CN203372980U - Detachable top cover hanger applicable to pressurized water reactor - Google Patents

Detachable top cover hanger applicable to pressurized water reactor Download PDF

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Publication number
CN203372980U
CN203372980U CN201320435619.6U CN201320435619U CN203372980U CN 203372980 U CN203372980 U CN 203372980U CN 201320435619 U CN201320435619 U CN 201320435619U CN 203372980 U CN203372980 U CN 203372980U
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China
Prior art keywords
ring
star
detachable
ring plate
annular plate
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Application number
CN201320435619.6U
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Chinese (zh)
Inventor
穆伟
杨其辉
何大明
钟元章
瓮松峰
余志伟
徐林祥
陶志英
湛卉
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Nuclear Power Institute of China
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Nuclear Power Institute of China
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Abstract

The utility model relates to a detachable top cover hanger applicable to a pressurized water reactor. The detachable top cover hanger comprises an annular track, a star-shaped bracket, an upper hanging rod and a lower hanging rod, wherein the upper hanging rod and the lower hanging rod are fixedly connected with the star-shaped bracket; the annular track is in an annular beam structure of which the section is I-shaped, and comprises an upper annular plate, a lower annular plate and a ring; the ring is positioned between the upper annular plate and the lower annular plate and is perpendicular to the upper annular plate and the lower annular plate; the inner diameter of the upper annular plate is smaller than that of the lower annular plate; the outer diameter of the star-shaped bracket is greater than the inner diameter of the upper annular plate and is smaller than the inner diameter of the lower annular plate; the lower surface of the upper annular plate is connected with four ends of the star-shaped bracket in a detachable manner; a hanging hook is arranged at the upper end of the upper hanging rod. By virtue of the detachable top cover hanger, an installation space of a reactor top can be saved, a great economic benefit is generated, and a split bolt stretcher annular track can be assembled and disassembled.

