CN205089489U - Marine diesel's air intake system - Google Patents
Marine diesel's air intake system Download PDFInfo
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- CN205089489U CN205089489U CN201520905890.0U CN201520905890U CN205089489U CN 205089489 U CN205089489 U CN 205089489U CN 201520905890 U CN201520905890 U CN 201520905890U CN 205089489 U CN205089489 U CN 205089489U
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- diesel engine
- water smoke
- handling system
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- marine diesel
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Abstract
The utility model discloses a marine diesel's air intake system, it includes: water smoke generating device, its nozzle extend to the exit end department of the intake pipe of diesel engine through the pipeline, this water smoke generating device is equipped with the regulating switch who adjusts water smoke and generate intensity, regulating switch is connected through the throttle handle of drive component with the diesel engine, by the throttle handle drive the drive component is with control regulating switch's opening degree, thereby control water smoke generating device is past carry out the spraying of different intensity in the intake pipe. This air intake system utilizes water smoke and air mixing as the admitting air of cylinder, and water smoke can effectively reduce the combustion temperature in the diesel engine cylinder, restraines oxynitrides NOx's formation speed, reduces oxynitrides NOx's formation volume to reduce oxynitrides NOx's emission.
Description
Technical field
The utility model relates to diesel engine air inlet system, particularly a kind of gas handling system of marine diesel engine.
Background technique
As everyone knows, during diesel engine work, air inlet is normally directly taken to the air in air, for charge inter cooling type, then needs first through the supercharging of pressurized machine, then enter suction tude after the cooling of intercooler, finally enter cylinder.
Diesel engine in the course of the work, because the temperature and pressure in cylinder is higher, the a large amount of oxynitrides NOx of easy generation, because associated emissions regulation has strict demand to oxynitrides NOx, so occurred adopting the mode such as EGR EGR or SCR selective catalytic reduction to control the discharge of oxynitrides NOx.Particularly adopt the cost of SCR selective catalytic reduction scheme very high, add the user cost of user, after using certain hour, will occur that catalyzer reduces and Problem of Failure and cause reducing the ability of exhaust after-treatment; Meanwhile, the use that EGR EGR scheme is only confined to medium and small power diesel engine is applied.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Model utility content
The purpose of this utility model is the gas handling system providing a kind of marine diesel engine, thus the catalyzer overcoming existing employing SCR selective catalytic reduction scheme occurs after a certain period of use time reducing and losing efficacy and causes the shortcoming that reduces the ability of exhaust after-treatment.
For achieving the above object, the utility model provides a kind of gas handling system of marine diesel engine, comprise: water fog generator, its nozzle extends to the outlet end place of the suction tude of diesel engine by pipeline, this water fog generator is provided with the by-pass cock regulating water smoke to generate intensity, described by-pass cock is connected with the throttle control handle of diesel engine by driving component, drive described driving component to control the opening degree of described by-pass cock by described throttle control handle, thus control the spraying that described water fog generator carries out varying strength in described suction tude.
Preferably, in technique scheme, described suction tude is connected with the intake duct of the cylinder head of diesel engine.
Preferably, in technique scheme, described by-pass cock is knob.
Preferably, in technique scheme, described driving component comprises: helical spring, and it is for being limited in initial position by described knob; And bracing wire, one end of this bracing wire is fixedly wound on described knob, and the other end is fixedly connected with described throttle control handle; When straining described throttle control handle, described bracing wire drives described knob to rotate toward opening direction, and when loosening described throttle control handle, described helical spring drives described knob to reset toward closing direction.
Preferably, in technique scheme, described pipeline extends to the outlet end place of described suction tude by water smoke jet pipe.
Preferably, in technique scheme, described water fog generator is ultrasonic-wave water-atomization generating means or ultrasound alkaline water mist generation device.
Compared with prior art, the utility model has following beneficial effect:
1. the utility model utilizes water smoke and air mixing as the air inlet of cylinder, water smoke effectively can reduce the combustion temperature in cylinder of diesel engine, suppress the generating rate of oxynitrides NOx, reduce the growing amount of oxynitrides NOx, thus reduce the discharge of oxynitrides NOx.
2. water fog generator of the present utility model adopts ultrasonic-wave water-atomization generating means, and the water fog particle degree produced by it is little, and dispersed in cloud, can with diesel engine intake Homogeneous phase mixing, all not easily produce state of aggregation water droplet from air inlet to combustion phase.
