Integrated structure and design method for manifold platform and deck house on LNG bunkering transport vessel

Abstract

Disclosed in the present invention are an integrated structure and design method for a manifold platform and a deck house on an LNG bunkering transport vessel. In the present invention, all piping originally required to be arranged on the manifold platform is simply arranged at the top of the deck house or at the top of the deck house and a cantilevered platform, thereby eliminating the manifold platform originally independently arranged on the deck, so that a large amount of building materials required for constructing the manifold platform are saved, the construction cost of an enterprise is reduced, and a large amount of deck space can also be freed up for arranging cranes, piping, cables, and the like. Furthermore, the overall height of the integrated structure of the present application is less than the height of the manifold platform originally independently arranged on the deck in the traditional design. Therefore, the arrangement height of the piping originally required to be arranged on the manifold platform and an original manifold platform liquid collecting tank can be effectively reduced, thereby avoiding obstruction of the navigator's field of view.

Description

Integrated Structure and Design Method of Gas Gathering Platform and Deck Room on LNG Bunkering Ships Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to an integrated structure and design method for an LNG bunkering transport ship's gas gathering platform and deckhouse. Background Technology

[0002] Depending on the type of vessel, LNG bunkering ships need to be equipped with high and low level gas collection platforms for bunkering and replenishing cryogenic liquid cargo. The gas collection platform area usually needs to be equipped with a liquid collection tank to prevent the cryogenic liquid cargo from leaking and dripping onto the hull structure during transportation and transfer, which could cause irreversible damage to the hull structure.

[0003] Currently, the high-level and low-level gas gathering platforms on LNG bunkering ships are generally independent modules. The high-level gas gathering platform, the low-level gas gathering platform, and the deckhouse are arranged in different positions on the main deck and are not structurally connected to each other. Therefore, in the hull design, in addition to arranging the deckhouse on the main deck, separate space needs to be reserved on the main deck with limited space to build the outfitting platform for the high-level and low-level gas gathering platforms. Then, the liquid collection tank and corresponding pipelines and pipeline supports are installed on the outfitting platform.

[0004] However, due to the small size, numerous equipment, and complex system functions of LNG bunkering vessels, the deck space on the main deck is extremely limited. If there is not enough space on the main deck to arrange the gas collection platform, the length or width of the ship needs to be increased, which not only increases the design cost but also increases the danger of the actual ship's navigation.

[0005] Especially for LNG bunkering vessels navigating inland waterways, the conventional technology of designing the gas gathering platform and deckhouse separately limits the available space for the manifold of the traditional high-level gas gathering platform due to the limited visibility of the driver. Only a portion of the space on the bow side of the deckhouse can be used for the manifold, but this may affect the driver's visibility. As shown in Figure 1, for vessels with a small deck area, deck equipment such as cranes need to be installed on the bow side of the deckhouse, and the manifold of the high-level gas gathering platform cannot be installed. Summary of the Invention

[0006] In view of this, the present invention provides an integrated structure and design method for the gas gathering platform and deckhouse on an LNG bunkering transport vessel, in order to solve the problems existing in the background art.

[0007] An integrated structure of a gas gathering platform and deckhouse on an LNG bunkering vessel includes a deckhouse located on the main deck and a enclosure panel vertically mounted on the top of the deckhouse to form a closed area. The top panel of the deckhouse serves as the bottom plate of the original gas gathering platform's liquid collection tank located at other locations on the main deck. The enclosure panel serves as the side panel of the original gas gathering platform's liquid collection tank. Pipelines that were originally to be arranged on the gas gathering platform are fixed to the top of the deckhouse via support seats, with their leak-prone parts located above the closed area enclosed by the enclosure panel.

[0008] Preferably, the roof of the deckhouse extends outward in the Y direction from both ends to form cantilever platforms. The cantilever platforms and the top plate of the deckhouse together serve as the platform base of the original gas collection platform. The first pipeline that was originally to be arranged on the gas collection platform is fixed to the top of the cantilever platform and the deckhouse through support seats. The second pipeline that was originally to be arranged on the gas collection platform is fixed to the bottom of the cantilever platform through pipe supports. The space under the cantilever platform serves as a passageway.

[0009] Preferably, one side of the enclosed area formed by the enclosure panels is aligned with the side edge of the cantilever platform, and the other opposite side extends to the deckhouse.

[0010] Preferably, the cantilever platform is further provided with a support reinforcement, one side of which is fixed to the side wall of the deckhouse and the other adjacent side is fixed to the bottom of the cantilever platform. The support reinforcement is provided with a through hole for the second pipeline to pass through.

[0011] Preferably, the first pipeline includes a filling pipe;

[0012] The second pipeline includes cable conduits and cryogenic pipelines used to transport liquid cargo to the cabin.

[0013] Preferably, the support reinforcement is positioned to align with the ship's ribs.

[0014] Preferably, the top edge of the deckhouse is provided with a water-blocking plate that connects with the surrounding plate.

[0015] Preferably, a reinforcing structure is added to the reverse side of the top plate of the deckhouse.

[0016] An integrated design method for the gas gathering platform and deckhouse on an LNG bunkering vessel includes the following steps:

[0017] S1. Calculate the temperature cloud map of the gas collection platform liquid collection tank and deckhouse based on the temperature field, and select the steel grade based on the temperature cloud map of the gas collection platform liquid collection tank and deckhouse.

[0018] S2. Determine whether it is necessary to install cantilevered platforms at both ends of the roof of the deckhouse based on the area occupied by the pipelines originally to be laid on the gas collection platform and the roof area of ​​the deckhouse.

[0019] If the area of ​​the deckhouse roof is not less than the area occupied by the pipes that were originally to be laid on the gas collection platform, then proceed to step S3.

[0020] If the area of ​​the deckhouse roof is smaller than the area occupied by the pipelines that were originally to be laid on the gas collection platform, then proceed to step S4.

[0021] S3, directly fix multiple enclosure panels vertically on the top plate of the deckhouse to form a closed area, so that the top plate of the deckhouse serves as the bottom plate of the original gas collection platform liquid collection tank located in other positions on the main deck, and the enclosure panels serve as the side panels of the original gas collection platform liquid collection tank.

[0022] All pipelines that were originally intended to be laid on the gas collection platform were fixed to the top of the deckhouse with support brackets, and the parts that were prone to leakage were located above the enclosed area formed by the cofferdam.

[0023] S4. Cantilever platforms are set at both ends of the roof of the deckhouse. Multiple enclosure panels are vertically fixed on the cantilever platforms and the top plate of the deckhouse to form a closed area. The cantilever platforms and the top plate of the deckhouse together serve as the bottom plate of the original gas collection platform liquid collection tank that was originally set independently at other locations on the main deck. The enclosure panels serve as the side panels of the original gas collection platform liquid collection tank.

[0024] The first pipeline, which was originally to be placed on the gas collection platform, is fixed to the top of the cantilever platform and the deckhouse with a support seat, and its leakage-prone part is located above the enclosed area formed by the cofferdam. The second pipeline, which was originally to be placed on the gas collection platform, is fixed to the bottom of the cantilever platform with a pipe bracket, and the space under the cantilever platform is used as a passageway.

[0025] S5, a reinforcing structure is installed on the reverse side of the deckhouse roof.

[0026] Preferably, if the area of ​​the deckhouse roof is not less than the area occupied by the pipelines that originally needed to be arranged on the gas collection platform, then the enclosed area formed by multiple panels on the deckhouse roof shall be made of 304L or 316L stainless steel, while other areas on the deckhouse roof shall be made of ordinary steel.

[0027] If the area of ​​the deckhouse roof is smaller than the area occupied by the pipelines that originally needed to be laid on the gas collection platform, then the enclosed area formed by the multiple cofferdams on the cantilever platform and the deckhouse roof should be made of 304L or 316L stainless steel, while other areas on the deckhouse roof should be made of ordinary steel.

[0028] The beneficial effects of this invention are:

[0029] 1. The deckhouse is designed with the minimum height, and all the pipelines that would have been placed on the gas collection platform are now located on the deckhouse or on top of the deckhouse and the cantilever platform. This eliminates the need for the separate gas collection platform on the deck, saving a large amount of building materials and reducing the company's construction costs. It also frees up a lot of deck space for cranes, pipelines, cables, etc. Furthermore, since the overall height of the integrated structure in this application is less than the height of the separate gas collection platform on the deck in the traditional design, the height of the pipelines and the original gas collection platform's liquid collection tank that would have been placed on the gas collection platform can be effectively reduced, thus avoiding any obstruction of the driver's view.

[0030] 2. Using the top of the deckhouse or the deckhouse and the cantilever platform directly as the bottom of the liquid collection tank can effectively reduce the height of the liquid collection tank and the cryogenic pipeline of the gas collection platform compared with the traditional design, thus avoiding obstructing the driver's view.

[0031] 3. By extending cantilever platforms at both ends of the deckhouse, the liquid collection tank can be set on the cantilever platform or a part of the cantilever platform and the top of the deckhouse. The entire or most area of ​​the top of the deckhouse can be directly used as a gas collection platform for laying cryogenic pipelines, which can effectively improve the utilization rate of the deck space in the height direction. Furthermore, by arranging the first pipeline on the top of the cantilever platform and the deckhouse, and arranging the second pipeline on the opposite top of the cantilever platform, the filling pipe is arranged separately from other cryogenic pipelines and cable pipes. This not only makes full use of the space under the cantilever platform, but also effectively reduces the overall height of the pipeline area, thereby reducing the overall height of the integrated structure of this application.

[0032] 4. By integrating the liquid collection tank into the deckhouse or the cantilever platform, or the top of both the deckhouse and the cantilever platform, the top of the deckhouse is directly used as a gas collection platform for laying cryogenic pipelines. The top plate of the deckhouse has higher support strength, which can provide more stable support for cryogenic pipelines and effectively cope with cryogenic stress and pipeline vibration. Moreover, the integrated structure of this application is simpler in appearance. Since the overall height of the integrated structure of this application is lower than the minimum design height of the original gas collection platform compared with the traditional design, it can effectively reduce wind resistance and avoid airflow whistling. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 is a schematic diagram of a traditional gas collection platform and deckhouse arranged separately and independently.

[0035] Figure 2 is a schematic diagram of the structure of the present invention.

[0036] The labels in the diagram have the following meanings: 1 is the deckhouse, 2 is the roof of the deckhouse, 3 is the cofferdam, 4 is the tank bottom plate, 5 is the cantilever platform, 6 is the support reinforcement, 7 is the water barrier, 8 is the first pipeline, 9 is the support base, 10 is the second pipeline, 11 is the passageway, 12 is the bridge, 13 is the high-level air collection platform, and 14 is the pipeline layout of the high-level air collection platform. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0038] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0039] It should be understood that although the terms first, second, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0040] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0042] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Example 1: The present invention provides an integrated structure of gas gathering platform and deckhouse on an LNG bunkering transport ship, including deckhouse 1 set on the main deck and enclosure 3 vertically set on the top of deckhouse 1 and forming a closed area.

[0044] In this embodiment, the original gas collection platform liquid collection tank, which was originally set up independently in other locations on the main deck, is referred to as the original gas collection platform liquid collection tank, and the original gas collection platform, which was originally set up independently in other locations on the main deck, is referred to as the original gas collection platform. The top plate of the deckhouse 1 serves as the bottom plate 4 of the original gas collection platform liquid collection tank, and the enclosure 3 serves as the side panel of the original gas collection platform liquid collection tank. The pipelines that were originally to be arranged on the gas collection platform are fixed to the top of the deckhouse 1 by the support seat 9, and the parts that are prone to leakage are located above the closed area enclosed by the enclosure 3. After the cryogenic liquid leaks, it can be directly collected in the closed area enclosed by the enclosure 3 to prevent the leaked cryogenic liquid from spreading and damaging the non-cryore structure.

