LNG storage tank

Abstract

The utility model belongs to the technical field of liquefied natural gas storage equipment, and discloses an LNG storage tank which comprises a storage tank body, the bottom of the storage tank body is connected with a water collection and heat dissipation assembly, the water collection and heat dissipation assembly is connected with a cooling assembly corresponding to the storage tank body, and the water collection and heat dissipation assembly comprises a supporting cabinet. The storage tank body is fixed to the top of the supporting cabinet, a water guiding groove is formed in the top of the supporting cabinet, a partition plate is arranged in an inner cavity of the supporting cabinet, flow dividing openings are evenly distributed in the partition plate, a ventilation groove is formed in the outer side of the supporting cabinet, a water storage cavity is formed in the bottom of the inner cavity of the supporting cabinet, and the cooling assembly comprises a supporting frame and adopts a lifting structure to spray water. According to the cooling storage tank, cooling water can be fully sprayed to each place, the cooling effect is guaranteed, an air blowing structure is arranged, water on the outer surface of the storage tank body is rapidly evaporated so as to take away heat, the purpose of rapid cooling is achieved, and the cooling effect and efficiency are effectively improved.

Description

Technical Field

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

[0002] LNG is the abbreviation of liquefied natural gas. Natural gas refers to a gaseous natural resource existing in the strata under the action of various natural factors. Its main components are alkanes, of which methane accounts for the vast majority, and there are also small amounts of ethane, propane and butane. In addition, there are generally hydrogen sulfide, carbon dioxide, nitrogen and water vapor, a small amount of carbon monoxide and trace amounts of rare gases such as helium and argon. LNG storage tanks, or liquefied natural gas storage tanks, are important equipment for storing liquefied natural gas.

[0003] A Chinese patent with application number 202320933396.X discloses an LNG storage tank, including a tank body, a plurality of spray devices are provided in a vertical spacing ring on the upper part of the tank body, and the plurality of spray devices are connected through a main pipe, the main pipe is vertically arranged on the side of the tank body, the spray device includes an annular pipe and a plurality of spray mechanisms distributed in a circular array on the inner surface of the annular pipe, the annular pipe is fixedly connected to the tank body through a plurality of first connecting rods arranged at intervals, the spray mechanism includes a spray pipe body and a boosting assembly, one end of the spray pipe body is threadedly connected to the annular pipe, and the other end is closed and has a plurality of spray holes, the boosting assembly is arranged in the spray pipe body, the utility model has the technical characteristics of quickly taking away the surface temperature of the tank body to achieve the purpose of rapid cooling, thereby reducing BOG gas generation and slowing down LNG loss to improve economic benefits.

[0004] However, the above-mentioned LNG storage tanks have the following deficiencies in actual use: the water used for spraying cannot be recycled, resulting in a large amount of water resource waste.

[0005] Therefore, in view of the above problems, an LNG storage tank is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides an LNG storage tank, which has the advantages of recycling spray water, reducing water resource waste, and improving cooling effect.

[0007] To achieve the above object, the utility model provides the following technical solution: an LNG storage tank, comprising a storage tank body, a water collecting and heat dissipation component is connected to the bottom of the storage tank body, and the water collecting and heat dissipation component is connected to a cooling component corresponding to the storage tank body;

[0008] The water collection and heat dissipation assembly includes a support cabinet, the storage tank body is fixed to the top of the support cabinet, a water guide groove is provided on the top of the support cabinet, a partition is provided in the inner cavity of the support cabinet, and diversion ports are evenly distributed on the partition, a ventilation groove is provided on the outer side of the support cabinet, and a water storage cavity is provided at the bottom of the inner cavity of the support cabinet;

[0009] The cooling assembly includes a support frame, which is fixedly connected to a support cabinet, a drive motor is installed on the support frame, an output end of the drive motor is connected to a screw rod, the screw rod is threadedly connected to a lifting platform, the lifting platform is fixedly connected to an annular air duct and an annular water pipe through a connecting frame, the annular air duct and the annular water pipe are both sleeved on the storage tank body, the inner walls of the annular air duct and the annular water pipe are respectively installed with evenly distributed air outlets and nozzles, the annular air duct is connected to a fan through a pipeline, the fan is installed on the lifting platform, the annular water pipe is connected to a water pump through a pipeline, and the water pump is connected to a water storage chamber through a water guide pipe.

[0010] Preferably, a water collecting bucket is fixedly connected to the top of the supporting cabinet near the edge.

[0011] Preferably, partition nets are installed in both the water guide groove and the ventilation groove.

[0012] Preferably, a sliding groove is provided on the inner wall of the support frame, and the sliding groove is slidably connected to the lifting platform through a sliding block.

[0013] Preferably, a threaded hole is provided in the middle of the lifting platform, and the threaded hole is threadedly connected to a lead screw.

[0014] Preferably, the water conduit is composed of a water conduit hose and a water conduit straight pipe, the water conduit hose is connected to a water pump, and the water conduit straight pipe is connected to a supporting cabinet.

[0015] Preferably, an expansion tube is provided at the connection between the water-conducting hose and the water-conducting straight pipe, and an adsorption filler is provided in the expansion tube.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model can collect the spray water by setting a water collection and heat dissipation component, and dissipate the heat in time to facilitate recycling and avoid waste of water resources;

[0018] 2. The utility model sets a cooling component and adopts a lifting structure to spray water, so as to ensure that cooling water can be fully sprayed everywhere to ensure the cooling effect, and sets a blowing structure to make the water on the outer surface of the storage tank body evaporate quickly to take away the heat, so as to achieve the purpose of rapid cooling, and effectively improve the cooling effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the support cabinet of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the cooling assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the water guide trough of the utility model;

[0023] Figure 5 It is a schematic diagram of the bottom structure of the partition of the utility model.

[0024] In the figure: 1. Storage tank body;

[0025] 2. Water collection and heat dissipation assembly; 21. Support cabinet; 22. Water guide trough; 23. Partition; 24. Diversion port; 25. Ventilation slot; 26. Water storage chamber;

[0026] 3. Cooling assembly; 31. Support frame; 32. Driving motor; 33. Screw rod; 34. Lifting platform; 35. Annular air duct; 36. Annular water pipe; 37. Air outlet; 38. Nozzle; 39. Fan; 310. Water pump; 311. Water pipe; 3111. Water hose; 3112. Water straight pipe;

[0027] 4. Water collecting bucket; 5. Partition net; 6. Sliding groove; 7. Threaded hole; 8. Expansion tube. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 5 As shown, the utility model provides an LNG storage tank, including a storage tank body 1, a water collecting and heat dissipating assembly 2 is connected to the bottom of the storage tank body 1, and the water collecting and heat dissipating assembly 2 is connected to a cooling assembly 3 corresponding to the storage tank body 1;

[0030] The water collecting and heat dissipating assembly 2 comprises a supporting cabinet 21, the storage tank body 1 is fixed on the top of the supporting cabinet 21, a water guide groove 22 is arranged on the top of the supporting cabinet 21, a partition 23 is arranged in the inner cavity of the supporting cabinet 21, and diversion ports 24 are evenly distributed on the partition 23, a ventilation groove 25 is arranged on the outer side of the supporting cabinet 21, and a water storage cavity 26 is arranged at the bottom of the inner cavity of the supporting cabinet 21, which can collect the spray water and dissipate the heat in time for recycling and avoiding the waste of water resources;

[0031] The cooling assembly 3 includes a support frame 31, the support frame 31 is fixedly connected to the support cabinet 21, a driving motor 32 is installed on the support frame 31, the output end of the driving motor 32 is connected to a screw rod 33, the screw rod 33 is threadedly connected to a lifting platform 34, the lifting platform 34 is fixedly connected to an annular air duct 35 and an annular water pipe 36 through a connecting frame, the annular air duct 35 and the annular water pipe 36 are both sleeved on the storage tank body 1, and the inner walls of the annular air duct 35 and the annular water pipe 36 are respectively installed with evenly distributed air outlets 37 and nozzles 38. The annular air duct 35 is connected to the fan 39 through a pipeline, and the fan 39 is installed on the lifting platform 34. The annular water pipe 36 is connected to the water pump 310 through a pipeline, and the water pump 310 is connected to the water storage chamber 26 through the water guide pipe 311. The lifting structure is used to spray water to ensure that cooling water can be fully sprayed to every place to ensure the cooling effect. In addition, a blowing structure is provided to make the water on the outer surface of the storage tank body 1 evaporate quickly to take away the heat, thereby achieving the purpose of rapid cooling, and effectively improving the cooling effect and efficiency.

[0032] Specifically, a water collecting bucket 4 is fixedly connected to the top of the support cabinet 21 near the edge.

[0033] Furthermore, a partition net 5 is installed in both the water guide groove 22 and the ventilation groove 25 .

[0034] Furthermore, a sliding groove 6 is provided on the inner wall of the support frame 31 , and the sliding groove 6 is slidably connected to the lifting platform 34 via a sliding block.

[0035] It is worth noting that a threaded hole 7 is provided in the middle of the lifting platform 34 , and the threaded hole 7 is threadedly connected to the screw rod 33 .

[0036] It is worth noting that the water pipe 311 is composed of a water hose 3111 and a water straight pipe 3112 . The water hose 3111 is connected to the water pump 310 , and the water straight pipe 3112 is connected to the support cabinet 21 .

[0037] It is worth mentioning that an expansion tube 8 is provided at the connection between the water-conducting hose 3111 and the water-conducting straight tube 3112, and an adsorption filler is provided in the expansion tube 8.

[0038] Among them, the drive motor 32, the fan 39, and the water pump 310 are existing technologies and will not be described in detail; at the same time, the utility model also includes a power supply, a controller, and a switch, which are not the main technical points of this patent and will not be described in detail.

[0039] Working principle and process: start the water pump 310 of the cooling component 3, and the water in the water storage chamber 26 is sprayed out from the nozzle 38 after passing through the water guide pipe 311, the water pump 310, and the annular water pipe 36. Start the driving motor 32 of the cooling component 3, and then the screw rod 33 rotates, so that the lifting platform 34 moves downward, which can drive the annular water pipe 36 to move downward to ensure that the spray water can be sprayed to the outer surface of the storage tank body 1. At the same time, start the fan 39, and the cold air is discharged from the air outlet 37 after passing through the annular air duct 35. The wind flow causes the water on the outer surface of the storage tank body 1 to evaporate quickly, which can absorb the heat on the outer surface of the storage tank body 1, achieving fast cooling. For the purpose of rapid cooling, most of the spray water slides along the outer surface of the storage tank body 1 into the water collecting bucket 4, that is, the support cabinet 21, and the spray water falls on the partition 23 along the water guide groove 22. The water on the partition 23 is divided into multiple streams through the diversion port 24, which can quickly dissipate heat and cool down. The water after cooling and heat dissipation falls into the water storage cavity 26 and is sucked away by the water pipe 311 for reuse. The water pipe 311 is composed of a water hose 3111 and a water straight pipe 3112, and an expansion cylinder 8 is arranged in between, which is filled with adsorption filler, which can filter out large-size particles and avoid clogging of the nozzle 38, which is beneficial to the use of the storage tank.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LNG storage tank, comprising a storage tank body (1), characterized in that: The bottom of the storage tank body (1) is connected to a water collecting and heat dissipating assembly (2), and the water collecting and heat dissipating assembly (2) is connected to a cooling assembly (3) corresponding to the storage tank body (1); The water collection and heat dissipation assembly (2) comprises a support cabinet (21), the storage tank body (1) is fixed to the top of the support cabinet (21), a water guide groove (22) is provided on the top of the support cabinet (21), a partition (23) is provided in the inner cavity of the support cabinet (21), and diversion ports (24) are evenly distributed on the partition (23), a ventilation groove (25) is provided on the outer side of the support cabinet (21), and a water storage cavity (26) is provided at the bottom of the inner cavity of the support cabinet (21); The cooling assembly (3) comprises a support frame (31), the support frame (31) is fixedly connected to the support cabinet (21), a driving motor (32) is installed on the support frame (31), an output end of the driving motor (32) is connected to a screw rod (33), the screw rod (33) is threadedly connected to a lifting platform (34), the lifting platform (34) is fixedly connected to an annular air duct (35) and an annular water pipe (36) through a connecting frame, and the annular air duct (35) and the annular water pipe (36) are connected to each other. 6) are sleeved on the storage tank body (1), the inner walls of the annular air duct (35) and the annular water pipe (36) are respectively installed with evenly distributed air outlets (37) and nozzles (38), the annular air duct (35) is connected to a fan (39) through a pipeline, the fan (39) is installed on the lifting platform (34), the annular water pipe (36) is connected to a water pump (310) through a pipeline, and the water pump (310) is connected to the water storage chamber (26) through a water guide pipe (311).

2. The LNG storage tank according to claim 1, characterized in that: A water collecting bucket (4) is fixedly connected to the top of the support cabinet (21) near the edge.

3. The LNG storage tank according to claim 1, characterized in that: The water guide groove (22) and the ventilation groove (25) are both installed with a partition net (5).

4. The LNG storage tank according to claim 1, characterized in that: A sliding groove (6) is provided on the inner wall of the support frame (31), and the sliding groove (6) is slidably connected to the lifting platform (34) via a sliding block.

5. The LNG storage tank according to claim 1, characterized in that: A threaded hole (7) is provided in the middle of the lifting platform (34), and the threaded hole (7) is threadedly connected to the screw rod (33).

6. The LNG storage tank according to claim 1, characterized in that: The water guide pipe (311) is composed of a water guide hose (3111) and a water guide straight pipe (3112); the water guide hose (3111) is connected to a water pump (310), and the water guide straight pipe (3112) is connected to a support cabinet (21).

7. An LNG storage tank according to claim 6, characterized in that: An expansion tube (8) is provided at the connection between the water-conducting hose (3111) and the water-conducting straight tube (3112), and an adsorbent filler is provided inside the expansion tube (8).

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