CN106523086B - Underground diesel engine exhaust gas processing device - Google Patents

Underground diesel engine exhaust gas processing device Download PDF

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Publication number
CN106523086B
CN106523086B CN201611053922.4A CN201611053922A CN106523086B CN 106523086 B CN106523086 B CN 106523086B CN 201611053922 A CN201611053922 A CN 201611053922A CN 106523086 B CN106523086 B CN 106523086B
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CN
China
Prior art keywords
horizontal pipeline
diesel engine
inlet pipe
exhaust gas
bottom opening
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CN201611053922.4A
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Chinese (zh)
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CN106523086A (en
Inventor
李强
吴强
刘恒亮
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Tongling Chemical Group New Bridge Mining Industry Co Ltd
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Tongling Chemical Group New Bridge Mining Industry Co Ltd
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Priority to CN201611053922.4A priority Critical patent/CN106523086B/en
Publication of CN106523086A publication Critical patent/CN106523086A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0835—Hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/02—Corrosion resistive metals
    • F01N2530/04—Steel alloys, e.g. stainless steel

Abstract

The invention discloses underground diesel engine exhaust gas processing devices, it includes cabinet (1), air inlet pipe (2), exhaust pipe (3), sewage draining exit (4) and water inlet pipe (5), the end of the air inlet pipe is horizontal pipeline (6) that is parallel with the bottom of box and being spaced apart, air dispelling hole is evenly equipped in the horizontal pipeline, the first support (7) and the second support (8) is distributed in the bottom interval of the horizontal pipeline, the trapezoidal deflector (9) that horizontal pipeline is included in interior bottom opening is equipped with above the horizontal pipeline, baffle-box (11) are communicated with by coupling tube (10) on the exhaust pipe.The beneficial effects of the invention are as follows particulate matters can reduce by 95% or more, and pernicious gas can reduce by 80% or more, and noise decibel can be down to 70 decibels by 90 decibels, greatly reduces the health effect to operator.

Description

Underground diesel engine exhaust gas processing device
Technical field
The present invention relates to the diesel engine exhaust gas treatment devices that diesel engine exhaust gas purification device more particularly to underground use.
Background technique
The exhaust gas of diesel emission refer to exhaust pipe of engine discharge exhaust gas and the fuel vapour that leaks out of other positions and The gas scurried out, wherein most are exhaust pipe discharges.Harmful components in exhaust gas depend on fuel before burning and air Mixability, combustion chamber burning condition and the reaction condition in exhaust system.Major pollutants discharged include: one Carbonoxide, hydrocarbon, oxynitrides and particle etc..Contain gaseous state, liquid, solid pollutant in exhaust gas.Gaseous state is dirty It contaminates and contains CO, CO in object2、H2、NOx、SO2, oxide, organic nitrogen compound, sulfur-containing mixture etc..Fluid contaminants contain H2SO4、 HC, oxide etc..Solid contaminant (PM2.5、PM5) contain carbon, metal, oxide etc..In above-mentioned pollutant most importantly CO、CO2 、HC、NOxAnd solid particulate matter (PM2.5).Pernicious gas (CO, HC) content that diesel engine discharges compared with gasoline engine Seldom there was only 1/10th of gasoline engine, and the discharge amount of particulate matter is then 30 to 50 times of comparison of ingredients complexity of gasoline engine, with The form of soot exists.It can be seen that the major pollutants of diesel engine are particulate matter and NOx.Research shows that particulate matter main component includes Soot particulate (30%), solvable hydrocarbon particulate matter (35%), sulphur and water (35%).Since the particulate matter surface area of discharge is big, absorption Power is strong and particulate matter diameter small (0.01-0.05 microns), light weight, therefore can suspend for a long time in an atmosphere, is easily sucked by human body And be deposited in alveolar, there is great harm to the health of people.
The diesel engine that underground uses all has been provided with oxidation catalyzer clarifier (DOC) when leaving the factory and uses to meet its It is required that.But due to the limitation of conditions down-hole, the low actual emission for causing tail gas of the oxygen content in air that draws badly has with regulation It enters and leaves.There is over-emitting black exhaust phenomenon, particulate matter and nitrogen oxides increase that be researched and analysed its ingredient be largely soot dust granule in tail gas Object seriously affects health along with the too big operating environment worker for endangering underground of noise is unwilling to operate.
The toxic gas for including in tail gas is generated due to imperfect combustion, and the purification method of original equipment is to utilize to urge Change effect, oxygen make unburnt part be in contact oxidation, realize innoxious.
I.e. carbon monoxide occurs oxidation and becomes carbon dioxide (carbonic acid gas), furthermore the various hydrocarbons etc. containing acetaldehyde The same oxidation transformation that occurs is water and carbon dioxide.
Clarifier to remove engine exhaust included in ingredient other than the above, for example NO, (nitrogen oxides) SO, (sulphur oxide) effect is not significant.In addition, about black smoke (carbon dust), although catalyst, which can burn, removes part black smoke (carbon Powder), but do not have remarkable result.
Chinese invention patent application number CN201310005755.6 discloses diesel engine vent gas water washing cleaning device, it includes Cabinet (8) equipped with water, the exhaust outlet (1) that cabinet (8) is equipped with tail gas air inlet (2), is connected with gas-water separation mechanism are special Sign is according to tail gas motion path in cabinet (8) at least provided with a mixing wastewater with air plate (3), and the mixing wastewater with air plate (3) includes Skeleton (6), skeleton (6) is interior filled with the filler (7) prepared by heatproof, resistant material, and the filler (7) is by strip material Random turn of song is entwined, and the section of strip material is blunt form section；Tail gas is through mixing wastewater with air plate (3) by air pocket It cracks as micro-bubble, is purified sufficiently in conjunction with water, then arranged after gas-water separation mechanism realizes gas-water separation from exhaust outlet (1) Out, the present invention is substantially better than the water washing cleaning case of other patterns, air water to the capture of particulate matter and the assimilation effect of pernicious gas Separator effectively reduces the consumption of water, and operating cost is low and reliable.But it in use can be to mixing wastewater with air plate Direct impact is generated, this can generate biggish vibration, bring biggish noise, the especially noise when the device is in underground operation Enlarge-effect can be generated, the hearing of operator is damaged.
Summary of the invention
The technical problem to be solved by the present invention is to existing diesel engine vent gas water washing cleaning devices cannot be removed effectively NOxWith Particulate matter, although NO can removexWith particulate matter but operation noise it is larger, be not suitable for underground use, one kind is provided thus Underground diesel engine exhaust gas processing device.
The technical scheme is that underground diesel engine exhaust gas processing device, it includes cabinet, air inlet pipe, exhaust pipe, row Dirty mouth and water inlet pipe, the end of the air inlet pipe are horizontal pipeline that is parallel with the bottom of box and being spaced apart, the horizontal tube Road is evenly equipped with air dispelling hole, and the first support and the second support, the horizontal pipeline is distributed in the bottom interval of the horizontal pipeline Top is equipped with the trapezoidal deflector that horizontal pipeline is included in interior bottom opening, is communicated on the exhaust pipe by coupling tube Baffle-box.
The improvement of above scheme be the bottom opening trapezoidal deflector above be equipped at intervals with it is inclined at least can be the bottom of by The rectangular guiding plate that the horizontal plane of the trapezoidal deflector of portion's opening is included, the tilt angle of the rectangular guiding plate are 5-30 ° and offer the through-hole passed through for air inlet pipe.
It is several that the further improvement of above scheme is that the upper uniform plane of the trapezoidal deflector of the bottom opening is laid with Stirring blade.
The distance between trapezoidal deflector and rectangular guiding plate of bottom opening described in above scheme are in horizontal pipeline The 1/2-4/5 of diameter.
Cabinet described in above scheme is stainless steel material.
The beneficial effects of the invention are as follows make gas turn back between partition around air dispelling hole laying diaphragm to come with detour The time of contact of increase tail gas and water can also effectively reduce the pressure of gas, dust be reduced in cabinet, readily soluble water has Evil gas is dissolved in water, and the tail gas after final purification is discharged with dampening from exhaust pipe, can't see any flue dust at all.Particulate matter 95% or more can be reduced, pernicious gas can reduce by 80% or more, and noise decibel can be down to 70 decibels by 90 decibels, greatly reduce To the health effect of operator.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention；
