CN103842125A - 使排气装置绝缘的方法 - Google Patents
使排气装置绝缘的方法 Download PDFInfo
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- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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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
- F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
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- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
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- F01N2310/00—Selection of sound absorbing or insulating material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2310/00—Selection of sound absorbing or insulating material
- F01N2310/14—Wire mesh fabric, woven glass cloth or the like
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Abstract
本发明提供一种用于向排气后处理或声学装置提供外绝缘的方法,包括以下步骤:(a)在装置的外部周围牢固固定绝缘毯;(b)在绝缘毯周围牢固固定箔薄片;(c)通过编织或交织中的选定一个将多根线互连成在轴向定向的套筒,由此在轴向延伸套筒以使套筒在径向向内偏压;(d)在箔薄片周围定位线套筒;(e)将线套筒的一端焊接到与绝缘毯的一端相邻的装置上,(f)在轴向拉套筒的另一端以足以在径向向内偏压套筒以向绝缘毯施加压缩力;以及(g)将套筒的另一端焊接到与绝缘毯的另一端相邻的所述装置上。
Description
相关申请的交叉引用
不适用。
政府资助研发
不适用。
微缩胶片/版权参考
不适用。
技术领域
本发明涉及利用外绝缘毯的排气后处理和/或声学***以及其中所使用的装置。
背景技术
绝热毛层/絮垫(batt)和毯用于排气***中以便向该***的声学和后处理装置提供绝热来控制到该装置和从该装置的热交换。已知例如将绝热毯放置于这样的装置的相邻壁表面之间,其中绝热毯的材料被压缩以提供所希望的材料安装密度从而经由在毯与相邻壁表面之间的摩擦力帮助维持绝热毯在其安装位置。这样的结构在Keith Olivier等人2010年1月29日提交的名称为“Method of Producing an
Insulated Exhaust Device”的美国序列号No. 12/696,347中示出,其公开内容以引用的方式合并到本文中。还已知在这样的排气***装置的外部周围设置绝热毯。
毯的绝热性质特别地取决于毯的密度,并且这样的装置的适当设计需要考虑毯的密度。然而,可能难以确保提供并且维持这样的毯的适当密度/压缩,特别是对于设置于装置外侧上的外绝缘毯而言。
本发明针对于克服上文所描述的问题中的一个或多个。
发明内容
在本发明的一方面,提供一种向排气后处理或声学装置提供外绝缘的方法,包括以下步骤:(a)在该装置周围牢固固定绝缘材料薄片;(b)将线套筒定位于薄片和装置上,套筒的线被构造成由此使套筒的轴向延伸将套筒朝向更小套筒直径偏压;(c)将套筒的一端与薄片一端相邻而牢固固定;(d)相对于套筒在轴向拉所述套筒的另一端以绕绝缘材料薄片在径向向内偏压所述套筒;以及(e)将套筒的另一端与薄片的另一端相邻而牢固固定。
在本发明的此方面的一形式中,线被纺织在一起。在另一形式中,线被编织。
