CN111765002A - Fuel oil moisture on-line monitoring and automatic processing system - Google Patents
Fuel oil moisture on-line monitoring and automatic processing system Download PDFInfo
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- CN111765002A CN111765002A CN202010444024.1A CN202010444024A CN111765002A CN 111765002 A CN111765002 A CN 111765002A CN 202010444024 A CN202010444024 A CN 202010444024A CN 111765002 A CN111765002 A CN 111765002A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 239000000295 fuel oil Substances 0.000 title claims abstract description 21
- 238000012545 processing Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000003921 oil Substances 0.000 claims abstract description 52
- 239000000446 fuel Substances 0.000 claims abstract description 20
- 230000006870 function Effects 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 8
- 230000030279 gene silencing Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention provides a fuel water online monitoring and automatic disposal system, wherein two electromagnetic valves and an interface sensor are arranged in a pipeline, a microcontroller collects signals of the interface sensor and controls the two electromagnetic valves according to the signals to realize automatic drainage of the pipeline, so that the problem that a diesel engine is damaged or cannot normally run due to untimely discovery or delayed conventional disposal when a fuel system accidentally enters water due to various reasons is effectively solved, and the online disposal of water inlet faults of a ship fuel system is realized; the water content sensor is arranged to detect the dielectric constant of the fuel oil, so that the water content change of the detected oil can be accurately measured on line, the water content value (ppm) of the detected oil and the water change curve of the fuel oil system at different time periods can be displayed in real time, an operator can be assisted to judge whether the oil needs to be replaced, the oil can be saved, and the equipment fault can be predicted.
Description
Technical Field
The invention belongs to the technical field of ship turbine engineering, and particularly relates to an on-line fuel oil moisture monitoring and automatic processing system.
Background
The fuel oil system is a key component of a ship power system, and the health state (temperature, water content, pollution condition and the like) of the fuel oil system is also one of the most important indexes of the overall performance of a ship in the navigation process of the ship. In recent years, accidents that a diesel engine breaks down or is damaged due to water entering of a fuel system of a ship frequently occur, so that not only is great economic loss caused, but also the aviation safety of the ship is influenced.
The monitoring and disposal of the ship fuel system at the present stage are divided into online real-time monitoring, laboratory offline detection and manual timing oil sample extraction visual observation and judgment. The treatment of the ship fuel system after water inlet is basically manual operation.
In the prior art, the ship power diesel monitoring system CN207571135U only has monitoring and alarming functions and does not have a real-time disposal function. The oil indicators (viscosity, temperature and moisture) are monitored by single probe type sensors respectively, and no specific detailed scheme is provided for processing and analyzing the monitoring data. The invention not only comprises the functions of monitoring, data analysis and alarming, but also adds the function of real-time handling of the faults of the monitoring equipment, and adopts different sensors for monitoring. Therefore, the prior art 1 is different from the present invention and has no conflict.
In the prior art, the oil water online monitoring device and the engineering machinery CN204389492U mainly focus on the design of an oil storage tank for monitoring, and the monitoring precision of the oil water can be improved. The prior art 2 does not have a real-time disposal function after the detection device fails, and the real-time monitoring and data analysis functions are not detailed. There is no conflict with the present invention.
Disclosure of Invention
In view of the above, the present invention provides an on-line fuel water monitoring and automatic disposal system, which can monitor the fuel water content and automatically discharge the stored water in the oil conservator.
