An adiabatic support structure for a large-capacity LNG cryogenic storage tank

Abstract

The utility model relates to a kind of adiabatic support structure of large-capacity LNG cryogenic storage tank, belong to liquefied natural gas storage technical field, including tank body, the lower part of tank body is provided with support assembly;The support assembly includes heat-insulating bottom plate, the top of heat-insulating bottom plate is fixedly connected with support.The adiabatic support structure of large-capacity LNG cryogenic storage tank, support plate is stably supported by the cooperation of support and channel steel, the upper end of multiple support vertical boards in support plate and two support parts constitute arc support part, the arc support part formed by multiple support vertical boards and two support parts can stably support the bottom wall of tank body, improve the lateral structural strength of support vertical board under the setting of support inclined plate, while, the structural strength of support plate is improved under the setting of reinforcing plate, reinforcing block and reinforcing bar, and then the support stability of support part is improved, so that it stably supports tank body, improves support protection effect, and the overall transportation stability is strengthened.

Description

Technical Field

[0001] This utility model relates to the field of liquefied natural gas storage technology, specifically to an insulation support structure for a large-capacity LNG cryogenic storage tank. Background Technology

[0002] Natural gas refers to combustible gases found in underground strata, primarily a mixture of low-molecular-weight alkanes. It can be divided into dry natural gas and wet natural gas. Dry natural gas is mainly composed of methane, while wet natural gas, in addition to a large amount of methane, also contains significant amounts of ethane, propane, and butane. Liquefied natural gas (LNG), whose main component is methane, is widely recognized as the cleanest fossil fuel on Earth. It is colorless, odorless, non-toxic, and non-corrosive. Its volume is approximately 1 / 625th that of the same amount of gaseous natural gas, and its mass is only about 45% of the same volume of water. Its production process involves purifying natural gas produced from gas fields, followed by a series of cryogenic liquefaction processes, and then transporting it using LNG carriers. LNG combustion produces very little air pollution and releases a large amount of heat, making it a relatively advanced energy source. Due to the low critical temperature of methane, LNG is stored at low temperatures and atmospheric pressure, typically in cryogenic storage tanks at approximately -161.5 degrees Celsius and 0.1 MPa.

[0003] In order to ensure the stability of the tank during transportation, a support structure is required. The existing thermal insulation support structure of large-capacity LNG cryogenic storage tanks is relatively simple, and the support and protection effect of the storage tank is poor, and the stability of transportation needs to be improved. Therefore, a thermal insulation support structure for large-capacity LNG cryogenic storage tanks is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an insulation support structure for large-capacity LNG cryogenic storage tanks, which has advantages such as improved support and protection effects. It solves the problems that the existing insulation support structures for large-capacity LNG cryogenic storage tanks are relatively simple, have poor support and protection effects on the tanks, and require improvement in transportation stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an insulation support structure for a large-capacity LNG cryogenic storage tank, comprising a tank body, wherein a support assembly is provided at the lower part of the tank body;

[0006] The support assembly includes an insulated base plate, a bracket is fixedly connected to the top of the insulated base plate, a support plate is fixedly connected to the top of the bracket, two support parts are provided on the upper part of the support plate, a reinforcing plate is fixedly connected to the lower side of each of the two support parts, multiple support vertical plates are provided between the two reinforcing plates, a connecting plate is fixedly connected to the outer side of the support vertical plates and the reinforcing plates, and multiple support inclined plates are fixedly connected between the connecting plate and the bracket.

[0007] Furthermore, multiple channel steels are fixedly connected to the inner side of the bracket, and the multiple channel steels are equidistantly distributed along the inner side of the bracket.

[0008] Furthermore, the inner side of the channel steel is provided with heat-insulating foam, and the heat-insulating base plate is a vacuum heat-insulating plate.

[0009] Furthermore, four mounting blocks are fixedly connected to the outer side of the heat insulation base plate. The four mounting blocks are symmetrically distributed on both sides of the heat insulation base plate, and mounting holes are provided on the inner side of the mounting blocks.

[0010] Furthermore, reinforcing bars are provided on both symmetrical sides of the support plate, and the reinforcing bars are fixedly connected to the top of the bracket and abut against the side wall of the support plate.

