CN102937043B - A kind of EGR water filtering tank and Water straining type gas recirculation system - Google Patents
A kind of EGR water filtering tank and Water straining type gas recirculation system Download PDFInfo
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- CN102937043B CN102937043B CN201210519442.8A CN201210519442A CN102937043B CN 102937043 B CN102937043 B CN 102937043B CN 201210519442 A CN201210519442 A CN 201210519442A CN 102937043 B CN102937043 B CN 102937043B
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The present invention discloses a kind of EGR water filtering tank and Water straining type gas recirculation system, this water filtering tank comprises a tank body, and this tank body top is provided with suction port and air outlet, and tank base is provided with weep hole, described weep hole is placed with a sealing float, described sealing float bottom surface and drain opening are fitted.This system is on EGR pipe road, install cooler for recycled exhaust gas, EGR water filtering tank and EGR valve in turn.Compared with prior art, the liquid water in egr system filters by the present invention, can dissolve the flue dust in portion and hydrocarbon like this, and purification egr system, reduces effulent; The reliability of motor can be improved again, avoid parts wear to aggravate; Motor charge density can also be increased simultaneously, realize new combustion pattern, be minimized discharge and improve engine thermal efficiency.
Description
Technical field
The invention belongs to engine exhaust and utilize field, be specifically related to a kind of engines exhaust gas recirculation treatment device and system thereof.
Background technique
Along with domestic and international Abgasgesetz increasingly stringent, EGR and EGR Technology obtain extensive utilization at diesel engine arts.Utilize the feature that the specific heat of waste gas own is larger, pass into air inlet deferrable after cooling and to catch fire initial point, for mixing gains time; Waste gas imports the decline that cylinder must cause oxygen concentration in cylinder in addition, suppresses chemical reaction velocity, reduces average combustion temperature in cylinder, to nitrogen oxide NO
xreduction have great help; In addition, waste gas itself has diluting effect to air inlet, suppresses combustion rate further.
At present, the most widely used egr system is high-pressure exhaust-gas recirculation system HP-EGR, waste gas is cooled to 100 ° of about C, by EGR valve door, converges with fresh charge, then pass into cylinder.The adjustment range of this egr system to EGR rate is limited to the pressure difference value between exhaust and air inlet, and do not adopt any special measures, EGR rate is difficult to reach more than 25%.In order to expand the using scope of EGR rate, to meet the demand of low-temperature burning, low pressure egr system LP-EGR and middle pressure gas recirculation system MP-EGR arises.The waste gas of these two kinds of egr systems only needs exhaust pressure just can realize the EGR rate of about 40% slightly larger than atmospheric pressure after taking from turbine.In EGR rate adjustment range, there is advantageous advantage.In addition, when identical EGR amount is with identical intake temperature, the waste gas due to HP-EGR system directly passes into intake duct through cooler for recycled exhaust gas from exhaust manifold, so require higher to the intensity of cooling of cooler for recycled exhaust gas; And MP-EGR system and LP-EGR system are all use the waste gas flowed through after turbine, namely do the waste gas of expansion work, then flow through cooler for recycled exhaust gas and pass into intake duct, required significantly to reduce to the intensity of cooling of cooler for recycled exhaust gas.Therefore use MP-EGR system and LP-EGR system waste gas can be cooled to 100 ° of below C, and be unlikely to the cooling requirement additionally increasing motor, thus additionally increase oil consumption.Meanwhile, reducing EGR exhaust gas temperature, by contributing to the gas temperature after reducing supercharging, improving its charge density, the intensity of cooling of intercooler after reduction supercharging.
But, after waste gas being cooled to 100 ° of below C, the water vapour in waste gas will condense into liquid water gradually, along with the increase of EGR flow, liquid water also increases gradually, and along with air motion route, through the gas compressor of pressurized machine, finally can enter in cylinder, this has extreme influence by the eddy pressurizer blade of high-speed motion, enter the liquid water of cylinder simultaneously, also will destroy lubricant film in cylinder, and cause scuffing of cylinder bore.
Based on the problems referred to above, the present invention is directed to the egr system that waste gas is cooled to 100 ° of below C, design a set of drainage mechanism in systems in which, liquid water in egr system is filtered, can dissolve the cigarette in portion and hydrocarbon like this, purification egr system, reduces effulent; The reliability of motor can be improved again, avoid parts wear to aggravate; Motor charge density can also be increased simultaneously, realize new combustion pattern, be minimized discharge and improve engine thermal efficiency.
