CN205246514U - Distributing type diesel engine crankcase oil mist concentration monitoring alarm device - Google Patents
Distributing type diesel engine crankcase oil mist concentration monitoring alarm device Download PDFInfo
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- CN205246514U CN205246514U CN201521085048.3U CN201521085048U CN205246514U CN 205246514 U CN205246514 U CN 205246514U CN 201521085048 U CN201521085048 U CN 201521085048U CN 205246514 U CN205246514 U CN 205246514U
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- oil mist
- mist concentration
- diesel engine
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- engine crankcase
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Abstract
The utility model discloses a distributing type diesel engine crankcase oil mist concentration monitoring alarm device, including central controller, display, bus communication module, a warning circuit and a plurality of oil mist concentration detection device. Each oil mist concentration detection device includes oil mist consistency transmitter, rotatory dial switch, microprocessor, RS485 serial ports and the 2nd warning circuit. Oil mist consistency transmitter and rotatory dial switch's output is connected with microprocessor's first and second inputs electricity respectively, and microprocessor's output and the 2nd warning circuit electricity are connected, the RS485 serial ports is connected with the two -way electricity of microprocessor to through RS485 bus and central controller communication. Central controller's first and second outputs are connected with a warning circuit and display electricity respectively, and the bus communication module is connected with the two -way electricity of central controller. The utility model discloses still can normally work when central controller breaks down, make the diesel engine operation safer.
Description
Technical field
The utility model relates to diesel engine crankcase oil mist concentration monitoring alarm.
Background technology
The security of diesel engine is the important indicator of weighing diesel engine performance. Because bearing shell is overheated, or the too high meeting of oil density in crankcase that mechanical breakdown produces causes crankcase explosion and causes serious security incident. Along with scientific and technological progress, sensitivity, response speed, the digitlization of user to diesel engine mist of oil sensor had higher requirement. At present, the diesel engine crankcase oil mist concentration monitoring alarm on market comprises the central controller in the other position of the machine that is arranged on or central station of floating dock and is arranged on the multiple oil mist concentration sensors in diesel engine crankcase. The oil mist concentration signal detecting is sent to central controller by multiple oil mist concentration sensors, central controller judges whether the oil mist concentration detecting exceeds normal range (NR), if exceed normal range (NR), send alert notice signal by communication bus to Monitor and Alarm System for Ship Engine Room, Monitor and Alarm System for Ship Engine Room can be sent alarm signal to engine hand after receiving this alert notice signal. In existing diesel engine crankcase oil mist concentration monitoring alarm, whether the detection signal of all oil mist concentration sensors exceeds normal range (NR) judges by central controller, once central controller sends fault, whole diesel engine crankcase oil mist concentration monitoring alarm cannot normally be worked, thereby cause the safety in operation of diesel engine greatly to reduce.
In addition, the multiplex single-chip microcomputer of master controller of existing diesel engine crankcase oil mist concentration monitoring alarm is as control core, and response speed is slow, function singleness. The oil mist concentration sensor of existing employing scattering method generally uses common LED lamp as detection light source, produce the wavelength of light beam at 550nm between 600nm, and the photronic optimal response wavelength of oil mist concentration sensor is in 900nm left and right, so can not well mate the sensitiveest photronic response wave length.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of still can normally work, make the distributed diesel engine crankcase oil mist concentration monitoring alarm of diesel engine security of operation in the time that central controller breaks down.
