CN106437949A - Following type tail gas purification device suitable for high-power vehicle - Google Patents

Following type tail gas purification device suitable for high-power vehicle Download PDF

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Publication number
CN106437949A
CN106437949A CN201610835849.XA CN201610835849A CN106437949A CN 106437949 A CN106437949 A CN 106437949A CN 201610835849 A CN201610835849 A CN 201610835849A CN 106437949 A CN106437949 A CN 106437949A
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exhaust gas
gas purifying
purifying apparatus
system
heater
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CN201610835849.XA
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Chinese (zh)
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CN106437949B (en
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景琦
任博
张睿
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北京机械设备研究所
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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
    • F01N11/00Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • F01N11/00Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
    • 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
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/002Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
    • 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
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • 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
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • 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
    • F01N3/033Exhaust 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 in combination with other devices
    • 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
    • F01N3/18Exhaust 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
    • F01N3/2066Selective catalytic reduction [SCR]
    • F01N3/208Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • F01N3/2882Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • 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
    • F01N9/00Electrical control of exhaust gas treating apparatus
    • 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
    • F01N2240/00Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/16Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
    • 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
    • F01N2250/00Combinations of different methods of purification
    • F01N2250/02Combinations of different methods of purification filtering and catalytic conversion
    • 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
    • F01N2560/00Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • 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
    • F01N2560/00Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/06Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
    • 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
    • F01N2570/00Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/10Carbon or carbon oxides
    • 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
    • F01N2570/00Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/12Hydrocarbons
    • 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
    • F01N2570/00Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14Nitrogen oxides
    • 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
    • F01N2590/00Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/08Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
    • 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
    • Y02A50/20Air quality improvement or preservation
    • Y02A50/23Emission reduction or control
    • Y02A50/232Catalytic converters
    • Y02A50/2322Catalytic converters for exhaust after-treatment of internal combustion engines in vehicles
    • 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
    • Y02T10/40Engine management systems
    • Y02T10/47Exhaust feedback

Abstract

The invention relates to a following type tail gas purification device suitable for a high-power vehicle. The following type tail gas purification device comprises a movable frame, an oxidation catalyst, a particulate filter, a reduction catalyst, a heater, a pressure regulating system, a control system, an energy system and a connection system. Wheels are arranged at the bottom of the movable frame, and the interior of the movable frame is divided into an upper layer and a lower layer. The oxidation catalyst, the particulate filter, the reduction catalyst and the heater are all arranged on the upper layer, and the pressure regulating system is arranged on the lower layer. According to the following type tail gas purification device, by the adoption of a guide rail and sliding block mechanism connection structure and the mode that the heater and the pressure regulating system are combined to work, low exhaust back pressure, dynamic process purification and an automatic regeneration function of the tail gas purification device are achieved; and a good tail gas purification effect can be guaranteed, the device does not occupy too much space and is easy and convenient to use, and the service life of internal related components is prolonged.

Description

一种适用于大功率车辆的伴随式尾气净化装置 Suitable for high-power vehicle exhaust gas purifying apparatus syndrome

技术领域 FIELD

[0001] 本发明涉及尾气净化技术领域,尤其涉及一种适用于大功率车辆的伴随式尾气净化装置。 [0001] The present invention relates to the field of exhaust gas purification technology, in particular for high-power, to a vehicle exhaust gas purifying apparatus syndrome.

