A method for integrated arrangement of piping support for LNG ship sloping wall area and ship

Abstract

The application discloses a pipeline support integrated arrangement method for a LNG ship inclined wall area and a ship, which comprises an integrated support combined with a low-temperature support and a normal-temperature support, and is used for arranging low-temperature pipelines and normal-temperature pipelines in cooperation with low-temperature pipe clamps and normal-temperature pipe clamps. The application realizes the arrangement of the integrated support, and realizes the arrangement of the integrated support, and realizes the arrangement of the integrated support. The application relates to the pipeline and support arrangement form of the inclined wall area, which can meet the requirements of the latest international standard requirements for the pipeline arrangement of the inclined wall deck area, fully utilize the space to avoid the interference with the work area of the personnel, realize the efficient use of the space, and can complete the ship-to-ship docking with the LNG receiving stations all over the world and various types of LNG ships in the world. Meanwhile, by removing the steel pipe consumption caused by a large amount of redundant arrangement, the construction difficulty is reduced, and the damage to the hull deck plate is reduced, that is, the application is economical, practical, beautiful and reliable.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of shipbuilding, and particularly relates to a pipe support integrated arrangement method for a LNG ship inclined wall area and a ship. BACKGROUND

[0002] The pipe in the inclined wall area is also called a manifold or a header, and its main function is to dock with other ships or facilities to complete the loading and transfer of LNG. Therefore, there are clear design specifications for LNG ships in the world, such as the <Recommendations for Liquefied Gas Carrier Manifolds> (hereinafter referred to as the OCIMF specification) design requirements proposed by OCIMF (International Maritime Organization of Oil Companies) and SIGTTO (International Gas Transport Ship and Terminal Operator Association). According to the requirements of the OCIMF specification 2.2.3, there should be no other arrangement in the triangular area formed by the vertical upward 3 meters from the flange end surface of the header and the 45° straight line upward to the ship's width, and the OCIMF specification requires that the area be empty, which can ensure the convenience of the operator's work and the spacious escape space, so that the arrangement in accordance with the OCIMF specification is a very important link in the design process of the LNG ship in order to make the ship widely recognized by the international market and various ship classification societies.

[0003] However, the arrangement of the previous ship type is relatively chaotic, Figure 4 for the existing pipe support arrangement in the inclined wall area, Figure 5 For the overall structure side view after the installation of the header under the existing pipe support arrangement method, it can be obviously seen that the involved size is too large, which leads to the fact that the triangular area does not meet the requirements of the OCIMF specification. Not only a large amount of steel material is used to occupy the personnel working space, but also the appearance of the manifold is relatively messy, which makes the overall arrangement complex and redundant. In other words, the current arrangement of the pipe and support in the inclined wall area not only causes a large amount of steel pipe consumption, but also occupies a large space for personnel movement and operation; at the same time, a large number of supports welded with the inclined wall deck will also cause certain damage to the hull plate; in addition, the current arrangement form is messy in appearance, which is not conducive to the design quality.

[0004] For the existing arrangement method of the inclined wall area, the pipe is usually arranged first, and then the large support is tried to be combined, that is, the existing arrangement method is to combine the supports of the low-temperature safety pipe and the water spray pipe which are close (less than 2 meters) in distance by using the large support after the pipe arrangement on the inclined wall deck is completed. Therefore, the low-temperature support needs to consume a large amount of profile on the large support; and the existing arrangement method only considers the support combination of the low-temperature safety pipe and the water spray pipe, and fails to integrate more loads, so the function is less, and when other system pipes need to be installed, multiple constructions are required, which increases the construction cost and construction time. Under the existing LNG ship inclined wall area pipe support arrangement method, the completed inclined wall area pipe support arrangement structure cannot meet the requirements of the latest international specifications, cannot be matched with the LNG receiving stations all over the world, and cannot complete the ship-to-ship docking with the LNG ships produced by other countries. SUMMARY

[0005] To solve the problems in the prior art described above, the purpose of the present application is to provide a pipe support integrated arrangement method for an LNG ship inclined wall area and a ship. The present application redesigns the support platform originally only used as a low-temperature pipe support as the basis of the integrated large support; the arrangement of the support is carried out based on the new integrated large support by modifying the low-temperature pipe and the normal temperature pipe; the present application can meet the requirements of the international specifications for the pipe arrangement in the inclined wall area, realize efficient use of space, save material consumption, reduce construction difficulty, reduce deck damage, and also play an aesthetic role.

[0006] To achieve the above purpose and other related purposes, the present application adopts the following technical scheme:

[0007] In a first aspect, the present application provides a pipe support integrated arrangement method for an LNG ship inclined wall area, the pipe including a normal temperature pipe and a low-temperature pipe, the support including an integrated support, and the method including the following steps:

[0008] S1. determining the installation position of the integrated support on the inclined wall deck area according to the pipe design, and determining the size range of the integrated support on the inclined wall deck area according to the OCIMF specification requirements;

[0009] S2. making the integrated support, and assembling the low-temperature support and the normal temperature support on the integrated support;

[0010] S3. installing and fixing the integrated support completed with assembly on the inclined wall deck;

[0011] S4. arranging the pipe on the integrated support by the low-temperature support and the normal temperature support cooperating with the pipe clamp.

[0012] As a preferred technical solution, in the step S1, the specific step of determining the installation position of the integrated support on the sloping wall deck area according to the pipeline design comprises: determining the installation position of the integrated support on the sloping wall deck area according to the pipeline design of the normal-temperature pipeline and the low-temperature pipeline, so that the installation position of the integrated support on the sloping wall deck area covers the positions where the ends of the pipelines need to reach.

[0013] As a preferred technical solution, in the step S1, the specific step of determining the size range of the integrated support on the sloping wall deck area according to the OCIMF specification requirement comprises: determining the maximum size of the integrated support according to the OCIMF specification requirement, so that the integrated support is away from the vertex of the sloping wall deck and does not fall into the triangular area required by the OCIMF specification 2.2.3, which is a triangular empty area formed by a vertical upward line of 3 meters from the flange end surface of the pipeline access end of the sloping wall area and a 45° straight line obliquely upward to the bow.

[0014] As a preferred technical solution, the integrated support comprises a plurality of sloping wall support frames and transverse beams arranged between the sloping wall support frames, the sloping wall support frame comprises a horizontal support leg and a sloping support leg, and the sloping wall support frame is provided with a low-temperature support and a normal-temperature support.

[0015] As a further preferred technical solution, in the step S2, the specific step of manufacturing the integrated support comprises: fixing the sloping support leg on the lower end surface of the horizontal support leg, sealing the front end surface of the horizontal support leg close to the shipboard side by a sealing plate, and fixedly connecting the horizontal support legs of adjacent sloping wall support frames by the transverse beams, so that the connection position of the transverse beam is close to the sloping wall deck, thereby making the overall center of gravity of the integrated support close to the ship body.

[0016] Further, in the step S2, the step of manufacturing the integrated support further comprises: fixing a cover plate at the end surface in contact with the sloping wall deck on each support leg of the sloping wall support frame.

[0017] Still further, in the step S2, the step of manufacturing the integrated support further comprises: determining the opening distance between the horizontal support leg and the sloping support leg based on the low-temperature pipeline stress calculation report.

[0018] As a further preferred technical solution, in the step S2, the specific step of installing the low-temperature support and the normal-temperature support on the integrated support comprises: arranging the low-temperature support on the integrated support along the design direction of the low-temperature pipeline according to the design direction of the low-temperature pipeline, arranging the normal-temperature support on the integrated support along the design direction of the normal-temperature pipeline according to the design direction of the normal-temperature pipeline, and fixing the low-temperature support and the normal-temperature support on the integrated support in a vertical manner close to the pipeline path direction according to the shortest distance of each pipeline to the integrated support, wherein the low-temperature support is located on one side of the integrated support close to the sloping wall deck.

[0019] As a preferred technical solution, in the step S4, the pipe clamp comprises a low-temperature pipe clamp and a normal-temperature pipe clamp, the low-temperature pipeline is fixed to the low-temperature support through the low-temperature pipe clamp, the normal-temperature pipeline falling on the vertical plane where the transverse beam is located is directly fixed to the integrated support through the normal-temperature pipe clamp, and the normal-temperature pipeline intersecting or parallel to the vertical plane where the inclined wall support is located is fixed and connected with the integrated support through the normal-temperature pipe clamp fixed to the normal-temperature support.

[0020] In a second aspect, the application provides a ship having pipelines and supports arranged according to the pipeline and support integrated arrangement method for the inclined wall region of an LNG ship.

[0021] As described above, the application has the following beneficial effects:

[0022] (1) The pipeline and support integrated arrangement method for the inclined wall region of an LNG ship and the ship can be used to guide the arrangement of actual production design of the inclined wall region of an LNG ship, meet the arrangement requirements of OCIMF specification and the stability requirements of support of the inclined wall region in terms of strength on the premise of meeting the safe operation of a low-temperature pipeline system.

[0023] (2) The pipeline and support integrated arrangement method for the inclined wall region of an LNG ship and the ship, the supports in the application greatly save the amount of steel compared with the prior art; at the same time, a large number of wharf outfitting work is advanced to the site, which reduces the construction difficulty, reduces the cycle, facilitates hoisting, and thus reduces a large amount of material cost and time cost; in addition, the normal-temperature supports and the low-temperature supports can be first fixed to the integrated support in the site, and then the integrated support is hoisted to the integrated support installation position on the inclined wall deck and fixed to the inclined wall deck.

[0024] (3) The pipeline and support integrated arrangement method for the inclined wall region of an LNG ship and the ship, the supports of multiple different systems are arranged on the integrated support, thereby greatly reducing the welding quantity between each support and the deck surface of the inclined wall deck of the ship, and the damage to the outer plate of the ship is minimized; in addition, the total weight of the integrated support, the normal-temperature support and the low-temperature support in the application is 1 / 30 of the weight of the existing arrangement, which greatly reduces the consumption of material cost.

[0025] (4) The pipeline and support integrated arrangement method for the inclined wall region of an LNG ship and the ship, by reasonably arranging the pipelines and supports in the inclined wall region, the triangular empty area is provided, the operation of the valves related to the pipelines, the reading of the sensors and the like are facilitated according to the differences of the pipelines of each system, and the occupation of the action space is reduced; at the same time, the integrated arrangement beautifies the appearance of the ship, makes the whole ship regular and orderly, and improves the product value. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the overall structure perspective view under the pipeline support arrangement method in the present application.

[0027] Figure 2 is the front view of Figure 1 .

[0028] Figure 3 is the top view of Figure 1 .

[0029] Figure 4 is the overall structure perspective view under the existing pipeline support arrangement method.

[0030] Figure 5 is the overall structure left view under the existing pipeline support arrangement method after installing the header, which does not conform to the OCIMF triangular area setting.

[0031] Figure 6 is the overall structure left view after installing the header under the arrangement method of the present application, which conforms to the OCIMF triangular area setting.

[0032] In the drawings, the reference signs are specifically described as follows: 1, inclined wall deck; 2, integrated support; 21, transverse beam; 22, inclined wall support frame; 221, inclined support leg; 222, transverse support leg; 23, closing plate; 24, double plate; 3, low-temperature support; 31, low-temperature pipe clamp; 41, normal-temperature pipe clamp; 42, normal-temperature support; 5, low-temperature pipeline; 51, low-temperature safety pipe; 52, nitrogen pipe; 6, normal-temperature pipeline; 61, instrument and remote control pipe; 62, water spray pipe; 63, cable protection guide pipe; 7, triangular area; 8, through-shore flange. DETAILED DESCRIPTION

[0033] In order to better understand the purpose, structure and function of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0034] In the description of the present application, it should be noted that the position relationship indicated in the specification, such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the position relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation of the present application.

[0035] Example 1

[0036] As Figures 1 to 3 shown, the embodiment provides a method for integrated arrangement of pipe support in LNG ship inclined wall area, the pipe includes normal temperature pipe 6 and low temperature pipe 5, the support includes integrated support 2, the method includes the following steps:

[0037] S1, according to the pipe design, determine the installation position of the integrated support 2 in the inclined wall deck 1 area, and determine the size range of the integrated support 2 on the inclined wall deck 1 area according to the OCIMF specification requirements.

[0038] In the embodiment, the pipe includes normal temperature pipe 6 and low temperature pipe 5, the normal temperature pipe 6 includes water spray pipe 62, cable protection conduit 63 and instrument and remote control pipe 61, the low temperature pipe 5 includes low temperature safety pipe 51 and nitrogen pipe 52, so that 5 systems are integrated on the inclined wall deck 1 by the integrated support 2 of the application, the overall weight of the profile consumed by the support used for the installation of each pipe is 1 / 30 of the existing arrangement, which greatly reduces the consumption.

[0039] According to the trend of the pipe design of the normal temperature pipe 6 and the low temperature pipe 5, the installation position of the integrated support 2 on the inclined wall deck 1 area is determined, so that the installation position of the integrated support 2 on the inclined wall deck 1 area covers the farthest position in the pipe design required by the end of each pipe, and according to the actual design requirement of the pipe, the normal temperature pipe 6 and the low temperature pipe 5 can be arranged near the integrated support 2 along the way, so as to facilitate the subsequent fixation and combination of the normal temperature support 42 and the low temperature support 3 on the integrated support 2. At the same time, according to the OCIMF specification requirements, the maximum size of the integrated support 2 is determined, so that the integrated support 2 is away from the vertex of the inclined wall deck 1 does not fall into the triangular area 7 required by the OCIMF specification 2.2.3, the triangular area 7 is a triangular empty area formed by the vertical upward 3 meters from the flange 8 end surface of the pipe access end of the inclined wall area and the 45° straight line to the bow, so that the integrated support 2 meets the specification requirements, does not occupy the construction and passage space, can fully utilize the space to avoid the interference with the work area of the staff, and ensures the overall arrangement framework for the pipe arrangement in advance, which is economical, practical, beautiful, reliable and the like.

[0040] S2, make integrated support 2, and install low temperature support 3 and normal temperature support 42 on integrated support 2.

[0041] The integrated support 2 comprises several inclined wall support frames 22 and transverse beams 21 arranged between the inclined wall support frames 22, the inclined wall support frame 22 comprises a horizontal support leg 222 and an inclined support leg 221, and the inclined wall support frame 22 is provided with a low-temperature support 3 and a normal-temperature support 42. In the embodiment, the integrated support 2 is welded by square steels with different lengths, that is, the horizontal support leg 222, the inclined support leg 221 and the transverse beam 21 are all made of rectangular steel materials, and the low-temperature support 3 and the normal-temperature support 42 are also made of rectangular steel materials, so that the welding fixing surfaces between the supports are more flat and stable, the construction is facilitated, and the stress balance after the pipeline installation is also facilitated.

[0042] S2-1, manufacturing the integrated support 2.

