WO2021114538A1 - Dpf的再生装置 - Google Patents

Dpf的再生装置 Download PDF

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Publication number
WO2021114538A1
WO2021114538A1 PCT/CN2020/085272 CN2020085272W WO2021114538A1 WO 2021114538 A1 WO2021114538 A1 WO 2021114538A1 CN 2020085272 W CN2020085272 W CN 2020085272W WO 2021114538 A1 WO2021114538 A1 WO 2021114538A1
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dpf regeneration
dpf
regeneration device
air
fan
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PCT/CN2020/085272
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English (en)
French (fr)
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陈毛毛
孙丽媛
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江苏可兰素环保科技有限公司
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Publication of WO2021114538A1 publication Critical patent/WO2021114538A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D41/00—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids
    • B01D41/04—Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids of rigid self-supporting filtering material
    • 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
    • F01N3/021—Exhaust 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
    • F01N3/023—Exhaust 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 using means for regenerating the filters, e.g. by burning trapped particles

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  • the utility model relates to a regeneration device, in particular to a DPF regeneration device.
  • DPF particulate filters
  • Active regeneration mainly ignites the carbon deposits on the surface of the DPF through fuel injection or other heating methods. This method can reduce DPF blockage to a certain extent. Since there are still incombustible components in the DPF blockage, the efficiency is significantly reduced after multiple active regenerations, resulting in frequent system regeneration. At this time, the DPF can only be regenerated by other methods or directly discarded; at the same time, it may appear in the active regeneration process. The regeneration is uneven. Because the regeneration is mainly through fuel heating at present, improper operation will cause incomplete fuel combustion or local overheating, which will aggravate the blockage of the DPF or even burn it.
  • Passive regeneration mainly reduces the ignition point of carbon deposits by adding fuel additives or coating catalysts on the DPF carrier surface, and oxidizes and removes carbon deposits by combining with other oxidized exhaust gases in the exhaust gas. Because there are still incombustible components in the DPF plug, the DPF system will still be blocked after a certain period of time; the passive regeneration efficiency is mainly through the catalytic action of the catalyst. When a large amount of carbon deposits on the surface of the catalyst, the active sites are reduced and the regeneration efficiency is reduced. , It cannot be regenerated immediately after clogging occurs, and the clogging phenomenon will deteriorate rapidly, and the catalyst has a certain service life.
  • the utility model provides a fast, simple and safe DPF regeneration device to solve the above-mentioned problems.
  • the DPF regeneration device of the present invention includes: an air booster system, a purge system, and a dust collection system;
  • the purge system includes a cross bar, a wind head for purging, and a table for placing the DPF carrier
  • the wind head is located above the tray, and the wind head is controlled by the first driving device to move left and right on the crossbar; the particles are drawn out of the regeneration cabinet by the fan and then sent to the absorption tank for capture.
  • the purging system is arranged inside the regeneration cabinet, and further includes a vertical rod arranged perpendicular to the crossbar for positioning the height of the crossbar.
  • the vertical rod is provided with a second driving device for automatically adjusting the height of the cross rod.
  • the air booster system includes an air compressor and an air booster; the air booster is provided with a pressure setter.
  • the air boosting system is connected with a flow regulating valve and a pressure regulating valve to regulate the air pressure and flow required for purging during DPF regeneration.
  • the first driving device includes an electromagnetic switch to control the reciprocating stroke, and a speed control switch to control the reciprocating speed.
  • the tuyere includes a fan-shaped nozzle and a connecting pipeline, and the fan-shaped nozzle has an aperture of 2-5 mm;
  • the plate includes a geared motor and a stainless steel plate; the geared motor is equipped with a speed regulator for adjusting the rotation speed; the surface of the stainless steel plate has a cross scale used to calibrate the position of the carrier so that the geometric center of the carrier is aligned The center of the stainless steel plate; the stainless steel plate is hollowed out and used for gas circulation.
  • the outlet of the fan is connected to the air inlet pipe; the air inlet pipe is placed vertically and extends to the bottom of the absorption tank; the absorption tank is filled with particulate replenishment liquid, the upper part of the absorption tank is provided with an exhaust pipe, and the lower end of the exhaust pipe is in the tank liquid 2-5cm above the surface.
