A solid-state hydrogen storage thermal management system and method

Abstract

The present invention provides a solid-state hydrogen storage thermal management system and method, which relates to the field of thermal management technology. The system includes a solid-state hydrogen storage module, a heating liquid storage module, a heat exchanger and a cooling module. The solid-state hydrogen storage module is composed of a plurality of solid-state hydrogen storage units connected in parallel, a first control valve and a second control valve. The heating liquid storage module includes a liquid storage tank and a heater, which is connected to each solid-state hydrogen storage unit; the cooling module includes a chiller, which is used to cool the medium flowing out of the liquid storage tank during hydrogen filling. During the hydrogen charging and discharging operation, by opening the control valve of the target solid-state hydrogen storage unit, a connecting loop is formed between the target solid-state hydrogen storage unit, the heating liquid storage module and the heat exchanger. The heater heats the heat exchange medium to the first temperature range required for hydrogen discharge, and the chiller cools the heat exchange medium to the second temperature range during hydrogen charging. The present invention can effectively control the temperature of the solid-state hydrogen storage system during the hydrogen charging and discharging process.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen storage technology, and in particular to a solid-state hydrogen storage thermal management system and method. Background Art

[0002] As the global demand for clean energy grows, hydrogen energy is becoming a key component of the future energy system due to its environmentally friendly and efficient characteristics. Among the many hydrogen storage technologies, solid-state hydrogen storage technology has gained widespread attention due to its high hydrogen storage density and excellent safety performance. Although solid-state hydrogen storage technology has many advantages, it is accompanied by a large amount of heat absorption and release effects during the absorption and release of hydrogen. The heat absorption and release effects will cause the temperature of the hydrogen storage material to change significantly. If the temperature is not effectively controlled, it may affect the hydrogen storage efficiency of the material and the safety of the overall system.

[0003] Traditional solid-state hydrogen storage systems usually rely on simple temperature control methods and cannot meet the needs of rapid response and efficient energy utilization. How to efficiently control the temperature during the charging and discharging process of solid-state hydrogen storage systems has become an urgent problem that needs to be solved in the current field. Summary of the invention

[0004] The problem solved by the present invention is to effectively control the temperature of a solid-state hydrogen storage system during the hydrogen charging and discharging process, thereby improving the hydrogen charging and discharging efficiency of the solid-state hydrogen storage system.

[0005] In order to solve the above problems, the present invention provides a solid-state hydrogen storage thermal management system and method.

[0006] In a first aspect, the present invention provides a solid-state hydrogen storage thermal management system, comprising:

[0007] A solid-state hydrogen storage module, comprising a plurality of solid-state hydrogen storage units connected in parallel, and a first control valve and a second control valve respectively located at both ends of each of the solid-state hydrogen storage units for controlling the opening and closing of a pipeline of the solid-state hydrogen storage unit;

[0008] A heating liquid storage module, comprising a liquid storage tank and a heater, wherein the heater is connected to the liquid storage tank, and two ends of the heating liquid storage module are respectively connected to each of the solid-state hydrogen storage units;

[0009] A heat exchanger, wherein the cold side inlet and the cold side outlet of the heat exchanger are respectively connected to two ends of the cooling module, the hot side inlet of the heat exchanger is connected to the liquid storage tank, and the hot side outlet of the heat exchanger is connected to the solid-state hydrogen storage unit;

[0010] A cooling module, comprising a water chiller, wherein the water chiller is used to cool the heat exchange medium flowing out of the liquid storage tank through the heat exchanger in a hydrogen charging state;

[0011] Among them, the first control valve and the second control valve corresponding to at least one of the solid-state hydrogen storage units are opened, and the heater heats the heat exchange medium flowing through the solid-state hydrogen storage unit to the first temperature range of the solid-state hydrogen storage unit, or the chiller cools the heat exchange medium of the connecting circuit to the second temperature range corresponding to when the solid-state hydrogen storage unit starts to release hydrogen.

[0012] Optionally, it also includes:

[0013] A driving water pump is located on a circulation loop formed by the solid hydrogen storage module, the heating liquid storage module and the heat exchanger, and is used to provide power for the circulation of the heat exchange medium.

[0014] Optionally, the solid-state hydrogen storage unit includes the target solid-state hydrogen storage unit and a reserve solid-state hydrogen storage unit, the target hydrogen storage unit refers to the solid-state hydrogen storage unit in the hydrogen charging and discharging state, the reserve solid-state hydrogen storage unit refers to the solid-state hydrogen storage unit about to enter the hydrogen charging and discharging state, and the solid-state hydrogen storage thermal management system further includes:

[0015] A hydrogen charging and discharging pretreatment module, which is configured to adjust the heat exchange medium of at least one of the preparatory solid-state hydrogen storage units to the first temperature range before the preparatory solid-state hydrogen storage unit enters the hydrogen discharging state, or, before the preparatory solid-state hydrogen storage unit enters the hydrogen charging state, adjust the heat exchange medium of at least one of the preparatory solid-state hydrogen storage units to the second temperature range, and the hydrogen charging and discharging pretreatment module includes:

[0016] a preparatory liquid storage tank, used to receive, store and release a target heat exchange medium, wherein the target heat exchange medium refers to a heat exchange medium having a temperature within the first temperature range or a heat exchange medium having a temperature within the second temperature range, and the preparatory liquid storage tank is in communication with the liquid storage tank;

[0017] A liquid inlet control valve, located at the liquid inlet side of the reserve liquid storage tank;

[0018] A liquid inlet end water pump, located between the liquid inlet control valve and the reserve liquid storage tank, for providing power for inputting the target heat exchange medium into the reserve liquid storage tank;

[0019] A liquid outlet control valve, located at the liquid outlet side of the reserve liquid storage tank;

[0020] A liquid outlet water pump, located between the liquid outlet control valve and the reserve liquid storage tank, for providing power for the target heat exchange medium to be output from the reserve liquid storage tank;

[0021] A hydrogen charging and discharging pretreatment pipeline unit is connected to the preparatory liquid storage tank and the preparatory solid-state hydrogen storage unit, and the hydrogen charging and discharging pretreatment pipeline unit is configured to transfer the target heat exchange medium to the preparatory solid-state hydrogen storage unit before the preparatory solid-state hydrogen storage unit performs a hydrogen charging and discharging state;

[0022] The first temperature range is the operating temperature range of the solid-state hydrogen storage unit when releasing hydrogen, and the second temperature range is the operating temperature range of the solid-state hydrogen storage unit when releasing hydrogen.

[0023] Optionally, the hydrogen charging and discharging pretreatment pipeline unit includes:

[0024] A hydrogen charging and discharging pretreatment pipeline, connecting the reserve liquid storage tank and the reserve solid hydrogen storage unit;

[0025] A liquid outlet control valve of the reserve solid-state hydrogen storage unit, located at the liquid inlet side of the reserve solid-state hydrogen storage unit;

[0026] The liquid inlet control valve of the reserve solid-state hydrogen storage unit is located at the liquid outlet side of the reserve solid-state hydrogen storage unit.

[0027] Optionally, it also includes:

[0028] A reserve liquid storage tank inlet flowmeter, located at the liquid inlet side of the reserve liquid storage tank, used to measure the inflow of heat exchange medium into the reserve liquid storage tank;

[0029] A reserve liquid storage tank outlet flow meter, located at the liquid outlet side of the reserve liquid storage tank, used to measure the flow rate of the heat exchange medium flowing out of the reserve liquid storage tank and into the reserve solid hydrogen storage unit;

[0030] A liquid storage tank temperature sensor, connected to the liquid storage tank, and used to measure the temperature of the heat exchange medium in the liquid storage tank;

[0031] A solid-state hydrogen storage unit temperature sensor, connected to the solid-state hydrogen storage unit, and used to measure the temperature of the heat exchange medium in the solid-state hydrogen storage unit;

[0032] The target solid-state hydrogen storage unit liquid outlet control valve is located at the liquid inlet side of the target solid-state hydrogen storage unit and is used to control the opening and closing of the pipeline between the target solid-state hydrogen storage unit and the input end of the reserve liquid storage tank;

[0033] The target solid-state hydrogen storage unit liquid inlet control valve is located at the liquid outlet side of the target solid-state hydrogen storage unit and is used to control the opening and closing of the pipeline between the target solid-state hydrogen storage unit and the output end of the reserve liquid storage tank.

[0034] In a second aspect, the present invention further provides a solid-state hydrogen storage thermal management method, using the solid-state hydrogen storage thermal management system, comprising:

[0035] Identifying a target operating state of the solid-state hydrogen storage system, wherein the target operating state includes a hydrogen discharging operating state or a hydrogen charging operating state;

[0036] If the target working state is the hydrogen release working state, the first control valve and the second control valve corresponding to at least one group of the target solid-state hydrogen storage units are opened, so that at least one group of the target solid-state hydrogen storage units, the heating liquid storage module and the heat exchanger form a communication loop, the heater is started and the chiller is turned off, and the heater is controlled to heat the heat exchange medium of the communication loop to the first temperature range of the solid-state hydrogen storage unit;

[0037] If the target operating state is the hydrogen charging operating state, open the first control valve and the second control valve corresponding to at least one group of the target solid-state hydrogen storage units, so that at least one group of the target solid-state hydrogen storage units, the heating liquid storage module and the heat exchanger form a connecting loop, start the chiller and turn off the heater, and control the chiller to cool the heat exchange medium of the connecting loop to the second temperature range of the solid-state hydrogen storage unit.

[0038] Optionally, it also includes:

[0039] When the target working state is the hydrogen release working state and the heat exchange medium of the communication circuit is heated to a first temperature range of the solid-state hydrogen storage unit, collecting the hydrogen release amount of the target solid-state hydrogen storage unit;

[0040] When the hydrogen release amount of the target solid-state hydrogen storage unit reaches a preset hydrogen release value, the liquid inlet control valve is opened to input the target heat exchange medium into the reserve liquid storage tank; when the inflow of the target heat exchange medium in the reserve liquid storage tank reaches the target liquid storage amount, the liquid inlet control valve is closed, the liquid outlet water pump and the liquid inlet control valve of the reserve solid-state hydrogen storage unit are opened; when the outflow of the target heat exchange medium reaches a preset outflow amount, the liquid outlet water pump and the liquid inlet control valve of the reserve solid-state hydrogen storage unit are closed to preheat the temperature of the heat exchange medium in the reserve solid-state hydrogen storage unit to a first temperature range.

[0041] Optionally, it also includes:

[0042] When the amount of hydrogen released from the target solid-state hydrogen storage unit reaches the amount of hydrogen stored, the target solid-state hydrogen storage unit completes the hydrogen release work, closes the first control valve and the second control valve corresponding to the target solid-state hydrogen storage unit, and opens the target solid-state hydrogen storage unit liquid outlet control valve and the liquid inlet end water pump corresponding to the target solid-state hydrogen storage unit to input the target heat exchange medium in the target solid-state hydrogen storage unit into the reserve liquid storage tank;

[0043] When the target heat exchange medium in the target solid-state hydrogen storage unit completely flows into the reserve liquid storage tank, closing the target solid-state hydrogen storage unit liquid outlet control valve and the liquid inlet end water pump corresponding to the target solid-state hydrogen storage unit;

[0044] The preparatory solid-state hydrogen storage unit in the hydrogen release working state is automatically converted into the target solid-state hydrogen storage unit. When the hydrogen release amount of the target solid-state hydrogen storage unit reaches a preset hydrogen release value, the liquid inlet control valve of the preparatory solid-state hydrogen storage unit and the liquid outlet water pump of the next hydrogen release sequence are opened according to the hydrogen release working sequence of the solid-state hydrogen storage unit to input the target heat exchange medium of the preparatory liquid storage tank into the preparatory solid-state hydrogen storage unit of the next hydrogen release sequence to complete the preheating of the preparatory solid-state hydrogen storage unit, and the above cycle is repeated until the last target solid-state hydrogen storage unit completes the hydrogen release work. The last target solid-state hydrogen storage unit refers to the target solid-state hydrogen storage unit that performs the hydrogen release operation last according to the hydrogen release working sequence;

[0045] Open the target solid-state hydrogen storage unit liquid outlet control valve and the liquid inlet end water pump corresponding to the last target solid-state hydrogen storage unit until the target heat exchange medium of the last target solid-state hydrogen storage unit is completely input into the reserve liquid storage tank, and close the target solid-state hydrogen storage unit liquid outlet control valve and the liquid inlet end water pump corresponding to the last target solid-state hydrogen storage unit;

[0046] The liquid outlet water pump and the liquid outlet control valve are turned on to input the target heat exchange medium in the reserve liquid storage tank into the liquid storage tank. After the target heat exchange medium in the reserve liquid storage tank is completely input into the liquid storage tank, the liquid outlet water pump and the liquid outlet control valve are turned off to restore the solid-state hydrogen storage system to its initial state, thereby completing the hydrogen release operation of the solid-state hydrogen storage system.

[0047] Optionally, it also includes:

[0048] When the target operating state is the hydrogen charging operating state and the heat exchange medium of the communication circuit is cooled to a second temperature range of the solid-state hydrogen storage unit, collecting the hydrogen absorption amount of the target solid-state hydrogen storage unit;

[0049] When the hydrogen absorption amount of the target solid-state hydrogen storage unit reaches a preset hydrogen charging value, the liquid inlet control valve is opened to input the target heat exchange medium into the reserve liquid storage tank; when the inflow of the target heat exchange medium into the reserve liquid storage tank reaches the target liquid storage amount, the liquid inlet control valve is closed, the liquid outlet water pump and the liquid inlet control valve of the reserve solid-state hydrogen storage unit are opened; when the outflow of the target heat exchange medium reaches a preset outflow amount, the liquid outlet water pump and the liquid inlet control valve of the reserve solid-state hydrogen storage unit are closed to make the temperature of the heat exchange medium in the reserve solid-state hydrogen storage unit within the second temperature range.

[0050] Optionally, it also includes:

[0051] When the hydrogen absorption amount of the target solid-state hydrogen storage unit reaches the hydrogen storage amount, the target solid-state hydrogen storage unit completes the hydrogen charging work, closes the first control valve and the second control valve corresponding to the target solid-state hydrogen storage unit, and opens the target solid-state hydrogen storage unit liquid outlet control valve and the liquid inlet end water pump corresponding to the target solid-state hydrogen storage unit to input the target heat exchange medium in the target solid-state hydrogen storage unit into the reserve liquid storage tank;

[0052] When the target heat exchange medium in the target solid-state hydrogen storage unit completely flows into the reserve liquid storage tank, closing the target solid-state hydrogen storage unit liquid outlet control valve and the liquid inlet end water pump corresponding to the target solid-state hydrogen storage unit;

[0053] The preparatory solid-state hydrogen storage unit in the hydrogen charging working state is automatically converted into the target solid-state hydrogen storage unit. When the hydrogen absorption amount of the target solid-state hydrogen storage unit reaches the preset hydrogen storage amount, the liquid inlet control valve of the preparatory solid-state hydrogen storage unit and the liquid outlet water pump of the next hydrogen charging sequence are opened according to the hydrogen charging working sequence of the solid-state hydrogen storage unit, so as to input the target heat exchange medium of the preparatory liquid storage tank into the preparatory solid-state hydrogen storage unit of the next hydrogen charging sequence, and complete the pre-cooling of the preparatory solid-state hydrogen storage unit, and repeat the above cycle until the last target solid-state hydrogen storage unit completes the hydrogen charging work. The last target solid-state hydrogen storage unit refers to the target solid-state hydrogen storage unit that performs the hydrogen charging operation last according to the hydrogen charging working sequence;

[0054] Open the target solid-state hydrogen storage unit liquid outlet control valve and the liquid inlet end water pump corresponding to the last target solid-state hydrogen storage unit until the target heat exchange medium of the last target solid-state hydrogen storage unit is completely input into the reserve liquid storage tank, and close the target solid-state hydrogen storage unit liquid outlet control valve and the liquid inlet end water pump corresponding to the last target solid-state hydrogen storage unit;

[0055] The liquid outlet water pump and the liquid outlet control valve are turned on to input the target heat exchange medium in the reserve liquid storage tank into the liquid storage tank. After the target heat exchange medium in the reserve liquid storage tank is completely input into the liquid storage tank, the liquid outlet water pump and the liquid outlet control valve are turned off to restore the solid-state hydrogen storage system to its initial state, thereby completing the hydrogen charging operation of the solid-state hydrogen storage system.

[0056] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a plurality of solid-state hydrogen storage units in parallel and configuring a first control valve and a second control valve for each solid-state hydrogen storage unit, synchronous management of a plurality of solid-state hydrogen storage units is realized, and the charging and discharging efficiency of the solid-state hydrogen storage unit can be effectively improved; the cooling module cools the heat exchange medium to the second temperature range required for hydrogen charging through a heat exchanger, ensuring that the solid-state hydrogen storage unit will not reduce the hydrogen charging efficiency due to excessive temperature during the hydrogen charging process; in the hydrogen discharging state, the heating liquid storage module heats the heat exchange medium to the first temperature range required for hydrogen discharging through a heater, ensuring that the hydrogen discharging process can proceed smoothly and improve the hydrogen release rate; through the coordinated cooperation of the heating liquid storage module, the cooling module, the first control valve and the second control valve, the solid-state hydrogen storage thermal management system can quickly switch the medium path, realize the precise thermal management of different solid-state hydrogen storage units according to actual needs, and optimize the storage and access efficiency of hydrogen; at the same time, through the flexible opening and closing of the first control valve and the second control valve, the fluid linkage between different modules can be realized, so that the solid-state hydrogen storage thermal management system can accurately switch the channel according to the hydrogen charging and discharging needs, optimize the flow path of the heat exchange medium, and improve the thermal management efficiency. The present invention can effectively control the temperatures of multiple solid-state hydrogen storage units at the same time, thereby improving the hydrogen charging and discharging efficiency of the solid-state hydrogen storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A schematic structural diagram of a solid-state hydrogen storage thermal management system provided by an embodiment of the present invention;

[0058] Figure 2 A schematic flow chart of a solid-state hydrogen storage thermal management method provided in one embodiment of the present invention.

[0059] Description of reference numerals:

[0060] 11-solid-state hydrogen storage unit; 111-target solid-state hydrogen storage unit; 112-prepared solid-state hydrogen storage unit; 12-first control valve; 13-second control valve; 21-liquid storage tank; 22-heater; 31-chiller; 32-heat exchanger; 4-driving water pump; 51-prepared liquid storage tank; 52-liquid inlet control valve; 53-liquid outlet control valve; 54-liquid inlet end water pump; 55-liquid outlet end water pump; 561-prepared solid-state hydrogen storage unit liquid outlet control valve; 562-prepared solid-state hydrogen storage unit liquid inlet control valve; 61-prepared liquid storage tank liquid inlet flowmeter; 62-prepared liquid storage tank liquid outlet flowmeter; 63-target solid-state hydrogen storage unit liquid outlet control valve; 64-target solid-state hydrogen storage unit liquid inlet control valve. DETAILED DESCRIPTION

[0061] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0062] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0063] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0064] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0065] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0066] Reference Figure 1 The present invention provides a solid-state hydrogen storage thermal management system, including a solid-state hydrogen storage module, a heating liquid storage module, a heat exchanger and a cooling module.

[0067] The solid-state hydrogen storage module includes a plurality of solid-state hydrogen storage units 11 connected in parallel, and a first control valve 12 and a second control valve 13 respectively located at both ends of each of the solid-state hydrogen storage units 11 for controlling the opening and closing of the solid-state hydrogen storage unit pipeline. The solid-state hydrogen storage unit 11 is used to store and release hydrogen.

[0068] Specifically, the solid-state hydrogen storage module includes a plurality of parallel solid-state hydrogen storage units 11, the solid-state hydrogen storage unit 11 includes a hydrogen storage tank and a hydrogen storage alloy placed inside the hydrogen storage tank, and a heat exchange medium interlayer for accommodating a heat exchange medium is arranged around the hydrogen storage tank. By adjusting the temperature of the heat exchange medium, the ambient temperature of the hydrogen storage alloy can be adjusted to make it at a better hydrogen charging and discharging temperature, thereby achieving the purpose of controlling the charging and discharging of the solid-state hydrogen storage unit 11. Both ends of each solid-state hydrogen storage unit 11 are equipped with a first control valve 12 and a second control valve 13 for controlling the opening and closing of the solid-state hydrogen storage unit pipeline. The solid-state hydrogen storage unit pipeline refers to the pipeline connecting the solid-state hydrogen storage unit 11. By controlling the opening and closing of the solid-state hydrogen storage unit pipeline, the thermal management of the hydrogen charging and discharging state of each solid-state hydrogen storage unit 11 is performed.

[0069] The heating liquid storage module includes a liquid storage tank 21 and a heater 22. The heater 22 is connected to the liquid storage tank 21 and is used to heat the heat exchange medium in the liquid storage tank 21. Both ends of the heating liquid storage module are respectively connected to each of the solid-state hydrogen storage units 11.

[0070] It should be explained that the liquid storage tank 21 is filled with a heat exchange medium, and the heater 22 heats the heat exchange medium in the liquid storage tank 21 to supply heat to the solid-state hydrogen storage unit 11 during the hydrogen release process, so that it adapts to the first temperature range of the solid-state hydrogen storage unit 11, thereby improving the hydrogen release efficiency.

[0071] The heat exchanger 32 includes a cold side inlet, a cold side outlet, a hot side inlet and a hot side outlet, wherein the cold side inlet and the cold side outlet are respectively connected to two ends of the cooling module, the hot side inlet is connected to the liquid storage tank 21, and the hot side outlet is connected to the solid-state hydrogen storage unit 11;

[0072] The cooling module includes a water chiller 31 , and the water chiller 31 is used to cool the heat exchange medium flowing out of the liquid storage tank 21 through the heat exchanger 32 in the hydrogen charging state.

[0073] Specifically, the cold side inlet and the cold side outlet of the heat exchanger 32 are respectively connected to the two ends of the cooling module, while the hot side inlet is connected to the liquid storage tank 21, and the hot side outlet is connected to the first control valve 12. Among them, the medium flowing through the cold side of the heat exchanger 32 is different from the medium flowing through the hot side of the heat exchanger 32, and the two are independent of each other, thereby realizing efficient heat conversion of the solid-state hydrogen storage thermal management system. Since the heat exchanger 32 is connected to the chiller 31, the heat exchanger 32 can receive the cooling effect of the chiller 31, and then cool the heat exchange medium flowing through the liquid storage tank 21, so as to ensure that the solid-state hydrogen storage unit 11 is in an appropriate temperature condition, thereby improving the hydrogen charging efficiency.

[0074] During the hydrogen charging stage, the chiller 31 cools the heat exchange medium flowing out of the liquid storage tank 21 through the heat exchanger 32 to adapt it to the second temperature range of the solid hydrogen storage unit 11 to ensure that the temperature conditions during hydrogen charging are optimized.

[0075] Among them, in the hydrogen charging and discharging state, the first control valve 12 and the second control valve 13 corresponding to at least one of the solid-state hydrogen storage units 11 are opened, and the heater 22 heats the heat exchange medium flowing through the solid-state hydrogen storage unit 11 to the first temperature range of the solid-state hydrogen storage unit 11, or the chiller 31 cools the heat exchange medium flowing through the solid-state hydrogen storage unit 11 to the second temperature range of the solid-state hydrogen storage unit 11, and the target solid-state hydrogen storage unit 111 refers to the solid-state hydrogen storage unit 11 in the hydrogen charging and discharging state, the first temperature range is the operating temperature range of the solid-state hydrogen storage unit 11 when degassing hydrogen, and the second temperature range is the operating temperature range of the solid-state hydrogen storage unit 11 when charging hydrogen.

[0076] When charging and discharging hydrogen in the solid-state hydrogen storage unit 11, the solid-state hydrogen storage thermal management system selects the target solid-state hydrogen storage unit 111 according to the operation requirements, opens the first control valve 12 and the second control valve 13 corresponding to the target solid-state hydrogen storage unit 111, and realizes heat exchange with the heating liquid storage module or the cooling module. Through precise temperature control and cooperation with the heating liquid storage module or the cooling module, efficient thermal management of hydrogen charging and discharging and hydrogen energy utilization can be achieved.

