CN108952902A - 一种柴油发动机scr系统喷射装置用防堵塞机构 - Google Patents

一种柴油发动机scr系统喷射装置用防堵塞机构 Download PDF

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CN108952902A
CN108952902A CN201810785626.6A CN201810785626A CN108952902A CN 108952902 A CN108952902 A CN 108952902A CN 201810785626 A CN201810785626 A CN 201810785626A CN 108952902 A CN108952902 A CN 108952902A
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filter
filter chamber
chamber
filter cavity
filtering
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高培海
鞠焕鹏
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Shandong Aytek Environmental Polytron Technologies Inc
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Shandong Aytek Environmental Polytron Technologies Inc
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Priority to CN201810785626.6A priority Critical patent/CN108952902A/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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1426—Filtration 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • 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

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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)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

本发明公开了一种柴油发动机SCR系统喷射装置用防堵塞机构，包括过滤腔体、过滤腔盖、过滤腔活塞、滤芯总成和透气阀，所述过滤腔体顶部凸起上安装有透气阀，所述透气阀周围位于滤腔体顶部安装有过滤腔盖，所述过滤腔体内部靠上位置通过卡合在过滤腔体顶部的过滤腔皮碗安装有过滤腔活塞，所述过滤活塞顶部安装有顶在过滤腔体顶部的过滤腔活塞弹簧。本发明通过防堵塞结构的设计，有效避免了喷射装置存在的结构复杂、成本高和泄漏风险大的问题，降低了SCR系统故障率，提高了可靠性，所以具备巨大的社会效益和经济效益。

Description

一种柴油发动机SCR系统喷射装置用防堵塞机构
技术领域
本发明属于一种柴油发动机配件，具体说是一种柴油发动机SCR系统喷射装置用防堵塞机构。
背景技术
普通SCR还原剂直喷式计量喷射装置，直接将还原剂以高压力喷入排气管内，该装置由供给模块和计量模块组成，该装置供给模块包供给模块和防冻结构。当环境温度低于还原剂冰点时，停机后防冻结构防止还原剂结冰体积膨胀破坏流道，从而保护供给模块结构。
但喷射装置在使用过程中，容易形成堵塞，不仅会降低喷射装置的使用寿命，导致SCR系统故障率高，而且存在安全隐患，容易引发安全事故。
发明内容
本发明的目的便是提供一种柴油发动机SCR系统喷射装置用防堵塞机构。
为实现上述目的，本发明的技术方案为：一种柴油发动机SCR系统喷射装置用防堵塞机构，包括过滤腔体、过滤腔盖、过滤腔活塞、滤芯总成和透气阀，所述过滤腔体顶部凸起上安装有透气阀，所述透气阀周围位于过滤腔体顶部安装有过滤腔盖，所述过滤腔体内部靠上位置通过卡合在过滤腔体顶部的过滤腔皮碗安装有过滤腔活塞，所述过滤活塞顶部安装有顶在过滤腔体顶部的过滤腔活塞弹簧，所述过滤活塞下方位于过滤腔体内部通过O型圈安装有过滤腔填充橡胶，所述过滤腔填充橡胶周围安装有滤芯总成，所述过滤腔皮碗通过过滤腔填充环固定在过滤腔体上。
由于采用上述技术方案，本发明的有益效果为：本发明通过防堵塞结构的设计，有效避免了喷射装置存在的结构复杂、成本高和泄漏风险大的问题，降低了SCR系统故障率，提高了可靠性，所以具备巨大的社会效益和经济效益。
附图说明
现结合附图对本发明做进一步说明。
图1为本发明的结构示意图。
图中：1、过滤腔体，2、过滤腔盖，3、过滤腔活塞，4、滤芯总成，5、透气阀，6、过滤腔皮碗，7、过滤腔活塞弹簧，8、O型圈，9、过滤腔填充橡胶，10、过滤腔填充环。
具体实施方式
如图1所示，本发明包括过滤腔体1、过滤腔盖2、过滤腔活塞3、滤芯总成4和透气阀5，所述过滤腔体1顶部凸起上安装有透气阀5，所述透气阀5周围位于过滤腔体1顶部安装有过滤腔盖2，所述过滤腔体1内部靠上位置通过卡合在过滤腔体1顶部的过滤腔皮碗6安装有过滤腔活塞3，所述过滤活塞3顶部安装有顶在过滤腔体1顶部的过滤腔活塞弹簧7，所述过滤活塞3下方位于过滤腔体1内部通过O型圈8安装有过滤腔填充橡胶9，所述过滤腔填充橡胶9周围安装有滤芯总成4，所述过滤腔皮碗6通过过滤腔填充环10固定在过滤腔体1上。
工作原理：在过滤腔盖2内侧与过滤腔皮碗6之间预留过滤腔体1内侧还原剂结冰膨胀排出气体的空间，当环境温度低于还原剂冰点时，过滤腔体1内部还原剂结冰膨胀，挤压过滤腔皮碗6往外变形 ，经透气阀5排出多余气体；当环境温度高于还原剂冰点时，挤压变形的过滤腔活塞弹簧7回弹，使过滤腔皮碗6回到原状态；此种结构避免了还原剂结冰膨胀使过滤腔产生破裂 ，保证了设备的正常运行。
以上内容是结合具体的优选实施方式对本发明所作的详细说明，不能认定本发明的具体实施方式只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明所提交的权利要求书确定的专利保护范围。

