CN102486436B - Detection device for steam generator supporting plate - Google Patents
Detection device for steam generator supporting plate Download PDFInfo
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- CN102486436B CN102486436B CN201010572137.6A CN201010572137A CN102486436B CN 102486436 B CN102486436 B CN 102486436B CN 201010572137 A CN201010572137 A CN 201010572137A CN 102486436 B CN102486436 B CN 102486436B
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- rotating shaft
- steam generator
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Abstract
The invention relates to a detection device for a steam generator supporting plate. The detection device comprises multiple sections of cylinders, a detection probe, a collecting and releasing rope, a motor and a take-up device, wherein the detection probe is arranged on the multiple sections of cylinders; any section of cylinder of the multiple sections of cylinders comprises a piston and an end cover; the motor is positioned outside the multiple sections of cylinders and is provided with a reduction box and an encoder; the take-up device is positioned at the bottom in the multiple sections of cylinders and comprises a rotating shaft and a take-up reel which is sleeved on the rotating shaft and is fixedly connected with the rotating shaft; one end of the collecting and releasing rope is connected with the piston of the uppermost section of cylinder, and the other end of the collecting and releasing rope is connected with the take-up reel; one end of the rotating shaft extends out of the multiple sections of cylinders to be connected with the motor; and the position where the rotating shaft extends out of the multiple sections of cylinders is sealed by a sealing device. According to the device, the collecting and releasing rope is driven by using the motor to control the extension length of the cylinder, so that accurate positioning for the extension of the piston of the cylinder is realized. According to the invention, sealing between a wire rope and the cylinder is converted into sealing of the rotating shaft, and the sealing problem can be solved by adopting the conventional sealing mode.
Description
Technical field
The present invention relates to a kind of pick-up unit of Steam Generator Support Plate, particularly relate to a kind of pick-up unit of realizing pinpoint Steam Generator Support Plate.
Background technology
The heat-transfer pipe of steam generator is provided support and is located by back up pad, if back up pad has the accumulation of corrosion product likely to make heat-transfer pipe be corroded and push, finally causes breaking of heat-transfer pipe.Because be filled with the radioactivity chilled water in the heat-transfer pipe of steam generator, if break, will cause emissivity to reveal, consequence is serious, so be necessary Steam Generator Support Plate is detected.
1998, U.S. R.Brooks Associates, Inc. company has developed a set of Steam Generator Support Plate testing fixture.It utilizes the back up pad flow orifice as checking passage, mainly checks piping lane zone, each layer of back up pad center of steam generator.During installation, with the testing fixture of special-purpose mounting base, by the existing hand hole level of steam generator, send into, being positioned behind the specific stream water hole to lift becomes plumbness.The flexible inspection bar of pneumatic actuation moves up and down at the Steam Generator Support Plate opening.
Using air as the cylinder of power, once inner logical upper pressurized air, in the situation that do not have external force to hinder, cylinder piston can stretch out always until its long status.Even reach a certain equilibrium state by adjusting internal air pressure and external loading, can make it temporarily rest on a certain position, but the fluctuation of gaseous tension makes piston precision determine that position is very difficult, the situation that also there will be piston position slowly to move, and the realization of mechanical construction and control system also can be very complicated.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of pick-up unit that can realize the pinpoint Steam Generator Support Plate of cylinder overhang.
For solving the problems of the technologies described above, the pick-up unit of a kind of Steam Generator Support Plate of the present invention, comprise the more piece cylinder and be arranged on the detection probe on the more piece cylinder, and in the more piece cylinder, arbitrary joint cylinder comprises a piston and one and the rigidly connected end cap of piston; While in cylinder, being filled with pressurized air, each saves cylinder by going up most a joint to next joint, stretches out successively; The pick-up unit of Steam Generator Support Plate also comprises withdrawing rope, is positioned at the motor with reducer casing and scrambler of described more piece cylinder outside and the take-up that is positioned at more piece cylinder inner bottom part; Take-up comprises rotating shaft and the fixed cover take-up reel in rotating shaft; One end of withdrawing rope is connected with the piston of going up most a joint cylinder, and the other end is connected with take-up reel; One end of rotating shaft stretches out the more piece cylinder and is connected with motor, and the position that the more piece cylinder is stretched out in rotating shaft is sealed by packoff.
The present invention adopts the motor with scrambler to drive withdrawing rope, the length that control cylinder stretches out, the accurate location of having realized countercylinder piston overhang.
The present invention adopts whole take-up is wrapped in to cylinder shell inside, by the rotating shaft transferring power.So just, the sealing between wire rope and cylinder is converted into to the sealing of countershaft, takes conventional sealing means can solve sealing problem.
The accompanying drawing explanation
The cut-open view of the pick-up unit that Fig. 1 is a kind of Steam Generator Support Plate provided by the present invention.
In figure: 1 is scrambler, and 2 is motor, and 3 is reducer casing, and 4 is shaft coupling, and 5 is take-up reel, and 6 is pulley, and 7 is withdrawing rope, and 8 is the more piece cylinder, and 9 is rotating shaft, and 10 is piston, and 11 is end cap, and 12 is mount pad.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
The present invention includes more piece cylinder 8.In more piece cylinder 8 arbitrary joint cylinder comprise a piston 10 and one with described piston 10 by the rigidly connected end cap 11 of cylinder wall.
The present invention also comprises detection probe.Go up most on the end cap of a displacements of cylinders and be bolted a mount pad 12 is installed, described detection probe is fixed on described mount pad 12.
The present invention also comprises the motor 2 that is positioned at more piece cylinder 8 outsides.The top of motor 2 is equipped with scrambler 1, and bottom is equipped with reducer casing 3.
The present invention also comprises the take-up that is positioned at more piece cylinder 8 bases.The take-up reel 5 be fixedly connected with rotating shaft 9 on this take-up comprises rotating shaft 9 and is enclosed within rotating shaft 9.One end of this rotating shaft 9 stretches out more piece cylinder 8 to be realized being connected by a shaft coupling 4 with described motor 2.
The present invention also comprises a pulley 6 that is positioned at the more piece air cylinder base.This pulley 6 be positioned at respectively save cylinder piston 10 under, the bearing of the axle of this pulley 6 and more piece cylinder 8 base inner walls are fixed.
The present invention also comprises withdrawing rope 7.Withdrawing rope 7 is the multiply seizing wire, and its total length equates with the total length after more piece cylinder 8 fully stretches out.One end of this withdrawing rope 7 is connected with the piston 10 of going up most a joint cylinder, then walks around pulley 6, and the other end of withdrawing rope 7 is connected with take-up reel 5.
The position that more piece cylinder 8 is stretched out in rotating shaft 9 is sealed by packoff.Sealing means is usual manner, as O-ring seal.
After applying pressurized air in more piece cylinder 8, each saves cylinder by going up most a joint to next joint, stretches out successively.Take-up reel 5 is driven by the motor 2 with scrambler 1, motor 2 rotary wire-reeling wheels 5, and the length of control withdrawing rope 7, keep withdrawing rope 7 tensioning states, is also the total length that control cylinder stretches out.By motor encoder 1 counting rotating cycle, can calculate real-time the stretching out highly of more piece cylinder 8.
Whole take-up wraps in more piece cylinder 8 enclosure interior, by rotating shaft 9 transferring power, takes conventional sealing means can solve sealing problem.
Claims (5)
1. the pick-up unit of a Steam Generator Support Plate, comprise the more piece cylinder and be arranged on the detection probe on the more piece cylinder, and in described more piece cylinder, arbitrary joint cylinder comprises a piston and one and the rigidly connected end cap of described piston; While in cylinder, being filled with pressurized air, each saves cylinder by going up most a joint to next joint, stretches out successively; It is characterized in that: the pick-up unit of described Steam Generator Support Plate also comprises withdrawing rope, is positioned at the motor with reducer casing and scrambler of described more piece cylinder outside and the take-up that is positioned at described more piece cylinder inner bottom part; Described take-up comprises rotating shaft and the fixed cover take-up reel in rotating shaft; One end of described withdrawing rope is connected with the piston of going up most a joint cylinder, and the other end is connected with take-up reel; One end of described rotating shaft stretches out the more piece cylinder and is connected with described motor, and the position that the more piece cylinder is stretched out in described rotating shaft is sealed by packoff.
2. the pick-up unit of a kind of Steam Generator Support Plate according to claim 1, it is characterized in that: described withdrawing rope is the multiply seizing wire.
3. the pick-up unit of a kind of Steam Generator Support Plate according to claim 1 is characterized in that: the total length of described withdrawing rope equates with the total length after described more piece cylinder fully stretches out.
4. the pick-up unit of a kind of Steam Generator Support Plate according to claim 1, it is characterized in that: described packoff is O-ring seal.
5. the pick-up unit of a kind of Steam Generator Support Plate according to claim 1 is characterized in that: be fixedly installed a mount pad on the described end cap of going up a displacements of cylinders most, described detection probe is fixed on described mount pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010572137.6A CN102486436B (en) | 2010-12-03 | 2010-12-03 | Detection device for steam generator supporting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010572137.6A CN102486436B (en) | 2010-12-03 | 2010-12-03 | Detection device for steam generator supporting plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102486436A CN102486436A (en) | 2012-06-06 |
| CN102486436B true CN102486436B (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010572137.6A Active CN102486436B (en) | 2010-12-03 | 2010-12-03 | Detection device for steam generator supporting plate |
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| CN (1) | CN102486436B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835055A (en) * | 2016-06-04 | 2016-08-10 | 无锡市华鹰移动照明有限公司 | Extending-and-contracting mechanical arm for tunnel detection |
| CN105909038A (en) * | 2016-06-04 | 2016-08-31 | 无锡市华鹰移动照明有限公司 | Pneumatic-electric lifting mast |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008209063A (en) * | 2007-02-27 | 2008-09-11 | Mitsubishi Heavy Ind Ltd | Pipe supporting plate for steam generator |
| CN201876352U (en) * | 2010-12-03 | 2011-06-22 | 核动力运行研究所 | Detecting device of support plate of steam generator |
-
2010
- 2010-12-03 CN CN201010572137.6A patent/CN102486436B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008209063A (en) * | 2007-02-27 | 2008-09-11 | Mitsubishi Heavy Ind Ltd | Pipe supporting plate for steam generator |
| CN101622495A (en) * | 2007-02-27 | 2010-01-06 | 三菱重工业株式会社 | Tube support plate of steam generator |
| CN201876352U (en) * | 2010-12-03 | 2011-06-22 | 核动力运行研究所 | Detecting device of support plate of steam generator |
Non-Patent Citations (4)
| Title |
|---|
| 3.8 PWR蒸汽发生器传热管与管支撑板的缝隙浓集研究;胡石林等;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20080230(第2期);117 * |
| 支撑板制造质保系统中人员可靠性评估的模糊优选模型研究;沈海燕等;《上海理工大学学报》;20000315;第22卷(第一期);75-79 * |
| 沈海燕等.支撑板制造质保系统中人员可靠性评估的模糊优选模型研究.《上海理工大学学报》.2000,第22卷(第一期),75-79. |
| 胡石林等.3.8 PWR蒸汽发生器传热管与管支撑板的缝隙浓集研究.《中国优秀硕士学位论文全文数据库 工程科技I辑》.2008,(第2期),117. |
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| CN102486436A (en) | 2012-06-06 |
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