A methanol reforming hydrogen production unit, a hydrogen fuel cell, and a fuel cell power unit.

Abstract

This application discloses a methanol reforming hydrogen production device, a hydrogen fuel cell, and a fuel cell power unit, relating to the field of fuel cells. It includes a temperature control module, a methanol-water supply control module, a reforming module, and a control module. The temperature control module is connected to the pure methanol supply module, the reforming module, and the control module. The methanol-water supply control module is also connected to the methanol-water supply module, the reforming module, and the control module. The control module controls the temperature control module based on the target hydrogen production rate and the current reaction temperature of the reforming module, utilizing the pure methanol supplied by the pure methanol supply module to adjust the reaction temperature of the reforming module and maintain it within a first preset temperature range. The methanol-water supply control module is also controlled based on the target hydrogen production rate and the current reaction temperature to adjust the methanol-water supplied by the methanol-water supply module. The reforming module generates hydrogen gas corresponding to the target hydrogen production rate based on this methanol-water. This application achieves the goal of producing hydrogen gas from methanol reforming, which is beneficial for practical engineering applications.

Description

Technical Field

[0001] This invention relates to the field of fuel cell technology, and more specifically, to a methanol reforming hydrogen production apparatus, a hydrogen fuel cell, and a fuel cell power unit. Background Technology

[0002] In recent years, in order to reduce dependence on fossil fuels and reduce environmental pollution, the application of oxide fuel cells, including hydrogen fuel cells, has become more and more widespread. For example, in fuel cell hybrid electric vehicles, hydrogen fuel cells are used as the main power source and power batteries or supercapacitors are used as auxiliary power sources to form the vehicle's power system.

[0003] The application of hydrogen fuel cells requires the preparation of hydrogen. Considering that methanol is a liquid at room temperature, has physical properties similar to gasoline, and has advantages such as easy refueling, storage, and transportation, it is an ideal hydrogen carrier among liquid fuels. How to use methanol reforming to produce hydrogen in order to realize the production, transportation, distribution, and hydrogenation of hydrogen in hydrogen fuel cells is an urgent problem to be solved. Summary of the Invention

[0004] The problem solved by this invention is to provide a methanol reforming hydrogen production device, a hydrogen fuel cell, and a fuel cell power unit. Relying on methanol, which is easy to refuel, store, and transport, the invention achieves the goal of producing hydrogen from methanol through reforming. It is suitable for various hydrogen production needs and is beneficial for practical engineering applications.

[0005] To address the above problems, the present invention provides a methanol reforming hydrogen production device, comprising a temperature regulation module, a methanol-water supply regulation module, a reforming module, and a control module;

[0006] The temperature regulation module is connected to the pure methanol supply module, the reforming module, and the control module, respectively; the methanol-water supply regulation module is connected to the methanol-water supply module, the reforming module, and the control module, respectively.

[0007] The control module controls the temperature regulation module based on the target hydrogen production and the current reaction temperature of the reforming module, so as to use the pure methanol supplied by the pure methanol supply module to regulate the reaction temperature of the reforming module, so as to keep the reaction temperature within a first preset temperature range. The control module also controls the methanol-water supply regulation module based on the target hydrogen production and the current reaction temperature to regulate the methanol-water supplied by the methanol-water supply module, so that the reforming module generates hydrogen gas corresponding to the target hydrogen production based on the methanol-water.

[0008] The beneficial effects of this invention are as follows: On the one hand, the control module controls the temperature regulation module according to the target hydrogen production and the current reaction temperature of the reforming module, so as to use the pure methanol provided by the pure methanol supply module to regulate the reaction temperature of the reforming module to maintain it within the first preset temperature range, thereby providing the temperature conditions for the reforming module to generate hydrogen of the target hydrogen production; on the other hand, the control module controls the methanol-water supply regulation module according to the target hydrogen production and the current reaction temperature, thereby regulating the input amount of methanol-water provided by the methanol-water supply module, so that the reforming module processes the input methanol-water to generate hydrogen corresponding to the target hydrogen production.