[0045] Specifically, in this embodiment, the area of ​​the top plate of the deckhouse 1 is not less than the area occupied by the pipes that originally needed to be arranged on the gas collection platform. Based on the area occupied by all the pipes that originally needed to be arranged on the gas collection platform on the ship, a part or all of the area is selected directly on the top plate of the deckhouse 1, and the surrounding plate 3 is welded and fixed at the edge of the selected area. The surrounding plate 3 is used to enclose the selected area into a closed area as a liquid collection tank, so that the top plate of the deckhouse 1 serves as the bottom plate 4 of the original gas collection platform liquid collection tank, and the surrounding plate 3 serves as the side plate of the original gas collection platform liquid collection tank.

[0046] All pipelines originally intended to be laid on the gas collection platform are now laid using the deckhouse 1 as the platform and the top plate of the deckhouse 1 as the platform surface. That is, the pipeline support 9 is fixed to the top of the deckhouse 1 and the parts most prone to leakage are located above the enclosed area formed by the cofferdam 3. The pipelines include a filling pipe for conveying cryogenic liquid cargo to other ships, a cryogenic pipeline for conveying cryogenic liquid cargo to the engine room, and cable conduits.

[0047] In this embodiment, the length and width of the enclosed area (liquid collection tank) formed by the enclosure 3 are slightly smaller than the length and width of the top plate of the deckhouse 1 at its location, and the enclosure 3 on at least one side of the enclosed area (liquid collection tank) is aligned with the corresponding side on the top plate of the deckhouse 1.

[0048] The top edge of the deckhouse 1 is provided with a water-blocking plate 7 that connects to the surrounding plate 3, so that the water-blocking plate 7 is connected and sealed with the surrounding plate 3 around the liquid collection tank, thereby restraining rainwater when necessary and preventing rainwater from pouring down from the edge of the deckhouse roof. It should be noted that the top plate of the deckhouse 1 is not a horizontal plane, but an inclined plane. The plate surface with the liquid collection tank on the top plate of the deckhouse 1 is lower, while the plate surface on the opposite side is higher. A drainage hole is provided at the lower part of the plate surface of the top plate of the deckhouse 1. Preferably, the drainage hole can be located on the inner side of the water-blocking plate 7 so that rainwater on the top of the deckhouse can flow out through the drainage hole.

[0049] Typically, LNG bunkering vessels have high-level gas collection platforms, low-level gas collection platforms, and deckhouses located at different positions on the main deck, with the high-level and low-level gas collection platforms situated forward of the deckhouse (bow side). Each of these platforms has its own minimum and maximum design height, but generally, the overall height of the high-level and low-level gas collection platforms is higher than that of the deckhouse (because the gas collection platforms need to house cryogenic pipelines at a certain height to ensure the smooth transport of cryogenic liquefied cargo). Since the gas collection platforms are located forward of the deckhouse, they obstruct the driver's view and increase wind resistance, generating whistling airflow.

[0050] In this embodiment, the deckhouse 1 is set at the minimum design height, and all the pipelines that originally needed to be arranged on the gas collection platform are arranged on the top of the deckhouse 1. The gas collection platform on the deck and the liquid collection tank that originally needed to be set up separately are eliminated, saving a lot of building materials required to build the gas collection platform and liquid collection tank, reducing the company's construction costs. Moreover, since the overall height of the integrated structure of this application is less than the height of the gas collection platform that was originally set up separately on the deck in the traditional design, the arrangement height of the pipelines that originally needed to be arranged on the gas collection platform and the original gas collection platform liquid collection tank can be effectively reduced, and there will be no problem of obstructing the driver's view.

[0051] Since all the pipelines and liquid collection tanks that were originally to be placed on the gas collection platform are now located on the top of deckhouse 1, a reinforcing structure can be added to the reverse side of the top plate of deckhouse 1 to ensure effective and stable alignment and support.

[0052] In this embodiment, the deckhouse 1 is a cargo machinery room, but it can also be other deckhouses.

[0053] Meanwhile, since most of the pipelines arranged on the top of deckhouse 1 (i.e. the pipelines that were originally to be arranged on the gas gathering platform) are cryogenic pipelines that need to transport cryogenic liquid cargo (liquid LNG), it is necessary to calculate the temperature cloud map of the enclosed area of ​​the top plate and the surrounding plate 3 of deckhouse 1 through temperature field calculation, and adjust the steel grade of the relevant parts of the structure accordingly to meet the strength and functional requirements of the integrated design. In this embodiment, the enclosed area formed by the multiple surrounding plates 3 on the top plate of deckhouse 1 is made of 304L or 316L stainless steel, while other areas on the top plate of deckhouse 1 are made of ordinary steel.

[0054] Example 2: The present invention provides an integrated structure of a gas gathering platform and a deckhouse on an LNG bunkering transport ship, including a deckhouse 1 set on the main deck, an overhanging platform 5 extending from both ends of the roof of the deckhouse in the Y direction, and a enclosure 3 vertically set on the top of the deckhouse 1 and the top of the overhanging platform 5 to form a closed area.

[0055] Specifically, in this embodiment, the top area of ​​the deckhouse 1 is smaller than the area occupied by the pipes that originally needed to be arranged on the gas collection platform. Based on the area occupied by all the pipes that originally needed to be arranged on the gas collection platform, the top of the cantilever platform 5 and part or all of the top area of ​​the deckhouse 1 are selected as the area. The enclosure plate 3 is welded and fixed at the edge of the selected area. The enclosure plate 3 is used to enclose the selected area into a closed area as a liquid collection tank. The top of the cantilever platform 5 and the deckhouse 1 together serve as the bottom plate 4 of the original gas collection platform liquid collection tank, and the enclosure plate 3 serves as the side panel of the original gas collection platform liquid collection tank. All pipelines originally intended to be laid on the gas collection platform are laid on the platform consisting of the deckhouse 1 and the cantilever platform 5, and the entire top plate consisting of the deckhouse 1 and the cantilever platform 5 is laid on the platform surface. The first pipeline 8 originally intended to be laid on the gas collection platform is fixed to the top of the cantilever platform 5 and the deckhouse 1 by the support seat 9, and its leakage-prone part is located above the closed area enclosed by the cofferdam 3. The second pipeline 10 originally intended to be laid on the gas collection platform is fixed to the bottom of the cantilever platform 5 by the pipe bracket. The space under the cantilever platform 5 serves as a passageway 11.

[0056] The first pipeline 8 includes a refueling pipe for supplying cryogenic liquid cargo to other vessels; the second pipeline 10 includes a cable conduit and a cryogenic pipeline for supplying cryogenic liquid cargo to the engine room. By arranging the first pipeline 8 on top of the cantilever platform 5 and the deckhouse 1, and arranging the second pipeline 10 on the opposite top of the cantilever platform 5, the refueling pipe is arranged separately from other cryogenic pipelines and cable conduits. This not only makes full use of the space below the cantilever platform, but also effectively reduces the overall height of the pipeline area, thereby reducing the overall height of the integrated structure of this application.

[0057] In this embodiment, one side of the enclosed area formed by the enclosure 3 is aligned with the side edge of the cantilever platform 5, and the other opposite side extends to the deckhouse 1. The width of the enclosed area formed by the enclosure 3 is smaller than the width of the cantilever platform 5.

[0058] The cantilever platform 5 is also equipped with a support reinforcement 6. One side of the support reinforcement 6 is fixed to the side wall of the deckhouse 1, and the other adjacent side is fixed to the bottom of the cantilever platform 6. The support reinforcement 6 is provided with a through hole for the second pipe 10 to pass through. The position of the support reinforcement 6 is aligned with the rib position of the ship. Preferably, one support reinforcement 6 can be provided at each rib position.

[0059] The top edge of the deckhouse 1 is provided with a water-blocking plate 7 that connects to the surrounding plate 3, so that the water-blocking plate 7 is connected and sealed with the surrounding plate 3 around the liquid collection tank, thereby restraining rainwater when necessary and preventing rainwater from pouring down from the edge of the deckhouse roof. It should be noted that the top plate of the deckhouse 1 is not a horizontal plane, but an inclined plane. The plate surface with the liquid collection tank on the top plate of the deckhouse 1 is lower, while the plate surface on the opposite side is higher. A drainage hole is provided at the lower part of the plate surface of the top plate of the deckhouse 1. Preferably, the drainage hole can be located on the inner side of the water-blocking plate 7 so that rainwater on the top of the deckhouse can flow out through the drainage hole.

[0060] Typically, LNG bunkering vessels have an elevated gas collection platform, a low-level gas collection platform, and a deckhouse located at different positions on the main deck. The elevated and low-level gas collection platforms are situated forward of the deckhouse (bow side). Each of these platforms has its own minimum and maximum design height, but generally, the elevated gas collection platform is higher than the deckhouse (because the gas collection platform needs to house cryogenic piping at a certain height to ensure the smooth transport of cryogenic liquefied cargo). Since the gas collection platform is located forward of the deckhouse, it obstructs the driver's view from the bridge and also increases wind resistance, generating whistling airflow.

[0061] In this embodiment, the deckhouse 1 is set at the minimum design height, and all the pipelines that originally needed to be arranged on the gas collection platform are arranged on the top of the deckhouse 1. The gas collection platform on the deck and the liquid collection tank that originally needed to be set up separately are eliminated, saving a lot of building materials required to build the gas collection platform and liquid collection tank, reducing the company's construction costs. Moreover, since the overall height of the integrated structure of this application is less than the height of the gas collection platform that was originally set up separately on the deck in the traditional design, the arrangement height of the pipelines that originally needed to be arranged on the gas collection platform and the original gas collection platform liquid collection tank can be effectively reduced, and there will be no problem of obstructing the driver's view.

[0062] Since all the pipelines and liquid collection tanks that were originally to be placed on the gas collection platform are now located on the top of deckhouse 1, a reinforcing structure can be added to the reverse side of the top plate of deckhouse 1 to ensure effective and stable alignment and support.

[0063] In this embodiment, the deckhouse 1 is a cargo machinery room, but it can also be other deckhouses.

[0064] Meanwhile, since most of the pipelines arranged on the top of the deckhouse 1 (i.e. the pipelines that were originally to be arranged on the gas gathering platform) are cryogenic pipelines that need to transport cryogenic liquid cargo (liquid LNG), it is necessary to calculate the temperature cloud map of the enclosed area of ​​the top plate and the surrounding plate 3 of the deckhouse 1 through temperature field calculation, and adjust the steel grade of the relevant parts of the structure accordingly to meet the strength and functional requirements of the integrated design. In this embodiment, the enclosed area formed by the cantilever platform 5 and the multiple surrounding plates 3 on the top plate of the deckhouse 1 is made of 304L or 316L stainless steel, while other areas on the top plate of the deckhouse 1 are made of ordinary steel.

[0065] This invention also provides an integrated design method for the gas gathering platform and deckhouse on an LNG bunkering transport vessel, specifically including the following steps:

[0066] S1. Calculate the temperature cloud map of the gas collection platform liquid collection tank and deckhouse based on the temperature field, and select the steel grade based on the temperature cloud map of the gas collection platform liquid collection tank and deckhouse.

[0067] S2, Based on the area occupied by the pipelines originally to be arranged on the gas collection platform and the area of ​​the top plate of the deckhouse 1, determine whether it is necessary to set up cantilever platforms 5 at both ends of the roof of the deckhouse 1.

[0068] If the area of ​​the top plate of deckhouse 1 is not less than the area occupied by the pipelines that were originally to be arranged on the gas collection platform, then proceed to step S3.

[0069] If the area of ​​the top plate of deckhouse 1 is smaller than the area occupied by the pipelines that were originally to be laid on the gas collection platform, then proceed to step S4.

[0070] S3, directly fix multiple enclosure panels 3 vertically on the top plate of the deckhouse 1 to form a closed area, so that the top plate of the deckhouse 1 serves as the bottom plate 4 of the original gas collection platform liquid collection tank located at other locations on the main deck, and the enclosure panels 3 serve as the side panels of the original gas collection platform liquid collection tank.

[0071] All pipelines that were originally to be laid on the gas collection platform are fixed to the top of the deckhouse 1 through the support seat 9, and the parts that are prone to leakage are located above the closed area enclosed by the enclosure 3.

[0072] S4, cantilever platforms 5 are set at both ends of the roof of deckhouse 1. Multiple enclosure panels 3 are vertically fixed on the cantilever platforms 5 and the top plate of deckhouse 1 to form a closed area, so that the cantilever platforms 5 and the top plate of deckhouse 1 together serve as the bottom plate 4 of the original gas collection platform liquid collection tank that was originally set independently at other locations on the main deck, and the enclosure panels 3 serve as the side panels of the original gas collection platform liquid collection tank.

[0073] The first pipeline 8, which was originally to be placed on the gas collection platform, is fixed to the top of the cantilever platform 5 and the deckhouse 1 by means of the support seat 9, and its easily leaking part is located above the closed area enclosed by the cofferdam 3. The second pipeline 10, which was originally to be placed on the gas collection platform, is fixed to the bottom of the cantilever platform 5 by means of the pipe bracket, and the space under the cantilever platform 5 is used as a passageway 11.

[0074] S5, a reinforcing structure is installed on the reverse side of the top plate of deckhouse 1.

[0075] Preferably, if the area of ​​the top plate of the deckhouse 1 is not less than the area occupied by the pipeline that originally needs to be arranged on the gas collection platform, then the enclosed area formed by the multiple enclosure plates 3 on the top plate of the deckhouse 1 shall be made of 304L or 316L stainless steel, and other areas on the top plate of the deckhouse 1 shall be made of ordinary steel.

[0076] If the area of ​​the top plate of deckhouse 1 is smaller than the area occupied by the pipelines that originally needed to be arranged on the gas collection platform, then the enclosed area formed by the cantilever platform 5 and the multiple enclosure plates 3 on the top plate of deckhouse 1 shall be made of 304L or 316L stainless steel, while other areas on the top plate of deckhouse 1 shall be made of ordinary steel.

[0077] This application can be used not only on LNG bunkering vessels, but also on LNG transport vessels, which can be inland waterway vessels or vessels sailing at sea.

[0078] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. An integrated structure of a gas gathering platform and deckhouse on an LNG bunkering transport vessel, characterized in that, It includes a deckhouse (1) set on the main deck and a enclosure (3) set vertically on the top of the deckhouse (1) to form a closed area. The top plate of the deckhouse (1) serves as the bottom plate (4) of the original gas collection platform liquid collection tank set at other locations on the main deck. The enclosure (3) serves as the side panel of the original gas collection platform liquid collection tank. The pipelines that were originally to be arranged on the gas collection platform are fixed to the top of the deckhouse (1) by the support (9) and the parts that are prone to leakage are located above the closed area enclosed by the enclosure (3).

2. The integrated structure of the gas gathering platform and deckhouse on an LNG bunkering transport vessel according to claim 1, characterized in that, The roof of the deckhouse (1) extends outward in the Y direction from both ends to form cantilever platforms (5). The cantilever platforms (5) and the top plate of the deckhouse (1) together serve as the platform base of the original gas collection platform. The first pipeline (8) that was originally to be arranged on the gas collection platform is fixed to the top of the cantilever platform (5) and the deckhouse (1) by the support seat (9). The second pipeline (10) that was originally to be arranged on the gas collection platform is fixed to the bottom of the cantilever platform (5) by the pipe bracket. The space under the cantilever platform (5) serves as a passageway (11).

3. The integrated structure of the gas gathering platform and deckhouse on an LNG bunkering transport vessel according to claim 2, characterized in that, One side of the enclosed area formed by the enclosure (3) is aligned with the side edge of the cantilever platform (5), and the other opposite side extends to the deckhouse (1).

4. The integrated structure of the gas gathering platform and deckhouse on an LNG bunkering transport vessel according to claim 2, characterized in that, The cantilever platform (5) is also provided with a support reinforcement (6). One side of the support reinforcement (6) is fixed to the side wall of the deckhouse (1), and the other adjacent side is fixed to the bottom of the cantilever platform (6). The support reinforcement (6) is provided with a through hole for the second pipeline (10) to pass through.

5. The integrated structure of the gas gathering platform and deckhouse on an LNG bunkering transport vessel according to claim 2, characterized in that, The first pipeline (8) includes a filling pipe; The second pipeline (10) includes a cable conduit and a cryogenic pipeline for transporting liquid cargo to the cabin.

6. The integrated structure of the gas gathering platform and deckhouse on an LNG bunkering transport vessel according to claim 4, characterized in that, The support reinforcement (6) is positioned so that it is aligned with the ribs of the ship.

7. The integrated structure of the gas gathering platform and deckhouse on an LNG bunkering transport vessel according to claim 1, characterized in that, The top edge of the deckhouse (1) is provided with a water-blocking plate (7) that connects with the surrounding plate (3).

8. The integrated structure of the gas gathering platform and deckhouse on an LNG bunkering transport vessel according to claim 1, characterized in that, The top plate of the deckhouse (1) is reinforced with a structure.

9. An integrated design method for a gas gathering platform and deckhouse on an LNG bunkering transport vessel, characterized in that, Specifically, the following steps are included: S1. Calculate the temperature cloud map of the gas collection platform liquid collection tank and deckhouse based on the temperature field, and select the steel grade based on the temperature cloud map of the gas collection platform liquid collection tank and deckhouse. S2, Based on the area occupied by the pipeline originally to be arranged on the gas collection platform and the area of ​​the top plate of the deckhouse (1), determine whether it is necessary to set up cantilever platforms (5) at both ends of the roof of the deckhouse (1); If the top plate area of ​​the deckhouse (1) is not less than the area occupied by the pipelines that originally needed to be arranged on the gas collection platform, then proceed to step S3. If the top plate area of ​​the deckhouse (1) is smaller than the area occupied by the pipeline that originally needed to be arranged on the gas collection platform, then proceed to step S4. S3, directly fix multiple enclosure panels (3) vertically on the top plate of the deckhouse (1) to form a closed area, so that the top plate of the deckhouse (1) serves as the bottom plate (4) of the original gas collection platform liquid collection tank that was originally set independently in other locations on the main deck, and the enclosure panels (3) serve as the side panels of the original gas collection platform liquid collection tank. All pipelines that were originally to be placed on the gas collection platform are fixed to the top of the deckhouse (1) by means of the support base (9) and the parts that are prone to leakage are located above the enclosed area enclosed by the enclosure (3); S4, set up cantilever platforms (5) at both ends of the roof of the deckhouse (1), and vertically fix multiple enclosure panels (3) on the top plates of the cantilever platforms (5) and the deckhouse (1) to form a closed area, so that the top plates of the cantilever platforms (5) and the deckhouse (1) together serve as the bottom plate (4) of the original gas collection platform liquid collection tank that was originally set independently at other locations on the main deck, and the enclosure panels (3) serve as the side panels of the original gas collection platform liquid collection tank. The first pipeline (8) that was originally to be placed on the gas collection platform is fixed to the top of the cantilever platform (5) and the deckhouse (1) by means of the support seat (9) and its easily leaking part is located above the closed area enclosed by the enclosure (3). The second pipeline (10) that was originally to be placed on the gas collection platform is fixed to the bottom of the cantilever platform (5) by means of the pipe bracket, and the space under the cantilever platform (5) is used as a passageway (11). S5, a reinforcing structure is provided on the reverse side of the top plate of the deckhouse (1).

10. The integrated design method for the gas gathering platform and deckhouse on an LNG bunkering transport vessel according to claim 1, characterized in that, If the area of ​​the top plate of the deckhouse (1) is not less than the area occupied by the pipeline that originally needs to be arranged on the gas collection platform, the enclosed area formed by the multiple partition plates (3) on the top plate of the deckhouse (1) shall be made of 304L or 316L stainless steel, and the other areas on the top plate of the deckhouse (1) shall be made of ordinary steel. If the area of ​​the top plate of the deckhouse (1) is smaller than the area occupied by the pipeline that originally needs to be arranged on the gas collection platform, the enclosed area formed by the multiple partitions (3) on the top plate of the cantilever platform (5) and the deckhouse (1) shall be made of 304L or 316L stainless steel, and the other areas on the top plate of the deckhouse (1) shall be made of ordinary steel.

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