CN109490034A - Internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation - Google Patents
Internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation Download PDFInfo
- Publication number
- CN109490034A CN109490034A CN201811343177.6A CN201811343177A CN109490034A CN 109490034 A CN109490034 A CN 109490034A CN 201811343177 A CN201811343177 A CN 201811343177A CN 109490034 A CN109490034 A CN 109490034A
- Authority
- CN
- China
- Prior art keywords
- pullover
- seal nipple
- driving
- internal pressure
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation, solves original test and have to wait for sample dosage and decay in tolerance interval and can carry out for a long time, waiting for a long time, the low problem of test efficiency.The present invention includes pedestal, it is mounted on the base the bracket for installing fuel tube, it is arranged on bracket for placing the groove for tightening clamping cap of the pullover on fuel tube, it is mounted on the base the deflation pullover being located at groove on same central axes and for placing seal nipple, for driving the rotary components for tightening pullover rotation, for driving the linear drives component for tightening pullover and moving linearly along wherein axis direction.The present invention can carry out in hot cell, and without sample dosage, decaying can be tested for a long time, therefore substantially increase test efficiency, and the tight latching connector after automatic dismantling is reusable, reduces the yield of radioactive waste.
Description
Technical field
The present invention relates to post-irradiation examination technical fields, and in particular to after a kind of irradiation internal pressure explosion sample seal nipple from
Dynamic sealing device.
Background technique
Fuel assembly is the core component of nuclear reactor, and fuel assembly includes a large amount of fuel rods, and fuel rod clad is to prevent
First of safety curtain that fission product leaks, integrality are directly related to the safe operation of reactor.Fuel tube exists
The immense pressure of the swelling of inner fuel core and fission gas is born when reactor operation, pressure-resistant performance directly affects involucrum
The integrality of pipe, the explosion bulge test of tubing high temperature closed end internal pressure being capable of stress of the analog fuel cladding tubes under high temperature, condition of high voltage
State, therefore internal pressure explosion bulge test is that fuel assembly checks one of big event.
Since fuel rod internal pressure explosion bulge test is withstood up to more than 100MPa pressure, cladding tubes are sealed into key technology.
Traditional cladding tubes internal pressure explosion bulge test generally uses seal nipple to be sealed by Swagelok high pressure cutting ferrule, and sealing is by pulling
Hand getting is tightened seal nipple with manpower and is sealed.Since cladding tubes have radioactivity after irradiation, high-energy gamma ray can be to people
Member causes radiation injury, therefore the fuel tube after irradiating directly human contact cannot carry out installation and tighten sealing.Due to spoke
There is hot according to after-burning charge bar, original test has to wait for that sample dosage decays to for a long time in tolerance interval can be into
Row, waiting for a long time, test efficiency is low.
Summary of the invention
The technical problems to be solved by the present invention are: original test have to wait for sample dosage decay to for a long time it is acceptable
It can be carried out in range, waiting for a long time, the low problem of test efficiency is, and it is an object of the present invention to provide internal pressure explosion sample after a kind of irradiation
Seal nipple automatic sealing device can carry out in hot cell, and without sample dosage, decaying can be tested for a long time, therefore big
Test efficiency is improved greatly, and the tight latching connector after automatic dismantling is reusable, reduces the yield of radioactive waste.
The present invention is achieved through the following technical solutions:
Internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation, including pedestal, are mounted on the base and are used for
The bracket for installing fuel tube is arranged on bracket for being clamped the groove for the clamping cap being sleeved on fuel tube, peace
It is located on same central axes and is used to place the deflation pullover of seal nipple with groove on pedestal, tightens pullover for driving
The rotary components of rotation, for driving the linear drives component for tightening pullover and moving linearly along wherein axis direction.
Clamping cap need to be only sleeved on fuel tube in the present invention, then will be set with the fuel tube of clamping cap
It is placed on bracket, is connected to clamping cap in groove, while seal nipple being placed on and is tightened in pullover, pass through linear drives
Component driver tightens pullover to the movement of the direction of clamping cap, promotes clamping cap to extend into seal nipple, finally by rotation group
Pullover is tightened in part rotation, and then rotates with dynamic seal joint, realizes the sealed connection between seal nipple and fuel tube.
