CN101761721A - Connection method for pipe branching from opening at external arc of elbow by using branch pipe seat - Google Patents
Connection method for pipe branching from opening at external arc of elbow by using branch pipe seat Download PDFInfo
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- CN101761721A CN101761721A CN201010107957A CN201010107957A CN101761721A CN 101761721 A CN101761721 A CN 101761721A CN 201010107957 A CN201010107957 A CN 201010107957A CN 201010107957 A CN201010107957 A CN 201010107957A CN 101761721 A CN101761721 A CN 101761721A
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- elbow
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Abstract
The invention relates to a connection method for a pipe branch from an opening at external arc of an elbow by using a branch pipe seat, which is applied to the connection for the pipe branch in an industrial metal pipe. The method comprises the following processes: firstly, the branch pipe seat is leaned on the external arc of the elbow for positioning the branch location, and an opening line of the elbow is drawn according to the shape of an inner hole at the root of the branch pipe seat; then, opening is carried on the elbow along the opening line, and the inner hole at the root of the branch pipe seat is connected with the opening of the elbow by welding; finally, the branch pipe and the branch pipe end of the branch pipe seat are connected with each other by butt welding, socket welding or by screw thread. The method does not need on-site processing and manufacturing, also does not need to manufacture or purchase a reinforcing ring and the like additionally and can be favorable for the safe operation of the pipe.
Description
(1) technical field
The present invention relates to a kind of branch holder that uses and carry out the connecting means of pipe branch from the perforate of elbow outer arc.Being used for the Industrial Metal pipeline carries out butt welding, the SOCKET WELDING of pipe branch or is threaded.Metal conduit link technical field.
(2) background technique
In the Industrial Metal pipeline, in the time need connecting from the butt welding that pipe branch is carried out in the perforate of elbow outer arc, its linkage structure as shown in Figure 1: at first arm 4 ends that will be connected with elbow 1 are made into shape that the curved surface profile with elbow 1 outer arc matches and at arm 4 ends making bevel for welding; Again arm 4 ends are leaned against on elbow 1 outer arced surface and find branch location accurately, mark the line of perforations of elbow 1 by hole shape in arm 4 ends; Then along line to elbow 1 perforate, be weldingly connected after arm 4 end endoporus and elbow 1 perforate aligned.Intensity reduces after the pipeline tapping, need carry out reinforcement for openings, adopts the mode of stiffening ring 5 to carry out reinforcement usually.Therefore to make the stiffening ring 5 that a surface conforms to elbow 1 outer arc surface configuration with steel plate, it is inserted in arm 4 is placed on the elbow 1, endoporus and outer rim along stiffening ring 5 adopt the mode of built-up welding to be welded on the elbow 1, and stiffening ring 5 melts the effect that metal plays reinforcement for openings jointly with applying of bead-on-plate weld 6.Its shortcoming is:
1) need the end of on-the-spot processing and fabricating branch pipe(tube), it is conformed to elbow outer arc surface and process bevel for welding, difficulty is bigger;
2) need to make in addition or purchase stiffening ring and carry out the welding of branch pipe(tube) and stiffening ring respectively, the engineering time is long;
3) sudden change from the elbow internal diameter to a bore causes the rapid change of pressure medium, is unfavorable for the safe operation of pipeline.
In the Industrial Metal pipeline, in order to improve pipeline quality, the following pipeline connection of nominal outside diameter 50mm adopts socket welded mode to carry out usually.When need be when the SOCKET WELDING of elbow 1 outer arc perforate carrying out pipe branch connects, its linkage structure as shown in Figure 2: at first an end of the short arm 7 that will be connected with elbow 1 is made into shape that the curved surface profile with elbow 1 outer arc matches and at this end making bevel for welding; This end that to lack arm 7 again leans against on elbow 1 outer arced surface finds branch location accurately, marks the line of perforations of elbow 1 by hole shape in its end; Then along line to elbow 1 perforate, be weldingly connected after the internal diameter of short arm 7 these ends and elbow 1 perforate aligned.Intensity reduces after the pipeline tapping, need carry out reinforcement for openings, usually adopt the mode of stiffening ring 5 to carry out reinforcement, therefore to make the stiffening ring 5 that a surface conforms to elbow 1 outer arc surface configuration with steel plate, it is inserted in short arm 7 is placed on the elbow 1, endoporus and outer rim along stiffening ring 5 adopt the mode of built-up welding to be welded on the elbow 1, and stiffening ring 5 melts the effect that metal plays reinforcement for openings jointly with applying of bead-on-plate weld 6; One end of the other end of short arm 7 and arm 4 is inserted respectively carry out SOCKET WELDING in the socket joint hole of double-bellmouth pipe collar 8 and be connected.Its shortcoming is:
1) need the end of the short arm of on-the-spot processing and fabricating, it is conformed to elbow outer arc surface and process bevel for welding, difficulty is bigger;
2) need to make in addition or buying stiffening ring and double-bellmouth pipe collar; Need lack the welding of arm and stiffening ring respectively, the engineering time is long;
3) sudden change from the elbow internal diameter to a short bore can cause the rapid change of pressure medium, is unfavorable for the safe operation of pipeline.
In the Industrial Metal pipeline, when when being threaded of pipe branch carried out in the perforate of elbow outer arc, its linkage structure such as Fig. 3: at first make screw thread short tube 7 in an end machining screw of short tube, the other end is made into shape that the curved surface profile with elbow 1 outer arc matches and makes bevel for welding along the end circumference; Find leaning against on elbow 1 outer arced surface of screw thread short tube 7 accurately branch location again, mark the line of perforations of elbow 1 by its inner end diameter shape with the elbow connecting end; Then along line to elbow 1 perforate, be weldingly connected after the internal diameter of screw thread short tube 7 and elbow connecting end and elbow 1 perforate aligned; Intensity reduces after the pipeline tapping, need carry out reinforcement for openings, usually adopt the mode of stiffening ring 5 to carry out reinforcement, therefore to make the stiffening ring 5 that a surface conforms to elbow 1 outer arc surface configuration with steel plate, it is inserted in screw thread short tube 7 is placed on the elbow 1, endoporus and outer rim along stiffening ring 5 adopt the mode of built-up welding to be welded on the elbow 1, and stiffening ring 5 melts the effect that metal plays reinforcement for openings jointly with applying of bead-on-plate weld 6; Screw thread short tube 7 and arm 4 usefulness screw thread pipe collars 8 are threaded.Its shortcoming is:
1) need the end of on-the-spot processing and fabricating screw thread short tube, it is conformed to elbow outer arc surface and process bevel for welding, difficulty is bigger;
2) need to make in addition or buying stiffening ring and screw thread pipe collar;
3) need carry out the welding of screw thread short tube and stiffening ring respectively, the engineering time is long;
4) sudden change from the elbow internal diameter to screw thread short tube internal diameter can cause the rapid change of pressure medium, is unfavorable for the safe operation of pipeline.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of and do not need on-the-spot processing and fabricating, do not need to make in addition or buying stiffening ring etc. and the use branch holder that is beneficial to the safe operation of pipeline carry out the connecting means of pipe branch from the perforate of elbow outer arc.
The object of the present invention is achieved like this: a kind of branch holder that uses carries out the connecting means of pipe branch from the perforate of elbow outer arc, described method comprises following manufacturing process: at first the root endoporus of branch holder is set to taper hole, branch holder is leaned against on the outer arced surface of elbow and find branch location accurately, mark the line of perforations of elbow by hole shape in the root of branch holder; Then along this line of perforations to the elbow perforate, be weldingly connected after the root endoporus of branch holder and elbow perforate aligned; Again arm is connected with a tube end of branch holder.The deposited molten metal of reinforcement shape that branch holder itself has and the weld seam that is connected with elbow plays the effect of reinforcement for openings jointly.
Described method can be the butt welding connecting means, and specific practice is that arm is connected with a tube end butt welding of branch holder.
Described method also can be the SOCKET WELDING connecting means, and specific practice connects for carrying out SOCKET WELDING in the socket joint hole, end of arm being inserted branch holder.
Described method can also be threaded connection method, and specific practice is for to be threaded arm with branch holder.
In the Industrial Metal pipeline, when need be when butt welding, the SOCKET WELDING of pipe branch be carried out in the perforate of elbow outer arc or be threaded, the present invention realizes from the branch's connection of elbow outer arc perforate and the reinforcement for openings of pipeline by branch holder is linked to each other with branch pipe(tube) butt welding respectively, SOCKET WELDING or screw thread with elbow; The cone structure of the inner gradual change of branch holder has improved the situation that pressure medium changes, and helps the safe operation of pipeline.
The invention has the beneficial effects as follows:
1) bevel for welding of branch holder is made by factory and is finished, and has saved the time of the bevel for welding that the job site processing and fabricating conforms to elbow outer arc surface;
2) the reinforcement shape that has of branch holder itself and the molten metal of applying of welding line played the effect of reinforcement for openings does not jointly need to use reinforcement in addition such as stiffening ring;
3) cone structure of the inner gradual change of branch holder has improved the situation that pressure medium changes, and helps the safe operation of pipeline.
(4) description of drawings
Fig. 1 was for carried out the butt welding linkage structure schematic representation of pipe branch in the past from the perforate of elbow outer arc.
Fig. 2 was for carried out the SOCKET WELDING linkage structure schematic representation of pipe branch in the past from the perforate of elbow outer arc.
Fig. 3 was for carried out the screw connection structure schematic representation of pipe branch in the past from the perforate of elbow outer arc.
Fig. 4 uses branch holder for the embodiment of the invention 1 and carries out the butt welding connection diagram of pipe branch from the perforate of elbow outer arc.
Fig. 5 uses branch holder for the embodiment of the invention 2 and carries out the SOCKET WELDING connection diagram of pipe branch from the perforate of elbow outer arc.
Fig. 6 uses branch holder for the embodiment of the invention 3 and carries out the schematic representation that is threaded of pipe branch from the perforate of elbow outer arc.
Reference character among the figure:
(5) embodiment
Embodiment 1: the butt welding connection method
Referring to Fig. 4, Fig. 4 uses the butt welding connection diagram of branch holder from elbow outer arc perforate carrying out pipe branch for the present invention.As seen from Figure 4, the present invention use branch holder from the perforate of elbow outer arc carry out pipe branch to welding connection method, described method comprises following manufacturing process: at first the root endoporus of branch holder is set to taper hole, branch holder is leaned against on the outer arced surface of elbow and find branch location accurately, mark the line of perforations of elbow by hole shape in the root of branch holder; Then along this line of perforations to the elbow perforate, be weldingly connected after the root endoporus of branch holder and elbow perforate aligned; Again arm is connected with a tube end butt welding of branch holder.
Embodiment 2: the SOCKET WELDING connection method
Referring to Fig. 5, Fig. 5 uses the SOCKET WELDING connection diagram of branch holder from elbow outer arc perforate carrying out pipe branch for the present invention.As seen from Figure 5, embodiment 2 is with embodiment 1 difference: arm is inserted carry out SOCKET WELDING in the socket joint hole, end of branch holder and be connected.
Embodiment 3: method is threaded
Referring to Fig. 6, Fig. 6 uses the SOCKET WELDING connection diagram of branch holder from elbow outer arc perforate carrying out pipe branch for the present invention.As seen from Figure 6, embodiment 3 is with embodiment 1 difference: arm is threaded with branch holder.
Claims (4)
1. one kind is used branch holder to carry out the connecting means of pipe branch from the perforate of elbow outer arc, it is characterized in that described method comprises following manufacturing process: at first the root endoporus of branch holder is set to taper hole, branch holder is leaned against on the outer arced surface of elbow and find branch location accurately, mark the line of perforations of elbow by hole shape in the root of branch holder; Then along this line of perforations to the elbow perforate, be weldingly connected after the root endoporus of branch holder and elbow perforate aligned; Again arm is connected with a tube end of branch holder.
2. a kind of branch holder that uses according to claim 1 carries out the connecting means of pipe branch from the perforate of elbow outer arc, it is characterized in that described method is to welding connection method: described arm is connected with a tube end butt welding of branch holder.
3. a kind of branch holder that uses according to claim 1 carries out the connecting means of pipe branch from the perforate of elbow outer arc, it is characterized in that described method is the SOCKET WELDING connecting means: carry out SOCKET WELDING in the socket joint hole, end with described arm insertion branch holder and connect.
4. a kind of branch holder that uses according to claim 1 carries out the connecting means of pipe branch from the perforate of elbow outer arc, it is characterized in that described method is a threaded connection method: described arm is threaded with branch holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010107957A CN101761721A (en) | 2010-02-03 | 2010-02-03 | Connection method for pipe branching from opening at external arc of elbow by using branch pipe seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010107957A CN101761721A (en) | 2010-02-03 | 2010-02-03 | Connection method for pipe branching from opening at external arc of elbow by using branch pipe seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101761721A true CN101761721A (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010107957A Pending CN101761721A (en) | 2010-02-03 | 2010-02-03 | Connection method for pipe branching from opening at external arc of elbow by using branch pipe seat |
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| CN (1) | CN101761721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111644774A (en) * | 2020-06-08 | 2020-09-11 | 二重集团（镇江）重型装备厂有限责任公司 | Pipe fitting welding structure and process |
-
2010
- 2010-02-03 CN CN201010107957A patent/CN101761721A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111644774A (en) * | 2020-06-08 | 2020-09-11 | 二重集团（镇江）重型装备厂有限责任公司 | Pipe fitting welding structure and process |
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Open date: 20100630 |