Warning area division method, device and equipment during ship refueling and storage medium

Abstract

The invention relates to a method, device and equipment for dividing warning areas during ship filling and a storage medium, and belongs to the technical field of traffic ships, the method comprises the steps that a ship simulation model during ship filling is established based on ANSYS Fluent, and ship filling comprises filling from a filling ship to a filled ship; carrying out limit analysis on the ship load working condition based on the ship simulation model to obtain the combustible gas distribution condition of the filling ship and the filled ship under the limit condition; and based on the combustible gas distribution condition of the filling ship and the filled ship under the limit condition, dividing a warning area during ship filling. And safe operation of the ship in the aspects of arrangement scheme, operation process, safety protection, safeguard measures and the like is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation ships, and in particular to a method, device, equipment and storage medium for dividing warning areas when a ship is refueling. Background Art

[0002] As ship emission requirements become increasingly stringent and energy conservation and carbon reduction become the mainstream development situation, the use of LNG as ship fuel has gradually been recognized by shipowners. Nearly 30% of global new ship orders in 2021 will use LNG as fuel. It is expected that the demand for LNG refueling of international ocean-going ships will usher in a period of growth, which will promote the development of clean energy application in the shipping industry.

[0003] At present, the global shipping industry mainly uses three methods of LNG fuel refueling: LNG tank truck refueling, shore-based LNG refueling station refueling, and LNG refueling ship refueling. Among them, the construction period of shore-based LNG refueling stations is long and the investment is large, and it is temporarily unable to grow in sync with market demand. LNG refueling ships can effectively supplement the development deficiencies of shore-based LNG refueling stations due to their flexible mobility. In addition, the use of LNG refueling ships for ship-to-ship refueling operations is also more efficient than shore-based ship-to-ship and tank truck-to-ship refueling, especially for large LNG-powered ships with tight port turnover plans and large refueling volumes. LNG refueling ships have the characteristics of flexible mobility and efficient refueling, and are an important means of layout and construction of international LNG refueling ports. They can effectively solve the bottleneck of the development of LNG-powered ships, and ultimately form a development trend of mutual promotion between LNG-powered ships and LNG refueling ships.

[0004] Considering the low-temperature flammable characteristics of LNG, relevant domestic and international standards require that LNG bunkering operations be divided into zones, generally divided into dangerous areas, safe areas (restricted areas) and warning areas. Therefore, how to divide the warning areas during ship bunkering to ensure the safe implementation of ship layout plans, operation processes, safety protection and safeguards is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of this, it is necessary to provide a method, device, equipment and storage medium for dividing warning areas when a ship is refueling, so as to ensure the safety of work in aspects such as ship layout plan, operation process, safety protection and safeguard measures.

[0006] In order to achieve the above-mentioned object, in a first aspect, the present invention provides a method for dividing a warning area when a ship is bunkering, comprising: A ship simulation model for ship bunkering is established based on ANSYS Fluent, where ship bunkering includes bunkering from the bunkering ship to the receiving ship; Based on the ship simulation model, a limit analysis is performed on the ship load condition to obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limit condition; Based on the flammable gas distribution conditions of the bunkering ship and the receiving ship under extreme conditions, the warning areas during ship bunkering are divided.

[0007] In a possible implementation, the establishment of a ship simulation model for ship bunkering based on ANSYS Fluent includes: The fluid dynamics model of the bunkering ship, the receiving ship and the hose connecting the bunkering ship and the receiving ship is established based on ANSYS Fluent In a possible implementation, the ship load condition includes a ship no-load condition and a ship fully-loaded condition.

[0008] In a possible implementation, the limit conditions of the bunkering ship and the receiving ship include leakage of the liquid phase hose, leakage of the gas phase hose, leakage at the flange joint of the bunkering station of the bunkering ship, and leakage at the flange joint of the bunkering station of the receiving ship.

[0009] In a possible implementation, the limiting analysis of the ship load condition based on the ship simulation model to obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limiting condition includes: The limit analysis of the ship's no-load condition was carried out to obtain the first flammable vapor cloud coverage range in the case of liquid phase hose leakage, the second flammable vapor cloud coverage range in the case of gas phase hose leakage, the third flammable vapor cloud coverage range in the case of leakage at the flange joint of the bunkering station of the bunkering ship, and the fourth flammable vapor cloud coverage range in the case of leakage at the flange joint of the bunkering station of the receiving ship; An extreme analysis was carried out on the ship's fully loaded condition, and the fifth flammable steam cloud coverage range in the case of liquid phase hose leakage, the sixth flammable steam cloud coverage range in the case of gas phase hose leakage, the seventh flammable steam cloud coverage range in the case of leakage at the flange joint of the bunkering station of the bunkering ship, and the eighth flammable steam cloud coverage range in the case of leakage at the flange joint of the bunkering station of the receiving ship were obtained.

[0010] In a possible implementation, the division of warning areas during ship bunkering according to the distribution of bunkering ships and receiving ships under extreme conditions includes: According to the coverage of flammable vapor cloud of bunkering ship and receiving ship under extreme conditions, the warning area during ship bunkering is divided.

[0011] In a possible implementation, the division of warning areas during ship bunkering according to the coverage of the flammable vapor cloud of the bunkering ship and the receiving ship under extreme conditions includes: The boundaries of the flammable vapor cloud coverage are set based on preset standards to divide the warning area when the ship is refueling.

[0012] In a second aspect, the present invention further provides a device for dividing a warning area during ship bunkering, comprising: A model building module is used to build a ship simulation model for ship bunkering based on ANSYS Fluent, wherein ship bunkering includes bunkering from the bunkering ship to the receiving ship; A working condition analysis module, used to perform a limit analysis on the ship load working condition based on the ship simulation model, and obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limit conditions; The area division module is used to divide the warning area when the ship is bunkering according to the distribution of flammable gas under extreme conditions of the bunkering ship and the receiving ship.

[0013] In a third aspect, the present invention further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps in the method for dividing a warning area during ship refueling are implemented.

[0014] In a fourth aspect, the present invention further provides a computer storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned method for dividing a warning area during ship refueling are implemented.

[0015] The method for dividing the warning area during ship bunkering based on ANSYS Fluent in the present invention establishes a ship simulation model during ship bunkering through ANSYS Fluent, and performs limit analysis on the ship load condition based on the ship simulation model to obtain the combustible gas distribution of the bunkering ship and the receiving ship under the limit condition, and finally divides the warning area during ship bunkering based on the combustible gas distribution of the bunkering ship and the receiving ship under the limit condition. It can ensure the safety of work in aspects such as ship layout plan, operation process, safety protection and safeguard measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A method flow chart of an embodiment of a method for dividing warning areas during ship bunkering provided by the present invention; FIG2 (a) is a schematic diagram of a fluid mechanics model of a bunkering ship provided by an embodiment of the present invention; FIG2( b ) is a schematic diagram of a fluid mechanics model of a receiving vessel provided in one embodiment of the present invention; FIG2 (c) is a schematic diagram of a fluid mechanics model of a hose connecting a bunkering ship and a receiving ship provided by an embodiment of the present invention; FIG3 (a) is a schematic diagram of a fluid mechanics model in the case of leakage of a liquid phase hose between a bunkering ship and a receiving ship provided by an embodiment of the present invention; FIG3 (b) is a schematic diagram of a fluid mechanics model in the case of leakage of a gas phase hose between a bunkering ship and a receiving ship provided by an embodiment of the present invention; FIG3 (c) is a schematic diagram of a fluid mechanics model in the case of leakage at a flange joint of a bunkering station between a bunkering ship and a receiving ship provided by an embodiment of the present invention; FIG3( d ) is a schematic diagram of a fluid mechanics model in the case of leakage at a flange joint of a bunkering station of a receiving ship between a bunkering ship and a receiving ship provided by an embodiment of the present invention; Figure 4 (a) is a schematic diagram of the flammable vapor cloud coverage of the bunkering ship under no-load conditions in the case of a liquid phase hose leak; Figure 4 (b) is a schematic diagram of the flammable vapor cloud coverage of the bunkering ship under no-load conditions in the case of gas phase hose leakage; FIG4( c ) is a schematic diagram of the flammable vapor cloud coverage of the bunkering ship under no-load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship; Figure 4 (d) is a schematic diagram of the flammable vapor cloud coverage of the bunkering ship under no-load conditions when there is leakage at the flange joint of the bunkering station of the receiving ship; Figure 4 (e) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of a liquid phase hose leak; Figure 4 (f) is a schematic diagram of the flammable vapor cloud coverage of the bunkering ship under no-load conditions in the case of gas phase hose leakage; Figure 4 (g) is a schematic diagram of the flammable vapor cloud coverage of the bunkering ship under no-load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship; Figure 4 (h) is a schematic diagram of the flammable vapor cloud coverage of the bunkering ship under no-load conditions in the case of leakage at the flange joint of the bunkering station of the receiving ship; Figure 5 (a) is a schematic diagram of the coverage of the flammable vapor cloud of the receiving ship under full load conditions in the case of leakage of the liquid phase hose; Figure 5 (b) is a schematic diagram of the flammable vapor cloud coverage of the receiving ship under full load conditions in the case of gas phase hose leakage; Figure 5 (c) is a schematic diagram of the coverage of the flammable vapor cloud of the receiving ship under full load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship; FIG5(d) is a schematic diagram of the coverage of the flammable vapor cloud of the receiving ship under full load conditions in the case of leakage at the flange joint of the bunkering station of the receiving ship; Figure 5 (e) is a schematic diagram of the coverage of the flammable vapor cloud of the receiving ship under full load conditions in the case of leakage of the liquid phase hose; Figure 5 (f) is a schematic diagram of the coverage of the flammable vapor cloud of the receiving ship under full load conditions in the case of gas phase hose leakage; Figure 5 (g) is a schematic diagram of the flammable vapor cloud coverage of the receiving ship under full load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship; Figure 5 (h) is a schematic diagram of the coverage of the flammable vapor cloud of the receiving ship under full load conditions in the case of leakage at the flange joint of the bunkering station of the receiving ship; Figure 6 A schematic diagram of a warning area range provided by an embodiment of the present invention; Figure 7 A schematic structural diagram of an embodiment of a device for dividing a warning area during ship bunkering provided by the present invention; Figure 8 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0019] The descriptions of "first", "second", etc. involved in the embodiments of the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the technical features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0020] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The specific embodiments are described in detail below: See also Figure 1 , Figure 1 The present invention provides a method for dividing warning areas during ship bunkering, comprising: Step 101: establishing a ship simulation model during ship bunkering based on ANSYS Fluent, wherein the ship bunkering includes bunkering from the bunkering ship to the receiving ship; Step 102: Performing a limit analysis on the ship load condition based on the ship simulation model to obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limit condition; Step 103: Based on the distribution of flammable gas of the bunkering ship and the receiving ship under extreme conditions, divide the warning area when the ship is bunkering.

[0022] It should be noted that ANSYS Fluent simulation software is a widely used mature fluid dynamics simulation software for modeling and analyzing fluid flow, heat transfer and mass exchange, and chemical reaction processes. Fluent provides a modern user-friendly interface that simplifies the process from pre-processing to post-processing in a single-window workflow. Fluent is known for its advanced physical models, including turbulence models, single-phase and multiphase flows, combustion, battery models, and fluid-solid coupling. It is also known for its efficient HPC scalability, and large-scale analysis allows Fluent to easily solve on multiple processors on the CPU or GPU.

[0023] The method for dividing the warning area during ship bunkering based on ANSYS Fluent in the present invention establishes a ship simulation model during ship bunkering through ANSYS Fluent, and performs limit analysis on the ship load condition based on the ship simulation model to obtain the combustible gas distribution of the bunkering ship and the receiving ship under the limit condition, and finally divides the warning area during ship bunkering based on the combustible gas distribution of the bunkering ship and the receiving ship under the limit condition. It can ensure the safety of work in aspects such as ship layout plan, operation process, safety protection and safeguard measures.

[0024] In one embodiment of the present invention, a ship simulation model for ship bunkering is established based on ANSYS Fluent, including: The fluid dynamics model of the bunkering ship, the receiving ship and the hose connecting the bunkering ship and the receiving ship is established based on ANSYS Fluent It can be understood that the application scenarios of ships during bunkering mainly include a bunkering ship, a receiving ship and a connecting hose between the two ships. Establishing a ship simulation model during ship bunkering mainly involves constructing a fluid mechanics model for the bunkering ship, the receiving ship and the connecting hose between the two ships, as shown in Figures 2 (a) to 2 (c). Figures 2 (a) to 2 (c) are schematic diagrams of a fluid mechanics model of a bunkering ship, a receiving ship and a connecting hose between the two ships provided in one embodiment of the present invention.

[0025] In one embodiment of the present invention, the ship load condition includes the ship empty condition and the ship full condition; the limit conditions of the bunkering ship and the receiving ship include the leakage of the liquid phase hose, the leakage of the gas phase hose, the leakage of the flange joint of the bunkering station of the bunkering ship, and the leakage of the flange joint of the bunkering station of the receiving ship. Figure 3 (a) to Figure 3 (d) are schematic diagrams of a fluid mechanics model of four limit conditions between a bunkering ship and a receiving ship provided in one embodiment of the present invention.

[0026] In one embodiment of the present invention, a limit analysis is performed on the ship load condition based on the ship simulation model to obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limit condition, including: The limit analysis of the ship's no-load condition was carried out to obtain the first flammable vapor cloud coverage range in the case of liquid phase hose leakage, the second flammable vapor cloud coverage range in the case of gas phase hose leakage, the third flammable vapor cloud coverage range in the case of leakage at the flange joint of the bunkering station of the bunkering ship, and the fourth flammable vapor cloud coverage range in the case of leakage at the flange joint of the bunkering station of the receiving ship; An extreme analysis was carried out on the ship's fully loaded condition, and the fifth flammable steam cloud coverage range in the case of liquid phase hose leakage, the sixth flammable steam cloud coverage range in the case of gas phase hose leakage, the seventh flammable steam cloud coverage range in the case of leakage at the flange joint of the bunkering station of the bunkering ship, and the eighth flammable steam cloud coverage range in the case of leakage at the flange joint of the bunkering station of the receiving ship were obtained.

[0027] It is understandable that by analyzing the extreme conditions of the ship, the maximum range of flammable gas in the event of a gas leak can be determined to further ensure the safety of the ship. Specifically, as shown in Figures 4 and 5, Figure 4 (a) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of a liquid phase hose leak; Figure 4 (b) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of a gas phase hose leak; Figure 4 (c) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of a leak at the flange joint of the bunkering station of the bunkering ship; Figure 4 (d) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of a leak at the flange joint of the bunkering station of the receiving ship. Schematic diagram of the coverage of the flammable vapor cloud; Figure 4 (e) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of leakage at the liquid phase hose; Figure 4 (f) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of leakage at the gas phase hose; Figure 4 (g) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship; Figure 4 (h) is a schematic diagram of the coverage of the flammable vapor cloud of the bunkering ship under no-load conditions in the case of leakage at the flange joint of the bunkering station of the receiving ship. Schematic diagram of the coverage range; Figure 5 (a) is a schematic diagram of the coverage range of the flammable steam cloud of the receiving ship under full load conditions in the case of leakage of the liquid phase hose; Figure 5 (b) is a schematic diagram of the coverage range of the flammable steam cloud of the receiving ship under full load conditions in the case of leakage of the gas phase hose; Figure 5 (c) is a schematic diagram of the coverage range of the flammable steam cloud of the receiving ship under full load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship; Figure 5 (d) is a schematic diagram of the coverage range of the flammable steam cloud of the receiving ship under full load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship Schematic diagram; Figure 5 (e) is a schematic diagram of the flammable steam cloud coverage of the receiving ship under full load conditions in the case of liquid phase hose leakage; Figure 5 (f) is a schematic diagram of the flammable steam cloud coverage of the receiving ship under full load conditions in the case of gas phase hose leakage; Figure 5 (g) is a schematic diagram of the flammable steam cloud coverage of the receiving ship under full load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship; Figure 5 (h) is a schematic diagram of the flammable steam cloud coverage of the receiving ship under full load conditions in the case of leakage at the flange joint of the bunkering station of the bunkering ship; In one embodiment of the present invention, according to the distribution of bunkering ships and receiving ships under extreme conditions, the warning areas during ship bunkering are divided, including: According to the coverage of flammable vapor cloud of bunkering ship and receiving ship under extreme conditions, the warning area during ship bunkering is divided.

[0028] Among them, according to the coverage of the flammable vapor cloud of the bunkering ship and the receiving ship under extreme conditions, the warning areas during ship bunkering are divided, including: The boundaries of the flammable vapor cloud coverage are set based on preset standards to divide the warning area when the ship is refueling.

[0029] It is understandable that the present invention can divide the warning area according to the three-dimensional simulation risk analysis results of FLUENT software. Specifically, according to the geometric model of the bunkering ship, the receiving ship and the hose connecting the two ships, ANSYS Fluent is used to perform quantitative risk assessment on liquid hose leakage, gas hose leakage, leakage at the flange joint of the bunkering station of the bunkering ship, and leakage at the flange joint of the bunkering station of the receiving ship, and then divide the dangerous area according to the three-dimensional simulation risk analysis results of FLUENT software.

[0030] like Figure 6 As shown, Figure 6 A schematic diagram of the range of a warning area is provided for an embodiment of the present invention. Through a preset standard, such as the ISO / TS18683 standard, clear boundaries are set for the diffusion of gas leakage, and the warning area is divided into a first area and a second area. The warning level of the first area is greater than that of the second area, and more caution should be taken in the first area to ensure the safety of the ship.

[0031] In order to better implement the method for dividing the warning area when the ship is refueling in the embodiment of the present invention, based on the method for dividing the warning area when the ship is refueling, correspondingly, Figure 7 As shown, the embodiment of the present invention further provides a device for dividing a warning area when a ship is refueling. The device 700 for dividing a warning area when a ship is refueling includes: A model building module 701 is used to build a ship simulation model when the ship is bunkering based on ANSYS Fluent, wherein the ship bunkering includes bunkering from the bunkering ship to the receiving ship; The working condition analysis module 702 is used to perform a limit analysis on the ship load working condition based on the ship simulation model to obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limit conditions; The area division module 703 is used to divide the warning area during ship bunkering according to the distribution of combustible gas under extreme conditions of the bunkering ship and the receiving ship.

[0032] The device 700 for dividing the warning area during ship refueling provided in the above embodiment can implement the technical solution described in the above embodiment of the method for dividing the warning area during ship refueling. The specific implementation principles of the above modules or units can refer to the corresponding contents in the above embodiment of the method for dividing the warning area during ship refueling, which will not be repeated here.

[0033] like Figure 8 As shown, the present invention also provides an electronic device 800. The electronic device 800 includes a processor 801, a memory 802 and a display 803. Figure 8Only some components of the electronic device 800 are shown, but it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0034] In some embodiments, the processor 801 may be a central processing unit (CPU), a microprocessor or other data processing chip, and is used to run program codes or process data stored in the memory 802, such as the method for dividing warning areas during ship bunkering in the present invention.

[0035] In some embodiments, the processor 801 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 801 may be local or remote. In some embodiments, the processor 801 may be implemented in a cloud platform. In one embodiment, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination thereof.

[0036] In some embodiments, the memory 802 may be an internal storage unit of the electronic device 800, such as a hard disk or memory of the electronic device 800. In other embodiments, the memory 802 may also be an external storage device of the electronic device 800, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the electronic device 800.

[0037] Furthermore, the memory 802 may include both an internal storage unit of the electronic device 800 and an external storage device. The memory 802 is used to store application software installed in the electronic device 800 and various data.

[0038] In some embodiments, the display 803 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, etc. The display 803 is used to display information of the electronic device 800 and to display a visual user interface. The components 801-803 of the electronic device 800 communicate with each other via a system bus.

[0039] In some embodiments, when the processor 801 executes the warning area division program for ship bunkering in the memory 802, the following steps may be implemented: A ship simulation model for ship bunkering is established based on ANSYS Fluent, where ship bunkering includes bunkering from the bunkering ship to the receiving ship; Based on the ship simulation model, the ship load condition is analyzed to obtain the combustible gas distribution under the extreme conditions of the bunkering ship and the receiving ship; According to the distribution of flammable gas under extreme conditions of the bunkering ship and the receiving ship, the warning area during ship bunkering is divided.

[0040] It should be understood that: when the processor 801 executes the ship bunkering warning area division program in the memory 802, in addition to the above functions, other functions can also be implemented. For details, please refer to the description of the corresponding method embodiment above.

[0041] Furthermore, the embodiment of the present invention does not specifically limit the type of the electronic device 800 mentioned, and the electronic device 800 may be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of portable electronic devices include but are not limited to portable electronic devices equipped with IOS, Android, Microsoft or other operating systems. The above-mentioned portable electronic device may also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the present invention, the electronic device 800 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0042] Accordingly, an embodiment of the present application also provides a computer-readable storage medium, which is used to store computer-readable programs or instructions. When the program or instructions are executed by a processor, the steps or functions of the method for dividing the warning area during ship refueling provided in the above-mentioned method embodiments can be implemented.

[0043] Those skilled in the art will appreciate that all or part of the processes of the above-mentioned embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, wherein the computer-readable storage medium is a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for dividing warning areas during ship refueling, characterized in that: include: A ship simulation model for ship bunkering is established based on ANSYS Fluent, where ship bunkering includes bunkering from the bunkering ship to the receiving ship; Based on the ship simulation model, a limit analysis is performed on the ship load condition to obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limit condition; Based on the flammable gas distribution conditions of the bunkering ship and the receiving ship under extreme conditions, the warning areas during ship bunkering are divided.

2. The method for dividing warning areas during ship refueling according to claim 1 is characterized in that: The ship simulation model for ship bunkering based on ANSYS Fluent includes: The fluid dynamics models of the bunkering ship, the receiving ship and the hoses connecting the bunkering ship and the receiving ship are established based on ANSYS Fluent.

3. The method for dividing warning areas during ship refueling according to claim 2 is characterized in that: The ship load condition includes a ship no-load condition and a ship fully-loaded condition.

4. The method for dividing warning areas during ship refueling according to claim 3 is characterized in that: The extreme conditions of the bunkering ship and the receiving ship include leakage of the liquid phase hose, leakage of the gas phase hose, leakage at the flange joint of the bunkering station of the bunkering ship and leakage at the flange joint of the bunkering station of the receiving ship.

5. The method for dividing warning areas during ship refueling according to claim 4 is characterized in that: The limit analysis of the ship load condition based on the ship simulation model is performed to obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limit condition, including: The limit analysis of the ship's no-load condition was carried out to obtain the first flammable vapor cloud coverage range in the case of liquid phase hose leakage, the second flammable vapor cloud coverage range in the case of gas phase hose leakage, the third flammable vapor cloud coverage range in the case of leakage at the flange joint of the bunkering station of the bunkering ship, and the fourth flammable vapor cloud coverage range in the case of leakage at the flange joint of the bunkering station of the receiving ship; An extreme analysis was carried out on the ship's fully loaded condition, and the fifth flammable steam cloud coverage range in the case of liquid phase hose leakage, the sixth flammable steam cloud coverage range in the case of gas phase hose leakage, the seventh flammable steam cloud coverage range in the case of leakage at the flange joint of the bunkering station of the bunkering ship, and the eighth flammable steam cloud coverage range in the case of leakage at the flange joint of the bunkering station of the receiving ship were obtained.

6. The method for dividing warning areas during ship refueling according to claim 5 is characterized in that: The warning areas for ship bunkering are divided according to the distribution of bunkering ships and receiving ships under extreme conditions, including: According to the coverage of flammable vapor cloud of bunkering ship and receiving ship under extreme conditions, the warning area during ship bunkering is divided.

7. The method for dividing warning areas during ship refueling according to claim 6, characterized in that: The warning areas during ship bunkering are divided according to the coverage of the flammable vapor cloud of the bunkering ship and the receiving ship under extreme conditions, including: The boundaries of the flammable vapor cloud coverage are set based on preset standards to divide the warning area when the ship is refueling.

8. A device for dividing warning areas during ship refueling, characterized in that: include: A model building module is used to build a ship simulation model for ship bunkering based on ANSYS Fluent, wherein ship bunkering includes bunkering from the bunkering ship to the receiving ship; A working condition analysis module, used to perform a limit analysis on the ship load working condition based on the ship simulation model, and obtain the combustible gas distribution conditions of the bunkering ship and the receiving ship under the limit conditions; The area division module is used to divide the warning area when the ship is bunkering according to the distribution of flammable gas under extreme conditions of the bunkering ship and the receiving ship.

9. An electronic device, characterized in that: comprising a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the method for dividing the warning area during ship bunkering as described in any one of claims 1 to 7 above.

10. A computer-readable storage medium, characterized in that: Used to store computer-readable programs or instructions, which, when executed by a processor, can implement the steps in the method for dividing the warning area during ship bunkering as described in any one of claims 1 to 7 above.

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