Control method and system of methanol supply system

Abstract

The invention provides a control method and system of a methanol supply system, the control method and system are applied to the methanol supply system, the methanol supply system at least comprises a signal acquisition system and a control system, the signal acquisition system further comprises a first wireless transmission module, and the control system further comprises a second wireless transmission module. The method comprises the steps that parameter signals collected by a signal collection system are received in the stop state, the standby start state and the standby stop state after nitrogen testing, and the parameter signals are obtained through transmission of a first wireless transmission module and a second transmission module; the parameter information at least comprises pressure and temperature of methanol in the dangerous area; and according to the parameter signal, judging whether to enter a restart mode in looped network design or enter a scavenging process of a first step of system operation. The method has the characteristic of high error-tolerant rate, and ensures the reliability of system operation. Meanwhile, a method based on wireless transmission is adopted, potential risks caused by dangerous areas are avoided, and a large number of signal cables are saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wireless communications, and in particular relates to a control method and system for a methanol supply system. Background Art

[0002] The methanol supply system uses a methanol fuel pump to bring methanol raw materials into the system and inject them into the ship's main and auxiliary engines and boilers. The existing logic control lacks a ring network design and cannot meet the reliability problem of fault point elimination. In addition, the existing technology uses hard points to connect equipment through dangerous areas to transmit the technical parameters of the system. Cables are wasted and there is a certain degree of danger. The shortcomings of the existing technology are mainly reflected in the following points: 1. The existing technology is not a ring network design, and the failure rate is high. 2. The existing technology hard points transmit information and cannot avoid the potential risks brought by dangerous areas. Therefore, how to provide a control method for the methanol supply system has become a technical problem that needs to be solved urgently in this field. Summary of the invention

[0003] The object of the present 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, which is applied to the methanol supply system, wherein the methanol supply system at least comprises a signal acquisition system and a control system, wherein the signal acquisition system further comprises a first wireless transmission module, and the control system further comprises a second wireless transmission module, wherein the method comprises:

[0005] In the stop, standby start, and standby stop states after the nitrogen test, receiving the parameter signal collected by the signal acquisition system, wherein the parameter signal is obtained by transmitting through the first wireless transmission module and the second transmission module; the parameter information at least includes the pressure and temperature of methanol in the hazardous area;

[0006] According to the parameter signal, it is determined whether to enter the restart mode in the ring network design or the purge process of the first step of the system operation.

[0007] Optionally, the method further comprises:

[0008] If the parameter signal exceeds a first preset threshold, an alarm is issued.

[0009] Optionally, the method further comprises:

[0010] Under the condition of purging completion, obtain the system parameters and process parameters of all instruments and equipment;

[0011] The system parameter, the process parameter and the preset value are compared with a second preset threshold value, but no instrument equipment is powered on.

[0012] Optionally, the method further comprises:

[0013] Prior to supplying methanol fuel, perform a nitrogen leak test procedure.

[0014] Optionally, the method further comprises:

[0015] At the beginning, the inlet valve is opened, methanol gradually fills the pipeline, and the remaining nitrogen is discharged through the exhaust valve;

[0016] After the exhaust stage is completed, the liquid methanol is filled, the feed pump and the circulation pump start to increase the pressure, and at the same time, the temperature control loop is started. When the temperature and pressure reach the set value and there is no alarm, the startup procedure is completed and a ready signal is provided to the engine control system.

[0017] Optionally, the method further comprises:

[0018] In the feeding procedure, the outlet valve is opened and methanol is supplied at the pressure and temperature required by the host;

[0019] When the outlet pressure reaches stability, switch to the operating state.

[0020] Optionally, the method further comprises:

[0021] In standby stop condition, the system is isolated and filled with methanol;

[0022] During the standby shutdown condition, all instruments monitor the system and its process parameters and compare them to acceptable limits, but the equipment is de-energized;

[0023] In the event that a restart command is received, a restart will be prepared.

[0024] According to a second aspect of the present invention, a control system for a methanol supply system is provided, comprising a control method for a methanol supply system according to any one of the first aspects of the present invention, comprising:

[0025] A receiving module, used to receive the parameter signal collected by the signal acquisition system in the stop, standby start, and standby stop states after the nitrogen test, wherein the parameter signal is obtained by transmitting through the first wireless transmission module and the second transmission module; the parameter information at least includes the pressure and temperature of methanol in the hazardous area;

[0026] The control module is used to determine whether to enter the restart mode in the ring network design or the purge process of the first step of system operation according to the parameter signal.

[0027] In a third aspect, the present application shows an electronic device, which includes: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the method described in any of the above aspects.

[0028] In a fourth aspect, the present application illustrates a non-temporary computer-readable storage medium, which, when instructions in the storage medium are executed by a processor of an electronic device, enables the electronic device to execute a method as described in any of the above aspects.

[0029] In a fifth aspect, the present application illustrates a computer program product. When instructions in the computer program product are executed by a processor of an electronic device, the electronic device is enabled to execute the method described in any of the above aspects.

[0030] The beneficial effects brought by the present invention are as follows:

[0031] It can be seen from the above scheme that the embodiment of the present invention provides a control method and system for a methanol supply system, which is applied to a methanol supply system, wherein the methanol supply system at least includes a signal acquisition system and a control system, wherein the signal acquisition system also includes a first wireless transmission module, and the control system also includes a second wireless transmission module. The method includes: receiving parameter signals collected by the signal acquisition system in the stop, standby start, and standby stop states after the nitrogen test, wherein the parameter signals are obtained by transmitting the first wireless transmission module and the second transmission module; the parameter information includes at least the pressure and temperature of the methanol in the hazardous area; and judging whether to enter the restart mode in the ring network design or the first step of the scavenging process of the system operation according to the parameter signal. It has the characteristics of high fault tolerance and ensures the reliability of the system operation. At the same time, the method based on wireless transmission avoids the potential risks brought by the hazardous area and saves a large amount of signal cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a flow chart of a method for controlling a methanol supply system provided in accordance with an embodiment;

[0033] Figure 2 is a flow chart of another method for controlling a methanol supply system provided according to an embodiment;

[0034] Figure 3 is a structural schematic diagram of a control system of a methanol supply system provided according to an embodiment;

[0035] Figure 4 is a flow chart of another method for controlling a methanol supply system provided according to an embodiment;

[0036] Figure 5 This is a structural block diagram of a control device for a methanol supply system of the present application.

[0037] Figure 6 It is a block diagram of an electronic device of the present application.

[0038] Figure 7 It is a block diagram of a computer-readable storage medium of the present application. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Reference Figure 1 , shows a flow chart of the steps of a control method of a methanol supply system of the present application, which is applied to a methanol supply system, wherein the methanol supply system at least includes a signal acquisition system and a control system, wherein the signal acquisition system further includes a first wireless transmission module, and the control system further includes a second wireless transmission module, wherein the method may specifically include the following steps:

[0041] S101, receiving parameter signals collected by a signal acquisition system in the stop, standby start, and standby stop states after the nitrogen test, wherein the parameter signals are obtained by transmitting through the first wireless transmission module and the second transmission module; the parameter information at least includes the pressure and temperature of methanol in the hazardous area;

[0042] S102: judging whether to enter the restart mode in the ring network design or the purge process of the first step of the system operation according to the parameter signal.

[0043] like Figure 2 The figure shows a flow chart of the methanol supply system. The methanol filling system injects methanol fuel into the methanol fuel storage tank, and the methanol transfer pump injects the fuel into the methanol daily tank. The methanol fuel enters the methanol auxiliary engine and the main engine through the main and auxiliary engine methanol supply systems respectively. The methanol supply system uses a methanol fuel pump to bring methanol raw materials into the system and inject them into the main engine and auxiliary engine of the ship. The embodiment of the present application provides a safe and reliable control system logic, which solves the safety and stability of the operation of the methanol supply system.

[0044] Another embodiment of the present application further supplements the control method of the methanol supply system provided in the above embodiment.

[0045] like Figure 3As shown, the ring network design is adopted, which has the characteristics of safety, stability and fast response. The ring network design enables each process module in the system to execute the next instruction according to the logical judgment of yes or no. In particular, after the purging of the preparatory work and the nitrogen test are completed, the above process can be skipped and the system process of "start-feed-run-stop-standby stop-restart" can be directly carried out. This part can form a ring network design. Security: Because any node in the ring network can carry out the system process through other paths. The data transmission method of the ring network adopts a point-to-point method, and the data will not pass through the central node during the transmission process. Therefore, it has higher security than the existing traditional technical process. If the technical parameters of a node in the ring network have problems such as alarm failure, it will not affect the entire ring network.

[0046] Stability: Since the entire ring network process is interconnected, even if a node fails, other nodes can still remain connected, and the control system can logically determine that there is no bottleneck or conflict in the ring network. It is convenient to manage, and the management method of the ring network is relatively simple. It is convenient to monitor or manage. The security and stability of the system are fully met. The system failure rate is effectively reduced.

[0047] Quick response: After a series of process controls such as purging, nitrogen testing, startup, standby startup, and standby shutdown, the entire system is monitoring technical parameters such as pressure and temperature. If the above technical parameters are within a reasonable range, the system is directly started through the ring network design. This saves time for purging and nitrogen testing, improves the efficiency of the control system, and improves the response speed.

[0048] Wireless transmission function: Through the wireless output module and input module, 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-transmit and dual-receive wireless architecture with a high wireless transmission rate and a reliable transmission distance of more than 1 km. On the basis of wireless transmission, the control system wirelessly receives technical parameters such as pressure and temperature of methanol in the dangerous area in the states of stop, standby start, standby stop, etc. after the nitrogen test. After logical analysis, it is determined whether to enter the restart mode in the ring network design or the first step of the system operation. The purge process. Without this system, these technical parameters need to be connected to the equipment in the control system through hard wires and pass through the dangerous area. This puts higher requirements on the cables for data transmission. The wireless transmission function avoids the system risk problems brought by dangerous areas.

[0049] Optionally, the method further comprises:

[0050] If the parameter signal exceeds the first preset threshold, an alarm is issued.

[0051] Optionally, the method further comprises:

[0052] Under the condition of purging completion, obtain the system parameters and process parameters of all instruments and equipment;

[0053] The system parameter and the process parameter are compared with the preset value and the second preset threshold value, but no instrument equipment is powered on.

[0054] Optionally, the method further comprises:

[0055] Prior to supplying methanol fuel, perform a nitrogen leak test procedure.

[0056] Optionally, the method further comprises:

[0057] At the beginning, the inlet valve is opened, methanol gradually fills the pipeline, and the remaining nitrogen is discharged through the exhaust valve;

[0058] After the exhaust stage is completed, the liquid methanol is filled, the feed pump and the circulation pump start to increase the pressure, and at the same time, the temperature control loop is started. When the temperature and pressure reach the set value and there is no alarm, the startup procedure is completed and a ready signal is provided to the engine control system.

[0059] Optionally, the method further comprises:

[0060] In the feeding procedure, the outlet valve is opened and methanol is supplied at the pressure and temperature required by the host;

[0061] When the outlet pressure reaches stability, switch to the operating state.

[0062] Optionally, the method further comprises:

[0063] In standby stop condition, the system is isolated and filled with methanol;

[0064] During the standby shutdown condition, all instruments monitor the system and its process parameters and compare them to acceptable limits, but the equipment is de-energized;

[0065] In the event that a restart command is received, a restart will be prepared.

[0066] like Figure 4 As shown, 2.1 purging is completed:

[0067] In the purge complete condition, the system is isolated (inlet, outlet, recirculation, drain and exhaust valves closed) and free of methanol. This condition can be achieved at power-up or through the purge procedure. In the purge complete condition, all instruments are monitoring the system and its process parameters and comparing them to acceptable limits, but no equipment is powered. If an abnormal phenomenon occurs, an alarm will be triggered. If no alarm is activated, the system can be started through the startup procedure, the nitrogen leak test procedure can be performed, or the maintenance condition can be entered.

[0068] 2.2N2 Leak Test:

[0069] A nitrogen leak test procedure must be performed before supplying methanol fuel to the module to ensure that no leaks occur. It can only be started if no alarms are activated. The stop state is only reached if the nitrogen leak test is free of any problems.

[0070] 2.3 Stop

[0071] During the STOP condition, the system is isolated and ready for startup. In the STOP condition, all instruments are monitoring the system and its process parameters and comparing them to acceptable limits, but no equipment is powered. This condition can also be achieved with an emergency shutdown so the system can be partially filled with methanol.

[0072] 2.4 Startup

[0073] The startup procedure is used to prepare the system for the injection of methanol into the main engine. 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 module is filled with liquid methanol, the feed pump and the circulation pump start to increase the pressure, and at the same time, the temperature control loop is started. When the temperature and pressure reach the set value and there is no alarm, the startup procedure is completed and a ready signal is provided to the engine control system (ECS).

[0074] 2.5 Standby Start

[0075] In the standby start condition, the system is completely filled with pressurized methanol circulating internally, the pump runs continuously but the outlet valve remains closed. The system waits for an injection command from the operator or the engine control system.

[0076] 2.6 Feeding

[0077] In the feeding procedure, the system opens the outlet valve and supplies methanol at the pressure and temperature required by the host. Once the outlet pressure stabilizes, the system switches to operating conditions.

[0078] 2.7 Run

[0079] In the operating condition, the system continuously supplies the host and will continue to maintain this working state if no alarm is triggered.

[0080] 2.8 Stop

[0081] Under the stop procedure, the system smoothly stops the supply of methanol to the engine, gradually reduces the pressure, stops the pump and isolates the system.

[0082] 2.9 Standby Stop

[0083] In the Standby Shutdown condition, the system is isolated and filled with methanol. During the Standby Shutdown condition, all instruments monitor the system and its process parameters and compare them to acceptable limits, but the equipment is de-energized. Once a restart command is issued from the operator or ECS, the system will be ready to restart.

[0084] 2.10 Restart

[0085] The restart sequence returns the system from standby stop to standby start. The feed pump and circulation pump are energized, the pressure control is activated and reaches the required set point. The glycol-water heating circuit is activated. If the restart sequence is completed without alarms, the system is in standby start. If the methanol fuel supply signal is activated, the system will automatically switch to the feed sequence.

[0086] 2.11 Purge

[0087] The purge procedure isolates the system from methanol and completely vents it. Pressurized nitrogen is injected into the pipeline to evacuate the methanol through the vent pipe. All vent valves are open and the vent pump is running. The presence of liquid is monitored to ensure that the amount of methanol remaining in the module is as small as possible. This procedure is started in an emergency (alarm severity category 0), by a manual command from the operator (only from the stop condition) or by an external alarm signal (from the ECS). At the end of this procedure, the system is in the purge end condition. The purge can only be interrupted by the Abort Purge button when the operator manually started the procedure.

[0088] 2.12 Emergency Stop

[0089] Emergency stop means stopping and isolating the system suddenly. The pump stops and all pneumatic valves enter the fault state. This procedure is triggered by an alarm severity level 1 or an emergency stop button or an emergency signal from the host control system. After the emergency stop procedure is completed, the system will return to the stopped state.

[0090] 2.13 Maintenance

[0091] Maintenance condition means the skid is in maintenance state. When activated (only from the purge complete condition), a pop-up freezes the screen and the system cannot be started. After completion, a nitrogen leak test procedure needs to be performed before restarting.

[0092] The embodiment of the present application breaks through the slow response of the original control method, wastes cables, and cannot avoid the hidden dangers of dangerous areas. It saves cables based on the wireless transmission module technology, and reduces the failure rate due to the ring network design.

[0093] The system architecture of the ring network design of the methanol supply system in the embodiment of the present application fully satisfies the safety and stability of the system, and the system data is wirelessly transmitted to the control system. The system risk problems caused by dangerous areas are avoided. The safety of the system is improved. The methanol supply system adopts a control system architecture of a ring network design, which effectively reduces the system failure rate. The system data is transmitted to the control system by a dual-transmit and dual-receive wireless transmission method, avoiding the system risk problems caused by dangerous areas.

[0094] It should be noted that each implementable method in this embodiment may be implemented separately, or may be implemented in combination in any combination without conflict, and this application is not limited thereto.

[0095] Another embodiment of the present application provides a control system for a methanol supply system, which is used to execute the control method for the methanol supply system provided in the above embodiment.

[0096] like Figure 5 , which is a schematic diagram of the structure of a control system of a methanol supply system provided in an embodiment of the present application. The control system of the 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:

[0097] The receiving module 501 is used to receive parameter signals collected by the signal acquisition system in the stop, standby start and standby stop states after the nitrogen test, wherein the parameter signals are obtained by transmitting through the first wireless transmission module and the second transmission module; the parameter information at least includes the pressure and temperature of methanol in the hazardous area;

[0098] The control module 502 is used to determine whether to enter the restart mode in the ring network design or enter the first step of the system operation purge process according to the parameter signal.

[0099] Regarding the device in this embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0100] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0101] Optionally, an embodiment of the present application further provides an electronic device, comprising: 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, the various processes of the above-mentioned method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0102] The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the above method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0103] Figure 6 800 is a block diagram of an electronic device 800 shown in the present application. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0104] 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 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 .

[0105] The processing component 802 generally controls the overall operation of the electronic device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0106] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phone book data, messages, images, videos, etc. The 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 memory, flash memory, magnetic disk or optical disk.

[0107] The power supply component 806 provides power to the various components of the electronic device 800. The 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 the electronic device 800.

[0108] The 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 touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0109] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the electronic device 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0110] 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 button, volume button, start button, and lock button.

[0111] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the electronic device 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the electronic device 800, and the sensor assembly 814 can also detect the position change of the electronic device 800 or a component of the electronic device 800, the presence or absence of contact between the user and the electronic device 800, the orientation or acceleration / deceleration of the electronic device 800, and the temperature change of the electronic device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0112] The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on a communication standard, such as WiFi, a carrier network (such as 2G, 3G, 4G or 5G), or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast operation information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0113] 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 above methods.

[0114] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by a processor 820 of an electronic device 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0115] Figure 719 is a block diagram of a computer-readable storage medium 1900 shown in the present application. For example, the computer-readable storage medium 1900 may be provided as a server.

[0116] 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 a memory 1932 for storing instructions, such as an application, that can be executed by the processing component 1922. The application stored in the memory 1932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute instructions to perform the above method.

[0117] 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 may operate based on an operating system stored in the memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

[0118] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0119] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0120] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0121] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in the present application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0122] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0123] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0124] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0125] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0126] If the functions are implemented in the form of 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 the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

[0127] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0128] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A method for controlling a methanol supply system, characterized in that: Applied to a methanol supply system, the methanol supply system at least includes a signal acquisition system and a control system, the signal acquisition system also includes a first wireless transmission module, the control system also includes a second wireless transmission module, the method includes: In the stop, standby start, and standby stop states after the nitrogen test, receiving the parameter signal collected by the signal acquisition system, wherein the parameter signal is obtained by transmitting through the first wireless transmission module and the second transmission module; the parameter information at least includes the pressure and temperature of methanol in the hazardous area; According to the parameter signal, it is determined whether to enter the restart mode in the ring network design or the purge process of the first step of the system operation.

2. The control method of the methanol supply system according to claim 1, characterized in that: The method further comprises: If the parameter signal exceeds a first preset threshold, an alarm is issued.

3. The control method of the methanol supply system according to claim 1, characterized in that: The method further comprises: Under the condition of purging completion, obtain the system parameters and process parameters of all instruments and equipment; The system parameter, the process parameter and the preset value are compared with a second preset threshold value, but no instrument equipment is powered on.

4. The control method of the methanol supply system according to claim 1, characterized in that: The method further comprises: Prior to supplying methanol fuel, perform a nitrogen leak test procedure.

5. The control method of the methanol supply system according to claim 1, characterized in that: The method further comprises: 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 stage is completed, the liquid methanol is filled, the feed pump and the circulation pump start to increase the pressure, and at the same time, the temperature control loop is started. When the temperature and pressure reach the set value and there is no alarm, the startup procedure is completed and a ready signal is provided to the engine control system.

6. The control method of the methanol supply system according to claim 1, characterized in that: The method further comprises: In the feeding procedure, the outlet valve is opened and methanol is supplied at the pressure and temperature required by the host; When the outlet pressure reaches stability, switch to the operating state.

7. The control method of the methanol supply system according to claim 6, characterized in that: The method further comprises: In standby stop condition, the system is isolated and filled with methanol; During the standby shutdown condition, all instruments monitor the system and its process parameters and compare them to acceptable limits, but the equipment is de-energized; In the event that a restart command is received, a restart will be prepared.

8. A control system for a methanol supply system, characterized in that: A method for controlling a methanol supply system according to any one of claims 1 to 7, comprising: A receiving module, used for receiving the parameter signal collected by the signal acquisition system in the stop, standby start and standby stop states after the nitrogen test, wherein the parameter signal is obtained by transmitting through the first wireless transmission module and the second transmission module; the parameter information at least includes the pressure and temperature of methanol in the hazardous area; The control module is used to determine whether to enter the restart mode in the ring network design or the purge process of the first step of system operation according to the parameter signal.

9. 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 implements the method according to any one of claims 1 to 7 when executed by the processor.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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