CN212287120U - Polishing detection device for sealing surface of pressure container - Google Patents
Polishing detection device for sealing surface of pressure container Download PDFInfo
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- CN212287120U CN212287120U CN201922428303.4U CN201922428303U CN212287120U CN 212287120 U CN212287120 U CN 212287120U CN 201922428303 U CN201922428303 U CN 201922428303U CN 212287120 U CN212287120 U CN 212287120U
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- pressure container
- polishing
- dust absorption
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Abstract
The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a polishing detection device for a sealing surface of a pressure container. The grinding detection device for the sealing surface of the pressure container, disclosed by the embodiment, can do circular motion along the sealing surface of the pressure container, so that the maintenance operations such as automatic grinding, polishing, defect detection and the like of the sealing surface of the pressure container are realized, the problems of inconsistent quality of manual grinding and polishing and large irradiation dose of personnel are solved, and the cleaning efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power maintenance, concretely relates to be used for sealed face of pressure vessel detection device that polishes.
Background
In general, a reactor pressure vessel is a non-replaceable class I device of a nuclear power plant, and in order to ensure that the device has a good enough sealing performance, the nuclear power plant must open the reactor pressure vessel for refueling after a nuclear fuel cycle is finished. Foreign matter (such as dust and rust), marks, scratches and the like usually remain on the sealing surface of the pressure vessel, and the foreign matter and the defects affect the sealing performance. Therefore, the sealing surface of the pressure vessel needs to be subjected to grinding and polishing treatment during each shutdown and refueling overhaul. Meanwhile, the reactor pressure vessel belongs to equipment with high sealing requirements, and defect detection is required after grinding and polishing so as to ensure that a sealing surface has good sealing performance.
In the related technology, most nuclear power plants adopt a manual polishing mode to clean the residual foreign matters or tiny defects on the surface of a sealing surface, and then a visual inspection method is used for detecting the polishing effect. The mode has low efficiency and higher labor intensity, and more importantly, the operation is carried out in a strong irradiation environment, the irradiation dose of personnel is large, and certain safety risk exists.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the related art, the grinding detection device for the sealing surface of the pressure container is provided.
According to an aspect of the embodiments of the present disclosure, there is provided a device for detecting grinding of a sealing surface of a pressure vessel, the device for detecting structural defects of the sealing surface of the pressure vessel including: the grinding device comprises a vehicle body, a first driving motor, a plurality of trundles, a grinding assembly, a plurality of first guide wheels and a plurality of second guide wheels;
the vehicle body comprises an installation plate, the driving motor and the plurality of trundles are connected to the lower surface of the installation plate, and the plurality of trundles rotate under the driving of the first driving motor so as to drive the grinding detection device for the sealing surface of the pressure container to move on the sealing surface of the pressure container;
the polishing assembly is connected to the lower surface of the mounting plate, is in contact with the sealing surface of the pressure container and is used for polishing the sealing surface of the pressure container;
the central shafts of the first guide wheels are connected to one side, facing the outer wall of the pressure container, of the vehicle body through connecting rods, and the outer ring of each first guide wheel is in contact with the outer wall of the pressure container; the central shafts of the second guide wheels are connected to one side, facing the inner wall of the pressure container, of the vehicle body through connecting rods, and the outer ring of each second guide wheel is in contact with the inner wall of the pressure container.
In a possible implementation manner, the device for detecting grinding of the sealing surface of the pressure vessel further includes: a dust collection filter assembly;
dust absorption filtering component connects the top of grinding component, dust absorption filtering component's dust absorption mouth is just right grinding component, dust absorption filtering component is used for adsorbing the dirt bits that grinding component ground the in-process and produced.
In one possible implementation, the sanding assembly further includes a sealed housing;
the sealing shell cover is buckled on the side edge and the upper part of a grinding wheel of the grinding assembly;
the top end of the sealing shell is provided with a dust absorption pipeline, and a dust absorption opening of the dust absorption filtering component is connected with the upper end of the dust absorption pipeline.
In one possible implementation, the grinding assembly further comprises a screw;
the upper surface of the sealing shell is provided with a threaded through hole along the axial direction, and the screw rod is in threaded connection with the threaded through hole;
the bottom end of the screw rod is connected with a polishing wheel of the polishing assembly, and the distance between the polishing wheel and the sealing surface of the pressure container can be adjusted by rotating the screw rod.
