CN115264175B - Method for centering and installing ship pipeline and centering and installing supporting device - Google Patents
Method for centering and installing ship pipeline and centering and installing supporting device Download PDFInfo
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- CN115264175B CN115264175B CN202210826214.9A CN202210826214A CN115264175B CN 115264175 B CN115264175 B CN 115264175B CN 202210826214 A CN202210826214 A CN 202210826214A CN 115264175 B CN115264175 B CN 115264175B
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- ship pipeline
- fixing
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims description 26
- 238000003466 welding Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/10—Accessories therefor, e.g. anchors for aligning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/003—Auxiliary devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses a method for centering and installing ship pipelines, which is characterized in that a ship pipeline centering and installing supporting device is utilized to perform the centering and supporting functions on the ship pipelines, the centering precision of the ship pipelines is adjusted by utilizing an adjusting bolt, and the centered ship pipelines are fixedly supported by utilizing a base; the support module comprises a support piece and a cross beam, and the fixing module comprises a fixing plate and a fixing piece; the support piece with the crossbeam is connected, the mounting with the fixed plate is connected, the fixed plate with adjusting bolt connects, adjusting bolt with blind flange joint, the mounting side with crossbeam one side is connected. According to the invention, the accuracy of centering the ship pipeline is improved by using the supporting device, and the centering efficiency of the ship pipeline is improved.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a method for centering and installing a ship pipeline and a centering and installing support device.
Background
Along with the large-scale development of ships, stainless steel pipe systems used on the ships are longer and longer to ensure the normal operation of the system, pipe fittings of liquid cargo pipes of the liquefied natural gas ships are arranged in a Z shape on a slope of the ship body, the length is more than 5m, the weight is about 900 kg, and the centering requirement is extremely high during installation; the method has extremely high precision requirements in the manufacturing process of the low-temperature liquid cargo pipe, flanges at two ends of the low-temperature liquid cargo pipe are effectively protected after the pipe system is manufactured, and the low-temperature liquid cargo pipe is transported to a ship deck for installation operation by using a crane after being transported to the site.
In the early manufacturing stage, the horizontal placement of the pipe system needs to meet the requirements of a certain height and levelness by means of temporary support; in the installation stage, after the pipe system is vertically lifted, the pipe system is arranged in a Z shape, the height and the fall are 10m, the width of the ship in the width direction is 5m, the installation precision requirement is high, and the pipe system is lifted in place and then needs fine adjustment to meet the installation requirement. Because the temporary built support is used for temporarily fixing the low-temperature liquid cargo pipe before a shipyard, corresponding auxiliary tools are lacked, if the temporary built support is used, the temporary built support has more uncertainty and lower safety coefficient, and the pipe system is easy to deform under stress due to factors such as lifting arrangement, material specification and lifting quality, and certain potential safety hazards can be generated. After the pipe system is hoisted in place, if a fixed supporting tool is not arranged, the low Wen Yehuo pipe system cannot be finely adjusted, the possibility of repeated use of the supporting tool which is randomly manufactured by a worker is very low, and a large amount of waste of materials, manpower and material resources and time is caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for centering and installing a ship pipeline and a centering and installing support device.
