CN107191248A - 一种柴油机汽车卧式尾气净化装置 - Google Patents

一种柴油机汽车卧式尾气净化装置 Download PDF

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CN107191248A
CN107191248A CN201710424684.1A CN201710424684A CN107191248A CN 107191248 A CN107191248 A CN 107191248A CN 201710424684 A CN201710424684 A CN 201710424684A CN 107191248 A CN107191248 A CN 107191248A
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exhaust gas
diesel engine
working solution
engine automobile
horizontal exhaust
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CN107191248B (zh
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刘志恒
许丽君
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Jiangsu yuan Qing Environmental Protection Technology Co., Ltd.
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Changzhou Kun Yao Textile Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28Construction of catalytic reactors
    • F01N3/2803Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

本发明公开了一种柴油机汽车卧式尾气净化装置,属于尾气净化装置技术领域。本发明装置在运行过程中,尾气经过一段过滤室及二段过滤室后,充分吸附尾气中的PM2.5物质,经内部导气管进入分流管,利用主要成分为聚乙二醇二甲醚和硅酸钠溶液的工作液,吸附尾气中的CO、氮氧化物、二氧化硫等有害气体,汽车在行驶过程中,产生震动,使工作液溅射到喷淋网表面,尾气在上升过程中经过喷淋网,与喷淋网表面液滴接触,达到充分净化尾气的效果。本发明柴油机汽车卧式尾气净化装置可有效处理汽车尾气,在处理过程中,尾气可与介质充分接触,净化效率高,有效解决了传统柴油汽车尾气净化装置净化效率低,污染环境的问题。