3. the water smoke sprayed in the utility model effectively can not only reduce the temperature of gas of combustion, reduce the heat load impact of parts and components of diesel engine, such as on the heat load of the component such as valve, seat ring, cylinder cover bottom surface, piston crown, outlet pipe, pressurized machine impact, and water smoke can by sharply heating and gasifying under High Temperature High Pressure effect in cylinder, rapid spatial expansion after gasification, and acting effect is produced to piston, promote the fuel economy of diesel engine.
4. in the utility model, the alkaline water smoke of ultrasound alkaline water mist generation device ejection can reduce content of acid gas in waste gas further, reduces acid waste gas and enters impact on machine oil acid-base equilibrium degree after crankcase, extend machine oil life cycle.
5. water smoke generating apparatus of the present utility model is controlled the growing amount of water smoke by the throttle control handle of diesel injection pump, can meet the water smoke content that diesel engine participates in mixing under any load.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gas handling system according to marine diesel engine of the present utility model.
Main Reference Numerals illustrates:
1-cylinder head, 11-intake duct, 12-intake valve, 2-suction tude, 3-cylinder, 4-water smoke generating apparatus, 41-pipeline, 42-knob, 43-helical spring, 44-bracing wire, 5-piston.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
Fig. 1 shows the structural representation of the gas handling system of the marine diesel engine according to the utility model preferred implementation.As shown in Figure 1, show partial cylinders component and the gas handling system of diesel engine, wherein, this gas handling system comprises: cylinder head 1, suction tude 2, driving component and water smoke generating apparatus 4; Cylinder head 1 includes intake duct 11 and is used to open or close the intake valve 12 of intake duct 11; Suction tude 2 is connected with the intake duct 11 of the cylinder head 1 of diesel engine, and the nozzle of water fog generator 4 extends to the outlet end place of the suction tude 2 of diesel engine by pipeline 41, and is provided with water smoke jet pipe in the outlet port of pipeline 41; On the one hand, this water fog generator 4 can select ultrasonic-wave water-atomization generating means, by its produce water fog particle degree little, and in cloud dispersed, can with diesel engine intake Homogeneous phase mixing, all not easily produce state of aggregation water droplet from air inlet to combustion phase.On the other hand, this water fog generator 4 can select ultrasound alkaline water mist generation device, be in ultrasonic-wave water-atomization generating means and can be blended into a certain amount of sodium carbonate or other soluble alkali materials and blend into the solution with alkalescence, because diesel combustion product is based on acidic materials, so its alkaline water smoke produced will contribute to after entering cylinder in the acid waste gas such as oxynitrides NOx, and after can effectively suppressing acid waste gas to infiltrate crankcase, destroy the acid-base equilibrium degree of machine oil.Wherein, this water fog generator 4 is provided with the by-pass cock regulating water smoke to generate intensity, by-pass cock is connected by the throttle control handle of driving component with the oil feed pump of diesel engine, drive driving component with the opening degree of regulating and controlling switch by throttle control handle, thus control the spraying that water fog generator carries out varying strength in suction tude.This gas handling system utilizes water smoke and air mixing as the air inlet of cylinder, water smoke effectively can reduce the combustion temperature in cylinder of diesel engine, suppress the generating rate of oxynitrides NOx, reduce the growing amount of oxynitrides NOx, thus reduce the discharge of oxynitrides NOx.
Continue with reference to figure 1, as a kind of decision design in the present embodiment, knob 42 selected by by-pass cock, and driving component comprises helical spring 43 and bracing wire 44, and helical spring 43 is for being limited in initial position by knob 42; One end of bracing wire 44 is fixedly wound on knob 42, and the other end is fixedly connected with throttle control handle; Original state, knob 42 is identical with the initial position of throttle control handle, and when straining throttle control handle, the fuel injection quantity of Injection Pump increases, and the acting ability of diesel engine promotes thereupon, and bracing wire 44 simultaneously drives knob 42 to rotate to increasing aperture direction, strengthens water smoke growing amount; When loosening tension throttle control handle, the fuel injection quantity of Injection Pump reduces, diesel engine acting ability decreases, bracing wire 44 simultaneously drives knob 42 opposite spin under reset helical spring 43 acts on, water smoke growing amount also reduces thereupon, avoids that water smoke production is excessive causes insufficient problem of catching fire or burn.But it is to be understood that this is not for limiting the utility model, those skilled in the art can select suitable existing by-pass cock and driving component to coordinate the oxygen-supplying amount regulating water fog generator according to actual conditions.
