LNG ship pump tower and arrangement method

Abstract

The invention relates to an LNG ship pump tower and an arrangement method, the LNG ship pump tower comprises a plurality of pump tower pipe systems and structural supports, all the pump tower pipe systems are located on the same plane, and every two adjacent pump tower pipe systems are connected through the corresponding structural supports; the pump tower pipe system is used for forming a main body structure of the LNG ship pump tower, and the structural support is used for supporting the main body structure of the LNG ship pump tower; and the LNG ship pump tower is arranged in the adjacent bulkhead block behind the LNG liquid cargo tank. According to the method, the pump tower installation work can be separated from the liquid cargo tank containment system construction work, the pump tower installation work and the accessory installation work thereof can be moved forwards to the bulkhead block stage, and the construction period of an LNG ship can be shortened.

Description

Technical Field

[0001] The present application relates to the technical field of shipbuilding, and in particular to an LNG ship pump tower and a layout method thereof. Background Art

[0002] At present, the most common LNG carriers are designed to have the pump tower arranged inside the LNG liquid cargo tank. The pump tower and its outfitting parts can only be installed after the construction of the liquid cargo tank containment system is completed, which makes it difficult to control the construction period. Summary of the invention

[0003] (1) Technical issues to be solved

[0004] The present application provides an LNG ship pump tower and layout method, which solves the problem that the pump tower and its outfitting parts must be installed only after the construction of the liquid cargo tank containment system is completed, and the construction period is difficult to control.

[0005] (2) Technical solution

[0006] In the first aspect, the present application provides an LNG ship pump tower, comprising a plurality of pump tower pipe systems and structural supports, wherein all of the pump tower pipe systems are located in the same plane, and two adjacent pump tower pipe systems are connected via corresponding structural supports; the pump tower pipe systems are used to constitute the main structure of the LNG ship pump tower, and the structural supports are used to support the main structure of the LNG ship pump tower; the LNG ship pump tower is arranged in an adjacent compartment section behind the LNG liquid cargo tank.

[0007] Furthermore, the pump tower piping system includes a first liquid cargo pipe and an emergency pipe, and the emergency pipe and the first liquid cargo pipe are connected via the structural support.

[0008] Furthermore, the pump tower piping system also includes an injection pipe, and the injection pipe and the emergency pipe are connected via the structural support.

[0009] Furthermore, the pump tower piping system also includes a second liquid cargo pipe, and the second liquid cargo pipe and the injection pipe are connected via the structural support.

[0010] Furthermore, the pump tower piping system also includes a tank stripping pipe, and the tank stripping pipe and the second liquid cargo pipe are connected via the structural support.

[0011] Furthermore, it also includes a connecting elbow, through which the LNG ship pump tower is connected to the bottom of the LNG liquid cargo tank.

[0012] In a second aspect, the present application provides a method for arranging the above-mentioned LNG ship pump tower, comprising:

[0013] The LNG ship pump tower is constructed by using multiple pump tower pipe systems and structural supports to obtain a planar LNG ship pump tower;

[0014] The planar LNG ship pump tower is arranged in the adjacent compartment section behind the LNG liquid cargo tank.

[0015] Furthermore, it also includes:

[0016] The planar LNG ship pump tower and the bottom of the LNG liquid cargo tank are connected and penetrated through a connecting elbow.

[0017] (3) Beneficial effects

[0018] The above technical solution of the present application has the following advantages:

[0019] The LNG ship pump tower provided in the first aspect of the present application can minimize the length of the pump tower structure in the ship length direction by arranging the pump tower pipe system in a single row plane and installing a structural support in the middle, so as to be arranged inside the bulkhead. The pump tower is arranged in the bulkhead section adjacent to the rear of the LNG liquid cargo tank, so that the installation of the pump tower can be separated from the construction of the liquid cargo tank containment system, and the installation of the pump tower and its accessories can be moved forward to the bulkhead section stage, which can shorten the construction period of the LNG ship.

[0020] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A top view of the LNG ship pump tower provided for this application;

[0023] Figure 2 Front view of the LNG ship pump tower provided for this application;

[0024] Figure 3 Layout diagram of the LNG ship pump tower provided for this application.

