CN218801361U - Cleaning device for top cover of reactor pressure vessel - Google Patents
Cleaning device for top cover of reactor pressure vessel Download PDFInfo
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- CN218801361U CN218801361U CN202223235036.7U CN202223235036U CN218801361U CN 218801361 U CN218801361 U CN 218801361U CN 202223235036 U CN202223235036 U CN 202223235036U CN 218801361 U CN218801361 U CN 218801361U
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- cleaning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model provides a belt cleaning device for reactor pressure vessel top cap relates to reactor pressure vessel top cap belt cleaning device's technical field, a belt cleaning device for reactor pressure vessel top cap, including walking bracket and washing support, walking bracket is equipped with the drive assembly who crawls along the pressure vessel top cap, washs the support and is equipped with the washing subassembly that is used for wasing the pressure vessel top cap, and walking bracket and wasing can dismantle between the support and be connected. Such a belt cleaning device for reactor pressure vessel top cap can realize wasing the pressure vessel top cap, also reduced simultaneously when the installation with the O type seal ring between collide with, guaranteed the integrality and the security of pressure vessel top cap.
Description
Technical Field
The utility model relates to a reactor pressure vessel top cap belt cleaning device's technical field particularly, relates to a belt cleaning device for reactor pressure vessel top cap.
Background
Under the working condition of overhaul of the nuclear power plant unit, the integrated top cover is hung to the position of the top cover storage rack, and a top cover sealing ring groove needs to be cleaned before a new O-shaped sealing ring is replaced. In the cleaning process of the top cover sealing ring groove in the overhaul process of the unit, certain dirt, silver powder, boron crystals and the like exist in the sealing ring groove after a period of operation, the processing mode is to use white silk cloth or wiping paper soaked by absolute ethyl alcohol to wipe off the silver powder, and due to the fact that the manual cleaning efficiency is low, the silver powder at the corner position of a part of the silver powder cannot be cleaned thoroughly, silver ions are likely to enter a loop system, and the radiation dose is increased sharply in the overhaul process or under other working conditions. Silver ions are contained in boron-containing water of a material changing pool detected by a certain nuclear power plant in the overhaul period, so that the water surface dosage of the material changing pool is increased by times, and the radiation dosage of personnel is increased by times in the whole overhaul period.
In the existing pressure vessel top cover cleaning, a manual cleaning mode is often adopted, but the manual cleaning efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a belt cleaning device for reactor pressure vessel top cap can realize wasing the pressure vessel top cap, also reduced simultaneously when the installation with O type seal ring groove between collide with, guaranteed the integrality and the security of pressure vessel top cap.
The embodiment of the utility model is realized like this:
the embodiment of the application provides a belt cleaning device for reactor pressure vessel top cap, including walking support and washing support, walking support is equipped with the drive assembly who crawls along the pressure vessel top cap, washs the support and is equipped with the washing subassembly that is used for wasing the pressure vessel top cap, can dismantle between walking support and the washing support and be connected.
The cleaning assembly can clean the pressure vessel top cover, and the driving assembly can drive the walking support and the cleaning support to move along the pressure vessel top cover, so that the efficiency of cleaning the pressure vessel top cover is improved.
The walking bracket and the cleaning bracket are used for bearing equipment such as a driving assembly, a cleaning assembly and the like, so that the walking bracket and the cleaning bracket are large in size, and when the walking bracket and the cleaning bracket are integrally designed, the walking bracket and the cleaning bracket are difficult to install on a top cover of a pressure container, and the use efficiency of the cleaning device is influenced; meanwhile, the walking support and the cleaning support which are integrally designed are easy to collide with an O-shaped sealing ring groove of the top cover of the container during installation, so that potential safety hazards are caused. In the embodiment, the walking support and the cleaning support are detachably connected, so that the walking support and the cleaning support can be independently positioned, the walking support and the cleaning support can be sequentially installed in the installation process, the installation efficiency is improved, the collision between the walking support and the O-shaped sealing ring groove in the installation process is also reduced, and the integrity and the safety of the top cover of the pressure container are ensured.
The utility model discloses an in some embodiments, the walking support is equipped with first boss, washs the support and is equipped with the second boss, and first boss passes through bolted connection with the second boss.
The first boss and the second boss protrude out of the walking support and the cleaning support respectively, so that the walking support and the cleaning support can be fixed conveniently by using bolts, independent punching on the walking support and the cleaning support is not needed, and the structural integrity of the walking support and the cleaning support is guaranteed.
When the cleaning bracket is used, the first boss and the second boss are provided with bolt holes communicated with each other, when the walking bracket and the cleaning bracket are installed together, the bolt penetrates through the bolt holes of the first boss and the second boss, and then the nut is screwed down. When the walking support is separated from the cleaning support, the nut is unscrewed, and then the bolt is pulled out of the bolt hole.
In some embodiments of the present invention, a fixed pull rod is disposed between the traveling bracket and the cleaning bracket.
After the walking support and the cleaning support are installed, the fixed pull rod can be installed on the walking support and the cleaning support, one end of the fixed pull rod is connected to the walking support, the other end of the fixed pull rod is connected to the cleaning support, the connecting strength between the walking support and the cleaning support is enhanced, and the structural stability of the cleaning device in long-term use is guaranteed.
In some embodiments of the utility model, the one end of fixed pull rod can be dismantled with the walking support and be connected, and the other end of fixed pull rod can be dismantled with the washing support and be connected.
The fixed pull rod can be connected with the walking support and the cleaning support through bolts, and the fixed pull rod is convenient to detach after use. During installation, the bolt can pass through the fixed pull rod and be screwed into the walking bracket or the cleaning bracket.
In some embodiments of the present invention, the walking bracket is provided with a limiting magnet for limiting.
The limiting magnet is positioned between the walking bracket and the pressure vessel top cover. The pressure vessel top cap often adopts the iron material that can be attracted by magnet, exists suction between spacing magnet and the pressure vessel top cap, and this suction further drives the walking support and is close to the pressure vessel top cap, prevents that belt cleaning device from coming off from the pressure vessel top cap.
The utility model discloses an in some embodiments, be equipped with the telescopic link between spacing magnet and the walking support, the one end of telescopic link is installed in the walking support, and spacing magnet is located the other end of telescopic link.
Spacing magnet is located between walking support and the pressure vessel top cap, and when spacing magnet kept away from the walking support, spacing magnet then was close to the pressure vessel top cap. Meanwhile, the suction force between the limiting magnet and the pressure vessel top cover depends on the distance between the limiting magnet and the pressure vessel top cover, and the closer the limiting magnet is to the pressure vessel top cover, the stronger the suction force between the limiting magnet and the pressure vessel top cover is, and vice versa.
The telescopic rod can be a threaded sleeve rod, the threaded sleeve rod comprises an external threaded rod and an internal threaded barrel for accommodating the external threaded rod, the internal threaded barrel is arranged on the walking bracket, and the external threaded rod is arranged on the limiting magnet; the external diameter of external screw thread pole equals the internal diameter of internal thread bucket, and the screw thread intermeshing of external screw thread pole and internal thread bucket rotates external screw thread pole, can make external screw thread pole stretch out in the internal thread bucket or contract in the internal thread bucket to adjust the distance between spacing magnet and the pressure vessel top cap.
The utility model discloses an in some embodiments, wash the subassembly including grinding and polishing subassembly and arc guide rail, grind the subassembly of polishing and install in the arc guide rail, grind the subassembly of polishing and can follow the arc guide rail and remove.
A polishing wheel for cleaning and polishing and the like can be arranged in the grinding and polishing component; the grinding and polishing assembly can also be provided with a moving gear used for moving along the arc-shaped guide rail, moving racks meshed with the moving gear are arranged in the length direction of the arc-shaped guide rail, and when the moving gear rotates, the grinding and polishing assembly can be driven to move along the arc-shaped guide rail, so that the cleaning range of the cleaning device is enlarged, the moving times of the cleaning device are reduced, and the cleaning efficiency of the cleaning device is improved.
In some embodiments of the present invention, the cleaning support further comprises a positioning assembly abutting against the top cover of the pressure vessel.
The locating component can be a locating wheel abutted against the inner side wall of the top cover of the pressure container, the locating component can enable the cleaning device to be close to the top cover of the pressure container all the time, the cleaning component is ensured to be abutted against the cleaning part all the time, and the cleaning efficiency is ensured.
The utility model discloses an in some embodiments, drive assembly includes driving motor and the drive wheel of being connected with the driving motor output, driving motor and walking support fixed connection, and the drive wheel rotates with walking support to be connected.
The drive wheel can be installed in walking support's upside, and driving motor drives the drive wheel rotatory, and then drives walking support and remove along pressure vessel top cap edge, need not artifical transport belt cleaning device, has promoted belt cleaning device's cleaning efficiency.
In some embodiments of the present invention, the driving assembly further comprises a plurality of driven wheels rotatably connected to the traveling support.
When the walking support moves along the edge of the pressure vessel top cover, the driven wheel moves along the pressure vessel top cover together, so that the distance between the pressure vessel top cover and the walking support is convenient to control, and the top cover of the pressure vessel and the walking support are prevented from being scratched and rubbed.
Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:
1. in this embodiment, the cleaning device can clean the pressure vessel top cover.
2. Can dismantle between walking support and the cleaning support and be connected, can realize walking support and cleaning support independent positioning, can install walking support and cleaning support in proper order when the installation, promote the installation effectiveness, also reduced when the installation with O type seal ring groove between collide with, guaranteed pressure vessel top cap's integrality and security.
Drawings
Fig. 1 is a schematic structural diagram of the whole cleaning device for the reactor pressure vessel top cover according to the present invention;
fig. 2 is a schematic structural view of the cooperation between the traveling support and the cleaning support of the cleaning device for the reactor pressure vessel top cover according to the present invention;
fig. 3 is a schematic structural view of a fixed pull rod and a limiting magnet of the cleaning device for the reactor pressure vessel top cover according to the present invention;
fig. 4 is a schematic structural diagram of the first boss and the second boss of the cleaning device for the reactor pressure vessel top cover according to the present invention;
fig. 5 is a structural schematic diagram of the polishing component and the arc-shaped guide rail of the cleaning device for the reactor pressure vessel top cover of the present invention.
An icon: 1-a walking bracket, 111-a first boss, 112-a second boss, 102-a fixed pull rod, 103-a limiting magnet, 104-a driving component, 105-a driven wheel, 2-a cleaning bracket, 201-a cleaning component, 2011-a grinding and polishing component, 2012-an arc guide rail.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-5, the present embodiment provides a cleaning apparatus for a reactor pressure vessel head.
In the embodiment, the cleaning device is composed of a walking bracket 1, a cleaning bracket 2, a driving assembly 104, a cleaning assembly 201, a limiting magnet 103 and a fixed pull rod 102.
In this embodiment, the traveling bracket 1 includes a bracket main body, the bracket main body is a vertical plate-shaped structure, and a boss close to the top cover of the pressure vessel is arranged at the upper end of the traveling bracket 1.
The driving assembly 104 is arranged on the walking bracket 1, and the driving assembly 104 has 2 driving wheels (driving wheels) and 4 driven wheels 105 in total. 2 driving wheels are arranged on a boss at the upper end of the walking bracket 1 and connected with the output end of the driving motor. The 4 driven wheels 105 are mounted on the side of the frame body adjacent the pressure vessel head.
The walking bracket 1 is also provided with a plurality of limiting magnets 103 to prevent the cleaning device from falling off from the top cover of the pressure vessel. A telescopic rod is arranged between the limiting magnet 103 and the walking support 1, one end of the telescopic rod is installed on the walking support 1, and the limiting magnet 103 is located at the other end of the telescopic rod.
The walking bracket 1 and the cleaning bracket 2 can be made of aluminum alloy, so that the stability of the whole structure in the operation process of the cleaning device is ensured; the walking bracket 1 and the cleaning bracket 2 adopt a modular design, so that subsequent maintenance and replacement are facilitated. The initial state of the walking bracket 1 and the cleaning bracket 2 is a separated state, and when the cleaning bracket is used, the first boss 111 and the second boss 112 can be matched with bolts for connecting and installing. During installation, a safety clamp can be used for connecting the walking bracket 1 and the cleaning bracket 2.
After the walking bracket 1 and the cleaning bracket 2 are installed, a fixed pull rod 102 is arranged between the walking bracket 1 and the cleaning bracket 2. One end of the fixed pull rod 102 is detachably connected with the walking bracket 1, and the other end of the fixed pull rod 102 is detachably connected with the cleaning bracket 2.
A lifting screw rod can be arranged between the grinding and polishing assembly 2011 and the arc-shaped guide rail 2012, and the relative height between the grinding and polishing assembly 2011 and the arc-shaped guide rail 2012 can be adjusted by rotating the lifting screw rod. In other embodiments, a height-adjusting bolt may be disposed between the polishing assembly 2011 and the arc-shaped guide rail 2012, the arc-shaped guide rail 2012 may have a plurality of bolt holes with different heights, and the height-adjusting bolt may pass through the polishing assembly 2011 and be inserted into the bolt holes with different heights, so as to adjust the height of the polishing assembly 2011.
The cleaning bracket 2 is also provided with a positioning component which is abutted against the top cover of the pressure vessel.
When the cleaning device is used, polishing wheels of different specifications and types can be replaced, and rough cleaning and fine cleaning of the O-shaped ring groove of the top cover are completed. Firstly, installing a wool wheel, and roughly washing the whole O-shaped ring groove for 1-2 times; then, the O-shaped ring groove of the top cover is finely washed for 1-2 times by observing the cleaning condition of the O-shaped ring groove and replacing a scouring pad wheel; and thirdly, the cleaning condition of the O-shaped ring groove is observed, and the wool wheel is installed for fine cleaning at the position with the defects of slight convex points, rust and the like through a manual cleaning device (such as a small cleaning polisher). If the defect can not be removed, repairing the defect by using 800-1000-mesh abrasive paper or abrasive paste in a manual cleaning mode, controlling the repairing strength, not damaging the sealing surface, and not installing abrasive paper for polishing by using a manual cleaning device. And after the O-shaped ring groove of the top cover is cleaned, installing a non-woven fabric cleaning wheel, and cleaning the O-shaped ring groove of the top cover for 1 time. After cleaning, the flange surfaces at the inner side and the outer side of the O-shaped ring groove of the top cover are finally wiped by using non-woven fabrics and alcohol.
Simultaneously, the embodiment also comprises the following installation and use modes:
1. before installation, 2 quick clamps are opened at the position of the tool storage box, and the locking bolt of the first boss 111 is unscrewed by using an inner hexagon;
2. 2 operating personnel on the spot lift walking support 1 to near the top cap, and 2 operating personnel are supplementary to hang it on the pressure vessel top cap in addition, during the installation, ensure 4 from the lateral wall laminating of driving wheel 105 and pressure vessel top cap of side, ensure that belt cleaning device radial position is suitable, ensure that belt cleaning device does not take place to collide with, ensure that the stereoplasm part of instrument does not contact with top cap O type seal ring groove or collide with. Meanwhile, the telescopic rod is adjusted, so that the limiting magnet 103 is close to the top cover of the pressure vessel;
3.1 operators push the cleaning support 2 towards the center of the top cover of the pressure vessel to ensure that the cleaning assembly 201 is always attached to the outer edge of the top cover, and the other 3 operators push the cleaning support 2 upwards to ensure that the cleaning support is attached to the walking support 1, so that the walking support 1 and the cleaning support 2 can be connected by using a safety clamp, and the first boss 111 and the second boss 112 can be locked by using (or simultaneously using) bolts;
4. adjusting the arc-shaped guide rail 2012 of the cleaning assembly 201 to ensure that the arc-shaped guide rail 2012 is horizontal;
5. the relative height of the grinding and polishing assembly 2011 and the arc-shaped guide rail 2012 can be adjusted through the height adjusting bolt;
6. the polishing and grinding assembly 2011 starts cleaning, the dust collector is started at the same time, and an operator constantly pays attention to the state of the cleaning machine and timely presses down the emergency stop if a problem occurs;
7. after the cleaning of the area is completed, the cleaning device is moved to the next area for cleaning;
8. the bolt hole position and stubborn impurities which are difficult to remove by a cleaning device are cleaned by using a manual cleaning tool.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A belt cleaning device for reactor pressure vessel top cap which characterized in that: the cleaning device comprises a walking support (1) and a cleaning support (2), wherein the walking support (1) is provided with a driving assembly (104) which crawls along a pressure container top cover, the cleaning support (2) is provided with a cleaning assembly (201) which is used for cleaning the pressure container top cover, and the walking support (1) and the cleaning support (2) are detachably connected.
2. The cleaning apparatus for a reactor pressure vessel head as defined in claim 1, wherein: the walking support (1) is provided with a first boss (111), the cleaning support (2) is provided with a second boss (112), and the first boss (111) is connected with the second boss (112) through a bolt.
3. The cleaning apparatus for a reactor pressure vessel head as defined in claim 1, wherein: a fixed pull rod (102) is arranged between the walking bracket (1) and the cleaning bracket (2).
4. A cleaning apparatus for a reactor pressure vessel head as defined in claim 3, wherein: one end of the fixed pull rod (102) is detachably connected with the walking bracket (1), and the other end of the fixed pull rod (102) is detachably connected with the cleaning bracket (2).
5. The cleaning apparatus for a reactor pressure vessel head as defined in claim 1, wherein: the walking bracket (1) is provided with a limiting magnet (103) for limiting.
6. The cleaning device for the reactor pressure vessel head as recited in claim 5, wherein: a telescopic rod is arranged between the limiting magnet (103) and the walking support (1), one end of the telescopic rod is installed on the walking support (1), and the limiting magnet (103) is located at the other end of the telescopic rod.
7. The cleaning apparatus for a reactor pressure vessel head as defined in claim 1, wherein: wash subassembly (201) and including grinding and polishing subassembly (2011) and arc guide rail (2012), grind and polish subassembly (2011) and install in arc guide rail (2012), grind and polish subassembly (2011) and can follow arc guide rail (2012) and remove.
8. The cleaning apparatus for a reactor pressure vessel head as defined in claim 1, wherein: the cleaning bracket (2) is also provided with a positioning component which is abutted against the top cover of the pressure vessel.
9. The cleaning apparatus for a reactor pressure vessel head as defined in claim 1, wherein: the driving assembly (104) comprises a driving motor and a driving wheel connected with the output end of the driving motor, the driving motor is fixedly connected with the walking support (1), and the driving wheel is rotatably connected with the walking support (1).
10. The cleaning apparatus for a reactor pressure vessel head as defined in claim 9, wherein: the driving assembly (104) also comprises a plurality of driven wheels (105) which are rotationally connected with the walking bracket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223235036.7U CN218801361U (en) | 2022-12-05 | 2022-12-05 | Cleaning device for top cover of reactor pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223235036.7U CN218801361U (en) | 2022-12-05 | 2022-12-05 | Cleaning device for top cover of reactor pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218801361U true CN218801361U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223235036.7U Active CN218801361U (en) | 2022-12-05 | 2022-12-05 | Cleaning device for top cover of reactor pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218801361U (en) |
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2022
- 2022-12-05 CN CN202223235036.7U patent/CN218801361U/en active Active
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