Architecture design system and working method of hydrogen storage and management module

Abstract

The invention discloses an architecture design system of a hydrogen storage and management module and a working method. The system comprises a gas cylinder group, a pressure sensor group and the like, the hydrogen inlet is connected with external hydrogen production equipment, the hydrogen inlet is connected with a four-way connector through a filter, the four-way connector is connected with an inlet pressure sensor, a buffer tank and a three-way connector, two remaining connectors of the three-way connector are connected with an air inlet electromagnetic valve and a one-way valve respectively, and the one-way valve is connected with a straight-through electromagnetic valve; the pressure stabilizing tank is connected behind the straight-through electromagnetic valve; a three-way joint is connected behind the air inlet electromagnetic valve and is respectively connected with a hydrogen inlet of the hydrogen compressor and the recovery electromagnetic valve, the recovery electromagnetic valve is connected behind the surge tank, a hydrogen outlet of the hydrogen compressor is connected with the hydrogen storage tank, an outlet of the hydrogen storage tank is connected with the outlet electromagnetic valve, the outlet electromagnetic valve is connected behind the surge tank, and the surge tank is connected with the hydrogen outlet. The device has four working modes, and the problem that hydrogen flow between hydrogen production equipment and hydrogen using equipment is unbalanced is solved.

Description

Technical Field

[0001] The present invention belongs to the field of new energy technology, and specifically relates to an architecture design system and a working method of a hydrogen storage and management module. Background Art

[0002] Hydrogen energy is an important energy component for the future human society to move towards a low-carbon society. The production, storage and transportation of hydrogen are important components of hydrogen energy technology and are also the main technical bottlenecks. The transportation cost of hydrogen mainly depends on the transportation distance. For hydrogen users, long-distance hydrogen transportation will bring very high transportation costs. Some places that need to use hydrogen frequently have also begun to configure hydrogen production equipment to achieve real-time production and use of hydrogen, but in this scenario, the amount of hydrogen produced and the amount of hydrogen used are often not equal in real time. It is often necessary to ensure that the amount of hydrogen produced is higher than the amount of hydrogen used, resulting in hydrogen waste. Therefore, there is an urgent need for a simple and efficient hydrogen storage and supply management device to achieve a real-time balance between hydrogen production and hydrogen consumption.

[0003] In existing hydrogen storage and management related technologies, the detailed architecture and working mode of the hydrogen storage system are usually not taken into consideration.

[0004] Chinese patent CN108716614B uses a hydrogen compressor to compress hydrogen and store it in a hydrogen storage tank of a hydrogen storage system, and then releases the stored hydrogen from the hydrogen storage tank through a hydrogenation system. Chinese patent CN110601192B emphasizes that the designed hydrogen storage system stores hydrogen produced by electrolysis of water and the channel includes a gas channel for supplying hydrogen to the fuel cell system and a related control system, but the patent does not explain the specific structure and control method inside the hydrogen storage system, and cannot guarantee feasibility. Chinese patent CN111412380B discloses an integrated system for hydrogen production, storage, use and transportation, wherein the hydrogen storage system includes a gaseous hydrogen storage system and a solid-state hydrogen storage system, and the gaseous hydrogen storage system is directly connected to the hydrogen production equipment and the fuel cell through a pipeline to achieve the integration of hydrogen production, storage and use, but the patent also does not introduce the implementation details of the gaseous hydrogen storage system and how to achieve a balance between hydrogen production and use inside it, and also cannot guarantee the feasibility of engineering applications. Chinese patent CN114381761B discloses a sustainable hydrogen supply device, whose internal hydrogen storage system consists of a hydrogen storage tank and a temperature control device. The hydrogen storage system uses metal hydrides to store hydrogen and can store excess hydrogen generated by electrolysis. The invention only connects a hydrogen storage tank in parallel at the outlet of the system to achieve hydrogen storage and controllable release, and does not provide a hydrogen storage flow control module, making it difficult to effectively regulate the hydrogen storage amount.

