Hydrogen-electricity conversion system based on solid hydrogen storage material

Abstract

According to the hydrogen-electricity conversion system based on the solid-state hydrogen storage material, in the system, a hydrogen release tank is a packaging unit for packaging the solid-state hydrogen storage material, a liquid-phase buffer tank contains water, the liquid-phase buffer tank is connected with the hydrogen release tank, and the solid-state hydrogen storage material is stored in the liquid-phase buffer tank. The water adding pump is connected with the liquid-phase buffer tank so as to inject water in the liquid-phase buffer tank into the hydrogen release tank to complete a hydrolysis reaction to generate hydrogen; the washing gas is connected with the hydrogen release tank so as to remove impurities from small solid particles and part of water vapor in the hydrogen; the hydrogen cooler is connected with the scrubber tank to cool the hydrogen; the water separator is connected with the hydrogen cooler so as to separate water vapor in the hydrogen; a fuel cell system is connected to the water separator to generate power based on the hydrogen. The system is stable in reaction and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of solid hydrogen storage, in particular to a hydrogen-electric conversion system based on solid hydrogen storage materials. Background Art

[0002] The existing hydrogen-electric conversion technology mainly uses gas cylinders for storage. Hydrogen is stored in small high-pressure gas cylinders, and then the hydrogen is controlled within the pressure range acceptable to the fuel cell through a pressure control device. Finally, the conversion from hydrogen to electric energy is completed through the fuel cell. This technical path is the most widespread technology in the current market. Due to the safety issue of high-pressure hydrogen, the use safety has always been a factor restricting its development. The existing hydrogen-electric conversion system is a system based on high-pressure hydrogen storage tanks, and its safety in use is worrying.

[0003] The above information disclosed in the background art is only used to enhance the understanding of the background of the utility model, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a hydrogen-electric conversion system based on solid hydrogen storage materials, which can complete hydrogen-electric conversion under normal temperature and slightly positive pressure working conditions, and is safer than the high-pressure hydrogen storage system.

[0005] The purpose of the utility model is achieved through the following technical solutions.

[0006] A hydrogen-electric conversion system based on solid hydrogen storage materials includes,

[0007] A hydrogen release system, which includes,

[0008] A hydrogen release tank, which is an encapsulation unit for encapsulating solid hydrogen storage materials,

[0009] A liquid-phase buffer tank, which contains water, and the liquid-phase buffer tank is connected to the hydrogen release tank,

[0010] A water injection pump, which is connected to the liquid-phase buffer tank to inject the water in the liquid-phase buffer tank into the hydrogen release tank to complete the hydrolysis reaction to generate hydrogen;

[0011] A gas scrubber, which is connected to the hydrogen release tank to remove solid small particles and part of the water vapor in the hydrogen;

[0012] A hydrogen cooler, which is connected to the gas scrubber to cool the hydrogen;

[0013] A water separator, which is connected to the hydrogen cooler to separate the water vapor in the hydrogen;

[0014] A fuel cell system that is connected to the water separator to generate electricity based on the hydrogen gas.

[0015] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, a reaction heat dissipation system is further included, which includes,

[0016] A water cooler, one end of which is connected to the hydrogen release tank, and the other end is connected to the liquid-phase buffer tank,

[0017] A circulating water pump, one end of which is connected to the hydrogen release tank, and the other end is connected to the liquid-phase buffer tank. The cooling water circuit of the circulating water pump, the liquid-phase buffer tank, the hydrogen release tank, and the water cooler form a water cooling circulation circuit. The circulating water pump pumps the water in the liquid-phase buffer tank into the cooling water circuit of the hydrogen release tank to cool the reaction water in the hydrogen release tank and circulate it.

[0018] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the reaction heat dissipation system and the hydrogen gas cooler form a heat dissipation system.

[0019] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the fuel cell system includes a stack that generates electricity based on the hydrogen gas and a control system for controlling the output power and hydrogen gas pressure of the stack.

[0020] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the hydrogen release tank has a cylindrical structure.

[0021] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the hydrogen release tank is provided with a plurality of arrays of reaction containers for accommodating solid-state hydrogen storage materials, a water channel for communicating with the liquid-phase buffer tank to inject water, and a cooling water circuit for cooling the reaction containers.

[0022] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the cooling water circuit includes a cooling water jacket that wraps the reaction containers.

