Breakage repairing equipment for boiler tail flue economizer
By designing the economizer damage repair equipment for boiler tail flue with universal joints and multi-functional devices, the problem of economizer being easily damaged in high temperature and high pressure environments is solved, and high efficiency is achieved for pipelines with small turning radius and different steering directions Repairing improves the quality and safety of repairs.
Patent Information
- Application Number
- CN202411339179.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2024-12-10
AI Technical Summary
The economizer at the tail flue at the boiler is prone to wear, corrosion or breaking in high temperature, high pressure and corrosive environments. The existing equipment is difficult to be suitable for welding and repair in pipes with small turning radius and different steering directions, and it is difficult to ensure repair quality and safety. .
A damage repair device including a first housing, universal joint, cleaning device, welding device, walking device, pressure device, airbag and pressure sensor is designed. The flexibility and turning capability of the equipment are improved through universal joints and the cleaning is used. The device found a broken port, the welding device repaired, and the repair quality was detected through the airbag and pressure sensor.
It improves the convenience and repair reliability in economizer pipelines with small turning radius, ensures the quality and safety of damage repair, and enhances the timely and effective repair ability of economizer damage.
Smart Images
Figure CN119098716A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of economizer repair equipment, and in particular to a damage repair equipment for a boiler tail flue economizer. Background Art
[0002] Economizers are crucial heat recovery devices in boiler systems, and their performance and operating status directly impact the overall efficiency and operating costs of the boiler. Economizers in the boiler's tail flue are subject to long-term exposure to harsh environments such as high temperature, high pressure, and corrosive gases. These economizers are prone to wear, corrosion, and rupture, leading to reduced thermal efficiency, leakage, and even safety incidents. Therefore, timely and effective repair of damaged economizers is crucial.
[0003] Since the economizer pipes are mostly designed to be tightly connected, it is difficult or even impossible to effectively repair the damaged points by welding from the outside. Therefore, it is necessary to consider welding and repairing from the inside of the economizer pipes. However, conventional pipe inner wall welding equipment is difficult to apply to the economizer internal pipes with a small turning radius and different turning directions.
[0004] For example, the patent with the prior art authorization announcement number CN215091577U, this utility model relates to the field of welding technology, and in particular to a precise welding repair device for defects on the inner wall of a pressure pipe, comprising a load-bearing rod, the outer side of which is rotatably inlaid with two groups of limiting disks, the outer annular array of which is rotatably inlaid with four groups of reinforcing struts, the outer side of which is tightened with two groups of threaded rings, the threaded rings are located on one side of the limiting disks, a top piece is rotatably installed between the threaded rings and the reinforcing struts, a reinforcement strip is slidably installed on the inside of the load-bearing rod, and a fixing bolt is penetrated and tightened at the edge of the upper end face of the load-bearing rod.
[0005] However, the device is long and inconvenient to bend, which reduces the convenience of turning operations in pipelines and increases the limitations of its use. Summary of the Invention
[0006] In order to solve the above technical problems, the present invention provides a damage repair device for the economizer at the tail end of the boiler flue, which improves the convenience of walking in the internal pipeline of the economizer with a small turning radius and different turning directions, improves the effect of quality inspection after the economizer is repaired, and improves the reliability of the repair.
[0007] The air filter is installed on the outer wall of the first shell and the air filter is installed on the outer wall of the second shell. One shell moves forward, causing the first shell to drive the second shell to move through the universal joint. When it is necessary to turn in the pipeline, the first shell and the second shell are guided by the walking device, so that the equipment can turn. By setting the universal joint, the flexibility of the equipment in bending in different directions is improved, and the convenience of the equipment in moving in the internal pipeline of the economizer with a small turning radius and different turning directions is improved. During the movement of the equipment, the inner wall of the pipeline is cleaned by the cleaning device, so that the damaged opening can be found more clearly, and then the position is welded by the welding device. When the welding repair is completed, the pressure device is used to inflate the two groups of air bags while sucking air into the second shell. After the two groups of air bags expand, the pipelines on both sides of the repair position are blocked to form a closed space between the two groups of air bags. The second shell sucks air into the pipeline space between the two groups of air bags through the filter to form a negative pressure space between the two groups of air bags. At this time, the pressure in the space is maintained and the pressure is measured by the pressure sensor. When the pressure change is measured, it indicates that there is a repair loophole, which improves the effect of the equipment on the quality inspection of the economizer after repair and improves the reliability of the repair.
[0008] Preferably, the cleaning device includes a storage device, a first motor, a rotating shaft, multiple groups of first electric cylinders, a disc, a frustum, multiple groups of support rods, multiple groups of brushes and multiple groups of connecting rods. The first motor is mounted on the inner wall of the first shell, the rotating shaft is rotatably mounted on the first shell, the first output end of the first motor is connected to the rotating shaft, the fan blades are mounted on the outer wall of the rotating shaft, the multiple groups of first electric cylinders are all mounted on the outer wall of the first shell, the disc is mounted on the movable end of the multiple groups of first electric cylinders, the frustum is slidably mounted on the outer wall of the rotating shaft, and the frustum is rotatably mounted on the outer wall of the disc, the bottom ends of the multiple groups of support rods are all rotatably mounted on the outer wall of the rotating shaft, the multiple groups of brushes are respectively rotatably mounted on the top ends of the multiple groups of support rods, the bottom ends of the multiple groups of connecting rods are all rotatably mounted on the outer wall of the frustum, and the top ends of the multiple groups of connecting rods are respectively rotatably connected to the outer walls of the multiple groups of support rods Then, a storage device is arranged in the first shell, and the storage device is used to store compressed air; the disc is pushed to move by multiple groups of first electric cylinders, so that the disc drives the table to move, and after the table moves, multiple groups of support rods are supported by multiple groups of connecting rods to expand and swing each other, so that multiple groups of brushes contact the inner wall of the economizer pipe, and then the rotating shaft is driven to rotate by the first motor, so that the rotating shaft drives multiple groups of brushes to rotate through multiple groups of support rods, so that multiple groups of brushes clean the inner wall of the economizer pipe, and the rotation of the rotating shaft drives the fan blades to rotate, so that the fan blades blow away the cleaned dirt, thereby improving the convenience of the equipment for inspection and cleaning of the inner wall of the economizer pipe. When the equipment is used up, the stored compressed air is discharged outward through the storage device, thereby facilitating the backblowing and cleaning of the air inlet filter of the first shell, thereby improving the convenience of equipment maintenance.
[0009] Preferably, the storage device includes a charging device, a pressure tank, a spline sleeve, a spline shaft, a friction disc, a piston, a spring and a cover body, the pressure tank is mounted on the inner wall of the first shell, the spline sleeve is rotatably mounted on the outer wall of the pressure tank, the spline shaft slides through the pressure tank and the inside of the spline sleeve, the first group of friction discs are mounted on the right end of the spline shaft, the second group of friction discs are mounted on the second output end of the first motor, the piston is mounted on the left end of the spline shaft, the cover body is mounted on the outer wall of the pressure tank, the piston is slidably mounted in the cover body, the spring is mounted on the inner wall of the cover body, the charging device and the blowing device are both connected to the pressure tank, the charging device pressurizes the pressure tank through the power of the rotation of the spline sleeve, and The pressure charging device is used to back-blow and clean the filter screen of the first shell; the spring provides power to the piston, so that the piston pushes the two sets of friction discs into contact through the spline shaft. After the first motor rotates, it drives the second set of friction discs to rotate. The second set of friction discs drives the spline shaft to rotate through the first set of friction discs, so that the spline shaft rotates and drives the spline sleeve to rotate, so that the spline sleeve provides power to the pressure charging device. When the pressure charging device continuously pressurizes the pressure tank, the pressure pushes the piston to move to the left, so that the piston drives the first set of friction discs to move, thereby separating the two sets of friction discs. At this time, the pressure charging in the pressure tank is automatically stopped, thereby improving the control convenience of automatic quantitative pressure charging in the pressure tank.
[0010] Preferably, the pressure charging device includes a first pump body, two sets of bevel gears, a first valve, a second valve, an annular tube and multiple sets of nozzles, the first pump body is installed on the inner wall of the first shell, the first set of bevel gears is installed on the outer wall of the spline sleeve, the second set of bevel gears is installed on the power input end of the first pump body, the two sets of bevel gears are meshed, the first valve is connected and arranged on the output end of the first pump body, the first valve output end is connected with the pressure tank, the second valve is connected and arranged on the outer wall of the pressure tank, the second valve output end is connected with the annular tube, the annular tube is installed on the inner wall of the first shell, and the multiple sets of nozzles are all connected and arranged on the outer wall of the annular tube; after the spline sleeve rotates, power is provided to the first pump body through the two sets of bevel gears, so that the first pump body compresses air into the pressure tank through the first valve. When it is necessary to clean the air inlet filter of the first shell, the second valve is opened, so that the air in the pressure tank is transported to the multiple sets of nozzles through the annular tube, so that the multiple sets of nozzles back-blow and clean the filter, thereby improving the convenience of automatic cleaning and maintenance of the equipment.
[0011] Preferably, the welding device includes a driving device, a ring body, a gear ring, an electromagnetic slip ring, a second electric cylinder and a welding gun, the ring body is mounted on the outer wall of the second shell body through track rotation, the gear ring is mounted on the inner wall of the second shell body through track rotation, and the ring body and the gear ring are connected by magnetism, the driving device is arranged in the second shell body, the driving device is used to drive the gear ring to rotate, the electromagnetic slip ring is mounted on the outer wall of the second shell body, the second electric cylinder is mounted on the outer wall of the ring body, and the welding gun is mounted on the movable end of the second electric cylinder through a bracket; when the second shell body drives the welding gun to move to the position to be repaired, the second electric cylinder drives the welding gun to move and contact the inner wall of the pipeline, so that the welding gun repairs the pipeline, and the driving device drives the gear ring to rotate, so that the gear ring drives the ring body to rotate through magnetic force, so that the ring body drives the welding gun to move to different positions, thereby improving the convenience of circumferential repair of the inner wall of the pipeline, and by providing the electromagnetic slip ring, the convenience of powering the second electric cylinder and the welding gun when the ring body rotates is improved.
[0012] Preferably, the walking device includes multiple groups of third electric cylinders, two groups of walking tracks and multiple groups of universal balls, the multiple groups of third electric cylinders are respectively installed on the outer walls of the first shell and the second shell, the two groups of walking tracks are respectively installed on the moving ends of the multiple groups of third electric cylinders on the first shell, and the multiple groups of universal balls are respectively installed on the moving ends of the remaining multiple groups of third electric cylinders; the two groups of walking tracks and the multiple groups of universal balls are pushed to move by the multiple groups of third electric cylinders, so that the two groups of walking tracks and the multiple groups of universal balls are in contact with the inner wall of the economizer pipe, the equipment is driven forward by the two groups of walking tracks, and the equipment is guided and supported by the multiple groups of universal balls, thereby improving the convenience of the equipment turning in different directions in the pipe.
[0013] Preferably, the pressure device includes a second pump body and a delivery pipe. The second pump body is installed on the inner wall of the second shell. The delivery pipe is connected to the output end of the second pump body, and the output end of the delivery pipe is connected to the two groups of air bags. After the second pump body is turned on, air is sucked into the space between the two groups of air bags through the filter. At the same time, the second pump body pressurizes the two groups of air bags through the delivery pipe, thereby improving the convenience of the equipment in detecting the quality of the repair area.
[0014] Preferably, the driving device includes a second motor and a spur gear, the second motor is mounted on the inner wall of the second shell, the spur gear is arranged on the output end of the second motor, and the spur gear is engaged with the gear ring; the spur gear is driven to rotate by the second motor, so that the spur gear drives the gear ring to rotate.
[0015] Preferably, it also includes multiple groups of cameras and multiple groups of lighting lamps, which are respectively installed on the outer wall of the first shell and the outer wall of the ring body; by setting up multiple groups of cameras and multiple groups of lighting lamps, the convenience of observation and operation of the equipment during walking and welding operations inside the economizer is improved.
