CN206420817U - A kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex - Google Patents
A kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex Download PDFInfo
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- CN206420817U CN206420817U CN201621468633.6U CN201621468633U CN206420817U CN 206420817 U CN206420817 U CN 206420817U CN 201621468633 U CN201621468633 U CN 201621468633U CN 206420817 U CN206420817 U CN 206420817U
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- transfer pipe
- hoistable platform
- probe guide
- steam generator
- probe
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
A kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex includes the rotation platform of upper end, double column guide rails, hoistable platform and double taper attachments;Hoistable platform carries double taper attachments and moved up and down along double column guide rails.The hoistable platform surrounds general frame by sheet material, and lifting motor, conduit, lifting motor connection reduction box are fixed with inside hoistable platform;Probe guide is fixed with the bottom of hoistable platform;Eddy current probe first passes through conduit, is then passed through probe guide by double taper attachment drivings, finally enters heat-transfer pipe and carries out eddy current inspection.The one side of geometrical clamp is arranged on the bottom plate of hoistable platform, and another side is then fixed with hinge four-bar clamp system;The frame of the cylinder body of cylinder and hinge four-bar clamp system is hinged, and the front end of the piston rod of cylinder and the connecting rod A of quadric chain and connecting rod B node are hinged, and lead is then fixed on connecting rod C.
Description
Technical field
The technology belongs to guider field, and in particular to a kind of to be used for what horizontal steam generator heat-transfer pipe vortex was detected
Probe guide.
Background technology
In nuclear power station, steam generator heat-transfer pipe is the capital equipment of nuclear power station and the pressure side of reactor cooling system
Boundary, its pressure boundary area accounts for more than the 70% of primary Ioops border.Because heat-transfer pipe is 1mm or so light-wall pipe, Er Qieyun
Row operating mode is very severe, so heat-transfer pipe is always the link of primary Ioops pressure boundary weakness the most.International nuclear power operational data
Statistics shows, about more than 50% the different degrees of breakage of heat-transfer pipe is occurring with steam generator.Domestic and international each nuclear power
Country's implementation preservice inspection regular to steam generator heat-transfer pipe and inservice inspection.
The steam generator for the horizontal pair of collecting pipe structure that the steam generator of VVER-1000M units is used, heat-transfer pipe is adopted
With horizontally disposed, referred to as horizontal steam generator.More than 10000 heat-transfer pipe is stood by internal diameter φ 834mm, wall thickness 171mm two
Heat-transfer pipe is divided into cold and hot two large divisions by formula header, and using hydraulic pressure and mechanical expanding on header.
In view of the particularity of horizontal steam generator structure, probe positioning used and taper attachment and vertical steam generator
It is entirely different.Pipe vortex detection device needs to initially pass through φ 500mm manhole, enters back into internal diameter φ 834mm, high 5m header
It is interior, carry out eddy current inspection.
Utility model content
The purpose of this utility model is:A kind of probe detected for horizontal steam generator heat-transfer pipe vortex is provided to lead
To device, by cylinder control, when probe apparatus straight down when, eddy current detecting equipment can initially pass through manhole and enter header
It is interior.When probe guide is horizontal, eddy current probe is checked through the device into heat-transfer pipe.
The technical solution of the utility model is as follows:A kind of probe detected for horizontal steam generator heat-transfer pipe vortex is led
Include the rotation platform of upper end, double column guide rails, hoistable platform and double taper attachments to device;Hoistable platform carries double push away and pulls out dress
Put along double column guide rails and move up and down.
The hoistable platform surrounds general frame by sheet material, and lifting motor, conduit are fixed with inside hoistable platform, lifting
Motor connection reduction box;Probe guide is fixed with the bottom of hoistable platform;Eddy current probe drives by double taper attachments,
Conduit is first passed through, probe guide is then passed through, heat-transfer pipe is finally entered and carries out eddy current inspection.
In probe guide, calibrating tube is arranged in lead, is fixed by nut;Conduit is fastened on geometrical clamp,
The one side of geometrical clamp is arranged on the bottom plate of hoistable platform, and another side is then fixed with hinge four-bar clamp system;The cylinder body of cylinder
It is hinged with the frame of hinge four-bar clamp system, the front end of the piston rod of cylinder and the connecting rod A of quadric chain and connecting rod B section
Point articulated, lead is then fixed on connecting rod C.
Also include cylinder, choke valve in probe guide, cylinder controls the motion of piston rod by magnetic valve, promote
Parallel motion;Choke valve is installed in two inlet ends of cylinder, by adjusting the valve port opening of choke valve, control four
The movement velocity of linkage, improves security.
Groove is milled with hoistable platform bottom plate, has guide angle in the top of groove;Hinge four-bar clamp system promotes lead
It is embedded on base tub, it is to avoid lead is rocked.
There are two mounting holes on geometrical clamp, groove is milled with the central plane of two mounting holes, in two mounting holes
Bottom also groove milling, increases the elasticity of geometrical clamp
Screw installation position is also machined with mounting hole.
Magnetic valve, electrical box are further fixed on inside hoistable platform.
Conduit is fastened on geometrical clamp by screw.
Remarkable result of the present utility model is:
1) promote hinge four-bar clamp system to realize the rotary motion of probe lead using double-acting cylinder.Structure is tight
Gather, make full use of the space of horizontal direction.
2) choke valve is installed in two inputs of double-acting cylinder, controls the rotary speed of probe guide, carry
High security.
3) whole probe guide is arranged on the bottom of hoistable platform, and it is convenient to dismount.
4) mechanical position limitation, the anglec of rotation of restricted guidance post are used in hinge four-bar clamp system so that probe lead
Motion it is smooth, do not influenceed by air pressure.
5) groove and guide angle are milled with the bottom of hoistable platform, the quick positioning of probe lead is realized.
6) using the geometrical clamp of open-type so that conduit convenient disassembly, connection fastening is reliable.
7) rotary motion of solenoid valve control probe guide is passed through, it is easy to accomplish remote control.
Brief description of the drawings
Fig. 1 shows for the probe guide described in the utility model detected for horizontal steam generator heat-transfer pipe vortex
It is intended to;
Fig. 2 is the probe guide pair described in the utility model detected for horizontal steam generator heat-transfer pipe vortex
Taper attachment schematic diagram;
Fig. 3 is the probe guide liter described in the utility model detected for horizontal steam generator heat-transfer pipe vortex
Platform schematic diagram drops;
Fig. 4 visits to be described in the utility model for the probe guide that horizontal steam generator heat-transfer pipe vortex is detected
Head guider schematic diagram:
Fig. 5 visits to be described in the utility model for the probe guide that horizontal steam generator heat-transfer pipe vortex is detected
Head guider and hoistable platform schematic diagram
Fig. 6 is the probe guide hinge described in the utility model detected for horizontal steam generator heat-transfer pipe vortex
The tight structural scheme of mechanism of the bar cramp of chain four
Fig. 7 opens for the probe guide described in the utility model detected for horizontal steam generator heat-transfer pipe vortex
The geometrical clamp schematic diagram of the shape of the mouth as one speaks
In figure:1 rotation platform of upper end, the 2 pairs of column guide rails, 3 hoistable platforms, the 4 pairs of taper attachments, 5 sheet materials, 7 reduction boxes,
6 lifting motors, 8 magnetic valves, 9 electrical box, 10 conduits, 11 probe guides, 12 cylinders, 13 choke valves, 14 hinge four-bars folder
Tight mechanism, 15 leads, 16 calibrating tubes, 17 nuts, 18 geometrical clamps, 19 hoistable platform bottom plates, 20 cylinder bodies, 21 frames, 22 pistons
Bar, 23 promote connecting rod A, 24 connecting rod B, 25 connecting rod C, 26 rotating shafts
Embodiment
A kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex, includes the rotation platform of upper end
1, double column guide rails 2, hoistable platform 3 and double taper attachments 4.Hoistable platform 3 carries double taper attachments 4 along double column guide rails 2
Move up and down.
Hoistable platform 3 surrounds general frame by sheet material 5, be fixed with inside hoistable platform 3 lifting motor 6, magnetic valve 8,
Electrical box 9, conduit 10, the connection reduction box 7 of lifting motor 6.Probe guide 11 is fixed with the bottom of hoistable platform 3.Whirlpool
Stream probe drives by double taper attachments 4, first passes through conduit 10, is then passed through probe guide 11, finally enters heat-transfer pipe and enter
Row eddy current inspection.Probe guide 11 includes cylinder 12, choke valve 13, hinge four-bar clamp system 14, lead 15, demarcation
Pipe 16, nut 17, wherein geometrical clamp 18, calibrating tube 16 are arranged in lead 15, are fixed by nut 17.Conduit 10 passes through spiral shell
Nail is fastened on geometrical clamp 18, and the one side of geometrical clamp 18 is arranged on hoistable platform bottom plate 19, and another side is then pressed from both sides with hinge four-bar
Tight mechanism 14 is fixed.The cylinder body 20 of cylinder is hinged with the frame 21 of hinge four-bar clamp system 14, before the piston rod 22 of cylinder
The node with the connecting rod A23 and connecting rod B24 of quadric chain is held to be hinged, lead 15 is then fixed on connecting rod C25.
Cylinder 12 controls the motion of piston rod 22 by magnetic valve 8, promotes quadric chain 14 to move, it is easy to accomplish remote
Process control.Choke valve 13 is installed in two inlet ends of cylinder 12, by adjusting the valve port opening of choke valve 13, control four connects
The movement velocity of linkage 14, improves security.
Groove is milled with hoistable platform bottom plate 19, has guide angle in the top of groove.Hinge four-bar clamp system 14 is promoted and led
It is embedded in post 15 on base tub, it is to avoid lead 15 is rocked.And guide angle then enables lead smoothly enter in groove.
Using the geometrical clamp 18 of open-type, there are two mounting holes on geometrical clamp 18, in the central plane of two mounting holes
Groove is inside milled with, in the bottom of two mounting holes also groove milling, increases the elasticity of geometrical clamp, screw installation is also machined with mounting hole
Position.Come A/C and clamping seats using screw, fastening is reliable, convenient disassembly
Promote hinge four-bar clamp system 14 to realize the rotary motion of probe lead 15 using cylinder, make full use of lifting
The horizontal space of the bottom of platform 3, compact conformation.When the piston rod 22 of cylinder rises from, connecting rod A23 and connecting rod B24 motions are promoted,
Connecting rod C25 and probe lead 11 is promoted to be horizontal.When piston rod is pulled back, connecting rod C25 and probe lead 11 are in then
Vertical state.
If piston rod 22 is pulled back, probe lead 11 from horizontality to the vertical direction anglec of rotation more than 90 ° after, by
It is long in probe lead 11 and calibrating tube, and have constant weight, it is necessary to which larger air pressure can just make probe lead 11
Rotated to horizontal direction.In order to limit the anglec of rotation of probe lead (11), by connection piston rod, connecting rod A23 and connecting rod B24
Rotating shaft 26 emersion certain length.After lead rotates to certain angle toward vertical direction, rotating shaft is contacted with frame, so as to limit
Make the angle of rotation.
Because the inner space of hoistable platform is limited, if probe guide 11 is arranged on inside, other groups can be influenceed
The dismounting of part.And probe guide is arranged on to the bottom of hoistable platform, bulk is big, and the dismounting with other components is not deposited
Interference spatially.
Claims (9)
1. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex, it is characterised in that:Including upper end
Rotation platform (1), double column guide rails (2), hoistable platform (3) and double taper attachment (4);Hoistable platform (3) carries double push away and pulled out
Device (4) moves up and down along double column guide rails (2).
2. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex according to claim 1,
It is characterized in that:The hoistable platform (3) surrounds general frame by sheet material (5), and lifting electricity is fixed with inside hoistable platform (3)
Machine (6), conduit (10), lifting motor (6) connection reduction box (7);Probe guide is fixed with the bottom of hoistable platform (3)
(11);Eddy current probe first passes through conduit (10), is then passed through probe guide (11), finally by double taper attachment (4) drivings
Eddy current inspection is carried out into heat-transfer pipe.
3. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex according to claim 2,
It is characterized in that:In probe guide (11), calibrating tube (16) is arranged in lead (15), fixed by nut (17);
Conduit (10) is fastened on geometrical clamp (18), and the one side of geometrical clamp (18) is arranged on the bottom plate (19) of hoistable platform, another side
It is then fixed with hinge four-bar clamp system (14);The cylinder body (20) of cylinder is cut with scissors with the frame (21) of hinge four-bar clamp system (14)
Connect, the front end of the piston rod (22) of cylinder and the connecting rod A (23) of quadric chain and connecting rod B (24) node are hinged, lead
(15) then it is fixed on connecting rod C (25).
4. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex according to claim 3,
It is characterized in that:Also include cylinder (12), choke valve (13) in probe guide (11), cylinder (12) passes through magnetic valve (8)
To control the motion of piston rod (22), quadric chain (14) motion is promoted;Section is installed in two inlet ends of cylinder (12)
Valve (13) is flowed, by adjusting the valve port opening of choke valve (13), the movement velocity of control quadric chain (14) improves safety
Property.
5. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex according to claim 3,
It is characterized in that:Groove is milled with hoistable platform bottom plate (19), has guide angle in the top of groove;Hinge four-bar clamp system
(14) lead (15) is promoted to be embedded on base tub, it is to avoid lead (15) are rocked.
6. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex according to claim 3,
It is characterized in that:There are two mounting holes on geometrical clamp (18), groove is milled with the central plane of two mounting holes, in two peaces
The bottom also groove milling in hole is filled, increases the elasticity of geometrical clamp.
7. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex according to claim 6,
It is characterized in that:Screw installation position is also machined with mounting hole.
8. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex according to claim 2,
It is characterized in that:Magnetic valve (8), electrical box (9) are further fixed on inside hoistable platform (3).
9. a kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex according to claim 3,
It is characterized in that:Conduit (10) is fastened on geometrical clamp (18) by screw.
Priority Applications (1)
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CN201621468633.6U CN206420817U (en) | 2016-12-29 | 2016-12-29 | A kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex |
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CN201621468633.6U CN206420817U (en) | 2016-12-29 | 2016-12-29 | A kind of probe guide detected for horizontal steam generator heat-transfer pipe vortex |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108254435A (en) * | 2016-12-29 | 2018-07-06 | 核动力运行研究所 | A kind of probe guide for the detection of horizontal steam generator heat-transfer pipe vortex |
CN108732239A (en) * | 2018-06-28 | 2018-11-02 | 江苏核电有限公司 | A kind of steam generator heat-transfer pipe vortex inspection probe automatic calibration device and its installation method |
CN109975394A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | Probe door stretching structure for the detection of horizontal steam generator heat-transfer pipe vortex |
-
2016
- 2016-12-29 CN CN201621468633.6U patent/CN206420817U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108254435A (en) * | 2016-12-29 | 2018-07-06 | 核动力运行研究所 | A kind of probe guide for the detection of horizontal steam generator heat-transfer pipe vortex |
CN109975394A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | Probe door stretching structure for the detection of horizontal steam generator heat-transfer pipe vortex |
CN108732239A (en) * | 2018-06-28 | 2018-11-02 | 江苏核电有限公司 | A kind of steam generator heat-transfer pipe vortex inspection probe automatic calibration device and its installation method |
CN108732239B (en) * | 2018-06-28 | 2023-09-08 | 江苏核电有限公司 | Automatic calibration device for vortex inspection probe of heat transfer tube of steam generator and installation method of automatic calibration device |
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