[0023] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the cooling water jacket includes a spiral metal water pipe, and the metal water pipe is threadedly connected to the outer wall surface of the reaction container to wrap the reaction container.

[0024] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the outer wall surface of the reaction container is provided with a recess for cooperating with the metal water pipe.

[0025] In the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the hydrogen release tank is provided with a temperature sensor for measuring the temperature.

[0026] Compared with the prior art, the beneficial effects of the present utility model are:

[0027] The hydrogen production material by hydrolysis of the present utility model belongs to irreversible hydrogen storage materials. It stores hydrogen in the form of compounds and generates high-purity hydrogen through hydrolysis reactions, which is suitable for on-site hydrogen production at the hydrogen usage site, and the obtained hydrogen can be used as the hydrogen source for hydrogen fuel cells. The hydrogen production material by hydrolysis is easy to store, relatively safe, convenient for storage and transportation. The hydrolysis solid hydrogen storage material has a wide range of reaction conditions and relatively low requirements for the reaction water. To ensure the smooth progress of the reaction, since the hydrolysis reaction is an exothermic reaction and the large amount of heat generated by the reaction is the key factor hindering the reaction, the reaction rate is controlled by controlling the reaction temperature, so as to maintain the reaction pressure within a controllable range, greatly increasing the safety during the hydrogen-electricity conversion process.

[0028] The above description is only an overview of the technical solution of the present utility model. In order to make the technical means of the present utility model clearer and to the extent that those skilled in the art can implement it according to the content of the specification, and in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following takes the specific embodiments of the present utility model as examples for illustration. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] By reading the detailed description of the preferred specific embodiments below, various other advantages and benefits of the present utility model will become clear to those of ordinary skill in the art. The drawings in the specification are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. And throughout the drawings, the same reference numerals are used to represent the same components.

[0030] In the drawings:

[0031] Figure 1 is a schematic structural diagram of the hydrogen-electricity conversion system based on solid hydrogen storage materials of the present utility model;

[0032] Figure 2 is a schematic structural diagram of the hydrogen release tank of the hydrogen-electricity conversion system based on solid hydrogen storage materials of the present utility model.

[0033] The following further explains the present utility model in conjunction with the drawings and embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although specific embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0035] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art should understand that technicians may use different terms to refer to the same component. The specification and claims do not use the difference in terms as a way to distinguish components, but use the difference in the functions of components as the criterion for distinction. As used throughout the specification and claims, the term "comprising" or "including" is an open-ended term and should be interpreted as "including but not limited to". The subsequent description in the specification is the preferred embodiment for implementing the present invention, but the description is for the purpose of the general principles of the specification and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the scope defined by the appended claims.

[0036] For ease of understanding of the embodiments of the present invention, the following will further explain with specific embodiments as examples in conjunction with the accompanying drawings, and each accompanying drawing does not constitute a limitation on the embodiments of the present invention.

[0037] For better understanding, as Figures 1 to 2 shown, a hydrogen-electric conversion system based on solid-state hydrogen storage materials includes

[0038] a hydrogen release system, which includes

[0039] a hydrogen release tank 1, which is an encapsulation unit for encapsulating solid-state hydrogen storage materials,

[0040] a liquid-phase buffer tank 2, which contains water, and the liquid-phase buffer tank 2 is connected to the hydrogen release tank 1,

[0041] a water injection pump 3, which is connected to the liquid-phase buffer tank 2 to inject the water in the liquid-phase buffer tank 2 into the hydrogen release tank 1 to complete the hydrolysis reaction to generate hydrogen;

[0042] a gas washing tank 4, which is connected to the hydrogen release tank 1 to remove solid particles and part of the water vapor in the hydrogen;

[0043] a hydrogen cooler 5, which is connected to the gas washing tank 4 to cool the hydrogen;

[0044] a water separator 6, which is connected to the hydrogen cooler 5 to separate the water vapor in the hydrogen;

[0045] A fuel cell system 7, which is connected to the water separator 6 to generate electricity based on the hydrogen gas.

[0046] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, it further includes a reaction heat dissipation system, which includes

[0047] A water cooler 8, one end of which is connected to the hydrogen release tank 1 and the other end is connected to the liquid-phase buffer tank 2.

