CN109540908A - Steam generator the first support plate video check steering tool and video check method - Google Patents
Steam generator the first support plate video check steering tool and video check method Download PDFInfo
- Publication number
- CN109540908A CN109540908A CN201811574034.6A CN201811574034A CN109540908A CN 109540908 A CN109540908 A CN 109540908A CN 201811574034 A CN201811574034 A CN 201811574034A CN 109540908 A CN109540908 A CN 109540908A
- Authority
- CN
- China
- Prior art keywords
- support plate
- steam generator
- supporting guide
- steering tool
- video check
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 5
- 230000000116 mitigating effect Effects 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims 1
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- 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
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/38—Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
Landscapes
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to Steam Generators in NPP service technique fields, more particularly to steam generator the first support plate video check steering tool and video check method, for Steam Generators in NPP the first support plate video check demand, it is proposed a kind of compact dimensions, sound construction, steam generator the first support plate video check steering tool convenient for operation, purpose is to fill up the blind area of existing steam generator secondary side inspection, the cleannes video check of realization the first support plate of steam generator.It is characterized in that, it includes supporting guide and guiding trestle；The both ends of supporting guide are separately fixed on steam generator hand hole and the first support plate, for providing support and sliding rail to guiding trestle；Guiding trestle is mounted on supporting guide, is slidably connected with supporting guide, and the first support plate discharge orifice is stretched out in guiding trestle upper end, for carrying out video check to region steam generator inner tube.
Description
Technical field
The invention belongs to Steam Generators in NPP service technique fields, and in particular to the first support plate of steam generator view
Frequency checks steering tool and video check method.
Background technique
In pressurized-water reactor nuclear power plant operational process, in the surface smut in steam generator secondary side restricted in flow region and gap
Objectionable impurities ion (such as Cl?, SO42-, Ca2+, Mg2+, Al3+Deng) it will appear localized concentrations because of the evaporation of water.Wherein most
It can participate in forming body refuse stack layer in steam generator secondary side inner horizontal and the vertical surface of solids, such as secondary side tube sheet table
Face, assignment of traffic plate surface, support plate surface, and heat transfer tube outer surface equipotential are set.Support plate subsidence settling has blocking plum blossom
The danger in hole, and then cause unstable even nuclear power station downrating etc. the consequences of nuclear power station heap power, it is therefore desirable to it is cleaned
Degree situation is inspected periodically, to formulate targeted cleaning program.
Currently, domestic each nuclear power unit can cleannes shape to steam generator secondary side tube sheet during refueling outage
Condition carries out video check.But it is limited by steam generator secondary side structure, existing video inspection device is extremely difficult to support
Plate region.
Summary of the invention
The present invention is directed to the first support plate of Steam Generators in NPP video check demand, proposes a kind of compact dimensions, knot
Structure securely, convenient for steam generator the first support plate video check steering tool of operation, it is therefore intended that fill up existing steam hair
The blind area of raw device secondary side inspection, realizes the cleannes video check of the first support plate of steam generator.
The present invention is implemented as follows:
A kind of the first support plate of steam generator video check steering tool, including supporting guide and guiding trestle；Support
The both ends of guide rail are separately fixed on steam generator hand hole and the first support plate, for providing support and sliding to guiding trestle
Track；Guiding trestle is mounted on supporting guide, is slidably connected with supporting guide, and the first support plate stream is stretched out in guiding trestle upper end
Water hole, for carrying out video check to region steam generator inner tube.
Supporting guide generally L shape as described above, left part is horizontal, and right part stretches out upwards, and both ends are respectively fixedly connected with
There are the parts such as positioning card and fixed ear；Positioning card is stuck in the first support plate after passing through the first support plate discharge orifice, is formed this and is led
To the distal affixation points of tool；Fixed ear is bolted on the flange bolt hole of steam generator hand hole, is formed this and is led
To the proximal end fixed point of tool；Supporting guide is for fixing and supporting the steering tool.
It is provided with sliding rail along its length in the upper surface of the supporting guide, it is real for being matched with guiding trestle
Existing sliding of the guiding trestle relative to supporting guide.
Supporting guide as described above is integrally made of stainless steel.
The hollow out of many places circle or other shapes is set on the supporting guide, for mitigating the weight of steering tool
Amount.
The shape of the generally hollow L shape structure of guiding trestle as described above, shape and supporting guide matches；It leads
It is guiding elbow to the front end of bracket, the first support plate discharge orifice is stretched out in guiding elbow upper end, and lower end passes through rotary joint and leads
It is connected to the main body of bracket；Guiding trestle is for realizing the guide function to video probe.
There are two groups of sliding blocks on the downside of the guiding trestle, sliding block is coupled with the sliding rail of supporting guide upper surface, makes to lead
It can be free to slide with respect to supporting guide to bracket.
A handheld box is configured on the outside of steam generator, handheld box is connect with rotary joint by two wirerope, is led to
The operation of handheld box is crossed, realizes the control turned to guiding elbow.
Guiding trestle 7 as described above is whole to be made of stainless steel.
Supporting guide and guiding trestle as described above are multi-segment structure, pass through bolt or pin between each segment structure
Coupling.
The beneficial effects of the present invention are:
1. it is compact-sized, convenient for operation, it can be achieved that the video check of the first support plate of steam generator；
2. can realize the area Guan Jian of the first support plate cold side and hot side respectively by the rotation angle of control guiding elbow
Domain video check；
3. may be implemented by guiding trestle sliding opposite from supporting guide between the video check in region different pipes；
4. sound construction, not easy to wear.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of steam generator the first support plate video check steering tool of the invention；
Wherein: 1. positioning cards, 2. rotary joints, 3. guiding elbows, 4. video probes, 5. sliding blocks, 6. supporting guides, 7. lead
To bracket, 8. fixed ears, 10. steam generators, 11. steam generator hand holes, 12. inner sleeves, 13. first support plates, 14.
One support plate discharge orifice, 15. center pull rods, 16. flow distribution baffles.
Fig. 2 to Fig. 5 is the work of steam generator the first support plate video check steering tool of the invention of the invention
Schematic diagram；
Wherein: Fig. 2 is the working state figure that steering tool protrudes into steam generator；Fig. 3 is that steering tool is fixed on branch
Working state figure on fagging；Fig. 4 is that mobile guide bracket carries out the working state figure checked between pipe；Fig. 5 be steering tool extremely
The working state figure that another discharge orifice checks.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of the first support plate of steam generator video check steering tool, including supporting guide 6 and lead
To bracket 7.The both ends of supporting guide 6 are separately fixed on steam generator hand hole 11 and the first support plate 13, for guiding
Bracket 7 provides support and sliding rail.Guiding trestle 7 is mounted on supporting guide 6, is slidably connected with supporting guide 6, guiding branch
The first support plate discharge orifice 14 is stretched out in 7 upper end of frame, for carrying out video check to region 10 inner tube of steam generator.
The generally L shape of supporting guide 6, left part is horizontal, and right part stretches out upwards, and both ends have been respectively fixedly connected with fixed
The parts such as position card 1 and fixed ear 8.Positioning card 1 is stuck in the first support plate 13 after passing through the first support plate discharge orifice 14, and being formed should
The distal affixation points of steering tool.Fixed ear 8 is bolted on the flange bolt hole of steam generator hand hole 11, is formed
The proximal end fixed point of the steering tool.Supporting guide 6 is for fixing and supporting the steering tool.
It is provided with sliding rail along its length in the upper surface of the supporting guide 6, for being matched with guiding trestle 7,
Realize sliding of the guiding trestle 7 relative to supporting guide 6.
The supporting guide 6 is whole to be made of stainless steel.
The hollow out of many places circle or other shapes is set on the supporting guide 6, for mitigating the weight of steering tool
Amount.
The generally hollow L shape structure of the guiding trestle 7, shape and the shape of supporting guide 6 match.Guiding
The front end of bracket 7 is guiding elbow 3, and the first support plate discharge orifice 14 is stretched out in guiding 3 upper end of elbow, and lower end passes through rotary joint 2
It is connect with the main body of guiding trestle 7.Guiding trestle 7 is for realizing the guide function to video probe.
There are two groups of sliding blocks 5 in the downside of the guiding trestle 7, sliding block 5 is coupled with the sliding rail of 6 upper surface of supporting guide,
Keep guiding trestle 7 free to slide with respect to supporting guide 6.
A handheld box is configured on the outside of steam generator 10, handheld box is connect with rotary joint 2 by two wirerope,
By the operation of handheld box, the control turned to guiding elbow 3 is realized.
The guiding trestle 7 is whole to be made of stainless steel.
Since nearby space is limited for steam generator hand hole 11, the supporting guide 6 and guiding trestle 7 is multisection type
Structure is coupled by bolt or pin between each segment structure.
Application method of the invention is as follows:
Step 1: being sent into 16 top hand hole of flow distribution baffle together with the front of guiding trestle 7 for supporting guide 6 obliquely,
Be sent on one side, on one side upwards lift, until front end enter the first support plate discharge orifice 14, as shown in Figure 2.
Step 2: supporting guide positioning card 1 is stuck in the first support plate 13, and fixed ear 8 is fixed on steam generator
On 11 flange of hand hole, as shown in figure 3, at this point, 6 position of supporting guide is fixed.
Step 3: operation handheld box control guiding elbow 3 is rotated by 90 °, the side that guiding 3 front end of elbow checks needed for being directed toward
Video probe 4 is sent by direction between heat-transfer pipe pipe along guiding trestle 7, detects position until arriving at.Along 6 horizontal direction of supporting guide
Outer pulling guiding trestle 7 completes the video check in region between one side pipe of discharge orifice one by one.
Step 4: operation handheld box control guiding elbow 3 rotates 180 °, and guiding 3 front end of elbow checks another needed for being directed toward
Direction between the heat-transfer pipe pipe of side pushes forward guiding trestle 7 along supporting guide 6, completes the video check in region between another side pipe,
As shown in Fig. 4.
Step 5: fixed ear 8 is unclamped, entire steering tool is pulled out.Positioning card 1 is from the first support plate 13 at this time
It is detached from.The front end for controlling steering tool is slowly sagging, detaches from the first support plate discharge orifice 14.
Step 6: it moves horizontally entire steering tool and reaches another 14 lower section of the first support plate discharge orifice, work will be oriented to
Lift enters the first support plate discharge orifice 14, fixed supporting guide 6 on the front end of tool.
Step 7: repeating step 3 and step 4, completes to check at this, as shown in Fig. 5.
Step 8:, will be entire after three 14 video checks of the first support plate discharge orifice for completing 10 side of steam generator
Steering tool is transferred on opposite side steam generator hand hole 11, is repeated step 1 to step 7, is completed the first support plate of opposite side 13
Video check.
It is explained in detail above in conjunction with implementation method of the embodiment to invention, but invention is not limited to above-mentioned implementation
Example, within the knowledge of a person skilled in the art, can also make without departing from the purpose of the present invention
Various change out.The content that description in the present invention is not described in detail can use the prior art.
Claims (10)
1. a kind of the first support plate of steam generator video check steering tool, it is characterised in that: it include supporting guide (6) and
Guiding trestle (7)；The both ends of supporting guide (6) are separately fixed on steam generator hand hole (11) and the first support plate (13),
For providing support and sliding rail to guiding trestle (7)；Guiding trestle (7) is mounted on supporting guide (6), with supporting guide
(6) it is slidably connected, the first support plate discharge orifice (14) is stretched out in guiding trestle (7) upper end, for internal to steam generator (10)
Region carries out video check between pipe.
2. the first support plate of steam generator video check steering tool according to claim 1, it is characterised in that: described
Supporting guide (6) generally L shape, left part is horizontal, and right part stretches out upwards, both ends be respectively fixedly connected with positioning card (1) and
The parts such as fixed ear (8)；Positioning card (1) is stuck on the first support plate (13) after passing through the first support plate discharge orifice (14), is formed
The distal affixation points of the steering tool；Fixed ear (8) is bolted on the flange bolt hole of steam generator hand hole (11)
On, form the proximal end fixed point of the steering tool；Supporting guide (6) is for fixing and supporting the steering tool.
3. the first support plate of steam generator video check steering tool according to claim 2, it is characterised in that: in institute
The upper surface for the supporting guide (6) stated is provided with sliding rail along its length, for matching with guiding trestle (7), realizes guiding
Sliding of the bracket (7) relative to supporting guide (6).
4. the first support plate of steam generator video check steering tool according to claim 1, it is characterised in that: described
Supporting guide (6) integrally be made of stainless steel.
5. the first support plate of steam generator video check steering tool according to claim 1, it is characterised in that: in institute
The hollow out of many places circle or other shapes is set on the supporting guide (6) stated, for mitigating the weight of steering tool.
6. the first support plate of steam generator video check steering tool according to claim 3, it is characterised in that: described
The generally hollow L shape structure of guiding trestle (7), shape and the shape of supporting guide (6) match；Guiding trestle (7)
Front end be guiding elbow (3), guiding elbow (3) upper end stretch out the first support plate discharge orifice (14), lower end passes through rotary joint
(2) it is connect with the main body of guiding trestle (7)；Guiding trestle (7) is for realizing the guide function to video probe.
