CN107378393A - A kind of processing method and processing unit (plant) with branch pipe pipe - Google Patents
A kind of processing method and processing unit (plant) with branch pipe pipe Download PDFInfo
- Publication number
- CN107378393A CN107378393A CN201710556582.5A CN201710556582A CN107378393A CN 107378393 A CN107378393 A CN 107378393A CN 201710556582 A CN201710556582 A CN 201710556582A CN 107378393 A CN107378393 A CN 107378393A
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- Prior art keywords
- branch pipe
- flange
- supervisor
- pipe
- processing method
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The present invention provides a kind of processing method and processing unit (plant) with branch pipe pipe, it belongs to pipeline processing technical field, processing method is included by branch pipe welding equipment first flange and/or to being responsible for welding equipment second flange, saddle port is cut to branch pipe, and connecting hole is bored to supervisor, so that the welding of the welding of branch pipe and first flange, supervisor and second flange is downhand welding, improve crudy and processing efficiency, reduce labor intensity and to labor claim, and postwelding need not polish, and reduce noise and dust pollution.Processing unit (plant) proposed by the present invention, for quickly determining the relative position of branch pipe and supervisor, and fixed branch pipe and supervisor, accurate positioning, time, efficiency high, precision height are saved, improve crudy and processing efficiency, reduce labor intensity and to labor claim.
Description
Technical field
The present invention relates to pipeline processing technical field, more particularly to a kind of processing method with branch pipe pipe and processing dress
Put.
Background technology
Pipe with branch pipe is a kind of currently used pipe.Existing processing method is as follows：The saddle port of branch pipe is processed,
Drilled on supervisor, by branch pipe and supervisor's spot welding assembling；Mounting flange, branch pipe mounting flange are responsible for, flange spot welding is fixed on
On supervisor and branch pipe；Will supervisor and branch pipe junction bottom argon arc welding, CO2 welding caps face, supervisor, branch pipe and flange welding with
And supervisor and branch pipe junction are vertical position welding welding.The processing method has the following disadvantages：
1st, branch pipe saddle port is hand cut, roughing saddle port, then the saddle port of branch pipe is placed on supervisor, to not kissing
The place of conjunction carries out reconditioning and then reconditioning of or else breaking, and low production efficiency, labor intensity is big, requires high to worker；
2nd, adjustment supervisor is complicated with the position of branch pipe, to adjust branch pipe position repeatedly, make branch pipe and the vertical, branch pipe of supervisor and
After gap uniformity, the gap length of supervisor meets that technological requirement, branch pipe are connected with supervisor's spot welding, branch pipe is also adjusted on supervisor
Position, waste time and energy；
3rd, supervisor, the flange of branch pipe are vertical position welding, require high to welder, and appearance of weld is poor, and a large amount of polishing welding seams are wanted after welding,
Labor intensity is big, and high processing costs, welding efficiency is low, produces noise and dust pollution.
The content of the invention
It is an object of the invention to provide a kind of processing method and processing unit (plant) with branch pipe pipe, to solve prior art
Present in low production efficiency, labor intensity is big, requires worker the skill of height, high processing costs, generation noise and dust pollution
Art problem.
As above conceive, the technical solution adopted in the present invention is：
On the one hand, there is provided a kind of processing method with branch pipe pipe, including：
Step S1：To branch pipe welding equipment first flange and/or to being responsible for welding equipment second flange；
Step S2：Saddle port is cut to branch pipe, and connecting hole is bored to supervisor；
Step S3：Adjusted by processing unit (plant) and fix the relative position of the branch pipe and the supervisor, make the saddle
Connecting hole described in mouth face；
Step S4：Weld the supervisor and the junction of the branch pipe.
Wherein, in step sl, to during first flange, the branch pipe is in straight tube state, adopts described in the branch pipe welding equipment
The first flange and the branch pipe are welded with downhand welding mode.
Wherein, in step s 2, when cutting the saddle port to the branch pipe, clamped using cutting machine remote on the branch pipe
From one end of the first flange, one end by being connected with the first flange on the branch pipe adjusts the circumference of the branch pipe
Position, and the axial location of the branch pipe is adjusted, the branch pipe is in the starting point for starting cutting, cut with the cutting machine
The branch pipe.
Wherein, when adjusting the circumferential position of the branch pipe, two first flange alignment pins are inserted into first method
In blue two neighboring bolt hole, the horizon rule with angle is fixed on the first flange alignment pin, adjusts the horizon rule
Angle to setting numerical value, rotate the branch pipe, the Warning Mark on the horizon rule is maintained at horizontal level.
Wherein, the horizon rule positions pin connection by magnetic part and the first flange.
Wherein, in step sl, to during second flange, the supervisor is in straight tube-like state, adopts described in supervisor's welding equipment
The second flange and the supervisor are welded with downhand welding mode.
Wherein, in step s 2, when boring the connecting hole to the supervisor, the supervisor is placed on clamping device and pressed from both sides
Tightly, the circumferential position of the supervisor is adjusted by being connected with one end of the second flange on the supervisor, utilizes perforate machinery
The connecting hole processed on the supervisor.
Wherein, when adjusting the circumferential position of the supervisor, two second flange alignment pins are inserted into second method
In blue two neighboring bolt hole, the horizon rule with angle is fixed on the second flange alignment pin, adjusts the horizon rule
Angle to setting numerical value, rotate the supervisor, the Warning Mark on the horizon rule is maintained at horizontal level.
Wherein, the horizon rule positions pin connection by magnetic part and the second flange.
Wherein, in step s3, by the supervisor in the support block of the processing unit (plant), and the processing is passed through
Supervisor's flange assembling assembly on device is adjusted and positioned, while the branch pipe is arranged on to the movement of the processing unit (plant)
On seat, and the branch pipe flange assembling assembly by being arranged on the Mobile base is adjusted and positioned.
On the other hand, a kind of processing unit (plant) is also provided, including：
Base, multiple support blocks are intervally distributed with thereon, be responsible for for placing；
Flange assembling assembly is responsible for, it is fixedly installed on the base, is placed on for adjusting in the support block
The position of the supervisor, and the supervisor is positioned；
Branch pipe flange assembling assembly, it is movably arranged on the base, for adjusting and fixing branch pipe and the supervisor
Relative position, make described in the saddle port face on the branch pipe connecting hole on supervisor；
Mobile base, the branch pipe flange assembling assembly are flexibly connected by the Mobile base with the base, the movement
Seat is fixed by the first locking device and the base, and the branch pipe flange assembling assembly passes through the second locking device and the shifting
Dynamic seat is fixed.
Beneficial effects of the present invention：
Processing method proposed by the present invention with branch pipe pipe, by being filled to branch pipe welding equipment first flange and/or to supervisor
Second flange is welded, saddle port is cut to branch pipe, and connecting hole is bored to supervisor so that the welding of branch pipe and first flange, Zhu Guanyu
The welding of second flange is downhand welding, improves crudy and processing efficiency, reduces labor intensity and to labor claim,
And postwelding need not polish, and reduce noise and dust pollution；And adjusted by processing unit (plant) and fix branch pipe and the phase being responsible for
To position, accurate positioning, time, efficiency high, precision height are saved.
Processing unit (plant) proposed by the present invention, for adjusting and fixing branch pipe and the relative position of supervisor, make the horse on branch pipe
Connecting hole on saddle mouth face supervisor, accurate positioning, time, efficiency high, precision height are saved, improve crudy and processing is imitated
Rate, reduce labor intensity and to labor claim.
Brief description of the drawings
Fig. 1 is the flow chart of the processing method provided by the invention with branch pipe pipe；
Fig. 2 is the structural representation of processing unit (plant) provided by the invention；
Fig. 3 is the structural representation of the branch pipe flange assembling assembly in Fig. 2；
Fig. 4 is Fig. 3 front view；
Fig. 5 be A-A in Fig. 4 to sectional view；
Fig. 6 is the front view of Fig. 3 another state；
Fig. 7 is the structural representation of supervisor's flange assembling assembly in Fig. 2.
In figure：
10th, branch pipe；20th, it is responsible for；30th, base；40th, support block；50th, branch pipe flange assembling assembly；60th, it is responsible for flange assembling
Component；70th, Mobile base；
501st, the first alignment pin；502nd, first flange support block；503rd, the first lateral adjustments bar；504th, first longitudinal direction is adjusted
Bar；505th, the first central block；506th, the second central block；507th, slide；
601st, the second alignment pin；602nd, second flange support block；603rd, the second lateral adjustments bar；604th, second longitudinal direction is adjusted
Bar；605th, the 3rd central block；606th, the 4th central block；
701st, the first guide rail；702nd, the second guide rail.
Embodiment
Below in conjunction with the accompanying drawings technical scheme is further illustrated with embodiment.It is understood that this place
The specific embodiment of description is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to
It is easy to describe, part related to the present invention is illustrate only in accompanying drawing and not all.
Referring to Fig. 1 to Fig. 7, the embodiment of the present invention provides a kind of processing method with branch pipe pipe, including：
Step S1：To the welding equipment first flange of branch pipe 10 and/or to being responsible for 20 welding equipment second flanges；
Step S2：Saddle port is cut to branch pipe 10, and connecting hole is bored to supervisor 20；
Step S3：Adjusted by processing unit (plant) and fix branch pipe 10 and the relative position of supervisor 20, make saddle port face institute
State connecting hole；
Step S4：Welding supervisor 20 and the junction of branch pipe 10.
The embodiment of the present invention is applied to three kinds of situations：First, the welding equipment first flange of branch pipe 10, the not method of welding equipment second of supervisor 20
It is blue；2nd, the not welding equipment first flange of branch pipe 10,20 welding equipment second flanges are responsible for；3rd, the welding equipment first flange of branch pipe 10, and it is responsible for 20
Welding equipment second flange.
By the way that first flange is arranged on branch pipe 10, saddle port is cut to branch pipe 10；Second flange is arranged on supervisor
On 20, connecting holes are bored to supervisor 20 so that the welding of branch pipe 10 and first flange, be responsible for 20 and the welding of second flange be flat
Weldering, improves crudy and processing efficiency, reduces labor intensity and to labor claim, and postwelding need not polish, drop
Low noise and dust pollution；And by processing unit (plant) adjust branch pipe 10 with supervisor 20 relative position, accurate positioning, save when
Between, efficiency high, precision it is high.
When in step sl, to 10 welding equipment first flange of branch pipe, branch pipe 10 is in straight tube state, is welded using downhand welding mode
First flange and branch pipe 10.Straight tube state refers to not install other parts on branch pipe 10, and branch pipe 10 is not bent, is easy to downhand welding；
Downhand welding is used under straight tube state, crudy is high, and high in machining efficiency, the requirement to workmen is low, and postwelding does not have to specially
Polishing, reduces labor intensity, reduces noise and dust.
In step s 2, when cutting saddle port to branch pipe 10, remote first flange on cutting machine clamping branch pipe 10 is utilized
One end, the circumferential position of branch pipe 10 is adjusted by one end that first flange is connected with branch pipe 10, and adjust the axial direction of branch pipe 10
Position, branch pipe 10 is in the starting point for starting cutting, branch pipe 10 is cut with cutting machine.The saddle of branch pipe 10 is machined using cutting
Mouthful, a cutting forming, without reconditioning repeatedly.It is high in machining efficiency, precision is high.
When adjusting the circumferential position of branch pipe 10, two first flange alignment pins are inserted into the two neighboring spiral shell of first flange
In keyhole, the horizon rule with angle is fixed on first flange alignment pin, the angle of horizon rule is adjusted to the numerical value of setting, turns
Dynamic branch pipe 10, makes the Warning Mark on horizon rule be maintained at horizontal level.In the present embodiment, horizon rule passes through magnetic part and
One flange positions pin connection.Certainly, horizon rule can also position pin connection by other fixtures and first flange, not make herein
Limitation.
The reason for so operating is that two bolts hole of most flange are on same horizontal line, but according to actual work
Condition, two bolts hole of indivedual flanges are designed as line between two bolts hole and horizontal line is angled, using band angle
The horizon rule of degree can be adjusted.Horizon rule with angle is fixed on first flange alignment pin, ensures that both positions are relative
It is fixed.
When in step sl, to 20 welding equipment second flange of supervisor, supervisor 20 is in straight tube state, is welded using downhand welding mode
Second flange and supervisor 20.Downhand welding is used under straight tube state, crudy is high, high in machining efficiency, the requirement to workmen
It is low, and postwelding does not have to special polishing, reduces labor intensity, reduces noise and dust.
In step s 2, when boring connecting hole to supervisor 20, supervisor 20 is placed on clamping device and clamped, by supervisor 20
The circumferential position of one end regulation supervisor 20 of second flange is connected with, utilizes the connecting hole on perforate machinery processing supervisor 20.Even
It can be drilling to connect hole, can also use flame/plasma process.
In the circumferential position of regulation supervisor 20, two second flange alignment pins are inserted into the two neighboring spiral shell of second flange
In keyhole, the horizon rule with angle is fixed on second flange alignment pin, the angle of horizon rule is adjusted to the numerical value of setting, turns
Dynamic supervisor 20, makes the Warning Mark on horizon rule be maintained at horizontal level.In the present embodiment, horizon rule passes through magnetic part and
Two flanges position pin connection.Certainly, horizon rule can also position pin connection by other fixtures and first flange, not make herein
Limitation.
In step s3, will the installation of supervisor 20 when being adjusted by processing unit (plant) and fixing branch pipe 10 with being responsible for 20 position
It is adjusted and positions in the support block 40 of processing unit (plant), and by supervisor's flange assembling assembly 60 of processing unit (plant), simultaneously
Branch pipe 10 is arranged on the Mobile base 70 of processing unit (plant), and the branch pipe flange assembling assembly 50 by being arranged on Mobile base 70
It is adjusted and positions；By mobile Mobile base 70, the connecting hole for making the saddle port face on branch pipe 10 be responsible on 20.
In step s 4, can first spot welding full weld again when welding supervisor 20 is with the junction of branch pipe 10.
The embodiment of the present invention also provides a kind of processing unit (plant), including base 30, supervisor's flange assembling assembly 60, branch pipe flange
Assembling assembly 50 and Mobile base 70.
Multiple support blocks 40 are intervally distributed with base 30；Supervisor's flange assembling assembly 60 is fixedly installed on base 30,
Positioned for adjusting the position for the supervisor 20 being placed in support block 40, and to supervisor 20；Branch pipe flange assembling assembly 50
It is movably arranged on base 30, for adjusting the position between branch pipe 10 and supervisor 20, makes the saddle port face master on branch pipe 10
Connecting hole on pipe 20.
Branch pipe flange assembling assembly 50 is flexibly connected by Mobile base 70 with base 30, and Mobile base 70 is filled by the first locking
Put and fixed with base 30, branch pipe flange assembling assembly 50 is fixed by the second locking device and Mobile base 70.Mobile base 70 includes
The orthogonal guide rail 702 of first guide rail 701 and second, the first guide rail 701 are fixedly connected with base 30, the second guide rail 702 with
First guide rail 701 is slidably connected, and branch pipe flange assembling assembly 50 is slidably connected with the second guide rail 702.
Branch pipe flange assembling assembly 50 includes the first alignment pin 501, first flange support block 502, the first lateral adjustments bar
503rd, first longitudinal direction adjusting rod 504, the first central block 505 and the second central block 506, two the first alignment pins 501 are bolted in
On one lateral adjustments bar 503, first flange support block 502 is bolted on first longitudinal direction adjusting rod 504, the first lateral adjustments bar
503 are spirally connected with the first central block 505, and first longitudinal direction adjusting rod 504 is spirally connected with the second central block 506, the first central block 505 and
Two central blocks 506 are rotatablely connected, and the second central block 506 is fixed.Branch pipe flange assembling assembly 50 also includes slide 507, sliding
Seat 507 is slidably connected with the second guide rail 702.
First locking device (not shown) includes the first screwed hole being opened on the second guide rail 702 and by first
Screwed hole holds out against the first bolt of the first guide rail 701, for being positioned to the second guide rail 702；Second locking device (does not show in figure
Go out) include the second screwed hole for being opened on slide 507 and the bolt that the second guide rail 702 is held out against by the second screwed hole, it is used for
Branch pipe flange assembling assembly 50 is positioned, prevents that the movement of branch pipe 10 causes to misplace in welding process.Certainly, the first locking device
Can also be other structures, as long as can realize after the second guide rail 702 is moved to suitable position along the first guide rail 701, to
Two guide rails 702 are locked, and this is not restricted.Second locking device can also be other structures, as long as can realize
After slide 507 is moved to suitable position along the second guide rail 702, slide 507 is locked, this is not restricted.
When turn the first lateral adjustments bar 503, two the first alignment pins 501 can be along the first lateral adjustments bar 503 to phase
Anti- direction synchronizing moving, two the first alignment pins are adjusted according to the distance between two bolts hole adjacent in first flange
The distance between 501；When turn first longitudinal direction adjusting rod 504, first flange support block 502 can be along first longitudinal direction adjusting rod
504 movements, are adjusted according to the size of first flange, are easy to clamp first flange；When two spiral shells adjacent in first flange
Line and horizontal line between keyhole is in a certain angle, it is necessary to the first lateral adjustments bar 503 be rotated, as shown in Figure 6, first
The first central block 505 is driven to be rotated relative to the second central block 506 in the rotary course of lateral adjustments bar 503, the first central block 505
It is always positioned at the center line of the second central block 506 on straight line.
Being responsible for flange assembling assembly 60 includes the second alignment pin 601, second flange support block 602, the second lateral adjustments bar
603rd, second longitudinal direction adjusting rod 604, the 3rd central block 605 and the 4th central block 606, two the second alignment pins 601 are bolted in
On two lateral adjustments bars 603, second flange support block 602 is bolted on second longitudinal direction adjusting rod 604, the second lateral adjustments bar
603 are spirally connected with the 3rd central block 605, and second longitudinal direction adjusting rod 604 is spirally connected with the 4th central block 606, the 3rd central block 605 and
Four central blocks 606 are rotatablely connected, and the 4th central block 606 is fixed.
It is identical with the operation principle of branch pipe flange assembling assembly 50 to be responsible for flange assembling assembly 60, will not be repeated here.
Embodiment of above is to elaborate the general principle and characteristic of the present invention, and the present invention is not limited by above-mentioned embodiment
System, without departing from the spirit and scope of the present invention, the present invention also have various change and change, and these changes and modifications are all
Fall into scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (11)
- A kind of 1. processing method with branch pipe pipe, it is characterised in that including：Step S1：To branch pipe welding equipment first flange and/or to being responsible for welding equipment second flange；Step S2：Saddle port is cut to branch pipe, and connecting hole is bored to supervisor；Step S3：Adjusted by processing unit (plant) and fix the relative position of the branch pipe and the supervisor, make the saddle port just To the connecting hole；Step S4：Weld the supervisor and the junction of the branch pipe.
- 2. the processing method according to claim 1 with branch pipe pipe, it is characterised in that in step sl, to the branch Described in pipe welding equipment during first flange, the branch pipe is in straight tube state, using downhand welding mode weld the first flange with it is described Branch pipe.
- 3. the processing method according to claim 2 with branch pipe pipe, it is characterised in that in step s 2, to the branch When pipe cuts the saddle port, one end away from the first flange on the branch pipe is clamped using cutting machine, passes through the branch One end that the first flange is connected with pipe adjusts the circumferential position of the branch pipe, and adjusts the axial location of the branch pipe, The branch pipe is in the starting point for starting cutting, the branch pipe is cut with the cutting machine.
- 4. the processing method according to claim 3 with branch pipe pipe, it is characterised in that adjusting the circumference of the branch pipe During position, two first flange alignment pins are inserted into the two neighboring bolt hole of the first flange, by the level with angle Chi is fixed on the first flange alignment pin, is adjusted the angle of the horizon rule to the numerical value of setting, is rotated the branch pipe, make Warning Mark on the horizon rule is maintained at horizontal level.
- 5. the processing method according to claim 4 with branch pipe pipe, it is characterised in that the horizon rule passes through magnetic part Pin connection is positioned with the first flange.
- 6. according to the processing method with branch pipe pipe described in claim any one of 1-5, it is characterised in that in step sl, To during second flange, the supervisor is in straight tube-like state, and second method is welded using downhand welding mode described in supervisor's welding equipment Blue and described supervisor.
- 7. the processing method according to claim 6 with branch pipe pipe, it is characterised in that in step s 2, to the master When pipe bores the connecting hole, the supervisor is placed on clamping device and clamped, by being connected with second method on the supervisor Blue one end adjusts the circumferential position of the supervisor, the connecting hole processed using perforate machinery on the supervisor.
- 8. the processing method according to claim 7 with branch pipe pipe, it is characterised in that adjusting the circumference of the supervisor During position, two second flange alignment pins are inserted into the two neighboring bolt hole of the second flange, by the level with angle Chi is fixed on the second flange alignment pin, is adjusted the angle of the horizon rule to the numerical value of setting, is rotated the supervisor, make Warning Mark on the horizon rule is maintained at horizontal level.
- 9. the processing method according to claim 8 with branch pipe pipe, it is characterised in that the horizon rule passes through magnetic part Pin connection is positioned with the second flange.
- 10. the processing method according to claim 1 with branch pipe pipe, it is characterised in that in step s3, by the master Pipe is adjusted in the support block of the processing unit (plant) by supervisor's flange assembling assembly on the processing unit (plant) And positioning, while the branch pipe is arranged on the Mobile base of the processing unit (plant), and by being arranged on the Mobile base Branch pipe flange assembling assembly is adjusted and positioned.
- A kind of 11. processing unit (plant), it is characterised in that including：Base, multiple support blocks are intervally distributed with thereon, be responsible for for placing；Be responsible for flange assembling assembly, it is fixedly installed on the base, for adjust be placed in the support block described in The position of supervisor, and the supervisor is positioned；Branch pipe flange assembling assembly, it is movably arranged on the base, for adjusting and fixing branch pipe and the phase of the supervisor To position, make the connecting hole on supervisor described in the saddle port face on the branch pipe；Mobile base, the branch pipe flange assembling assembly are flexibly connected by the Mobile base with the base, and the Mobile base leads to Cross the first locking device to fix with the base, the branch pipe flange assembling assembly passes through the second locking device and the Mobile base It is fixed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556582.5A CN107378393B (en) | 2017-07-10 | 2017-07-10 | A kind of processing method and processing unit (plant) with branch pipe pipe |
| PCT/CN2017/100644 WO2019010786A1 (en) | 2017-07-10 | 2017-09-06 | Machining method and device for pipe with branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556582.5A CN107378393B (en) | 2017-07-10 | 2017-07-10 | A kind of processing method and processing unit (plant) with branch pipe pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107378393A true CN107378393A (en) | 2017-11-24 |
| CN107378393B CN107378393B (en) | 2019-11-22 |
Family
ID=60335512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710556582.5A Active CN107378393B (en) | 2017-07-10 | 2017-07-10 | A kind of processing method and processing unit (plant) with branch pipe pipe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107378393B (en) |
| WO (1) | WO2019010786A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789380A (en) * | 2022-11-03 | 2023-03-14 | 无锡市华尔泰机械制造有限公司 | Flange branch pipe table for petroleum transportation and manufacturing process thereof |
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| CN204160119U (en) * | 2014-10-08 | 2015-02-18 | 常州信息职业技术学院 | A kind of large-scale collecting fitting soldering group is to frock |
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| 王怀义等: "《石油化工管道安装设计便查手册》", 31 May 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789380A (en) * | 2022-11-03 | 2023-03-14 | 无锡市华尔泰机械制造有限公司 | Flange branch pipe table for petroleum transportation and manufacturing process thereof |
| CN115789380B (en) * | 2022-11-03 | 2023-12-05 | 无锡市华尔泰机械制造有限公司 | Flange branch pipe table for petroleum transportation and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107378393B (en) | 2019-11-22 |
| WO2019010786A1 (en) | 2019-01-17 |
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Effective date of registration: 20210316 Address after: 511462 No.9, Meide 2nd Road, Zhujiang street, Nansha District, Guangzhou City, Guangdong Province Patentee after: Guangzhou dragon Pipe Industry Co.,Ltd. Address before: 511462 1st floor, No. 68, West Road, Zhujiang administrative district, Nansha District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Shipyard International Co.,Ltd. |