In order to achieve the above object, the present invention provides the following technical solutions:
the method for centering and installing the ship pipeline comprises the following steps that one end of the ship pipeline is connected with the flange surface of the existing pipeline of the ship, and the other end of the ship pipeline is a free end:
Firstly, preparing a ship pipeline centering installation supporting device, wherein the device comprises a supporting module, a blind flange, an adjusting bolt and a fixing module; the support module comprises a support piece and a cross beam, and the fixing module comprises a fixing plate and a fixing piece; the support piece is connected with the cross beam, the fixing piece is connected with the fixing plate, the fixing plate is connected with the adjusting bolt, the adjusting bolt is connected with the blind plate flange, and the side face of the fixing piece is connected with one side of the cross beam; the adjusting bolts adjust the relative positions of the fixing plates and the blind flange;
secondly, welding and fixing a ship pipeline centering and mounting support device on a ship deck according to the coordinate position of a ship pipeline free end flange to be mounted on the ship deck, wherein the position of a blind flange surface in the ship pipeline centering and mounting support device is the same as that of the ship pipeline free end flange surface to be mounted;
Hoisting a ship pipeline to be installed onto a ship deck, wherein one end of the ship pipeline to be installed is fixedly connected with an existing pipeline flange surface of a ship, and the flange surface of the free end of the ship pipeline to be installed is hoisted to a ship pipeline centering installation supporting device installed in the second step; fourthly, after hoisting of the ship pipeline to be installed is completed, driving the blind flange to move through adjusting the adjusting bolts so that the blind flange is tightly connected with the free end flange surface of the ship pipeline to be installed, and fixedly connecting the blind flange with the free end flange surface of the ship pipeline to be installed through the bolts;
Fifthly, after the blind flange is fixedly connected with the flange surface of the free end of the ship pipeline to be installed, measuring the absolute coordinate position of the ship pipeline to be installed and the relative position distance between the ship pipeline to be installed and the adjacent pipe system, adjusting the relative position of the adjusting bolt and the fixed plate according to the measured absolute coordinate position of the ship pipeline to be installed and the relative position distance between the ship pipeline to be installed and the adjacent pipe system, and fixedly connecting the adjusting bolt and the fixed plate;
Sixthly, installing a base on a deck below a ship pipeline to be installed after the adjusting bolt is fixedly connected with the fixing plate, wherein the upper end of the base is connected with the side surface of the ship pipeline to be installed, and the bottom of the base is fixedly connected with the deck;
Seventhly, after the base is installed, fixing connection between the adjusting bolt and the fixed plate is adjusted to be movable connection, the adjusting bolt moves back and forth on the fixed plate, and meanwhile connection between the blind flange and the flange surface of the free end of the ship pipeline to be installed is removed; and then the ship pipeline centering and mounting supporting device is dismantled and fixedly connected with the ship deck, and the ship pipeline centering and mounting supporting device is lifted and lifted off the ship by a crane, so that the centering and mounting of the ship pipeline is completed.
The number of the cross beams in the first step is multiple, the whole cross beams are hollow cuboid, two sides of each cross beam are respectively connected through connecting plates, the cross beams are vertically connected with the connecting plates, and a space exists between the cross beams.
The upper end of the supporting piece in the first step is connected with the end face of the bottom of the cross beam, and the supporting piece is arranged at the bottom end of each cross beam; the whole support piece is cuboid.
The fixing pieces in the first step are two in number, the fixing pieces are respectively and vertically connected with one end of the connecting plate, and the upper ends of the fixing pieces and the two fixing pieces on the plane of the cross beam are respectively and vertically connected through square pipes; the fixing plate is arranged on the upper portion of the fixing piece.
The whole fixing plate is cross-shaped, and the outer end of the fixing plate is vertically connected with the fixing plate and the square tube respectively; waist round holes are formed in the four corner end faces of the fixing plate, the waist round holes are oval, and the adjusting bolts are arranged in the waist round holes.
The adjusting bolt moves back and forth in the waist round hole, and nuts are respectively arranged on two sides of the waist round hole to connect one end of the adjusting bolt with the waist round hole; the diameter of the adjusting bolt is smaller than the diameter of the kidney-shaped hole; and the other end of the adjusting bolt is fixedly connected with the blind flange.
Above-mentioned blind flange wholly is the cylindric, the blind flange terminal surface outside is provided with evenly distributed's bolt hole, the bolt hole distribution on the blind flange is the same with the bolt hole distribution on the marine pipeline flange face of waiting to install.
And in the second step, the bottom end of the supporting piece of the supporting device for centering and installing the ship pipeline is welded and fixed with the ship deck.
The absolute coordinate position of the ship pipeline to be installed in the fifth step is the three-dimensional coordinate of the ship pipeline to be installed on a ship deck; the error of the relative position distance between the ship pipeline to be installed and the adjacent pipe system is not more than 1mm; the perpendicularity of the ship pipeline flange and the ship deck is measured after the installation position of the ship pipeline to be installed is adjusted, and the coplanarity of the ship pipeline to be installed and the adjacent pipeline is measured; the identical surface degree of the ship pipeline to be installed and the adjacent pipeline is whether the ship pipeline to be installed and the adjacent pipeline flange are on the same plane.
