Methanol power generation system for emergency rescue and control method thereof

Abstract

The invention relates to the technical field of methanol power generation systems, and particularly provides a methanol power generation system for emergency rescue and a control method thereof.The methanol power generation system for emergency rescue comprises a hydrogen storage device, a hydrogen production and power generation module, an inverter, a power source and a control module, and the hydrogen storage device is connected with the hydrogen production and power generation module; the hydrogen production and power generation module is provided with a hydrogen production module and a power generation module, an exhaust valve is arranged between the hydrogen production module and the hydrogen storage device, and an air inlet valve is arranged between the power generation module and the hydrogen production module. When the methanol power generation system for emergency rescue is started, the control module realizes different strategies according to the starting electric quantity, the hydrogen production and power generation module enters an operation strategy after being started, at the moment, an external load is cooperatively powered by the power generation module and the power supply, and it is ensured that a stable power supply can be provided for the external load within millisecond-level time under the emergency situation. In addition, the invention further provides shutdown, emergency shutdown, standby and automatic liquid injection strategies.

Description

Technical Field

[0001] The present application relates to the technical field of methanol power generation systems, and in particular to a methanol power generation system for emergency rescue and a control method thereof. Background Art

[0002] The green energy network formed by methanol-to-hydrogen coupled with fuel cells is one of the most feasible ways to transform hydrogen energy from experimental research to industrial application. Using the methanol power generation system as an emergency power source requires millisecond-level power supply, stable output under different power demands, the ability to shut down at any time, and automatic operation.

[0003] However, when generating electricity in the methanol power generation system in the prior art, the methanol steam reforming hydrogen production reactor requires a long preheating time, and the accumulation of hydrogen pressure at the fuel cell inlet also requires time. As a result, in scenarios such as emergency rescue that require rapid power generation, the methanol power generation system cannot output power in time to supply rescue equipment.

[0004] Therefore, the prior art has defects and shortcomings and needs further improvement and development. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present application aims to provide a methanol power generation system and a control method thereof for emergency rescue, aiming to solve the problem in the prior art that the methanol power generation system cannot output power instantly.

[0006] A technical solution adopted by the present application to solve the technical problem is as follows: A methanol power generation system for emergency rescue, used for emergency rescue and disaster relief power generation, which includes: A methanol power generation system for emergency rescue, used for emergency rescue and disaster relief power generation, which includes:

[0007] A hydrogen storage device, wherein the hydrogen storage device is used to store hydrogen;

[0008] A hydrogen production power generation module, wherein the hydrogen storage device is connected to the hydrogen production power generation module, the hydrogen production power generation module comprises a hydrogen production module and a power generation module, an exhaust valve is provided between the hydrogen production module and the hydrogen storage device, an intake valve is provided between the power generation module and the hydrogen production module, the exhaust valve is used to communicate with the atmosphere, and the intake valve is used to control the amount of hydrogen input into the power generation module;

[0009] An inverter, wherein the inverter is used to convert direct current into alternating current to supply an external load;

[0010] A power source, the power source is used to store the electric energy generated by the power generation module;

[0011] A control module, the control module is used for data monitoring and control of the hydrogen production and power generation module, the inverter, the hydrogen storage device and the power supply;

[0012] The control module is connected to the hydrogen production and power generation module, the inverter, the hydrogen storage device and the power supply through a control circuit; after receiving the power-on instruction, when the control module determines that the power supply has a power level greater than the minimum power-on power level, the inverter is started, the external load is powered by the power supply, and the hydrogen production and power generation module is started by the power supply;

[0013] When the control module determines that the power of the power supply is less than the minimum startup power, the inverter starts, the hydrogen of the hydrogen storage device is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production module starts to start with the power supply.

[0014] Optionally, the minimum startup power is set to 10% to 30% of the power supply power, and the default value of the minimum startup power is set to 20% of the power supply power.

[0015] Optionally, the hydrogen production module comprises:

[0016] A methanol water raw material tank, wherein the methanol water raw material tank is used to store the methanol water raw material;

[0017] A methanol hydrogen production device, the methanol hydrogen production device is used to generate hydrogen, and the feed inlet of the methanol hydrogen production device is connected to the methanol water raw material tank;

[0018] A hydrogen purification module, the hydrogen purification module is connected to the methanol hydrogen production device, the hydrogen purification module is used to purify hydrogen, the hydrogen purification module is provided with a three-way valve, the three-way valve is used to divert the purified hydrogen, the three-way valve includes a first end, a second end and a third end, the first end is connected to the gas outlet of the hydrogen purification module, the exhaust valve is provided at the end of the second end, and the third end is connected to the hydrogen storage device;

[0019] Wherein, the control module is electrically connected to the methanol hydrogen production device, the hydrogen purification module and the hydrogen storage device.

[0020] Optionally, the control module is electrically connected to a pressure sensor in the hydrogen storage device, and the control module can adjust the raw material feed amount of the methanol hydrogen production device and the hydrogen purification module according to the pressure change in the hydrogen storage device to ensure a stable hydrogen supply.

