CN214326885U - Lifting and transporting device for nuclear power station explosion valve - Google Patents
Lifting and transporting device for nuclear power station explosion valve Download PDFInfo
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- CN214326885U CN214326885U CN202120305413.6U CN202120305413U CN214326885U CN 214326885 U CN214326885 U CN 214326885U CN 202120305413 U CN202120305413 U CN 202120305413U CN 214326885 U CN214326885 U CN 214326885U
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Abstract
The utility model relates to a lift by crane conveyer for nuclear power station blast valve belongs to the technical field of nuclear power station maintenance instrument. The device comprises a frame, a hoisting mechanism arranged on the frame and an operation space arranged in the frame; the turnover mechanism is arranged on the frame and applies upward acting force to the blasting valve; the turnover mechanism and the hoisting mechanism respectively act on the front end and the rear end of the blast valve; the frame is arranged at the bottom end of the frame, and the frame moves relative to the ground through the moving mechanism. The utility model improves the working efficiency and realizes the lifting, turning and transferring operations in a narrow working space; in addition, the horizontal transfer is more stable and efficient than the vertical transfer; after the blasting valve is lifted for a certain height, the blasting valve is turned over, the lifting difficulty is reduced, and meanwhile the lifting space is saved.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power station maintenance instrument, concretely relates to a lift by crane conveyer for nuclear power station blast valve.
Background
The explosion valve in the nuclear power station has the characteristics of low pressure drop, zero leakage and high reliability. During the normal operation of the nuclear power station, the explosion valve has no leakage; when an accident occurs, the explosion valve is opened, and the functional requirements of the systems of the nuclear power station such as automatic pressure relief, low-pressure safety injection, containment recycling and the like are met.
According to the requirements of supervision tests and in-service tests, one blasting valve of different types needs to be respectively extracted for disassembly check in each refueling period, and whether the function of the blasting valves on the pipelines of each system is normal is verified. However, the positions of the blast valves in the nuclear power plants in the factory buildings are often compact in layout, narrow in-situ overhaul space, multiple in-situ interference items, incapable of completing the routine inspection of in-situ disintegration of the blast valves, incapable of completing the supervision test in time, and the problems of risk of test requirements on the blast valves in the in-service test, over-limit of the integral collective dosage rate of a working group and the like. In general, a special hoisting tool and a special transferring tool are needed to be used respectively to transfer the checked blast valve to a repair shop for disassembly check, so that the efficiency is low; and, because the spatial position of factory building among the nuclear power station is narrow and small, the clearance height of hoist and mount is not enough, can't directly use ordinary lifting device to carry out the hoist and mount operation.
Among the prior art, the chinese utility model patent that the grant bulletin number is CN209322384U discloses a track hoist and mount conveyor and conveying system, through supporting mechanism, lift by crane the cooperation between mechanism and the conveying mechanism, realizes quick replacement track board, satisfies the site operation requirement. Although, the device can realize the functions of hoisting and conveying; however, it cannot be applied to a narrow and special space in a nuclear power plant, and cannot satisfy the requirements for lifting and transporting the burst valve.
SUMMERY OF THE UTILITY MODEL
Based on this, according to the narrow and small actual environment in space of nuclear power station blasting valve, combine the structural characteristic of blasting valve, the utility model provides a lifting transport device for nuclear power station blasting valve can be used for lifting by crane, upset and transportation of on-the-spot blasting valve, helps accomplishing the blasting valve and transports the checking of disintegrating to the repair shop.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a lift by crane conveyer for nuclear power station blast valve, including the frame, set up the mechanism and the setting of lifting by crane on the frame are in the operating space in the frame, still including:
the turnover mechanism is arranged on the frame and applies upward acting force to the blasting valve; the turnover mechanism and the hoisting mechanism respectively act on the front end and the rear end of the blast valve;
the moving mechanism is arranged at the bottom end of the frame, and the frame moves relative to the ground through the moving mechanism.
The operation space is a space provided for lifting and turning over the blasting valve; the front end and the rear end of the explosion valve refer to the two ends of the explosion valve in the longer dimension direction.
Therefore, after the explosion valve is lifted by the lifting and transporting device for the nuclear power station explosion valve, the explosion valve is turned from the vertical state to the horizontal state by the turnover mechanism, the explosion valve is transported away from the working position by the moving mechanism and is transported to a special transport trolley, and the transportation of the explosion valve is realized. The device improves the working efficiency and realizes the lifting, overturning and transferring operations in a narrow working space; the transfer in the horizontal state is more stable and efficient than the transfer in the vertical state; after the blasting valve is lifted for a certain height, the blasting valve is turned over, the lifting difficulty is reduced, and meanwhile the lifting space is saved.
Preferably, the lifting mechanism and the turnover mechanism are hoisting hoists.
Preferably, in the above technical solution, the hoisting mechanism is two hoisting hoists, and the hoisting hoists respectively act on the left side and the right side of the blast valve. The left and right sides of blasting valve means the left and right sides of the direction in the longer dimension of blasting valve self, and the purpose is in order to adopt two hoisting blocks to hoist together one end of blasting valve, prevents its deflection or rock.
Preferably, the frame comprises at least four supporting columns, at least four fixed beams and two bottom beams; the fixed beams respectively fix the top ends of the supporting upright columns in pairs; the lifting mechanism and the turnover mechanism are arranged on the fixed beam; the bottom beams respectively fix the bottom ends of the supporting upright columns, and the moving mechanism is arranged on the bottom beams.
Preferably, in the above technical solution, the hoisting mechanism further includes a steering wheel set for hoisting and steering, and the steering wheel set is disposed on the frame.
Preferably, the steering wheel set is arranged on the frame through a hoisting auxiliary beam; the hoisting auxiliary beam is fixed on the frame.
Preferably, the lifting and transporting device for the nuclear power station explosion valve further comprises an anti-falling bracket, wherein the anti-falling bracket is detachably arranged on the object hanging hole and used for preventing the frame from falling into the object hanging hole. The object hanging hole is a hole where the blasting valve works normally.
Preferably, the bottom beam is provided with a jackscrew hand wheel for detachably fixing the frame and the anti-falling bracket.
Preferably, the moving mechanism is a plurality of directional caster wheels with brakes.
Preferably, in the above technical solution, an inclined strut is disposed between the support pillar and the fixed beam.
Preferably, the hoist is driven by an electric device.
Preferably, the frame is provided with a storage pocket for storing a hoist chain of the hoist block.
In summary, the embodiment of the present application has the following beneficial effects:
firstly, after the explosion valve is lifted by the lifting and transporting device for the explosion valve of the nuclear power station, the turnover mechanism turns over the explosion valve from a vertical state to a horizontal state, and the moving mechanism transports the explosion valve away from the working position and transports the explosion valve to a special transport trolley, so that the transportation of the explosion valve is realized. The device improves the working efficiency and realizes the lifting, overturning and transferring operations in a narrow working space; the transfer in the horizontal state is more stable and efficient than the transfer in the vertical state; after the blasting valve is lifted for a certain height, the blasting valve is turned over, the lifting difficulty is reduced, and meanwhile the lifting space is saved.
And secondly, the hoisting mechanism and the turnover mechanism are realized by adopting a hoisting hoist, so that the hoisting mechanism has the advantages of high flexibility, small occupied space and high hoisting weight.
And thirdly, the two hoisting hoists are adopted by the hoisting mechanism to hoist the blasting valve simultaneously, so that the hoisting process is not easy to shake, the hoisting operation is more stable, and meanwhile, the operation safety is also improved.
Fourthly, the frame is formed by fixing at least four supporting columns, at least four fixed beams and two bottom beams, the structure is stable, large load can be borne, and hoisting operation is safer.
Fifthly, the hoisting mechanism adopts a steering wheel set to steer the hoisting chain and then hoists the explosion valve, and the hoisting block is arranged on the outer side of the frame in the mode, so that manual operation is facilitated; meanwhile, the structure enables the stress of the device to be more balanced, and is more favorable for the stability of hoisting; in addition, the hoisting mode enables the hoisting block and the blasting valve to be mutually staggered in the vertical direction, effectively utilizes the height of a hoisting space, and solves the problem of insufficient hoisting height.
And sixthly, the anti-falling bracket is arranged at the bottom of the lifting and transporting device for the nuclear power station explosion valve, so that the lifting and transporting device is prevented from sliding into a lifting hole when entering and exiting from the upper part of the lifting hole, and the safety of the lifting and transporting device during movement before and after lifting is ensured.
Seventhly, on the one hand, the jackscrew hand wheel is adopted to fix the lifting and transporting device and the anti-falling support together, and on the other hand, the moving mechanism adopts movable braking trundles, so that the stability of lifting and overturning operations is improved, and the lifting is safer and more efficient.
Eighth, the inclined strut is arranged between the supporting upright post and the fixed beam, so that the stability of the device can be improved.
Ninth, the hoist crane adopts electrodynamic type, can reduce manual work's intensity, the operation of being convenient for.
