Automatic cleaning device for condenser tube bundle of power plant

Abstract

The invention provides a power plant condenser tube bundle automatic cleaning device which comprises a frame body and a cleaning assembly, the frame body is connected with a condenser tube bundle, the extension direction of the frame body is consistent with the extension direction of the condenser tube bundle, and the cleaning assembly comprises a cleaning ring body and a cleaning brush plate. The cleaning ring body is arranged on the condensation tube bundle in a sleeving mode, the cleaning ring body can move in the extending direction of the frame body, the cleaning ring body comprises a fixed ring body and a rotating ring body, the fixed ring body is connected with the frame body, the rotating ring body is arranged on the inner circumferential wall of the fixed ring body and can rotate relative to the fixed ring body, and the cleaning brush plate is detachably connected with the inner wall face of the rotating ring body. The multiple cleaning brush plates are arranged in the circumferential direction of the axis of the cleaning ring body at intervals. The automatic cleaning device for the condenser tube bundle of the power plant has the advantage of being good in cleaning effect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of condensers, and particularly relates to an automatic cleaning device for condenser tube bundles of power plants. BACKGROUND

[0002] In a thermal cycle, low-pressure exhaust steam (waste steam) from the last stage of a steam turbine enters a condenser shell and exchanges heat with the flowing cooling water (usually from a circulating cooling system) in a non-contact manner. The large total surface area of the tube bundle greatly enhances the heat exchange efficiency, enabling the steam to release latent heat of vaporization and condense into water, thereby establishing and maintaining a very high vacuum degree at the exhaust port of the steam turbine, which is the key to ensuring the efficiency of the thermal cycle. At the same time, the tube bundle is the most vulnerable and fouling part of the condenser, with impurities adhering to the outer wall and microorganisms or scale possibly growing on the inner wall, which can significantly reduce the heat exchange efficiency. Therefore, regular and efficient cleaning of the tube bundle is a top priority for power plant maintenance.

[0003] During operation of a power plant, scale, microbial sludge and other impurities may adhere to the surface of the condenser tube bundle, seriously affecting the heat exchange efficiency of the condenser and leading to increased energy consumption and decreased output of the unit. In related technologies, the cleaning of the condenser tube bundle is usually performed by manual scraping or high-pressure water jet washing using hand-held tools. This method has the problems of high labor intensity, low cleaning efficiency, dangerous working environment and easy scratching of the tube bundle surface. Although some automatic cleaning devices are available, they usually have only a single function and can only realize single axial or circumferential movement, resulting in incomplete cleaning. In addition, the core cleaning components such as brushes are difficult to replace after damage, often requiring the disassembly of a large number of parts, leading to long maintenance time and high cost, which cannot meet the demand for rapid maintenance of the equipment under the background of continuous operation of the power plant. SUMMARY

[0004] The present application aims to at least partially solve one of the technical problems in the related art.

[0005] To this end, an embodiment of the present application provides an automatic cleaning device for condenser tube bundles of power plants, which has the advantage of good cleaning effect.

[0006] The automatic cleaning device for condenser tube bundles of power plants according to the embodiment of the present application comprises: a frame body connected to the condenser tube bundle, the extension direction of the frame body being consistent with the extension direction of the condenser tube bundle; A cleaning assembly includes a cleaning ring and cleaning brushes. The cleaning ring is fitted onto the condenser tube bundle and is movable along the extension direction of the frame. The cleaning ring includes a fixed ring and a rotating ring. The fixed ring is connected to the frame, and the rotating ring is disposed on the inner circumferential wall of the fixed ring and is rotatable relative to the fixed ring. The cleaning brushes are detachably connected to the inner wall of the rotating ring. There are multiple cleaning brushes, which are arranged circumferentially at intervals along the axis of the cleaning ring.

[0007] The automatic cleaning device for power plant condenser tube bundles in this embodiment of the invention features a cleaning ring that can move along the extension direction of the frame and rotate, allowing the cleaning brushes to fully cover the tube bundle surface for comprehensive cleaning, thus improving cleaning efficiency. This automatic cleaning device replaces manual hand tools, reducing worker workload and safety risks during operation. Furthermore, the detachable cleaning brushes facilitate quick and easy replacement, reducing maintenance time and consequently lowering maintenance costs.

[0008] In some embodiments, the automatic cleaning device for power plant condenser tube bundles of the present invention further includes a guide portion, the guide portion being connected to the condenser tube bundle, the extension direction of the guide portion being parallel to the extension direction of the frame, and the guide portion penetrating the fixing ring.

[0009] In some embodiments, the automatic cleaning device for power plant condenser tube bundles of the present invention further includes a driving component, the driving component being connected to the frame, the output shaft of the driving component being connected to the fixed ring, and the driving component being used to drive the cleaning assembly to move along the extension direction of the frame.

[0010] In some embodiments, the cleaning assembly further includes a transmission component connected to at least one of the fixed ring and the rotating ring, the transmission component being movable along the extension direction of the frame, the movement of the transmission component causing the fixed ring to move or causing the rotating ring to rotate.

[0011] In some embodiments, the frame includes a first frame and a second frame, the first frame and the second frame being arranged opposite each other on both sides of the condenser tube bundle along an extension direction orthogonal to the condenser tube bundle, and the drive component being disposed on the first frame. The transmission component is located on the second frame, and a transmission rack is provided on the side of the second frame adjacent to the condenser tube bundle. The transmission component includes a first transmission gear, which meshes with the transmission rack.

[0012] In some embodiments, the transmission component further includes a second transmission gear, the rotating ring body is provided with an annular gear ring, the second transmission gear meshes with the annular gear ring, the first transmission gear and the second transmission gear are connected by a bevel gear set, and the axial direction of the first transmission gear is orthogonal to the axial direction of the second transmission gear.

[0013] In some embodiments, the rotating ring body is integrally formed with the annular gear ring.

[0014] In some embodiments, the cleaning brush plate includes a brush plate base and a mounting portion, and at least one of the rotating ring and the annular toothed ring is provided with a mounting groove, the mounting portion being adapted to be disposed in the mounting groove.

[0015] In some embodiments, the mounting portion includes a positioning block and a disassembly component, the mounting portion being placed within the mounting groove, and at least a portion of the disassembly component abutting against the wall of the mounting groove.

[0016] In some embodiments, the disassembly / assembly component includes a disassembly / assembly base, an anti-detachment block, and an elastic element. The anti-detachment block is movably connected to the disassembly / assembly base. There are two anti-detachment blocks, which are symmetrically arranged on both sides of the elastic element. The mounting portion is placed in the mounting groove, and the anti-detachment block abuts against the wall of the mounting groove. Attached Figure Description

[0017] Figure 1 This is an installation schematic diagram of the automatic cleaning device for power plant condenser tube bundles according to an embodiment of the present invention.

[0018] Figure 2 This is a three-dimensional schematic diagram of an automatic cleaning device for power plant condenser tube bundles according to an embodiment of the present invention.

[0019] Figure 3 This is a partial structural schematic diagram of an automatic cleaning device for power plant condenser tube bundles according to an embodiment of the present invention.

[0020] Figure 4 This is a partial structural schematic diagram of the transmission component of the automatic cleaning device for power plant condenser tube bundles according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the cleaning ring of the automatic cleaning device for power plant condenser tube bundles according to an embodiment of the present invention.

[0022] Figure 6 This is a partial enlarged schematic diagram of the automatic cleaning device for power plant condenser tube bundles according to an embodiment of the present invention.

[0023] Figure 7 This is a structural diagram of the disassembly and assembly components of the automatic cleaning device for power plant condenser tube bundles according to an embodiment of the present invention.

