CN106910540A - A kind of PWR nuclear power plant fuel assembly plagiohedral loads steering tool - Google Patents
A kind of PWR nuclear power plant fuel assembly plagiohedral loads steering tool Download PDFInfo
- Publication number
- CN106910540A CN106910540A CN201710203231.6A CN201710203231A CN106910540A CN 106910540 A CN106910540 A CN 106910540A CN 201710203231 A CN201710203231 A CN 201710203231A CN 106910540 A CN106910540 A CN 106910540A
- Authority
- CN
- China
- Prior art keywords
- fuel assembly
- power plant
- nuclear power
- steel wire
- wire rope
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000007790 scraping Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
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
-
- 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
Landscapes
- 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 PWR nuclear power plant fuel assembly plagiohedral and loads steering tool, and it includes steel wire rope, is provided with alignment pin below the steel wire rope, and with the positioning pin connection；Guiding inclined-plane is provided between the alignment pin and the steel wire rope；The steel wire rope runs through the inclined-plane.The PWR nuclear power plant fuel assembly contained side type that the present invention is provided loads steering tool, for being suitably oriented to for the fuel assembly for declining is provided when PWR nuclear power plant core loading is carried out, its bottom nozzle is set correctly to coordinate with the fuel assembly alignment pin in reactor core support lower plate, smoothly to load reactor core specified location, while assembly surface scraping damage can be avoided.When using, this instrument is placed on the adjacent reactor core support lower plate position in fuel assembly position to be loaded, and occupy a fuel assembly loading space in advance, and decline guiding is carried out using unilateral guiding surface.
Description
Technical field
The present invention relates to spent nuclear fuel in nuclear power plant storage and nuclear power plant's operation and maintenance, and in particular to a kind of PWR nuclear power plant
Fuel assembly plagiohedral loads steering tool.
Background technology
The reactor core loading and unloading operation of PWR nuclear power plant, is carried out in reactor pressure vessel.Fuel assembly is in reactor core
Intensive loading, according to core loading fuel assembly centre-to-centre spacing and fuel assembly radial envelope size, fuel assembly loads gap
Nominal value only has 1mm or so, and considers PWR nuclear power plant fuel assembly length up to nearly five meters, uses rear irradiated fuel assembly
Certain malformation can be produced, this just loads to reactor fuel component and proposes at a relatively high operation requirement.
The content of the invention
The present invention in view of the shortcomings of the prior art, proposes that a kind of PWR nuclear power plant fuel assembly plagiohedral is loaded and is oriented to work
Tool.
The present invention provides a kind of PWR nuclear power plant fuel assembly plagiohedral and loads steering tool, and it includes steel wire rope, institute
State and alignment pin be provided with below steel wire rope, and with the positioning pin connection；It is provided between the alignment pin and the steel wire rope and is led
To with inclined-plane；The steel wire rope runs through the inclined-plane.
Preferably, the quantity of the steel wire rope is two.
Preferably, the quantity of the alignment pin is two, and is symmetrical arranged.
Preferably, during reactor cold-refueling, when carrying out core loading, the instrument is placed on conjunction by human users
Right position is put, and guiding is provided to fuel assembly using guiding surface when fuel assembly drops to close to core support plate position, is made
Its bottom nozzle correctly coordinates with the fuel assembly alignment pin in reactor core support lower plate, smoothly to load reactor core specified location, together
When can avoid assembly surface scraping damage.
Preferably, fuel assembly loads guider and is placed under the reactor core supporting adjacent with fuel assembly position to be loaded
On Board position.
Compared with prior art, the invention has the advantages that：
1st, the PWR nuclear power plant fuel assembly contained side type that the present invention is provided loads steering tool, for carrying out presurized water reactor
For the fuel assembly for declining provides suitable guiding during nuclear power plant's core loading, make the combustion in its bottom nozzle and reactor core support lower plate
Material component alignment pin correctly coordinates, smoothly to load reactor core specified location, while assembly surface scraping damage can be avoided.Use
When, this instrument is placed on the adjacent reactor core support lower plate position in fuel assembly position to be loaded, and occupy a fuel in advance
Component loading space, decline guiding is carried out using unilateral guiding surface.
2nd, the PWR nuclear power plant fuel assembly contained side type that the present invention is provided loads steering tool, and when using, instrument is by double
The drawing control of root steel wire rope；Tool bottom has two guide fingers, can be inserted into the respective pin hole of core bottom；Instrument side is to lead
To inclined-plane, the condition for contacting and being oriented to fuel assembly bottom nozzle can be met after surface treated.
Brief description of the drawings
Fig. 1 meets the structure of the PWR nuclear power plant fuel assembly contained side type loading steering tool of the preferred embodiment of the present invention
Form axonometric drawing
Fig. 2 meets the detailed construction three-view diagram of the preferred embodiment of the present invention
Fig. 3 meets the applying working condition schematic diagram of the preferred embodiment of the present invention
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real to enable the above objects, features and advantages of the present invention more obvious understandable
The present invention is further detailed explanation to apply mode.
As Figure 1-3, the present embodiment provides a kind of PWR nuclear power plant fuel assembly plagiohedral and loads steering tool, its
Including steel wire rope, be provided with alignment pin below the steel wire rope, and with the positioning pin connection；The alignment pin and the steel wire
Guiding inclined-plane is provided between rope；The steel wire rope runs through the inclined-plane.The quantity of the steel wire rope is two.The alignment pin
Quantity be two, and be symmetrical arranged.
During reactor cold-refueling, when carrying out core loading, this instrument is placed on correct position by human users,
There is provided guiding to fuel assembly using guiding surface when fuel assembly drops to close to core support plate position, make its bottom nozzle with
Fuel assembly alignment pin in reactor core support lower plate correctly coordinates, smoothly to load reactor core specified location, while group can be avoided
Part surface scraping damage.When using, fuel assembly loads guider and is placed on the heap adjacent with fuel assembly position to be loaded
On core support lower plate position.
Compared with prior art, the present embodiment has the advantages that：
1st, the PWR nuclear power plant fuel assembly contained side type that the present embodiment is provided loads steering tool, for carrying out pressure water
For the fuel assembly for declining provides suitable guiding during heap nuclear power plant core loading, make in its bottom nozzle and reactor core support lower plate
Fuel assembly alignment pin correctly coordinates, smoothly to load reactor core specified location, while assembly surface scraping damage can be avoided.Make
Used time, this instrument is placed on the adjacent reactor core support lower plate position in fuel assembly position to be loaded, and occupy a combustion in advance
Material component loading space, decline guiding is carried out using unilateral guiding surface.
2nd, the present embodiment provide PWR nuclear power plant fuel assembly contained side type load steering tool, when using, instrument by
The drawing control of double joint steel wire rope；Tool bottom has two guide fingers, can be inserted into the respective pin hole of core bottom；Instrument side is
Guiding surface, can meet the condition for contacting and being oriented to fuel assembly bottom nozzle after surface treated.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, due to corresponding to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Those skilled in the art can realize described function to each specific application using distinct methods, 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 changes and modification without deviating from spirit of the invention to invention
And scope.So, if these modifications of the invention and modification belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including including these changes and modification.
Claims (5)
1. a kind of PWR nuclear power plant fuel assembly plagiohedral loads steering tool, it is characterised in that including steel wire rope, the steel
Be provided with alignment pin below cord, and with the positioning pin connection；Guiding is provided between the alignment pin and the steel wire rope to use
Inclined-plane；The steel wire rope runs through the inclined-plane.
2. PWR nuclear power plant fuel assembly plagiohedral as claimed in claim 1 loads steering tool, it is characterised in that described
The quantity of steel wire rope is two.
3. PWR nuclear power plant fuel assembly plagiohedral as claimed in claim 1 loads steering tool, it is characterised in that described
The quantity of alignment pin is two, and is symmetrical arranged.
4. PWR nuclear power plant fuel assembly plagiohedral as claimed in claim 1 loads steering tool, it is characterised in that anti-
During answering heap cold-refueling, when carrying out core loading, the instrument is placed on correct position by human users, under fuel assembly
Drop to close to during core support plate position and provide guiding to fuel assembly using guiding surface, under its bottom nozzle is supported with reactor core
Fuel assembly alignment pin on plate correctly coordinates, smoothly to load reactor core specified location, while assembly surface can be avoided to scrape
Damage.
5. PWR nuclear power plant fuel assembly plagiohedral as claimed in claim 1 loads steering tool, it is characterised in that fuel
Component loads guider and is placed on the reactor core support lower plate position adjacent with fuel assembly position to be loaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203231.6A CN106910540A (en) | 2017-03-30 | 2017-03-30 | A kind of PWR nuclear power plant fuel assembly plagiohedral loads steering tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203231.6A CN106910540A (en) | 2017-03-30 | 2017-03-30 | A kind of PWR nuclear power plant fuel assembly plagiohedral loads steering tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106910540A true CN106910540A (en) | 2017-06-30 |
Family
ID=59194968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710203231.6A Pending CN106910540A (en) | 2017-03-30 | 2017-03-30 | A kind of PWR nuclear power plant fuel assembly plagiohedral loads steering tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106910540A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1395621A (en) * | 1964-01-03 | 1965-04-16 | Electricite De France | Improvements in handling equipment for nuclear fuel elements of an atomic reactor |
| CN1427995A (en) * | 2000-05-04 | 2003-07-02 | 法玛通Anp公司 | Method and device for loading core of nuclear reactor with fuel assembles |
| CN102097140A (en) * | 2009-12-11 | 2011-06-15 | 上海核工程研究设计院 | Underwater fuel conveying trolley and tipping-over device for pressurized water reactor |
| CN202282168U (en) * | 2011-10-13 | 2012-06-20 | 核电秦山联营有限公司 | Auxiliary single-side little-boot-upper charging device for nuclear-fuel assembly |
-
2017
- 2017-03-30 CN CN201710203231.6A patent/CN106910540A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1395621A (en) * | 1964-01-03 | 1965-04-16 | Electricite De France | Improvements in handling equipment for nuclear fuel elements of an atomic reactor |
| CN1427995A (en) * | 2000-05-04 | 2003-07-02 | 法玛通Anp公司 | Method and device for loading core of nuclear reactor with fuel assembles |
| CN102097140A (en) * | 2009-12-11 | 2011-06-15 | 上海核工程研究设计院 | Underwater fuel conveying trolley and tipping-over device for pressurized water reactor |
| CN202282168U (en) * | 2011-10-13 | 2012-06-20 | 核电秦山联营有限公司 | Auxiliary single-side little-boot-upper charging device for nuclear-fuel assembly |
Non-Patent Citations (1)
| Title |
|---|
| 马文君等: "压水堆核电厂堆芯换料模式研究及管理系统实现", 《中国核电》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170630 |