and to provide a valve maintenance and disassembly device for thermal power plants.

[0006] To achieve the above objectives, the present invention employs the following technical solution: This invention provides a valve maintenance and disassembly device for thermal power plants, including a mounting base. Mounting plates are provided on both sides of the top of the mounting base. A magnetic auxiliary support device is fixedly installed between the two mounting plates at the upper center of the mounting base. A transmission component is provided in the middle of the two mounting plates. Clamping components are slidably mounted on the inner surfaces of the two mounting plates, and the two clamping components are threadedly connected to the two transmission components. This solution achieves automatic adjustment and clamping of valves of different widths by driving the clamping components to slide relative to each other through the transmission components. Simultaneously, the magnetic auxiliary support device provides auxiliary support for the valves, effectively preventing them from falling or colliding during disassembly due to a shift in the center of gravity, thus improving operational safety.

[0007] In one embodiment, the clamping component includes a mechanical claw capable of automatically adjusting the clamping angle and force, the mechanical claw being adaptable to at least one valve structure among gate valves, globe valves, and ball valves. This embodiment, through automatic adjustment of the mechanical claw's angle and force, significantly improves the equipment's adaptability to valves of different structural types, solving the problem of the narrow applicability of traditional rigid clamping tools.

[0008] In one implementation, the clamping component incorporates a pressure sensor to monitor the clamping force in real time and issue an alarm signal when the clamping force exceeds the preset yield limit of the valve material. This implementation achieves visualization and precise control of the clamping process through real-time monitoring of the clamping force by the pressure sensor, effectively preventing valve body damage caused by excessive clamping force.

[0009] As one implementation, a controller connected to the pressure sensor signal is also included. This controller automatically stops the power output of the transmission component when the clamping force exceeds the yield limit. This implementation, through the controller's automatic shutdown protection, further ensures the safety of the valve during disassembly and prevents irreversible damage.

[0010] In one embodiment, the magnetic auxiliary support device is a strong magnetic base. This embodiment utilizes the strong attraction force of the strong magnetic base to firmly fix the valve body, and is particularly suitable for irregularly shaped or severely worn valves, thus enhancing the stability of the equipment.

[0011] In one embodiment, the two transmission components are respectively disposed in the middle of the two mounting plates, and drive the corresponding clamping components to slide relative to each other in the horizontal direction. This embodiment clarifies the driving direction of the transmission components, ensuring the smoothness of the movement of the clamping components and the centering accuracy.

[0012] In one embodiment, the clamping component and the transmission component are connected via a threaded screw structure to achieve precise adjustment of the clamping position. This embodiment uses the threaded screw structure to achieve fine-tuning and locking of the clamping position, ensuring the reliability of clamping.

[0013] In one embodiment, the mounting base is a flat plate structure with an anti-slip pad or fixing interface at its lower end for positioning the equipment on the work surface. This embodiment enhances the overall stability of the equipment and prevents it from shifting during disassembly.

[0014] In one embodiment, the surface of the clamping component is provided with an anti-slip pad or an elastic buffer layer to reduce damage to the valve body surface. This embodiment increases friction to prevent slippage through the anti-slip pad or elastic buffer layer, while also buffering the clamping force and protecting the valve body surface from scratches.

[0015] In one embodiment, the magnetic auxiliary support device is detachably mounted on the upper center of the mounting base to provide auxiliary support for irregularly shaped or severely worn valves. This embodiment, through its detachable design, improves the flexibility of the equipment, allowing for selection of whether or not to install the auxiliary support device based on actual operating conditions.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses a valve maintenance and disassembly device for thermal power plants. Through the combination of a mounting base, mounting plate, magnetic auxiliary support device, transmission components, and clamping parts, a compact and fully functional valve maintenance and disassembly device is formed. The magnetic auxiliary support device effectively enhances the stability of the equipment during operation. The cooperation between the transmission components and the clamping parts enables reliable clamping and disassembly of valves, improving the convenience and safety of maintenance operations. The clamping parts employ mechanical claws that can automatically adjust the clamping angle and force, and are adaptable to various common valve types, enhancing the versatility and adaptability of the equipment. It can automatically adjust the clamping method according to different valve structures, avoiding damage to the equipment or valves due to improper clamping.

[0017] Furthermore, by incorporating a pressure sensor and setting an alarm function in the clamping component, the clamping force can be monitored in real time, preventing plastic deformation or damage to the valve due to excessive clamping force, thereby improving the safety of the equipment during operation and its ability to protect the valve body.

[0018] Furthermore, the controller is linked with the pressure sensor to automatically stop the power output of the transmission component when the clamping force exceeds the yield limit of the valve material, thus realizing closed-loop control of the clamping force. This further improves the safety performance of the equipment and avoids valve damage accidents caused by operational errors or system failures.

[0019] Furthermore, the magnetic auxiliary support device uses a strong magnetic base, which can quickly and stably adhere to the metal working surface, improving the ease of installation and support reliability of the equipment under complex working conditions, and is especially suitable for on-site maintenance environments. Attached Figure Description

[0020] 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 on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a partially enlarged schematic diagram showing the connection relationship between the clamping component and the transmission component in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the magnetic auxiliary support device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the state when the clamping component of this invention clamps the gate valve according to an embodiment of the invention; Figure 5 This is a schematic diagram of the state when the clamping component of this invention clamps the ball valve; Figure 6 This is a logic block diagram of the control system according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the mounting base according to an embodiment of the present invention.

[0022] The components include: 1. mounting base; 2. mounting plate; 3. transmission components; 4. clamping components; and 5. magnetic auxiliary support device. Detailed Implementation

[0023] 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, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings: Example 1: like Figure 1As shown, this embodiment provides a valve maintenance and disassembly device for a thermal power plant. The device mainly includes a mounting base 1, mounting plates 2, transmission components 3, clamping components 4, and a magnetic auxiliary support device 5. The mounting base 1 serves as the load-bearing foundation of the entire device, and its shape can be adapted to the actual working environment. For example, it can be a flat structure for easy placement on the ground or workbench, or a box structure with counterweights or fixed interfaces to enhance stability. Mounting plates 2 are provided on both sides of the top of the mounting base 1, and the two mounting plates 2 are positioned opposite each other to form a working space for accommodating the valve to be maintained. Between the two mounting plates 2, a magnetic auxiliary support device 5 is fixedly installed in the middle of the upper end of the mounting base 1. This magnetic auxiliary support device 5 is located on the symmetrical center line of the two mounting plates 2, or in the middle of the travel distance of the two clamping components 4. This layout design is not arbitrary, but rather to construct a mechanical model of "clamping on both sides + support in the middle". When the valve to be disassembled is placed on the equipment, the main body of the valve naturally rests on the magnetic auxiliary support device 5 in the middle, thereby obtaining vertical support force and preventing the valve from tilting or falling due to gravity. A transmission component 3 is provided in the middle of each of the two mounting plates 2. The transmission component 3 can be a manually driven screw or a motor-driven lead screw assembly, its function being to provide the power source for linear motion. Clamping components 4 are slidably mounted on the inner surfaces of both mounting plates 2. Specifically, the inner surfaces of the mounting plates 2 can have grooves or guide rails, and the back of the clamping component 4 has a matching slider, thereby achieving a sliding connection and ensuring the stability of the clamping component 4 during movement. The two clamping components 4 are threadedly connected to the two transmission components 3 respectively. When the transmission component 3 rotates, the rotational motion is converted into linear motion through the threaded transmission pair, driving the clamping component 4 to slide relative to or away from each other along the inner surfaces of the mounting plates 2. Through the above structural design, this embodiment achieves automated clamping and positioning of the valve. When valve disassembly and maintenance are required, the operator places the valve on the magnetic auxiliary support device 5, and then drives the transmission component 3 to slide the two clamping components 4 towards each other until the clamping components 4 are tightly fitted against both sides of the valve. At this time, the clamping components 4 provide horizontal clamping force to fix the valve's horizontal position; the magnetic auxiliary support device 5 provides vertical support force and magnetic fixation force. This synergistic effect of clamping on both sides and supporting the middle can effectively cope with the risk of shaking or overturning of the valve during disassembly due to loose bolts, residual media, or shift in the center of gravity, providing a stable working foundation for subsequent disassembly and maintenance.