  • the end of the exhaust pipe is provided with a particle filter, and the pore size of the filter element of the filter is 1.0-2.0 ⁇ m.
  • the top of the absorption tank has a liquid filling port, and the equipment is in a sealed state when working; the bottom of the absorption tank has a liquid drain.
  • the utility model Compared with the prior art, the utility model has the following significant advantages: the utility model can blow out the particles in the DPF through high-pressure air, and the removal effect is more thorough; it can reduce the particle pollution and is convenient for later concentrated treatment; the geared motor rotates the DPF The carrier, the limelight is blown back and forth, and there is no dead angle in the full blown.
  • Figure 1 is a schematic diagram of the structure of the utility model
  • Figure 2 is a top view of the tray of the utility model.
  • the DPF regeneration device includes an air booster system 1, a purge system and a dust collection system.
  • the air boosting system 1 includes an air compressor and an air booster.
  • the purge system includes the air intake pipeline and the regeneration cabinet 6. In the near future, the pipeline is equipped with a flow regulating valve 2 and a pressure regulating valve 3 to adjust the air pressure and flow required for purging during DPF regeneration.
  • the dust collection system includes an absorption pool 13, an intake pipe 10, an exhaust pipe 11 and a particulate filter 12.
  • a fan 9 is also provided on the pipeline between the dust collection system and the purge system.
  • the air pressurization system 1 is used for pressurization of an external air source and is connected to a compressed air pipeline before use, and the air pressure after pressurization can be set. Adjust the air pressure and flow required for purging during DPF regeneration through the pressure regulating valve 3 and flow regulating valve 2 at the outlet end.
  • the setting pressure of the air booster 1 should be greater than the setting pressure of the outlet section pressure regulating valve to facilitate the maintenance of the purging process. Medium pressure is stable.
  • the air boost system is equipped with intake quick connect and exhaust quick connect.
  • the intake quick connect is connected to an external air source, and the exhaust quick connect is used to connect the purge system.
  • the quick connect setting can facilitate the disassembly of the regeneration device.
  • the regulating range of the pressure regulating valve 3 is 0.8-1.5MPa, and the regulating range of the flow regulating valve 2 is 0-1.0m 3 /h.
  • the purge system is provided with a plate 8 which is controlled by a geared motor, and the speed of the geared motor is controlled by a speed regulator.
  • the speed range is 0-100r/min.
  • the surface of the plate has a cross scale for calibration.
  • the center of the circle, the tray is hollowed out, used for gas circulation, as shown in Figure 2.
  • a vertical rod 4 and a cross rod 5 are arranged inside the regeneration cabinet 6 and they are arranged perpendicular to each other.
  • the cross bar 5 is provided with a wind head 7 which is controlled by the first driving device 14 to reciprocate left and right on the cross bar 5, the reciprocating stroke of the wind head 7 covers the platen, and the wind head 7 is controlled by the second driving device to move up and down on the vertical rod 4 , Used to adjust the height of the limelight according to the height of the DPF carrier.
  • the first driving device 14 includes an electromagnetic switch to control the reciprocating stroke, and the first driving device includes a speed control switch to control the reciprocating speed.
  • the tuyere 7 includes a fan-shaped nozzle and a connecting pipeline, and the diameter of the fan-shaped nozzle is 2-5 mm.
  • One side of the regeneration cabinet 6 is provided with an air intake quick connection for connection with the air booster system 1, and the other side of the regeneration cabinet is provided with an air outlet flange for connection with the dust collection system.
  • the inlet of the fan 9 is connected to the outlet of the regeneration cabinet 6, and the outlet is connected to the inlet pipe 10 of the absorption tank 13.
  • the intake pipe 10 is placed vertically and extends to the bottom of the absorption pool 13.
  • the absorption tank 13 is filled with particulate replenishment liquid.
  • the upper part of the absorption tank 13 is provided with an exhaust pipe 11, and the lower end of the exhaust pipe is 2-5 cm above the liquid level of the water tank.
  • the end of the exhaust pipe is provided with a particle filter 12, and the filter element has a pore size of 1.0-2.0 ⁇ m.
  • the absorption tank 13 has a liquid filling port at the top and a liquid discharge port at the bottom, and the equipment is in a sealed state when it is working.
  • the gas entrained with particulate matter enters the absorption tank 13 through the air inlet pipe 10, and is intercepted after being fully contacted with the particulate capture liquid.
  • the preliminary purified air is passed through The particulate filter 12 is purified and discharged for a second time.