A support device for centering and installing a ship pipeline comprises a support module, a blind flange, an adjusting bolt and a fixing module; the support module comprises a support piece and a cross beam, and the fixing module comprises a fixing plate and a fixing piece; the support piece is connected with the cross beam, the fixing piece is connected with the fixing plate, the fixing plate is connected with the adjusting bolt, the adjusting bolt is connected with the blind plate flange, and the side face of the fixing piece is connected with one side of the cross beam; and the adjusting bolts adjust the relative positions of the fixing plate and the blind flange.
Based on the technical scheme, the method and the supporting device for centering and installing the ship pipeline have the following technical advantages through practical application:
1. According to the supporting device for centering and installing the ship pipeline, the bottom supporting piece and the adjusting bolt are arranged, when the supporting device is used, the supporting device is temporarily welded on the deck according to the height and the position of the ship pipeline relative to the deck, the pipe is hoisted in place, the flange at one end of the pipe is connected with the blind flange through the bolt, meanwhile, the crane can quickly loosen the hook, the adjusting bolt is used for fine adjustment of the ship pipeline, the safety coefficient of the centering and adjusting process of the ship pipeline is improved, the centering precision of the ship pipeline is effectively ensured, and the working efficiency of hoisting the ship pipeline and centering and installing the ship pipeline is improved.
2. The waist round hole diameter of the fixing plate used in the ship pipeline centering installation supporting device is larger than the diameter of the adjusting bolt, so that the position fine adjustment during the subsequent ship pipeline installation is realized, the dimension adjustment of the flange surface of the ship pipeline in the up-down, left-right and front-back directions can be realized, the centering precision of the ship pipeline is improved, and the construction period is shortened.
3. The supporting device for centering the ship pipeline has the advantages of simple integral structure, convenient disassembly and repeated use; the centering device is suitable for centering of all pipe systems, and meanwhile, the manufacturing cost is low, and the production cost of enterprises is reduced.
Drawings
FIG. 1 is a block diagram of a marine pipeline centering and mounting support device for use in a marine pipeline centering and mounting support device of the present invention.
Fig. 2 is a cross-sectional view of a marine pipeline centering and mounting support apparatus for use in a marine pipeline centering and mounting support apparatus of the present invention.
Fig. 3 is a side view of a marine pipeline centering and mounting support device for use in a marine pipeline centering and mounting support device of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by way of specific examples shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
The invention belongs to a method for centering and installing a ship pipeline, wherein one end of the ship pipeline is connected with an existing pipeline flange surface of a ship when the ship pipeline is installed, and the other end of the ship pipeline is a free end.
As shown in fig. 1-3, a method for centering installation of a marine pipeline, the method comprising the steps of:
Firstly, preparing a ship pipeline centering installation supporting device, wherein the device comprises a supporting module, a blind flange 3, an adjusting bolt 4 and a fixing module; the support module comprises a support piece 1 and a cross beam 2, and the fixing module comprises a fixing plate 5 and a fixing piece 8; the support piece 1 is connected with the cross beam 2, the fixing piece 8 is connected with the fixing plate 5, the fixing plate 5 is connected with the adjusting bolt 4, the adjusting bolt 4 is connected with the blind flange 3, and the side surface of the fixing piece 8 is connected with one side of the cross beam 2; the adjusting bolts 4 adjust the relative positions of the fixing plate 5 and the blind flange 3;
secondly, welding and fixing a ship pipeline centering and mounting support device on a ship deck according to the coordinate position of a ship pipeline free end flange to be mounted on the ship deck, wherein the position of a blind flange 3 surface in the ship pipeline centering and mounting support device is the same as that of the ship pipeline free end flange surface to be mounted;
Hoisting a ship pipeline to be installed onto a ship deck, wherein one end of the ship pipeline to be installed is fixedly connected with an existing pipeline flange surface of a ship, and the flange surface of the free end of the ship pipeline to be installed is hoisted to a ship pipeline centering installation supporting device installed in the second step; fourthly, after hoisting of the ship pipeline to be installed is completed, driving the blind flange 3 to move through adjusting the adjusting bolts 4 to enable the blind flange 3 to be tightly connected with the free end flange surface of the ship pipeline to be installed, and fixedly connecting the blind flange 3 with the free end flange surface of the ship pipeline to be installed through the bolts;
fifthly, after the blind flange 3 is fixedly connected with the flange surface of the free end of the ship pipeline to be installed, measuring the absolute coordinate position of the ship pipeline to be installed and the relative position distance between the ship pipeline to be installed and the adjacent pipe system, adjusting the relative position of the adjusting bolt 4 and the fixed plate 5 according to the measured absolute coordinate position of the ship pipeline to be installed and the relative position distance between the ship pipeline to be installed and the adjacent pipe system, and fixedly connecting the adjusting bolt 4 and the fixed plate 5;
sixthly, after the fixing plate 5 is fixedly connected with the adjusting bolt 4, installing a base on a deck below a ship pipeline to be installed, wherein the upper end of the base is connected with the side surface of the ship pipeline to be installed, and the bottom of the base is fixedly connected with the deck;
Seventhly, after the base is installed, the fixed connection between the adjusting bolt 4 and the fixed plate 5 is adjusted to be movable connection, so that the adjusting bolt 4 moves back and forth on the fixed plate 5, and meanwhile, the connection between the blind flange 3 and the flange surface of the free end of the ship pipeline to be installed is removed; and then the ship pipeline centering and mounting supporting device is dismantled and fixedly connected with the ship deck, and the ship pipeline centering and mounting supporting device is lifted and lifted off the ship by a crane, so that the centering and mounting of the ship pipeline is completed.
The number of the cross beams 2 in the first step is multiple, the whole cross beams 2 are hollow cuboid shapes, two sides of each cross beam 2 are respectively connected through the connecting plates 6, the cross beams 2 are vertically connected with the connecting plates 6, and a space exists between the cross beams 2.
The upper end of the supporting piece 1 in the first step is connected with the end face of the bottom of the cross beam 2, and the bottom end of each cross beam 2 is provided with the supporting piece 1; the whole supporting piece 1 is rectangular; through being equipped with bottom sprag piece 1 and adjusting bolt 4, according to the relative deck of boats and ships pipeline high and the position temporary weld on the deck when strutting arrangement uses, use the bolt to connect pipe one end flange and blind flange 3 after hoisting in place with the pipe, the crane can loose the hook fast simultaneously, follow-up utilization adjusting bolt 4 finely tunes the boats and ships pipeline, the factor of safety of the adjustment process of boats and ships pipeline centering has been improved, the centering precision of boats and ships pipeline has been guaranteed effectively, the work efficiency of boats and ships pipeline lifting by crane and boats and ships pipeline centering installation has been improved.
The number of the fixing pieces 8 in the first step is two, the fixing pieces 8 are respectively and vertically connected with one end of the connecting plate 6, and the upper ends of the fixing pieces 8 are respectively and vertically connected with the two fixing pieces 8 on the plane of the cross beam 2 through square tubes 7; the fixing plate 5 is arranged on the upper part of the fixing piece 8.
The whole fixed plate 5 is cross-shaped, and the outer end of the fixed plate 5 is vertically connected with the fixed plate 5 and the square tube 7 respectively; waist round holes 51 are formed in four corner end faces of the fixing plate 5, the waist round holes 51 are oval, and the adjusting bolts are arranged in the waist round holes 51; the aperture of the waist round hole 51 on the fixing plate 5 is larger than the diameter of the adjusting bolt 4, so that the position fine adjustment during the subsequent installation of the ship pipeline is realized, the size adjustment of the flange surface of the ship pipeline in the up-down, left-right and front-back directions can be realized, the centering precision of the ship pipeline is improved, and the construction period is shortened.
The adjusting bolt moves back and forth in the waist round hole 51, and nuts are respectively arranged on two sides of the waist round hole 51 to connect one end of the adjusting bolt with the waist round hole 51; the diameter of the adjusting bolt is smaller than the aperture of the waist-round hole 51; the other end of the adjusting bolt is fixedly connected with the blind flange 3.
Above-mentioned blind flange 3 wholly is the cylindric, the blind flange 3 terminal surface outside is provided with evenly distributed's bolt hole, the bolt hole distribution on the blind flange 3 with the bolt hole distribution on the marine pipeline flange face of waiting to install is the same.
And in the second step, the bottom end of the supporting piece 1 of the supporting device is arranged in the ship pipeline centering and is welded and fixed with the ship deck.
The absolute coordinate position of the ship pipeline to be installed in the fifth step is the three-dimensional coordinate of the ship pipeline to be installed on a ship deck; the error of the relative position distance between the ship pipeline to be installed and the adjacent pipe system is not more than 1mm; the perpendicularity of the ship pipeline flange and the ship deck is measured after the installation position of the ship pipeline to be installed is adjusted, and the coplanarity of the ship pipeline to be installed and the adjacent pipeline is measured; the identical surface degree of the ship pipeline to be installed and the adjacent pipeline is whether the ship pipeline to be installed and the adjacent pipeline flange are on the same plane.
A supporting device for centering and installing a ship pipeline comprises a supporting module, a blind flange 3, an adjusting bolt 4 and a fixing module; the support module comprises a support piece 1 and a cross beam 2, and the fixing module comprises a fixing plate 5 and a fixing piece 8; the support piece 1 is connected with the cross beam 2, the fixing piece 8 is connected with the fixing plate 5, the fixing plate 5 is connected with the adjusting bolt 4, the adjusting bolt 4 is connected with the blind flange 3, and the side surface of the fixing piece 8 is connected with one side of the cross beam 2; the adjusting bolts 4 adjust the relative positions of the fixing plate 5 and the blind flange 3.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that; modifications may be made to the specific embodiments of the invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (9)
1. The method for centering and installing the ship pipeline is characterized by comprising the following steps that one end of the ship pipeline is connected with an existing pipeline flange surface of a ship, and the other end of the ship pipeline is a free end:
Firstly, preparing a ship pipeline centering installation supporting device, wherein the device comprises a supporting module, a blind flange (3), an adjusting bolt (4) and a fixing module; the support module comprises a support (1) and a cross beam (2), and the fixing module comprises a fixing plate (5) and a fixing piece (8); the support piece (1) is connected with the cross beam (2), the fixing piece (8) is connected with the fixing plate (5), the fixing plate (5) is connected with the adjusting bolt (4), the adjusting bolt (4) is connected with the blind flange (3), and the side face of the fixing piece (8) is connected with one side of the cross beam (2); the adjusting bolts (4) adjust the relative positions of the fixing plates (5) and the blind flange (3);
Secondly, welding and fixing a ship pipeline centering and mounting support device on a ship deck according to the coordinate position of a ship pipeline free end flange to be mounted on the ship deck, wherein the position of a blind flange (3) surface in the ship pipeline centering and mounting support device is the same as that of the ship pipeline free end flange surface to be mounted;
Hoisting a ship pipeline to be installed onto a ship deck, wherein one end of the ship pipeline to be installed is fixedly connected with an existing pipeline flange surface of a ship, and the flange surface of the free end of the ship pipeline to be installed is hoisted to a ship pipeline centering installation supporting device installed in the second step;
Fourthly, after hoisting of the ship pipeline to be installed is completed, driving the blind flange (3) to move through adjusting the adjusting bolts (4) to enable the blind flange (3) to be tightly connected with the flange surface of the free end of the ship pipeline to be installed, and fixedly connecting the blind flange (3) with the flange surface of the free end of the ship pipeline to be installed through the bolts;
Fifthly, after the blind flange (3) is fixedly connected with a flange surface of the free end of the ship pipeline to be installed, measuring the absolute coordinate position of the ship pipeline to be installed and the relative position distance between the ship pipeline to be installed and an adjacent pipe system, adjusting the relative position of an adjusting bolt (4) and the fixed plate (5) according to the measured absolute coordinate position of the ship pipeline to be installed and the relative position distance between the ship pipeline to be installed and the adjacent pipe system, and fixedly connecting the adjusting bolt (4) and the fixed plate (5);
Sixthly, after the fixing of the adjusting bolt (4) and the fixing plate (5) is completed, installing a base on a deck below a ship pipeline to be installed, wherein the upper end of the base is connected with the side surface of the ship pipeline to be installed, and the bottom of the base is fixedly connected with the deck;
Seventhly, after the base is installed, the fixed connection between the adjusting bolt (4) and the fixed plate (5) is adjusted to be movable connection, the adjusting bolt (4) moves back and forth on the fixed plate (5), and meanwhile, the blind flange (3) is removed from being connected with the flange surface of the free end of the ship pipeline to be installed; and then the ship pipeline centering and mounting supporting device is dismantled and fixedly connected with the ship deck, and the ship pipeline centering and mounting supporting device is lifted and lifted off the ship by a crane, so that the centering and mounting of the ship pipeline is completed.
