CN205271319U - Deep sea pressure chamber cabin body - Google Patents
Deep sea pressure chamber cabin body Download PDFInfo
- Publication number
- CN205271319U CN205271319U CN201521013834.2U CN201521013834U CN205271319U CN 205271319 U CN205271319 U CN 205271319U CN 201521013834 U CN201521013834 U CN 201521013834U CN 205271319 U CN205271319 U CN 205271319U
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- CN
- China
- Prior art keywords
- cabin body
- welding
- cabin
- deep sea
- pressure chamber
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- Expired - Fee Related
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Abstract
The utility model relates to a deep sea pressure chamber cabin body, its characterized in that: the cabin body adopts the segmetnal structure, personally experience sth. Part of the body to divide and amount to a section cabin body unit in the cabin, the inner wall of the unit of personally experiencing sth. Part of the body in adjacent cabin is equipped with the location tang of negative and positive butt joint, and the fit clearance of location tang is 0.02~0.06mm, be equipped with the welding groove on the adjacent cabin body unit, the shape of welding groove is the J -shaped, and the bottom is R4.5mm's fillet, and welding groove tip maximum breadth is 12~14mm. Foretell deep sea pressure chamber cabin body's manufacturing process is the scheme that adopts the smithwelding to combine, application narrow gap welding technology and the cooperation of fixing a position the tang, and then guarantee that welding quality is good, it is little, efficient to warp. The implementation of this technology is very simple and convenient, has solved a difficult problem of manufacturing the in -process, can satisfy welding quality well, detect a flaw, reach the requirement of design size each item.
Description
Technical field
The utility model belongs to narrow gap welding technical field, particularly relates to a kind of cabin, 230mm wall thickness deep sea pressure cabin body.
Background technology
For promoting China's deep-sea oil-gas mining technical development under water, break through prior art bottleneck, improve China's deep-sea oil gas ability to develop independently, the social contradications that solution China's hydrocarbon resources undersupply and demand constantly increase further, Tianjin Steel Tube Group Co., Ltd and shipbuilding and offshore engineering institute of University Of Tianjin intend co-design, development, and full-scale deep sea pressure cabin experiment porch is set up in University Of Tianjin's deep water structure laboratory, for carrying out the pilot scale detection work to China's deep sea equipment, simulation deep water extreme loads environment, to oil transportation pipe fitting, valve, the deep sea equipments such as underwater robot carry out mechanical test.
Cabin body is most critical parts, material 20MnMoNb, inside and outside round �� 1710/ �� 1250mm, long 9150mm, heavy 84942kg, design pressure-bearing 76MPa. Forging blank tonnage is too heavy, need to adopt the mode of segmentation forging, group weldering, and when segmentation is welded, owing to body wall thick 230mm in cabin is thicker, common welding process groove is big, has not only wasted solder wire material, but also has extremely easily produced welding crack; And, in after integral assembly welding, hole machined exceeds machine tool travel, cannot process. Based on the problems referred to above, what main needs solved is exactly segmentation forging, how to ensure welding quality, reduces welding distortion, and the problem of cabin body inwall processing, and the application of this manufacturing process just seems very important.
Summary of the invention
The utility model is for solving the technical problem of existence in known technology and provide cabin, a kind of deep sea pressure cabin body that a kind of welding quality height, distortion amount are little, efficiency is high.
The utility model is the technical scheme that the technical problem existed in solution known technology is taked:
A kind of cabin, deep sea pressure cabin body, it is characterised in that: cabin body adopts segmental structure, and described cabin body is divided into several sections of cabin body units, and the inwall at adjacent cabin body unit is provided with the positioning spigot of negative and positive docking, and the tolerance clearance of positioning spigot is 0.02��0.06mm; Adjacent cabin body unit is provided with bevel for welding, and the shape of described bevel for welding is J shape, and bottom is the fillet of R4.5mm, and bevel for welding end maximum width is 12��14mm.
The advantage that the utility model has and positively effect be: owing to the utility model adopts the scheme of forge weldling, uses narrow gap welding, and welding quality is good, be out of shape little, efficiency height. And Design Orientation stopping table, ensure welding location and inwall processing. The enforcement of this technique is very simple and convenient, solves the difficult problem in manufacturing process, it is possible to meet the every requirement of welding quality, flaw detection and size well.
Accompanying drawing explanation
Fig. 1 is cabin body welding structural representation;
Fig. 2 is narrow gap welding sketch;
Fig. 3 is bevel for welding and positioning spigot fit structure schematic diagram;
Fig. 4 is cloudy positioning spigot structural representation;
Fig. 5 is sun positioning spigot structural representation.
In figure: 1, cabin body; 101��105, cabin body unit; 120, positioning spigot; 130, bevel for welding.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby enumerate following examples, and coordinate accompanying drawing to be described in detail as follows:
The present embodiment is according to material 20MnMoNb, and inside and outside round �� 1710/ �� 1250mm, long 9150mm, weigh 84942kg, and the cabin body of design pressure-bearing 76MPa, wall thickness 230mm is described,
Refer to Fig. 1 to Fig. 3, a kind of cabin, deep sea pressure cabin body, cabin body 1 adopts segmental structure, described cabin body is divided into 5 sections of cabin body units, it is followed successively by cabin body unit 101, cabin body unit 102, cabin body unit 103, cabin body unit 105, cabin body unit 105, inwall at adjacent cabin body unit is provided with the positioning spigot 120 of negative and positive docking, refers to Fig. 4 and Fig. 5, wherein cloudy positioning spigot be 121, sun positioning spigot be 122; The tolerance clearance of negative and positive positioning spigot is 0.02��0.06mm; Adjacent cabin body unit is provided with bevel for welding 130, and the shape of described bevel for welding is J shape, and bottom is the fillet of R4.5mm, and bevel for welding end maximum width is 12��14mm, the preferred 14mm of the present embodiment.
The manufacturing process of cabin, a kind of deep sea pressure cabin body comprises the steps:
1) selection of welding process. If adopting mixed gas protected weldering or union-melt weld, it is necessary to prepare bigger bevel for welding, weldering amount is big, the corresponding increase of welding stress, it is easy to produce welding crack and welding distortion. For ensureing weldquality, control welding distortion, the mode of narrow gap welding is adopted to weld, so-called narrow gap welding, namely Small angle groove is only opened, the maximum wide 12-14mm in groove end, by giving wire bending speciality, utilizes the waveform welding wire that it is formed, make groove two complete completepenetrations of sidewall, it is achieved the welding process of one layer of one welding bead;
2), according to the length of cabin body, in conjunction with the processing stroke of boring machine, it is determined that the quantity of whole cabin body segmentation, the present embodiment is divided into five sections, i.e. five cabin body units, then makes segmentation blank cabin body unit, and each section of roughing;
3), on lathe, the bevel for welding of processing cabin body unit and the positioning spigot of cabin body unit, described bevel for welding shape be J shape, bottom is the fillet of R4.5mm, and bevel for welding end maximum width is 12��14mm; Described positioning spigot is negative and positive butt junction location only mouth, and only the tolerance clearance of mouth is 0.02��0.06mm;
4), according to the side of cabin body dock adjacent cabin body unit, such as cabin body unit 101, cabin body unit 102, ensure that positioning spigot aligns, after aligning, weld interim preset pieces at positioning spigot position and be fixed;
5) process, before and after welding, needs before welding welding part is carried out preheating, needs to be incubated weld, prevent welding distortion after welding, ensure overall linearity��5mm;
6), detecting, weld seam completepenetration, carries out 100% UT (Ultrasonic Testing) detection, and quality performs I grade of JB4730-2005, technical grade B level; Carrying out 100% magnetic-particle inspection detection, quality performs I grade of JB/T4730.4-2005;
7), detect a flaw qualified after, upper boring machine, the preset pieces of inwall and positioning spigot are removed in machining;
8), repeating 4��7 steps, weld remaining cabin body unit successively, ultrasonic involve magnetic-particle inspection, qualified post-treatment removes positioning spigot, until all cabin body unit sections have all been welded;
9), after integral assembly welding, carry out anneal, and require that overall processing survives according to drawing, ensure the even of wall thickness.
The advantage that the utility model has and positively effect be: owing to the utility model adopts the scheme of forge weldling, uses narrow gap welding, and welding quality is good, be out of shape little, efficiency height. And Design Orientation stopping table, ensure welding location and inwall processing. The enforcement of this technique is very simple and convenient, solves the difficult problem in manufacturing process, it is possible to meet the every requirement of welding quality, flaw detection and size well.
The above is only to better embodiment of the present utility model, not the utility model is done any restriction in form, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (1)
1. cabin, deep sea pressure cabin body, it is characterised in that: cabin body adopts segmental structure, and described cabin body is divided into several sections of cabin body units, and the inwall at adjacent cabin body unit is provided with the positioning spigot of negative and positive docking, and the tolerance clearance of positioning spigot is 0.02��0.06mm; Adjacent cabin body unit is provided with bevel for welding, and the shape of described bevel for welding is J shape, and bottom is the fillet of R4.5mm, and bevel for welding end maximum width is 12��14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013834.2U CN205271319U (en) | 2015-12-09 | 2015-12-09 | Deep sea pressure chamber cabin body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013834.2U CN205271319U (en) | 2015-12-09 | 2015-12-09 | Deep sea pressure chamber cabin body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205271319U true CN205271319U (en) | 2016-06-01 |
Family
ID=56055940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521013834.2U Expired - Fee Related CN205271319U (en) | 2015-12-09 | 2015-12-09 | Deep sea pressure chamber cabin body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205271319U (en) |
-
2015
- 2015-12-09 CN CN201521013834.2U patent/CN205271319U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160601 Termination date: 20161209 |