CN104053490A - 用于柴油发动机的废气脱硝装置 - Google Patents

用于柴油发动机的废气脱硝装置 Download PDF

Info

Publication number
CN104053490A
CN104053490A CN201380005455.6A CN201380005455A CN104053490A CN 104053490 A CN104053490 A CN 104053490A CN 201380005455 A CN201380005455 A CN 201380005455A CN 104053490 A CN104053490 A CN 104053490A
Authority
CN
China
Prior art keywords
imaginary
framework
main part
diesel engine
circle
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.)
Granted
Application number
CN201380005455.6A
Other languages
English (en)
Other versions
CN104053490B (zh
Inventor
田中博仲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Publication of CN104053490A publication Critical patent/CN104053490A/zh
Application granted granted Critical
Publication of CN104053490B publication Critical patent/CN104053490B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • 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
    • 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
    • F01N13/009—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 two or more separate purifying devices arranged in series
    • F01N13/0097—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 two or more separate purifying devices arranged in series the purifying devices are arranged in a single 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
    • 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
    • F01N13/011—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 two or more purifying devices arranged in parallel
    • F01N13/017—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 two or more purifying devices arranged in parallel the purifying devices are arranged in a single 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation 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
    • 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
    • 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
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/16—Chambers with particular shapes, e.g. spherical
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
    • 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]
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

在容器主体(11)内配置有多个由催化剂元件(22)和配置有多个该催化剂元件的横截面为梯形的收纳框体(21)构成的催化剂单元(12)，在容器主体的横截面上，设想半径小于容器主体的内周圆(Co)半径的假想圆(C)及在该内周圆与假想圆之间每隔相等角度配置的多个假想半径(r)，并设想内接于该假想圆的假想六边形(K)，由通过该假想六边形中心的假想直径(R)划分该假想六边形，设想两个第一假想梯形划分部(P1)，并且，在由容器主体的内周圆、假想圆和假想半径划分的假想带状扇形部(B)内，设想第二假想梯形划分部(P2)，并且将所述催化剂元件的收纳框体形成为，使其横截面与所述各假想梯形划分部的形状一致。

Description

用于柴油发动机的废气脱硝装置
技术领域
本发明涉及一种用于柴油发动机的废气脱硝装置。
背景技术
以往，在压力高的柴油发动机的排气***中设置脱硝装置的情况下，使用的不是由棱柱形容器而是由圆筒容器构成的脱硝装置。例如，如专利文献1所示的脱硝反应器中，为了容易***该圆筒容器内，使用如下所述的脱硝装置：将由陶瓷片卷成圆筒状的催化剂元件沿半径方向分割成扇型，并组合成圆柱状。
现有技术文献
专利文献
专利文献1：日本专利公开平成07-24259号公报
发明内容
(一)要解决的技术问题
根据上述现有的结构，将陶瓷片卷成圆筒状，使其大小与脱硝反应器的口径大致相同，来制造催化剂元件之后，在分割成多个的情况下，特别是在元件为大型的情况下，具有其切断装置等成为大型的问题。
此外，在应用于净化从船舶用柴油发动机排出的废气的脱硝装置的情况下，仅通过只将分割的催化剂元件装入，会在对发动机振动的耐久性上出现问题。
因此，本发明的目的是提供一种容易组装且对振动等具有耐久性的用于柴油发动机的废气脱硝装置。
(二)技术方案
为了解决上述技术问题，本发明的第一方面是一种脱硝装置，其具有圆筒形容器主体，所述圆筒形容器主体引导来自柴油发动机的废气，并且其内部配置有脱硝用催化剂元件；
在容器主体内配置多个由筒状收纳框体及配置在该收纳框体内的催化剂元件构成的催化剂单元；
在所述容器主体的横截面上，设想假想圆及多个假想半径，并设想假想六边形，所述假想圆的半径小于容器主体的内周圆的半径，所述多个假想半径在该内周圆与假想圆之间，且每隔相等角度配置，所述假想六边形内接于该假想圆；
由通过所述假想六边形中心的直径划分所述假想六边形，设想两个第一假想梯形划分部，并且在由所述容器主体的内周圆、假想圆和假想半径划分的假想带状扇形部内设想第二假想梯形划分部；
并且，将所述催化剂元件的收纳框体形成为，使其横截面与所述各假想梯形划分部的形状一致。
此外，本发明的第二方面是如下的脱硝装置，在所述脱硝装置的容器主体的横截面上，通过以同心圆设想多个假想圆，在假想带状扇形部内沿同心圆设想多列第二假想梯形划分部。
此外，本发明的第三方面是如下的脱硝装置，所述脱硝装置的收纳框体，收纳框体由筒状主体部、筒状前侧引导口部及筒状后侧引导口部构成，所述筒状主体部收纳催化剂元件，所述筒状前侧引导口部突出设置在该主体部的前方，具有小于所述主体部的口径，所述筒状后侧引导口部突出设置在所述主体部的后侧，能够嵌套在所述前侧引导口部上。
此外，本发明的第四方面是如下的脱硝装置，使配置在所述脱硝装置的收纳框体内部的催化剂元件为在主体部的前方形成有空间部的长度，并且，在与该空间部对应的收纳框体的主体部侧壁上形成用来使废气通过的第一切口孔；
并且，通过这些第一切口孔，废气能够在邻接的收纳框体之间移动。
进而，本发明的第五方面是如下的脱硝装置，在所述脱硝装置的收纳框体的主体部的与第一切口孔位置不同的侧壁上，形成用来减轻该收纳框体重量的第二切口孔，并且，在配置在主体部内的催化剂元件的与所述第二切口孔相对应的表面上，配置有用来保护催化剂元件的缓冲材料。
(三)有益效果
根据上述各发明，由于将圆筒形的容器主体内部划分成多个假想的划分部，并且在这些各划分部内，配置将催化剂元件***收纳框体内而成的催化剂单元，因此与像以往那样，将由陶瓷片卷成圆筒状而成的催化剂元件切断成多个，并将该切断后的催化剂元件装入容器内的现有技术不同，其组装变得容易，并且能够防止催化剂元件自身的偏离。因此，即使在将脱硝装置设置在来自发生振动的船舶用柴油发动机的废气的路径上的情况下，也能够得到耐久性，并且不需要如以往那样的催化剂单元的切断装置等。
附图说明
图1是表示本发明的实施例1的用于柴油发动机的废气脱硝装置的废气路径上的配置状态的图。
图2是表示该实施例1的脱硝装置的催化剂单元的配置模式的主视图。
图3是该脱硝装置的催化剂单元的立体图。
图4是该脱硝装置的催化剂单元的水平剖面图。
图5是该脱硝装置的催化剂单元的固定装置的夹具的侧视图。
图6是该固定装置的按压件的侧视图。
图7是表示本发明的实施例2的脱硝装置的催化剂单元的配置模式的主视图。
具体实施方式
(实施例1)
下面，根据图1～图6，说明本发明的实施例1的用于柴油发动机的废气脱硝装置。
如图1所示，所述用于柴油发动机的废气脱硝装置(以下称为脱硝装置)1配置在用来将来自船舶用柴油发动机2的废气引导至烟筒3的废气路径4的中途，且在涡轮增压器5的上游侧，其用来去除废气中所含有的氮氧化物。
如图2所示，所述脱硝装置1大致分为，由配置在废气路径4的中途的圆筒形的容器主体(为圆筒容器)11和配置在该容器主体11内的多个催化剂单元12构成，具体地，横截面形状为梯形(准确地说，为等腰梯形)的催化剂单元12以同心圆且呈放射状地配置在容器主体11内。另外，在该催化剂单元12上具备催化剂元件，如后所述，该催化剂单元12在圆周方向上连续配置，同时在前后方向上也连续配置。
即，如图2所示，在圆筒形的容器主体11的横截面上，设想假想圆C及多个假想半径r，并设想假想六边形K，所述假想圆C的半径小于作为容器主体11的圆形内面的内周圆Co，所述多个假想半径r每隔相等角度配置，所述假想六边形K内接于该假想圆C；在所述假想圆C内，根据通过其中心的假想直径R，设想两个第一假想梯形划分部P1，并且，在由所述容器主体11的内周圆Co、假想圆C和假想半径r划分的多个各假想带状扇形部(带状圆弧部)B内，分别设想第二假想梯形划分部P2；而且，形成所述催化剂单元12的收纳框体21，使其横截面与所述各假想梯形划分部P1、P2的形状一致。在图2中，表示划分成两个内侧的第一假想梯形划分部P1和12个外侧的第二假想梯形划分部P2。当然，催化剂单元12配置在这些各假想梯形划分部P1、P2中。
可是，如图3及图4所示，该横截面为梯形的催化剂单元12由收纳框体21和催化剂元件22构成，所述收纳框体21的横截面为梯形且具有规定长度，所述催化剂元件22为在该收纳框体21内部层状叠置的蜂窝形状。
该催化剂单元12构成为，如上所述，其在圆周方向上连续配置，同时在前后方向上也连续配置，而且各自的前后部能够相互结合，并且构成为来自前方的催化剂单元12(12A)的废气G能够流入后方的左右的催化剂单元12(12B)。
该催化剂单元12的收纳框体21由主体部(也可以称为躯体部)31、筒状前侧引导口部32和筒状后侧引导口部33构成，所述主体部31是横截面为具有规定口径(表示大小，例如使用上底及下底的长度、高度等尺寸)的梯形的筒状，所述筒状前侧引导口部32突出设置在该主体部31的前方，并具有比主体部31的规定口径小的梯形口径，所述筒状后侧引导口部33同样突出设置在主体部31的后方，并具有比主体部31的规定口径小的梯形口径，且能够***所述前侧引导口部32。
而且，在前后配置该收纳框体21时，其相对端部相互配合，使来自前方的收纳框体21的废气G引导至后方的收纳框体21。具体地，后侧引导口部33从外侧与前侧引导口部32配合。
即，前侧引导口部32由正面观察为梯形的凸缘部32a和四角锥形状的连接部32b构成，所述正面观察为梯形的凸缘部32a的口径略小于主体部31，所述四角锥形状的连接部32b连接该凸缘部32a与主体部31。此外，后侧引导口部33由正面观察为梯形的凸缘部33a、四角锥形状的连接部33b和折回引导部33c构成，所述正面观察为梯形的凸缘部33a的口径同样略小于主体部31，所述四角锥形状的连接部33b连接该凸缘部33a与主体部31，所述折回引导部33c从所述凸缘部33a的前端(也可以称为后端)突出设置，沿着后方的催化剂单元12(12B)的收纳框体21的前侧引导口部32。
进而，在收纳框体21的主体部31前侧的周围侧壁(左右侧壁及上下侧壁)上，形成有长圆形的第一切口孔31a，并且，在该第一切口孔31a的后方的主体部31相互对置的两侧壁上(当然，是与第一切口孔不同的位置)、例如上下侧壁上形成有多个、例如四个矩形的用于减轻重量的第二切口孔31b。
因此，如图4的水平剖面图所示，如果将收纳框体21配置成，在左右(为圆周方向)并列设置的同时，引导口部32、33之间在前后方向上配合，则来自前方的废气G的大部分通过催化剂元件22，直接向后方的催化剂元件22流动。此外，废气G的一部分通过第一切口孔31a，引导至在内周侧邻接配置的催化剂单元12的收纳框体21内。即，废气G在容器主体11内分散，与催化剂的反应效率提高。另外，废气G也在催化剂单元12的外周侧流动。
另外，在与第二切口孔31b相对应的位置上，即，在催化剂元件22的表面(外面)上，配置缓冲材料(例如，使用陶瓷纸等衬垫材料)23，所述缓冲材料23用来保护该催化剂元件22并夹持收纳框体21内的催化剂元件22。
此外，如图5及图6所示，在容器主体11的前后端面上，设置有用来阻止收纳框体21移动的固定装置41，以使所述各催化剂单元12在容器主体11内不会移动。
例如，该固定装置41由按压部件42和夹具43构成，所述按压部件42由配置在催化剂单元12的端边缘部及催化剂单元12之间的接触部(边界部)，用来压住各催化剂单元12的线材(或板材)构成，所述夹具43设置在容器主体11侧，用来固定所述按压部件42。此外，在该固定装置41上具备按压件44(如图6所示)，所述按压件44从侧面按压配置在容器主体11内的催化剂单元12的收纳框体21，阻止其在半径方向上的移动。例如，所述夹具43由支承托架51、紧固螺栓53和止动用螺母54、55构成，所述支承托架51立设在容器主体11的内面侧并形成有螺纹孔，所述紧固螺栓53螺旋***该支承托架51的螺纹孔，并在前端设置有能够按压按压部件42的按压板52。此外，关于按压件44，也与夹具43相同，由支承托架61、紧固螺栓63和止动螺母64、65构成，所述支承托架61立设在容器主体11的内面并形成有螺纹孔，所述紧固螺栓63螺旋***该支承托架61的螺纹孔，并在前端设置有能够按压收纳框体21侧面的按压板62。另外，可以根据催化剂单元12的配置模式来设定夹具43的按压部件42的形状。
根据上述实施例1的结构，由于将圆筒形的容器主体内部划分成多个假想的划分部，并且在这些各划分部内，配置将催化剂元件***收纳框体内而成的催化剂单元，因此与像以往那样，将由陶瓷片卷成圆筒状而成的催化剂元件切断成多个，并将该切断后的催化剂元件装入容器内的现有技术不同，其组装变得容易，并且能够防止催化剂元件自身的偏离。因此，即使在将脱硝装置设置在来自发生振动的船舶用柴油发动机的废气的路径上的情况下，也能够得到耐久性，并且不需要如以往那样的催化剂单元的切断装置等。
(实施例2)
接着，根据图7，说明本发明的实施例2的用于柴油发动机的废气脱硝装置。
在该实施例2中，如图7所示，将图2所示的实施例1的第二假想梯形划分部P2划分成内周侧和外周侧两部分。
即，在圆筒形的容器主体11的横截面上，分别设想各12个靠近内周的第二假想梯形划分部P2a和靠近外周的第二假想梯形划分部P2b，设想共计24个第二假想梯形划分部P2a、P2b和在中心部上的两个第一假想梯形划分部P1。当然，催化剂单元12配置在这些各假想梯形划分部P1、P2a、P2b中。
该实施例2的结构也具有与上述实施例1相同的效果。

Claims (5)

1.一种用于柴油发动机的废气脱硝装置，其特征在于，具有圆筒形容器主体，所述圆筒形容器主体引导来自柴油发动机的废气，并且其内部配置有脱硝用催化剂元件；
在容器主体内配置多个由筒状收纳框体及配置在所述收纳框体内的催化剂元件构成的催化剂单元；
在所述容器主体的横截面上，设想假想圆及多个假想半径，并设想假想六边形，所述假想圆的半径小于容器主体的内周圆的半径，所述多个假想半径在所述内周圆与假想圆之间，且每隔相等角度配置，所述假想六边形内接于所述假想圆；
由通过所述假想六边形中心的直径划分所述假想六边形，设想两个第一假想梯形划分部，并且在通过所述容器主体的内周圆、假想圆和假想半径划分的假想带状扇形部内设想第二假想梯形划分部；
并且，将所述催化剂元件的收纳框体形成为，使其横截面与所述各假想梯形划分部的形状一致。
2.根据权利要求1所述的用于柴油发动机的废气脱硝装置，其特征在于，通过以同心圆设想多个假想圆，在假想带状扇形部内沿同心圆设想多列第二假想梯形划分部。
3.根据权利要求1所述的用于柴油发动机的废气脱硝装置，其特征在于，收纳框体由筒状主体部、筒状前侧引导口部和筒状后侧引导口部构成，所述筒状主体部收纳催化剂元件，所述筒状前侧引导口部突出设置在该主体部的前方，具有小于所述主体部的口径，所述筒状后侧引导口部突出设置在所述主体部的后侧，能够嵌套在所述前侧引导口部上。
4.根据权利要求1所述的用于柴油发动机的废气脱硝装置，其特征在于，使配置在收纳框体内部的催化剂元件为在主体部的前方形成有空间部的长度，并且，在与该空间部对应的收纳框体的主体部侧壁上形成用来使废气通过的第一切口孔；
并且，通过这些第一切口孔，废气能够在邻接的收纳框体之间移动。
5.根据权利要求4所述的用于柴油发动机的废气脱硝装置，其特征在于，在收纳框体的主体部的与第一切口孔位置不同的侧壁上，形成用来减轻该收纳框体重量的第二切口孔，并且，在配置在主体部内的催化剂元件的与所述第二切口孔相对应的表面上，配置有用来保护催化剂元件的缓冲材料。
CN201380005455.6A 2012-02-13 2013-02-12 用于柴油发动机的废气脱硝装置 Active CN104053490B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012027899A JP5511865B2 (ja) 2012-02-13 2012-02-13 ディーゼルエンジン用排ガス脱硝装置
JP2012-027899 2012-02-13
PCT/JP2013/053187 WO2013122027A1 (ja) 2012-02-13 2013-02-12 ディーゼルエンジン用排ガス脱硝装置

Publications (2)

Publication Number Publication Date
CN104053490A true CN104053490A (zh) 2014-09-17
CN104053490B CN104053490B (zh) 2016-08-24

Family

ID=48984137

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201380006992.2A Active CN104093476B (zh) 2012-02-13 2013-02-12 用于柴油发动机的废气脱硝装置
CN201380005455.6A Active CN104053490B (zh) 2012-02-13 2013-02-12 用于柴油发动机的废气脱硝装置

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201380006992.2A Active CN104093476B (zh) 2012-02-13 2013-02-12 用于柴油发动机的废气脱硝装置

Country Status (6)

Country Link
EP (1) EP2815802B1 (zh)
JP (1) JP5511865B2 (zh)
KR (2) KR101547191B1 (zh)
CN (2) CN104093476B (zh)
DK (1) DK2815802T3 (zh)
WO (2) WO2013122026A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014010858A1 (de) 2014-07-25 2016-01-28 Man Diesel & Turbo Se Katalysatoreinheit und Abgaskatalysator
JP6703899B2 (ja) * 2016-05-31 2020-06-03 日立造船株式会社 排ガス処理装置
KR102431898B1 (ko) * 2017-01-04 2022-08-16 우미코레 아게 운트 코 카게 연도 가스 정화를 위한 카세트 통합형 촉매
CN107956559B (zh) * 2017-12-04 2019-12-20 合肥神舟催化净化器股份有限公司 一种基于汽车尾气净化的减震装置
JP2020044461A (ja) * 2018-09-14 2020-03-26 三菱日立パワーシステムズ株式会社 脱硝装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001293379A (ja) * 2000-04-13 2001-10-23 Fukuju Kogyo Kk 排ガス浄化用金属担体
US20070212517A1 (en) * 2005-02-17 2007-09-13 Kazushige Ohno Honeycomb structured body
CN201244435Y (zh) * 2008-08-25 2009-05-27 江苏中科节能环保技术有限公司 一种卧式烟气脱硝装置
CN201613137U (zh) * 2010-01-15 2010-10-27 涿州中天环保催化剂有限公司 蜂窝式烟气脱硝催化剂结构

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3305047B2 (ja) 1993-07-13 2002-07-22 三菱重工業株式会社 脱硝反応器
JP3889194B2 (ja) * 2000-01-13 2007-03-07 日本碍子株式会社 ハニカム構造体
JP2009255046A (ja) * 2008-03-24 2009-11-05 Ibiden Co Ltd ハニカム構造体
CN201613136U (zh) * 2010-01-15 2010-10-27 涿州中天环保催化剂有限公司 抗堵灰型蜂窝式脱硝催化剂结构
JP5498828B2 (ja) * 2010-03-18 2014-05-21 日本碍子株式会社 ハニカム構造体
JP5848884B2 (ja) * 2010-04-22 2016-01-27 イビデン株式会社 ハニカム構造体
CN201815314U (zh) * 2010-10-27 2011-05-04 山东电力研究院 正六边形内孔道结构的scr脱硝技术用蜂窝状催化剂
CN202036999U (zh) * 2011-03-10 2011-11-16 青岛华拓电力环保有限公司 烟气脱硝用蜂窝式催化剂

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001293379A (ja) * 2000-04-13 2001-10-23 Fukuju Kogyo Kk 排ガス浄化用金属担体
US20070212517A1 (en) * 2005-02-17 2007-09-13 Kazushige Ohno Honeycomb structured body
CN201244435Y (zh) * 2008-08-25 2009-05-27 江苏中科节能环保技术有限公司 一种卧式烟气脱硝装置
CN201613137U (zh) * 2010-01-15 2010-10-27 涿州中天环保催化剂有限公司 蜂窝式烟气脱硝催化剂结构

Also Published As

Publication number Publication date
DK2815802T3 (en) 2017-04-10
CN104093476B (zh) 2016-01-20
EP2815802B1 (en) 2016-12-28
EP2815802A4 (en) 2015-12-02
KR101547191B1 (ko) 2015-08-25
WO2013122027A1 (ja) 2013-08-22
KR20140110936A (ko) 2014-09-17
KR101547198B1 (ko) 2015-08-25
JP2013163160A (ja) 2013-08-22
KR20140110937A (ko) 2014-09-17
JP5511865B2 (ja) 2014-06-04
CN104053490B (zh) 2016-08-24
CN104093476A (zh) 2014-10-08
EP2815802A1 (en) 2014-12-24
WO2013122026A1 (ja) 2013-08-22

Similar Documents

Publication Publication Date Title
CN104053490A (zh) 用于柴油发动机的废气脱硝装置
EP3387232B1 (en) Improved frame elements for containing monoliths
JP2020189290A (ja) 触媒モジュール及びその適用
CN106194348B (zh) 内燃机的废气净化装置
JP2012517338A (ja) 反応器の構造充填物
CA2867492A1 (en) Apparatus for retaining solid material in a radial flow reactor and method of making
KR20140064358A (ko) 대용량 촉매 담체를 형성하기 위한 권취형 금속 담체 및 이의 제조방법
JP2014180606A (ja) ハニカム構造体
JP2013509523A5 (zh)
US10400655B2 (en) Catalytic converter unit and exhaust gas catalytic converter
EP3111070B1 (en) Catalytic converter apparatus, element box for a catalytic converter apparatus and a kit of parts
KR20190022776A (ko) 평면 촉매 충전물
JP2017198134A (ja) ケーシング
JP6838824B2 (ja) 排気浄化装置
US20150082758A1 (en) Pulse filter design
JP6235257B2 (ja) 排気浄化装置及びその製造方法
EP4069955A1 (en) Element frame assemblies containing monoliths
JP2020055333A (ja) 船舶用の脱硫装置
KR20150048306A (ko) 메탈 폼 필터, 이를 제조하는 방법 및 이를 포함하는 배기 가스 여과 장치
US20150064079A1 (en) Catalyst substrate module for exhaust aftertreatment system
WO2018075923A1 (en) Catalyst substrate and filter structure including plates and method of forming same
JP2007187123A (ja) 内燃機関の排気浄化装置
JP2014218956A (ja) ディーゼルエンジンの排ガス処理装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant