CN108049945A - 一种scr系统水循环系统 - Google Patents

一种scr系统水循环系统 Download PDF

Info

Publication number
CN108049945A
CN108049945A CN201711257744.1A CN201711257744A CN108049945A CN 108049945 A CN108049945 A CN 108049945A CN 201711257744 A CN201711257744 A CN 201711257744A CN 108049945 A CN108049945 A CN 108049945A
Authority
CN
China
Prior art keywords
way
engine
urea
electromagnetic valve
water circulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711257744.1A
Other languages
English (en)
Inventor
钱川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Golden Dragon New Energy Automotive Research Institute Co Ltd
Original Assignee
Nanjing Golden Dragon New Energy Automotive Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Golden Dragon New Energy Automotive Research Institute Co Ltd filed Critical Nanjing Golden Dragon New Energy Automotive Research Institute Co Ltd
Priority to CN201711257744.1A priority Critical patent/CN108049945A/zh
Publication of CN108049945A publication Critical patent/CN108049945A/zh
Pending legal-status Critical Current

Links

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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust 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
    • F01N3/18—Exhaust 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
    • F01N3/20—Exhaust 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • 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
    • F01N3/10—Exhaust 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
    • F01N3/18—Exhaust 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
    • F01N3/20—Exhaust 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2046—Periodically cooling catalytic reactors
    • 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
    • F01N3/10—Exhaust 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
    • F01N3/18—Exhaust 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
    • F01N3/20—Exhaust 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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

本发明公开了一种SCR系统水循环系统，包括发动机、前HVAC总成、尿素喷嘴、尿素箱、加热电磁阀和连接管路，所述发动机通过连接管路与前HVAC总成相连，发动机出水，经过前HVAC总成由三通管分两路，一路经过尿素喷嘴后回发动机，一路经过加热电磁阀和尿素箱后回发动机。本发明简单实用，设计创新的优点，有利于推广。

Description

一种SCR系统水循环系统
技术领域：
本发明涉及一种SCR系统水循环系统。
背景技术：
随着国内汽车排放标准的升级，SCR系统应用越来越广泛。SCR系统多用于柴油发动机的尾气处理，将尾气中的氮氧化合物还原成氮气和水。然而SCR系统最关键的部件便是尿素喷嘴和尿素箱，如何做好系统零部件的温度控制直接影响SCR系统的使用寿命。
发明内容：
本发明是为了解决上述现有技术存在的问题而提供一种SCR系统水循环系统。
本发明所采用的技术方案有：一种SCR系统水循环系统，包括发动机、前HVAC总成、尿素喷嘴、尿素箱、加热电磁阀和连接管路，所述发动机通过连接管路与前HVAC总成相连，发动机出水，经过前HVAC总成由三通管分两路，一路经过尿素喷嘴后回发动机，一路经过加热电磁阀和尿素箱后回发动机。
进一步地，所述加热电磁阀为常闭型电磁阀。
本发明具有如下有益效果：本发明简单实用，设计创新的优点，有利于推广。
附图说明：
图1为本发明结构图。
具体实施方式：
下面结合附图对本发明作进一步的说明。
如图1所示，本发明公开一种SCR系统水循环系统，包括发动机1、前HVAC总成2、尿素喷嘴3、尿素箱4、加热电磁阀5和连接管路，发动机1通过连接管路与前HVAC总成2相连，发动机1出水，经过前HVAC总成2由三通管分两路，一路经过尿素喷嘴3后回发动机1，一路经过加热电磁阀5和尿素箱4后回发动机1。
本发明增加加热电磁阀5来控制尿素箱4的水循环，加热电磁阀5为常闭型，当温度低于设定值时，电磁阀打开，发动机冷却液对尿素箱4内尿素进行加热，当尿素箱内温度高于设定值时，电磁阀关闭。
本发明一方面利用发动机的冷却液对尿素喷嘴进行冷却，另一方面利用发动机的冷却液对尿素箱内的尿素进行加热。合理利用发动机的冷却液的温度特性对尿素喷嘴进行冷却和对尿素进行加热，达到最佳工作状态，保证碰嘴的使用寿命，该方案原理简单，设计创新，实用性强，值得推广。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以作出若干改进，这些改进也应视为本发明的保护范围。

Claims (2)

1.一种SCR系统水循环系统，其特征在于：包括发动机(1)、前HVAC总成(2)、尿素喷嘴(3)、尿素箱(4)、加热电磁阀(5)和连接管路，所述发动机(1)通过连接管路与前HVAC总成(2)相连，发动机(1)出水，经过前HVAC总成(2)由三通管分两路，一路经过尿素喷嘴(3)后回发动机(1)，一路经过加热电磁阀(5)和尿素箱(4)后回发动机(1)。
2.如权利要求1所述的SCR系统水循环系统，其特征在于：所述加热电磁阀(5)为常闭型电磁阀。
CN201711257744.1A 2017-12-04 2017-12-04 一种scr系统水循环系统 Pending CN108049945A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711257744.1A CN108049945A (zh) 2017-12-04 2017-12-04 一种scr系统水循环系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711257744.1A CN108049945A (zh) 2017-12-04 2017-12-04 一种scr系统水循环系统

Publications (1)

Publication Number Publication Date
CN108049945A true CN108049945A (zh) 2018-05-18

Family

ID=62121565

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711257744.1A Pending CN108049945A (zh) 2017-12-04 2017-12-04 一种scr系统水循环系统

Country Status (1)

Country Link
CN (1) CN108049945A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109915240A (zh) * 2019-03-28 2019-06-21 陕西重型汽车有限公司 一种尿素系统加热冷却系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090229258A1 (en) * 2008-03-05 2009-09-17 Hydraulik-Ring Gmbh Exhaust-Gas Aftertreatment Device
JP2010138773A (ja) * 2008-12-11 2010-06-24 Caterpillar Japan Ltd 排気ガス浄化触媒用還元剤供給装置
CN202531274U (zh) * 2012-03-28 2012-11-14 中国重汽集团济南动力有限公司 一种发动机后处理冷却液循环系统
CN102892985A (zh) * 2010-05-17 2013-01-23 五十铃自动车株式会社 Scr系统
CN104018920A (zh) * 2013-03-01 2014-09-03 康明斯排放处理公司 用于加热尿素喷射系统的系统和技术

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090229258A1 (en) * 2008-03-05 2009-09-17 Hydraulik-Ring Gmbh Exhaust-Gas Aftertreatment Device
JP2010138773A (ja) * 2008-12-11 2010-06-24 Caterpillar Japan Ltd 排気ガス浄化触媒用還元剤供給装置
CN102892985A (zh) * 2010-05-17 2013-01-23 五十铃自动车株式会社 Scr系统
CN202531274U (zh) * 2012-03-28 2012-11-14 中国重汽集团济南动力有限公司 一种发动机后处理冷却液循环系统
CN104018920A (zh) * 2013-03-01 2014-09-03 康明斯排放处理公司 用于加热尿素喷射系统的系统和技术

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109915240A (zh) * 2019-03-28 2019-06-21 陕西重型汽车有限公司 一种尿素系统加热冷却系统

Similar Documents

Publication Publication Date Title
CN103723263B (zh) 一种混合动力电力推进船舶锂电池温度控制系统
CN103344041A (zh) 水循环热泵热水器及控制方法
CN108049945A (zh) 一种scr系统水循环系统
CN202215333U (zh) 汽车热水器
CN106593600A (zh) 用于发动机的排气后处理装置及排气后处理方法
CN203424794U (zh) 一种防止反复加热的饮水机
CN105697106A (zh) 一种用于高效scr的尿素加热装置及其使用方法
CN106150658A (zh) 内燃机车柴油机冷却水系统分离式中冷控制方法
CN203033233U (zh) 防冷凝原油储油箱
CN205477788U (zh) 一种燃气调压设施余压利用系统
CN203756292U (zh) 用于scr系统尿素容器的加热装置
CN204253992U (zh) 自动调温节水水龙头
CN208507204U (zh) 一种反应堆回路
CN203257521U (zh) 泵嘴直喷尿素喷射系统
CN208222620U (zh) 一种应用于湿冷机组的低品质蒸汽供热系统
CN204003022U (zh) 一种尿素罐加热系统
CN201722393U (zh) 皮革加工热水供应控制系统
CN207907532U (zh) 一种改进的空气源热泵两联供系统
CN205137548U (zh) 双口节能生物质灶
CN201803586U (zh) 一种煤炭脱水系统的节能装置
CN202962388U (zh) 一种水循环冷却系统
CN105986940A (zh) 发动机节能启动预热装置
CN202853151U (zh) 真空管太阳能热水器
CN204959552U (zh) 一种搅拌滚筒及多功能养护车
CN204113419U (zh) 汽车尾气波纹管

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180518

RJ01 Rejection of invention patent application after publication