CN208033890U - A kind of welding structure of nuclear power Leak-tight liner - Google Patents
A kind of welding structure of nuclear power Leak-tight liner Download PDFInfo
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- CN208033890U CN208033890U CN201820246000.3U CN201820246000U CN208033890U CN 208033890 U CN208033890 U CN 208033890U CN 201820246000 U CN201820246000 U CN 201820246000U CN 208033890 U CN208033890 U CN 208033890U
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- welding
- weld
- ceramic substrate
- nuclear power
- steel plate
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Abstract
A kind of welding structure of nuclear power Leak-tight liner, two pieces of 4 welding grooves 5 of steel plate to welding are opposite, in weld seam back side, ceramic substrate 1 is set, it is pasted on the steel plate 4 with both sides by aluminium-foil paper 3, the place opposite with weld seam of ceramic substrate 1 is provided with arc groove 2, the width of arc groove 2 is slightly larger than 4 gap of steel plate, the welding structure of nuclear power Leak-tight liner described in the utility model, it is pasted with ceramic substrate 1 in the back of weld of the steel plate 4 of welding, the root of weld and the external world are separated by ceramic substrate 1 and aluminium-foil paper 3, efficiently avoid contact of the external wind with the root of weld, influence of the external wind to its weldquality is prevented completely, it ensure that the quality of weld seam, to reliably ensure that the weld strength of nuclear power Leak-tight liner, avoid the security risk therefore brought.
Description
Technical field
This field is related to a kind of welding structure of nuclear power Leak-tight liner.
Background technology
The welding of Leak-tight liner is the important link of nuclear power plant's weld job, Leak-tight liner by the carbon steel sheet welding of two pieces of 6mm and
At general 10 meters or so, up to 26 meters of fusion length.In order to control welding deformation and welding quality, using manual tungsten electrode
The welding method of argon arc welding is welded, but since Leak-tight liner welding is all outdoor working at height, during weld job easily
It is interfered by natural wind, and hand tungsten argon arc welding is a kind of welding method extremely sensitive to natural wind.According to French core
Electric construction criteria RCC-M 2007：S requirements, ambient wind velocity is no more than 2m/s when hand tungsten argon arc welding welding.But core
Power station is all bordered on the sea construction, and long-term wind speed is larger, therefore while welding needs to take necessary draught exclusion device, to ensure its welding quality
It is effectively controlled.
Interference of the natural wind to weld job in order to prevent, it is generally the case that flameproof fabric can be used to carry out welded seam area
It blocks.But since nuclear power plant's construction environment is complicated and changeable, fusion length is longer to cause weld job face wider.The flameproof fabric blocked
It needs to be laid in large area, is easy to be split by wind in high-altitude after flameproof fabric laying area is larger, to lose windbreak function.
Natural wind enters weld job point from flameproof fabric gap and weld job, draught exclusion device is interfered to be difficult to effective execution.Especially certainly
Right wind can enter the root of weld along the contact surface of Leak-tight liner siding and flameproof fabric, form draught, directly destroy welding protection
Protection of the gas to welding region, influences the metallurgical reaction in weld seam molten bath, seriously affects welding quality.Therefore the root of weld
The prevention of draught is the most important thing of Leak-tight liner welding procedure, and ensures the difficult point place of welding quality.
Utility model content
The utility model provides a kind of welding structure for the nuclear power Leak-tight liner that the root of weld can be avoided to generate draught,
To ensure the quality of weld seam.
A kind of welding structure of nuclear power Leak-tight liner, two pieces of welding bevel of steel plate to welding are opposite, are arranged in weld seam back side
Ceramic substrate is pasted onto by aluminium-foil paper on the steel plate of both sides, and ceramic substrate place opposite with weld seam is provided with arc groove, arc
The width of connected in star is slightly larger than steel plate gap.
The welding structure of nuclear power Leak-tight liner described in the utility model is pasted with pottery in the back of weld of the steel plate of welding
Ceramic liner pad, is separated the root of weld and the external world by ceramic substrate and aluminium-foil paper, efficiently avoids external wind and the root of weld
Contact, prevented influence of the external wind to its weldquality completely, ensure that the quality of weld seam, to reliably ensure that core
The weld strength of electric Leak-tight liner avoids the security risk therefore brought.
Description of the drawings
Fig. 1 is the welded structural schematic diagram of the nuclear power Leak-tight liner welding.
Fig. 2 is the structural schematic diagram of porcelain block.
Specific implementation mode
As shown in Figure 1, the welding structure of the nuclear power Leak-tight liner, two pieces of 4 welding grooves 5 of steel plate to welding are opposite, welding
It stitches back side and ceramic substrate 1 is set, be pasted onto on the steel plate 4 of both sides by aluminium-foil paper 3, set at the place opposite with weld seam of ceramic substrate 1
It is equipped with arc groove 2, the width of arc groove 2 is slightly larger than 4 gap of steel plate.
The welding structure of the nuclear power Leak-tight liner is in use, it is pasted with ceramic substrate in the back of weld of the steel plate 4 of welding
1, the root of weld and the external world are separated by ceramic substrate 1 and aluminium-foil paper 3, effectively avoid connecing for external wind and the root of weld
It touches, has prevented influence of the external wind to its weldquality completely, ensure that the quality of weld seam, to reliably ensure that nuclear power steel
The weld strength of lining, the security risk for avoiding therefore bringing.
As shown in Fig. 2, for the arc groove 2 of ceramic substrate 1, size is with 10-12mm width, 0.8-1.5mm depth
Be preferred.The ceramic substrate 1 of the size may control the molding reinforcement of back of weld and weld width meets French Nuclear Power construction
The requirement of standard RCC-M 2007 MC.The arc groove 2 of above-mentioned size simultaneously, also allows for welding fabrication and deslagging.
The shape of ceramic substrate 1 is strip, covers entire weld seam, chamfering can be arranged in two bottom sides, can increase
It while bonding area between aluminium-foil paper 3, reduces aluminium-foil paper 3 and is located at the hanging area of 1 both sides of ceramic substrate, to increase
The fastness of stickup simultaneously, reduces the dosage of aluminium-foil paper 3.
Claims (3)
1. a kind of welding structure of nuclear power Leak-tight liner, two blocks of steel plates to welding（4）Welding groove（5）Relatively, in weld seam back side
Ceramic substrate is set（1）, pass through aluminium-foil paper（3）Paste the steel plate with both sides（4）On, it is set at the place opposite with weld seam of ceramic substrate 1
It is equipped with arc groove（2）, arc groove（2）Width be slightly larger than steel plate（4）Gap is exclusively used in welding fabrication auxiliary and weld seam root
Portion is windproof.
2. welding structure according to claim 1, it is characterised in that：The ceramic substrate（1）Arc groove（2）Width
For 10-12mm, depth 0.8-1.5mm.
3. welding structure according to claim 1, it is characterised in that：The ceramic substrate（1）For strip, covering is entirely
Weld seam, two bottom sides are provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820246000.3U CN208033890U (en) | 2018-02-11 | 2018-02-11 | A kind of welding structure of nuclear power Leak-tight liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820246000.3U CN208033890U (en) | 2018-02-11 | 2018-02-11 | A kind of welding structure of nuclear power Leak-tight liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208033890U true CN208033890U (en) | 2018-11-02 |
Family
ID=63952939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820246000.3U Expired - Fee Related CN208033890U (en) | 2018-02-11 | 2018-02-11 | A kind of welding structure of nuclear power Leak-tight liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208033890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548401A (en) * | 2020-11-20 | 2021-03-26 | 中冶天工集团有限公司 | Mounting method for steel gasket of box-shaped section component |
-
2018
- 2018-02-11 CN CN201820246000.3U patent/CN208033890U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548401A (en) * | 2020-11-20 | 2021-03-26 | 中冶天工集团有限公司 | Mounting method for steel gasket of box-shaped section component |
| CN112548401B (en) * | 2020-11-20 | 2023-01-24 | 中冶天工集团有限公司 | Mounting method for steel gasket of box-shaped section component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 Termination date: 20200211 |