CN105806937B - A kind of steam generator heat-transfer pipe ultrasonic examination system - Google Patents
A kind of steam generator heat-transfer pipe ultrasonic examination system Download PDFInfo
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- CN105806937B CN105806937B CN201410848228.6A CN201410848228A CN105806937B CN 105806937 B CN105806937 B CN 105806937B CN 201410848228 A CN201410848228 A CN 201410848228A CN 105806937 B CN105806937 B CN 105806937B
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Abstract
The present invention relates to a kind of steam generator heat-transfer pipe ultrasonic examination systems, including probe assembly, probe rotating device, probe door gear, conduit；Probe assembly includes probe gripper, several probes being arranged in probe gripper, the ultrasonic cable connecting with ultrasonic probe；Rotating device of popping one's head in includes sliding brush, motor；Sliding brush includes motion parts and fixed part；Ultrasonic cable is connect with the motion parts of sliding brush；Motor output shaft is connect with the motion parts of sliding brush, drives probe assembly unitary rotation；The water supply pipe joint with its internal connection is provided on probe door gear；Conduit passes through probe door gear and the connection with probe rotating device；Several cables and water supplying pipe are equipped in conduit；Cable one end is connect with the fixed part of sliding brush and motor respectively；Water supplying pipe one end is connect with water supply pipe joint.The present invention can be directed to the periodic inspection of steam generator heat-transfer pipe parent metal material, especially the water logging ultrasonic examination system of the inspection of the tube expansion transition region of heat-transfer pipe and tube sheet.
Description
Technical field
The present invention relates to nuclear engineering technical fields, and in particular to a kind of steam generator heat-transfer pipe ultrasonic examination system.
Background technique
Steam generator is two or more fluids there are the heat-transfer equipment that internal heat when temperature difference is transmitted, be petroleum,
Important equipment in the fields such as chemical industry.Heat-transfer pipe contacts cold and hot simultaneously in the process of running as the heating surface of steam generator
Fluid, for a long time by high temperature and pressure, media impingement, vibration, corrosion the effects of, be the weak link of main equipment pressure boundary, be
Anti- stopping leak inspection, the generation of erroneous detection event, therefore periodic inspection must be carried out to the region.
Alternating action of the steam generator heat-transfer pipe in equipment running process by factors such as temperature, stress, corrosion holds
The problems such as the defects of being also easy to produce crackle, burn into spot corrosion and heat-transfer pipe trommel.
Conducting heat, bore is small, tube wall is thin, and is sealed in inside steam generator, generally uses EDDY CURRENT skill both at home and abroad
Art.To steam generator heat-transfer pipe carry out eddy current inspection when, other than the flaw indication of heat-transfer pipe, there are also structure, tubular object extruding,
Deposit and the various combination between them, can generate a large amount of distorted signal, so as to cause erroneous judgement and missing inspection, to vortex
Detection causes difficulty.Steam generator heat-transfer pipe inspection generally uses eddy detection technology, but eddy current detection method is to shape
Complicated crack detection level is lower, to Flaw discrimination, quantitative inaccuracy；The tube expansion transition region caliber that heat-transfer pipe is connect with tube sheet
Constantly change with wall thickness, and heat-transfer pipe and tube sheet both basic materials have differences, and can not be protected using electric current when EDDY CURRENT
Its precision is demonstrate,proved, difficulty can be will cause to EDDY CURRENT.
Summary of the invention
The object of the present invention is to provide a kind of periodic inspections for steam generator heat-transfer pipe parent metal material, especially
It is the water logging ultrasonic examination system of the inspection of the tube expansion transition region of heat-transfer pipe and tube sheet.
The invention is realized in this way a kind of steam generator heat-transfer pipe ultrasonic examination system, including penetrate steam generation
Ultrasonic examination component in device heat-transfer pipe；It includes probe assembly, probe rotating device, probe door gear, conduit；
The probe assembly includes that probe gripper, several probes being arranged in probe gripper and ultrasonic probe connect
The ultrasonic cable connect；
The probe rotating device includes sliding brush, motor；Sliding brush includes motion parts and fixed part；Ultrasonic cable and cunning
The motion parts of brush connect；Motor output shaft is connect with the motion parts of sliding brush, drives probe assembly unitary rotation；
The probe door gear is hollow structure, is provided on the probe door gear and connects with the water supplying pipe of its internal connection
Head；Conduit passes through probe door gear and the connection with probe rotating device；
Several cables and water supplying pipe are equipped in the conduit；Described several cable one end respectively with the fixed part of sliding brush and
Motor connection；Water supplying pipe one end is connect with the water supply pipe joint；Several cables and the water supplying pipe other end prolong with conduit
It extends on the outside of steam generator.
The probe assembly further includes petal and guide head；
The probe gripper is column structure, and outer diameter is slightly less than steam generator heat-transfer pipe internal diameter；Two petal difference
It is connected to probe gripper both ends；The petal is plastic hollow petal self-locking joint；The maximum outside diameter of petal expansion is slightly larger than steaming
Vapour generator heat transfer bore；It is connect far from the petal equipped with cable aperture one end with guide head in probe gripper；Ultrasonic cable is certainly
The petal that probe gripper is equipped with cable aperture one end penetrates cable aperture and connect with ultrasonic probe.
The probe door gear is tubulose silica gel sealing seat.
It further include being located at the probe that one end outside steam generator is connect with conduit and pushing away to pull out device, the probe, which pushes away, pulls out device driving
Conduit moves forward and backward.
It further include water pump, water tank；The water pump is connect with one end that water supplying pipe is located on the outside of steam generator, the water pump with
Water tank passes through piping connection.
It further include the probe positioner for driving the ultrasonic examination component to move and position in steam generator.
Beneficial effects of the present invention:
(1) in probe assembly of the invention, high-frequency narrow-pulse point focusing ultrasonic probe is installed in probe gripper, to heat transfer
Pipe internal surface implements water logging ultrasonic examination, by analyzing ultrasonic automatic data collection signal, it can be found that circumferential defect,
Axial flaw, volume class defect and wall thickness reduction variation, it is accurate to defect progress qualitative, and flaw height and length are carried out
Accurate quantification.The inspection of water logging ultrasound is used to heat-transfer pipe, defect detection rate is high, and positioning and quantitative is accurate.
(2) dedicated probe rotating device of the invention and control system drive ultrasonic probe and component inside heat-transfer pipe
Circumferential direction movement is done, while spin inside heat-transfer pipe under axial drive means drive formula scanning, axial stepping circumferential direction
Scanning, can effectively detect the defect of different directions, and equipment is reliable and stable.
(3) probe door gear of the invention, the device may be implemented guidance ultrasonic probe and accurately enter specified heat-transfer pipe
In pipe, accurately ultrasonic probe can be positioned, and had easy for assemble or unload.
(4) water logging ultrasonic examination water sealing device of the invention provides the couplant water of water logging ultrasonic examination needs, can be with
It is dipped in probe and component in water completely, and is capable of providing couplant and stablizes supply, and the entire water-stop for checking system.
Detailed description of the invention
Fig. 1 is probe assembly, probe rotating device, probe door gear structural schematic diagram；
Fig. 2 is steam generator heat-transfer pipe ultrasonic examination system schematic diagram of the invention；
In figure: 1 probe assembly；2 probe rotating devices；3 probe door gears；4 probes；5 probe grippers；6 petals；7 ultrasounds
Cable；8 sliding brushes；9 bearing blocks；10 coupling spindles；11 motors；12 silica gel sealing seats；15 water supplying pipes；16 conduits；17 probe positioners；
18 probes, which push away, pulls out device；The 19 long cables of ultrasound；20 controlling terminals；21 water pumps control cable；22 water pumps；23 water supplying pipes；24 water tanks.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples:
As shown in Fig. 2, steam generator heat-transfer pipe water logging ultrasonic examination system of the invention, including probe assembly 1, probe
Rotating device 2, probe door gear 3, probe push away and pull out device 18, the probe positioner 17；
Probe assembly 1 protrudes into heat-transfer pipe, and one end is connect with conduit 16, and 16 other end of conduit extends steam generator
Outside, it and is fixed on probe and pushes away and pull out on device 18, the probe, which pushes away, pulls out device 18 similar to patent CN201120161378.1, entitled
Structure described in " vortex probe pushing-pulling device "；The long cable 19 of ultrasound, the first cable and water supplying pipe 23 are equipped in conduit 16；
Probe, which pushes away, to be pulled out device 18 and connect with controlling terminal 20 by cable, is given to push away by controlling terminal 20 and is pulled out the control of device control cabinet 20
Signal processed pulls out device 18 to control probe and push away, to realize moving forward and backward for conduit 16；
17 structure of probe positioner is similar to patent CN201420259132, entitled " nuclear power station steam generator two
Structure described in secondary side wall climbing vehicle "；
Probe positioner 17 is connect by cable with controlling terminal 20, and the movement of probe positioner 17 is controlled；Probe positioning
Probe assembly 1 is sent into specified heat-transfer pipe nozzle by the movement of device 17；
The probe assembly 1 includes probe 4, probe gripper 5, petal 6, ultrasonic cable 7；
Probe gripper 5 is column structure, and outer diameter is slightly less than steam generator heat-transfer pipe internal diameter；It is axially arranged with along it several
The probe mounting holes of a uniform intervals and radially break-through；It is additionally provided with a cable aperture, which wears with its axial one end
It is logical；
In the 4 insertion probe mounting holes of probe；Two petals 6 are respectively engaged with 5 both ends of probe gripper；
The petal 6 is plastic hollow petal self-locking joint；The maximum outside diameter that petal 6 is expanded is passed slightly larger than steam generator
Heat pipe internal diameter；
Probe gripper 5 is equipped with the petal 6 on one end far from cable aperture and connect with guide head；
The coniform plastic body of guide head, outer diameter are less than steam generator heat-transfer pipe internal diameter；
Ultrasonic cable 7 penetrates cable aperture from one end petal 6 that probe gripper 5 is equipped with cable aperture and connect with probe 4；
The probe rotating device 2 includes rigid joint, sliding brush 8, bearing block 9, coupling spindle 10, motor 11；The bearing
Seat 9, connecting shaft 10, motor 11 are sequentially connected；Sliding brush 8 includes motion parts and fixed part；The fortune of ultrasonic cable 7 and sliding brush 8
Dynamic part connects；11 output shaft of motor is connect with the motion parts of sliding brush 8, drives 1 unitary rotation of probe assembly；The rigidity connects
Head both ends are connected in the motion parts of 1 end of probe assembly and sliding brush 8 respectively；
It pops one's head in the generally cannula structure of door gear 3, including tubulose silica gel sealing seat 12, is located on tubulose silica gel sealing seat 12
And the water supply pipe joint 15 with 12 inside connection of tubulose silica gel sealing seat；Conduit 16 passes through probe door gear 3 and probe rotating dress
Set 2 connections.
The long cable 19 of ultrasound in conduit 16 is located at one end in steam generator and connect with the fixed part of sliding brush 8, position
It is connect in the other end outside steam generator with controlling terminal 20；
One end that the first cable in conduit 16 is located in steam generator is connect with motor 11, is located at outside steam generator
The other end connect with controlling terminal 20；
Water supplying pipe 23 in conduit 16 is located at one end in steam generator and connect with the water supply pipe joint 15, in steam
The other end outside generator is connect with water pump 22；Water pump 22 and water tank 24 are supplied water by piping connection for ultrasonic examination.Water pump 22
It controls cable 21 by water pump to connect with controlling terminal 20, controlling terminal 20 controls the operating of water pump 22.
One end that the long cable 19 of ultrasound is located at outside steam generator is connect with controlling terminal 20, by the spy in probe assembly 1
First 4 signal is by sending controlling terminal 20 to；
Controlling terminal 20 and the first cable connection, and then control the movement with the motor 11 of the first cable connection；
Controlling terminal 20 goes back receiving transducer and pushes away the position signal for pulling out device 18 and motor 11, which is from initial time
Probe pushes away the move distance for the tache motorice for pulling out device 18 and motor 11 after beginning；
Present invention probe rotating device 2 and controlling terminal 20 drive probe assembly 1 to move along heat-transfer pipe circumferential direction, pass through
The ultrasonic signal of rotary motion is reached the relatively fixed ultrasonic cable 19 stood by sliding brush 8.Entire circumferential movement driving device 2 is set
Inside heat-transfer pipe, directly it is connect with rotating detector 1.The connection of rotating device 2 pop one's head in all by the way of viscose glue.Motor 11 revolves
Turn, drive slip ring 8 to rotate by coupking shaft 10, slip ring 8 rotates, and ultrasonic probe 4 is driven to rotate.Ultrasonic cable 7 passes through 8 turns of slip ring
The fixing end of slip ring is changed to, then by the slot on the slot and motor cabinet on bearing block 9, reaches motor cover end.
Door gear 3 pop one's head in for guiding probe 4 accurately to enter in heat-transfer pipe, probe door passes through plastic tube 16 and locator 17
It is connected, installation is simple, easy to disassemble.Probe door gear is provided with sealing ring, when can guarantee to implement water logging inspection, couplant
It can be stored in heat-transfer pipe, will not reveal.By carving locating slot on probe, heat-transfer pipe circumferential and axial are determined in realization
Position.Probe door gear can also realize that itself is adjusted to adapt to install in heat-transfer pipe mounting hole.
Water after water sealing device is used for water supply when ultrasonic probe carries out water logging inspection and has checked recycles, water supplying pipe
23 connection water pumps 22 reach 4 positions of probe by the plastic tube 16 equipped with ultrasonic cable and control cable, pass through the pumping of water pump 22
The supply of couplant water when function realizes ultrasonic examination.
Claims (6)
1. a kind of steam generator heat-transfer pipe ultrasonic examination system, it is characterised in that: including penetrating in steam generator heat-transfer pipe
Ultrasonic examination component；It includes probe assembly, probe rotating device, probe door gear, conduit；
The probe assembly includes probe gripper, several probes being arranged in probe gripper, connect with ultrasonic probe
Ultrasonic cable；
The probe rotating device includes rigid joint, sliding brush, bearing block, connecting shaft, motor；The bearing block, connecting shaft, electricity
Machine is sequentially connected；Sliding brush includes motion parts and fixed part；Ultrasonic cable is connect with the motion parts of sliding brush；The output of motor
Axis is connect with the motion parts of sliding brush, drives probe assembly unitary rotation；The rigid joint both ends are connected in probe assembly respectively
The motion parts of end and sliding brush；
The probe door gear is hollow structure, and the water supply pipe joint with its internal connection is provided on the probe door gear；It leads
Connection of the pipe across probe door gear and with probe rotating device；
Several cables and water supplying pipe are equipped in the conduit；The fixed part and motor that described several cable one end are brushed with cunning respectively
Connection；Water supplying pipe one end is connect with the water supply pipe joint；Several cables and the water supplying pipe other end are extended to conduit
On the outside of steam generator；
The probe rotating device, probe assembly form circumferential movement driving device, and entire circumferential movement driving device is placed in
Inside heat-transfer pipe, directly it is connect with rotating detector.
2. steam generator heat-transfer pipe ultrasonic examination system described in accordance with the claim 1, it is characterised in that: the probe assembly
It further include petal and guide head；
The probe gripper is column structure, and outer diameter is slightly less than steam generator heat-transfer pipe internal diameter；Two petals are clamped respectively
At probe gripper both ends；The petal is plastic hollow petal self-locking joint；The maximum outside diameter of petal expansion is sent out slightly larger than steam
Raw device heat transfer bore；It is connect far from the petal equipped with cable aperture one end with guide head in probe gripper；Ultrasonic cable is popped one's head in certainly
The petal that fixture is equipped with cable aperture one end penetrates cable aperture and connect with ultrasonic probe.
3. steam generator heat-transfer pipe ultrasonic examination system described in accordance with the claim 1, it is characterised in that: the probe door dress
It is set to tubulose silica gel sealing seat.
4. steam generator heat-transfer pipe ultrasonic examination system described in accordance with the claim 1, it is characterised in that: further include and conduit
The probe of one end connection outside steam generator pushes away and pulls out device, and the probe, which pushes away, to be pulled out device driving conduit and move forward and backward.
5. steam generator heat-transfer pipe ultrasonic examination system described in accordance with the claim 1, it is characterised in that: further include water pump,
Water tank；The water pump is connect with one end that water supplying pipe is located on the outside of steam generator, and the water pump and water tank pass through piping connection.
6. steam generator heat-transfer pipe ultrasonic examination system described in accordance with the claim 1, it is characterised in that: further include driving institute
State the probe positioner that ultrasonic examination component is moved and positioned in steam generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848228.6A CN105806937B (en) | 2014-12-30 | 2014-12-30 | A kind of steam generator heat-transfer pipe ultrasonic examination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848228.6A CN105806937B (en) | 2014-12-30 | 2014-12-30 | A kind of steam generator heat-transfer pipe ultrasonic examination system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105806937A CN105806937A (en) | 2016-07-27 |
| CN105806937B true CN105806937B (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410848228.6A Active CN105806937B (en) | 2014-12-30 | 2014-12-30 | A kind of steam generator heat-transfer pipe ultrasonic examination system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263505B (en) * | 2016-12-30 | 2023-09-08 | 核动力运行研究所 | Wall climbing trolley and method for grabbing foreign matters between secondary side tube plates of steam generator |
| WO2018157398A1 (en) * | 2017-03-03 | 2018-09-07 | 核动力运行研究所 | Miniature lift-type video inspection device |
| CN109975392B (en) * | 2017-12-27 | 2023-09-08 | 核动力运行研究所 | Device and method for detecting synchronization of probe propeller and probe positioner |
| CN111351852B (en) * | 2018-12-20 | 2024-08-09 | 核动力运行研究所 | Ultrasonic inspection device for heat transfer tube of heat exchanger |
| CN111354486B (en) * | 2018-12-21 | 2024-08-09 | 核动力运行研究所 | Automatic checking device for main bolt of reactor pressure vessel |
Citations (6)
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|---|---|---|---|---|
| CN85105453A (en) * | 1985-07-17 | 1987-01-21 | 西屋电气公司 | Ultrasonic non-destructive pipe testing system |
| EP0276819A1 (en) * | 1987-01-30 | 1988-08-03 | Tokyo Electric Power Company | Automated ultrasonic examination system for heat transfer tubes in a boiler |
| KR101215901B1 (en) * | 2010-12-27 | 2012-12-27 | 주식회사 아거스 | Ultrasonic measuring apparatus for wall thinning of a heat exchanger tube and method thereof |
| CN103207236A (en) * | 2012-01-12 | 2013-07-17 | 清华大学 | Inspection equipment used for spiral tube heat exchanger or steam generator |
| CN103257185A (en) * | 2012-02-20 | 2013-08-21 | 株式会社日立工程服务 | Target absorption fixture and system for ultrasonic inspection |
| CN204302234U (en) * | 2014-12-30 | 2015-04-29 | 中核武汉核电运行技术股份有限公司 | A kind of steam generator heat-transfer pipe ultrasonic examination system |
-
2014
- 2014-12-30 CN CN201410848228.6A patent/CN105806937B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105453A (en) * | 1985-07-17 | 1987-01-21 | 西屋电气公司 | Ultrasonic non-destructive pipe testing system |
| EP0276819A1 (en) * | 1987-01-30 | 1988-08-03 | Tokyo Electric Power Company | Automated ultrasonic examination system for heat transfer tubes in a boiler |
| KR101215901B1 (en) * | 2010-12-27 | 2012-12-27 | 주식회사 아거스 | Ultrasonic measuring apparatus for wall thinning of a heat exchanger tube and method thereof |
| CN103207236A (en) * | 2012-01-12 | 2013-07-17 | 清华大学 | Inspection equipment used for spiral tube heat exchanger or steam generator |
| CN103257185A (en) * | 2012-02-20 | 2013-08-21 | 株式会社日立工程服务 | Target absorption fixture and system for ultrasonic inspection |
| CN204302234U (en) * | 2014-12-30 | 2015-04-29 | 中核武汉核电运行技术股份有限公司 | A kind of steam generator heat-transfer pipe ultrasonic examination system |
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| CN105806937A (en) | 2016-07-27 |
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