[0048] A circulation water pump 9, one end of which is connected to the hydrogen release tank 1 and the other end is connected to the liquid-phase buffer tank 2. The cooling water circuit of the circulation water pump 9, the liquid-phase buffer tank 2, the hydrogen release tank 1 and the water cooler 8 form a water cooling circulation loop. The circulation water pump 9 pumps the water in the liquid-phase buffer tank 2 into the cooling water circuit of the hydrogen release tank 1 to cool the reaction water in the hydrogen release tank 1 and circulate it.

[0049] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the reaction heat dissipation system and the hydrogen gas cooler 5 form a heat dissipation system.

[0050] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the fuel cell system 7 includes a stack for generating electricity based on the hydrogen gas and a control system for controlling the output power and hydrogen gas pressure of the stack.

[0051] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the hydrogen release tank 1 has a cylindrical structure.

[0052] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the hydrogen release tank 1 is provided with a plurality of arrays of reaction containers 10 for accommodating solid-state hydrogen storage materials, a water channel for connecting to the liquid-phase buffer tank 2 to inject water, and a cooling water circuit for cooling the reaction containers 10.

[0053] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the cooling water circuit includes a cooling water jacket that wraps the reaction container 10.

[0054] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the cooling water jacket includes a spiral metal water pipe, and the metal water pipe is threadedly connected to the outer wall surface of the reaction container 10 to wrap the reaction container 10.

[0055] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the outer wall surface of the reaction container 10 is provided with a recess for mating with the metal water pipe.

[0056] In a preferred embodiment of the hydrogen-electric conversion system based on solid-state hydrogen storage materials, the hydrogen release tank 1 is provided with a temperature sensor for measuring temperature.

[0057] In one embodiment, a hydrogen-electric conversion system based on solid-state hydrogen storage materials consists of a hydrogen release system, a heat dissipation system, a hydrogen purification system, and a fuel cell system 7. The hydrogen release system is composed of a hydrogen release tank 1, a liquid-phase buffer tank 2, and a water injection pump 3. The hydrogen release tank 1 adopts a packaging unit design, and the solid-state hydrogen storage materials are pre-packaged in the hydrogen release tank 1. Water in the liquid-phase buffer tank 2 is injected into the hydrogen release tank 1 through the water injection pump 3, and the water undergoes a hydrolysis reaction with the solid-state hydrogen storage materials in the hydrogen release tank 1 to produce hydrogen. The heat dissipation system is divided into a hydrogen heat dissipation system and a reaction heat dissipation system. The hydrogen heat dissipation system consists of a hydrogen cooler 5. Hydrogen enters the hydrogen cooler 5, and the cooler dissipates heat from the hydrogen. The residual water vapor in the hydrogen is cooled to form small droplets and enters the backend system. The reaction heat dissipation system consists of a water cooler 8 and a circulation water pump 9. Cooling water is pumped by the circulation water pump 9 from the water in the liquid-phase buffer tank 2 into the cooling water circuit of the hydrogen release tank 1 to cool the reaction water in the hydrogen release tank 1 and ensure the stable progress of the hydrogen release reaction. The hydrogen purification system consists of a scrubbing tank 4 and a water separator 6. The hydrogen generated by the reaction in the hydrogen release tank 1 enters the scrubbing tank 4 to remove solid particles and some water vapor in the hydrogen. The hydrogen after impurity removal enters the hydrogen cooler 5 to cool the hydrogen. The remaining water vapor in the hydrogen condenses into droplets and enters the water separator 6 along with the hydrogen. The droplets are separated in the water separator 6, thus achieving the purpose of hydrogen purification. The fuel cell system 7 consists of a stack and a control system. Hydrogen enters the stack system for power generation, and the control of its output power and hydrogen pressure is completed by the control system. During specific use, the solid-state hydrogen storage materials are sealed inside the hydrogen release tank 1, and the tank lid is covered to ensure the sealing of the tank body; water is added to the liquid-phase buffer tank 2; the water injection pump 3 is started to inject the water in the liquid-phase buffer tank 2 into the hydrogen release tank 1 for hydrolysis hydrogen release reaction; the circulation water pump 9 is started to inject the water in the liquid-phase buffer tank 2 into the cooling water jacket of the hydrogen release tank 1 to cool the internal reaction water. The cooling water flows out from the cooling water outlet of the water jacket of the hydrogen release tank 1 and enters the water cooler 8, and the cooling water flowing out from the water cooler 8 enters the liquid-phase buffer tank 2 for circulating cooling use; the hydrogen generated by the reaction in the hydrogen release tank 1 enters the scrubbing tank 4 to remove solid particles and some water vapor in the hydrogen. The hydrogen after impurity removal enters the hydrogen cooler 5 to cool the hydrogen. The remaining water vapor in the hydrogen condenses into droplets and enters the water separator 6 along with the hydrogen. The droplets are separated in the water separator 6 to complete the purification of hydrogen. The purified hydrogen enters the fuel cell system 7 for power generation, and the control of the power generation and the hydrogen amount entering the fuel cell is completed by the stack control system to achieve the power output required externally.