[0043] Based on the stress calculation report of the low-temperature pipeline 5, the opening distance between the horizontal support leg 222 and the inclined support leg 221 is determined, so as to ensure the bearing capacity after the inclined wall support frame 22 is welded to the inclined wall deck 1 and the low-temperature pipeline 5 is arranged. In another embodiment, based on the stress calculation report of the low-temperature pipeline 5, the low-temperature pipe clamp 31 for fixing the low-temperature pipeline 5 is arranged by means of the transverse beam 21 of the integrated support 2 when the low-temperature pipeline 5 is arranged subsequently, so as to disperse and transmit the stress of the low-temperature pipeline 5 to the transverse beam 21 to increase the stability of the pipeline arrangement. The inclined support leg 221 is welded and fixed to the lower end surface of the horizontal support leg 222, the farthest end vertex of the horizontal extension end of the horizontal support leg 222 does not interfere with the triangular area 7, and the horizontal extension end of the horizontal support leg 222 falls between different system pipelines on the ship side, so that the OCIMF specification requirements are met, and staggered fixing points can be provided for different system pipelines. The square sealing plate 23 with a cross-sectional area slightly larger than that of the square steel is sealed on the front end surface of the horizontal support leg 222 close to the ship side, so as to prevent water corrosion, and a double plate 24 is fixed at the end surface of each support leg which is ready to contact the inclined wall deck 1. The horizontal support legs 222 of adjacent inclined wall support frames 22 are fixed and connected by means of the transverse beam 21, and the connection position of the transverse beam 21 is closer to the inclined wall deck 1, so that the overall gravity center of the integrated support 2 is close to the ship body, the overall integrated support 2 is more stable compared with the existing old arrangement, and the pipelines and supports can be arranged on the side close to the inclined wall deck 1 by arranging the pipe clamp on the transverse beam 21 subsequently, so as to play a role in hiding and hiding the small-diameter pipe, and the overall pipeline arrangement is clean.

[0044] S2-2, installing the low-temperature support 3 and the normal-temperature support 42 on the integrated support 2.

[0045] According to the actual design needs of the low-temperature pipeline 5 and the normal-temperature pipeline 6, the low-temperature support 3 is arranged on the integrated support 2 along the design direction of the low-temperature pipeline 5, and the normal-temperature support 42 is arranged on the integrated support 2 along the design direction of the normal-temperature pipeline 6, thereby reducing the number of each system pipeline support that needs to be directly welded on the inclined wall deck 1, reducing the damage to the inclined wall deck 1 by reducing the number of welds on the inclined wall deck 1, and at the same time, according to the shortest distance of each pipeline to the integrated support 2, the low-temperature support 3 and the normal-temperature support 42 are respectively welded and fixed on the integrated support 2 in the direction of the pipeline path, which can effectively save the material of the low-temperature support 3 and the normal-temperature support 42, and only a minimum amount of material is needed to complete the overall arrangement of each pipeline support on the inclined wall deck 1, thereby eliminating the material consumption and waste caused by a large number of redundant pipeline support arrangements.

[0046] In order to avoid damage to the integrated support 2 caused by the temperature difference between the low-temperature pipeline 5 and the normal-temperature pipeline 6 when they work at the same time, and to avoid the risk of workers being mistakenly frozen when operating the normal-temperature pipeline 6 due to the heat conduction of the metal support, the pipeline design distance of the low-temperature pipeline 5 from the integrated support 2 is relatively far, and the low-temperature pipeline 5 needs to be fixed on the integrated support 2 through the low-temperature support 3; and since the lowest temperature of the low-temperature safety pipe 51 and the nitrogen pipe 52 can reach -163℃ when working, there is a safety risk, so each low-temperature support 3 is arranged on the side of the integrated support 2 close to the inclined wall deck 1, so that workers are not easily injured by accidental contact with low-temperature pipes, thereby improving safety.

[0047] Since the thermal expansion and contraction of the low-temperature liquid flowing in the pipeline during the operation of the low-temperature pipeline 5 will cause a slight vibration to the pipeline, in this embodiment, the low-temperature support 3 adopts an L-shaped square steel, thereby providing more support force for the low-temperature pipeline 5 and reducing the vibration impact of the low-temperature pipeline 5; the normal-temperature support 42 adopts a steel plate, which is fixed on the upper end face or the lower end face of the horizontal support leg 222 in the cross-sectional direction of the horizontal support leg 222, thereby providing a fixing surface for the normal-temperature pipe clamp 41; and since the steel plate is light and thin, the welding operation is simple, thereby reducing the overall weight of the integrated support 2, and at the same time, since the steel plate occupies a small space on the integrated support 2, when more normal-temperature pipelines 6 arranged on the inclined wall deck 1 need to be integrated on the integrated support 2, more welding spaces can be reserved on the integrated support 2; in addition, when there are normal-temperature pipelines 6 arranged in parallel, multiple normal-temperature pipe clamps 41 can be fixed in the height direction of the normal-temperature support 42, and the parallel pipelines can be quickly positioned and installed through distance positioning between the normal-temperature pipe clamps 41 or mutual stacking of the normal-temperature pipe clamps 41, which is simple and portable.

