Boiler overhauling device for power generation

Abstract

The invention discloses a boiler overhauling device for power generation, and relates to the field of boiler overhauling, the boiler overhauling device comprises a base, a moving block and a moving guide frame, the moving block is fixed below the base, the moving guide frame is connected below the moving block, an overhauling frame is arranged above the base, and a channel door is installed on the outer side of the overhauling frame; bottom fixing frames are fixed to the left side and the right side of the base correspondingly, driving blocks are arranged in the bottom fixing frames, and up-down sliding structures are formed between the driving blocks and the bottom fixing frames. According to the boiler overhauling device for power generation, the overall lifting height of the device can be adjusted through the arrangement of the extension frames and the extension rods, after the extension rods are mutually spliced, the butt joint of the extension rods can be kept consistent through the calibration blocks, threads can be kept continuous, the driving block can smoothly move, and the service life of the device is prolonged. By reducing the extension frames and the extension rods, inconvenience caused by the fact that the whole top fixing frame is too high to follow-up maintenance can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of boiler maintenance, in particular to a boiler maintenance device for power generation. Background Art

[0002] A power generation boiler is a device that uses thermal power to generate electricity. It provides power generation energy through the combustion of combustibles. When using a power generation boiler, high safety standards are required. During use, the boiler also needs to be regularly inspected and maintained. A boiler inspection device can be used for inspection and maintenance.

[0003] Prior art 1 (publication number CN210340245U, Chinese patent published on April 17, 2020) A boiler maintenance device in a thermal power plant, comprising a boiler maintenance device body, a first hydraulic pressure, a second hydraulic pressure and a movable hanger, the bottom end of the boiler maintenance device body is fixedly connected to the first hydraulic pressure, the bottom of the first hydraulic pressure is fixedly connected to the hydraulic column, the middle of the top of the hydraulic column is movably connected to the movable column, the top of the first hydraulic pressure is overlapped and connected to the second hydraulic pressure, and the top of the second hydraulic pressure is movably connected to the movable hanger. The movable hanger can perform maintenance work on the outer wall and the inside of the boiler respectively according to the needs of maintenance personnel, thereby improving maintenance efficiency; Prior art 2 (publication number CN214780581U, Chinese patent published on November 19, 2021) A boiler maintenance device in a power plant, relating to the field of boiler maintenance technology, to solve the problem that the existing detection method in the prior art is to suspend the staff to the height of the boiler through a lifting equipment, but the suspension by cable is prone to shaking, and it is not easy to adjust the maintenance direction. A lifting support shaft cylinder is arranged at the bottom of the annular track pedestal, and there are four lifting support shaft cylinders. A multi-link telescopic part is arranged inside the lifting support shaft cylinder, and the multi-link telescopic part is arranged as a three-section structure. A switching sleeve is arranged on the top of the multi-link telescopic part, and the multi-link telescopic part is connected to the annular track pedestal through the switching sleeve. An anchoring tripod is arranged at the bottom of the lifting support shaft cylinder, and the anchoring tripod is connected to the lifting support shaft cylinder by bolts. A fan-shaped maintenance vehicle is arranged above the annular track pedestal, and an interlocking track groove is arranged inside the annular track pedestal.

[0004] Although the current boiler maintenance device can realize the mobile maintenance of the outer ring of the boiler, the ring rises directly on the outside of the boiler, which has high requirements on the external environment of the boiler. When there are local connecting parts on the outside of the boiler, it will affect the rise of the equipment, resulting in certain limitations in the use of the device. In addition, the lifting height of the device cannot be adjusted according to the needs of use, which reduces the flexibility of the device. Summary of the invention

[0005] The purpose of the present invention is to provide a boiler maintenance device for power generation, so as to solve the problem that the ring-shaped device directly rises on the outside of the boiler, which has high requirements on the external environment of the boiler. When there are connecting parts locally on the outside of the boiler, it will affect the rise of the equipment, resulting in certain limitations in the use of the device, and the lifting height of the device cannot be adjusted according to the needs of use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A boiler maintenance device for power generation, comprising a base, a moving block and a moving guide frame, wherein a moving block is fixed below the base, and a moving guide frame is connected below the moving block, an inspection frame is arranged above the base, and a passage door is installed on the outside of the inspection frame, bottom fixed frames are fixed on both left and right sides of the base, and a driving block is arranged inside the bottom fixed frame, and an up-and-down sliding structure is formed between the driving block and the bottom fixed frame, the driving block is fixed on the left and right sides of the inspection frame to control the movement of the inspection frame, an extension frame is detachably connected above the bottom fixed frame, and a top fixed frame is detachably connected above the extension frame, a bottom driving rod is rotatably installed inside the bottom fixed frame, and the bottom driving rod penetrates between the driving block and the driving block to form a threaded connection, an extension rod is detachably connected above the bottom driving rod, and a top driving rod is detachably connected above the extension rod, and the upper end of the top driving rod is rotatably installed inside the top fixed frame, and a rotating driving mechanism is connected below the bottom driving rod.