Another technical problem to be solved in the utility model is to provide a kind of oil mist concentration to detect fast response time, distributed diesel engine crankcase oil mist concentration monitoring alarm that precision is high.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is:
Distributed diesel engine crankcase oil mist concentration monitoring alarm, comprises central controller, display, bus communication module, the first warning circuit and is arranged on the multiple oil mist concentration checkout gears in diesel engine crankcase; Each oil mist concentration checkout gear comprises oil mist concentration sensor, rotation toggle switch, microprocessor, RS485 serial ports and the second warning circuit; The output of described oil mist concentration sensor is electrically connected with the first input end of described microprocessor, and the rotation output of toggle switch and the second input of microprocessor are electrically connected, and the output of microprocessor is electrically connected with the input of the second warning circuit; RS485 serial ports is electrically connected with microprocessor is two-way, and by RS485 bus and central controller communication connection; The first output of central controller is electrically connected with the input of the first warning circuit, and the second output of central controller is electrically connected with display, and bus communication module is electrically connected with central controller is two-way.
Adopt after technique scheme, the utility model at least has the following advantages and feature:
1, the utlity model has distribution and be arranged on the multiple oil mist concentration checkout gears in diesel engine crankcase, each oil mist concentration checkout gear carries oil mist concentration sensor and microprocessor. When the oil mist concentration detecting when oil mist concentration sensor exceeds normality threshold default in microprocessor, microprocessor is driving the second warning circuit alarm directly. Like this, even if central controller breaks down, can not cause whole diesel engine crankcase oil mist concentration monitoring alarm normally to work yet, thereby improve the safety in operation of diesel engine;
2, the microprocessor in central controller of the present utility model and oil mist concentration checkout gear has all adopted ARM microprocessor, can accurately monitor diesel engine crankcase oil mist concentration, and acquisition precision is high, response speed piece;
3, the utility model can be applied to the diesel engine of two 16 cylinders simultaneously, installs simply, can be applied to two diesel engines with same display simultaneously, has saved cost;
4, oil mist concentration sensor of the present utility model adopts infrared LED lamp as detection light source, the light wavelength producing is 800nm, more approach the photronic optimal response wavelength of oil mist concentration sensor, so photronic sensitivity is more increased, it is more accurate to make to measure.
Brief description of the drawings
Fig. 1 is according to the theory diagram of the distributed diesel engine crankcase oil mist concentration monitoring alarm of the utility model one embodiment.
Fig. 2 is according to the theory diagram of the oil mist concentration checkout gear of the utility model one embodiment.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Refer to Fig. 1. According to the distributed diesel engine crankcase oil mist concentration monitoring alarm of the utility model one embodiment, comprise central controller 1, display 2, bus communication module 3, the first warning circuit 4 and be arranged on the multiple oil mist concentration checkout gears 5 in diesel engine crankcase 9.
Please refer to Fig. 2. Each oil mist concentration checkout gear 5 comprises oil mist concentration sensor 51, rotation toggle switch 52, microprocessor 53, RS485 serial ports 54 and the second warning circuit 55. The output of oil mist concentration sensor 51 is electrically connected with the first input end of microprocessor 53, and the rotation output of toggle switch 52 and the second input of microprocessor 53 are electrically connected, and the output of microprocessor 53 is electrically connected with the input of the second warning circuit 55; RS485 serial ports 54 is electrically connected with microprocessor is two-way, and communicates to connect by RS485 bus and central controller 1. Oil mist concentration checkout gear 5 is arranged on the bottom of crankcase, by rotation toggle switch 52, address is set, and different oil mist concentration checkout gears 5 can arrange different addresses. Can arrange according to different diesel engines the oil mist concentration checkout gear 5 of varying number. In the present embodiment, the detection light source of oil mist concentration sensor is infrared LED lamp, and the light wavelength of its generation is 800nm, more approaches the photronic optimal response wavelength of oil mist concentration sensor, so photronic sensitivity is more increased, certainty of measurement is improved.
The first output of central controller 1 is electrically connected with the input of the first warning circuit 4, and the second output of central controller 1 is electrically connected with display 2, and bus communication module 3 is electrically connected with central controller 1 is two-way. In the present embodiment, bus communication module is CAN communication module, for realizing communicating by letter between the detection alarm system of cabin. Central controller 1 and microprocessor 53 are ARM microprocessor, compared with single-chip microcomputer, adopt ARM microprocessor can improve the response speed of detection. The first warning circuit 4 is sound light alarming circuit, and the second above-mentioned warning circuit comprises light emitting diode.
Preferably, also comprise switching value output circuit 6 and memory 7 according to the distributed diesel engine crankcase oil mist concentration monitoring alarm of the utility model one embodiment. The input of switching value output circuit 6 is electrically connected with the 3rd output of central controller 1, and the output of switching value output circuit 6 can connect diesel engine emergent stopping magnetic valve, so as in the time that oil mist concentration to exceed predefined normality threshold reduction of speed and stopping in emergency. Memory 7 is electrically connected with central controller 1 is two-way. Memory 7 can adopt the flash memory of 128MB, can record the historical data that oil mist concentration detects, and facilitates diesel engine maintainer to call for diesel engine state analysis.
In the present embodiment, microprocessor 53 presets the normality threshold of oil mist concentration. When the oil mist concentration detecting when oil mist concentration sensor 51 exceeds default normality threshold, microprocessor 53 can directly drive the lumination of light emitting diode of the second warning circuit 55 to glimmer. Like this, even if central controller sends fault, can not cause whole diesel engine crankcase oil mist concentration monitoring alarm normally to work yet, thereby improve the safety in operation of diesel engine. Central controller 1 is arranged at the other position of machine or central station of floating dock. Oil mist concentration checkout gear 5 sends to central controller by RS485 bus by the address information of testing result and this oil mist concentration checkout gear 5, thereby makes display 2 can show intuitively the current oil mist concentration of each crankcase. In central controller 1, be also set with the normality threshold of above-mentioned oil mist concentration, in the time that oil mist concentration exceedes normality threshold, can drive the first warning circuit 4 to send sound and light alarm, go back controllable switch amount output circuit 6 to diesel engine emergent stopping magnetic valve output switch amount signal, with the object that reaches reduction of speed and stop in emergency simultaneously. On the other hand, central controller 1 can also send to other monitoring systems such as Monitor and Alarm System for Ship Engine Room the oil mist concentration and the alarm signal that collect by CAN bus communication module.
In a concrete application example, the utility model is applied to two eight cylinder diesels on certain large ship, monitors the oil density in crankcase of two diesel engines simultaneously. In every diesel engine, be provided with eight oil mist concentration checkout gears 5. Display 2 can show the concentration of each crankcase of two diesel engines simultaneously, response rapidly, be 0.5s update time, sensitivity can reach 0.1mg/L, in the time that oil mist concentration exceedes normality threshold, the first warning circuit 4 can send sound and light alarm, and the indicator lamp of the second warning circuit 55 also can send red flare.
More than describe is further illustrating of the utility model being done in conjunction with detailed description of the invention and accompanying drawing. But; the utility model obviously can be implemented with multiple other method that is different from this description; those skilled in the art can promote, deduce according to actual service condition without prejudice to the utility model content in the situation that; therefore, the content of above-mentioned specific embodiment should not limit the definite protection domain of the utility model.
Claims (8)
1. distributed diesel engine crankcase oil mist concentration monitoring alarm, is characterized in that, comprises central controller, display, bus communication module, the first warning circuit and is arranged on the multiple oil mist concentration checkout gears in diesel engine crankcase;
Each oil mist concentration checkout gear comprises oil mist concentration sensor, rotation toggle switch, microprocessor, RS485 serial ports and the second warning circuit; The output of described oil mist concentration sensor is electrically connected with the first input end of described microprocessor, the output of described rotation toggle switch is electrically connected with the second input of described microprocessor, and the output of described microprocessor is electrically connected with the input of described the second warning circuit; Described RS485 serial ports is electrically connected with described microprocessor is two-way, and by RS485 bus and the communication connection of described central controller;
The first output of described central controller is electrically connected with the input of described the first warning circuit, and the second output of described central controller is electrically connected with described display, and described bus communication module is electrically connected with described central controller is two-way.
