CN209465844U - A kind of welding booth for filling helium plug-hole bonding machine for fuel rod - Google Patents
A kind of welding booth for filling helium plug-hole bonding machine for fuel rod Download PDFInfo
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- CN209465844U CN209465844U CN201920161113.8U CN201920161113U CN209465844U CN 209465844 U CN209465844 U CN 209465844U CN 201920161113 U CN201920161113 U CN 201920161113U CN 209465844 U CN209465844 U CN 209465844U
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- welding
- chamber
- fuel rod
- welding gun
- hole
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Abstract
The utility model relates to fuel rod technical fields, it is therefore an objective to provide a kind of welding booth that helium plug-hole bonding machine is filled for fuel rod；Technical solution is: including pedestal, closed welding chamber is equipped in pedestal, left end of the base side wall is equipped with the welding gun guide cylinder being connected to welding chamber, right end sidewalls are equipped with the cladding tubes clamp system being connected to welding chamber, top is equipped with the upper observation window of observable welding chamber, bottom is equipped with gas control block；Welding gun insulation sleeve, welding gun sealing ring are equipped in welding gun guide cylinder, cladding tubes sealing ring is equipped in cladding tubes clamp system, welding gun guide cylinder and the involucrum pipe-in-pipe in cladding tubes clamp system are concentric, air cavity is equipped in gas control block, gas control block side wall is arranged with the vacuum drawn interface being connected to air cavity, vacuum measurement interface, fills helium interface, exhaust port, and vacuum drawn interface vacuum measurement interface, fills helium interface, is equipped with the control valve for cutting off/being connected gas circuit in exhaust port.The utility model leakproofness is strong, can be used in fuel rod and fills the welding of helium plug-hole.
Description
Technical field
The utility model relates to fuel rod technical fields, and in particular to a kind of weldering that helium plug-hole bonding machine is filled for fuel rod
Connect room.
Background technique
Fuel rod is the core component for constituting fuel assembly cluster, for generating thermal energy and passing it to coolant, packet
Hold fuel and fission product.Fuel rod is mainly made of cladding tubes, upper end plug, lower end plug and pellet.Pellet is set to involucrum
Inside pipe, between upper end plug and lower end plug plug and cladding tubes both ends, the end plug of fuel rod is mainly used to seal fuel rod.Fuel stack
Part longevity of service in reactor, for a long time by neutron irradiation, high temperature and pressure and corrosiveness.And in order to reduce reactor fortune
The inside and outside differential pressure of cladding tubes during row, prevent the creep of cladding tubes from collapsing reduces with the heat transfer property of fuel rod, in fuel rod
Upper end is plugged with an aeration aperture, to be filled with the pure helium of 2~3Mpa into pipe, is then sealed plug-hole spot welding.During this,
It needs to fill helium plug-hole bonding machine using to fuel rod, and the work welded mainly is completed in closed welding booth.
Summary of the invention
The utility model aim is to provide a kind of welding booth for filling helium plug-hole bonding machine for fuel rod.
To achieve the above object, the technical scheme adopted by the utility model is a kind of fill the weldering of helium plug-hole for fuel rod
The welding booth to pick, including pedestal, the pedestal is interior to be equipped with closed welding chamber, and the left end of the base side wall is equipped with and welding chamber
Welding gun guide cylinder, the right end sidewalls of connection are equipped with the cladding tubes clamp system being connected to welding chamber, top and weld equipped with observable
Upper observation window, the sealed bottom of chamber are fixed with gas control block；Welding gun insulation sleeve, welding gun sealing ring are equipped in the welding gun guide cylinder,
Cladding tubes sealing ring, the cladding tubes in the welding gun guide cylinder and cladding tubes clamp system are equipped in the cladding tubes clamp system
Casing is concentric, be equipped with the air cavity being connected to welding chamber in the gas control block, and the gas control block side wall is arranged with to be connected to air cavity
Vacuum drawn interface, vacuum measurement interface fill helium interface, exhaust port, and the vacuum drawn interface, fills vacuum measurement interface
The control valve for cutting off/being connected gas circuit is equipped in helium interface, exhaust port.
Preferably, the involucrum pipe-in-pipe right end outer sheath, which is equipped with, drives the piston moved left and right by driving device, described
Welding chamber right end sidewalls are provided with the end plug hole concentric with involucrum pipe-in-pipe, and the cladding tubes sealing ring is located at end plug hole and involucrum
Between pipe-in-pipe.
Preferably, the piston jacket is equipped with the driving chamber being adapted to piston, and the piston driving chamber and right end of the base are solid
Fixed connection, and there are the stomatas connecting with compressed gas source for left and right ends.
Preferably, involucrum pipe-in-pipe right end is taper hole.
Preferably, the left end of the base side wall is fixedly connected with welding gun adjustment seat, and welding gun adjustment seat upper end is equipped with can
Welding gun fixed plate, left end side wall and the right end sidewalls to horizontally slip are provided with through-hole, are fitted with adjusting screw rod in the through-hole,
It is plugged in the middle part of the adjusting screw rod in the middle part of welding gun fixed plate and constitutes lead screw transmission mechanism.
Preferably, adjusting screw rod left end is fixed with adjusting handle.
Preferably, welding gun adjustment seat upper end is provided with the sliding slot being laterally extended, and the welding gun fixed plate is arranged in cunning
In slot.
Preferably, the control valve includes valve chamber, spool, the valve chamber inner sidewall be equipped with the air flue be connected with welding chamber,
Bottom is connected to base bottom, and the spool is concentric with air flue and one end of face air flue is equipped with cushion, the spool sidewall sheath
It is moved left and right equipped with sealing ring and being driven by the cylinder.
Preferably, the cushion is T-type rubber pad, and one end of the spool face air flue is equipped with the circle for fixing cushion
Hole.
Preferably, the pedestal front end is equipped with the preceding observation window of observable welding chamber, rear end is equipped with observable welding chamber
Observation window afterwards.
The advantageous effects of the utility model are: being equipped with closed welding chamber in pedestal, left and right sidewall is arranged with and welds
Connect welding gun guide cylinder, the interior involucrum pipe clamp equipped with cladding tubes sealing ring equipped with welding gun insulation sleeve and welding gun sealing ring of chamber connection
Tight mechanism, top are equipped with the upper observation window of observable welding chamber, bottom is equipped with gas control block；To be able to achieve welding gun and weld chamber
It is tightly connected, the sealed connection of cladding tubes and welding chamber.Air cavity is equipped in gas control block and side wall be arranged with it is being connected to air cavity and
Vacuum drawn interface, vacuum measurement interface equipped with switch valve fill helium interface, exhaust port, true to the pumping of welding chamber to realize
Sky, vacuum measurement, the discharge for being filled with and welding exhaust gas of helium.Therefore the utility model leakproofness is strong, can be used in fuel
Stick fills the welding of helium plug-hole.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the face the A-A schematic diagram of Fig. 2；
Fig. 4 is the face the B-B schematic diagram of Fig. 3；
Fig. 5 is the right view of the utility model.
Specific embodiment
Below with reference to the attached drawing 1~5 of the utility model, to the technical scheme in the embodiment of the utility model carry out it is clear,
It is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
A kind of welding booth for filling helium plug-hole bonding machine for fuel rod, including pedestal made of metal 1, the base
It is equipped with closed welding chamber 2 in seat 1, that is, is provided with the cavity sealed everywhere in pedestal 1.1 left end of pedestal
Side wall is equipped with the welding gun guide cylinder 3 being connected to welding chamber 2, right end sidewalls are equipped with the cladding tubes clamp system being connected to welding chamber 2,
Top is equipped with the upper observation window 4 of observable welding chamber 2, bottom is equipped with gas control block 5.Specifically, the left end of pedestal 1 is provided with confession
The hole that welding gun guide cylinder 3 is inserted into, weldering chamber guide cylinder 3 is hollow guide cylinder, and one end is connected to welding chamber 2, one end and pedestal 1
Lateral wall is fixed and is tightly connected by modes such as welding, bonding, sealing flanges, is connected in the present invention by sealing flange
It connects.It is appreciated that the front end of welding gun guide cylinder 3 is provided with the welding gun insulation sleeve 6 for insulating with welding gun, prevent welding gun from being leaked out
Electrical conduction to welding chamber 2；Welding gun sealing ring 7 is set in the right end of welding gun insulation sleeve 6, so that welding gun is in insertion welding chamber 2
Gap between energy Butt welding gun and welding gun guide cylinder 3 is sealed.
Likewise, the right end of pedestal 1 is by sealing flange fixed seal connection cladding tubes clamp system, wherein involucrum pipe clamp
The 9 right end outer sheath of involucrum pipe-in-pipe of tight mechanism, which is equipped with, drives the piston 15 moved left and right by driving device, and the welding chamber 2 is right
End side wall is provided with the end plug hole 16 concentric with involucrum pipe-in-pipe 9, and end plug hole 16 is adapted to the end plug of fuel rod, to fuel rod
End plug positioned.Right end for the quick insertion of square cladding tubes, involucrum pipe-in-pipe 9 is set as taper hole.Piston 15 can be by
The driving of the drivers such as electromagnetic drive, screw rod, electric putter, air pressure moves left and right.In the present invention, preferably air pressure drives,
Specifically are as follows: the driving chamber 17 being adapted to piston 15, the piston driving chamber 17 and 1 right end of pedestal are arranged with outside the piston 15
It is fixedly connected, and left end, there are the stomata A31 connecting with compressed gas source, stomata B30 for right end.It is understood that in piston 15
Sidewall sheath be equipped with sealing ring, move left and right piston 15 can in driving chamber 17 under the influence of air pressure.The end plug hole 16
Cladding tubes sealing ring 8 is provided between involucrum pipe-in-pipe 9, when being inserted into welding chamber 2 to cladding tubes end plug, to cladding tubes and
It is sealed between involucrum pipe sleeve 9.It should be understood that the welding gun guide cylinder 3 and the cladding tubes in cladding tubes clamp system
Casing 9 is concentric, to ensure that welding gun can carry out plug-hole welding to cladding tubes end plug.
The upper observation window 4 on 1 top of pedestal includes the peep hole being connected to welding chamber 2, and the outer end sealing of peep hole is fixed with
Transparent plate, such as tempered glass, organic glass, preferably tempered glass, and sealed using sealing flange, facilitating observation
While welding the situation inside chamber 2, guarantee the leakproofness of welding chamber 2.For convenience of to the feelings observed from the front in welding chamber 2
Condition is provided with preceding observation window 29 identical with upper observation window 4 in the front end of pedestal 1, at the same also the rear end of pedestal 1 be provided with
Observation window 32 after upper observation window 4 is identical.It, can be in practice to realize the situation in comprehensive observation welding chamber 2
Magnifying glass is set immediately ahead of preceding observation window 29, light source is set in the rear end of rear observation window 32, it is ensured that the precision of plug-hole welding.
Gas control block 5 is fixed on the underface face of pedestal 1, and is tightly connected with the lower end surface of pedestal 1, similarly can be weldering
It connects and is either fixed by modes such as sealing hair orchids, and be equipped with the air cavity 10 being connected to welding chamber 2 in the gas control block 5, also
It is to say, air cavity 10 and welding chamber 2 form a closed cavity.In the present invention, using in air cavity 10 and welding
It is fixedly installed the link block that a hollow outer cover is equipped with sealing ring between chamber 2, realize air cavity and welds the sealing company of chamber 2
It connects.5 side wall of gas control block is arranged with the vacuum drawn interface 11 being connected to air cavity 10, vacuum measurement interface 12, fills helium interface
13, exhaust port 14, the vacuum drawn interface 11, vacuum measurement interface 12 fill helium interface 13, are equipped in exhaust port 14
For cutting off/being connected the control valve of gas circuit.For convenience of the processing of gas control block 5, this four interfaces set up separately in the left and right of gas control block 5 two
Side wall, control valve can be solenoid valve, hand-operated valve, pneumatic operated valve etc., can be realized being switched on and off for each interface and exterior line
?.Vacuum is extracted to welding chamber 2 and is cut off true, it is understood that can be controlled by control valve on vacuum drawn interface 11
Empty pump takes, and can control vacuum gauge by the control valve of vacuum measurement interface 12 and weld being switched on and off for chamber 2, by filling helium
The control valve of interface 13 can control being filled with and cutting off for helium, can control welding chamber 2 by the control valve of exhaust port 14
Exhaust gas discharge and cutting.When all control valves are closed, weld chamber 2 and air cavity 10 form one be isolated from the outside completely it is close
Seal cavity.
For the leakproofness for ensuring all control valves, control valve is pneumatic operated valve in the present invention, specifically are as follows: the control
Valve processed includes valve chamber 23, spool 24, and 23 inner sidewall of valve chamber is equipped with 1 bottom of air flue 25, bottom and pedestal be connected with welding chamber 2
End connection, the spool 24 is concentric with air flue 25 and one end of face air flue 25 is equipped with cushion 26, and 24 side wall of spool is arranged
There is sealing ring and is moved left and right by cylinder 28.That is, vacuum drawn interface 11, vacuum measurement interface 12, fill helium interface 13,
Such pneumatic operated valve is provided in exhaust port 14.The cushion 26 is T-type rubber pad, the 24 face air flue 25 of spool
One end is equipped with the circular hole 27 for fixing cushion 26, further to improve the air-tightness of control valve in the off state.
Further, it is adjusted for convenience of the welding electrode of welding gun, the 1 left end side wall of pedestal is fixedly connected with welding gun adjusting
Seat 18,18 upper end of welding gun adjustment seat are provided with the sliding slot 22 being laterally extended, the welding gun that adaptation can horizontally slip in sliding slot 22
Fixed plate 19.Welding gun fixed plate 19 can be driven by linear actuator, such as hydraulic cylinder, pneumatic cylinder, electric putter are, it is preferable to use silk
Linkage, high transmission accuracy are manually adjustable.That is, left end side wall and right end sidewalls are provided in the welding gun adjustment seat 18
Through-hole is fitted with adjusting screw rod 20 in the through-hole, is plugged in the middle part of welding gun fixed plate 19 and constitutes in the middle part of the adjusting screw rod 20
Lead screw transmission mechanism.The position for manually adjusting welding gun for convenience is fixed with adjusting handle 21 in 20 left end of adjusting screw rod.
The operation principle and process of the utility model:
In use, first gas control block 5 is fixed on the workbench of bonding machine, and by vacuum drawn interface 11 and external
Vacuum pump set be connected, vacuum measurement interface 12 be connected with the vacuum gauge interface being electrically connected by welding machine controller, fill helium interface 13 and
Pure helium source outlet be connected, exhaust port 14 can directly be vented and also be connected with aspiration pump, while all control valves with
The controller connect is electrically connected, and original state is beginning state.
When being welded, light source is set in the rear end of rear observation window 32, then welding gun is inserted into welding gun guide cylinder 3, it is interior
And welding gun is fixed in welding gun fixed plate 19, adjusting handle 21 is rotated, is observed through preceding observation window 29, upper observation window 4, makes to weld
Pole is in welding chamber 2；Then it will be positioned in fuel rod end plug insertion end consent 16 by external feed device, then given
17 stomata B30 of driving chamber gas supply, stomata A31 are connected to gas source air return end, and driving piston 15 moves to left, and drive involucrum pipe-in-pipe 9 left
It moves, to squeeze cladding tubes sealing ring 8, the gap between cladding tubes and involucrum pipe-in-pipe 9 is carried out while clamping cladding tubes
Sealing.It usually is arranged concentrically auxiliary clamping device in the right end of involucrum pipe-in-pipe 9, such as pneumatic triangle chuck can press from both sides automatically
Clamping device tight and that axis offset will not be made.
