CN201099855Y - Welded structure box body for elevator apparatus in self-elevating drilling platform - Google Patents
Welded structure box body for elevator apparatus in self-elevating drilling platform Download PDFInfo
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- CN201099855Y CN201099855Y CNU2007200154861U CN200720015486U CN201099855Y CN 201099855 Y CN201099855 Y CN 201099855Y CN U2007200154861 U CNU2007200154861 U CN U2007200154861U CN 200720015486 U CN200720015486 U CN 200720015486U CN 201099855 Y CN201099855 Y CN 201099855Y
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Abstract
The utility model discloses a welding structure case body which is dedicated for an elevating device of a jack-up drilling platform, wherein a face plate (5), a back plate (1), a transverse partition plate (6) and a longitudinal partition plate (8) which are all located between the face plate (5) and the back plate (1) are welded integrally, and are welded on a bottom plate (4). A closure plate is welded on the bottom plate (4) and is disposed at the bilateral sides of the face plate (5) and the back plate (1). A wing plate (7) is welded at the junction of the closure plate (2) and the face plate (5), and a reinforced plate (3) is welded between the wing plate (7) and the closure plate (2). By employing an efficient wielding scheme, the utility model reduces the output of welding heat, and reduces the cooling speed of a joint, thereby solving welding crackle problem. The case body of the utility model has the advantages of reliable strength of structure, low welding deformation and low welding residual stress, further, under the premise of satisfying the requirement of the classification society, the case body of the utility model guarantees the safety of the elevating device of the jack-up drilling platform.
Description
Technical field
The present invention relates to a kind of body structure, more particularly, relate to a kind of casing that is exclusively used in the supporting elevation device.
Background technology
Self-elevating drilling platform is mainly used in exploration, the exploitation of offshore oil/natural gas resource, and its design military service marine site is that the interior 122 meters depth of waters of world wide are with interior various marine environment conditions.Wherein, lifting gear is implementation platform lifting and the equipment that keeps jacking condition, its lift capability: 590 tons/Xiao Chilun @26 hour, maximum ballast hold facility: 968 tons/pinion.In lifting gear, the lifting gear casing has braced structures, plays a supportive role, and the load of whole platform all acts on the body structure.No matter be under static load or moving load condition, body structure all is subjected to the effect of big load.Problem is that modulation steel rigidity is big, and crack problem is outstanding; And manufacturing structure required precision height, very crucial to welding deformation control.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of case body special that utilizes lifting gear in the self-elevating drilling platform that custom-designed welding procedure is welded is provided, this casing has the Structural Strength Reliability height, the characteristics that welding deformation amount is little, welding residual stress is little; Under the prerequisite of the requirement of satisfying relevant classification society.Guaranteed the safety of self-elevating drilling platform lifting gear.
In order to address the above problem, the invention provides a kind of body structure that lifting gear supports and is provided with that in self-elevating drilling platform, is mainly used in, its structure comprises panel 5, backboard 1 as shown in Figure 1.Above-mentioned panel 5, backboard 1 and the lateral partitions between the two 6 and longitudinal baffle 8 are welded as a whole, and are welded in simultaneously on the base plate 4; Shrouding 2 is welded on the base plate 4 and is arranged at the both sides of panel 5, backboard 1, adopts welded construction to fix equally; Intersection between shrouding 2 and panel 5 is welded with wing plate 7, is welded with stiffener 3 between wing plate 7 and shrouding 2.
By technique scheme, the welding procedure of casing utilization special use of the present utility model is welded, and this casing has the Structural Strength Reliability height, the characteristics that welding deformation amount is little, welding residual stress is little; Under the prerequisite of the requirement of satisfying relevant classification society.Guaranteed the safety of self-elevating drilling platform lifting gear.
Description of drawings
Fig. 1 is the schematic perspective view that lifting gear is used casing in the self-elevating drilling platform of the present invention;
Fig. 2 is the welding sequence schematic diagram of weld seam in the lifting gear casing shown in Figure 1;
Fig. 3 is in the casing and the plan structure schematic diagram that welds between the base plate.
The specific embodiment
Offshore boring island is used for the exploration of offshore oil/natural gas resource, and the lifting of platform and position keep relying on lifting gear to realize; Lifting gear casing of the present invention is mainly used in the support and the setting of lifting gear.Its structure comprises panel 5, backboard 1 as shown in Figure 1.Above-mentioned panel 5, backboard 1 and the lateral partitions between the two 6 and longitudinal baffle 8 are welded as a whole, and are welded in simultaneously on the base plate 4; Shrouding 2 is welded on the base plate 4 and is arranged at the both sides of panel 5, backboard 1, adopts welded construction to fix equally; Intersection between shrouding 2 and panel 5 is welded with wing plate 7, is welded with stiffener 3 between wing plate 7 and shrouding 2.
At casing shown in Figure 1, need the special-purpose welding technique of design one cover.Before welding, require the steel plate yield strength to reach 460 MPas, 76 millimeters of steel plate maximum ga(u)ges to Board material for box.In the welding process, adopt the CO2 gas shielded arc welding, preheating is 110 ℃ before the welding, interlayer temperature 110-230 ℃.
Welding procedure generally includes following steps in detail:
(1) lateral partitions 6 between panel 5, backboard 1 and panel 5, the backboard 1 and longitudinal baffle 8 are welded as a whole;
(2) will go up the integral solder that is welded in the step to base plate 4;
(3) two side seal boards 2 are welded on the base plate 4;
(4) stiffener 3 is welded on two side seal boards 2 from top to bottom successively;
(5) wing plate 7 is welded in two side seal boards 2, and the weld seam between welding wing plate 7 and base plate 4, the stiffener 3;
(6) attachment weld between welding backboard 1 and the shrouding 2.
In above-mentioned second step, welding sequence is: at first, and the junction between welding lateral partitions 6 and the base plate 4; Secondly, the junction between welding longitudinal baffle 8 and the base plate 4; Once more, the junction between welding panel 5 and the base plate 4; At last, the junction between welding backboard 1 and the base plate 4.
In above-mentioned self-elevating drilling platform in the welding technique of lifting gear casing, because the lifting gear casing is along the center line symmetry, therefore symmetrical weld seam is wherein selected the symmetry method of construction simultaneously for use.In welding process, welding material adopts AWS A5.29 E81T1-K2 type welding wire.And welding process adopts the even numbers constructor, disperses the welding procedure order of section construction; After welding, adopt vibration aging technology to eliminate welding residual stress.
By said welding method, can improve the efficiency of construction of welding, reduce the sweating heat input, 110 ℃ of weld preheatings, because the control of preheating and interlayer temperature has reduced the cooling velocity of joint, thereby solve the weld crack problem by interlayer temperature 110-230 ℃.Simultaneously, for nearly 100 intensive weld seam, the characteristics that rigidity is big adopt the even numbers constructor, and symmetrical construction, dispersion section construction are the welding procedure order of principle, and adopt vibration aging technology to eliminate welding residual stress.Therefore, effectively solve the problem of weld crack, welding joint mechanical property requirement and welding deformation control.Formulate welding procedure according to the present invention, engineer testing satisfies the requirement of relevant classification society.
Preferred weld technology in conjunction with Fig. 2 and explanation the utility model casing shown in Figure 3.At first dividing plate 6,8 and panel 5, backboard 1 are welded as a whole, concrete welding manner can adopt the even numbers constructor, disperses the method for section construction.After this, as figure:
1, the welding slit between welding lateral partitions 6 and the base plate 4 1..Select balanced welding technology herein for use, as shown in Figure 3.At the long weld of distance, can adopt the backstep method to realize.
2, the welding slit between welding longitudinal baffle 8 and the base plate 4 2., 2. (as shown in Figure 3); There is longitudinally the form with horizontal two direction symmetries herein, for this reason as shown in FIG., comprises two kinds of forms that are symmetrically welded.
3, the weld seam between welding panel 5 and the base plate 4 3., weld between backboard 1 and the base plate 4 attachment weld 4..
4,5., 6. the weld of weld force two side seal boards 2 and base plate 4 as shown in Figure 3, exists the symmetrical structure of two directions herein equally, and the therefore corresponding method that is symmetrically welded that adopts realizes.
5, as shown in Figure 2, with stiffener along 7.-the place is welded on the shrouding 2.
6, wing plate 7 is welded on the shrouding along the place, and being connected between soldered plate and the stiffener.
7, weld weld between backboard and the shrouding at last.
In addition, the contact position of other sheet material as required and easily under the prerequisite, is welded to each other and gets final product.After welding, also need adopt vibration aging technology to eliminate welding residual stress.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (2)
1, the welded construction casing that is used for lifting gear in a kind of self-elevating drilling platform, it is characterized in that, lateral partitions (6) and longitudinal baffle (8) between panel (5), backboard (1) and described panel (5), the backboard (1) are welded as a whole, and are welded on the base plate (4); Shrouding (2) is welded in the both sides that panel (5), backboard (1) were gone up and be arranged to described base plate (4); Intersection between described shrouding (2) and panel (5) is welded with wing plate (7), is welded with stiffener (3) between wing plate (7) and shrouding (2).
2, according to the welded construction casing that is used for lifting gear in the described self-elevating drilling platform of claim 1, it is characterized in that 76 millimeters of the steel plate maximum ga(u)ges that affiliated casing is selected for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200154861U CN201099855Y (en) | 2007-10-22 | 2007-10-22 | Welded structure box body for elevator apparatus in self-elevating drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200154861U CN201099855Y (en) | 2007-10-22 | 2007-10-22 | Welded structure box body for elevator apparatus in self-elevating drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201099855Y true CN201099855Y (en) | 2008-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200154861U Expired - Fee Related CN201099855Y (en) | 2007-10-22 | 2007-10-22 | Welded structure box body for elevator apparatus in self-elevating drilling platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN201099855Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909479A (en) * | 2012-09-29 | 2013-02-06 | 郑州市嵩阳煤机制造有限公司 | Welding method for square long girders |
| CN104411580A (en) * | 2012-06-29 | 2015-03-11 | 三星重工业株式会社 | Floating type structure |
| CN105155497A (en) * | 2015-09-21 | 2015-12-16 | 上海振华重工集团（南通）有限公司 | Self-elevating type hoisting platform lifting device and manufacturing process thereof |
| CN109483078A (en) * | 2018-12-19 | 2019-03-19 | 南通振华重型装备制造有限公司 | A kind of bolt-type lifting ring beam method of construction |
-
2007
- 2007-10-22 CN CNU2007200154861U patent/CN201099855Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104411580A (en) * | 2012-06-29 | 2015-03-11 | 三星重工业株式会社 | Floating type structure |
| CN102909479A (en) * | 2012-09-29 | 2013-02-06 | 郑州市嵩阳煤机制造有限公司 | Welding method for square long girders |
| CN102909479B (en) * | 2012-09-29 | 2015-07-29 | 郑州市嵩阳煤机制造有限公司 | Square long girder steel welding method |
| CN105155497A (en) * | 2015-09-21 | 2015-12-16 | 上海振华重工集团（南通）有限公司 | Self-elevating type hoisting platform lifting device and manufacturing process thereof |
| CN109483078A (en) * | 2018-12-19 | 2019-03-19 | 南通振华重型装备制造有限公司 | A kind of bolt-type lifting ring beam method of construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20121022 |