[0077] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a plurality of solid-state hydrogen storage units in parallel and configuring a first control valve 12 and a second control valve 13 for each solid-state hydrogen storage unit, the synchronous management of the plurality of solid-state hydrogen storage units is realized, and the charging and discharging efficiency of the solid-state hydrogen storage units can be effectively improved; the cooling module cools the heat exchange medium to the second temperature range required for hydrogen charging through the heat exchanger 32, ensuring that the hydrogen charging efficiency of the solid-state hydrogen storage unit will not be reduced due to excessive temperature during the hydrogen charging process; in the hydrogen discharging state, the heating liquid storage module heats the heat exchange medium to the first temperature range required for hydrogen discharging through the heater 22, ensuring The hydrogen release process can proceed smoothly and improve the hydrogen release efficiency; through the coordinated cooperation of the heating liquid storage module, the cooling module, the first control valve 12 and the second control valve 13, the solid-state hydrogen storage thermal management system can quickly switch the medium path, realize the precise thermal management of different solid-state hydrogen storage units according to actual needs, and optimize the storage and access efficiency of hydrogen; at the same time, through the flexible opening and closing of the first control valve 12 and the second control valve 13, the fluid linkage between different modules can be realized, so that the solid-state hydrogen storage thermal management system can accurately switch channels according to the hydrogen charging and discharging needs, optimize the flow path of the heat exchange medium, and improve the thermal management efficiency. The present invention can effectively control the temperature of multiple solid-state hydrogen storage units at the same time, and improve the hydrogen charging and discharging efficiency of the solid-state hydrogen storage system.

[0078] Furthermore, the solid-state hydrogen storage thermal management system also includes:

[0079] A driving water pump 4 is located on a circulation loop formed by the solid hydrogen storage module, the heating liquid storage module and the heat exchanger 32, and is used to provide power for the circulation of the heat exchange medium.

[0080] In one embodiment, the solid-state hydrogen storage unit 11 includes a target solid-state hydrogen storage unit 111 and a preparatory solid-state hydrogen storage unit 112, wherein the target solid-state hydrogen storage unit 111 refers to the solid-state hydrogen storage unit 11 in a hydrogen charging and discharging state, and the preparatory solid-state hydrogen storage unit 112 refers to the solid-state hydrogen storage unit 11 that is about to enter a hydrogen charging and discharging state, and the solid-state hydrogen storage thermal management system further includes:

[0081] The hydrogen charging and discharging pretreatment module is configured to adjust the heat exchange medium of at least one of the preparatory solid-state hydrogen storage units 112 to the first temperature range before the preparatory solid-state hydrogen storage unit 112 enters the hydrogen discharging state, or to adjust the heat exchange medium of at least one of the preparatory solid-state hydrogen storage units 112 to the second temperature range before the preparatory solid-state hydrogen storage unit 112 enters the hydrogen charging state.

[0082] The hydrogen charging and discharging pretreatment module comprises:

[0083] The reserve liquid storage tank 51 is used to receive, store and release the target heat exchange medium, wherein the target heat exchange medium refers to the heat exchange medium whose temperature is within the first temperature range, or the heat exchange medium whose temperature is within the second temperature range. The reserve liquid storage tank 51 is connected to the liquid storage tank 21.

[0084] It can be understood that the reserve liquid storage tank 51 is similar to a heat buffer exchanger, and can receive the target heat exchange medium after temperature adjustment from the heating liquid storage module or the cooling module, so that when the target solid-state hydrogen storage unit 111 is performing hydrogen charging and discharging operations, the target heat exchange medium can be input into the reserve solid-state hydrogen storage unit 112, so that the heat exchange medium of the reserve solid-state hydrogen storage unit 112 is pre-adjusted to the first temperature range or the second temperature range, thereby reducing the waiting time for hydrogen charging and discharging, realizing uninterrupted hydrogen charging and discharging of the solid-state hydrogen storage thermal management system, and improving the hydrogen charging and discharging efficiency of the solid-state hydrogen storage thermal management system.

[0085] The liquid inlet control valve 52 is located at the liquid inlet side of the reserve liquid storage tank 51 and is used to control the input amount of the target heat exchange medium in the reserve liquid storage tank 51 .

[0086] The liquid inlet end water pump 54 is located between the liquid inlet control valve 52 and the reserve liquid storage tank 51 , and is used to provide power for inputting the target heat exchange medium into the reserve liquid storage tank 51 .

[0087] The liquid outlet control valve 53 is located at the liquid outlet side of the reserve liquid storage tank 51 , and is opened only when the heat exchange medium in the reserve liquid storage tank 51 is output to the liquid storage tank 21 , and is usually in a closed state.

[0088] The liquid outlet water pump 55 is located between the liquid outlet control valve 53 and the reserve liquid storage tank 51 , and is used to provide power for the target heat exchange medium to be output from the reserve liquid storage tank 51 .

[0089] A hydrogen charging and discharging pretreatment pipeline unit, connected to the preparatory liquid storage tank 51 and the preparatory solid-state hydrogen storage unit 112, wherein the hydrogen charging and discharging pretreatment pipeline unit is configured to transfer the target heat exchange medium to the preparatory solid-state hydrogen storage unit 112 before the preparatory solid-state hydrogen storage unit 112 performs a hydrogen charging and discharging state;

[0090] The first temperature range is the operating temperature range of the solid-state hydrogen storage unit 11 when releasing hydrogen, and the second temperature range is the operating temperature range of the solid-state hydrogen storage unit 11 when charging hydrogen.

[0091] This embodiment can shorten the response time of the solid-state hydrogen storage unit 11 for charging and discharging hydrogen, reduce the start-stop energy consumption through efficient thermal management, shorten the waiting time for switching between charging and discharging hydrogen of the solid-state hydrogen storage unit 11, realize uninterrupted charging and discharging of hydrogen of the solid-state hydrogen storage thermal management system, and improve the charging and discharging efficiency of the solid-state hydrogen storage thermal management system.

[0092] In one embodiment, the hydrogen charging and discharging pretreatment pipeline unit includes:

[0093] The hydrogen charging and discharging pretreatment pipeline is connected to the preliminary liquid storage tank 51 and the preliminary solid hydrogen storage unit 112, so as to realize the temperature regulation transmission of the heat exchange medium between the preliminary liquid storage tank 51 and the preliminary solid hydrogen storage unit 112.

[0094] The liquid outlet control valve 561 of the reserve solid-state hydrogen storage unit is located at the liquid inlet side of the reserve solid-state hydrogen storage unit 112 .

[0095] The preliminary solid-state hydrogen storage unit liquid inlet control valve 562 is located at the liquid outlet side of the preliminary solid-state hydrogen storage unit 112 .

[0096] This embodiment realizes the control between the target solid-state hydrogen storage unit 111 and the reserve liquid storage tank 51, and between the reserve solid-state hydrogen storage unit and the reserve liquid storage tank 51 through the combination of control valves and pipelines, which provides a basis for the recycling of the heat exchange medium in the target solid-state hydrogen storage unit 111 and the pretreatment of the heat exchange medium in the reserve solid-state hydrogen storage unit 112, and can improve the thermal management efficiency of the solid-state hydrogen storage thermal management system.

[0097] In one embodiment, the solid-state hydrogen storage thermal management system further includes:

[0098] A reserve liquid storage tank inlet flowmeter 61, located at the liquid inlet side of the reserve liquid storage tank 51, for measuring the inflow of the heat exchange medium into the reserve liquid storage tank 51;

[0099] A reserve liquid storage tank outlet flow meter 62, located at the liquid outlet side of the reserve liquid storage tank 51, is used to measure the flow rate of the heat exchange medium flowing out of the reserve liquid storage tank 51 and flowing into the reserve solid hydrogen storage unit 112;

[0100] A liquid storage tank temperature sensor, connected to the liquid storage tank 21, and used to measure the temperature of the heat exchange medium in the liquid storage tank 21;

[0101] A solid-state hydrogen storage unit temperature sensor, connected to the solid-state hydrogen storage unit 11, and used to measure the temperature of the heat exchange medium in the solid-state hydrogen storage unit 11;

[0102] The target solid-state hydrogen storage unit liquid outlet control valve 63 is located at the liquid inlet side of the target solid-state hydrogen storage unit 111;

[0103] The target solid-state hydrogen storage unit liquid inlet control valve 64 is located at the liquid outlet side of the target solid-state hydrogen storage unit 111 .