[0024] Figure label: 100. Condenser tube bundle, 11. First frame; 12. Second frame; 21. Clean the ring body; 211. Fix the ring body; 212. Rotate the ring body; 213. Install the slot; 214. Annular gear ring. 22. Cleaning brush plate; 221. Brush plate base; 23. Mounting part; 231. Positioning block; 232. Disassembly / assembly parts; 2321. Disassembly / assembly base; 2322. Anti-detachment block; 2323. Elastic element. 3. Guiding section 4. Drive components, 5. Transmission components, 51. Transmission rack, 52. First transmission gear, 53. Second transmission gear, 54. Bevel gear set. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] like Figures 1-7 As shown, the automatic cleaning device for power plant condenser tube bundle 100 according to an embodiment of the present invention includes: a frame and a cleaning assembly.

[0027] The frame is connected to the condenser tube bundle 100, and the extension direction of the frame is the same as the extension direction of the condenser tube bundle 100 (e.g., Figure 1 The cleaning assembly includes a cleaning ring 21 and cleaning brushes 22. The cleaning ring 21 is fitted onto the condenser tube bundle and is movable along the extension direction of the frame. The cleaning ring 21 includes a fixed ring 211 and a rotating ring 212. The fixed ring 211 is connected to the frame, and the rotating ring 212 is located on the inner circumferential wall of the fixed ring 211. The rotating ring 212 is rotatable relative to the fixed ring 211. The cleaning brushes 22 are detachably connected to the inner wall of the rotating ring 212. There are multiple cleaning brushes 22, which are arranged circumferentially at intervals along the axis of the cleaning ring 21.

[0028] Specifically, such as Figures 1-7 As shown, the frame is a structure connected to the condenser tube bundle 100. Its function is to support the entire automatic cleaning device and ensure that the cleaning device can move along the extension direction of the condenser tube bundle 100. The design of the frame matches the structure of the condenser tube bundle 100, allowing it to be securely mounted on the tube bundle.

[0029] The cleaning ring 21 is fitted around the outside of the condenser tube bundle and is the main part of the cleaning assembly. The cleaning ring 21 consists of a fixed ring 211 and a rotating ring 212. The fixed ring 211 is connected to the frame and serves to fix it in place, ensuring that the cleaning ring 21 maintains its correct position during movement. The rotating ring 212 is located on the inner circumferential wall of the fixed ring 211 and can rotate relative to the fixed ring 211. This design allows the cleaning brush 22 to rotate, thereby achieving a more effective cleaning action.

[0030] The cleaning brush 22 is the component that directly participates in the cleaning work. Multiple cleaning brushes 22 are arranged circumferentially along the axis of the cleaning ring 21. The cleaning brushes 22 are detachably connected to the inner wall of the rotating ring 212 for easy replacement and maintenance.

[0031] Therefore, the automatic cleaning device for the power plant condenser tube bundle 100 in this embodiment of the invention allows the cleaning ring 21 to move along the extension direction of the frame, and the rotating ring 212 to rotate, enabling the cleaning brush 22 to fully cover the surface of the tube bundle for comprehensive cleaning, thus improving cleaning efficiency. The automatic cleaning device replaces manual hand tools for cleaning, reducing the labor intensity of workers and the safety risks during operation. Furthermore, since the cleaning brush 22 is detachable, replacement is convenient and quick, reducing maintenance time and correspondingly lowering maintenance costs.

[0032] In some embodiments, the automatic cleaning device for power plant condenser tube bundle 100 of the present invention further includes a guide portion 3, which is connected to the condenser tube bundle 100. The extension direction of the guide portion 3 is parallel to the extension direction of the frame, and the guide portion 3 penetrates the fixing ring 211.

[0033] Specifically, such as Figures 1-7 As shown, the guide portion 3 is connected to the condenser tube bundle 100 at both ends, and its extension direction is parallel to the extension direction of the frame. The design of the guide portion 3 allows it to pass through the fixing ring 211, thus guiding the entire cleaning assembly to move linearly on the condenser tube bundle 100 while maintaining the stability of the fixing ring 211.

