Waste heat recovery system, new energy vehicle, control method, storage medium and electronic device

Abstract

The application discloses a waste heat recovery system, a new energy automobile, a control method, a storage medium and an electronic device. The method comprises the following steps: the system comprises a hydrogen production device, a fuel cell, a buffer water tank and a hydrogen storage device, and further comprises: a first heat recovery branch, an inlet end of the first heat recovery branch is communicated with an outlet end of the hydrogen production device; a second heat recovery branch, an inlet end of the second heat recovery branch is communicated with an outlet end of the fuel cell; after the first heat recovery branch and the second heat recovery branch are merged, an inlet end of the buffer water tank is communicated, an outlet end of the buffer water tank is communicated with an inlet end of the hydrogen storage device, and a heating device is arranged in the buffer water tank; the hydrogen storage device, an inlet end of the hydrogen production device is communicated with an outlet end of the hydrogen storage device through a first backflow pipeline, and an inlet end of the fuel cell is also communicated with the outlet end of the hydrogen storage device through a second backflow pipeline. Through the application, the heat generated during the operation of the hydrogen production device and the fuel cell can be fully recycled and utilized, and the waste of energy is avoided.

Description

Technical Field

[0001] This invention relates to the field of hydrogen storage technology, and more specifically, to a waste heat recovery system, a new energy vehicle, a control method, a storage medium, and electronic equipment. Background Technology

[0002] Solid-state hydrogen storage technology achieves hydrogen storage by combining hydrogen with storage materials through physical or chemical means. The main solid-state hydrogen storage technology routes can be divided into metal hydrides, coordination hydrides, carbon materials, metal-organic framework materials, and hydrate hydrogen storage.

[0003] During hydrogen release, metal hydrides absorb a large amount of heat to decompose and release hydrogen gas. Both hydrogen production and the continuous operation of fuel cells generate heat. Especially during continuous operation of the fuel cell system, the high heat generated can remove moisture from the reaction process, causing dehydration of the proton exchange membrane, lowering the thermodynamic equilibrium potential, increasing hydrogen permeation and causing voltage loss. Furthermore, since the proton exchange membrane is a polymer electrolyte, excessively high temperatures can make the membrane brittle, reducing its strength and leading to perforation. This can cause hydrogen to mix with air in the flow channels, resulting in safety accidents. Currently, the heat generated during hydrogen production and fuel cell operation is generally dissipated into the air, resulting in energy waste.

[0004] There is currently no effective solution to the problem of energy waste caused by the heat generated during hydrogen production and fuel cell operation being released into the air. Summary of the Invention

[0005] This invention provides a waste heat recovery system, a new energy vehicle, a control method, a storage medium, and an electronic device to solve the problem in the prior art of dissipating the heat generated during hydrogen production and fuel cell operation into the air, resulting in energy waste.

[0006] To address the aforementioned technical problems, this invention provides a waste heat recovery system, comprising a hydrogen production device, a fuel cell, a buffer tank, and a hydrogen storage device, and further comprising:

[0007] The first heat recovery branch has its inlet end connected to the outlet end of the hydrogen production unit;

[0008] The second heat recovery branch has its inlet end connected to the outlet end of the fuel cell;

[0009] After the first heat recovery branch and the second heat recovery branch merge, they are connected to the inlet end of the buffer water tank. The outlet end of the buffer water tank is connected to the inlet end of the hydrogen storage device. A heating device is installed in the buffer water tank.

[0010] The hydrogen storage device has its outlet end connected to the inlet end of the hydrogen production device via a first reflux pipeline, and its outlet end is also connected to the inlet end of the fuel cell via a second reflux pipeline.

[0011] Furthermore, the heating device is located at the bottom of the buffer water tank, and the pipe at the outlet end of the buffer water tank passes through the interior of the heating device.

[0012] Furthermore, the system also includes:

[0013] The first control valve is installed on the first heat recovery branch;

[0014] The fifth control valve is located on the second heat recovery branch.

[0015] Furthermore, the system also includes:

[0016] The third control valve is installed on the pipeline between the buffer tank and the hydrogen storage device.

[0017] Furthermore, the system also includes:

[0018] The fourth control valve is installed on the first return pipeline;

[0019] The fifth control valve is located on the second return line.

[0020] Furthermore, the system also includes:

[0021] The first temperature sensor is installed on the pipe at the outlet end of the buffer water tank;

[0022] A second temperature sensor is installed on the hydrogen storage device.

[0023] The present invention also provides a new energy vehicle, including the above-mentioned waste heat recovery system.

[0024] The present invention also provides a control method applied to the above-mentioned waste heat recovery system, the control method comprising:

[0025] The first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch is opened according to the operating status of the hydrogen production unit and the fuel cell.

[0026] The target hydrogen release temperature is determined based on the hydrogen storage material of the hydrogen storage device, and the target value of the outlet temperature of the buffer water tank is determined based on the target hydrogen release temperature and the temperature of the hydrogen storage device.

[0027] The opening and closing of the third control valve on the pipeline between the buffer tank and the hydrogen storage device and the heating device in the buffer tank are controlled according to the outlet temperature of the buffer tank and the target value.

[0028] Further, controlling the opening and closing of the third control valve on the pipeline between the buffer water tank and the hydrogen storage device and the heating device in the buffer water tank based on the outlet temperature of the buffer water tank and the target value includes:

[0029] Determine whether the outlet temperature of the buffer tank has reached the target value;

[0030] If so, the third control valve on the pipeline between the buffer tank and the hydrogen storage device will be opened;

[0031] If not, the third control valve is closed, and the heating device on the buffer tank is turned on until the outlet temperature of the buffer tank reaches the target value, at which point the third control valve is opened.

[0032] Furthermore, after the third control valve is opened, the method further includes:

[0033] The opening and closing of the fourth control valve on the first return pipeline or the fifth control valve on the second return pipeline is controlled according to the heat exchange duration.

[0034] Furthermore, controlling the opening and closing of the fourth control valve on the first return line or the fifth control valve on the second return line according to the heat exchange duration includes:

[0035] Determine whether the heat exchange duration has reached the preset time;

[0036] If so, then the fourth control valve on the first return line or the fifth control valve on the second return line will be opened;

[0037] If not, then the fourth control valve on the first return line or the fifth control valve on the second return line will be closed.

[0038] Furthermore, controlling the opening of the first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch according to the operating status of the hydrogen production unit and the fuel cell includes:

[0039] If the hydrogen production unit is working but the fuel cell is not working, then the first control valve is opened.

[0040] If the fuel cell is working but the hydrogen production unit is not, the second control valve is opened.

[0041] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the above-described control method.

[0042] The present invention also provides an electronic device, comprising:

[0043] One or more processors;

[0044] A storage device for storing one or more programs, which, when executed by one or more processors, cause the one or more processors to implement the above-described control method.

[0045] By applying the technical solution of this invention, corresponding heat recovery branches are set up to recover the heat from the hydrogen production device and the fuel cell respectively, fully recovering and utilizing the heat generated by the hydrogen production device and the fuel cell during operation, avoiding energy waste. At the same time, it solves the problem of heat release during the operation of the electrolyzer in the hydrogen production device, improves the working efficiency and lifespan of the electrolyzer in the hydrogen production device, and widens the operating temperature range of the fuel cell, thereby improving the working efficiency of the fuel cell. Furthermore, since a heating device is set up, the heat exchange medium can be heated according to the hydrogen release temperature of different hydrogen storage materials, thereby adjusting the temperature of the hydrogen storage device and broadening the applicability of the entire waste heat recovery system. Attached Figure Description

[0046] Figure 1 This is a structural diagram of a waste heat recovery system according to an embodiment of the present invention; wherein, 1-hydrogen production device, 2-fuel cell, 3-hydrogen storage device, 4-buffer tank, 5-heating device, 6-heat recovery main pipeline, 7-first heat recovery branch, 8-second heat recovery branch, 9-return main pipeline, 10-first return pipeline, 11-second return pipeline, 12-first hydrogen delivery pipeline, 13-second hydrogen delivery pipeline, T1-first temperature sensor, T2-second temperature sensor, V1-first control valve, V2-second control valve, V3-third control valve, V4-fourth control valve, V5-fifth control valve;

