CN103899452A - Method for monitoring air filter of diesel engine applicable to plateau and locomotive applicable to plateau - Google Patents
Method for monitoring air filter of diesel engine applicable to plateau and locomotive applicable to plateau Download PDFInfo
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- CN103899452A CN103899452A CN201410155406.7A CN201410155406A CN103899452A CN 103899452 A CN103899452 A CN 103899452A CN 201410155406 A CN201410155406 A CN 201410155406A CN 103899452 A CN103899452 A CN 103899452A
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- air
- pressure
- plateau
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- filter element
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- Combined Controls Of Internal Combustion Engines (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a locomotive applicable to a plateau and a method for monitoring an air filter of a diesel engine applicable to the plateau. The method comprises the steps that two pressure sensors are installed on an air inlet and an air outlet of the air filter respectively; three control pressure thresholds PT1, PT2 and PT3 are set, wherein PT1<PT2<PT3; a microcomputer control system detects the pressure P1 of the air inlet of the air filter and the pressure P2 of the air outlet of the air filter through the pressure sensors; the pressure difference PD is calculated, wherein PD=P1-P2; when the condition PT1<=PD<PT2 is met, an alarm is given to remind that a filter element is contaminated, and the filter element should be replaced; when the condition PT2<=PD<PT3 is met, the speed and the power of the diesel engine are reduced, and an alarm is given to remind a worker to replace the filter element; when the condition PT3<=PD is met, the diesel engine is shut down, and an alarm is given to remind the worker to replace the filter element. The use conditions of the filter element can be learnt about through a microcomputer display screen in a cab, the serious consequences that combustion of the diesel engine is poor or the cylinder score phenomenon happens due to the fact that the filter element is not replaced in time can be avoided through three-level protection control, maintenance of the filter element of the air filter is facilitated, and the filter element of the air filter does not need to be examined on the site regularly.
Description
Technical field
The present invention relates to a kind of diesel air air filter monitoring method and railway locomotive that is applicable to plateau, belong to railway locomotive technical field.
Background technique
The wearing and tearing of the component such as Locomotive Engine Cylinder, piston ring, valve, except the material of component itself and the influence factor of manufacture process, also relevant with the air purification quality that enters burning chamber of diesel engine to a great extent.China is vast in territory, and the difference of air purification quality and dust loading thereof is very large, at northwest and dust storm area dust content of air generally than the high 290-500 of dust loading coastal, plains region doubly.In air, sand and dust content is high.In order to ensure to enter the air cleaning of diesel engine, air-strainer need to be installed before pressurized machine.
Existing air-strainer is generally provided with mechanical dirty indicator, and detecting air-strainer outlet is the air pressure of pressurized machine ingress.In the time that air pressure herein reaches certain numerical value, the indicating arm of dirty indicator is moved to red section, illustrates that air cleaner cartridge is dirty, need to change in time.Whether utilization department need to irregularly check dirty, if do not change for a long time filter element, filter core can be dirty, and the resistance of pressurized machine air inlet can increase, and causes diesel combustion bad, affects the utilization of diesel engine.When situation is serious, filter element can lose efficacy, and dust granule enters pressurized machine, causes the phenomenon of diesel engine scuffing of cylinder bore, affects the normal operation of locomotive.
Summary of the invention
Object of the present invention overcomes the deficiency of above-mentioned prior art exactly, and a kind of diesel air air filter monitoring method and railway locomotive that is applicable to plateau is provided.
The object of the present invention is achieved like this: a kind of diesel air air filter monitoring method that is applicable to plateau, take the following step:
1. at air-strainer suction port and air outlet, a pressure transducer is installed respectively, the output signal access Control System of Microcomputer of two pressure transducers;
2. set three pilot pressure threshold value: P
t1﹤ P
t2﹤ P
t3;
3. Control System of Microcomputer detects air-strainer suction port pressure P 1 and air outlet pressure P 2 by two pressure transducers;
4. calculating pressure is poor: P
d=P1-P2;
5.P
t1≤ P
d﹤ P
t2time, alarm filter element is dirty, should give replacing;
6.P
t2≤ P
d﹤ P
t3time, reduce diesel speed and power more renew cartridge of alarm;
7.P
t3≤ P
dtime, more renew cartridge of diesel engine stop alarm.
In order to realize better object of the present invention, three pilot pressure threshold value values are respectively: P
t1=3.5kPa, P
t2=4.8kPa, P
t3=5.5kPa.
Be applicable to the railway locomotive on plateau, adopt above-mentioned diesel air air filter monitoring method.
The solution of the present invention; can recognize the behaviour in service of filter core by the computer display of driver's cab; three-level protective control can be avoided because diesel combustion that in time more renew cartridge brings is bad or the serious consequence such as scuffing of cylinder bore; facilitate the maintaining to air cleaner cartridge, checked filter element without regular scene.
Brief description of the drawings
Fig. 1 is the principle schematic of the embodiment of the present invention.