[0104] In this embodiment, the heat exchange medium input or output from the reserve liquid storage tank 51 is counted through the reserve liquid storage tank 51 inlet flowmeter and the reserve liquid storage tank 51 outlet flowmeter to accurately control the storage amount of the heat exchange medium in the reserve liquid storage tank 51. The liquid storage tank temperature sensor and the solid-state hydrogen storage unit temperature sensor can realize temperature monitoring of the liquid storage tank and the solid-state hydrogen storage unit to improve the accuracy of the solid-state hydrogen storage thermal management system. The target solid-state hydrogen storage unit liquid inlet control valve 64 and the target solid-state hydrogen storage unit liquid outlet control valve 63 can realize the recovery and reuse of the heat exchange medium in the target solid-state hydrogen storage unit 111, thereby saving energy consumption.

[0105] Reference Figure 2 The present invention also provides a solid-state hydrogen storage thermal management method, using the above-mentioned solid-state hydrogen storage thermal management system, comprising:

[0106] S21, identifying a target operating state of the solid-state hydrogen storage system, wherein the target operating state includes a hydrogen discharging operating state or a hydrogen charging operating state;

[0107] S22, if the target working state is the hydrogen release working state, open the first control valve 12 and the second control valve 13 corresponding to at least one group of the target solid-state hydrogen storage units 111, so that at least one group of the target solid-state hydrogen storage units 111, the heating liquid storage module and the heat exchanger 32 form a connecting loop, start the heater 22 and turn off the chiller 31, and control the heater 22 to heat the heat exchange medium of the connecting loop to the first temperature range of the solid-state hydrogen storage unit 11;

[0108] S23. If the target operating state is the hydrogen charging operating state, open the first control valve 12 and the second control valve 13 corresponding to at least one group of the target solid-state hydrogen storage units 111, so that at least one group of the target solid-state hydrogen storage units 111, the heating liquid storage module and the heat exchanger 32 form a connecting loop, start the chiller 31 and turn off the heater 22, and control the chiller 31 to cool the heat exchange medium of the connecting loop to the second temperature range of the solid-state hydrogen storage unit 11.

[0109] The present embodiment can simultaneously control the first control valve 12 and the second control valve 13 corresponding to multiple target solid-state hydrogen storage units 111, and realize synchronous operation of multiple solid-state hydrogen storage units 11 through the linkage mechanism of multiple control valves. Each solid-state hydrogen storage unit 11 can be connected to the heating liquid storage module and the cooling module through an independent circulation loop, and each different solid-state hydrogen storage unit 11 can be independently temperature-regulated according to its operating state, thereby realizing precise thermal control of the solid-state hydrogen storage thermal management system and rapid response of hydrogen charging and discharging.

[0110] In one embodiment, the solid-state hydrogen storage thermal management method further includes:

[0111] When the target working state is the hydrogen release working state and the heat exchange medium of the communication circuit is heated to the first temperature range of the solid-state hydrogen storage unit 11, collecting the hydrogen release amount of the target solid-state hydrogen storage unit 111;

[0112] When the hydrogen release amount of the target solid-state hydrogen storage unit 111 reaches a preset hydrogen release value, the liquid inlet control valve 52 is opened to input the target heat exchange medium into the reserve liquid storage tank 51. When the inflow of the target heat exchange medium in the reserve liquid storage tank 51 reaches the target liquid storage amount, the liquid inlet control valve 52 is closed, and the liquid outlet water pump 55 and the reserve solid-state hydrogen storage unit liquid inlet control valve 562 are opened. When the outflow of the target heat exchange medium reaches a preset outflow, the liquid outlet water pump 55 and the reserve solid-state hydrogen storage unit liquid inlet control valve 562 are closed to preheat the temperature of the heat exchange medium in the reserve solid-state hydrogen storage unit 112 to a first temperature range.

[0113] It should be explained that when the amount of hydrogen released by the target solid-state hydrogen storage unit 111 reaches a preset hydrogen release value (for example, the preset hydrogen release amount is 80% of the target solid-state hydrogen storage unit 111, and the preset hydrogen release value here can be flexibly set according to actual needs. This is only an exemplary explanation and is not specifically limited), the control strategy of the heat exchange medium is started, that is, the liquid inlet control valve 52 is opened, and the heat exchange medium (that is, the target heat exchange medium) heated to the first temperature range by the heater 22 is introduced into the preliminary liquid storage tank 51. When the target heat exchange medium flowing into the preliminary liquid storage tank 51 reaches the target amount, the inflow of the target heat exchange medium is stopped, and the liquid outlet water pump 55 and the preliminary solid-state hydrogen storage unit liquid inlet control valve 562 are started to ensure that the target heat exchange medium is transported to the preliminary solid-state hydrogen storage unit 112, so as to realize the preheating of the preliminary solid-state hydrogen storage unit 112, thereby shortening the hydrogen release waiting time of the preliminary solid-state hydrogen storage unit 112, and thereby improving the solid-state hydrogen storage hydrogen release efficiency.

[0114] This embodiment ensures rapid response and efficient operation of the solid-state hydrogen storage system while further improving the overall performance and flexibility of the multi-unit system through precise thermal management.

[0115] In one embodiment, the solid-state hydrogen storage thermal management method further includes:

[0116] When the amount of hydrogen released from the target solid-state hydrogen storage unit 111 reaches the amount of hydrogen stored, the target solid-state hydrogen storage unit 111 completes the hydrogen release work, closes the first control valve 12 and the second control valve 13 corresponding to the target solid-state hydrogen storage unit 111, and opens the target solid-state hydrogen storage unit liquid outlet control valve 63 and the liquid inlet end water pump 54 corresponding to the target solid-state hydrogen storage unit 111 to input the target heat exchange medium in the target solid-state hydrogen storage unit 111 into the reserve liquid storage tank 51.

[0117] When the amount of hydrogen released by the target solid-state hydrogen storage unit 111 reaches the amount of hydrogen stored (i.e., when the target solid-state hydrogen storage unit 111 finishes releasing hydrogen), the first control valve 12 and the second control valve 13 corresponding to the solid-state hydrogen storage unit 11 are closed, and the solid-state hydrogen storage unit 112 is switched to the standby solid-state hydrogen storage unit 112. At the same time, the standby solid-state hydrogen storage unit 112 has reached the first temperature range, so that the standby solid-state hydrogen storage unit 112 has a greatly shortened waiting time for releasing hydrogen. It should be noted that the target solid-state hydrogen storage unit 111 here can be a single target solid-state hydrogen storage unit 111 that releases hydrogen alone, or multiple target solid-state hydrogen storage units 111 that release hydrogen alone, and the standby solid-state hydrogen storage unit 112 can be one or more, and can be flexibly set according to actual conditions.

[0118] When the target heat exchange medium in the target solid hydrogen storage unit 111 completely flows into the reserve liquid storage tank 51, the target solid hydrogen storage unit liquid outlet control valve 63 and the liquid inlet end water pump 54 corresponding to the target solid hydrogen storage unit 111 are closed;

[0119] The preparatory solid-state hydrogen storage unit 112 in the hydrogen release working state is automatically converted into the target solid-state hydrogen storage unit 111. When the hydrogen release amount of the target solid-state hydrogen storage unit 111 reaches the preset hydrogen release value, the preparatory solid-state hydrogen storage unit liquid inlet control valve 562 and the liquid outlet water pump 55 of the next hydrogen release sequence are opened according to the hydrogen release working sequence of the solid-state hydrogen storage unit 11, so as to input the target heat exchange medium of the preparatory liquid storage tank 51 into the preparatory solid-state hydrogen storage unit 112 of the next hydrogen release sequence, complete the preheating of the preparatory solid-state hydrogen storage unit 112, repeat the above cycle until the last target solid-state hydrogen storage unit 111 completes the hydrogen release work, and the last target solid-state hydrogen storage unit 111 refers to the target solid-state hydrogen storage unit that performs the hydrogen release operation last according to the hydrogen release working sequence;

[0120] Open the target solid-state hydrogen storage unit liquid outlet control valve 63 and the liquid inlet end water pump 54 corresponding to the last target solid-state hydrogen storage unit 111, until the target heat exchange medium of the last target solid-state hydrogen storage unit 111 is completely input into the reserve liquid storage tank 51, and close the target solid-state hydrogen storage unit liquid outlet control valve 63 and the liquid inlet end water pump 54 corresponding to the last target solid-state hydrogen storage unit 111;

[0121] The liquid outlet water pump 55 and the liquid outlet control valve 53 are turned on to input the target heat exchange medium in the reserve liquid storage tank 51 into the liquid storage tank 21. After the target heat exchange medium in the reserve liquid storage tank 51 is completely input into the liquid storage tank 21, the liquid outlet water pump 55 and the liquid outlet control valve 53 are turned off to restore the solid-state hydrogen storage system to its initial state, thereby completing the hydrogen release operation of the solid-state hydrogen storage system.