Claims (1)

1.一种柴油发动机SCR系统喷射装置用防堵塞机构，其特征在于：包括过滤腔体、过滤腔盖、过滤腔活塞、滤芯总成和透气阀，所述过滤腔体顶部凸起上安装有透气阀，所述透气阀周围位于过滤腔体顶部安装有过滤腔盖，所述过滤腔体内部靠上位置通过卡合在过滤腔体顶部的过滤腔皮碗安装有过滤腔活塞，所述过滤活塞顶部安装有顶在过滤腔体顶部的过滤腔活塞弹簧，所述过滤活塞下方位于过滤腔体内部通过O型圈安装有过滤腔填充橡胶，所述过滤腔填充橡胶周围安装有滤芯总成，所述过滤腔皮碗通过过滤腔填充环固定在过滤腔体上。
CN201810785626.6A 2018-07-17 2018-07-17 一种柴油发动机scr系统喷射装置用防堵塞机构 Pending CN108952902A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112090276A (zh) * 2020-08-28 2020-12-18 山东方大清洁能源科技有限公司 一种用于scr脱硝的雾化喷射装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562229A (zh) * 2010-12-14 2012-07-11 德国海利特有限公司 Scr-废气后处理装置
CN104582811A (zh) * 2012-08-30 2015-04-29 曼胡默尔有限公司 过滤器滤芯和过滤器设备
CN105909351A (zh) * 2016-05-31 2016-08-31 苏州新力迈特汽车系统有限公司 一种汽车scr后处理系统用尿素滤清器
CN207598325U (zh) * 2017-03-20 2018-07-10 天纳克（苏州）排放系统有限公司 尾气后处理系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562229A (zh) * 2010-12-14 2012-07-11 德国海利特有限公司 Scr-废气后处理装置
CN104582811A (zh) * 2012-08-30 2015-04-29 曼胡默尔有限公司 过滤器滤芯和过滤器设备
CN105909351A (zh) * 2016-05-31 2016-08-31 苏州新力迈特汽车系统有限公司 一种汽车scr后处理系统用尿素滤清器
CN207598325U (zh) * 2017-03-20 2018-07-10 天纳克（苏州）排放系统有限公司 尾气后处理系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112090276A (zh) * 2020-08-28 2020-12-18 山东方大清洁能源科技有限公司 一种用于scr脱硝的雾化喷射装置

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