Large organic liquid hydrogen storage device

Abstract

The invention discloses a large organic liquid hydrogen storage device. Comprising a tank body, a base is arranged at the bottom of the tank body, a restraint ring is fixedly connected to the top face of the base, a reinforcing ring is arranged on the tank body, and transfer assemblies and the like are arranged at the upper end and the lower end of the tank body. The dehydrogenation tank has the advantages that when the dehydrogenation process is carried out, the heat conduction pipe is communicated with the external conveying pipeline through the butt joint, high-temperature gas or liquid is input into the heat conduction pipe through the external conveying pipeline, the high-temperature fluid flows in the heat conduction pipe, heat carried by the high-temperature fluid is dissipated in the mounting cavity, the temperature in the tank body is increased, and the dehydrogenation effect is improved. Therefore, the temperature of the liquid can be raised. The hot air in the mounting cavity gradually flows into the heating box, the heating box heats the liquid pipe, and when the liquid in the tank body is guided out for the dehydrogenation process, the heating box intensively preheats the passing liquid at the position of the liquid pipe, so that the whole liquid is preheated, and the efficiency of the subsequent dehydrogenation process is higher.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen storage devices, in particular to a large-scale organic liquid hydrogen storage device. Background Art

[0002] The principle of liquid organic hydrogen storage technology (LOHC for short) is to achieve hydrogen storage (chemical bonding) through the reversible reaction and hydrogenation reaction of unsaturated liquid organic matter such as certain olefins, alkynes or aromatic hydrocarbons and hydrogen, and to release hydrogen through dehydrogenation reaction. The mass hydrogen storage density is 5%-10%, and the hydrogen storage capacity is large. The hydrogen storage material is liquid organic matter, which can be transported at room temperature and pressure, which is convenient and safe.

[0003] Unsaturated organic liquids such as olefins, alkynes, and aromatics can be used as hydrogen storage materials. However, considering the energy consumption, hydrogen storage capacity, hydrogen storage agent, and physical properties of the hydrogen storage process, aromatics, especially monocyclic aromatics, are preferred as hydrogen storage agents.

[0004] In the existing technology, there are still some problems to be solved in organic liquid hydrogen storage: low cycle efficiency; relatively harsh technical operating conditions, complex hydrogenation and dehydrogenation devices, high operating costs; dehydrogenation reactions need to be carried out at low pressure and high temperature, low reaction efficiency, and prone to side reactions, etc. At present, organic liquid hydrogen storage devices generally use liquid storage tanks, and current liquid storage tanks generally only store organic liquids, have no auxiliary effect on the subsequent dehydrogenation process, and cannot improve the efficiency of subsequent processes as needed. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the present invention provides a large-scale organic liquid hydrogen storage device, which has the advantages of being able to preheat the entire liquid, thereby making the subsequent dehydrogenation process more efficient.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solution: a large-scale organic liquid hydrogen storage device, comprising a tank body, a base is provided at the bottom of the tank body, a constraint ring is fixedly connected to the top surface of the base, a reinforcement ring is provided on the tank body, a transfer assembly is provided at both the upper and lower ends of the tank body, and a liquid pipe is provided at the top of the tank body;

[0009] A heating box is sleeved on the outside of the liquid pipe, an installation cavity is opened in the middle of the tank wall of the tank body, a plurality of fixing rings fixedly connected to the inner wall of the tank body are arranged in the installation cavity, a heat conducting pipe is spirally arranged in the installation cavity, and both ends of the heat conducting pipe are respectively fixedly connected with a butt joint;

[0010] An electric heating plate is arranged on the inner wall of the tank body, a wire is arranged at the bottom of the electric heating plate, a plurality of heat dissipation plates are arranged on the inner side of the electric heating plate, and through holes are opened on the heat dissipation plates.

[0011] Preferably, a fixing hole is provided on the base, and the tank body is arranged in a restraining ring.

[0012] Preferably, the reinforcement ring is arranged in the middle of the tank body, and the transfer assembly consists of a transfer seat and a buckle ring fixed to the outside of the tank body by bolts.

[0013] The above technical solution is adopted: the tank body is used to store hydrogenated organic liquids, and the tank body has a certain volume and can accommodate a large amount of organic liquid. The base at the bottom of the tank body provides support for the tank body to ensure the stability of the tank body when it is erected. The fixing holes opened on the base can be used with tools such as anchor bolts to fix the base to the foundation to achieve the fixation of the hydrogen storage device. The constraint ring on the base provides constraints for the tank body to prevent the tank body from tilting. The reinforcement ring strengthens the middle part of the tank body to improve the strength of the tank body. The transfer assembly can assist the tank body to be laid flat, which is convenient for transporting the tank body. The transfer assembly can also provide reinforcement for the top and bottom of the tank body to make the tank body stronger.

[0014] Preferably, a valve is provided on the liquid pipe, and the heating box is fixedly connected to the top of the tank body.

[0015] Preferably, the installation cavity divides the tank body into two layers, an inner layer and an outer layer, and a connecting plate fixedly connected to the inner and outer sides of the tank body is arranged therein.

[0016] The above technical solution is adopted: the liquid pipe is used to transport liquid to the tank or output the liquid in the tank, and the valve on it can control the opening and closing of the liquid pipe to prevent leakage of the tank. The heating box can heat the liquid pipe, and then heat the liquid flowing in the liquid pipe. The installation cavity provides installation space for the heat pipe, and a number of fixing rings provide installation support for the heat pipe. The heat pipe is spirally arranged in the installation cavity. When high-temperature fluid is passed into it, the heat on the fluid will be dissipated into the installation cavity.

[0017] Preferably, the installation cavity is communicated with the internal space of the heating box, and there are a plurality of fixing rings which are evenly arranged in the installation cavity.

[0018] Preferably, the heat conducting pipe is arranged in a fixing ring, and the two butt joints are symmetrically arranged on both sides of the liquid pipe.

[0019] Preferably, the butt joint and the top end of the liquid pipe are both provided with connecting flanges, and the wire passes through the tank body and is provided with a plug at the end.

[0020] The above technical solution is adopted: the heat in the installation cavity can heat the tank body, so that the temperature of the organic liquid in the tank body can be increased, which provides convenience for the subsequent dehydrogenation process, so that the organic liquid can heat up faster, thereby improving the dehydrogenation efficiency. The installation cavity is connected to the heating box so that the heat inside it can be transmitted to the heating box. When the liquid in the tank body is led out for the dehydrogenation process, the heating box centrally preheats the passing liquid at the position of the liquid pipe so that the entire liquid is preheated, thereby making the subsequent dehydrogenation process more efficient. The electric heating plate can also heat the liquid in the tank body. The heat dissipation plate transfers the heat of the electric heating plate to the inside of the liquid, so that the liquid in the middle of the tank body can also be heated, so that more liquid can be preheated.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides a large-scale organic liquid hydrogen storage device, which has the following beneficial effects:

[0023] 1. The large-scale organic liquid hydrogen storage device is provided with a heating box, an installation cavity, a fixing ring, a heat pipe, a joint and other structures. When the dehydrogenation process is carried out, the joint is used to connect the heat pipe with the external delivery pipeline, and a gas or liquid with a higher temperature is input to the heat pipe through the external delivery pipeline. The high-temperature fluid flows in the heat pipe, and the heat carried is dissipated in the installation cavity, so that the temperature in the tank body can be increased, and then the temperature of the liquid can be increased. The hot air in the installation cavity gradually flows into the heating box, and the heating box heats the liquid pipe. When the liquid in the tank body is led out for the dehydrogenation process, the heating box centrally preheats the passing liquid at the position of the liquid pipe, so that the entire liquid is preheated, thereby making the subsequent dehydrogenation process more efficient.

[0024] 2. The large-scale organic liquid hydrogen storage device can heat the liquid in the tank by arranging an electric heating plate in the tank body, and coordinating the arrangement of wires, heat sinks, through holes and other structures. The electric heating plate can also heat the liquid in the tank body, and the heat sink transfers the heat of the electric heating plate to the inside of the liquid, so that the liquid in the middle of the tank body can also be heated, so that more liquid can be preheated. The through holes allow the liquid to pass through the heat sink without affecting the normal flow of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a first-view structural schematic diagram of a large-scale organic liquid hydrogen storage device proposed by the present invention;

[0026] Figure 2 A second perspective structural schematic diagram of a large-scale organic liquid hydrogen storage device proposed by the present invention;

[0027] Figure 3 This is a schematic cross-sectional structure diagram of a large-scale organic liquid hydrogen storage device proposed by the present invention;

[0028] Figure 4This is a structural schematic diagram of the location of the heat transfer pipe of a large-scale organic liquid hydrogen storage device proposed by the present invention;

[0029] Figure 5 This is a structural schematic diagram of the location of the heat sink of a large-scale organic liquid hydrogen storage device proposed by the present invention.

[0030] In the figure: 1-tank body, 2-base, 3-restraint ring, 4-reinforcement ring, 5-transfer assembly, 6-liquid pipe, 7-heating box, 8-installation cavity, 9-fixing ring, 10-heat pipe, 11-joint, 12-electric heating plate, 13-wire, 14-heat sink, 15-through hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-5 A large-scale organic liquid hydrogen storage device comprises a tank body 1, a base 2 is arranged at the bottom of the tank body 1, a restraining ring 3 is fixedly connected to the top surface of the base 2, a reinforcing ring 4 is arranged on the tank body 1, a transfer assembly 5 is arranged at both the upper and lower ends of the tank body 1, and a liquid pipe 6 is arranged on the top of the tank body 1;

[0033] A heating box 7 is sleeved on the outside of the liquid pipe 6, and a mounting cavity 8 is opened in the middle of the tank wall of the tank body 1. A plurality of fixing rings 9 fixedly connected to the inner wall of the tank body 1 are arranged in the mounting cavity 8. A heat conducting pipe 10 is spirally arranged in the mounting cavity 8, and both ends of the heat conducting pipe 10 are respectively fixedly connected with a butt joint 11;

[0034] An electric heating plate 12 is arranged on the inner wall of the tank body 1 , a wire 13 is arranged at the bottom of the electric heating plate 12 , a plurality of heat sinks 14 are arranged on the inner side of the electric heating plate 12 , and through holes 15 are opened on the heat sinks 14 .

[0035] Embodiment 1: A fixing hole is provided on the base 2, and the tank body 1 is arranged in the restraint ring 3. The reinforcement ring 4 is arranged in the middle of the tank body 1, and the transfer assembly 5 is composed of a transfer seat and a buckle fixed to the outside of the tank body 1 by bolts. The tank body 1 is used to store hydrogenated organic liquids. The tank body 1 has a certain volume and can accommodate a large amount of organic liquid. The base 2 at the bottom of the tank body 1 provides support for the tank body 1 to ensure the stability of the tank body 1 when it is erected. The fixing holes provided on the base 2 can be used with tools such as anchor bolts to fix the base 2 to the foundation to achieve the fixation of the hydrogen storage device. The restraint ring 3 on the base 2 provides restraint for the tank body 1 to prevent the tank body 1 from tilting. The reinforcement ring 4 strengthens the middle part of the tank body 1 to improve the strength of the tank body 1. The transfer assembly 5 can assist the tank body 1 to be laid flat, which is convenient for transporting the tank body 1. The transfer assembly 5 can also provide reinforcement for the top and bottom of the tank body 1 to make the tank body 1 stronger.

[0036] Embodiment 2: A valve is provided on the liquid pipe 6, and the heating box 7 is fixedly connected to the top of the tank body 1. The installation cavity 8 divides the tank body 1 into two layers, an inner layer and an outer layer, and a connecting plate fixedly connected to the inner and outer sides of the tank body 1 is provided therein. The liquid pipe 6 is used to transport liquid to the tank body 1 or to output the liquid in the tank body 1. The valve thereon can control the opening and closing of the liquid pipe 6 to prevent leakage of the tank body 1. The heating box 7 can heat the liquid pipe 6, and further heat the liquid flowing in the liquid pipe 6. The installation cavity 8 provides an installation space for the heat conducting pipe 10, and a plurality of fixing rings 9 provide installation support for the heat conducting pipe 10. The heat conducting pipe 10 is spirally arranged in the installation cavity 8. When a high-temperature fluid is passed into the installation cavity 8, the heat on the fluid will be dissipated into the installation cavity 8.

[0037] Embodiment 3: The installation cavity 8 is connected to the internal space of the heating box 7, and there are several fixing rings 9 which are evenly arranged in the installation cavity 8. The heat conducting pipe 10 is arranged in the fixing ring 9, and the two docking joints 11 are symmetrically arranged on both sides of the liquid pipe 6. The tops of the docking joints 11 and the liquid pipe 6 are provided with connecting flanges, and the wire 13 passes through the tank body 1 and is provided with a plug at the end. The heat in the installation cavity 8 can heat the tank body 1, so that the temperature of the organic liquid in the tank body 1 can be increased, which facilitates the subsequent dehydrogenation process, enables the organic liquid to heat up faster, and thus improves the dehydrogenation efficiency. The installation cavity 8 is connected to the heating box 7, so that the heat in it can be transmitted to the heating box 7. When the liquid in the tank body 1 is led out for the dehydrogenation process, the heating box 7 centrally preheats the passing liquid at the position of the liquid pipe 6, so that the entire liquid is preheated, thereby making the subsequent dehydrogenation process more efficient. The electric heating plate 12 can also heat the liquid in the tank body 1, and the heat sink 14 transfers the heat of the electric heating plate 12 to the inside of the liquid, so that the liquid in the middle of the tank body 1 can also be heated, so that more liquid can be preheated.

[0038] When in use, the base 2 is fixed to the foundation by using tools such as anchor bolts in conjunction with the fixing holes on the base 2, and then the tank body 1 is placed in the restraint ring 3 to fix the tank body 1. The external pipeline is connected to the liquid pipe 6, the organic liquid is added to the tank body 1, and hydrogen is added to the tank body 1 using the hydrogenation equipment. Then the valve can be closed to store the hydrogen in the organic liquid. When the dehydrogenation process is required, the heat pipe 11 is connected to the external delivery pipeline by the docking joint 11, and a gas or liquid with a higher temperature is input to the heat pipe 11 through the external delivery pipeline. The high-temperature fluid flows in the heat pipe 11, and the heat carried is dissipated in the installation cavity 8, so that the temperature in the tank body 1 can be increased, and then the temperature of the liquid can be increased. The hot air in the installation cavity 8 gradually flows into the heating box 7, and the heating box 7 heats the liquid pipe 6. And the electric heating plate 12 is started, the electric heating plate 12 heats the liquid in the tank body 1, and the heat dissipation plate 14 distributes the heat to the inside of the tank body 1, so that more liquid is preheated. The preheated liquid can effectively improve the dehydrogenation efficiency during the dehydrogenation process.

[0039] In summary, this large-scale organic liquid hydrogen storage device:

[0040] 1. The large-scale organic liquid hydrogen storage device is provided with a heating box 7, an installation cavity 8, a fixing ring 9, a heat pipe 10, a joint 11 and other structures. When the dehydrogenation process is carried out, the heat pipe 10 is connected to the external delivery pipeline by using the joint 11, and a gas or liquid with a relatively high temperature is input to the heat pipe 10 through the external delivery pipeline. The high-temperature fluid flows in the heat pipe 10, and the heat carried is dissipated in the installation cavity 8, so that the temperature in the tank body 1 can be increased, and then the temperature of the liquid can be increased. The hot air in the installation cavity 8 gradually flows into the heating box 7, and the heating box 7 heats the liquid pipe 6. When the liquid in the tank body 1 is led out for the dehydrogenation process, the heating box 7 centrally preheats the passing liquid at the position of the liquid pipe 6, so that the entire liquid is preheated, thereby making the subsequent dehydrogenation process more efficient.

[0041] 2. The large-scale organic liquid hydrogen storage device, by arranging the electric heating plate 12 in the tank body 1, and coordinating the wire 13, the heat sink 14, the through hole 15 and other structures, the electric heating plate 12 can also heat the liquid in the tank body 1, and the heat sink 14 transfers the heat of the electric heating plate 12 to the inside of the liquid, so that the liquid in the middle of the tank body 1 can also be heated, so that more liquid can be preheated. The through hole 15 allows the liquid to pass through the heat sink 14 without affecting the normal flow of the liquid.

[0042] 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. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] 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. A large-scale organic liquid hydrogen storage device, characterized in that: The tank body (1) comprises a tank body (1), wherein a base (2) is arranged at the bottom of the tank body (1), a restraining ring (3) is fixedly connected to the top surface of the base (2), a reinforcing ring (4) is arranged on the tank body (1), transfer assemblies (5) are arranged at the upper and lower ends of the tank body (1), and a liquid pipe (6) is arranged at the top of the tank body (1); A heating box (7) is sleeved on the outside of the liquid pipe (6); a mounting cavity (8) is provided in the middle of the tank wall of the tank body (1); a plurality of fixing rings (9) fixedly connected to the inner wall of the tank body (1) are arranged in the mounting cavity (8); a heat conducting pipe (10) is spirally arranged in the mounting cavity (8); and two ends of the heat conducting pipe (10) are respectively fixedly connected to docking joints (11); An electric heating plate (12) is arranged on the inner wall of the tank body (1), a wire (13) is arranged at the bottom of the electric heating plate (12), a plurality of heat dissipation plates (14) are arranged on the inner side of the electric heating plate (12), and through holes (15) are opened on the heat dissipation plates (14).

2. A large-scale organic liquid hydrogen storage device according to claim 1, characterized in that: The base (2) is provided with a fixing hole, and the tank body (1) is arranged in a restraining ring (3).

3. A large-scale organic liquid hydrogen storage device according to claim 2, characterized in that: The reinforcement ring (4) is arranged in the middle of the tank body (1), and the transfer assembly (5) is composed of a transfer seat and a buckle ring fixed to the outside of the tank body (1) by bolts.

4. A large-scale organic liquid hydrogen storage device according to claim 3, characterized in that: The liquid pipe (6) is provided with a valve, and the heating box (7) is fixedly connected to the top of the tank body (1).

5. A large-scale organic liquid hydrogen storage device according to claim 4, characterized in that: The installation cavity (8) divides the tank body (1) into two layers, an inner layer and an outer layer, and is provided with a connecting plate fixedly connected to the inner and outer sides of the tank body (1).

6. A large-scale organic liquid hydrogen storage device according to claim 5, characterized in that: The installation cavity (8) is communicated with the internal space of the heating box (7), and there are a plurality of fixing rings (9) which are evenly arranged in the installation cavity (8).

7. A large-scale organic liquid hydrogen storage device according to claim 6, characterized in that: The heat conducting pipe (10) is arranged in the fixing ring (9), and the two butt joints (11) are symmetrically arranged on both sides of the liquid pipe (6).

8. A large-scale organic liquid hydrogen storage device according to claim 7, characterized in that: The top ends of the butt joint (11) and the liquid pipe (6) are both provided with connection flanges, and the wire (13) passes through the tank body (1) and is provided with a plug at the end.

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