The control valve for finally opening vacuum drawn interface 11 extracts vacuum to welding chamber 2 and air cavity 10；Reach setting time
Afterwards, the control valve of vacuum drawn interface 11 is closed, the control valve of vacuum measurement interface 12 is opened, carries out the measurement of vacuum degree；Such as
Lower than setting vacuum, then vacuumized；Such as reach standard, then close the control valve of vacuum measurement interface 12, unlatching is filled helium and connect
Control valve in mouth 13 fills the helium of preset pressure to welding chamber 2, air cavity 10 and cladding tubes, closes fill helium interface 13 after the completion
Control valve.By amplification sem observation before observation window 29, rotate adjusting handle 21, when welding gun welding electrode fill in fuel rod end plug
In aeration aperture, then starts welding gun and carry out plug-hole welding.After the completion, the control valve for opening exhaust outlet 14 is exhausted.Then more
Change welding, the welding of cladding tubes progress next time.Wherein it should be noted that vacuum drawn interface 11, vacuum measurement interface 12,
Fill helium interface 13, the movement of exhaust port 14 is all that individually, cannot move at the same time, therefore need to carry out when doing control program
Interlocking.
In the description of the present invention, it should be understood that term " counterclockwise ", " clockwise " " longitudinal direction ", " transverse direction ",
The orientation of the instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model, rather than indicates
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.
Claims (10)
1. a kind of welding booth for filling helium plug-hole bonding machine for fuel rod, including pedestal (1), it is characterised in that: the pedestal (1)
It is interior be equipped with closed welding chamber (2), pedestal (1) the left end side wall be equipped with welding chamber (2) be connected to welding gun guide cylinder (3),
Right end sidewalls are equipped with the cladding tubes clamp system being connected to welding chamber (2), top is equipped with the upper observation window of observable welding chamber (2)
(4), sealed bottom is fixed with gas control block (5)；
It is equipped with welding gun insulation sleeve (6), welding gun sealing ring (7) in the welding gun guide cylinder (3), is set in the cladding tubes clamp system
Have cladding tubes sealing ring (8), the welding gun guide cylinder (3) and the involucrum pipe-in-pipe (9) in cladding tubes clamp system are concentric, described
The air cavity (10) being connected to welding chamber (2) is equipped in gas control block (5), gas control block (5) side wall is arranged with air cavity (10) even
Logical vacuum drawn interface (11), fills helium interface (13), exhaust port (14), the vacuum drawn at vacuum measurement interface (12)
Interface (11), vacuum measurement interface (12), fill in helium interface (13), exhaust port (14) be equipped with for cut off/gas circuit is connected
Control valve.
2. the welding booth according to claim 1 for filling helium plug-hole bonding machine for fuel rod, it is characterised in that: the involucrum
Pipe-in-pipe (9) right end outer sheath, which is equipped with, drives the piston (15) moved left and right, welding chamber (2) right end sidewalls by driving device
It is provided with the end plug hole (16) concentric with involucrum pipe-in-pipe (9), the cladding tubes sealing ring (8) is located at end plug hole (16) and involucrum
Between pipe-in-pipe (9).
3. the welding booth according to claim 2 for filling helium plug-hole bonding machine for fuel rod, it is characterised in that: the piston
(15) driving chamber (17) being adapted to piston (15), the piston driving chamber (17) and the fixed company of pedestal (1) right end are arranged with outside
It connects, and there are the stomatas connecting with compressed gas source for left and right ends.
