CN113799944A - Marine fuel monitoring system - Google Patents
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- CN113799944A CN113799944A CN202110928482.7A CN202110928482A CN113799944A CN 113799944 A CN113799944 A CN 113799944A CN 202110928482 A CN202110928482 A CN 202110928482A CN 113799944 A CN113799944 A CN 113799944A
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 44
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 239000000446 fuel Substances 0.000 claims abstract description 73
- 238000012545 processing Methods 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 21
- 230000002159 abnormal effect Effects 0.000 claims abstract description 17
- 238000013500 data storage Methods 0.000 claims abstract description 7
- 239000010762 marine fuel oil Substances 0.000 claims abstract 8
- 239000003921 oil Substances 0.000 claims description 54
- 239000002828 fuel tank Substances 0.000 claims description 30
- 238000007726 management method Methods 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000012937 correction Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims 1
- 238000004062 sedimentation Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/30—Monitoring properties or operating parameters of vessels in operation for diagnosing, testing or predicting the integrity or performance of vessels
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Abstract
本发明公开了一种船用燃油监测系统，属于船舶监测技术领域，该系统包括船端系统，船端系统包括数据采集单元和中央处理单元，数据采集单元包括集控室采集单元和机舱采集单元，集控室采集单元与船舶运行监测系统连接，用于采集船舶运行数据，机舱采集单元用于采集船舶设备油耗数据，中央处理单元与数据采集单元连接，用于接收船舶运行数据和船舶设备油耗数据，并进行数据处理、数据存储和数据通信。本发明对船舶油耗数据实时采集，并自动统计油耗数据；能够自动计算舱内燃油存量，准确可靠；能够对船舶设备燃油消耗异常、燃油存量异常等异常状态进行报警；为优化各船舶设备使用状态和航行方案提供数据支撑和建议。
The invention discloses a marine fuel oil monitoring system, belonging to the technical field of marine monitoring. The system includes a ship-end system, the ship-end system includes a data acquisition unit and a central processing unit, and the data acquisition unit includes a centralized control room acquisition unit and an engine room acquisition unit. The control room acquisition unit is connected with the ship operation monitoring system to collect the ship operation data, the engine room acquisition unit is used to collect the fuel consumption data of the ship equipment, and the central processing unit is connected with the data acquisition unit to receive the ship operation data and the fuel consumption data of the ship equipment, and For data processing, data storage and data communication. The invention collects the fuel consumption data of ships in real time, and automatically counts the fuel consumption data; it can automatically calculate the fuel oil storage in the tank, which is accurate and reliable; it can give an alarm to abnormal states such as abnormal fuel consumption and abnormal fuel storage of ship equipment; in order to optimize the use state of each ship equipment and navigation plan to provide data support and advice.
Description
Technical Field
The invention belongs to the technical field of ship monitoring, and particularly relates to a ship fuel monitoring system.
Background
Along with the development of the ship transportation industry in China, the requirement on automatic control of ships is higher and higher, the requirement on ship fuel monitoring is more and more complex, and as the ship fuel consumption is one of the most main costs of shipping enterprises, particularly the price of the crude oil market in the world rises in recent years, the shipowner and the renter pay more attention to the fuel cost. Due to management needs, ships need to report the oil storage amount and the oil consumption amount to a shipping company regularly, but due to human factors, settlement can be performed by means of few or no measurement, or deliberate reports can be made more or less. The oil consumption of the ship is also manually determined according to the height of the liquid level in the cabin cabinet, the oil filling amount of the ship is mostly calculated manually according to a cabin capacity meter, the real-time performance of data cannot be guaranteed, and the accuracy of the data cannot be guaranteed.
Disclosure of Invention
The technical problem is as follows: aiming at the problems in the prior art, the technical problem to be solved by the invention is that the fuel monitoring system for the ship can monitor the oil storage quantity and the oil consumption quantity of the ship.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a marine fuel monitoring system, includes ship end system, ship end system includes data acquisition unit and central processing unit, the data acquisition unit includes centralized control room acquisition unit and cabin acquisition unit, centralized control room acquisition unit is connected with boats and ships operation monitoring system for gather boats and ships operation data, cabin acquisition unit is used for gathering boats and ships equipment oil consumption data, central processing unit with the data acquisition unit is connected, is used for receiving boats and ships operation data and boats and ships equipment oil consumption data to data processing, data storage and data communication.