在本发明的此方面的另一形式中,套筒拉动步骤包括充分拉另一套筒端部由此使得套筒的径向向内偏压向绝缘材料施加压缩力。
本发明的此方面的另一形式包括了在套筒定位步骤之前在绝缘材料薄片周围牢固固定箔薄片,其中在定位步骤中将线套筒定位于箔薄片上。在另一形式,箔薄片为不锈钢。在另一形式中,箔薄片牢固固定步骤还包括了在其边缘周围焊接箔薄片以在绝缘材料薄片周围牢固固定箔薄片。
在本发明的此方面的又一形式中,牢固固定步骤包括了将线套筒焊接到绝缘装置的相反端。
在本发明的此方面的又一形式中,该装置具有金属外壳并且绝缘材料薄片牢固固定步骤在壳周围牢固固定了绝缘材料薄片。在另一形式,装置外壳基本上为圆柱形并且套筒拉动步骤包括了充分拉另一套筒端部由此使得套筒的径向向内偏压向绝缘材料施加基本上均匀的压缩力。
在本发明的另一方面,提供一种用来向排气后处理或声学装置提供外绝缘的方法,包括以下步骤:(a)在装置的外部周围牢固固定一种绝缘毯;(b)在绝缘毯周围牢固固定箔薄片;(c)通过编织或交织中的选定一个将多根线互连成在轴向定向的套筒,由此在轴向延伸套筒以将套筒在径向向内偏压;(d)在箔薄片周围定位线套筒;(e)将线套筒的一端与绝缘毯的一端相邻地牢固固定;(f)在轴向拉所述套筒的另一端以以使套筒充分在径向向内偏压以向绝缘毯施加压缩力;以及(g)将套筒的另一端与绝缘毯的另一端相邻地牢固固定。
在本发明的此方面的一形式中,箔薄片为不锈钢。
在本发明的此方面的另一形式中,箔薄片牢固固定步骤包括了在其边缘周围焊接箔薄片以在绝缘毯周围牢固固定箔薄片。
在本发明的此方面的又一形式中,牢固固定步骤包括了将线套筒焊接于绝缘毯的相反端处。
在本发明的此方面的又一形式中,装置具有金属外壳并且绝缘毯牢固固定步骤包括在壳周围牢固固定了绝缘材料薄片。在另一形式,装置外壳基本上为圆柱形并且套筒拉动步骤包括了充分拉另一套筒端部由此使得套筒的径向向内偏压向绝缘材料施加基本上均匀压缩力。
通过阅读整个说明书,包括所附权利要求和附图,本发明的其它目的、特点和优点将会变得显而易见。
附图说明
图1为大体上示出可根据本发明而绝缘的圆柱形装置,诸如排气后处理或声装置的透视图;
图2示出了在图1的装置周围包裹一种外毯的步骤;
图3示出了在图2所示的外毯中所包裹的图1装置周围包裹一种箔的步骤;
图4示出了通过焊接箔边缘来牢固固定图3的箔的步骤;
图5示出了将线套筒定位于图1的装置上的图2和图3的毯和箔上的步骤;
图6至图7示出了将图5的线套筒一端牢固固定到图1的装置的一端的步骤;
图8示出了在图8的毯和箔包裹的装置上在轴向拉所述线套筒的步骤;以及
图9示出将线套筒的另一端牢固固定到装置的另一端上的步骤。
具体实施方式
本发明可用于例如排气***诸如柴油排气后处理***中以处理来自柴油燃烧过程(例如,柴油压缩发动机)的排气。排气将通常包含氮氧化物(NOx),诸如一氧化氮(NO)和二氧化氮(NO2)等;微粒物质(PM);烃类;一氧化碳(CO);以及其它燃烧副产物。该***可以包括一个或多个排气声学和/或后处理装置或部件。这样的装置的示例包括催化转化器、柴油机氧化催化剂、柴油机微粒过滤器、气体微粒过滤器、稀燃NOX捕集器、选择性催化还原单块、燃烧器、歧管、连接管、消音器、共振器、尾管、排放控制***封闭箱、绝缘环、绝缘端锥、绝缘端帽、绝缘入口管、和绝缘出口管,全都具有任何截面几何结构,其中的许多为已知的。
本领域技术人员将意识到前述装置中的某些可以严格地为带中央核心的金属部件,排气穿过中央核心流动,而这些装置中的其它一些可包括呈陶瓷单块结构和/或纺织金属结构形式的核心,排气通过核心流动。这些装置常规地用于机动车辆(柴油或汽油)、建筑装备、机车发动机应用(柴油或汽油)、船用发动机应用(柴油或汽油)、小型内燃机(柴油或汽油)和固定式发电(柴油或汽油)中。
本发明针对于在这样的装置的外部周围提供适当绝缘,其中装置本身具有相对较硬的外壳,通常为圆柱形金属管壳/罐。
图1以简化形式示出了用于诸如上文所描述的***中的装置20的一个示例(例如,管壳状单块排放控制部件),呈诸如在Olivier等人的美国序列号No. 12/696,347中示出的圆柱形催化单元的形式,美国序列号No. 12/696,347 的公开以引用的方式合并到本文中。如本文所描述,该装置20可具有催化核心、安装垫、圆柱形内壳体或管壳、绝热毯或毛层、和圆柱形外壳体30。外壳体30(或壳或护套)通常相对较刚硬并且为圆柱形,诸如金属管壳。核心通常可为具有单块结构的陶瓷基板,上面涂布着催化剂并且将通常具有椭圆形或圆形截面。但应意识到,装置20的内部的细节可具有适合于如上文所描述的***的任何构造,其中,需要装置20的外绝缘。
根据本发明,外毯40包裹于外壳体30周围以便基本上包封所述壳体30。
应了解到,本发明可有利地用于根据装置20和其中其所操作的***的需要而适于提供合适绝缘的任何毯。例如,毯40可合适地由硅石、e-玻璃、煅烧硅石、多晶体等形成。因而,虽然并不限于此,可结合本发明有利地使用的合适外毯40的一个特定实施例可由硅石纤维绝缘材料制成,硅石绝缘纤维材料具有大于65%并且在优选实施例中大于95%并且在特别优选实施例中大于98%的SiO2的重量百分比。这样的材料为已知的并且可为市售的,且一个合适的示例由BGF Industries, Inc.以商标名称SilcoSoft®供应,且另一合适的示例由ASGLAWO technofibre GmbH以商标名称Asglasil®供应。这种材料通常成卷供应,且在已从卷取得材料后,个别毡层40被冲切为用于相对应装置20的适当长度和宽度。在一优选形式中,毯40可具有毯40的硅石纤维绝缘材料的0.18克/立方厘米至0.30克/立方厘米的平均安装密度。毯28也可经受热处理以实现硅石纤维绝缘材料的煅烧。
根据本发明的一有利实施例,外毯40合适地包裹于装置20的周围,如图2中由箭头所示,并且然后合适地牢固固定就位。之后,合适覆盖物44,诸如不锈钢箔薄片,同样包裹于外毯40周围,如图3中由箭头所示,其中也通过如图4中由焊接工具48大体上指示而焊接所述端部和接缝,来将覆盖物44合适地牢固固定就位。
然后将线套筒50定位于箔覆盖物44上。套筒50包括合适的线,线被合适地编织或纺织在一起以形成在两端上打开的管状袜型结构。套筒50具有未偏压的内径TSLEEVE ID,内径TSLEEVE ID优选地略大于牢固固定于外毯40上的箔覆盖物44的外径DFOIL OD,能允许线套筒50在箔覆盖物44上相对容易地滑动,如图5中由箭头所示。
形成所述套筒50的线合适地互连(例如,通过纺织或编织)从而使得当套筒50在轴向(例如,图5中的箭头方向)延伸(拉伸)时线所形成的套筒50将朝向更小的筒直径偏压。
当线套筒50定位于箔覆盖物44上时(参看图6),套筒50的一端被压缩并且被合适地牢固固定到装置20的一端,例如通过焊接(参看图7)。
在线套筒50的一端合适地牢固固定到装置20上的情况下,将张力施加到线套筒50的另一端以在轴向拉伸所述套筒50(参看图9中的箭头52)。由于先前所描述的形成所述套筒50的线的编织/纺织构造,这种拉伸使得套筒50在径向向内收缩从而使得其内径紧缩以便在径向向内抵靠所述箔覆盖物44的外表面偏压来由此在箔覆盖物44上提供张力。
当拉伸所述线套筒50以便在箔覆盖物44上提供所需张力时,与毯40的另一端相邻而压缩了套筒50的相反端(参看图8)并且将其合适地牢固固定到装置20的另一端(例如,通过焊接,参看图9)以便维持所希望的轴向张力(和相关的径向向内偏压)。
当这样组装时,应意识到,线套筒50将向箔覆盖物44提供机械保护,并且与外毯40和箔覆盖物44协同,将向装置20提供永久外绝缘。另外,线套筒50将在箔覆盖物44周围施加张力以帮助将箔覆盖物44牢固固定在所希望的构造中,并且也将通过箔覆盖物44向下层外毯40施加较小的、基本上均匀的压缩以在使用期间确保外毯40保持合适构造,尽管其将受到广泛振动、移动和其它力。
还应意识到,虽然在本文中已关于呈例如柴油机压缩发动机形式的柴油机燃烧过程而描述了本发明,本发明可在其它类型燃烧过程的废气***中所用的装置中使用,包括其它类型的内燃机,包括例如使用汽油或其它替代燃料的内燃机。
Claims (16)
1.一种向排气后处理或声学装置提供外绝缘的方法,所述方法包括以下步骤:
在所述装置周围牢固固定绝缘材料薄片;
将线套筒定位于所述薄片和装置上,所述套筒的线构造成由此使所述套筒的轴向延伸将所述套筒朝向更小套筒直径偏压;
将所述套筒的一端与所述薄片一端相邻地牢固固定;
相对于所述套筒在轴向拉所述套筒的另一端以在所述绝缘材料薄片周围使所述套筒在径向向内偏压;以及
将所述套筒的另一端与所述薄片的另一端相邻地牢固固定。
2.根据权利要求1所述的方法,其中,所述线纺织在一起。
3.根据权利要求1所述的方法,其中,所述线为编织的。
4.根据权利要求1所述的方法,其中,所述套筒拉动步骤包括充分拉所述另一套筒端部由此使得所述套筒的所述径向向内偏压向所述绝缘材料施加压缩力。
5.根据权利要求1所述的方法,其还包括:在所述套筒定位步骤之前在所述绝缘材料薄片周围牢固固定箔薄片,其中在所述定位步骤中将所述线套筒定位于所述箔薄片上。
6.根据权利要求5所述的方法,其中,所述箔薄片为不锈钢。
7.根据权利要求5所述的方法,其中,所述箔薄片牢固固定步骤还包括在其边缘周围焊接所述箔薄片以在所述绝缘材料薄片周围牢固固定所述箔薄片。
8.根据权利要求1所述的方法,其中所述牢固固定步骤包括将所述线套筒焊接到所述绝缘装置的相反端。
9.根据权利要求1所述的方法,其中所述装置具有金属外壳并且所述绝缘材料薄片牢固固定步骤包括在所述壳周围牢固固定所述绝缘材料薄片。
10.根据权利要求9所述的方法,其中,所述装置外壳基本上为圆柱形并且所述套筒拉动步骤包括充分拉所述另一套筒端部由此使得所述套筒的所述径向向内偏压向所述绝缘材料施加基本上均匀压缩力。
11.一种向排气后处理或声学装置提供外绝缘的方法,所述方法包括以下步骤:
在所述装置的外部周围牢固固定绝缘毯;
在所述绝缘毯周围牢固固定箔薄片;
通过编织或交织中的选定一个将多根线互连成在轴向定向的套筒,由此在轴向延伸所述套筒以将所述套筒在径向向内偏压;
在所述箔薄片周围定位所述线套筒;
将所述线套筒的一端与所述绝缘毯的一端相邻地牢固固定;
在轴向拉所述套筒的另一端以足以在径向向内偏压所述套筒以向所述绝缘毯施加压缩力;以及
将所述套筒的另一端与所述绝缘毯的另一端相邻地牢固固定。
12.根据权利要求11所述的方法,其中,所述箔薄片为不锈钢。
13.根据权利要求11所述的方法,其中,所述箔薄片牢固固定步骤还包括在其边缘周围焊接所述箔薄片以在所述绝缘毯周围牢固固定所述箔薄片。
14.根据权利要求11所述的方法,其中,所述牢固固定步骤包括将所述线套筒焊接于所述绝缘毯的相反端处。
15.根据权利要求11所述的方法,其中,所述装置具有金属外壳并且所述绝缘毯牢固固定步骤在所述壳周围牢固固定所述绝缘毯。
16.根据权利要求15所述的方法,其中,所述装置外壳基本上为圆柱形并且所述套筒拉动步骤包括充分拉所述另一套筒端部由此使得所述套筒的所述径向向内偏压向所述绝缘毯施加基本上均匀压缩力。
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US13/179,982 US8100315B1 (en) | 2011-07-11 | 2011-07-11 | Method of insulating an exhaust device |
US13/179982 | 2011-07-11 | ||
PCT/US2011/065507 WO2013009344A1 (en) | 2011-07-11 | 2011-12-16 | Method of insulating an exhaust device |
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JP (1) | JP2014526011A (zh) |
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EP2731750A1 (en) | 2014-05-21 |
BR112013028565A2 (pt) | 2017-01-17 |
US8100315B1 (en) | 2012-01-24 |
EP2731750A4 (en) | 2015-05-20 |
KR20140035894A (ko) | 2014-03-24 |
WO2013009344A1 (en) | 2013-01-17 |
JP2014526011A (ja) | 2014-10-02 |
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