4. the welding booth according to any one of claims 1 to 3 for filling helium plug-hole bonding machine for fuel rod, feature exist
In: involucrum pipe-in-pipe (9) right end is taper hole.
5. the welding booth according to claim 1 for filling helium plug-hole bonding machine for fuel rod, it is characterised in that: the pedestal
(1) left end side wall is fixedly connected with welding gun adjustment seat (18), and welding gun adjustment seat (18) upper end is equipped with the weldering that can be horizontally slipped
Rifle fixed plate (19), left end side wall and right end sidewalls are provided with through-hole, are fitted in the through-hole adjusting screw rod (20), described
It is plugged in the middle part of adjusting screw rod (20) in the middle part of welding gun fixed plate (19) and constitutes lead screw transmission mechanism.
6. the welding booth according to claim 5 for filling helium plug-hole bonding machine for fuel rod, it is characterised in that: adjusting screw rod
(20) left end is fixed with adjusting handle (21).
7. the welding booth according to claim 5 for filling helium plug-hole bonding machine for fuel rod, it is characterised in that: the welding gun
Adjustment seat (18) upper end is provided with the sliding slot (22) being laterally extended, and welding gun fixed plate (19) setting is in sliding slot (22).
8. the welding booth according to claim 1 for filling helium plug-hole bonding machine for fuel rod, it is characterised in that: the control
Valve includes valve chamber (23), spool (24), and valve chamber (23) inner sidewall is equipped with and the air flue (25) of welding chamber (2) conducting, bottom
It being connected to pedestal (1) bottom end, the spool (24) is concentric with air flue (25) and one end of face air flue (25) is equipped with cushion (26),
Spool (24) sidewall sheath is equipped with sealing ring and is moved left and right by cylinder (28) driving.
9. the welding booth according to claim 8 for filling helium plug-hole bonding machine for fuel rod, it is characterised in that: the cushion
It (26) is T-type rubber pad, one end of spool (24) the face air flue (25) is equipped with the circular hole (27) for fixing cushion (26).
10. the welding booth according to claim 1 for filling helium plug-hole bonding machine for fuel rod, it is characterised in that: the base
Seat (1) front end is equipped with the preceding observation window (29) of observable welding chamber (2), rear end is equipped with the rear observation window of observable welding chamber (2)
(32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920161113.8U CN209465844U (en) | 2019-01-29 | 2019-01-29 | A kind of welding booth for filling helium plug-hole bonding machine for fuel rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920161113.8U CN209465844U (en) | 2019-01-29 | 2019-01-29 | A kind of welding booth for filling helium plug-hole bonding machine for fuel rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209465844U true CN209465844U (en) | 2019-10-08 |
Family
ID=68094330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920161113.8U Active CN209465844U (en) | 2019-01-29 | 2019-01-29 | A kind of welding booth for filling helium plug-hole bonding machine for fuel rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209465844U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756750A (en) * | 2020-12-30 | 2021-05-07 | 中核北方核燃料元件有限公司 | Method for aligning tungsten electrode and plugged hole welding channel of fuel rod |
| CN114406429A (en) * | 2022-01-10 | 2022-04-29 | 中国原子能科学研究院 | Resistance welding device and welding method for helium-filled hole blocking of cladding target tube |
-
2019
- 2019-01-29 CN CN201920161113.8U patent/CN209465844U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756750A (en) * | 2020-12-30 | 2021-05-07 | 中核北方核燃料元件有限公司 | Method for aligning tungsten electrode and plugged hole welding channel of fuel rod |
| CN114406429A (en) * | 2022-01-10 | 2022-04-29 | 中国原子能科学研究院 | Resistance welding device and welding method for helium-filled hole blocking of cladding target tube |
| CN114406429B (en) * | 2022-01-10 | 2023-03-10 | 中国原子能科学研究院 | Resistance welding device and welding method for helium-filled hole blocking of cladding target tube |
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