In a possible implementation manner, the device for detecting grinding of the sealing surface of the pressure vessel further includes: a camera device connected to the vehicle body.
In a possible implementation manner, the device for detecting grinding of the sealing surface of the pressure vessel further includes: a lighting device connected to the vehicle body.
In a possible implementation manner, the device for detecting grinding of the sealing surface of the pressure vessel further includes: a control device;
the control device is respectively connected with the first driving motor, the polishing assembly and the dust absorption filtering assembly, and is used for controlling the first driving motor, the polishing assembly and the dust absorption filtering assembly to start or pause work.
In a possible implementation manner, the device for detecting grinding of the sealing surface of the pressure vessel further includes: a battery;
the battery is used for supplying power to all components of the pressure container sealing surface polishing device.
The beneficial effects of the utility model reside in that: the grinding detection device for the sealing surface of the pressure container, disclosed by the embodiment, can do circular motion along the sealing surface of the pressure container, so that the maintenance operations such as automatic grinding, polishing, defect detection and the like of the sealing surface of the pressure container are realized, the problems of inconsistent quality of manual grinding and polishing and large irradiation dose of personnel are solved, and the cleaning efficiency is improved.
Drawings
FIG. 1 is a schematic diagram illustrating an operational state of a device for pressure vessel sealing surface grinding detection in accordance with an exemplary embodiment.
FIG. 2 is a perspective view of a grinding detection device for a sealing surface of a pressure vessel, according to an exemplary embodiment.
FIG. 3 is a perspective view of a grinding assembly for a pressure vessel sealing surface grinding detection apparatus, according to an exemplary embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram illustrating an operational state of a device for pressure vessel sealing surface grinding detection in accordance with an exemplary embodiment. FIG. 2 is a perspective view of a grinding detection device for a sealing surface of a pressure vessel, according to an exemplary embodiment. As shown in fig. 1 and 2, the apparatus for detecting structural defects of a sealing surface of a pressure vessel may include: the grinding machine comprises a vehicle body 1, a first driving motor 22, a plurality of trundles 21, a grinding assembly 3, a plurality of first guide wheels 13 and a plurality of second guide wheels 14;
the automobile body 1 includes mounting panel 11, and driving motor and a plurality of truckle 21 are connected at the lower surface of mounting panel 11, and a plurality of truckles 21 rotate under the drive of first driving motor 22 to drive automobile body 1 and remove on the sealed face of pressure vessel. For example, as shown in fig. 3, the grinding detection device for the sealing surface of the pressure vessel according to the embodiment of the present disclosure may include two pairs of casters 21 connected by a bearing, and an output shaft of the first driving motor 22 may transmit torque to one of the pair of casters 21 through the first transmission belt 24 to drive the one of the pair of casters 21 to rotate, and the other of the pair of casters 21 is driven to rotate by the one of the pair of casters 21 through the bearing. In a possible implementation mode, the caster 21 can be limited to roll on the bolt hole surface of the sealing surface of the pressure container, and the condition that the caster contacts the sealing surface 9 of the pressure container in the hoisting and working processes to cause unnecessary damage to the sealing surface of the pressure container is avoided.
The lower surface of the mounting plate 11 may also have a baffle 12 attached to the edge of the mounting plate 11.
The grinding assembly 3 can be connected to the lower surface of the mounting plate 11, the grinding assembly 3 can be in contact with the sealing surface 9 of the pressure vessel for grinding the sealing surface 9 of the pressure vessel, and fig. 3 is a perspective view of the grinding assembly 3 for the pressure vessel sealing surface grinding detection device according to an exemplary embodiment. As shown in fig. 3, in a possible implementation manner, the grinding assembly may include a grinding wheel 35 and a polishing wheel 36, the grinding assembly may include a mounting plate 31, the mounting plate 31 may be mounted with two second driving motors 32, the grinding wheel 35 and the polishing wheel 36 may be respectively connected with one second driving motor 32 through one second conveyor belt 37, the grinding wheel 35 may be used for grinding the foreign matter and grinding marks on the pressure vessel sealing surface 9, and the grinding wheel 35 may be located before the polishing wheel 36 during the advance of the vehicle body 1. The polishing wheel 36 can polish the polished sealing surface 9 of the pressure container, so that the sealing surface 9 of the pressure container is smoother and smoother.
The central shafts of the first guide wheels 13 are connected to one side of the vehicle body 1, which faces the outer wall of the pressure container, through connecting rods, and the outer ring of each first guide wheel 13 is in contact with the outer wall of the pressure container; the center shafts of the plurality of second guide wheels 14 are connected to the vehicle body 1 through connecting rods on the side facing the inner wall of the pressure vessel, and the outer ring of each second guide wheel 14 is in contact with the inner wall of the pressure vessel. Thus, the moving path of the vehicle body 1 can be restricted to the pressure vessel sealing surface 9, and the vehicle body 1 can be effectively prevented from overturning.
The grinding detection device for the sealing surface of the pressure container, disclosed by the embodiment, can do circular motion along the sealing surface of the pressure container, so that the maintenance operations such as automatic grinding, polishing, defect detection and the like of the sealing surface of the pressure container are realized, the problems of inconsistent quality of manual grinding and polishing and large irradiation dose of personnel are solved, and the cleaning efficiency is improved.
In one possible implementation, the device for detecting grinding of the sealing surface of the pressure vessel may further include: a dust-absorbing filter assembly 5; dust absorption filtering component 5 can connect in the top of grinding component 3, and dust absorption filter component 5's dust absorption mouth can just be to grinding component 3, and dust absorption filtering component 5 is used for adsorbing the dirt bits that grinding component 3 polished the in-process and produced. In this way, dust generated by the sanding component 3 is effectively prevented from scattering into the pressure container and affecting the normal operation of the pressure container.
Fig. 3 is a perspective view illustrating a grinding assembly for a pressure vessel sealing surface grinding detection device according to an exemplary embodiment, and as shown in fig. 3, in a possible implementation manner, the grinding assembly 3 may further include a sealing shell 34 (where the sealing shell may be, for example, a semi-circular body, a rectangular body, etc., and the shape of the sealing object is not limited by the embodiments of the present disclosure); the sealing shroud 34 may be clipped over and to the side of the sanding wheel 35 and the polishing wheel 36 of the sanding assembly 3 to trap dust generated by the sanding assembly 3 to further prevent the escape of dust.
The top end of the sealed shell is provided with a dust absorption pipeline 38, and a dust absorption port (not shown) of the dust absorption filter assembly 5 can be connected with the upper end of the dust absorption pipeline. Thus, the dust collecting filter assembly 5 can directly adsorb the gathered dust, thereby further preventing the dust from escaping.
In one possible implementation, the grinding assembly may further include a lead screw; the upper surface of the sealing shell can be provided with a threaded through hole along the axial direction, and the screw rod can be connected in the threaded through hole in a threaded manner; the bottom of lead screw can be connected with the wheel of polishing and the throwing aureola of the subassembly of polishing, through rotatory lead screw, can adjust the distance between the sealed face of wheel of polishing and throwing aureola and pressure vessel. Thereby adjusting the grinding and polishing force of the grinding wheel and the polishing wheel to the pressure container.
In a possible implementation manner, as shown in fig. 3, a limiting rod 39 may be further connected to the inner wall of the sealing housing, and the limiting rod 39 may be clamped at the lower ends of the grinding wheel 35 and the polishing wheel 36 to prevent the grinding wheel 35 and the polishing wheel 36 from excessively moving downwards.
In one possible implementation, the device for detecting grinding of the sealing surface of the pressure vessel may further include: and the camera shooting equipment is connected to the vehicle body. The image pickup apparatus can pick up an image of the surroundings of the vehicle body.
In one possible implementation, the device for detecting grinding of the sealing surface of the pressure vessel may further include: and the lighting device can be connected to the vehicle body and used for providing a light source for the camera shooting device.
In one possible implementation, the device for detecting grinding of the sealing surface of the pressure vessel may further include: a control device;
the control device 7 can be respectively connected with the first driving motor 22, the grinding component 3 and the dust absorption and filtration component 5, and the control device 7 is used for controlling the first driving motor 22, the grinding component 3 and the dust absorption and filtration component to start or pause work.
Further, the control device 7 may also control the image pickup apparatus and the illumination apparatus to start or pause the operation. The control device may be, for example, a single chip microcomputer, and the type of the control device is not limited in the embodiment of the present disclosure.
For example, the control device 7 may establish a communication connection (e.g., a terminal server, a desktop computer, a notebook computer, or the like) with a remote terminal device (e.g., a distance of 20 meters or more) through wired or wireless communication, and the service person may send a control instruction to the control device 7 through the terminal device, so that the control device controls the first driving motor 22, the polishing assembly 3, and the dust filter assembly 5 to start or stop working.
In one possible implementation, the device for detecting grinding of the sealing surface of the pressure vessel may further include: a battery 8; the battery 8 can be used for supplying power to various components of the pressure vessel sealing surface grinding device.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (8)
1. A grinding detection device for a sealing surface of a pressure vessel is characterized in that the device for detecting the structural defects of the sealing surface of the pressure vessel comprises: the grinding device comprises a vehicle body, a first driving motor, a plurality of trundles, a grinding assembly, a plurality of first guide wheels and a plurality of second guide wheels;
the vehicle body comprises an installation plate, the driving motor and the plurality of trundles are connected to the lower surface of the installation plate, and the plurality of trundles rotate under the driving of the first driving motor so as to drive the grinding detection device for the sealing surface of the pressure container to move on the sealing surface of the pressure container;
the polishing assembly is connected to the lower surface of the mounting plate, is in contact with the sealing surface of the pressure container and is used for polishing the sealing surface of the pressure container;
the central shafts of the first guide wheels are connected to one side, facing the outer wall of the pressure container, of the vehicle body through connecting rods, and the outer ring of each first guide wheel is in contact with the outer wall of the pressure container; the central shafts of the second guide wheels are connected to one side, facing the inner wall of the pressure container, of the vehicle body through connecting rods, and the outer ring of each second guide wheel is in contact with the inner wall of the pressure container.
2. The apparatus of claim 1, further comprising: a dust collection filter assembly;
dust absorption filtering component connects the top of grinding component, dust absorption filtering component's dust absorption mouth is just right grinding component, dust absorption filtering component is used for adsorbing the dirt bits that grinding component ground the in-process and produced.
3. The apparatus of claim 2, wherein the grinding assembly further comprises a seal housing;
the sealing shell cover is buckled on the side edge and the upper part of a grinding wheel of the grinding assembly;
the top end of the sealing shell is provided with a dust absorption pipeline, and a dust absorption opening of the dust absorption filtering component is connected with the upper end of the dust absorption pipeline.
4. The apparatus of claim 3, wherein the grinding assembly further comprises a lead screw;
the upper surface of the sealing shell is provided with a threaded through hole along the axial direction, and the screw rod is in threaded connection with the threaded through hole;
the bottom end of the screw rod is connected with a polishing wheel of the polishing assembly, and the distance between the polishing wheel and the sealing surface of the pressure container can be adjusted by rotating the screw rod.
5. The apparatus of claim 1, further comprising: a camera device connected to the vehicle body.
6. The apparatus of claim 1, further comprising: a lighting device connected to the vehicle body.
7. The apparatus of claim 2, further comprising: a control device;
the control device is respectively connected with the first driving motor, the polishing assembly and the dust absorption filtering assembly, and is used for controlling the first driving motor, the polishing assembly and the dust absorption filtering assembly to start or pause work.
8. The apparatus of claim 1, further comprising: a battery;
the battery is used for supplying power to all components of the pressure container sealing surface polishing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922428303.4U CN212287120U (en) | 2019-12-30 | 2019-12-30 | Polishing detection device for sealing surface of pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922428303.4U CN212287120U (en) | 2019-12-30 | 2019-12-30 | Polishing detection device for sealing surface of pressure container |
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| Publication Number | Publication Date |
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| CN212287120U true CN212287120U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922428303.4U Active CN212287120U (en) | 2019-12-30 | 2019-12-30 | Polishing detection device for sealing surface of pressure container |
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| CN (1) | CN212287120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948355A (en) * | 2019-12-30 | 2020-04-03 | 中核武汉核电运行技术股份有限公司 | Polishing detection device for sealing surface of pressure container |
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2019
- 2019-12-30 CN CN201922428303.4U patent/CN212287120U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948355A (en) * | 2019-12-30 | 2020-04-03 | 中核武汉核电运行技术股份有限公司 | Polishing detection device for sealing surface of pressure container |
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