Sealed connection mode in the present invention is all made of mechanical completion, and the disassembly and installation of seal nipple is all not necessarily to manually grasp
Make, avoids injury of the high-energy gamma ray to personnel after irradiation, thus, without sample do.se fall to range human-acceptable
It is interior, the waiting time of disassembly and installation is shortened, the seal nipple for greatling improve test efficiency, also, disassembling is without taking
Out, it can also reuse, reduce the yield of radioactive waste, effect is very significant.
Further, the linear drives component includes the loading plate being mounted on the base by linear guides, driving carrying
The mobile cylinder of plate；The deflation pullover is mounted on loading plate by mounting rack.
Further, the rotary components include being mounted on sequentially connected servomotor, gear reducer and torsion on loading plate
Sensor；The rotary force for tightening pullover is transmitted by torsion sensor.By the setting of the above results, can effectively revolve
Turn during detect torque, avoid the excessive damage seal nipple of torsion and tight lock tube, at the same also avoid torsion it is too small cause it is close
The bad problem of sealing property.
Further, the torsion sensor is connect by transmission gear with pullover is tightened.The quantity of the groove is two,
The quantity for tightening pullover corresponding with groove is also two, and the transmission gear includes the driving wheel connecting with torsion sensor,
Tighten the follower that pullover is connect with two respectively with two, the driving wheel is located between two followers, for driving two
A follower rotation.When wherein driving wheel is along rotating clockwise, other two follower is driven by driving wheel towards the inverse time
The rotation of needle direction can effectively realize the sealing and disassembly of two fuel tubes simultaneously, improve efficiency.
Further, described tight in order to preferably realize the sealed connection on fuel can between clamping cap and seal nipple
Contracting pullover is arranged close to the mounting rack side of groove, which then installs connects for holding out against to tighten to seal in pullover
Top, and the top cylinder of the top movement of driving of head.
In order to avoid clamping cap deviates from groove during rotatory sealing, and then fuel tube is caused to deviate from bracket, institute
State the overturning pressing plate being additionally provided on pedestal for being pressed on fuel tube in the groove of bracket, and driving overturning pressing plate
The driving motor overturn.
Compared with prior art, the present invention having the following advantages and benefits:
1, the present invention can carry out in hot cell, and without sample dosage, decaying can be tested for a long time, therefore be greatly improved
Test efficiency, and the tight latching connector after automatic dismantling is reusable, reduce the yield of radioactive waste；
2, the invention avoids testing crews manually to carry out the locking of sample sealing device and disassembly, greatly reduce personnel by
According to dosage, radiation injury is avoided, greatly improves safety.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the structural schematic diagram tightened at pullover position in the present invention.
Fig. 3 is the structural schematic diagram overturn at press plate position in the present invention.
Label and corresponding parts title in attached drawing:
1- pedestal, 2- clamping cap, 3- seal nipple, 4- are close to switch, 5- linear guides, 6- are top, 8- servo motor, 9-
The top cylinder of speed reducer, 10-, 11- torsion sensor, 12- transmission gear, 13- overturning pressing plate, 14- fuel tube, 15- are tight
Contracting pullover, 16- driving motor.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
Internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation, including pedestal 1, are mounted on pedestal 1 and use
In the bracket of installation fuel tube 14, it is arranged on bracket for placing the compression for tightening pullover on fuel tube 14
The groove of cap 2 is mounted on the deflation pullover 15 for being located on same central axes and be used to place seal nipple 3 on pedestal 1 with groove,
For driving the rotary components for tightening pullover 15 and rotating, tighten what pullover 15 moved linearly along wherein axis direction for driving
Linear drives component.
It only needs to tighten pullover 15 by linear drives Component driver in the present embodiment and be moved along wherein axis direction straight line
It is dynamic, and then contact the seal nipple 3 tightened in pullover 15 with the clamping cap 2 on fuel tube 14, promote on clamping cap 2
External screw thread is extend at the internal screw thread position of seal nipple 3, as depicted in figs. 1 and 2, is then restarted rotary components rotation and is tightened
Pullover 15, the rotation with dynamic seal joint 3 promote the external screw thread of clamping cap 2 and the internal screw thread of seal nipple 3 to screw, and realize installation
The effect of sealing.When disassembly is desired, reverse operating rotary components and linear drives component are only needed.
