Mounting tool and method for LNG ship liquid cargo tank broadside process hole sections

Abstract

The invention relates to a mounting tool and method for LNG ship liquid cargo tank broadside process hole sections, and the mounting tool for the LNG ship liquid cargo tank broadside process hole sections is used for mounting the broadside process hole sections in the broadside process holes of an LNG ship liquid cargo tank through a crane. The installation tool comprises a connecting piece and a hanging ring, and the hanging ring is arranged on the connecting piece. The connecting piece is used for being transversely connected with the broadside process hole segment, and the lifting ring is used for being connected with a steel wire rope of the crane. And when the crane is used for hoisting, the connecting piece and the broadside process hole are kept balanced in a segmented manner. According to the method, the installation efficiency and safety of the LNG ship liquid cargo tank broadside process hole sections can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of shipbuilding, and in particular to an installation tool and method for segmented process holes on the side of a liquid cargo tank of an LNG ship. Background Art

[0002] At present, the commonly used method for installing the side process holes of LNG tanks in sections is to directly lift the side process holes in sections. When the installation height is reached, the crane wire rope will collide and interfere with the hull outer shell plate. At this time, a manual chain hoist is used to slowly pull the sections horizontally into the installation position. This method has certain construction risks and low installation efficiency. Summary of the invention

[0003] (1) Technical issues to be solved

[0004] The present application provides a tool and method for installing segmented process holes on the side of a liquid cargo tank of an LNG ship, which solves the problem that the installation efficiency of segmented process holes on the side of a liquid cargo tank of an LNG ship is low and has certain construction risks.

[0005] (2) Technical solution

[0006] In the first aspect, the present application provides an installation tool for the side process hole segment of the liquid cargo tank of an LNG ship, which is used to install the side process hole segment on the side process hole of the liquid cargo tank of an LNG ship by a crane, and the installation tool includes a connecting piece and a lifting ring, and the lifting ring is arranged on the connecting piece; the connecting piece is used to be laterally connected to the side process hole segment, and the lifting ring is used to be connected to the steel wire rope of the crane.

[0007] Furthermore, when the crane is lifting, the connecting piece and the side process hole are kept balanced in sections.

[0008] Furthermore, the connecting member includes a connecting rod arm and a counterweight block; the connecting rod arm is transversely connected to the side process hole in sections, and the counterweight block is transversely connected to the connecting rod arm.

[0009] Furthermore, the lifting ring is arranged on the connecting rod arm.

[0010] Furthermore, the connecting rod arm is transversely connected to the outer shell plate of the side process hole segment.

[0011] Furthermore, the lifting ring is arranged at the midpoint of the connecting rod arm.

[0012] Further, the counterweight is a water tank with a water inlet and a remote-controlled drain valve;

[0013] Before the crane is lifted, water having the same weight as the side process hole segment is injected into the water tank, so that when the crane is lifted, the connecting piece and the side process hole segment are kept balanced;

[0014] After the side process hole segment is installed at the side process hole of the liquid cargo tank of the LNG ship, the water in the water tank is drained and the connection between the connecting piece and the side process hole segment is disconnected.

[0015] In a second aspect, the present application provides a method for installing a segmented process hole on the side of a liquid cargo tank of an LNG ship, which is implemented based on the installation tool; the installation method comprises:

[0016] Connect the connecting pieces of the installation tooling to the side process holes in sections and transversely;

[0017] Connecting the lifting ring of the installation tool to the wire rope of the crane, so that the crane can lift the side process hole segment;

[0018] After the crane hoists the side process hole segment to the installation height, the side process hole segment is horizontally moved and embedded into the installation position.

[0019] Furthermore, before the connecting piece of the installation tool is transversely connected to the side process hole in sections, it also includes:

[0020] Water having the same weight as that of the side process hole segment is injected into the water tank of the installation tool, so that the connecting piece and the side process hole segment are kept balanced when the crane is lifting.

[0021] Furthermore, after the side process holes are horizontally moved in sections and embedded into the installation position, the method further includes:

[0022] The water in the water tank of the installation tool is drained, and the connection between the connecting piece and the side process hole segment is disconnected.

[0023] (3) Beneficial effects

[0024] The above technical solution of the present application has the following advantages:

[0025] The first aspect of the present application provides an installation tool for the side process hole segment of the LNG ship's liquid cargo tank. By transversely connecting the connecting piece with the side process hole segment, a lifting ring is set on the connecting piece. When the side process hole segment is installed on the side process hole of the LNG ship's liquid cargo tank by a crane, collision and interference between the crane wire rope and the hull outer shell plate can be avoided. There is no need to manually use a hand chain hoist to drag on the inside of the side process hole. The installation method is simple, the installation efficiency is high, the safety is high, and it is easy to operate and implement.

[0026] 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

[0027] 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.

[0028] Figure 1 Schematic diagram of the installation tooling for the segmented process holes on the side of the liquid cargo tank of the LNG carrier provided for this application;

[0029] Figure 2 This is a schematic diagram of the commonly used lifting methods for lifting the side process hole sections;

[0030] Figure 3 Schematic diagram of the segmented installation of the process holes on the side of the LNG tank provided for this application;

[0031] Figure 4 Schematic diagram of the segmented installation of the side process holes of the liquid cargo tank of the LNG carrier provided for this application.

[0032] Figure numerals: 1. Connecting piece; 11. Link arm; 12. Counterweight; 121. Water inlet; 122. Remote control drain valve; 2. Lifting ring; 3. Side process hole segment; 4. Crane; 41. Wire rope. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] The present application provides a tool and method for the segmented installation of the side process holes of the liquid cargo tank of an LNG ship, the purpose of which is to improve the efficiency of the segmented installation of the side process holes and reduce the construction risk. It is suitable for the construction of liquid cargo tanks of LNG transport ships, LNG fuel tanks of other ships, and land LNG storage tanks.

[0038] 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.

[0039] The present application provides a LNG ship liquid cargo tank side process hole segment installation tool, which is used to install the side process hole segment on the side process hole of the LNG ship liquid cargo tank by a crane. Figure 1 As shown, the installation tooling includes a connector 1 and a lifting ring 2, and the lifting ring 2 is arranged on the connector 1; the connector 1 is used to be laterally connected to the side process hole segment 3, and the lifting ring 2 is used to be connected to the wire rope 41 of the crane 4.

[0040] In some embodiments, when the crane 4 is lifting, the connecting piece 1 and the side process hole segment 3 maintain balance.

[0041] In some embodiments, the connecting member 1 includes a connecting rod arm 11 and a counterweight block 12; the connecting rod arm 11 is transversely connected to the side process hole segment 3, and the counterweight block 12 is transversely connected to the connecting rod arm 11.

[0042] In some embodiments, the lifting ring 2 is disposed on the connecting rod arm 11 .

[0043] In some embodiments, the link arm 11 is transversely connected to the outer shell plate of the side process hole segment 3.

[0044] In some embodiments, the lifting ring 2 is disposed at the midpoint of the connecting rod arm 11 .

[0045] In some embodiments, the counterweight block 12 is a water tank with a water injection port 121 and a remote control drain valve 122; before the crane 4 lifts, water of the same weight as the side process hole segment 3 is injected into the water tank so that when the crane 4 lifts, the connecting piece 1 and the side process hole segment 3 remain balanced; after the side process hole segment 3 is installed in the side process hole of the liquid cargo tank of the LNG ship, the water in the water tank is drained and the connecting piece 1 is disconnected from the side process hole segment 3.

[0046] The embodiment of the present application also provides a method for installing the segmented process holes on the side of the liquid cargo tank of an LNG ship, which is implemented based on the installation tool; the installation method comprises:

[0047] Connect the connecting pieces of the installation tooling to the side process holes in sections and transversely;

[0048] Connecting the lifting ring of the installation tool to the wire rope of the crane, so that the crane can lift the side process hole segment;

[0049] After the crane hoists the side process hole segment to the installation height, the side process hole segment is horizontally moved and embedded into the installation position.

[0050] In some embodiments, before the connecting piece of the installation tool is transversely connected to the side process hole segment, it also includes: injecting water of the same weight as the side process hole segment into the water tank of the installation tool, so that the connecting piece and the side process hole segment remain balanced when the crane is lifting.

[0051] In some embodiments, after horizontally shifting the side process hole segment and embedding it into the installation position, it also includes: draining the water in the water tank of the installation tooling and disconnecting the connection between the connecting piece and the side process hole segment.

[0052] In application, before the crane is lifted, water of the same weight as the side process hole segment can be injected into the water tank through the water injection port, and the counterweight of the same weight as the side segment can be installed on the outer shell plate of the side segment through the connecting rod arm, and the lifting weight can be set at the midpoint of the connecting rod arm, so that when the crane is lifted, the connecting piece and the side process hole segment can be kept balanced. After the side segment is lifted to the installation height, the height of the side process hole segment is maintained, and it is horizontally moved and embedded into the installation position, and then the water in the water tank is drained through the remote control drain valve, and the connection between the connecting piece and the side process hole segment is disconnected.

[0053] The installation method of the present application is simple, efficient, safe, and easy to implement, which can shorten the construction period of LNG ships. It can be used in construction scenarios including but not limited to LNG transport ships, LNG fuel tanks, and LNG land storage tanks.

[0054] like Figure 2 As shown, it is a schematic diagram of the side process hole segment that cannot be installed in place when currently commonly used lifting methods are used. During installation, the crane 4 needs to lift the side process hole segment 3 to the height of the side process hole, and then move it horizontally and embed it to complete the installation. The traditional commonly used lifting method will cause the crane wire rope 41 and the hull outer shell plate to collide and interfere when moving horizontally, and the side process hole segment 3 cannot be directly moved horizontally into place. It is also necessary to use a manual chain hoist to drag it on the inside of the side process hole to achieve installation in place. It is difficult for personnel to operate, the installation efficiency is low, and there are safety risks.

[0055] The embodiment of the present application provides a sectional installation tool and method for the process hole on the side of the LNG ship liquid cargo tank, such as Figure 1 As shown, a counterweight block 12 having the same weight as the side process hole segment 3 is installed on the connecting rod arm 11, and a lifting ring 2 is installed on the upper surface of the center position of the connecting rod arm 11. Figure 3 and Figure 4 As shown, first connect the connector 1 of the installation tooling to the outer shell plate of the side process hole segment 3, then anchor the wire rope 41 of the crane 4 to the lifting ring 2, lift and transversely move the side process hole segment 3 so that it is completely embedded in the side process hole and installed in place.

[0056] The installation tool and method of the segmented side process hole of the liquid cargo tank of the LNG ship provided in the embodiment of the present application have a simple installation method and high installation efficiency, which can shorten the construction period of the LNG ship. When the side process hole segment is installed on the side process hole of the liquid cargo tank of the LNG ship by a crane, collision and interference between the crane wire rope and the hull outer shell plate can be avoided, and there is no need to manually use a hand chain hoist to drag on the inside of the side process hole, which is highly safe and easy to operate.

[0057] 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.

[0058] 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.

[0059] 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 installation tool for the segmented side process hole of a LNG ship liquid cargo tank, used to install the segmented side process hole on the side process hole of the LNG ship liquid cargo tank by a crane, characterized in that: The installation tooling includes a connecting piece and a lifting ring, wherein the lifting ring is arranged on the connecting piece; the connecting piece is used for being laterally connected with the side process hole in sections, and the lifting ring is used for being connected with the steel wire rope of the crane.

2. The installation tool for the segmented process hole on the side of the liquid cargo tank of the LNG ship according to claim 1 is characterized in that: When the crane is lifting, the connecting piece and the side process hole are kept balanced in sections.

3. The installation tool for the segmented process hole on the side of the liquid cargo tank of the LNG ship according to claim 1 is characterized in that: The connecting member includes a connecting rod arm and a counterweight block; the connecting rod arm is transversely connected to the side process hole in sections, and the counterweight block is transversely connected to the connecting rod arm.

4. The installation tool for the segmented process hole on the side of the liquid cargo tank of the LNG ship according to claim 3 is characterized in that: The lifting ring is arranged on the connecting rod arm.

5. The installation tool for the segmented process hole on the side of the liquid cargo tank of the LNG ship as claimed in claim 3 is characterized in that: The connecting rod arm is transversely connected to the outer shell plate of the side process hole segment.

6. The installation tool for the segmented process hole on the side of the liquid cargo tank of the LNG ship according to claim 4 is characterized in that: The lifting ring is arranged at the midpoint of the connecting rod arm.

7. The installation tool for the segmented process hole on the side of the liquid cargo tank of the LNG ship according to claim 6 is characterized in that: The counterweight is a water tank with a water inlet and a remote-controlled drain valve; Before the crane is lifted, water having the same weight as the side process hole segment is injected into the water tank, so that when the crane is lifted, the connecting piece and the side process hole segment are kept balanced; After the side process hole segment is installed at the side process hole of the liquid cargo tank of the LNG ship, the water in the water tank is drained and the connection between the connecting piece and the side process hole segment is disconnected.

8. A method for installing the segmented process holes on the side of the cargo tank of an LNG ship, characterized in that: Based on the installation tool according to any one of claims 1 to 7; the installation method comprises: Connect the connecting pieces of the installation tooling to the side process holes in sections and transversely; Connecting the lifting ring of the installation tool to the wire rope of the crane, so that the crane can lift the side process hole segment; After the crane hoists the side process hole segment to the installation height, the side process hole segment is horizontally moved and embedded into the installation position.

9. The method for installing the segmented process holes on the side of the liquid cargo tank of an LNG ship according to claim 8, characterized in that: Before the connecting piece of the installation tool is transversely connected to the side process hole in sections, the method further includes: Water having the same weight as that of the side process hole segment is injected into the water tank of the installation tool, so that the connecting piece and the side process hole segment are kept balanced when the crane is lifting.

10. The method for installing the segmented process holes on the side of the liquid cargo tank of an LNG ship according to claim 9, characterized in that: After the side process holes are horizontally moved in sections and embedded into the installation positions, the method further includes: The water in the water tank of the installation tool is drained, and the connection between the connecting piece and the side process hole segment is disconnected.

Images