CN101312798A - 后校准催化转化器的罐装设备及方法 - Google Patents

后校准催化转化器的罐装设备及方法 Download PDF

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CN101312798A
CN101312798A CNA2006800020136A CN200680002013A CN101312798A CN 101312798 A CN101312798 A CN 101312798A CN A2006800020136 A CNA2006800020136 A CN A2006800020136A CN 200680002013 A CN200680002013 A CN 200680002013A CN 101312798 A CN101312798 A CN 101312798A
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斯科特·M·马丁
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Tenneco Automotive Operating Co Inc
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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
    • F01N3/24—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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    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/03—Catalysts or parts thereof
    • 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
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
    • F01N2350/02—Fitting ceramic monoliths in a metallic housing
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/02—Fitting monolithic blocks into the housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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    • 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49345—Catalytic device making
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53961—Means to assemble or disassemble with work-holder for assembly
    • Y10T29/5397—Means to assemble or disassemble with work-holder for assembly and assembling press [e.g., truss assembling means, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
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Abstract

一种用于组装诸如催化转化器之类的废气处理装置的方法及设备，该方法及设备采用后校准技术来获得支撑垫的预期体积间隙密度，该支撑垫在该装置壳体内环绕载体。测量该垫在压力作用下形成该目标体积间隙密度的厚度并存储该压力，以在将该垫/载体子组件软填充到该壳体内之后，该压力用于挤压该装置壳体从而抵靠该垫。

Description

后校准催化转化器的罐装设备及方法
技术领域
本发明涉及催化转化器的组装，该催化转化器具有由容纳在外壳内的支撑垫环绕的催化剂载体。更具体地说，本发明涉及使间隙体积密度(gap bulk density)在转化器的整个寿命期内能够具有确定完整性的后校准转化器的封装。
背景技术
图6示出用于机动车排气应用的一种已知类型的催化转化器。催化转化器1包括末端敞开的管状薄板金属本体3，金属本体3内部限定用于陶瓷块状的、蜂窝型催化剂载体7的腔5，该催化剂载体具有平坦的末端9和催化剂包覆于其上的、从一端延伸到另一端的许多纵向蜂窝型单元通道11。载体7的中部由环形的、减振的、弹性绝缘支撑垫13环绕，该支撑垫优选地由气密蛭石基材料制成，该气密蛭石基材料遇热会大幅度膨胀。组装时，垫13被压缩到其原始厚度的一半。本体3的相对端部15每个都优选地形成为或模锻为如图所示的部分球形，该部分球形的中央开口的直径比载体7的直径小很多。用于气体流动的端部衬套17和19分别具有管状外末端21和23，用于通过焊接或夹紧或其它方式附连到排气系统管道(未图示)。衬套17和19还分别具有向外张开的环状部分球形内末端凸缘25和27，每个内末端凸缘优选地形成为其半径与该本体端部15的半径相对应，所述内末端凸缘在选定位置上焊接到端部15，从而它们的末端21和23相对于本体3的中心线或轴线具有预期方位。
采用预校准的已知组装方法在向转化器外壳内填充时有可能使支撑垫和/或转化器载体受到剪切损伤。因此，需要一种方法和设备，用于将垫/载体子组件填充到转化器外壳内，然后将转化器罐定径到预定直径以获得支撑垫的预期间隙体积密度，而不会产生采用现有技术的方法所致的填充损伤。
发明内容
因此，制造催化转化器首先应当准备催化剂载体并绕该催化剂载体缠绕衬垫以形成子组件。然后将该子组件置于绕该载体挤压该衬垫的测量站(gauge station)内，并且测量该垫以确定当该转化器最终组装起来时会生成预期间隙体积密度的厚度。随后，为获得该预期间隙体积密度而施加的压力被存储起来以供未来使用。接下来，将该子组件软填充到转化器罐中并传递到定径站，在定径站中，在之前步骤中测量站所确定的压力的作用下，外罐被沿径向向内均匀压缩。在考虑外壳弹回后，对在测量站确定的压力进行调整。
在本发明的另一方面，压力施加到包括由支撑垫环绕的催化剂载体的子组件，其中多个界面台基沿径向抵靠该子组件而施加压力，该压力由分别与每个界面台基相关联的多个测力传感器测量。在施加的压力作用下测量该支撑垫以确定其厚度，调整该压力直到该垫达到会生成预期间隙体积密度的预定厚度。多个界面台基/测力传感器中的每对都具有借助于板簧联接到支架的界面台基，以稳固该测力传感器/界面台基组合。另外，螺旋弹簧将该测力传感器联接到相应的界面台基以进一步稳固该组件。
附图说明
通过阅读下面结合附图的详细说明，本发明的目的和特征将变得更加明显，附图中：
图1是根据本发明的原理设置的转化器组装设备的示意性框图；
图2示出根据本发明的原理组装转化器的方法的各个阶段；
图3示出根据本发明的原理的定径站的相关细节；
图4是根据本发明的原理的测量站的相关部分的侧视图；
图5示出图4所示的测量站中的典型界面台基/测力传感器组合装置的细节；以及
图6是可根据本发明的原理组装的催化转化器的侧视图。
具体实施方式
参照图1，子组件100包括环绕催化剂载体104的支撑垫102，该子组件通过例如胶纸带暂时组装起来。然后子组件100被插入套中，该套将子组件100转移到测量站106。接着测量站106将子组件102压缩到一平均压力，该平均压力会生成用于支撑垫的预期间隙体积密度。常规转化器具有例如40psi的目标压力，该目标压力通过实验数据与每立方厘米0.83克的间隙体积密度相关。基于每立方厘米0.83克的理论、间隙体积密度和所获得的测量压缩的位移值，所获得的垫间隙与较大的垫间隙和诸如每立方厘米0.953克的相应的间隙体积密度值相关。然后将用于获得测量垫宽的压力被存储在例如控制器108中用于定径站110。来自测量站106的反馈被传送到定径站，用于将子组件100最终装配在外壳或罐202内。
测量之后，子组件100被“软填充”到转化器外壳或罐202中，然后被如图2所示地转移到定径站，以便绕该支撑垫均匀地沿径向向内挤压从而将子组件100容纳在罐202内。在定径站所使用的压力由测量工序得到，并且该压力会产生不包括通常使用的端盖的成品。
美国专利第5,118,476号教导了一种定径装备，通过引用将该专利文献纳于本申请中。图3示出476号专利的附图之一。如图3所示，两个或两个以上具有圆形成形面41的挤压模39绕转化器筒15的中部29定位，同时该挤压模被沿径向向内驱动，从而导致该管壁产生均匀的径向变形并被驱动到与衬垫13挤压接触。每个成形面41的轴向宽度选定为与该垫的轴向宽度大体上相同。如上所述，施加到挤压模39的压力通过之前的测量工序确定。
图1所示的测量站106能够采用多种常规测量技术，以便确定挤压作用下的预期支撑垫宽度。这些技术包括用于该支撑垫的激光测量、质量测量或阴影测量。
对支撑垫/催化剂载体100的挤压通过图4所示的设备实现。通过多个、例如八个分段的界面台基402a-h沿径向向内对支撑垫102和催化剂载体104施加均匀的压力作用，每个界面台基402a-h与压力测量测力传感器404a-h相联接。
为了避免会导致测力传感器读出错误压力读数的扭转或枢转状况，每个测力传感器/界面台基组件采用图5所示的稳固装置。板簧502借助于托架506将每个界面台基402联接到车架支撑结构。为了进一步稳固该装置，螺旋弹簧504将每个测力传感器404联接到与其相对应的界面台基402。在这种装置中，每个测力传感器与其相应的界面台基“成直角”，以消除可能导致错误压力读数的扭转状况。
因此，本发明使用后校准技术提供催化转化器的组装及定径，来避免在最初的填料工序中发生剪切损伤。通过使用试探得到的数据，适当的压力和挤压作用下的垫厚度得以确定，所述压力及垫厚度会产生落入预定容许范围内的间隙体积密度。相信根据本文描述的发明组装转化器时，无需为获得适当的间隙体积密度而进一步测试该转化器。
虽然通过示例性实施方式的详细说明描述了本发明，但该示例性实施方式仅用作示例。