Summary of the invention
Given this, the object of the invention is the device providing a kind of cleaning of engine exhaust gas.
For solving above technical problem, technological scheme provided by the invention is, a kind of EGR water filtering tank is provided, comprise a tank body, this tank body top is provided with suction port and air outlet, tank base is provided with weep hole, described weep hole is placed with a sealing float, and described sealing float bottom surface and drain opening are fitted.
Preferably, described sealing float is bottom rounding centrum, inverted pyramids or spheroid.
Preferably, described sealing float is made up of the sealing float of below, support connecting piece between the pressure float of top and two floats.
Preferably, described support connecting piece is spring.
Further, described weep hole is provided with one perpendicular to the guide pipe at the bottom of tank, sealing float is provided with pilot hole, and described pilot hole and described guide pipe are slidably matched.
Present invention also offers a kind of EGR screening system comprising above-mentioned EGR water filtering tank, EGR pipe road is installed in turn cooler for recycled exhaust gas, EGR water filtering tank and EGR valve.
Further, the air inlet tube coupling in described EGR pipe road is communicated with waste pipe, and the tube coupling of giving vent to anger in EGR pipe road is communicated with the suction tude of motor.
Further, in middle pressure gas recirculation system, before the air inlet tube coupling in EGR pipe road is connected to booster turbine end.
Further, in low pressure egr system, after the air inlet tube coupling in EGR pipe road is connected to booster turbine end, before back pressure valve.
Further, before the tube coupling of giving vent to anger in described EGR pipe road is connected to the gas compressor of pressurized machine.
Compared with prior art, the liquid water in egr system filters by the present invention, can dissolve the flue dust in portion and hydrocarbon like this, and purification egr system, reduces effulent; The reliability of motor can be improved again, avoid parts wear to aggravate; Motor charge density can also be increased simultaneously, realize new combustion pattern, be minimized discharge and improve engine thermal efficiency.
The present invention is directed to the motor using low pressure EGR and middle pressure egr system, solve the adverse effect of waste gas to gas handling system on the one hand, prevent engine lubrication system from being destroyed, reduce engine heat load simultaneously, make to improve charge density further and become possibility, this has positive meaning to the discharge of reduction motor and the raising thermal efficiency; On the other hand, adopt Water straining type egr system, can not reduce on the basis of engine thermal efficiency, effectively avoid EGR exhaust gas pressure drop excessive, the inferior position that EGR rate control range reduces, have earth shaking effect to motor of new generation.
Present invention process is simple, easy to implement, cost is low, reliability is high, and wherein EGR water filtering tank adopts sealing float to control tank level water level, realizes the automatic excretion of condensed water in tank.
For the EGR gas being cooled to 100 ° of below C, the present invention by liquid water wherein and partly soluble flue dust and hydrocarbon by simple organizational separation out, sum up the advantage getting up to mainly contain following four aspects: one, the liquid water avoided in waste gas enters the gas compressor of high speed operation state, affect its working law, reduce its working life; It also avoid liquid water and enter cylinder, destroy lubricant film in cylinder, cause the danger of scuffing of cylinder bore; On the other hand, water filtering tank itself is also a kind of effective means of purification EGR gas, makes the waste gas entering cylinder more clean.Its three, be cooled to the EGR gas of 100 ° of below C, charge density is larger, and boost pressure can be made to improve further, and after being unlikely to make supercharging, gas temperature exceedes and bears limiting temperature.Be conducive to like this coordinating combustion control parameter, realize the object reducing discharge and improve the thermal efficiency.Its four, mainly carbon dioxide, nitrogen oxide and the oxygen of the EGR gas componant after filtration, the EGR specific heats of gases increase, and are conducive to reducing top dead center moment temperature in cylinder, improve composite rate in cylinder, all have positive effect to reduction nitrogen oxide and dry soot.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of EGR water filtering tank.
Fig. 2 is middle pressure EGR screening system mounting structure schematic diagram.
Fig. 3 is low pressure exhaust gas recirculation screening system mounting structure schematic diagram
Embodiment
Be described below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1
See Fig. 1.EGR water filtering tank described by the present embodiment, comprises a tank body 11, and this tank body is stainless cylinder of steel.This tank body 11 top is provided with suction port 11 and air outlet 12, is provided with weep hole 13 bottom tank body 11, weep hole 13 is provided with one perpendicular to the guide pipe 15 at the bottom of tank.Described weep hole 13 is placed with a sealing float 14, sealing float 14 is provided with pilot hole.Described sealing float 14 bottom surface and drain opening 13 are fitted, and described pilot hole and described guide pipe 15 are slidably matched.The shape of weep hole 13 inner face cooperatively interacts with the shape of sealing float 14 bottom surface.Sealing float 14 bottom is rounding centrum, inverted pyramids or spheroid, sealing float 14 is made up of the support connecting piece 143 between the pressure float 142 of the sealing float 141 of below, top and two floats, that is, the shape of sealing float 141 can be rounding centrum, inverted pyramids or spheroid.When sealing float 14 is bottom rounding centrum, weep hole 13 just should be the design of cone face.In like manner, sealing float 14 bottom be inverted pyramids or spheroid time, weep hole 13 inner face should be corresponding.
Be support connecting piece 143 between sealing float 141 and pressure float 142, its Main Function is convenient to regulate the water level in stainless steel tank body.Support connecting piece 143 is spring.Certainly, also can serve the same role with plastic tube/rod or metal tube/rod.
Under working state, after EGR valve is opened, cooled EGR gas passes into stainless cylinder of steel, and cooling water condenses into liquid with the flue dust be partly dissolved wherein and hydrocarbon, is deposited on stainless steel pot bottom.Now, because weep hole is blocked by sealing float, liquid can not excrete outside tank, and is not dissolved in the EGR gas of water, is got rid of by air outlet.Along with time history, liquid continues to enter in tank, and at the bottom of tank, liquid level rises gradually.Now, pressure float, by floating function, move, and the pressure sealed suffered by float is still greater than its buoyancy, is still fitted on weep hole gradually.Pressure float and sealing float running orbit are limited by guide pipe, can only do straight line motion.When tank level rises to critical value, sealing float is greater than the gravity of sealing float by buoyancy, now two floats are all along with guide pipe upward vertical movement, and float on a liquid.Now, because sealing float moves upward, tank bottom outlet hole is opened, and pot liquid starts to be excreted to outside tank, and in tank, liquid level also declines gradually, and two floats decline gradually, until weep hole blocked again by sealing float, realizes new balance.The wherein design of tank base cone face or sphere is the sealing in order to ensure in tank.As everyone knows, sealing float rising displacement is larger, and in tank, discharge capacity is stronger, when can effectively avoid EGR rate excessive, and the defect that excretion can not be not enough.
Embodiment 2
See Fig. 1 to Fig. 3.EGR screening system described by the present embodiment, is made up of EGR water filtering tank 1, EGR pipe road 2, cooler for recycled exhaust gas 3 and EGR valve 4.EGR pipe road 2 is installed in turn cooler for recycled exhaust gas 3, EGR water filtering tank 1 and EGR valve 4.EGR water filtering tank that is to say EGR water filtering tank described in embodiment 1.
In middle pressure gas recirculation system, before the air inlet tube coupling in EGR pipe road 2 is connected to the booster turbine end 6 on waste pipe 5.Before the tube coupling of giving vent to anger in EGR pipe road 2 is connected to the gas compressor 9 of the pressurized machine in the suction tude 8 of motor.Mentioned here forward and backward be standard according to the direction of gas flow.
In low pressure egr system, after the air inlet tube coupling in EGR pipe road 2 is connected to the booster turbine end 6 on waste pipe 5, before back pressure valve 7.Before the tube coupling of giving vent to anger in described EGR pipe road 2 is connected to the gas compressor 9 of the pressurized machine in the suction tude 8 of motor.
This egr system specific works principle is as follows: the waste gas that motor is discharged enters into EGR pipe road 2 through outlet pipe 5,100 ° of below C are cooled to through cooler for recycled exhaust gas 1, liquid water is filtered out and the part flue dust that is dissolved in water and hydrocarbon again through EGR water filtering tank 1, flow through EGR valve 4, finally converge in fresh charge, pass into the gas compressor 9 of pressurized machine, and then flow into cylinder.Remaining waste gas flows out motor by back pressure valve, is excreted in air.Wherein, EGR rate jointly controls realization by EGR valve 4 and back pressure valve 7.Concrete control strategy is as follows: engine electronic control unit ECU, according to engine rotational speed signal and throttle position signal, judges motor status, and obtains the size of target egr rate needed for this operating mode by ECU inner MAP data lookup table interpolation.Now by the feedback signal of the air inlet lambda sensor and exhaust gas oxygen sensor that are arranged on intake manifold and exhaust manifold place, ECU judges the actual ER EGR Rate of this operating mode, and exhaust gas recirculation valve and back pressure valve are accurately controlled by stepper motor based on the control algorithm of PID, make actual value tend to desired value, thus control the tolerance that waste gas passes into air inlet.Wherein, engine EGR rate formula is as follows:
In formula, EGR%-EGR leads; [O
2]
in-air inlet oxygen concentration; [O
2]
ex-density of oxygen contained in discharged gas.
After EGR valve is opened, cooled EGR gas passes into stainless cylinder of steel, and cooling water condenses into liquid with the flue dust be partly dissolved wherein and hydrocarbon, is deposited on stainless steel pot bottom.Now, because weep hole is blocked by sealing float, liquid can not excrete outside tank, and is not dissolved in the EGR gas of water, is got rid of by air outlet.Along with time history, liquid continues to enter in tank, and at the bottom of tank, liquid level rises gradually.Now, pressure float, by floating function, move, and the pressure sealed suffered by float is still greater than its buoyancy, is still fitted on weep hole gradually.Pressure float and sealing float running orbit are limited by guide pipe, can only do straight line motion.When tank level rises to critical value, sealing float is greater than the gravity of sealing float by buoyancy, now two floats are all along with guide pipe upward vertical movement, and float on a liquid.Now, because sealing float moves upward, tank bottom outlet hole is opened, and pot liquid starts to be excreted to outside tank, and in tank, liquid level also declines gradually, and two floats decline gradually, until weep hole blocked again by sealing float, realizes new balance.The wherein design of tank base cone face or sphere is the sealing in order to ensure in tank.As everyone knows, sealing float rising displacement is larger, and in tank, discharge capacity is stronger, when can effectively avoid EGR rate excessive, and the defect that excretion can not be not enough.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. an EGR water filtering tank, it is characterized in that, comprise a tank body (11), this tank body (11) top is provided with suction port (11) and air outlet (12), tank body (11) bottom is provided with weep hole (13), described weep hole (13) is placed with a sealing float (14), described sealing float (14) bottom surface and weep hole (13) are fitted; Described sealing float (14) is made up of the sealing float (141) of below, support connecting piece (143) between the pressure float (142) of top and two floats; Described support connecting piece (143) is spring; Described weep hole (13) is provided with one perpendicular to the guide pipe (15) at the bottom of tank, sealing float (14) is provided with pilot hole, and described pilot hole and described guide pipe (15) are slidably matched.
2. EGR water filtering tank according to claim 1, is characterized in that, described sealing float (14) is bottom rounding centrum, inverted pyramids or spheroid.
3. one kind comprises the EGR screening system of water filtering tank described in above arbitrary claim, it is characterized in that, EGR pipe road (2) are provided with in turn cooler for recycled exhaust gas (3), EGR drainage mechanism (1) and EGR valve (4).
4. EGR screening system according to claim 3, it is characterized in that, the air inlet tube coupling of described EGR pipe road (2) is communicated with waste pipe (5), and the tube coupling of giving vent to anger of EGR pipe road (2) is communicated with the suction tude (8) of motor.
5. EGR screening system according to claim 4, is characterized in that, in middle pressure gas recirculation system, before the air inlet tube coupling of EGR pipe road (2) is connected to booster turbine end (6).
6. EGR screening system according to claim 4, it is characterized in that, in low pressure egr system, after the air inlet tube coupling of EGR pipe road (2) is connected to booster turbine end (6), before back pressure valve (7).
7. the EGR screening system according to claim 5 or 6, is characterized in that, the gas compressor (9) that the tube coupling of giving vent to anger of described EGR pipe road (2) is connected to pressurized machine is front.
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| CN201210519442.8A CN102937043B (en) | 2012-12-06 | 2012-12-06 | A kind of EGR water filtering tank and Water straining type gas recirculation system |
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| CN201210519442.8A CN102937043B (en) | 2012-12-06 | 2012-12-06 | A kind of EGR water filtering tank and Water straining type gas recirculation system |
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| CN102937043B true CN102937043B (en) | 2015-09-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9638094B2 (en) * | 2014-04-07 | 2017-05-02 | Hanon Systems | Charge air cooler with integrated adjustable drain mechanism |
| CN106870118B (en) * | 2017-01-22 | 2022-12-09 | 东风商用车有限公司 | Water removal system of automobile intercooler |
| CN110118141A (en) * | 2019-05-05 | 2019-08-13 | 天津大学 | A kind of middle pressure exhaust gas low-pressure side introducing system based on two-stage turbocharger |
| CN111441884A (en) * | 2020-04-17 | 2020-07-24 | 东风商用车有限公司 | Internal leakage monitoring device and method for EGR cooler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2509428A1 (en) * | 1975-03-05 | 1976-09-16 | Audi Nsu Auto Union Ag | Sintered filter in petrol tank breather pipe - allows gas transfer but prevents passage of liquids |
| CN2036062U (en) * | 1988-05-09 | 1989-04-19 | 马峻岭 | Two-phase fluid separator |
| CN2839596Y (en) * | 2005-08-18 | 2006-11-22 | 朱裕丰 | Power undulatory removing device for cylinder mixed gas engine |
| CN101487416A (en) * | 2009-02-11 | 2009-07-22 | 山西佳新能源化工实业有限公司 | High compression ratio spark-ignition type engine |
| CN201554573U (en) * | 2009-10-19 | 2010-08-18 | 天津雷沃动力股份有限公司 | Simple waste-gas recycling system used for engine |
| CN202125377U (en) * | 2011-05-25 | 2012-01-25 | 广西玉柴机器股份有限公司 | EGR (Exhaust Gas Recircualtion) system of diesel engine |
| CN202500680U (en) * | 2012-01-16 | 2012-10-24 | 奇瑞汽车股份有限公司 | Exhaust gas recirculation system of diesel engine |
| CN203009099U (en) * | 2012-12-06 | 2013-06-19 | 西华大学 | Exhaust gas recirculation filtering mechanism and system thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113789B (en) * | 2006-07-25 | 2010-05-12 | 兰州理工大学 | Rolling gravitational force ball-valve |
| JP6041418B2 (en) * | 2010-12-16 | 2016-12-07 | 臼井国際産業株式会社 | Exhaust gas purification system for large-displacement marine diesel engines using low quality fuels below heavy oil |
| CN201953526U (en) * | 2010-12-30 | 2011-08-31 | 长城汽车股份有限公司 | Check valve for drainage and dust discharging port of automobile engine |
| CN102213513B (en) * | 2011-05-24 | 2013-04-17 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and water drainage device thereof |
| CN202392188U (en) * | 2011-12-23 | 2012-08-22 | 洪湖市蓝天安环节能设备有限公司 | Dish-shaped float type one-way valve |
-
2012
- 2012-12-06 CN CN201210519442.8A patent/CN102937043B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2509428A1 (en) * | 1975-03-05 | 1976-09-16 | Audi Nsu Auto Union Ag | Sintered filter in petrol tank breather pipe - allows gas transfer but prevents passage of liquids |
| CN2036062U (en) * | 1988-05-09 | 1989-04-19 | 马峻岭 | Two-phase fluid separator |
| CN2839596Y (en) * | 2005-08-18 | 2006-11-22 | 朱裕丰 | Power undulatory removing device for cylinder mixed gas engine |
| CN101487416A (en) * | 2009-02-11 | 2009-07-22 | 山西佳新能源化工实业有限公司 | High compression ratio spark-ignition type engine |
| CN201554573U (en) * | 2009-10-19 | 2010-08-18 | 天津雷沃动力股份有限公司 | Simple waste-gas recycling system used for engine |
| CN202125377U (en) * | 2011-05-25 | 2012-01-25 | 广西玉柴机器股份有限公司 | EGR (Exhaust Gas Recircualtion) system of diesel engine |
| CN202500680U (en) * | 2012-01-16 | 2012-10-24 | 奇瑞汽车股份有限公司 | Exhaust gas recirculation system of diesel engine |
| CN203009099U (en) * | 2012-12-06 | 2013-06-19 | 西华大学 | Exhaust gas recirculation filtering mechanism and system thereof |
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Effective date of registration: 20221219 Address after: 276000 west of jiangouya village, Luoxi street, high tech Zone, Linyi City, Shandong Province Patentee after: SHANDONG GEXIN PRECISION CO.,LTD. Address before: 610039, No. 999, Jin Zhou road, Jinniu District, Sichuan, Chengdu Patentee before: XIHUA University |