Structure setting through this embodiment can be not necessarily to manual hand manipulation, effectively make seal nipple 3 and fuel can
Installing and dismounting between pipe 14 can carry out in hot cell, and without sample dosage, decaying can be tested for a long time, therefore be mentioned significantly
High test efficiency, and the tight latching connector after automatic dismantling is reusable, reduces the yield of radioactive waste.
Also, the present invention can be realized the sealing of long 100mm~200mm cladding tubes, binding site accurate positioning, concentricity
Unanimously, tightening driving torque in the present invention can be adjustable within the scope of 10Nm~100Nm, and revolving speed is in 100r/min~500r/
It is adjustable within the scope of min, the involucrum seal of tube not less than 200MPa pressure can be born, effect is very significant.
Embodiment 2
The present embodiment has advanced optimized the structure of rotary components and linear drives component on the basis of embodiment 1, tool
Body is provided that
The linear drives component includes the loading plate being mounted on pedestal 1 by linear guides 5, and driving loading plate is mobile
Cylinder；The deflation pullover 15 is mounted on loading plate by mounting rack, as shown in Figure 1.The rotary components include installation
Sequentially connected servo motor 8, speed reducer 9 and torsion sensor 11 on loading plate；The rotary force for tightening pullover 15 is logical
Cross the transmitting of torsion sensor 11.
Tightening pullover 15 in the present embodiment can be directly connected to the torsion sensor 11, can also pass through transmission gear 12
Connection can effectively increase the quantity of the fuel tube 14 of synchronous disassembly and installation when connecting by transmission gear 12.
It provides to tighten using the realization of transmission gear 12 in the present embodiment and be connected between pullover 15 and the torsion sensor 11
Concrete mode, i.e., set two for the quantity of groove, meanwhile, the quantity for tightening pullover 15 corresponding with groove is also configured as
Two, as shown in Figure 1, the corresponding deflation pullover 15 of a groove.
The transmission gear 12 includes that a driving wheel and two followers, the driving wheel are connect with torsion sensor 11,
Two followers are connect with two deflation pullovers 15 respectively, as shown in Figure 1, the driving wheel is arranged between two followers, when
When driving wheel rotates, two follower rotations are driven.
Embodiment 3
The present embodiment and the difference of embodiment 1 or embodiment 2 are, in order to improve the validity and stabilization of installation and removal
Property, top 6 and overturning pressing plate 13 are also added in the present embodiment, are specifically provided that
The mounting rack side tightened pullover 15 and be arranged close to groove, which then installs for holding out against
Tighten top 6 of seal nipple 3 in pullover 15, and the mobile top cylinder 10 of driving top 6.In order to facilitate deflation pullover 15
The installation of interior seal nipple 3 is additionally provided with a groove notch on the deflation pullover 15, and the setting of the groove notch is as schemed
Shown in 3, seal nipple 3 is placed on by groove notch more convenient manipulator and is tightened in pullover 15, as depicted in figs. 1 and 2.
The overturning pressing plate 13 for being pressed on fuel tube 14 in the groove of bracket is additionally provided on the pedestal 1,
And the driving motor 16 that driving overturning pressing plate 13 is overturn, as shown in figures 1 and 3.
The specific installation process of the present embodiment is as follows:
Step 1: clamping cap 2 and Swagelok high pressure cutting ferrule are sealed in fuel can respectively by manipulator by testing crew
Pipe 14 is then placed on bracket for fixing, and clamping cap 2 is connected in the groove of bracket at this time, as depicted in figs. 1 and 2.
Step 2: driving motor 16 drives overturning pressing plate 13 to compress fuel tube 14.
Step 3: the groove notch for making deflation pullover 15 is upward, seal nipple 3 is put by groove notch by manipulator
Enter to tighten in pullover 15.