Description

一种柴油机汽车卧式尾气净化装置
技术领域
本发明公开了一种柴油机汽车卧式尾气净化装置,属于环保装置技术领域。
背景技术
众所周知,内燃机的废气净化方法有机内净化和机外净化两种。机内净化是指生产低污染的发动机,机外净化是指使用废气净化装置来达到废气净化的目的。机内净化的研究周期长,经费投入大,且维修检修成本高,而机外净化则可在短时间内见效。
柴油机排放的废气含有一氧化碳、氮氧化物、碳氢化合物、二氧化硫及碳烟等醛类,这些物质对人体的危害不言而喻,无论是机内还是机外净化,只能对这些排放物含量进行降低,目前的科学水平无法做到排放物绝对无害。柴油机的机外净化通过化学催化法和物理法来达到净化的目的,这些方法效率理想,使用方法接单,维修检修成本低,按化学反应分为氧化型、还原型和自分解型三种,但无论哪一种处理方法,都需要用到催化剂,催化剂是机外净化的核心,对参与化学反应的分子起“活化”作用,是反应物分子变得比原来活跃,并使反应物分子的化学结构发生有利于化学反应的变化,但是,汽车尾气从产生到排出到空气中,在汽车内部停留时间有限,无法与所用的催化剂有效接触,且汽车尾气中还含有未完全燃烧的炭微粒,与传统所用固体催化剂接触时容易覆盖在催化剂表面,导致催化剂无法与汽车尾气接触,催化效率逐渐降低直至失效,因此,在目前汽车尾气处理过程中存在尾气与催化剂难以充分接触,从而导致尾气净化效率低,净化效果差的问题。
发明内容
本发明主要解决的技术问题是:针对传统柴油汽车尾气净化装置在使用时,尾气无法与介质充分接触,尾气的净化效率低,净化效果差,污染环境的问题,提供了一种柴油机汽车卧式尾气净化装置。
为了解决上述技术问题,本发明所采用的技术方案是:
一种柴油机汽车卧式尾气净化装置,包括尾气处理室、连接软管、连接紧固件、筒体安装抱箍、前盖板、后盖板、出气管、进气口,其特征在于:尾气处理室中,最前端为前气室,前气室与中气室通过一段过滤室连通,中气室依次通过二段过滤室、内部导气管及分流管与工作液相通,其中,分流管插入工作液液面以下,内部导气管末端封闭,封闭的末端与出气孔连接,工作液存放于后气室底部,且工作液上方设有喷淋网,在后盖板底部设有工作液排放口。
所述的连接管通过连接紧固件与进气口相连。
所述的进气口通过焊接固定于前盖板上,前盖板通过法兰与尾气处理室连接。
所述的出气管通过焊接固定于后盖板上,后盖板通过法兰与尾气处理室连接。
所述的分流管插入位于内部导气管表面的对应圆孔,并经焊接实现固定。
所述的喷淋网表面均匀分布有0.3~0.6mm的网孔,材质为不锈钢钢板。
所述的一段过滤室及二段过滤室填装的吸附材料为蜂窝状吸附材料,具体制备步骤为:按重量份数计,依次取10~15份纳米二氧化钛,15~20份环氧树脂E44,6~8份均苯四甲酸二酐,60~80份活性炭,20~30份PP棉,投入混料机中,搅拌混合2~4h,再将混料机中物料注入模具,并于温度为178~180℃条件下固化5~15min,脱模,即可。
所述的工作液是由聚乙二醇二甲醚与质量分数为8~10%硅酸钠溶液按体积比为10:1~20:1混合而成,工作液更换时通过工作液排放口排出。
本发明的有益效果是:
(1)本发明装置在运行过程中,尾气经过一段过滤室及二段过滤室后,充分吸附尾气中的PM2.5物质,经内部导气管进入分流管,利用主要成分为聚乙二醇二甲醚和硅酸钠溶液的工作液,吸附尾气中的CO、氮氧化物、二氧化硫等有害气体,汽车在行驶过程中,产生震动,使工作液溅射到喷淋网表面,尾气在上升过程中经过喷淋网,与喷淋网表面液滴接触,达到充分净化尾气的目的;
(2)本发明尾气净化装置所用工作液化学和热力学性质稳定,不易挥发,气相挟带损失少,吸附饱和后,经加热减压后能释放所吸收的气体,冷却加压后又可投入循环使用,工作液相比于传统固体催化剂而言,更换方便,易于重生,且可与尾气充分接触。
附图说明
图1为本发明柴油机汽车卧式尾气净化装置外部构造示意图;
图2为本发明柴油机汽车卧式尾气净化装置内部构造及管路走向示意图。
其中,1、尾气处理室;2、连接软管;3、连接紧固件;4、筒体安装抱箍;5、前盖板;6、后盖板;7、出气管;8、工作液排放口;9、进气口;10、前气室;11、一段过滤室;12、二段过滤室;13、中气室;14、内部导气管;15、分流管;16、工作液;17、喷淋网;18、后气室;19、出气孔。
具体实施方式
一种柴油机汽车卧式尾气净化装置,包括尾气处理室1、连接软管2、连接紧固件3、筒体安装抱箍4、前盖板5、后盖板6、出气管7、进气口9,其特征在于:尾气处理室1中,最前端为前气室10,前气室与中气室13通过一段过滤室11连通,中气室依次通过二段过滤室12、内部导气管14及分流管15与工作液16相通,其中,分流管插入工作液液面以下,内部导气管末端封闭,封闭的末端与出气孔19连接,工作液存放于后气室18底部,且工作液上方设有喷淋网17,在后盖板6底部设有工作液排放口8。将连接软管2与汽车发动机出气口连接,尾气处理室1通过筒体安装抱箍4水平安装于汽车相应部位,汽车发动后,尾气通过进气口9进入尾气处理室1的前气室10内,再通过一段过滤室11吸附尾气中PM2.5物质,吸附过后的尾气进入中气室13,并经过二段过滤室12进一步吸附尾气中残留的PM2.5物质,经二段吸附后的尾气再经过内部导气管14进入分流管15,分流管15中的尾气从底部出口与工作液16接触,经工作液催化吸附后,尾气经过喷淋网17,再经出气孔19进入出气管7后排出。所述的连接管2通过连接紧固件3与进气口9相连。所述的进气口9通过焊接固定于前盖板5上,前盖板5通过法兰与尾气处理室1连接。所述的出气管7通过焊接固定于后盖板6上,后盖板6通过法兰与尾气处理室1连接。所述的分流管15插入位于内部导气管14表面的对应圆孔,并经焊接实现固定。所述的喷淋网17表面均匀分布有0.3~0.6mm的网孔,材质为不锈钢钢板。所述的一段过滤室11及二段过滤室12填装的吸附材料为蜂窝状吸附材料,具体制备步骤为:按重量份数计,依次取10~15份纳米二氧化钛,15~20份环氧树脂E44,6~8份均苯四甲酸二酐,60~80份活性炭,20~30份PP棉,投入混料机中,搅拌混合2~4h,再将混料机中物料注入模具,并于温度为178~180℃条件下固化5~15min,脱模,即可。所述的工作液16是由聚乙二醇二甲醚与质量分数为8~10%硅酸钠溶液按体积比为10:1~20:1混合而成,工作液16更换时通过工作液排放口8排出。
将本发明柴油机汽车卧式尾气净化装置安装于卡车相应部位,进行常规的尾气过滤工作,并按4000~5000km/次对一段过滤室、二段过滤室内的吸附材料进行更换,更换时通过拆卸前盖板后直接将吸附材料取出即可,按4000~5000km/次对工作液进行更换,并将更换后的工作液回收,回收后的工作液经加热减压处理释放吸收的尾气,再经冷却加压及浓度调节后投入循环使用。经检测,卡车于满载和平路行驶状态下,经本发明柴油机汽车卧式尾气净化装置处理后的汽车尾气黑烟消失,仅见白色水蒸汽,CO转化率可达92.2~99.9%,氮氧化物转化率可达50~60%,二氧化硫的吸附率可达98.9~99.9%。

