CN113458636A - End socket positioning hole opening and connecting pipe installation method - Google Patents

End socket positioning hole opening and connecting pipe installation method Download PDF

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Publication number
CN113458636A
CN113458636A CN202110695576.4A CN202110695576A CN113458636A CN 113458636 A CN113458636 A CN 113458636A CN 202110695576 A CN202110695576 A CN 202110695576A CN 113458636 A CN113458636 A CN 113458636A
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China
Prior art keywords
connecting pipe
positioning
central axis
seal head
flange
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CN202110695576.4A
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Chinese (zh)
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CN113458636B (en
Inventor
许少华
李�浩
郑龙
周红东
王柳
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Wuhan Yiye Steel Structure Co Ltd
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Wuhan Yiye Steel Structure Co Ltd
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Publication of CN113458636A publication Critical patent/CN113458636A/en
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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
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • 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
    • 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
    • B23K37/0426Fixtures for other work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

The application provides a seal head positioning hole and a connecting pipe installation method, wherein the connecting pipe is positioned on a tool platform, and then a planar positioning point is projected to the surface of a seal head by an infrared projector to determine the center of the hole; in addition, the tool flange is arranged on the plane of the leveled tool platform, the same measuring reference of all tool flanges is ensured, and the relative heights of the tool flange surfaces are uniform; simultaneously, temporarily fastening the tool flange and the connecting flange to ensure the verticality and the levelness of the tool flange; the method can realize batch construction of the same specification, only the connecting flange and the tool flange need to be fastened by bolts, the quick positioning and installation degree is realized, and the efficiency is greatly improved.

Description

End socket positioning hole opening and connecting pipe installation method
Technical Field
The application relates to the field of pressure vessels, in particular to a method for positioning and opening a seal head and installing a connecting pipe.
Background
The sealing head of the pressure container is provided with a plurality of connecting pipes, and the connecting pipes are usually a plurality of safety valve interfaces, liquid level meter interfaces, sampling pipes, cabin cleaning pipes and the like. Because many takeovers on the head will all install precision instruments, the height of butt joint pipe flange face and the straightness requirement of hanging down are all very high. The traditional method for installing the end socket connecting pipe comprises the steps of firstly aligning the end socket, equally dividing an angle, and then positioning the central point of the connecting pipe from the center of the end socket according to the arc length calculated by a drawing. The traditional method mainly depends on detection tools such as a ruler and a level meter to detect the pipe connecting flanges on each end socket with the same specification one by one, and during batch production, the working efficiency is very low, so that the installation precision of each pipe connecting flange cannot be ensured.
Disclosure of Invention
One of the objectives of the present application is to provide a method for positioning and opening a sealing head and installing a connecting pipe, which aims to solve the problem of low installation accuracy of the existing sealing head and connecting pipe.
The technical scheme of the application is as follows:
a method for positioning, perforating and installing a connecting pipe of a seal head comprises the following steps:
firstly, after a tool platform is leveled, determining a transverse central axis and a longitudinal central axis on the upper surface of the tool platform, drawing a circle on the upper surface of the tool platform by taking an intersection point O of the transverse central axis and the longitudinal central axis as a circle center and taking the actual outer diameter of a seal head as a diameter, and respectively marking 0 degree, 90 degrees, 180 degrees and 270 degrees at four intersection points of the circle, the transverse central axis and the longitudinal central axis;
secondly, according to an abscissa value and an ordinate value corresponding to each connecting pipe on a design drawing, respectively making a transverse perpendicular line passing through the transverse central axis and a longitudinal perpendicular line passing through the longitudinal central axis on the upper surface of the tool platform, wherein the intersection point of the transverse perpendicular line and the longitudinal perpendicular line is the positioning central point of the connecting pipe; sequentially finding out the positioning central points of other connecting pipes according to the method;
marking the transverse center line and the longitudinal center line of the end socket, inverting the end socket, and connecting the end socket with a support structure; hoisting the seal head and the support structure to the tooling platform together, wherein the seal head is arranged on the tooling platform through the support structure; adjusting the transverse central line marked on the end socket and the transverse central axis on the tooling platform to be parallel and aligned, adjusting the longitudinal central line marked on the end socket and the longitudinal central axis on the tooling platform to be parallel and aligned, and leveling and aligning the end socket;
step four, two infrared projectors are respectively placed on the transverse vertical line and the longitudinal vertical line where the same positioning central point is located; adjusting the center point and the projection line of one of the infrared projectors to ensure that the first projection line of one of the infrared projectors coincides with the transverse vertical line; adjusting the central point and the projection line of the other infrared projector to ensure that the second projection line of the other infrared projector is coincident with the longitudinal vertical line; finding out an intersection point of the first projection line and the second projection line on the end socket, and marking the intersection point as an opening positioning point of the connecting pipe;
fifthly, moving the seal head away from the tool platform, opening a hole on the seal head according to the marked hole-opening positioning point and the aperture size of the connecting pipe corresponding to the hole-opening positioning point, and processing an assembly welding groove;
step six, processing a tooling flange connected with the connecting flange of the connecting pipe, and respectively fixing the tooling flange on the tooling platform according to the positioning central point and the deflection angle of each connecting pipe;
hoisting the end sockets in the inverted state to the tooling platform again, and slowly descending to ensure that each connecting pipe is inserted to the opening corresponding to the connecting pipe;
step eight, adjusting the transverse central line marked on the seal head and the transverse central axis on the tooling platform to be parallel and aligned, adjusting the longitudinal central line marked on the seal head and the longitudinal central axis on the tooling platform to be parallel and aligned, and leveling and aligning the seal head;
and step nine, performing tack welding on each connecting pipe and the seal head respectively, and then performing corresponding welding respectively to complete the assembly welding of the seal head and the connecting pipes.
As a technical scheme of this application, in step three, through adjusting bearing structure adopts the spirit level monitoring and right the head makes level the alignment.
As a technical scheme of this application, in step six, carry out the detection of levelness and straightness that hangs down through the spirit level after to fixing the frock flange.
As a technical scheme of the present application, in step six, the tooling flange is fixedly connected with the connecting flange through a plurality of bolts.
As a technical scheme of this application, in step eight, through adjusting bearing structure adopts the spirit level monitoring and right the head makes level the alignment.
As a technical scheme of this application, bearing structure includes a plurality of parallel spaced bracing pieces, the bracing piece set up vertically in on the frock platform, and the top through finely tune connection structure connect in on the closing head.
As a technical scheme of the application, the fine adjustment connecting structure comprises a first connecting piece, a second connecting piece, a stud and a nut, wherein a first threaded hole is formed in the first connecting piece, and a second threaded hole is formed in the second connecting piece; the first connecting piece is horizontally arranged, and one end of the first connecting piece is fixedly connected to the sealing head; the second connecting piece is horizontally arranged and fixedly arranged on the top of the supporting rod; the stud is vertically arranged, and one end of the stud is sequentially in threaded connection with the first threaded hole and the second threaded hole; the nut is in threaded connection with the stud and is located between the first connecting piece and the second connecting piece.
The beneficial effect of this application:
according to the seal head positioning, perforating and connecting pipe installing method, the conventional forward one-by-one installation of the connecting pipes is changed, after each connecting pipe is positioned, inverted and fixed on the tool platform, the seal head and the connecting pipe are positioned and installed at the same time, and the connecting pipe installing efficiency on the whole air chamber is greatly improved. The method adopts a method of drawing lines on a two-dimensional plane of a tool platform for positioning and adopting an infrared projector to position the connecting pipe on the surface of the end socket, and solves the problems of low opening accuracy and error when the chord length is changed into the arc length caused by a traditional method of converting the chord length of a positioning point into the arc length and then adopting a sample plate for positioning on the arc surface of the end socket. In addition, the tool flange is installed on the plane of the leveled tool platform, the same measuring reference of all tool flanges is ensured, the relative heights of the tool flange surfaces are uniform, the tool flange which is positioned in advance is adopted to determine the technical factors of the height, deflection angle, bolt hole distribution, flatness, verticality and the like of the connecting flange surface of the connecting pipe to be connected, the problem of repeated positioning of batch end socket connecting pipe assembling in the traditional process is solved, and the working efficiency and the positioning accuracy are improved. Meanwhile, by adopting a mode of temporarily fastening the tooling flange and the connecting flange, the adverse effects of welding deformation on the levelness of the flange surface of the butt joint pipe and the verticality of the connecting pipe are reduced, and the problem that the flange of the connecting pipe is easy to deform during welding is solved; moreover, the method can realize batch construction with the same specification, only the connecting flange and the tool flange need to be fastened by bolts, the quick positioning and installation degree is realized, and the efficiency is greatly improved. Moreover, the connecting pipe is installed after the installation sealing head is inverted, the situation that the traditional installation process changes the situation that the connecting pipe and the large-slope side of the sealing head are welded in an overhead welding mode into a flat welding mode is changed, and the problems that the overhead welding quality is unstable and the working efficiency is low are solved.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a top view of a tooling platform provided in an embodiment of the present application;
fig. 2 is a schematic view illustrating installation of a seal head and a connecting pipe provided in the embodiment of the present application;
FIG. 3 is an enlarged schematic view taken at A in FIG. 2;
fig. 4 is an enlarged schematic view of B in fig. 2.