In figure, be labeled as: P1-air-strainer suction port pressure, P2-air-strainer air outlet pressure, P
dthe pressure difference of-air-strainer suction port and air outlet.
Embodiment
For making object, technological scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, the diesel air air filter monitoring method of the present embodiment, a pressure transducer of each installation on air inlet on air filter for diesel engine housing and air outlet, two pressure transducers are monitored respectively air-strainer suction port pressure P 1 and air outlet pressure P 2.The output signal of two pressure transducers accesses Control System of Microcomputer by cable.In Control System of Microcomputer, set three pilot pressure threshold value: P
t1=3.5kPa, P
t2=4.8kPa, P
t3=5.5kPa.Calculate the pressure difference of air-strainer suction port and air outlet: P
d=P1-P2.Work as P
t1≤ P
d﹤ P
t2time, illustrating that filter element is dirty, microcomputer alarm filter element is dirty, should give replacing.P
t2≤ P
d﹤ P
t3time, Control System of Microcomputer reduces diesel speed and power, and more renew cartridge of alarm.P
t3≤ P
dtime, Control System of Microcomputer makes diesel engine stop, and more renew cartridge of alarm.
Finally it should be noted that: above embodiment only, in order to technological scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technological scheme that still can record aforementioned each embodiment is modified, or part technical characteristics is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (3)
1. a diesel air air filter monitoring method that is applicable to plateau, is characterized in that: take the following step:
A. at air-strainer suction port and air outlet, a pressure transducer is installed respectively, the output signal access Control System of Microcomputer of two pressure transducers;
B. set three pilot pressure threshold value: P
t1﹤ P
t2﹤ P
t3;
C. Control System of Microcomputer detects air-strainer suction port pressure P 1 and air outlet pressure P 2 by two pressure transducers;
D. calculating pressure is poor: P
d=P1-P2;
E.P
t1≤ P
d﹤ P
t2time, alarm filter element is dirty, should give replacing;
F.P
t2≤ P
d﹤ P
t3time, reduce diesel speed and power more renew cartridge of alarm;
G.P
t3≤ P
dtime, more renew cartridge of diesel engine stop alarm.
2. the diesel air air filter monitoring method that is applicable to plateau according to claim 1, is characterized in that: described three pilot pressure threshold value values are respectively: P
t1=3.5kPa, P
t2=4.8kPa, P
t3=5.5kPa.
3. a railway locomotive that is applicable to plateau, is characterized in that: diesel air air filter monitoring method described in employing claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155406.7A CN103899452A (en) | 2014-04-17 | 2014-04-17 | Method for monitoring air filter of diesel engine applicable to plateau and locomotive applicable to plateau |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155406.7A CN103899452A (en) | 2014-04-17 | 2014-04-17 | Method for monitoring air filter of diesel engine applicable to plateau and locomotive applicable to plateau |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103899452A true CN103899452A (en) | 2014-07-02 |
Family
ID=50990986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410155406.7A Pending CN103899452A (en) | 2014-04-17 | 2014-04-17 | Method for monitoring air filter of diesel engine applicable to plateau and locomotive applicable to plateau |
Country Status (1)
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| CN (1) | CN103899452A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454263A (en) * | 2014-12-25 | 2015-03-25 | 济南泉工机械有限公司 | Air filter system for engineering machines |
| CN107642423A (en) * | 2016-07-21 | 2018-01-30 | 福特环球技术公司 | For controlling the accessory system and method for engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06341356A (en) * | 1993-06-01 | 1994-12-13 | Ishikawajima Harima Heavy Ind Co Ltd | Demister device |
| JP2513235B2 (en) * | 1987-06-19 | 1996-07-03 | 日本電装株式会社 | Clogging detection device for air cleaner for internal combustion engine |
| CN102003246A (en) * | 2010-10-28 | 2011-04-06 | 李从胜 | Filter seat |
| CN202187841U (en) * | 2011-07-28 | 2012-04-11 | 北京联飞翔科技股份有限公司 | Air filter assembly |
-
2014
- 2014-04-17 CN CN201410155406.7A patent/CN103899452A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2513235B2 (en) * | 1987-06-19 | 1996-07-03 | 日本電装株式会社 | Clogging detection device for air cleaner for internal combustion engine |
| JPH06341356A (en) * | 1993-06-01 | 1994-12-13 | Ishikawajima Harima Heavy Ind Co Ltd | Demister device |
| CN102003246A (en) * | 2010-10-28 | 2011-04-06 | 李从胜 | Filter seat |
| CN202187841U (en) * | 2011-07-28 | 2012-04-11 | 北京联飞翔科技股份有限公司 | Air filter assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454263A (en) * | 2014-12-25 | 2015-03-25 | 济南泉工机械有限公司 | Air filter system for engineering machines |
| CN107642423A (en) * | 2016-07-21 | 2018-01-30 | 福特环球技术公司 | For controlling the accessory system and method for engine |
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Application publication date: 20140702 |