[0021] Optionally, the methanol power generation system for emergency rescue also includes a transformer module, which is electrically connected to the control module, the methanol hydrogen production device, the hydrogen purification module, the power generation module, the power supply and the inverter, and is used to provide different voltage requirements for the methanol hydrogen production device, the hydrogen purification module, the power generation module, the power supply and the inverter control circuit.

[0022] Optionally, the control module is provided with a power button, a standby button, a power off button, an emergency stop button and a maintenance button, wherein when the emergency stop button is pressed, the inverter is shut down, the external power supply is disconnected, the power generation module and the methanol hydrogen production device are shut down urgently, the valves are fully opened, and the system gas is exhausted.

[0023] Optionally, the methanol hydrogen production device, hydrogen purification module, power generation module and power supply are all modularly configured, and the hydrogen storage device includes a hydrogen buffer bottle and a hydrogen storage bottle connected in parallel, the hydrogen buffer bottle is used to buffer the hydrogen supplied to the power generation module, and the hydrogen storage bottle is used to temporarily store hydrogen.

[0024] Another technical solution adopted by the present application to solve the technical problem is as follows: a control method for the methanol power generation system for emergency rescue as described above, the control method comprising:

[0025] When the methanol power generation system for emergency rescue is started, the exhaust valve and the intake valve are closed, and the control module determines whether the power of the power supply is greater than the minimum startup power;

[0026] If the control module detects that the power of the power supply is greater than the minimum startup power, the inverter is started, the external load is powered by the power supply, and the hydrogen production power generation module is started by the power supply;

[0027] If the control module detects that the power supply power is less than the minimum startup power, the inverter starts, the hydrogen temporarily stored in the hydrogen storage device is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production module starts to start with the power supply.

[0028] Optionally, if the control module detects that the power of the power supply is greater than the minimum startup power, the inverter is started, and after the external load is powered by the power supply, the following steps are included:

[0029] While the power is supplied, the hydrogen production module is started, the hydrogen production module is initialized and begins to preheat, and the pressure of the hydrogen storage device is monitored. When the pressure of the hydrogen storage device reaches the starting pressure, the exhaust valve is opened, and the exhaust operation is performed for 1 to 2 minutes to remove inefficient gases, and then the exhaust valve is closed and the intake valve is opened.

[0030] Optionally, if the control module detects that the power of the power supply is greater than the minimum startup power, the inverter is started, the external load is powered by the power supply, and after the hydrogen production and power generation module is powered by the power supply, the following steps are included:

[0031] While the power is supplied, the hydrogen production module is started, the hydrogen production module is initialized and begins to preheat, and the pressure of the hydrogen storage device is monitored. When the pressure of the hydrogen storage device reaches the starting pressure, the exhaust valve is opened, and the exhaust operation is performed for 1 to 2 minutes to remove inefficient gases, and then the exhaust valve is closed and the intake valve is opened.

[0032] Optionally, if the control module detects that the power supply power is less than the minimum startup power, the inverter is started, the hydrogen temporarily stored in the hydrogen storage device is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production module is started by the power supply, including:

[0033] The hydrogen temporarily stored in the hydrogen storage device is supplied to the power generation module, and the power generation module operates at low power; the hydrogen production module is started by the power supply;

[0034] After the methanol power generation system for emergency rescue is started, it enters the operating state;

[0035] If the control module detects a maintenance signal, the methanol power generation system for emergency rescue automatically shuts down, and if a power-on command is received, no subsequent actions are performed;

[0036] If the control module does not detect the maintenance signal, the control module adjusts the feed amount of the raw material of the hydrogen production power generation module, and the methanol power generation system for emergency rescue enters a normal operating state; if the control module detects that the power of the power supply is less than the minimum operating power, the minimum operating power is set to 20% to 30% of the power of the power supply, and the inverter is shut down; if the control module detects that the power of the power supply is greater than the operating power, the operating power is set to 20% to 30% of the power of the power supply, and the inverter is turned on;

[0037] When the control module detects a standby signal, the inverter shuts down. If the power supply is less than the standby power, the standby power is set to 75% to 80% of the power supply, and the power generation module runs at high power until the power supply is greater than the standby power, and the standby program continues to be executed;

[0038] If the power generation module is not in the shutdown state, the power of the power generation module is set to 0, and then the power generation module is shut down. When the power generation module is shut down, the exhaust valve is opened, and the hydrogen production module is on standby. The exhaust valve is closed after being opened for 4 minutes. When the standby power is less than the shutdown power, the shutdown power is set to 30% to 40% of the power supply power, and the hydrogen production module is shut down;

[0039] When the control module detects a shutdown signal, the inverter shuts down. If the power generation module is not shut down, the power of the power generation module is set to 0, and then the power generation module shuts down. When the power generation module shuts down, the exhaust valve is opened, the hydrogen production module is on standby, and the exhaust valve is closed after 4 minutes.

[0040] When the control module detects an emergency shutdown signal, the inverter shuts down, and after the power generation module sends two emergency shutdown signals, the hydrogen production module shuts down urgently, the exhaust valve opens, and the exhaust valve closes after two minutes of opening, and the intake valve is closed at the same time;

[0041] When the control module detects that the raw material liquid of the hydrogen production power generation module is at a low level, the raw material feed pump of the hydrogen production power generation module is turned on, and when the raw material liquid is added to a high level, the raw material feed pump is turned off.

[0042] Beneficial effect: The present application provides a methanol power generation system for emergency rescue and a control method thereof, wherein the methanol power generation system for emergency rescue is connected to the hydrogen production power generation module, the inverter, the hydrogen storage device and the power supply through the control circuit through the control module; after receiving the power-on instruction, when the control module determines that the power supply is greater than the minimum power-on power, the inverter is started, the external load is powered by the power supply, and the hydrogen production power generation module is started by the power supply; when the control module determines that the power supply is less than the minimum power-on power, the inverter is started, the hydrogen of the hydrogen storage device is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production module is started by the power supply. This ensures that a stable power supply can be provided to the external load within milliseconds in an emergency, thereby meeting the power demand of emergency rescue equipment, greatly reducing the startup delay of the system, and improving the response speed of power supply, so that the methanol power generation system for emergency rescue can be used in scenarios where rapid power supply is urgently needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a functional principle schematic block diagram of a methanol power generation system for emergency rescue provided in this application;

[0044] Figure 2 It is another functional principle schematic block diagram of the methanol power generation system for emergency rescue provided in this application;

[0045] Figure 3 It is a schematic flow chart of the control method of the methanol power generation system for emergency rescue provided in this application;

[0046] Figure 4 It is a system startup flow chart of a methanol power generation system for emergency rescue provided in this application;

[0047] Figure 5 It is a system operation flow chart of the methanol power generation system for emergency rescue provided in this application;

[0048] Figure 6 It is a system standby flow chart of a methanol power generation system for emergency rescue provided in this application;

[0049] Figure 7 It is a shutdown flow chart of a methanol power generation system for emergency rescue provided in this application;

[0050] Figure 8 It is an emergency shutdown flow chart of a methanol power generation system for emergency rescue provided in this application;

[0051] Fig. 9 This is an automatic rehydration flow chart of a methanol power generation system for emergency rescue provided in this application.

[0052] Description of reference numerals:

[0053] 10. Methanol power generation system for emergency rescue; 11. Methanol hydrogen production device; 12. Hydrogen purification module; 13. Hydrogen storage device; 131. Intake valve; 14. Power generation module; 15. Inverter; 16. Power supply; 17. Control module; 18. Exhaust valve; 19. Transformer module. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0055] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0056] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] Please refer to Figure 1 and Figure 2 In the first embodiment of the present application, a methanol power generation system 10 for emergency rescue is provided, which is used for emergency rescue and disaster relief power generation. The methanol power generation system 10 for emergency rescue includes a hydrogen storage device 13, a hydrogen production power generation module, an inverter 15, a power supply 16 and a control module 17; the hydrogen storage device 13 is used to store hydrogen; the hydrogen storage device 13 is connected to the hydrogen production power generation module, and the hydrogen production power generation module has a hydrogen production module and a power generation module. An exhaust valve 18 is provided between the hydrogen production module and the hydrogen storage device 13, and the power generation module An air intake valve 131 is provided between the module and the hydrogen production module, the exhaust valve 18 is used to communicate with the atmosphere, and the air intake valve 131 is used to control the amount of hydrogen input into the power generation module; the inverter 15 is used to convert direct current into alternating current to supply an external load; the power supply 16 is used to store the electric energy generated by the power generation module; the control module 17 is used to control the hydrogen production power generation module, the inverter 15, the hydrogen storage device 13 and the power supply 16; wherein, the control module 17 and the hydrogen production power generation module, the inverter 15, the hydrogen storage device 13 and the power supply 16 are electrically connected; after the methanol power generation system for emergency rescue is started, the control module 17 remains in the turned-on state. When the control module 17 determines that the power of the power supply 16 is greater than the minimum startup power, the inverter 15 is started, the external load is powered by the power supply 16, and the hydrogen production power generation module is powered by the power supply 16 to start; when the control module 17 determines that the power of the power supply 16 is less than the minimum startup power, the inverter 15 is started, the hydrogen of the hydrogen storage device 13 is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production power generation module is powered by the power supply 16 to start, thereby ensuring that in an emergency, the methanol power generation system 10 for emergency rescue can provide a stable power supply 16 for the external load in a very short time, thereby meeting the power demand of the emergency rescue equipment, greatly reducing the startup delay of the methanol power generation system 10 for emergency rescue, and improving the millisecond response speed of the power supply, so that the methanol power generation system 10 for emergency rescue can be used in scenes where rapid power supply is urgently needed, such as disaster relief, rescue and emergency rescue.

[0058] Please refer to Figure 1 In some embodiments, the minimum startup power is set to 10% to 30% of the power of the power supply 16, and the default value of the minimum startup power is set to 20% of the power of the power supply 16, thereby ensuring that the power of the power supply 16 is sufficient to meet the initial power supply demand of the system at startup, improving the safety and reliability of the methanol power generation system 10 for emergency rescue, and avoiding the power supply interruption or system crash that may be caused by the forced startup of the methanol power generation system 10 for emergency rescue when the power is insufficient. It can be adjusted according to different application scenarios, flexibly respond to different power demand scenarios, and ensure that the system can start smoothly under various emergency conditions. The default 20% power ensures that the system has enough power to support short-term operation, making the startup process of the methanol power generation system 10 for emergency rescue smoother.

[0059] Please refer to Figure 2 In some embodiments, the hydrogen production module includes a methanol water raw material tank, a methanol hydrogen production device 11 and a hydrogen purification module 12; the methanol water raw material tank is used to store methanol water raw materials; the methanol hydrogen production device 11 is used to generate hydrogen, and the feed port of the methanol hydrogen production device 11 is connected to the methanol water raw material tank; the hydrogen purification module 12 is connected to the methanol hydrogen production device 11, and the hydrogen purification module 12 is used to purify hydrogen, and the hydrogen purification module 12 is provided with a three-way valve, and the three-way valve is used to divert the purified hydrogen, and the three-way valve includes a first end, a second end and a third end, and the first end is connected to the hydrogen The exhaust valve 18 is arranged at the end of the second end, and the third end is connected to the hydrogen storage device 13; wherein, the control module 17 is electrically connected to the methanol hydrogen production device 11, the hydrogen purification module 12 and the hydrogen storage device 13, so that the methanol power generation system 10 for emergency rescue can achieve a stable supply of hydrogen in the external environment, solve the problem of difficulty in hydrogen production, and can instantly generate high-purity hydrogen on site, thereby reducing the hydrogen transportation cost and safety risks, and also reducing the risk of low power generation efficiency or damage to the power generation module due to insufficient hydrogen purity.

[0060] Please refer to Figure 1In some embodiments, the control module 17 is electrically connected to the pressure sensor in the hydrogen storage device 13. The control module 17 can adjust the raw material feed amount of the methanol hydrogen production device 11 and the hydrogen purification module 12 according to the pressure change in the hydrogen storage device 13 to ensure a stable hydrogen supply. The control module 17 is electrically connected to the hydrogen storage device 13, and adjusts the raw material feed amount of the methanol hydrogen production device 11 and the hydrogen purification module 12 by real-time monitoring of the hydrogen pressure in the storage tank, thereby ensuring that the hydrogen supply of the power generation module 14 is always kept within a reasonable range. In this way, the stability of the hydrogen supply is ensured, the problem of power supply interruption of the power generation module 14 caused by insufficient hydrogen is avoided, unnecessary hydrogen production is reduced, energy is saved, and the overall efficiency of the system is improved. In emergency rescue, the reliability of hydrogen supply is crucial, which further improves the continuous working ability and the ability to respond to emergencies of the methanol power generation system 10 for emergency rescue.

[0061] In some embodiments, the power generation module 14 is a proton exchange membrane fuel cell, which is used to generate electricity through hydrogen-oxygen reaction, and then through the high efficiency, fast response and clean power generation characteristics of the proton exchange membrane fuel cell. The power generation module 14 generates electricity through the reaction of hydrogen and oxygen, and has a high energy conversion efficiency; the power supply 16 is set as a lithium battery pack, which is used to provide a stable power output for the external load during the delay period of the power generation module 14 startup, and then can provide a stable power output for the external load when the power generation module 14 is started, ensuring that the system can continue to supply power when the power generation module 14 is not fully started, avoiding the interruption of power supply.

[0062] Please refer to Figure 1 In some embodiments, the methanol power generation system 10 for emergency rescue further includes a transformer module 19, which is connected to the control module 17. The transformer module 19 is used to provide different voltage requirements for the control circuits of the methanol hydrogen production device 11, the hydrogen purification module 12, the power generation module 14, the power supply 16 and the inverter 15, thereby improving the flexibility of the system in terms of power distribution. The transformer module 19 can efficiently convert direct current into alternating current and dynamically adjust it according to actual power demand. This design makes the power distribution between the methanol hydrogen production device 11, the hydrogen purification module 12, the power generation module 14, the power supply 16 and the inverter 15 more reasonable, ensures the efficient operation of the system under various working conditions, and can adapt to different power demands, thereby improving the adaptability of the system.

[0063] In some embodiments, the control module 17 is provided with a power button, a standby button, a power off button, an emergency stop button and a maintenance button, wherein when the emergency stop button is pressed, the inverter 15 is shut down and the external power supply is disconnected, and at the same time the power generation module 14 and the methanol hydrogen production device 11 are shut down urgently, so that the inverter 15, the power generation module 14 and the methanol hydrogen production device 11 can be quickly shut down in an emergency, and the external power supply can be cut off, thereby protecting the safety of the system and the surrounding environment, thereby greatly enhancing the safety and reliability of the system and ensuring a rapid response in an emergency.

[0064] Please refer to Figure 1 In some embodiments, the methanol hydrogen production device 11, the hydrogen purification module 12, the power generation module 14 and the power supply 16 are all modularly arranged, so that the methanol power generation system 10 for emergency rescue can replace the methanol hydrogen production device 11, the hydrogen purification module 12, the power generation module 14 and the power supply 16 individually or simultaneously without changing the control module 17, and can be quickly repaired, assembled and maintained, further improving the practicality and reliability of the methanol power generation system 10 for emergency rescue.

[0065] In some embodiments, the hydrogen buffer bottle is used to buffer the hydrogen supplied to the power generation module, and the hydrogen storage bottle is used to temporarily store hydrogen. The hydrogen buffer bottle and the hydrogen storage bottle are arranged in parallel, thereby reducing the fluctuation of hydrogen supply and making the power generation process of the power generation module more stable.

[0066] Please refer to Figure 3 In a second embodiment of the present application, a control method for a methanol power generation system for emergency rescue as described above is provided, and the control method includes:

[0067] Step S100: When the methanol power generation system for emergency rescue is started, the exhaust valve and the intake valve are closed, and the control module detects whether the power of the power supply is greater than the minimum startup power.

[0068] Specifically, after pressing the power button, the control module will execute the power-on procedure of the methanol power generation system. First, the control module will close the exhaust valve and the intake valve to prevent gas leakage during the startup process. Next, the control module will determine whether the power of the power supply is lower than the minimum power-on power, which is set to 10% to 30% of the power of the power supply, and the default value of the minimum power-on power is set to 20% of the power of the power supply.

[0069] Step S200: If the control module detects that the power of the power supply is greater than the minimum startup power, the inverter is started, the external load is powered by the power supply, and the hydrogen production power generation module is started by the power supply.

[0070] Specifically, if the control module detects that the power of the power supply is greater than the minimum startup power, the inverter is started, and the power supply supplies power to the external load, thereby achieving millisecond-level rapid startup power supply.

[0071] Step S210, while the power supply is on, start the hydrogen production module, the hydrogen production module is initialized and starts preheating, monitors the pressure of the hydrogen storage device, when the pressure of the hydrogen storage device reaches the starting pressure, opens the exhaust valve, performs exhaust operation for 1 to 2 minutes to remove inefficient gas, then closes the exhaust valve and opens the intake valve.

[0072] Specifically, after the hydrogen production module is successfully started, the hydrogen production module will be preheated and the pressure in the hydrogen storage device will be detected. The control module will continue to monitor until the pressure of the hydrogen storage device is greater than the starting pressure. The default value of the starting pressure is 0.2MPa, and the default value of the starting pressure can be modified. When the pressure reaches the standard, the control module will open the exhaust valve and perform exhaust operation for 1 to 2 minutes to remove inefficient gases. The valve will be closed after opening for 1 to 2 minutes to discharge the gas generated during the startup process due to the unstable temperature of the hydrogen production module.

[0073] Step S300: If the control module detects that the power supply is less than the minimum startup power, the inverter starts, the hydrogen temporarily stored in the hydrogen storage device is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production module starts to start with the power supply.

[0074] Specifically, if the control module detects that the power supply power is less than the minimum startup power, in order to ensure that the external load can work, the inverter will remain in the on state, the hydrogen temporarily stored in the hydrogen storage device will be supplied to the power generation module, and the external load will be powered by the power generation module, thereby achieving millisecond-level startup of the external load.

[0075] Step S310: The hydrogen temporarily stored in the hydrogen storage device is supplied to the power generation module, and the power generation module operates at low power.

[0076] In some embodiments, if the external load has been started, then the hydrogen production module will be initialized to ensure that it starts normally and is ready for hydrogen production. The hydrogen production module is preheated to produce hydrogen, and the hydrogen is sent to the purification module for purification, and the purified hydrogen is transported to the hydrogen storage device. The control module determines the pressure in the hydrogen storage device until the pressure of the hydrogen storage tank is greater than the starting pressure, which is set to 0.2MPa by default. The default value of the starting pressure can be modified. The control module opens the exhaust valve, which is closed after opening for 1 minute to discharge the gas generated when the temperature of the hydrogen production module is not stable in the early stage of startup. After closing the exhaust valve, open the air inlet valve, input the raw material flow rate of the hydrogen production module, until the pressure of the hydrogen storage tank is greater than the operating pressure, which is set to 0.7MPa by default. The default value of the operating pressure can be modified, and the power generation module is initialized. After the power generation module is turned on, set the low-power operation preheating.

[0077] Please refer to Figure 4 , in some embodiments, the control module enters a normal operating state after the startup is completed. If the maintenance button is in the on state, the control module will automatically shut down the control module and execute the operation shutdown strategy. If the maintenance button is turned off, the control module will set the flow rate of the methanol water raw material and increase the output power of the power generation module to enter a normal power supply state. In this state, power complementarity is achieved between the power generation module and the lithium battery to meet the power demand of the external power consumption end. The hydrogen storage device plays an important role in the control module, providing a certain buffering effect on the pressure of hydrogen at the inlet of the power generation module, ensuring that the hydrogen flow rate is controlled, thereby realizing that the power supply and the hydrogen storage device jointly provide a dual buffering effect for the power generation module, and maintaining the stable output of the control module when the power demand fluctuates or the operating conditions change.

[0078] In some embodiments, during operation, if the power supply power is lower than the minimum operating power, the minimum startup power is set to 10% to 30% of the power supply power, and the default value of the minimum startup power is set to 20% of the power supply power, then the inverter will shut down and cut off the power output of the power generation control module to the external load. If the power supply power is higher than the operating power, the default value of the operating power is 70%, and the default value of the operating power can be modified, and the condition that the operating power is greater than the minimum startup power must be met, then the inverter will start and continue to supply power.

[0079] Please refer to Figure 4In some embodiments, when the standby button is pressed, the control module will execute the standby procedure, at which time the inverter will be turned off and the external power supply will be cut off. If the power supply is lower than the standby power, the default value of the standby power is 75%, and the default value of the standby power can be modified. The power generation module will be set to a high power state until the power is restored to a level higher than the standby power, and then continue to execute the standby procedure to ensure that the power of the lithium battery remains within the normal range.

[0080] Please refer to Figure 6 In some embodiments, after pressing the shutdown button, the inverter will immediately enter the shutdown state and cut off the external power output. If the power generation module is not in the shutdown state at this time, the control module will set the power of the power generation module to 0 and then perform the shutdown operation. This process ensures that the power generation module will not continue to consume resources or generate unnecessary energy output during the shutdown period.

[0081] Please refer to Figure 5 and Figure 7 In some embodiments, after the power generation module is successfully shut down, the control module will open the exhaust valve to discharge the gas generated during the operation of the power generation module and the hydrogen production module to ensure that the internal pressure of the control module is normal. At the same time, the hydrogen production module will enter the standby mode to prepare for the next startup of the control module. In the standby mode, the control module maintains the availability of key components to ensure that it can quickly resume operation when needed.

[0082] The control module will continuously monitor the status of the power generation module and perform different operations according to the actual operating conditions, thereby ensuring that the control module can be safely shut down at any time, thereby preventing equipment damage or safety hazards caused by unexpected situations. After the exhaust valve is opened, the control module will maintain this state for 4 minutes to fully discharge excess gas and ensure that the control module is safe and pressure-free. After closing the exhaust valve, the control module will return to the shutdown completion state and prepare for the next startup requirement.

[0083] In some embodiments, in the standby mode, the control module controls the output power of the power generation module to maintain the power supply within a set range, and replenishes the methanol water raw material through an automatic liquid replenishment function.

[0084] Please refer to Figure 8 In some embodiments, when the emergency stop button is pressed in the emergency stop mode of the control module, the inverter will be shut down immediately, cutting off the power output to the external load. At this time, the power generation module will send two emergency stop signals to ensure that the control module responds quickly and stops the production of electricity. Then, the control module will set the hydrogen production module to the emergency stop state to avoid continuing the production of hydrogen under unsafe conditions.

[0085] After the power generation module and hydrogen production module are safely shut down, the control module will open the exhaust valve for 2 minutes to ensure that excess gas is released during the shutdown process to prevent excessive pressure inside the control module. After exhausting, the control module will close the intake valve to cut off the raw material flow into the hydrogen production module to ensure that no raw materials enter the control module in the shutdown state.

[0086] Please refer to Fig. 9 When the liquid level in the methanol water raw material tank drops to a low level, the raw material feed pump set in the hydrogen production module will automatically start and add methanol water raw material to a high level. At this time, the operation of the raw material feed pump ensures that the control module has sufficient raw material supply when needed. When the liquid level reaches a high level, the raw material feed pump will automatically shut down to avoid overflow caused by excessive feeding.

[0087] Similarly, when the liquid level in the hydrogen storage device is at a low level, the control module will start another fuel feed pump to add hydrogen raw materials to the hydrogen storage device to ensure a stable supply of hydrogen. After the liquid level reaches the set high level, the fuel feed pump will be turned off to keep the liquid level in the control module within a safe range.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0089] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0090] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes additional implementations, in which the order shown or discussed may not be followed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0091] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, which can be embodied in any computer-readable medium for use by an instruction execution system, apparatus or device (such as a computer-based system, a system including a processor or other system that can read instructions from an instruction execution system, apparatus or device and execute instructions), or used in combination with these instruction execution systems, apparatuses or devices.