[0005] The above patents all regard the hydrogen storage system as part of the overall system, but do not provide a detailed design plan for the hydrogen storage system, nor do they elaborate on how to achieve an effective balance between hydrogen production and release, which greatly reduces the feasibility of the engineering application of the invention. Summary of the invention

[0006] The purpose of the present invention is to provide an architecture design system and working method of a hydrogen storage and management module to solve the problem of unbalanced hydrogen flow between hydrogen production equipment and hydrogen use equipment.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] An architecture design system for a hydrogen storage and management module, including a gas cylinder group, a pressure sensor group, a valve group, a hydrogen compressor and a pipeline system;

[0009] The gas cylinder group includes a buffer tank, a hydrogen storage tank and a surge tank; the pressure sensor group includes an inlet pressure sensor, a hydrogen storage pressure sensor and an outlet pressure sensor; the inlet pressure sensor is integrated on the hydrogen inlet position pipeline, and the inlet pressure sensor is used to monitor the gas pressure of the buffer tank; the hydrogen storage pressure sensor is integrated on the interface reserved on the tank wall of the hydrogen storage tank, and is used to monitor the gas pressure in the hydrogen storage tank; the outlet pressure sensor is installed at the hydrogen inlet of the surge tank or on the interface reserved on the tank wall of the surge tank, and is used to monitor the gas pressure of the surge tank; the valve group includes an intake solenoid valve, a straight-through solenoid valve, a recovery solenoid valve and an outlet solenoid valve; the pipeline system includes a stainless steel hydrogen pipeline and a three-way joint and a four-way joint;

[0010] The hydrogen inlet is connected to an external hydrogen production equipment. The hydrogen input from the outside first passes through a filter and then enters a four-way joint. The two side interfaces of the four-way joint are connected to an inlet pressure sensor and a buffer tank; a remaining interface of the four-way joint is connected to a three-way joint through a pipeline, and the two remaining interfaces of the three-way joint are respectively connected to an intake solenoid valve and a one-way valve, and a straight-through solenoid valve is connected behind the one-way valve; a pressure-stabilizing tank is connected behind the straight-through solenoid valve; a three-way joint is connected behind the intake solenoid valve, and the remaining two interfaces of the three-way joint are respectively connected to the hydrogen inlet and a recovery solenoid valve of the hydrogen compressor, and the recovery solenoid valve is connected to the pressure-stabilizing tank, the hydrogen outlet of the hydrogen compressor is connected to a hydrogen storage tank, the outlet of the hydrogen storage tank is connected to an outlet solenoid valve, the outlet solenoid valve is connected to a pressure-stabilizing tank, and the pressure-stabilizing tank is connected to the hydrogen outlet.

[0011] A further improvement of the present invention is that the upper design limit of the pressure of the buffer tank is the same as the upper design limit of the pressure stabilizing tank, and both are higher than the inlet hydrogen pressure and the outlet hydrogen pressure.

[0012] A further improvement of the present invention is that the design upper limit of the pressure of the hydrogen storage tank is related to the hydrogen storage capacity requirement.

[0013] A further improvement of the present invention is that the hydrogen compressor is an oil-free hydrogen compressor, which pressurizes the low-pressure hydrogen at the compressor inlet and outputs it from the compressor outlet.

[0014] A further improvement of the present invention is that a hydrogen input interface is provided at the hydrogen inlet.

[0015] A further improvement of the present invention is that a hydrogen output interface is provided at the hydrogen outlet.

[0016] A working method of an architecture design system for a hydrogen storage and management module, comprising:

[0017] In pure hydrogen storage mode, the input hydrogen is pressurized and stored; at this time, the air intake solenoid valve is opened, and the straight-through solenoid valve, recovery solenoid valve and outlet solenoid valve are all closed; the hydrogen compressor works to extract the inlet hydrogen in the buffer tank and store it under pressure in the hydrogen storage tank.

[0018] A further improvement of the present invention is that it also includes:

[0019] In pure hydrogen release mode, hydrogen is provided to external hydrogen-using equipment; at this time, the outlet solenoid valve is open, and the air inlet solenoid valve, the through solenoid valve and the recovery solenoid valve are all closed; the hydrogen stored in the hydrogen storage tank is directly supplied to the pressure-stabilizing tank to ensure the pressure of the pressure-stabilizing tank is stable, and the pressure-stabilizing tank provides a hydrogen gas source with stable pressure to external hydrogen-using equipment.

[0020] A further improvement of the present invention is that it also includes:

[0021] In the hydrogen production surplus mode, this mode has both hydrogen input and hydrogen output, but the flow rate of hydrogen input is higher than the flow rate of hydrogen output; at this time, the straight-through solenoid valve and the recovery solenoid valve are open, and the air inlet solenoid valve and the outlet solenoid valve are closed; the hydrogen entering from the module inlet flows directly to the pressure-regulating tank, and flows from the hydrogen output interface of the pressure-regulating tank to the hydrogen-using equipment; the hydrogen input flow rate is higher than the hydrogen output flow rate, and the pressure in the pressure-regulating tank will gradually increase; when the pressure is greater than the set value, the hydrogen compressor is started to extract the hydrogen in the pressure-regulating tank and store it in the hydrogen storage tank.

[0022] A further improvement of the present invention is that it also includes:

[0023] In the insufficient hydrogen production mode, there is both hydrogen input and hydrogen output in this mode, but the flow rate of hydrogen input is less than the flow rate of hydrogen output; at this time, the straight-through solenoid valve and the outlet solenoid valve are open, and the air intake solenoid valve and the recovery solenoid valve are closed; the hydrogen entering from the module inlet flows directly to the pressure-regulating tank, and the hydrogen released from the hydrogen storage tank also flows into the pressure-regulating tank; the module releases the hydrogen in the hydrogen storage tank so that the pressure of the pressure-regulating tank is maintained at the hydrogen pressure required by the hydrogen-using equipment, and the pressure of the pressure-regulating tank does not drop due to insufficient hydrogen flow at the inlet.

[0024] Compared with the prior art, the present invention has at least the following beneficial technical effects:

[0025] (A) The present invention details an equipment installation layout scheme based on a storage tank group, a valve group and a hydrogen compressor, which is intuitive and feasible, and realizes the hydrogen balance between the externally connected hydrogen production equipment and the hydrogen-using equipment to ensure that the hydrogen production equipment and the hydrogen-using equipment work relatively independently, thereby increasing the reliability of the operation of the hydrogen energy system.

[0026] (B) The present invention has a simple structure and utilizes the switching between valve groups to simultaneously realize a pure hydrogen storage mode, a pure hydrogen release mode, a hydrogen production surplus mode, and a hydrogen production shortage mode, and can cope with various operating conditions that may occur in the actual operation of external hydrogen production equipment and hydrogen use equipment.

[0027] (C) It can be seen from the embodiments that the present invention is easy to use. After connecting to an external hydrogen production device and a hydrogen use device, the present invention automatically determines whether the real-time operating condition is in a hydrogen surplus, hydrogen shortage or hydrogen balance condition based on the real-time pressure data of the inlet hydrogen and the pressure change data of the surge tank, and switches the corresponding mode. When hydrogen is surplus, hydrogen is stored, and when hydrogen is insufficient, hydrogen is supplemented.

[0028] (D) The present invention makes up for the architectural details of the hydrogen storage system that are ignored by the existing inventions, and proposes a hardware design scheme and module operation method for storage and supply management of gaseous hydrogen, which is universal and can be applied to different gaseous hydrogen energy systems.

[0029] (E) In the hydrogen production surplus mode, the surplus hydrogen is completely stored in the hydrogen storage tank and will be released for use in the hydrogen production shortage mode, thereby improving the hydrogen utilization rate and achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the connection of the main components of the present invention.

[0031] Figure 2 Schematic diagram of different operation modes of the present invention.

[0032] Description of reference numerals:

[0033] 1-Hydrogen input interface, 2-Filter, 3-Buffer tank, 4-Inlet pressure sensor, 5-Inlet solenoid valve, 6-Check valve, 7-Straight-through solenoid valve, 8-Recovery solenoid valve, 9-Hydrogen compressor, 10-Hydrogen storage pressure sensor, 11-Hydrogen storage tank, 12-Outlet solenoid valve, 13-Outlet pressure sensor, 14-Pressure regulating tank, 15-Hydrogen output interface. DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0040] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0041] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0042] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] Example 1

[0044] like Figure 1 to Figure 2 As shown, this embodiment provides an architecture design system and working method of a hydrogen storage and management module, including a physical integration architecture within the module and a basic working mode of the module, and provides a solution that can effectively control the balance between input hydrogen and output hydrogen gas flows, thereby ensuring that hydrogen production equipment and hydrogen use equipment can operate safely and stably at the same time.

[0045] The present invention provides a hydrogen storage and management module architecture design system, which includes a design scheme for component connections and designs for different operating modes.

