Control methods and systems for methanol supply systems

Abstract

This invention provides a control method and system for a methanol supply system. The methanol supply system includes at least a signal acquisition system and a control system. The signal acquisition system further includes a first wireless transmission module, and the control system further includes a second wireless transmission module. The method includes: receiving parameter signals acquired by the signal acquisition system in the following states: stop after nitrogen testing, standby start, and standby stop. The parameter signals are obtained through transmission via the first and second wireless transmission modules. The parameter signals include at least the pressure and temperature of methanol in the hazardous area. Based on the parameter signals, it is determined whether to enter the restart mode in the ring network design or to enter the first step of the system operation, the scavenging process. This method features high fault tolerance, ensuring the reliability of system operation. Simultaneously, the use of a wireless transmission method avoids potential risks from hazardous areas and saves a significant amount of signal cables.

Description

Technical Field

[0001] This invention belongs to the field of wireless communication technology, and specifically relates to a control method and system for a methanol supply system. Background Technology

[0002] The methanol supply system uses methanol fuel pumps to introduce methanol feedstock into the system and inject it into the ship's main and auxiliary engines and boilers. Existing logic control lacks a ring network design, failing to address reliability issues related to fault diagnosis. Furthermore, current technology uses hard-point connections to transmit system parameters through hazardous areas, resulting in wasted cabling and inherent risks. The main drawbacks of existing technology are as follows: 1. The non-ring network design leads to a high failure rate. 2. Hard-point information transmission cannot avoid potential risks from hazardous areas. Therefore, developing a control method for the methanol supply system has become a pressing technical challenge in this field. Summary of the Invention

[0003] The purpose of this invention is to provide a control method and system for a methanol supply system.

[0004] According to a first aspect of the present invention, a control method for a methanol supply system is provided, applied to a methanol supply system, the methanol supply system including at least a signal acquisition system and a control system, the signal acquisition system further including a first wireless transmission module, and the control system further including a second wireless transmission module, the method comprising: In the states of stop, standby start, and standby stop after nitrogen testing, the system receives parameter signals acquired by the signal acquisition system. These parameter signals are obtained through transmission via the first wireless transmission module and the second wireless transmission module. The parameter signals include at least the pressure and temperature of methanol in the hazardous area. Based on the parameter signals, determine whether to enter the restart mode in the ring network design or to enter the scavenging process, the first step of system operation.

[0005] Optionally, the method further includes: If the parameter signal exceeds the first preset threshold, an alarm will be triggered.

[0006] Optionally, the method further includes: After the purging is completed, obtain the system parameters and process parameters of all instruments and equipment; The system parameters, process parameters, and preset values ​​are compared with a second preset threshold, but no instruments or equipment are powered on.

[0007] Optionally, the method further includes: A nitrogen leak test procedure is performed before methanol fuel is supplied.

[0008] Optionally, the method further includes: At the beginning, the inlet valve is opened, methanol gradually fills the pipeline, and the remaining nitrogen is discharged through the exhaust valve. After the exhaust phase is completed, the system is filled with liquid methanol, and the feed pump and circulation pump begin to pressurize. At the same time, the temperature control circuit is activated. When the temperature and pressure reach the set values ​​and there are no alarms, the startup procedure is completed and a ready signal is provided to the engine control system.

[0009] Optionally, the method further includes: In the feeding process, the outlet valve is opened, and methanol is supplied at the pressure and temperature required by the main unit; Once export pressure stabilizes, switch to operational status.

[0010] Optionally, the method further includes: In standby and shutdown mode, the system is isolated and filled with methanol; During the standby shutdown process, all instrument monitoring systems and their process parameters are compared with acceptable limits, but the equipment is powered off. Upon receiving a restart command, preparations will be made to restart.

[0011] According to a second aspect of the present invention, a control system for a methanol supply system is provided, comprising the control method for a methanol supply system as described in any one of the first aspects of the present invention, including: The receiving module is used to receive parameter signals acquired by the signal acquisition system in the states of stop, standby start, and standby stop after nitrogen testing. The parameter signals are obtained through transmission via the first wireless transmission module and the second wireless transmission module. The parameter signals include at least the pressure and temperature of methanol in the hazardous area. The control module is used to determine, based on the parameter signals, whether to enter the restart mode in the ring network design or to enter the scavenging process, the first step of the system operation.

[0012] Thirdly, this application discloses an electronic device comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to perform the method as described in any of the preceding aspects.

[0013] Fourthly, this application discloses a non-transitory computer-readable storage medium in which, when the instructions in the storage medium are executed by a processor of an electronic device, enable the electronic device to perform the methods described in any of the preceding aspects.

[0014] Fifthly, this application discloses a computer program product in which, when the instructions in the computer program product are executed by a processor of an electronic device, the electronic device is enabled to perform the method described in any of the preceding aspects.

[0015] The beneficial effects of this invention are as follows: As can be seen from the above scheme, the embodiments of the present invention provide a control method and system for a methanol supply system, applied to a methanol supply system. The methanol supply system includes at least a signal acquisition system and a control system. The signal acquisition system further includes a first wireless transmission module, and the control system further includes a second wireless transmission module. The method includes: receiving parameter signals acquired by the signal acquisition system in the states of stop after nitrogen testing, standby start, and standby stop, wherein the parameter signals are obtained through transmission via the first and second wireless transmission modules; the parameter signals at least include the pressure and temperature of methanol in the hazardous area; and determining, based on the parameter signals, whether to enter the restart mode in the ring network design or to enter the first step of the system operation, the scavenging process. It has the characteristics of high fault tolerance, ensuring the reliability of system operation. At the same time, the use of a wireless transmission-based method avoids the potential risks brought by hazardous areas and saves a large amount of signal cables. Attached Figure Description

[0016] Figure 1 This is a flowchart illustrating a control method for a methanol supply system according to an embodiment. Figure 2 This is a flowchart illustrating another control method for a methanol supply system provided according to an embodiment; Figure 3 This is a schematic diagram of the control system of a methanol supply system according to an embodiment; Figure 4 This is a flowchart illustrating another control method for a methanol supply system provided according to an embodiment; Figure 5 This is a structural block diagram of a control device for a methanol supply system according to this application.

[0017] Figure 6 This is a block diagram of an electronic device according to this application.

[0018] Figure 7 This is a block diagram of a computer-readable storage medium according to this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] Reference Figure 1 This paper illustrates a flowchart of a control method for a methanol supply system according to this application. The methanol supply system includes at least a signal acquisition system and a control system. The signal acquisition system further includes a first wireless transmission module, and the control system further includes a second wireless transmission module. Specifically, the method may include the following steps: S101. In the states of stop, standby start, and standby stop after nitrogen testing, receive parameter signals collected by the signal acquisition system, wherein the parameter signals are obtained through the first wireless transmission module and the second wireless transmission module; the parameter signals include at least the pressure and temperature of methanol in the hazardous area. S102. Based on the parameter signals, determine whether to enter the restart mode in the ring network design or the first step of the system operation, the scavenging process.

[0021] like Figure 2 The diagram shows the methanol supply system flowchart. The methanol refueling system injects methanol fuel into the methanol fuel storage tank, and the methanol transfer pump injects fuel into the methanol day tank. The methanol fuel is supplied to the auxiliary and main engines via the main and auxiliary engine methanol supply systems. The methanol supply system uses methanol fuel pumps to bring methanol feedstock into the system and inject it into the ship's main and auxiliary engines. This application provides a safe and reliable control system logic, solving the safety and stability issues of the methanol supply system operation.

[0022] Another embodiment of this application further supplements the description of the control method for the methanol supply system provided in the above embodiments.

[0023] like Figure 3 As shown, a ring network design is adopted, featuring safety, stability, and rapid response. The ring network design allows each process module in the system to execute the next instruction based on logical judgment. In particular, after the preparatory purging and nitrogen testing, the above processes can be skipped, directly proceeding to the "start-feed-run-stop-standby stop-restart" system flow. This part forms a ring network design. Safety: Because any node in the ring network can access the system's processes through other paths, and the ring network uses a point-to-point data transmission method, data does not pass through the central node during transmission. Therefore, it has higher security compared to existing traditional technologies. If the technical parameters of a node in the ring network experience alarm failures, it will not affect the entire ring network.

[0024] Stability: Because the entire ring network is interconnected, even if one node fails, other nodes can remain connected. The control system can logically determine that there are no bottlenecks or conflicts in the ring network. It is easy to manage; the management method of a ring network is relatively simple. Monitoring and management are convenient. This fully satisfies the system's security and stability requirements. It effectively reduces the system failure rate.

[0025] Rapid Response: After a series of process controls including purging, nitrogen testing, startup, standby startup, and standby shutdown, the entire system monitors technical parameters such as pressure and temperature. If these parameters are within reasonable ranges, the system is directly started via a ring network design. This saves time on purging and nitrogen testing, improving the efficiency and response speed of the control system.

[0026] Wireless transmission function: Through wireless output and input modules, a series of technical parameters of the methanol supply system collected by the signal acquisition junction box are promptly transmitted to the alarm control system. This wireless transmission adopts a dual-transmitter, dual-receiver wireless architecture, with high wireless transmission rate and a reliable transmission distance of over 1 kilometer. Based on wireless transmission, the control system wirelessly receives technical parameters such as methanol pressure and temperature in hazardous areas during states such as stop after nitrogen testing, standby start, and standby stop. Logical analysis determines whether to enter the restart mode in the ring network design or the first step of the system operation, the scavenging process. Without this system, these technical parameters would need to be connected to the equipment in the control system via hard wiring, which would have to traverse hazardous areas. This places higher demands on the data transmission cables. The wireless transmission function avoids the system risks associated with hazardous areas.

[0027] Optionally, the method further includes: If the parameter signal exceeds the first preset threshold, an alarm will be triggered.

[0028] Optionally, the method further includes: After the purging is completed, obtain the system parameters and process parameters of all instruments and equipment; The system parameters, process parameters, and preset values ​​are compared with the second preset threshold, but no instruments or equipment are powered on.

[0029] Optionally, the method further includes: A nitrogen leak test procedure is performed before methanol fuel is supplied.

[0030] Optionally, the method further includes: At the beginning, the inlet valve is opened, methanol gradually fills the pipeline, and the remaining nitrogen is discharged through the exhaust valve. After the exhaust phase is completed, the system is filled with liquid methanol, and the feed pump and circulation pump begin to pressurize. At the same time, the temperature control circuit is activated. When the temperature and pressure reach the set values ​​and there are no alarms, the startup procedure is completed and a ready signal is provided to the engine control system.

[0031] Optionally, the method further includes: In the feeding process, the outlet valve is opened, and methanol is supplied at the pressure and temperature required by the main unit; Once export pressure stabilizes, switch to operational status.

[0032] Optionally, the method further includes: In standby and shutdown mode, the system is isolated and filled with methanol; During the standby shutdown process, all instrument monitoring systems and their process parameters are compared with acceptable limits, but the equipment is powered off. Upon receiving a restart command, preparations will be made to restart.

[0033] like Figure 4 As shown in Figure 2.1, purging is complete: In the purging-completed state, the system is isolated (inlet, outlet, recirculation, vent, and exhaust valves are closed) and there is no methanol. This state can be achieved with power on or through the purging procedure. In the purging-completed state, all instruments monitor the system and its process parameters and compare them to acceptable limits, but no equipment is powered on. An alarm will be triggered if an anomaly occurs. If no alarm is activated, the system can be started using the startup procedure to perform a nitrogen leak test or enter maintenance mode.

[0034] 2.2 N2 Leak Test: A nitrogen leak test procedure must be performed before supplying methanol fuel to the module to ensure there is no leak. It can only be started if no alarm is activated. The module will only stop when the nitrogen leak test passes without any issues.

[0035] 2.3 Stop During shutdown, the system is isolated and prepared for startup. In the shutdown state, all instruments monitor the system and its process parameters and compare them to acceptable limits, but no equipment is powered. This can also be achieved through an emergency shutdown, allowing the system to be partially filled with methanol.

[0036] 2.4 Startup The startup procedure prepares the system for injecting methanol into the main unit. Initially, the inlet valve opens, methanol gradually fills the pipeline, and residual nitrogen is expelled through the vent valve. After the venting phase is complete, the module is filled with liquid methanol, and the feed pump and circulation pump begin pressurization. Simultaneously, the temperature control loop activates. When the temperature and pressure reach their set values ​​without any alarms, the startup procedure is complete, and a ready signal is sent to the engine control system (ECS).

[0037] 2.5 Standby Startup In standby start-up mode, the system is fully filled with internally circulated pressurized methanol, the pump runs continuously but the outlet valve remains closed. The system awaits an injection command from the operator or the engine control system.

[0038] 2.6 Material Supply During the feeding process, the system opens the outlet valve and supplies methanol at the pressure and temperature required by the main unit. Once the outlet pressure stabilizes, the system switches to operating mode.

[0039] 2.7 Running Under normal operating conditions, the system continuously supplies power to the host. If no alarm is triggered, this operating state will continue.

[0040] 2.8 Stop During the shutdown procedure, the system smoothly stops supplying methanol to the engine, gradually reduces the pressure, stops the pump, and isolates the system.

[0041] 2.9 Standby Stop In standby shutdown mode, the system is isolated and filled with methanol. During standby shutdown, all instruments monitor the system and its process parameters and compare them against acceptable limits, but the equipment is powered off. Once a restart command is issued from the operator or ECS, the system will be ready to restart.

[0042] 2.10 Restart The restart procedure returns the system from standby stop to standby start. The feed pump and circulation pump are energized, pressure control is activated and reaches the desired setpoint. The glycol-water heating circuit is activated. If the restart procedure completes without alarms, the system is in standby start state. If the methanol fuel supply signal is activated, the system will automatically switch to the feed procedure.

[0043] 2.11 Purge The purging procedure isolates the system from methanol and completely vents it. Pressurized nitrogen is injected into the pipeline, purging the methanol through the vent line. All vent valves open, and the vent pump operates. The presence of liquid is monitored to ensure that the amount of methanol remaining in the module is as low as possible. This procedure is initiated in an emergency (alarm severity level 0) via manual operator command (from a stop condition only) or via an external alarm signal (from the ECS). The system is in the purge-completed state when this procedure ends. The purging can only be interrupted by manually initiating the procedure by the operator using the purging button.

[0044] 2.12 Emergency Stop Emergency stop refers to the sudden shutdown and isolation of the system. The pump stops, and all pneumatic valves enter a fault state. This procedure is triggered by an alarm severity level of 1, the emergency stop button, or an emergency signal from the main control system. After the emergency stop procedure is completed, the system will return to its stopped state.

[0045] 2.13 Maintenance The maintenance condition refers to the skid being in a maintenance state. Upon activation (only from the purging-complete condition), a pop-up window freezes the screen, preventing system startup. After completion, a nitrogen leak test procedure must be performed before restarting.

[0046] This application's embodiments overcome the limitations of existing control methods, such as slow response, wasted cable, and inability to avoid potential hazards in dangerous areas. They leverage the cable-saving features of wireless transmission module technology, coupled with the reduced failure rate resulting from ring network design.

[0047] The ring network design of the methanol supply system in this embodiment fully satisfies the system's safety and stability requirements, and wirelessly transmits system data to the control system. This avoids system risks associated with hazardous areas and improves system safety. The ring network design of the methanol supply system effectively reduces the system failure rate. The use of dual-transmitter, dual-receiver wireless transmission to transfer system data to the control system avoids system risks associated with hazardous areas.

[0048] It should be noted that each of the implementable methods in this embodiment can be implemented individually or in any combination without conflict. This application does not limit this.

[0049] Another embodiment of this application provides a control system for a methanol supply system, used to execute the control method for the methanol supply system provided in the above embodiments.

[0050] like Figure 5 The diagram shown is a structural schematic of the control system of the methanol supply system provided in this embodiment of the application. The control system of this methanol supply system is used to execute the control method of the methanol supply system described above, and includes a receiving module 501 and a control module 502, wherein: The receiving module 501 is used to receive parameter signals collected by the signal acquisition system in the states of stop, standby start, and standby stop after nitrogen testing. The parameter signals are obtained by transmission through the first wireless transmission module and the second wireless transmission module. The parameter signals include at least the pressure and temperature of methanol in the hazardous area. The control module 502 is used to determine whether to enter the restart mode in the ring network design or to enter the first step of the system operation, the scavenging process, based on the parameter signals.

[0051] Regarding the apparatus in this embodiment, the specific manner in which each module performs its operations has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0052] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0053] Optionally, this application also provides an electronic device, including: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the various processes of the above method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0054] This application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the above-described method embodiments and achieves the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0055] Figure 6 This is a block diagram illustrating an electronic device 800. For example, the electronic device 800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0056] Reference Figure 6 The electronic device 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0057] Processing component 802 typically controls the overall operation of electronic device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0058] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of this data include instructions for any application or method operating on electronic device 800, contact data, phonebook data, messages, images, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0059] Power supply component 806 provides power to various components of electronic device 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 800.

[0060] Multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0061] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when electronic device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0062] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0063] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of electronic device 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of electronic device 800, changes in position of electronic device 800 or a component of electronic device 800, the presence or absence of user contact with electronic device 800, orientation or acceleration / deceleration of electronic device 800, and temperature changes of electronic device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0064] Communication component 816 is configured to facilitate wired or wireless communication between electronic device 800 and other devices. Electronic device 800 can access wireless networks based on communication standards, such as WiFi, carrier networks (such as 2G, 3G, 4G, or 5G), or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast operation information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0065] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0066] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of an electronic device 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0067] Figure 7 This is a block diagram illustrating a computer-readable storage medium 1900. For example, the computer-readable storage medium 1900 can be provided as a server.

[0068] Reference Figure 7 The computer-readable storage medium 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by memory 1932 for storing instructions executable by the processing component 1922, such as an application program. The application program stored in memory 1932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1922 is configured to execute instructions to perform the methods described above.

[0069] The computer-readable storage medium 1900 may also include a power supply component 1926 configured to perform power management of the computer-readable storage medium 1900, a wired or wireless network interface 1950 configured to connect the computer-readable storage medium 1900 to a network, and an input / output (I / O) interface 1958. The computer-readable storage medium 1900 can operate on an operating system stored in memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0070] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0071] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0072] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0073] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed in this application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0074] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0075] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0076] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0077] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0078] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0079] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0080] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A control method for a methanol supply system, characterized in that, The method is applied to a methanol supply system, wherein the methanol supply system includes at least a signal acquisition system and a control system, the signal acquisition system further includes a first wireless transmission module, and the control system further includes a second wireless transmission module. In the states of stop, standby start, and standby stop after nitrogen testing, the system receives parameter signals acquired by the signal acquisition system. These parameter signals are obtained through transmission via the first wireless transmission module and the second wireless transmission module. The parameter signals include at least the pressure and temperature of methanol in the hazardous area. Based on the parameter signals, determine whether to enter the restart mode in the ring network design or the scavenging process, the first step of system operation; The method further includes: If the parameter signal exceeds the first preset threshold, an alarm will be triggered; The method further includes: After the purging is completed, obtain the system parameters and process parameters of all instruments and equipment; The system parameters and process parameters are compared with a second preset threshold, but no instruments or equipment are powered on; if the range is exceeded, an alarm will be triggered. The method further includes: A nitrogen leak test procedure shall be performed before methanol fuel is supplied. The method further includes: At the beginning, the inlet valve is opened, methanol gradually fills the pipeline, and the remaining nitrogen is discharged through the exhaust valve. After the exhaust phase is completed, the system is filled with liquid methanol, and the feed pump and circulation pump begin to pressurize. At the same time, the temperature control circuit is activated. When the temperature and pressure reach the set values ​​and there are no alarms, the startup procedure is completed and a ready signal is provided to the engine control system.

2. The control method for the methanol supply system according to claim 1, characterized in that, The method further includes: In the feeding process, the outlet valve is opened, and methanol is supplied at the pressure and temperature required by the main unit; Once export pressure stabilizes, switch to operational status.

3. The control method for the methanol supply system according to claim 2, characterized in that, The method further includes: In standby and shutdown mode, the system is isolated and filled with methanol; During the standby shutdown process, all instrument monitoring systems and their process parameters are compared with acceptable limits, but the equipment is powered off. Upon receiving a restart command, preparations will be made to restart.

4. A control system for a methanol supply system, characterized in that, The control method for the methanol supply system according to any one of claims 1-3 includes: The receiving module is used to receive parameter signals acquired by the signal acquisition system in the states of stop, standby start, and standby stop after nitrogen testing. The parameter signals are obtained through transmission via the first wireless transmission module and the second wireless transmission module. The parameter signals include at least the pressure and temperature of methanol in the hazardous area. The control module is used to determine, based on the parameter signals, whether to enter the restart mode in the ring network design or to enter the scavenging process, the first step of the system operation.

5. An electronic device, characterized in that, include: A processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the method as described in any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method as described in any one of claims 1 to 3.

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