[0025] Figure numerals: 1. Pump tower piping system; 11. First liquid cargo pipe; 12. Emergency pipe; 13. Injection pipe; 14. Second liquid cargo pipe; 15. Tank sweeping pipe; 2. Structural support; 3. LNG liquid cargo tank; 4. Bulkhead section; 5. Connecting elbow. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0030] The present application provides an LNG ship pump tower and arrangement method, the purpose of which is to arrange the pump tower pipe system in parallel and in a planar manner, and pre-install it in the adjacent bulkhead section behind the LNG ship liquid cargo tank in advance, connect the LNG liquid cargo tank and the pump tower pipe system through the bottom opening of the liquid cargo tank, complete the pump tower accessory outfitting work in advance, and shorten the LNG ship construction period. The present application is applicable to the liquid cargo tank of LNG transport ships, the LNG fuel tanks of other ships, and land LNG storage tanks, etc.

[0031] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0032] The present application embodiment provides a LNG ship pump tower, such as Figure 1 As shown, it includes multiple pump tower pipe systems 1 and structural supports 2, all of the pump tower pipe systems 1 are located in the same plane, and two adjacent pump tower pipe systems 1 are connected through the corresponding structural supports 2; the pump tower pipe system 1 is used to constitute the main structure of the LNG ship pump tower, and the structural support 2 is used to support the main structure of the LNG ship pump tower; the LNG ship pump tower is arranged in the adjacent compartment section 4 behind the LNG liquid cargo tank 3.

[0033] In some embodiments, the pump tower piping system 1 includes a first liquid cargo pipe 11 and an emergency pipe 12 , and the emergency pipe 12 is connected to the first liquid cargo pipe 11 via the structural support 2 .

[0034] In some embodiments, the pump tower piping system 1 further includes an injection pipe 13 , and the injection pipe 13 and the emergency pipe 12 are connected via the structural support 2 .

[0035] In some embodiments, the pump tower piping system 1 further includes a second liquid cargo pipe 14 , and the second liquid cargo pipe 14 is connected to the injection pipe 13 via the structural support 2 .

[0036] In some embodiments, the pump tower piping system 1 further includes a tank stripping pipe 15 , and the tank stripping pipe 15 and the second liquid cargo pipe 14 are connected via the structural support 2 .

[0037] In some embodiments, a connecting elbow 5 is further included, and the LNG ship pump tower is connected to the bottom of the LNG liquid cargo tank 3 through the connecting elbow 5.

[0038] In application, the pump tower pipe system can be arranged side by side in a planar manner, and the pump tower can be arranged in the adjacent bulkhead behind the liquid cargo tank of the LNG carrier and the pipe system can be passed through the bottom of the liquid cargo tank.

[0039] The parallel planar arrangement of the pump tower piping means arranging the pump tower piping into a single row and installing a structural support in the middle; the pump tower is arranged in the adjacent bulkhead section behind the LNG carrier's liquid cargo tank, which means installing the flat pump tower in the bulkhead of the LNG carrier; the pipe system is connected through the bottom of the liquid cargo tank by opening a hole in the bottom of the liquid cargo tank and connecting the pump tower piping to the LNG liquid cargo tank.

[0040] A flattened pump tower in which the piping is arranged in a single row and a structural support is installed in the middle can minimize the length of the pump tower structure in the direction of the ship's length. The pump tower structural support is arranged between the piping.

[0041] The pump tower is arranged in the bulk section adjacent to the rear of the LNG carrier's liquid cargo tank, which effectively avoids interference between the pump tower installation and the construction of the liquid cargo tank containment system. The pump tower work can be moved forward to the bulk section stage, which is conducive to shortening the construction period.

[0042] The bottom of the liquid cargo tank is opened with a hole to connect the pump tower piping system and the liquid cargo tank, which means that a corresponding hole is reserved at the bottom of the liquid cargo tank near the bulkhead to connect the pump tower piping system to the LNG liquid cargo tank.

[0043] like Figure 1 and Figure 2 As shown, the parallel planar arrangement of the pump tower piping system includes a pump tower piping system 1 and a structural support 2. After the two are installed and matched, a planar arrangement pump tower can be formed. The width is greatly reduced compared with a conventional pump tower, and the size requirement for placement in a compartment can be met.

[0044] like Figure 3 As shown, the pump tower is arranged inside the LNG ship compartment 4 and is connected to the bottom of the LNG liquid cargo tank 3 via a connecting elbow 5 .

[0045] In this embodiment, there are a total of 5 pump tower pipes. The specific number of pipes can be adjusted according to functional requirements, and the size of the pump tower can be adjusted according to demand.

[0046] An embodiment of the present application also provides a method for installing the above-mentioned LNG ship pump tower, comprising: building an LNG ship pump tower by means of a plurality of pump tower pipes and structural supports to obtain a planar LNG ship pump tower; and arranging the planar LNG ship pump tower in an adjacent compartment section behind the LNG liquid cargo tank.

[0047] In some embodiments, it also includes: connecting the planar LNG ship pump tower and the bottom of the LNG liquid cargo tank through a connecting elbow.

[0048] The pump tower piping is arranged side by side in a plane to reduce the size of the pump tower in the ship length direction so that it can be arranged inside the bulkhead. The pump tower is arranged in the bulkhead section adjacent to the rear of the LNG cargo tank, so that the installation of the pump tower can be separated from the construction of the cargo tank containment system, and the installation of the pump tower and its accessories can be moved forward to the bulkhead section stage.

[0049] The bottom opening of the liquid cargo tank connects the LNG liquid cargo tank and the pump tower piping system. The bottom opening of the LNG liquid cargo tank can complete the cargo clearing and reduce the impact of liquid cargo entering the tank on the containment system to the greatest extent.

[0050] This application moves the installation of the pump tower and its accessories to the bulkhead stage, shortening the construction period of the LNG ship. The pump tower is installed in the bulkhead to avoid the impact of LNG liquid cargo sloshing, which is beneficial to the service life of the pump tower structure. The pump tower is installed in the bulkhead for easy maintenance and leakage monitoring.

[0051] The pump tower provided in the embodiment of the present application has a simple structure, is easy to process, and is arranged in a position that facilitates the forward movement of the pump tower installation work, which can shorten the construction period of the LNG ship. It can be used in devices containing pump tower components, including but not limited to LNG transport ships, LNG fuel tanks, LNG land storage tanks, etc.

[0052] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0053] It should be clear that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. For the embodiments of the method, the relevant parts can refer to the partial description of the device embodiment (adopted according to the writing situation). The present application is not limited to the specific steps and structures described above and shown in the figures. In addition, for the sake of simplicity, a detailed description of known method technologies is omitted here.

[0054] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An LNG ship pump tower, characterized in that: It comprises a plurality of pump tower pipe systems and structural supports, all of the pump tower pipe systems are located in the same plane, and two adjacent pump tower pipe systems are connected via corresponding structural supports; the pump tower pipe systems are used to constitute the main structure of the LNG ship pump tower, and the structural supports are used to support the main structure of the LNG ship pump tower; the LNG ship pump tower is arranged in a bulkhead section adjacent to the rear of the LNG liquid cargo tank.

2. The LNG ship pump tower according to claim 1, characterized in that: The pump tower piping system includes a first liquid cargo pipe and an emergency pipe, and the emergency pipe and the first liquid cargo pipe are connected via the structural support.

3. The LNG ship pump tower according to claim 2, characterized in that: The pump tower piping system also includes an injection pipe, and the injection pipe and the emergency pipe are connected via the structural support.

4. The LNG ship pump tower according to claim 3, characterized in that: The pump tower piping system further includes a second liquid cargo pipe, and the second liquid cargo pipe is connected to the injection pipe via the structural support.

5. The LNG ship pump tower according to claim 4, characterized in that: The pump tower piping system further includes a tank stripping pipe, and the tank stripping pipe and the second liquid cargo pipe are connected via the structural support.

6. The LNG ship pump tower according to claim 1, characterized in that: It also includes a connecting elbow, through which the LNG ship pump tower is connected to the bottom of the LNG liquid cargo tank.

7. A method for arranging a pump tower for an LNG ship according to any one of claims 1 to 6, characterized in that: include: The LNG ship pump tower is constructed by using multiple pump tower pipe systems and structural supports to obtain a planar LNG ship pump tower; The planar LNG ship pump tower is arranged in the adjacent compartment section behind the LNG liquid cargo tank.

8. The method for arranging a pump tower for an LNG ship according to claim 7, characterized in that: Also includes: The planar LNG ship pump tower and the bottom of the LNG liquid cargo tank are connected and penetrated through a connecting elbow.

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