Description

A kind of detachable top cover suspender that is applicable to pressurized water reactor
Technical field
The present invention relates to pressurized-water reactor nuclear power plant PRV head package technical field, be specifically related to a kind of detachable top cover suspender that is applicable to pressurized water reactor.
Background technology
The top cover suspender is the important component part of pressurized water reactor reactor roof construction.In the heap roof construction, the top cover suspender has handling function, supporting functions and guide function, and provides the ring rail for the Split type bolt stretcher.Wherein handling function is when pressure container installation, reactor refuling and pressure container internal overhaul, and pressure vessels top cover, driver train and heap roof construction Integral lifting to determined location are deposited; Work and completely again pressure vessels top cover is installed from depositing place handling to reactor pressure vessel.Supporting functions is under the reactor mode of operation, and the antidetonation carrier ring is fixed under suspender on suspension rod, and under suspender, suspension rod is for supporting the heap roof constructions such as antidetonation bearing assembly, cable testing bridge.Guide function is to open at reactor, during buckle closure, need use integral type bolt stretching machine handling king bolt.When the lifting bolt stretching machine, be fixed on two guide rails on suspension rod under the top cover suspender and provide directional tagging for it, accurately in place while guaranteeing the bolt stretching machine lifting.
At present both at home and abroad in the top cover suspender of pressurized water reactor, Split type bolt stretcher ring rail used is weldingly fixed in the top lifting piece of top cover suspender, and this welded structure need guarantee to encircle the planeness of the orbit plane of rail, and processing and manufacturing is difficult to guarantee.In the disassembly process on heap top, the ring rail in the top cover suspender and cable testing bridge etc. will produce the problems such as interference, need dismounting lifting piece multi-pass operation to solve.
Summary of the invention
The technical matters that will solve of the present invention is to provide a kind of pressurized water reactor that is applicable to, and can save heap top installing space, and with the top cover suspender of split type removable ring rail.
In order to solve the problems of the technologies described above, technical scheme of the present invention is, a kind of detachable top cover suspender that is applicable to pressurized water reactor, and it comprises ring rail, star-shaped support, also comprises the upper hanger and the lower suspension rod that are fixedly connected with star-shaped support;
Described ring rail is that cross section is the ring beam structure of " work " font, comprises upper ring plate, lower ring plate, between described upper ring plate and lower ring plate and equal rings vertical with lower ring plate with described upper ring plate; The internal diameter of described upper ring plate is less than the internal diameter of described lower ring plate;
The external diameter of described star-shaped support is greater than the internal diameter of described upper ring plate, and is less than the internal diameter of described lower ring plate;
Four detachable connections of termination of the lower surface of upper ring plate and described star-shaped support;
The upper end of described upper hanger is provided with suspension hook.
The lower surface of described upper ring plate is connected with four terminations of described star-shaped support by bolt.
Described suspension hook is the cross suspension hook, and upper end is suspension ring, and lower end is cross structure, and four ends are respectively equipped with mounting hole.
Described ring rail top is provided with workplatform, and its edge is provided with guardrail, and the workplatform bottom is provided with hole, and described upper hanger is through the hole of workplatform bottom.
Beneficial effect of the present invention:
(1) adopted the structure of Split bolt stretcher ring rail disassembled, when not using the Split type bolt stretcher, can remove the ring rail from the top cover suspender, place it in assigned address, when need are used the Split type bolt stretcher, the handling of ring rail is arranged on the lifting piece of top cover suspender.So both save the space of depositing top cover suspender lifting piece in containment, can save again the time that install on the heap top;
(2) Split type bolt stretcher ring rail used is integral hoisting, is mounted by means of bolts on the contiguous block of top cover suspender star-shaped support, and it is simple in structure, easily manufactured, is easy to install.After the ring rail of removing the Split type bolt stretcher, while using the integral type bolt stretching machine, the lifting piece of top cover suspender can be removed, thereby further reduces the control step on heap top, reduces the operating time on heap top, thereby produces larger economic benefit.
(3) 4 of Split type bolt stretcher ring rail and star-shaped support positions are bolted; Weld seam in star-shaped support in the handling process, be squeezed power but not pulling force, relative safety is higher.The internal diameter size of the bottom section of ring rail is greater than the maximum outside diameter of star-shaped support, realizes Split type bolt stretcher ring rail is installed and removed.
The accompanying drawing explanation
Fig. 1 is a kind of detachable top cover suspender schematic diagram that is applicable to pressurized water reactor of the present invention;
Fig. 2 is that a kind of detachable top cover suspender that is applicable to pressurized water reactor of the present invention splits ring rail process schematic diagram;
The connection diagram that Fig. 3 is ring rail and star-shaped support in a kind of detachable top cover suspender that is applicable to pressurized water reactor of the present invention.
In figure: 1. suspension hook; 2. workplatform; 3. upper hanger; 4. star-shaped support; 5. ring rail; 501. upper ring plate; 502. lower ring plate; 503. ring; 504. tie bolt; 6. descend suspension rod; 7. hoisting ring rail steel silk rope.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
As shown in Figure 1, a kind of detachable top cover suspender that is applicable to pressurized water reactor of the present invention, comprise ring rail 5, star-shaped support 4, upper hanger 3, lower suspension rod 6, workplatform 2, hoisting ring rail steel silk rope 7;
Described ring rail 5 is for cross section is the ring beam structure of " work " font, comprises upper ring plate 501, lower ring plate 502, between described upper ring plate 501 and lower ring plate 502 and equal rings 503 vertical with lower ring plate 502 with described upper ring plate 501; The internal diameter of described upper ring plate 501 is less than the internal diameter of described lower ring plate 502;
Described star-shaped support 4 is for being criss-cross, and four end machining have tapped bore; The external diameter of described star-shaped support 4 is greater than the internal diameter of described upper ring plate 501, and is less than the internal diameter of described lower ring plate 502;
The lower surface of the upper ring plate 501 of ring rail 5 is the tapped bore screw thread fit with four terminations of described star-shaped support 4 by tie bolt 504, realizes detachable connection;
Above star-shaped support 4, four ends of criss cross fixedly mount upper hanger 3 by bearing pin respectively.Below star-shaped support 4, four ends of criss cross by bearing pin, fixedly mount respectively under suspension rod 6.
The lower end of upper hanger 3 is connected with star-shaped support 4, and upper end is connected on suspension hook 1.This suspension hook 1 is the cross suspension hook, and upper end is suspension ring, and lower end is cross structure, and four ends are processed with respectively mounting hole, by the fixing upper end of upper hanger 3 of bearing pin.
Easy to operate for the staff, also installed workplatform 2, and this workplatform 2 can be circle, and edge is processed with guardrail, and the processing of platform bottom is porose, and above-mentioned upper hanger 3 is through the hole of workplatform 2 bottoms.
During work, lower suspension rod 6 is connected with the hanger on pressure vessels top cover by bearing pin, and upper end is connected with the hole on pinion carrier by bearing pin.During reactor operation, suspension hook 1, workplatform 2, upper hanger, star-shaped support 4 can be used as an integral structure and will be removed; Realize that by the hoisting ring rail steel silk rope 7 be connected on ring rail 5 ring rail 5 separates with above-mentioned integral structure;
In the time of need to lifting by crane the heap roof construction when reactor is uncapped, suspension hook 1, workplatform 2, upper hanger 3, star-shaped support 4, ring rail 5 are installed to the upper end of lower suspension rod 6, then on ring rail 5, hoist ceiling crane is installed and is used for promoting the king bolt stretcher, king bolt will encircle rail 5 and be connected and leave whole heap roof construction under order reactor with suspension hook 1 after removing.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.If these are revised and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.

