Ship emission gas monitoring devices, methods and equipment for monitoring the sulfur content of ship fuel oil

Abstract

This specification provides a ship emission gas monitoring device, a method and equipment for monitoring the sulfur content of ship fuel oil, and related embodiments. The device includes a mounting module, a gas analysis module, a meteorological information collection module, and a ship identification module mounted on the mounting module. The mounting module includes a fixed platform, a mounting component, and a drive component. The drive component moves the mounting component on the fixed platform. The gas analysis module collects atmospheric samples and determines gas composition information. The meteorological information collection module acquires meteorological environmental information. The ship identification module determines the location of a target ship, enabling the drive component to move the mounting component to the corresponding location. This embodiment can adjust the position of the collected gas, ensuring the accuracy of the gas composition information obtained from gas detection, thereby accurately determining the sulfur content of ship fuel oil and providing a basis for the corresponding ship emission control process.

Description

Technical Field

[0001] The embodiments in this specification relate to the field of ship exhaust gas pollution treatment technology, and in particular to a ship emission gas monitoring device, a method and equipment for monitoring the sulfur content of ship fuel oil. Background Technology

[0002] With increasing environmental awareness and the improvement of relevant laws and regulations, the control of air pollution has become an urgent task. Currently, some measures have been taken to address whether emissions from vehicles and other modes of transportation meet standards, but the pollution from ships, which also use fossil fuels, has received insufficient attention.

[0003] Since ships primarily navigate on waterways, investigating their exhaust pollution is challenging. In particular, the accuracy of monitoring the sulfur content of ship fuel is relatively low, making it impossible to accurately determine the sulfur content of fuel from every vessel currently at sea, thus lacking a basis for effective ship management. Therefore, to effectively control ship exhaust pollution, there is an urgent need for a device that can accurately and effectively monitor ship emissions. Summary of the Invention

[0004] The purpose of the embodiments in this specification is to provide a ship emission gas monitoring device, a method and equipment for monitoring the sulfur content of ship fuel oil, so as to solve the problem of how to accurately and effectively monitor ship emission gases.

[0005] To address the aforementioned technical problems, this specification provides a ship emission gas monitoring device, comprising a mounting module, a gas analysis module, a meteorological information collection module, and a ship identification module mounted on the mounting module. The mounting module includes a fixed platform, a mounting assembly, and a drive assembly. The mounting assembly houses the emission gas analysis module, the meteorological information collection module, and the ship information acquisition module. The drive assembly moves the mounting assembly on the fixed platform. The gas analysis module collects atmospheric samples and determines gas composition information. The meteorological information collection module acquires meteorological environmental information. The ship identification module determines the position of a target ship, enabling the drive assembly to move the mounting assembly to the corresponding position relative to the target ship.

[0006] This specification also proposes a method for monitoring the sulfur content of ship fuel oil, comprising: acquiring environmental sample information detected by a ship emission gas monitoring device; the environmental sample information including meteorological environmental monitoring data, gas concentration monitoring data, and ship activity data; determining ship exhaust component information based on the environmental sample information; the ship exhaust component information including SO2 concentration increment and CO2 concentration increment; determining the gas monitoring concentration corresponding to the monitoring time based on the ship exhaust component information; the gas monitoring concentration including SO2 monitoring concentration and CO2 monitoring concentration; and calculating the sulfur content of ship fuel oil using the SO2 monitoring concentration and CO2 monitoring concentration.

[0007] The embodiments of this specification also propose a device for monitoring the sulfur content of marine fuel oil, which is used to execute computer programs / instructions to implement the above-described method for monitoring the sulfur content of marine fuel oil.

[0008] As can be seen from the technical solutions provided in the embodiments of this specification above, the ship emission gas monitoring device in these embodiments includes a mounting module, wherein the mounting component is used to house modules such as a gas analysis module, a meteorological information collection module, and a ship identification module. A drive component can drive the mounting component to move on a fixed platform. Furthermore, the gas analysis module included in the device is used to collect atmospheric samples and determine gas composition information, while the meteorological information collection module is used to acquire meteorological environmental information. This allows for analysis of the acquired information in subsequent steps to determine the pollution status of ship exhaust and calculate parameters such as sulfur content. Additionally, the ship identification module included in the device can determine the location of the target ship, enabling the mounting component, including the aforementioned modules, to move to the corresponding location based on the target ship's position, ensuring that the collected atmospheric samples correspond to the gas emitted by the ship.