Claims (8)

1.一种柴油机汽车卧式尾气净化装置,包括尾气处理室(1)、连接软管(2)、连接紧固件(3)、筒体安装抱箍(4)、前盖板(5)、后盖板(6)、出气管(7)、进气口(9),其特征在于:尾气处理室(1)中,最前端为前气室(10),前气室与中气室(13)通过一段过滤室(11)连通,中气室依次通过二段过滤室(12)、内部导气管(14)及分流管(15)与工作液(16)相通,其中,分流管插入工作液液面以下,内部导气管末端封闭,封闭的末端与出气孔(19)连接,工作液存放于后气室(18)底部,且工作液上方设有喷淋网(17),在后盖板(6)底部设有工作液排放口(8)。
2.根据权利要求1所述的一种柴油机汽车卧式尾气净化装置,其特征在于:所述的连接管(2)通过连接紧固件(3)与进气口(9)相连。
3.根据权利要求1所述的一种柴油机汽车卧式尾气净化装置,其特征在于:所述的进气口(9)通过焊接固定于前盖板(5)上,前盖板(5)通过法兰与尾气处理室(1)连接。
4.根据权利要求1所述的一种柴油机汽车卧式尾气净化装置,其特征在于:所述的出气管(7)通过焊接固定于后盖板(6)上,后盖板(6)通过法兰与尾气处理室(1)连接。
5.根据权利要求1所述的一种柴油机汽车卧式尾气净化装置,其特征在于:所述的分流管(15)插入位于内部导气管(14)表面的对应圆孔,并经焊接实现固定。
6.根据权利要求1所述的一种柴油机汽车卧式尾气净化装置,其特征在于:所述的喷淋网(17)表面均匀分布有0.3~0.6mm的网孔,材质为不锈钢钢板。
7.根据权利要求1所述的一种柴油机汽车卧式尾气净化装置,其特征在于:所述的一段过滤室(11)及二段过滤室(12)填装的吸附材料为蜂窝状吸附材料,具体制备步骤为:按重量份数计,依次取10~15份纳米二氧化钛,15~20份环氧树脂E44,6~8份均苯四甲酸二酐,60~80份活性炭,20~30份PP棉,投入混料机中,搅拌混合2~4h,再将混料机中物料注入模具,并于温度为178~180℃条件下固化5~15min,脱模,即可。
8.根据权利要求1所述的一种柴油机汽车卧式尾气净化装置,其特征在于:所述的工作液(16)是由聚乙二醇二甲醚与质量分数为8~10%硅酸钠溶液按体积比为10:1~20:1混合而成,工作液(16)更换时通过工作液排放口(8)排出。
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