CN206379184U - Nuclear power plant's C&P systems underwater operation instrument - Google Patents

Nuclear power plant's C&P systems underwater operation instrument Download PDF

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Publication number
CN206379184U
CN206379184U CN201621380286.1U CN201621380286U CN206379184U CN 206379184 U CN206379184 U CN 206379184U CN 201621380286 U CN201621380286 U CN 201621380286U CN 206379184 U CN206379184 U CN 206379184U
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China
Prior art keywords
power plant
nuclear power
systems
underwater operation
operation instrument
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CN201621380286.1U
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Chinese (zh)
Inventor
莫怀森
陈耀
宁新献
袁呈煜
谭经耀
李媛
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China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
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China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The utility model discloses a kind of nuclear power plant's C&P systems underwater operation instrument, it includes upper component and lower member, upper component includes upper frame, the operation handle on upper frame, lifting mechanism and electric cabinet, lower member includes tool collar, control rod leading truck and the grappling fixture component being connected with each other successively, wherein, upper component also includes steel wire rope guidance system and load detection mechanism.Relative to prior art, the utility model nuclear power plant C&P systems underwater operation tool construction is compact, greatly reduce the volume and weight of instrument, the problem of efficiently solving delayed load measurement and low precision, sensitivity, precision and the fast response time in practical operation are improved, the active conductor rope mechanism of introducing solves the problem of conventional tool steel cord is overlapping.

Description

Nuclear power plant's C&P systems underwater operation instrument
Technical field
The utility model belongs to technical field of nuclear power, more specifically, and the utility model is related to a kind of nuclear power plant's control rod Component underwater operation instrument.
Background technology
At present, in technical field of nuclear power, C&P systems are used for the reactivity for controlling fuel assembly, absorb fuel assembly and split Become the fast neutron and thermal neutron produced, vital effect is played to nuclear reactor safety operation and shutdown.In nuclear power factory and office Carry out displacement C&P systems work between fuel assembly under water during cold-refueling, it is necessary in Spent Fuel Pool, and will C&P systems insertion is needed in the fuel assembly with C&P systems, and it is to rely on operator above pond by weary that it, which is operated, Fuel pit crane and C&P systems underwater operation instrument are realized.
Existing typical C&P systems underwater operation instrument is mainly made up of upper component and lower member, wherein, on Portion's component includes synchronous motor-belt transmission-decelerator-drum mechanism built, to realize the lifting and decline of C&P systems, top Component is provided with operation handle, for operating crawl and release control rod assembly grappling fixture component;Lower member is to carry several stars The metal structure of shape guide plate, lifting and decline for C&P systems provide guiding, and its bottom is provided with C&P systems grappling fixture And driven by the operation handle of upper component.
Because nuclear power plant's C&P systems underwater operation is carried out above Spent Fuel Pool, working environment is poor, radiation The quality of irradiation, illumination and operation instrument directly affects the safety and efficiency of operation.Current C&P systems are grasped under water There is many deficiencies in the design for making instrument, including:Upper component uses old-fashioned transmission chain structure, and overall volume is big, heavy, influence The operation of operating personnel;By adjusting proximity switch and swing connecting bar Distance Judgment in super underload detection, error range is larger, Accurate monitoring can not be accomplished;Reel steel wire ropes use passive type conductor rope mode, easily occur steel wire rope overlapping.
In view of this, it is necessory to provide a kind of compact conformation, easy-to-operate nuclear power plant's C&P systems under water Operation instrument.
Utility model content
The purpose of this utility model is:Nuclear power plant's C&P systems of a kind of compact conformation, easy-to-operate are provided Underwater operation instrument.
In order to realize above-mentioned utility model purpose, the utility model provides a kind of nuclear power plant's C&P systems underwater operation Instrument, it includes upper component and lower member, and upper component includes upper frame, the manipulator on upper frame Handle, lifting mechanism and electric cabinet, lower member include tool collar, control rod leading truck and the grappling fixture group being connected with each other successively Part, wherein, upper component also includes steel wire rope guidance system and load detection mechanism.
Improved as one kind of the utility model nuclear power plant C&P systems underwater operation instrument, the lifting mechanism includes Servomotor, decelerator and the reel provided with driving gear.
Improved as one kind of the utility model nuclear power plant C&P systems underwater operation instrument, the steel wire rope is oriented to system System include support, steel wire rope guide wheel, the guide rod being fixed on support, one end Moveable-jacket loaded on guide rod guide plate, and Driven gear that reel driving gear is meshed, two ends be pivotally mounted to the screw mandrel being connected on support and with driven gear and Feed screw nut, the other end of guide plate is connected on feed screw nut's end face, and the steel wire rope guide wheel is rotationally set in screw mandrel On nut.
Improved as one kind of the utility model nuclear power plant C&P systems underwater operation instrument, the motion of the steel wire rope Distance is measured by the absolute encoder of reel shaft end.
Improved as one kind of the utility model nuclear power plant C&P systems underwater operation instrument, the load detection mechanism Including supporting plate, the detection guide wheel and upper and lower guide wheel that are pivotally mounted in supporting plate, and being fixed on detection guide wheel Force snesor.
Improved as one kind of the utility model nuclear power plant C&P systems underwater operation instrument, the detection guide wheel is located at Between upper block and lower tumbler, and three guide wheels are triangularly arranged, and steel wire rope is passed through between three guide wheels.
Improved as one kind of the utility model nuclear power plant C&P systems underwater operation instrument, the control of the lower member Rod leading truck processed includes several star plates, pull bar, sleeve pipe and the adjusting lever for adjusting leading truck length.
Improve, set inside the star plate as one kind of the utility model nuclear power plant C&P systems underwater operation instrument There is perforate, the shape and size of perforate and the structure of C&P systems match.
Improved as one kind of the utility model nuclear power plant C&P systems underwater operation instrument, the pull bar is interspersed in set Star plate is fixed in Guan Zhong, two with nut check.
Relative to prior art, the utility model nuclear power plant C&P systems underwater operation tool construction is compact, contracts significantly The small volume and weight of instrument, and advanced servomotor, load transducer and absolute encoder have been used, effectively solve Load measurement of having determined is delayed and the problem of low precision, improves sensitivity, precision and the fast response time in practical operation, introduces Active conductor rope mechanism solve the problem of conventional tool steel cord is overlapping.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, to the utility model nuclear power plant C&P systems underwater operation instrument and Its advantageous effects is described in detail, wherein:
Fig. 1 show the structural representation of the utility model nuclear power plant C&P systems underwater operation instrument.
Fig. 2 is the structural representation of upper component shown in Fig. 1.
Fig. 3 is the structural representation of steel wire rope guidance system shown in Fig. 2.
Fig. 4 is the structural representation of load detection mechanism shown in Fig. 2.
Fig. 5 is the schematic cross-sectional view of load detection mechanism shown in Fig. 2.
Fig. 6 is the structural representation of control rod leading truck shown in Fig. 1.
Fig. 7 is the structural representation of gripper component shown in Fig. 1.
Fig. 8 a to Fig. 8 d show the vertical of the upper component of the utility model nuclear power plant C&P systems underwater operation instrument Stereogram and three direction views.
Embodiment
In order that goal of the invention of the present utility model, technical scheme and its advantageous effects become apparent from, below in conjunction with The drawings and specific embodiments, the utility model is further elaborated.It should be appreciated that described in this specification Embodiment just for the sake of explain the utility model, be not intended to limit the utility model.
Refer to shown in Fig. 1 and 2, the utility model nuclear power plant C&P systems underwater operation instrument mainly includes top structure Part 10, tool collar 20, control rod leading truck 30 and grappling fixture component 40.The utility model nuclear power plant C&P systems underwater operation Instrument is hung on Spent Fuel Pool hoist lifting hook by peg 50, and positioning of the instrument above fuel assembly is hung by Spent Fuel Pool Car is realized, the lifting of instrument and descends through Spent Fuel Pool crane electric operating;The lifting of C&P systems and descend through Capture lifting mechanism to realize, crawl and release are realized by operating personnel's Manual operation handle 106.
Upper component 10 include upper frame 100, servomotor 102, decelerator 104, operation handle 106, reel 108, Steel wire rope guidance system 110, load detection mechanism 112 and electric cabinet 114.Servomotor 102, decelerator 104, reel 108 The lifting mechanism of formation instrument, drives rope hoisting and declines C&P systems.
Refer to shown in Fig. 3, steel wire rope guidance system 110 includes steel wire rope guide wheel 1100, screw mandrel 1102, driven gear 1104th, feed screw nut 1106, guide plate 1108, guide rod 1110 and support 1112.The two ends of screw mandrel 1102 can by bearing It is rotatablely installed and is fixedly connected with support 1112 and with driven gear 1104, the two ends of guide rod 1110 is connected on support 1112. One end Moveable-jacket of guide plate 1108 is on guide rod 1110, and the other end is fixedly connected on feed screw nut 1106.Steel wire Rope guide wheel 1100 is rotatably set on feed screw nut 1106 by bearing.The output shaft 1040 of reel 108 and decelerator 104 leads to Cross key connection to be connected, the driving gear 1080 on reel 108 and the synchronous axial system of reel 108 drive driven gear 1104 to rotate, entered And drive screw mandrel 1102 to rotate, feed screw nut 1106 does left and right linear motion in the case where guide plate 1108 and guide rod 1110 coordinate, The side-to-side movement of steel wire rope guide wheel 1100 is driven to cause steel wire rope actively to import drum rope groove.The move distance of steel wire rope passes through reel The absolute encoder 1114 of 108 shaft ends is measured.
Refer to shown in Fig. 4 and Fig. 5, load detection mechanism 112 includes supporting plate 1120, detection guide wheel 1122, is connected in Tension sensor 1124, upper block 1126 and the lower tumbler 1128 on guide wheel 1122 are detected, three guide wheels are pivotally mounted to respectively In supporting plate 1120.Detect that guide wheel 1122 is located between upper block 1126 and lower tumbler 1128, and three guide wheels are triangular in shape Position relationship is arranged in supporting plate 1120, and steel wire rope 1130 is passed through between three guide wheels.Tension sensor 1124 passes through inspection Survey 1130 pairs of detection guide wheels of steel wire rope active force, measure the tension force of steel wire rope, thus measure C&P systems operation carry Lotus, and by load information conveying control system, judge the super state under load of operation.
Refer to shown in Fig. 6, bottom control rod leading truck 30 includes several star plates 300, pull bar 302, the and of sleeve pipe 304 Adjusting lever 306.During C&P systems are lifted and are declined, C&P systems are passed through from the inside of star plate 300, and to control Rod is oriented to and protected, and its hole shape and size and the structure of C&P systems match.Pull bar 302 is interspersed in sleeve pipe In 304, two nut check is to fix the position of star plate 300.
Refer to shown in Fig. 7, grappling fixture component 40 includes connecting rod 400, operation pull bar 402, wing plate 404, guide rod 406, grabbed Pawl 408 and sleeve pipe 410, operation pull bar 402 are flexibly connected with wing plate 404, and there is a core bar inside of gripper 408 and sleeve pipe 410, Core bar, which is moved down, to open the top of gripper 408, and core bar, which is moved up, can shrink gripper 408.Operation handle 108 can make operation pull bar 402 Upper and lower action, and then cause operation pull bar 402 to pull wing plate 404 to make corresponding upper and lower action, and wing plate 404 and the core at center Bar is connected so that core bar can shrink gripper 408 or gripper 408 is opened on top.After the insertion control rod of grappling fixture component 40, gripper 408 leads to Cross and open and shrink to realize the release and crawl to control rod.The top of connecting rod 400 is connected with steel wire rope of windlass.Gripper 408 have captured after control rod, and hoist engine can lift/decline said modules and control rod.Guide rod 406 is component in star plate In offer guide effect is provided.
Refer to shown in Fig. 8 a to 8d, in order to preferably represent between C&P systems underwater operation instrument critical piece Relation, present description provides the three-dimensional view of the upper component of the utility model nuclear power plant C&P systems underwater operation instrument With three direction views, wherein, handle 116 of meeting an urgent need the lifting of manually operated C&P systems and can decline under emergency conditions, normally Period, emergent handle 116 can pull down storage.
It should be noted that in other embodiment of the present utility model, thus it is possible to vary the arrangement form of superstructure, The combining structure of used servomotor 102 and decelerator 104 is substituted using three-in-one motor;Leading for steel wire rope can be changed Restricted mechanism, and three used guide wheels are substituted using rope processing device;The need for actual control rod guide body structure, Ke Yigai Become the respective numbers of star plate.
The utility model nuclear power plant C&P systems underwater operation instrument is used to control between spent nuclear fuel in nuclear power plant component Crawl, lifting, insertion, release of rod assembly etc. are acted, and realize C&P systems remote safety operation and in fuel under water Inter-module replaces C&P systems.Nuclear power plant's C&P systems underwater operation instrument the top of fuel assembly position positioning by Spent Fuel Pool crane is realized, then by the lifting and decline of Spent Fuel Pool crane electric operating implementation tool, completes core After the positioning both horizontally and vertically of power plant's C&P systems underwater operation instrument, the manual control operation handle of operating personnel 106 up and down action, realizes the crawl and release to C&P systems.
In the lifting process to C&P systems, C&P systems are passed through from the inside of star plate 300, can be to control rod Component is oriented to and protected;Steel wire rope guidance system 110 drives steel wire rope actively to import in drum rope groove, it is to avoid steel wire rope is sent out Life is overlapping;And steel wire rope tension is measured in real time using load detection mechanism 112, realize to C&P systems operation load Accurate detection, and load information is sent to control system, so as to judge the super underload problem of operation.
Detailed description to the utility model embodiment with reference to more than can be seen that relative to prior art, this practicality Nucleus power plant C&P systems underwater operation tool construction is compact, greatly reduces the volume and weight of instrument, and employs Advanced servomotor, load transducer and absolute encoder, efficiently solve that load measurement is delayed and low precision is asked Topic, improves sensitivity, precision and the fast response time in practical operation, while introducing active conductor rope mechanism, solves The problem of tool steel cord is overlapping in the past.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality The mode of applying carries out appropriate change and modification.Therefore, the utility model is not limited to specific implementation disclosed and described above Some modifications and changes of the present utility model should also be as falling into scope of the claims of the present utility model by mode. Although in addition, used some specific terms in this specification, these terms merely for convenience of description, not to this reality With any limitation of new composition.

Claims (9)

1. a kind of nuclear power plant's C&P systems underwater operation instrument, it includes upper component and lower member, wherein, upper component Operation handle, lifting mechanism and electric cabinet including upper frame, on upper frame, lower member include mutual successively Tool collar, control rod leading truck and the grappling fixture component of connection, it is characterised in that:The upper component also includes steel wire rope and is oriented to System and load detection mechanism.
2. nuclear power plant's C&P systems underwater operation instrument according to claim 1, it is characterised in that:The lifting mechanism Reel including servomotor, decelerator and provided with driving gear.
3. nuclear power plant's C&P systems underwater operation instrument according to claim 1 or 2, it is characterised in that:The steel wire Rope guidance system includes support, steel wire rope guide wheel, the guide rod being fixed on support, one end Moveable-jacket leading loaded on guide rod The driven gear that is meshed to plate, with reel driving gear, two ends are pivotally mounted to what is be connected on support and with driven gear Screw mandrel and feed screw nut, the other end of guide plate are connected on feed screw nut's end face, and the steel wire rope guide wheel rotationally covers Loaded on feed screw nut.
4. nuclear power plant's C&P systems underwater operation instrument according to claim 3, it is characterised in that:The steel wire rope Move distance is measured by the absolute encoder of reel shaft end.
5. nuclear power plant's C&P systems underwater operation instrument according to claim 1, it is characterised in that:The load detection Mechanism includes supporting plate, the detection guide wheel and upper and lower guide wheel being pivotally mounted in supporting plate, and is fixed on detection guide wheel Tension sensor.
6. nuclear power plant's C&P systems underwater operation instrument according to claim 5, it is characterised in that:The detection guide wheel Between upper block and lower tumbler, and three guide wheels are triangularly arranged, and steel wire rope is passed through between three guide wheels.
7. nuclear power plant's C&P systems underwater operation instrument according to claim 1, it is characterised in that:The lower member Control rod leading truck include several star plates, pull bar, sleeve pipe and the adjusting lever for adjusting leading truck length.
8. nuclear power plant's C&P systems underwater operation instrument according to claim 7, it is characterised in that:In the star plate Portion is provided with perforate, and the shape and size of perforate and the structure of C&P systems match.
9. nuclear power plant's C&P systems underwater operation instrument according to claim 7, it is characterised in that:The pull bar interts In sleeve pipe, star plate is fixed in two with nut check.
CN201621380286.1U 2016-12-15 2016-12-15 Nuclear power plant's C&P systems underwater operation instrument Active CN206379184U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108648841A (en) * 2018-06-01 2018-10-12 中广核核电运营有限公司 Nuclear power plant's control rod associated component switches tool
CN108766606A (en) * 2018-06-01 2018-11-06 中广核核电运营有限公司 Nuclear power plant's burnable poison assembly switches tool with Neutron source assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108648841A (en) * 2018-06-01 2018-10-12 中广核核电运营有限公司 Nuclear power plant's control rod associated component switches tool
CN108766606A (en) * 2018-06-01 2018-11-06 中广核核电运营有限公司 Nuclear power plant's burnable poison assembly switches tool with Neutron source assembly
CN108766606B (en) * 2018-06-01 2020-08-14 中广核核电运营有限公司 Burnable poison assembly and neutron source assembly switching tool for nuclear power plant
CN108648841B (en) * 2018-06-01 2020-10-16 中广核核电运营有限公司 Nuclear power plant control rod related assembly switching tool

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