Waste heat recovery system, new energy automobile, control method, storage medium and electronic equipment

Abstract

The invention discloses a waste heat recovery system, a new energy automobile, a control method, a storage medium and electronic equipment. According to the method, 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, a second heat recovery branch and a third heat recovery branch, the inlet end of the second heat recovery branch is communicated with the outlet end of the fuel cell; the first heat recovery branch and the second heat recovery branch are converged and then are communicated with the inlet end of a buffer water tank, the outlet end of the buffer water tank is communicated with the inlet end of the hydrogen storage device, and a heating device is arranged in the buffer water tank; the outlet end of the hydrogen storage device is communicated with the inlet end of the hydrogen production device through a first return pipeline, and the outlet end of the hydrogen storage device is also communicated with the inlet end of the fuel cell through a second return pipeline. According to the invention, heat generated by working of the hydrogen production device and the fuel cell can be fully recycled, and energy waste is avoided.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen storage technology, and in particular to a waste heat recovery system, a new energy vehicle, a control method, a storage medium and an electronic device. Background Art

[0002] Solid-state hydrogen storage technology is to achieve hydrogen storage by combining hydrogen with hydrogen storage materials through physical or chemical means. Solid-state hydrogen storage technology routes can be mainly divided into metal hydrides, coordinated hydrides, carbon materials, metal organic framework materials and hydrate hydrogen storage.

[0003] During the dehydrogenation process, metal hydrides need to absorb a large amount of heat to decompose and release hydrogen. Heat is generated during the production of hydrogen and the continuous operation of hydrogen in fuel cells. Especially during the continuous operation of the fuel cell system, when more heat is generated, the higher temperature will take away the moisture in the reaction process, dehydrating the proton exchange membrane, reducing the thermodynamic equilibrium potential, increasing hydrogen permeation and causing voltage loss. In addition, since the proton exchange membrane itself is a polymer electrolyte, when the temperature is too high, the membrane will become fragile, reducing the membrane strength, causing perforation of the proton membrane, causing the hydrogen in the flow channel to mix with the air, causing safety accidents. At present, the general way to deal with the heat generated during the hydrogen production process and the operation of the fuel cell is to dissipate it into the air, resulting in energy waste.

[0004] With regard to the problem that the heat generated during the hydrogen production process and the operation of the fuel cell is dissipated into the air in the prior art, resulting in energy waste, no effective solution has been proposed so far. Summary of the invention

[0005] The embodiments of the present invention provide 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 that the heat generated during the hydrogen production process and the operation of the fuel cell is dissipated into the air, causing energy waste.

[0006] In order to solve the above technical problems, the present invention provides a waste heat recovery system, which includes a hydrogen production device, a fuel cell, a buffer water tank and a hydrogen storage device, and also includes:

[0007] A first heat recovery branch, the inlet end of which is connected to the outlet end of the hydrogen production device;

[0008] A second heat recovery branch, the inlet end of which is connected to the outlet end of the fuel cell;

[0009] After the first heat recovery branch and the second heat recovery branch are merged, they are connected to the inlet end of the buffer water tank, and the outlet end of the buffer water tank is connected to the inlet end of the hydrogen storage device, and a heating device is provided in the buffer water tank;

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

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

[0012] Furthermore, the system further comprises:

[0013] A first control valve is arranged on the first heat recovery branch;

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

[0015] Furthermore, the system further comprises:

[0016] A third control valve is arranged on the pipeline between the buffer water tank and the hydrogen storage device.

[0017] Furthermore, the system further comprises:

[0018] A fourth control valve, arranged on the first return pipeline;

[0019] The fifth control valve is arranged on the second return pipeline.

[0020] Furthermore, the system further comprises:

[0021] A first temperature sensor is arranged on a pipeline at an outlet end of the buffer water tank;

[0022] The second temperature sensor is arranged on the hydrogen storage device.

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

[0024] The present invention also provides a control method, which is applied to the above waste heat recovery system. The control method includes:

[0025] Control the first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch to open according to the working status of the hydrogen production device and the fuel cell;

[0026] Determining a target hydrogen desorption temperature according to the hydrogen storage material of the hydrogen storage device, and determining a target value of the outlet temperature of the buffer water tank according to the target hydrogen desorption 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 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 target value.