[0046] Connection scheme of components: see Figure 1As shown. After the hydrogen input from the hydrogen input interface 1 is filtered by the filter 2 for impurities, the buffer tank 3 is connected to one side of the pipeline, and the inlet pressure sensor 4 is installed on the other side. Then the gas pipeline is connected to a three-way joint to form two branches, one branch is connected to the intake solenoid valve 5, and the other branch is connected to the single-line valve 6. The one-way valve 6 is connected to the straight-through solenoid valve 7. A three-way joint is connected after the straight-through solenoid valve 7, one side of the three-way joint is directly connected to the pressure-stabilizing tank 14, and the other side is connected to the recovery solenoid valve 8. The intake solenoid valve 5 and the recovery solenoid valve 8 are connected by a three-way joint, and the remaining interface of the three-way joint is connected to the hydrogen input port of the hydrogen compressor 9. The hydrogen output port of the hydrogen compressor 9 is directly connected to the hydrogen storage tank 11, and the hydrogen storage tank 11 is equipped with a hydrogen storage pressure sensor 10. The outlet on the other side of the hydrogen storage tank is connected to the outlet solenoid valve 12. The other side of the outlet solenoid valve 12 is connected to the pressure-stabilizing tank 14 through a pipeline, and the pressure-stabilizing tank 14 is equipped with an outlet pressure sensor 13. The pressure-surge tank 14 provides a hydrogen output interface 15 .

[0047] In the present invention, the inlet pressure sensor 4 monitors the pressure of the input hydrogen in real time, and the input hydrogen pressure is substantially consistent with the gas pressure in the buffer tank 3. The hydrogen storage pressure sensor 10 monitors the hydrogen pressure in the hydrogen storage tank 11 in real time. The outlet pressure sensor 13 monitors the hydrogen pressure of the pressure regulating tank 14 in real time, and the pressure of the pressure regulating tank 14 is substantially consistent with the gas pressure at the hydrogen output interface 15.

[0048] The hydrogen input interface 1 of the present invention is connected to an external hydrogen production device, and the hydrogen output interface 15 is connected to a hydrogen consumption device. According to the hydrogen input flow rate and hydrogen output flow rate generated by the operation of the hydrogen production device and the hydrogen consumption device, the present invention has different operation modes. Please refer to Figure 2 As shown, the operation modes of the present invention can be divided into pure hydrogen storage, pure hydrogen release, excess hydrogen production and insufficient hydrogen production.

[0049] Example 2

[0050] The present invention provides a working method of a hydrogen storage and management module architecture design system, comprising:

[0051] See also Figure 2As shown in A, in the pure hydrogen storage mode, the hydrogen production equipment works, and the hydrogen consumption equipment does not work. The hydrogen input interface 1 has hydrogen input, at this time the air inlet solenoid valve 5 is opened, the through solenoid valve 7 is closed, the recovery solenoid valve 8 is closed, and the outlet solenoid valve 12 is closed. When the inlet pressure sensor 4 detects that the pressure reaches the design upper limit, the hydrogen compressor 9 starts and extracts hydrogen, so that the hydrogen pressure in the buffer tank 3 is reduced to the design lower limit and the hydrogen compressor 9 is stopped at the same time, until the input hydrogen makes the pressure monitored by the inlet pressure sensor 4 rise to the design upper limit again, and the hydrogen compressor 9 starts again and pressurizes the hydrogen into the hydrogen storage tank 11. In this mode, the input hydrogen is only stored in the hydrogen storage tank 11.

[0052] See also Figure 2 As shown in Figure B, in the pure hydrogen release mode, the hydrogen production equipment does not work, and the hydrogen consumption equipment works. The hydrogen output interface 15 has a continuous hydrogen output. At this time, the air inlet solenoid valve 5 is closed, the through solenoid valve 7 is closed, the recovery solenoid valve 8 is closed, and the outlet solenoid valve 12 is opened. The hydrogen stored in the hydrogen storage tank 11 is released into the surge tank 14 to maintain the continuous hydrogen output of the surge tank 14, and provide hydrogen for the hydrogen consumption equipment. In this mode, hydrogen is provided by the hydrogen storage tank 11.

[0053] See also Figure 2 As shown in C, in the hydrogen production surplus mode, the hydrogen production equipment and the hydrogen consumption equipment work at the same time, but the input hydrogen volume is greater than the output hydrogen volume. At this time, the air intake solenoid valve 5 is closed, the through solenoid valve 7 is opened, the recovery solenoid valve 8 is opened, and the outlet solenoid valve 12 is closed. Since the input hydrogen volume is greater than the output hydrogen volume, the pressure of the surge tank 14 will continue to rise until it reaches the designed upper limit pressure. At this time, the recovery solenoid valve 8 is opened, and the hydrogen compressor 9 works to extract hydrogen and reduce the pressure of the surge tank 14 to the designed working pressure. In this mode, the surplus part of the input hydrogen is stored in the hydrogen storage tank 11.

[0054] See also Figure 2 As shown in D, in the insufficient hydrogen production mode, the hydrogen production equipment and the hydrogen consumption equipment work simultaneously, but the input hydrogen volume is less than the output hydrogen volume. At this time, the intake solenoid valve 5 is closed, the through solenoid valve 7 is opened, the recovery solenoid valve 8 is closed, and the outlet solenoid valve 12 is opened. Since the input hydrogen volume is less than the output hydrogen volume, the pressure of the surge tank 14 will continue to decrease until it reaches the designed lower limit pressure. At this time, the outlet solenoid valve 12 is opened, and the hydrogen stored in the hydrogen storage tank 11 is released and maintains the pressure of the surge tank higher than the lower limit pressure. In this mode, the hydrogen storage tank 11 supplements the insufficient input hydrogen volume.

[0055] The four working modes can be switched between each other or run separately. Under the condition that the inlet hydrogen production equipment and the outlet hydrogen consumption equipment can work simultaneously, the invented device can switch between the hydrogen production surplus mode and the hydrogen production shortage mode based on the changes in the inlet hydrogen pressure and the outlet hydrogen pressure, so as to cope with the possible changes in the hydrogen flow rate of the hydrogen production equipment and the hydrogen consumption equipment, and achieve a real-time balance between the inlet hydrogen flow rate and the outlet hydrogen flow rate.

[0056] The following is an example to illustrate the working process of the present invention:

[0057] When the hydrogen storage and supply management module of the present invention is working, the hydrogen production equipment is connected to the hydrogen input interface 1, and the hydrogen consumption equipment is connected to the hydrogen output interface 15. The inlet pressure sensor 4 monitors the gas pressure of the buffer tank 3 in real time, the hydrogen storage pressure sensor 10 monitors the pressure of the hydrogen storage tank 11 in real time, and the outlet pressure sensor 13 monitors the pressure of the pressure-suppressing tank 14 in real time. The buffer tank 3 and the pressure-suppressing tank 14 have an upper limit pressure, a working pressure, and a lower limit pressure. The hydrogen storage tank 11 has an upper limit pressure and a lower limit pressure. It is assumed here that the upper limit pressure of the buffer tank 3 is 50kPa, the working pressure is 40kPa, the lower limit pressure is 30kPa, and the volume is 7L. The upper limit pressure of the pressure-suppressing tank 14 is 40kPa, the working pressure is 35kPa, the lower limit pressure is 30kPa, and the volume is 200L. The lower limit pressure of the hydrogen storage tank 11 is 200kPa, the upper limit pressure is 1600kPa, and the volume is 40L.

[0058] Only when the hydrogen production equipment is working, the module works in the pure hydrogen storage mode, the inlet hydrogen starts to enter the module, so that the gas pressure of the buffer tank 3 gradually reaches the upper limit pressure of 50kPa, and the hydrogen compressor 9 works and quickly extracts the hydrogen in the buffer tank 3. The gas pressure of the buffer tank 3 will drop rapidly and reach the working pressure of 40kPa. At this time, the hydrogen compressor 9 stops working, and then the gas pressure of the buffer tank 3 will rise to the upper limit pressure of 50kPa due to the input of hydrogen. The hydrogen compressor 9 repeats the rapid pumping operation and reduces the gas pressure in the buffer tank to the working pressure of 40kPa again. Under this working condition, the intermittent rapid pumping of the hydrogen compressor will cause the gas pressure of the buffer tank 3 to fluctuate cyclically, and the input hydrogen is completely stored in the hydrogen storage tank 11.

[0059] Only when the hydrogen consumption equipment is working, the module works in the pure hydrogen release mode, and there is hydrogen output at the hydrogen output interface 15. Due to the output of hydrogen, the gas pressure of the pressure-stabilizing tank 14 will gradually drop to the lower limit pressure of 30 kPa. At this time, the hydrogen stored in the hydrogen storage tank 11 will be released through the outlet solenoid valve 12 and enter the pressure-stabilizing tank 14 to maintain the gas pressure of the pressure-stabilizing tank 14 stable at the lower limit pressure of 30 kPa and ensure the stability of the hydrogen output flow rate.

[0060] When the hydrogen production equipment and the hydrogen consumption equipment are working at the same time, the module of the present invention will judge whether the module is in a surplus production condition or a insufficient hydrogen production condition according to the real-time pressure value of the pressure-surge tank 14. At this time, the air inlet solenoid valve 5 is closed and the direct solenoid valve 7 is opened. The opening and closing of the recovery solenoid valve 8 and the outlet solenoid valve 12 are judged by the air pressure change of the pressure-surge tank 14. The direct solenoid valve 7 is opened to connect the buffer tank 3 with the pressure-surge tank 14. When the input hydrogen flow rate is greater than the output hydrogen flow rate, the pressure of the pressure-surge tank 14 will continue to rise until it reaches the upper limit pressure of 40kPa. At this time, the recovery solenoid valve 8 is opened, the outlet solenoid valve 12 is closed, and the hydrogen compressor 9 works and quickly extracts the hydrogen in the pressure-surge tank 14 and the buffer tank 3, and then the hydrogen compressor 9 stops working when the air pressure of the pressure-surge tank 14 drops to 35kPa. Since the input hydrogen flow is greater than the output hydrogen flow, the air pressure of the surge tank 14 will rise to 40kPa again, and the hydrogen compressor will start again and extract and store surplus hydrogen into the hydrogen storage tank 11. When the input hydrogen flow is less than the output hydrogen flow, the pressure of the surge tank 14 will continue to drop until it reaches the lower limit pressure of 30kPa. At this time, the recovery solenoid valve 8 is closed, and the outlet solenoid valve 12 is opened. The hydrogen in the hydrogen storage tank 11 is released by depressurization and used to maintain the pressure of the surge tank 14 at a lower limit pressure of 30kPa. When the input hydrogen flow is exactly equal to the output hydrogen flow, the air pressure in the surge tank 14 is stabilized at a certain pressure value between the upper pressure limit 40kPa and the lower pressure limit 30kPa, and the recovery solenoid valve 8 and the outlet solenoid valve 12 are both closed. At this time, the module of the present invention ensures that the inlet hydrogen and the outlet hydrogen are connected and maintained stable. The hydrogen storage and supply management module of the present invention will switch under the three working conditions according to the actual changes in the inlet hydrogen flow and the outlet hydrogen flow, and realize the real-time balance of the input hydrogen and the output hydrogen.

[0061] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached 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 are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0062] In addition, it should be understood that although this specification is described in accordance with the 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 can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A hydrogen storage and management module architecture design system, characterized in that: Including gas cylinder group, pressure sensor group, valve group, hydrogen compressor and pipeline system; The gas cylinder group includes a buffer tank, a hydrogen storage tank and a surge tank; the pressure sensor group includes an inlet pressure sensor, a hydrogen storage pressure sensor and an outlet pressure sensor; the inlet pressure sensor is integrated on the hydrogen inlet position pipeline, and the inlet pressure sensor is used to monitor the gas pressure of the buffer tank; the hydrogen storage pressure sensor is integrated on the interface reserved on the tank wall of the hydrogen storage tank, and is used to monitor the gas pressure in the hydrogen storage tank; the outlet pressure sensor is installed at the hydrogen inlet of the surge tank or on the interface reserved on the tank wall of the surge tank, and is used to monitor the gas pressure of the surge tank; the valve group includes an intake solenoid valve, a straight-through solenoid valve, a recovery solenoid valve and an outlet solenoid valve; the pipeline system includes a stainless steel hydrogen pipeline and a three-way joint and a four-way joint; The hydrogen inlet is connected to an external hydrogen production equipment. The hydrogen input from the outside first passes through a filter and then enters a four-way joint. The two side interfaces of the four-way joint are connected to an inlet pressure sensor and a buffer tank; a remaining interface of the four-way joint is connected to a three-way joint through a pipeline, and the two remaining interfaces of the three-way joint are respectively connected to an intake solenoid valve and a one-way valve, and a straight-through solenoid valve is connected behind the one-way valve; a pressure-stabilizing tank is connected behind the straight-through solenoid valve; a three-way joint is connected behind the intake solenoid valve, and the remaining two interfaces of the three-way joint are respectively connected to the hydrogen inlet and a recovery solenoid valve of the hydrogen compressor, and the recovery solenoid valve is connected to the pressure-stabilizing tank, the hydrogen outlet of the hydrogen compressor is connected to a hydrogen storage tank, the outlet of the hydrogen storage tank is connected to an outlet solenoid valve, the outlet solenoid valve is connected to a pressure-stabilizing tank, and the pressure-stabilizing tank is connected to the hydrogen outlet.