Abstract

一种DPF的再生装置，包括：空气增压系统（1）、吹扫系统以及集尘系统；吹扫系统（1）包括横杆（5）、用于吹扫的风头（7）以及用于放置DPF载体的台盘（8）；风头（7）位于台盘（8）上方，风头（7）通过第一驱动装置（14）的控制在横杆（5）上进行左右运动；颗粒物经风机（9）抽出再生柜体（6）后送入吸收池（14）进行捕捉。该DPF的再生装置，再生时间短，安全系数高，结构简单，控制简单方便。

Description

DPF的再生装置 技术领域
本实用新型涉及一种再生装置，尤其涉及一种DPF的再生装置。
背景技术
随着柴油车排放新法规的不断出台，对柴油车尾气排放要求越来越高，使得国内柴油车装载颗粒捕集器(DPF)已成必然趋势。DPF能够捕集柴油发动机产生的90％以上的烟灰，有效地减少微粒物的排放，所以DPF运行一段时间，捕集的颗粒物堵塞孔道使得排气背压增加，当排气背压达到一定程度时，将会影响发动机的正常工作。此时需要对DPF进行再生处理，才能使发动机恢复正常工作。国内外DPF的再生，目前主要分为主动再生和被动再生。
主动再生主要通过喷油点燃加热或者其他加热方式引燃DPF表面的积碳，这种方法一定程度上可以减缓DPF堵塞。由于DPF堵塞物中还有不可燃烧的组分，多次主动再生后效率明显降低，造成系统频繁再生，此时只能通过其他方法对DPF进行再生或者直接报废处理；同时主动再生过程中可能出现再生不均匀，由于目前主要通过燃油加热再生，操作不当会造成燃油燃烧不彻底或者局部过热，加剧DPF堵塞甚至烧毁。
被动再生主要通过添加燃油添加剂或者DPF载体表面涂覆催化剂降低积碳燃点，通过与尾气中其他氧化态废气将积碳氧化去除。由于DPF堵塞物中还有不可燃烧的组分，一定时间后DPF系统仍会堵塞；被动再生效率主要通过催化剂的催化作用，当大量积碳堆积在催化剂表面，使活性位点降低，再生效率降低，出现堵塞后无法立即再生，堵塞现象会迅速恶化，同时催化剂具有一定的使用寿命。
目前的再生方式虽然能够一定程度的缓解DPF的堵塞，但是不能完全解决DPF堵塞的难点，所以开发一种能够快速、简单、安全再生DPF的设备是迫切需要的，对柴油车尾气治理具有重大的推动作用。
实用新型内容
实用新型目的：本实用新型提供一种快速、简单、安全的DPF的再生装置，以解决上述问题。
技术方案：本实用新型的DPF的再生装置，包括：空气增压系统、吹扫系统以及集尘系统；所述吹扫系统包括横杆、用于吹扫的风头以及用于放置DPF载体 的台盘；所述风头位于台盘上方，风头通过第一驱动装置的控制在横杆上进行左右运动；所述颗粒物经风机抽出再生柜体后送入吸收池进行捕捉。
所述吹扫系统设于再生柜体内部，还包括与横杆垂直设置的立杆，用于定位横杆的高度。
所述立杆上设有第二驱动装置，用于自动调整横杆高度。
所述空气增压系统包括空气压缩机与空气增压机；所述空气增压机设有压力设定器。
所述空气增压系统后连接流量调节阀和调压阀阀调节DPF再生时吹扫所需要的空气压力和流量。
所述第一驱动装置含有电磁开关控制往复行程，含有调速开关控制往复速度。
所述风头包括扇形喷头与连接管路，所述扇形喷头孔径为2-5mm；
所述台盘包括减速电机和不锈钢台盘；所述减速电机配备调速器，用于调节旋转转速；所述不锈钢台盘表面有十字刻度尺，用于标定载体位置，使载体几何中心对准不锈钢台盘圆心；所述不锈钢台盘镂空，用于气体流通。
所述风机出口连接进气管；所述进气管竖直放置，延伸至吸收池底部；所述吸收池内充满颗粒物补集液，吸收池上部设有排气管，所述排气管下端在水槽液面以上2-5cm。
