CN113103130A - Power station boiler water wall inspection device - Google Patents
Power station boiler water wall inspection device Download PDFInfo
- Publication number
- CN113103130A CN113103130A CN202110523221.7A CN202110523221A CN113103130A CN 113103130 A CN113103130 A CN 113103130A CN 202110523221 A CN202110523221 A CN 202110523221A CN 113103130 A CN113103130 A CN 113103130A
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- Prior art keywords
- fixed
- joint
- boiler water
- water wall
- inspection device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a power station boiler water wall inspection device which comprises an upper computer, a steel wire rope, a cross beam, a winch, an electric trolley and a controller, wherein the upper computer is connected with the steel wire rope; wire rope's one end is fixed in on the crossbeam, and wire rope's the other end is connected on the hoist engine, is provided with the guide rail on the crossbeam, and the wheel of electronic dolly is located the guide rail, is provided with on the electronic dolly and sweeps grinding device, high definition digtal camera and mark device, and wherein, host computer, hoist engine, sweep grinding device, high definition digtal camera and mark device all are connected with the controller, and the device can realize the inspection to boiler water-cooling wall, and the security is higher.
Description
Technical Field
The invention belongs to the technical field of boiler maintenance equipment, and relates to a power station boiler water wall inspection device.
Background
The boiler is an important device of a thermal power plant, the water-cooled wall is an important part of the boiler, the height of the boiler basically penetrates through the whole hearth, the size of the boiler is different according to different unit capacities, and the height of the water-cooled wall is different from 60 meters to more than 100 meters. At present, the detection method of the boiler water wall mainly comprises two types of operation monitoring and shutdown inspection, wherein the operation monitoring is to monitor the wall temperature of the water wall pipe at different parts by using temperature measuring points during the operation of the boiler, and a key inspection part during maintenance is determined by judging whether the amplitude and the frequency of temperature fluctuation are in a normal range or not; the shutdown inspection is carried out by means of macroscopic, thickness measurement, nondestructive testing and the like when inspectors reach a detected area during boiler maintenance. The main process of the shutdown check is as follows: 1) cooling a boiler: slowly cooling the whole boiler to a certain temperature and then ventilating and cooling to reach the temperature condition that people are allowed to enter; 2) preparing on site: a lifting platform is built and lighting and ventilation equipment is installed in the boiler, and the process is nearly 10 days; 3) carrying out inspection: and the staff enters the water wall for inspection. At present, the shutdown inspection of the water wall mainly depends on manpower, the working environment is severe, the potential safety hazard is large, the inspection difficulty is large, the cost is high, and in addition, the overhaul time of the boiler is generally only 7 to 30 days, and the main time cost of the detection of the water wall is in the preparation work of building or dismantling a platform, installing illumination, ventilation and the like. In order to solve the difficulties, professional technicians design various water-cooled wall climbing robots, the wall climbing robots are adsorbed on the water-cooled walls by magnets, a magnetic adsorption wheel type walking mode is adopted, and a vehicle body is connected with a lifting platform. The magnetic adsorption device has the defects of complex mechanical structure, heavy weight and high manufacturing cost, rotating parts such as wheels, gear boxes and the like are easy to break down when working in a severe environment, and simultaneously, because the magnetic adsorption device is adsorbed on a water-cooled wall by adopting magnets, the magnetic adsorption device can fall off when encountering coking or wall deformation and the like in the walking process, so that the device falls; limited by the defects, the existing wall climbing robot is still in the research and development stage and is rarely and really applied to water wall inspection.
In order to change the current situation of manually inspecting the water wall of the boiler at present and overcome the defects of the existing inspection robot, a new inspection device for the water wall of the utility boiler needs to be researched so as to adapt to the requirements of production development.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device for inspecting the water wall of a power station boiler, which can inspect the water wall of the boiler and has high safety.
In order to achieve the aim, the inspection device for the water wall of the power station boiler comprises an upper computer, a steel wire rope, a cross beam, a winch, an electric trolley and a controller;
wire rope's one end is fixed in on the crossbeam, and wire rope's the other end is connected on the hoist engine, is provided with the guide rail on the crossbeam, and the wheel of electronic dolly is located the guide rail, is provided with on the electronic dolly to sweep grinding device, high definition digtal camera and mark device, and wherein, host computer, hoist engine, sweep grinding device, high definition digtal camera and mark device all are connected with the controller.
