CN112213108A - Fuel consumption measuring system and method for marine low-speed diesel engine - Google Patents
Fuel consumption measuring system and method for marine low-speed diesel engine Download PDFInfo
- Publication number
- CN112213108A CN112213108A CN202010950694.0A CN202010950694A CN112213108A CN 112213108 A CN112213108 A CN 112213108A CN 202010950694 A CN202010950694 A CN 202010950694A CN 112213108 A CN112213108 A CN 112213108A
- Authority
- CN
- China
- Prior art keywords
- fuel
- consumption
- mass flow
- gas
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
A fuel consumption measuring system of a marine low-speed diesel engine is arranged on a fuel pipeline and a gas pipeline and comprises a fuel consumption and gas consumption measuring instrument and a plurality of mass flow detection channels; the mass flow detection channel comprises a mass flow meter which is arranged in a fuel oil pipeline and a fuel gas pipeline and is connected with the oil consumption and gas consumption measuring instrument, the mass flow meter measures the fuel oil mass flow or the fuel gas mass flow of the pipeline in which the mass flow meter is arranged in real time and transmits a flow data signal to the oil consumption and gas consumption measuring instrument, and the oil consumption and gas consumption measuring instrument comprises an industrial processor, an industrial touch screen and an entity key which are connected with each other; the fuel consumption and gas consumption measuring instrument collects, analyzes and processes fuel mass flow data fed back by each mass flow detection channel, further calculates the result of fuel consumption and gas consumption, generates and derives a fuel consumption and gas consumption measurement report, and simultaneously displays a graphical test result, thereby completing the automatic measurement of fuel consumption of the marine low-speed diesel engine. The invention realizes the on-line automatic real-time test of different fuel consumption of various types of machines, and has the advantages of accurate measurement and convenient operation.
Description
Technical Field
The invention relates to a dual-fuel low-speed diesel engine for a ship, in particular to a fuel consumption measuring system and method of the low-speed diesel engine for the ship, and belongs to the technical field of the diesel engine for the ship.
Background
As is known to all, the proportion of fuel cost in the ship transportation cost is very large, when the oil price is high, even more than 50 percent, the economy of ship operation is affected when the oil consumption is increased by 1 gram, and meanwhile, the fuel oil consumption and the ship EEDI energy consumption control index have close relation, so that the industry pays very attention to the unit power fuel consumption of the marine diesel engine. All marine low-speed diesel engines need to be subjected to bench tests before leaving a factory, and the actual oil consumption of each power point of the diesel engine is measured.
Due to the increased emission standards of the ships and high fuel costs of the IMO, the ECA zone has currently implemented the T3 emission standard, and the trend toward fuel diversification has begun to develop in low speed marine diesel engines, where natural gas is the most widely used alternative or auxiliary fuel. Since the FAT requires testing of the consumption of various fuels, it is necessary to measure the consumption of oil and gas in various modes. The fuel consumption to be measured for a marine dual fuel diesel engine consists of three parts: in the bench experiment process, consumption of the three fuels needs to be measured at each power load point, and diesel engine performance data is submitted as project verification. The existing fuel consumption measuring method and device are shown in figure 1, a fuel consumption and gas consumption measuring instrument measures the consumption of diesel oil through a fuel flowmeter arranged on a pipeline from a fuel tank to an engine, and measures the consumption of natural gas through the fuel flowmeter arranged on a pipeline from a gas source to the engine; the signals collected by the flowmeter are pulse signals, and are accessed to a fuel consumption and gas consumption measuring instrument to analyze and calculate the consumption of various fuels, so that fuel consumption data of the engine under various modes are obtained.
Because the traditional measurement is carried out in a manual mode, the defects of complex operation and large measurement data error caused by low equipment precision exist, and different fuel consumption metering cannot be carried out simultaneously.
Disclosure of Invention
The invention aims to provide a fuel consumption measuring system and method of a marine low-speed diesel engine, which are arranged on a test bench, adopt a flexibly configured comprehensive fuel consumption testing application program to carry out online real-time test on the fuel consumption of the marine low-speed diesel engine, realize automatic tests of fuel oil, fuel gas, dual fuel and various types of engines and different fuel oil modes, form a test report, and achieve the effects of convenient operation, efficiency improvement, error reduction and wide application range.
The technical scheme adopted for solving the technical problems is as follows:
a fuel consumption measuring system of a marine low-speed diesel engine is arranged on a fuel pipeline and a fuel gas pipeline of the marine low-speed diesel engine, wherein the fuel pipeline comprises a diesel oil inlet pipeline, a diesel oil return pipeline, a fuel oil leading inlet pipeline and a fuel oil leading return pipeline, and the fuel gas pipeline comprises an air inlet pipeline and an air return pipeline; the method is characterized in that: the fuel consumption measuring system comprises a fuel consumption and gas consumption measuring instrument and a plurality of mass flow detecting channels connected with the fuel consumption and gas consumption measuring instrument;
the mass flow detection channel comprises a mass flow meter which is arranged in each fuel oil pipeline and each fuel gas pipeline and is connected with the fuel oil consumption and gas consumption measuring instrument, the mass flow meter measures the fuel oil mass flow of the fuel oil pipeline or the fuel gas mass flow of the fuel gas pipeline in real time, and transmits the measured flow data signals to the fuel oil consumption and gas consumption measuring instrument;
the oil consumption and gas consumption measuring instrument is processed based on FPGA hardware development and Linux RealTime real-time score algorithm, and provides data input, recording, storing and exporting operations in a man-machine interaction mode, and comprises an industrial processor, an industrial touch screen and entity keys for starting, stopping, configuring and emergency cutting-off, wherein the industrial processor, the industrial touch screen and the entity keys are connected with one another; the industrial processor is internally provided with a digital filtering, pulse equivalent demodulation, interference suppression and hardware watchdog realization circuit, the industrial touch screen realizes user login, system setting and a control main interface through software, and the control main interface comprises the following functions: starting/stopping an automatic control state, setting a working mode, setting a fuel mode, setting parameters, exiting a control main interface, displaying fault prompt information, measurement information of each mass flow detection channel and data of a fuel consumption and gas consumption calculation result;
the oil consumption and gas consumption measuring instrument collects, analyzes and processes fuel mass flow and gas mass flow data fed back by each mass flow detection channel according to system setting and key action of an operator, performs on-line fitting and curve smoothing on flow data signals measured by the mass flow meter in real time, enables test data to have differential conductivity, further calculates result data of oil consumption and gas consumption, finally generates and derives an oil consumption and gas consumption measurement report, and simultaneously displays a graphical test result on the industrial touch screen in real time, thereby completing automatic measurement of fuel consumption of the marine low-speed diesel engine.
As a further improvement, the fuel consumption measurement system further comprises a calibration channel, which is used for performing calibration test on the fuel consumption and gas consumption measurement instrument, supporting static debugging on each mass flow meter and output signals thereof, and ensuring correct data, wherein the calibration precision is better than 0.05%, so that the self-calibration function and good fault tolerance of the fuel consumption measurement system are realized.
As a further improvement, the mass flow detection channel is provided with an adjustable digital filter and supports the filtering function of any adjustable threshold of 1-50 us so as to prevent electromagnetic interference and power supply interference.
As a further improvement, the mass flowmeter is a Coriolis force mass flowmeter, 4-20mA current signals or pulse/frequency signals are output, the precision is 0.1%, and the mass flow measurement accuracy is 0.2 grade.
As a further improvement, the oil consumption and gas consumption measuring instrument is provided with a plurality of standby interfaces.
As a further improvement, the test response time of the fuel consumption measuring system is less than 100ms, the output pulse equivalent of the fuel oil and the fuel gas is adjustable at will, the pulse width is adjustable, the output pulse equivalent is compatible with 0.001-1kg/P and adjustable at will, and the adjusting step length is 0.001 kg/P.
As a further improvement, the fuel gas comprises natural gas, liquefied petroleum gas, ethane and propane.
The other technical scheme of the invention is as follows:
a fuel consumption measuring method of a marine low-speed diesel engine realized by adopting the measuring system is characterized in that: the fuel consumption measuring method comprises the following steps:
1) after the diesel engine is assembled, performing a bench test, starting the fuel consumption measuring system, and entering a control main interface through login;
2) setting a working mode of a timing mode or a manual mode, setting a fuel mode of a diesel mode or a dual-fuel mode, setting action control logic and parameter setting of measurement time on a control main interface, and inputting appropriate setting parameters according to the equivalent weight of a host system when the diesel engine is at a certain load point;
3) selecting a diesel mode when the fuel is diesel, pressing down a measuring entity key and a virtual key on the industrial touch screen, automatically selecting a mass flow detection channel by the system, and measuring the diesel oil consumption;
4) when the fuel is gas, a dual-fuel mode is selected, all the mass flow detection channels are in a working state, a measurement entity key and a virtual key on the industrial touch screen are pressed, the system automatically selects the mass flow detection channels, and the diesel oil consumption and the gas consumption are measured at the same time;
5) when the mass flow detection channels work, measured flow data signals are input into the oil consumption and gas consumption measuring instrument by the mass flow meters in real time, the mass flow data fed back by the mass flow detection channels are collected and analyzed by the industrial processor, the flow data signals are subjected to online fitting and curve smoothing, so that the test data have differential conductibility, the result data of oil consumption and gas consumption are further calculated, finally, a customized oil consumption and gas consumption measurement report is derived, a PDF file is generated and provided, and meanwhile, the graphical test result is displayed on the industrial touch screen in real time, so that the automatic measurement of the fuel consumption of the marine low-speed diesel engine is completed.
Compared with the prior art, the invention achieves the following beneficial technical effects:
1) the automatic metering function of the fuel consumption of the diesel engine is realized, and the technical problem of deviation of the fuel consumption combustion machine of the diesel engine caused by measurement errors caused by a manual operation mode is solved;
2) the problem of metering the consumption of various fuels when the dual-fuel diesel engine simultaneously runs with different fuels in a bench test is solved;
3) the self-contained timing device of the invention can automatically run the system timing and signal acquisition, thus avoiding the error caused by manual operation timing;
4) the defects that the existing fuel oil measuring equipment is low in precision, inaccurate in control, incapable of realizing automatic control, complex in operation, low in system fault tolerance rate, unfriendly in interface and the like, and an intuitive operation panel is not provided are overcome;
5) the system is provided with a calibration device and can be automatically calibrated, so that the system has good fault tolerance, the condition that the system is unrecoverable is avoided, data acquisition errors are caused, and the whole test result is wrong;
6) the system has the functions of mode setting and parameter setting, can manually set a timing mode or a manual mode, defines various parameter parameters by self, sets the pulse equivalent for matching proper flow, and automatically operates according to the setting mode and the parameters, so the system is simple to operate, and an operator can master and skillfully use the system more quickly;
7) the invention can complete the self-defined experimental tests of various different fuels aiming at specific machine types, including various fuel working modes such as diesel oil, natural gas, liquefied petroleum gas, ethane, propane and the like, realizes the automatic and accurate measurement of all fuel consumption, and has wide applicability;
8) the mass flow detection channel of the system is provided with the adjustable digital filter, so that the influence of electromagnetic interference and power supply interference on the accuracy of the test data is effectively prevented.
Drawings
Fig. 1 is a schematic diagram of a conventional oil consumption and gas consumption measurement system.
FIG. 2 is a schematic diagram of the system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the scope of the invention as claimed should not be limited thereby.
Referring to fig. 2, the fuel consumption measuring system of the marine low-speed diesel engine includes a fuel consumption and gas consumption measuring instrument 1 and six mass flow meters: a first mass flow meter G1, a second mass flow meter G2, a third mass flow meter G3, a fourth mass flow meter G4, a fifth mass flow meter G5 and a sixth mass flow meter G6.
The six mass flowmeters are Coriolis mass flowmeters. The flowmeter has high metering accuracy, works stably and reliably, can directly measure the mass flow of fluid in a pipeline, and can realize high-accuracy direct measurement of the mass flow of the fluid within a large range ratio; the mass flow meter has high measured data accuracy and good repeatability, can acquire and display signals of the current real-time flow, has the accuracy of 0.1 percent, has the mass flow measurement accuracy of 0.2 grade, and can accurately measure the temperature and the density of a fluid medium; the mass flow meter outputs a 4-20mA current signal and can also output a pulse/frequency signal. The mass flowmeter has the advantages of high reliability, long service life, small maintenance amount, convenient use and good safety performance because no obstacles and movable parts exist in the pipeline; the mass flowmeter is suitable for wide range of fluid media, and can measure high-viscosity non-Newtonian fluid in addition to uniform fluid with general viscosity; not only can measure the fluid parameters of a single solution, but also can measure the multiphase flow with more uniform mixing; whether the medium is laminar or turbulent, the accuracy of the measurement is not affected. The six mass flowmeters are respectively connected with the oil consumption gas consumption measuring instrument 1 through connecting cables and transmit pulse signals obtained by measurement to the oil consumption gas consumption measuring instrument 1; wherein:
the first mass flow meter G1 is installed in a diesel oil inlet pipeline of the marine diesel engine and is connected with the oil consumption gas consumption measuring instrument 1, and a diesel oil inlet flow data signal obtained by testing is transmitted to the oil consumption gas consumption measuring instrument 1;
the second mass flow meter G2 is installed in a diesel oil return pipeline of the marine diesel engine and is connected with the oil consumption gas consumption measuring instrument 1, and a diesel oil return flow data signal obtained by testing is transmitted to the oil consumption gas consumption measuring instrument 1;
the third mass flow meter G3 is arranged in a pilot oil inlet pipeline of the marine diesel engine and is connected with the oil consumption gas consumption measuring instrument 1, and a pilot oil inlet flow data signal obtained by testing is transmitted to the oil consumption gas consumption measuring instrument 1;
the fourth mass flow meter G4 is arranged in a pilot oil return pipeline of the marine diesel engine, is connected with the oil consumption gas consumption measuring instrument 1 and transmits a pilot oil return flow data signal obtained by testing to the oil consumption gas consumption measuring instrument 1;
the fifth mass flow meter G5 is installed in an LNG or LPG inlet pipeline of the marine diesel engine, is connected with the oil consumption and gas consumption measuring instrument 1, and transmits an LNG or LPG inlet flow data signal obtained through testing to the oil consumption and gas consumption measuring instrument 1;
the sixth mass flow meter G6 is installed in an LNG or LPG return gas pipeline of the marine diesel engine, and is connected to the fuel consumption and gas consumption meter 1, and transmits a measured LNG or LPG return gas flow data signal to the fuel consumption and gas consumption meter 1.
The oil consumption and gas consumption measuring instrument 1 comprises an industrial processor. The industrial processor is mainly used for collecting data signals, processing signals, metering and the like; the oil consumption and gas consumption measuring instrument 1 is internally provided with a Linux real time analysis processing toolkit, performs upper-layer digital calculus processing on equivalent data signals returned by an FPGA (field programmable gate array), performs online fitting and curve smoothing on flow data signals measured and fed back by the mass flowmeter in real time, enables test data to have differential conductibility, extracts singular point increment signals from a real-time historical curve of the data, and performs analysis processing of time accumulation effect on a non-conductible curve growth trend; the algorithm is realized by integrating a real-time processing tool related to micro-integration and linear algebra, so that the continuous growth characteristic of data is ensured, and better conformity with actual flow data of each part is ensured. The industrial processor has a hysteresis effect on the output of each mass flow meter.
The oil consumption and gas consumption measuring instrument 1 is processed based on FPGA hardware development and a Linux RealTime real-time score algorithm, and is reasonable in framework level, safe and reliable; the FPGA hardware circuit is internally provided with digital filtering, pulse equivalent demodulation, interference suppression and hardware watchdog for realization, and the hardware processing module adopts embedded analysis hardware, so that an effective graphical operation interface can run and respond to hardware by 1us in real time, and the complete reliability of system operation is ensured. The oil consumption and gas consumption measuring instrument 1 adopts a man-machine interaction operation mode, is provided with an industrial touch screen and is also provided with solid keys for starting, stopping, configuring and emergency cutting off so as to ensure the real-time reliable operation of the system. The industrial touch screen is mainly used for an electronic visual interface, adopts a 12-inch colored industrial capacitive touch screen and is connected with the industrial processor through a data line; the main application software of the touch screen system software system is based on LabVIEW programming development language, and the software functions comprise functions of user login, system setting, main interface control and the like, so that an operator can operate the touch screen system software system, and operations such as data recording, data storage, data export and the like are provided through a screen. The control main interface comprises the following functions: starting/stopping automatic control state, working mode setting, fuel mode setting, parameter setting, exiting control main interface, displaying fault prompt information, measuring information of mass flow meters of all pipelines, oil consumption and gas consumption calculation result data and the like.
The oil consumption and gas consumption measuring instrument 1 is provided with a plurality of standby interfaces S, can be connected with 8 mass flowmeters at most simultaneously, and collects data simultaneously.
The fuel consumption measuring system is provided with 8 paths of mass flow detecting channels, and flow data signals of each mass flowmeter, such as diesel oil inlet and outlet, fuel oil inlet and outlet, other environment-friendly fuel inlet and outlet and the like, are connected to the oil consumption and gas consumption measuring instrument 1; the mass flow detection channel is compatible with active and passive cumulative flow output, and the test precision is better than 0.1%; the 8 compatible real-time flow input channels can acquire and display signals of the current real-time flow, and the precision is 0.1%; the mass flow detection channel is provided with an adjustable digital filter, supports the filtering function of any adjustable threshold of 1-50 us, and effectively prevents the influence of electromagnetic interference and power supply interference on the accuracy of test data.
The fuel consumption measuring system has a calibration function; the system is provided with 1 path of calibration channels, carries out calibration test on the oil consumption and gas consumption measuring instrument 1, supports static debugging on communication channels and signals of each flowmeter of the mass flow detection channel, and ensures correct data; the system calibration accuracy is better than 0.05%.
The test response time of the fuel consumption measuring system is less than 100ms, the output pulse equivalent of the fuel oil and the fuel gas is adjustable at will, the pulse width is adjustable, the output pulse equivalent of the fuel oil and the fuel gas is adjustable at will and compatible with 0.001-1kg/P, and the adjusting step length is 0.001 kg/P.
The fuel consumption measuring system enters a system initial interface after being started, the default initial interface is a login interface, and a user can enter a control main interface if correct user information is required to be input; the system can be manually set to be in a timing mode or a manual mode, so that the system is convenient for an operator to use; the mode selection is carried out according to the needs, various fuel oil working modes of the diesel engine which are randomly set can be compatible, the working modes of the fuel oil and fuel gas loop can be configured, and the experiment period, the experiment duration, the oil consumption rate, the gas consumption rate and the like can be flexibly configured.
The fuel consumption measurement system can export and provide a customized oil consumption and gas consumption measurement report, generate a PDF file, and simultaneously display a graphical test result on an industrial touch screen in real time, so that the safety and reliability of the experimental result are ensured.
The working temperature range of the fuel consumption measuring system is-10-55 ℃, and communication interfaces such as RS232, LAN ports, USB interfaces and the like are arranged.
The flow of the operation measuring method of the fuel consumption measuring system is as follows:
1. after the normal assembly of the diesel engine is finished, a bench test is required; after the fuel consumption measuring system is powered on, the system automatically runs and enters a login interface, an operator inputs correct user information (comprising a set user name and a set password), and then the operator logs in and enters a control main interface; the main interface is controlled to display and control the following functions: starting/stopping automatic control state, emergency stopping automatic control state, system parameter setting, exiting control main interface, displaying signal acquisition time, real-time analysis result and the like, displaying fault prompt information and the like, and prompting corresponding fault information when software has faults.
2. Setting a system on a control main interface, and setting a timing mode or a manual mode, a diesel mode or a dual-fuel mode, an action control logic, a measurement time, an emergency stop action and the like; when the diesel engine is at a certain load point, proper setting parameters are input according to the equivalent weight of the host system.
3. Under the normal condition that the diesel engine uses a diesel mode, the used fuel is diesel, and the pilot oil and other environment-friendly fuels are in a standby state; at this time, a diesel engine mode is selected on an operation panel of an industrial touch screen of the oil consumption and gas consumption measuring instrument 1, after the measuring time is set, a measuring entity key and a virtual key on the industrial touch screen are pressed, and a system automatically selects a mass flow detection channel and measures diesel oil consumption.
4. When the diesel engine uses a dual-fuel mode, the used fuel is environment-friendly fuel such as LNG or LPG, and the fuel oil and other environment-friendly fuel are in working states; at this time, a dual-fuel mode is selected on an industrial touch screen of the oil consumption and gas consumption measuring instrument 1, after the measuring time is set, a measuring entity key and a virtual key on a touch pad are pressed, a mass flow detection channel is automatically selected by the system, and diesel oil consumption and gas consumption are measured.
5. The system carries out automatic or manual operation according to software or key action of an operator and according to a set action control logic, and inputs flow data signals of each mass flowmeter, such as diesel oil inlet and outlet, fuel oil inlet and outlet, other environment-friendly fuel inlet and outlet and the like, into the oil consumption and gas consumption measuring instrument 1; the industrial processor collects, analyzes and processes data fed back by each mass flow detection channel, performs on-line fitting and curve smoothing on flow data signals measured by the mass flow meter in real time, so that test data have differential conductibility, further calculates result data of oil consumption and gas consumption, finally derives a customized oil consumption and gas consumption measurement report, generates and provides a PDF file, and simultaneously displays a graphical test result on an industrial touch screen in real time, thereby completing automatic measurement of fuel consumption of the marine low-speed diesel engine.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. That is, all equivalent changes and modifications made according to the contents of the present application should be considered to be within the technical scope of the present invention.
Claims (8)
1. A fuel consumption measuring system of a marine low-speed diesel engine is arranged on a fuel pipeline and a fuel gas pipeline of the marine low-speed diesel engine, wherein the fuel pipeline comprises a diesel oil inlet pipeline, a diesel oil return pipeline, a fuel oil leading inlet pipeline and a fuel oil leading return pipeline, and the fuel gas pipeline comprises an air inlet pipeline and an air return pipeline; the method is characterized in that: the fuel consumption measuring system comprises a fuel consumption and gas consumption measuring instrument and a plurality of mass flow detecting channels connected with the fuel consumption and gas consumption measuring instrument;
the mass flow detection channel comprises a mass flow meter which is arranged in each fuel oil pipeline and each fuel gas pipeline and is connected with the fuel oil consumption and gas consumption measuring instrument, the mass flow meter measures the fuel oil mass flow of the fuel oil pipeline or the fuel gas mass flow of the fuel gas pipeline in real time, and transmits the measured flow data signals to the fuel oil consumption and gas consumption measuring instrument;
the oil consumption and gas consumption measuring instrument is processed based on FPGA hardware development and Linux RealTime real-time score algorithm, and provides data input, recording, storing and exporting operations in a man-machine interaction mode, and comprises an industrial processor, an industrial touch screen and entity keys for starting, stopping, configuring and emergency cutting-off, wherein the industrial processor, the industrial touch screen and the entity keys are connected with one another; the industrial processor is internally provided with a digital filtering, pulse equivalent demodulation, interference suppression and hardware watchdog realization circuit, the industrial touch screen realizes user login, system setting and a control main interface through software, and the control main interface comprises the following functions: starting/stopping an automatic control state, setting a working mode, setting a fuel mode, setting parameters, exiting a control main interface, displaying fault prompt information, measurement information of each mass flow detection channel and data of a fuel consumption and gas consumption calculation result;
the oil consumption and gas consumption measuring instrument collects, analyzes and processes fuel mass flow and gas mass flow data fed back by each mass flow detection channel according to system setting and key action of an operator, performs on-line fitting and curve smoothing on flow data signals measured by the mass flow meter in real time, enables test data to have differential conductivity, further calculates result data of oil consumption and gas consumption, finally generates and derives an oil consumption and gas consumption measurement report, and simultaneously displays a graphical test result on the industrial touch screen in real time, thereby completing automatic measurement of fuel consumption of the marine low-speed diesel engine.
2. The fuel consumption measuring system of a marine low-speed diesel engine according to claim 1, characterized in that: the fuel consumption measuring system also comprises a calibration channel which is used for carrying out calibration test on the fuel consumption and gas consumption measuring instrument, supporting static debugging on each mass flowmeter and output signals thereof, ensuring correct data and having the calibration precision superior to 0.05 percent, thereby realizing the self-calibration function and good fault tolerance of the fuel consumption measuring system.
3. The fuel consumption measuring system of a marine low-speed diesel engine according to claim 1, characterized in that: the mass flow detection channel is provided with an adjustable digital filter and supports the filtering function of any adjustable threshold of 1-50 us so as to prevent electromagnetic interference and power supply interference.
4. The fuel consumption measuring system of a marine low-speed diesel engine according to claim 1, characterized in that: the mass flowmeter is a Coriolis force mass flowmeter, outputs a 4-20mA current signal or a pulse/frequency signal, has the precision of 0.1 percent, and has the mass flow measurement accuracy of 0.2 grade.
5. The fuel consumption measuring system of a marine low-speed diesel engine according to claim 1, characterized in that: the oil consumption and gas consumption measuring instrument is provided with a plurality of standby interfaces.
6. The fuel consumption measuring system of a marine low-speed diesel engine according to claim 1, characterized in that: the test response time of the fuel consumption measuring system is less than 100ms, the output pulse equivalent of the fuel oil and the fuel gas is adjustable at will, the pulse width is adjustable, the output pulse equivalent is adjustable at will and compatible with 0.001-1kg/P, and the adjusting step length is 0.001 kg/P.
7. The fuel consumption measuring system of a marine low-speed diesel engine according to claim 1, characterized in that: the fuel gas comprises natural gas, liquefied petroleum gas, ethane and propane.
8. A fuel consumption measuring method of a marine low-speed diesel engine using the measuring system according to claim 1, characterized in that: the fuel consumption measuring method comprises the following steps:
1) after the diesel engine is assembled, performing a bench test, starting the fuel consumption measuring system, and entering a control main interface through login;
2) setting a working mode of a timing mode or a manual mode, setting a fuel mode of a diesel mode or a dual-fuel mode, setting action control logic and parameter setting of measurement time on a control main interface, and inputting appropriate setting parameters according to the equivalent weight of a host system when the diesel engine is at a certain load point;
3) selecting a diesel mode when the fuel is diesel, pressing down a measuring entity key and a virtual key on the industrial touch screen, automatically selecting a mass flow detection channel by the system, and measuring the diesel oil consumption;
4) when the fuel is gas, a dual-fuel mode is selected, all the mass flow detection channels are in a working state, a measurement entity key and a virtual key on the industrial touch screen are pressed, the system automatically selects the mass flow detection channels, and the diesel oil consumption and the gas consumption are measured at the same time;
5) when the mass flow detection channels work, measured flow data signals are input into the oil consumption and gas consumption measuring instrument by the mass flow meters in real time, the mass flow data fed back by the mass flow detection channels are collected and analyzed by the industrial processor, the flow data signals are subjected to online fitting and curve smoothing, so that the test data have differential conductibility, the result data of oil consumption and gas consumption are further calculated, finally, a customized oil consumption and gas consumption measurement report is derived, a PDF file is generated and provided, and meanwhile, the graphical test result is displayed on the industrial touch screen in real time, so that the automatic measurement of the fuel consumption of the marine low-speed diesel engine is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010950694.0A CN112213108A (en) | 2020-09-11 | 2020-09-11 | Fuel consumption measuring system and method for marine low-speed diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010950694.0A CN112213108A (en) | 2020-09-11 | 2020-09-11 | Fuel consumption measuring system and method for marine low-speed diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112213108A true CN112213108A (en) | 2021-01-12 |
Family
ID=74050365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010950694.0A Pending CN112213108A (en) | 2020-09-11 | 2020-09-11 | Fuel consumption measuring system and method for marine low-speed diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112213108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116605378A (en) * | 2023-07-20 | 2023-08-18 | 中交一航局第一工程有限公司 | Fuel oil monitoring system of large pile driving ship and large pile driving ship |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907175A (en) * | 2017-11-07 | 2018-04-13 | 大连海事大学 | A kind of marine diesel oil consumption contrast metering method and high precision measuring system |
| CN108020285A (en) * | 2017-12-13 | 2018-05-11 | 上海中车汉格船舶与海洋工程有限公司 | The detection method and operation control system of a kind of oil consumption of diesel engine |
| CN208140372U (en) * | 2018-05-11 | 2018-11-23 | 杭州世路胜环保科技有限公司 | A kind of dual fuel engine bench detection system |
| WO2018229845A1 (en) * | 2017-06-13 | 2018-12-20 | 日本郵船株式会社 | Fuel consumption acquisition device, fuel consumption acquisition method, and fuel consumption acquisition program |
| CN109488466A (en) * | 2018-10-29 | 2019-03-19 | 上海中船三井造船柴油机有限公司 | Light fluid module for marine low-speed dual-fuel diesel engine |
| CN110207993A (en) * | 2019-04-30 | 2019-09-06 | 天津大学 | A kind of pilot system of double fuel single-cylinder engine machine frame |
-
2020
- 2020-09-11 CN CN202010950694.0A patent/CN112213108A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018229845A1 (en) * | 2017-06-13 | 2018-12-20 | 日本郵船株式会社 | Fuel consumption acquisition device, fuel consumption acquisition method, and fuel consumption acquisition program |
| CN107907175A (en) * | 2017-11-07 | 2018-04-13 | 大连海事大学 | A kind of marine diesel oil consumption contrast metering method and high precision measuring system |
| CN108020285A (en) * | 2017-12-13 | 2018-05-11 | 上海中车汉格船舶与海洋工程有限公司 | The detection method and operation control system of a kind of oil consumption of diesel engine |
| CN208140372U (en) * | 2018-05-11 | 2018-11-23 | 杭州世路胜环保科技有限公司 | A kind of dual fuel engine bench detection system |
| CN109488466A (en) * | 2018-10-29 | 2019-03-19 | 上海中船三井造船柴油机有限公司 | Light fluid module for marine low-speed dual-fuel diesel engine |
| CN110207993A (en) * | 2019-04-30 | 2019-09-06 | 天津大学 | A kind of pilot system of double fuel single-cylinder engine machine frame |
Non-Patent Citations (2)
| Title |
|---|
| 吴世鸣: "船用柴油/天然气双燃料发动机EOL系统开发", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技Ⅱ辑》 * |
| 高美芹: "商用车瞬时油耗虚拟测试系统研究", 《农业装备与车辆工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116605378A (en) * | 2023-07-20 | 2023-08-18 | 中交一航局第一工程有限公司 | Fuel oil monitoring system of large pile driving ship and large pile driving ship |
| CN116605378B (en) * | 2023-07-20 | 2023-09-22 | 中交一航局第一工程有限公司 | Fuel oil monitoring system of large pile driving ship and large pile driving ship |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102155470B (en) | Automatic detection and debugging system and method of hydraulic valve | |
| CN204989450U (en) | Portable electric energy meter calibration device and electric energy meter verification system | |
| CN101246035A (en) | Portable natural gas flow measuring and checking system | |
| CN108195447B (en) | Flowmeter calibration system and calibration method | |
| CN202599485U (en) | A novel flow mass detection device | |
| CN102589656B (en) | Sound delay testing method and measuring device for gas ultrasonic flowmeter | |
| CN103324157A (en) | Process control system | |
| CN105222865A (en) | Turbo flow meter on-line monitoring method and device | |
| CN112213108A (en) | Fuel consumption measuring system and method for marine low-speed diesel engine | |
| CN201837418U (en) | High-precision wide-range integrated throttle device | |
| CN103499373A (en) | Automobile oil tank truck capacity automatic inspection device with self-calibration function and inspection method | |
| CN104344862B (en) | The detection method of FCM10A type fuel consumption meters | |
| CN201107080Y (en) | Marine vehicle liquid tank containing mark measuring system | |
| CN103557911A (en) | On-line detection method, system and device of natural gas trade metering equipment | |
| CN202132312U (en) | Automatic test and debug system of hydraulic valve | |
| CN101529213A (en) | Flowmeter and its program | |
| CN205785378U (en) | Automobile fuel consumption detects and caliberating device in real time | |
| CN207816419U (en) | A kind of water flow calibrating installation | |
| Lees | Process computer alarm and disturbance analysis: Outline of methods for systematic synthesis of the fault propagation structure | |
| CN205015005U (en) | Fracturing equipment instrument detection device | |
| CN202221469U (en) | Control system for calibration console of gas relay | |
| CN204177426U (en) | Plug-in type one-piece type temperature and pressure compensation holder hand shaft flowmeter | |
| CN207989014U (en) | Drilling well downhole instrument parameter automatization harvester | |
| CN113945433A (en) | Multi-channel flue gas analyzer | |
| CN214096281U (en) | High-pressure angle type water meter mass method calibrating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210112 |