背景技术 Background technique

[0002] 发动机排量大于20L的大功率车辆,在工作中产生的尾气污染非常严重,在厂房、隧道、车间等相对封闭的场所,常导致现场的工作人员双眼流泪、嗓子疼痛、呼吸不畅,甚至引起短暂思维混乱。 [0002] greater than the power of the vehicle engine displacement 20L, the resulting exhaust pollution is very serious in operation, the plant in a relatively closed spaces, tunnels, workshops and the like, often leads to tears site staff eyes, sore throat, shortness of breath and even cause temporary confusion. 目前用于大功率车辆的尾气净化装置可分为随车安装和厂房固定使用两类。 At present exhaust gas purifying apparatus for a vehicle it can be divided into power installation and attendant uses two types of fixed plant. 随车安装的尾气净化器大多采用相对单一的净化模块,主要有DOC (氧化催化器)、DPF(微粒过滤器)、SCR (还原催化器)等。 Truck mounted relative to the exhaust gas purifying device they use a single cleaning module, there are the DOC (oxidation catalyst), the DPF (particulate filter), the SCR (reduction catalyst) or the like. 该种技术方案受限于车辆安装空间,主要根据车辆排放特点将单一净化模块固定安装在排气管后,用于实时净化处理车辆排放尾气。 This kind of technical solution to the vehicle mounting space is limited, mainly based on vehicle emissions characteristics of a single cleaning module is fixedly mounted in the exhaust pipe, a vehicle exhaust emissions in real time purification. 但该种技术方案对尾气有害成分净化处理不全面,不适用于在相对封闭场所内车辆的尾气净化,且拆卸安装复杂。 However, the kind of technical solution to the exhaust gas purifying harmful components incomplete, not in a relatively closed for purifying vehicle exhaust premises, complicated installation and disassembly. 另一种,厂房固定使用的尾气净化装置为多级尾气净化装置。 Another, stationary plant exhaust gas purifying apparatus used was a multi-stage exhaust gas purifying apparatus. 该种技术方案集成了DOC (氧化催化器)、DPF (微粒过滤器)、SCR (还原催化器)三个净化模块,可以同时净化尾气中多种有害物质,车辆通过排气软管与净化装置连接,实现静止状态下尾气净化。 The program integrates the DOC techniques (oxidation catalyst), the DPF (particulate filter), the SCR (reduction catalyst) purifying three modules can purify harmful substances in the exhaust gas while the vehicle passes through the exhaust gas purification device with the hose connection, an exhaust gas purifying achieve a stationary state. 但是该类型尾气净化装置存在排气背压较高、影响发动机效率,体积重量较大、不方便随车移动,并且过滤模块使用周期短,更换频繁等问题。 However, there is a higher exhaust gas back pressure, engine efficiency impact, a larger volume and weight, convenient moving lorry, and filtered using a short cycle module, this type of problems and frequent replacement of exhaust gas purifying apparatus.

发明内容 SUMMARY

[0003] 鉴于上述的分析,本发明旨在提供一种适用于大功率车辆的伴随式尾气净化装置,用以解决现有技术不能兼顾净化效果与使用便捷的问题。 [0003] In view of the above analysis, the present invention aims to provide syndrome exhaust gas purifying apparatus for high-power vehicles, to solve the problems of the prior art can not be both easy to use and the purifying effect.

[0004] 本发明的目的主要是通过以下技术方案实现的: [0004] The object of the present invention is primarily achieved by the following technical solution:

[0005] —种适用于大功率车辆的伴随式尾气净化装置,该尾气净化装置包括:移动架体、氧化催化器、微粒过滤器、还原催化器、加热器、调压系统、控制系统、能源系统、连接系统; [0005] - syndrome species suitable for high-power vehicle exhaust gas purifying apparatus, the exhaust gas purifying apparatus comprising: a mobile frame body, oxidation catalyst, particulate filter, reduction catalyst, heater, pressure systems, control systems, energy system, a system;

[0006] 移动架体的底部设有轮子,且内部分为上下两层;氧化催化器、微粒过滤器、还原催化器、加热器均设置在上层;调压系统设置在下层; The bottom of the [0006] carriage body provided with wheels, and the inner divided into two layers; oxidation catalyst, particulate filter, reduction catalyst, heater are disposed in an upper layer; regulating system is provided in a lower layer;

[0007] 移动架体一端的上层通过螺栓安装有加热器,氧化催化器与加热器连接并固定,氧化催化器、微粒过滤器、还原催化器依次通过卡箍连接;移动架体一端的下层设有调压系统; [0007] The movement of the upper end of the frame body is mounted by a bolt heater, an oxidation catalyst is connected and fixed to the heater, an oxidation catalyst, particulate filter, in turn connected by a reduction catalyst clamp; lower carriage member is provided at one end of there regulator system;

[0008] 移动架体的另一端的上层设有控制系统,下层设有能源系统; [0008] The other end of the upper carriage body is provided with a control system, with lower energy systems;

[0009] 移动架体的前侧设有连接系统。 [0009] The front side of the frame body is provided with the connection system.

[0010] 加热器为温控式柴油燃烧器,且加热温度可以自动调节。 [0010] The temperature controlled heater is a diesel burner, and the heating temperature can be adjusted automatically.

[0011] 调压系统为闭环控制的涡轮风扇调压系统,通过改变内部涡轮风扇的转速来调节管路内部气流的压力。 [0011] regulator system turbofan regulator closed-loop control system, to regulate the pressure inside the gas flow line by changing the rotation speed of the fan inside the turbine.

[0012] 控制系统为ECU控制系统,动态监测、调节尾气净化装置内的压力、温度、化学反应及电源;尾气净化装置内的压力范围为2_5kPa;尾气净化装置内的温度范围为250-350°C。 [0012] The ECU control system is a control system, dynamic monitoring, regulating the pressure in the exhaust gas purifying apparatus, the temperature, power and chemical reaction; within the pressure range of the exhaust gas purifying apparatus 2_5kPa; temperature range of the exhaust gas purifying apparatus of 250-350 ° C.

[0013] 能源系统同时提供220V和24V两种电源。 [0013] Energy system also provides two power 24V and 220V.

[0014] 连接系统包括:导轨滑块机构、连接机构; [0014] The connection system comprising: a slide rail mechanism, the connection mechanism;

[0015]导轨滑块机构的导轨通过螺栓固定在移动架体的前侧,导轨滑块机构的滑块与连接机构通过螺栓连接并固定。 [0015] The guide rail slider mechanism is bolted to the front side of the rack, and a slider guide mechanism connected to the slider mechanism connected and fixed by a bolt.

[0016] 导轨滑块机构包括旋转副和滑动副,导轨和滑块组成滑动副,旋转副设置于滑块上,通过旋转副和滑动副可实现滑块的俯仰及上下运动。 [0016] The rotating mechanism includes a slider rail and the sub-sub-slide, slide guide and the slider composed of the sub, the sub-rotation is provided on the slider, and the slider by rotation of the sub-sub can be achieved and the pitch of the vertical movement of the slider.

[0017] 连接机构设有锁紧装置。 [0017] The locking device is provided with connecting means.

[0018] 移动架体左右两侧均设有进气孔,安装调压系统的一侧设有排气孔;进气孔均与加热器连接,排气孔与调压系统连接。 [0018] The left and right sides of the mobile frame body has inlet holes, side of the mounting of the regulating system provided with an exhaust hole; intake port is connected to the heater, the vent system is connected to the regulator.

[0019] —种使用该尾气净化装置的尾气净化方法,该方法的步骤为: [0019] - the kind of exhaust gas purifying apparatus using the exhaust gas purifying method, the steps of the method are:

[0020] S1、将尾气净化装置的连接机构与车辆牵引钩连接,并使用锁紧装置锁紧; [0020] S1, the connection means with the vehicle exhaust gas purifying apparatus is connected to the traction hook, and a locking device using the locking;

[0021] S2、使用波纹管连接车辆的排气管与尾气净化装置的进气孔; [0021] S2, a bellows connected to the vehicle exhaust pipe and the intake port of the exhaust gas purifying apparatus;

[0022] S3、启动车辆和尾气净化装置,尾气被调压装置抽入尾气净化装置; [0022] S3, starting of the vehicle and the exhaust gas purifying apparatus, the exhaust gas drawn into the device is regulated exhaust gas purifying apparatus;

[0023] S4、尾气经加热器加热后,进入氧化催化器,使尾气氧化为C02、H20、氮氧化物、颗粒物的混合气体; [0023] S4, the exhaust gas heated by the heater, into the oxidation catalyst, so that the mixed exhaust gas is oxidized to C02, H20, nitrogen oxides, particulate matter;

[0024] S5、经微粒过滤器过滤掉颗粒物后,通入还原催化器,以将氮氧化物分解为%与H2O; [0024] S5, after the particulate filter to filter out particulate matter, into the reduction catalyst to decompose nitrogen oxides and to% H2O;

[0025] S6、经调压装置,处理后的尾气排放至大气中。 [0025] S6, by the regulating device, the exhaust gas after treatment discharged to the atmosphere.

[0026] 本发明有益效果如下: [0026] Advantageous effects of the present invention are as follows:

[0027] 1.本发明通过导轨滑块机构和连接结构使本发明可适应装置移动过程中上下及俯仰自由度,可以使本发明实现对汽车尾气的动态净化。 [0027] 1. The present invention of the present invention is connected by a slide rail mechanism and the structure of the device can be adapted during the vertical movement and the tilting degree of freedom, the present invention can be made dynamically to the purification of automobile exhaust.

