WO2021129707A1 - 一种燃料电池排气系统消声器组合装置 - Google Patents

一种燃料电池排气系统消声器组合装置 Download PDF

Info

Publication number
WO2021129707A1
WO2021129707A1 PCT/CN2020/138845 CN2020138845W WO2021129707A1 WO 2021129707 A1 WO2021129707 A1 WO 2021129707A1 CN 2020138845 W CN2020138845 W CN 2020138845W WO 2021129707 A1 WO2021129707 A1 WO 2021129707A1
Authority
WO
WIPO (PCT)
Prior art keywords
muffler
inner cannula
housing
fuel cell
exhaust system
Prior art date
Application number
PCT/CN2020/138845
Other languages
English (en)
French (fr)
Inventor
吴赛赛
王开专
Original Assignee
曼胡默尔滤清器（上海）有限公司
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 曼胡默尔滤清器（上海）有限公司 filed Critical 曼胡默尔滤清器（上海）有限公司
Publication of WO2021129707A1 publication Critical patent/WO2021129707A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the invention relates to the technical field of mufflers for automobile exhaust systems, in particular to a fuel cell exhaust system muffler assembly device.
  • the fuel cell noise source mainly comes from the air compressor.
  • the air compressor When the vehicle is running, the noise generated by the air compressor is transmitted to the exhaust system through the pipeline.
  • the exhaust system needs to undertake the function of noise reduction.
  • the current mainstream air compressor Noise characteristics will produce serious high-frequency airflow noise and low-frequency order noise.
  • porous sound-absorbing materials are conventionally used, but the materials are not waterproof, and the reactive power generation of fuel cell stacks will generate a lot of water.
  • the fuel cell exhaust system also needs to undertake the drainage function, so porous sound-absorbing materials with high sound absorption coefficient are required to have waterproof properties.
  • the existing muffler structure cannot meet the above requirements, cannot solve the problems of high-frequency airflow and low-frequency order noise, and at the same time cannot meet the drainage requirements of the fuel cell exhaust system.
  • the purpose of the present invention is to solve the above problems and provide a fuel cell exhaust system muffler assembly device, which can solve the problems of high-frequency airflow and low-frequency order noise of the fuel cell exhaust system, and at the same time meet the requirements of the fuel cell exhaust system drainage problem.
  • a fuel cell exhaust system muffler assembly device comprising a first muffler and a second muffler connected by a pipeline
  • the first muffler includes a first muffler housing and a second muffler set inside the first muffler housing
  • a muffler inner assembly, the first muffler inner assembly and the first muffler shell form a plurality of muffler chambers for eliminating high-frequency noise
  • the second muffler includes a second muffler shell and the first muffler shell
  • the second muffler inner assembly inside the second muffler shell, the second muffler inner assembly and the second muffler shell form several muffler chambers for eliminating low-frequency noise.
  • the internal assembly of the first muffler includes a first inner cannula and a plurality of first partitions, a layer of waterproof porous sound-absorbing material is provided on the surface of the first inner cannula, and a plurality of The muffler hole, the first inner cannula passes through the entire first muffler housing, the first partition is sleeved outside the first inner cannula, and the first muffler housing is divided into Several silencing chambers.
  • the muffler hole opened on the first inner cannula is a square hole or a round hole, and the opening rate of the first inner intubation tube section of each muffler chamber is 60-70%, which ensures good high-frequency noise elimination. Sound effect.
  • waterproof porous sound-absorbing material is SM-300WL from 3M Company.
  • the first muffler housing includes a first muffler lower housing and a first muffler upper cover, and the first muffler upper cover is closed on the upper part of the first muffler lower housing to form the closed first muffler A muffler housing;
  • the first inner cannula passes through the middle of the lower housing of the first muffler, the inlet of the first inner cannula is connected with the exhaust pipe of the exhaust system, and the first inner The outlet of the cannula is connected with the pipeline;
  • the first partition is provided with 2-4 groups, and is inserted in parallel in the lower shell of the first muffler at intervals.