Icon: 1-a tooling platform; 2-sealing the end; 3-pipe connection; 4-a support structure; 5-a first infrared projector; 6-a second infrared projector; 7-a connecting flange; 8, tooling flanges; 9-angle steel; 10-bolt; 11-a support bar; 12-a first connector; 13-a second connector; 14-a stud; 15-nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Further, in the present application, unless expressly stated or limited otherwise, the first feature may be directly contacting the second feature or may be directly contacting the second feature, or the first and second features may be contacted with each other through another feature therebetween, not directly contacting the second feature. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 and fig. 2 to 4, the present application provides a method for positioning and opening a sealing head and installing a connecting pipe, including the following steps:
firstly, after a tool platform 1 is leveled, determining a transverse central axis and a longitudinal central axis on the upper surface of the tool platform 1, drawing a circle on the upper surface of the tool platform 1 by taking an intersection point O of the transverse central axis and the longitudinal central axis as a circle center and taking the actual outer diameter of a seal head 2 as a diameter, and marking 0 degree, 90 degrees, 180 degrees and 270 degrees at four intersection points of the circle, the transverse central axis and the longitudinal central axis respectively;
secondly, according to an abscissa value and an ordinate value corresponding to each connecting pipe 3 on the design drawing, a transverse perpendicular line passing through a transverse central axis and a longitudinal perpendicular line passing through a longitudinal central axis are respectively made on the upper surface of the tool platform 1, and an intersection point of the transverse perpendicular line and the longitudinal perpendicular line is a positioning central point of the connecting pipe 3; sequentially finding out the positioning central points of other connecting pipes 3 according to the method;
marking the transverse center line and the longitudinal center line of the end socket 2, inverting the end socket 2, and connecting the end socket 2 with the support structure 4; hoisting the seal head 2 and the supporting structure 4 to the tooling platform 1 together, wherein the seal head 2 is arranged on the tooling platform 1 through the supporting structure 4; adjusting the transverse central line marked on the end socket 2 and the transverse central axis on the tooling platform 1 to be parallel and aligned, adjusting the longitudinal central line marked on the end socket 2 and the longitudinal central axis on the tooling platform 1 to be parallel and aligned, and leveling and aligning the end socket 2;
step four, two infrared projectors are respectively placed on the transverse vertical line and the longitudinal vertical line where the same positioning center point is located; adjusting the central point and the projection line of the first infrared projector 5 to ensure that the first projection line of the first infrared projector 5 coincides with the transverse vertical line; adjusting the central point and the projection line of the second infrared projector 6 to ensure that the second projection line of the second infrared projector 6 is coincident with the longitudinal vertical line; finding out the intersection point of the first projection line and the second projection line on the end socket 2, and marking the intersection point as an opening positioning point of the connecting pipe 3;
removing the end socket 2 from the tooling platform 1, opening a hole on the end socket 2 according to the marked hole-opening positioning point and the aperture size of the connecting pipe 3 corresponding to the hole-opening positioning point, and processing an assembly welding groove;
step six, processing a tool flange 8 connected with the connecting flange 7 of the connecting pipe 3, wherein the tool flange 8 needs to be matched with the size of the connecting flange 7 and the holes of the bolts 10; respectively fixing a tooling flange 8 on the tooling platform 1 according to the technical factors such as the positioning central point, the deflection angle of each connecting pipe 3 and the like; detecting the levelness and the verticality of the fixed tool flange 8 through a horizontal ruler;
hoisting the end sockets 2 in the inverted state to the tool platform 1 again, and slowly descending to ensure that each connecting pipe 3 is inserted to the opening corresponding to the connecting pipe 3;
step eight, adjusting the transverse central line marked on the end socket 2 and the transverse central axis on the tooling platform 1 to be parallel and aligned, adjusting the longitudinal central line marked on the end socket 2 and the longitudinal central axis on the tooling platform 1 to be parallel and aligned, and leveling and aligning the end socket 2;
and step nine, performing spot welding on each connecting pipe 3 and the end enclosure 2 according to a proposed welding process, and performing corresponding welding to complete the assembly welding of the end enclosure 2 and the connecting pipes 3.
It should be noted that in the present embodiment, in step three, the leveling alignment of the head 2 is performed by adjusting the support structure 4 and monitoring with a level gauge.
In this embodiment, in step six, the tool flange 8 and the connecting flange 7 are fixedly connected by a plurality of bolts 10. An angle steel 9 is installed at the bottom of the tool flange 8, the angle steel 9 is vertically arranged on the tool platform 1 and used for supporting the tool flange 8, and connection between the tool flange and the connecting flange 7 is facilitated.
It should be noted that, in the present embodiment, in step eight, the leveling alignment of the head 2 is performed by adjusting the support structure 4 and monitoring with a level gauge.
Further, bearing structure 4 includes a plurality of parallel spaced bracing pieces 11, and bracing piece 11 sets up vertically on frock platform 1, and the top is connected on head 2 through fine setting connection structure.
Specifically, the fine-tuning connecting structure comprises a first connecting piece 12, a second connecting piece 13, a stud 14 and a nut 15, wherein a first threaded hole is formed in the first connecting piece 12, and a second threaded hole is formed in the second connecting piece 13; the first connecting piece 12 is horizontally arranged, and one end of the first connecting piece is fixedly connected to the end socket 2; the second connecting piece 13 is horizontally arranged and fixedly arranged on the top of the supporting rod 11; the stud 14 is vertically arranged, and one end of the stud is sequentially in threaded connection with the first threaded hole and the second threaded hole; a nut 15 is threaded onto stud 14 and is located between first connector 12 and second connector 13. Therefore, the screw bolt 14 can be rotated to drive the nut 15 on the screw bolt 14 to move on the screw bolt 14, so that fine adjustment of the lifting of the supporting structure 4 is realized, and the levelness of the seal head 2 is adjusted.
In summary, according to the seal head positioning, hole forming and connecting pipe installation method, the conventional forward piece-by-piece installation of the connecting pipes 3 is changed, after each connecting pipe 3 is positioned, inverted and fixed on the tool platform 1, the seal head 2 and the connecting pipes 3 are positioned and installed at the same time, and the installation efficiency of the connecting pipes 3 on the whole air chamber is greatly improved. According to the method, the method that the line is drawn and positioned on the two-dimensional plane of the tool platform 1 and the connecting pipe 3 is positioned on the surface of the end socket 2 by the first infrared projector 5 and the second infrared projector 6 is adopted, and the problems that in the traditional process, the chord length of a positioning point is converted into the arc length, the hole opening precision is low and errors occur when the chord length is converted into the arc length by a sample plate in the positioning method of the cambered surface of the end socket 2 are solved. In addition, the tool flange 8 is installed on the plane of the leveled tool platform 1, the same measuring reference of all the tool flanges 8 is ensured, the relative heights of the faces of the tool flanges 8 are uniform, the tool flanges 8 which are positioned in advance are used for determining the technical factors such as the height, the deflection angle, the hole distribution of the bolts 10, the planeness, the verticality and the like of the connecting flange 7 face of the connecting pipe 3 to be installed, the problem of repeated positioning of the connecting pipe 3 assembly of the end socket 2 in batch in the traditional process is solved, and the working efficiency and the positioning accuracy are improved. Meanwhile, by adopting a mode of temporarily fastening the tooling flange 8 and the connecting flange 7, the adverse effects of welding deformation on the levelness of the flange surface of the butt joint pipe 3 and the verticality of the connecting pipe 3 are reduced, and the problem that the flange of the connecting pipe 3 is easy to deform during welding is solved; moreover, the method can realize batch construction with the same specification, only the connecting flange 7 and the tool flange 8 need to be fastened by the bolts 10, so that the quick positioning and installation degree is realized, and the efficiency is greatly improved. Moreover, the installation of the connecting pipe 3 is carried out after the installation of the seal head 2 is inverted, the situation that the traditional installation process changes the welding of the connecting pipe 3 and the large slope side of the seal head 2 from overhead welding to flat welding is changed, and the problems of unstable overhead welding quality and low working efficiency are solved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (7)

1. A method for positioning, perforating and installing a connecting pipe of a seal head is characterized by comprising the following steps:
firstly, after a tool platform is leveled, determining a transverse central axis and a longitudinal central axis on the upper surface of the tool platform, drawing a circle on the upper surface of the tool platform by taking an intersection point O of the transverse central axis and the longitudinal central axis as a circle center and taking the actual outer diameter of a seal head as a diameter, and respectively marking 0 degree, 90 degrees, 180 degrees and 270 degrees at four intersection points of the circle, the transverse central axis and the longitudinal central axis;
secondly, according to an abscissa value and an ordinate value corresponding to each connecting pipe on a design drawing, respectively making a transverse perpendicular line passing through the transverse central axis and a longitudinal perpendicular line passing through the longitudinal central axis on the upper surface of the tool platform, wherein the intersection point of the transverse perpendicular line and the longitudinal perpendicular line is the positioning central point of the connecting pipe; sequentially finding out the positioning central points of other connecting pipes according to the method;
