CN111347337A - Automatic burnishing device suitable for reactor pressure vessel top cap seal structure - Google Patents
Automatic burnishing device suitable for reactor pressure vessel top cap seal structure Download PDFInfo
- Publication number
- CN111347337A CN111347337A CN201811574469.0A CN201811574469A CN111347337A CN 111347337 A CN111347337 A CN 111347337A CN 201811574469 A CN201811574469 A CN 201811574469A CN 111347337 A CN111347337 A CN 111347337A
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- Prior art keywords
- polishing
- wheel
- unit
- top cover
- pressure vessel
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- 238000005498 polishing Methods 0.000 claims abstract description 121
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 30
- 238000007689 inspection Methods 0.000 claims description 11
- 238000007517 polishing process Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 208000004350 Strabismus Diseases 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims description 2
- 238000011109 contamination Methods 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
Images
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
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
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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
- B24B41/02—Frames; Beds; Carriages
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to the technical field of nuclear power overhaul, and particularly discloses an automatic polishing device suitable for a top cover sealing structure of a reactor pressure vessel. The device comprises a polishing unit, a walking unit, a dust collection unit and a control unit, wherein the walking unit can be arranged at the top cover of the pressure container and moves along the outer cylindrical surface of the top cover of the pressure container; the polishing unit is arranged on the walking unit and can polish and polish the O-shaped sealing ring groove on the top cover of the pressure container; the dust collection unit is arranged on the walking unit and can suck dust generated by the polishing unit; the control unit is arranged on the walking unit and used for controlling the movement of the walking unit and grinding and polishing the sealing structure of the top cover of the pressure container. The automatic polishing and checking of the pressure container top cover sealing structure can be realized, manual polishing operation is replaced, the labor intensity of operators is reduced, the irradiated dose of the operators is reduced, and the contamination risk of the operators is reduced.
Description
Technical Field
The invention belongs to the technical field of nuclear power overhaul, and particularly relates to an automatic polishing device suitable for a top cover sealing structure of a reactor pressure vessel.
Background
The nuclear power plant must open reactor pressure vessel when overhaul reloads, in order to guarantee the pressure vessel leakproofness, need polish polishing and inspection to the O annular sealing face on the pressure vessel flange face top cap, get rid of and remain some foreign matters such as dust, rust stain and impression and mar that can influence its leakproofness on it to carry out video inspection to polishing surface, guarantee that the sealed face of top cap O annular after polishing and polishing satisfies sealed requirement. At present, the manual polishing mode is mostly adopted for polishing the sealing surface of the top cover of the domestic pressure container, and the problems that the labor intensity of operators is high, the contamination risk of the operators exposed in a radioactive dust environment is high and the like exist.
Disclosure of Invention
The invention aims to provide an automatic polishing device suitable for a sealing structure of a top cover of a reactor pressure vessel, which realizes automatic polishing of a sealing surface of the top cover of the reactor pressure vessel.
The technical scheme of the invention is as follows: the automatic polishing device comprises a polishing unit, a walking unit, a dust suction unit and a control unit, wherein the walking unit can be arranged at the top cover of the pressure vessel and moves along the outer cylindrical surface of the top cover of the pressure vessel; the polishing unit is arranged on the walking unit and can polish and polish the O-shaped sealing ring groove on the top cover of the pressure container; the dust collection unit is arranged on the walking unit and can suck dust generated by the polishing unit; the control unit is arranged on the walking unit and used for controlling the movement of the walking unit and grinding and polishing the sealing structure of the top cover of the pressure container.
The walking unit comprises a vehicle body, a walking wheel module and an in-groove guide wheel, wherein the vehicle body can be hung on the top cover of the reactor pressure vessel and can move along the outer cylindrical surface of the top cover of the reactor pressure vessel without deviation; the walking wheel module is integrally arranged on the bottom of the vehicle body and is adjusted to move up and down through the jackscrew, so that the walking wheel module is tightly attached to and separated from the flange surface of the top cover of the pressure vessel; the guide wheel in the groove is arranged on the lower end face of the bottom of the vehicle body, and when the vehicle body is arranged on the top cover of the pressure container, the guide wheel in the groove is embedded into the O-shaped groove on the outer side to provide guidance for the walking of the vehicle body.
