CN109461508A - A kind of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device - Google Patents
A kind of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device Download PDFInfo
- Publication number
- CN109461508A CN109461508A CN201811574793.2A CN201811574793A CN109461508A CN 109461508 A CN109461508 A CN 109461508A CN 201811574793 A CN201811574793 A CN 201811574793A CN 109461508 A CN109461508 A CN 109461508A
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- Prior art keywords
- suction gun
- gun device
- transfer pipe
- temperature gas
- high temperature
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- 238000012546 transfer Methods 0.000 title claims abstract description 37
- 239000001307 helium Substances 0.000 title claims abstract description 29
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 29
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000007789 gas Substances 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000001819 mass spectrum Methods 0.000 title claims abstract description 21
- 230000003028 elevating effect Effects 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims description 99
- 230000001360 synchronised effect Effects 0.000 claims description 33
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 13
- 238000007689 inspection Methods 0.000 claims description 9
- 210000003734 kidney Anatomy 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000009659 non-destructive testing Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001095 motoneuron effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/017—Inspection or maintenance of pipe-lines or tubes in nuclear installations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/222—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for tubes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention belongs to the non-destructive testing of steam generator heat-transfer pipe and similar heat exchange equipment and maintenance technique fields, more particularly to a kind of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device, check device is cooperated to realize temperature gas cooled reactor steam generator heat-transfer pipe helium leak test work.It is characterized by: it has elevating function, entire throttle resistance part can be accommodated completely, and suction gun device uses double suction rifle structure, disposably can carry out leak test to two tubesheet holes.
Description
Technical field
The invention belongs to the non-destructive testing of steam generator heat-transfer pipe and similar heat exchange equipment and maintenance technique fields, specifically
It is related to a kind of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device.
Background technique
High temperature gas cooled reactor is the advanced unit with nuclear power technology of new generation of China's independent development, steam generator heat transfer
The inspection technology and inspection equipment of pipe are the directions for needing to greatly develop from now on, since its steam generator is totally different from routine
Presurized water reactor, running environment, structure especially tube plate structure are all different, and at present there is no corresponding detection techniques and special detection
Equipment.Temperature gas cooled reactor steam generator heat transfer tube configuration form is spiral coil also different from conventional presurized water reactor, and curved
Bilge radius is small, and the heat-transfer pipe vortex detection mode for not being available current routine is checked, more feasible inspection scheme is real
Helium mass spectrum inspection is applied, helium is delivered by steam generator heat-transfer pipe automation inspection device and examines the path that suction gun device presses planning,
Suction gun is connected with heat-transfer pipe, and keeps leakproofness, helium is pumped to helium mass spectrometer leak detector is passed, analysis instrument helium is dense
Degree, to check the case where each heat-transfer pipe is with the presence or absence of leakage.
Summary of the invention
Temperature gas cooled reactor steam generator heat-transfer pipe is spiral coil, and bending radius is small, is not available EDDY CURRENT mode
It is checked, and orifice union is installed in temperature gas cooled reactor steam generator water chamber, in order to not remove throttle resistance part
In the case of carry out heat-transfer pipe non-destructive testing, need to invent a kind of suction gun device, cooperation check device realizes high temperature gas cooled reactor steam
Generator heat-transfer pipe helium leak test work.
The present invention is implemented as follows:
A kind of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device, has elevating function, can accommodate completely entire
Throttle resistance part, suction gun device use double suction rifle structure, disposably can carry out leak test to two tubesheet holes.
Suction gun device as described above mainly includes elevating mechanism, angle-adjusting mechanism and quick-changing mechanism；Pass through synchronous belt
Angle adjustment is realized in transmission, realizes elevating function by synchronous belt and the transmission of lead screw two-stage；Suction gun lower end has buffer spring,
Suction gun rises to top and with after tube sheet face contact, and suction gun will continue to run under the driving of lifting motor, since suction gun is by pipe
Plate limit, then can compress buffer spring, and the spring pressure that buffer spring provides pastes suction gun top closely with evaporator pipe sheet
It closes；Suction gun is equipped with edge face sealing member, can also reduce impact of the suction gun to tube sheet while realizing sealing, realizes soft connect
Touching.
Elevating mechanism as described above is installed in the rotating shaft upper flanges of angle-adjusting mechanism；Elevating mechanism mainly wraps
Motor, lead screw, suction gun, edge face sealing member, upper end cover, close switch, guide rail, band roller box, elevating mechanism pedestal, cable is included to connect
Head, rotating nuts, flange bearing, spring, feed screw nut, gas-tpe fitting, synchronous pulley, synchronous pulley, ball bearing, motor pass through
Synchronous belt transfers torque to and lead screw, and guide rail is the hollow cylinder that center is provided with vertical direction guide groove, is equipped with and connects on guide rail
Nearly switch prevents the feed screw nut excess of stroke, and feed screw nut can move up and down under the driving of screw rod, realize the elevating function of suction gun；Together
When, band roller box on be also equipped with cable connector, the connection for motor, encoder and limit switch and communication cable.
There are rotating nuts in elevating mechanism top lead screw end as described above, can rotate with lead screw, when appearance powers off feelings
When condition, if suction gun is exactly in lifting state, when entangling throttle resistance part, by twisting rotating nuts, suction gun can be received manually
It returns.
Suction gun device as described above has angle regulating function, and suction gun device is when detecting different tubesheet holes, two suction guns
The line of centres it is different from the guide rail angle of check device, angle-adjusting mechanism includes bearing (ball) cover, crossed roller bearing, synchronization
Belt wheel, pulley shaft, sliding bearing, angle-adjusting mechanism pedestal, synchronous belt, motor, motor driven belt wheel, band roller box；Angle tune
Whole mechanism driving-motor transmits torque by synchronous belt, and synchronous pulley is directly connect with elevating mechanism by bolt, and passes through friendship
Pitch the axial force that roller bearing bears vertical direction；Angle-adjusting mechanism drives entire elevating mechanism to rotate under motor effect,
Realize the angle adjustment of suction gun device；Band roller box is equipped with mechanical limiting mechanism and origin switch, and mechanical limiting mechanism is by one
Swingable active block stop realizes there is fixed stop on elevating mechanism pedestal.
As described above when elevating mechanism moves to+180 position, active block stop swings to positive extreme position, and stops to rise
Descending mechanism continues to rotate forward；On the contrary when suction gun device elevating mechanism moves to -180 position, active block stop swings to cathode extreme position,
And elevating mechanism is stopped to continue to invert；Such angle-adjusting mechanism can realize 360 degree of all standing adjustment, and will not be because of by one
Direction, which unanimously rotates, causes cable to wind.
Suction gun device quick-changing mechanism as described above mainly includes suction gun device pedestal, rotary chuck, chuck fixed block, lock
The parts such as tight pin, positioning pin, horizontal guide rail sliding block form；Quick change construction is mainly realized and high temperature gas cooled reactor helium mass spectrum check device
Fast and stable connection；Horizontal guide rail sliding block is mounted in check device, and horizontal guide rail sliding block is fixed with 3 positioning pins and 3
A locking pin is provided with corresponding pin hole on suction gun device pedestal, and chuck fixed block passes through rotary chuck and suction gun device pedestal is logical
It crosses 3 to be bolted, rotary chuck can be rotated around chuck fixed block, while be provided with kidney slot.
The hole size of kidney slot as described above is variation, is releasing orientation in large aperture end, is in small-bore end
It is locking state.
When suction gun device and horizontal guide rail sliding block as described above are quickly connected, suction gun device pin hole is aligned horizontal
The positioning pin of guide rail slide block after locking pin is inserted into dowel hole, stirs rotary chuck and realizes that suction gun device and manipulator are fixed
Quick locking between the device horizontal guide rail sliding block of position.
The beneficial effects of the present invention are:
1. suction gun device has elevating function, entire throttle resistance part can be accommodated completely, to improve efficiency of hunting leak, suction gun
Device is designed using double suction rifle structure, disposably can carry out leak test to two tubesheet holes.Suction gun device mainly includes packet three
It is most of: elevating mechanism, angle-adjusting mechanism and quick-changing mechanism.
2. the spring pressure that buffer spring provides fits closely suction gun top with evaporator pipe sheet, in order to guarantee that helium is examined
The air-tightness of suction gun in breathing process suction.Suction gun is equipped with edge face sealing member, can also reduce suction while realizing sealing
Impact of the rifle to tube sheet, realizes soft contact.
3. motor and lead screw be by synchronous belt transmitting torque in elevating mechanism, lead screw guide rails are that center is provided with vertical direction and leads
Installing limit switches to the hollow cylinder of slot, in lead screw guide rails prevents the nut excess of stroke, driving of the feed screw nut in trapezoidal screw
Under move up and down, realize the elevating function of suction gun.
4. elevating mechanism top lead screw end there are rotating nuts, can be rotated with lead screw, when there is power-off, if
Suction gun is exactly in lifting state, when entangling throttle resistance part, by twisting rotating nuts, can manually withdraw suction gun.
5. angle-adjusting mechanism transmits torque by motor driven synchronous belt, synchronous pulley by bolt directly and elevator
Structure connection, and pass through the axial force of crossed roller bearing receiving vertical direction.Angle-adjusting mechanism drives whole under motor effect
The angle adjustment of suction gun device is realized in a elevating mechanism rotation.It is straight that motor driven can also be used in suction gun design factors adjustment mechanism
The form of angle retarder realizes angle adjustment.
6. mechanical limiting mechanism is realized by an active block stop that can be swung within a certain angle in angle-adjusting mechanism, rise
There is fixed stop on descending mechanism pedestal.When elevating mechanism moves to+180 position, active block stop swings to positive extreme position, and hinders
Gear elevating mechanism continues to rotate forward；On the contrary when suction gun device elevating mechanism moves to -180 position, active block stop swings to cathode limit
Position, and elevating mechanism is stopped to continue to invert.Such angle-adjusting mechanism can realize 360 degree of all standings adjustment, and will not be because of
Consistent rotation causes cable to wind in a direction.
7. suction gun device and horizontal guide rail sliding block are quickly connected, suction gun device pin hole is directed at horizontal guide rail sliding block
Positioning pin, after locking pin is inserted into dowel hole, stir rotary chuck realize suction gun device led with machine check device level
Quick locking between rail sliding block.The hole size of the kidney slot of rotary chuck is variation, is releasing orientation in large aperture end,
It is locking state in small-bore end.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device of the invention；
Fig. 2 is a kind of schematic diagram of the function of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device of the invention；
Fig. 3 is the structural schematic diagram of elevating mechanism of the invention；
Fig. 4 is the structural schematic diagram of angle-adjusting mechanism of the invention；
Fig. 5 is the mechanical position limitation figure of angle-adjusting mechanism of the invention；
Fig. 6 is the structural schematic diagram of suction gun device quick-changing mechanism of the invention；
Fig. 7 is double suction rifle movement schematic diagram of the invention；
Fig. 8 is suction gun device installation diagram of the invention.
Wherein: 1. suction gun devices, 2. elevating mechanisms, 3. angle-adjusting mechanisms, 4. quick-changing mechanisms, 5. first motors, 6. is same
Step band, 7. second motors, 8. synchronous belts, 9. lead screws, 10. suction guns, 11. edge face sealing members, 12. upper end covers, 13. close switches,
14. guide rail, 15. band roller boxs, 16. elevating mechanism pedestals, 17. cable connectors, 18. rotating nuts, 19. flange bearings, 20. bullets
Spring, 21. feed screw nuts, 22. gas-tpe fittings, 23. first synchronous pulleys, 24. second synchronous pulleys, 25. ball bearings, 26. bearings
End cap, 27. crossed roller bearings, 28. synchronous pulleys, 29. pulley shafts, 30. sliding bearings, 31. angle-adjusting mechanism pedestals,
32. motor driven belt wheel, 33. band roller boxs, 34. origin switch, 35. active block stops, 36. suction gun device pedestals, 37. revotating cards
Disk, 38. chuck fixed blocks, 39. locking pins, 40. positioning pins, 41. horizontal guide rail sliding blocks.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figures 1 to 7, a kind of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device, has elevating function, energy
Enough to accommodate entire throttle resistance part completely, to improve efficiency of hunting leak, suction gun device 1 is designed using double suction rifle structure, disposably may be used
Leak test is carried out to two tubesheet holes.Suction gun device 1 mainly includes packet three parts: elevating mechanism 2, angle-adjusting mechanism 3
With quick-changing mechanism 4.The basic principle is that realizing angle adjustment by the transmission of synchronous belt 6, passed by synchronous belt 8 and 9 two-stage of lead screw
It is dynamic to realize elevating function.Simultaneously 10 lower end of suction gun have buffer spring 20, suction gun 10 rise to top and with tube sheet face contact
Afterwards, suction gun will continue to run under the driving of lifting motor 7, since suction gun 10 is limited by tube sheet, then can compress buffer spring 20,
The spring pressure that buffer spring 20 provides fits closely 10 top of suction gun with evaporator pipe sheet, in order to guarantee helium inspection in air-breathing
The air-tightness of suction gun 10 in process suction.Suction gun 10 is equipped with edge face sealing member 11, can also reduce suction while realizing sealing
Impact of the rifle to tube sheet, realizes soft contact.
Elevating mechanism 2 is installed in the rotating shaft upper flanges of angle-adjusting mechanism 3.Elevating mechanism 2 mainly includes motor
7, lead screw 9, suction gun 10, edge face sealing member 11, upper end cover 12, close switch 13, guide rail 14, band roller box 15, elevating mechanism pedestal
16, cable connector 17, rotating nuts 18, flange bearing 19, spring 20, feed screw nut 21, gas-tpe fitting 22, synchronous pulley 23,
The parts such as synchronous pulley 24, ball bearing 25, motor 7 by synchronous belt 8 transfer torque to lead screw 12, guide rail 14 is that center is provided with
The hollow cylinder of vertical direction guide groove, being equipped on guide rail 14 close to switch 13 prevents 18 excess of stroke of feed screw nut, feed screw nut
21 can move up and down under the driving of screw rod 9, realize the elevating function of suction gun 10.Meanwhile cable is also equipped on band roller box 15 and is connect
First 17, the connection for motor, encoder and limit switch and communication cable.
There are a rotating nuts 18 in 2 top lead screw of elevating mechanism, 9 end, can rotate with lead screw 12, when power off situations such as
When, it,, can be manually by suction gun by twisting rotating nuts 18 when entangling throttle resistance part if suction gun 10 is exactly in lifting state
10 withdraw.
Suction gun device 1 has angle regulating function, and suction gun device 1 is when detecting different tubesheet holes, the center of two suction guns 10
Line is different from the guide rail angle of check device, angle-adjusting mechanism 3 mainly include bearing (ball) cover 26, crossed roller bearing 27,
Synchronous pulley 28, pulley shaft 29, sliding bearing 30, angle-adjusting mechanism pedestal 31, synchronous belt 6, motor 5, motor driven belt wheel
32, the part such as band roller box 33 forms.3 driving motor 5 of angle-adjusting mechanism transmits torque by synchronous belt 6, and synchronous pulley 28 is logical
It crosses bolt directly to connect with elevating mechanism 2, and bears the axial force of vertical direction by crossed roller bearing 27.Angle adjusts machine
Structure 3 drives entire elevating mechanism 2 to rotate under the effect of motor 5, realizes the angle adjustment of suction gun device 1.Here angle adjustment
The form that right-angle reduction device can also be used in mechanism realizes the angle adjustment of suction gun.Band roller box 33 is equipped with 35 He of mechanical limiting mechanism
Origin switch 34, mechanical limiting mechanism 35 realized by an active block stop that can be swung within a certain angle, 2 pedestal of elevating mechanism
On have fixed stop.When elevating mechanism 2 moves to+180 position, active block stop swings to positive extreme position, and stops elevator
Structure continues to rotate forward；On the contrary when suction gun device elevating mechanism moves to -180 position, active block stop swings to cathode extreme position, and hinders
Gear elevating mechanism 2 continues to invert.Such angle-adjusting mechanism can realize 360 degree of all standing adjustment, and will not be because of by a side
Cable is caused to wind to consistent rotation.
Suction gun device quick-changing mechanism mainly includes suction gun device pedestal 36, rotary chuck 37, chuck fixed block 38, locking pin
39, the part such as positioning pin 40, horizontal guide rail sliding block 41 forms.Quick change construction is mainly realized to be filled with the mass spectrum inspection of high temperature gas cooled reactor helium
The fast and stable connection set.Horizontal guide rail sliding block 41 is mounted in check device, and horizontal guide rail sliding block 41 is fixed with 3 positioning pins
40 and 3 locking pins 39, corresponding pin hole is provided on suction gun device pedestal 36, and chuck fixed block 38 passes through rotary chuck and inhales
Gun apparatus pedestal 36 is bolted by 3, and rotary chuck 37 can be rotated around chuck fixed block 38, while be provided with kidney slot.Waist
The hole size in shape hole is variation, is releasing orientation in large aperture end, is locking state in small-bore end.Suction gun device 1
It, will by the positioning pin 40 of 1 pin hole of suction gun device alignment horizontal guide rail sliding block 41 when being quickly connected with horizontal guide rail sliding block 41
After locking pin 39 is inserted into dowel hole, stirs rotary chuck 37 and realize suction gun device 1 and manipulator locating device horizontal guide rail
Quick locking between sliding block 41.
Working principle of the present invention is as follows:
As shown in figure 8, control system is according to current suction gun real time position, meter after suction gun device is mounted in check device
Next tubesheet holes elapsed time minimal path to be detected is calculated, check device is rapid under the cooperation of suction gun angle-adjusting mechanism
Suction gun is moved to immediately below tubesheet holes to be checked.Since suction gun device is designed using double suction rifle structure, as shown in fig. 7, can be primary
Property leak tests are carried out to two tubesheet holes, two suction guns are laid out by the way of being spaced 1 tubesheet holes.Current instant position liter
The axis of descending mechanism will be directed at 2# tubesheet holes axle center, and suction gun detects 1# and 3# tubesheet holes simultaneously and rises patch after the completion of suction gun positioning
It closes tube sheet and seals, suction gun 1 and suction gun 2 are respectively aligned to 1# and 3# tubesheet holes and carry out air-breathing detection；If next tube sheet to be detected
When the number in hole is 4# and 6# tubesheet holes, high temperature gas cooled reactor heat-transfer pipe check device need to deliver suction gun by rotation and displacement movement
The axis of suction gun device elevating mechanism will be directed at 5# plate hole axle center, since high temperature gas cooled reactor heat-transfer pipe check device is sent out by device
Rotation has been given birth to, to have checked 4# and 6# heat-transfer pipe at this time, suction gun positioning need to reversely rotate respective angles by angle-adjusting mechanism, complete
Pairs of 4# and 6# heat-transfer pipe positioning.Starting machine vision assists suction gun positioning system at this time, is calculated in two suction guns by video camera
Heart point and the deviation for positioning tubesheet holes center, and the deviation is transmitted to Motor drive function module in host computer, motor connection
Conjunction movement eliminates suction gun position error before suction gun lifting；The rear lifting mechanism driving suction gun for completing auxiliary positioning task is whole
Lifting, until suction gun front end completely with the complete gluing, sealing of tubesheet holes to be detected.It, can according to such step and the path planned
Complete the inspection work of all heat-transfer pipes.
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 (9)
1. a kind of high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device, it is characterised in that: it has elevating function, can be complete
Entire throttle resistance part is accommodated entirely, and suction gun device (1) uses double suction rifle structure, disposably can carry out leakage inspection to two tubesheet holes
It looks into.
2. high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device according to claim 1, it is characterised in that: described
Suction gun device (1) mainly includes elevating mechanism (2), angle-adjusting mechanism (3) and quick-changing mechanism (4)；It is driven by synchronous belt (6)
It realizes angle adjustment, elevating function is realized by synchronous belt (8) and the transmission of lead screw (9) two-stage；Suction gun (10) lower end has slow
It rushes spring (20), suction gun (10) rises to top and with after tube sheet face contact, and suction gun will continue under the driving of lifting motor (7)
Operation, since suction gun (10) is limited by tube sheet, then can compress buffer spring (20), and the spring pressure that buffer spring (20) provides makes
Suction gun (10) top is obtained to fit closely with evaporator pipe sheet；Suction gun (10) is equipped with edge face sealing member (11), is realizing sealing
Impact of the suction gun to tube sheet can also be reduced simultaneously, realize soft contact.
3. high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device according to claim 2, it is characterised in that: described
Elevating mechanism (2) is installed in the rotating shaft upper flanges of angle-adjusting mechanism (3)；Elevating mechanism (2) mainly includes motor
(7), lead screw (9), suction gun (10), edge face sealing member (11), upper end cover (12), close switch (13), guide rail (14), band roller box
(15), elevating mechanism pedestal (16), cable connector (17), rotating nuts (18), flange bearing (19), spring (20), lead screw spiral shell
Female (21), gas-tpe fitting (22), synchronous pulley (23), synchronous pulley (24), ball bearing (25), motor (7) pass through synchronous belt (8)
Transfer torque to lead screw (12), guide rail (14) is the hollow cylinder that center is provided with vertical direction guide groove, and guide rail is pacified on (14)
Equipped with feed screw nut (18) excess of stroke is prevented close to switch (13), feed screw nut (21) can move up and down under the driving of screw rod (9),
Realize the elevating function of suction gun (10)；Meanwhile band roller box (15) on be also equipped with cable connector (17), for motor, encoder and
The connection of limit switch and communication cable.
4. high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device according to claim 3, it is characterised in that: described
Elevating mechanism (2) top lead screw (9) end has rotating nuts (18), can rotate with lead screw (12), when there is power blackout situation,
It,, can be manually by suction gun by twisting rotating nuts (18) when entangling throttle resistance part if suction gun (10) is exactly in lifting state
(10) it withdraws.
5. high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device according to claim 4, it is characterised in that: described
Suction gun device (1) has angle regulating function, and when detecting different tubesheet holes, the center of two suction guns (10) connects suction gun device (1)
Line is different from the guide rail angle of check device, angle-adjusting mechanism (3) include bearing (ball) cover (26), crossed roller bearing (27),
Synchronous pulley (28), pulley shaft (29), sliding bearing (30), angle-adjusting mechanism pedestal (31), synchronous belt (6), motor (5),
Motor driven belt wheel (32), band roller box (33)；Angle-adjusting mechanism (3) driving motor (5) transmits torque by synchronous belt (6),
Synchronous pulley (28) is directly connect with elevating mechanism (2) by bolt, and bears vertical direction by crossed roller bearing (27)
Axial force；Under angle-adjusting mechanism (3) is acted in motor (5), entire elevating mechanism (2) is driven to rotate, realizes suction gun device
(1) angle adjustment；Band roller box (33) is equipped with mechanical limiting mechanism (35) and origin switch (34), mechanical limiting mechanism (35)
Realize there is fixed stop on elevating mechanism (2) pedestal by a swingable active block stop.
6. high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device according to claim 5, it is characterised in that: described
When elevating mechanism (2) moves to+180 position, active block stop swings to positive extreme position, and elevating mechanism is stopped to continue to rotate forward；
On the contrary when suction gun device elevating mechanism moves to -180 position, active block stop swings to cathode extreme position, and stops elevating mechanism
(2) continue to invert；Such angle-adjusting mechanism can realize 360 degree of all standing adjustment, and will not be because of consistent rotation in a direction
Turn that cable is caused to wind.
7. high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device according to claim 6, it is characterised in that: described
Suction gun device quick-changing mechanism mainly includes suction gun device pedestal (36), rotary chuck (37), chuck fixed block (38), locking pin
(39), the part such as positioning pin (40), horizontal guide rail sliding block (41) forms；Quick change construction is mainly realized and high temperature gas cooled reactor helium mass spectrum
The fast and stable of check device connects；Horizontal guide rail sliding block (41) is mounted in check device, and horizontal guide rail sliding block (41) is fixed
There are 3 positioning pins (40) and 3 locking pins (39), is provided with corresponding pin hole, chuck fixed block on suction gun device pedestal (36)
(38) it passes through rotary chuck and is bolted with suction gun device pedestal (36) by 3, rotary chuck (37) can be around chuck fixed block
(38) it rotates, while being provided with kidney slot.
8. high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device according to claim 7, it is characterised in that: described
The hole size of kidney slot is variation, is releasing orientation in large aperture end, is locking state in small-bore end.
9. high temperature gas cooled reactor heat-transfer pipe helium mass spectrum leak detection suction gun device according to claim 7, it is characterised in that: described
When suction gun device (1) and horizontal guide rail sliding block (41) are quickly connected, suction gun device (1) pin hole is directed at horizontal guide rail sliding block
(41) positioning pin (40) after locking pin (39) is inserted into dowel hole, stirs rotary chuck (37) and realizes suction gun device (1)
With the quick locking between manipulator locating device horizontal guide rail sliding block (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574793.2A CN109461508B (en) | 2018-12-21 | 2018-12-21 | Helium mass spectrum leakage detection suction gun device for high-temperature gas cooled reactor heat transfer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574793.2A CN109461508B (en) | 2018-12-21 | 2018-12-21 | Helium mass spectrum leakage detection suction gun device for high-temperature gas cooled reactor heat transfer pipe |
Publications (2)
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