CN105464760B - 一种scr柴油机后处理系统 - Google Patents
一种scr柴油机后处理系统 Download PDFInfo
- Publication number
- CN105464760B CN105464760B CN201510973656.6A CN201510973656A CN105464760B CN 105464760 B CN105464760 B CN 105464760B CN 201510973656 A CN201510973656 A CN 201510973656A CN 105464760 B CN105464760 B CN 105464760B
- Authority
- CN
- China
- Prior art keywords
- diesel engine
- urea
- exhaust pipe
- scr
- engine exhaust
- 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.)
- Active
Links
- 238000012805 post-processing Methods 0.000 title claims abstract description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000004202 carbamide Substances 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- 238000006722 reduction reaction Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims abstract description 3
- 238000005485 electric heating Methods 0.000 claims description 11
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 30
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010304 firing Methods 0.000 abstract description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 14
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229960004424 carbon dioxide Drugs 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring 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
-
- 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]
-
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1404—Exhaust gas temperature
-
- 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
-
- 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
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
本发明涉及一种SCR柴油机后处理系统，包括SCR催化剂，用于将柴油机排气管中的尾气进行还原反应；尿素喷射装置，用于向柴油机排气管中喷射尿素；加热装置，设置于柴油机排气管中，用以对尿素喷射装置喷射的尿素进行加热；控制装置，根据柴油机排气管中的尾气温度以及柴油机的工作状况决定是否对加热模块进行加热，以及加热所需要的功率。本发明的SCR柴油机后处理系统在任何排气温度下都可以使尿素充分水解，使尾气中的氮氧化物能够完全反应生成无害的氮气和水，可以有效降低SCR系统的起燃点，大大缩小尾气的排放死点，从而大大改善系统的效能，满足高规格的排放标准；另外，本发明适用范围广泛，可适用于气助系统和无气助系统。
Description
技术领域
本发明涉及尾气处理领域，尤其涉及一种SCR柴油机后处理系统。
背景技术
SCR柴油机后处理系统是处理柴油机尾气污染的一种重要系统，它主要用于降低尾气中的氮氧化物，具有处理效率高，不影响发动机性能和效率，对柴油中含硫量不敏感等优点。
SCR系统的基本工作原理是：根据发动机的工作状况和尾气排放管的温度，向尾气排放管中喷入适当数量的尿素水溶液，尿素溶液在尾气管内的高温作用下水解成为氨和二氧化碳，在适当催化剂的作用下氨同尾气中的氮氧化物反应生成无害的氮气和水，从而达到消除污染的目的。
现有技术中，尿素的水解在排气管内借助尾气的高温自然发生，或借助催化剂加速。由于尿素水解高度依赖于排气管的温度，当发动机处于低功率运行状态时排气温度比较低，尿素水解缓慢，甚至完全不反应，导致SCR的效能很差甚至完全无效，当尾气中没有足够的氨时氮氧化物难以消除，因而达不到足够的转化率，使得尾气的排放到不到标准而污染环境。
有鉴于上述的缺陷，本设计人，积极加以研究创新，以期创设一种新型结构的SCR柴油机后处理系统，使其更具有产业上的利用价值。
发明内容
为解决上述技术问题，本发明的目的是提供一种SCR柴油机后处理系统，使得在排气温度不够高的情况下仍然有足够量的尿素水解成为氨，从而降低SCR系统的起燃点，即氮氧化物转化率达到50％所需的温度。
本发明的SCR柴油机后处理系统，包括
-SCR催化剂，用于将所述柴油机排气管中的尾气进行还原反应；
-尿素喷射装置，用于向所述柴油机排气管中喷射尿素；
-加热装置，设置于所述柴油机排气管中，用以对所述尿素喷射装置喷射的尿素进行加热；
-控制装置，根据所述柴油机排气管中的尾气温度以及所述柴油机的工作状况决定是否对所述加热模块进行加热，以及加热所需要的功率。