[0030] Example 2: like Figure 2 and Figure 6As shown, based on the above embodiments, this embodiment provides a detailed design of the specific structure and control logic of the clamping component 4. The clamping component 4 includes a mechanical claw capable of automatically adjusting the clamping angle and force. The mechanical claw is adapted to at least one valve structure among gate valves, globe valves, and ball valves. Specifically, the mechanical claw adopts a multi-degree-of-freedom articulated structure, with its root and tip joints driven by independent servo motors or hydraulic cylinders, thereby achieving flexible adjustment of the clamping angle. For gate valves with a flat shape, the mechanical claw can adjust the angle between its fingers to form a parallel clamping posture to increase the contact area; for ball valves with a near-spherical shape, the mechanical claw can adjust the curvature of each joint to form an enveloping grasping posture to conform to the spherical surface; for globe valves with irregular structures, the mechanical claw can adaptively conform to the valve body surface through the independent movement of each joint. This multi-posture adjustment capability allows the equipment to cover various valve types commonly found in thermal power plants, eliminating the need for frequent clamp replacements and significantly improving maintenance efficiency. To achieve precise control of the clamping force, the clamping component 4 is equipped with a pressure sensor to monitor the clamping force in real time and issue an alarm signal when the clamping force exceeds the preset yield limit of the valve material. The pressure sensor is preferably located on the inner contact surface of the mechanical claw fingers or embedded under the elastic buffer layer on the surface of the fingers to accurately sense the interaction force between the fingers and the valve body. Before operation, the operator can preset the corresponding yield limit threshold in the system according to the material of the valve to be disassembled (such as cast steel, stainless steel, alloy steel, etc.). For example, for common carbon steel valves, the yield limit is usually around 235 MPa, and the system can set the alarm threshold to 80% to 90% of this value to leave a safety margin. When the real-time pressure value detected by the sensor approaches this threshold, the system will trigger an audible and visual alarm to warn the operator to pay attention to the clamping force. Furthermore, this embodiment also includes a controller connected to the pressure sensor signal. The controller is used to automatically stop the power output of the transmission component 3 when the clamping force exceeds the yield limit. As the core processing unit of the system, the controller integrates an A / D conversion module and a comparison calculation module. The controller receives analog or digital signals from the pressure sensor in real time and compares them with the yield strength threshold in a preset database. Once the clamping force exceeds the threshold, the controller immediately sends a stop or reverse command to the drive source of transmission component 3 (such as a servo motor or hydraulic motor) to forcibly terminate the clamping action. This closed-loop control logic fundamentally eliminates irreversible damage such as valve body deformation, valve stem bending, or flange cracking caused by human error or misjudgment, effectively protecting high-value valve equipment and realizing integrated intelligent operation of structure, detection, and control.

[0031] Example 3: like Figure 3As shown, based on the above embodiments, this embodiment provides a detailed description of the specific structure and installation method of the magnetic auxiliary support device 5. The magnetic auxiliary support device 5 is a strong magnetic base. Specifically, the strong magnetic base can use rare earth permanent magnet materials such as neodymium iron boron as the magnetic source, and the magnetic force can be switched on and off through the internal magnetic circuit design. For example, the strong magnetic base can be equipped with a knob switch. The operator can change the arrangement direction of the internal magnets by rotating the knob, so that the magnetic lines of force are led to the surface of the base to attract the valve in the working state, or the magnetic lines of force are closed inside the base in the non-working state to facilitate the movement of the device. This structural design allows the support device to provide strong attraction force and facilitates quick adjustment by the operator according to the actual working conditions. Furthermore, the magnetic auxiliary support device 5 is detachably installed in the upper middle part of the mounting base 1 to provide auxiliary support for irregularly shaped or severely worn valves. The detachable connection method can be various forms such as bolt connection, T-slot slider connection, or snap-fit ​​connection. The advantage of this design is that when dealing with conventional valves with regular shapes and stable centers of gravity, operators can choose to remove the device to reduce equipment weight or avoid interference; while when dealing with irregularly shaped valves or valves with uneven flange surfaces due to long-term wear, the device can be quickly installed. For irregularly shaped or severely worn valves, their center of gravity often deviates from the geometric center, and the clamping force of the two clamping components 4 alone is insufficient to completely overcome the risk of valve overturning. In this case, the strong magnetic base can adhere to the non-contact surface or flat area on the side of the valve body, providing a normal constraint force perpendicular to the adsorption surface, thereby effectively preventing the valve from falling or colliding due to center of gravity shift during disassembly. To ensure the effectiveness of the support, the adsorption force of the strong magnetic base should meet certain mechanical requirements. In this embodiment, the adsorption force of the strong magnetic base is preferably set to be greater than or equal to 800N. This value is calculated based on the weight and disassembly torque of common medium and low pressure valves in thermal power plants, and can provide sufficient anti-overturning torque to ensure that the valve remains stable under dynamic conditions such as bolt loosening and residual stress release in pipelines, thereby significantly improving the safety of maintenance operations.

[0032] Example 4: like Figure 1 , Figure 2 and Figure 7As shown, based on the above embodiments, this embodiment optimizes the transmission details and protective structure of the device. Two transmission components 3 are respectively located in the middle of the two mounting plates 2, driving the corresponding clamping components 4 to slide relative to each other in the horizontal direction. Setting the transmission components 3 at the middle height of the mounting plates 2 ensures that the driving force acts on or near the horizontal line of the center of gravity of the clamping components 4, thereby reducing the overturning torque caused by force eccentricity during sliding and ensuring the smoothness of the sliding process. The horizontal driving method ensures that the direction of the clamping force is compatible with the direction of force applied during valve disassembly, facilitating uniform force application to both sides of the valve. Furthermore, the clamping components 4 and the transmission components 3 are connected by a threaded screw structure to achieve precise adjustment of the clamping position. Specifically, the main body of the transmission component 3 can be a high-precision ball screw or trapezoidal screw, with both ends rotatably supported on the mounting plate 2 via bearing seats. A screw nut is fixedly connected to the back of the clamping component 4, and the screw nut engages with the screw thread. When the transmission component 3 rotates under the drive of an external power source (such as a handwheel or servo motor), the screw nut cannot rotate along with it due to the circumferential limit of the slide rail, thus converting the rotational motion into linear motion and driving the clamping component 4 to translate. The threaded screw structure has a natural mechanical self-locking characteristic. When the clamping component 4 applies sufficient clamping force to the valve, even if the driving force is removed, the friction angle between the threaded pairs can prevent the clamping component 4 from loosening and retracting, thereby maintaining a constant clamping force during disassembly. This avoids the pressure fluctuations or pressure leakage risks that may occur with hydraulic or pneumatic transmissions, significantly improving the safety and positioning accuracy of the operation. To enhance the overall stability of the equipment, the mounting base 1 is a flat plate structure with an anti-slip pad or fixing interface at its lower end for positioning the equipment on the working surface. Specifically, the flat plate structure of the mounting base 1 provides a larger ground contact area, lowering the center of gravity of the equipment. The anti-slip pad layer can be made of high-friction coefficient materials such as rubber and polyurethane, and laid on the bottom surface of the mounting base 1. This effectively increases the frictional resistance between the equipment and the ground or workbench, preventing displacement or slippage when disassembling high-torque valves. The fixing interface can be in the form of anchor bolt holes, electromagnetic chuck interfaces, or quick-clamp interfaces, used to rigidly fix the equipment to a specific maintenance platform. This diverse positioning method allows the equipment to adapt to various complex working environments in thermal power plants, such as rough and uneven ground and narrow high-altitude platforms, ensuring the equipment body is "stable" before safely disassembling the valve. Furthermore, considering that valve surfaces are often precision-machined or coated with anti-corrosion coatings, the surface of the clamping component 4 is equipped with anti-slip pads or elastic buffer layers to reduce damage to the valve body surface. The anti-slip pads can be made of hard rubber or metal serrated plates with patterns on the surface. Their function is to increase the micro-roughness of the clamping contact surface, generating sufficient friction with a smaller clamping force to prevent valve slippage, thereby indirectly reducing the required clamping force threshold and protecting the valve body.The elastic buffer layer can be made of silicone, soft polyurethane, or spring steel plate in a laminated structure and is placed on the contact surface between the clamping component 4 and the valve body. When clamping force is applied to the valve, the elastic buffer layer undergoes elastic deformation, which can fill the microscopic unevenness caused by manufacturing tolerances or wear on the surface of the clamping component and the valve body, making the contact surface fit more tightly and the force more even. At the same time, the elastic buffer layer can also absorb the vibration and impact generated during disassembly, avoiding indentations, scratches, or even stress concentration cracks on the valve body surface caused by hard contact, thus achieving a unity of strong clamping and flexible protection.

[0033] Example 5: This embodiment, combined with a specific application scenario, provides a comprehensive explanation of the technical solutions of the above embodiments. The application scenario is set as the maintenance work of the main steam pipeline in a thermal power plant. The object to be disassembled is a gate valve that has suffered severe corrosion and has an irregular shape due to long-term operation. Because the valve has been in a high-temperature and high-pressure environment for a long time, the flange surface is worn, and the valve body surface is covered with a thick oxide layer, making it a typical difficult-to-disassemble condition. Before the operation begins, the operator first moves the equipment of this invention to the maintenance platform. The anti-slip pad at the bottom of the mounting base 1 is tightly attached to the ground, increasing the frictional resistance between the equipment and the working surface, ensuring that the equipment will not shift or tip over during subsequent disassembly. Due to the irregular shape of the gate valve and its center of gravity being off-center, it is very easy to tip over if held only by the sides. The operator hoists and places the valve on the magnetic auxiliary support device 5 at the upper middle of the mounting base 1. This device uses a strong magnetic base structure. The operator rotates the switch knob to guide the magnetic lines of force to the surface of the base, and the strong magnetic base then generates a strong adsorption force, firmly adsorbing and fixing the non-contact surface of the valve body at the bottom. This operation effectively counteracts the overturning moment caused by the valve's center of gravity shift, preventing the risk of the valve falling and injuring people during disassembly. Subsequently, the operator activates transmission component 3. Transmission component 3, employing a threaded screw structure, rotates under the drive of a servo motor, causing the two clamping components 4 to slide relative to each other along the inner side of the mounting plate 2. The mechanical claws on the clamping components 4 automatically adjust the angles of their joints according to the irregular shape of the valve body, ensuring that their claws tightly fit the clamping surfaces on both sides of the valve body, achieving precise adaptation for valves with different structures. Simultaneously, the elastic buffer layer on the surface of the mechanical claws fills the microscopic gaps between the claws and the corroded valve body, increasing friction to prevent slippage and avoiding hard contact that could scratch the valve body surface. During clamping, the pressure sensor built into the clamping component 4 monitors the clamping force data in real time. For the cast steel material of this gate valve, a corresponding yield strength threshold is preset in the controller. When the clamping force gradually increases and approaches this threshold, the controller immediately issues an audible and visual alarm signal and automatically cuts off the power output of transmission component 3, stopping the clamping action. This closed-loop control logic effectively prevents irreversible damage such as valve stem bending or flange cracking caused by excessive clamping force. Through the above process, this embodiment fully demonstrates the operation of the equipment under complex working conditions. From the anti-slip positioning at the bottom and the magnetic auxiliary support in the middle to the adaptive clamping and intelligent force control on both sides, the components work together to successfully solve the technical pain points of poor adaptability, blind force control, and insufficient stability of traditional tools, significantly improving the safety and efficiency of valve maintenance operations in thermal power plants.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. 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 valve maintenance and disassembly device for thermal power plants, characterized in that, The device includes a mounting base (1), with mounting plates (2) on both sides of the top of the mounting base (1). A magnetic auxiliary support device (5) is fixedly installed between the two mounting plates (2) at the middle of the upper end of the mounting base (1). A transmission component (3) is provided in the middle of the two mounting plates (2). A clamping component (4) is slidably installed on the inner surface of the two mounting plates (2). The two clamping components (4) are respectively connected to the two transmission components (3).

2. The valve maintenance and disassembly equipment for thermal power plants according to claim 1, characterized in that, The clamping component (4) includes a mechanical claw that can automatically adjust the clamping angle and force, and the mechanical claw is adapted to at least one valve structure among gate valve, stop valve, and ball valve.

3. The valve maintenance and disassembly equipment for thermal power plants according to claim 2, characterized in that, The clamping component (4) is equipped with a pressure sensor to monitor the clamping force in real time and to issue an alarm signal when the clamping force exceeds the preset yield limit of the valve material.

4. The valve maintenance and disassembly equipment for thermal power plants according to claim 3, characterized in that, It also includes a controller connected to the pressure sensor signal, the controller being used to automatically stop the power output of the transmission component (3) when the clamping force exceeds the yield limit.

5. The valve maintenance and disassembly equipment for thermal power plants according to claim 1, characterized in that, The magnetic auxiliary support device (5) is a strong magnetic base.

6. The valve maintenance and disassembly equipment for thermal power plants according to claim 1, characterized in that, The two transmission components (3) are respectively disposed in the middle of the two mounting plates (2) and drive the corresponding clamping components (4) to slide relative to each other in the horizontal direction.

7. The valve maintenance and disassembly equipment for thermal power plants according to claim 1, characterized in that, The clamping component (4) and the transmission component (3) are connected by a threaded screw structure to achieve precise adjustment of the clamping position.

8. The valve maintenance and disassembly equipment for thermal power plants according to claim 1, characterized in that, The mounting base (1) is a flat plate structure with an anti-slip pad or a fixed interface at its lower end for positioning the equipment on the working surface.

9. The valve maintenance and disassembly equipment for thermal power plants according to claim 1, characterized in that, The surface of the clamping component (4) is provided with an anti-slip pad or an elastic buffer layer to reduce damage to the valve body surface.

10. The valve maintenance and disassembly equipment for thermal power plants according to claim 1, characterized in that, The magnetic auxiliary support device (5) is detachably installed at the upper middle part of the mounting base (1) to provide auxiliary support for irregularly shaped or severely worn valves.

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