[0009] Furthermore, the method for monitoring the sulfur content of ship fuel in the embodiments of this specification obtains environmental sample information detected by the ship's exhaust gas monitoring device, determines the ship's exhaust component information, and then determines the gas monitoring concentration corresponding to a specific time, thereby enabling the calculation of the sulfur content of ship fuel based on the SO2 and CO2 monitoring concentrations contained therein.

[0010] The above-mentioned device and method can adjust the position of the gas collected by the device to ensure the accuracy of the gas composition information obtained from gas detection, and can analyze the SO2 monitoring concentration to determine the accuracy of the sulfur content of ship fuel oil, thereby providing a basis for the corresponding ship emission problem treatment process. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a structural diagram of a ship emission gas monitoring device according to an embodiment of this specification;

[0013] Figure 2 This is a schematic diagram illustrating one embodiment of this specification for determining the moving position of a ship emission gas monitoring device;

[0014] Figure 3 This is a flowchart illustrating a method for monitoring the sulfur content of marine fuel oil, as described in this specification.

[0015] Figure 4 This is a structural diagram of a marine fuel sulfur content monitoring device according to an embodiment of this specification.

[0016] Explanation of reference numerals in the attached diagram: 1. Fixed platform; 2. Gas analysis module; 3. Meteorological information collection module; 4. Ship identification module; 5. Mounted components; 6. Bridge foundation. Detailed Implementation

[0017] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0018] To address the aforementioned technical problems, this specification introduces an embodiment of a ship emission gas monitoring device. For example... Figure 1 As shown, the ship emission gas monitoring device includes an onboard module, a gas analysis module, a meteorological information collection module, and a ship identification module mounted on the onboard module.

[0019] The mounting module includes application modules such as a gas analysis module, a meteorological collection module, and a ship identification module. Since the ship emission gas monitoring device is primarily used to detect gases emitted by ships, the device needs to be adaptable to different ships passing under bridges at different locations, and each detection device requires a platform for placement.

[0020] To address the aforementioned requirements, the mounting module includes a fixed platform, a mounting component, and a drive component. The fixed platform can be installed on the bridge and is fixed relative to the bridge. To enable the mounting component to move relative to the fixed platform, the fixed platform can be a component in the form of a slide rail, for example.

[0021] The mounting component is used to house modules such as gas analysis modules, meteorological collection modules, and ship identification modules. The shape and size of the mounting component can be adjusted based on the modules to be placed, and there are no restrictions on this.

[0022] The drive component connects the fixed platform and the mounting component, and also drives the mounting component to move relative to the mounting component. Specifically, the drive component may include, for example, a motor or other drive device.

[0023] The gas analysis module is used to collect and analyze atmospheric samples to determine the gas composition information in the atmospheric samples.

[0024] Specifically, the gas analysis module includes a monitoring equipment protection box, a gas concentration monitor placed inside the monitoring equipment protection box, and a sample gas collection controller located outside the monitoring equipment protection box.

[0025] The protective enclosure for the monitoring equipment can be a shell structure. The interior of the protective enclosure is hollow, allowing for the placement and protection of the corresponding instruments and equipment. The shape of the protective enclosure can be customized to meet the specific application requirements and is not limited thereto. Since this device is used for measuring ships, primarily located near waterways, the protective enclosure can overcome the challenges of high humidity, high temperature, and high salinity marine environments, or the challenges of high humidity and high temperature in inland waterway environments.

[0026] The sample gas collection controller is used to collect gas samples from the atmosphere for subsequent analysis of the gas sample composition. Since the collection controller needs to be in contact with the external atmospheric environment, it can be installed outside the monitoring equipment protective enclosure, for example, on the side wall or above the enclosure.

[0027] The sample gas collection controller is connected to the gas concentration monitor, thereby enabling the collected atmospheric samples to be transported to the corresponding gas concentration monitor.