[0011] Furthermore, a reinforcing block is fixedly connected between the reinforcing plate and the inner wall of the support plate.

[0012] Furthermore, the supporting vertical plate is fixedly connected to the inner side of the supporting plate, and the upper ends of the multiple supporting vertical plates and the two supporting parts form an arc-shaped supporting part.

[0013] Compared with the prior art, this utility model provides an insulation support structure for a large-capacity LNG cryogenic storage tank, which has the following beneficial effects:

[0014] The thermal insulation support structure of this large-capacity LNG cryogenic storage tank uses a combination of brackets and channel steel to stably support the support plate. Multiple vertical support plates within the support plate, together with two support sections, form an arc-shaped support section. This arc-shaped support section provides stable support to the bottom wall of the tank. The addition of inclined support plates enhances the lateral structural strength of the vertical support plates. Furthermore, the inclusion of reinforcing plates, blocks, and bars further strengthens the structural strength of the support plate, thereby improving the support stability of the support section and enhancing its protective effect on the tank. This results in improved overall transport stability and high practicality, addressing the issues of relatively simple thermal insulation support structures in existing large-capacity LNG cryogenic storage tanks, which offer poor support and protection and require further improvement in transport stability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the support component of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the support plate of this utility model;

[0018] Figure 4This is a schematic diagram of the channel steel structure of this utility model.

[0019] In the diagram: 1. Tank body; 2. Insulated base plate; 3. Bracket; 4. Support plate; 401. Support part; 5. Reinforcing plate; 6. Reinforcing block; 7. Supporting vertical plate; 8. Channel steel; 9. Thermal insulation foam; 10. Connecting plate; 11. Supporting inclined plate; 12. Reinforcing bar; 13. Mounting block; 14. Mounting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 The thermal insulation support structure of a large-capacity LNG cryogenic storage tank in this embodiment includes a tank body 1. A support assembly is provided at the lower part of the tank body 1. The support assembly includes an thermal insulation base plate 2, which is a vacuum insulation plate. A bracket 3 is fixedly connected to the top of the thermal insulation base plate 2. A support plate 4 is fixedly connected to the top of the bracket 3. Two support parts 401 are provided on the upper part of the support plate 4. A reinforcing plate 5 is fixedly connected to the lower side of each of the two support parts 401. Multiple support vertical plates 7 are provided between the two reinforcing plates 5. A connecting plate 10 is fixedly connected to the outer side of the support vertical plates 7 and the reinforcing plates 5. Multiple support inclined plates 11 are fixedly connected between the connecting plate 10 and the bracket 3. The supporting vertical plate 7 is fixedly connected to the inner side of the supporting plate 4. The upper ends of the multiple supporting vertical plates 7 and the two supporting parts 401 form an arc-shaped supporting part. The bottom of the tank body 1 is welded and fixed to the supporting parts 401 and the upper ends of the supporting vertical plates 7. The arc-shaped supporting part formed by the multiple supporting vertical plates 7 and the two supporting parts 401 can stably support the bottom wall of the tank body 1. The lateral structural strength of the supporting vertical plate 7 can be improved by the supporting inclined plate 11.

[0022] A reinforcing block 6 is fixedly connected between the reinforcing plate 5 and the inner wall of the support plate 4. The reinforcing block 6 improves the stability of the reinforcing plate 5, thereby enhancing the structural strength of the support plate 4 and improving the support stability of the support part 401. Furthermore, reinforcing bars 12 are provided on both symmetrical sides of the support plate 4. The reinforcing bars 12 are fixedly connected to the top of the bracket 3 and abut against the side walls of the support plate 4. The reinforcing bars 12 improve the structural strength of the support plate 4 and further enhance the support stability of the support part 401.

[0023] It should be noted that in other embodiments, the insulating base plate 2 may also be phenolic foam plastic.

[0024] It should be noted that multiple channel steels 8 are fixedly connected to the inner side of the support 3. These channel steels 8 are equidistantly distributed along the inner side of the support 3. The arrangement of the channel steels 8 improves the structural strength of the support 3, ensuring stable support for the support plate 4 and enhancing support stability. Furthermore, thermal insulation foam 9 is installed inside the channel steels 8. The thermal insulation foam 9 is extruded polystyrene foam insulation board, with an independent closed-cell structure. It is an environmentally friendly insulation material with beneficial properties such as low thermal conductivity, high compressive strength, moisture resistance, air tightness, non-absorbency, lightweight, corrosion resistance, and long service life, exhibiting excellent thermal insulation performance.

[0025] It should be added that four mounting blocks 13 are fixedly connected to the outer side of the insulation base plate 2. The four mounting blocks 13 are symmetrically distributed on both sides of the insulation base plate 2. Mounting holes 14 are provided on the inner side of the mounting blocks 13. The mounting blocks 13 and mounting holes 14 are used to fix the insulation base plate 2, ensuring the stability of the support structure.

[0026] The working principle of the above embodiments is as follows:

[0027] In use, the support plate 4 is stably supported by the cooperation of the bracket 3 and the channel steel 8. The upper ends of the multiple support vertical plates 7 in the support plate 4 and the two support parts 401 form an arc-shaped support part. The arc-shaped support part formed by the multiple support vertical plates 7 and the two support parts 401 can stably support the bottom wall of the tank 1. The lateral structural strength of the support vertical plates 7 is improved by the setting of the support inclined plate 11. At the same time, the structural strength of the support plate 4 is improved by the setting of the reinforcing plate 5, the reinforcing block 6 and the reinforcing bar 12, thereby improving the support stability of the support part 401 and making it stably support the tank 1.

[0028] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented. It should be noted that the orientation or positional relationship indicated herein is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

Claims

1. An insulating support structure for a large-capacity LNG cryogenic storage tank, characterized in that: Includes a tank body (1), and a support assembly is provided at the lower part of the tank body (1); The support assembly includes an insulating base plate (2), a bracket (3) is fixedly connected to the top of the insulating base plate (2), a support plate (4) is fixedly connected to the top of the bracket (3), two support parts (401) are provided on the upper part of the support plate (4), a reinforcing plate (5) is fixedly connected to the lower side of each of the two support parts (401), a plurality of support vertical plates (7) are provided between the two reinforcing plates (5), a connecting plate (10) is fixedly connected to the outer side of the support vertical plates (7) and the reinforcing plates (5), and a plurality of support inclined plates (11) are fixedly connected between the connecting plate (10) and the bracket (3).

2. The thermal insulation support structure for a large-capacity LNG cryogenic storage tank according to claim 1, characterized in that: Multiple channel steels (8) are fixedly connected to the inner side of the bracket (3), and the multiple channel steels (8) are equidistantly distributed along the inner side of the bracket (3).

3. The thermal insulation support structure for a large-capacity LNG cryogenic storage tank according to claim 2, characterized in that: The inner side of the channel steel (8) is provided with heat-insulating foam (9), and the heat-insulating base plate (2) is a vacuum heat-insulating plate.

4. The thermal insulation support structure for a large-capacity LNG cryogenic storage tank according to claim 1, characterized in that: Four mounting blocks (13) are fixedly connected to the outer side of the heat insulation base plate (2). The four mounting blocks (13) are symmetrically distributed on both sides of the heat insulation base plate (2). Mounting holes (14) are provided on the inner side of the mounting blocks (13).

5. The thermal insulation support structure for a large-capacity LNG cryogenic storage tank according to claim 1, characterized in that: The support plate (4) is provided with reinforcing bars (12) on both symmetrical sides. The reinforcing bars (12) are fixedly connected to the top of the bracket (3) and abut against the side wall of the support plate (4).

6. The thermal insulation support structure for a large-capacity LNG cryogenic storage tank according to claim 1, characterized in that: A reinforcing block (6) is fixedly connected between the reinforcing plate (5) and the inner wall of the support plate (4).

7. The thermal insulation support structure for a large-capacity LNG cryogenic storage tank according to claim 1, characterized in that: The supporting vertical plate (7) is fixedly connected to the inner side of the supporting plate (4), and the upper ends of the multiple supporting vertical plates (7) and the two supporting parts (401) form an arc-shaped supporting part.

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