[0034] Understandably, the main function of the guide section 3 is to ensure the straightness and stability of the cleaning assembly during movement. Since the guide section 3 penetrates the fixed ring 211, it can restrict the lateral movement of the cleaning ring 21, allowing it to clean along the axial direction of the condenser tube bundle 100.

[0035] The guide section 3 also provides additional support, which enhances the structural strength of the entire automatic cleaning device and ensures that the device will not deviate from the correct cleaning path due to external forces during the cleaning process.

[0036] Preferably, there are multiple guide portions 3, which are arranged circumferentially along the center line of the condenser tube bundle 100, and lubricating oil can be applied between the guide portions 3 and the fixing ring 211.

[0037] In some embodiments, the automatic cleaning device for power plant condenser tube bundle 100 of the present invention further includes a driving component 4, which is connected to the frame and the output shaft of the driving component 4 is connected to the fixed ring 211. The driving component 4 is used to drive the cleaning assembly to move along the extension direction of the frame.

[0038] Understandably, the drive unit 4 is connected to the frame, and its main function is to provide power to the cleaning assembly. The output shaft of the drive unit 4 is connected to the fixed ring 211. When the drive unit 4 is working, it can transmit power to the fixed ring 211 through the output shaft, thereby driving the cleaning assembly to move along the extension direction of the frame.

[0039] It should be noted that, through the operation of the drive component 4, the cleaning assembly can move along the condenser tube bundle 100 according to a set path and speed. The drive component 4 typically also includes a control system for regulating the actions of the drive component 4, including starting, stopping, speed regulation, and direction control, to ensure that the cleaning assembly can operate according to the predetermined cleaning strategy.

[0040] Optionally, the driving component 4 is a linear module driven by a motor. The outer peripheral wall of the fixed ring 211 is provided with a fixing block, which is connected to the slide of the linear module. That is, under the drive of the motor, the fixed ring 211 can move in the back-and-forth direction.

[0041] Of course, the drive component 4 can also be other devices with linear reciprocating functions, such as cylinders, hydraulic cylinders, etc.

[0042] In some embodiments, the cleaning assembly further includes a transmission component 5, which is connected to at least one of a fixed ring 211 and a rotating ring 212. The transmission component 5 is movable along the extension direction of the frame, and the movement of the transmission component 5 causes the fixed ring 211 to move or causes the rotating ring 212 to rotate.

[0043] Specifically, such as Figures 1-7 As shown, the transmission component 5 is connected to at least one of the fixed ring 211 and the rotating ring 212. It is responsible for transmitting the power of the drive component 4 to the cleaning assembly, enabling the cleaning assembly to move or rotate on the condenser tube bundle 100. The transmission component 5 is movable along the extension direction of the frame, and its movement can drive the fixed ring 211 to move or drive the rotating ring 212 to rotate.

[0044] Understandably, the primary function of the transmission component 5 is to transmit power. The transmission component 5 receives power from the drive component 4 and converts it into linear or rotary motion of the cleaning assembly. The transmission component 5 may include gears, chains, belts, or other types of transmission mechanisms, which can adjust the speed and force of the motion to adapt to different cleaning needs. The design of the transmission component 5 can support linear movement of the fixed ring 211 and rotation of the rotating ring 212, or a combination of both, thereby enabling complex cleaning actions.

[0045] In some embodiments, the frame includes a first frame 11 and a second frame 12, the first frame 11 and the second frame 12 being arranged along a direction orthogonal to the extension direction of the condenser tube bundle 100 (e.g., Figure 1 The components (in the left and right directions) are arranged opposite each other on both sides of the condenser tube bundle 100. The drive component 4 is located on the first frame 11, and the transmission component 5 is located on the second frame 12. The second frame 12 is provided with a transmission rack 51 on the side adjacent to the condenser tube bundle 100. The transmission component 5 includes a first transmission gear 52, which meshes with the transmission rack 51.

[0046] Specifically, such as Figures 1-7 As shown, the first frame 11 and the second frame 12 are arranged opposite each other on both sides of the condenser tube bundle 100 in the left-right direction. This arrangement provides stable support for the cleaning assembly and ensures that the cleaning device can cover the entire surface of the tube bundle.

[0047] Drive unit 4 is mounted on the first frame 11 and is responsible for providing power to the entire cleaning unit. Transmission unit 5 is mounted on the second frame 12 and works in conjunction with drive unit 4 on the first frame 11 to transmit power to the cleaning components. The design of transmission unit 5 allows it to move along the extension direction of the frame, thereby driving the cleaning components to perform cleaning.

[0048] Understandably, the second frame 12 has a drive rack 51 on the side adjacent to the condenser tube bundle 100. This is a linear transmission mechanism fixed to the second frame 12 for meshing with a drive gear. The transmission component 5 includes a first drive gear 52, which meshes with the drive rack 51. When the drive component 4 is activated, the first drive gear 52 moves along the drive rack 51, thereby driving the cleaning assembly to move along the extension direction of the condenser tube bundle 100.

[0049] In other words, the dual-frame design of the first frame 11 and the second frame 12 provides better stability and support for the cleaning device, enabling it to remain stable during the cleaning process and not shift due to external forces or vibrations. Through the meshing of the transmission rack 51 and the first transmission gear 52, the moving distance and speed of the cleaning components can be precisely controlled, ensuring the uniformity and effectiveness of the cleaning process.

[0050] In some embodiments, the transmission component 5 further includes a second transmission gear 53, the rotating ring body 212 is provided with an annular gear ring 214, the second transmission gear 53 meshes with the annular gear ring 214, the first transmission gear 52 and the second transmission gear 53 are connected by a bevel gear set 54, and the axial direction of the first transmission gear 52 is orthogonal to the axial direction of the second transmission gear 53.

[0051] Specifically, such as Figures 1-7 As shown, the transmission component 5 also includes a second transmission gear 53, which works in conjunction with the first transmission gear 52 to achieve the rotational movement of the cleaning assembly. The rotating ring 212 is provided with an annular gear ring 214, which is coaxially arranged with the rotating ring 212 and has a diameter approximately equal to that of the rotating ring 212, for meshing with the second transmission gear 53.

[0052] The first transmission gear 52 and the second transmission gear 53 are connected by a bevel gear set 54. The bevel gear set 54 is a special gear transmission device in which the axes of the gears are orthogonal, that is, the axis of the first transmission gear 52 is orthogonal to the axis of the second transmission gear 53. This design allows the linear motion of the first transmission gear 52 to be converted into the rotational motion of the second transmission gear 53.

[0053] In other words, the first transmission gear 52 is connected to the second transmission gear 53 through the bevel gear set 54, and the second transmission gear 53 meshes with the annular gear ring 214 on the rotating ring body 212. When the drive component 4 is activated, the first transmission gear 52 moves along the transmission rack 51, and at the same time drives the second transmission gear 53 to rotate through the bevel gear set 54, thereby driving the rotating ring body 212 and the cleaning brush plate 22 to rotate and clean.

[0054] Therefore, the introduction of the bevel gear set 54 enables the transmission component 5 to achieve a combination of linear and rotary motion, improving the movement flexibility of the cleaning assembly and allowing it to better adapt to different cleaning needs. Through the rotational motion of the rotating ring 212, the cleaning brush plate 22 can cover a larger cleaning area, improving cleaning efficiency and effectiveness. The orthogonal axial design of the bevel gear set 54 ensures more precise power transmission between the first transmission gear 52 and the second transmission gear 53, thereby improving the accuracy and consistency of the cleaning process.

[0055] In some embodiments, the rotating ring 212 and the annular gear ring 214 are integrally formed. It is understood that the rotating ring 212 and the annular gear ring 214 are formed from the same material in the same manufacturing process. This integral design simplifies the manufacturing process, reduces assembly steps and potential problems, and improves production efficiency and product quality.

[0056] The one-piece molding design ensures a perfect match between the rotating ring 212 and the annular gear ring 214, reducing gaps and errors caused by improper assembly, thereby improving transmission efficiency and cleaning effect.

[0057] In some embodiments, the cleaning brush 22 includes a brush base 221 and a mounting portion 23. At least one of the rotating ring 212 and the annular toothed ring 214 is provided with a mounting groove 213, and the mounting portion 23 is adapted to be disposed in the mounting groove 213.

[0058] It is understandable that, such as Figures 1-7 As shown, the brush plate base 221 is the main part of the cleaning brush plate 22. It is directly connected to the rotating ring 212 or the annular toothed ring 214 and is used to support and fix the bristles or cleaning medium. The mounting part 23 is a component on the cleaning brush plate 22. The mounting part 23 is used to fix the brush plate base 221 in the mounting groove 213 on the rotating ring 212 or the annular toothed ring 214.

[0059] The rotating ring 212 or the annular gear ring 214 is provided with a mounting groove 213, which is used to accommodate the mounting part 23. The position and number of mounting grooves 213 can be adjusted according to cleaning requirements. The mounting part 23 is adapted to be located in the mounting groove 213 on the rotating ring 212 or the annular gear ring 214, ensuring that the cleaning brush plate 22 can be securely fixed on the rotating ring 212. The rotating ring 212 or the annular gear ring 214 is connected to the cleaning brush plate 22 through the mounting groove 213 and the mounting part 23, so that the cleaning brush plate 22 can move with the rotating ring 212 during its rotation, thereby realizing the cleaning action.

[0060] In other words, the cooperative design of the mounting groove 213 and the mounting part 23 ensures the stable installation of the cleaning brush 22 on the rotating ring 212, reducing vibration and loosening during the cleaning process and improving the stability and efficiency of cleaning. Since the cleaning brush 22 is connected to the mounting part 23 and the mounting groove 213, replacing the cleaning brush 22 becomes simple and quick, without the need for complicated disassembly and installation processes.

[0061] In some embodiments, the mounting part 23 includes a positioning block 231 and a disassembly component 232. The mounting part 23 is placed in the mounting groove 213, and at least a portion of the disassembly component 232 abuts against the wall of the mounting groove 213.

[0062] Understandably, the positioning block 231 is part of the mounting section 23, used to ensure the correct position and orientation of the cleaning brush 22 within the mounting groove 213. The disassembly piece 232 is another part of the mounting section 23, at least a portion of which abuts against the wall of the mounting groove 213 to provide additional securing force.

[0063] The positioning block 231 and the disassembly / removal component 232 together constitute the mounting part 23. The positioning block 231 and the disassembly / removal component 232 are connected to the brush plate base 221, forming a complete cleaning brush plate 22. The mounting part 23 is placed within the mounting groove 213, with the positioning block 231 and the disassembly / removal component 232 respectively contacting different parts of the mounting groove 213 to ensure the secure installation of the cleaning brush plate 22. At least a portion of the disassembly / removal component 232 abuts against the wall of the mounting groove 213. This design can be achieved through threads, snaps, springs, or other mechanical connections to provide additional fixing force.

[0064] In other words, the design of the positioning block 231 and the disassembly / removal component 232 ensures the correct position and orientation of the cleaning brush 22 within the mounting slot 213, reducing vibration and loosening during the cleaning process and improving cleaning stability and efficiency. Due to the design of the mounting part 23, the replacement process of the cleaning brush 22 becomes simpler and faster. Simply loosen the disassembly / removal component 232 to easily remove or insert the cleaning brush 22 from the mounting slot 213. The secure installation ensures that the cleaning brush 22 can effectively contact the surface of the condenser tube bundle 100, thereby improving the cleaning effect and reducing the residue of scale and impurities.

[0065] In some embodiments, the disassembly / assembly component 232 includes a disassembly / assembly base 2321, an anti-detachment block 2322, and an elastic member 2323. The anti-detachment block 2322 is movably connected to the disassembly / assembly base 2321. There are two anti-detachment blocks 2322, which are symmetrically arranged on both sides of the elastic member 2323. The mounting part 23 is placed in the mounting groove 213, and the anti-detachment block 2322 abuts against the wall of the mounting groove 213.

[0066] Specifically, such as Figures 1-7 As shown, the disassembly base 2321 is the foundation of the disassembly component 232. The disassembly base 2321 is connected to other parts of the cleaning brush plate 22 (such as the brush plate base 221) and is used to support the entire disassembly component 232. Anti-detachment blocks 2322 are movably connected to the disassembly base 2321, and at least two anti-detachment blocks 2322 are symmetrically arranged on both sides of the elastic member 2323. The function of the anti-detachment blocks 2322 is to abut against the wall of the mounting groove 213 during installation to provide additional fixing force. The elastic member 2323 is part of the disassembly component 232; it typically has a certain degree of elasticity, allowing the anti-detachment blocks 2322 to move within a certain range, thereby enabling flexible installation and disassembly of the disassembly component 232.

[0067] Understandably, the anti-detachment block 2322 is movably connected to the mounting base 2321. This design allows the anti-detachment block 2322 to abut against the wall of the mounting groove 213 during installation, providing additional fixing force. The two anti-detachment blocks 2322 are symmetrically arranged on both sides of the elastic member 2323, ensuring that the anti-detachment blocks 2322 are evenly distributed around the mounting groove 213, providing a stable fixing effect. The mounting part 23 is placed inside the mounting groove 213, and the anti-detachment blocks 2322 abut against the wall of the mounting groove 213. Through the elastic action of the elastic member 2323, the anti-detachment blocks 2322 can make tight contact with the wall of the mounting groove 213, thereby ensuring the secure installation of the cleaning brush plate 22.

[0068] The mounting slot 213 provides a standard installation position for the cleaning brush plate 22. The main connection is achieved through the disassembly / assembly component 232, and with the auxiliary positioning of the positioning block 231, the accuracy and firmness of the cleaning brush plate 22 after installation are ensured. This allows operators to quickly and accurately disassemble and assemble the brush plate 22 without using complex tools or spending excessive time, effectively reducing equipment downtime. Preferably, the side wall of the mounting slot 213 is provided with a V-shaped retaining groove.

[0069] When the anti-detachment block 2322 is inserted into the mounting slot 213, under the pre-tightening force of the spring, the two anti-detachment blocks 2322 automatically pop open and lock into the V-shaped slot. The inclined self-locking principle is used to achieve a firm lock, and the installation process is completed in one step. When disassembly is required, simply pull out the mounting block with force. The squeezing force presses the two locking blocks inward to overcome the spring force, and they can be easily removed. This achieves truly quick disassembly and assembly, while ensuring that the cleaning brush plate 22 will not accidentally loosen during operation.

[0070] Furthermore, the anti-detachment block 2322 moves radially normally within the mounting groove 213 to achieve locking and releasing, while effectively preventing the block from completely dislodging from the empty groove under the action of elasticity or vibration, thus avoiding the risk of part loss or mechanism failure.

[0071] When in use, pull out the anti-detachment block 2322 forcefully. The anti-detachment block 2322 retracts inward, compressing the spring between them, so that its end comes out of the V-shaped groove on the inner wall of the mounting groove 213 of the gear inner ring. Then gently pull the cleaning brush plate 22 outward from the mounting groove 213 of the gear inner ring to complete the disassembly. The positioning block 231 then disengages from the positioning groove.

[0072] Take a new cleaning brush plate 22 and precisely align the two anti-detachment blocks 2322 on its back with the corresponding mounting slots 213 on the inner ring of the gear. Smoothly push the anti-detachment blocks 2322 on the back of the cleaning brush plate 22 into the mounting slots 213. When the anti-detachment blocks 2322 are pushed to the bottom, the inclined surface of the anti-detachment blocks 2322 inside will contact the inclined surface of the V-shaped slot. Under the expansion force of the spring, the two blocks will automatically spring out and firmly lock into the V-shaped slot. The operator will usually hear a clear "click" sound, which is a clear signal of successful engagement, indicating that the cleaning brush plate 22 has been firmly locked and the installation is complete.

[0073] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0075] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0076] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0077] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic cleaning device for condenser tube bundles in power plants, characterized in that, include: A frame, which is connected to the condenser tube bundle, and the extending direction of the frame is consistent with the extending direction of the condenser tube bundle; A cleaning assembly includes a cleaning ring and cleaning brushes. The cleaning ring is fitted onto the condenser tube bundle and is movable along the extension direction of the frame. The cleaning ring includes a fixed ring and a rotating ring. The fixed ring is connected to the frame, and the rotating ring is disposed on the inner circumferential wall of the fixed ring and is rotatable relative to the fixed ring. The cleaning brushes are detachably connected to the inner wall of the rotating ring. There are multiple cleaning brushes, which are arranged circumferentially at intervals along the axis of the cleaning ring.

2. The automatic cleaning device for power plant condenser tube bundles according to claim 1, characterized in that, It also includes a guide portion, which is connected to the condenser tube bundle. The extension direction of the guide portion is parallel to the extension direction of the frame, and the guide portion penetrates the fixing ring.

3. The automatic cleaning device for power plant condenser tube bundles according to claim 2, characterized in that, It also includes a drive component connected to the frame, the output shaft of the drive component being connected to the fixed ring, and the drive component being used to drive the cleaning assembly to move along the extension direction of the frame.

4. The automatic cleaning device for power plant condenser tube bundles according to claim 3, characterized in that, The cleaning assembly further includes a transmission component connected to at least one of the fixed ring and the rotating ring. The transmission component is movable along the extension direction of the frame, and the movement of the transmission component drives the fixed ring to move or drives the rotating ring to rotate.

5. The automatic cleaning device for power plant condenser tube bundles according to claim 4, characterized in that, The frame includes a first frame and a second frame, which are arranged opposite each other on both sides of the condenser tube bundle along a direction orthogonal to the extension direction of the condenser tube bundle. The drive component is located on the first frame. The transmission component is located on the second frame, and a transmission rack is provided on the side of the second frame adjacent to the condenser tube bundle. The transmission component includes a first transmission gear, which meshes with the transmission rack.

6. The automatic cleaning device for power plant condenser tube bundles according to claim 5, characterized in that, The transmission component further includes a second transmission gear. The rotating ring body is provided with an annular toothed ring. The second transmission gear meshes with the annular toothed ring. The first transmission gear and the second transmission gear are connected by a bevel gear set, and the axial direction of the first transmission gear is orthogonal to the axial direction of the second transmission gear.

7. The automatic cleaning device for power plant condenser tube bundles according to claim 6, characterized in that, The rotating ring body is integrally formed with the annular toothed ring.

8. The automatic cleaning device for power plant condenser tube bundles according to claim 7, characterized in that, The cleaning brush plate includes a brush plate base and a mounting part. At least one of the rotating ring and the annular toothed ring is provided with a mounting groove, and the mounting part is adapted to be disposed in the mounting groove.

9. The automatic cleaning device for power plant condenser tube bundles according to claim 8, characterized in that, The mounting part includes a positioning block and a disassembly component. The mounting part is placed in the mounting groove, and at least a portion of the disassembly component abuts against the wall of the mounting groove.

10. The automatic cleaning device for power plant condenser tube bundles according to claim 9, characterized in that, The disassembly / assembly component includes a disassembly / assembly base, an anti-detachment block, and an elastic element. The anti-detachment block is movably connected to the disassembly / assembly base. There are two anti-detachment blocks, which are symmetrically arranged on both sides of the elastic element. The mounting part is placed in the mounting groove, and the anti-detachment block abuts against the wall of the mounting groove.

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