2. The architecture design system of a hydrogen storage and management module according to claim 1, characterized in that: The design upper limit of the buffer tank's pressure is the same as that of the surge tank's pressure, both of which are higher than the inlet hydrogen pressure and the outlet hydrogen pressure.

3. The architecture design system of a hydrogen storage and management module according to claim 2, characterized in that: The design upper limit of the hydrogen storage tank's pressure is related to the hydrogen storage capacity requirement.

4. The architecture design system of a hydrogen storage and management module according to claim 1, characterized in that: The hydrogen compressor is an oil-free hydrogen compressor that pressurizes the low-pressure hydrogen at the compressor inlet and outputs it from the compressor outlet.

5. The architecture design system of a hydrogen storage and management module according to claim 1, characterized in that: A hydrogen input interface is provided at the hydrogen inlet.

6. The architecture design system of a hydrogen storage and management module according to claim 1, characterized in that: A hydrogen output interface is provided at the hydrogen outlet.

7. The working method of the architecture design system of the hydrogen storage and management module according to claim 1, characterized in that: include: In pure hydrogen storage mode, the input hydrogen is pressurized and stored; at this time, the air intake solenoid valve is opened, and the straight-through solenoid valve, recovery solenoid valve and outlet solenoid valve are all closed; the hydrogen compressor works to extract the inlet hydrogen in the buffer tank and store it under pressure in the hydrogen storage tank.

8. The working method of the architecture design system of the hydrogen storage and management module according to claim 7 is characterized in that: Also includes: In pure hydrogen release mode, hydrogen is provided to external hydrogen-using equipment; at this time, the outlet solenoid valve is open, and the air inlet solenoid valve, the through solenoid valve and the recovery solenoid valve are all closed; the hydrogen stored in the hydrogen storage tank is directly supplied to the pressure-stabilizing tank to ensure the pressure of the pressure-stabilizing tank is stable, and the pressure-stabilizing tank provides a hydrogen gas source with stable pressure to external hydrogen-using equipment.

9. The working method of the architecture design system of the hydrogen storage and management module according to claim 8, characterized in that: Also includes: In the hydrogen production surplus mode, this mode has both hydrogen input and hydrogen output, but the flow rate of hydrogen input is higher than the flow rate of hydrogen output; at this time, the straight-through solenoid valve and the recovery solenoid valve are open, and the air inlet solenoid valve and the outlet solenoid valve are closed; the hydrogen entering from the module inlet flows directly to the pressure-regulating tank, and flows from the hydrogen output interface of the pressure-regulating tank to the hydrogen-using equipment; the hydrogen input flow rate is higher than the hydrogen output flow rate, and the pressure in the pressure-regulating tank will gradually increase; when the pressure is greater than the set value, the hydrogen compressor is started to extract the hydrogen in the pressure-regulating tank and store it in the hydrogen storage tank.

10. The working method of the architecture design system of the hydrogen storage and management module according to claim 9, characterized in that: Also includes: In the insufficient hydrogen production mode, there is both hydrogen input and hydrogen output in this mode, but the flow rate of hydrogen input is less than the flow rate of hydrogen output; at this time, the straight-through solenoid valve and the outlet solenoid valve are open, and the air intake solenoid valve and the recovery solenoid valve are closed; the hydrogen entering from the module inlet flows directly to the pressure-regulating tank, and the hydrogen released from the hydrogen storage tank also flows into the pressure-regulating tank; the module releases the hydrogen in the hydrogen storage tank so that the pressure of the pressure-regulating tank is maintained at the hydrogen pressure required by the hydrogen-using equipment, and the pressure of the pressure-regulating tank does not drop due to insufficient hydrogen flow at the inlet.

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