[0028] 2.加热器的设计,可以使温度始终保持在规定温度值区间内,使得氧化催化器、氧化催化器、氧化催化器均能工作在最佳温度,延长了工作寿命,提高了净化的效果。 Design [0028] 2. The heater, the temperature can be kept within a predetermined temperature range, so that the oxidation catalyst, oxidation catalyst, an oxidation catalyst can work at the optimum temperature and longer working life, improved purification Effect.

[0029] 3.调压系统可以使本发明的气流的压力保持在规定的范围内,也可延长了工作寿命,提高了净化的效果。 [0029] 3. A pressure regulating system of the present invention, the gas flow is maintained within a predetermined range, but also extend the working life, improved purification effect.

[0030] 本发明的其他特征和优点将在随后的说明书中阐述,并且,部分的特征和优点从说明书中变得显而易见,或者通过实施本发明而了解。 [0030] Other features and advantages of the invention will be set forth in the description which follows, and, features and advantages of the specification will become apparent from, or learned by practice of the present invention. 本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。 The objectives and other advantages of the invention may be realized and attained by the written description, claims, and drawings structure particularly pointed out.

附图说明 BRIEF DESCRIPTION

[0031]附图仅用于示出具体实施例的目的,而并不认为是对本发明的限制,在整个附图中,相同的参考符号表不相同的部件。 [0031] The drawings are only for purposes of illustrating particular embodiments, and is not considered limiting of the present invention, throughout the drawings, like parts are not the same reference symbols table.

[0032]图1为一种适用于大功率车辆的伴随式尾气净化装置的内部结构示意图。 As a structural diagram of a vehicle for high-power syndrome exhaust gas purifying apparatus [0032] FIG. 1 inside.

[0033]图2为一种适用于大功率车辆的伴随式尾气净化装置的侧视图。 [0033] FIG. 2 is a syndrome exhaust gas purifying apparatus for high-power side of the vehicle.

[0034] 1.移动架体、2.氧化催化器、3.微粒过滤器、4.还原催化器、5.加热器、6.调压系统、7.控制系统、8.能源系统、9.导轨滑块机构、10.连接机构。 [0034] 1. The moving frame body 2. The oxidation catalyst 3. Particulate filter, 4. reduction catalyst, 5 heater, 6 regulating system 7. The control system 8. The energy system 9. slider guide means 10 connection mechanism.

具体实施方式 Detailed ways

[0035]下面结合附图来具体描述本发明的优选实施例,其中,附图构成本申请一部分,并与本发明的实施例一起用于阐释本发明的原理。 [0035] The accompanying drawings in conjunction with embodiments below with a preferred embodiment of the present invention is specifically described, which drawings form a part of this application, and together with the embodiments of the present invention to explain the principles of the present invention.

[0036] —种适用于大功率车辆的伴随式尾气净化装置,该尾气净化装置包括:移动架体 [0036] - species suitable for high-power syndrome vehicle exhaust gas purifying apparatus, the exhaust gas purifying apparatus comprising: a mobile frame body

1、氧化催化器2、微粒过滤器3、还原催化器4、加热器5、调压系统6、控制系统7、能源系统8、连接系统; 1, 2 oxidation catalyst, a particulate filter 3, the reduction catalyst 4, the heater 5, voltage regulation system 6, the control system 7, 8 the energy system, the connection system;

[0037] 移动架体I的底部设有轮子,且内部分为上下两层;氧化催化器2、微粒过滤器3、还原催化器4、加热器5均设置在上层;调压系统6设置在下层; [0037] The moving frame provided with wheels at the bottom of the body I, and the inner divided into two layers; 2 oxidation catalyst, a particulate filter 3, the reduction catalyst 4, 5 are disposed in the upper heater; pressure regulating system 6 is provided lower;

[0038] 移动架体I 一端的上层通过螺栓安装有加热器5,氧化催化器2与加热器5连接并固定,氧化催化器2、微粒过滤器3、还原催化器4依次通过卡箍连接;移动架体I 一端的下层设有调压系统6; [0038] I an upper end by a bolt carriage body 5 is attached to the heater, the oxidation catalyst 2 and 5 are connected and fixed to the heater, 2 the oxidation catalyst, a particulate filter 3, the reduction catalyst 4 are sequentially connected by a clamp; I moving the lower end of rack 6 is provided with pressure regulating system;

[0039] 移动架体I的另一端的上层设有控制系统7,下层设有能源系统8; [0039] The other end of the upper carriage body I is provided with a control system 7, with lower energy system 8;

[0040] 移动架体I的前侧设有连接系统。 [0040] The front side of the frame body I is provided with the connection system.

[0041] 加热器5为温控式柴油燃烧器,且加热温度可以自动调节。 [0041] The heater 5 is a temperature-controlled diesel burner, and the heating temperature can be adjusted automatically.

[0042] 调压系统6为闭环控制的涡轮风扇调压系统6,通过改变内部涡轮风扇的转速来调节管路内部气流的压力。 [0042] 6 is a turbofan system regulator regulating closed-loop control system 6, the line pressure is adjusted by changing the rotation speed of the internal air flow inside the turbine fan.

[0043] 控制系统7为ECU控制系统7,动态监测、调节尾气净化装置内的压力、温度、化学反应及电源;该尾气净化装置内的压力范围为2_5kPa;该尾气净化装置内的温度范围为250-350°C;该尾气净化装置中化学反应有氧化反应和还原反应,其中氧化反应为开环控制,系统只通过控制进入氧化催化器的温度和压力在最佳区域,实现转化效率在90%以上;而还原反应为闭环控制,还原催化器两端设置有温度、压力及NOx传感器,系统通过实时监测温度、压力及NOx值,动态调整尿素喷射流量和压力,以确保转化效率在85%以上,氨溢出量小于1ppmο [0043] The control system 7 for the ECU control system 7, dynamic monitoring, regulating the pressure in the exhaust gas purifying apparatus, the temperature, chemical reactions and power; pressure range of the exhaust gas purifying apparatus as 2_5kPa; temperature range of the exhaust gas purifying device is 250-350 ° C; in the exhaust gas purifying apparatus chemical oxidation and reduction reactions, wherein the oxidation reaction is the open loop control system only by controlling the inlet temperature and pressure of the oxidation catalyst in the preferred region, to achieve conversion efficiencies of 90 % or more; and closed-loop control of the reduction reaction, the reduction catalyst is provided at both ends of the temperature, pressure and the NOx sensor, the system time monitoring temperature, pressure and the NOx values, and dynamically adjusting the flow rate of urea injection pressure, to ensure that the conversion efficiency of 85% above, the ammonia amount is less than the overflow 1ppmο

[0044] 能源系统8同时提供220V和24V两种电源。 [0044] Energy system provides two power 24V 220V and 8 simultaneously.

[0045] 连接系统包括:导轨滑块机构9、连接机构1 ; [0045] The connector system comprising: a slide rail mechanism 9, an attachment mechanism;

[0046]导轨滑块机构9的导轨通过螺栓固定在移动架体I的前侧,导轨滑块机构9的滑块与连接机构1通过螺栓连接并固定。 [0046] The slide guide rail mechanism 9 is bolted to the front side of the mobile frame body I, with the slider slider mechanism connected to guide means 9 and 1 is fixed by a bolt connection.

[0047] 导轨滑块机构9包括旋转副和滑动副,导轨和滑块组成滑动副,旋转副设置于滑块上,通过旋转副和滑动副可实现滑块的俯仰及上下运动。 [0047] The guide 9 comprises a rotary slide mechanism and the sub-slide pair, consisting of the rail and the slider sliding pair, disposed on the rotary sub-slider, the slider can be achieved by rotating the sub and sub-slide up and down movement and pitching.

[0048] 连接机构1设有锁紧装置。 [0048] The attachment mechanism is provided with a locking device.

[0049] 该尾气净化装置的移动架体I的长小于或等于2600mm、宽小于或等于1100mm、高小于或等于1240mm;该尾气净化装置的总量小于或等于700kg; [0049] The moving rack exhaust gas purifying apparatus I is less than or equal length 2600mm, width less than or equal to 1100mm, 1240mm or less high; the total amount of the exhaust gas purifying device is equal to or less than 700kg;

[0050] 移动架体I左右两侧均设有进气孔,安装调压系统6的一侧设有排气孔;进气孔均与加热器5连接,排气孔与调压系统6连接。 [0050] I carriage body has right and left intake hole, one side of the pressure regulating system 6 is provided with mounting vent; intake port 5 are connected to the heater, the vent regulating system 6 is connected . .

[0051] 该尾气净化装置的工作原理为: [0051] The exhaust gas purifying apparatus works as follows:

[0052] 首先由能源系统8为整机装置供电,柴油机排放的尾气进入本装置后,通过加热器5预热,然后进入DOC (氧化催化器2)。 [0052] First, the energy supply system 8 for the whole apparatus, the exhaust emissions of diesel engines into the present apparatus, preheated by the heater 5 and then into the DOC (oxidation catalyst 2). 此时,尾气中的HC、C0以及部分碳烟颗粒发生氧化反应,转变为0)2和出0。 At this time, the exhaust HC, C0, and part of the soot oxidation reaction, converted to 0) and the 2 0. 其后,尾气通过DPF (微粒过滤器3)时,剩余碳烟颗粒被有效拦截。 Thereafter, through the DPF (particulate filter 3) off-gas, residual soot particles are effectively intercepted. 经过两级净化的尾气尚未达到排放标准,还需消除其中的N0X,模块后端的SCR (还原催化器4)即为此而设。 Purification through two exhaust emission standards have not yet reached, the need to eliminate N0X therein, the rear end of the module SCR (reduction catalyst 4) that is provided for the purpose. 在SCR (还原催化器4)中,先由尿素热解产生氨气,之后NH3还原NOx为犯与出0,从而达到最终的净化目标。 In the SCR (reduction catalyst 4), first urea pyrolysis ammonia, NH3 reduction of NOx is then made with a 0, to achieve the ultimate goal of the purification. 上述净化过程中,电控模块中的温度传感器将采集加热器5和SCR处的温度,并反馈至温度控制器。 The above purification process, the electronic control module temperature sensor 5 will be collected at the temperature of the heater and the SCR, and fed back to the temperature controller. 其后,温度控制器根据预先设定的程序和标准,向加热器5中的执行器发出执行指令,执行相应操作,使加热器5的温度始终保持在规定温度值区间内,SCR (还原催化器4)中的温度保持在设定目标值区间内,以确保尾气净化装置连续稳定高效运行。 Thereafter, the temperature controller based on a preset criteria and procedures, the heater 5 is issued to the actuator execution instruction, execute a corresponding operation, the temperature of the heater 5 is always maintained within a predetermined temperature range, the SCR (catalytic reduction thermometer 4) is maintained within the target range set in order to ensure stable and efficient exhaust gas purifying device for continuous operation. 同时,SCR前后端设置NOx传感器,对排气中的NOx进行监控,SCR (还原催化器4)控制器根据反馈到的NOx含量自动对尿素喷射量的值进行调节,以使尿素喷射量在合理范围之内。 Meanwhile, the front and rear ends of the SCR NOx sensor is provided for monitoring the NOx in exhaust gas, the SCR (reduction catalyst 4) Automatic control of the injection amount of urea value is adjusted to feedback NOx content so that the injection amount of urea at a reasonable within range.

[0053] —种使用该尾气净化装置的尾气净化方法,该方法的步骤为: [0053] - the kind of exhaust gas purifying apparatus using the exhaust gas purifying method, the steps of the method are:

[0054] S1、将尾气净化装置的连接机构10与车辆牵引钩连接,并使用锁紧装置锁紧; [0054] S1, the exhaust gas purifying device is connected to means 10 connected to the vehicle towing hook, and locking means locking use;

[0055] S2、使用波纹管连接车辆的排气管与尾气净化装置的进气孔; [0055] S2, a bellows connected to the vehicle exhaust pipe and the intake port of the exhaust gas purifying apparatus;

[0056] S3、启动车辆和尾气净化装置,尾气被调压装置抽入尾气净化装置; [0056] S3, starting of the vehicle and the exhaust gas purifying apparatus, the exhaust gas drawn into the device is regulated exhaust gas purifying apparatus;

[0057] S4、尾气经加热器5加热后,进入氧化催化器2,使尾气氧化为C02、H20、氮氧化物、颗粒物的混合气体; [0057] S4, the heater 5 is heated by the exhaust gas into the oxidation catalyst 2, so that the mixed exhaust gas is oxidized to C02, H20, nitrogen oxides, particulate matter;

[0058] S5、经微粒过滤器3过滤掉颗粒物后,通入还原催化器4,以将氮氧化物分解为N2与H2O; [0058] S5, after the particulate filter out particulate matter filtered through a 3, 4 through the reduction catalyst to decompose nitrogen oxides to N2 and H2O;

[0059] S6、经调压装置,处理后的尾气排放至大气中。 [0059] S6, by the regulating device, the exhaust gas after treatment discharged to the atmosphere.

[0060]综上所述,本发明实施例提供了一种适用于大功率车辆的伴随式尾气净化装置,经本发明处理后的尾气CO净化效率不小于90% ;HC净化效率不小于90% ;N0X净化效率不小于85%;氨溢出量不大于lOppm。 [0060] In summary, embodiments of the present invention provides a exhaust gas purifying apparatus syndrome for high-power vehicles, CO purification efficiency of exhaust gas treatment by the present invention is not less than 90%; the HC purification efficiency is not less than 90% ; NOx purification efficiency of not less than 85%; an amount not greater than the overflow ammonia lOppm. 适当的尺寸选取,既保证了本发明的尾气净化效率,又使得本发明的结构适中,不影响大功率车辆的使用和运行;通过采用导轨滑块机构连接结构、加热器和调压系统联合工作的方式实现了尾气净化装置的低排气背压、动态过程净化及自动再生功能。 Select the appropriate size, both to ensure the efficiency of exhaust gas purification of the present invention, and such structure of the present invention is moderate, and does not affect operation of the vehicle power; slide rail mechanism by using the connection structure, the heater regulator and the joint work system way to achieve low exhaust back pressure of the exhaust gas purifying apparatus, the dynamic process of purification and automatic regeneration function.

[0061]以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。 [0061] The above are only the preferred specific embodiments of the invention, but the scope of the present invention is not limited thereto, any skilled in the art in the art within the scope of the invention disclosed can be easily thought variations or replacements shall fall within the protection scope of the present invention.

Claims (10)

1.一种适用于大功率车辆的伴随式尾气净化装置,其特征在于,该尾气净化装置包括:移动架体、氧化催化器、微粒过滤器、还原催化器、加热器、调压系统、控制系统、能源系统、连接系统; 所述移动架体的底部设有轮子,且内部分为上下两层;所述氧化催化器、微粒过滤器、还原催化器、加热器均设置在上层;所述调压系统设置在下层; 所述移动架体一端的上层通过螺栓安装有所述加热器,所述氧化催化器与所述加热器连接并固定,所述氧化催化器、微粒过滤器、还原催化器依次通过卡箍连接;所述移动架体一端的下层设有调压系统; 所述移动架体的另一端的上层设有控制系统,下层设有能源系统; 所述移动架体的前侧设有所述连接系统。 1. A method for high-power syndrome vehicle exhaust gas purifying apparatus, wherein the exhaust gas purifying apparatus comprising: a mobile frame body, oxidation catalyst, particulate filter, reduction catalyst, heater, pressure system, control system, the energy system, a system; bottom of the mobile frame body provided with wheels, and the inner divided into two layers; the oxidation catalyst, particulate filter, reduction catalyst, heater are disposed in an upper layer; the voltage regulation system is provided in a lower layer; moving the upper end of the body frame by a bolt mounted with the heater, the oxidation catalyst and the heater are connected and fixed, the oxidation catalyst, particulate filter, catalytic reduction is in turn connected by a clamp; a lower layer of the moving frame is provided with one end of the regulating system; the other end of the upper moving frame body is provided with a control system, with lower energy systems; front side of the moving frame body the connection system is provided.
2.根据权利要求1所述的尾气净化装置,其特征在于,所述加热器为温控式柴油燃烧器,且加热温度可以自动调节。 2. The exhaust gas purifying apparatus according to claim 1, wherein said heater is a diesel burner thermostat, and the heating temperature can be adjusted automatically.
3.根据权利要求1所述的尾气净化装置,其特征在于,所述调压系统为闭环控制的涡轮风扇调压系统,通过改变内部涡轮风扇的转速来调节管路内部气流的压力。 3. The exhaust gas purifying apparatus according to claim 1, wherein said pressure regulating system is a turbofan regulating closed-loop control system, to regulate the pressure inside the gas flow line by changing the rotation speed of the fan inside the turbine.
4.根据权利要求1所述的尾气净化装置,其特征在于,所述控制系统为ECU控制系统,动态监测、调节尾气净化装置内的压力、温度、化学反应及电源;所述尾气净化装置内的压力范围为2-5kPa;所述尾气净化装置内的温度范围为250-350°C。 The inner exhaust gas purifying apparatus; 4. The exhaust gas purifying apparatus according to claim 1, wherein said control system is a control system ECU, dynamic monitoring, regulating the pressure in the exhaust gas purifying apparatus, the temperature, power and chemical reaction pressure range is 2-5kPa; temperature range of the exhaust gas purifying apparatus of 250-350 ° C.
5.根据权利要求1所述的尾气净化装置,其特征在于,所述能源系统同时提供220V和24V两种电源。 The exhaust gas purifying apparatus according to claim 1, characterized in that said energy system also provides two power 24V and 220V.
6.根据权利要求1至5任一所述的尾气净化装置,其特征在于,所述连接系统包括:导轨滑块机构、连接机构; 所述导轨滑块机构的导轨通过螺栓固定在所述移动架体的前侧,所述导轨滑块机构的滑块与所述连接机构通过螺栓连接并固定。 According to an exhaust gas purifying apparatus according to any one of claims 5, wherein said connector system comprising: a slide rail mechanism, connection means; said guide rail by a slide means movable in said bolted the front side of the frame body, the slide rail mechanism and the slider mechanism connected and fixed by bolting.
7.根据权利要求6所述的尾气净化装置,其特征在于,所述导轨滑块机构包括旋转副和滑动副,导轨和滑块组成滑动副,旋转副设置于滑块上,通过旋转副和滑动副可实现滑块的俯仰及上下运动。 7. The exhaust gas purifying apparatus according to claim 6, wherein said guide means comprises a rotary slider and the sub-sub-slide, slide guide and the slider composed of the sub, the sub-rotation is provided on the slider, and by rotating the sub sliding pair can be achieved and the pitch of the vertical movement of the slider.
8.根据权利要求6所述的尾气净化装置,其特征在于,所述连接机构设有锁紧装置。 8. The exhaust gas purifying apparatus according to claim 6, wherein said connecting means is provided with a locking means.
9.根据权利要求1或7或8所述的尾气净化装置,其特征在于,所述移动架体左右两侧均设有进气孔,安装调压系统的一侧设有排气孔;所述进气孔均与所述加热器连接,所述排气孔与所述调压系统连接。 9. The exhaust gas purifying apparatus of claim 1 or 7 or as claimed in claim 8, wherein said moving frame member has left and right sides of inlet holes, the installation of the regulating system is provided with a side vent; the said intake port are connected to the heater, the vent system is connected to the regulator.
10.—种使用根据权利要求1至9任一所述的尾气净化装置的尾气净化方法,其特征在于,该方法的步骤为: S1、将所述尾气净化装置的连接机构与车辆牵引钩连接,并使用锁紧装置锁紧; S2、使用波纹管连接车辆的排气管与所述尾气净化装置的进气孔; S3、启动车辆和所述尾气净化装置,尾气被所述调压装置抽入所述尾气净化装置; S4、尾气经所述加热器加热后,进入所述氧化催化器,使尾气氧化为C02、H20、氮氧化物、颗粒物的混合气体; S5、经所述微粒过滤器过滤掉颗粒物后,通入所述还原催化器,以将氮氧化物分解为N2与H2O; S6、经所述调压装置,处理后的尾气排放至大气中。 10.- The use according to any species 9 exhaust gas purifying method of an exhaust gas purifying apparatus according to claim, wherein the step of the method is: S1, the exhaust gas purifying apparatus connection means traction vehicle hooking and using the locking device locking; S2, using an exhaust pipe connecting the bellows with the vehicle exhaust gas purifying apparatus of the inlet hole; S3, starting of the vehicle, and the exhaust gas purifying apparatus, the exhaust gas pressure regulating device is evacuated into the exhaust gas purifying apparatus; S4, after the heater is heated by the exhaust gas, into said oxidation catalyst so that the exhaust gas is oxidized to C02, H20 mixed gas, nitrogen oxides, particulate matter; S5, through the particulate filter after filtering out particulate matter into the reduction catalyst to decompose nitrogen oxides to N2 and H2O; S6, via the pressure adjustment means, the exhaust gas after treatment discharged to the atmosphere.
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