进一步的，所述控制装置包括与所述柴油机及所述加热装置连接的控制器，以及用于检测所述柴油机排气管中温度的温度传感器。
进一步的，所述控制器根据所述温度传感器检测的温度、所述柴油机排气的流量间歇控制所述加热装置进行加热或控制所述加热装置的加热功率。
进一步的，所述尿素喷射装置具有朝向所述加热装置的尿素喷嘴。
进一步的，所述加热装置为螺旋状的电加热管，所述电加热管的两极连接在所述柴油机排气管的管壁上；另外，本发明适用范围广泛，可适用于气助系统和无气助系统。
借由上述方案，本发明的SCR柴油机后处理系统在任何排气温度下都可以使尿素充分水解，使尾气中的氮氧化物能够完全反应生成无害的氮气和水，可以有效降低SCR系统的起燃点，大大缩小尾气的排放死点，从而大大改善系统的效能，满足高规格的排放标准。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。
附图说明
图1是本发明原理框架图；
图2所示为本发明中加热装置、尿素喷嘴与排气管的连接结构示意图。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。
参见图1，本发明一较佳实施例所述的一种SCR柴油机后处理系统，包括SCR催化剂、尿素喷射装置、加热装置、控制装置。SCR催化剂用于将柴油机(即发动机)排气管中的尾气进行还原反应，SCR催化剂使氨同尾气中的氮氧化物反应生成无害的氮气和水；尿素喷射装置用于向柴油机排气管中喷射尿素；加热装置设置于柴油机排气管中，用以在尾气温度较低情况下对尿素喷射装置喷射的尿素进行加热；控制装置根据柴油机排气管中的尾气温度以及柴油机的工作状况决定是否对加热模块进行加热，以及加热所需要的功率。
具体的，控制装置包括与柴油机及加热装置连接的控制器，以及用于检测柴油机排气管中温度的温度传感器，控制器根据温度传感器检测的温度、柴油机排气的流量间歇控制加热装置进行加热或控制加热装置的加热功率。排气的流量可以根据发动机的转速和扭矩推算，也可由发动机直接报告给出，控制器通过CAN总线上读取发动机的相关信息即可对加热装置进行控制。
本发明中，加热装置设置在尿素喷射装置的下游，即尿素喷射装置具有朝向加热装置的尿素喷嘴。
优选的，本发明中的加热装置为连接在柴油机排气管的管壁上呈螺旋状的电加热管，成本低、安装方便。
如图2所示，作为本发明的较佳实施方式，将电加热管30设置为螺旋形状，电加热管30的两极从排气管10的管壁上伸出接电，尿素喷嘴20也从排气管10的管壁上穿入，伸到电加热管30的中间。工作时，尿素喷嘴20向四面喷射出尿素，尿素周围的电加热管30瞬间对其加热，使得刚喷射出的尿素即刻被水解成为氨和二氧化碳，在催化剂的作用下氨同尾气中的氮氧化物反应生成无害的氮气和水，从而达到消除污染的目的。
本发明通过在尿素喷嘴的下游方向加装一个加热装置，该加热装置可以受控制器的控制也可以不受控制，即控制器可以根据温度传感器的读数以及发动机的工作状况决定是否对加热装置进行加热，以及加热所需要的功率，当排气温度足够高的时候可以不必启动加热装置。当排气温度较低，开启加热装置，喷嘴喷出的尿素首先进入加热模块，加热到足够温度使得尿素得到充分水解，与尾气进行完全反应。由于加热装置仅对尿素及少部分流经的尾气加热，因而可以用比较小的功率达到足够高的温度使尿素水解，成本较低。
可见本发明在任何排气温度下都可以使尿素充分水解，使尾气中的氮氧化物能够完全反应生成无害的氮气和水，可以有效降低SCR系统的起燃点，大大缩小尾气的排放死点，从而大大改善系统的效能，满足高规格的排放标准；另外，本发明适用范围广泛，可适用于气助系统和无气助系统。
以上所述仅是本发明的优选实施方式，并不用于限制本发明，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变型，这些改进和变型也应视为本发明的保护范围。
Claims (1)
1.一种SCR柴油机后处理系统，其特征在于：
包括SCR催化剂，用于将所述柴油机排气管中的尾气进行还原反应；尿素喷射装置，用于向所述柴油机排气管中喷射尿素；
加热装置，设置于所述柴油机排气管中，用以对所述尿素喷射装置喷射的尿素进行加热；
控制装置，根据所述柴油机排气管中的尾气温度以及所述柴油机的工作状况决定是否对所述加热模块进行加热，以及加热所需要的功率；
所述尿素喷射装置具有朝向所述加热装置的尿素喷嘴；
所述加热装置为螺旋状的电加热管，所述电加热管的两极连接在所述柴油机排气管的管壁上；所述尿素喷嘴从排气管的管壁上穿入，伸到电加热管的中间；所述尿素喷嘴朝向所述电加热管的一端成L型；
所述控制装置包括与所述柴油机及所述加热装置连接的控制器，以及用于检测所述柴油机排气管中温度的温度传感器；
所述控制器根据所述温度传感器检测的温度、所述柴油机排气的流量控制所述加热装置的加热功率。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973656.6A CN105464760B (zh) | 2015-12-22 | 2015-12-22 | 一种scr柴油机后处理系统 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973656.6A CN105464760B (zh) | 2015-12-22 | 2015-12-22 | 一种scr柴油机后处理系统 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105464760A CN105464760A (zh) | 2016-04-06 |
| CN105464760B true CN105464760B (zh) | 2018-11-27 |
Family
ID=55602856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510973656.6A Active CN105464760B (zh) | 2015-12-22 | 2015-12-22 | 一种scr柴油机后处理系统 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105464760B (zh) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246301B (zh) * | 2016-08-30 | 2019-07-05 | 潍柴动力股份有限公司 | 一种排气温度控制系统及控制方法 |
| CN109083722A (zh) * | 2017-06-14 | 2018-12-25 | 天纳克（苏州）排放系统有限公司 | 发动机排气后处理混合装置及其后处理装置与应用 |
| EP3754164B1 (en) * | 2019-06-18 | 2022-02-09 | Winterthur Gas & Diesel Ltd. | Internal combustion engine and method for reducing particulate matter emissions |
| CN110608286B (zh) * | 2019-09-30 | 2021-08-20 | 潍柴动力股份有限公司 | 一种车辆换挡控制方法及装置 |
| CN113931723A (zh) * | 2021-10-12 | 2022-01-14 | 河北工业大学 | 一种减少scr系统尿素结晶的装置及方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022214A (zh) * | 2010-11-23 | 2011-04-20 | 天津大学 | 通过控制排温实现重型柴油机低排放的方法及实施装置 |
| CN102758673A (zh) * | 2011-04-29 | 2012-10-31 | 北京理工大学 | 高scr转化率排气温控装置 |
| CN104948270A (zh) * | 2014-03-19 | 2015-09-30 | 埃贝斯佩歇排气技术有限责任两合公司 | 排气设备 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010041094A1 (de) * | 2010-09-21 | 2012-03-22 | Robert Bosch Gmbh | Vorrichtung zur Reduktion von Luftschadstoffen, insbesondere von Stickoxiden, im Abgasstrom eines Kraftfahrzeugdieselmotors |
| JP5975320B2 (ja) * | 2011-12-15 | 2016-08-23 | 三菱自動車工業株式会社 | 内燃機関の排気浄化装置 |
| DE102014001418A1 (de) * | 2014-02-01 | 2015-08-06 | Daimler Ag | Verfahren zur Temperatureinstellung einer Abgasnachbehandlungseinrichtung |
-
2015
- 2015-12-22 CN CN201510973656.6A patent/CN105464760B/zh active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022214A (zh) * | 2010-11-23 | 2011-04-20 | 天津大学 | 通过控制排温实现重型柴油机低排放的方法及实施装置 |
| CN102758673A (zh) * | 2011-04-29 | 2012-10-31 | 北京理工大学 | 高scr转化率排气温控装置 |
| CN104948270A (zh) * | 2014-03-19 | 2015-09-30 | 埃贝斯佩歇排气技术有限责任两合公司 | 排气设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105464760A (zh) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105464760B (zh) | 一种scr柴油机后处理系统 | |
| US10060319B2 (en) | Internal combustion engine | |
| CN106246301B (zh) | 一种排气温度控制系统及控制方法 | |
| KR20160110002A (ko) | Scr 장치 | |
| EP3049647B1 (en) | Engine exhaust gas purifier | |
| CN105673159A (zh) | 一种发动机排气系统及使用该排气系统的发动机 | |
| CN103912348A (zh) | 一种电加热的碳酸氢铵干法制氨及计量喷射系统 | |
| CN103939189A (zh) | 一种利用发动机余热加热的碳酸氢铵干法制氨及计量喷射系统 | |
| CN106468202A (zh) | 一种柴油机后处理防结晶加热混合装置 | |
| CN205216582U (zh) | 钢铁烧结烟气综合脱硫、脱硝及去除二噁英的装置 | |
| CN103806991A (zh) | 一种用于柴油发动机的恒温减排节能装置 | |
| CN105697106A (zh) | 一种用于高效scr的尿素加热装置及其使用方法 | |
| CN206092129U (zh) | 一种柴油发动机尾气后处理系统 | |
| JP2013124642A (ja) | 内燃機関の排気浄化装置 | |
| US11708779B2 (en) | Systems and methods for dry chemical reductant insertion in aftertreatment systems | |
| CN104110294A (zh) | 一种用于汽车scr系统的温度控制装置及其控制方法 | |
| CN103511040A (zh) | 一种用于发动机scr的碳酸氢铵干法制氨及计量喷射系统 | |
| JP5915927B2 (ja) | 内燃機関の排気浄化装置 | |
| CN102926847B (zh) | 一种选择性催化还原尿素喷射修正方法、装置及系统 | |
| CN203867671U (zh) | 一种电加热的碳酸氢铵干法制氨及计量喷射系统 | |
