Hydrogen energy transportation storage tank

Abstract

The utility model relates to the technical field of hydrogen energy, and discloses a hydrogen energy transportation storage tank which comprises a tank body, the tank body comprises an outer shell and an inner container arranged in the shell, a buffer layer is arranged between the shell and the inner container, a plurality of reinforcing ribs are fixed to the upper side and the lower side of the inner wall of the inner container at equal intervals, and a separation cavity is formed between every two reinforcing ribs. Partition plates are arranged in the multiple separation cavities, and gaps are reserved between the multiple partition plates and the inner wall of the inner container. According to the liquid hydrogen storage tank, the separation cavities are formed in the inner container to achieve sectional type storage of the liquid hydrogen, the pressure of the liquid hydrogen is shared in each separation cavity, the pressure borne by the liquid hydrogen storage tank is smaller than that borne by the liquid hydrogen storage tank when the whole inner container cavity is used for storing the liquid hydrogen, meanwhile, when the tank body shakes, the liquid hydrogen only shakes in each independent separation cavity, and therefore the liquid hydrogen storage effect is improved. The shaking amplitude is smaller, the liquid hydrogen is not easy to evaporate, the loss is smaller, and the impact force of the liquid hydrogen on the inner wall of the liner is also reduced when the liquid hydrogen shakes.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen energy, in particular to a hydrogen energy transport storage tank. Background Art

[0002] Hydrogen energy is a secondary energy source and a recognized clean energy source. Hydrogen mainly appears in the form of chemical compounds on Earth and is the most widely distributed substance in the universe. Hydrogen is gradually becoming an important energy source, and the production, storage, transportation and application technologies of hydrogen will also be advancing by leaps and bounds. Due to the high calorific value of hydrogen, the product of hydrogen combustion is water. It is the cleanest energy in the world, with abundant resources and sustainable development.

[0003] The main modes of transporting hydrogen energy currently include high-pressure gas transportation, liquid hydrogen transportation, and pipeline transportation. Liquid hydrogen transportation is to deep freeze hydrogen to 21K to liquefy it, and then load it into an insulated tank truck for transportation. Special hydrogen energy storage tanks are required for transportation. During transportation, hydrogen energy storage tanks will shake due to road bumps, vehicle driving conditions, etc. The liquid hydrogen inside the tank will shake with the tank. When shaking, the liquid hydrogen will exert a greater pressure on the inner wall of the tank. At the same time, when the shaking is more severe, the liquid hydrogen is also prone to volatilization and loss. A hydrogen energy transport storage tank is proposed that can reduce the shaking amplitude of liquid hydrogen, reduce the volatilization loss of liquid hydrogen during transportation, and reduce the pressure on the inner wall of the tank when liquid hydrogen shakes. Utility Model Content

[0004] The purpose of the utility model is to provide a hydrogen transport storage tank to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hydrogen transport storage tank comprises a tank body, wherein the tank body comprises an external shell and an inner liner arranged inside the shell, a buffer layer is arranged between the shell and the inner liner, a plurality of reinforcing ribs are fixed at equal intervals on upper and lower sides of an inner wall of the inner liner, a plurality of the reinforcing ribs form separation cavities between two of each other, a plurality of the separation cavities are each provided with a partition plate, and a plurality of the partition plates have gaps between the inner wall of the inner liner.

[0007] As a further solution of the utility model: the shell includes an outer shell and an inner shell, the inner shell is fixed inside the outer shell, and a heat preservation layer is arranged between the outer shell and the inner shell.

[0008] As a further solution of the utility model: a hollow tube is fixed inside the inner tank along the axial direction, and multiple partition plates are rotatably sleeved on the hollow tube. Multiple through holes are evenly spaced on the inner walls on the upper and lower sides of the hollow tube. A cooling tube is fixed inside the hollow tube, and a gap is left between the cooling tube and the inner wall of the hollow tube.

[0009] As a further solution of the utility model: an upper mounting block is fixed on the top of the tank body, a hydrogen injection pipe is fixed on the upper mounting block, a lower mounting block is fixed on the bottom of the tank body, a hydrogen discharge pipe is fixed on the lower mounting block, and sealing covers are provided on the hydrogen injection pipe and the hydrogen discharge pipe.

[0010] As a further solution of the utility model: main pipelines are fixed inside the upper mounting block and the lower mounting block, and the two main pipelines are fixedly connected to the corresponding hydrogen injection pipe and the hydrogen exhaust pipe respectively, and multiple distribution pipelines are fixed on one side of the two main pipelines close to the tank body, one end of the multiple distribution pipelines is inserted into the tank body and extends into the separation cavity, and solenoid valves are installed on the multiple distribution pipelines.

[0011] As a further solution of the utility model: a refrigerator is installed on one side of the tank body, a refrigeration pipe is connected between the refrigerator and the tank body, and one end of the cooling pipe is fixedly connected to one end of the refrigeration pipe.

[0012] As a further solution of the utility model: a pressure relief valve is arranged on one side of the tank body, and a pressure relief pipe is connected between the pressure relief valve and the tank body.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. In the utility model, the structural strength of the inner liner is improved by setting reinforcing ribs, and the structural strength of the shell is improved by setting an outer shell and an inner shell. The inner liner is arranged in the shell. By combining the shell and the inner liner, the overall structural strength of the tank is improved, which is safe and explosion-proof, and has reliable quality.

[0015] 2. In the utility model, a plurality of reinforcing ribs are used to form separation cavities between each other. By setting separation cavities inside the inner tank, segmented storage of liquid hydrogen is realized, and the pressure of liquid hydrogen is distributed to each separation cavity. Compared with storing liquid hydrogen in the entire inner tank cavity, the pressure is smaller. At the same time, when the tank body shakes, liquid hydrogen will only shake in each separate separation cavity, and the shaking amplitude is smaller. Liquid hydrogen is less likely to evaporate and the loss is smaller. The impact force of liquid hydrogen on the inner wall of the inner tank when shaking is also reduced. Furthermore, partition plates are provided in the plurality of separation cavities. The setting of the partition plates The separation cavity can be further divided to form a smaller storage space, and a gap is left between the partition plate and the inner wall of the liner. Through this gap, on the one hand, the flow of liquid hydrogen will not be blocked. When the tank body shakes greatly, the liquid hydrogen can flow to one side along the gap between the partition plate and the inner wall of the liner, and the flow is relatively gentle, avoiding the problem of liquid hydrogen evaporation and aggravation of loss under severe shaking. On the other hand, liquid hydrogen can flow to one side when subjected to pressure shaking, and the pressure can be slowly released (that is, buffering) through its own flow, avoiding the formation of high pressure on the liner, thereby achieving the purpose of explosion-proof;

[0016] 3. In the utility model, a hollow tube is fixed inside the inner tank along the axial direction, and a plurality of through holes are evenly spaced on the inner walls on the upper and lower sides of the hollow tube. When the tank body is shaken, the liquid hydrogen flows to one side. When a large amount of liquid hydrogen flows into a certain separation cavity, the liquid hydrogen can flow into the hollow tube through the through hole and flow to both ends in the hollow tube, so that the excess liquid hydrogen can be sent to a relatively idle separation cavity, so that the amount of liquid hydrogen in each separation cavity is kept consistent, and the pressure of the liquid hydrogen on the tank body can be evenly distributed, the tank body can be protected, and the safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the tank body in the utility model.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the shell in the tank.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the tank body in the utility model.

[0022] Figure 5 It is a schematic diagram of the connection structure between the partition plate and the hollow tube in the tank body.

[0023] Notes on figure numbers: 1-tank body, 101-shell, 1011-outer shell, 1012-insulation layer, 1013-inner shell, 102-buffer layer, 103-liner, 2-pressure relief valve, 3-refrigeration machine, 4-refrigeration pipe, 5-pressure relief pipe, 6-upper mounting block, 7-hydrogen injection pipe, 8-lower mounting block, 9-hydrogen exhaust pipe, 10-main pipeline, 11-distribution pipeline, 12-reinforcement rib, 13-hollow tube, 131-through hole, 14-partition plate, 15-separation cavity, 16-cooling pipe. DETAILED DESCRIPTION

[0024] The following embodiments will be combined with the accompanying drawings to describe the utility model in detail. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0025] Example 1

[0026] See also Figure 1 In an embodiment of the utility model, a hydrogen transport storage tank includes a tank body 1, a pressure relief valve 2 is arranged on one side of the tank body 1, a pressure relief pipe 5 is connected between the pressure relief valve 2 and the tank body 1, when the internal pressure of the tank body 1 is too large, the internal pressure of the tank body can be released through the pressure relief pipe 5 and the pressure relief valve 2, a refrigerator 3 is installed on one side of the tank body 1, a refrigeration pipe 4 is connected between the refrigerator 3 and the tank body 1, the interior of the tank body is cooled by the refrigerator 3 and the refrigeration pipe 4, an upper mounting block 6 is fixed on the top of the tank body 1, and a hydrogen injection pipe 7 is fixed on the upper mounting block 6.

[0027] See also Figure 2 A lower mounting block 8 is fixed to the bottom of the tank body 1, a hydrogen discharge pipe 9 is fixed to the lower mounting block 8, sealing covers are provided on the hydrogen injection pipe 7 and the hydrogen discharge pipe 9, main pipelines 10 are fixed inside the upper mounting block 6 and the lower mounting block 8, the two main pipelines 10 are respectively fixedly connected to the corresponding hydrogen injection pipe 7 and the hydrogen discharge pipe 9, a plurality of distribution pipelines 11 are fixed to one side of the two main pipelines 10 close to the tank body 1, one end of the plurality of distribution pipelines 11 are inserted into the tank body 1, and solenoid valves are installed on the plurality of distribution pipelines 11.

[0028] See also Figure 2 , Figure 4The tank body 1 includes an external shell 101 and an inner liner 103 arranged inside the shell 101. A buffer layer 102 is arranged between the shell 101 and the inner liner 103. The buffer layer 102 is made of a composite material with thermal insulation and elasticity. The inner liner 103 can be protected by the buffer layer 102. A plurality of reinforcing ribs 12 are fixed at equal intervals on the upper and lower sides of the inner wall of the inner liner 103. The structural strength of the inner liner is improved by arranging the reinforcing ribs 12. Separation cavities 15 are formed between the plurality of reinforcing ribs 12. The separation cavities 15 are arranged inside the inner liner 103 to realize segmented storage of liquid hydrogen, and the pressure of the liquid hydrogen is distributed to each separation cavity. Compared with storing liquid hydrogen in the entire inner liner cavity, the pressure is smaller. At the same time, when the tank body shakes, the liquid hydrogen will only shake in each separate separation cavity, the shaking amplitude is smaller, the liquid hydrogen is less likely to evaporate, the loss is smaller, and the impact force of the liquid hydrogen on the inner wall of the inner liner when shaking is also reduced.

[0029] Please continue reading Figure 2 , Figure 4 , partition plates 14 are provided in multiple separation cavities 15, and gaps are left between multiple partition plates 14 and the inner wall of the liner 103. The setting of the partition plates can further divide the separation cavities into smaller storage spaces, and gaps are left between the partition plates and the inner wall of the liner. Through this gap, on the one hand, the flow of liquid hydrogen will not be blocked. When the tank body shakes with a large amplitude, the liquid hydrogen can flow to one side along the gap between the partition plate and the inner wall of the liner, and the flow is relatively gentle, avoiding the problem of liquid hydrogen evaporation and aggravating the loss under severe shaking. On the other hand, liquid hydrogen can flow to one side when subjected to pressure shaking, and can slowly release pressure (that is, buffer) through its own flow, avoiding the formation of high pressure on the liner, thereby achieving the purpose of explosion-proof. If the partition plate and the inner wall of the liner are closed, then each separation cavity will form a closed space, which is similar to an entire liner cavity, so that the buffering effect cannot be achieved.

[0030] Please continue reading Figure 2 , Figure 4 A hollow tube 13 is fixed inside the inner liner 103 along the axial direction, both ends of the hollow tube 13 are welded and fixed to the inner wall of the inner liner 103 , and a plurality of partition plates 14 are rotatably sleeved on the hollow tube 13 .

[0031] See also Figure 5A cooling tube 16 is fixed in the hollow tube 13, and one end of the cooling tube 16 is fixedly connected to one end of the refrigeration tube 4. A plurality of through holes 131 are evenly spaced on the inner walls of the upper and lower sides of the hollow tube 13. The liquid hydrogen in the tank body can enter the hollow tube 13 through the through holes 131. The refrigerator 3 pumps the refrigerant from the refrigeration tube 4 into the cooling tube 16. The liquid hydrogen in the hollow tube contacts and exchanges heat with the outer wall of the cooling tube 16 to cool the liquid hydrogen. Under low temperature conditions, the liquid hydrogen is not easy to volatilize. A through hole is opened on the hollow tube. When the tank body shakes, the liquid hydrogen flows to one side. When a large amount of liquid hydrogen flows into a certain separation cavity, the liquid hydrogen can flow into the hollow tube through the through hole 131 and flow to both ends in the hollow tube, so that the excess liquid hydrogen can be sent to the relatively idle separation cavity, so that the amount of liquid hydrogen in each separation cavity is consistent, and then the pressure of the liquid hydrogen on the tank body can be evenly distributed, the tank body can be protected, and the safety is higher.

[0032] Example 2

[0033] Based on Example 1, please refer to Figure 3 The shell 101 includes an outer shell 1011 and an inner shell 1013. The inner shell 1013 is fixed inside the outer shell 1011. An insulation layer 1012 is arranged between the outer shell 1011 and the inner shell 1013. The insulation layer 1012 is made of insulation material. In this embodiment, the insulation layer is made of phenolic foam material. By setting the insulation layer 1012, the inner liner 103 can be further insulated. At the same time, by setting the outer shell 1011 and the inner shell 1013, the structural strength of the shell 101 is improved, thereby improving the overall structural strength of the tank body 1.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydrogen transport storage tank, comprising a tank body (1), characterized in that: The tank body (1) comprises an external shell (101) and an inner liner (103) arranged inside the shell (101); a buffer layer (102) is arranged between the shell (101) and the inner liner (103); a plurality of reinforcing ribs (12) are fixed at equal intervals on the upper and lower sides of the inner wall of the inner liner (103); separation cavities (15) are formed between the plurality of reinforcing ribs (12); partition plates (14) are arranged in the plurality of separation cavities (15); and gaps are left between the plurality of partition plates (14) and the inner wall of the inner liner (103).

2. The hydrogen transport storage tank according to claim 1, characterized in that: The shell (101) comprises an outer shell (1011) and an inner shell (1013); the inner shell (1013) is fixed inside the outer shell (1011); and a heat-insulating layer (1012) is provided between the outer shell (1011) and the inner shell (1013).

3. The hydrogen transport storage tank according to claim 2, characterized in that: A hollow tube (13) is fixed inside the inner tank (103) along the axial direction, and a plurality of partition plates (14) are rotatably sleeved on the hollow tube (13). A plurality of through holes (131) are evenly spaced on the inner walls on the upper and lower sides of the hollow tube (13). A cooling tube (16) is fixed inside the hollow tube (13), and a gap is left between the cooling tube (16) and the inner wall of the hollow tube (13).

4. The hydrogen transport storage tank according to claim 3, characterized in that: An upper mounting block (6) is fixed on the top of the tank body (1), a hydrogen injection pipe (7) is fixed on the upper mounting block (6), a lower mounting block (8) is fixed on the bottom of the tank body (1), a hydrogen discharge pipe (9) is fixed on the lower mounting block (8), and sealing covers are provided on the hydrogen injection pipe (7) and the hydrogen discharge pipe (9).

5. The hydrogen transport storage tank according to claim 4, characterized in that: A main pipeline (10) is fixed inside the upper mounting block (6) and the lower mounting block (8), and the two main pipelines (10) are respectively fixedly connected to the corresponding hydrogen injection pipe (7) and the hydrogen discharge pipe (9). A plurality of distribution pipelines (11) are fixed on one side of the two main pipelines (10) close to the tank body (1), and one end of the plurality of distribution pipelines (11) is inserted into the tank body (1) and extends into the separation cavity (15), and solenoid valves are installed on the plurality of distribution pipelines (11).

6. The hydrogen transport storage tank according to claim 5, characterized in that: A refrigerator (3) is installed on one side of the tank body (1), a refrigeration pipe (4) is connected between the refrigerator (3) and the tank body (1), and one end of the cooling pipe (16) is fixedly connected to one end of the refrigeration pipe (4).

7. The hydrogen transport storage tank according to any one of claims 1 to 6, characterized in that: A pressure relief valve (2) is provided on one side of the tank body (1), and a pressure relief pipe (5) is connected between the pressure relief valve (2) and the tank body (1).

Images