[0058] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are merely examples and not limitations, and it cannot be considered that these advantages, benefits, effects, etc. are essential for each embodiment of the present application. Additionally, the specific details disclosed above are only for the purposes of illustration and easy understanding, and not for limitation. These details do not limit the present application to necessarily implementing with the above specific details.

[0059] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub - combinations thereof.

Claims

1. A hydrogen-electric conversion system based on solid-state hydrogen storage materials, characterized in that, It includes, a hydrogen release system, which includes, a hydrogen release tank, which is an encapsulation unit for encapsulating solid hydrogen storage materials, a liquid-phase buffer tank, which contains water, and the liquid-phase buffer tank is connected to the hydrogen release tank, a water injection pump, which is connected to the liquid-phase buffer tank to inject the water in the liquid-phase buffer tank into the hydrogen release tank to complete the hydrolysis reaction to generate hydrogen; a gas scrubbing tank, which is connected to the hydrogen release tank to remove solid particles and some water vapor in the hydrogen; a hydrogen cooler, which is connected to the gas scrubbing tank to cool the hydrogen; a water separator, which is connected to the hydrogen cooler to separate the water vapor in the hydrogen; a fuel cell system, which is connected to the water separator to generate electricity based on the hydrogen.

2. The hydrogen-electric conversion system based on solid-state hydrogen storage materials according to claim 1, characterized in that, It further includes a reaction heat dissipation system, which includes, a water cooler, one end of which is connected to the hydrogen release tank and the other end is connected to the liquid-phase buffer tank, a circulation water pump, one end of which is connected to the hydrogen release tank and the other end is connected to the liquid-phase buffer tank. The cooling water circuit of the circulation water pump, the liquid-phase buffer tank, the hydrogen release tank and the water cooler forms a water cooling circulation circuit, and the circulation water pump pumps the water in the liquid-phase buffer tank into the cooling water circuit of the hydrogen release tank to cool the reaction water in the hydrogen release tank and circulate it.

3. The hydrogen-electric conversion system based on solid-state hydrogen storage materials according to claim 2, characterized in that, The reaction heat dissipation system and the hydrogen cooler form a heat dissipation system.

4. The hydrogen-electric conversion system based on solid-state hydrogen storage materials according to claim 1, wherein, The fuel cell system includes a stack for generating electricity based on the hydrogen and a control system for controlling the output power and hydrogen pressure of the stack.

5. The hydrogen-electric conversion system based on solid-state hydrogen storage materials according to claim 1, characterized in that The hydrogen release tank has a cylindrical structure.

6. The hydrogen-electric conversion system based on solid-state hydrogen storage materials according to claim 1, wherein Inside the hydrogen release tank, there are multiple arrays of reaction vessels for accommodating solid hydrogen storage materials, water channels for connecting and injecting water from the liquid-phase buffer tank, and cooling water circuits for cooling the reaction vessels.

7. The hydrogen-electric conversion system based on solid-state hydrogen storage materials according to claim 6, characterized in that, The cooling water circuit includes a cooling water jacket that wraps the reaction vessel.

8. The hydrogen-electric conversion system based on solid-state hydrogen storage materials according to claim 7, characterized in that The cooling water jacket includes a spiral metal water pipe, and the metal water pipe is threadedly connected to the outer wall surface of the reaction vessel to wrap the reaction vessel.

9. The hydrogen-electric conversion system based on a solid-state hydrogen storage material according to claim 8, wherein The outer wall surface of the reaction vessel is provided with recesses that cooperate with the metal water pipe.

10. The hydrogen-electric conversion system based on solid-state hydrogen storage materials according to claim 1, wherein, The hydrogen release tank is provided with a temperature sensor for measuring temperature.

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