Liquefied natural gas (LNG) storage tank sealing device transportation and auxiliary installation device

Abstract

The utility model discloses an LNG storage tank sealing device transportation and auxiliary installation device which is arranged at the bottom of a vault and comprises at least one construction monorail, at least two monorail trolleys and a construction platform, the construction monorail is connected to the bottom of the vault in the circumferential direction of the vault, the two monorail trolleys are installed on the construction monorail in a sliding mode, and the construction platform is arranged on the construction monorail. The construction platform is located below the two monorail trolleys, the two monorail trolleys are located on the two sides of the construction platform respectively in the length direction of the construction platform, and the construction platform is connected with each monorail trolley in a hanging mode through a connecting structure. According to the utility model, the installation is convenient and fast, the installation efficiency is improved, the labor intensity of workers is effectively reduced, and the installation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete full-capacity LNG storage tanks, and in particular to a LNG storage tank sealing device transportation and auxiliary installation device. Background Art

[0002] In a chemical natural gas concrete full-containment LNG storage tank, the tank structure is a vertical cylindrical structure consisting of an outer tank and an inner tank. The outer tank is a reinforced concrete structure consisting of a base, walls, and dome. A spherical steel structure is attached to the lower surface of the dome, forming a spherical crown, called the vault. During the vault installation, external pressure equipment is used to pressurize the sealed space formed by the vault structure, the concrete outer wall, and the base (a sealed space is formed using a sealing system), thereby creating a pressure differential between the enclosed space and the external space. The vault structure uses this pressure differential to move, rising from the bottom to the top, and then contacting the steel pressure ring embedded in the top of the outer tank wall. It is then welded to the pressure ring. Therefore, to ensure the sealing effect between the edge of the vault and the concrete outer wall, a sealing device is required around the edge of the vault.

[0003] The existing method for installing the sealing device is to install it manually when the arch is at the bottom. Since there is still a certain height between the arch and the bottom at this time, workers are required to use a ladder to carry the raw materials of the sealing device to climb to a predetermined height to install the sealing device. Since the installation positions are distributed along the circumference of the arch, workers are required to repeatedly move the manual ladder along the circumference during the installation process, which not only has low safety, but also greatly increases manual labor intensity and reduces installation efficiency. Summary of the Invention

[0004] In view of the above problems existing in the installation of existing sealing devices, the present invention aims to provide a LNG tank sealing device transportation and auxiliary installation device with high safety, low labor cost and high efficiency.

[0005] The specific technical solutions are as follows:

[0006] An LNG tank sealing device transportation and auxiliary installation device, located at the bottom of the arch, includes:

[0007] at least one construction monorail, the construction monorail being connected to the bottom of the arch along the circumference of the arch;

[0008] At least two monorail trolleys, the two monorail trolleys being slidably mounted on the construction monorail;

[0009] A construction platform is located below the two monorail trolleys, and the two monorail trolleys are respectively located on both sides of the construction platform along the length direction of the construction platform, and the construction platform and each monorail trolley are hoisted by a connecting structure.

[0010] Further, as a preferred embodiment, the monorail trolley is provided with a lifting ring, and the construction platform is connected with the lifting ring through the connecting structure.

[0011] Further, as a preferred embodiment, the connecting structure comprises:

[0012] a connecting column, which is longitudinally arranged and has a bottom connected with the construction platform;

[0013] a lifting lug, which is connected to the top of the connecting column;

[0014] a shackle, which is connected between the lifting lug and the lifting ring.

[0015] Further, as a preferred embodiment, the lifting lug is provided with a lifting hole, and the shackle is connected between the lifting hole and the lifting ring.

[0016] Further, as a preferred embodiment, the lifting lug is welded with the connecting column.

[0017] Further, as a preferred embodiment, the connecting column is welded with the construction platform.

[0018] Further, as a preferred embodiment, the construction platform comprises a support frame and a steel scaffold plank laid on the support frame, and the connecting column is welded with the support frame.

[0019] Further, as a preferred embodiment, the construction platform is provided with a guardrail on both sides.

[0020] Further, as a preferred embodiment, the construction monorail has two and is distributed along the radial direction of the vault, and two monorail trolleys are slidingly installed on each construction monorail, and four monorail trolleys in the two construction monorails are connected with four corner positions on the top of the construction platform, respectively.

[0021] The above technical solution has the following advantages compared with the prior art:

[0022] In the utility model, the construction platform can be hoisted by the connecting structure and the monorail trolley, and hoisted to the required installation height. The raw materials of the sealing device are placed on the construction platform. The construction platform slides along the circumferential direction of the vault through the monorail trolley. Workers can install the sealing device along the circumferential direction on the bottom edge of the vault on the construction platform. The utility model not only has the advantages of convenient and fast installation, improved installation efficiency, but also effectively reduces the labor intensity and improves the installation safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1This is a structural diagram of an existing concrete full-containment LNG storage tank;

[0024] Figure 2 This is a structural diagram of a LNG storage tank sealing device transportation and auxiliary installation device of the utility model;

[0025] In the attached figure: 1. Construction monorail; 2. Monorail trolley; 3. Construction platform; 4. Connection structure; 21. Lifting ring; 31. Support frame; 32. Scaffolding steel pedal; 33. Guardrail; 41. Shackle; 42. Lifting lug; 43. Connecting column. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] Figure 1 This is a structural diagram of an existing concrete full-containment LNG storage tank. Figure 2 This is a schematic diagram of the structure of a LNG tank sealing device transportation and auxiliary installation device of the utility model, such as Figures 1-2As shown, a preferred embodiment of an LNG tank sealing device transportation and auxiliary installation device is shown, which is arranged at the bottom of the arch, including: at least one construction monorail 1, at least two monorail trolleys 2 and a construction platform 3. The construction monorail 1 is connected to the bottom of the arch along the circumference of the arch, and the two monorail trolleys 2 are slidably installed on the construction monorail 1. The construction platform 3 is located below the two monorail trolleys 2, and the two monorail trolleys 2 are respectively located on both sides of the construction platform 3 along the length direction of the construction platform 3, and the construction platform 3 and each monorail trolley 2 are suspended by a connecting structure 4.

[0030] In this embodiment, the construction platform 3 can be hoisted with the monorail trolley 2 through the connecting structure 4 and hoisted to the required installation height. The raw materials of the sealing device are placed on the construction platform 3. The construction platform 3 slides along the circumference of the arch through the monorail trolley 2. Workers can install the sealing device circumferentially on the bottom edge of the arch on the construction platform 3. This is not only convenient and quick to install, and improves installation efficiency, but also effectively reduces manual labor intensity and improves installation safety.

[0031] More preferably, the monorail trolley 2 is an existing conventional equipment, which is a bracelet-type hand-pulled monorail trolley 2, and the construction monorail 1 is an "I"-shaped guide rail. The pulley on the monorail trolley 2 is in sliding cooperation with the construction monorail 1.

[0032] Furthermore, as a preferred embodiment, the monorail trolley 2 has a lifting ring 21 , and the construction platform 3 is connected to the lifting ring 21 through a connecting structure 4 .

[0033] Furthermore, as a preferred embodiment, the connecting structure 4 includes a connecting column 43, a lifting ear 42 and a shackle 41. The connecting column 43 is arranged longitudinally, and the bottom of the connecting column 43 is connected to the construction platform 3. The lifting ear 42 is connected to the top of the connecting column 43, and the shackle 41 is connected between the lifting ear 42 and the lifting ring 21.

[0034] Furthermore, as a preferred embodiment, the lifting ear 42 has a lifting hole, and the shackle 41 is connected between the lifting hole and the lifting ring 21 .

[0035] Furthermore, as a preferred embodiment, in order to improve the connection strength between the lifting ear 42 and the connecting column 43 , the lifting ear 42 and the connecting column 43 are welded.

[0036] Furthermore, as a preferred embodiment, in order to improve the connection strength between the connecting column 43 and the construction platform 3 , the connecting column 43 and the construction platform 3 are welded.

[0037] Furthermore, as a preferred embodiment, the construction platform 3 includes a support frame 31 and a scaffolding steel pedal 32 laid on the support frame 31 , and the connecting column 43 is welded to the support frame 31 .

[0038] Further, as a preferred embodiment, in order to improve the safety of workers during installation, the construction platform 3 is provided with guardrails 33 on both sides.

[0039] Further, as a preferred embodiment, in order to improve the stability of the hoisting of the construction platform 3, the construction monorail 1 has two and is distributed along the radial direction of the vault, and two monorail trolleys 2 are slidingly installed on each construction monorail 1, and the four monorail trolleys 2 in the two construction monorails 1 are respectively connected with the four corner positions on the top of the construction platform 3.

[0040] The above only describes the preferred embodiments of the present application, and does not limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious changes made by applying the content of the present application description and drawings should be included in the protection scope of the present application.

Claims

1. A LNG tank sealing device transportation and auxiliary installation device, located at the bottom of the arch, characterized in that: include: at least one construction monorail, the construction monorail being connected to the bottom of the arch along the circumference of the arch; At least two monorail trolleys, the two monorail trolleys being slidably mounted on the construction monorail; A construction platform is located below the two monorail trolleys, and the two monorail trolleys are respectively located on both sides of the construction platform along the length direction of the construction platform, and the construction platform and each monorail trolley are hoisted by a connecting structure.

2. The LNG tank sealing device transportation and auxiliary installation device according to claim 1 is characterized in that: The monorail trolley is provided with a lifting ring, and the construction platform is connected to the lifting ring through the connecting structure.

3. The LNG tank sealing device transportation and auxiliary installation device according to claim 2 is characterized in that: The connection structure includes: A connecting column, wherein the connecting column is arranged longitudinally and the bottom of the connecting column is connected to the construction platform; a lifting lug connected to the top of the connecting column; A shackle is connected between the lifting ear and the lifting ring.

4. The LNG tank sealing device transportation and auxiliary installation device according to claim 3 is characterized in that: The lifting ear is provided with a lifting hole, and the shackle is connected between the lifting hole and the lifting ring.

5. The LNG tank sealing device transportation and auxiliary installation device according to claim 3 is characterized in that: The lifting lug is welded to the connecting column.

6. The LNG tank sealing device transportation and auxiliary installation device according to claim 3 is characterized in that: The connecting column is welded to the construction platform.

7. The LNG tank sealing device transportation and auxiliary installation device according to claim 6 is characterized in that: The construction platform includes a support frame and a scaffolding steel pedal laid on the support frame, and the connecting column is welded to the support frame.

8. The LNG tank sealing device transportation and auxiliary installation device according to claim 1 is characterized in that: Guardrails are provided on both sides of the construction platform.

9. The LNG tank sealing device transportation and auxiliary installation device according to claim 1 is characterized in that: There are two construction monorails, which are distributed radially along the arch, and two monorail trolleys are slidably installed on each construction monorail. The four monorail trolleys in the two construction monorails are respectively connected to the four corners of the top of the construction platform.

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