[0009] It is evident that this application, relying on methanol which is easy to refuel, store, and transport, achieves the goal of producing hydrogen from methanol reforming, and is suitable for various hydrogen production needs, thus facilitating practical engineering applications.

[0010] Furthermore, the temperature regulation module includes a pure methanol supply regulation module, a combustion module, a first air supply regulation module, and a heat circulation module;

[0011] The pure methanol supply regulation module is connected to the pure methanol supply module, the combustion module, and the control module. The combustion module is also connected to the first air supply regulation module and the heat circulation module. The heat circulation module is also connected to the reforming module. The first air supply regulation module is also connected to the control module.

[0012] The pure methanol supply regulation module is used to regulate the pure methanol input to the combustion module according to the first control signal issued by the control module;

[0013] The first air supply regulation module is used to regulate the air input to the combustion module according to the second control signal issued by the control module. The first control signal and the second control signal are determined by the control module according to the target hydrogen production and the current reaction temperature of the reforming module.

[0014] The combustion module is used to generate exhaust gas from the pure methanol and the air;

[0015] The thermal circulation module is used to generate a thermal circulation fluid based on the exhaust gas, so as to regulate the reaction temperature of the reforming module and keep it within a first preset temperature range by means of the thermal circulation fluid.

[0016] In this scheme, pure methanol enters the combustion module through the pure methanol supply regulation module, and outside air enters the combustion module through the first air supply regulation module. In the combustion module, pure methanol reacts with air to generate exhaust gas with heat, which is sent to the thermal circulation module to participate in heat conduction. Finally, the generated thermal circulation liquid is sent to the reforming module to keep the reaction temperature of the reforming module within the first preset temperature range, thus creating the temperature conditions for the reaction in the reforming module and ensuring that hydrogen can be effectively produced.

[0017] Furthermore, the heat circulation module includes a heat exchanger and an oil pump;

[0018] The exhaust gas inlet of the oil heater is connected to the combustion module, the oil outlet of the oil heater is connected to the temperature control inlet of the reforming module, and the temperature control outlet of the reforming module is connected to the oil return outlet of the oil heater through the oil pump.

[0019] In this scheme, the hot oil heater outputs hot oil to the reforming module, and the cold oil output by the reforming module flows back to the hot oil heater through the oil pump. The hot oil heater and the oil pump are used to achieve heat circulation in a simple and reliable way, which ensures the control of the reaction temperature of the reformer.

[0020] Furthermore, the temperature regulation module also includes an oxygen monitoring module located at the output port of the combustion module;

[0021] The oxygen monitoring module is connected to the control module and is used to monitor the oxygen content of the exhaust gas.

[0022] In this scheme, an additional oxygen monitoring module is set up. By monitoring the oxygen content of the exhaust gas, the proportion of pure methanol combustion is determined, realizing the monitoring of the reaction of the combustion module and forming feedback regulation. This allows the control module to further fine-tune the pure methanol supply regulation module and the first air supply regulation module based on the reaction situation, so as to adjust the ratio of pure methanol to air and achieve precise control.

[0023] Furthermore, the temperature regulation module also includes a temperature control submodule;

[0024] The control port of the temperature control submodule is connected to the control module, the input port of the temperature control submodule is connected to the output port of the combustion module, and the output port of the temperature control submodule is connected to the input port of the heat cycle module.

[0025] The control module is also used to control the temperature adjustment submodule to keep the temperature of the exhaust gas input to the thermal cycle module within a second preset temperature range.

[0026] In this scheme, in order to avoid the combustion module's temperature rising rate being too fast, a temperature control submodule can also be set to adjust the exhaust gas temperature to maintain it within the second preset temperature range, thereby achieving temperature control of the burner.

[0027] Furthermore, the temperature control submodule includes a temperature control cavity and a second air supply regulation module; the temperature control cavity is connected to the second air supply regulation module, the combustion module, and the heat circulation module, respectively.

