CN114871683A - Steel pipe flange connection construction process - Google Patents

Steel pipe flange connection construction process Download PDF

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Publication number
CN114871683A
CN114871683A CN202210602363.7A CN202210602363A CN114871683A CN 114871683 A CN114871683 A CN 114871683A CN 202210602363 A CN202210602363 A CN 202210602363A CN 114871683 A CN114871683 A CN 114871683A
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CN
China
Prior art keywords
fixedly connected
flange
plate
pipe
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210602363.7A
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Chinese (zh)
Inventor
马迅
熊正朝
田兴
付鸣
依力亚斯·库尔班
明皓
郭福天
王冰骋
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Beijing Urban Construction Group Co Ltd
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Beijing Urban Construction Group Co Ltd
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Publication date
Application filed by Beijing Urban Construction Group Co Ltd filed Critical Beijing Urban Construction Group Co Ltd
Priority to CN202210602363.7A priority Critical patent/CN114871683A/en
Publication of CN114871683A publication Critical patent/CN114871683A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02Cleaning by the force of jets, e.g. blowing-out cavities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/06Tubes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention belongs to the technical field of pipeline flanges, and particularly relates to a steel pipe flange connection construction process, which comprises the following steps; the center of the flange and the center of the pipe are on the same straight line, and the sealing surface of the flange is vertical to the center of the pipe; when the flat welding flange is assembled with a pipe, the flange is sleeved into a pipe end, a certain distance is reserved between a pipe opening and a flange sealing surface, and the pipe is fixed through a fixing assembly; remove locating plate to flange dish side end department, the elasticity of elastic component makes flexible ejector pin lapse, thereby the slip of flexible ejector pin makes splint slide to the ring flange, and then makes position fixing plate and splint add to hold fixedly to the ring flange, carries out weldment work after the ring flange rigidity, and is better than traditional handheld mode efficiency, can not shake because of the hand and make the ring flange change.

Description

Steel pipe flange connection construction process
Technical Field
The invention belongs to the technical field of pipeline flanges, and particularly relates to a steel pipe flange connection construction process.
Background
The pipe flanges are classified into the following six basic types according to the connection mode with the pipe: a flat welding flange, a butt welding flange, a socket welding flange, a loose sleeve flange, a threaded flange and an integral flange.
The flat welding flange is mainly used under the condition that the medium condition is mild, such as low-pressure non-purified compressed air and low-pressure circulating water, and has the advantage of low price; the most commonly used type of welding neck flange is a butt weld connection to the pipe, the quality of the welded joint is good, and the neck of the flange can withstand the harsher conditions by means of a taper transition.
In the prior art, when a traditional pipeline is welded with a flange, after the position of the pipeline needs to be fixed, the flange is held by one hand, and a welding device is held by the other hand to be welded with the pipeline, but the welding time is long, the hand of a worker easily shakes, so that the flange inclines and changes, the welding quality of the flange and the pipeline is affected, and the steel pipe flange connection construction process is provided.
Disclosure of Invention
In order to solve the problems, the invention provides a steel pipe flange connection construction process.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a steel pipe flange connection construction process, which comprises the following steps;
s1: the center of the flange and the center of the pipe are on the same straight line, and the sealing surface of the flange is vertical to the center of the pipe;
s2: when the flat welding flange is assembled with a pipe, the flange is sleeved into a pipe end, a certain distance is reserved between a pipe opening and a flange sealing surface, and the pipe is fixed through a fixing assembly;
s3: spot welding is carried out on any one of two sides of the pipe, the flange bent ruler or the angle ruler is used for aligning the opposite surface of the spot welding position, and spot welding is carried out on the aligning position of the bent ruler after alignment, so that welding connection is completed.