[0122] It should be explained that when the solid-state hydrogen storage thermal management system is dehydrogenating, the operator will preset the hydrogen desorption sequence of the solid-state hydrogen storage unit 11. The next hydrogen desorption sequence refers to the solid-state hydrogen storage unit 11 that is about to dehydrogenate after the target solid-state hydrogen storage unit 111 according to the preset hydrogen desorption sequence of the solid-state hydrogen storage unit 11. The last target solid-state hydrogen storage unit 111 can be one or more, and can be flexibly set according to actual conditions.

[0123] In this embodiment, after the hydrogen is discharged in the target solid-state hydrogen storage unit 111, the target heat exchange medium in the target solid-state hydrogen storage unit 111 is recovered to the preliminary liquid storage tank 51, and then the target heat exchange medium is input from the preliminary liquid storage tank 51 to the preliminary solid-state hydrogen storage unit 112 through the preliminary solid-state hydrogen storage unit liquid inlet control valve 562 and the liquid outlet water pump 55, so that the preliminary solid-state hydrogen storage unit 112 is preheated by the recovered target heat exchange medium, thereby shortening the hydrogen discharge response time of the preliminary solid-state hydrogen storage unit 112 while achieving the flow and reuse of the target heat exchange medium, which can greatly save the heat exchange medium consumption and energy consumption, and improve the thermal management efficiency of the solid-state hydrogen storage thermal management system.

[0124] In one embodiment, the solid-state hydrogen storage thermal management method further includes:

[0125] When the target working state is the hydrogen charging working state and the heat exchange medium of the communication circuit is cooled to the second temperature range of the solid-state hydrogen storage unit 11, collecting the hydrogen absorption amount of the target solid-state hydrogen storage unit 111;

[0126] When the hydrogen absorption amount of the target solid-state hydrogen storage unit 111 reaches a preset hydrogen charging value, the liquid inlet control valve 52 is opened to input the target heat exchange medium into the reserve liquid storage tank 51. When the inflow amount of the target heat exchange medium into the reserve liquid storage tank 51 reaches the target liquid storage amount, the liquid inlet control valve 52 is closed, the liquid outlet water pump 55 and the reserve solid-state hydrogen storage unit liquid inlet control valve 562 are opened. When the outflow amount of the target heat exchange medium reaches a preset outflow amount, the liquid outlet water pump 55 and the reserve solid-state hydrogen storage unit liquid inlet control valve 562 are closed to make the temperature of the heat exchange medium in the reserve solid-state hydrogen storage unit 112 within the second temperature range.

[0127] It should be explained that when the hydrogen filling amount of the target solid-state hydrogen storage unit 111 reaches a preset hydrogen filling value (for example, the preset hydrogen filling amount is 80% of the target solid-state hydrogen storage unit 111, and the preset hydrogen filling value can be flexibly set according to actual needs. This is only an exemplary explanation and is not specifically limited), the control strategy of the heat exchange medium is started, that is, the liquid inlet control valve 52 is opened, and the heat exchange medium (that is, the target heat exchange medium) cooled to the second temperature range by the heat exchanger 32 is introduced into the preliminary liquid storage tank 51. When the target heat exchange medium flows into the preliminary liquid storage tank 51 to obtain the target amount, the inflow of the target heat exchange medium is stopped, and the liquid outlet water pump 55 and the preliminary solid-state hydrogen storage unit liquid inlet control valve 562 are started to ensure that the target heat exchange medium is transported to the preliminary solid-state hydrogen storage unit 112, so as to realize pre-cooling of the preliminary solid-state hydrogen storage unit 112, thereby shortening the hydrogen charging waiting time of the preliminary solid-state hydrogen storage unit 112, and thereby improving the solid-state hydrogen storage hydrogen charging efficiency.

[0128] This embodiment ensures rapid response and efficient operation of the solid-state hydrogen storage system while further improving the overall performance and flexibility of the multi-unit system through precise thermal management.

[0129] In one embodiment, the solid-state hydrogen storage thermal management method further includes:

[0130] When the hydrogen absorption amount of the target solid-state hydrogen storage unit 111 reaches the hydrogen storage amount, the target solid-state hydrogen storage unit 111 completes the hydrogen filling work, closes the first control valve 12 and the second control valve 13 corresponding to the target solid-state hydrogen storage unit 111, and opens the target solid-state hydrogen storage unit liquid outlet control valve 63 and the liquid inlet end water pump 54 corresponding to the target solid-state hydrogen storage unit 111 to input the target heat exchange medium in the target solid-state hydrogen storage unit 111 into the reserve liquid storage tank 51.

[0131] When the hydrogen absorption amount of the target solid-state hydrogen storage unit 111 reaches the hydrogen storage amount (i.e., when the target solid-state hydrogen storage unit 111 is finished being charged with hydrogen), the first control valve 12 and the second control valve 13 corresponding to the solid-state hydrogen storage unit 11 are closed, and the solid-state hydrogen storage unit 112 is switched to the reserve solid-state hydrogen storage unit 112. At the same time, the reserve solid-state hydrogen storage unit 112 has reached the second temperature range, so that the reserve solid-state hydrogen storage unit 112 is greatly shortened. It should be noted that the target solid-state hydrogen storage unit 111 here can be a target solid-state hydrogen storage unit 111 that releases hydrogen alone, or multiple target solid-state hydrogen storage units 111 that release hydrogen alone, and the reserve solid-state hydrogen storage unit 112 can be one or more, and can be flexibly set according to actual conditions.

[0132] When the target heat exchange medium in the target solid hydrogen storage unit 111 completely flows into the reserve liquid storage tank 51, the target solid hydrogen storage unit liquid outlet control valve 63 and the liquid inlet end water pump 54 corresponding to the target solid hydrogen storage unit 111 are closed;

[0133] The preparatory solid-state hydrogen storage unit 112 in the hydrogen charging working state is automatically converted into the target solid-state hydrogen storage unit 111. When the hydrogen absorption amount of the target solid-state hydrogen storage unit 111 reaches the preset hydrogen storage amount, according to the hydrogen charging working sequence of the solid-state hydrogen storage unit 11, the liquid inlet control valve 562 of the preparatory solid-state hydrogen storage unit of the next hydrogen charging sequence and the liquid outlet water pump 55 are opened to input the target heat exchange medium of the preparatory liquid storage tank 51 into the preparatory solid-state hydrogen storage unit 112 of the next hydrogen charging sequence, and complete the pre-cooling of the preparatory solid-state hydrogen storage unit 112. Repeat the above cycle until the last target solid-state hydrogen storage unit 111 completes the hydrogen charging work. The last target solid-state hydrogen storage unit 111 refers to the target solid-state hydrogen storage unit that performs the hydrogen charging operation last according to the hydrogen charging working sequence;

[0134] Open the target solid-state hydrogen storage unit liquid outlet control valve 63 and the liquid inlet end water pump 54 corresponding to the last target solid-state hydrogen storage unit 111, until the target heat exchange medium of the last target solid-state hydrogen storage unit 111 is completely input into the reserve liquid storage tank 51, and close the target solid-state hydrogen storage unit liquid outlet control valve 63 and the liquid inlet end water pump 54 corresponding to the last target solid-state hydrogen storage unit 111;

[0135] The liquid outlet water pump 55 and the liquid outlet control valve 53 are turned on to input the target heat exchange medium in the reserve liquid storage tank 51 into the liquid storage tank 21. After the target heat exchange medium in the reserve liquid storage tank 51 is completely input into the liquid storage tank 21, the liquid outlet water pump 55 and the liquid outlet control valve 53 are turned off to restore the solid-state hydrogen storage system to its initial state, thereby completing the hydrogen charging operation of the solid-state hydrogen storage system.

[0136] It should be explained that when the solid-state hydrogen storage thermal management system is charging hydrogen, the operator will preset the charging sequence of the solid-state hydrogen storage unit 11. The next charging sequence refers to the solid-state hydrogen storage unit 11 that is about to be charged with hydrogen after the target solid-state hydrogen storage unit 111 according to the preset charging sequence of the solid-state hydrogen storage unit 11.