In figure, 1, cabinet, 2, air inlet pipe, 3, exhaust pipe, 4, sewage draining exit, 5, water inlet pipe, 6, horizontal pipeline, 7, first Seat, the 8, second support, 9, the trapezoidal deflector of bottom opening, 10, coupling tube, 11, baffle-box, 12, rectangular guiding plate, 13, stir Mix blade.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in Figure 1, underground diesel engine exhaust gas processing device of the invention, it include cabinet 1, air inlet pipe 2, exhaust pipe 3, Sewage draining exit 4 and water inlet pipe 5, the end of the air inlet pipe are horizontal pipeline 6 that is parallel with the bottom of box and being spaced apart, the water Air dispelling hole is evenly equipped on flat pipeline, the first support 7 and the second support 8, the water is distributed in the bottom interval of the horizontal pipeline It is equipped with the trapezoidal deflector 9 that horizontal pipeline is included in interior bottom opening above flat pipeline, passes through transition on the exhaust pipe Pipe 10 is communicated with baffle-box 11.
The water injected by water inlet pipe is stored in cabinet, exhaust pipe can be at least located in the box body end by liquid level Flood, the effect of the first support and the second support is that stable support is provided to horizontal pipeline, when input diesel engine vent gas by The air dispelling hole of horizontal pipeline can generate a large amount of bubble when being discharged into cabinet, and then generate turbulent flow, the first support and the second support Fixation that can be stable by horizontal pipeline, avoid its it is radial since turbulent flow generates shake, to improve the stabilization of air inlet pipe work Property, and from the noise for reducing generation to a certain degree.
The trapezoidal deflector of bottom opening in the present invention refer to be made of upper plane, left side and right side it is open Trapezoidal deflector, from three directions by horizontal pipeline be included in and the bottom of cabinet cooperate together to horizontal pipeline shape At baffle space, the air dispelling hole in horizontal pipeline is in preferably cellular distribution, and can increase air-dispersing area in this way keeps diesel oil useless Gas is full and uniform to react with water mixing convenient for dilution dissolution, and diesel exhaust is made to turn back between the trapezoidal deflector of bottom opening Increase the time of contact of diesel exhaust and water with detour, moreover it is possible to effectively reduce the pressure of gas.The effect of baffle-box is anti- The purified gas pressure being only discharged is larger, and air velocity is too fast, and purified gas a part of discharge ascends into slow It rushes in case, another part is discharged by exhaust pipe.
In order to further increase the time of contact of diesel exhaust and water, preferably above the trapezoidal deflector of bottom opening between Every equipped with the inclined rectangular guiding plate 12 that at least horizontal plane of the trapezoidal deflector of bottom opening can be included, institute The tilt angle for stating rectangular guiding plate is 5-30 ° and offers the through-hole passed through for air inlet pipe.The study found that working as rectangular guiding plate Tilt angle be 5-30 ° between when can accomplish noise reduction and guide ascending air between balance, it is specific due to what is had Tilt angle, ascending air will not generate biggish impact by relatively mild guidance, guarantee while noise reduction to rising gas Effective guidance of stream, the particle being wherein mingled in the uphill process of air-flow can be trapped in rectangular guiding plate since gravity is larger Surface efficiently separates particle to realize.The upper raising speed of ascending air if the tilt angle of rectangular guiding plate is too small Rate is too small, cannot play the effect of separation particle, the upper raising speed of ascending air if the tilt angle of rectangular guiding plate is excessive Rate is excessive, can generate biggish noise.
As long as rectangular guiding plate can there are certain gaps between its periphery and the inner wall of cabinet for the gas of rising Stream passes through.For example there are certain gap or certain two periphery, there are certain on some periphery of rectangular guiding plate Gap, there are certain gap or even four peripheries, all there are certain gaps on certain three periphery.
The preferred embodiment of the present invention first is that the upper uniform plane of the trapezoidal deflector of bottom opening is laid with several stir Blade 13 is mixed, will drive stirring blade rotation, the rising gas of generation when the diesel exhaust of air dispelling hole discharge impacts stirring blade Stream is stirred blade agitation into tiny bubble, and when bubble continues the above-mentioned plate to rectangular guiding, bubbles burst is by particle therein It is trapped in rectangular guiding plate surface, air-flow can form returning for circulation between the trapezoidal deflector and rectangular guiding plate of bottom opening Stream, by harmful soluble gas such as NO in diesel exhaustx, HC compound and oil smoke carbon granules be dissolved in water, play preferably Gas purifying.
Another preference of the invention is that the distance between trapezoidal deflector and the rectangular guiding plate of bottom opening are 1/2,3/5 or the 4/5 of horizontal pipeline internal diameter, such distance may insure the air-flow risen in the trapezoidal water conservancy diversion of bottom opening The reflux that circulation is formed between plate and rectangular guiding plate has enough impact forces, so that a part of air-flow can be along rectangular guiding Plate rises, and is discharged via exhaust pipe.The gas being discharged in this way will be free from the intracorporal moisture of more case, the aridity of gas compared with It is good, it avoids the particle dissolved in water and pernicious gas from being discharged therewith, causes the reduction of clean-up effect.
The outlet of former exhaust pipe need to only be connect with heatproof bellows when in use with air inlet pipe and tail gas is introduced directly into case It is purified in vivo, keeps original purification mechanism DOC, the tail that purifying box is added to discharge in suitable space is looked in equipment Gas carries out double purification to make up the deficiency purified originally and create better operating environment.In order to which anti-corrosion box uses stainless steel Material is made.
The investment of the project is very few, and role is very big, and weight has especially been played in terms of DH environmental protection It acts on, has catered to the trend of present enterprise development.Purification by technical research for the exhaust emissions of oil-burning machine has provided Sharp condition, and be conducive to occupational safety and health.

Claims (4)

1. underground diesel engine exhaust gas processing device, it include cabinet (1), air inlet pipe (2), exhaust pipe (3), sewage draining exit (4) and into Water pipe (5), it is characterized in that the end of the air inlet pipe is horizontal pipeline (6) that is parallel with the bottom of box and being spaced apart, it is described Air dispelling hole is evenly equipped in horizontal pipeline, the first support (7) and the second support (8) is distributed in the bottom interval of the horizontal pipeline, Be equipped with above the horizontal pipeline by horizontal pipeline be included in bottom opening trapezoidal deflector (9), on the exhaust pipe Be communicated with baffle-box (11) by coupling tube (10), be equipped at intervals with above the trapezoidal deflector of the bottom opening it is inclined extremely The rectangular guiding plate (12) that the horizontal plane of the trapezoidal deflector of bottom opening can be included less, the rectangular guiding plate Tilt angle be 5-30 ° and to offer the through-hole passed through for air inlet pipe.
2. underground diesel engine exhaust gas processing device as described in claim 1, it is characterized in that the trapezoidal water conservancy diversion of the bottom opening The upper uniform plane of plate is laid with several stirring blades (13).
3. underground diesel engine exhaust gas processing device as claimed in claim 2, it is characterized in that the trapezoidal water conservancy diversion of the bottom opening The distance between plate and rectangular guiding plate are the 1/2-4/5 of horizontal pipeline internal diameter.
4. underground diesel engine exhaust gas processing device a method according to any one of claims 1-3, it is characterized in that the cabinet is stainless steel Material.
CN201611053922.4A 2016-11-25 2016-11-25 Underground diesel engine exhaust gas processing device Active CN106523086B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201611053922.4A CN106523086B (en) 2016-11-25 2016-11-25 Underground diesel engine exhaust gas processing device

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CN106523086B true CN106523086B (en) 2019-01-11

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115370448B (en) * 2022-08-29 2024-01-30 湖州新兴汽车部件有限公司 Automobile silencer
CN115502052A (en) * 2022-09-29 2022-12-23 颀中科技（苏州）有限公司 Buffer device suitable for high-viscosity photoresist and photoresist liquid supply system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB522462A (en) * 1938-03-21 1940-06-18 Burgess Battery Co Exhaust silencing and spark arresting device
CA2098460C (en) * 1992-06-16 1999-04-06 Richard A. Burrous Exhaust gas scrubber and filter assembly
PE20030297A1 (en) * 2001-08-09 2003-06-19 Fernandez Rafael Vidal CHEMICAL-MECHANICAL PROCESS TO REDUCE THE POLLUTION PRODUCED BY THE COMBUSTION OF FOSSIL FUELS, PETROLEUM AND ITS DERIVATIVES
CN103016108B (en) * 2013-01-08 2015-08-12 益阳新华美机电科技有限公司 Diesel engine vent gas water washing cleaning device
CN103343707B (en) * 2013-07-16 2015-09-30 武汉理工大学 A kind of flameproof apparatus of engine energy-saving environmental protection
CN104454087B (en) * 2014-11-05 2017-07-07 广西柳工机械股份有限公司 The exhaust gas processing device of loading machine
CN105089743A (en) * 2015-07-29 2015-11-25 山东临工工程机械有限公司 Integrated tail gas treatment system of underground loader

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