A fuel moisture online monitoring and automatic disposal system comprises a microcontroller, a switching value output module, a switching value input module, a moisture sensor, an interface sensor, a first electromagnetic valve and a second electromagnetic valve;
an interface sensor, a first electromagnetic valve and a second electromagnetic valve are sequentially arranged in the pipeline from the interface to the water outlet; the first electromagnetic valve is lower than the interface sensor in the pipeline; under the normal state, the first electromagnetic valve and the second electromagnetic valve close the pipeline in which the first electromagnetic valve and the second electromagnetic valve are positioned; the microcontroller receives signals of the interface sensor through the switching value input module and outputs control instructions through the two electromagnetic valves of the switching value output module box;
the microcontroller is used for sending an opening instruction to the first electromagnetic valve and the second electromagnetic valve through the switching value output module after receiving the interface sensor signal through the switching value input module, and controlling the first electromagnetic valve and the second electromagnetic valve to open the pipeline respectively; after the set time, sending a closing instruction to the first electromagnetic valve and the second electromagnetic valve through the switching value output module, and controlling the first electromagnetic valve and the second electromagnetic valve to close the pipeline respectively;
the moisture sensor uploads the dielectric constant value of the oil to be detected to the microcontroller;
the microcontroller is configured to: receiving the dielectric constant of the pure oil of the oil to be measured by the water sensor, then measuring the dielectric constant of the oil to be measured with different water contents, and calculating the dielectric constant ratio of the oil to be measured with different water contents and the pure oil to obtain the corresponding relation between the water content and the dielectric constant ratio; during on-line measurement, the water sensor detects the dielectric constant of the oil in real time and sends the dielectric constant to the control system, and the microcontroller calculates the specific value of the dielectric constant measured by the water sensor and the dielectric constant of the pure oil and compares the specific value with the corresponding relation obtained by previous calibration to obtain the water content of the current oil.
Preferably, after receiving the interface sensor signal, the microcontroller sends an opening instruction to the second electromagnetic valve and the first electromagnetic valve first and then through the switching value output module, and controls the second electromagnetic valve and the first electromagnetic valve to open the pipeline.
Preferably, when the microcontroller sends a closing instruction to the first electromagnetic valve and the second electromagnetic valve, the microcontroller controls the first electromagnetic valve to close first, and then controls the second electromagnetic valve to close after delaying a set time.
Preferably, the interface sensor is a pilot force sensor with the model number of HR 2111.20.
Preferably, the microcontroller is also used for recording the water drainage times, when the water drainage times exceed a set threshold value within a set time, the fuel oil system is judged to intake a large amount of water, the microcontroller drives the alarm lamp and the buzzer to give out sound and light alarm, a crew is prompted to perform manual intervention, and the reason for water intake is investigated.
Further, the system also comprises a human-computer interaction interface; a touch screen is arranged on the human-computer interaction interface; the touch screen is communicated with the microcontroller through RS 485; and the user checks the operation data of the system through the touch screen and sets the operation parameters of the system.
Preferably, the human-computer interaction interface is provided with a self-checking key; when the self-checking button is pressed, the electromagnetic valve is not removed, other functions are automatically executed once, and whether the device works normally is checked.
Preferably, the human-computer interaction interface is provided with an emission key; when a discharge key is pressed down, the switching value input electric module sends an opening instruction to the first electromagnetic valve and the second electromagnetic valve, and the pipeline starts to drain water; when the drain button is pressed again, the first electromagnetic valve and the second electromagnetic valve are closed, and the water drainage is finished.
Preferably, the human-computer interaction interface is provided with a silencing key; when the silencing key is pressed down, a buzzer and an alarm lamp arranged in the system are turned off.
