CN111520217A - 一种三元催化转化器加热装置 - Google Patents

一种三元催化转化器加热装置 Download PDF

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Publication number
CN111520217A
CN111520217A CN202010267476.7A CN202010267476A CN111520217A CN 111520217 A CN111520217 A CN 111520217A CN 202010267476 A CN202010267476 A CN 202010267476A CN 111520217 A CN111520217 A CN 111520217A
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China
Prior art keywords
catalytic converter
way catalytic
silicon carbide
controller
infrared heating
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CN202010267476.7A
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English (en)
Inventor
徐元利
张毓昕
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Tianjin University of Science and Technology
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Tianjin University of Science and Technology
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Priority to CN202010267476.7A priority Critical patent/CN111520217A/zh
Publication of CN111520217A publication Critical patent/CN111520217A/zh
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    • 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
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • 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
    • F01N3/101—Three-way catalysts
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors

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  • 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)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

本发明涉及一种三元催化转化器加热装置，由三元催化转化器壳体、载体、碳化硅红外加热管、控制器和导线组成，其中碳化硅红外加热管通过导线与控制器串联连接。碳化硅红外加热管嵌入在三元催化转化器壳体内部，用来加热镀在载体上的金属催化剂，并使催化剂产生高频电流；与碳化硅红外加热管相连的是控制器，用来控制红外线的发射。本发明能使三元催化转化器迅速达到起燃温度，从而提高三元催化转化器的效率，获得较好的尾气净化效果。

Description

一种三元催化转化器加热装置
技术领域：
本发明涉及内燃机尾气后处理领域，特别是涉及一种三元催化转化器加热装置。
背景技术：
目前，汽车排放污染物已成为我国大中城市大气环境的主要污染源之一，汽油机的主要污染物包括一氧化碳(CO)、碳氢化合物(HC)、氮氧化物(NOX)。日益严格的排放法规对汽车排放提出了很高的要求，对于汽油机，除前处理和机内净化催化转化技术外，三元催化转化器作为降低其排气污染的后处理最有效的措施，已受到了各国的重视，然而三元催化转化器起燃温度较高，在汽油机冷启动大约2min后才能达到此温度，而此时的排放已占到整个循环的80％。
发明内容：
针对上述技术的不足，本发明的目的在于提供一种三元催化转化器加热装置，该装置主要是在冷启动的工况下，通过碳化硅红外加热管加热三元催化转化器中的金属催化剂，使三元催化转化器迅速达到起燃温度，从而提高三元催化转化器的效率。
本发明的技术方案如下：
一种三元催化转化器加热装置，由三元催化转化器壳体、载体、碳化硅红外加热管、控制器和导线组成，其中碳化硅红外加热管通过导线与控制器串联连接。
较佳地，碳化硅红外加热管嵌入在三元催化转化器壳体内部，用来加热镀在载体上的金属催化剂，并使催化剂产生高频电流。
优选的，连接在碳化硅红外加热管下游的是控制器，用来控制红外线的发射。
附图说明：
图1是本发明的一个实施例的结构示意图；
图中：1-三元催化转化器壳体，2-载体，3-碳化硅红外加热管，4-控制器，5-导线。
具体实施方式：
以下结合附图对本发明进行具体说明。如图1所示，作为本发明的一个具体实施例，所述红外线加热三元催化转化器装置，由三元催化转化器壳体1、载体2、碳化硅红外加热管3、控制器4和导线5组成，其中碳化硅红外加热管3通过导线5与控制器4串联连接。
较佳地，碳化硅红外加热管3嵌入在三元催化转化器壳体1内部，用来加热镀在载体2上的金属催化剂，并使催化剂产生高频电流。
优选的，连接在碳化硅红外加热管3下游的是控制器4，用来控制红外线的发射。

Claims (3)

1.一种三元催化转化器加热装置，其特征在于：由三元催化转化器壳体、载体、碳化硅红外加热管、控制器和导线组成，其中碳化硅红外加热管通过导线与控制器串联连接。
2.根据权利要求1所述的三元催化转化器加热装置，其特征在于：所述碳化硅红外加热管嵌入在三元催化转化器壳体内部，用来加热镀在载体上的金属催化剂，并使催化剂产生高频电流。
3.根据权利要求2所述的三元催化转化器加热装置，其特征在于：连接在碳化硅红外加热管下游的是控制器，用来控制红外线的发射。
CN202010267476.7A 2020-04-02 2020-04-02 一种三元催化转化器加热装置 Withdrawn CN111520217A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113634122A (zh) * 2021-08-11 2021-11-12 柳州利和排气控制系统有限公司 一种提高低温状态下三元催化的碳排放净化装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113634122A (zh) * 2021-08-11 2021-11-12 柳州利和排气控制系统有限公司 一种提高低温状态下三元催化的碳排放净化装置

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