[0092] It should be understood that the various parts of the present application can be implemented with hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented with software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented with hardware, as in another embodiment, any one of the following techniques known in the art or a combination thereof can be used to implement.

[0093] A person skilled in the art may understand that all or part of the steps in the above-mentioned embodiment method may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0094] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0095] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

[0096] In summary, the present application provides a methanol power generation system for emergency rescue and a control method thereof, wherein the methanol power generation system for emergency rescue comprises: a hydrogen storage device, wherein the hydrogen storage device is used to store hydrogen; a hydrogen production power generation module, wherein the hydrogen storage device is connected to the hydrogen production power generation module, wherein the hydrogen production power generation module comprises a hydrogen production module and a power generation module, wherein an exhaust valve is arranged between the hydrogen production module and the hydrogen storage device, wherein an intake valve is arranged between the power generation module and the hydrogen production module, wherein the exhaust valve is used to communicate with the atmosphere, and wherein the intake valve is used to control the amount of hydrogen input into the power generation module; an inverter, wherein the inverter is used to convert direct current into alternating current to supply an external load; an electric A source, the power source is used to store the electric energy generated by the power generation module; a control module, the control module is used to control the hydrogen generation module, the inverter, the hydrogen storage device and the power source; wherein the control module is electrically connected to the hydrogen generation module, the inverter, the hydrogen storage device and the power source; after the control module is started, when the control module determines that the power of the power source is greater than the minimum startup power, the inverter is started, and the external load is powered by the power source; when the control module determines that the power of the power source is less than the minimum startup power, the inverter is started, the hydrogen of the hydrogen storage device is supplied to the power generation module, and the external load is powered by the power generation module. Then, the inverter can be started immediately when the power supply is sufficient, ensuring that a stable power supply can be provided to the external load in a very short time in an emergency, thereby meeting the power demand of emergency rescue equipment, greatly reducing the startup delay of the system, and improving the response speed of power supply, so that the methanol power generation system can be used in scenes where rapid power supply is urgently needed.

[0097] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A methanol power generation system for emergency rescue, used for emergency rescue and disaster relief power generation, characterized in that: include: A hydrogen storage device, wherein the hydrogen storage device is used to store hydrogen; A hydrogen production power generation module, wherein the hydrogen storage device is connected to the hydrogen production power generation module, the hydrogen production power generation module comprises a hydrogen production module and a power generation module, an exhaust valve is provided between the hydrogen production module and the hydrogen storage device, an intake valve is provided between the power generation module and the hydrogen production module, the exhaust valve is used to communicate with the atmosphere, and the intake valve is used to control the amount of hydrogen input into the power generation module; An inverter, wherein the inverter is used to convert direct current into alternating current to supply an external load; A power source, the power source is used to store the electric energy generated by the power generation module; A control module, the control module is used for data monitoring and control of the hydrogen production and power generation module, the inverter, the hydrogen storage device and the power supply; The control module is connected to the hydrogen production and power generation module, the inverter, the hydrogen storage device and the power supply through a control circuit; after receiving the power-on instruction, when the control module determines that the power supply has a power level greater than the minimum power-on power level, the inverter is started, the external load is powered by the power supply, and the hydrogen production and power generation module is started by the power supply; When the control module determines that the power of the power supply is less than the minimum startup power, the inverter starts, the hydrogen of the hydrogen storage device is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production module starts to start with the power supply.

2. The methanol power generation system for emergency rescue according to claim 1, characterized in that: The minimum startup power is set to 10% to 30% of the power supply power, and the default value of the minimum startup power is set to 20% of the power supply power.

3. The methanol power generation system for emergency rescue according to claim 1, characterized in that: The hydrogen production module comprises: A methanol water raw material tank, wherein the methanol water raw material tank is used to store the methanol water raw material; A methanol hydrogen production device, the methanol hydrogen production device is used to generate hydrogen, and the feed inlet of the methanol hydrogen production device is connected to the methanol water raw material tank; A hydrogen purification module, the hydrogen purification module is connected to the methanol hydrogen production device, the hydrogen purification module is used to purify hydrogen, the hydrogen purification module is provided with a three-way valve, the three-way valve is used to divert the purified hydrogen, the three-way valve includes a first end, a second end and a third end, the first end is connected to the gas outlet of the hydrogen purification module, the exhaust valve is provided at the end of the second end, and the third end is connected to the hydrogen storage device; Wherein, the control module is electrically connected to the methanol hydrogen production device, the hydrogen purification module and the hydrogen storage device.

4. The methanol power generation system for emergency rescue according to claim 3 is characterized in that: The control module is electrically connected to the pressure sensor in the hydrogen storage device. The control module can adjust the raw material feed amount of the methanol hydrogen production device and the hydrogen purification module according to the pressure change in the hydrogen storage device to ensure a stable hydrogen supply.