Step 4: linear drives Component driver tightens pullover 15 to the movement of the direction of clamping cap 2, enter clamping cap 2 close
Sealing joint 3 stops movement when the screw thread mouth between clamping cap 2 and seal nipple 3 is engaged.
Step 5: top cylinder 10 drives top 6 to the movement of the direction of seal nipple 3, since 3 tail portion of seal nipple has one
Taper hole promotes the taper hole on top 6 lock sealing connector 3.Seal nipple 3 is from deflation when can effectively avoid rotation by the setting
It falls off in groove notch on pullover 15.
Step 6: the servo motor 8 in starting rotary components, is driven consequent torque by speed reducer 9 and passes to torsion biography
Sensor 11, then driven by torsion sensor 11 and tighten the rotation of pullover 15, realize screwing between seal nipple 3 and clamping cap 2
Seal operation.
11 real-time monitoring clamping cap 2 of torsion sensor and torsion suffered by seal nipple 3 can be passed through in the step.It turns round
Square value can be set in system control interface, and when torque value reaches setting value, servo motor 8 stops operating, and indicate clamping cap 2
It has been tightened between seal nipple 3.
In the present embodiment, similarly, setting torque is reversed when rotating for the disassembly after cladding tubes specimen test.
Embodiment 4
The present embodiment and the difference of embodiment 3 are, increase in the present embodiment and are provided with close to switch 4, the close switch 4
There are two settings, one of to be arranged in groove, another is arranged at 12 position of transmission gear.
The sealing of fuel tube 14 start at the end of, will should first tighten pullover 15 under the action of no top 6
Groove notch upward, prevents seal nipple 3 from placing and falls with when taking out, can ensure groove notch court when triggering close to switch 4
On, be then log out it is top, thus realize seal nipple 3 tighten 15 groove of pullover in placement and taking-up.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (7)
1. internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation, which is characterized in that including pedestal (1), installation
For installing the bracket of fuel tube (14) on pedestal (1), it is arranged on bracket and is sleeved on fuel tube for being clamped
(14) groove of the clamping cap (2) on is mounted on pedestal (1) and is located on same central axes with groove and connects for placing sealing
The deflation pullover (15) of head (3) tightens pullover (15) edge for driving for driving the rotary components for tightening pullover (15) rotation
Wherein axis direction linear movement linear drives component.
2. internal pressure explosion sample seal nipple automatic sealing device, feature exist after a kind of irradiation according to claim 1
In the linear drives component includes the loading plate being mounted on pedestal (1) by linear guides (5), and driving loading plate is mobile
Cylinder；The deflation pullover (15) is mounted on loading plate by mounting rack.
3. internal pressure explosion sample seal nipple automatic sealing device, feature exist after a kind of irradiation according to claim 2
In the rotary components include being mounted on sequentially connected servo motor (8), speed reducer (9) and torsion sensor on loading plate
(11)；The rotary force for tightening pullover (15) is transmitted by torsion sensor (11).
4. internal pressure explosion sample seal nipple automatic sealing device, feature exist after a kind of irradiation according to claim 3
In the torsion sensor (11) is connect by transmission gear (12) with pullover (15) are tightened.
5. internal pressure explosion sample seal nipple automatic sealing device, feature exist after a kind of irradiation according to claim 4
In the quantity of the groove is two, and the quantity for tightening pullover (15) corresponding with groove is also two, the transmission gear
(12) include the driving wheel connecting with torsion sensor (11) and two connect respectively with two deflation pullovers (15) it is passive
Wheel, the driving wheel are located between two followers, for driving two follower rotations.
6. internal pressure explosion sample seal nipple automatic sealing device, feature exist after a kind of irradiation according to claim 2
In the mounting rack side tightened pullover (15) and be arranged close to groove, which then installs tight for holding out against
Top (6) of contracting pullover (15) interior seal nipple (3), and the top cylinder (10) for driving top (6) mobile.