[0028] Preferably, the sample gas collection controller can also perform at least one of dehumidification and desalination treatment on the atmospheric sample. Specifically, a corresponding pipeline can be installed inside the sample gas collection controller to transmit the desalinated and dehumidified atmospheric sample to the gas concentration monitor.

[0029] Gas concentration monitors are used to analyze the concentrations of corresponding components in atmospheric samples. Specifically, the gas concentration monitors include SO2 gas concentration monitors, CO2 gas concentration monitors, and NO gas concentration monitors. X Gas concentration analyzer, targeting SO2, CO2, NO. X The concentration is detected. Accordingly, when the gas analysis module includes multiple gas concentration monitors, the sample gas collection controller can be configured with multiple pipelines to deliver gas to the gas concentration monitors.

[0030] Specifically, NO X The gas concentration analyzer can be a 42i-TL type trace nitrogen oxide (NOx) analyzer, which measures the content of nitrogen oxides in the air using chemiluminescence method. The analytical capability ranges from sub-ppb to 1000ppb, with a measurement range of 0-2000ppb and a precision of 1ppb. The SO2 gas concentration monitor can be a 450i type sulfur dioxide analyzer, with a measurement range of 0-2000ppm and a precision of 1ppb. The CO2 gas concentration monitor can be a 410i type carbon dioxide gas analyzer, with a measurement range of 0-20ppm and a precision of 1ppb.

[0031] The meteorological information collection module is mainly used to acquire meteorological and environmental information. Since environmental factors can influence the monitoring results during the monitoring process, this module can also be used to acquire meteorological and environmental information.

[0032] In some embodiments, the meteorological environmental information includes at least one of the following: wind direction, wind speed, temperature, humidity, and pressure.

[0033] The meteorological information collection module can be fixed above the gas analysis module. Specifically, the meteorological information collection module can be a HY-WDS5 miniature meteorological monitor.

[0034] The ship identification module is used to determine the location of the target ship. Once the location of the target ship is determined, the position of the device can be adjusted to achieve better monitoring results.

[0035] The ship identification module can detect and identify ships by communicating with ships within a certain range.

[0036] In some embodiments, the ship identification module may include an infrared thermal imaging thermometer. The infrared thermal imaging thermometer may also be positioned on the upper part of the device for better monitoring. The infrared thermal imaging thermometer can measure temperature within a certain range and can also locate the ship. Furthermore, the infrared thermal imaging thermometer can measure the emission temperature of the ship's chimney in real time. Specifically, the infrared thermal imaging thermometer can be an RS30-MAG32HT wireless infrared temperature measurement system with a temperature measurement range of 20-500℃ and a ship detection distance range of 0-4400m, thus exhibiting good temperature measurement performance.

[0037] In some implementations, the ship identification module can acquire information about the target ship while determining its location. Specifically, the ship identification module may include a ship information identification device; this device is used to collect ship information about the target ship.

[0038] Ship information can include static information and navigation dynamic information. The static information includes at least one of the following: ship name, call sign, propulsion system information, tonnage, length, beam, and draft. The navigation dynamic information includes at least one of the following: speed, heading, and position. In practical applications, other types of ship information can be set according to requirements.

[0039] Specifically, the ship information identification device is an RS35-VHF marine AIS (Automatic Identification System) receiver, used to collect static information and navigation dynamic information of surrounding ships in real time.

[0040] By acquiring ship information, while monitoring ship exhaust emissions, the monitoring results can be linked to the corresponding ship information, thus providing a basis for investigation when it is necessary to investigate the emission problems of the corresponding ships, which facilitates the management of different ships.

[0041] Based on the components of the aforementioned ship emission gas monitoring device, it is possible to collect and analyze ship emission gases. However, in practical applications, the smoke plumes emitted from the ship's chimney will diffuse after rising to a certain height. If gas samples are collected after diffusion, the concentration of various pollutants in the collected gas samples will inevitably be lower than the actual pollutant concentration in the emitted gas. Therefore, it is necessary to adjust the installation height of the device.

[0042] Because the smoke plume experiences a momentary rise in height when it exits the ship's funnel, and its diffusion is low before it exceeds this momentary rise, deploying devices within this range can ensure the accuracy of the measurement results.