7. the first support plate of steam generator video check steering tool according to claim 6, it is characterised in that: in institute
There are two groups of sliding blocks (5) on the downside of the guiding trestle (7) stated, sliding block (5) couples with the sliding rail of supporting guide (6) upper surface, makes to lead
It can be free to slide with respect to supporting guide (6) to bracket (7).
8. the first support plate of steam generator video check steering tool according to claim 6, it is characterised in that: steaming
A handheld box is configured on the outside of vapour generator (10), handheld box is connect by two wirerope with rotary joint (2), grasped by hand
The control turned to guiding elbow (3) is realized in the operation of box.
9. the first support plate of steam generator video check steering tool according to claim 1, it is characterised in that: described
Guiding trestle 7 whole be made of stainless steel.
10. the first support plate of steam generator video check steering tool according to claim 1, it is characterised in that: institute
The supporting guide (6) and guiding trestle (7) stated are multi-segment structure, are coupled between each segment structure by bolt or pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574034.6A CN109540908B (en) | 2018-12-21 | 2018-12-21 | Video inspection guiding tool and video inspection method for first supporting plate of steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574034.6A CN109540908B (en) | 2018-12-21 | 2018-12-21 | Video inspection guiding tool and video inspection method for first supporting plate of steam generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109540908A true CN109540908A (en) | 2019-03-29 |
| CN109540908B CN109540908B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811574034.6A Active CN109540908B (en) | 2018-12-21 | 2018-12-21 | Video inspection guiding tool and video inspection method for first supporting plate of steam generator |
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| CN (1) | CN109540908B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830591A (en) * | 2019-04-23 | 2020-10-27 | 斗山重工业建设有限公司 | Steam generator inspection device |
| CN113758867A (en) * | 2021-08-09 | 2021-12-07 | 国核电站运行服务技术有限公司 | Detection device for heat transfer tube of steam generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0926107A (en) * | 1995-07-12 | 1997-01-28 | Mitsubishi Heavy Ind Ltd | Cleaning device of steam generator |
| CN1225742A (en) * | 1996-06-14 | 1999-08-11 | R·布鲁克斯联合公司 | Inspection device |
| CN1615435A (en) * | 2002-01-14 | 2005-05-11 | R·布鲁克斯合伙人公司 | Device for remote inspection of steam generator tubes |
| CN103003887A (en) * | 2009-05-27 | 2013-03-27 | R.布鲁克斯合伙人公司 | Steam generator upper bundle inspection tools |
| CN207882159U (en) * | 2017-10-26 | 2018-09-18 | 辽宁红沿河核电有限公司 | A kind of video inspection device |
| CN209821082U (en) * | 2018-12-21 | 2019-12-20 | 核动力运行研究所 | Video inspection guiding tool for first supporting plate of steam generator |
-
2018
- 2018-12-21 CN CN201811574034.6A patent/CN109540908B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0926107A (en) * | 1995-07-12 | 1997-01-28 | Mitsubishi Heavy Ind Ltd | Cleaning device of steam generator |
| CN1225742A (en) * | 1996-06-14 | 1999-08-11 | R·布鲁克斯联合公司 | Inspection device |
| CN1615435A (en) * | 2002-01-14 | 2005-05-11 | R·布鲁克斯合伙人公司 | Device for remote inspection of steam generator tubes |
| CN103003887A (en) * | 2009-05-27 | 2013-03-27 | R.布鲁克斯合伙人公司 | Steam generator upper bundle inspection tools |
| CN207882159U (en) * | 2017-10-26 | 2018-09-18 | 辽宁红沿河核电有限公司 | A kind of video inspection device |
| CN209821082U (en) * | 2018-12-21 | 2019-12-20 | 核动力运行研究所 | Video inspection guiding tool for first supporting plate of steam generator |
Non-Patent Citations (1)
| Title |
|---|
| 丁训慎: "核电站蒸汽发生器的清洗技术", 清洗世界, no. 04 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830591A (en) * | 2019-04-23 | 2020-10-27 | 斗山重工业建设有限公司 | Steam generator inspection device |
| CN111830591B (en) * | 2019-04-23 | 2024-03-26 | 斗山重工业建设有限公司 | Steam generator inspection device |
| CN113758867A (en) * | 2021-08-09 | 2021-12-07 | 国核电站运行服务技术有限公司 | Detection device for heat transfer tube of steam generator |
| CN113758867B (en) * | 2021-08-09 | 2024-02-27 | 国核电站运行服务技术有限公司 | Detection device for heat transfer pipe of steam generator |
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| Publication number | Publication date |
|---|---|
| CN109540908B (en) | 2024-03-19 |
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