CN1533861A - Device used in welding pipeline under water - Google Patents
Device used in welding pipeline under water Download PDFInfo
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- CN1533861A CN1533861A CNA03111279XA CN03111279A CN1533861A CN 1533861 A CN1533861 A CN 1533861A CN A03111279X A CNA03111279X A CN A03111279XA CN 03111279 A CN03111279 A CN 03111279A CN 1533861 A CN1533861 A CN 1533861A
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- casing
- guide sleeve
- welding
- pipe fitting
- pipeline
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Abstract
An equipment for welding underwater pipeline has a case body for welding in it easily. On the opposite walls of said case body there is the through hole for each in order to insert the pipes into the case body for butt connection. It has also the guide sleeve, steps and guide rod for correctly and quickly inserting pipes into the case body. Its advantages are simple operation and low cost.
Description
Technical field: the present invention relates to a kind of object that is used for welding under water, in particular for the device of underwater welding spreading apart from metal tubes.
Background technique: when laying water delivery or pipeline road in the waters, longer because of laying pipeline, volume and weight is all bigger, and existing hanging device can't be laid the disposable lifting of this pipeline successfully, the pipeline multistage need be laid usually and be welded to each other formation again.Because when metal tubes or similar articles are carried out melting welding, thermal source need provide enough heat to form and to keep a suitably metal bath of size to the welding part, and the effect because of water is enough to destroy this metal bath when welding under water, to such an extent as to can not normally weld, therefore, the mode of the above-mentioned pipeline of traditional welding adopts the segmentation cofferdam usually, and then draining is carried out so that welding region forms anhydrous operation area in the zone, cofferdam, and then pipeline is welded.And a large amount of mechanical power equipments and lot of manpower and material resources need be arranged in cofferdam and drainage procedure, so the cost that the use said method is laid underwater pipeline is high especially, the engineering time is longer.
For this reason, two kinds of technology of useful in the prior art WET WELDING and dried chamber welding are welded underwater pipeline.Wherein:
WET WELDING is to utilize arc welding and specific welding rod directly member such as pipeline to be welded under water, and needs the powerful electric current support about 500 amperes in welding process.Simultaneously in welding process, because water all around is the attack metal molten bath continuously, cause that very easily the blow-out situation produces, and the existence because of hydrogen tends to make the solder joint fusing in this welding surroundings, harden and easily cause the weld seam explosion, in addition, the high speed rate of cooling has also hindered gas to discharge from the molten bath, thereby has encouraged the appearance of hole and bubble, so, above-mentioned WET WELDING can not guarantee welding quality, is not suitable for the underwater pipeline welding;
Doing the chamber welding is to utilize a firm transparent plastic jacket to protect the welding part, charges into pressurized gas then in it, and water is discharged, and the operator can enter in the safety cover from the bottom that safety cover opens wide parts are welded.As seen; do the chamber welding and only be applicable to that the member to predetermined altitude welds; and the parts that are not suitable for water-bed portion weld; simultaneously, because of the pressurized gas that is charged into must carry out continuously, otherwise; water will enter in the safety cover; secondly, can't discharge, bring difficulty for operator's proper functioning because of the cigarette and the steam that when welding, produce.So, do the chamber welding and have the high and problems such as welding quality and operating difficulties of cost too.
For addressing the above problem, CN2458117Y has announced a kind of name and has been called " welding miniature drainage means under water " technology, and it adopts airtight and an insulate drainage cover, will need the welding part to be isolated from the outside under water by drainage cover, to realize doing the chamber welding.But the mode of the local draining welding that this device adopts for the pipeline workpiece of need welding, just can be finished by displacement repeatedly; Secondly, in welding operation, must in described drainage cover, operate, cause operator's visibility to reduce, be difficult to guarantee welding quality because of soldering set.
Summary of the invention: task of the present invention provides a kind of that be convenient to operation and cost is low is used for the device that underwater welding is taken over the road.
Proposed by the invention be used for the device that underwater welding is taken over the road, have a casing that can make things convenient for welding operation in inside, two sidewalls of casing are provided with and can allow the through hole that extend in the casing and achieve a butt joint from the pipe fitting of both direction at least.
The top of described casing also is equipped with can coupled logical auxiliary casing for convenience detach and vertical.The edge of described auxiliary casing is provided with the Baltimore groove that can insert described casing upper edge, and is provided with elasticity and binding material in this Baltimore groove.
The opposite direction of described casing is provided with two through holes, the end of one of them through hole and pipeline is affixed, another through hole be axially installed with the guide sleeve of slightly larger in diameter in described pipe fitting, and in this guide sleeve, also be equipped with and make pipe fitting penetrate guide bearing in the guide sleeve quickly and easily, the bottom of this guide sleeve front end extends outward a step, and two sides and upper edge at step are provided with the guide rod that makes the pipe fitting location of pre-installation with perpendicular being used to of described guide sleeve, in the outer end of guide sleeve elastic sleeve are installed also and are used for fastening this elastic sleeve and make it can reach the fastening piece of sealing after pipe fitting is installed.The part that described guide sleeve extends casing also is provided with protection apron.
Because the present invention has adopted a casing that water and welded part are separated, can realize doing the chamber welding, so the structure of this device is quite simple, its cost is very low; Secondly, described device can also adopt can be for convenience detach a plurality of casings vertical overlapping and make the top exceed the composite structure of the water surface, after the welding of the pipe fitting in the casing is finished, dismantle the casing on top down again, this kind device can be used in the waters of the different depth of waters, the casing on top is also reusable simultaneously, to reduce user cost further; In addition, the front end of guide sleeve is provided with described in this device step and guide rod can make pipe fitting can pack into rapidly and accurately in the casing, bring many convenience to the operator.
Description of drawings: accompanying drawing 1 is the outward appearance cross-sectional view of one embodiment of the invention; Accompanying drawing 2 is that the I of Fig. 1 is to cutaway view Amplified image.
Embodiment:, provide the overall appearance structure of one embodiment of the invention referring to Fig. 1.Device of the present invention has one can be suitable for the casing 1 that the people makes things convenient for the normally rectangle of welding operation within it, a through hole (11 is set respectively on two of casing relative sidewalls, 12), wherein, through hole 11 is affixed with an end of pipeline 2, and through hole 12 be axially installed with the guide sleeve 3 of slightly larger in diameter in pre-insertion pipe fitting.
Guide sleeve 3 is to be cylindrical substantially from seeing in appearance, lower area in it is equipped with the guide bearing 31 that can make pipe fitting penetrate guide sleeve interior 3 quickly and easily, and extend outward a semicircle step 32 in the bottom of its front end, be provided with the location guide 33 perpendicular in the upper edge of two sides of this step 32 and step 32, and location guide 33 is along stretching out the water surface with described guide sleeve 3.Guide sleeve 3 outer ends also are equipped with and are used to seal the elastic sleeve 34 of water and are used for fastening this elastic sleeve 34 and are arranged on the fastening piece 35 that is made of steel wire or its analog of elastic sleeve 34 outsides, and are arranged on the protection apron 36 that guide sleeve 3 extends the casing part.Elastic sleeve 34 mainly is to be used for closing pipe line 4, after pipeline 4 inserts in the elastic sleeve 34 by guide sleeve 3, with fastening piece 35 elastic sleeve 34 is fastened on the pipeline 4, bleed casing 1 with the water that prevents the outside from the periphery of pipeline 4 in.
Described guide sleeve 3 mainly is to be used for can pack into exactly parts in the casing 1 of the end of laying pipeline 4 in advance.When laying, it is interior and affixed at first pipeline 2 to be extend into casing 1, water is put in the inboard that three location guides 33 that surface are close in the end and the side of pipeline 4 then, advance pipeline 4 in the guide sleeves 3 again and the end of its end and pipeline 2 is connected, extract casing 1 interior water at last out and weld again.
Consider problems such as the degree of depth of water and cost, described casing 1 is arranged to overlapping multi-layer structure up and down.Present embodiment just provides the casing (13,14) of double-layer structure up and down, casing 14 be can be for convenience detach auxiliary casing, its edge next week is provided with the Baltimore groove 15 that can insert described casing upper edge, and is provided with elasticity 16 and binding material in this Baltimore groove 15.And be provided with in the inboard of casing 1 and be used for screw rod 17 that casing 13 and casing 14 are linked together.After pipeline 4 layings are finished, can earlier screw rod 17 be pulled down, again casing 14 is taken out, to reuse.
Claims (7)
1, is used for the device that underwater welding is taken over the road, it is characterized in that: this device has a casing that can make things convenient for welding operation in inside, and two sidewalls of casing are provided with and can allow the through hole that extend in the casing and achieve a butt joint from the pipe fitting of both direction at least.
2, device according to claim 1 is characterized in that: the top of described casing also is equipped with can coupled logical auxiliary casing for convenience detach and vertical.
3, device according to claim 1, it is characterized in that: the opposite direction of described casing is provided with two through holes, the end of one of them through hole and pipeline is affixed, another through hole be axially installed with the guide sleeve of slightly larger in diameter in described pipe fitting, and in this guide sleeve, also be equipped with and can make pipe fitting penetrate guide bearing in the guide sleeve quickly and easily.
4, device according to claim 3, it is characterized in that: the bottom of described guide sleeve front end extends outward a step, and is provided with the guide rod that makes the pipe fitting location of pre-installation with perpendicular being used to of described guide sleeve in two sides and the upper edge of step.
5, device according to claim 3 is characterized in that: the outer end of described guide sleeve also is equipped with elastic sleeve and is used for fastening this elastic sleeve and makes it can reach the fastening piece of sealing after pipe fitting is installed.
6, device according to claim 3 is characterized in that: the part that described guide sleeve extends casing also is provided with protection apron.
7, device according to claim 2 is characterized in that: the edge of described auxiliary casing is provided with the Baltimore groove that can insert described casing upper edge, and is provided with elasticity and binding material in this Baltimore groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111279 CN1260504C (en) | 2003-03-27 | 2003-03-27 | Device used in welding pipeline under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111279 CN1260504C (en) | 2003-03-27 | 2003-03-27 | Device used in welding pipeline under water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1533861A true CN1533861A (en) | 2004-10-06 |
| CN1260504C CN1260504C (en) | 2006-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03111279 Expired - Fee Related CN1260504C (en) | 2003-03-27 | 2003-03-27 | Device used in welding pipeline under water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1260504C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133692A (en) * | 2010-01-21 | 2011-07-27 | 中国石油天然气集团公司 | Floating butt-welding device for submarine pipeline |
| CN101553337B (en) * | 2006-11-07 | 2011-09-14 | 阿海珐核能公司 | Device and method for automatic under-water welding for making a welding joint on a surface |
| CN102198577A (en) * | 2011-04-13 | 2011-09-28 | 胜利油田胜利石油化工建设有限责任公司 | Gunwale welding operating shed for laying submarine pipelines |
| CN103898922A (en) * | 2012-12-31 | 2014-07-02 | 中交第一航务工程局有限公司 | Pipe joint butt joint and guide device |
| CN105042186A (en) * | 2015-06-30 | 2015-11-11 | 中国海洋石油总公司 | Device and method for maintaining and replacing vertical crude oil pipe of offshore platform |
| CN111891313A (en) * | 2020-06-24 | 2020-11-06 | 中船澄西船舶修造有限公司 | Pipe installation structure and method for preventing main pipe in ship from being bent due to pipe fouling |
-
2003
- 2003-03-27 CN CN 03111279 patent/CN1260504C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553337B (en) * | 2006-11-07 | 2011-09-14 | 阿海珐核能公司 | Device and method for automatic under-water welding for making a welding joint on a surface |
| CN102133692A (en) * | 2010-01-21 | 2011-07-27 | 中国石油天然气集团公司 | Floating butt-welding device for submarine pipeline |
| CN102198577A (en) * | 2011-04-13 | 2011-09-28 | 胜利油田胜利石油化工建设有限责任公司 | Gunwale welding operating shed for laying submarine pipelines |
| CN102198577B (en) * | 2011-04-13 | 2014-02-19 | 中石化胜利油建工程有限公司 | Gunwale welding operating shed for laying submarine pipelines |
| CN103898922A (en) * | 2012-12-31 | 2014-07-02 | 中交第一航务工程局有限公司 | Pipe joint butt joint and guide device |
| CN103898922B (en) * | 2012-12-31 | 2016-09-14 | 中交第一航务工程局有限公司 | Tube coupling butt guiding devices |
| CN105042186A (en) * | 2015-06-30 | 2015-11-11 | 中国海洋石油总公司 | Device and method for maintaining and replacing vertical crude oil pipe of offshore platform |
| CN105042186B (en) * | 2015-06-30 | 2017-11-24 | 中海油能源发展股份有限公司 | Crude oil of offshore platform standpipe repairs more changing device and crude oil standpipe maintenance replacing options |
| CN111891313A (en) * | 2020-06-24 | 2020-11-06 | 中船澄西船舶修造有限公司 | Pipe installation structure and method for preventing main pipe in ship from being bent due to pipe fouling |
| CN111891313B (en) * | 2020-06-24 | 2022-04-19 | 中船澄西船舶修造有限公司 | Pipe installation structure and method for preventing main pipe in ship from being bent due to pipe fouling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1260504C (en) | 2006-06-21 |
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