The invention has the following beneficial effects:
according to the fuel water online monitoring and automatic disposal system, the two electromagnetic valves and the interface sensor are arranged in the pipeline, the microcontroller collects signals of the interface sensor and controls the two electromagnetic valves according to the signals to realize automatic drainage of the pipeline, so that the problem that a diesel engine is damaged or cannot normally run due to untimely discovery or delayed conventional disposal when the fuel system accidentally enters water due to various reasons is effectively solved, and online disposal of water inlet faults of a ship fuel system is realized; the water content sensor is arranged to detect the dielectric constant of the fuel oil, so that the water content change of the detected oil can be accurately measured on line, the water content value (ppm) of the detected oil and the water change curve of the fuel oil system at different time periods can be displayed in real time, an operator can be assisted to judge whether the oil needs to be replaced, the oil can be saved, and the equipment fault can be predicted.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
fig. 2 is a schematic diagram of drainage control.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention discloses a fuel oil moisture online monitoring and automatic disposal system, which comprises a microcontroller, a switching value output module, a switching value input module, a moisture sensor, an interface sensor, a first electromagnetic valve, a second electromagnetic valve and a human-computer interaction interface, wherein the switching value output module is connected with the microcontroller; and the moisture sensor and the microcontroller are communicated by RS485, and the frame format is sequentially MODBUS-RTU. The moisture sensor uploads the dielectric constant value of the oil to be detected to the microcontroller according to a certain frequency.
The moisture sensor may measure the temperature and dielectric constant of the fuel in the fuel tank. Because the dielectric constant of water is different from that of oil phase, when the oil to be measured is mixed with water, the dielectric constant of the mixed oil can be obviously changed due to a small amount of water. Firstly, calibrating the moisture sensor, namely: the water sensor measures the dielectric constant of the pure oil of the oil to be measured, then measures the dielectric constant of the oil to be measured with different water contents, calculates the dielectric constant ratio of the oil to be measured with different water contents and the pure oil, obtains the corresponding relation between the water content and the dielectric constant ratio, and stores the corresponding relation into the microcontroller. During on-line measurement, the water sensor detects the dielectric constant of oil in the oil conservator in real time, after the signal is collected by the microcontroller, the dielectric constant measured by the water sensor and the dielectric constant of pure oil are compared with each other, and the corresponding relation obtained by calibration is compared with the dielectric constant measured by the water sensor and the dielectric constant of pure oil to obtain the water content of the current oil. The method has the advantages of high sensitivity, high precision and accurate measurement value, and ensures the stability and reliability of the fuel oil moisture detection.
The interface of the bottom of the oil conservator is connected with a pipeline leading to the water outlet, and an interface sensor, a first electromagnetic valve and a second electromagnetic valve are sequentially arranged in the pipeline from the interface to the water outlet; the first electromagnetic valve is lower than the interface sensor in the pipeline; under the normal state, the first electromagnetic valve and the second electromagnetic valve close the pipeline.
The microcontroller receives signals of the interface sensor through the switching value input module and outputs control instructions through the two electromagnetic valves of the switching value output module box.
The interface sensor adopts a pilot force sensor with the model number of HR 2111.20.
As shown in fig. 2, when the fuel system (oil conservator) is filled with water, the water is greater than the fuel in specific gravity, and will eventually gather at the bottom of the oil conservator and enter the connecting pipeline through the oil conservator connecting port until it is stopped by the first electromagnetic valve. When water is more and more in the pipeline, the water level is gradually increased, and when the water exceeds a probe of the interface sensor, the interface sensor detects that the flowing medium is changed from fuel oil to water, an electronic switch of the interface sensor is triggered to send a switching value signal to a switching value input module, and the switching value input module sends the signal to a microcontroller; after receiving the signal, the microcontroller sends an instruction to the second electromagnetic valve and the first electromagnetic valve through the switching value output module to open the pipeline, and water in the fuel oil system (oil conservator) is automatically discharged through the water discharge outlet. After receiving the signal of the interface sensor, the microcontroller delays for a period of time and then sends an opening instruction to the second electromagnetic valve, so that the error response of the interface sensor is avoided. And the second electromagnetic valve and the first electromagnetic valve are controlled to be opened after a small delay at intervals, so that the electromagnetic valves are prevented from being opened simultaneously, and the current is too large.
After a period of time (set), the microcontroller sends an instruction to the first electromagnetic valve and the second electromagnetic valve again through the switching value output module to control the first electromagnetic valve to be closed and stop draining water; after a delay for a (set) time, a command is sent to the second solenoid valve to control it to close in order to empty the water trapped between the first solenoid valve and the second solenoid valve. At this time, one drainage is completed.
If the inlet water is not completely discharged, the interface sensor still detects the presence of water, the interface sensor can continuously trigger the electronic switch to send a signal to the control system, the first electromagnetic valve and the second electromagnetic valve are continuously opened, and the automatic water discharging is started again; and sequentially and circularly executing until the water in the fuel oil system (oil conservator) is automatically drained completely, the interface sensor cannot detect the water, and the automatic drainage program is stopped.
The microcontroller also records the drainage times, when the drainage times are too high within a set time, the fuel oil system is judged to intake a large amount of water, the microcontroller drives the alarm lamp and the buzzer to give out sound and light alarm, a crew is prompted to perform manual intervention, and the reason for water intake is investigated.
The human-computer interface comprises a touch screen and mechanical keys; the touch screen and the microcontroller are communicated through RS 485. Frame format MODBUS-RTU in proper order. The sensor data, system state information, and operational events are stored in the memory of the touch screen. The user can check the operation data of the system through the touch screen and set the operation parameters of the system. The system integrates mechanical keys, including a self-checking key, an emission key and a silencing key; three mechanical keys are connected to the switching value input module, and when different keys are pressed, the microcontroller executes corresponding functions. When a discharge key is pressed down, the switching value input electric module sends an opening instruction to the first electromagnetic valve and the second electromagnetic valve, and the pipeline starts to drain water; when the drain button is pressed again, the first electromagnetic valve and the second electromagnetic valve are closed, and the water drainage is finished. When the self-checking button is pressed, the electromagnetic valve does not act, other functions are automatically executed once, and whether the device works normally is checked; when the silencing button is pressed down, the buzzer and the alarm lamp are turned off, and long-time sound interference is avoided.
The microcontroller detects the keys in a periodic scanning mode, so that the stability and the real-time performance of key response are ensured.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A fuel water online monitoring and automatic disposal system is characterized by comprising a microcontroller, a switching value output module, a switching value input module, a water sensor, an interface sensor, a first electromagnetic valve and a second electromagnetic valve;
an interface sensor, a first electromagnetic valve and a second electromagnetic valve are sequentially arranged in the pipeline from the interface to the water outlet; the first electromagnetic valve is lower than the interface sensor in the pipeline; under the normal state, the first electromagnetic valve and the second electromagnetic valve close the pipeline in which the first electromagnetic valve and the second electromagnetic valve are positioned; the microcontroller receives signals of the interface sensor through the switching value input module and outputs control instructions through the two electromagnetic valves of the switching value output module box;
the microcontroller is used for sending an opening instruction to the first electromagnetic valve and the second electromagnetic valve through the switching value output module after receiving the interface sensor signal through the switching value input module, and controlling the first electromagnetic valve and the second electromagnetic valve to open the pipeline respectively; after the set time, sending a closing instruction to the first electromagnetic valve and the second electromagnetic valve through the switching value output module, and controlling the first electromagnetic valve and the second electromagnetic valve to close the pipeline respectively;
the moisture sensor uploads the dielectric constant value of the oil to be detected to the microcontroller;
the microcontroller is configured to: receiving the dielectric constant of the pure oil of the oil to be measured by the water sensor, then measuring the dielectric constant of the oil to be measured with different water contents, and calculating the dielectric constant ratio of the oil to be measured with different water contents and the pure oil to obtain the corresponding relation between the water content and the dielectric constant ratio; during on-line measurement, the water sensor detects the dielectric constant of the oil in real time and sends the dielectric constant to the control system, and the microcontroller calculates the specific value of the dielectric constant measured by the water sensor and the dielectric constant of the pure oil and compares the specific value with the corresponding relation obtained by previous calibration to obtain the water content of the current oil.
2. The fuel oil water online monitoring and automatic disposal system of claim 1, wherein after receiving the interface sensor signal, the microcontroller sends an opening instruction to the second solenoid valve and the first solenoid valve first and then via the switching value output module to control the second solenoid valve and the first solenoid valve to open the pipeline.
