LNG storage tank

Abstract

The utility model relates to the technical field of liquefied natural gas, and discloses an LNG (liquefied natural gas) storage tank which comprises an outer tank, an inner tank is mounted in the outer tank, a top cover cold insulation layer is arranged at the top end of the inner tank, a bottom cold insulation layer is arranged at the bottom end of the inner tank, a fixing block is fixedly connected to the top end of the outer tank, a mounting rod is in threaded connection with the fixing block, and the mounting rod is in threaded connection with the inner tank. And a sunshade heat insulation plate and a supporting block are connected to the mounting rod in a sliding manner. According to the technical scheme, installation of the sunshade heat insulation plate can be achieved through the installation rods and the fixing blocks, the height of the sunshade heat insulation plate can be adjusted by sliding the supporting blocks on the installation rods, the sunshade heat insulation plate is locked through the bolts after adjustment is completed, the sunshade heat insulation plate can block sunlight, and the heat insulation effect is achieved; sunlight is prevented from directly irradiating the top end of the inner tank, the heat insulation performance of the inner tank is improved, the structures can be flexibly disassembled and assembled, and convenience and practicability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquefied natural gas, in particular to an LNG storage tank. Background Art

[0002] Liquefied natural gas (LNG), primarily composed of methane, is recognized as the cleanest fossil energy source on Earth. It is colorless, odorless, non-toxic, and non-corrosive. Its volume is approximately 1 / 625 of the volume of gaseous natural gas, and its mass is only about 45% of the same volume of water.

[0003] The published patent document with the announcement number CN217635053U discloses an inner tank structure for an LNG storage tank, comprising a tank body, the tank body comprising an outer tank and an inner tank, the inner tank having a bottom insulation layer at the bottom of the inner wall, the bottom insulation layer comprising foam glass bricks and an asphalt felt pad, a tank wall insulation layer surrounding the inner wall of the inner tank, a top cover insulation layer at the top of the inner wall of the inner tank, and an insulation assembly fixed to the bottom of the inner tank. The utility model comprises a bottom insulation layer, a tank wall insulation layer, and an insulation assembly, wherein the bottom insulation layer is provided with multiple layers of foam glass bricks and filled with an asphalt felt pad, so that the water absorption rate of the entire bottom insulation layer is extremely low, the interior is sealed by bubbles, there is no capillary phenomenon, and it has good thermal insulation properties. In conjunction with the bottom insulation assembly, it can increase the overall strength while improving the overall thermal insulation performance. The tank wall insulation layer can also be surrounded by insulation on the outside, keeping the internal LNG at a low temperature, meeting the long-term storage requirements of LNG.

[0004] In actual use of the above patent, since the tank body is used outdoors for a long time, the sunlight is only exposed to the heat through the cold insulation layer of the top cover, and the insulation effect is poor. Therefore, an LNG storage tank is needed. Utility Model Content

[0005] The purpose of the utility model is to provide an LNG storage tank, which solves the problems raised in the background technology.

[0006] An embodiment of the present application provides an LNG storage tank, comprising an outer tank, an inner tank installed inside the outer tank, a top cover cold insulation layer provided at the top end of the inner tank, a bottom cold insulation layer provided at the bottom end of the inner tank, a fixed block fixedly connected to the top end of the outer tank, a mounting rod threadedly connected to the fixed block, a sunshade and heat insulation board and a support block slidably connected to the mounting rod, the support block is supported at the bottom end of the sunshade and heat insulation board, a bolt is passed through the support block, and the bolt is threadedly connected to the mounting rod.

[0007] During use, since the LNG storage tank is an existing technology, its working principle will not be described in detail. The installation of the sunshade and heat insulation board can be achieved through the installation rod and the fixing block. The height of the sunshade and heat insulation board can be adjusted by sliding the support block on the installation rod. After the adjustment is completed, it can be locked by bolts. The sunshade and heat insulation board can block sunlight and have a heat insulation effect, avoiding direct sunlight on the top of the inner tank, improving the heat insulation of the inner tank, and the various structures can be flexibly disassembled and assembled, which is convenient for subsequent maintenance.

[0008] Optionally, a support seat is fixedly connected to an outer wall of one side of the outer tank.

[0009] By adopting the above technical solution, it is beneficial to improve the stability and limiting effect of the tank when it is transported horizontally, thereby avoiding rolling.

[0010] Optionally, an elastic felt layer and an expanded perlite layer are provided between the outer tank and the inner tank.

[0011] By adopting the above technical solution, the thermal insulation effect of the storage tank is further improved.

[0012] Optionally, a threaded sliding limit block is provided on the mounting rod, and the limit block is located at the top end of the sunshade and heat insulation board.

[0013] By adopting the above technical solution, the fixing block can improve the firmness of the installation of the sunshade and heat insulation board.

[0014] Optionally, threaded holes adapted to fit bolts are provided on the mounting rod along its length.

[0015] The adoption of the above technical solution is conducive to fixing the adjusted support block.

[0016] Optionally, a circular hole matching the mounting rod is provided on the sunshade and heat insulation board.

[0017] The adoption of the above technical solution is conducive to the disassembly and assembly of the sunshade and heat insulation board.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] The technical solution of the present application can realize the installation of the sunshade and heat insulation board through the installation rod and the fixing block. The height of the sunshade and heat insulation board can be adjusted by sliding the support block on the installation rod. After the adjustment is completed, it can be locked by bolts. The sunshade and heat insulation board can block sunlight and have a heat insulation effect, avoiding direct sunlight on the top of the inner tank, improving the heat insulation of the inner tank, and the structures can be flexibly disassembled and assembled, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is a schematic diagram of the internal structure of an LNG storage tank of the present utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of an LNG storage tank of the present utility model;

[0023] Figure 3 This is a structural schematic diagram of a sunshade and heat insulation board for an LNG storage tank according to the present utility model.

[0024] In the figure: 1. Limit block; 2. Bolt; 3. Sunshade and heat insulation board; 4. Support block; 5. Mounting rod; 6. Fixing block; 7. Elastic felt layer; 8. Filled expanded perlite layer; 9. Outer tank; 10. Bottom insulation layer; 11. Inner tank; 12. Top cover insulation layer; 13. Threaded hole; 14. Support seat; 15. Round hole. DETAILED DESCRIPTION

[0025] See also Figure 1-3 The utility model provides a technical solution: an LNG storage tank, comprising an outer tank 9, an inner tank 11 is installed inside the outer tank 9, the top of the inner tank 11 is provided with a top cover cold insulation layer 12, the bottom end of the inner tank 11 is provided with a bottom cold insulation layer 10, the top of the outer tank 9 is fixedly connected to a fixing block 6, the fixing block 6 is threadedly connected to a mounting rod 5, the mounting rod 5 is slidably connected to a sunshade and heat insulation board 3 and a support block 4, the support block 4 is supported at the bottom end of the sunshade and heat insulation board 3, the support block 4 is penetrated by a bolt 2, and the bolt 2 is threadedly connected to the mounting rod 5.

[0026] In the technical solution of the present utility model, Figure 2 As shown, a support base 14 is fixedly connected to the outer wall of one side of the outer tank 9; this is beneficial to improve the stability and limit effect of the tank body when it is transported horizontally, and avoid rolling.

[0027] In the technical solution of the present utility model, Figure 1 As shown, an elastic felt layer 7 and an expanded perlite layer 8 are provided between the outer tank 9 and the inner tank 11, thereby further improving the thermal insulation effect of the storage tank.

[0028] In the technical solution of the present utility model, Figure 1 As shown, there is a threaded sliding limit block 1 on the installation rod 5, and the limit block 1 is located at the top of the sunshade and heat insulation board 3; the limit block 1 can improve the firmness of the installation of the sunshade and heat insulation board 3.

[0029] In the technical solution of the present utility model, Figure 2As shown, a threaded hole 13 adapted to the bolt 2 is opened on the mounting rod 5 along the length direction, which is conducive to fixing the adjusted support block 4.

[0030] In the technical solution of the present utility model, Figure 3 As shown, a round hole 15 matching the mounting rod 5 is provided on the sunshade and heat insulation board 3 , which is convenient for disassembly and assembly of the sunshade and heat insulation board 3 .

[0031] During use, since the LNG storage tank is an existing technology, its working principle will not be described in detail. The installation of the sunshade and heat insulation board 3 can be achieved through the installation rod 5 and the fixing block 6. The height of the sunshade and heat insulation board 3 can be adjusted by sliding the support block 4 on the installation rod 5. After the adjustment is completed, it can be locked by the bolt 2. The sunshade and heat insulation board 3 can block the sunlight and have a heat insulation effect, avoiding direct sunlight on the top of the inner tank 11, thereby improving the heat insulation of the inner tank 11, and the various structures can be flexibly disassembled and assembled, which is convenient for subsequent maintenance.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still apply the above embodiments to the present invention.

[0033] The technical solution is modified, or some of the technical features are replaced by equivalent ones.

[0034] Any modification, equivalent replacement, improvement made within the spirit and principle of this utility model

[0035] etc., should all be included in the protection scope of this utility model.

Claims

1. An LNG storage tank, characterized by: The invention comprises an outer tank (9), an inner tank (11) is installed inside the outer tank (9), a top cover cold insulation layer (12) is provided at the top end of the inner tank (11), a bottom cold insulation layer (10) is provided at the bottom end of the inner tank (11), a fixing block (6) is fixedly connected to the top end of the outer tank (9), a mounting rod (5) is threadedly connected to the fixing block (6), a sunshade and heat insulation board (3) and a support block (4) are slidably connected to the mounting rod (5), the support block (4) is supported at the bottom end of the sunshade and heat insulation board (3), a bolt (2) is passed through the support block (4), and the bolt (2) is threadedly connected to the mounting rod (5).

2. The LNG storage tank according to claim 1, characterized in that: A support seat (14) is fixedly connected to an outer wall of one side of the outer tank (9).

3. The LNG storage tank according to claim 1, characterized in that: An elastic felt layer (7) and a filled expanded perlite layer (8) are provided between the outer tank (9) and the inner tank (11).

4. The LNG storage tank according to claim 1, characterized in that: A threaded sliding limit block (1) is provided on the mounting rod (5), and the limit block (1) is located at the top end of the sunshade and heat insulation board (3).

5. The LNG storage tank according to claim 1, characterized in that: The mounting rod (5) is provided with a threaded hole (13) along the length direction thereof, which is adapted to the bolt (2).

6. The LNG storage tank according to claim 1, characterized in that: The sunshade and heat insulation board (3) is provided with a circular hole (15) that matches the mounting rod (5).

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