2. The method for centering and installing ship pipelines according to claim 1, wherein the number of the cross beams (2) in the first step is multiple, the cross beams (2) are of a hollow cuboid shape as a whole, two sides of each cross beam (2) are respectively connected through connecting plates (6), the cross beams (2) are vertically connected with the connecting plates (6), and a space exists between the cross beams (2).
3. A method for centering installation of a ship pipeline according to claim 2, characterized in that the upper end of the support member (1) in the first step is connected to the bottom end surface of the cross beams (2), and the bottom end of each cross beam (2) is provided with the support member (1); the whole supporting piece (1) is cuboid.
4. A method for centering installation of ship pipelines according to claim 2, characterized in that the number of the fixing pieces (8) in the first step is two, the fixing pieces (8) are respectively and vertically connected with one end of the connecting plate (6), and the upper ends of the fixing pieces (8) and the two fixing pieces (8) on the plane of the cross beam (2) are respectively and vertically connected through square tubes (7); the fixing plate (5) is arranged on the upper part of the fixing piece (8).
5. The method for centering installation of ship pipelines according to claim 4, wherein the fixing plate (5) is in a cross shape as a whole, and the outer ends of the fixing plate (5) are respectively and vertically connected with the fixing piece (8) and the square pipe (7); waist round holes (51) are formed in four corner end faces of the fixing plate (5), the waist round holes (51) are oval, and the adjusting bolts are arranged in the waist round holes (51).
6. The method for centering installation of a ship pipeline according to claim 5, wherein the adjusting bolt moves back and forth in the kidney-shaped hole (51), nuts are respectively arranged at two sides of the kidney-shaped hole (51) to connect one end of the adjusting bolt with the kidney-shaped hole (51); the diameter of the adjusting bolt is smaller than the aperture of the waist round hole (51); the other end of the adjusting bolt is fixedly connected with the blind flange (3).
7. The method for centering and installing the ship pipeline according to claim 6, wherein the blind flange (3) is integrally cylindrical, bolt holes which are uniformly distributed are arranged on the outer side of the end face of the blind flange (3), and the bolt holes on the blind flange (3) are distributed in the same manner as the bolt holes on the flange face of the ship pipeline to be installed.
8. A method for centering installation of a ship pipeline according to claim 1, characterized in that in the second step the bottom end of the support (1) of the centering installation support device of the ship pipeline is welded to the deck of the ship.
9. A method for centering installation of a ship line according to claim 1, characterized in that the absolute coordinate position of the ship line to be installed in the fifth step is the three-dimensional coordinate of the ship line to be installed on the ship deck; the error of the relative position distance between the ship pipeline to be installed and the adjacent pipe system is not more than 1mm; the perpendicularity of the ship pipeline flange and the ship deck is measured after the installation position of the ship pipeline to be installed is adjusted, and the coplanarity of the ship pipeline to be installed and the adjacent pipeline is measured; the identical surface degree of the ship pipeline to be installed and the adjacent pipeline is whether the ship pipeline to be installed and the adjacent pipeline flange are on the same plane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210826214.9A CN115264175B (en) | 2022-07-14 | 2022-07-14 | Method for centering and installing ship pipeline and centering and installing supporting device |
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| CN202210826214.9A CN115264175B (en) | 2022-07-14 | 2022-07-14 | Method for centering and installing ship pipeline and centering and installing supporting device |
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| CN115264175B true CN115264175B (en) | 2024-05-10 |
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| CN201891963U (en) * | 2010-12-21 | 2011-07-06 | 攀钢集团钢铁钒钛股份有限公司 | Centering regulating device for feeding pipeline connection |
| CN107975648A (en) * | 2017-12-21 | 2018-05-01 | 西安航天动力研究所 | A kind of adjustable concentric pipe connection system |
| CN109357082A (en) * | 2018-11-16 | 2019-02-19 | 海洋石油工程（青岛）有限公司 | Adjustable type pipe flange bracket |
| CN211304105U (en) * | 2019-11-07 | 2020-08-21 | 中建安装集团有限公司 | Movable frock based on high temperature high pressure steam line sweeps |
| CN214135935U (en) * | 2020-12-26 | 2021-09-07 | 南京金陵石化建筑安装工程有限公司 | Centering device for pipeline connection |
| CN215763630U (en) * | 2021-03-26 | 2022-02-08 | 海洋石油工程（青岛）有限公司 | Novel adjustable flange group is to device |
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| CN115264175A (en) | 2022-11-01 |
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