所述排气管末端设有颗粒过滤器，过滤器滤芯孔径为1.0-2.0μm。
所述吸收池顶部有加液口，设备工作时处于密封状态；所述吸收池底部有排液口。
有益效果：与现有技术相比，本实用新型具有如下显著优点：本实用新型能够通过高压空气将DPF中颗粒吹出，清除效果更加彻底；能够减少颗粒物污染，便于后期集中处理；减速电机旋转DPF载体，风头往复吹扫，全面吹扫无死角。
附图说明
图1为本实用新型的结构示意图；
图2为本实用新型台盘俯视图。
具体实施方式
下面结合附图对本实用新型的具体实施方式作进一步说明。
如图1所示，本实用新型提的DPF的再生装置，包括空气增压系统1、吹扫系统和集尘系统。空气增压系统1包括空气压缩机与空气增压机。吹扫系统包括 进气管路、再生柜体6，近期管路上设有流量调节阀2和调压阀3阀调节DPF再生时吹扫所需要的空气压力和流量，还包括设于柜体内部的立杆4、横杆5、设于立杆上的第一驱动装置14、设于横杆上的第二驱动装置、用于吹扫的风头7以及用于放置DPF载体的台盘8。集尘系统包括吸收池13、进气管10、排气管11以及颗粒过滤器12。集尘系统与吹扫系统之间的管路上还设有风机9。
空气增压系统1于外接气源的增压，使用前与压缩空气管路连接，可设定增压后的空气压力。通过出口端的调压阀3和流量调节阀2调节DPF再生时吹扫所需要的空气压力和流量，空气增压机1设定压力应大于出口段调压阀设定压力，便于维持吹扫过程中压力稳定。空气增压系统设有进气快接和出气快接，进气快接连接外接气源，出气快接用于连接吹扫系统，快接的设置能够便于再生装置的拆卸。调压阀3调节范围为0.8-1.5MPa，流量调节阀2调节范围为0-1.0m 3/h。
吹扫系统设有台盘8，所述台盘由减速电机控制，减速电机转速由调速器控制，调速范围：0-100r/min，所述台盘表面有十字刻度尺，用于标定圆心，台盘镂空，用于气体流通，如图2所示。再生柜体6内部设有立杆4和横杆5，二者相互垂直设置。横杆5上设有风头7，所述风头7由第一驱动装置14控制在横杆5左右往复运动，风头7往复行程覆盖台盘，风头7由第二驱动装置控制在立杆4上下运动，用于根据DPF载体高度调整风头的高度。第一驱动装置14含有电磁开关控制往复行程，第一驱动装置含有调速开关控制往复速度。所述风头7包括扇形喷头与连接管路，所述扇形喷头孔径为2-5mm。再生柜体6一侧设有进气快接，用于与空气增压系统1连接，再生柜体另一侧设有出气法兰，用于与集尘系统连接。
风机9入口连接再生柜体6的出气口，出口连接吸收池13的进气管10。进气管10竖直放置，延伸至吸收池13底部。吸收池13内充满颗粒物补集液，吸收池13上部设有排气管11，所述排气管下端在水槽液面以上2-5cm。所述排气管末端设有颗粒过滤器12，过滤器滤芯孔径为1.0-2.0μm。吸收池13顶部有加液口，底部有排液口，设备工作时处于密封状态。
根据再生装置的工作原理，作进一步的描述：
DPF再生时，将DPF出气端朝上放置于台盘8上，通过表面刻度调整DPF中心位置，通过第二驱动装置控制扇形喷头贴近DPF载体表面，通过调节第一驱动装置14电磁开关位置，控制风头7往复行程，通过调节第一驱动装置14速度 开关，调节扇形喷头往复速度。台盘8可通过减速电机调速器调节旋转速度，设备工作时，DPF载体通过台盘带动旋转，风头7回吹扫再生。吹扫出的积碳等颗粒物由风机9出再生柜体6入集尘系统中，夹带颗粒物的气体通过进气管10进入吸收池13，与颗粒捕捉液充分接触后截留，初步净化后的空气经颗粒过滤器12二次净化排出。

Claims (10)

  1. 一种DPF的再生装置，包括：空气增压系统(1)、吹扫系统以及集尘系统，其特征在于，所述吹扫系统包括横杆(5)、用于吹扫的风头(7)以及用于放置DPF载体的台盘(8)；所述风头(7)位于台盘(8)上方，风头(7)通过第一驱动装置(14)的控制在横杆(5)上进行左右运动；所述颗粒物经风机(9)抽出再生柜体(6)后送入吸收池(13)进行捕捉。
  2. 根据权利要求1所述的DPF的再生装置，其特征在于，所述吹扫系统设于再生柜体(6)内部，还包括与横杆(5)垂直设置的立杆(4)，用于定位横杆的高度。
  3. 根据权利要求2所述的DPF的再生装置，其特征在于，所述立杆(4)上设有第二驱动装置，用于自动调整横(5)杆高度。
  4. 根据权利要求1所述的DPF的再生装置，其特征在于，所述台盘(8)包括减速电机和不锈钢台盘；所述减速电机配备调速器，用于调节旋转转速；所述不锈钢台盘表面有十字刻度尺，用于标定载体位置，使载体几何中心对准不锈钢台盘圆心；所述不锈钢台盘镂空，用于气体流通。
  5. 根据权利要求1所述的DPF的再生装置，其特征在于，所述第一驱动装置(14)含有电磁开关控制往复行程，含有调速开关控制往复速度。
  6. 根据权利要求1所述的DPF的再生装置，其特征在于，所述空气增压系统(1)后连接流量调节阀(2)和调压阀(3)阀调节DPF再生时吹扫所需要的空气压力和流量。
  7. 根据权利要求1所述的DPF的再生装置，其特征在于，所述风头(7)包括扇形喷头与连接管路，所述扇形喷头孔径为2-5mm。
  8. 根据权利要求1所述的DPF的再生装置，其特征在于，所述风机(9)出口连接进气管(10)；所述进气管(10)竖直放置，延伸至吸收池(13)底部；所述吸收池(13)内充满颗粒物补集液，吸收池上部设有排气管(11)，所述排气管(11)下端在水槽液面以上2-5cm。
  9. 根据权利要求8所述的DPF的再生装置，其特征在于，所述吸收池(13)顶部有加液口，设备工作时处于密封状态；所述吸收池(13)底部有排液口。
  10. 根据权利要求1所述的DPF的再生装置，其特征在于，所述排气管(11)末端设有颗粒过滤器(12)，过滤器滤芯孔径为1.0-2.0μm。
PCT/CN2020/085272 2019-12-11 2020-04-17 Dpf的再生装置 WO2021114538A1 (zh)

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