The automobile body include davit, top guide pulley and bottom, bottom one side of dull and stereotyped structure is connected with the davit of frame construction, the davit can hang the automobile body on the pressure vessel top cap to install the top guide pulley in davit upper portion and pressure vessel top cap contact department and be used for providing supplementary direction for the automobile body, davit side is provided with the magnetism guide pulley with pressure vessel top cap contact department, makes the davit press close to the pressure vessel side all the time, moves and does not squint at the automobile body along pressure vessel top cap outer cylinder.
The polishing unit comprises a polishing wheel and a wheel cover, a reduction gearbox and a polishing motor, wherein the polishing wheel and the wheel cover comprise a polishing wheel and a polishing wheel which are arranged in front and back, the polishing motor is connected with the polishing wheel and the wheel cover through the reduction gearbox, and different rotating speeds are distributed for the polishing wheel and the polishing wheel through the reduction gearbox according to the process requirements of polishing and polishing.
The grinding wheel and the polishing wheel in the wheel cover are matched with the width and the depth of the two layers of O-shaped grooves in shape, the front end of the car body in advancing is the grinding wheel, the rear end of the car body is the polishing wheel, and the grinding wheel and the polishing wheel can grind and polish the two layers of O-shaped grooves simultaneously.
The polishing unit is connected with the car body through a linear guide rail, namely a linear cylinder, and the vertical movement of the polishing unit and the adhesion degree of the polished surface are controlled through the linear cylinder.
The dust collection unit comprises a dust collection barrel and a corrugated pipe, wherein the dust collection barrel is arranged on the vehicle body and is connected with a polishing wheel and a wheel cover in the polishing unit through the corrugated pipe, and the dust collection barrel works to enable the wheel cover to keep a certain negative pressure in the polishing process, so that dust generated by polishing is sucked into the dust collection barrel.
The device also comprises a video inspection unit, wherein the video inspection unit comprises a camera, a light source and a camera bracket, and in the polishing process, the polished sealing surface images of the O-ring grooves on the inner side and the outer side are synchronously inspected and recorded, so that a basis is provided for judging the polishing effect.
The invention has the following remarkable effects: the automatic polishing device for the sealing structure of the top cover of the reactor pressure vessel can realize automatic polishing and inspection of the sealing structure of the top cover of the pressure vessel (O-ring groove of the top cover of the pressure vessel), replace manual polishing operation, reduce the labor intensity of operators, reduce the exposure dose of the operators and reduce the contamination risk of the operators. Meanwhile, the automatic polishing device can be guaranteed to move along the O-shaped groove of the pressure container top cover all the time, and the polishing wheel cover the sealing surface of the O-shaped groove of the pressure container top cover all the time. In addition, the contact between the polishing wheel and the sealing surface of the O-shaped ring groove and the polishing wheel is constant in the polishing process, so that the polishing uniformity is ensured.
Drawings
FIG. 1 is a schematic structural diagram of an automatic polishing device suitable for a reactor pressure vessel top cover sealing structure according to the present invention;
FIG. 2 is a partial enlarged view of an automatic polishing device for a reactor pressure vessel head cover sealing structure according to the present invention;
FIG. 3 is another side view of FIG. 2;
FIG. 4 is a schematic diagram of a vehicle body structure of an automatic polishing device suitable for a reactor pressure vessel head cover sealing structure according to the present invention;
in the figure: 1. a vehicle body; 2. a traveling wheel; 3. carrying out top thread; 4. a walking motor and a transmission device; 5. a video inspection unit; 6. a guide wheel in the groove; 7. polishing the polishing wheel and the wheel cover; 8. a reduction gearbox; 9. a linear cylinder; 10. grinding and polishing the motor; 11. a suspension arm; 12. a top guide wheel; 13. a magnetic guide wheel; 14. a bottom portion.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments. 19923611346
As shown in fig. 1 to 4, an automatic polishing apparatus suitable for a reactor pressure vessel top cover sealing structure comprises a polishing unit, a walking unit, a dust absorption unit, a video inspection unit and a control unit, wherein the walking unit can be installed at a pressure vessel top cover, and a polishing unit installed on the walking unit is used for polishing and polishing a sealing O-ring groove on the pressure vessel top cover; the dust collection unit and the video inspection unit are arranged on the walking unit, dust generated by the polishing unit is sucked by the dust collection unit, and a video detection unit is used for carrying out video monitoring on a grinding and polishing area of the sealing O-shaped ring groove; the control unit is arranged on the walking unit and used for controlling the movement of the walking unit and polishing the sealing structure of the top cover of the pressure container.
The walking unit comprises a vehicle body 1, a walking wheel module and an in-groove guide wheel 6, wherein the vehicle body 1 can be hung on a top cover of a reactor pressure vessel and specifically comprises a suspension arm 11, a top guide wheel 12 and a bottom 14, one side of the bottom 14 of a flat plate structure is connected with the suspension arm 11 of a frame structure, the suspension arm 11 can hang the vehicle body 1 on the top cover of the reactor pressure vessel, the top guide wheel 12 is installed at the contact position of the upper part of the suspension arm 11 and the top cover of the reactor pressure vessel and used for providing auxiliary guide for the vehicle body 1, a magnetic guide wheel 13 is arranged at the contact position of the side surface of the suspension arm 11 and the top cover of the reactor pressure vessel, so that the suspension arm 11 is always close to the; the walking wheel module comprises a walking motor, a transmission device and walking wheels 2, wherein the walking wheel module is integrally installed on the bottom 14 of the vehicle body 1, and the walking wheel module is adjusted to move up and down through jackscrews 3, so that the walking wheel module is tightly attached to and separated from a flange surface of a top cover of the pressure vessel; when the travelling wheel module is tightly attached to the flange surface of the top cover of the pressure vessel, the travelling wheel 2 can be used for rotating to drive the vehicle body 1 to move; the guide wheel 6 in the groove is arranged on the lower end surface of the bottom 14 of the car body 1, when the car body 1 is arranged on a top cover of a pressure container, the guide wheel 6 in the groove is embedded into the O-shaped groove on the outer side to provide guidance for the walking of the car body 1 and enable the car body to walk along the O-shaped groove all the time, so that the polishing wheel and the grinding wheel in the polishing unit can be ensured to cover the sealing surface of the O-shaped groove all the time;
the polishing unit is connected with the car body 1 through a linear guide rail and a linear cylinder 9, and the vertical movement of the polishing unit and the adhesion degree of the polishing unit and the polished surface are controlled through the linear cylinder 9; the polishing unit comprises a polishing wheel and wheel cover 7, a reduction gearbox 8 and a polishing motor 10, wherein the polishing wheel and wheel cover 7 comprises a polishing wheel and a polishing wheel which are arranged in front and back, the shapes of the polishing wheel and the polishing wheel are matched with the width and the depth of the two layers of O-shaped ring grooves, the front end of the vehicle body 1 is the polishing wheel, the rear end of the vehicle body is the polishing wheel, and the polishing wheel can simultaneously polish and polish the two layers of O-shaped ring grooves; the grinding and polishing motor 10 is connected with the grinding and polishing wheel and the wheel cover 7 through the reduction box 8, and different rotating speeds are distributed for the grinding wheel and the polishing wheel through the reduction box according to the process requirements of grinding and polishing;
the dust collection unit comprises a dust collection barrel and a corrugated pipe, wherein the dust collection barrel is arranged on the vehicle body 1 and is connected with a grinding and polishing wheel and a wheel cover 7 in the polishing unit through the corrugated pipe; the video inspection unit comprises a camera, a light source and a camera support, and in the polishing process, the polished inner and outer side O-ring groove sealing surface images are synchronously inspected and recorded, so that a basis is provided for judging the polishing effect.
Claims (8)
1. The utility model provides an automatic burnishing device suitable for reactor pressure vessel top cap seal structure which characterized in that: the device comprises a polishing unit, a walking unit, a dust collection unit and a control unit, wherein the walking unit can be arranged at the top cover of the pressure container and moves along the outer cylindrical surface of the top cover of the pressure container; the polishing unit is arranged on the walking unit and can polish and polish the O-shaped sealing ring groove on the top cover of the pressure container; the dust collection unit is arranged on the walking unit and can suck dust generated by the polishing unit; the control unit is arranged on the walking unit and used for controlling the movement of the walking unit and grinding and polishing the sealing structure of the top cover of the pressure container.
2. The automatic polishing device for the sealing structure of the top cover of the reactor pressure vessel as claimed in claim 1, wherein: the walking unit comprises a vehicle body (1), a walking wheel module and an in-groove guide wheel (6), wherein the vehicle body (1) can be hung on a top cover of the reactor pressure vessel and can move along the outer cylindrical surface of the top cover of the reactor pressure vessel without deviation; the walking wheel module is integrally arranged on the bottom (14) of the vehicle body (1), and the walking wheel module is adjusted to move up and down through the jackscrew (3), so that the walking wheel module is tightly attached to and separated from the flange surface of the top cover of the pressure vessel; the in-groove guide wheel (6) is arranged on the lower end face of the bottom (14) of the vehicle body (1), and when the vehicle body (1) is arranged on a top cover of a pressure container, the in-groove guide wheel (6) is embedded into an O-shaped groove on the outer side to provide guidance for the walking of the vehicle body (1).
3. The automatic polishing device for the sealing structure of the top cover of the reactor pressure vessel as claimed in claim 2, wherein: the automobile body (1) include davit (11), top guide pulley (12) and bottom (14), bottom (14) one side of dull and stereotyped structure is connected with davit (11) of frame construction, davit (11) can hang automobile body (1) on the pressure vessel top cap, and install top guide pulley (12) in davit (11) upper portion and pressure vessel top cap contact department and be used for providing supplementary direction for automobile body 1, davit (11) side and pressure vessel top cap contact department are provided with magnetism guide pulley (13), make davit (11) press close to the pressure vessel side all the time, move and do not squint along pressure vessel top cap outer cylinder at automobile body (1).
4. The automatic polishing device for the sealing structure of the top cover of the reactor pressure vessel as claimed in claim 1, wherein: the polishing unit comprises a polishing wheel and a wheel cover (7), a reduction gearbox (8) and a polishing motor (10), wherein the polishing wheel and the wheel cover (7) comprise a polishing wheel and a polishing wheel which are arranged in front and back, the polishing motor (10) is connected with the polishing wheel and the wheel cover (7) through the reduction gearbox (8), and different rotating speeds are distributed for the polishing wheel and the polishing wheel through the reduction gearbox according to the process requirements of polishing and polishing.
5. The automatic polishing device for the sealing structure of the top cover of the reactor pressure vessel as claimed in claim 4, wherein: the polishing wheel and the polishing wheel in the wheel cover (7) are matched with the width and the depth of the two layers of O-shaped grooves in shape, the front end of the car body (1) in the advancing process is the polishing wheel, the rear end of the car body is the polishing wheel, and the polishing wheel can polish and polish the two layers of O-shaped grooves simultaneously.
6. The automatic polishing device for the sealing structure of the top cover of the reactor pressure vessel as claimed in claim 4, wherein: the polishing unit is connected with the car body (1) through a linear guide rail, namely a linear cylinder (9), and the vertical movement of the polishing unit and the adhesion degree of the polished surface are controlled through the linear cylinder (9).
7. The automatic polishing device for the sealing structure of the top cover of the reactor pressure vessel as claimed in claim 1, wherein: the dust collection unit comprises a dust collection barrel and a corrugated pipe, wherein the dust collection barrel is arranged on the vehicle body (1) and is connected with a polishing wheel and a wheel cover (7) in the polishing unit through the corrugated pipe, and the wheel cover is kept at a certain negative pressure by the working of the dust collection barrel in the polishing process, so that dust generated by polishing is sucked into the dust collection barrel.
8. The automatic polishing device for the sealing structure of the top cover of the reactor pressure vessel as claimed in claim 1, wherein: the device also comprises a video inspection unit, wherein the video inspection unit comprises a camera, a light source and a camera bracket, and in the polishing process, the polished sealing surface images of the O-ring grooves on the inner side and the outer side are synchronously inspected and recorded, so that a basis is provided for judging the polishing effect.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811574469.0A CN111347337A (en) | 2018-12-21 | 2018-12-21 | Automatic burnishing device suitable for reactor pressure vessel top cap seal structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811574469.0A CN111347337A (en) | 2018-12-21 | 2018-12-21 | Automatic burnishing device suitable for reactor pressure vessel top cap seal structure |
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CN111347337A true CN111347337A (en) | 2020-06-30 |
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CN201811574469.0A Pending CN111347337A (en) | 2018-12-21 | 2018-12-21 | Automatic burnishing device suitable for reactor pressure vessel top cap seal structure |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111799002A (en) * | 2020-07-14 | 2020-10-20 | 核动力运行研究所 | Top cap video inspection device |
CN112570410A (en) * | 2020-12-29 | 2021-03-30 | 中核武汉核电运行技术股份有限公司 | Reactor pressure vessel top cover sealing ring groove crawling device and cleaning method |
CN112643511A (en) * | 2020-12-31 | 2021-04-13 | 中核武汉核电运行技术股份有限公司 | Constant-force pressing and adjusting device for cleaning operation of sealing surface |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63207555A (en) * | 1987-02-19 | 1988-08-26 | Toshiba Corp | Vessel flange face survey instrument |
CN103949943A (en) * | 2013-11-29 | 2014-07-30 | 中科华核电技术研究院有限公司 | Automatic polishing machine for flange surface of rotary body |
CN208019984U (en) * | 2018-03-19 | 2018-10-30 | 胜狮物流(青岛)有限公司 | A kind of floor for refrigerated container automatically grinding equipment |
CN209520736U (en) * | 2018-12-21 | 2019-10-22 | 核动力运行研究所 | A kind of automatic polishing device suitable for top cover of reactor pressure vessel sealing structure |
-
2018
- 2018-12-21 CN CN201811574469.0A patent/CN111347337A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63207555A (en) * | 1987-02-19 | 1988-08-26 | Toshiba Corp | Vessel flange face survey instrument |
CN103949943A (en) * | 2013-11-29 | 2014-07-30 | 中科华核电技术研究院有限公司 | Automatic polishing machine for flange surface of rotary body |
CN103949962A (en) * | 2013-11-29 | 2014-07-30 | 中科华核电技术研究院有限公司 | Automatic polishing machine for sealing groove of rotary body |
CN208019984U (en) * | 2018-03-19 | 2018-10-30 | 胜狮物流(青岛)有限公司 | A kind of floor for refrigerated container automatically grinding equipment |
CN209520736U (en) * | 2018-12-21 | 2019-10-22 | 核动力运行研究所 | A kind of automatic polishing device suitable for top cover of reactor pressure vessel sealing structure |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111799002A (en) * | 2020-07-14 | 2020-10-20 | 核动力运行研究所 | Top cap video inspection device |
CN112570410A (en) * | 2020-12-29 | 2021-03-30 | 中核武汉核电运行技术股份有限公司 | Reactor pressure vessel top cover sealing ring groove crawling device and cleaning method |
CN112570410B (en) * | 2020-12-29 | 2024-01-12 | 中核武汉核电运行技术股份有限公司 | Crawling device and cleaning method for top cover sealing ring groove of reactor pressure vessel |
CN112643511A (en) * | 2020-12-31 | 2021-04-13 | 中核武汉核电运行技术股份有限公司 | Constant-force pressing and adjusting device for cleaning operation of sealing surface |
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