CN106297924A - A kind of suitching type lifting stop device - Google Patents
A kind of suitching type lifting stop device Download PDFInfo
- Publication number
- CN106297924A CN106297924A CN201610889201.0A CN201610889201A CN106297924A CN 106297924 A CN106297924 A CN 106297924A CN 201610889201 A CN201610889201 A CN 201610889201A CN 106297924 A CN106297924 A CN 106297924A
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- CN
- China
- Prior art keywords
- fuel
- operating mode
- namely
- stop device
- suitching type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/32—Apparatus for removing radioactive objects or materials from the reactor discharge area, e.g. to a storage place; Apparatus for handling radioactive objects or materials within a storage place or removing them therefrom
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/10—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The present invention provides a kind of suitching type lifting stop device, comprising: handle, it is configured to perform common operating mode, namely when being positioned at location A during fresh fuel step-down operation, is performing spentnuclear fuel maintenance operating mode, namely when spentnuclear fuel band carries lifting operations, be positioned at B location；Stop block, it is configured to perform common operating mode, namely during fresh fuel step-down operation, is in a position, is performing spentnuclear fuel maintenance operating mode, namely when spentnuclear fuel band carries lifting operations, is being in b position.The suitching type lifting stop device that the present invention provides, can decline at fresh fuel and carry out quickly and accurately switching between spentnuclear fuel lifting both of which.
Description
Technical field
The present invention relates to a kind of suitching type lifting stop device.
Background technology
New fuel elevator is positioned at the fuel handling region of auxiliary plant, for by novel fuel assembly (or band plug-in part)
Drop to Spent Fuel Pool from auxiliary plant operating platform hall, thus allow to connect the fuel of irradiated fuel assembly operation instrument
Gripper carries out underwater operation to novel fuel assembly.It addition, postdose fuel assembly (irradiated fuel assembly) is carried out check and
During reparation, new fuel elevator is also with auxiliary equipment platform when can operate as irradiated fuel assembly inspection and reparation.
Owing to irradiated fuel assembly has shielding requirements, the shield water layer thickness that its holding required above is enough, carrying out
When irradiated fuel assembly carries out checking and repairing (spentnuclear fuel maintenance), elevator needs band to carry lifting, and the height of lifting must not
Can exceed that certain defined position and it needs to have enough guarantees.As occurred postdose fuel assembly overtravel to promote, then can cause
Shielding water layer is not enough, and auxiliary plant fuel handling area radiation dosage transfinites the nuclear safety accident of value.
The present invention devises a kind of suitching type lifting stop device, can decline and spentnuclear fuel two kinds of moulds of lifting at fresh fuel
Carry out between formula quickly and accurately switching.This device is arranged on the track component of new fuel elevator, mainly by stop block, turn
Axle, handle and installing plate composition.Installing plate and epimere parallel track, handle is installed in rotating shaft upper end, and stop block is arranged on rotating shaft
Bottom, handle can drive rotating shaft and stop block to rotate.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of suitching type lifting stop device.
Suitching type lifting stop device includes:
Handle, it is configured to perform common operating mode, namely when being positioned at location A during fresh fuel step-down operation, is performing
Spentnuclear fuel maintenance operating mode, namely when spentnuclear fuel band carries lifting operations, it is positioned at B location；
Stop block, it is configured to perform common operating mode, namely during fresh fuel step-down operation, is in a position, is performing
Spentnuclear fuel maintenance operating mode, namely when spentnuclear fuel band carries lifting operations, it is in b position.
Preferably, also including fuel-basket, it is configured to perform common operating mode, namely during fresh fuel step-down operation, can
Have free passage in orbit, performing spentnuclear fuel maintenance operating mode, namely when spentnuclear fuel band carries lifting operations, will if rising overtravel
Being stoped by stop block, causing shield water layer thickness not enough in order to avoid continuing rising.
Preferably, during common operating mode operates, described fuel-basket band carries after dropping to lower operating position, fuel capture
After machine operation long handle instrument takes out fuel assembly, fuel-basket zero load rises to operating position.
Compared with prior art, the method have the advantages that
1, the suitching type lifting stop device that the present invention provides, can decline and spentnuclear fuel lifting both of which at fresh fuel
Between carry out quickly and accurately switching.This device is arranged on the track component of new fuel elevator, mainly by stop block, turn
Axle, handle and installing plate composition.Installing plate and epimere parallel track, handle is installed in rotating shaft upper end, and stop block is arranged on rotating shaft
Bottom, handle can drive rotating shaft and stop block to rotate, thus realizes the current and conversion of two states of cut-off.
2, the suitching type lifting stop device that the present invention provides, stop device is installed in track side surfaces, can be realized fast-assembling fast
Tear open；Stop block can be operated by machine driving, switch the most fast and effectively；Each pattern has been equipped with mechanical type card
Spring and approach switch sensor duplicate protection, it is ensured that avoid spentnuclear fuel band to carry rising accident.
Accompanying drawing explanation
The schematic diagram of the suitching type lifting stop device that Fig. 1 provides for the present invention.
Fig. 2 a-2c is the handle under different mode and the stop block location drawing.
Fig. 3 and Fig. 4 is respectively detailed construction top view and side view.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, real with concrete below in conjunction with the accompanying drawings
The present invention is further detailed explanation to execute mode.
As it is shown in figure 1, the present invention apllied suitching type lifting stop device is arranged on the orbit portion of new fuel elevator
On part.As shown in Figure 3, Figure 4, device is mainly by stop block, rotating shaft, handle, mechanical type jump ring, proximity switch and peace for detailed construction
Dress plate composition.Installing plate and epimere parallel track, handle is installed in rotating shaft upper end, and stop block is arranged on rotating shaft bottom, handle
Rotating shaft and stop block can be driven to rotate, thus realize the current and conversion of two states of cut-off.
Meanwhile, to the switching between two positions, this suitching type lifting stop device is provided with the most dual guarantor
Protect.When handle position is placed in location A or B location, mechanical type jump ring can snap in respective slot, and the close of correspondence position is opened simultaneously
Close and also will send, to PLC, the signal that puts in place, in terms of mechanically and electrically two, ensure that handle " in place ".Due to from handle to stop block
By rotating shaft positive drive, then can be confirmed " in place " shape of stop block by the duplicate protection of mechanical type jump ring and proximity switch
State, avoids the possibility of maloperation from design end.
The suitching type lifting stop device of this kind of feature, can meet following four duty requirements:
One, fresh fuel band carries and declines operating mode:
Fresh fuel band carries decline operating mode and is used for dropping at the bottom of Spent Fuel Pool pond novel fuel assembly, then uses fuel handling machine
Connect long handle operation instrument to operate on it.The novel fuel assembly about more than 100 that PWR nuclear power plant head heap accepts, every time
The novel fuel assembly about 50 to eight ten that balance is reloaded, is both needed to decline operating mode by the fresh fuel of new fuel elevator and drops to
At the bottom of Spent Fuel Pool pond.Before entering this operating mode, the handle that suitching type lifts stop device is placed in location A, thus by turning
Stop block is placed in a position by axle, now.Stop block is placed in a position and guarantees that fuel-basket can have free passage in orbit.
Two, the unloaded operating mode that rises:
The unloaded operating mode immediately fresh fuel band that rises carries decline operating mode, for novel fuel assembly is being dropped to Spent Fuel Pool
After at the bottom of pond, empty fuel-basket is risen to upper operating position, again to load novel fuel assembly.Under this operating mode, suitching type lifts
The handle of stop device is placed in location A, and stop block is placed in a position, declines operating mode with fresh fuel identical.
Three, the unloaded operating mode that declines:
The unloaded operating mode that declines, for dropping at the bottom of Spent Fuel Pool pond by unloaded fuel-basket, loads the spentnuclear fuel of Awaiting Overhaul
Maintenance position is risen to again after assembly.It is some that PWR nuclear power plant balances the irradiated fuel assembly needing to overhaul after reloading every time, needs
The specific absolute altitude loading and rising to by the fuel-basket of new fuel elevator in weary pond carries out repair works under water.Entering this operating mode
Before, the handle that suitching type lifts stop device is still placed in location A, and stop block is also placed in a position, and unloaded fuel-basket can be smooth
Drop to position at the bottom of pond.
Four, spentnuclear fuel band carries and rises operating mode:
Spentnuclear fuel band carries and rises operating mode immediately unloaded decline operating mode, promotes after the irradiated fuel assembly loading Awaiting Overhaul again
To maintenance position, relate to shield water layer thickness nuclear safety and be correlated with operating mode.After zero load has declined, operator manually turn
Fixed handle, the handle that suitching type lifts stop device is placed in B location, thus stop block is placed in b position.Now, mechanical type
Card Spring-fastener lock is in B location respective slot, and proximity switch also triggers the signal of B location, it is ensured that occur without the situation of maloperation.Band
The fuel-basket carried rises to detection position, if overtravel, will be stoped by stop block and cannot continue to lift up, thus ensure that shielding
Water layer thickness.
Compared with prior art, the present embodiment has the advantages that
1, the suitching type lifting stop device that the present embodiment provides, can decline and spentnuclear fuel two kinds of moulds of lifting at fresh fuel
Carry out between formula quickly and accurately switching.This device is arranged on the track component of new fuel elevator, mainly by stop block, turn
Axle, handle and installing plate composition.Installing plate and epimere parallel track, handle is installed in rotating shaft upper end, and stop block is arranged on rotating shaft
Bottom, handle can drive rotating shaft and stop block to rotate, thus realizes the current and conversion of two states of cut-off.
2, the suitching type lifting stop device that the present embodiment provides, stop device is installed in track side surfaces, can be realized fast-assembling
Quick Release；Stop block can be operated by machine driving, switch the most fast and effectively；Each pattern has been equipped with mechanical type
Jump ring and approach switch sensor duplicate protection, it is ensured that avoid spentnuclear fuel band to carry rising accident.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.For system disclosed in embodiment
For, owing to corresponding to the method disclosed in Example, so describe is fairly simple, relevant part sees method part explanation
?.
Those skilled in the art can use different methods to realize described function to each specifically should being used for, but
It is this realization it is not considered that beyond the scope of this invention.
Obviously, those skilled in the art can carry out various change and the modification spirit without deviating from the present invention to invention
And scope.So, if the present invention these amendment and modification belong to the claims in the present invention and equivalent technologies thereof scope it
In, then the present invention is also intended to change and including modification include these.
Claims (3)
1. a suitching type lifting stop device, it is characterised in that including:
Handle, it is configured to perform common operating mode, namely when being positioned at location A during fresh fuel step-down operation, is performing weary combustion
Material maintenance operating mode, namely when spentnuclear fuel band carries lifting operations, it is positioned at B location；
Stop block, it is configured to perform common operating mode, namely during fresh fuel step-down operation, is in a position, is performing weary combustion
Material maintenance operating mode, namely when spentnuclear fuel band carries lifting operations, it is in b position.
Suitching type the most according to claim 1 lifting stop device, it is characterised in that also including fuel-basket, it is configured
To perform common operating mode, namely during fresh fuel step-down operation, can have free passage in orbit, perform spentnuclear fuel check man
Condition, namely when spentnuclear fuel band carries lifting operations, will be stoped by stop block if rising overtravel, in order to avoid continuing rising to cause shield water
Layer thickness is not enough.
Suitching type the most according to claim 2 lifting stop device, it is characterised in that during common operating mode operates, institute
State fuel-basket band carry drop to lower operating position after, by fuel handling machine operate long handle instrument taking-up fuel assembly after, fuel-basket
Zero load rises to operating position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889201.0A CN106297924A (en) | 2016-10-11 | 2016-10-11 | A kind of suitching type lifting stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889201.0A CN106297924A (en) | 2016-10-11 | 2016-10-11 | A kind of suitching type lifting stop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106297924A true CN106297924A (en) | 2017-01-04 |
Family
ID=57717595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610889201.0A Pending CN106297924A (en) | 2016-10-11 | 2016-10-11 | A kind of suitching type lifting stop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106297924A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910543A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of PWR nuclear power plant fuel assembly contained side type loads steering tool |
| CN115072329A (en) * | 2022-07-19 | 2022-09-20 | 中国核电工程有限公司 | Horizontal feeding device and spent fuel assembly processing system |
| CN115831411A (en) * | 2022-12-28 | 2023-03-21 | 中国原子能科学研究院 | Spent fuel assembly gripping device |
Citations (4)
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| US4822554A (en) * | 1986-10-08 | 1989-04-18 | Westinghouse Electric Corp. | Reconstitution and repair system for nuclear fuel rod assemblies |
| US5169593A (en) * | 1989-11-03 | 1992-12-08 | General Electric Company | Control rod drive handling tools for nuclear reactor |
| CN201378439Y (en) * | 2009-03-02 | 2010-01-06 | 中国核电工程有限公司 | New fuel lifter |
| CN205621325U (en) * | 2016-03-02 | 2016-10-05 | 国核电站运行服务技术有限公司 | Fresh fuel lift analog machine |
-
2016
- 2016-10-11 CN CN201610889201.0A patent/CN106297924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822554A (en) * | 1986-10-08 | 1989-04-18 | Westinghouse Electric Corp. | Reconstitution and repair system for nuclear fuel rod assemblies |
| US5169593A (en) * | 1989-11-03 | 1992-12-08 | General Electric Company | Control rod drive handling tools for nuclear reactor |
| CN201378439Y (en) * | 2009-03-02 | 2010-01-06 | 中国核电工程有限公司 | New fuel lifter |
| CN205621325U (en) * | 2016-03-02 | 2016-10-05 | 国核电站运行服务技术有限公司 | Fresh fuel lift analog machine |
Non-Patent Citations (1)
| Title |
|---|
| 李雷 等: "CAP1000新燃料升降机结构优化设计", 《起重运输机械》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910543A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of PWR nuclear power plant fuel assembly contained side type loads steering tool |
| CN115072329A (en) * | 2022-07-19 | 2022-09-20 | 中国核电工程有限公司 | Horizontal feeding device and spent fuel assembly processing system |
| CN115831411A (en) * | 2022-12-28 | 2023-03-21 | 中国原子能科学研究院 | Spent fuel assembly gripping device |
| CN115831411B (en) * | 2022-12-28 | 2024-05-31 | 中国原子能科学研究院 | Spent fuel assembly grabbing device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |