CN108729600A - A kind of personnel's passage trestle and its installation method suitable for reactor - Google Patents
A kind of personnel's passage trestle and its installation method suitable for reactor Download PDFInfo
- Publication number
- CN108729600A CN108729600A CN201711023972.2A CN201711023972A CN108729600A CN 108729600 A CN108729600 A CN 108729600A CN 201711023972 A CN201711023972 A CN 201711023972A CN 108729600 A CN108729600 A CN 108729600A
- Authority
- CN
- China
- Prior art keywords
- trestle
- reactor
- pedal
- platform
- tube assembly
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
-
- 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
- G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
- G21C19/207—Assembling, maintenance or repair of reactor components
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to nuclear power station reactor core neutron detector maintenance technology fields, and in particular to a kind of personnel's passage trestle and its installation method suitable for reactor.In the present invention, several trestle pedals are misplaced from top to bottom, and step structure is formed between reactor platform and protection tube assembly shipping platform；The trestle pedal of extreme higher position is equipped with trestle fixation holes, and fixation kit mutually fixes the trestle pedal of extreme higher position with reactor platform across trestle fixation holes；The trestle pedal lower end of extreme lower position is equipped with trestle cat ladder section, which is in frame structure, is supported in above protection tube assembly shipping platform；On the trestle pedal of correspondence neutron temperature Measurement channel position to be replaced, it is equipped with several neutron temperature Measurement channels and reserving hole is installed.The present invention can enhance safety and the convenience of the dismounting work of neutron temperature Measurement channel, can be widely applied to the work of the units refueling outage such as VVER.
Description
Technical field
The invention belongs to nuclear power station reactor core neutron detector maintenance technology fields, and in particular to one kind is suitable for anti-
Answer the personnel's passage trestle and its installation method of heap.
Background technology
Field gulf nuclear power station neutron temperature Measurement channel has 54, is installed in the preformed hole of fuel assembly, for completing prison
It is close to survey tasks, the overall length such as netron-flux density, coolant entrance and pressure head cover temperature of lower, refrigerant level in reactor
13 meters, it is immersed in nearly 12 meters of reactor coolant part.
Due to the needs that reload during overhaul, neutron temperature Measurement channel need to be extracted, it is flat to be fixed on protection tube assembly transport
On platform, until after reloading, then from protecting tube assembly shipping platform last time to be filled in fuel assembly, this neutron temperature measures logical
Road dismounts the critical path that work is the nuclear power station overhaul of field gulf and works.
Currently, personnel need to dismount neutron temperature measuring channel and fix behaviour on protection tube assembly shipping platform
Make, as shown in Figure 1, since there is certain distance, two platforms to have for protection tube assembly shipping platform and 34 meters of reactor platform
Nearly two meters of drop, personnel carry out operation to be gone on protection tube assembly shipping platform from reactor platform, can only be by outstanding
Arm lifts up into the transport of administrative staff and related Work tool, and such means of transportation has the disadvantages that：
1, used hanging basket load and capacity are limited, personnel and related Work tool can only transported batchwise, reduce work effect
Rate；
2, personnel are hoisted to shipping platform by hanging basket, completely hanging in transportational process, with more than ten rice of ground drop, have
The risk that personnel fall；
3, Work tool used in operation is mostly compared with small articles, and quantity is more, subtle if falling, and is made to reactor core
At foreign matter risk.
Based on the above circumstances, there is an urgent need for personnel and Work tool fortune that the improvement neutron temperature Measurement channel that takes measures dismounts work
Defeated mode increases the convenience of this work.
Invention content
The technical problem to be solved in the invention is：It provides a kind of suitable for personnel's passage trestle of reactor and its installation
Method improves efficiency and the safety of the round-trip reactor platform of staff and protection tube assembly shipping platform.
It is described that technical scheme is as follows：
A kind of personnel's passage trestle suitable for reactor, including trestle fixation holes, trestle pedal, neutron temperature measure
Channel is installed by reserving hole and trestle cat ladder section：Several trestle pedals are misplaced from top to bottom, in reactor platform and guarantor
Step structure is formed between pillar component shipping platform；Trestle pedal be in contact with reactor platform, extreme higher position is set
There are trestle fixation holes, fixation kit to pass through trestle fixation holes that the trestle pedal of extreme higher position is mutually solid with reactor platform
It is fixed；Trestle pedal lower end be close with protection tube assembly shipping platform, extreme lower position is equipped with trestle cat ladder section, and the trestle is perpendicular
Bench is in frame structure, is supported in above protection tube assembly shipping platform；In correspondence neutron temperature Measurement channel position to be replaced
On the trestle pedal set, it is equipped with several neutron temperature Measurement channels and reserving hole is installed.
Preferably：It is equipped with handrail in the step structure both sides that several trestle pedals are formed.
Preferably：The fixation kit is bolt.
A kind of installation method of personnel's passage trestle suitable for reactor, includes the following steps：By trestle cat ladder section branch
It supports above protection tube assembly shipping platform；By the trestle treadle supporting of extreme higher position above reactor platform, fixation is utilized
Component passes through the trestle fixation holes of the trestle pedal of extreme higher position, and the trestle pedal of extreme higher position is mutually solid with reactor platform
It is fixed；Handrail is fastened to fixed position by lifting device, keeps trestle firm.
Beneficial effects of the present invention are：
A kind of personnel's passage trestle and its installation method suitable for reactor of the present invention, can be firmly secured at anti-
It answers on heap platform and protection tube assembly shipping platform, between facilitating round-trip two platforms of staff, enhancing neutron temperature measures
Channel dismounts safety and the convenience of work, can be widely applied to the work of the units refueling outage such as VVER.
Description of the drawings
Fig. 1 is that neutron temperature Measurement channel dismounts work-yard schematic diagram；
Fig. 2 is a kind of personnel's passage trestle scheme of installation suitable for reactor of the present invention；
Fig. 3 is a kind of personnel's passage trestle work structure schematic diagram suitable for reactor of the present invention；
Fig. 4 is a kind of personnel's passage trestle front view suitable for reactor of the present invention；
Fig. 5 is a kind of personnel's passage trestle vertical view suitable for reactor of the present invention.
In figure, 1- trestle fixation holes；2- trestle pedals；3- handrails；4- neutron temperature Measurement channels install reserving hole；
5- trestle cat ladder sections；6- protects tube assembly shipping platform；7- reactor platforms；8- neutron temperature Measurement channels.
Specific implementation mode
With reference to the accompanying drawings and examples trestle progress is passed through to a kind of personnel suitable for reactor of the present invention in detail
Explanation.
As shown in Figures 2 to 5, a kind of personnel's passage trestle suitable for reactor of the invention, including trestle mounting hole
Hole 1, trestle pedal 2, neutron temperature Measurement channel installation reserving hole 4 and trestle cat ladder section 5.
As shown in Fig. 2, several trestle pedals 2 are misplaced from top to bottom, in higher reactor platform 7 and lower
Step structure is formed between protection tube assembly shipping platform 6；As shown in figure 3, be in contact with reactor platform 7, highest order
The trestle pedal 2 set is equipped with trestle fixation holes 1, and the fixation kits such as bolt pass through trestle fixation holes 1 by the stack of extreme higher position
Bridge pedal 2 is fixed with 7 phase of reactor platform；As shown in figure 3, be close with protection tube assembly shipping platform 6, extreme lower position
2 lower end of trestle pedal is equipped with trestle cat ladder section 5, which is supported in protection pipe group in frame structures such as " day " fonts
6 top of part shipping platform；On the trestle pedal 2 of correspondence 8 position of neutron temperature Measurement channel to be replaced, it is equipped in several
Sub- temperature measuring channel installs reserving hole 4, and the neutron temperature for such as needing to change 4 lower part of neutron temperature Measurement channel reserving hole is surveyed
Channel 8 is measured, can penetrate to be pierced by by the hole and be replaced, be effectively prevented the bending of neutron temperature Measurement channel 8, while
Take into account personnel's passage.
Preferably, a kind of personnel's passage trestle suitable for reactor of the invention, in several trestles
The step structure both sides that pedal is formed are additionally provided with handrail 3.
A kind of personnel's passage trestle suitable for reactor of the present invention, installation method are as described below：By trestle cat ladder section 5
It is supported in 6 top of protection tube assembly shipping platform；The trestle pedal 2 of extreme higher position is supported in 7 top of reactor platform, is utilized
The fixation kits such as bolt pass through extreme higher position trestle pedal 2 trestle fixation holes 1, by the trestle pedal 2 of extreme higher position with
7 phase of reactor platform is fixed；Handrail 3 is fastened to fixed position by lifting devices such as ropes, keeps trestle firm, at this time
Staff can be travelled to and fro between by trestle and carry out operation between protection tube assembly shipping platform 6 and reactor platform 7.
Claims (4)
- The trestle 1. a kind of personnel suitable for reactor pass through, including trestle fixation holes (1), trestle pedal (2), neutron temperature Measurement channel installs reserving hole (4) and trestle cat ladder section (5), it is characterised in that：Several trestle pedals (2) are wrong from top to bottom Arrangement is fallen, step structure is formed between reactor platform (7) and protection tube assembly shipping platform (6)；With reactor platform (7) trestle pedal (2) be in contact, extreme higher position is equipped with trestle fixation holes (1), and fixation kit passes through trestle fixation holes (1) the trestle pedal (2) of extreme higher position is mutually fixed with reactor platform (7)；It is close with protection tube assembly shipping platform (6) , trestle pedal (2) lower end of extreme lower position be equipped with trestle cat ladder section (5), which is in frame structure, support Above protection tube assembly shipping platform (6)；Trestle pedal in correspondence neutron temperature Measurement channel (8) position to be replaced (2) on, it is equipped with several neutron temperature Measurement channels installation reserving hole (4).
- The trestle 2. a kind of personnel suitable for reactor according to claim 1 pass through, it is characterised in that：In several stacks The step structure both sides that bridge pedal is formed are equipped with handrail (3).
- The trestle 3. a kind of personnel suitable for reactor according to claim 1 or 2 pass through, it is characterised in that：It is described solid It is bolt to determine component.
- The installation method of trestle 4. a kind of personnel suitable for reactor according to claim 2 pass through, it is characterised in that： Include the following steps：Trestle cat ladder section (5) is supported in above protection tube assembly shipping platform (6)；By the trestle of extreme higher position Pedal (2) is supported in above reactor platform (7), passes through the trestle of the trestle pedal (2) of extreme higher position solid using fixation kit Determine hole (1), the trestle pedal (2) of extreme higher position is mutually fixed with reactor platform (7)；By lifting device by handrail (3) It is fastened to fixed position, keeps trestle firm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023972.2A CN108729600A (en) | 2017-10-27 | 2017-10-27 | A kind of personnel's passage trestle and its installation method suitable for reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023972.2A CN108729600A (en) | 2017-10-27 | 2017-10-27 | A kind of personnel's passage trestle and its installation method suitable for reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108729600A true CN108729600A (en) | 2018-11-02 |
Family
ID=63940224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711023972.2A Pending CN108729600A (en) | 2017-10-27 | 2017-10-27 | A kind of personnel's passage trestle and its installation method suitable for reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108729600A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2106275A1 (en) * | 1992-10-08 | 1994-04-09 | Roy B. Bendickson | Trestle ladder |
| CN101238268A (en) * | 2005-08-09 | 2008-08-06 | 小野辰雄 | Ramp apparatus |
| CN103615188A (en) * | 2013-11-27 | 2014-03-05 | 中国航空工业集团公司西安飞机设计研究所 | Multi-purpose working ladder |
| CN203669721U (en) * | 2013-11-25 | 2014-06-25 | 辽宁石油机械制造有限公司 | Hanging type inclined ladder |
| CN203756018U (en) * | 2013-12-24 | 2014-08-06 | 海城市石油机械制造有限公司 | Folding crawling ladder |
| CN204402337U (en) * | 2014-12-23 | 2015-06-17 | 广西华超电气有限公司 | A kind of movable ladder frame |
| CN105317179A (en) * | 2015-11-24 | 2016-02-10 | 苏州金螳螂建筑装饰股份有限公司 | Cantilever type unsupported glass stair installation structure and installation method |
| CN207526021U (en) * | 2017-10-27 | 2018-06-22 | 江苏核电有限公司 | A kind of personnel suitable for reactor pass through trestle |
-
2017
- 2017-10-27 CN CN201711023972.2A patent/CN108729600A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2106275A1 (en) * | 1992-10-08 | 1994-04-09 | Roy B. Bendickson | Trestle ladder |
| CN101238268A (en) * | 2005-08-09 | 2008-08-06 | 小野辰雄 | Ramp apparatus |
| CN203669721U (en) * | 2013-11-25 | 2014-06-25 | 辽宁石油机械制造有限公司 | Hanging type inclined ladder |
| CN103615188A (en) * | 2013-11-27 | 2014-03-05 | 中国航空工业集团公司西安飞机设计研究所 | Multi-purpose working ladder |
| CN203756018U (en) * | 2013-12-24 | 2014-08-06 | 海城市石油机械制造有限公司 | Folding crawling ladder |
| CN204402337U (en) * | 2014-12-23 | 2015-06-17 | 广西华超电气有限公司 | A kind of movable ladder frame |
| CN105317179A (en) * | 2015-11-24 | 2016-02-10 | 苏州金螳螂建筑装饰股份有限公司 | Cantilever type unsupported glass stair installation structure and installation method |
| CN207526021U (en) * | 2017-10-27 | 2018-06-22 | 江苏核电有限公司 | A kind of personnel suitable for reactor pass through trestle |
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