3. The system for on-line monitoring and automatic disposal of water in fuel oil according to claim 1, wherein when the microcontroller sends a closing command to the first solenoid valve and the second solenoid valve, the first solenoid valve is controlled to close, and after a set time delay, the second solenoid valve is controlled to close.
4. The system for on-line monitoring and automatic disposal of fuel water content of claim 1, wherein said interface sensor is a type HR2111.20 force sensor.
5. The fuel oil water online monitoring and automatic disposal system of claim 1, wherein the microcontroller is further configured to record the number of water drainage times, when the number of water drainage times exceeds a set threshold value within a set time, it is determined that the fuel oil system is heavily filled with water, and the microcontroller drives the alarm lamp and the buzzer to give an audible and visual alarm to prompt a crew member to perform manual intervention to investigate the reason for the water filling.
6. The system for on-line monitoring and automatic disposal of fuel water content according to claim 1, further comprising a human-computer interface; a touch screen is arranged on the human-computer interaction interface; the touch screen is communicated with the microcontroller through RS 485; and the user checks the operation data of the system through the touch screen and sets the operation parameters of the system.
7. The fuel oil water online monitoring and automatic disposal system of claim 6, wherein the human-computer interaction interface is provided with a self-checking button; when the self-checking button is pressed, the electromagnetic valve is not removed, other functions are automatically executed once, and whether the device works normally is checked.
8. The system for on-line monitoring and automatic disposal of fuel water content as claimed in claim 6, wherein said human-computer interface is provided with a discharge button; when a discharge key is pressed down, the switching value input electric module sends an opening instruction to the first electromagnetic valve and the second electromagnetic valve, and the pipeline starts to drain water; when the drain button is pressed again, the first electromagnetic valve and the second electromagnetic valve are closed, and the water drainage is finished.
9. The system for on-line monitoring and automatic disposal of fuel water content as claimed in claim 6, wherein said human-computer interface is provided with a silencing button; when the silencing key is pressed down, a buzzer and an alarm lamp arranged in the system are turned off.
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| CN202010444024.1A CN111765002B (en) | 2020-05-22 | 2020-05-22 | Fuel oil moisture on-line monitoring and automatic processing system |
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| CN202010444024.1A CN111765002B (en) | 2020-05-22 | 2020-05-22 | Fuel oil moisture on-line monitoring and automatic processing system |
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| CN111765002B CN111765002B (en) | 2022-05-31 |
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| CN113266620A (en) * | 2021-06-01 | 2021-08-17 | 三一重机有限公司 | Filtering method for hydraulic system, hydraulic system and working machine |
| CN113404594A (en) * | 2021-07-23 | 2021-09-17 | 孚创动力控制技术（启东）有限公司 | Intelligent monitoring system and method for power equipment |
| CN114165326A (en) * | 2021-07-15 | 2022-03-11 | 孚创动力控制技术（启东）有限公司 | Intelligent power maintenance system and maintenance method |
| CN114324829A (en) * | 2021-12-31 | 2022-04-12 | 四川德胜集团钒钛有限公司 | Lubricant management system for metallurgical production line |
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| CN113266620B (en) * | 2021-06-01 | 2024-04-23 | 三一重机有限公司 | Filtering method of hydraulic system, hydraulic system and working machine |
| CN114165326A (en) * | 2021-07-15 | 2022-03-11 | 孚创动力控制技术（启东）有限公司 | Intelligent power maintenance system and maintenance method |
| CN113404594A (en) * | 2021-07-23 | 2021-09-17 | 孚创动力控制技术（启东）有限公司 | Intelligent monitoring system and method for power equipment |
| CN114324829A (en) * | 2021-12-31 | 2022-04-12 | 四川德胜集团钒钛有限公司 | Lubricant management system for metallurgical production line |
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