Below, set forth to adopt the working procedure of ultrasonic-wave water-atomization generating means to the gas handling system in the present embodiment, when the engine operates, ultrasonic-wave water-atomization generating means 4 can produce dispersed, and the cloud water smoke that granularity is very little, enter in intake duct 11 by water smoke jet pipe, when piston 5 is descending, intake valve 12 moves downward to be opened, then water smoke enters in the cylinder 3 of diesel engine together with charge air flow, homodisperse water smoke, fully mix further with the fresh air entering cylinder 3 under intake swirl effect, when piston 5 is upwards run by lower dead center, intake valve 12 is closed, when piston 5 is close to top dead center, the oil sprayer of diesel engine will spray into atomized fuel in cylinder, fuel oil after atomization is by compression ignite, produce high-temperature high-pressure fuel gas promotion piston 5 thereupon and move downward acting, and the mixed gas in cylinder 3 includes the larger water smoke of specific heat capacity, because the heat of combustion gas in cylinder 3 is higher, water smoke can be vaporized in very short time, rapid spatial expansion, and participate in promoting piston acting, and the burning finishing temperature that can reduce in cylinder 3, because the formation condition of oxynitrides NOx is high-temperature oxygen-enriched, so after temperature reduces, the growing amount of oxynitrides NOx will reduce thereupon, and the heat load impact of parts and components of diesel engine can be reduced, such as right: valve, seat ring, cylinder cover bottom surface, piston crown, outlet pipe, the heat load impact of the component such as pressurized machine.
To sum up, the utility model can reduce Diesel NOx discharge, and reduce delivery temperature, improve in-cylinder combustion pressure rate of change, reduce the discharge of diesel engine, improve Economy and combustion process, and it is simple and compact for structure, change little, practical to existing structure, be convenient to the advantage installed and promote the use of.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (6)
1. a gas handling system for marine diesel engine, is characterized in that, comprising:
Water fog generator, its nozzle extends to the outlet end place of the suction tude of diesel engine by pipeline, this water fog generator is provided with the by-pass cock regulating water smoke to generate intensity, described by-pass cock is connected with the throttle control handle of diesel engine by driving component, drive described driving component to control the opening degree of described by-pass cock by described throttle control handle, thus control the spraying that described water fog generator carries out varying strength in described suction tude.
2. the gas handling system of marine diesel engine according to claim 1, is characterized in that, described suction tude is connected with the intake duct of the cylinder head of diesel engine.
3. the gas handling system of marine diesel engine according to claim 1, is characterized in that, described by-pass cock is knob.
4. the gas handling system of marine diesel engine according to claim 3, is characterized in that, described driving component comprises:
Helical spring, it is for being limited in initial position by described knob; And
Bracing wire, one end of this bracing wire is fixedly wound on described knob, and the other end is fixedly connected with described throttle control handle; When straining described throttle control handle, described bracing wire drives described knob to rotate toward opening direction, and when loosening described throttle control handle, described helical spring drives described knob to reset toward closing direction.
5. the gas handling system of marine diesel engine according to claim 1, is characterized in that, described pipeline extends to the outlet end place of described suction tude by water smoke jet pipe.
6. the gas handling system of marine diesel engine according to claim 1, is characterized in that, described water fog generator is ultrasonic-wave water-atomization generating means or ultrasound alkaline water mist generation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905890.0U CN205089489U (en) | 2015-11-13 | 2015-11-13 | Marine diesel's air intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905890.0U CN205089489U (en) | 2015-11-13 | 2015-11-13 | Marine diesel's air intake system |
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| Publication Number | Publication Date |
|---|---|
| CN205089489U true CN205089489U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520905890.0U Active CN205089489U (en) | 2015-11-13 | 2015-11-13 | Marine diesel's air intake system |
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| CN (1) | CN205089489U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257431A (en) * | 2015-11-13 | 2016-01-20 | 广西玉柴机器股份有限公司 | Air intake system of marine diesel engine |
| CN105649823A (en) * | 2016-04-13 | 2016-06-08 | 陈国才 | Water mist spraying device |
-
2015
- 2015-11-13 CN CN201520905890.0U patent/CN205089489U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257431A (en) * | 2015-11-13 | 2016-01-20 | 广西玉柴机器股份有限公司 | Air intake system of marine diesel engine |
| CN105649823A (en) * | 2016-04-13 | 2016-06-08 | 陈国才 | Water mist spraying device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230111 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |