CN108747962A - A kind of steam generator closure plate removal tool and method - Google Patents
A kind of steam generator closure plate removal tool and method Download PDFInfo
- Publication number
- CN108747962A CN108747962A CN201810825850.3A CN201810825850A CN108747962A CN 108747962 A CN108747962 A CN 108747962A CN 201810825850 A CN201810825850 A CN 201810825850A CN 108747962 A CN108747962 A CN 108747962A
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- China
- Prior art keywords
- steam generator
- closure plate
- piston cylinder
- air source
- piston
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
-
- 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)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
A kind of steam generator closure plate removal tool and method, belong to nuclear power station steam generator service technique field.Tool includes air source, gas source switch, triple valve, two air source branch lines；The air source connects one end of triple valve through gas source switch, and the another both ends of triple valve are separately connected two air source branch lines；The air source branch line includes the source gas line of piston cylinder and connection triple valve and piston cylinder；The air source provides kinetic energy for the piston cylinder, and one end of the piston cylinder is equipped with to be installed on the locating piece of steam generator, and the other end of the piston cylinder is piston rod, to act on steam generator inner wall.Method removes closure plate including the use of above-mentioned tool.The present invention solves the problems, such as that steam generator closure plate removes difficulty, reduces the dose level of radiation of personnel, improves overhaul efficiency, fast implements the dismounting of steam generator closure plate, effectively reduce the maintenance duration of nuclear power plant's main line important process.
Description
Technical field
The present invention relates to nuclear power station steam generator service technique fields, more particularly to a kind of three generations's nuclear power steam that is used for send out
Raw device closure plate removal tool and method.
Background technology
Steam generator is one of nuclear power station important equipment, and function is by the heat transfer of primary Ioops coolant to two times
Road water supply, makes it be heated to form steam.During the overhaul of nuclear power station, steam is installed at the hot and cold side nozzle of steam generator
Generator closure plate, to ensure that steam generator is isolated with pressure vessel.After steam generator closure plate is installed, allow power station multinomial
Important turnover job can be carried out at the same time, such as dress reloads, steam generator EDDY CURRENT, to effectively reduce the overhaul life.
The time that steam generator closure plate is mounted on steam generator nozzle is fortnight or so, persistently bears the one of 10m
Hydrostatic circuit causes the rubber gasket of closure plate to be bonded with tube wall very secured.It is attached due to closure plate rubber gasket and tube wall
Put forth effort very greatly, to cause to remove job very difficult.Meanwhile the working environment that closure plate is removed is high radioactivity workspace, personnel
It requires control in 3 minutes into the internal working time, therefore several staff occurs and enter inside steam generator all
It can not complete closure plate dismounting.In order to remove closure plate, personnel enter inside using percussions tools such as sledge hammers, after constantly beaing closure plate
Just smoothly closure plate is removed from steam generator card slot, but the method is easy to damage steam generator and closure plate tool.Cause
This, in order to facilitate the dismounting of steam generator closure plate, there is an urgent need for develop a kind of to realize what steam generator closure plate was quickly removed
Specific purpose tool and method.
Invention content
The present invention is in view of the problems of the existing technology, it is proposed that it is stifled that one kind can remove steam generator quickly, safely
The steam generator closure plate removal tool and method of plate.
The technical scheme is that：
A kind of steam generator closure plate removal tool of the present invention, including air source, gas source switch, triple valve, two air source branched pipes
Road；The air source connects one end of triple valve through gas source switch, and the another both ends of triple valve are separately connected two air source branch lines；
The air source branch line includes the source gas line of piston cylinder and connection triple valve and piston cylinder；The air source is the piston cylinder
Kinetic energy is provided, one end of the piston cylinder is equipped with to be installed on the locating piece of steam generator, the other end of the piston cylinder
For piston rod, to act on steam generator inner wall.
Preferably, the piston cylinder includes piston shell and stretches in the piston rod of piston shell；The piston cylinder
One end connects triple valve at piston shell through source gas line.
Preferably, the locating piece is positioning pin, the location hole for being installed on closure plate.
Preferably, the positioning pin is cylindrical type positioning pin.
Preferably, the source gas line is flexible pipe line.
A kind of steam generator closure plate method for dismounting of the present invention, using above-mentioned steam generator closure plate removal tool；Method
Including：
The piston cylinder of each air source branch line is installed on by locating piece on upper steam generator, and passed through by step S01
Piston rod and steam generator inner wall contact action；Wherein, the piston cylinder installation direction of two air source branch lines is opposite；
Step S02, opens gas source switch, piston cylinder action, and piston rod drives closure plate rotation until disengaging steam generator；
Step S03 closes gas source switch, takes out steam generator closure plate removal tool and closure plate.
Preferably, the locating piece is positioning pin；Step S01 is specially：The piston cylinder of each air source branch line
It is installed to by positioning pin in the location hole of steam generator closure plate, and work is contacted with the card slot of steam generator by piston rod
With；The step S02 is specially：Gas source switch, piston cylinder action are opened, piston rod drives the rotation of closure plate ontology, closure plate seam allowance
When being rotated to opening by the card slot of steam generator, the closure plate disengages the steam generator card slot.
Preferably, the gas source switch is the switch with open and close function.
Preferably, method further includes, also need to check air source availability before step S01, when air source can be used, execute
Step S01 ~ S03.
The invention has the advantages that：
A kind of steam generator closure plate removal tool of the present invention and method solve steam generator closure plate and remove difficult ask
Topic reduces the dose level of radiation of personnel, improves overhaul efficiency, fast implements the dismounting of steam generator closure plate, effectively reduce
The maintenance duration of nuclear power plant's main line important process.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of steam generator closure plate removal tool of the present invention；
Fig. 2 is steam generator blind structure schematic diagram；
Fig. 3 is that a kind of steam generator closure plate removal tool of the present invention is installed on the mounting structure schematic diagram on steam generator；
Fig. 4 is a kind of flow chart of steam generator closure plate method for dismounting of the present invention.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
It is that closure plate and pipe friction are big that steam generator closure plate, which removes difficult key problem, can not rotate and cause, thus
The dismounting of closure plate is realized in selection using Pneumatic rotary tools.Such as Fig. 1-3, a kind of steam generator closure plate removal tool of the present invention
Including 3, two air source 1, gas source switch 2, triple valve air source branch lines.The air source 1 connects triple valve 3 through gas source switch 2
One end, the another both ends of triple valve 3 are separately connected two air source branch lines.Two air source branch lines are connected in parallel.It is described
Air source branch line includes the source gas line 10 of piston cylinder and connection triple valve 3 and piston cylinder.
The air source 1 is provided by compressed air system in factory or air compressor machine, and kinetic energy is provided for the piston cylinder.
The gas source switch 2 has opening and closes two functions, does not need adjustment effect, to ensure the reliable of switch
Property.
The source gas line 10 is flexible pipe line, is placed convenient for pipeline using its flexibility, and then convenient for pacifying dismantling device
Loaded on steam generator.Gas source line branches where the air source, gas source switch, the triple valve are at two-way parallel connection
Source gas line 10, source gas line are connected with the piston cylinder per road, ensure two piston cylinder energy synchronization actions in parallel.
The piston cylinder includes piston shell 5 and stretches in the piston rod 6 of piston shell 5.One end of the piston cylinder exists
Triple valve 3 is connected through source gas line 7 at piston shell 5, the other end of the piston cylinder is that piston rod acts on end.Wherein, in work
The piston shell 5 that plug cylinder connects one end of triple valve 3 is equipped with locating piece 4, and the locating piece can be cylindrical type positioning pin, use
In being installed in the location hole 9 of steam generator closure plate, the piston rod 6 of piston cylinder acts on steam generator inner wall, fully profit
Use steam generator inner wall as the fulcrum of reaction force, when steam generator closure plate removal tool is enterprising mounted in steam generator
When row operation, closure plate is realized rotation under the synchronous effect of two piston cylinders in parallel and is disengaged with steam generator card slot, to real
The smooth dismounting of existing closure plate.
Such as Fig. 3,4, the present invention additionally provides a kind of method for dismounting using above-mentioned steam generator closure plate removal tool.Method
Including：
The piston cylinder of each air source branch line is installed on by locating piece 4 on upper steam generator by step S01, and logical
Cross piston rod 6 and steam generator inner wall contact action；Wherein, the piston cylinder installation direction of two air source branch lines is opposite；
Step S02, opens gas source switch 2, piston cylinder action, and piston rod 6 drives closure plate rotation until disengaging steam generator；
Step S03 closes gas source switch 2, takes out steam generator closure plate removal tool and closure plate.
Specifically, before step S01, whether personnel inspection scene air source 1 can be used, if available, execution step S01 ~
S03.Then, personnel enter inside steam generator, confirm closure plate installation site.Then, specific purpose tool is installed to steam hair
On raw device, specifically, the piston cylinder of each air source branch line is installed to the positioning of steam generator closure plate by positioning pin 4
In hole 9,11 contact action of card slot of piston rod 6 and steam generator.The installation direction of wherein two actuating rods is on the contrary, to ensure
Closure plate can clockwise or counterclockwise, installation direction as shown in Figure 3.Later, gas source switch 2 is opened, piston cylinder action is living
Stopper rod 6 drives closure plate ontology 8 to rotate, when closure plate seam allowance 7 is rotated by the card slot 11 of steam generator to opening 12, the closure plate
Disengage the steam generator card slot 11.Finally, gas source switch 2 is closed, steam generator closure plate removal tool and closure plate are taken out,
The dismounting work of closure plate is rapidly completed.
It should be understood by those skilled in the art that the embodiment of the present invention shown in foregoing description and attached drawing is only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention completely effectively realizes.The function and structural principle of the present invention is in reality
It applies and shows and illustrate in example, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (9)
1. a kind of steam generator closure plate removal tool, which is characterized in that including air source, gas source switch, triple valve, two air sources
Branch line；The air source connects one end of triple valve through gas source switch, and the another both ends of triple valve are separately connected two air sources point
Bye-pass；The air source branch line includes the source gas line of piston cylinder and connection triple valve and piston cylinder；The air source is institute
It states piston cylinder and kinetic energy is provided, one end of the piston cylinder is equipped with to be installed on the locating piece of steam generator, the piston cylinder
The other end be piston rod, to act on steam generator inner wall.
2. a kind of steam generator closure plate removal tool according to claim 1, which is characterized in that the piston cylinder includes
It piston shell and stretches in the piston rod of piston shell；One end of the piston cylinder connects three at piston shell through source gas line
Port valve.
3. a kind of steam generator closure plate removal tool according to claim 1, which is characterized in that the locating piece is fixed
Position pin, the location hole for being installed on closure plate.
4. a kind of steam generator closure plate removal tool according to claim 3, which is characterized in that the positioning pin is
Cylindrical type positioning pin.
5. a kind of steam generator closure plate removal tool according to claim 1, which is characterized in that the source gas line is
Flexible pipe line.
6. a kind of steam generator closure plate method for dismounting, which is characterized in that using the steam described in the claims 1 or 2 or 5
Generator closure plate removal tool；Method includes：
The piston cylinder of each air source branch line is installed on by locating piece on upper steam generator, and passed through by step S01
Piston rod and steam generator inner wall contact action；Wherein, the piston cylinder installation direction of two air source branch lines is opposite；
Step S02, opens gas source switch, piston cylinder action, and piston rod drives closure plate rotation until disengaging steam generator；
Step S03 closes gas source switch, takes out steam generator closure plate removal tool and closure plate.
7. a kind of steam generator closure plate method for dismounting according to claim 6, which is characterized in that the locating piece is fixed
Position pin；Step S01 is specially：The piston cylinder of each air source branch line is installed to steam generator closure plate by positioning pin
In location hole, and pass through the card slot contact action of piston rod and steam generator；The step S02 is specially：Air source is opened to open
It closes, piston cylinder action, piston rod drives the rotation of closure plate ontology, closure plate seam allowance to be rotated to opening by the card slot of steam generator
When, the closure plate disengages the steam generator card slot.
8. a kind of steam generator closure plate method for dismounting according to claim 6, which is characterized in that the gas source switch is
Switch with open and close function.
9. a kind of steam generator closure plate method for dismounting according to claim 6, which is characterized in that method further includes,
It also needs to check air source availability before step S01, when air source can be used, executes step S01 ~ S03.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810825850.3A CN108747962B (en) | 2018-07-25 | 2018-07-25 | Tool and method for removing blocking plate of steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810825850.3A CN108747962B (en) | 2018-07-25 | 2018-07-25 | Tool and method for removing blocking plate of steam generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108747962A true CN108747962A (en) | 2018-11-06 |
| CN108747962B CN108747962B (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810825850.3A Active CN108747962B (en) | 2018-07-25 | 2018-07-25 | Tool and method for removing blocking plate of steam generator |
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| Country | Link |
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| CN (1) | CN108747962B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421333A (en) * | 2019-08-12 | 2019-11-08 | 中核检修有限公司深圳分公司 | Side stopboard changer device people and a side stopboard installation method |
| CN112692786A (en) * | 2020-12-30 | 2021-04-23 | 核动力运行研究所 | Primary side high water level plugging plate bolt dismounting device of nuclear power station steam generator |
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| CN102189059A (en) * | 2010-03-02 | 2011-09-21 | 方先其 | Piston coating device in automatic packaging bag production line |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112692786A (en) * | 2020-12-30 | 2021-04-23 | 核动力运行研究所 | Primary side high water level plugging plate bolt dismounting device of nuclear power station steam generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108747962B (en) | 2023-09-08 |
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