[0016] Preferably, it also includes a cable, which is connected and arranged on the outer side wall of the second shell; by arranging the cable, the convenience of power transmission and signal transmission of the equipment is improved, and the convenience of removing the equipment from the economizer is improved.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the first shell and the second shell are placed from the pipe mouth of the economizer, the first shell is driven forward by the walking device, and the first shell drives the second shell to move through the universal joint. When it is necessary to turn in the pipeline, the first shell and the second shell are guided by the walking device, so that the equipment can be turned. By setting the universal joint, the flexibility of the equipment in bending in different directions is improved, and the convenience of the equipment in walking in the internal pipeline of the economizer with a small turning radius and different turning directions is improved. During the movement of the equipment, the inner wall of the pipeline is cleaned by the cleaning device, so that it is easier to clean. The damaged part is found and then welded at that position by welding device. When the welding repair is completed, the two groups of air bags are pressurized by the pressure device while the second shell is sucked in. After the two groups of air bags are expanded, the pipes on both sides of the repair position are blocked to form a closed space between the two groups of air bags. The second shell sucks air in the pipe space between the two groups of air bags through the filter to form a negative pressure space between the two groups of air bags. At this time, the pressure in the space is maintained and measured by the pressure sensor. When the pressure change is measured, it indicates that there is a repair loophole, which improves the effect of the equipment on the quality inspection of the economizer after repair and improves the reliability of the repair. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is an axonometric structural diagram of the present invention; Figure 2This is an axonometric structural diagram of the connection between the second housing and the filter, etc.; Figure 3 It is a schematic diagram of the axonometric partial structure of the connection between the support rod and the brush; Figure 4 This is a schematic diagram of the partial axonometric structure of the connection between the first electric cylinder and the disc; Figure 5 This is a schematic diagram of the partial axonometric structure of the connection between the pressure tank and the second valve, etc.; Figure 6 This is a schematic diagram of the partial isometric structure of the connection between the second housing and the airbag, etc.; Figure 7 It is a schematic diagram of the axonometric structure of the connection between the universal joint and the second housing; Figure 8 This is a schematic diagram of the axonometric structure of the connection between the third electric cylinder and the walking crawler; Figure 9 This is a schematic diagram of the axonometric structure of the connection between the third electric cylinder and the universal ball; Figure 10 This is a schematic diagram of the partial isometric structure of the connection between the second electric cylinder and the welding gun; Figure 11 This is an axonometric partial structural diagram of the connection between the annular pipe and the nozzle; Figure 12 It is an axonometric partial structural diagram of the connection between the second shell and the ring body.
[0019] Reference numerals in the accompanying drawings: 101, first housing; 102, universal joint; 103, second housing; 104, airbag; 105, filter; 106, pressure sensor; 201, first motor; 202, rotating shaft; 203, fan blade; 204, first electric cylinder; 205, disc; 206, round table; 207, support rod; 208, brush; 209, connecting rod; 301, pressure tank; 302, spline sleeve; 303, spline shaft; 304, friction disc; 305, piston; 306, spring; 307, Cover body; 401, first pump body; 402, bevel gear; 403, first valve; 404, second valve; 405, annular tube; 406, nozzle; 501, ring body; 502, gear ring; 503, electromagnetic slip ring; 504, second electric cylinder; 505, welding gun; 601, third electric cylinder; 602, walking track; 603, universal ball; 701, second pump body; 702, delivery pipe; 801, second motor; 802, spur gear; 901, camera; 902, lighting lamp; 1001, cable. DETAILED DESCRIPTION
[0020] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0021] Example 1 The present invention relates to a device for repairing a damaged economizer of a tail flue of a boiler, comprising a first shell 101 and a universal joint 102, wherein the universal joint 102 is mounted on the outer side wall of the first shell 101, and the first shell 101 is provided with an air inlet and an exhaust hole, respectively, and a filter is provided at the air inlet; the device also comprises a cleaning device, a welding device, a walking device, a pressure device, a second shell 103, two sets of air bags 104, a filter 105 and a pressure sensor 106, wherein the second shell 103 is mounted on the other end of the universal joint 102, the two sets of air bags 104 are mounted on the outer side wall of the second shell 103, and the filter 105 is connected to the first shell 101. The device is provided on the outer wall of the second housing 103. The pressure sensor 106 is installed on the outer wall of the second housing 103. The filter 105 and the pressure sensor 106 are both provided between the two groups of air bags 104. The cleaning device is provided on the first housing 101 and is used to clean the inner wall of the economizer pipe. The welding device is provided on the second housing 103 and is used to repair damaged parts. The traveling device is provided on the first housing 101 and the second housing 103 and is used to drive the device to move. The pressure device is provided in the second housing 103 and is used to pressurize the two groups of air bags 104. The cleaning device includes a storage device, a first motor 201, a rotating shaft 202, multiple groups of first electric cylinders 204, a disc 205, a frustum 206, multiple groups of support rods 207, multiple groups of brushes 208 and multiple groups of connecting rods 209. The first motor 201 is installed on the inner wall of the first shell 101, the rotating shaft 202 is rotatably installed on the first shell 101, the first output end of the first motor 201 is connected to the rotating shaft 202, the fan blades 203 are installed on the outer wall of the rotating shaft 202, the multiple groups of first electric cylinders 204 are all installed on the outer wall of the first shell 101, the disc 205 is installed on the multiple groups of first electric cylinders 204. On the moving end of an electric cylinder 204, a round table 206 is slidably mounted on the outer wall of the rotating shaft 202, and the round table 206 is rotatably mounted on the outer wall of the disc 205. The bottom ends of multiple groups of support rods 207 are rotatably mounted on the outer wall of the rotating shaft 202. Multiple groups of brushes 208 are rotatably mounted on the top ends of the multiple groups of support rods 207. The bottom ends of multiple groups of connecting rods 209 are rotatably mounted on the outer wall of the round table 206. The top ends of the multiple groups of connecting rods 209 are rotatably connected to the outer walls of the multiple groups of support rods 207. A storage device is provided in the first housing 101, and the storage device is used to store compressed air. In this embodiment, the first shell 101 and the second shell 103 are placed from the pipe mouth of the economizer, and the first shell 101 is driven forward by the walking device, so that the first shell 101 drives the second shell 103 to move through the universal joint 102. When it is necessary to turn in the pipeline, the first shell 101 and the second shell 103 are guided by the walking device, so that the equipment can turn. By setting the universal joint 102, the flexibility of the equipment in bending in different directions is improved, and the convenience of the equipment in walking in the internal pipeline of the economizer with a small turning radius and different turning directions is improved. During the movement of the equipment, the inner wall of the pipeline is cleaned by the cleaning device, so that damage can be found more clearly. The mouth is then welded at that position by a welding device. When the welding repair is completed, the two groups of air bags 104 are pressurized by a pressure device while the second shell 103 is sucked in. After the two groups of air bags 104 are expanded, the pipes on both sides of the repair position are blocked to form a closed space between the two groups of air bags 104. The second shell 103 sucks air into the pipe space between the two groups of air bags 104 through the filter 105 to form a negative pressure space between the two groups of air bags 104. At this time, the pressure in the space is maintained and the pressure is measured by the pressure sensor 106. When the pressure change is measured, it indicates that there is a repair loophole, which improves the effect of the equipment on the quality inspection of the damaged economizer after repair and improves the reliability of the repair.
[0022] Example 2 On the basis of Example 1, a damaged repair device for a boiler tail flue economizer of the present invention is provided, wherein the storage device comprises a charging device, a pressure tank 301, a spline sleeve 302, a spline shaft 303, a friction disc 304, a piston 305, a spring 306 and a cover 307. The pressure tank 301 is mounted on the inner wall of the first shell 101, the spline sleeve 302 is rotatably mounted on the outer wall of the pressure tank 301, the spline shaft 303 slides through the pressure tank 301 and the spline sleeve 302, and the first set of friction discs 304 are mounted on the spline sleeve. At the right end of the shaft 303, the second set of friction discs 304 is mounted on the second output end of the first motor 201, the piston 305 is mounted on the left end of the spline shaft 303, the cover 307 is mounted on the outer wall of the pressure tank 301, the piston 305 is slidably mounted in the cover 307, and the spring 306 is mounted on the inner wall of the cover 307. The charging device and the blowing device are both connected to the pressure tank 301. The charging device uses the power of the rotation of the spline sleeve 302 to pressurize the pressure tank 301, and the charging device is used to backflush and clean the filter screen of the first housing 101; The pressure charging device includes a first pump body 401, two sets of bevel gears 402, a first valve 403, a second valve 404, an annular tube 405 and multiple sets of nozzles 406. The first pump body 401 is installed on the inner wall of the first shell 101, the first set of bevel gears 402 is installed on the outer wall of the spline sleeve 302, the second set of bevel gears 402 is installed on the power input end of the first pump body 401, the two sets of bevel gears 402 are meshed, the first valve 403 is connected and arranged on the output end of the first pump body 401, the output end of the first valve 403 is connected to the pressure tank 301, the second valve 404 is connected and arranged on the outer wall of the pressure tank 301, the output end of the second valve 404 is connected to the annular tube 405, the annular tube 405 is installed on the inner wall of the first shell 101, and the multiple sets of nozzles 406 are all connected and arranged on the outer wall of the annular tube 405; The welding device includes a drive device, a ring body 501, a gear ring 502, an electromagnetic slip ring 503, a second electric cylinder 504 and a welding gun 505. The ring body 501 is rotatably mounted on the outer wall of the second shell 103 via a track, and the gear ring 502 is rotatably mounted on the inner wall of the second shell 103 via a track. The ring body 501 and the gear ring 502 are magnetically connected. The drive device is disposed in the second shell 103 and is used to drive the gear ring 502 to rotate. The electromagnetic slip ring 503 is mounted on the outer wall of the second shell 103, the second electric cylinder 504 is mounted on the outer wall of the ring body 501, and the welding gun 505 is mounted on the movable end of the second electric cylinder 504 via a bracket. The walking device includes multiple sets of third electric cylinders 601, two sets of walking tracks 602, and multiple sets of universal balls 603. The multiple sets of third electric cylinders 601 are respectively mounted on the outer walls of the first housing 101 and the second housing 103. The two sets of walking tracks 602 are respectively mounted on the moving ends of the multiple sets of third electric cylinders 601 on the first housing 101. The multiple sets of universal balls 603 are respectively mounted on the moving ends of the remaining multiple sets of third electric cylinders 601. The pressure device includes a second pump body 701 and a delivery pipe 702. The second pump body 701 is installed on the inner wall of the second housing 103. The delivery pipe 702 is connected to the output end of the second pump body 701. The output end of the delivery pipe 702 is connected to the two groups of air bags 104. The driving device includes a second motor 801 and a spur gear 802. The second motor 801 is mounted on the inner wall of the second housing 103. The spur gear 802 is disposed on the output end of the second motor 801. The spur gear 802 is meshed with the gear ring 502. It also includes multiple sets of cameras 901 and multiple sets of lighting lamps 902, which are respectively mounted on the outer wall of the first shell 101 and the outer wall of the ring body 501; It also includes a cable 1001, which is connected and arranged on the outer side wall of the second housing 103; In this embodiment, the disc 205 is pushed to move by multiple groups of first electric cylinders 204, so that the disc 205 drives the circular table 206 to move. After the circular table 206 moves, multiple groups of support rods 207 are supported by multiple groups of connecting rods 209 to expand and swing each other, so that multiple groups of brushes 208 are in contact with the inner wall of the economizer pipe. Then, the first motor 201 drives the rotating shaft 202 to rotate, so that the rotating shaft 202 drives the multiple groups of brushes 208 to rotate through multiple groups of support rods 207, so that the multiple groups of brushes 208 clean the inner wall of the economizer pipe. When the rotating shaft 202 rotates, it drives the fan blades 203 to rotate, so that the fan blades 203 blow away the cleaned dirt, thereby improving the convenience of the equipment for inspection and cleaning of the inner wall of the economizer pipe. When the equipment is used up, the stored compressed air is discharged outward through the storage device, thereby facilitating the cleaning of the first shell 101. The air hole filter is back-flushed and cleaned to improve the convenience of equipment maintenance. The spring 306 provides power to the piston 305, so that the piston 305 pushes the two sets of friction discs 304 to contact each other through the spline shaft 303. After the first motor 201 rotates, it drives the second set of friction discs 304 to rotate. The second set of friction discs 304 drives the spline shaft 303 to rotate through the first set of friction discs 304. After the spline shaft 303 rotates, it drives the spline sleeve 302 to rotate, so that the spline sleeve 302 provides power to the charging device. When the charging device continuously pressurizes the pressure tank 301, the pressure pushes the piston 305 to move to the left, so that the piston 305 drives the first set of friction discs 304 to move, thereby separating the two sets of friction discs 304. At this time, the pressure charging in the pressure tank 301 is automatically stopped, thereby improving the control convenience of automatic quantitative pressure charging in the pressure tank 301.
[0023] like Figures 1 to 12 As shown, a damaged repair device for a boiler tail flue economizer of the present invention is provided. When the device is in operation, the first shell 101 and the second shell 103 are placed from the pipe mouth of the economizer, and the first shell 101 is driven forward by the walking device, so that the first shell 101 drives the second shell 103 to move through the universal joint 102. When it is necessary to turn in the pipeline, the first shell 101 and the second shell 103 are guided by the walking device, so that the device can turn. During the walking process of the device, the inner wall of the pipeline is cleaned by the cleaning device, and then the device is welded by the welding device. The position is welded. When the welding repair is completed, the pressure device is used to inflate the two groups of air bags 104 and at the same time, the second shell 103 is sucked in. After the two groups of air bags 104 are expanded, the pipes on both sides of the repair position are blocked to form a closed space between the two groups of air bags 104. The second shell 103 sucks air into the pipe space between the two groups of air bags 104 through the filter 105 to form a negative pressure space between the two groups of air bags 104. At this time, the pressure in the space is maintained and the pressure is measured by the pressure sensor 106. When the pressure change is measured, it indicates that there is a repair loophole.