[0043] Specifically, determining the installation height involves first calculating the emission velocity of the smoke plume from the ship's funnel, and then obtaining the funnel diameter, height, and temperature using a ship identification module. The funnel diameter and height can be obtained by receiving static information from the ship, while the funnel temperature can be measured using an infrared thermometer.

[0044] Then, by combining the emission rate, ship chimney diameter, ship chimney temperature, and meteorological information, the instantaneous rise height of the smoke plume in the chimney can be calculated. The specific meteorological information used can be atmospheric pressure and atmospheric temperature. Specifically, this can be achieved using formulas... Calculate the instantaneous lift height, where Δh is the instantaneous lift height, and V s Where d is the emission velocity, d is the diameter of the ship's chimney, u is the wind speed, p is the atmospheric pressure, and T is the emission velocity. s T represents the temperature at the ship's funnel outlet. a This refers to the ambient temperature.

[0045] After calculating the instantaneous lift height, the smoke plume height can be obtained by combining the instantaneous lift height and the chimney height. The smoke plume height can be directly used as the installation height of the device. Preferably, CDF statistical analysis (cumulative probability distribution function analysis) can be performed on the calculated smoke plume height to enable the monitoring equipment to monitor SO2 emissions from ships at 95% of the smoke plume height. Therefore, the sample smoke plume height corresponding to a CDF value of 0.05 is selected as the standard monitoring height within the monitoring area. Furthermore, the ship emission gas monitoring device is installed on both sides of the bridge at a height greater than the standard monitoring height.

[0046] Furthermore, since the crossing points of the bridge vary, at least the gas analysis module needs to be moved within a horizontal distance relative to the bridge. In other words, the length and position of the fixed platform need to be determined based on the distance to be moved.

[0047] To determine the deployment location of the fixed platform, dynamic activity information of vessels can be collected first, including vessel tracks and heading angles. Specifically, the device can be installed on both sides of the bridge, and dynamic activity information of vessels, AIS (Automatic Identification System) data, and corresponding geographical location information can be collected within the area. The collected AIS data can be cleaned to select AIS data of vessels navigating through the bridge's navigation openings.

[0048] Next, the ship tracks can be processed to obtain track clustering results. Specifically, Fre'chet distance can be used to measure the similarity of AIS tracks to obtain a distance matrix. Principal component analysis is then used to decompose and simplify the distance matrix. The number of clusters is determined based on the cumulative contribution rate. Finally, an improved hierarchical clustering algorithm is used to cluster the AIS track data in the bridge area.

[0049] After completing the track clustering, the ship's heading angle and track clustering results are combined to determine the ship's uphill and downhill characteristics when passing under the bridge. These characteristics describe the features of a ship passing under the bridge. Based on these different uphill and downhill characteristics, the corresponding monitoring targets for the monitoring device can be determined.

[0050] The ship track clustering results are refitted to obtain typical motion trajectories; these typical motion trajectories are used to reflect the ship's positional information within a fixed time period before and after passing the bridge. Specifically, the least squares method is used to refit the trajectories of the clustered feature clusters. This allows the determination of geographic information data within a fixed time period before and after the ship passes the bridge, which can be used as a monitoring basis. For example, typical motion trajectories can be acquired, and geographic information data can be extracted for 300 seconds before and after the ship passes the bridge.

[0051] The location of the ship emission monitoring device can be determined by combining the ship's up-and-down movement characteristics and typical motion trajectory when passing under the bridge. Since the ship's up-and-down movement characteristics and typical motion trajectory when passing under the bridge can be used to describe the ship's heading characteristics, the device's location can be determined based on these characteristics.

[0052] In order to reduce the impact of the bridge on the monitored gases, the monitoring device is set up on the opposite side of the ship's direction of travel, since the exhaust gas analysis module is set up to collect ship exhaust samples in the downwind direction relative to the ship, so as to better monitor the pollutants emitted from the stern chimney.

[0053] Based on the above description, since there is a fixed observation point for the ship, such as the ship's 300s travel point, the target moving position of the device can be determined based on the projection of this point on the bridge, that is, the ship's passage point under the bridge.

[0054] Based on the location of this access point and the current position of the device, the adjustment distance for moving the device via the drive module can be determined. Specifically, this can be achieved using the formula... Calculate the adjustment spacing, where Dist AB To adjust the spacing, R is the length of the mounted component, and λ is the length of the mounted component. A , It is the latitude and longitude of the passage point, λ B , It is the latitude and longitude of the current location of the mounted component.