[0007] To further optimize the technical solution, the movable guide frame is designed as a ring structure, the movable block is located inside the movable guide frame and forms a sliding connection between the movable guide frames, and a movable mechanism for controlling the movement of the movable block is provided inside the movable block.

[0008] To further optimize the technical solution, the movable mechanism includes a driving wheel and an auxiliary ball; A driving wheel is arranged on the side of the moving block, and the outer surface of the driving wheel is in contact with the moving guide frame to control the movement of the moving block; The auxiliary balls are rotatably mounted below the moving block, and the auxiliary balls are evenly distributed below the moving block.

[0009] To further optimize the technical solution, the movable guide frame includes a first guide rail and a second guide rail, the first guide rail and the second guide rail are arranged in a left-right symmetrical shape, and the first guide rail and the second guide rail are combined to form a ring-shaped movable guide frame.

[0010] To further optimize the technical solution, two groups of plug-in blocks are fixed on the right side of the first guide rail, a groove body corresponding to the plug-in block is provided on the left side of the second guide rail, and a locking rod is threadedly connected to the top of the plug-in block, and the upper end of the locking rod passes through the second guide rail, and the first guide rail and the second guide rail provide movement guidance for the base at the bottom, avoiding the first guide rail and the second guide rail from affecting the external components of the boiler due to the rising, and the first guide rail and the second guide rail can be spliced ​​and combined, which is convenient for installation and combination on the outside of the boiler.

[0011] To further optimize the technical solution, the rotation drive mechanism includes a transmission rod, a transmission belt and a motor; A transmission rod, fixed below the bottom driving rod to control the rotation of the bottom driving rod; A transmission belt is arranged on the outside of the transmission rod to transmit power to the transmission rods below the two sets of bottom driving rods; The motor is connected to the transmission rod to control the rotation of the transmission rod.

[0012] To further optimize the technical solution, the extension rod and the bottom drive rod and the top drive rod are all threadedly connected to the drive block, and the threads of the extension rod, the bottom drive rod and the top drive rod are continuous with each other.

[0013] To further optimize the technical solution, a transmission block with a rectangular structure is fixed under the extension rod and under the top driving rod, a transmission groove is provided at the top of the extension rod and the top of the bottom driving rod, a concave-convex matching structure is formed between the transmission groove and the transmission block, and a calibration block is fixed inside the transmission groove, an up and down sliding structure is formed between the calibration block and the transmission block, the top driving rod and the bottom driving rod provide a positioning support effect for the extension rod, so that the extension rod remains stable, and the extension frames can be locked by the connection and matching installation rods of the docking block and the docking groove, so that they can be spliced ​​and combined for use according to usage needs.

[0014] To further optimize the technical solution, docking blocks are fixed below the top fixed frame and below the extension frame, docking grooves are provided above the extension frame and above the bottom fixed frame, and a concave-convex matching structure is formed between the docking groove and the docking block, and a connecting groove is provided inside the docking block, and the internal thread of the connecting groove is connected to a mounting rod to lock the connection between the docking block and the docking groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The first guide rail and the second guide rail provide movement guidance for the base at the bottom, thereby preventing the first guide rail and the second guide rail from affecting the external components of the boiler due to the rise, and the first guide rail and the second guide rail can be spliced ​​and combined, which is convenient for installation and combination on the outside of the boiler; (2) The threaded connection between the drive block and the bottom drive rod can provide a vertical drive effect for the inspection frame, so that it can move vertically, thereby reducing the space required for the inspection frame to rise and increasing the scope of application and flexibility of use of the device; (3) The overall lifting height of the device can be adjusted by setting the extension frame and the extension rod. After the extension rods are spliced ​​together, the calibration block can be used to maintain the consistency of the angle of the connection, so that the thread can remain continuous and the drive block can move smoothly. By reducing the extension frame and the extension rod, the overall height of the top fixed frame can be avoided to avoid inconvenience caused by subsequent maintenance; (4) The top driving rod and the bottom driving rod provide positioning support for the extension rod, so that the extension rod remains stable, and the extension frames can be locked by connecting the docking block and the docking groove with the installation rod, so that they can be spliced ​​and combined for use according to the needs; (5) The operation stability of the inspection frame is improved by setting two sets of bottom drive rods, and the two sets of drive rods maintain synchronous rotation through the transmission effect of the transmission belt, thereby reducing the number of motor settings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the first guide rail of the present invention; Figure 3 It is a schematic diagram of the main cross-sectional structure of the first guide rail and the second guide rail connected to each other in the present invention; Figure 4 This is a schematic diagram of the structure of the base of the present invention when viewed from above; Figure 5 This is a schematic diagram of the main cross-sectional structure of the base of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the extended frame of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the extension rod of the present invention; Figure 8 This is a schematic diagram of the main cross-sectional structure of the bottom fixing frame of the present invention; Fig. 9 It is a schematic diagram of the main cross-sectional structure of the extension rod of the present invention.

[0017] In the figure: 1. base; 2. moving block; 3. driving wheel; 4. auxiliary ball; 5. first guide rail; 6. second guide rail; 7. plug-in block; 8. locking rod; 9. inspection frame; 10. passage door; 11. bottom fixed frame; 12. extension frame; 13. top fixed frame; 14. driving block; 15. bottom driving rod; 16. extension rod; 17. top driving rod; 18. transmission rod; 19. transmission belt; 20. motor; 21. docking groove; 22. docking block; 23. connecting groove; 24. mounting rod; 25. transmission block; 26. transmission groove; 27. calibration block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 9 , the present invention provides the following technical solution: a boiler maintenance device for power generation, comprising a base 1, a moving block 2 and a moving guide frame, the moving block 2 is fixed below the base 1, and the moving guide frame is connected below the moving block 2; Embodiment 1:

[0020] The invention provides a technical solution, which discloses that an inspection frame 9 is arranged above a base 1, and a passage door 10 is installed on the outside of the inspection frame 9, bottom fixed frames 11 are fixed on both left and right sides of the base 1, and a driving block 14 is arranged inside the bottom fixed frame 11, and an up and down sliding structure is formed between the driving block 14 and the bottom fixed frame 11, the driving block 14 is fixed on the left and right sides of the inspection frame 9 to control the movement of the inspection frame 9, an extension frame 12 is detachably connected above the bottom fixed frame 11, and a top fixed frame 13 is detachably connected above the extension frame 12, a bottom driving rod 15 is rotatably installed inside the bottom fixed frame 11, and the bottom driving rod 15 penetrates the driving block 14 and forms a threaded connection between the driving block 14, an extension rod 16 is detachably connected above the bottom driving rod 15, and a top driving rod 17 is detachably connected above the extension rod 16, and the upper end of the top driving rod 17 is rotatably installed inside the top fixed frame 13, and a rotating driving mechanism is connected below the bottom driving rod 15.

[0021] When in use, the movable guide frame can be used to provide guidance for the moving direction of the movable block 2 so that it can move around the boiler. The movable guide frame is arranged at the bottom to avoid excessive impact on the external environment when the inspection frame 9 moves upward. The number of extension frames 12 can be adjusted according to maintenance needs. When adjusting the number of extension frames 12, the number of extension rods 16 can be adjusted accordingly, thereby adjusting the rising height of the inspection frame 9 to adapt to different usage needs. The maintenance personnel can enter the inspection frame 9 by opening the passage door 10, and then drive the drive block 14 to move by rotating the bottom drive rod 15, and the drive block 14 drives the inspection frame 9 to move vertically. Embodiment 2:

[0022] On the basis of Example 1, a movable guide frame is disclosed that has an annular structure design, wherein the movable block 2 is located inside the movable guide frame and forms a sliding connection between the movable guide frame, and a movable mechanism for controlling the movement of the movable block 2 is arranged inside the movable block 2, and the movable mechanism includes a driving wheel 3 and an auxiliary ball 4, the driving wheel 3 is arranged on the side of the movable block 2, and the outer surface of the driving wheel 3 is in contact with the movable guide frame to control the movement of the movable block 2, the auxiliary ball 4 is rotatably installed below the movable block 2, and the auxiliary balls 4 are evenly distributed below the movable block 2, and the movable guide frame includes a first guide rail 5 and a second guide rail 6, the first guide rail 5 and the second guide rail 6 are arranged in a left-right symmetrical shape, and the first guide rail 5 and the second guide rail 6 are combined to form an annular movable guide frame, two groups of plug-in blocks 7 are fixed on the right side of the first guide rail 5, and a groove body corresponding to the plug-in block 7 is arranged on the left side of the second guide rail 6, and a locking rod 8 is threadedly connected to the upper part of the plug-in block 7, and the upper end of the locking rod 8 passes through the second guide rail 6.

[0023] The rotation of the driving wheel 3 can drive the moving block 2 to move inside the first guide rail 5 and the second guide rail 6, and drive the inspection frame 9 to move. The auxiliary ball 4 can rotate with the movement of the moving block 2 to reduce the friction resistance of the moving block 2. The first guide rail 5 and the second guide rail 6 can be spliced, combined and disassembled, which is convenient for arranging them to the outside of the boiler. During disassembly, the locking rod 8 can be rotated to release the connection between the locking rod 8 and the plug-in block 7, and then the plug-in block 7 can be pulled out of the slot to realize the splitting between the first guide rail 5 and the second guide rail 6. Embodiment three:

[0024] On the basis of the first embodiment, a rotary drive mechanism is disclosed, which includes a transmission rod 18, a transmission belt 19 and a motor 20. The transmission rod 18 is fixed below the bottom drive rod 15 to control the rotation of the bottom drive rod 15. The transmission belt 19 is arranged on the outside of the transmission rod 18 to transmit power to the transmission rods 18 below the two groups of bottom drive rods 15. The motor 20 is connected to the transmission rod 18 to control the rotation of the transmission rod 18. The extension rod 16 and the bottom drive rod 15 and the top drive rod 17 are all threadedly connected to the drive block 14, and the threads of the extension rod 16 and the bottom drive rod 15 and the top drive rod 17 are continuous with each other. A transmission belt 19 with a rectangular structure is fixed below the extension rod 16 and the top drive rod 17. The top of the extension rod 16 and the top of the bottom driving rod 15 are both provided with a transmission groove 26, a concave-convex matching structure is formed between the transmission groove 26 and the transmission block 25, and a calibration block 27 is fixed inside the transmission groove 26, and an up and down sliding structure is formed between the calibration block 27 and the transmission block 25, docking blocks 22 are fixed below the top fixed frame 13 and below the extension frame 12, docking grooves 21 are provided above the extension frame 12 and above the bottom fixed frame 11, and a concave-convex matching structure is formed between the docking groove 21 and the docking block 22, and a connecting groove 23 is provided inside the docking block 22, and a mounting rod 24 is threadedly connected to the internal thread of the connecting groove 23 to lock the connection between the docking block 22 and the docking groove 21.

[0025] When the bottom driving rod 15 is controlled to rotate, the transmission rod 18 can be driven to rotate by the motor 20, and the transmission rod 18 drives another group of transmission rods 18 connected thereto to rotate through the transmission belt 19, so that the two groups of bottom driving rods 15 rotate synchronously, and the bottom driving rod 15 drives the inspection frame 9 to move through the threaded connection between the driving block 14. When the number of the extension frame 12 and the extension rod 16 needs to be adjusted, the connection between the top fixed frame 13 and the extension frame 12 connected thereto can be released first, and the corresponding mounting rod 24 can be rotated to release the connection between it and the connecting groove 23, and then the docking block 22 can be pulled out of the docking groove 21, and the top The transmission block 25 at the lower end of the driving rod 17 will be disengaged from the connection with the transmission groove 26, and then the new extension frame 12 will be installed above the top extension frame 12, and the connection between the docking block 22 and the docking groove 21 will be fixed again by the installation rod 24, and then the corresponding extension rod 16 will be installed, the transmission block 25 and the transmission groove 26 will be connected, and the insertion direction will be controlled by the calibration block 27 so that the threads can be continuous with each other. After the adjustment is completed, the top fixed frame 13 will be installed, and the top driving rod 17 and the extension rod 16 will be connected at the same time, and the middle extension rod 16 will be positioned so that it can maintain good stability during subsequent use.

[0026] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler maintenance device for power generation, comprising a base (1), a moving block (2) and a moving guide frame, wherein the moving block (2) is fixed below the base (1), and the moving guide frame is connected below the moving block (2); Features: An inspection frame (9) is arranged above the base (1), and a passage door (10) is installed on the outside of the inspection frame (9); bottom fixing frames (11) are fixed on both left and right sides of the base (1), and a driving block (14) is arranged inside the bottom fixing frame (11), and an up-and-down sliding structure is formed between the driving block (14) and the bottom fixing frame (11); the driving block (14) is fixed on the left and right sides of the inspection frame (9) to control the movement of the inspection frame (9); an extension frame (12) is detachably connected to the top of the bottom fixing frame (11), and the extension frame (12) is A top fixing frame (13) is detachably connected to the top, a bottom driving rod (15) is rotatably mounted inside the bottom fixing frame (11), and the bottom driving rod (15) passes through the driving block (14) and forms a threaded connection between the driving blocks (14), an extension rod (16) is detachably connected to the top of the bottom driving rod (15), and a top driving rod (17) is detachably connected to the top of the extension rod (16), and the upper end of the top driving rod (17) is rotatably mounted inside the top fixing frame (13), and a rotation driving mechanism is connected to the bottom of the bottom driving rod (15).

2. A boiler maintenance device for power generation according to claim 1, characterized in that: The movable guide frame is designed in an annular structure, the movable block (2) is located inside the movable guide frame and forms a sliding connection between the movable guide frames, and a movable mechanism for controlling the movement of the movable block (2) is arranged inside the movable block (2).

3. A boiler maintenance device for power generation according to claim 2, characterized in that: The movable mechanism comprises a driving wheel (3) and an auxiliary ball (4); A driving wheel (3) is arranged on the side of the moving block (2), and the outer surface of the driving wheel (3) is in contact with the moving guide frame to control the movement of the moving block (2); The auxiliary balls (4) are rotatably mounted below the moving block (2), and the auxiliary balls (4) are evenly distributed below the moving block (2).

4. A boiler maintenance device for power generation according to claim 2, characterized in that: The movable guide frame comprises a first guide rail (5) and a second guide rail (6), wherein the first guide rail (5) and the second guide rail (6) are arranged in a bilaterally symmetrical manner, and the first guide rail (5) and the second guide rail (6) are combined to form an annular movable guide frame.

5. A boiler maintenance device for power generation according to claim 4, characterized in that: Two groups of plug-in blocks (7) are fixed on the right side of the first guide rail (5), a slot body corresponding to the plug-in block (7) is provided on the left side of the second guide rail (6), and a locking rod (8) is threadedly connected to the top of the plug-in block (7), and the upper end of the locking rod (8) passes through the second guide rail (6).

6. The power generation boiler maintenance device according to claim 1, characterized in that: The rotary drive mechanism comprises a transmission rod (18), a transmission belt (19) and a motor (20); A transmission rod (18) is fixed below the bottom driving rod (15) to control the rotation of the bottom driving rod (15); A transmission belt (19) is arranged on the outside of the transmission rod (18) to transmit power to the transmission rods (18) below the two groups of bottom drive rods (15); The motor (20) is connected to the transmission rod (18) to control the rotation of the transmission rod (18).

7. The power generation boiler maintenance device according to claim 1, characterized in that: The extension rod (16) and the bottom drive rod (15) and the top drive rod (17) are all threadedly connected to the drive block (14), and the threads of the extension rod (16) and the bottom drive rod (15) and the top drive rod (17) are continuous with each other.

8. A power generation boiler maintenance device according to claim 1 or 7, characterized in that: A transmission block (25) of a rectangular structure is fixed below the extension rod (16) and below the top driving rod (17); a transmission groove (26) is provided at the top of the extension rod (16) and at the top of the bottom driving rod (15); a concave-convex matching structure is formed between the transmission groove (26) and the transmission block (25); a calibration block (27) is fixed inside the transmission groove (26); and an up-and-down sliding structure is formed between the calibration block (27) and the transmission block (25).

9. The power generation boiler maintenance device according to claim 1, characterized in that: A docking block (22) is fixed below the top fixed frame (13) and below the extension frame (12), a docking groove (21) is provided above the extension frame (12) and above the bottom fixed frame (11), and a concave-convex matching structure is formed between the docking groove (21) and the docking block (22), and a connecting groove (23) is provided inside the docking block (22), and a mounting rod (24) is connected to the internal thread of the connecting groove (23) to lock the connection between the docking block (22) and the docking groove (21).

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