CN218384516U - Drawing and pushing back device and drawing and pushing back system - Google Patents
Drawing and pushing back device and drawing and pushing back system Download PDFInfo
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- CN218384516U CN218384516U CN202221409808.1U CN202221409808U CN218384516U CN 218384516 U CN218384516 U CN 218384516U CN 202221409808 U CN202221409808 U CN 202221409808U CN 218384516 U CN218384516 U CN 218384516U
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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 drawing and pushing-back device is used for drawing a neutron flux tube of a nuclear power station reactor, and comprises a supporting frame body and a drawing assembly, wherein the drawing assembly comprises a fitting piece and a force application piece, the fitting piece is movably arranged on the supporting frame body, and the fitting piece is used for fixing the neutron flux tube; the force application part is connected with the fitting part on one side, and applies force towards the fitting part to enable the fitting part to approach or be far away from the neutron flux tube. The utility model provides a pull out and push back device is through setting up the pulling out subassembly, be connected the cooperation through fitting piece and neutron flux tube in the pulling out subassembly, the fitting piece is connected with the portable cooperation of support body, apply force piece and exert force towards the fitting piece, make the fitting piece be close or keep away from neutron flux tube, also exert a pulling out force to neutron flux tube at the in-process that the fitting piece removed, the atress when can guaranteeing to pull out at every turn is even, the pollution risk has also been avoided in pulling out through mechanical means simultaneously.
Description
Technical Field
The application belongs to the technical field of neutron flux tube extraction, and more particularly relates to an extraction pushing-back device and an extraction pushing-back system.
Background
The neutron flux tubes of the reactor of the pressurized water reactor nuclear power plant, commonly called as casing tubes, are one of key devices of the pressurized water reactor nuclear power plant, the number of the neutron flux tubes is different when the reactor is different in size, and the number of the neutron flux tubes of a conventional reactor type single unit is 20-50. As a measuring channel of neutron flux of the reactor core nuclear measuring system, neutron flux tubes are uniformly distributed in a reactor core fuel assembly channel, penetrate through fuel assemblies and are exposed in a reactor core. Neutron flux tubes are a primary circuit pressure boundary because mechanical wear caused by radiation embrittlement and flow-induced vibration can cause the tube walls to be thinned and even damaged, thereby causing leakage and contamination of the primary circuit coolant.
In the maintenance processes of displacement, pipe blockage, replacement and the like of the neutron flux pipe, the flux pipe needs to be drawn out of the sleeve assembly. The drawing process is mainly realized by manual drawing of maintainers.
However, when the neutron flux tube is drawn manually, the drawing length is easily not accurately controlled due to uneven stress, and the risk of contamination may be increased.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a pull-out push-back device and a pull-out push-back system, so that the problems that when a neutron flux tube is pulled out manually in the prior art, the pull-out length cannot be controlled accurately due to uneven stress and the pollution risk is increased are solved.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides a pull out and push back device for draw out the neutron flux pipe of nuclear power station reactor, include:
a support frame body;
the drawing assembly comprises a fitting piece and a force application piece, the fitting piece is movably arranged on the support frame body, and the fitting piece is used for fixing the neutron flux tube;
one side of the force application part is connected with the fitting part, and the force application part applies force to the fitting part so that the fitting part is close to or far away from the neutron flux tube.
Optionally, the fitting piece include with the link that the support body is connected and with the cooperation end that neutron flux pipe is connected, the setting can be dismantled to the cooperation end, the cooperation end be used for with neutron flux pipe friction fit is connected.
Optionally, the matching end comprises a split type taper friction pair and a split type inner taper sleeve, the split type taper friction pair is respectively arranged on the inner side of the split type inner taper sleeve, and the split type inner taper sleeve is detachably arranged;
the split type taper friction pair is used for being in friction fit with the outer wall of the neutron flux tube, and when the split type inner cone sleeve is closed, the split type taper friction pair is respectively attached to the outer wall of the neutron flux tube.
Optionally, the split taper friction pair is movably arranged in the split inner taper sleeve, the diameter of one side of the split taper friction pair is larger than that of the other side, and the end with the smaller diameter of the split taper friction pair deviates from the neutron flux tube.
Optionally, the mating end further comprises a clamping bolt, and the clamping bolt fixes the split inner taper sleeve.
Optionally, a lining rubber is arranged on the inner side of the split taper friction pair and used for being attached to the neutron flux tube.
Optionally, the support frame body includes the mount and with the mounting that the fitting piece is connected, the mobilizable setting of mounting is in one side of mount, the mounting with the fitting piece is connected in order to drive the fitting piece removes.
Optionally, the support frame body further includes a sliding portion, the sliding portion is a sliding block and/or a sliding rail arranged on the fixed frame, the fixing member is correspondingly arranged as a sliding rail and/or a sliding block matched with the sliding portion, and the fixing member is arranged on the sliding portion in a sliding manner.
Optionally, the force application member comprises a swing rod and a fixed rotating shaft, one end of the swing rod is connected with the fixed member, and the other end of the swing rod extends towards the outer side of the support frame body;
the middle part of pendulum rod passes through fixed rotating shaft installation is fixed the opposite side of support body, the pendulum rod can wind fixed rotating shaft rotates, when the pendulum rod other end exerts force, the pendulum rod wind fixed rotating shaft rotates, pendulum rod one end promotes the fitting piece removes.
A drawing and pushing back system comprises a neutron flux tube and the drawing and pushing back device.
The application provides a pull out and push back device's beneficial effect lies in: compared with the prior art, the extraction pushing-back device of this application is through setting up the extraction subassembly, be connected the cooperation with neutron flux tube through the fitting piece in the extraction subassembly, the fitting piece is connected with the portable cooperation of support body, rethread application of force spare is exerted towards the fitting piece, make the fitting piece be close to or keep away from neutron flux tube, also exert an extraction power to neutron flux tube at the in-process that the fitting piece removed, atress when can guaranteeing to extract at every turn is even, the pollution risk has also been avoided in extracting through mechanical means simultaneously.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a drawing and pushing device according to an embodiment of the present disclosure;
FIG. 2 is a first schematic structural view of a mating member of a drawing and pushing device according to an embodiment of the present disclosure;
fig. 3 is a second schematic structural view of a mating member in the withdrawing and pushing device according to the embodiment of the present application.
Wherein, in the figures, the various reference numbers:
1-pulling and pulling back the pushing device;
10-a support frame body;
11-a fixed mount;
12-a fixing member;
13-a sliding part;
20-pulling the assembly;
21-a counterpart;
22-a force applying member;
221-swing rod;
222-fixed rotating shaft;
23-a connection end;
24-a mating end;
241-split taper friction pair;
242-split inner taper sleeve;
25-clamping bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through an intermediary, a connection between two elements, or an interactive relationship between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The terms "first," "second," and "third" (if any) in the description and claims of this application and the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or described herein.
In the maintenance processes of displacement, pipe blockage, replacement and the like of the neutron flux pipe, the flux pipe needs to be drawn out of the sleeve assembly. The drawing process is mainly realized by manual drawing of maintainers. However, when the neutron flux tube is manually drawn out, because the neutron flux tube is a pressure boundary of a loop, the direct contact with the neutron flux tube may increase the risk of contamination on the body surface of a maintenance worker, and the drawing length cannot be accurately controlled due to uneven stress during manual drawing. The neutron flux tube is possibly stressed to bend in the manual drawing and pushing process, the pushing resistance is increased, sealing components in the sealing section are damaged, and the leakage risk of a loop radioactive substance in the working process of the unit is increased. In order to reduce the contamination risk in the drawing process, ensure that the drawing length is accurate and controllable and avoid the damage of a sealing element in the back-pushing process, the on-line drawing and back-pushing device for the neutron flux tube in the nuclear power station reactor is designed and manufactured, is used for reducing the occupational risk of maintainers and has positive significance for improving the maintenance quality.
Referring to fig. 1-3, a drawing and pushing device provided by an embodiment of the present application will now be described. The embodiment of the application provides a pull-out push-back device, includes: support body 10 and extraction subassembly 20, wherein support body 10 includes holistic support body, and extraction subassembly 20 sets up promptly at the support body inboard. The rack body is also provided with a C-shaped fine adjustment fixing clamp matched with the neutron flux tube. The drawing assembly 20 comprises a fitting piece 21 and a force application piece 22, the fitting piece 21 is movably arranged on the support frame body, and the fitting piece 21 is used for fixing the neutron flux tube; the force application member 22 is connected to the fitting member 21 on one side, and the force application member 22 applies a force to the fitting member 21 to move the fitting member 21 toward or away from the neutron flux tube.
Specifically, the engaging member 21 is movably mounted on the frame body, that is, the engaging member 21 is movably disposed relative to the frame body 11. Correspondingly, the force application part 22 is connected with the fitting part 21, the force application part 22 is used for applying a push-pull force to the fitting part 21, when the force application part 22 applies a force to the fitting part 21, the neutron flux tube connected with the fitting part 21 is correspondingly applied by the force application part 22 so as to be driven by the fitting part 21 to move, and in the process that the fitting part 21 approaches or leaves the neutron flux tube, the neutron flux tube body is also driven by the fitting part 21 to move, so that the neutron flux tube is drawn.
It should be noted that the force application member 22, as a driving member having a driving force, may be configured as a movable member connected through various driving modules, such as a belt, a gear, or a direct drive, and connected with a driving motor, etc., so as to implement the force application; in addition, in order to achieve the pushing back and pulling out effect on the neutron flux tube, the force application member 22 may also be configured to move back and forth, which may also be implemented by a corresponding back and forth swinging module, which is not limited in this embodiment.
In addition, the engaging member 21 is movably mounted on the frame body, and it can be understood that a sliding component such as a sliding block or a sliding rail corresponding to the engaging member 21 is disposed on the frame body 10, so as to control the moving direction of the engaging member 21, ensure that the forces applied to the neutron flux tube are all on the same axis, and ensure the stability of the neutron flux tube during drawing, which is not limited in this embodiment.
In the above embodiment, optionally, the fitting member 21 includes a connecting end 23 connected to the support frame 10 and a fitting end 24 connected to the neutron flux tube, the fitting end 23 is detachably disposed, and the fitting end 24 is used for friction fit connection with the neutron flux tube. Wherein, the connecting end of the fitting 21 is movably connected with the support frame body 10, and the connecting end 24 can be set to be a slider or a slide rail, etc., and is connected and matched with the fitting part on the support frame body 10, so as to achieve the effect of reciprocating movement. In addition, the matching end 24 is arranged in a detachable manner, and the matching end 24 is used for being connected with the neutron flux tube, in order to ensure the connection effect between the matching end 24 and the neutron flux tube, it is usually required to keep a stable connection between the matching end 24 and the neutron flux tube. Therefore, the matching end 24 is arranged in a detachable mode, when the matching end 24 and the neutron flux tube need to be connected, the matching end 24 is detached and then connected with the neutron flux tube, and the matching end 24 is installed in the original position after the connection is completed, so that the connection effect between the matching end 24 and the neutron flux tube is guaranteed.
Correspondingly, in order to achieve the connection effect between the mating end 24 and the neutron flux tube, optionally, the mating end 24 includes a split type taper friction pair 241 and a split type inner taper sleeve 242, the split type taper friction pair 241 is respectively arranged at the inner side of the split type inner taper sleeve 242, and the split type inner taper sleeve 242 is detachably arranged; the split taper friction pair 241 is used for being in friction fit with the outer wall of the neutron flux tube, and when the split inner taper sleeve 242 is closed, the split taper friction pair 241 is attached to the outer wall of the neutron flux tube respectively.
The split taper friction pair 241 is arranged in the split inner taper sleeve 242 and can be regarded as the inner wall of the split inner taper sleeve 242, and the split taper friction pair 241 is in friction fit with the outer wall of the neutron flux tube. The split taper friction pair 241 is divided into two halves and arranged on the inner sides of the two inner taper sleeves respectively. During the opening and closing of the split inner taper sleeve 242, the corresponding two split taper friction pairs 241 approach or move away, thereby achieving the clamping and releasing fixing effect. In addition, it should be noted that the split inner taper sleeves 242 are generally arranged in a hinged manner so that the split inner taper sleeves 242 can be always closed and returned to their original positions when being separated and closed, thereby achieving the fixing effect.
In addition, in order to achieve the drawing and pushing effect on the neutron flux tube, optionally, the split type taper friction pair 241 is movably arranged in the split type inner taper sleeve 242, the diameter of one side of the split type taper friction pair 241 is larger than that of the other side of the split type taper friction pair 241, and the end, with the smaller diameter, of the split type taper friction pair 241 deviates from the neutron flux tube. Specifically, after the neutron flux tube is connected with the split taper friction pair 241, the split taper friction pair 241 can axially move in the split inner taper sleeve 242, when the neutron flux tube is drawn, two conical surfaces (namely, the end with the smaller diameter of the split taper friction pair 241) of the split taper friction pair 241 are mutually close under the drawing action until the split taper friction pair is contacted with the outer side wall of the neutron flux tube, the split taper friction pair 241 generates axial displacement and the two conical surfaces are contacted and tightly attached through the drawing force generated by drawing, the internal friction force of the split taper friction pair is increased, and after the drawing force is applied, the drawing force can be applied to the neutron flux tube, so that the neutron flux tube is displaced for a certain distance. When the matching end 24 moves towards the neutron flux tube, the two conical surfaces of the split taper friction pair 241 are separated, the friction force of the holding neutron flux tube is released, the relative position between the matching end 24 and the neutron flux tube can be adjusted on the premise that the neutron flux tube is not moved, so that the matching end 24 returns to the initial drawing position, the drawing force is applied again, the neutron flux tube can be drawn for the second time, the small displacement distance of the matching end 24 in the support frame body 10 is ensured, and the drawing force is applied to the neutron flux tube conveniently.
Further, in order to achieve the connection effect between the neutron flux tube and the mating end 24, optionally, the neutron flux tube further comprises a clamping bolt 25, the clamping bolt 25 is used for fixing the split type inner taper sleeve 242, namely, the clamping bolt 25 is arranged between the opening and closing ends of the two inner taper sleeves, when the clamping bolt 25 is loosened, the split type inner taper sleeve 242 is in an open state, when the split type inner taper sleeve 242 needs to be fixed, the clamping bolt 25 is fixed after the two inner taper sleeves are closed, and therefore the two inner taper sleeves 242 can be in a stable closed state all the time.
In addition, in order to further increase the friction effect of the split taper friction pair 241 and avoid damaging the outer wall of the neutron flux tube during drawing, optionally, a lining rubber is arranged on the inner side of the split taper friction pair 241 and used for being attached to the neutron flux tube, so that the friction force is increased, and a certain protection effect can be provided for the tube wall of the neutron flux tube.
In order to achieve the moving effect of the mating end 21, optionally, the support frame 10 includes a fixed frame 11 and a fixed element 12 connected to the mating member 21, the fixed element 12 is movably disposed at one side of the fixed frame 11, and the fixed element 12 is connected to the mating member 21 to move the mating member 21. The fixing member 12 and the fixing frame 11 are movably disposed, that is, optionally, the support frame 10 further includes a sliding portion 13, the sliding portion 13 is a sliding block and/or a sliding rail disposed on the fixing frame 11, the fixing member 12 is correspondingly disposed as a sliding rail and/or a sliding block matched with the sliding portion 13, and the fixing member 12 is slidably disposed on the sliding portion 13. It can be understood that, one of the sliding portion 13 and the fixing portion 12 is configured as a sliding rail, and the other is configured as a sliding block, so that the fixing portion 12 can slide in the sliding portion 13, which is not limited in this embodiment.
In addition, in order to achieve the effect of applying force to the mating member 21 by the force applying member 22 and to achieve the reciprocating pushing-back effect, optionally, the force applying member 22 includes a swing link 221 and a fixed rotating shaft 222, one end of the swing link 221 is connected with the fixing member 12, and the other end of the swing link 221 extends toward the outside of the support frame 10; the middle part of the swing link 221 is fixed on the other side of the support frame 10 through the fixed rotating shaft 222, the swing link 221 can rotate around the fixed rotating shaft 222, when a force is applied to the other end of the swing link 221, the swing link 221 rotates around the fixed rotating shaft 222, and one end of the swing link 221 pushes the mating member 21 to move.
When the device is used, the sliding part 13 of the neutron flux tube drawing device is firstly installed on a positioning bolt hole of the operation table frame 10, the installation position is determined by the position of the neutron flux tube to be drawn, and the connecting bolt of the sliding part 13 is screwed to complete the determination of the position. Then, the mating member 21 is connected to the fixing member 12 in the sliding portion 13, and the pulling direction needs to be taken into consideration during installation, so as to avoid the function error caused by the reverse direction. After the installation is completed, the connection with the neutron flux tube can be started. At this time, the height of the fitting piece 12 is consistent with the height of the center of the neutron flux tube, and then the neutron flux tube is connected with the fitting piece 12. At this time, the split type inner taper sleeves 242 are opened, the end portions of the neutron flux tubes are placed between the split type inner taper sleeves 242, the split type inner taper sleeves 242 are closed, the neutron flux tubes are fixed through the clamping bolts 25, and then the neutron flux tubes and the fitting pieces 12 can be connected in a matched mode.
At this time, the force application member 22 is installed, the fixed rotating shaft 222 is fixed on the support frame 10, and then the fixed rotating shaft 222 is connected with the swing rod 221, and one end of the swing rod 221 is connected with the fixing member 12. At this time, the lever swing of the swing rod 221 around the fixed rotating shaft 222 can be completed by applying a force to the other end of the swing rod 221, the neutron flux tube is clamped by the split taper friction pair 241 due to a friction force in the drawing sliding process, and when the split taper friction pair 241 is driven to move synchronously by the split inner taper sleeve 242, the friction force for clamping the neutron flux tube is increased after the two matched conical surfaces are contacted, so that the drawing friction resistance of the neutron flux tube is overcome, the neutron flux tube is driven to move synchronously, and the drawing operation is realized. In the process of retreating and sliding the swing rod 221, the conical contact surfaces of the split type taper friction pairs 241 in the two matched split type inner taper sleeves 242 are separated, so that the friction force for clamping the neutron flux tube is reduced, the drawing device and the neutron flux tube generate relative displacement, the matching piece 21 returns to the circulating drawing position again, and the reciprocating drawing circulating operation can be completed by applying force to the swing rod 221 again.
On the basis of the embodiment, the embodiment of the utility model provides a still provide a pull out and push back system, including neutron flux pipe and foretell pull out and push back device.
It should be noted that the structure of the withdrawing and pushing device in this embodiment is the same as that of the withdrawing and pushing device in the above embodiment, and the technical effects are also the same, which are not described herein again.
The present application is intended to cover various modifications, equivalent arrangements, and adaptations of the present application without departing from the spirit and scope of the present application.
Claims (10)
1. A withdrawal pushback device for withdrawing a neutron flux tube of a nuclear power plant reactor, comprising:
a support frame body;
the drawing assembly comprises a fitting piece and a force application piece, the fitting piece is movably arranged on the support frame body, and the fitting piece is used for fixing the neutron flux tube;
one side of the force application part is connected with the fitting part, and the force application part applies force to the fitting part so that the fitting part is close to or far away from the neutron flux tube.
2. The withdrawal and push device of claim 1, wherein: the fitting piece include with support the link that the support body is connected and with the cooperation end that neutron flux pipe is connected, the setting can be dismantled to the cooperation end, the cooperation end be used for with neutron flux pipe friction fit is connected.
3. The withdrawal and push device of claim 2, wherein: the matching end comprises a split type taper friction pair and a split type inner taper sleeve, the split type taper friction pair is respectively arranged on the inner side of the split type inner taper sleeve, and the split type inner taper sleeve is detachably arranged;
the split type taper friction pair is used for being in friction fit with the outer wall of the neutron flux tube, and when the split type inner cone sleeve is closed, the split type taper friction pair is respectively attached to the outer wall of the neutron flux tube.
4. The withdrawal and push-back device as set forth in claim 3, wherein: the split type taper friction pair is movably arranged in the split type inner taper sleeve, the diameter of one side of the split type taper friction pair is larger than that of the other side of the split type taper friction pair, and the end, with the smaller diameter, of the split type taper friction pair deviates from the neutron flux tube.
5. The withdrawal and push-back device as set forth in claim 4, wherein: the matching end further comprises a clamping bolt, and the clamping bolt fixes the split type inner taper sleeve.
6. The withdrawal and push-back device according to claim 4, wherein: and a lining rubber is arranged on the inner side of the split taper friction pair and is used for being attached to the neutron flux tube.
7. The withdrawal and push-back device according to any one of claims 1 to 6, wherein: the support frame body comprises a fixing frame and a fixing piece connected with the matching piece, the fixing piece is movably arranged on one side of the fixing frame, and the fixing piece is connected with the matching piece to drive the matching piece to move.
8. The withdrawal and push device of claim 7, wherein: the support body still includes the sliding part, the sliding part is for setting up slider and/or slide rail on the mount, the mounting corresponding set up to with sliding part complex slide rail and/or slider, the mounting is in sliding setting is gone up to the sliding part.
9. The withdrawal and push device of claim 8, wherein: the force application part comprises a swing rod and a fixed rotating shaft, one end of the swing rod is connected with the fixed part, and the other end of the swing rod extends towards the outer side of the support frame body;
the middle part of pendulum rod passes through fixed rotating shaft installation is fixed the opposite side of support body, the pendulum rod can wind fixed rotating shaft rotates, when the pendulum rod other end exerts force, the pendulum rod wind fixed rotating shaft rotates, pendulum rod one end promotes the fitting piece removes.
10. A withdrawal and push-back system, comprising: comprising a neutron flux tube and the withdrawal and push-back device of any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221409808.1U CN218384516U (en) | 2022-05-30 | 2022-05-30 | Drawing and pushing back device and drawing and pushing back system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221409808.1U CN218384516U (en) | 2022-05-30 | 2022-05-30 | Drawing and pushing back device and drawing and pushing back system |
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| CN218384516U true CN218384516U (en) | 2023-01-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116206790B (en) * | 2023-02-17 | 2024-02-06 | 中核检修有限公司 | Neutron flux tube processing apparatus and method |
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2022
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116206790B (en) * | 2023-02-17 | 2024-02-06 | 中核检修有限公司 | Neutron flux tube processing apparatus and method |
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