5. The methanol power generation system for emergency rescue according to claim 2, characterized in that: The methanol power generation system for emergency rescue also includes a transformer module, which is electrically connected to the control module, the methanol hydrogen production device, the hydrogen purification module, the power generation module, the power supply and the inverter. The transformer module is used to provide different voltage requirements for the methanol hydrogen production device, the hydrogen purification module, the power generation module, the power supply and the inverter control circuit.

6. The methanol power generation system for emergency rescue according to claim 2, characterized in that: The control module is provided with a power on button, a standby button, a power off button, an emergency stop button and a maintenance button, wherein when the emergency stop button is pressed, the inverter is shut down, the external power supply is disconnected, the power generation module and the methanol hydrogen production device are shut down urgently, the valves are fully opened, and the system gas is exhausted.

7. The methanol power generation system for emergency rescue according to claim 3, characterized in that: The methanol hydrogen production device, hydrogen purification module, power generation module and power supply are all modularly configured. The hydrogen storage device includes a hydrogen buffer bottle and a hydrogen storage bottle connected in parallel. The hydrogen buffer bottle is used to buffer the hydrogen supplied to the power generation module, and the hydrogen storage bottle is used to temporarily store hydrogen.

8. A control method for a methanol power generation system for emergency rescue according to any one of claims 1 to 7, characterized in that: The control method comprises: When the methanol power generation system for emergency rescue is started, the exhaust valve and the intake valve are closed, and the control module determines whether the power of the power supply is greater than the minimum startup power; If the control module detects that the power of the power supply is greater than the minimum startup power, the inverter is started, the external load is powered by the power supply, and the hydrogen production power generation module is started by the power supply; If the control module detects that the power supply power is less than the minimum startup power, the inverter starts, the hydrogen temporarily stored in the hydrogen storage device is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production module starts to start with the power supply.

9. The control method for the methanol power generation system for emergency rescue according to claim 8, characterized in that: If the control module detects that the power of the power source is greater than the minimum startup power, the inverter is started, the external load is powered by the power source, and the hydrogen production and power generation module is started by the power source, including: While the power is supplied, the hydrogen production module is started, the hydrogen production module is initialized and begins to preheat, and the pressure of the hydrogen storage device is monitored. When the pressure of the hydrogen storage device reaches the starting pressure, the exhaust valve is opened, and the exhaust operation is performed for 1 to 2 minutes to remove inefficient gases, and then the exhaust valve is closed and the intake valve is opened.

10. The control method of the methanol power generation system for emergency rescue according to claim 8, characterized in that: If the control module detects that the power supply power is less than the minimum startup power, the inverter is started, the hydrogen temporarily stored in the hydrogen storage device is supplied to the power generation module, the external load is powered by the power generation module, and the hydrogen production module is started by the power supply, including: The hydrogen temporarily stored in the hydrogen storage device is supplied to the power generation module, and the power generation module operates at low power; the hydrogen production module is started by the power supply; After the methanol power generation system for emergency rescue is started, it enters the operating state; If the control module detects a maintenance signal, the methanol power generation system for emergency rescue automatically shuts down, and if a power-on command is received, no subsequent actions are performed; If the control module does not detect the maintenance signal, the control module adjusts the feed amount of the raw material of the hydrogen production power generation module, and the methanol power generation system for emergency rescue enters a normal operating state; if the control module detects that the power of the power supply is less than the minimum operating power, the minimum operating power is set to 20% to 30% of the power of the power supply, and the inverter is shut down; if the control module detects that the power of the power supply is greater than the operating power, the operating power is set to 20% to 30% of the power of the power supply, and the inverter is turned on; When the control module detects a standby signal, the inverter shuts down. If the power supply is less than the standby power, the standby power is set to 75% to 80% of the power supply, and the power generation module runs at high power until the power supply is greater than the standby power, and the standby program continues to be executed; If the power generation module is not in the shutdown state, the power of the power generation module is set to 0, and then the power generation module is shut down. When the power generation module is shut down, the exhaust valve is opened, and the hydrogen production module is on standby. The exhaust valve is closed after being opened for 4 minutes. When the standby power is less than the shutdown power, the shutdown power is set to 30% to 40% of the power supply power, and the hydrogen production module is shut down; When the control module detects a shutdown signal, the inverter shuts down. If the power generation module is not shut down, the power of the power generation module is set to 0, and then the power generation module shuts down. When the power generation module shuts down, the exhaust valve is opened, the hydrogen production module is on standby, and the exhaust valve is closed after 4 minutes. When the control module detects an emergency shutdown signal, the inverter shuts down, and after the power generation module sends two emergency shutdown signals, the hydrogen production module shuts down urgently, the exhaust valve opens, and the exhaust valve closes after two minutes of opening, and the intake valve is closed at the same time; When the control module detects that the raw material liquid of the hydrogen production power generation module is at a low level, the raw material feed pump of the hydrogen production power generation module is turned on, and when the raw material liquid is added to a high level, the raw material feed pump is turned off.

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