2. distributed diesel engine crankcase oil mist concentration monitoring alarm according to claim 1, is characterized in that, described central controller and described microprocessor are ARM microprocessor.
3. distributed diesel engine crankcase oil mist concentration monitoring alarm according to claim 1, is characterized in that, described bus communication module is CAN communication module.
4. according to the distributed diesel engine crankcase oil mist concentration monitoring alarm described in claim 1 or 3, it is characterized in that, described multiple oil mist concentration checkout gears are separately positioned in the diesel engine crankcase of two diesel engines.
5. distributed diesel engine crankcase oil mist concentration monitoring alarm according to claim 1, it is characterized in that, described distributed diesel engine crankcase oil mist concentration monitoring alarm comprises switching value output circuit, and the input of described switching value output circuit is electrically connected with the 3rd output of described central controller.
6. distributed diesel engine crankcase oil mist concentration monitoring alarm according to claim 1, it is characterized in that, described distributed diesel engine crankcase oil mist concentration monitoring alarm comprises memory, and described memory is electrically connected with described central controller is two-way.
7. distributed diesel engine crankcase oil mist concentration monitoring alarm according to claim 1, is characterized in that, the first described warning circuit is sound light alarming circuit, and the second described warning circuit comprises light emitting diode.
8. distributed diesel engine crankcase oil mist concentration monitoring alarm according to claim 1, is characterized in that, the detection light source of described oil mist concentration sensor is infrared LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521085048.3U CN205246514U (en) | 2015-12-23 | 2015-12-23 | Distributing type diesel engine crankcase oil mist concentration monitoring alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521085048.3U CN205246514U (en) | 2015-12-23 | 2015-12-23 | Distributing type diesel engine crankcase oil mist concentration monitoring alarm device |
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| CN205246514U true CN205246514U (en) | 2016-05-18 |
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| CN201521085048.3U Active CN205246514U (en) | 2015-12-23 | 2015-12-23 | Distributing type diesel engine crankcase oil mist concentration monitoring alarm device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954040A (en) * | 2017-02-28 | 2017-07-14 | 中国船舶重工集团公司第七研究所 | The method of the fault diagnosis of marine diesel, apparatus and system |
| CN107807616A (en) * | 2016-09-09 | 2018-03-16 | 发那科株式会社 | Oil mist concentration managing device, mist of oil management system and mist of oil management method |
| CN113281111A (en) * | 2021-05-20 | 2021-08-20 | 中国船舶重工集团公司第七一一研究所 | Safe explosion-proof detection device and system |
| CN113356963A (en) * | 2021-06-30 | 2021-09-07 | 河南柴油机重工有限责任公司 | Explosion-proof method and device for crankcase of gas fuel internal combustion engine |
-
2015
- 2015-12-23 CN CN201521085048.3U patent/CN205246514U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807616A (en) * | 2016-09-09 | 2018-03-16 | 发那科株式会社 | Oil mist concentration managing device, mist of oil management system and mist of oil management method |
| CN107807616B (en) * | 2016-09-09 | 2020-05-15 | 发那科株式会社 | Oil mist concentration management device, oil mist management system, and oil mist management method |
| CN106954040A (en) * | 2017-02-28 | 2017-07-14 | 中国船舶重工集团公司第七研究所 | The method of the fault diagnosis of marine diesel, apparatus and system |
| CN113281111A (en) * | 2021-05-20 | 2021-08-20 | 中国船舶重工集团公司第七一一研究所 | Safe explosion-proof detection device and system |
| CN113356963A (en) * | 2021-06-30 | 2021-09-07 | 河南柴油机重工有限责任公司 | Explosion-proof method and device for crankcase of gas fuel internal combustion engine |
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Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee after: The 711 Research Institute of China Shipbuilding Corp. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: Shanghai Marine Diesel Engine Research Institute |