[0137] In this embodiment, after the target solid-state hydrogen storage unit 111 is fully charged with hydrogen, the target heat exchange medium in the target solid-state hydrogen storage unit 111 is recovered into the preliminary liquid storage tank 51, and then the target heat exchange medium is input from the preliminary liquid storage tank 51 into the preliminary solid-state hydrogen storage unit 112 through the preliminary solid-state hydrogen storage unit liquid inlet control valve 562 and the liquid outlet water pump 55, so that the preliminary solid-state hydrogen storage unit 112 is pre-cooled by the recovered target heat exchange medium, thereby shortening the hydrogen charging response time of the preliminary solid-state hydrogen storage unit 112 and realizing the flow and reuse of the target heat exchange medium, which can greatly save the heat exchange medium consumption and energy consumption, and improve the thermal management efficiency of the solid-state hydrogen storage thermal management system.

[0138] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A solid-state hydrogen storage thermal management system, characterized in that: include: A solid-state hydrogen storage module, comprising a plurality of solid-state hydrogen storage units (11) connected in parallel, and a first control valve (12) and a second control valve (13) respectively located at two ends of each of the solid-state hydrogen storage units (11) for controlling the opening and closing of a pipeline of the solid-state hydrogen storage unit, wherein the solid-state hydrogen storage unit (11) comprises a target solid-state hydrogen storage unit (111) and a reserve solid-state hydrogen storage unit (112), wherein the target solid-state hydrogen storage unit (111) refers to the solid-state hydrogen storage unit (11) in a hydrogen charging and discharging state, and the reserve solid-state hydrogen storage unit (112) refers to the solid-state hydrogen storage unit (11) about to enter a hydrogen charging and discharging state; A heating liquid storage module, comprising a liquid storage tank (21) and a heater (22), wherein the heater (22) is connected to the liquid storage tank (21), and two ends of the heating liquid storage module are respectively connected to each of the solid-state hydrogen storage units (11); A heat exchanger (32), wherein a cold side inlet and a cold side outlet of the heat exchanger (32) are respectively connected to two ends of the cooling module, a hot side inlet of the heat exchanger (32) is connected to the liquid storage tank (21), and a hot side outlet of the heat exchanger (32) is connected to the solid-state hydrogen storage unit (11); A cooling module, comprising a water chiller (31), wherein the water chiller (31) is used to cool the heat exchange medium flowing out of the liquid storage tank (21) through the heat exchanger (32) in a hydrogen-filled state; A hydrogen charging and discharging pretreatment module, configured to adjust the heat exchange medium of at least one of the preparatory solid-state hydrogen storage units (112) to a first temperature range before the preparatory solid-state hydrogen storage unit (112) enters a hydrogen discharging state, or to adjust the heat exchange medium of at least one of the preparatory solid-state hydrogen storage units (112) to a second temperature range before the preparatory solid-state hydrogen storage unit (112) enters a hydrogen charging state; The first control valve (12) and the second control valve (13) corresponding to at least one of the solid-state hydrogen storage units (11) are opened, the heater (22) heats the heat exchange medium flowing through the solid-state hydrogen storage unit (11) to a first temperature range corresponding to when the solid-state hydrogen storage unit (11) starts to release hydrogen, or the chiller (31) cools the heat exchange medium to a second temperature range corresponding to when the solid-state hydrogen storage unit (11) starts to charge hydrogen.

2. The solid-state hydrogen storage thermal management system according to claim 1, characterized in that: Also includes: A driving water pump (4), the driving water pump (4) being located on a circulation loop formed by the solid hydrogen storage module, the heating liquid storage module and the heat exchanger (32), and being used to provide power for the circulation of the heat exchange medium.

3. The solid-state hydrogen storage thermal management system according to claim 2, characterized in that: The hydrogen charging and discharging pretreatment module comprises: a preliminary liquid storage tank (51), used for receiving, storing and releasing a target heat exchange medium, wherein the target heat exchange medium refers to a heat exchange medium having a temperature within the first temperature range, or a heat exchange medium having a temperature within the second temperature range, and the preliminary liquid storage tank (51) is in communication with the liquid storage tank (21); A liquid inlet control valve (52) located at the liquid inlet side of the reserve liquid storage tank (51); A liquid inlet end water pump (54), located between the liquid inlet control valve (52) and the reserve liquid storage tank (51), and used to provide power for inputting the target heat exchange medium into the reserve liquid storage tank (51); A liquid outlet control valve (53) located at the liquid outlet side of the reserve liquid storage tank (51); A liquid outlet water pump (55), located between the liquid outlet control valve (53) and the reserve liquid storage tank (51), and used to provide power for the target heat exchange medium to be output from the reserve liquid storage tank (51); A hydrogen charging and discharging pretreatment pipeline unit, connected to the preparatory liquid storage tank (51) and the preparatory solid-state hydrogen storage unit (112), the hydrogen charging and discharging pretreatment pipeline unit being configured to transfer the target heat exchange medium to the preparatory solid-state hydrogen storage unit (112) before the preparatory solid-state hydrogen storage unit (112) performs a hydrogen charging and discharging state; The first temperature range is the operating temperature range of the solid-state hydrogen storage unit (11) when releasing hydrogen, and the second temperature range is the operating temperature range of the solid-state hydrogen storage unit (11) when charging hydrogen.

4. The solid-state hydrogen storage thermal management system according to claim 3, characterized in that: The hydrogen charging and discharging pretreatment pipeline unit comprises: A hydrogen charging and discharging pretreatment pipeline, connected to the preparatory liquid storage tank (51) and the preparatory solid hydrogen storage unit (112); A liquid outlet control valve (561) of the reserve solid-state hydrogen storage unit, located at the liquid inlet side of the reserve solid-state hydrogen storage unit (112); The reserve solid-state hydrogen storage unit liquid inlet control valve (562) is located at the liquid outlet side of the reserve solid-state hydrogen storage unit (112).

5. The solid-state hydrogen storage thermal management system according to claim 4, characterized in that: Also includes: A reserve liquid storage tank inlet flow meter (61), located at the liquid inlet side of the reserve liquid storage tank (51), and used to measure the amount of heat exchange medium flowing into the reserve liquid storage tank (51); A reserve liquid storage tank outlet flow meter (62), located at the liquid outlet side of the reserve liquid storage tank (51), and used to measure the flow rate of the heat exchange medium flowing out of the reserve liquid storage tank (51) and flowing into the reserve solid hydrogen storage unit (112); A liquid storage tank temperature sensor, connected to the liquid storage tank (21) and used to measure the temperature of the heat exchange medium in the liquid storage tank (21); A solid-state hydrogen storage unit temperature sensor, connected to the solid-state hydrogen storage unit (11) and used to measure the temperature of the heat exchange medium in the solid-state hydrogen storage unit (11); A target solid-state hydrogen storage unit liquid outlet control valve (63), located at the liquid inlet side of the target solid-state hydrogen storage unit (111), and used to control the opening and closing of a pipeline between the target solid-state hydrogen storage unit (111) and an input end of a reserve liquid storage tank (51); The target solid-state hydrogen storage unit liquid inlet control valve (64) is located at the liquid outlet side of the target solid-state hydrogen storage unit (111) and is used to control the opening and closing of the pipeline between the target solid-state hydrogen storage unit (111) and the output end of the reserve liquid storage tank (51).

6. A solid-state hydrogen storage thermal management method, using the solid-state hydrogen storage thermal management system according to claim 5, characterized in that: include: Identifying a target operating state of the solid-state hydrogen storage thermal management system, wherein the target operating state includes a hydrogen discharge operating state or a hydrogen charge operating state; If the target working state is the hydrogen release working state, the first control valve (12) and the second control valve (13) corresponding to at least one group of the target solid-state hydrogen storage units (111) are opened, so that at least one group of the target solid-state hydrogen storage units (111), the heating liquid storage module and the heat exchanger (32) form a communication loop, the heater (22) is started and the chiller (31) is turned off, and the heater (22) is controlled to heat the heat exchange medium of the communication loop to a first temperature range of the solid-state hydrogen storage unit (11); If the target operating state is the hydrogen charging operating state, the first control valve (12) and the second control valve (13) corresponding to at least one group of the target solid-state hydrogen storage units (111) are opened, so that at least one group of the target solid-state hydrogen storage units (111), the heating liquid storage module and the heat exchanger (32) form a connecting loop, the chiller (31) is started and the heater (22) is turned off, and the chiller (31) is controlled to cool the heat exchange medium of the connecting loop to a second temperature range of the solid-state hydrogen storage unit (11).

7. The solid-state hydrogen storage thermal management method according to claim 6, characterized in that: Also includes: When the target working state is the hydrogen release working state and the heat exchange medium of the communication circuit is heated to a first temperature range of the solid-state hydrogen storage unit (11), collecting the hydrogen release amount of the target solid-state hydrogen storage unit (111); When the amount of hydrogen released by the target solid-state hydrogen storage unit (111) reaches a preset hydrogen release value, the liquid inlet control valve (52) is opened to input the target heat exchange medium into the reserve liquid storage tank (51); when the amount of the target heat exchange medium flowing into the reserve liquid storage tank (51) reaches a target liquid storage amount, the liquid inlet control valve (52) is closed, the liquid outlet water pump (55) and the reserve solid-state hydrogen storage unit liquid inlet control valve (562) are opened; when the outflow of the target heat exchange medium reaches a preset outflow amount, the liquid outlet water pump (55) and the reserve solid-state hydrogen storage unit liquid inlet control valve (562) are closed to preheat the temperature of the heat exchange medium in the reserve solid-state hydrogen storage unit (112) to a first temperature range.

8. The solid-state hydrogen storage thermal management method according to claim 7, characterized in that: Also includes: When the amount of hydrogen released by the target solid-state hydrogen storage unit (111) reaches the amount of hydrogen stored, the target solid-state hydrogen storage unit (111) completes the hydrogen release work, closes the first control valve (12) and the second control valve (13) corresponding to the target solid-state hydrogen storage unit (111), and opens the target solid-state hydrogen storage unit liquid outlet control valve (63) and the liquid inlet end water pump (54) corresponding to the target solid-state hydrogen storage unit (111), so as to input the target heat exchange medium in the target solid-state hydrogen storage unit (111) into the reserve liquid storage tank (51); When the target heat exchange medium in the target solid-state hydrogen storage unit (111) completely flows into the reserve liquid storage tank (51), closing the target solid-state hydrogen storage unit liquid outlet control valve (63) and the liquid inlet end water pump (54) corresponding to the target solid-state hydrogen storage unit (111); The preparation solid-state hydrogen storage unit (112) in the hydrogen release working state is automatically converted into the target solid-state hydrogen storage unit (111); when the hydrogen release amount of the target solid-state hydrogen storage unit (111) reaches a preset hydrogen release value, the liquid inlet control valve (562) and the liquid outlet water pump (55) of the preparation solid-state hydrogen storage unit of the next hydrogen release sequence are opened according to the hydrogen release working sequence of the solid-state hydrogen storage unit (11), so as to input the target heat exchange medium of the preparation liquid storage tank (51) into the preparation solid-state hydrogen storage unit (112) of the next hydrogen release sequence, thereby completing the preheating of the preparation solid-state hydrogen storage unit (112); and the above cycle is repeated until the last target solid-state hydrogen storage unit completes the hydrogen release work, wherein the last target solid-state hydrogen storage unit refers to the target solid-state hydrogen storage unit that performs the hydrogen release operation last according to the hydrogen release working sequence; Opening the target solid-state hydrogen storage unit liquid outlet control valve (63) and the liquid inlet end water pump (54) corresponding to the last target solid-state hydrogen storage unit until the target heat exchange medium of the last target solid-state hydrogen storage unit is completely input into the reserve liquid storage tank (51), and closing the target solid-state hydrogen storage unit liquid outlet control valve (63) and the liquid inlet end water pump (54) corresponding to the last target solid-state hydrogen storage unit; The liquid outlet water pump (55) and the liquid outlet control valve (53) are turned on to input the target heat exchange medium in the reserve liquid storage tank (51) into the liquid storage tank (21); after the target heat exchange medium in the reserve liquid storage tank (51) is completely input into the liquid storage tank (21), the liquid outlet water pump (55) and the liquid outlet control valve (53) are turned off to restore the solid-state hydrogen storage thermal management system to an initial state, thereby completing the hydrogen release operation of the solid-state hydrogen storage thermal management system.

9. The solid-state hydrogen storage thermal management method according to claim 6, characterized in that: Also includes: When the target operating state is the hydrogen charging operating state and the heat exchange medium of the communication circuit is cooled to a second temperature range of the solid-state hydrogen storage unit (11), collecting the hydrogen absorption amount of the target solid-state hydrogen storage unit (111); When the hydrogen absorption amount of the target solid-state hydrogen storage unit (111) reaches a preset hydrogen charging value, the liquid inlet control valve (52) is opened to input the target heat exchange medium into the reserve liquid storage tank (51); when the inflow amount of the target heat exchange medium into the reserve liquid storage tank (51) reaches a target liquid storage amount, the liquid inlet control valve (52) is closed, the liquid outlet water pump (55) and the reserve solid-state hydrogen storage unit liquid inlet control valve (562) are opened; when the outflow amount of the target heat exchange medium reaches a preset outflow amount, the liquid outlet water pump (55) and the reserve solid-state hydrogen storage unit liquid inlet control valve (562) are closed, so that the temperature of the heat exchange medium in the reserve solid-state hydrogen storage unit (112) is within a second temperature range.

10. The solid-state hydrogen storage thermal management method according to claim 9, characterized in that: Also includes: When the hydrogen absorption amount of the target solid-state hydrogen storage unit (111) reaches the hydrogen storage amount, the target solid-state hydrogen storage unit (111) completes the hydrogen charging work, closes the first control valve (12) and the second control valve (13) corresponding to the target solid-state hydrogen storage unit (111), and opens the target solid-state hydrogen storage unit liquid outlet control valve (63) and the liquid inlet end water pump (54) corresponding to the target solid-state hydrogen storage unit (111), so as to input the target heat exchange medium in the target solid-state hydrogen storage unit (111) into the reserve liquid storage tank (51); When the target heat exchange medium in the target solid-state hydrogen storage unit (111) completely flows into the reserve liquid storage tank (51), closing the target solid-state hydrogen storage unit liquid outlet control valve (63) and the liquid inlet end water pump (54) corresponding to the target solid-state hydrogen storage unit (111); The preparation solid-state hydrogen storage unit (112) in the hydrogen charging working state is automatically converted into the target solid-state hydrogen storage unit (111); when the hydrogen absorption amount of the target solid-state hydrogen storage unit (111) reaches a preset hydrogen storage amount, the liquid inlet control valve (562) and the liquid outlet water pump (55) of the preparation solid-state hydrogen storage unit of the next hydrogen charging sequence are opened according to the hydrogen charging working sequence of the solid-state hydrogen storage unit (11), so as to input the target heat exchange medium of the preparation liquid storage tank (51) into the preparation solid-state hydrogen storage unit (112) of the next hydrogen charging sequence, thereby completing the pre-cooling of the preparation solid-state hydrogen storage unit (112); and the above cycle is repeated until the last target solid-state hydrogen storage unit completes the hydrogen charging work, wherein the last target solid-state hydrogen storage unit refers to the target solid-state hydrogen storage unit that performs the hydrogen charging operation last according to the hydrogen charging working sequence; Opening the target solid-state hydrogen storage unit liquid outlet control valve (63) and the liquid inlet end water pump (54) corresponding to the last target solid-state hydrogen storage unit until the target heat exchange medium of the last target solid-state hydrogen storage unit is completely input into the reserve liquid storage tank (51), and closing the target solid-state hydrogen storage unit liquid outlet control valve (63) and the liquid inlet end water pump (54) corresponding to the last target solid-state hydrogen storage unit; The liquid outlet water pump (55) and the liquid outlet control valve (53) are turned on to input the target heat exchange medium in the reserve liquid storage tank (51) into the liquid storage tank (21); after the target heat exchange medium in the reserve liquid storage tank (51) is completely input into the liquid storage tank (21), the liquid outlet water pump (55) and the liquid outlet control valve (53) are turned off to restore the solid-state hydrogen storage thermal management system to an initial state, thereby completing the hydrogen charging operation of the solid-state hydrogen storage thermal management system.

Images