CN220338219U

CN220338219U - LNG three-layer metal wall full-capacity storage tank

Info

Publication number: CN220338219U
Application number: CN202321991722.9U
Authority: CN
Inventors: 肖志强
Original assignee: Suzhou Doer Gaseous Chemical Equipment Co ltd
Current assignee: Suzhou Doer Gaseous Chemical Equipment Co ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-01-12
Anticipated expiration: 2033-07-27

Abstract

The utility model relates to the technical field of cold insulation and safety of storage tanks, in particular to an LNG three-layer metal wall full-capacity storage tank. The utility model provides the LNG three-layer metal wall full-capacity storage tank which can effectively store leaked LNG liquid, increases the safety coefficient during LNG storage and prevents cold insulation materials from being scrapped. The utility model provides a LNG three-layer metal wall holds storage tank entirely, is including base, first anchor assembly, outer jar body and vault, and the base top is connected with outer jar body, is connected with a plurality of first anchor assemblies between with the base, and outer jar body top is connected with the vault. When the LNG liquid leakage is dealt with, the secondary inner tank body is used as the blocking container of the leakage medium, so that the leaked LNG liquid can be effectively stored, and the safety coefficient of LNG storage is increased.

Description

LNG three-layer metal wall full-capacity storage tank

Technical Field

The utility model relates to the technical field of cold insulation and safety of storage tanks, in particular to an LNG three-layer metal wall full-capacity storage tank.

Background

At present, the domestic double-metal-wall full-capacity storage tank has the common phenomenon of frosting at the bottom outer wall and the reserved door opening, and the summary reasons are mainly that the cold insulation is not in place, the cold quantity is permeated out, the frosting of the tank wall is caused, the evaporation rate is increased, unnecessary loss is increased, and when the LNG liquid leakage is handled, the cold insulation material is easily damaged due to the permeation of the LNG leakage liquid, so that the maintenance difficulty and the cost are high after the leakage.

Therefore, aiming at the defects of the prior art, the LNG three-layer metal wall full-capacity storage tank capable of effectively storing leaked LNG liquid is developed, the safety coefficient of LNG storage is increased, and cold insulation materials are prevented from being scrapped.

Disclosure of Invention

In order to overcome the defects that the existing double-metal-wall full-capacity storage tank is frosted at the outer wall of the bottom and a reserved door opening, and the cold insulation material is easy to be scrapped due to the permeation of LNG leakage liquid when the LNG liquid leakage is handled, so that the maintenance is difficult and the cost is high after the LNG leakage.

The technical scheme of the utility model is as follows: the utility model provides a LNG three-layer metal wall holds storage tank entirely, is including base, first anchor assembly, outer jar body and vault, and the base top is connected with outer jar body, is connected with a plurality of first anchor assemblies between with the base, and outer jar body top is connected with the vault.

Further, still including second anchor assembly, inferior inner tank body, inner tank barrel, business turn over pipeline, hoist cable, furred ceiling heat preservation and inner tube furred ceiling board, the internal bottom of outer jar is connected with a plurality of second anchor assemblies, is connected with inferior inner tank body between the second anchor assembly, and inferior inner tank body is inside to be provided with the inner tank barrel, and vault left part is connected with business turn over pipeline, and business turn over pipeline bottom wears into inside the inner tank barrel, and vault bottom is connected with many hoist cables, is connected with furred ceiling heat preservation between the hoist cable bottom, and inferior inner tank body top is connected with inner tube furred ceiling board.

Further described, the device also comprises a spraying piece, and the upper part of the outer tank body is connected with the spraying piece.

Further, a cold insulation material such as pearlitic sand is filled between the outer tank and the secondary inner tank.

Further, the secondary inner tank body is slightly higher than the inner tank body, and an anti-overflow storage space is arranged between the secondary inner tank body and the inner tank body, so that leaked LNG liquid can be temporarily stored.

Further stated, a plurality of balance holes are formed in the top of the suspended ceiling heat-insulating layer.

The beneficial effects are that: 1. when the LNG liquid leakage is dealt with, the secondary inner tank body is used as the blocking container of the leakage medium, so that the leaked LNG liquid can be effectively stored, and the safety coefficient of LNG storage is increased.

2. The secondary inner tank body isolates the cold insulation material in the outer tank body, can avoid the liquid leakage to the pearly-lustre sand and foam glass, and the scrapping of the cold insulation material is caused, so that the replacement of the cold insulation material is reduced, the larger loss is reduced, and the maintenance is time-saving and labor-saving.

3. The utility model separates the inner tank body from the cold insulation material, avoids the direct contact of the wall plate of the main container for storing liquid with the cold insulation material, reduces the conduction loss of cold quantity, and can effectively avoid the frosting phenomenon at the bottom and reserved door opening of the existing domestic double-metal-wall full-container storage tank.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic structural view of the present utility model.

Fig. 3 is a perspective view of the present utility model.

The marks of the components in the drawings are as follows: 1: base, 2: first anchor, 3: outer jar body, 4: vault, 5: spray piece, 6: second anchor, 7: secondary inner tank, 8: inner tank barrel, 9: inlet and outlet pipes, 10: balance hole, 11: sling, 12: furred ceiling heat preservation, 13: an inner cylinder ceiling plate.

Detailed Description

The above-described aspects are further described below in conjunction with specific embodiments. It should be understood that these examples are illustrative of the present application and are not limiting the scope of the present application. The implementation conditions used in the examples may be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are generally those in routine experiments.

The utility model provides a LNG three-layer metal wall holds storage tank entirely, as shown in fig. 1-3, including base 1, first anchor assembly 2, outer jar body 3, vault 4 and spray 5, base 1 top is connected with outer jar body 3, is connected with a plurality of first anchor assemblies 2 between with base 1, and outer jar body 3 top is connected with vault 4, and outer jar body 3 upper portion is connected with sprays 5, sprays 5 and can defrost the outer jar body 3 surface.

As shown in fig. 1-3, the device further comprises a second anchoring member 6, a secondary inner tank body 7, an inner tank body 8, an inlet and outlet pipeline 9, slings 11, a suspended ceiling heat insulation layer 12 and an inner tank suspended ceiling 13, wherein a plurality of second anchoring members 6 are connected to the inner bottom of the outer tank body 3, the secondary inner tank body 7 is connected between the second anchoring members 6, cold insulation materials such as pearly-luster sand and the like are filled between the outer tank body 3 and the secondary inner tank body 7, the inner tank body 8 is arranged in the secondary inner tank body 7, the secondary inner tank body 7 is slightly higher than the inner tank body 8, an overflow-preventing storage space is arranged between the secondary inner tank body 7 and the inner tank body 8, leaked LNG liquid can be temporarily stored, the left part of the suspended ceiling 4 is connected with the inlet and outlet pipeline 9, the bottom of the inlet and outlet pipeline 9 penetrates into the inner tank body 8, a plurality of slings 11 are connected to the bottom of the suspended ceiling 4, the suspended ceiling heat insulation layer 12 is connected to the bottom of the slings 11, a plurality of balance holes 10 are formed in the top of the suspended ceiling heat insulation layer 12, and the inner tank body 7 is connected to the top of the suspended ceiling 13.

When the three-layer metal wall full-capacity storage tank is used for storing LNG liquid, the LNG liquid is led in and out through the inlet and outlet pipeline 9, when the LNG liquid is stored, the inner tank body 8 is used for storing LNG liquid, ship plate medium evaporation gas is arranged under normal working conditions in the secondary inner tank body 7, the inner part of the outer tank body 3 is used for containing evaporation gas and cold insulation materials, the secondary inner tank body 7 is slightly higher than the inner tank body 8, when the inner tank body is in leakage condition, the secondary inner tank body 7 is used as a storage blocking container for leakage media, the leaked LNG liquid can be effectively stored, the secondary inner tank body 7 isolates cold insulation materials in the outer tank body 3, therefore, even under the condition of LNG leakage, normal use of the cold insulation materials can be guaranteed, the cold insulation materials are not damaged, liquid leakage to ship plate medium evaporation gas is avoided, rejection of the cold insulation materials is caused, replacement of the cold insulation materials is reduced, time and labor are saved, meanwhile, the inner tank body 8 is separated from the cold insulation materials, the main wall plate container for storing the liquid can be directly contacted with the main wall plate container in China, the current phenomenon of cold insulation material of the cold insulation material is avoided, and the current heat transfer phenomenon of the bottom of the cold storage tank is avoided.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. All equivalents and alternatives falling within the spirit of the utility model are intended to be included within the scope of the utility model. What is not elaborated on the utility model belongs to the prior art which is known to the person skilled in the art.

Claims

1. An LNG three-layer metal wall full-capacity storage tank which is characterized in that: the novel energy-saving tank comprises a base (1), first anchoring pieces (2), an outer tank body (3) and a vault (4), wherein the top of the base (1) is connected with the outer tank body (3), a plurality of first anchoring pieces (2) are connected between the base (1), and the top of the outer tank body (3) is connected with the vault (4);

LNG three-layer metal wall holds storage tank entirely still including second anchor assembly (6), inferior inner tank body (7), inner tank barrel (8), business turn over pipeline (9), hoist cable (11), furred ceiling heat preservation (12) and inner tube furred ceiling board (13), be connected with a plurality of second anchor assemblies (6) in outer tank body (3), be connected with inferior inner tank body (7) between second anchor assembly (6), inferior inner tank body (7) inside is provided with inner tank barrel (8), vault (4) left part is connected with business turn over pipeline (9), business turn over pipeline (9) bottom wears into inside inner tank barrel (8), vault (4) bottom is connected with many hoist cables (11), be connected with furred ceiling heat preservation (12) between hoist cable (11) bottom, inferior inner tank body (7) top is connected with inner tube furred ceiling board (13).

2. A LNG triple-layer metal wall full containment tank as set forth in claim 1 wherein: the utility model also comprises a spray piece (5), and the upper part of the outer tank body (3) is connected with the spray piece (5).

3. A LNG triple-layer metal wall full containment tank as set forth in claim 2 wherein: a cold insulation material is filled between the outer tank body (3) and the secondary inner tank body (7).

4. A LNG triple-layer metal wall full containment tank as set forth in claim 3 wherein: the secondary inner tank body (7) is slightly higher than the inner tank body (8), and an anti-overflow storage space is arranged between the secondary inner tank body (7) and the inner tank body (8), so that leaked LNG liquid can be temporarily stored.

5. An LNG triple-layer metal wall full containment tank as set forth in claim 4 wherein: the top of the suspended ceiling heat insulation layer (12) is provided with a plurality of balance holes (10).