CN109556104A - Strip foreign matter shearing device and its application method between a kind of steam generator - Google Patents
Strip foreign matter shearing device and its application method between a kind of steam generator Download PDFInfo
- Publication number
- CN109556104A CN109556104A CN201811572242.2A CN201811572242A CN109556104A CN 109556104 A CN109556104 A CN 109556104A CN 201811572242 A CN201811572242 A CN 201811572242A CN 109556104 A CN109556104 A CN 109556104A
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- foreign matter
- shearing
- steam generator
- pulling block
- strip foreign
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- 238000010008 shearing Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 241000270295 Serpentes Species 0.000 claims description 20
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/002—Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Foreign matter clears up demand between the present invention is directed to the secondary side pipe of Steam Generators in NPP, it is proposed a kind of device and its application method for strip foreign matter shearing between steam generator, the device is pulled out guide device and is directed in narrow tube bank pipe by a kind of push away, fixed point shearing is carried out to strip foreign matter, guarantees foreign matter cleaning effect.The present apparatus has structure simple, and no electric elements are easy to maintain；Soft axle transmission aloows tool to pass in and out more narrow region；Big arm of force design, can cut thicker strip foreign matter；Shearing piece has basic grip function, after shearing, low-force square can be used to take out the foreign matter after cutting short.
Description
Technical field
The invention belongs to steam generator examining and repairing technical fields, and in particular to strip foreign matter is cut between a kind of steam generator
Cutting apparatus and its application method.
Background technique
Steam generator (SG) is one of nuclear power plant's key equipment, plays the isolation and heat exchange action of one, secondary circuit.
Most of SG of nuclear power station uses the structure type of the vertical Natural Circulation of built-in steam-water separator at present.It is normal in nuclear power unit
In operational process, alien material often is generated in SG and water supply system due to all kinds of process control issues.These alien materials
It, may be because being influenced by high temperature and high pressure environment, in the secondary side tube sheet surface SG and pipe while being discharged by drainage part
In beam gap, forms fixed foreign matter and lead to problems such as heat transfer pipe abrasion, thermal efficiency decline and water level unstable.
Although currently, since the significance and necessity of the cleaning of SG foreign matter have had some grabbing device investments actually to answer
With, but these devices still remain some problems, such as undercapacity in application process at the scene, it is difficult to cleaning is wrapped in heat transfer
On pipe or be stuck in tube bank between strip foreign matter；Or operator is needed to be operated manually by SG to by larger dose
The ionising radiation of amount.Accordingly, it is desirable to provide strip foreign matter shearing device and its making between a kind of convenient and practical steam generator
With method, fixed point shearing is carried out to strip foreign matter, guarantees foreign matter cleaning effect.
Summary of the invention
It is an object of the invention to be difficult to clear up for existing grabbing device to be wrapped on heat-transfer pipe or be stuck in tube bank
Between strip foreign matter the problem of, provide strip foreign matter shearing device and its application method between a kind of steam generator, realize
The purpose that winding or stuck profile bar shape foreign matter are sheared.
Technical scheme is as follows:
Strip foreign matter shearing device between a kind of steam generator, including rotation motor, driving snake, push away pulling block, transmission
Rope, scissors apparatus and upper lower platen；Rotation motor is connected with driving snake, and the other end of driving snake, which is connected with, pushes away pulling block, pushes away
Pulling block pushes away pulling block equipped with external screw thread between upper lower platen, be equipped between upper lower platen with the thread groove that pushes away pulling block and match,
So that pushing away pulling block under rotation motor and driving snake driving, can be moved forward and backward between upper lower platen；The scissors apparatus
End is connected to by transmission rope and is pushed away on pulling block, drives transmission rope to take between upper lower platen when pushing away pulling block and retreating, to make
Obtain scissors apparatus closure.
Further, the scissors apparatus includes pressure spring and the shearing piece up and down that crosses one another, and pressure spring setting is being cut up and down
It is sliced between tail end.
Further, the pressure spring is always compressive state, to maintain the sheared edge of shearing piece up and down to open.
Further, the piece of shearing up and down is provided with the sheared edge of arc, for preferably clamping item in shearing
Shape foreign matter.
Further, the maximum distance that the sheared edge of the piece of shearing up and down is opened is no more than 15mm.
Further, the front end of the piece of shearing up and down is set as slope.
Further, the end of the piece of shearing up and down is between upper lower platen.
The present invention also provides a kind of application methods of strip foreign matter shearing device between above-mentioned steam generator, successively wrap
Include following steps:
Step 1. rotation motor rotates in the forward direction, and by driving snake and pushes away pulling block, drives the movement of " pine " of transmission rope, matches
The compression of combined pressure spring pushes the arm of force, and the sheared edge for completing scissors apparatus is opened；
Strip foreign matter shearing device between this steam generator of step 2. advance, scissors apparatus " scoop up " strip foreign matter and will
It is put into sheared edge；
The rotation of step 3. rotation motor negative sense, by driving snake and pushes away pulling block, drives the movement of " drawing " of transmission rope, leads to
The connection arm of force is crossed, it will be so that scissors apparatus closure, completes shear action.
The beneficial effects of the present invention are:
Foreign matter clears up demand between the present invention is directed to the secondary side pipe of Steam Generators in NPP, proposes a kind of for steam generation
The device that strip foreign matter is sheared between device pipe, which is pulled out guide device and is directed in narrow tube bank pipe by a kind of push away, to strip
Foreign matter carries out fixed point shearing, guarantees foreign matter cleaning effect.The present apparatus has structure simple, and no electric elements are easy to maintain；Flexible axle
Transmission, aloows tool to pass in and out more narrow region；Big arm of force design, can cut thicker strip foreign matter；Shear piece
Have basic grip function, after shearing, low-force square can be used to take out the foreign matter after cutting short.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure: 1- rotation motor；2- driving snake；3- pushes away pulling block；4- transmission rope；5- pressure spring；6- or more shears piece；On 7-
Lower platen.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Strip foreign matter shearing device between a kind of steam generator is present embodiments provided, structure is as shown in Figure 1, main
Including rotation motor 1, driving snake 2, pulling block 3, transmission rope 4, scissors apparatus are pushed away, upper lower platen 7 forms.
Rotation motor 1 is connected with driving snake 2, and the other end of driving snake 2, which is connected with, pushes away pulling block 3, pushes away pulling block 3 positioned at upper
Between lower platen 7, push away pulling block 3 equipped with external screw thread, be equipped between upper lower platen 7 with the thread groove that pushes away pulling block 3 and match so that pushing away
Pulling block 3 can be moved forward and backward in the case where rotation motor 1 and driving snake 2 drive between upper lower platen 7.
The scissors apparatus includes pressure spring 5 and the piece of shearing up and down 6 that crosses one another, and the setting of pressure spring 5 is in shearing 6 tail of piece up and down
Between end, pressure spring 5 is always compressive state, to maintain the sheared edge of shearing piece 6 up and down to open.The end point of shearing piece 6 up and down
Not Tong Guo transmission rope 4 be connected to and push away on pulling block 3, drive transmission rope 4 to take between upper lower platen 7 when pushing away pulling block 3 and retreating, thus
So that shearing piece 6 is closed because of end stress up and down.
Shearing piece 6 is provided with the sheared edge of arc up and down, for preferably clamping strip foreign matter in shearing, has avoided
Sliding, influences shear effect；The front end of sheared edge is set as slope, forms a tip, strip foreign matter " scooping up " can be put
Enter sheared edge.
The end of shearing piece 6 is able to carry out limit and avoids freely shaking for scissors apparatus between upper lower platen 7 up and down
It is dynamic, enable scissors apparatus with strip foreign matter shearing device overall movement between the steam generator of the present embodiment.
In use process, rotation motor 1 drives driving snake 2 to be rotated, and pushes away pulling block 3 in pressing plate 7 by rotating to drive
Rotation in preset thread groove pushes away moving forward and backward for pulling block 3 to realize, cooperates the pressure spring 5 of precompressed, drive shear action
It realizes.
The present embodiment additionally provides the application method of strip foreign matter shearing device between above-mentioned steam generator, successively includes
Following steps:
Step 1. motor rotates in the forward direction, and by driving snake 2 and pushes away pulling block 3, drives the movement of " pine " of transmission rope 4, matches
The compression of combined pressure spring 5 pushes the arm of force, and the sheared edge for completing shearing piece 6 up and down is opened.
The step 2. advance present apparatus, the gentle slope structure as designed by shearing piece will be with the movement of a kind of " scooping up " by item
Shape foreign matter is put into sheared edge.
The rotation of step 3. motor negative sense, by driving snake 2 and pushes away pulling block 3, drives the movement of " drawing " of transmission rope 4, leads to
The connection arm of force is crossed, will be closed so that hingedly shearing piece, and complete shear action.In this movement, as shearing in designed by piece
Arc structure can ensure that hard strip foreign matter will not skid off in shear history, not only can guarantee and grabbed to obtain, but also can guarantee and grab firm.
Foreign matter clears up demand between the present embodiment is directed to the secondary side pipe of Steam Generators in NPP, proposes a kind of for steam hair
The device that strip foreign matter is sheared between raw device pipe, which is pulled out guide device and is directed in narrow tube bank pipe by a kind of push away, to item
Shape foreign matter carries out fixed point shearing, guarantees foreign matter cleaning effect.The present apparatus has structure simple, and no electric elements are easy to maintain；It is soft
Axis transmission, aloows tool to pass in and out more narrow region；Big arm of force design, can cut thicker strip foreign matter；Shearing
Piece has basic grip function, after shearing, low-force square can be used to take out the foreign matter after cutting short.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.It is if these modifications and variations are within the scope of the claims of the present invention and its equivalent technology, then of the invention
It is also intended to include these modifications and variations.
Claims (8)
1. strip foreign matter shearing device between a kind of steam generator, it is characterised in that: including rotation motor (1), driving snake
(2), pulling block (3), transmission rope (4), scissors apparatus and upper lower platen (7) are pushed away；
Rotation motor (1) is connected with driving snake (2), and the other end of driving snake (2), which is connected with, pushes away pulling block (3), pushes away pulling block (3)
Between upper lower platen (7), pulling block (3) are pushed away equipped with external screw thread, are equipped between upper lower platen (7) and are pushed away pulling block (3) and matched
Thread groove so that push away pulling block (3) rotation motor (1) and driving snake (2) driving under, can be between upper lower platen (7)
It moves forward and backward；
The scissors apparatus end is connected to by transmission rope (4) and is pushed away on pulling block (3), drives transmission when pushing away pulling block (3) and retreating
In (4) income of restricting between lower platen (7), so that scissors apparatus is closed.
2. strip foreign matter shearing device between a kind of steam generator as described in claim 1, it is characterised in that: the scissors
Device includes pressure spring (5) and the piece of shearing up and down (6) to cross one another, and pressure spring (5) setting is between shearing piece (6) tail end up and down.
3. strip foreign matter shearing device between a kind of steam generator as claimed in claim 2, it is characterised in that: the pressure spring
It (5) is always compressive state, to maintain the sheared edge of shearing piece (6) up and down to open.
4. strip foreign matter shearing device between a kind of steam generator as claimed in claim 2 or claim 3, it is characterised in that: described
Shearing piece (6) is provided with the sheared edge of arc up and down, for preferably clamping strip foreign matter in shearing.
5. strip foreign matter shearing device between a kind of steam generator as claimed in claim 2 or claim 3, it is characterised in that: described
The maximum distance that the sheared edge of shearing piece (6) is opened up and down is no more than 15mm.
6. strip foreign matter shearing device between a kind of steam generator as claimed in claim 2 or claim 3, it is characterised in that: described
The front end of shearing piece (6) is set as slope up and down.
7. strip foreign matter shearing device between a kind of steam generator as claimed in claim 2 or claim 3, it is characterised in that: described
The end of shearing piece (6) is between upper lower platen (7) up and down.
8. the application method of strip foreign matter shearing device, special between a kind of steam generator a kind of as claimed in claim 4
Sign is in turn include the following steps:
Step 1. rotation motor (1) rotates in the forward direction, and by driving snake (2) and pushes away pulling block (3), drives " pine " of transmission rope (4)
Movement, cooperation pressure spring (5) compression push the arm of force, complete scissors apparatus sheared edge open；
Strip foreign matter shearing device between this steam generator of step 2. advance, scissors apparatus " scoop up " strip foreign matter and are put
Enter in sheared edge；
The rotation of step 3. rotation motor (1) negative sense, by driving snake (2) and pushes away pulling block (3), drives " drawing " of transmission rope (4)
Movement, by connect the arm of force, will so that scissors apparatus be closed, complete shear action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572242.2A CN109556104A (en) | 2018-12-21 | 2018-12-21 | Strip foreign matter shearing device and its application method between a kind of steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572242.2A CN109556104A (en) | 2018-12-21 | 2018-12-21 | Strip foreign matter shearing device and its application method between a kind of steam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109556104A true CN109556104A (en) | 2019-04-02 |
Family
ID=65870713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811572242.2A Pending CN109556104A (en) | 2018-12-21 | 2018-12-21 | Strip foreign matter shearing device and its application method between a kind of steam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109556104A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121953A (en) * | 2020-09-23 | 2020-12-25 | 福建福清核电有限公司 | Device and method for cutting metal wire-shaped foreign matters among tubes of steam generator |
| CN115739871A (en) * | 2022-10-27 | 2023-03-07 | 中核武汉核电运行技术股份有限公司 | Hydraulic impact grinding device suitable for deposited sludge between heat transfer pipes |
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| CN2127326Y (en) * | 1992-04-25 | 1993-02-24 | 吴作礼 | Universal-coupling spring combined bit |
| CN2143148Y (en) * | 1992-09-23 | 1993-10-06 | 赵金山 | Pipe cleaner driven by manpower |
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| KR20130011697A (en) * | 2011-07-22 | 2013-01-30 | 김덕희 | A cleaning device of a sewage pipe |
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| CN106419992A (en) * | 2016-10-28 | 2017-02-22 | 上海威尔逊光电仪器有限公司 | Clamping device and operating method thereof |
| CN107928790A (en) * | 2017-12-01 | 2018-04-20 | 微创（上海）医疗机器人有限公司 | Snakelike operating theater instruments |
| CN209819516U (en) * | 2018-12-21 | 2019-12-20 | 核动力运行研究所 | Strip foreign matter shearing mechanism between steam generator intertube |
-
2018
- 2018-12-21 CN CN201811572242.2A patent/CN109556104A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2127326Y (en) * | 1992-04-25 | 1993-02-24 | 吴作礼 | Universal-coupling spring combined bit |
| CN2143148Y (en) * | 1992-09-23 | 1993-10-06 | 赵金山 | Pipe cleaner driven by manpower |
| CN2299671Y (en) * | 1997-05-21 | 1998-12-09 | 姜国旸 | Hand pipe cleaner |
| JP2011239975A (en) * | 2010-05-19 | 2011-12-01 | Adachi Kogyo:Kk | Forceps for endoscopic surgery |
| KR20130011697A (en) * | 2011-07-22 | 2013-01-30 | 김덕희 | A cleaning device of a sewage pipe |
| CN104907295A (en) * | 2015-04-24 | 2015-09-16 | 李劼 | Method for clamping and taking pipeline blockage |
| CN106419992A (en) * | 2016-10-28 | 2017-02-22 | 上海威尔逊光电仪器有限公司 | Clamping device and operating method thereof |
| CN107928790A (en) * | 2017-12-01 | 2018-04-20 | 微创（上海）医疗机器人有限公司 | Snakelike operating theater instruments |
| CN209819516U (en) * | 2018-12-21 | 2019-12-20 | 核动力运行研究所 | Strip foreign matter shearing mechanism between steam generator intertube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121953A (en) * | 2020-09-23 | 2020-12-25 | 福建福清核电有限公司 | Device and method for cutting metal wire-shaped foreign matters among tubes of steam generator |
| CN115739871A (en) * | 2022-10-27 | 2023-03-07 | 中核武汉核电运行技术股份有限公司 | Hydraulic impact grinding device suitable for deposited sludge between heat transfer pipes |
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Application publication date: 20190402 |