Claims (3)

1.一种设备，用于将均匀的、沿径向向内的压力施加到可压缩支撑垫上，所述可压缩支撑垫环绕用于废气处理装置的载体，所述设备包括：
多个界面台基，其限定适于接纳所述支撑垫和所述载体的空间；
每个台基与压力测量测力传感器相关联，并且每个台基能够沿径向向内移动抵靠所述支撑垫，其中，每个界面台基借助于板簧联接到支架。
2.根据权利要求1所述的设备，其中，每个界面台基借助于螺旋弹簧联接到与其相关的测力传感器。
3.根据权利要求1所述的设备，其中，所述废气处理装置包括催化转化器，所述载体包括含催化剂的构件，并且所述支撑垫包括减振的、弹性的、绝缘支承体。
CN200680002013A 2005-01-12 2006-01-12 后校准催化转化器的罐装设备及方法 Expired - Fee Related CN100584481C (zh)

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CN112362493A (zh) * 2020-09-30 2021-02-12 中汽研（天津）汽车工程研究院有限公司 一种薄板热压缩试验控制方法

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DE602004005591T2 (de) * 2003-05-13 2007-12-06 Hess Engineering Inc., Niles Verfahren und vorrichtung zur herstellung eines katalysators
JP4549058B2 (ja) * 2003-12-26 2010-09-22 株式会社三五 柱体保持装置の製造方法
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DE102007026810A1 (de) * 2007-06-06 2008-12-11 J. Eberspächer GmbH & Co. KG Herstellungsverfahren für Abgasbehandlungseinrichtungen, wie z.B. Abgaskatalysatoren und Partikelfilter
US20090113709A1 (en) * 2007-11-07 2009-05-07 Eberspaecher North America, Inc. Method of manufacturing exhaust aftertreatment devices
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BRPI0606725A2 (pt) 2009-07-14
KR101214883B1 (ko) 2012-12-24
WO2006076469A3 (en) 2007-11-22
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US20060150382A1 (en) 2006-07-13
GB2436491A (en) 2007-09-26
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US7451660B2 (en) 2008-11-18
WO2006076469A2 (en) 2006-07-20

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