Claims (4)

1. a detachable top cover suspender that is applicable to pressurized water reactor is characterized in that: it comprises ring rail, star-shaped support, also comprises the upper hanger and the lower suspension rod that are fixedly connected with star-shaped support;
Described ring rail is that cross section is the ring beam structure of " work " font, comprises upper ring plate, lower ring plate, between described upper ring plate and lower ring plate and equal rings vertical with lower ring plate with described upper ring plate; The internal diameter of described upper ring plate is less than the internal diameter of described lower ring plate;
The external diameter of described star-shaped support is greater than the internal diameter of described upper ring plate, and is less than the internal diameter of described lower ring plate;
Four detachable connections of termination of the lower surface of upper ring plate and described star-shaped support;
The upper end of described upper hanger is provided with suspension hook.
2. a kind of detachable top cover suspender that is applicable to pressurized water reactor as claimed in claim 1, it is characterized in that: the lower surface of described upper ring plate is connected with four terminations of described star-shaped support by bolt.
3. a kind of detachable top cover suspender that is applicable to pressurized water reactor as claimed in claim 1 or 2, it is characterized in that: described suspension hook is the cross suspension hook, and upper end is suspension ring, and lower end is cross structure, and four ends are respectively equipped with mounting hole.
4. a kind of detachable top cover suspender that is applicable to pressurized water reactor as claimed in claim 1 or 2, it is characterized in that: described ring rail top is provided with workplatform, its edge is provided with guardrail, and the workplatform bottom is provided with hole, and described upper hanger is through the hole of workplatform bottom.
CN201320435619.6U 2013-07-22 2013-07-22 Detachable top cover hanger applicable to pressurized water reactor Active CN203372980U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320435619.6U CN203372980U (en) 2013-07-22 2013-07-22 Detachable top cover hanger applicable to pressurized water reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320435619.6U CN203372980U (en) 2013-07-22 2013-07-22 Detachable top cover hanger applicable to pressurized water reactor

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104766641A (en) * 2015-03-20 2015-07-08 中国第一重型机械集团大连加氢反应器制造有限公司 Civilian nucleus top cover tube base cold installation and turnover device
CN107134300A (en) * 2017-05-03 2017-09-05 中国核动力研究设计院 A kind of boom hoisting for Technologies of PWR Vessels cap assembly
CN110498340A (en) * 2019-08-09 2019-11-26 哈电集团(秦皇岛)重型装备有限公司 A kind of sealing bolt stretcher handling apparatus and the method using its progress handling
CN110510508A (en) * 2019-08-29 2019-11-29 哈电集团(秦皇岛)重型装备有限公司 Temperature gas cooled reactor steam generator internals suspender and hanging method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104766641A (en) * 2015-03-20 2015-07-08 中国第一重型机械集团大连加氢反应器制造有限公司 Civilian nucleus top cover tube base cold installation and turnover device
CN107134300A (en) * 2017-05-03 2017-09-05 中国核动力研究设计院 A kind of boom hoisting for Technologies of PWR Vessels cap assembly
CN107134300B (en) * 2017-05-03 2019-04-30 中国核动力研究设计院 A kind of boom hoisting for Technologies of PWR Vessels cap assembly
CN110498340A (en) * 2019-08-09 2019-11-26 哈电集团(秦皇岛)重型装备有限公司 A kind of sealing bolt stretcher handling apparatus and the method using its progress handling
CN110510508A (en) * 2019-08-29 2019-11-29 哈电集团(秦皇岛)重型装备有限公司 Temperature gas cooled reactor steam generator internals suspender and hanging method
CN110510508B (en) * 2019-08-29 2020-12-25 哈电集团(秦皇岛)重型装备有限公司 Lifting appliance and lifting method for internal parts of high-temperature gas cooled reactor steam generator

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