[0055] To illustrate this, let's use a concrete example, such as... Figure 2 As shown, point B is the current position of the device, AC is the ship's track, and point C is the position the ship will reach 300 seconds after passing the bridge. Accordingly, the device should move to point A to sample the gas. The distance between A and B is the distance the device needs to move. This distance can be calculated using the formula above. After the calculation is completed, the corresponding control command is sent to the drive component so that the drive component can move the device to point A.

[0056] The adjustment spacing calculated above can be used to control the drive component to move the mounted component, thereby enabling effective monitoring of ship emissions.

[0057] Based on the above embodiments, it can be seen that the ship emission gas monitoring device includes a mounting module, in which a mounting component is used to house modules such as a gas analysis module, a meteorological information collection module, and a ship identification module. A drive component can drive the mounting component to move on a fixed platform. Furthermore, the gas analysis module included in the device is used to collect atmospheric samples and determine gas composition information, while the meteorological information collection module is used to acquire meteorological environmental information. This allows for analysis of the acquired information in subsequent steps to determine the pollution status of ship exhaust and calculate parameters such as sulfur content. Additionally, the ship identification module can determine the location of the target ship, enabling the mounting component, including the aforementioned modules, to move to the corresponding position based on the target ship's location, ensuring that the collected atmospheric samples correspond to the gas emitted by the ship. This device allows for adjustment of the gas collection position, ensuring the accuracy of the gas composition information obtained from gas detection, which is beneficial for the analysis and utilization of the acquired data in subsequent steps.

[0058] Based on the aforementioned ship emission gas monitoring device, this specification also proposes a method for monitoring the sulfur content of ship fuel oil. The execution entity of the ship fuel oil sulfur content monitoring method can be a computing module directly installed within the ship emission gas monitoring device, such as an MCU; or it can be a cloud server, cluster, distributed computing device, etc., which performs corresponding data processing and calculation processes after acquiring the data transmitted by the ship emission gas monitoring device. Figure 3 As shown, the method for monitoring the sulfur content of ship fuel oil includes the following specific implementation steps.

[0059] S310: Acquire environmental sample information detected by the ship emission gas monitoring device; the environmental sample information includes meteorological environmental monitoring data, gas concentration monitoring data and ship activity data.

[0060] The environmental sample information refers to the information detected by the ship's emission gas monitoring device. The description of the ship's emission gas monitoring device can be found in the above embodiments and will not be repeated here.

[0061] The environmental sample information may include meteorological environmental monitoring data, gas concentration monitoring data, and ship activity data. The meteorological environmental monitoring data, gas concentration monitoring data, and ship activity data may be data acquired by the meteorological information collection module, gas analysis module, and ship identification module within the device, respectively. For a description of the above data and modules, please refer to [link to relevant documentation]. Figure 1 The descriptions in the corresponding embodiments will not be repeated here.

[0062] S320: Determine the ship exhaust component information based on the environmental sample information; the ship exhaust component information includes SO2 concentration increment and CO2 concentration increment.

[0063] Environmental sample information can be obtained through multiple samplings within a time period. For example, after determining the optimal monitoring position of the ship emission gas monitoring device, the position is fed back to the drive component, which drives the device to adjust to the optimal monitoring position and start collecting gas concentration. Basic data information is collected at regular intervals, specifically, the corresponding basic data information can be collected at the top of the hour.

[0064] Because the data frequencies of different types of monitoring data are inconsistent, to ensure the accuracy of the method, interpolation processing can be performed on the meteorological environmental monitoring data, gas concentration monitoring data, and ship activity data in the environmental sample information. Specifically, cubic spline interpolation can be used to interpolate the meteorological environmental monitoring data, gas concentration monitoring data, and ship activity data at a frequency of one record per second, so that the time windows of various monitoring data are aligned.

[0065] Based on the interpolated gas concentration monitoring data, the monitoring time range of the increase in the monitoring concentration of air pollutants caused by ship emissions can be determined; the monitoring time range is the peak time range of the increase in the monitoring concentration caused by ship emissions.