The blowing and polishing device comprises a compressed air hose, a fixed joint, a sliding joint, a pneumatic polishing disc and a compressed air hose; the fixed knot is fixed in on the electric trolley, the one end of slip festival is connected with pneumatic grinding disc, the head that the other end of slip festival passed the fixed knot inserts in the fixed knot, be provided with the spring in the fixed knot, the one end of spring is connected with the tip of slip festival, the other end of spring is fixed in on the inner wall of fixed knot, the afterbody interface of fixed knot is connected with the compressed air hose, and the afterbody kneck of fixed knot is provided with the control valve, be provided with the circular gas pocket that is used for supplying compressed gas to pass through on the slip festival, the controller is connected with the control valve, pneumatic grinding disc is laminated with the surface of water-cooling wall mutually.
The fixed joint and the sliding joint are of sleeve structures, and the sliding joint is embedded into the fixed joint.
The fixed knot is fixed on the electric trolley through the supporting frame.
The marking device comprises a tank with positive pressure marking liquid and an angle-adjustable nozzle, wherein the nozzle is communicated with an outlet of the tank, a control switch is arranged at the outlet of the tank, and a controller is connected with the control switch.
The dust-proof trolley is characterized by further comprising a dust-proof box, wherein the dust-proof box is fixed on the electric trolley, an automatic door is arranged on the dust-proof box, a control end of the automatic door is connected with the controller, and the high-definition camera and the marking device are installed in the dust-proof box.
And a compressed air purging device for cleaning the high-definition camera is arranged in the dustproof box.
The number of the steel wire ropes is two, the two steel wire ropes are respectively fixed at two ends of the cross beam, and the winch is a coaxial winch.
The invention has the following beneficial effects:
when the inspection device for the water wall of the power station boiler is operated specifically, the winch drives the steel wire rope to act, so that the cross beam keeps horizontally and uniformly rising or falling to a specified height, the cross beam is provided with the guide rail matched with the electric trolley, and the electric trolley drives the blowing and polishing device, the high-definition camera and the marking device to horizontally move at a constant speed, so that the whole water wall surface is covered and inspected, whether defects exist or not is detected, various problems caused by artificial inspection are avoided, and the problems of complex structure, heavy weight and high manufacturing cost in the detection of a wall climbing robot are avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the electric cart 4 and the connecting member;
FIG. 3 is a rear view of the electric cart 4 and the connecting member;
fig. 4 is a side view of the electric cart 4 and the connecting member.
The device comprises a controller 1, a cross beam 2, a guide rail 3, an electric trolley 4, wheels 41, a blowing and polishing device 5, a control valve 51, a fixed joint 52, a sliding joint 53, a spring 54, a pneumatic polishing disc 55, a high-definition camera 6, a marking device 7, a steel wire rope 8, a winch 9, a power line 10, a compressed air hose 11, a dust-proof box 12 and a supporting frame 13, wherein the controller is arranged on the cross beam 2, the guide rail 3, the electric trolley 4, the wheels 41, the blowing and polishing device 5.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 to 4, the inspection device for the water wall of the power station boiler comprises an upper computer, a steel wire rope 8, a cross beam 2, a winch 9, an electric trolley 4 and a controller 1; one end of a steel wire rope 8 is fixed on the cross beam 2, the other end of the steel wire rope 8 is connected on the winch 9, the controller 1 is connected with the control end of the winch 9, in operation, after the winch 9 receives a control signal of the controller 1, the two steel wire ropes 8 are driven to synchronously move, the cross beam 2 keeps level uniform ascending or descending to a specified height, the cross beam 2 is provided with a guide rail 3 matched with the electric trolley 4, the electric trolley 4 drives the blowing and polishing device 5, the high-definition camera 6 and the marking device 7 to horizontally move at a uniform speed, and therefore the covering inspection of the whole water-cooled wall surface is achieved, and the positions of determination and defects are detected.
The blowing and grinding device 5 comprises a compressed air hose 11, a fixed joint 52, a sliding joint 53, a pneumatic grinding disc 55 and the compressed air hose 11; the fixed joint 52 is fixed on the electric trolley 4 through the supporting frame 13, one end of the sliding joint 53 is connected with the pneumatic polishing disc 55, the other end of the sliding joint 53 is inserted into the fixed joint 52 through the head of the fixed joint 52, a spring 54 is arranged in the fixed joint 52, one end of the spring 54 is connected with the end part of the sliding joint 53, the other end of the spring 54 is fixed on the inner wall of the fixed joint 52, the tail interface of the fixed joint 52 is connected with the compressed air hose 11, a control valve 51 is arranged at the tail interface of the fixed joint 52, and a circular air hole for compressed air to pass through is arranged on the sliding joint 53; during operation, compressed air enters the fixed joint 52 through the tail interface and the control valve 51 and is discharged through the circular air hole, wherein when the compressed air is not discharged from the circular air hole, the sliding joint 53 is pushed to extend out, the pneumatic polishing disc 55 is pushed to work, finally the compressed air overflows from the side face of the pneumatic polishing disc 55, synchronous purging and polishing are achieved, and after one-time blowing is completed, the compressed air is reset under the action of the spring 54. Wherein, fixed knot 52 and slip knot 53 are the sleeve structure, and pneumatic abrasive disc 55 and the laminating of water-cooling wall surface. The length of the sliding joint 53 and the degree of adhesion of the pneumatic polishing disk 55 to the surface of the water wall are determined by the pressure of the compressed air, which is controlled by the control valve 51.
When the water cooling wall surface marking device works, the high-definition camera 6 transmits the shot water cooling wall surface state to an upper computer through the controller 1, the upper computer identifies defects through automatic identification software, when the defects are identified, recording is carried out, signals are synchronously returned to the controller 1, and the controller 1 controls the marking device 7 to mark.
The marking device 7 comprises a tank with positive pressure marking liquid and an angle-adjustable nozzle, wherein the nozzle is communicated with an outlet of the tank, a control switch is arranged at the outlet of the tank, the controller 1 is connected with the control switch, and the deviation caused by the height difference between the marking device 7 and the high-definition camera 6 can be corrected through the angle-adjustable nozzle.
The high-definition camera 6 and the marking device 7 are arranged in the dust-proof box 12, and in the process of performing purging and grinding on the surface of the water-cooled wall, the automatic door of the dust-proof box 12 is closed to prevent dust from entering; the dust-proof box 12 is internally provided with a compressed air purging device for cleaning the high-definition camera 6, and the control end of the automatic door is connected with the controller.
The control process can use a single chip microcomputer, a programmable controller, a wireless network and other modern control devices and systems, so that the control process is automated to achieve a better control effect, and the structures and the configurations do not belong to the scope of the invention and are not described again.
Claims (8)
1. A power station boiler water wall inspection device is characterized by comprising an upper computer, a steel wire rope (8), a cross beam (2), a winch (9), an electric trolley (4) and a controller (1); one end of a steel wire rope (8) is fixed on the cross beam (2), the other end of the steel wire rope (8) is connected onto the winch (9), the guide rail (3) is arranged on the cross beam (2), wheels (41) of the electric trolley (4) are located on the guide rail (3), the electric trolley (4) is provided with a sweeping and polishing device (5), a high-definition camera (6) and a marking device (7), and the upper computer, the winch (9), the sweeping and polishing device (5), the high-definition camera (6) and the marking device (7) are all connected with the controller (1).
2. The utility boiler water wall inspection device according to claim 1, characterized in that the purge grinding device (5) comprises a compressed air hose (11), a fixed joint (52), a sliding joint (53) and a pneumatic grinding disc (55); the fixed joint (52) is fixed on the electric trolley (4), one end of the sliding joint (53) is connected with the pneumatic polishing disc (55), the other end of the sliding joint (53) penetrates through the head of the fixed joint (52) and is inserted into the fixed joint (52), a spring (54) is arranged in the fixed joint (52), one end of the spring (54) is connected with the end of the sliding joint (53), the other end of the spring (54) is fixed on the inner wall of the fixed joint (52), the tail interface of the fixed joint (52) is connected with the compressed air hose (11), a control valve (51) is arranged at the tail interface of the fixed joint (52), a circular air hole for compressed air to pass through is formed in the sliding joint (53), the controller (1) is connected with the control valve (51), and the pneumatic polishing disc (55) is attached to the surface of a water cooling wall.
3. The power station boiler water wall inspection device according to claim 2, characterized in that the fixed joint (52) and the sliding joint (53) are of a sleeve structure, and the sliding joint (53) is nested in the fixed joint (52).
4. The power station boiler water wall inspection device according to claim 2, characterized in that the fixed joint (52) is fixed to the electric cart (4) by a support bracket (13).
5. The utility boiler water wall inspection device according to claim 1, characterized in that the marking device (7) comprises a tank with positive pressure marking liquid and an angularly adjustable nozzle, wherein the nozzle is in communication with the outlet of the tank, and the outlet of the tank is provided with a control switch, and the controller (1) is connected with the control switch.
6. The utility boiler water wall inspection device according to claim 1, characterized by further comprising a dust box (12), wherein the dust box (12) is fixed on the electric trolley (4), an automatic door is arranged on the dust box (12), a control end of the automatic door is connected with the controller (1), and a high-definition camera (6), a marking device (7) and a compressed air purging device for cleaning the high-definition camera (6) are installed in the dust box (12).
7. The utility boiler water wall inspection device according to claim 1, characterized in that the number of wire ropes (8) is two.
8. The utility boiler water wall inspection device according to claim 1, characterized in that two wire ropes (8) are fixed to both ends of the beam (2) respectively, and the winch (9) is a coaxial winch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110523221.7A CN113103130A (en) | 2021-05-13 | 2021-05-13 | Power station boiler water wall inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110523221.7A CN113103130A (en) | 2021-05-13 | 2021-05-13 | Power station boiler water wall inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113103130A true CN113103130A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110523221.7A Pending CN113103130A (en) | 2021-05-13 | 2021-05-13 | Power station boiler water wall inspection device |
Country Status (1)
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| CN (1) | CN113103130A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106709A2 (en) * | 1982-06-23 | 1984-04-25 | International Robotic Engineering Inc. | Robot capable of moving on inclined or vertical surfaces |
| CN103510688A (en) * | 2013-09-25 | 2014-01-15 | 上海晶湛机电有限公司 | Automatic wall polisher |
| CN104260797A (en) * | 2014-10-11 | 2015-01-07 | 河北大唐国际王滩发电有限责任公司 | Examination robot for water-cooled wall of large boiler |
| CN105973977A (en) * | 2016-07-07 | 2016-09-28 | 江苏方天电力技术有限公司 | Device and method for detecting annular cracks of fire facing side of water-cooling wall of boiler |
| CN105973978A (en) * | 2016-07-07 | 2016-09-28 | 江苏方天电力技术有限公司 | Device and method for automatically detecting annular cracks of fire facing side of water-cooling wall of boiler |
| US20180207838A1 (en) * | 2017-01-20 | 2018-07-26 | Cambria Company Llc | Slab cutting apparatus and method |
| CN110757277A (en) * | 2019-10-22 | 2020-02-07 | 南京航空航天大学 | High-rise outer wall polishing equipment |
| CN210109030U (en) * | 2018-12-28 | 2020-02-21 | 核动力运行研究所 | Ultrasonic automatic inspection device for pressure vessel of high-temperature gas cooled reactor nuclear reactor |
| CN111469952A (en) * | 2020-05-08 | 2020-07-31 | 东阳故宏机械科技有限公司 | Equipment for detecting steel structure building |
-
2021
- 2021-05-13 CN CN202110523221.7A patent/CN113103130A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106709A2 (en) * | 1982-06-23 | 1984-04-25 | International Robotic Engineering Inc. | Robot capable of moving on inclined or vertical surfaces |
| CN103510688A (en) * | 2013-09-25 | 2014-01-15 | 上海晶湛机电有限公司 | Automatic wall polisher |
| CN104260797A (en) * | 2014-10-11 | 2015-01-07 | 河北大唐国际王滩发电有限责任公司 | Examination robot for water-cooled wall of large boiler |
| CN105973977A (en) * | 2016-07-07 | 2016-09-28 | 江苏方天电力技术有限公司 | Device and method for detecting annular cracks of fire facing side of water-cooling wall of boiler |
| CN105973978A (en) * | 2016-07-07 | 2016-09-28 | 江苏方天电力技术有限公司 | Device and method for automatically detecting annular cracks of fire facing side of water-cooling wall of boiler |
| US20180207838A1 (en) * | 2017-01-20 | 2018-07-26 | Cambria Company Llc | Slab cutting apparatus and method |
| CN210109030U (en) * | 2018-12-28 | 2020-02-21 | 核动力运行研究所 | Ultrasonic automatic inspection device for pressure vessel of high-temperature gas cooled reactor nuclear reactor |
| CN110757277A (en) * | 2019-10-22 | 2020-02-07 | 南京航空航天大学 | High-rise outer wall polishing equipment |
| CN111469952A (en) * | 2020-05-08 | 2020-07-31 | 东阳故宏机械科技有限公司 | Equipment for detecting steel structure building |
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Application publication date: 20210713 |
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