Preferably, the fixing component in S2 includes a pipe body, a flange and a second positioning block; a flange plate is fixedly connected to the side end of the pipe body; a pipe body is arranged on the second positioning block; a first positioning block is arranged on the second positioning block; one end of the first positioning block is provided with a positioning plate; a positioning plate is fixedly connected to the positioning plate; the position fixing plate is connected with a limiting rod in a sliding manner; the top end of the limiting rod is fixedly connected with a top plate; the bottom end of the top plate is fixedly connected with a telescopic rod; an elastic part is fixedly connected inside the telescopic rod; the bottom end of the elastic part is fixedly connected with a telescopic ejector rod; the bottom end of the telescopic ejector rod is fixedly connected with a clamping plate.
Preferably, the top end of the clamping plate is fixedly connected with a shell; an air bag is fixedly connected inside the shell; the inner side wall of the shell is connected with an extrusion plate in a sliding manner; the shell is fixedly connected with a one-way valve; the air bag is fixedly connected with one end of the air pipe, and the other end of the air pipe is fixedly connected with the clamping plate.
Preferably, a base is fixedly connected to the side end of the second positioning block; the base is rotatably connected with a rotating rod; a limiting sliding block is fixedly connected to the side end of the first positioning block; the top end of the rotating rod is fixedly connected with a rotating disk; the limiting sliding block is in threaded connection with the rotating rod; one end of the second positioning block is fixedly connected with a limiting sliding rod.
Preferably, the clamping plate is fixedly connected with a hinged wheel; the hinged wheel is rotatably connected with a fixed plate; a spring is fixedly connected inside the clamping plate; and the bottom end of the spring is fixedly connected with a top block.
Preferably, the fixed plate is fixedly connected with an elastic block inside; an elastic pressing block is fixedly connected inside the elastic block.
Preferably, an adsorption block is fixedly connected inside the positioning plate; a magnet piece is fixedly connected inside the second positioning block; a sliding groove is formed in the first positioning block; the sliding chute is connected with a positioning plate in a sliding manner.
Preferably, the top end of the top plate is fixedly connected with a pull ring; an anti-skid plate is fixedly connected to the inner side wall of the second positioning block; the antiskid plate is made of rubber.
The invention has the beneficial effects that:
1. the invention provides a steel pipe flange connection construction process, wherein a positioning plate is moved to the side end of a flange plate, a telescopic ejector rod is made to slide downwards by the elasticity of an elastic part, a clamping plate is made to slide towards the flange plate by the sliding of the telescopic ejector rod, and then the flange plate is fixedly held by the positioning plate and the clamping plate, and the flange plate is welded after the position of the flange plate is fixed.
2. The invention provides a steel pipe flange connection construction process, which is characterized in that a clamping plate slides upwards, so that a pressing plate can press an air bag by the sliding of a shell, the pressing of the pressing plate can discharge air in the air bag from an air pipe, the air can blow away dust on the surface of a flange plate by the discharge of the air from the air pipe, and the situation that the clamping plate slips is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a first embodiment of the present invention;
FIG. 2 is a perspective view of the first embodiment;
FIG. 3 is a cross-sectional view of the first embodiment;
FIG. 4 is a perspective view of a positioning plate according to the first embodiment;
FIG. 5 is an enlarged view taken at A in FIG. 3;
FIG. 6 is an enlarged view at B in FIG. 2;
FIG. 7 is a schematic view of another embodiment of the retention plate structure of the second embodiment;
illustration of the drawings:
1. a pipe body; 12. a flange plate; 13. a first positioning block; 14. a second positioning block; 15. positioning a plate; 16. a position-retaining plate; 17. a top plate; 18. a limiting rod; 20. a splint; 21. a telescopic rod; 22. a telescopic ejector rod; 23. A housing; 24. a pressing plate; 25. an air bag; 26. a one-way valve; 27. an air tube; 28. a hinged wheel; 29. fixing a plate; 30. a spring; 32. a top block; 33. an elastic block; 34. elastic pressing blocks; 35. a base; 36. rotating the rod; 37. a limiting slide block; 38. rotating the disc; 39. an adsorption block; 391. a chute; 40. an anti-skid plate; 41. A pull ring; 42. and a pull rod is reset.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-6, a steel pipe flange connection construction process includes the following steps;
s1: the center of the flange and the center of the pipe are on the same straight line, and the sealing surface of the flange is vertical to the center of the pipe;
s2: when the flat welding flange is assembled with a pipe, the flange is sleeved into a pipe end, a certain distance is reserved between a pipe opening and a flange sealing surface, and the pipe is fixed through a fixing assembly;
s3: spot welding is carried out on any one of two sides of the pipe, the flange bent ruler or the angle ruler is used for aligning the opposite surface of the spot welding position, and spot welding is carried out on the aligning position of the bent ruler after alignment, so that welding connection is completed.
The fixing assembly in the S2 comprises a pipe body 1, a flange plate 12 and a second positioning block 14; a flange plate 12 is fixedly connected to the side end of the pipe body 1; a pipe body 1 is arranged on the second positioning block 14; a first positioning block 13 is arranged on the second positioning block 14; one end of the first positioning block 13 is provided with a positioning plate 15; a positioning plate 16 is fixedly connected to the positioning plate 15; the position-fixing plate 16 is connected with a limiting rod 18 in a sliding manner; the top end of the limiting rod 18 is fixedly connected with a top plate 17; the bottom end of the top plate 17 is fixedly connected with an expansion link 21; an elastic part is fixedly connected inside the telescopic rod 21; the bottom end of the elastic part is fixedly connected with a telescopic ejector rod 22; the bottom end of the telescopic ejector rod 22 is fixedly connected with a clamping plate 20; when the pipe welding machine works, after the position of a traditional pipeline is required to be fixed, one flange is held by hand, the other welding device is held by hand to be welded with the pipeline, but the welding time is long, the hand of a worker is easy to shake, the flange is easy to incline and change, and the welding quality of the flange and the pipeline is affected, before the pipe welding machine works, the pipe body 1 is placed on the second positioning block 14, the flange plate 12 is sleeved at the port of the pipe body 1, the first positioning block 13 is installed on the pipe body 1, the pipe body 1 is fixedly held by the second positioning block 14 and the first positioning block 13, the clamping plate 20 slides upwards, the positioning plate 15 is moved to the side end of the flange plate 12, the flange plate 12 is positioned between the positioning plate 16 and the clamping plate 20, the top end of the positioning plate 16 is contacted with the bottom end of the flange plate 12, the sliding of the clamping plate 20 is released, and the elastic piece inside the telescopic rod 21 enables the telescopic ejector rod 22 to slide downwards, the sliding of the telescopic ejector rod 22 makes the clamping plate 20 slide towards the flange 12, and further makes the retaining plate 16 and the clamping plate 20 clamp and fix the flange 12, so that the flange 12 is not inclined or changed in position due to shaking of hands during the welding process, and at this time, a worker welds the pipe body 1 and the flange 12 by using a welding device.
A shell 23 is fixedly connected to the top end of the clamping plate 20; an air bag 25 is fixedly connected inside the shell 23; the inner side wall of the shell 23 is connected with an extrusion plate 24 in a sliding way; a one-way valve 26 is fixedly connected to the shell 23; one end of an air pipe 27 is fixedly connected to the air bag 25, and the other end of the air pipe is fixedly connected to the splint 20; when locating plate 15 moves to flange 12 side end, slide splint 20 upwards, thereby the slip of splint 20 makes casing 23 slide together, the slip of casing 23 can make stripper plate 24 extrude gasbag 25, the inside packing of gasbag 25 has gas, the extrusion of stripper plate 24 can make the inside gas of gasbag 25 discharge from trachea 27, gas discharges from trachea 27 can blow away the dust on the surface of flange 12, reduce the dust on the surface of flange 12, the dust can influence the fixed of splint 20 to flange 12, too much dust can make splint 20 take place the condition of skidding, casing 23 restores to the throne through the elasticity of elastic component, check valve 26 can help gasbag 25 to fill new gas, gas can not discharge from check valve 26.