Tenth, set up on the frame and accomodate the bag, accomodate the lifting chain of hoist crane, be favorable to reducing the interference of operation in-process lifting chain to lifting by crane, upset and transfer action, reduce the risk of operation process, increase the security of operation.
Drawings
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a corresponding top view of the embodiment of FIG. 1;
FIG. 3 is a corresponding left side view of the embodiment of FIG. 1;
in the figure, 1 is a frame, 1.1 is a supporting upright post, 1.2 is a fixed beam, 1.3 is a bottom beam, 1.4 is a hoisting auxiliary beam, 1.5 is an inclined strut, 2 is a hoisting mechanism, 2.1 is a steering wheel set, 2.2 is a hoisting chain, 3 is a turnover mechanism, 4 is a moving mechanism, 5 is a blasting valve, 6 is an anti-falling bracket, 7 is a jackscrew hand wheel, 8 is a storage bag, a is an operation space in the frame, and b is a hoisting hole.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The embodiments of 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.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and outer "are used only for convenience of description, and the terms" center "," longitudinal "," lateral "," up "," down "," front "," back "," left "," right "," vertical "," horizontal "," top "," bottom "," inner "and" outer "are used only for convenience of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, if the terms "first" and "second" are used, they are used for distinguishing technical features, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
The present invention will be described in detail by way of examples with reference to the accompanying drawings.
In fig. 1 as a front view, the left-right direction in the drawing corresponds to the left-right direction of the apparatus, and the up-down direction in the drawing corresponds to the up-down direction of the apparatus. In fig. 2 as a plan view, the left-right direction in the drawing corresponds to the left-right direction of the apparatus, and the up-down direction in the drawing corresponds to the front-back direction of the apparatus. In fig. 3 as a left side view, the left-right direction in the drawing corresponds to the front-rear direction of the apparatus, and the up-down direction in the drawing corresponds to the up-down direction of the apparatus. In the following description of the embodiments, the terms "upper, lower, front, rear, left and right" are used for precise description, and the description language is simplified.
Example (b): referring to fig. 1 to 3, the lifting and transporting device for the nuclear power plant explosion valve comprises a frame 1, a lifting mechanism 2, a turnover mechanism 3, a moving mechanism 4 and an anti-falling bracket 6; the hoisting mechanism 2 is arranged on the frame 1 and is used for hoisting the explosion valve 5; the turnover mechanism 3 is arranged on the frame 1 and used for turning over the lifted blasting valve 5, namely turning over the blasting valve 5 from a vertical state to a horizontal state; the moving mechanism 4 is arranged at the bottom end of the frame 1 and is used for transferring the lifted and turned blasting valve; the anti-falling bracket 6 is detachably arranged above the object hanging hole b and used for preventing the frame 1 from falling into the object hanging hole b.
Referring to fig. 1 and 2, the lifting and transporting device for the nuclear power plant explosion valve has a left-right symmetrical structure, and reference numerals in the drawings only partially denote the structures with the same names, but do not affect the structural understanding of the device, and the meaning of the device can be easily understood by those skilled in the art.
Specifically, the frame 1 comprises four supporting upright posts 1.1, four fixed beams 1.2 and two bottom beams 1.3; the fixed beams 1.2 fix the top ends of the supporting upright columns 1.1 pairwise respectively; the bottom beam 1.3 is positioned at the bottom of the frame 1 and fixes the bottom ends of the two supporting upright posts 1.1 at the left side and the right side pairwise respectively. The support upright posts 1.1 are detachably fixed with the fixed beams 1.2 and the bottom beams 1.3, and are specifically connected through bolts. Adopt the fixed mode of detachable, the device can be disassembled after finishing using, is convenient for deposit and transport. And an inclined strut 1.5 is arranged between the support upright column 1.1 and the fixed beam 1.2 and used for enhancing the strength and stability of the frame 1.
The hoisting mechanism 2 comprises two hoisting hoists and two sets of steering wheel sets 2.1. The hoisting mechanism 2 comprises two independent hoisting structures which are respectively arranged on the left part and the right part of the frame 1 and are symmetrically arranged with each other. The hoisting structure on each side comprises a hoisting block and a group of steering wheel sets 2.1. The two common hoisting structures of the hoisting mechanism 2 provide a vertical and upward resultant force for the blasting valve 5 together, so that the hoisting operation is realized.
The two hoisting hoists are respectively arranged at one third of the front side direction of the fixed beams 1.2 at the left side and the right side. The hoisting block is connected with the fixed beam 1.2 through a connecting piece, and the connecting piece can be fixed on the fixed beam 1.2 through bolt connection or can be welded.