[0066] In cases where the collected gas concentrations also include nitrogen oxide concentrations, the Lepage abrupt change value detection method can be used based on time-series air pollutant concentration monitoring data. This method relies on monitoring NO... X The changes in the statistical characteristics of concentrations were used to determine the peak time range of the monitoring concentration increments caused by ship emissions, and the time range of the abrupt change value was regarded as the monitoring concentration time range affected by ship emissions.

[0067] Furthermore, to determine the increase in SO2 and CO2 concentrations due to regional ship emissions, it is necessary to remove the regional background concentration values. This involves extracting the gas concentration monitoring data obtained in the previous steps for the time interval significantly affected by ship emissions, and averaging the other concentration monitoring data retained within the hour. This average value represents the background concentration values ​​of SO2 and CO2 within the hour. By removing the background concentration values ​​of SO2 and CO2, the concentrations of SO2 and CO2 in the gas emitted by ships can be determined, enabling more effective analysis and calculation in subsequent steps.

[0068] S330: Determine the gas monitoring concentration corresponding to the monitoring time based on the ship exhaust component information; the gas monitoring concentration includes SO2 monitoring concentration and CO2 monitoring concentration.

[0069] After calculating the ship exhaust composition information, namely the concentrations of SO2 and CO2 in the ship exhaust, in step S320, since this concentration mainly reflects the incremental changes of gas components, it is also necessary to determine the concentration of gas components emitted at each time.

[0070] Specifically, formulas can be used. Calculate the SO2 monitoring concentration, where, For monitoring SO2 concentration, For ship n in t i SO2 concentration at any given time in, For ship n in t i The sum of SO2 emission monitoring concentrations at each moment, For ship n in t i Distance from the monitoring station at any time Q is the angle formed by the wind direction and the line connecting the ship and the monitoring station. n This refers to the power of the ship's main engine.

[0071] Accordingly, using the formula Calculate the CO2 monitoring concentration, where, For monitoring CO2 concentration, For ship n in t i CO2 concentration values ​​at any given time. in, For ship n in t i The sum of CO2 emission monitoring concentrations at any given time.

[0072] S340: Calculate the sulfur content of ship fuel oil using the SO2 and CO2 monitoring concentrations.

[0073] By calculating the SO2 and CO2 concentrations using the steps described above, the sulfur content of ship fuel can be calculated. Specifically, the sulfur content of the fuel can be estimated using the ratio of the calculated SO2 to CO2 concentrations. This can be achieved using the formula... Calculate the sulfur content of marine fuel oil using the formula, where SFC n This refers to the sulfur content of marine fuel oil.

[0074] Based on the above embodiments, the method for monitoring the sulfur content of ship fuel oil obtains environmental sample information detected by the ship's emission gas monitoring device, determines the ship's exhaust component information, and then determines the gas monitoring concentration corresponding to a specific time. This allows for the calculation of the sulfur content of the ship's fuel oil based on the SO2 and CO2 monitoring concentrations contained therein. This method can analyze SO2 monitoring concentrations to accurately determine the sulfur content of ship fuel oil, thereby providing a basis for the corresponding ship emission control process.

[0075] based on Figure 3 This specification describes a method for monitoring the sulfur content of marine fuel oil, specifically an embodiment of a device for monitoring the sulfur content of marine fuel oil. Figure 4 As shown, the ship fuel sulfur content monitoring device includes the following modules.

[0076] The environmental sample information acquisition module 410 is used to acquire environmental sample information detected by the ship emission gas monitoring device; the environmental sample information includes meteorological environmental monitoring data, gas concentration monitoring data and ship activity data.

[0077] The ship exhaust component information determination module 420 is used to determine ship exhaust component information based on the environmental sample information; the ship exhaust component information includes SO2 concentration increment and CO2 concentration increment.

[0078] The gas monitoring concentration determination module 430 is used to determine the gas monitoring concentration corresponding to the monitoring time based on the ship exhaust component information; the gas monitoring concentration includes SO2 monitoring concentration and CO2 monitoring concentration;

[0079] The marine fuel sulfur content calculation module 440 is used to calculate the marine fuel sulfur content based on the SO2 monitoring concentration and CO2 monitoring concentration.