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

[0029] Determining whether the outlet temperature of the buffer water tank reaches the target value;

[0030] If yes, the third control valve on the pipeline between the buffer water tank and the hydrogen storage device is controlled to open;

[0031] If not, the third control valve is controlled to be closed, and the heating device on the buffer water tank is controlled to be turned on, until the outlet temperature of the buffer water tank reaches the target value, and then the third control valve is controlled to be opened.

[0032] Further, after controlling the third control valve to open, 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 time.

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

[0035] Determining whether the heat exchange duration reaches a preset duration;

[0036] If yes, the fourth control valve on the first return line or the fifth control valve on the second return line is controlled to open;

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

[0038] Further, according to the working state of the hydrogen production device and the fuel cell, 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, including:

[0039] If the hydrogen production device is working and the fuel cell is not working, the first control valve is controlled to open;

[0040] If the fuel cell is operating and the hydrogen production device is not operating, the second control valve is controlled to open.

[0041] The present invention also provides a computer-readable storage medium on which a computer program is stored, and the program implements the above control method when executed by a processor.

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

[0043] one or more processors;

[0044] The storage device is used to store one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned control method.

[0045] By applying the technical solution of the present invention, corresponding heat recovery branches are set to respectively recover the heat of the hydrogen production device and the fuel cell, and the heat generated by the operation of the hydrogen production device and the fuel cell is fully recovered and utilized, thereby avoiding energy waste and solving the heat release problem during the operation of the electrolyzer of the hydrogen production device, thereby improving the working efficiency and life of the electrolyzer of the hydrogen production device, and widening the working temperature of the fuel cell, thereby improving the working efficiency of the fuel cell. In addition, since a heating device is set, 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, thereby widening the application scope of the entire waste heat recovery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It 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 water tank, 5-heating device, 6-heat recovery main pipeline, 7-first heat recovery branch, 8-second heat recovery branch, 9-reflux main pipeline, 10-first reflux pipeline, 11-second reflux pipeline, 12-first hydrogen transmission pipeline, 13-second hydrogen transmission 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 is a flow chart of a control method according to an embodiment of the present invention;

[0048] Figure 3 FIG. 4 is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0051] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in 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 positions. For example, without departing from the scope of the embodiments of the present invention, the first control valve may also be referred to as the second control valve, and similarly, the second control valve may also be referred to as the first control valve.

[0053] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0054] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0055] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0056] Example 1

[0057] Heat is generated during the production of hydrogen and the continuous operation of hydrogen in fuel cells. In particular, when a large amount of heat is generated during the continuous operation of the fuel cell system, the higher temperature will take away the moisture in the reaction process, dehydrating the proton exchange membrane, reducing the thermodynamic equilibrium potential, and increasing hydrogen permeation to cause voltage loss. In addition, since the proton exchange membrane itself is a polymer electrolyte, when the temperature is too high, the membrane will become fragile, reducing the membrane strength and causing perforation of the proton membrane, causing the hydrogen in the flow channel to mix with the air, causing safety accidents. At present, the general way to deal with the heat generated in the hydrogen production process and the operation of the fuel cell is to dissipate it into the air, resulting in energy waste.

[0058] In view of the problem that the heat generated in the hydrogen production process and the operation of the fuel cell is dissipated into the air in the prior art, resulting in energy waste, this embodiment provides a waste heat recovery system. Figure 1 is a structural diagram of a waste heat recovery system according to an embodiment of the present invention, such as Figure 1 As shown, the system includes a hydrogen production device 1, a fuel cell 2, a buffer water tank 4 and a hydrogen storage device 3, and 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 provided 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 provided 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 the heat recovery main pipeline 6, the heat recovery main pipeline 6 is connected to the inlet end of the buffer water tank 4, the outlet end of the buffer water tank 4 is connected to the inlet end of the hydrogen storage device 3, and a heating device 5 is provided in the buffer water tank 4; the hydrogen storage device 3, whose outlet end is connected to the reflux main pipeline 9, the reflux main pipeline 9 is connected to the inlet end of the hydrogen production device 1 through the first reflux pipeline 10, and the reflux main pipeline 9 is also connected to the inlet end of the fuel cell 2 through the second reflux pipeline 11.

[0059] The waste heat recovery system of this embodiment, by setting corresponding heat recovery branches, respectively recovers the heat of the hydrogen production device and the fuel cell, fully utilizes the heat generated by the operation of the hydrogen production device and the fuel cell, avoids energy waste, and solves the heat release problem during the operation of the electrolyzer of the hydrogen production device, improves the working efficiency and life of the electrolyzer of the hydrogen production device, and widens the working temperature of the fuel cell, improves the working efficiency of the fuel cell, and because a heating device is provided, 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 widening the application scope 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 arranged at the bottom of the buffer water tank 4 , and the pipeline at the outlet end of the buffer water tank 4 passes through the interior of the heating device 5 .

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

[0062] If the temperature of the heat exchange medium in the buffer water tank 4 is relatively high, and after flowing into the hydrogen storage device 3, the temperature of the hydrogen storage device 3 can meet the temperature required for hydrogen release, then the heat exchange medium in the buffer water tank 4 can be controlled to flow into the hydrogen storage device 3. However, if the temperature of the heat exchange medium in the buffer water tank 4 is relatively low, and after flowing into the hydrogen storage device 3, the temperature of the hydrogen storage device 3 cannot meet the temperature required for hydrogen release, then it is necessary to control the heat exchange medium in the buffer water tank 4 to stop flowing into the hydrogen storage device 3 and heat it first. In order to control whether the heat exchange medium in the buffer water tank flows into the hydrogen storage device 3, the above system also includes: a third control valve V3, which is arranged on the pipeline between the buffer water tank 4 and the hydrogen storage device 3.

[0063] When the heat exchange medium and the hydrogen storage device 3 have not completely exchanged heat, it is necessary to control the first return pipeline 10 and the second return pipeline 11 to be closed to perform sufficient heat exchange. After the heat exchange is completed, it is necessary to control the first return pipeline 10 and the second return pipeline 11 to be opened. In order to control the opening and closing of the first return pipeline 10 and the second return pipeline 11, the above system also includes: a fourth control valve V4, which is arranged on the first return pipeline 10; and a fifth control valve V5, which is arranged on the second return pipeline 11.

[0064] In order to achieve the transmission of hydrogen, the above system also includes: a first hydrogen transmission pipeline 12, which is arranged between the hydrogen production device 1 and the hydrogen storage device 3; and a second hydrogen transmission pipeline 13, which is arranged between the hydrogen storage device 3 and the fuel cell 2. The hydrogen produced by the hydrogen production device 1 is transmitted to the hydrogen storage device 3 through the first hydrogen transmission pipeline 12, and when the fuel cell 2 needs hydrogen, the hydrogen is transmitted to the fuel cell 2 through the second hydrogen transmission pipeline 13.

[0065] To summarize, the waste heat utilization system of the present embodiment includes an electrolyzer hydrogen production device 1 of a hydrogen production device, a fuel cell 2, a hydrogen storage device 3, a buffer water tank 4, a heating device 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 reflux main pipeline 9, a first reflux pipeline 10, and a second reflux pipeline 11.

[0066] When the hydrogen production device 1 is working, waste heat is generated. At this time, the first control valve V1 is opened, the second control valve V2 is closed, and the heat exchange medium flows into the heat recovery main pipeline 9 through the first heat recovery branch 7, and then flows 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 to a predetermined temperature, and the third control valve V3 is opened to allow the heat exchange medium to flow into the hydrogen storage device 3. After the heat is exchanged, the fourth control valve V4 is opened, and the fifth control valve V5 is closed, and the water flows back to the hydrogen production device from the first return pipeline 10.

[0067] When the fuel cell 2 is working, heat is generated. At this time, the second control valve V2 is opened, the first control valve V1 is closed, and hot water flows into the heat recovery main pipeline 9 through the second heat recovery branch 8, and then flows into the buffer water tank 4. The water temperature at the inlet 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 it to a predetermined temperature, and the third control valve V3 is opened to allow hot water to flow into the hydrogen storage device 3. After the heat is exchanged, the fifth control valve V5 is opened, and the fourth control valve V4 is closed, and the heat exchange medium flows back to the fuel cell 2 from the second return pipeline 11.

[0068] Example 2

[0069] The present embodiment provides a new energy vehicle, including the above-mentioned waste heat recovery system, which is used to fully utilize the heat generated by the operation of the hydrogen production device and the fuel cell, avoid energy waste, and solve the heat release problem during the operation of the electrolyzer of the hydrogen production device, improve the working efficiency and life of the electrolyzer of the hydrogen production device, and widen the working temperature of the fuel cell, improve the working efficiency of the fuel cell, and because a heating device is provided, 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, thereby widening the application scope of the entire waste heat recovery system, and thus improving the performance of the new energy vehicle.

[0070] Example 3

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

[0072] S101, according to the working status of the hydrogen production device and the fuel cell, 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.

[0073] The hydrogen production device and the fuel cell will work selectively. When one of the hydrogen production device or the fuel cell is working, heat will be generated, and the corresponding heat recovery branch will be opened to recover the heat.

[0074] S102, determining a target dehydrogenation temperature according to the hydrogen storage material of the hydrogen storage device, and determining a target value of the outlet temperature of the buffer water tank according to the target dehydrogenation 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 water tank is t3, if t2<t1, then the temperature of the hydrogen storage device needs to be increased. In order to increase t2 to t1, t3 must at least be greater than t1.

[0076] S103, 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 above target value.

[0077] If the temperature of the heat exchange medium in the buffer water tank 4 is relatively high, and after flowing into the hydrogen storage device 3, the temperature of the hydrogen storage device 3 can meet the temperature required for hydrogen release, then the heat exchange medium in the buffer water tank 4 can be controlled to flow into the hydrogen storage device 3. However, if the temperature of the heat exchange medium in the buffer water tank 4 is relatively low, and after flowing into the hydrogen storage device 3, the temperature of the hydrogen storage device 3 cannot meet the temperature required for hydrogen release, then it is necessary to control the heat exchange medium in the buffer water tank 4 to stop flowing into the hydrogen storage device 3 and heat it first. Therefore, it is necessary to control the opening and closing of the third control valve V3 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 above-mentioned 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, which can realize the recovery of heat from the hydrogen production device and the fuel cell respectively, solves the heat release problem during the operation of the electrolyzer of the hydrogen production device, improves the working efficiency and life of the electrolyzer of the hydrogen production device, and widens the working temperature of the fuel cell to improve the working efficiency of the fuel cell; determines the target hydrogen desorption temperature according to the hydrogen storage material of the hydrogen storage device, and determines the target value of the outlet temperature of the buffer water tank according to the target hydrogen desorption temperature and the temperature of the hydrogen storage device, which can solve the problem of different temperatures when different hydrogen storage materials are desorbed; controls 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 above-mentioned target value, which can ensure 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 device and the fuel cell can work, in order to ensure that when one of the hydrogen production device and the fuel cell is working, the corresponding heat recovery branch is opened, 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 working status of the hydrogen production device and the fuel cell, including: if the hydrogen production device is working and the fuel cell is not working, the first control valve is controlled to open; if the fuel cell is working and the hydrogen production device is not working, the second control valve is controlled to open.

[0080] Specifically, 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 target value, including: judging whether the outlet temperature of the buffer water tank reaches 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 open, until the outlet temperature of the buffer water tank reaches the target value, and then controlling the third control valve to open.

[0081] In order to ensure that the heat exchange medium is fully exchanged in the hydrogen storage device, after the third control valve is controlled to open, the above method also includes: controlling the opening and closing of the fourth control valve on the first return pipeline or the fifth control valve on the second return pipeline according to the heat exchange duration. Specifically, controlling the opening and closing of the fourth control valve on the first return pipeline or the fifth control valve on the second return pipeline according to the heat exchange duration includes: judging whether the heat exchange duration reaches a preset duration; if yes, controlling the fourth control valve on the first return pipeline or the fifth control valve on the second return pipeline to open; if not, controlling the fourth control valve on the first return pipeline or the fifth control valve on the second return pipeline to close.

[0082] Example 4

[0083] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the control method of the above embodiment is implemented.

[0084] Example 5

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

[0086] one or more processors;

[0087] The storage device is used to store one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the control method of the above embodiment.

[0088] Figure 3 FIG. 1 is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Figure 3As shown, the electronic device includes:

[0089] One or more processors 310 and memory 320, Figure 3 A processor 310 is taken as an example.

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

[0091] The processor 310, the memory 320, the input device 330 and the output device 340 may be connected via a bus or other means. Figure 3 The example of connecting through bus is taken in the following.

[0092] The memory 320 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the control method in the embodiment of the present 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, that is, implementing the above method embodiment.

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

[0094] The input device 330 can receive input digital or character information and generate key signal input related to user settings and function control of the electronic device. The output device 340 can include a display device 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, perform the control method in any of the above method embodiments.

[0096] The electronic device can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0097] The electronic device of the embodiment of the present invention exists in various forms, including but not limited to:

[0098] (1) Mobile communication devices: These devices are characterized by their mobile communication functions and their main purpose is to provide voice and data communications. These terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

[0099] (2) Ultra-mobile personal computer devices: These devices fall into the category of personal computers, have computing and processing capabilities, and generally also have mobile Internet access features. These terminals include: PDA, MID and UMPC devices, such as iPad.

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

[0101] (4) Server: A device that provides computing services. The server consists of a processor, hard disk, memory, device bus, etc. The server is similar to a general computer architecture, but because it needs to provide highly reliable services, it has 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, large-screen cars, etc.

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

[0104] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment 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, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions 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 device, a fuel cell, a buffer water tank and a hydrogen storage device, and also includes: A first heat recovery branch, the inlet end of which is connected to the outlet end of the hydrogen production device; A second heat recovery branch, the inlet end of which is connected to the outlet end of the fuel cell; After the first heat recovery branch and the second heat recovery branch are merged, they are connected to the inlet end of the buffer water tank, and the outlet end of the buffer water tank is connected to the inlet end of the hydrogen storage device, and a heating device is provided in the buffer water tank; The outlet end of the hydrogen storage device is connected to the inlet end of the hydrogen production device through a first return pipeline, and the outlet end of the hydrogen storage device is also connected to the inlet end of the fuel cell through a second return pipeline.

2. The system according to claim 1, characterized in that The heating device is arranged at the bottom of the buffer water tank, and the pipeline 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 further comprises: A first control valve is arranged on the first heat recovery branch; The fifth control valve is arranged on the second heat recovery branch.

4. The system according to claim 1, characterized in that The system further comprises: A third control valve is arranged on the pipeline between the buffer water tank and the hydrogen storage device.

5. The system according to claim 1, characterized in that The system further comprises: A fourth control valve, arranged on the first return pipeline; The fifth control valve is arranged on the second return pipeline.

6. The system according to claim 1, characterized in that The system further comprises: A first temperature sensor is arranged on a pipeline at an outlet end of the buffer water tank; The second temperature sensor is arranged on the hydrogen storage device.

7. A new energy vehicle, characterized in that: A waste heat recovery system comprising the waste heat recovery system according to 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 comprises: Control the first control valve on the first heat recovery branch or the second control valve on the second heat recovery branch to open according to the working status of the hydrogen production device and the fuel cell; Determining a target hydrogen desorption temperature according to the hydrogen storage material of the hydrogen storage device, and determining a target value of the outlet temperature of the buffer water tank according to the target hydrogen desorption temperature and the temperature of the hydrogen storage device; 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 target value.

9. The control method according to claim 8, characterized in that: Controlling the opening and closing of a third control valve on a pipeline between the buffer water tank and the hydrogen storage device and a heating device in the buffer water tank according to the outlet end temperature of the buffer water tank and the target value, comprising: Determining whether the outlet temperature of the buffer water tank reaches the target value; If yes, the third control valve on the pipeline between the buffer water tank and the hydrogen storage device is controlled to open; If not, the third control valve is controlled to be closed, and the heating device on the buffer water tank is controlled to be turned on, until the outlet temperature of the buffer water tank reaches the target value, and then the third control valve is controlled to be opened.

10. The control method according to claim 9, characterized in that: After controlling the third control valve to open, 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 time.

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 pipeline or the fifth control valve on the second return pipeline according to the heat exchange time includes: Determining whether the heat exchange duration reaches a preset duration; If yes, the fourth control valve on the first return line or the fifth control valve on the second return line is controlled to open; If not, the fourth control valve on the first return line or the fifth control valve on the second return line is controlled to be closed.

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

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

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 the one or more processors, enables the one or more processors to implement the control method as described in any one of claims 8 to 12.

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