[0047] Figure 2 A flowchart of a control method according to an embodiment of the present invention;

[0048] Figure 3 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0050] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0051] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0052] It should be understood that although the terms first, second, third, etc., may be used to describe control valves in the embodiments of the present invention, these control valves should not be limited to these terms. These terms are only used to distinguish control valves in different locations. For example, without departing from the scope of the embodiments of the present invention, a first control valve may also be referred to as a second control valve, and similarly, a second control valve may also be referred to as a first control valve.

[0053] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0054] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0055] The optional embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0056] Example 1

[0057] Both hydrogen production and the continuous operation of fuel cells generate heat. Especially during continuous operation of the fuel cell system, the high heat generated can remove moisture from the reaction process, causing dehydration of the proton exchange membrane, lowering the thermodynamic equilibrium potential, increasing hydrogen permeation and causing voltage loss. Furthermore, since the proton exchange membrane is a polymer electrolyte, excessively high temperatures can make the membrane brittle, reducing its strength and leading to perforation. This can cause hydrogen to mix with air in the flow channels, resulting in safety accidents. Currently, the heat generated during hydrogen production and fuel cell operation is generally dissipated into the air, resulting in energy waste.

[0058] To address the problem of energy waste caused by the dissipation of heat generated during hydrogen production and fuel cell operation into the air, this embodiment provides a waste heat recovery system. Figure 1 A structural diagram of a waste heat recovery system according to an embodiment of the present invention is shown below. Figure 1 As shown, the system includes a hydrogen production device 1, a fuel cell 2, a buffer tank 4, and a hydrogen storage device 3. It also includes: a first heat recovery branch 7, whose inlet end is connected to the outlet end of the hydrogen production device 1, and a third control valve V1 is installed on the first heat recovery branch 7; a second heat recovery branch 8, whose inlet end is connected to the outlet end of the fuel cell 2, and a second control valve V2 is installed on the second heat recovery branch 8; after the first heat recovery branch 7 and the second heat recovery branch 8 merge, they flow into a heat recovery main pipeline 6, which is connected to the inlet end of the buffer tank 4, and the outlet end of the buffer tank 4 is connected to the inlet end of the hydrogen storage device 3; a heating device 5 is installed in the buffer tank 4; and the outlet end of the hydrogen storage device 3 is connected to a return main pipeline 9, which is connected to the inlet end of the hydrogen production device 1 via a first return pipeline 10, and also connected to the inlet end of the fuel cell 2 via a second return pipeline 11.

[0059] The waste heat recovery system in this embodiment recovers heat from the hydrogen production unit and the fuel cell by setting up corresponding heat recovery branches. This fully utilizes the heat generated by the hydrogen production unit and the fuel cell, avoiding energy waste. It also solves the heat release problem during the operation of the electrolyzer in the hydrogen production unit, improving the efficiency and lifespan of the electrolyzer, and expanding the operating temperature range of the fuel cell, thus improving its efficiency. Furthermore, the inclusion of a heating device allows for heating of the heat exchange medium according to the hydrogen release temperature of different hydrogen storage materials, thereby adjusting the temperature of the hydrogen storage unit and broadening the applicability of the entire waste heat recovery system.

[0060] In order to increase the contact area and improve the heat exchange effect, the heating device 5 is set at the bottom of the buffer water tank 4, and the pipe at the outlet end of the buffer water tank 4 passes through the inside of the heating device 5.

[0061] In order to detect the temperature at the outlet of the buffer tank 4, the system further includes: a first temperature sensor T1, which is installed on the pipeline at the outlet of the buffer tank 4; in order to detect the temperature of the hydrogen storage device 3, the system further includes: a second temperature sensor T2, which is installed on the hydrogen storage device 3.