[0080] based on Figure 3 The corresponding method for monitoring the sulfur content of marine fuel oil, as described in this specification, includes a device for monitoring the sulfur content of marine fuel oil. The device may include a memory and a processor.

[0081] In this embodiment, the memory can be implemented in any suitable manner. For example, the memory can be a read-only memory, a hard disk drive, a solid-state drive, or a USB flash drive, etc. The memory can be used to store computer program instructions.

[0082] In this embodiment, the processor can be implemented in any suitable manner. For example, the processor can take the form of a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro)processor, logic gates, switches, application-specific integrated circuits (ASICs), programmable logic controllers, and embedded microcontrollers, etc. The processor can execute the computer program instructions to implement, for example, Figure 3 The steps of the corresponding method for monitoring the sulfur content of marine fuel oil.

[0083] The aforementioned ship emission gas monitoring device, ship fuel sulfur content monitoring method and equipment can be applied to the field of ship exhaust gas pollution treatment technology, or can be applied to other fields based on this solution, without any restrictions.

[0084] Although the process described above includes multiple operations that occur in a specific order, it should be clearly understood that these processes may include more or fewer operations, which may be executed sequentially or in parallel (e.g., using parallel processors or a multithreaded environment).

[0085] Although the process described above includes multiple operations that occur in a specific order, it should be clearly understood that these processes may include more or fewer operations, which may be executed sequentially or in parallel (e.g., using parallel processors or a multithreaded environment).

[0086] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this specification. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0087] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0088] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0089] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0090] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0091] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0092] Those skilled in the art will understand that the embodiments of this specification can be provided as methods, systems, or computer program products. Therefore, the embodiments of this specification can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, the embodiments of this specification can take the form of computer program products implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0093] The embodiments described in this specification can be described in the general context of computer-executable instructions, such as program modules, that are executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform a specific task or implement a specific abstract data type. The embodiments of this specification can also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0094] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, system embodiments are basically similar to method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments in this specification. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0095] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A ship emission gas monitoring device, characterized in that, It includes an onboard module, a gas analysis module, a meteorological information collection module, and a ship identification module mounted on the onboard module; The mounting module includes a fixed platform, a mounting component, and a drive component; the mounting component is used to house the gas analysis module, the meteorological information collection module, and the ship information acquisition module; the drive component is used to drive the mounting component to move on the fixed platform. The gas analysis module is used to collect atmospheric samples and determine gas composition information; The meteorological information collection module is used to acquire meteorological and environmental information; The ship identification module is used to determine the position of the target ship, so that the drive component can move the mounted component to the corresponding position based on the position of the target ship. The position of the mounting component is adjusted in the following way: Determine the passage point for ships under the bridge; The adjustment spacing is determined based on the location of the access point and the current position of the mounted component; this includes using the formula Calculate the adjustment spacing, where, To adjust the spacing, R is the length of the mounted component. It is the latitude and longitude of the passage point. It is the latitude and longitude of the current location of the mounted component; The adjustable spacing control drive component drives the mounted component to move.

2. The apparatus as claimed in claim 1, characterized in that, The gas analysis module includes a monitoring equipment protection box, a gas concentration monitor placed inside the monitoring equipment protection box, and a sample gas collection controller located outside the monitoring equipment protection box; The sample gas collection controller is used to collect atmospheric samples and transport the atmospheric samples to a gas concentration monitor; The gas concentration monitor is used to analyze the gas concentrations of different components in an atmospheric sample; the gas concentration monitor includes... Gas concentration monitor Gas concentration monitor Gas concentration analyzer.

3. The apparatus as described in claim 2, characterized in that, The sample gas collection controller is also used to perform at least one of dehumidification and desalination treatments on atmospheric samples.

4. The apparatus as claimed in claim 1, characterized in that, The ship emission gas monitoring device is installed on both sides of the bridge, and the installation height is determined by the following method: Calculate the emission velocity of the smoke plume from the ship's funnel. The ship identification module acquires the ship's chimney diameter, chimney height, and chimney temperature; the ship identification module includes an infrared thermal imaging thermometer. Based on the emission rate, ship chimney diameter, ship chimney temperature, and meteorological information, the instantaneous rise height of the smoke plume in the chimney is calculated; the meteorological information includes at least one of the following: wind direction, wind speed, temperature, humidity, and pressure. The height of the smoke plume is obtained by summing the instantaneous rise height and the chimney height. CDF statistical analysis was conducted based on the height of the smoke plume to determine the installation height of the ship's emission gas monitoring device.

5. The apparatus as described in claim 4, characterized in that, The instantaneous rise height of the smoke plume in the chimney is calculated by combining the emission velocity, ship chimney diameter, ship chimney temperature, and meteorological information. include: Using formula Calculate the instantaneous lift height, where, To instantly increase height, For emission speed, The diameter of the ship's chimney opening. For wind speed, This refers to atmospheric pressure. The temperature at the ship's funnel opening. This refers to the ambient temperature.

6. The apparatus as claimed in claim 1, characterized in that, The gas analysis module is used to collect ship exhaust samples in the downwind direction relative to the ship.

7. The apparatus as claimed in claim 1, characterized in that, The location of the ship emission monitoring device on the bridge is determined by the following method: Collect ship dynamic activity information; the ship dynamic activity information includes the ship's track and bow angle; The ship tracks are processed to obtain track clustering results; The characteristics of ships crossing the bridge in both directions are determined by combining the bow angle and the ship track clustering results. The ship track clustering results are refitted to obtain typical motion trajectories; these typical motion trajectories are used to reflect the positional information of ships within a fixed time period before and after passing the bridge. The deployment locations of ship emission monitoring devices were determined based on the ship's characteristics of going up and down the bridge and its typical motion trajectory.

8. The apparatus as claimed in claim 1, characterized in that, The ship identification module also includes a ship information identification device; the ship information identification device is used to collect ship information of the target ship; the ship information includes static information and navigation dynamic information; the static information includes at least one of the following: ship name, ship call sign, ship power equipment information, ship tonnage, ship length, ship beam, and draft; the navigation dynamic information includes at least one of the following: speed, course, and ship position.

9. A method for monitoring the sulfur content of ship fuel oil using the ship emission gas monitoring device according to any one of claims 1-8, characterized in that, include: Acquire environmental sample information detected by the ship's emission gas monitoring device; the environmental sample information includes meteorological environmental monitoring data, gas concentration monitoring data, and ship activity data; Based on the environmental sample information, ship exhaust component information is determined; the ship exhaust component information includes... Concentration increment and Concentration increment; The gas monitoring concentration corresponding to the monitoring time is determined based on the ship exhaust component information; the gas monitoring concentration includes... Monitoring concentration and Monitor concentration; Through the above Monitoring concentration and The concentration is monitored to calculate the sulfur content of ship fuel oil.

10. The method as described in claim 9, characterized in that, The environmental sample information includes information collected sequentially based on preset time intervals; the determination of ship exhaust component information based on the environmental sample information includes: Cubic spline interpolation was performed on the meteorological environment monitoring data, gas concentration monitoring data, and ship activity data. For the interpolated data, a monitoring time range is determined; the monitoring time range is the peak time range of the monitoring concentration increase caused by ship emissions. Based on the monitoring time range The concentration changes were analyzed to determine the monitoring time range; this included determining the concentration using the Lepage mutation value detection method. Concentration changes; For environmental sample data within the monitored concentration time range, background concentration values ​​are removed to obtain information on ship exhaust components.

11. The method as described in claim 9, characterized in that, The step of determining the gas monitoring concentration corresponding to the monitoring time based on the ship exhaust component information includes: Using formula calculate Monitoring concentration, where, for Monitor concentration, For ships n exist Moment Monitor concentration values, ,in, For ships n exist Distance from the monitoring station at any time The angle formed by the wind direction and the line connecting the ship and the monitoring station. For the ship's main engine power; Using formula calculate Monitoring concentration, where, for Monitor concentration, For ships n exist Moment Monitor concentration values, ; The via the Monitoring concentration and Calculating the sulfur content of ship fuel oil by monitoring concentration includes: Using formula To calculate the sulfur content of marine fuel oil, the formula is as follows: This refers to the sulfur content of marine fuel oil.

12. A device for monitoring the sulfur content of marine fuel oil, characterized in that, The device is used to execute computer programs / instructions to implement the method as described in any one of claims 9-11.

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