[0028] The second air supply regulation module is used to control the air input to the temperature regulation chamber according to the third control command issued by the control module, so that the temperature regulation chamber adjusts according to the air to keep the temperature of the exhaust gas within a second preset temperature range.

[0029] In this solution, the temperature control of the burner is achieved simply and reliably by setting up a temperature control chamber and a second air supply regulation module.

[0030] Furthermore, the temperature regulation module also includes a temperature acquisition module;

[0031] The temperature acquisition module is connected to the control module and is used to acquire and feedback the temperature at the output port of the combustion module, and / or the temperature at the input port of the temperature regulation submodule, and / or the temperature at the output port of the temperature regulation submodule, and / or the temperature at the output port of the thermal circulation module, and / or the temperature at the reflux port of the thermal circulation module, and / or the temperature at the thermal circulation liquid input port of the reforming module, and / or the temperature at the hydrogen outlet port of the reforming module.

[0032] In this scheme, a temperature acquisition module is set up to collect and record multiple temperature values, and fine-tuning is performed based on each temperature value. This improves the control accuracy of the entire hydrogen production unit and facilitates subsequent analysis of the control effect of the entire hydrogen production unit and makes improvements accordingly.

[0033] Furthermore, the methanol-water supply regulation module is a methanol pump.

[0034] In this solution, a methanol pump is used as the methanol-water supply regulation module, which simply and reliably regulates the amount of methanol-water input to the temperature regulation module.

[0035] The present invention also provides a hydrogen fuel cell, including the methanol reforming hydrogen production apparatus as described above.

[0036] The present invention also provides a fuel cell power device, including a hydrogen fuel cell as described above;

[0037] The hydrogen fuel cell is connected to electrical equipment to provide electrical energy to the equipment.

[0038] This application utilizes methanol, which is easy to refuel, store, and transport, to achieve the goal of producing hydrogen from methanol reforming. It is applicable to the preparation of hydrogen in hydrogen fuel cells and the fuel cell power devices that use this hydrogen fuel cell, which is beneficial for practical engineering applications. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of a methanol reforming hydrogen production structure provided by the present invention;

[0040] Figure 2 This is a schematic diagram of another structure for methanol reforming to produce hydrogen provided by the present invention;

[0041] Figure 3 An analytical diagram of the hydrogen production components in a methanol reforming hydrogen production device provided by the present invention;

[0042] Explanation of reference numerals in the attached figures:

[0043] 1-Temperature regulation module, 2-Methanol-water supply regulation module, 3-Reforming module, 4-Control module, A-First fan, B-Second fan, C-First methanol pump, D-Second methanol pump, E-Oxygen sensor, F-Oil pump, T1-Temperature acquisition point at the output port of the thermal circulation module, i.e., the oil inlet of the hot oil heater, T2-Temperature acquisition point at the return port of the thermal circulation module, i.e., the oil return port of the hot oil heater, T3-Temperature acquisition point at the input port of the temperature control chamber, T4-Temperature acquisition point at the hot circulating liquid input port of the reforming module, i.e., the hot oil input port of the reformer, T5-Temperature acquisition point at the output port of the burner, T6-Temperature acquisition point at the hydrogen outlet of the reforming module, T7-Temperature acquisition point at the output port of the temperature control chamber. Detailed Implementation

[0044] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a methanol reforming method for hydrogen production provided by the present invention.

[0046] This invention provides an embodiment of a methanol reforming hydrogen production device, comprising a temperature regulation module 1, a methanol-water supply regulation module 2, a reforming module 3, and a control module 4;

[0047] Temperature regulation module 1 is connected to pure methanol supply module, reforming module 3 and control module 4 respectively; methanol-water supply regulation module 2 is connected to methanol-water supply module, reforming module 3 and control module 4 respectively.

[0048] The control module 4 controls the temperature regulation module 1 according to the target hydrogen production and the current reaction temperature of the reforming module 3, so as to use the pure methanol supplied by the pure methanol supply module to regulate the reaction temperature of the reforming module 3, so as to keep the reaction temperature within the first preset temperature range. The control module 4 also controls the methanol-water supply regulation module 2 according to the target hydrogen production and the current reaction temperature to regulate the methanol-water supplied by the methanol-water supply module, so that the reforming module 3 generates hydrogen gas corresponding to the target hydrogen production based on the methanol-water.

[0049] Specifically, the pure methanol supply module is used to provide pure methanol and is not included in the methanol reforming hydrogen production device provided in this application. It can be any device capable of providing pure methanol, and no special limitation is made here. The methanol-water supply module is used to provide methanol-water and is not included in the methanol reforming hydrogen production device provided in this application. It can be any device capable of providing methanol-water, and no special limitation is made here. The control module 4 includes, but is not limited to, a Siemens PLC-based controller ST40, which can meet the I / O points required for data acquisition and transmission in the entire device, ensuring sufficient resources. In order to facilitate manual control and parameter display, the control module 4 can also be equipped with a corresponding communication module to realize local control and remote monitoring. The reforming module 3 includes, but is not limited to, a reformer. The reformer includes substances such as catalysts that combine with the input methanol-water to react and generate hydrogen.

[0050] To obtain the current reaction temperature of reforming module 3, multi-point temperature acquisition can be achieved using the ATO4 temperature acquisition extension module. This AT04 can provide four analog outputs to send temperature information to control module 4. For details, please refer to... Figure 2 , Figure 2 This is a schematic diagram of another formaldehyde reforming structure for hydrogen production provided by the present invention, which can be used to collect... Figure 2 The temperature information at T4 is used as the reaction temperature of the reforming module 3. It should be noted that there is no special limitation on the first preset temperature range here; it can be set according to the reaction temperature required by the reforming module 3.

[0051] Furthermore, when this methanol-to-hydrogen device is applied to a hydrogen fuel cell, a current sensor connected to the control module 4 via the AE08 analog input module can be installed to collect the output current, a voltage sensor connected to the control module 4 via the AE08 analog input module can be installed to collect the output voltage, and an oxygen sensor connected to the control module 4 via the AE08 can be installed to collect the oxygen content of the exhaust gas at the combustion module. This allows the control module 4 to collect data on the power generation of the oxygen fuel cell and the combustion status of the combustion module, facilitating the analysis of the system's power generation and combustion status.

[0052] It should also be noted that at the initial startup of the entire device, since the current reaction temperature of the reforming module 3 is far from the required level, a cold start is required to reach the required temperature. Therefore, the output of the reforming module 3 is first shut off, the methanol-water supply regulation module 2 stops outputting, the methanol-water supply module does not supply methanol-water, and the pure methanol supply module supplies pure methanol. Under the control of the control module 4, the current reaction temperature of the reforming module 3 is raised to the first preset temperature range through the temperature regulation module 1. Subsequently, the methanol-water supply module supplies methanol-water, the methanol-water supply regulation module 2 and the reforming module 3 resume output, hydrogen is generated in the reforming module 3, and normal operation begins.

[0053] In summary, this application provides a formaldehyde reforming hydrogen production device. The control module 4 controls the temperature regulation module 1 according to the target hydrogen production and the current reaction temperature of the reforming module 3, so as to use the pure methanol provided by the pure methanol supply module to regulate the reaction temperature of the reforming module 3 and keep it within the first preset temperature range, so as to provide the temperature conditions for the reforming module 3 to generate hydrogen with the target hydrogen production. On the other hand, the control module 2 controls the methanol-water supply regulation module 2 according to the target hydrogen production and the current reaction temperature, thereby adjusting the input amount of methanol-water provided by the methanol-water supply module, so that the reforming module 3 processes the input methanol-water to generate hydrogen corresponding to the target hydrogen production.

[0054] It is evident that this application, relying on methanol which is easy to refuel, store, and transport, achieves the goal of producing hydrogen from methanol reforming. It has advantages such as high volumetric energy density and high molar ratio, and is suitable for various hydrogen production needs, which is beneficial for practical engineering applications.

[0055] In a preferred embodiment, the temperature control module 1 includes a pure methanol supply control module, a combustion module, a first air supply control module, and a heat circulation module;

[0056] The pure methanol supply regulation module is connected to the pure methanol supply module, the combustion module, and the control module 4. The combustion module is also connected to the first air supply regulation module and the heat circulation module. The heat circulation module is also connected to the reforming module 3. The first air supply regulation module is also connected to the control module 4.

[0057] The pure methanol supply regulation module is used to regulate the pure methanol input from the pure methanol supply module to the combustion module according to the first control signal issued by the control module 4;

[0058] The first air supply regulation module is used to regulate the air input to the combustion module according to the second control signal issued by the control module 4. The first control signal and the second control signal are determined by the control module 4 based on the target hydrogen production and the current reaction temperature of the reforming module 3.

[0059] The combustion module is used to generate exhaust gas from pure methanol and air;

[0060] The thermal circulation module is used to generate thermal circulation fluid based on the exhaust gas, so as to regulate the reaction temperature of the reforming module 3 and keep it within the first preset temperature range by means of the thermal circulation fluid.

[0061] Specifically, the pure methanol supply regulation module includes, but is not limited to, a methanol pump. This methanol pump can change its rotation speed according to the first control signal issued by the control module 4, thereby regulating the amount of pure methanol input to the combustion module. The first air supply regulation module can be configured using an air preheater and a first fan A. External air is input into the air preheater through the first fan A. The air preheater preheats the air, and the resulting hot air is then delivered to the combustion module and discharged as exhaust gas. Please refer to [reference needed]. Figure 2 The first methanol pump C serves as a pure methanol supply regulation module; more specifically... Figure 2 Due to limitations in the focus of the image display, control module 4 is represented by a circle with an attached label. It should also be noted that in practical applications, control module 4 can be connected to the frequency converter via the AQ04 analog output expansion module. The frequency converter is connected to the first fan A. The AQ04 can achieve four-point analog output, thereby controlling the first fan A by controlling the frequency converter. This controls the oxygen supply in the pure methanol combustion process, determines the degree of combustion, and also controls the heat transfer rate, adjusting the heating rate of the entire device.

[0062] Furthermore, the combustion module includes, but is not limited to, a burner, in which pure methanol reacts with the supplied hot air to generate exhaust gas which is output to the thermal circulation module; the thermal circulation module can generate thermal circulation fluid based on the exhaust gas, thereby adjusting the reaction temperature of the reforming module 3 to maintain it within a first preset temperature range.

[0063] It should also be noted that, taking the pure methanol supply regulation module as the first methanol pump C, the methanol-water supply regulation module 2 as the second methanol pump D, and the first air supply regulation module including the first blower A as an example, the control module 4 pre-stores the correspondence between the target hydrogen production, temperature, the rotation speed of the first methanol pump C and the second methanol pump D, and the rotation speed of the first blower A. This correspondence can be stored in the control module 4 in tabular form. Therefore, based on the current expected target hydrogen production and the current reaction temperature of the reforming module 3, the target rotation speed of the first methanol pump C, the second methanol pump D, and the first blower A can be determined by searching in the above correspondence. Then, the corresponding first control signal is generated to the first methanol pump C, the second control signal is generated to the first blower A, and the fourth control signal is generated to the second methanol pump D.

[0064] As can be seen, this scheme generates tail gas from pure methanol and sends it to the thermal circulation module to participate in heat conduction. Finally, the generated thermal circulation liquid is sent to the reforming module 3 to keep the reaction temperature of the reforming module 3 within the first preset temperature range, thus creating the temperature conditions for the reaction in the reforming module 3 and ensuring that hydrogen can be effectively produced.

[0065] In a preferred embodiment, the heat circulation module includes a heat exchanger and an oil pump;

[0066] The exhaust gas inlet of the hot oil heater is connected to the combustion module, the oil outlet of the hot oil heater is connected to the temperature control inlet of the reforming module 3, and the temperature control outlet of the reforming module 3 is connected to the oil return outlet of the hot oil heater through the oil pump.

[0067] For details, please refer to Figure 2 The aforementioned hot circulating fluid is specifically hot oil. The hot oil is input to the reformer to achieve temperature regulation, and the cold oil is recovered to the hot oil heater via oil pump F. Oil pump F should be kept on during the normal operation of hydrogen production in reforming module 3 to complete the thermal cycle and achieve heat exchange balance. The implementation method is simple and reliable, ensuring the control of the reaction temperature of the reformer. It can be understood that the reformer can be started when the hot oil temperature output by the hot oil heater reaches above 150 degrees Celsius.

[0068] In a preferred embodiment, the temperature regulation module 1 further includes an oxygen monitoring module disposed at the output port of the combustion module;

[0069] The oxygen monitoring module is connected to the control module 4 and is used to monitor the oxygen content of the exhaust gas.

[0070] Specifically, such as Figure 2 As shown, the oxygen monitoring module includes, but is not limited to, an oxygen sensor E. In practical applications, the oxygen sensor E can be connected to the control module 4 through the AE08 analog input module to provide feedback on the oxygen content of the exhaust gas, determine the proportion of pure methanol combustion, and realize the monitoring of the reaction of the combustion module, forming feedback regulation. This allows the control module 4 to further fine-tune the pure methanol supply regulation module and the first air supply regulation module based on the reaction situation, so as to adjust the ratio of pure methanol to air and achieve precise control.

[0071] In a preferred embodiment, the temperature regulation module 1 further includes a temperature control submodule;

[0072] The control port of the temperature control submodule is connected to the control module 4, the input port of the temperature control submodule is connected to the output port of the combustion module, and the output port of the temperature control submodule is connected to the input port of the thermal cycle module.

[0073] Control module 4 is also used to maintain the temperature of the exhaust gas input to the thermal cycle module within a second preset temperature range by controlling the temperature regulation submodule.

[0074] Specifically, to prevent the combustion module from heating up too quickly, a temperature control submodule can be set up to regulate the temperature of the exhaust gas and keep it within a second preset temperature range, thereby achieving temperature control of the burner.

[0075] It should also be noted that when the thermal circulation module includes a heat exchanger and an oil pump, the exhaust gas inlet of the heat exchanger is connected to the output port of the temperature control submodule.

[0076] In a preferred embodiment, the temperature control submodule includes a temperature control cavity and a second air supply regulation module; the temperature control cavity is connected to the second air supply regulation module, the combustion module, and the heat circulation module, respectively.

[0077] The second air supply regulation module is used to control the air input to the temperature regulation chamber according to the third control command issued by the control module 4, so that the temperature regulation chamber can adjust according to the air to keep the temperature of the exhaust gas within the second preset temperature range.

[0078] Specifically, the second air supply regulation module includes a second fan B. In practical applications, the second fan B can be connected to the control module 4 via a frequency converter, an AQ04 analog output expansion module, and the connection method of the first fan A described above. The control module 4 can generate a third control signal based on the temperature at the output port of the temperature regulating cavity to control the fan B and prevent the temperature of the combustion module from rising too quickly. In addition, the specific value of the second preset temperature range is not particularly limited and can be set according to the actual heating rate requirements of the entire device.

[0079] In a preferred embodiment, the temperature regulation module 1 further includes a temperature acquisition module;

[0080] The temperature acquisition module is connected to the control module 4 and is used to acquire and feedback the temperature at the output port of the combustion module, and / or the temperature at the input port of the temperature regulation submodule, and / or the temperature at the output port of the temperature regulation submodule, and / or the temperature at the output port of the thermal circulation module, and / or the temperature at the reflux port of the thermal circulation module, and / or the temperature at the hot circulating liquid input port of the reforming module 3, and / or the temperature at the hydrogen outlet port of the reforming module 3.

[0081] Specifically, to better monitor the temperature information of the entire methanol reforming hydrogen production unit, a temperature acquisition module can be set up to collect temperature data at multiple points. Preferably, temperature data can be collected at all seven locations mentioned above, allowing for fine-tuning of control based on each temperature value. Please refer to [reference needed]. Figure 2 Taking the thermal circulation module, which includes a hot oil heater, the reforming module 3, which is a reformer, the temperature control submodule, which includes a temperature control chamber, and the combustion module, which is a burner, as an example, this will be explained. Figure 2The temperature acquisition points are marked as follows: T1 is the temperature acquisition point at the output port of the thermal circulation module, which is also the oil inlet of the hot oil heater; T2 is the temperature acquisition point at the return port of the thermal circulation module, which is also the oil return port of the hot oil heater; T3 is the temperature acquisition point at the input port of the temperature control chamber; T4 is the temperature acquisition point at the hot circulating liquid input port of the reforming module 3, which is also the hot oil input port of the reformer; T5 is the temperature acquisition point at the output port of the burner; T6 is the temperature acquisition point at the hydrogen outlet of the reforming module 3; and T7 is the temperature acquisition point at the output port of the temperature control chamber.

[0082] It is evident that the design of this scheme is beneficial for improving the control accuracy of the entire hydrogen production unit, and facilitates subsequent analysis of the control effect on the entire hydrogen production unit and the making of improvements.

[0083] For further details, please refer to Figure 3 , Figure 3 The present application provides an analysis diagram of the hydrogen production components of a methanol reforming hydrogen production device, wherein the ratio refers to the ratio of pure methanol to air in the burner, and the oil temperature refers to the temperature of the hot circulating fluid when it is hot oil.

[0084] In a preferred embodiment, the methanol-water supply regulating module 2 is a methanol pump.

[0085] Specifically, taking control module 4, ST40, as an example, it has powerful communication capabilities. The methanol pump can be connected to ST40 via the Modbus communication protocol. By receiving the corresponding control signals, the start and stop of the methanol pump, as well as the adjustment of its rotation direction and speed, can be achieved to input methanol-water corresponding to the target hydrogen production.

[0086] Of course, the communication method between the control module 4 and the methanol pump can also be RS485 protocol mode or TCP / IP protocol mode. There is no special limitation here, and it can be adjusted according to actual needs.

[0087] In addition, to achieve isolation between various electrical appliances, including the methanol pump, and control module 4, relays can be installed to ensure the safety and reliability of the control process.

[0088] The present invention also provides a hydrogen fuel cell, including the methanol reforming hydrogen production apparatus as described above.

[0089] For a description of the hydrogen fuel cell provided in this invention, please refer to the embodiments of the methanol reforming hydrogen production apparatus described above, which will not be repeated here.

[0090] The present invention also provides a fuel cell power device, including a hydrogen fuel cell as described above;

[0091] Hydrogen fuel cells are connected to electrical equipment to provide power to that equipment.

[0092] For a description of the fuel cell power unit provided in this invention, please refer to the above-described embodiment of the methanol reforming hydrogen production device; further details will not be provided here.

[0093] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. A methanol reforming hydrogen production apparatus, characterized in that, It includes a temperature regulation module (1), a methanol-water supply regulation module (2), a reforming module (3), and a control module (4); The temperature regulation module (1) is connected to the pure methanol supply module, the reforming module (3) and the control module (4) respectively; the methanol-water supply regulation module (2) is connected to the methanol-water supply module, the reforming module (3) and the control module (4) respectively. The control module (4) is used to control the temperature regulation module (1) according to the target hydrogen production and the current reaction temperature of the reforming module (3), so as to use the pure methanol provided by the pure methanol supply module to regulate the reaction temperature of the reforming module (3) so that the reaction temperature is kept within the first preset temperature range, and to control the methanol-water supply regulation module (2) according to the target hydrogen production and the current reaction temperature to regulate the methanol-water supplied by the methanol-water supply module so that the reforming module (3) generates hydrogen gas corresponding to the target hydrogen production based on the methanol-water; The temperature regulation module (1) includes a pure methanol supply regulation module, a combustion module, a first air supply regulation module, and a heat circulation module; The pure methanol supply regulation module is connected to the pure methanol supply module, the combustion module and the control module (4) respectively. The combustion module is also connected to the first air supply regulation module and the heat circulation module. The heat circulation module is also connected to the reforming module (3). The first air supply regulation module is also connected to the control module (4). The pure methanol supply regulation module is used to regulate the pure methanol input to the combustion module according to the first control signal issued by the control module (4); The first air supply regulation module is used to regulate the air input to the combustion module according to the second control signal issued by the control module (4). The first control signal and the second control signal are determined by the control module (4) according to the target hydrogen production and the current reaction temperature of the reforming module (3). The combustion module is used to generate exhaust gas from the pure methanol and the air; The thermal circulation module is used to generate thermal circulation fluid based on the exhaust gas, so as to regulate the reaction temperature of the reforming module (3) within a first preset temperature range by means of the thermal circulation fluid. The heat circulation module includes a heat exchanger and an oil pump; The exhaust gas inlet of the hot oil heater is connected to the combustion module, the oil outlet of the hot oil heater is connected to the temperature control inlet of the reforming module (3), and the temperature control outlet of the reforming module (3) is connected to the return oil outlet of the hot oil heater through the oil pump.

2. The methanol reforming hydrogen production apparatus as described in claim 1, characterized in that, The temperature regulation module (1) also includes an oxygen monitoring module located at the output port of the combustion module; The oxygen monitoring module is connected to the control module (4) and is used to monitor the oxygen content of the exhaust gas.

3. The methanol reforming hydrogen production apparatus as described in claim 2, characterized in that, The temperature regulation module (1) also includes a temperature regulation submodule; The control port of the temperature control submodule is connected to the control module (4), the input port of the temperature control submodule is connected to the output port of the combustion module, and the output port of the temperature control submodule is connected to the input port of the heat cycle module. The control module (4) is also used to control the temperature adjustment submodule to keep the temperature of the exhaust gas input to the thermal cycle module within a second preset temperature range.

4. The methanol reforming hydrogen production apparatus as described in claim 3, characterized in that, The temperature control submodule includes a temperature control cavity and a second air supply regulation module; the temperature control cavity is connected to the second air supply regulation module, the combustion module, and the heat circulation module, respectively; The second air supply regulation module is used to control the air input to the temperature regulation chamber according to the third control command issued by the control module (4), so that the temperature regulation chamber is adjusted according to the air so that the temperature of the exhaust gas is kept within the second preset temperature range.

5. The methanol reforming hydrogen production apparatus as described in claim 4, characterized in that, The temperature regulation module (1) also includes a temperature acquisition module; The temperature acquisition module is connected to the control module (4) and is used to acquire and feedback the temperature at the output port of the combustion module, and / or the temperature at the input port of the temperature regulation submodule, and / or the temperature at the output port of the temperature regulation submodule, and / or the temperature at the output port of the thermal circulation module, and / or the temperature at the reflux port of the thermal circulation module, and / or the temperature at the thermal circulation liquid input port of the reforming module (3), and / or the temperature at the hydrogen outlet port of the reforming module (3).

6. The methanol reforming hydrogen production apparatus as described in claim 1, characterized in that, The methanol-water supply regulation module (2) is a methanol pump.

7. A hydrogen fuel cell, characterized in that, Includes a methanol reforming hydrogen production apparatus as described in any one of claims 1 to 6.

8. A fuel cell power unit, characterized in that, Including the hydrogen fuel cell as described in claim 7; The hydrogen fuel cell is connected to the electrical equipment to provide power to the equipment.

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