7. internal pressure explosion sample seal nipple automatic sealing device, feature exist after a kind of irradiation according to claim 1
In, the overturning pressing plate (13) for being pressed on fuel tube (14) in the groove of bracket is additionally provided on the pedestal (1),
And the driving motor (16) that driving overturning pressing plate (13) is overturn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343177.6A CN109490034A (en) | 2018-11-13 | 2018-11-13 | Internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343177.6A CN109490034A (en) | 2018-11-13 | 2018-11-13 | Internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109490034A true CN109490034A (en) | 2019-03-19 |
Family
ID=65695612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811343177.6A Pending CN109490034A (en) | 2018-11-13 | 2018-11-13 | Internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109490034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115824826A (en) * | 2023-01-29 | 2023-03-21 | 中国原子能科学研究院 | Internal pressure test system and internal pressure test method for radioactive tubular sample |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201239950Y (en) * | 2008-08-01 | 2009-05-20 | 磐吉奥(湖南)工业有限公司 | Screwed joint screwing-in machine |
| CN106425431A (en) * | 2016-09-19 | 2017-02-22 | 深圳兴通成机电技术有限公司 | Full-automatic threaded fitting assembling device and process |
| CN108561651A (en) * | 2018-03-13 | 2018-09-21 | 西安理工大学 | A kind of pipe joint arrangement of automatic butt |
-
2018
- 2018-11-13 CN CN201811343177.6A patent/CN109490034A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201239950Y (en) * | 2008-08-01 | 2009-05-20 | 磐吉奥(湖南)工业有限公司 | Screwed joint screwing-in machine |
| CN106425431A (en) * | 2016-09-19 | 2017-02-22 | 深圳兴通成机电技术有限公司 | Full-automatic threaded fitting assembling device and process |
| CN108561651A (en) * | 2018-03-13 | 2018-09-21 | 西安理工大学 | A kind of pipe joint arrangement of automatic butt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115824826A (en) * | 2023-01-29 | 2023-03-21 | 中国原子能科学研究院 | Internal pressure test system and internal pressure test method for radioactive tubular sample |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109490034A (en) | Internal pressure explosion sample seal nipple automatic sealing device after a kind of irradiation | |
| US20100266083A1 (en) | Method and system for simultaneous irradiation and elution capsule | |
| CN203241303U (en) | Detecting device for detecting blasting performance of nuclear zirconium alloy pipe material | |
| CN101762344A (en) | High-temperature and high-pressure sealing device for small optical fiber sensor test | |
| WO2010084122A1 (en) | Method and arrangement for gas-tightly enclosing at least one fuel rod | |
| CN209587469U (en) | A kind of water pipe fast cap | |
| CN109606744B (en) | Device for automatically pre-tightening solar wing compression rod | |
| CN103114821B (en) | Under a kind of deep-well radiation environment, pipeline shears remote maintaining equipment and service procedure thereof | |
| CN201736055U (en) | Automatic clamping device of outer rabbet at front end cover of turning starting motor | |
| CN207521991U (en) | One kind is pneumatically from centering rotatable chuck body | |
| US4693277A (en) | Remotely operable tool for setting plugs into heat exchanger tubes | |
| CN202547847U (en) | Intelligent moment detector | |
| CN207971867U (en) | A kind of steering rack positioning device that can improve rack positioning accuracy | |
| CN206945435U (en) | Silicone pipes maximum drawbar pull laboratory holder | |
| CN111341476A (en) | Device and method for rotary pressing positioning spring of nuclear fuel rod | |
| CN201249346Y (en) | A connecting rod wreching screw tool | |
| CN110039237B (en) | GIL's fixed three post insulators welding set | |
| CN207104936U (en) | A kind of multi-functional clamping jaw of radioactive source | |
| CN209102518U (en) | A kind of reinforced bar mechanical connector tensile strength test device | |
| CN101298134A (en) | Connecting rod bolt screwing device | |
| CN203229455U (en) | Sealing device for X-ray tube cathode assembly and glass bulb | |
| CN216524784U (en) | Safety valve calibration device | |
| CN111370155A (en) | Miniaturized material irradiation device and use method | |
| CN220647232U (en) | Multifunctional binding head for repairing large-caliber pipeline by ultraviolet light curing | |
| CN107243917A (en) | A kind of multi-functional clamping jaw of radioactive source and its application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |
|
| RJ01 | Rejection of invention patent application after publication |