| CN210964554U (zh) | 一种链篦机-回转窑球团烟气超低排放系统 | |
| CN210207288U (zh) | 一种可测温的固体颗粒喷枪 | |
| CN203685356U (zh) | 一种用于发动机scr的碳酸氢铵湿法制氨及计量喷射系统 | |
| CN104074577B (zh) | 一种提高柴油机scr系统尿素热解水解效率的方法 | |
| CN202370624U (zh) | 排气后处理装置和汽车 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181018 Address after: 322100 room 601-2, B building, 23 Guangfu East Street, Jiangbei street, Dongyang, Jinhua, Zhejiang. Applicant after: Dongyang future industrial design Co.,Ltd. Address before: 215000 A0902-1, four international science and Technology Park, 1355 Jinji Hu Avenue, Suzhou Industrial Park, Jiangsu Applicant before: SUZHOU PUTIANLAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221230 Address after: Room 1013, Huanghai Building, No. 239, Donger Road, Dongying Development Zone, Shandong 257091 Patentee after: Shandong Zhongke Industry Research Institute Technology Transfer Co.,Ltd. Address before: 322100 room 601-2, B building, 23 Guangfu East Street, Jiangbei street, Dongyang, Jinhua, Zhejiang. Patentee before: Dongyang future industrial design Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Room 218, Block B, Building 21, Ecological Valley, No. 38, Huanghe Road, Dongying Development Zone, Shandong Province, 257091 Patentee after: Shandong Zhongke Industry Research Institute Technology Transfer Co.,Ltd. Address before: Room 1013, Huanghai Building, No. 239, Donger Road, Dongying Development Zone, Shandong 257091 Patentee before: Shandong Zhongke Industry Research Institute Technology Transfer Co.,Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160406 Assignee: Dongying Yuzun Information Technology Co.,Ltd. Assignor: Shandong Zhongke Industry Research Institute Technology Transfer Co.,Ltd. Contract record no.: X2023980042996 Denomination of invention: A post-processing system for SCR diesel engines Granted publication date: 20181127 License type: Common License Record date: 20231010 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Dongying Yuzun Information Technology Co.,Ltd. Assignor: Shandong Zhongke Industry Research Institute Technology Transfer Co.,Ltd. Contract record no.: X2023980042996 Date of cancellation: 20240411 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240418 Address after: No. 195-12 Shengli Road, Kenli District, Dongying City, Shandong Province, 257000 Patentee after: Dongying Juying Energy Co.,Ltd. Country or region after: China Address before: Room 218, Block B, Building 21, Ecological Valley, No. 38, Huanghe Road, Dongying Development Zone, Shandong Province, 257091 Patentee before: Shandong Zhongke Industry Research Institute Technology Transfer Co.,Ltd. Country or region before: China |