The steering wheel sets 2.1 all include last directive wheel and lower directive wheel, go up directive wheel and lower directive wheel and all install on lifting by crane auxiliary beam 1.4. Two hoisting auxiliary beams 1.4 for fixing the upper steering wheel are fixed on the left side and the right side of the upper part of the fixed beam 1.2 on the front side and the rear side in parallel, the two hoisting auxiliary beams 1.4 for fixing the lower steering wheel are respectively fixed on the supporting upright posts 1.1 on the left side and the right side in parallel, and the fixing modes are all fixed by bolts.
The hoist block and the steering wheel set 2.1 are positioned in a left-right direction aligned with each other. The hoisting chain of the hoisting block on each side is firstly steered through the lower steering wheel, then steered through the upper steering wheel and finally connected with one side of the blasting valve.
It is easy for those skilled in the art to think that the hoisting mechanism can be implemented by using other hoisting solutions besides the solution of hoisting block and steering wheel set, such as the solution of common combined application of movable pulley and fixed pulley, and the hoisting block is preferred in this application because it is commonly used in enterprises.
The turnover mechanism 3 is a crane block and is arranged in the middle of a fixed beam 1.2 at the rear side of the frame 1; the hoisting block is connected with the fixed beam 1.2 through a connecting piece, and the connecting piece can be fixed on the fixed beam 1.2 through bolt connection or can be welded.
The moving mechanism 4 is four directional brake trundles, is fixed on the bottom beam 1.3 by bolts and is used for transferring the lifted and turned blasting valve. It will be apparent to those skilled in the art that the moving mechanism 4 can be implemented by other moving mechanism solutions, such as sliding rails, caterpillar tracks, movable casters, etc., besides the directional brake casters.
The anti-falling bracket 6 is of an independent structure relative to the frame 1, is detachably arranged above the object hanging hole b and is used for preventing the frame 1 from falling into the object hanging hole b. Prevent weighing down support 6 formula mouth font structure as an organic whole, the side is provided with the arch about and avoids directly falling into in hanging the thing hole, and the front side is provided with the stopper, both can prevent to lift by crane the conveyor and fall into in hanging thing hole b, also can be right frame 1 is fixed a position. When the hoisting and conveying device is contacted with the limiting block, the hoisting mechanism 2 is just positioned right above the hoisting hole b, so that the blasting valve 5 can be conveniently hoisted.
A jackscrew hand wheel 7 is arranged on the bottom beam 1.3 and used for detachably fixing the frame 1 and the anti-falling bracket 6. The lifting and transporting device and the anti-falling bracket are fixed together by adopting the jackscrew hand wheel, so that the stability of lifting and overturning operations is increased, and the lifting is safer and more efficient.
The hoisting block in the embodiment can be manual or electric; wherein, two staff of manual formula's needs carry out the operation simultaneously at least, guarantee to lift by crane the balance of blast valve 5.
The corresponding position on the frame 1 is also provided with a storage bag 8 for storing a hoisting chain 2.2 of the hoisting block.
The general flow during operation is as follows: firstly, installing an anti-falling bracket 6 in an object hanging hole b; secondly, pushing the hoisting and transporting device into a hoisting operation position, locking directional brake trundles, and simultaneously rotating a jackscrew hand wheel 7 to fix the frame 1 and the anti-falling bracket 6 together; fourthly, installing the hoisting hoists of the hoisting mechanism 2 and the turnover mechanism 3 in place; fifthly, simultaneously operating the two hoisting hoists of the hoisting mechanism 2 to hoist the blasting valve 5, so that the height of the bottom surface of the blasting valve 5 exceeds about 10cm of the ground of the hoisting hole; sixthly, fixing the lower side of the lifted blasting valve 5 by adopting a hanging strip, and then operating a hoisting hoist of the turnover mechanism 3 to change the blasting valve 5 from a vertical state to a horizontal state; and seventhly, loosening the jackscrew hand wheel 7, opening a directional brake caster, pushing the hoisting and transporting device, moving the hoisting and transporting device to a special trolley specially used for transporting the blasting valve 5, and loading the trolley. Through the above operations, the hoisting, overturning and transferring work of the blast valve 5 is completed.
Therefore, the lifting and transporting device for the nuclear power station explosion valve improves the working efficiency and realizes lifting, overturning and transferring operations in a narrow working space; the transfer in the horizontal state is more stable and efficient than the transfer in the vertical state; after the blasting valve is lifted for a certain height, the blasting valve is turned over, the lifting difficulty is reduced, and meanwhile the lifting space is saved. In addition, the crane has the advantages of large flexibility, small occupied space, large hoisting weight and high safety and stability.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still fall within the scope of the technical solution of the present invention.
To sum up, the utility model discloses in structural design, use practicality and cost effectiveness, it is required to accord with industry development completely, and the structure that discloses also has unprecedented innovation structure, has novelty, creativity, practicality, accords with the regulation about novel patent essential, so the application is mentioned according to law.
Claims (10)
1. The utility model provides a lift by crane conveyer for nuclear power station blast valve, including frame (1), set up lift by crane mechanism (2) on frame (1) and set up in operation space (a) in frame (1), its characterized in that still including:
the turnover mechanism (3) is arranged on the frame (1) and applies upward acting force to the blasting valve (5); the turnover mechanism (3) and the hoisting mechanism (2) respectively act on the front end and the rear end of the blast valve (5);
the moving mechanism (4) is arranged at the bottom end of the frame (1), and the frame (1) moves relative to the ground through the moving mechanism (4).
2. A lifting transporter for nuclear power plant rupture valves as claimed in claim 1, wherein: the hoisting mechanism (2) and the turnover mechanism (3) are hoisting hoists.
3. A lifting transporter for nuclear power plant rupture valves as claimed in claim 1, wherein: the hoisting mechanism (2) is composed of two hoisting hoists which respectively act on the left side and the right side of the blasting valve (5).
4. A lifting and transporting device for a nuclear power plant rupture valve as claimed in claim 1, 2 or 3, wherein: the frame (1) comprises at least four supporting upright posts (1.1), at least four fixed beams (1.2) and two bottom beams (1.3); the fixed beams (1.2) respectively fix the top ends of the supporting upright columns (1.1) pairwise; the hoisting mechanism (2) and the turnover mechanism (3) are arranged on the fixed beam (1.2); the bottom end of the supporting upright post (1.1) is fixed by the bottom beam (1.3), and the moving mechanism (4) is arranged on the bottom beam (1.3).
5. A lifting transporter for nuclear power plant burst valves as claimed in claim 4, wherein: the hoisting mechanism (2) further comprises a steering wheel set (2.1) for hoisting and steering, and the steering wheel set (2.1) is arranged on the frame (1).
6. A lifting transporter for nuclear power plant burst valves as claimed in claim 5, wherein: the steering wheel set (2.1) is arranged on the frame (1) through a hoisting auxiliary beam (1.4); the auxiliary hoisting beam (1.4) is fixed on the frame (1).
7. A lifting transporter for nuclear power plant burst valves as claimed in claim 4, wherein: the anti-falling device is characterized by further comprising an anti-falling support (6), wherein the anti-falling support (6) is detachably arranged on the object hanging hole (b) and used for preventing the frame (1) from falling into the object hanging hole (b).
8. A lifting transporter for nuclear power plant rupture valves according to claim 7, characterized in that: the bottom beam (1.3) is provided with a jackscrew hand wheel (7) which is used for detachably fixing the frame (1) and the anti-falling bracket (6).
9. A lifting transporter for nuclear power plant rupture valves as claimed in claim 1, wherein: the moving mechanism (4) is a plurality of directional caster wheels with brakes.
10. A lifting transporter for nuclear power plant burst valves as claimed in claim 4, wherein: and an inclined strut (1.5) is arranged between the supporting upright post (1.1) and the fixed beam (1.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120305413.6U CN214326885U (en) | 2021-02-03 | 2021-02-03 | Lifting and transporting device for nuclear power station explosion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120305413.6U CN214326885U (en) | 2021-02-03 | 2021-02-03 | Lifting and transporting device for nuclear power station explosion valve |
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| Publication Number | Publication Date |
|---|---|
| CN214326885U true CN214326885U (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120305413.6U Active CN214326885U (en) | 2021-02-03 | 2021-02-03 | Lifting and transporting device for nuclear power station explosion valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719081A (en) * | 2022-04-08 | 2022-07-08 | 中国建筑第二工程局有限公司 | Pipeline installation system of nuclear power plant and pipeline installation method of nuclear power plant |
-
2021
- 2021-02-03 CN CN202120305413.6U patent/CN214326885U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719081A (en) * | 2022-04-08 | 2022-07-08 | 中国建筑第二工程局有限公司 | Pipeline installation system of nuclear power plant and pipeline installation method of nuclear power plant |
| CN114719081B (en) * | 2022-04-08 | 2023-11-14 | 中国建筑第二工程局有限公司 | Pipeline installation system of nuclear power station and pipeline installation method of nuclear power station |
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