A base 35 is fixedly connected to the side end of the second positioning block 14; a rotating rod 36 is rotatably connected to the base 35; a limiting sliding block 37 is fixedly connected to the side end of the first positioning block 13; a rotating disc 38 is fixedly connected to the top end of the rotating rod 36; the limiting sliding block 37 is in threaded connection with the rotating rod 36; one end of the second positioning block 14 is fixedly connected with a limiting slide rod; after the pipe body 1 is placed on the second positioning block 14, the rotating disc 38 is rotated, so that the rotating rod 36 rotates, so that the limiting sliding block 37 slides downwards, the limiting sliding block 37 can drive the first positioning block 13 to slide downwards together, the first positioning block 13 covers the pipe body 1, the pipe body 1 is clamped and fixed through the first positioning block 13 and the second positioning block 14, the pipe body 1 and the flange plate 12 are conveniently welded, the limiting sliding block 37 cannot easily rotate through threads on the rotating rod 36, the limiting rod of the second positioning block 14 can enable the first positioning block 13 to normally slide towards the second positioning block 14, and the situation that the limiting sliding block 37 and the first positioning block 13 rotate together due to the rotation of the rotating rod 36 is avoided.
A hinged wheel 28 is fixedly connected to the clamping plate 20; the hinge wheel 28 is rotatably connected with a fixed plate 29; a spring 30 is fixedly connected inside the clamping plate 20; the bottom end of the spring 30 is fixedly connected with a top block 32; when the clamping plate 20 slides towards the flange plate 12, the fixed plate 29 firstly contacts with the flange plate 12, the fixed plate 29 rotates through the hinge wheel 28, the flange plate 12 extrudes the fixed plate 29, the fixed plate 29 is soft and deformable, rubber of the fixed plate 29 has good anti-skid performance, shaking and other conditions can occur in the welding process, so that the flange plate 12 slides and rotates, the rotation condition of the flange plate 12 can be reduced through the fixed plate 29, the top block 32 can extrude the fixed plate 29 through the elasticity of the spring 30, the position of the fixed plate 29 can be limited through the matching of the top block 32 and the spring 30, the flange plate 12 can be extruded through the fixed plate 29 through the elasticity of the spring 30, and the limitation of the position of the flange plate 12 can be improved through the matching of the fixed plate 29 and the spring 30.
An elastic block 33 is fixedly connected inside the fixed plate 29; an elastic pressing block 34 is fixedly connected inside the elastic block 33; the elastic block 33 is made of sponge material and has good elasticity, the elastic pressing block 34 is made of rubber material and has good anti-slip performance, the elastic pressing block 34 can contact the surface of the flange plate 12, the flange plate 12 is pressed through the elastic pressing block 34, the elastic pressing block 34 of the elastic block 33 can be pressed towards the flange plate 12 in an elastic fit mode, the position of the flange plate 12 is limited, and the flange plate 12 is fixedly clamped through the matching clamping plate 20.
An adsorption block 39 is fixedly connected inside the positioning plate 15; a magnet piece is fixedly connected inside the second positioning block 14; a sliding groove 391 is formed in the first positioning block 13; the chute 391 is connected with a positioning plate 15 in a sliding way; the positioning plate 15 can slide on the sliding groove 391, after the flange plate 12 is placed, the positioning plate 15 is slid to the side end of the flange plate 12, and then the positioning plate 15 is pressed downward, so that the adsorption block 39 is attached to the magnet piece, and the positioning plate 15 is fixed on the first positioning block 13 by the magnetic attraction force of the adsorption block 39 and the magnet piece, thereby avoiding the position of the positioning plate 15 from being changed during welding work.
A pull ring 41 is fixedly connected to the top end of the top plate 17; an anti-skid plate 40 is fixedly connected to the inner side wall of the second positioning block 14; the antiskid plate 40 is made of rubber; the rubber of antiskid ribbed tile 40 has good antiskid nature, and No. two locating pieces 14 and a locating piece 13 have the condition that reduces body 1 rotation through antiskid ribbed tile 40, and the staff passes through pull ring 41 and conveniently slides, pulls up roof 17 to improve the convenience of locating plate 15.
Example two
Referring to fig. 7, in the first comparative example, as another embodiment of the present invention, the reset rod 42 is fixedly connected to the side end of the position-fixing plate 16; during operation, the locating plate 15 is fixedly connected to the position fixing plate 16, the locating plate 15 slides due to the sliding of the position fixing plate 16, and a worker can slide and pull up the position fixing plate 16 conveniently through the reset pull rod 42, so that the convenience of the position fixing plate 16 is improved.
The working principle is as follows: when the pipe welding machine works, after a traditional pipe and a flange are welded, a flange is held by one hand, a welding device is held by the other hand to be welded with the pipe after the position of the pipe is required to be fixed, but the welding time is long, the hands of workers are easy to shake, the flange is easy to incline and change, and the welding quality problem of the flange and the pipe is influenced, before the pipe welding machine works, a pipe body 1 is firstly placed on a second positioning block 14, a flange plate 12 is sleeved at the port of the pipe body 1, a first positioning block 13 is installed on the pipe body 1, the pipe body 1 is fixedly held by the second positioning block 14 and the first positioning block 13, a clamping plate 20 slides upwards, a positioning plate 15 is moved to the side end of the flange plate 12, the flange plate 12 is positioned between a positioning plate 16 and the clamping plate 20, the top end of the positioning plate 16 is contacted with the bottom end of the flange plate 12, the sliding of the clamping plate 20 is released, and the elasticity of an elastic piece in a telescopic rod 21 enables a telescopic ejector rod 22 to slide downwards, the telescopic ejector rod 22 slides to enable the clamping plate 20 to slide towards the flange 12, and further enable the position-retaining plate 16 and the clamping plate 20 to clamp and fix the flange 12, so that the flange 12 cannot incline and change positions due to hand shaking in the welding process, and at the moment, a worker welds the pipe body 1 and the flange 12 by using a welding device; when the positioning plate 15 moves to the side end of the flange 12, the clamping plate 20 slides upwards, the clamping plate 20 slides so that the shell 23 slides together, the sliding of the shell 23 can enable the extrusion plate 24 to extrude the air bag 25, the air bag 25 is filled with air, the air in the air bag 25 can be exhausted from the air pipe 27 by the extrusion of the extrusion plate 24, the air exhausted from the air pipe 27 can blow away dust on the surface of the flange 12, the dust on the surface of the flange 12 is reduced, the dust can influence the fixing of the clamping plate 20 on the flange 12, the excessive dust can enable the clamping plate 20 to slip, the shell 23 is elastically restored through the elastic piece, the check valve 26 can help the air bag 25 to be filled with new air, and the air cannot be exhausted from the check valve 26; after the pipe body 1 is placed on the second positioning block 14, the rotating disc 38 is rotated, so that the rotating rod 36 rotates, so that the limiting sliding block 37 slides downwards, the limiting sliding block 37 can drive the first positioning block 13 to slide downwards together, the first positioning block 13 covers the pipe body 1, the pipe body 1 is clamped and fixed through the first positioning block 13 and the second positioning block 14, the pipe body 1 and the flange plate 12 are conveniently welded, the limiting sliding block 37 cannot easily rotate through threads on the rotating rod 36, the limiting rod of the second positioning block 14 can enable the first positioning block 13 to normally slide towards the second positioning block 14, and the situation that the limiting sliding block 37 and the first positioning block 13 rotate together due to the rotation of the rotating rod 36 is avoided.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (8)

1. The steel pipe flange connection construction process is characterized in that: the process comprises the following steps;
s1: the center of the flange and the center of the pipe are on the same straight line, and the sealing surface of the flange is vertical to the center of the pipe;
s2: when the flat welding flange is assembled with a pipe, the flange is sleeved into a pipe end, a certain distance is reserved between a pipe opening and a flange sealing surface, and the pipe is fixed through a fixing assembly;
s3: spot welding is carried out on any one of two sides of the pipe, the flange bent ruler or the angle ruler is used for aligning the opposite surface of the spot welding position, and spot welding is carried out on the aligning position of the bent ruler after alignment, so that welding connection is completed.
2. The steel pipe flange connection construction process according to claim 1, characterized in that: the fixing assembly in the S2 comprises a pipe body (1), a flange plate (12) and a second positioning block (14); a flange plate (12) is fixedly connected to the side end of the pipe body (1); a pipe body (1) is arranged on the second positioning block (14); a first positioning block (13) is arranged on the second positioning block (14); one end of the first positioning block (13) is provided with a positioning plate (15); a positioning plate (16) is fixedly connected to the positioning plate (15); the position-fixing plate (16) is connected with a limiting rod (18) in a sliding manner; the top end of the limiting rod (18) is fixedly connected with a top plate (17); the bottom end of the top plate (17) is fixedly connected with an expansion link (21); an elastic piece is fixedly connected inside the telescopic rod (21); the bottom end of the elastic part is fixedly connected with a telescopic ejector rod (22); the bottom end of the telescopic ejector rod (22) is fixedly connected with a clamping plate (20).
3. The steel pipe flange connection construction process according to claim 2, characterized in that: a shell (23) is fixedly connected to the top end of the clamping plate (20); an air bag (25) is fixedly connected inside the shell (23); the inner side wall of the shell (23) is connected with an extrusion plate (24) in a sliding manner; a one-way valve (26) is fixedly connected to the shell (23); one end of an air pipe (27) is fixedly connected to the air bag (25), and the other end of the air pipe is fixedly connected to the splint (20).
4. The steel pipe flange connection construction process according to claim 3, characterized in that: a base (35) is fixedly connected to the side end of the second positioning block (14); a rotating rod (36) is rotatably connected to the base (35); a limiting sliding block (37) is fixedly connected to the side end of the first positioning block (13); the top end of the rotating rod (36) is fixedly connected with a rotating disc (38); the limiting sliding block (37) is in threaded connection with the rotating rod (36); one end of the second positioning block (14) is fixedly connected with a limiting sliding rod.
5. The steel pipe flange connection construction process according to claim 4, characterized in that: a hinged wheel (28) is fixedly connected to the clamping plate (20); the hinge wheel (28) is rotatably connected with a fixed plate (29); a spring (30) is fixedly connected inside the clamping plate (20); the bottom end of the spring (30) is fixedly connected with a top block (32).
6. The steel pipe flange connection construction process according to claim 5, characterized in that: an elastic block (33) is fixedly connected inside the fixed plate (29); an elastic pressing block (34) is fixedly connected inside the elastic block (33).
7. The steel pipe flange connection construction process according to claim 6, characterized in that: an adsorption block (39) is fixedly connected inside the positioning plate (15); a magnet piece is fixedly connected inside the second positioning block (14); a sliding groove (391) is formed in the first positioning block (13); the sliding chute (391) is connected with a positioning plate (15) in a sliding way.
8. The steel pipe flange connection construction process according to claim 7, characterized in that: a pull ring (41) is fixedly connected to the top end of the top plate (17); an anti-skid plate (40) is fixedly connected to the inner side wall of the second positioning block (14); the antiskid plate (40) is made of rubber.
CN202210602363.7A 2022-05-30 2022-05-30 Steel pipe flange connection construction process Pending CN114871683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210602363.7A CN114871683A (en) 2022-05-30 2022-05-30 Steel pipe flange connection construction process

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Application Number Priority Date Filing Date Title
CN202210602363.7A CN114871683A (en) 2022-05-30 2022-05-30 Steel pipe flange connection construction process

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Publication Number Publication Date
CN114871683A true CN114871683A (en) 2022-08-09

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CN214868456U (en) * 2021-08-05 2021-11-26 江西浩德通风设备有限公司 Efficient welding tool mechanism for air pipe flange
CN216326098U (en) * 2021-10-26 2022-04-19 徐州康迪管业有限公司 Flange welding auxiliary device of nonrust steel pipe

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CN216326098U (en) * 2021-10-26 2022-04-19 徐州康迪管业有限公司 Flange welding auxiliary device of nonrust steel pipe

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