[0062] If the temperature of the heat exchange medium in the buffer tank 4 is high, and the temperature of the hydrogen storage device 3 is sufficient to meet the temperature required for hydrogen release after flowing into the hydrogen storage device 3, then the flow of the heat exchange medium in the buffer tank 4 into the hydrogen storage device 3 can be controlled. However, if the temperature of the heat exchange medium in the buffer tank 4 is low, and the temperature of the hydrogen storage device 3 is insufficient to meet the temperature required for hydrogen release after flowing into the hydrogen storage device 3, then the flow of the heat exchange medium in the buffer tank 4 into the hydrogen storage device 3 needs to be stopped and heated first. In order to control whether the heat exchange medium in the buffer tank flows into the hydrogen storage device 3, the above system also includes: a third control valve V3, which is installed on the pipeline between the buffer tank 4 and the hydrogen storage device 3.

[0063] When the heat exchange medium and the hydrogen storage device 3 have not fully exchanged heat, it is necessary to control the first return line 10 and the second return line 11 to close to allow for sufficient heat exchange. After the heat exchange is completed, it is necessary to control the first return line 10 and the second return line 11 to open. In order to control the opening and closing of the first return line 10 and the second return line 11, the above system also includes: a fourth control valve V4, which is installed on the first return line 10; and a fifth control valve V5, which is installed on the second return line 11.

[0064] To facilitate hydrogen transport, the system further includes: a first hydrogen transport pipeline 12, located between the hydrogen production unit 1 and the hydrogen storage unit 3; and a second hydrogen transport pipeline 13, located between the hydrogen storage unit 3 and the fuel cell 2. Hydrogen produced by the hydrogen production unit 1 is transported to the hydrogen storage unit 3 via the first hydrogen transport pipeline 12. When the fuel cell 2 requires hydrogen, hydrogen is transported to the fuel cell 2 via the second hydrogen transport pipeline 13.

[0065] In summary, the waste heat utilization system of this embodiment includes an electrolyzer hydrogen production unit 1, a fuel cell 2, a hydrogen storage unit 3, a buffer water tank 4, a heating unit 5, a heat recovery main pipeline 6, a first heat recovery branch 7, a second heat recovery branch 8, a first temperature sensor T1, a second temperature sensor T2, a third control valve V1, a fourth control valve V2, a fifth control valve V3, a fourth control valve V4, a fifth control valve V5, a return main pipeline 9, a first return pipeline 10, and a second return pipeline 11.

[0066] When the hydrogen production unit 1 is working, it generates waste heat. At this time, the first control valve V1 opens and the second control valve V2 closes. The heat exchange medium flows into the heat recovery main pipeline 9 through the first heat recovery branch 7, and then into the buffer water tank 4. The temperature at the outlet of the buffer water tank is collected by the temperature sensor 7, and the temperature of the hydrogen storage device 3 is collected by the second temperature sensor T2. If the water temperature does not meet the requirements of the solid hydrogen storage material, the heating device 5 is started to heat the water to the predetermined temperature. The third control valve V3 is then opened to allow the heat exchange medium to flow into the hydrogen storage device 3. After the heat exchange is completed, the fourth control valve V4 is opened and the fifth control valve V5 is closed. The water flows back to the hydrogen production unit from the first return pipeline 10.

[0067] When fuel cell 2 is working, it generates heat. At this time, the second control valve V2 opens and the first control valve V1 closes. Hot water flows into the heat recovery main pipeline 9 through the second heat recovery branch 8, and then into the buffer water tank 4. The inlet water temperature of the buffer water tank is collected by the first temperature sensor T1, and the temperature of the hydrogen storage device 3 is collected by the second temperature sensor T2. If the water temperature does not meet the requirements of the solid hydrogen storage material, the heating device 5 is started to heat the water to the predetermined temperature. The third control valve V3 is then opened to allow hot water to flow into the hydrogen storage device 3. After the heat exchange is completed, the fifth control valve V5 is opened and the fourth control valve V4 is closed. The heat exchange medium flows back to fuel cell 2 through the second return pipeline 11.

[0068] Example 2

[0069] This embodiment provides a new energy vehicle, including the aforementioned waste heat recovery system, which fully utilizes the heat generated by the hydrogen production unit and fuel cell, avoiding energy waste. It also solves the heat release problem during the operation of the electrolyzer in the hydrogen production unit, improving the efficiency and lifespan of the electrolyzer, and expanding the operating temperature range of the fuel cell, thus increasing its efficiency. Furthermore, due to the inclusion of a heating device, the heat exchange medium can be heated according to the hydrogen release temperature of different hydrogen storage materials, thereby adjusting the temperature of the hydrogen storage unit and broadening the applicability of the entire waste heat recovery system, ultimately improving the performance of the new energy vehicle.

[0070] Example 3

[0071] This embodiment provides a control method applied to the waste heat recovery system described in the above embodiment. Figure 2 A flowchart of a control method according to an embodiment of the present invention is shown below. Figure 2 As shown, the control method includes:

[0072] S101, based on the operating status of the hydrogen production unit and the fuel cell, control the opening of the first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch.

[0073] The hydrogen production unit and the fuel cell will operate at one of their own. When either the hydrogen production unit or the fuel cell is operating, heat will be generated. The corresponding heat recovery branch will be activated to recover the heat.

[0074] S102, determine the target hydrogen release temperature based on the hydrogen storage material of the hydrogen storage device, and determine the target value of the outlet temperature of the buffer water tank based on the target hydrogen release temperature and the temperature of the hydrogen storage device.

[0075] Specifically, if the target hydrogen release temperature is t1, the temperature of the hydrogen storage device is t2, and the target value of the outlet temperature of the buffer tank is t3, if t2 < t1, then the temperature of the hydrogen storage device needs to be increased. Therefore, in order for t2 to rise to t1, t3 needs to be at least greater than t1.

[0076] S103, based on the outlet temperature of the buffer tank and the aforementioned target value, control the opening and closing of the third control valve on the pipeline between the buffer tank and the hydrogen storage device and the heating device in the buffer tank.

[0077] If the temperature of the heat exchange medium in the buffer tank 4 is high, and the temperature of the hydrogen storage device 3 is sufficient to meet the temperature required for hydrogen release after flowing into the hydrogen storage device 3, then the flow of the heat exchange medium in the buffer tank 4 into the hydrogen storage device 3 can be controlled. However, if the temperature of the heat exchange medium in the buffer tank 4 is low, and the temperature of the hydrogen storage device 3 is insufficient to meet the temperature required for hydrogen release after flowing into the hydrogen storage device 3, then the flow of the heat exchange medium in the buffer tank 4 into the hydrogen storage device 3 needs to be stopped, and heating should be performed first. Therefore, the opening and closing of the third control valve V3 on the pipeline between the buffer tank and the hydrogen storage device and the heating device in the buffer tank need to be controlled according to the outlet temperature of the buffer tank and the above target value.

[0078] The control method of this embodiment controls the opening of the first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch according to the working status of the hydrogen production device and the fuel cell. This enables the separate recovery of heat from the hydrogen production device and the fuel cell, solving the heat release problem during the operation of the electrolyzer in the hydrogen production device, improving the working efficiency and lifespan of the electrolyzer, and expanding the working temperature range of the fuel cell, thereby improving the working efficiency of the fuel cell. The target hydrogen release temperature is determined according to the hydrogen storage material in the hydrogen storage device, and the target value of the outlet temperature of the buffer water tank is determined according to the target hydrogen release temperature and the temperature of the hydrogen storage device. This solves the problem of different temperatures when releasing hydrogen from different hydrogen storage materials. The opening and closing of the third control valve on the pipeline between the buffer water tank and the hydrogen storage device and the heating device in the buffer water tank are controlled according to the outlet temperature of the buffer water tank and the above-mentioned target value, ensuring that the heat exchange medium in the buffer water tank reaches the required temperature as soon as possible.