[0048] S3, fixing the integrated support 2 to the inclined wall deck 1: hoist the integrated support 2 assembled with the low-temperature support 3 and the normal-temperature support 42 to the fixing position of the integrated support 2 determined in step S1, fix the inclined wall support 22 to the deck surface of the inclined wall deck 1 through the back plate 24, and set the end surface of the integrated support 2 close to the inclined wall deck 1 and the contact surface of the inclined wall deck 1 apart by the back plate 24, so as to protect the deck surface.

[0049] S4, arranging the pipelines on the integrated support 2 through the low-temperature support 3 and the normal-temperature support 42:

[0050] According to the pipeline design, fix the pipe clamps on the integrated support 2, so that all the pipelines in the area of the inclined wall deck 1 are arranged perfectly depending on the overall framework of the integrated support 2, so as to achieve the effect that the functional areas of the pipelines are regular and the overall appearance is neat and beautiful. The pipe clamps include low-temperature pipe clamps 31 and normal-temperature pipe clamps 41. The low-temperature pipelines 5 are fixed on the low-temperature support 3 through the low-temperature pipe clamps 31, the normal-temperature pipelines 6 falling on the vertical plane of the transverse beam 21 are directly fixed on the integrated support 2 through the normal-temperature pipe clamps 41, the normal-temperature pipelines 6 intersecting or parallel to the vertical plane of the inclined wall support 22 are fixed on the integrated support 2 through the normal-temperature pipe clamps 41 fixed on the normal-temperature support 42. When the normal-temperature pipelines 6 clamped by the normal-temperature pipe clamps 41 are single pipes, a single clamping hole matched with the pipe diameter of the single pipe is arranged on the normal-temperature pipe clamps 41, and when the normal-temperature pipelines 6 clamped by the normal-temperature pipe clamps 41 are multiple parallel pipes, multiple clamping holes matched with the pipe diameters of the pipes are arranged on the normal-temperature pipe clamps 41, and the distribution positions of the clamping holes are the same as the distribution positions of the pipes in the longitudinal section.

[0051] S4-1, arranging the low-temperature pipelines 5: the low-temperature safety pipe 51 and the nitrogen pipe 52 are fixed on the integrated support 2 through the low-temperature pipe clamps 31 fixed on the low-temperature support 3.

[0052] S4-2. Arrangement of ambient temperature pipeline 6: Since the instrument and remote control tubes in the ambient temperature pipeline 6 are thin and fragile, if the instrument and remote control tubes are arranged on the side of the integrated bracket 2 near the ship's side, they are easily damaged from the outside. In addition, a large number of thin pipes arranged on the outside look messy and affect the aesthetics. Therefore, the instrument and remote control tubes are fixed to the side of the integrated bracket 2 near the sloping deck 1 by ambient temperature pipe clamps 41. This avoids the risk of external mechanical damage by being close to the sloping deck 1. At the same time, it also increases the efficiency of the staff when operating each pipeline by improving the cleanliness. In this embodiment, the instrument and remote control tubes are arranged parallel to each other above the transverse beam 21 by ambient temperature pipe clamps 41. The lower end face of the ambient temperature pipe clamps 41 used to fix the instrument and remote control tubes is vertically fixed to the upper end face of the transverse beam 21. Meanwhile, since the main function of the water spray pipe 62 is to spray the valve, and the cable needs to be connected to the valve, and it is more convenient to operate the valve by arranging it closer to the ship's side, both the water spray pipe 62 and the cable protection pipe are set on the side of the integrated bracket 2 near the ship's side by ambient temperature pipe clamps 41 fixed to the ambient temperature bracket 42. The height of the ambient temperature pipe clamp 41 for the water spray pipe 62 is higher than the height of the ambient temperature pipe clamp 41 for the cable protection pipe.

[0053] S5. After completing the piping layout, confirm and adjust the positions of the ambient temperature piping 6 and the cryogenic piping 5 fixed on the inclined wall deck 1 by the integrated bracket 2, in accordance with the OCIMF specifications. If any piping falls within the triangular area 7 specified in OCIMF specification 2.2.3, move that piping, its clamps, and the brackets towards the inclined wall deck 1 on the integrated bracket 2 until it meets the OCIMF specifications. The side view of the overall structure after the manifold is installed is shown below. Figure 6 As shown.

[0054] Example 2

[0055] like Figures 1 to 3 As shown, this embodiment provides a vessel having pipelines and supports arranged according to the method of Embodiment 2. The supports include pipeline supports for the sloping wall area of ​​an LNG carrier. The pipelines include ambient temperature pipelines 6 and cryogenic pipelines 5. The pipeline supports include an integrated support 2 fixed to the sloping wall deck 1. The integrated support 2 is provided with an ambient temperature support 42 for fixing the ambient temperature pipeline 6 and a cryogenic support 3 for fixing the cryogenic pipeline 5. The vertex of the integrated support 2 away from the sloping wall deck 1 does not fall within the triangular area 7 required by OCIMF specification 2.2.3. The integrated support 2 includes several sloping wall support frames 22, which are welded and fixed to adjacent sloping wall support frames 22 by transverse beams 21. The sloping wall support frames 22 are fixed to the sloping wall deck 1 by a cladding plate 24.

[0056] The oblique wall support frame 22 comprises a horizontal support leg 222 and an oblique support leg 221, and the distance between the horizontal support leg 222 and the oblique support leg 221 is determined based on the stress calculation report result of the low-temperature pipeline 5, so that the oblique wall support frame 22 can uniformly bear the weight and stress of the low-temperature pipeline 5 after being fixed to the oblique wall deck 1, so as to avoid stress concentration and excessive deformation; the end surface of the horizontal extension end of the horizontal support leg 222 is provided with a sealing plate 23 for sealing, and the cross section of the sealing plate 23 is larger than that of the horizontal support leg 222; the horizontal beam 21 is fixed between adjacent horizontal support legs 222, and the horizontal beam 21 is located on the side of the horizontal support leg 222 close to the oblique wall deck 1.

[0057] In the embodiment, the normal-temperature pipeline 6 comprises a water spray pipe 62, a cable protection conduit 63 and an instrument and remote control pipe 61, the low-temperature pipeline 5 comprises a low-temperature safety pipe 51 and a nitrogen pipe 52, the water spray pipe 62 and the cable protection conduit 63 related to the valve are fixed to the side of the integrated support 2 close to the oblique wall deck 1 through a normal-temperature support 42 provided with a normal-temperature pipe clamp 41, and the height of the water spray pipe 62 is higher than that of the cable protection conduit 63, the instrument and remote control pipe 61 is fixed to the horizontal support leg 222 through the normal-temperature pipe clamp 41, and the low-temperature safety pipe 51 and the nitrogen pipe 52 are fixed to the side of the integrated support 2 close to the ship side through a low-temperature support 3 provided with a low-temperature pipe clamp 31.

[0058] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any person skilled in the art knows that various changes or equivalent replacements can be made to the features and embodiments without departing from the spirit and scope of the present application. In addition, the features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the present application without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. An integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship, characterized in that, The pipeline includes a normal temperature pipeline (6) and a low temperature pipeline (5), the support includes an integrated support (2), and the method includes the following steps: S1. Determine the installation position of the integrated bracket (2) in the inclined wall deck (1) area according to the pipeline design, and determine the size range of the integrated bracket (2) in the inclined wall deck (1) area according to the OCIMF specification requirements; S2. Fabricate an integrated support (2) and assemble a low-temperature support (3) and a normal-temperature support (42) on the integrated support (2); S3. Install and fix the assembled integrated bracket (2) onto the inclined wall deck (1); S4. Pipelines are arranged on the integrated support (2) by using low temperature support (3) and normal temperature support (42) in conjunction with pipe clamps.

2. The integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship according to claim 1, characterized in that, In step S1, the specific steps for determining the installation position of the integrated bracket (2) in the inclined wall deck (1) area according to the pipeline design include: determining the installation position of the integrated bracket (2) in the inclined wall deck (1) area according to the pipeline design of the ambient temperature pipeline (6) and the low temperature pipeline (5), so that the installation position of the integrated bracket (2) in the inclined wall deck (1) area covers the position that the end of each pipeline needs to reach.

3. The integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship according to claim 1, characterized in that, In step S1, the specific steps for determining the size range of the integrated support (2) in the inclined deck (1) area according to the OCIMF specification requirements include: determining the maximum size of the integrated support (2) according to the OCIMF specification requirements, so that the integrated support (2) is far away from the apex of the inclined deck (1) and does not fall into the triangular area (7) required by OCIMF specification 2.2.

3. The triangular area (7) is the triangular open area formed by 3 meters vertically upward from the end face of the pipeline to shore flange (8) in the inclined deck area and a straight line inclined upward at 45° towards the midship.

4. The integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship according to claim 1, characterized in that, The integrated support (2) includes several inclined wall support frames (22) and a transverse beam (21) disposed between the inclined wall support frames (22). The inclined wall support frame (22) includes a transverse support leg (222) and an inclined support leg (221). The inclined wall support frame (22) is provided with a low temperature support (3) and a normal temperature support (42).

5. The integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship according to claim 4, characterized in that, In step S2, the specific steps of manufacturing the integrated bracket (2) include: fixing the inclined support leg (221) to the lower end face of the horizontal support leg (222), sealing the front end face of the horizontal support leg (222) near the ship's side with a sealing plate (23), and fixing the horizontal support legs (222) of adjacent inclined wall support brackets (22) together with a transverse beam (21), so that the connection position of the transverse beam (21) is close to the inclined wall deck (1), thereby making the overall center of gravity of the integrated bracket (2) close to the ship body.

6. The integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship according to claim 5, characterized in that, In step S2, the step of manufacturing the integrated bracket (2) further includes fixing a cover plate (24) at the end face of each support leg of the inclined wall support frame (22) that contacts the inclined wall deck (1).

7. The integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship according to claim 6, characterized in that, In step S2, the step of manufacturing the integrated support (2) further includes: determining the crotch distance between the horizontal support leg (222) and the diagonal support leg (221) based on the stress calculation report of the low temperature pipeline (5).

8. The integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship according to claim 4, characterized in that, In step S2, the specific steps of installing the low-temperature support (3) and the normal temperature support (42) on the integrated support (2) include: arranging the low-temperature support (3) along the route of the low-temperature pipeline (5) on the integrated support (2), arranging the normal temperature support (42) along the route of the normal temperature pipeline (6) on the integrated support (2), and fixing the low-temperature support (3) and the normal temperature support (42) vertically to the integrated support (2) as close as possible along the pipeline path direction according to the shortest distance from each pipeline to the integrated support (2). The low-temperature support (3) is located on the side of the integrated support (2) close to the inclined wall deck (1).

9. The integrated arrangement method for pipeline supports in the inclined wall area of ​​an LNG ship according to claim 1, characterized in that, In step S4, the pipe clamps include a low-temperature pipe clamp (31) and a normal-temperature pipe clamp (41). The low-temperature pipe (5) is fixed to the low-temperature support (3) by the low-temperature pipe clamp (31). The normal-temperature pipe (6) that falls on the vertical plane of the transverse beam (21) is directly fixed to the integrated support (2) by the normal-temperature pipe clamp (41). The normal-temperature pipe (6) that intersects or is parallel to the vertical plane of the inclined wall support frame (22) is fixedly connected to the integrated support (2) by the normal-temperature pipe clamp (41) fixed to the normal-temperature support (42).

10. A ship, characterized in that, The vessel has pipes and supports arranged according to any one of claims 1 to 9, which are integrated arrangements of pipe supports for the inclined wall area of ​​an LNG ship.

Images