Preferably, the cabin acquisition unit includes a plurality of mass flow meter, boats and ships equipment oil consumption data include that host computer oil consumes, generator oil consumes and the boiler oil consumption, and is a plurality of the flowmeter is installed respectively on host computer, generator and boiler.
Preferably, the data acquisition unit further comprises a ship oil injection acquisition unit, and the ship oil injection acquisition unit comprises a plurality of mass flow meters arranged at ship oil injection ports.
Preferably, the ship operation data includes:
fuel tank liquid level, temperature data;
liquid level and temperature data of the fuel oil precipitation cabinet and the daily cabinet;
pump and valve operating data in the fuel system;
the power and rotation speed and running state data of the host and the generator;
boiler operating condition data.
Preferably, the central processing unit calculates the volume of the fuel in the fuel tank according to the liquid level and temperature data of the fuel tank in combination with a fuel tank capacity table, and then calculates the mass of the fuel in the fuel tank;
calculating the volume of fuel in the fuel tank, and fitting by using a polynomial according to a fuel tank capacity table to obtain a formula between the liquid level h and the volume V of the fuel tank:
Vt＝w0+w1h+w2h2+w3h3+……+wMhM
in the formula, VtIs the volume of fuel at t ℃; h is the fuel tank liquid level height; w is a fitting coefficient and is determined by a least square method according to a fuel tank capacity table; m is the fitting order;
the calculation formula for calculating the fuel quality of the fuel tank is as follows:
M＝Vt×VCF15×(ρ15-0.0011)
wherein M is the fuel mass, VtVolume of fuel at t deg.C, p15Is the standard density of the oil product at 15 ℃, 0.0011 is the weight correction factor, VCF15Volume correction factor for standard temperature 15 ℃ was calculated by the following formula:
VCF15＝e-αΔt(1+0.8αΔt)
where Δ t ═ t-15, the difference between the measured temperature t and 15 ℃, and e is the base of the natural logarithm, where α is calculated using the following formula:
α＝k0/ρ15 2+k1/ρ15+A
in the formula, ρ15Is the standard density, k, of the oil at 15 DEG C0、k1And A is an empirical value.
Preferably, the central processing unit is further connected to a ship navigation data system, and is configured to receive ship navigation data, where the ship navigation data includes: the system comprises a ship navigation speed data, ship four-side draft data and wind speed and wind direction data, wherein the central processing unit comprises a fuel oil abnormal state alarm module and is used for alarming fuel oil storage abnormity and fuel consumption abnormity, and the fuel consumption abnormity is as follows:
change value of total stock of all fuel oil cabins-ship theoretical consumption > alarm set value
In the formula, the total stock change value of all fuel tanks is as follows: acquiring stock change data of the fuel oil precipitation cabinet and the daily cabinet through a ship operation monitoring system;
theoretical consumption of the ship: the ship equipment oil consumption data and the ship navigation data collected by the central processing unit are combined with the load-oil consumption curves of the bench test and the navigation test to obtain the theoretical consumption of the ship under various sea conditions.
Preferably, the central processing unit comprises a display unit for displaying the ship operation data, the ship equipment oil consumption data, the ship navigation data and the fuel abnormal state alarm.
Preferably, the ship-side system further comprises an intelligent gateway unit and a ship-borne satellite communication terminal, and the central processing unit is connected with the ship-borne satellite communication terminal through an intelligent gateway.
Preferably, the system further comprises a shore end management system connected with the ship end system, the shore end management system comprises a cloud platform server and a client management terminal, the ship-borne satellite communication terminal is connected with the cloud platform server through the internet, 4G and 5G, VSAT, and the client management terminal comprises a mobile terminal and a comprehensive monitoring management terminal.
Has the advantages that: compared with the prior art, the invention has the following advantages: 1. the central processing unit and the data acquisition unit are arranged, so that ship oil consumption data can be acquired in real time by combining ship navigation data and ship operation data, and the oil consumption data is automatically counted to form a consumption statistical report, which is favorable for inspection and analysis of a ship end; 2. the fuel storage in the cabin can be automatically calculated, the fuel storage quality can be directly obtained, and the method is accurate and reliable; 3. the alarm can be given to abnormal states such as abnormal fuel consumption and abnormal fuel storage of ship equipment; 4. the ship fuel oil using state analysis system is connected with the shore end in multiple modes, so that the fuel oil storage and consumption of a plurality of ships can be mastered and managed conveniently by the shore end, the ship fuel oil using state can be analyzed according to different ship fuel oil data, navigation data and operation data, and data support and suggestions are provided for optimizing the using state and navigation schemes of each ship device.
Drawings
FIG. 1 is a block diagram of the system architecture of the present invention;
FIG. 2 is a block diagram of the connection between the CPU and the data acquisition unit;
FIG. 3 is a fuel tank capacity table in an embodiment of the present invention
FIG. 4 is a graph of a fit of the cabin capacity table of FIG. 3;
FIG. 5 is a graph of empirical values for the parameters K0, K1 and A in the standard ISO-91/1.
Detailed Description
The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, a marine fuel monitoring system comprises a ship-end system and a shore-end management system, wherein the ship-end system is arranged on each ship needing fuel monitoring, the ship-end system comprises a data acquisition unit, a central processing unit intelligent gateway unit and a shipborne satellite communication terminal, the data acquisition unit comprises a centralized control room acquisition unit and an engine room acquisition unit, the centralized control room acquisition unit is connected with a ship operation monitoring system in a ship-owned system, used for collecting ship operation data, an engine room collecting unit used for collecting oil consumption data of ship equipment, a central processing unit connected with the data collecting unit, the central processing unit is used for receiving ship operation data and ship equipment oil consumption data, can be provided with a data processing module, a data storage module and a data communication module and performs corresponding data processing, data storage and data communication, and is connected with the shipborne satellite communication terminal through an intelligent gateway. Shore end management system includes cloud platform server and customer management terminal, shipborne satellite communication terminal in the ship end system passes through VSAT maritime satellite communication connection cloud platform server, can communicate data in the ship end system with shore end management system, shipborne satellite communication terminal sends the data transmission after central processing unit handles to cloud platform server, make things convenient for shore end management, customer management terminal includes mobile terminal and comprehensive monitoring management terminal, make things convenient for shore end user to manage at computer end Web browser and cell-phone mobile terminal APP.
The intelligent gateway can ensure the safety of data transmission, support the breakpoint continuous transmission function and ensure that data is not lost when the ship-shore communication is interrupted.
The cloud platform server adopts an Ali cloud server, and is large in capacity, high in safety, stable and reliable in operation. Along with the accumulation of system data volume, big data acquisition and analysis can be realized, and help is provided for ship cost fine management, voyage/course economy analysis, ship energy efficiency management and safe anti-pollution management.
As shown in figure 2, the central processing unit adopts Siemens S7-1200 series CPU, can expand various kinds of collection modules according to different ship type data acquisition demands, and is provided with two power supplies by a ship cab AC220V distribution box and a DC24V distribution box, and the central processing unit CB1 is provided with an uninterrupted power supply UPS, so that the normal operation of the whole system in a power-off state for not less than 30 minutes can be ensured, and the system gives out sound and light alarm when the power supply fails. The central processing unit CB1 is connected with the communication system in the ship navigation data system through the shielded twisted pair, and is connected in a serial port communication mode for receiving ship navigation data, and the ship navigation data comprises: the ship navigation speed data, the ship four-side draft data and the wind speed and direction data are connected with a ship-borne satellite communication terminal through network cables to transmit data, and the central processing unit CB1 is respectively connected with the centralized control room acquisition unit SAU1, the engine room acquisition unit SAU2 and the ship oiling acquisition unit SAU3 through the network cables and a DC24V power line and is used for acquiring the data acquired by the central processing unit CB and the engine room acquisition unit SAU 2.
The centralized control room acquisition unit SAU1 is connected with a ship operation monitoring system (AMS) through a network cable, and is connected in the modes of RS485, Modbus RTU, TCP/IP and the like, so that the acquisition of the ship operation data comprises the following steps: fuel tank liquid level, temperature data; liquid level and temperature data of the fuel oil precipitation cabinet and the daily cabinet; pump and valve operating data in the fuel system; the power and rotation speed and running state data of the host and the generator; boiler operating condition data.
The cabin acquisition unit SAU2 comprises a plurality of mass flow meters, which are respectively arranged on an oil inlet pipeline and an oil return pipeline of the main machine, the oil inlet pipeline and the oil return pipeline of the three generators and the oil inlet pipeline and the oil return pipeline of the boiler and are connected with a DC24V power line through a shielded twisted pair, so that the oil consumption of the main machine, the oil consumption of the generators and the oil consumption of the boiler are acquired to form the oil consumption data of the ship equipment.
The marine oil filling acquisition unit SAU3 comprises a mass flow meter arranged at a port for injecting light diesel oil and heavy oil on the port and the starboard of a marine vessel and is used for acquiring the oil filling amount and the oil refuting amount of the marine vessel.
The central processing unit comprises a display unit for displaying ship operation data, ship equipment oil consumption data, ship navigation data and fuel oil abnormal state alarm, and a human-machine interface HMI (human machine interface) on a panel of the central processing unit CB1 can display:
1) the current fuel stock condition of each oil tank of the ship is as follows: the method comprises the steps of displaying the liquid level, the fuel temperature and the fuel volume of a fuel tank;
2) the opening and closing and running states of a fuel oil delivery system and a daily system pump and a valve;
3) real-time oil consumption and accumulated oil consumption of oil consumption equipment such as a host, a generator, a boiler and the like;
4) displaying the rotating speed of the main machine and the generator and the running state of the boiler;
5) displaying navigation data such as ship speed, four-side draught, wind speed and wind direction and the like;
6) the data storage and historical data query;
7) and the fuel abnormal state alarm comprises fuel storage abnormity, abnormal fuel consumption of a host and a generator and the like.
The central processing unit CB1 connects the data of gathering through intelligent gateway and shipborne satellite communication terminal, passes to the cloud platform server of bank end with data.
The central processing unit firstly calculates the fuel volume of the fuel tank and then calculates the fuel quality of the fuel tank according to the liquid level and temperature data of the fuel tank and a fuel tank capacity table;
firstly, the fuel volume of the fuel tank is calculated, taking a fuel tank capacity table (figure 3) of a ship as an example, polynomial fitting is utilized, and the coefficient of the polynomial is determined by adopting a least square method, so that a formula between the liquid level h and the volume V of the fuel tank is obtained. The curve fitting can be performed by using common Excel, SPSS, Origin, matlab and other software, and is exemplified by Excel below (as shown in fig. 4):
Vt＝4.373h4-19.32h3+29.787h2+2.2025h-0.1314
in the formula, VtThe volume of fuel oil at t ℃ (ordinate in the figure) is in cubic meter; h is the fuel tank liquid level height (abscissa in the figure) in meters; the coefficient is determined by adopting a least square method according to a fuel tank capacity table; the fitting order is derived by gradually inputting from 1 to 5, the best fitting effect is obtained when the order is 4, and the coefficient R is judged20.9999; and automatically calculating the fuel volume of the fuel tanks in the central processing unit according to the calculated Vt (f (h)) formula of each fuel tank and the collected liquid level data.
And then calculating the fuel quality of the fuel tank, wherein the ship fuel measurement needs to be measured according to a petroleum measurement standard, the current ship fuel measurement in the international shipping lease ship market generally adopts an ASTM-D1250 standard, and the calculation formula is as follows:
M＝Vt×VCF15×(ρ15-0.0011)
in the formula (I), the compound is shown in the specification,
m is the fuel mass;
Vtvolume of fuel at t deg.C, unit m3；
ρ15The standard density of oil products at 15 ℃, and is obtained by searching BND (BUNKER DELIVERY NOTE) or BNR (BUNKER DELIVERY RECEIPT) provided by oil suppliers during the oil filling of ships; wherein the unit is t/m3；
0.0011 is a weight correction factor obtained by looking at ASTM TABLE 56, which has a constant difference of 0.0011t/m from the density of the fuel at 15 ℃ in the range of the density of the conventional fuel3；
VCF15Volume correction factor for standard temperature 15 ℃, dimensionless, is calculated by the following formula:
VCF15＝e-αΔt(1+0.8αΔt)
where Δ t ═ t-15, the difference between the measured temperature t and 15 ℃, and e is the base of the natural logarithm, where α is calculated using the following formula:
α＝k0/ρ15 2+k1/ρ15+A
in the formula, ρ15Is the standard density, k, of the oil at 15 DEG C0、k1And A is an empirical value, and the standard ISO-91/1 provides each parameter K in the volume expansion coefficient according to various types and standard density sections0、K1Empirical value of A, as shown in FIG. 5, ship fuel standard density ρ15Generally in the range of 838.3-1163.5Kg/m3, so that K0＝186.9696；K1＝0.4862；A＝0。
The central processing unit comprises a fuel abnormal state alarm module for alarming fuel storage abnormity and fuel consumption abnormity, wherein the fuel consumption abnormity is as follows:
change value of total stock of all fuel oil cabins-ship theoretical consumption > alarm set value
In the formula, the total stock change value of all fuel tanks is as follows: acquiring stock change data of the fuel oil precipitation cabinet and the daily cabinet through a ship operation monitoring system;
theoretical consumption of the ship: the ship equipment oil consumption data and the ship navigation data collected by the central processing unit are combined with the load-oil consumption curves of the bench test and the navigation test to obtain the theoretical consumption of the ship under various sea conditions.
System parameter
1) Power supply: AC220V 50/60Hz, DC 24V;
2) the temperature of the working environment: 0-55 ℃;
3) the system can resist the vibration and impact generated in the daily sailing process of the ship;
4) the system collects signals: switching value, analog quantity 4-20 mA, RS485, RS232, TCP/IP and the like;
5) the system measures and calculates the speed: 5 times/second;
6) the system ship-shore data transmission mode is as follows: 4G/5G or satellite communication, and real-time transmission;
7) the data storage of 3 years at the ship end and more than 5 years at the cloud end is extensible.
System function
1) Monitoring ship fuel consumption condition
Inquiring fuel consumption data of a single ship in real time;
and inquiring fuel data of ships of the same route, the same trade area, the same department, the same type and the same type.
2) Determining individual ship dynamic fuel quota
And analyzing historical data of fuel consumption to formulate the quota of the single ship.
3) Forming a standard statistical report chart
Automatically counting the oil consumption data to form a daily consumption, weekly consumption, monthly consumption and voyage consumption statistical report form in a standard format;
daily reports of each single ship are automatically formed, and a single ship fuel oil energy consumption longitudinal comparison chart is formed.
4) Fuel oil abnormity alarm
The system automatically judges the abnormality and sends alarm information, and provides a related report.
5) And providing data support and suggestion for optimizing the navigation scheme.
According to the ship operation data and the ship navigation data, statistics and analysis are carried out by combining with fuel consumption data, the optimal economic navigation speed and four-side draft data are searched, the ship main equipment including a host, a generator and a boiler operation state and operation parameters are recommended according to the fuel consumption, the host rotation speed, the generator load, the number of on-line working platforms, the boiler load parameters and the like are adjusted, the most economic equipment operation state is found, and the fuel consumption is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (9)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115017684A (en) * | 2022-05-25 | 2022-09-06 | 广州星际海洋工程设计有限公司 | Intelligent energy efficiency management system for ship |
| CN115277743A (en) * | 2022-06-22 | 2022-11-01 | 上海万舟通海事技术有限公司 | Internet of things-based ship energy consumption and carbon emission monitoring system |
| CN115675774A (en) * | 2022-11-23 | 2023-02-03 | 中国舰船研究设计中心 | Real-time monitoring and alarming system and method for wind resistance of ship |
| CN116001978A (en) * | 2023-01-06 | 2023-04-25 | 福建国安船业有限公司 | Daily oil and power oil transition method, system device and medium for ferry |
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| CN111238598A (en) * | 2020-02-26 | 2020-06-05 | 青岛航联创新科技有限公司 | Automatic measurement system and measurement method for fuel oil storage amount of ship oil tank |
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| CN115277743B (en) * | 2022-06-22 | 2023-10-20 | 上海万舟通海事技术有限公司 | Ship energy consumption and carbon emission monitoring system based on Internet of things |
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Application publication date: 20211217 |