CN203448842U - Welded joint structure of large titanium-steel made composite plate pressure vessel - Google Patents
Welded joint structure of large titanium-steel made composite plate pressure vessel Download PDFInfo
- Publication number
- CN203448842U CN203448842U CN201320266054.3U CN201320266054U CN203448842U CN 203448842 U CN203448842 U CN 203448842U CN 201320266054 U CN201320266054 U CN 201320266054U CN 203448842 U CN203448842 U CN 203448842U
- Authority
- CN
- China
- Prior art keywords
- titanium
- pressure vessel
- welded joint
- plate
- joint structure
- 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.)
- Expired - Lifetime
Links
Landscapes
- Arc Welding In General (AREA)
Abstract
The utility model discloses a welded joint structure of a large titanium-steel made composite plate pressure vessel. The welded joint structure comprises a first welded joint on a steel substrate, a second welded joint between a filled titanium plate and a titanium composite plate and a third welded joint between the titanium composite plate and a titanium cover plate; and the titanium cover plate is arc-shaped.
Description
Technical field
The utility model belongs to the technical field that titanium-steel composite board pressure vessel is manufactured, and relates to particularly a kind of welded joint structure of large-scale titanium-steel composite board pressure vessel.
Background technology
At field of industrial productions such as chemical industry, metallurgy, adopt more and more titanium-steel composite board pressure vessel.This equipment can move under high temperature, condition of high voltage.The inner side of this container is titanium plate, mainly plays anticorrosive effect; The outside of container is steel plate, mainly plays withstand voltage effect.
The internal diameter of large-scale titanium-steel composite board pressure vessel can reach several meters, and length or height can reach more than 10 meters, and weight belongs to heavy-duty construction equipment more than can reaching tens of tons.They are normally formed by multiple titanium-steel composite board weldings, therefore have many longitudinal seams and girth joint, and its quality of weld joint plays vital effect to the security reliability of pressure vessel.
Titanium is high-melting-point active metal, has very big-difference with the character of steel.When manufacturing titanium-steel composite board pressure vessel, the unsuitable melting welding mutually of titanium layer and steel layer, distinguish welding.For this reason, need to adopt a kind of more complicated welded joint structure.
Conventionally, the welded joint structure of titanium-steel composite board pressure vessel roughly has two kinds, and the first joint design can be divided into two-layer, the welding point that ground floor is steel substrate, the second layer be titanium cover plate and with the welding point of titanium compound plate.The titanium cover plate that this structure is used has surperficial straight shape and two kinds of structures of middle concave; The second joint design is divided into three layers: the welding point that ground floor is steel substrate, the second layer for fill titanium plate and with the welding point of titanium compound plate, the 3rd layer be titanium cover plate and with the welding point of titanium compound plate.The titanium cover plate that this structure is used is the titanium lath of surfacing.But when pressure vessel is worked, because titanium plate temperature can produce the fluctuation of 200 ℃-300 ℃, can make titanium cover plate produce larger flexible and thermal stress.Be subject to the effect of thermal cycling stresses, titanium cover plate angle welding place is easy to crack, and the sealing of breakdown pressure container may cause serious security incident, and therefore, the welded joint structure of large-scale titanium-steel composite board pressure vessel haves much room for improvement.
Summary of the invention
The utility model object is to provide a kind of welded joint structure of large-scale titanium-steel composite board pressure vessel of weld seam good airproof performance.
To achieve these goals, the utility model adopts following technical scheme: the welded joint structure of this large-scale titanium-steel composite board pressure vessel, comprise the 3rd welding point between the second welding point, titanium compound plate and the titanium cover plate between the first welding point, filling titanium plate and the titanium compound plate on steel substrate, the shape of titanium cover plate is arc.
The utility model adopts the titanium cover plate of arc, when the gradient of temperature in pressure vessel fluctuates, it is flexible to there is side direction in the titanium cover plate of arc, change the radian of titanium cover plate, the stress that reduces titanium bridge weld seam place is concentrated, and adopts steel substrate, titanium compound plate, arc titanium cover plate three-decker, has improved the sealing of whole weld seam, reduce the disclosure risk of pressure vessel, improve the security reliability of equipment.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the welded joint structure of large-scale titanium-steel composite board pressure vessel of the present utility model.
The specific embodiment
As shown in Figure 1, the welded joint structure of this large-scale titanium-steel composite board pressure vessel, comprise the 3rd welding point 7 between the second welding point 6, titanium compound plate and the titanium cover plate 3 between the first welding point 5, filling titanium plate 4 and the titanium compound plate 2 on steel substrate 1, the shape of titanium cover plate is arc.Wherein, the welding of arc titanium cover plate and titanium compound plate can adopt argon arc welding fillet welding technology.
The utility model adopts arc titanium cover plate, when the gradient of temperature in pressure vessel fluctuates, it is flexible to there is side direction in arc titanium cover plate, change the radian of titanium cover plate, the stress that reduces titanium bridge weld seam place is concentrated, and adopts steel substrate, titanium compound plate, arc titanium cover plate three-decker, has improved the sealing of whole weld seam, reduce the disclosure risk of pressure vessel, improve the security reliability of equipment.
Preferably, the radian of titanium cover plate is 70 °-80 °, and chord length is 55 ㎜-65 ㎜.
Preferably, the thickness of titanium cover plate is more than or equal to the thickness of titanium compound plate.
Preferably, steel substrate has bevel for welding, and titanium compound plate is provided with opening above corresponding bevel for welding, fills titanium plate 4 and is placed on opening part, and titanium plate cover is above opening.
Preferably, the width of opening is than the large 20mm-25 ㎜ of the width of bevel for welding the widest part.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong to the protection domain of technical solutions of the utility model.
Claims (5)
1. the welded joint structure of a large-scale titanium-steel composite board pressure vessel, comprise the 3rd welding point (7) between the second welding point (6), titanium compound plate and the titanium cover plate (3) between the first welding point (5), filling titanium plate (4) and the titanium compound plate (2) on steel substrate (1), it is characterized in that: the shape of titanium cover plate is arc.
2. the welded joint structure of large-scale titanium-steel composite board pressure vessel according to claim 1, is characterized in that: the radian of titanium cover plate is 70 °-80 °, and chord length is 55 ㎜-65 ㎜.
3. the welded joint structure of large-scale titanium-steel composite board pressure vessel according to claim 1 and 2, is characterized in that: the thickness of titanium cover plate is more than or equal to the thickness of titanium compound plate.
4. the welded joint structure of large-scale titanium-steel composite board pressure vessel according to claim 3, it is characterized in that: steel substrate has bevel for welding, titanium compound plate is provided with opening above corresponding bevel for welding, fills titanium plate (4) and is placed on opening part, and titanium plate cover is above opening.
5. the welded joint structure of large-scale titanium-steel composite board pressure vessel according to claim 4, is characterized in that: the width of opening is than large 20 ㎜-25 ㎜ of the width of bevel for welding the widest part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320266054.3U CN203448842U (en) | 2013-05-16 | 2013-05-16 | Welded joint structure of large titanium-steel made composite plate pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320266054.3U CN203448842U (en) | 2013-05-16 | 2013-05-16 | Welded joint structure of large titanium-steel made composite plate pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203448842U true CN203448842U (en) | 2014-02-26 |
Family
ID=50128746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320266054.3U Expired - Lifetime CN203448842U (en) | 2013-05-16 | 2013-05-16 | Welded joint structure of large titanium-steel made composite plate pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203448842U (en) |
-
2013
- 2013-05-16 CN CN201320266054.3U patent/CN203448842U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109397796B (en) | Curved surface sandwich metal plate | |
| CN204456570U (en) | A kind of Dome roof tank net shell of steel mixed type | |
| CN204677934U (en) | A kind of novel alloy flange | |
| CN203878865U (en) | Profile steel concrete column member | |
| CN203448842U (en) | Welded joint structure of large titanium-steel made composite plate pressure vessel | |
| CN202881934U (en) | Small-diameter steel pipe pile connection structure | |
| CN207331458U (en) | A kind of steel bridge with Rolling compund floorings | |
| CN102513712A (en) | Manufacturing method for tantalum composite board equipment | |
| CN103342150A (en) | Manhole cover for ship | |
| CN204186673U (en) | A kind of oil cylinder with active connection | |
| CN105280245A (en) | Double-layer thin-wall trough steel bar all-welded annular vacuum container | |
| CN208919695U (en) | Load-carrying construction, mechanical part and construction equipment | |
| CN203795944U (en) | Corrosion protection inner liner for steel chimney | |
| CN203830931U (en) | W-shaped seal connecting welded junction | |
| CN204328471U (en) | For the low temperature adsorbent device of deep cooling pressurized container | |
| CN204781604U (en) | Adopt steel pipe concrete coincide post component of active powder concrete outsourcing | |
| CN218902391U (en) | Nozzle structure | |
| CN204729067U (en) | The sand control screen of welding-on filter block | |
| CN105202285B (en) | A kind of anticorrosive bimetallic transition pipe joint of antiseep and its manufacture method | |
| CN203823318U (en) | Combined pipe with double-metal composite layered structure | |
| WO2015004538A3 (en) | Multilayer repair of thick wall vessels | |
| CN203223354U (en) | Cylinder cover head | |
| CN204815759U (en) | Titanium alloy crystallizer | |
| CN208965976U (en) | A kind of flue expansion joint top water-proof protective system | |
| CN215618073U (en) | Intelligent equipment industrial robot aluminum alloy component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
|
| CX01 | Expiry of patent term |