marking the transverse center line and the longitudinal center line of the end socket, inverting the end socket, and connecting the end socket with a support structure; hoisting the seal head and the support structure to the tooling platform together, wherein the seal head is arranged on the tooling platform through the support structure; adjusting the transverse central line marked on the end socket and the transverse central axis on the tooling platform to be parallel and aligned, adjusting the longitudinal central line marked on the end socket and the longitudinal central axis on the tooling platform to be parallel and aligned, and leveling and aligning the end socket;
step four, two infrared projectors are respectively placed on the transverse vertical line and the longitudinal vertical line where the same positioning central point is located; adjusting the center point and the projection line of one of the infrared projectors to ensure that the first projection line of one of the infrared projectors coincides with the transverse vertical line; adjusting the central point and the projection line of the other infrared projector to ensure that the second projection line of the other infrared projector is coincident with the longitudinal vertical line; finding out an intersection point of the first projection line and the second projection line on the end socket, and marking the intersection point as an opening positioning point of the connecting pipe;
fifthly, moving the seal head away from the tool platform, opening a hole on the seal head according to the marked hole-opening positioning point and the aperture size of the connecting pipe corresponding to the hole-opening positioning point, and processing an assembly welding groove;
step six, processing a tooling flange connected with the connecting flange of the connecting pipe, and respectively fixing the tooling flange on the tooling platform according to the positioning central point and the deflection angle of each connecting pipe;
hoisting the end sockets in the inverted state to the tooling platform again, and slowly descending to ensure that each connecting pipe is inserted to the opening corresponding to the connecting pipe;
step eight, adjusting the transverse central line marked on the seal head and the transverse central axis on the tooling platform to be parallel and aligned, adjusting the longitudinal central line marked on the seal head and the longitudinal central axis on the tooling platform to be parallel and aligned, and leveling and aligning the seal head;
and step nine, performing tack welding on each connecting pipe and the seal head respectively, and then performing corresponding welding respectively to complete the assembly welding of the seal head and the connecting pipes.
2. A head positioning, tapping and nozzle installation method as claimed in claim 1, wherein in step three, the head is leveled and aligned by adjusting the support structure and monitoring with a level gauge.
3. A seal head positioning, perforating and connecting pipe installing method according to claim 1, characterized in that in step six, the levelness and verticality of the fixed tool flange are detected by a level.
4. A seal head positioning, hole forming and pipe connecting installation method according to claim 1, wherein in the sixth step, the tool flange and the connecting flange are fixedly connected through a plurality of bolts.
5. A head positioning, tapping and nozzle installation method as claimed in claim 1, wherein in step eight the head is leveled by adjusting the support structure and monitoring with a level gauge.
6. A seal positioning, tapping and nozzle mounting method as claimed in claim 1 wherein the support structure comprises a plurality of parallel spaced support bars, the support bars being vertically disposed on the tooling platform and the top being connected to the seal by a fine adjustment connection.
7. The seal positioning, perforating and connecting pipe installing method as claimed in claim 6, wherein the fine adjustment connecting structure comprises a first connecting piece, a second connecting piece, a stud and a nut, the first connecting piece is provided with a first threaded hole, and the second connecting piece is provided with a second threaded hole; the first connecting piece is horizontally arranged, and one end of the first connecting piece is fixedly connected to the sealing head; the second connecting piece is horizontally arranged and fixedly arranged on the top of the supporting rod; the stud is vertically arranged, and one end of the stud is sequentially in threaded connection with the first threaded hole and the second threaded hole; the nut is in threaded connection with the stud and is located between the first connecting piece and the second connecting piece.
CN202110695576.4A 2021-06-23 2021-06-23 End socket positioning hole opening and connecting pipe installation method Active CN113458636B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113944875A (en) * 2021-10-25 2022-01-18 上海东鼎钢结构有限公司 LNG ship gas dome safety valve pipe accessory positioning tool
CN114131093A (en) * 2021-12-21 2022-03-04 一重集团大连核电石化有限公司 Numerical control machining method for multi-type large-diameter hollow indirect pipe hole in ultra-large end socket
CN114850628A (en) * 2022-04-22 2022-08-05 中石化宁波工程有限公司 Combined construction method for butt joint of double 90-degree bent pipes of S-shaped structure
CN115163921A (en) * 2022-06-30 2022-10-11 中海石油(中国)有限公司 Installation method of steel cylinder protection underwater production system manifold under seabed mud surface

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