[0079] Since only one of the hydrogen production unit and the fuel cell can operate at a time, in order to ensure that the corresponding heat recovery branch is opened when either the hydrogen production unit or the fuel cell is operating, the first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch is controlled to open according to the operating status of the hydrogen production unit and the fuel cell. This includes: if the hydrogen production unit is operating and the fuel cell is not operating, the first control valve is opened; if the fuel cell is operating and the hydrogen production unit is not operating, the second control valve is opened.

[0080] Specifically, controlling the opening and closing of the third control valve on the pipeline between the buffer water tank and the hydrogen storage device and the heating device in the buffer water tank according to the outlet temperature of the buffer water tank and the target value includes: determining whether the outlet temperature of the buffer water tank has reached the target value; if so, controlling the third control valve on the pipeline between the buffer water tank and the hydrogen storage device to open; if not, controlling the third control valve to close and controlling the heating device on the buffer water tank to turn on, until the outlet temperature of the buffer water tank reaches the target value, and then controlling the third control valve to open.

[0081] To ensure sufficient heat exchange of the heat exchange medium in the hydrogen storage device, after the third control valve is opened, the above method further includes: controlling the opening and closing of the fourth control valve on the first reflux line or the fifth control valve on the second reflux line according to the heat exchange duration. Specifically, controlling the opening and closing of the fourth control valve on the first reflux line or the fifth control valve on the second reflux line according to the heat exchange duration includes: determining whether the heat exchange duration has reached a preset duration; if yes, then controlling the fourth control valve on the first reflux line or the fifth control valve on the second reflux line to open; if no, then controlling the fourth control valve on the first reflux line or the fifth control valve on the second reflux line to close.

[0082] Example 4

[0083] This embodiment provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method of the above embodiment.

[0084] Example 5

[0085] This embodiment provides an electronic device, including:

[0086] One or more processors;

[0087] A storage device for storing one or more programs, which, when executed by one or more processors, cause the one or more processors to implement the control method of the above embodiments.

[0088] Figure 3 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention, such as... Figure 3As shown, the electronic device includes:

[0089] One or more processors 310 and memory 320, Figure 3 Take the 310 processor as an example.

[0090] The aforementioned electronic device may further include: an input device 330 and an output device 340.

[0091] The processor 310, memory 320, input device 330, and output device 340 can be connected via a bus or other means. Figure 3 Taking the example of a connection between China and Israel via a bus.

[0092] The memory 320, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the program instructions / modules corresponding to the control method in this embodiment of the invention. The processor 310 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions, and modules stored in the memory 320, thereby implementing the above-described method embodiments.

[0093] The memory 320 may include a program storage area and a data storage area, wherein the program storage area may store application programs required for operating the device and at least one function; and the data storage area may store data created according to the use of the control method, etc. Furthermore, the memory 320 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0094] Input device 330 can receive input digital or character information, and generate key signal inputs related to user settings and function control of the electronic device. Output device 340 may include display devices such as a display screen.

[0095] The one or more modules are stored in the memory 320, and when executed by the one or more processors 310, they execute the control method in any of the above method embodiments.

[0096] The aforementioned electronic device can execute the method provided in the embodiments of the present invention, and has the corresponding functional modules and beneficial effects for executing the method. Technical details not described in detail in this embodiment can be found in the method provided in the embodiments of the present invention.

[0097] The electronic devices of this invention exist in various forms, including but not limited to:

[0098] (1) Mobile communication devices: These devices are characterized by their mobile communication capabilities and primarily aim to provide voice and data communication. These terminals include: smartphones (e.g., iPhones), multimedia phones, feature phones, and low-end phones, etc.

[0099] (2) Ultra-mobile personal computer devices: These devices fall under the category of personal computers, possessing computing and processing capabilities, and generally also have mobile internet access features. These terminals include PDAs, MIDs, and UMPCs, such as the iPad.

[0100] (3) Portable entertainment devices: These devices can display and play multimedia content. This category includes: audio and video players (such as iPods), handheld game consoles, e-books, as well as smart toys and portable car navigation devices.

[0101] (4) Server: A device that provides computing services. The components of a server include a processor, hard disk, memory, device bus, etc. Servers are similar to general computer architectures, but because they need to provide highly reliable services, they have higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0102] (5) Other electronic devices with data interaction functions, such as televisions and in-vehicle screens.

[0103] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0104] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A waste heat recovery system, characterized in that, The system includes a hydrogen production unit, a fuel cell, a buffer tank, and a hydrogen storage unit, and also includes: The first heat recovery branch has its inlet end connected to the outlet end of the hydrogen production unit; The second heat recovery branch has its inlet end connected to the outlet end of the fuel cell; After the first heat recovery branch and the second heat recovery branch merge, they are connected to the inlet end of the buffer water tank. The outlet end of the buffer water tank is connected to the inlet end of the hydrogen storage device. A heating device is installed in the buffer water tank. The hydrogen storage device has its outlet end connected to the inlet end of the hydrogen production device via a first reflux pipeline, and its outlet end is also connected to the inlet end of the fuel cell via a second reflux pipeline.

2. The system according to claim 1, characterized in that, The heating device is located at the bottom of the buffer water tank, and the pipe at the outlet end of the buffer water tank passes through the interior of the heating device.

3. The system according to claim 1, characterized in that, The system also includes: The first control valve is installed on the first heat recovery branch; The second control valve is located on the second heat recovery branch.

4. The system according to claim 1, characterized in that, The system also includes: The third control valve is installed on the pipeline between the buffer tank and the hydrogen storage device.

5. The system according to claim 1, characterized in that, The system also includes: The fourth control valve is installed on the first return pipeline; The fifth control valve is located on the second return line.

6. The system according to claim 1, characterized in that, The system also includes: The first temperature sensor is installed on the pipe at the outlet end of the buffer water tank; A second temperature sensor is installed on the hydrogen storage device.

7. A new energy vehicle, characterized in that, The waste heat recovery system includes any one of claims 1 to 6.

8. A control method applied to the waste heat recovery system according to any one of claims 1 to 6, characterized in that, The control method includes: The first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch is opened according to the operating status of the hydrogen production unit and the fuel cell. The target hydrogen release temperature is determined based on the hydrogen storage material of the hydrogen storage device, and the target value of the outlet temperature of the buffer water tank is determined based on the target hydrogen release temperature and the temperature of the hydrogen storage device. The opening and closing of the third control valve on the pipeline between the buffer tank and the hydrogen storage device and the heating device in the buffer tank are controlled according to the outlet temperature of the buffer tank and the target value.

9. The control method according to claim 8, characterized in that, Controlling the opening and closing of the third control valve on the pipeline between the buffer water tank and the hydrogen storage device and the heating device in the buffer water tank based on the outlet temperature of the buffer water tank and the target value includes: Determine whether the outlet temperature of the buffer tank has reached the target value; If so, the third control valve on the pipeline between the buffer tank and the hydrogen storage device will be opened; If not, the third control valve is closed, and the heating device on the buffer tank is turned on until the outlet temperature of the buffer tank reaches the target value, at which point the third control valve is opened.

10. The control method according to claim 9, characterized in that, After the third control valve is opened, the method further includes: The opening and closing of the fourth control valve on the first return pipeline or the fifth control valve on the second return pipeline is controlled according to the heat exchange duration.

11. The control method according to claim 10, characterized in that, Controlling the opening and closing of the fourth control valve on the first return line or the fifth control valve on the second return line according to the heat exchange duration includes: Determine whether the heat exchange duration has reached the preset time; If so, then the fourth control valve on the first return line or the fifth control valve on the second return line will be opened; If not, then the fourth control valve on the first return line or the fifth control valve on the second return line will be closed.

12. The control method according to claim 10, characterized in that, Controlling the opening of the first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch according to the operating status of the hydrogen production unit and the fuel cell includes: If the hydrogen production unit is working but the fuel cell is not working, then the first control valve is opened. If the fuel cell is working but the hydrogen production unit is not, the second control valve is opened.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the control method as described in any one of claims 8 to 12.

14. An electronic device, characterized in that, include: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the one or more processors to implement the control method as described in any one of claims 8 to 12.

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