[0024] The main functions achieved by the present invention are: improving the flexibility of the equipment in bending in different directions, and improving the convenience of the equipment in moving the internal pipeline of the economizer with a small turning radius and different turning directions; When the welding repair is completed, the two groups of air bags 104 are inflated to seal the pipes on both sides of the repair position, so that a negative pressure space is formed between the two groups of air bags 104. At this time, the pressure in the space is maintained and the pressure is measured by the pressure sensor 106. When the pressure change is measured, it indicates that there is a repair loophole, which improves the effect of the equipment on the quality inspection of the damaged economizer after repair and improves the reliability of the repair.
[0025] The filter 105, pressure sensor 106, first motor 201, first electric cylinder 204, first pump body 401, electromagnetic slip ring 503, second electric cylinder 504, welding gun 505, third electric cylinder 601, walking track 602, second pump body 701, second motor 801, camera 901 and lighting lamp 902 of the damage repair equipment for the boiler tail flue economizer of the present invention are purchased on the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, and technical personnel in this field do not need to make creative labor.
[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A damaged repair device for a boiler tail flue economizer, comprising a first shell (101) and a universal joint (102), wherein the universal joint (102) is mounted on an outer wall of the first shell (101), an air inlet and an air outlet are respectively arranged on the first shell (101), and a filter is arranged at the air inlet; It is characterized in that The device also includes a cleaning device, a welding device, a walking device, a pressure device, a second shell (103), two groups of air bags (104), a filter (105) and a pressure sensor (106), wherein the second shell (103) is mounted on the other end of the universal joint (102), the two groups of air bags (104) are mounted on the outer side wall of the second shell (103), the filter (105) is arranged on the outer side wall of the second shell (103), the pressure sensor (106) is mounted on the outer side wall of the second shell (103), and the filter (105) is arranged on the outer side wall of the second shell (103). The cleaning device (105) and the pressure sensor (106) are both arranged between the two groups of air bags (104); the cleaning device is arranged on the first shell (101), and the cleaning device is used to clean the inner wall of the economizer pipe; the welding device is arranged on the second shell (103), and the welding device is used to repair the damaged part; the walking device is arranged on the first shell (101) and the second shell (103), and the walking device is used to drive the device to move; the pressure device is arranged in the second shell (103), and the pressure device is used to pressurize the two groups of air bags (104).
2. A damaged repairing device for a boiler tail flue economizer as claimed in claim 1, It is characterized in that The cleaning device comprises a storage device, a first motor (201), a rotating shaft (202), a fan blade (203), a plurality of first electric cylinders (204), a disc (205), a truncated table (206), a plurality of support rods (207), a plurality of brushes (208) and a plurality of connecting rods (209), wherein the first motor (201) is mounted on an inner wall of a first housing (101), the rotating shaft (202) is rotatably mounted on the first housing (101), a first output end of the first motor (201) is connected to the rotating shaft (202), the fan blade (203) is mounted on an outer wall of the rotating shaft (202), the plurality of first electric cylinders (204) are all mounted on the outer wall of the first housing (101), and the disc (205) is mounted on the outer wall of the first housing (101). 05) are installed on the moving ends of multiple groups of first electric cylinders (204), the table (206) is slidably mounted on the outer wall of the rotating shaft (202), and the table (206) is rotatably mounted on the outer wall of the disc (205), the bottom ends of multiple groups of support rods (207) are all rotatably mounted on the outer wall of the rotating shaft (202), multiple groups of brushes (208) are respectively rotatably mounted on the top ends of the multiple groups of support rods (207), the bottom ends of multiple groups of connecting rods (209) are all rotatably mounted on the outer wall of the table (206), and the top ends of the multiple groups of connecting rods (209) are respectively rotatably connected to the outer walls of the multiple groups of support rods (207), and the storage device is arranged in the first shell (101), and the storage device is used to store compressed air.
3. A damaged repairing device for a boiler tail flue economizer as claimed in claim 2, It is characterized in that The storage device comprises a pressure charging device, a pressure tank (301), a spline sleeve (302), a spline shaft (303), a friction disc (304), a piston (305), a spring (306) and a cover (307); the pressure tank (301) is mounted on the inner wall of the first housing (101); the spline sleeve (302) is rotatably mounted on the outer wall of the pressure tank (301); the spline shaft (303) slides through the pressure tank (301) and the spline sleeve (302); the first group of friction discs (304) are mounted on the right end of the spline shaft (303); and the second group of friction discs (304) are mounted on the right end of the spline shaft (303). 04) is installed on the second output end of the first motor (201), the piston (305) is installed on the left end of the spline shaft (303), the cover body (307) is installed on the outer wall of the pressure tank (301), the piston (305) is slidably installed in the cover body (307), the spring (306) is installed on the inner wall of the cover body (307), the charging device and the blowing device are both connected to the pressure tank (301), the charging device pressurizes the pressure tank (301) through the power of the rotation of the spline sleeve (302), and the charging device is used to back-blow and clean the filter screen of the first shell (101).
4. A damaged repairing device for a boiler tail flue economizer as claimed in claim 3, It is characterized in that The pressure charging device comprises a first pump body (401), two sets of bevel gears (402), a first valve (403), a second valve (404), an annular tube (405) and a plurality of nozzles (406), wherein the first pump body (401) is mounted on the inner wall of the first housing (101), the first set of bevel gears (402) is mounted on the outer wall of the spline sleeve (302), the second set of bevel gears (402) is mounted on the power input end of the first pump body (401), and the two sets of bevel gears (402) are mounted on the outer wall of the spline sleeve (302). ), the first valve (403) is connected and arranged on the output end of the first pump body (401), the output end of the first valve (403) is connected to the pressure tank (301), the second valve (404) is connected and arranged on the outer wall of the pressure tank (301), the output end of the second valve (404) is connected and arranged to the annular tube (405), the annular tube (405) is installed on the inner wall of the first shell (101), and the plurality of nozzles (406) are connected and arranged on the outer wall of the annular tube (405).
5. A damaged repairing device for a boiler tail flue economizer as claimed in claim 1, It is characterized in that The welding device comprises a driving device, a ring body (501), a gear ring (502), an electromagnetic slip ring (503), a second electric cylinder (504) and a welding gun (505); the ring body (501) is rotatably mounted on the outer wall of the second shell (103) via a track; the gear ring (502) is rotatably mounted on the inner wall of the second shell (103) via a track; and the ring body (501) and the gear ring (502) are magnetically connected; the driving device is arranged in the second shell (103) and is used to drive the gear ring (502) to rotate; the electromagnetic slip ring (503) is mounted on the outer wall of the second shell (103); the second electric cylinder (504) is mounted on the outer wall of the ring body (501); and the welding gun (505) is mounted on the moving end of the second electric cylinder (504) via a bracket.
6. A damaged repairing device for a boiler tail flue economizer as claimed in claim 1, It is characterized in that The walking device comprises a plurality of sets of third electric cylinders (601), two sets of walking tracks (602) and a plurality of sets of universal balls (603); the plurality of sets of third electric cylinders (601) are respectively mounted on the outer side walls of the first shell (101) and the second shell (103); the two sets of walking tracks (602) are respectively mounted on the moving ends of the plurality of sets of third electric cylinders (601) on the first shell (101); and the plurality of sets of universal balls (603) are respectively mounted on the moving ends of the remaining plurality of sets of third electric cylinders (601).
7. A damaged repairing device for a boiler tail flue economizer as claimed in claim 1, It is characterized in that The pressure device comprises a second pump body (701) and a delivery pipe (702); the second pump body (701) is mounted on the inner side wall of the second housing (103); the delivery pipe (702) is connected to the output end of the second pump body (701); and the output end of the delivery pipe (702) is connected to the two groups of air bags (104).
8. A damaged repairing device for a boiler tail flue economizer as claimed in claim 5, It is characterized in that The driving device comprises a second motor (801) and a spur gear (802); the second motor (801) is mounted on the inner wall of the second housing (103); the spur gear (802) is arranged on the output end of the second motor (801); and the spur gear (802) meshes with the gear ring (502).
9. A damaged repairing device for a boiler tail flue economizer as claimed in claim 1 or 5, It is characterized in that It also includes multiple groups of cameras (901) and multiple groups of lighting lamps (902), which are respectively mounted on the outer wall of the first shell (101) and the outer wall of the ring body (501).
10. A damaged repairing device for a boiler tail flue economizer as claimed in claim 1, It is characterized in that It also includes a cable (1001), which is arranged on the outer side wall of the second shell (103) for communication.