  • the second muffler inner assembly includes a second inner cannula, a third inner cannula assembly, and a drain and exhaust pipe that are sequentially arranged in the second muffler housing at intervals;
  • the inner cannula assembly is composed of one or more sets of third inner cannulae arranged side by side.
  • a number of muffler holes are opened on the second inner cannula and the third inner cannula.
  • the second inner cannula and the third inner cannula The components are arranged at intervals to form a labyrinth structure, which has a good acoustic effect for low frequencies.
  • a number of second partitions are provided outside the second inner cannula, and a number of third partitions are provided outside the third inner cannula.
  • the second and third partitions are inserted in parallel at intervals on the first partition. Inside the second muffler shell, and divide the second muffler shell to form a plurality of muffler chambers.
  • the second inner cannula is arranged in the middle of the front section of the second muffler housing, the inlet of the second inner cannula is connected to the pipeline, and the outlet of the second inner cannula is located at Inside the second muffler housing.
  • the inlet of the drainage and exhaust pipe is arranged inclined downward and close to the bottom of the second muffler housing, and the outlet of the drainage and exhaust pipe is arranged on the outside of the second muffler housing and is connected to the exhaust pipe.
  • the bottom of the third partition plate is provided with openings for passing water.
  • the second muffler housing includes a second muffler upper cover, a second muffler middle housing, and a second muffler bottom cover, the second muffler upper cover, the second muffler middle housing, and the second muffler bottom cover Buckle together to form the closed second muffler shell.
  • the surface of the bottom cover of the second muffler is provided with a plurality of drainage guide ribs along the water discharge direction to facilitate the discharge of water flow.
  • the specific working principle of this device is that the air purified by the air filter enters the clean side from the dirty side, and the air on the clean side enters the air compressor.
  • the vehicle ECU controls the opening of the valve body and the electric stack
  • the intake system reacts with the gas from the hydrogen tank to produce a large amount of water, which enters the exhaust side.
  • the noise generated by the air compressor enters the exhaust end through the exhaust pipe and uses the device
  • the internal structure of a muffler and a second muffler can reduce high-frequency and low-frequency noise. At the same time, this structure can discharge a large amount of water while reducing noise.
  • the combination of the first muffler's high-opening rate large-hole structure and the waterproof sound-absorbing material has a good silencing effect on high-frequency noise, and has a wide silencing frequency band and silencing ability.
  • the multi-segment labyrinth design of the second elimination chamber and the length design of the near-outlet chamber effectively solve the problem of low-frequency acoustics and improve the effect of low-frequency noise reduction.
  • the internal structure of the second elimination chamber has a water separation function, and the second partition can function as a water blocking baffle.
  • the exhaust air flow with water is blocked by the second partition, and it is easy to form liquid water, which helps Realize water vapor separation, effectively further reduce noise and enhance exhaust.
  • Figure 1 is a schematic diagram of the overall explosion of the device embodiment of the present invention.
  • FIG. 2 is a schematic top view of the lower shell of the first muffler of the device embodiment of the present invention
  • Figure 3 is a cross-sectional view taken along the line A-A of Figure 2;
  • Figure 4 is an exploded schematic diagram of the second muffler of the device embodiment of the present invention.
  • Figure 5 shows the sound absorption coefficient curve of SM-300WL
  • Figure 6 shows the noise transmission loss of the device of the present invention
  • a fuel cell exhaust system muffler assembly device includes a first muffler and a second muffler connected by a pipeline 4.
  • the first muffler includes a first muffler housing and a muffler set inside the first muffler housing
  • the first muffler inner assembly 2, the first muffler inner assembly 2 and the first muffler shell form several muffler chambers for eliminating high-frequency noise
  • the second muffler includes a second muffler shell and is arranged inside the second muffler shell
  • the second muffler inner assembly 6, the second muffler inner assembly 6 and the second muffler shell form a number of muffler chambers for eliminating low-frequency noise.
  • the first muffler housing includes a first muffler lower housing 1 and a first muffler upper cover 3.
  • the first muffler upper cover 3 covers the upper part of the first muffler lower housing 1 to form a closed first A muffler shell, the first muffler shell of this embodiment is specifically a flat long rectangular shell.
  • the first muffler inner assembly 2 includes a first inner cannula 21 and a number of first partitions 22.
  • the surface of the first inner cannula 21 is provided with a waterproof porous sound-absorbing material 24 and a waterproof porous sound-absorbing material 24.
  • the SM-300WL from 3M can be used.
  • Figure 5 shows the sound absorption coefficient curve.
  • a number of muffler holes 23 are provided on the first inner cannula 21, the first inner cannula 21 passes through the entire first muffler housing, the first partition 22 is sleeved outside the first inner cannula 21, and the first muffler housing The body is divided to form several silencing chambers.
  • the first inner cannula 21 is a long round tube.
  • the first inner cannula 21 passes through the middle of the lower casing 1 of the first muffler, and both ends leak out.
  • the inlet of the first inner cannula 21 is connected to the exhaust of the exhaust system.
  • the pipes are connected, and the outlet of the first inner cannula 21 is connected with the pipeline 4; the first partition 22 is inserted into the lower shell 1 of the first muffler in parallel at intervals.
  • first partitions 22 are provided to form four independent silencing chambers respectively.
  • the silencing holes 23 provided on the first inner cannula 21 are square holes or round holes, and each silencing chamber
  • the opening rate of the first inner cannula 21 pipe section is 60%, which ensures a good high-frequency noise reduction effect.
  • the second muffler housing includes a second muffler upper cover 7, a second muffler middle housing 5, and a second muffler bottom cover 8, a second muffler upper cover 7, a second muffler middle housing 5, and a second muffler
  • the bottom cover 8 is buckled together to form a closed second muffler shell, which is also in the shape of a flat rectangular shell.
  • the second muffler inner assembly 6 includes a second inner cannula 61, a third inner cannula assembly, and a drain and exhaust pipe 65 arranged in the second muffler housing at intervals in sequence;
  • the third inner cannula assembly consists of two
  • the second inner cannula 61 and the third inner cannula 63 are provided with a number of muffler holes 23;
  • the second inner cannula 61 is provided with two second partitions 62, the third inner cannula 63
  • Four third partitions 64 are arranged outside the inner insertion tube 63, and the second partition 62 and the third partition 64 are inserted into the second muffler housing in parallel at intervals, and the second muffler housing is divided to form a plurality of muffler cavities room.
  • the second inner cannula 61 and the third inner cannula 63 in the second muffler are spaced apart to form a staggered labyrinth structure, which has a good acoustic effect for low frequencies and facilitates the discharge of water vapor.
  • the length of chamber a is not less than 40% of the entire chamber length
  • the length of chamber b is not less than 20% of the entire chamber length.
  • Figure 6 shows the transmission loss of the exhaust system muffler. In the frequency range of 2000-5000Hz, the macroporous structure conforms to the transmission loss of the waterproof material solution, which is 10-15dB higher than the existing one.
  • the second inner cannula 61 is arranged in the middle of the front section of the second muffler housing, the inlet of the second inner cannula 61 is connected with the pipeline 4, and the outlet of the second inner cannula 61 is located in the second muffler housing.
  • the third inner insert pipe 63 is arranged in the middle, and the third partition 64 can act as a water barrier. The exhaust gas containing moisture encounters the third partition 64 and hits it. Under the action of gravity, most of the water contained in the airflow It will fall to the bottom of the exhaust mechanism and be temporarily stored.
  • the bottom of the third partition 64 is provided with openings for water flow through, and the surface of the second muffler bottom cover 8 is provided with a plurality of drainage guide ribs 81 along the water flow discharge direction.
  • the inlet of the drainage exhaust pipe 65 is inclined downward and is close to the bottom of the second muffler housing, and the outlet of the drainage exhaust pipe 65 is arranged outside the second muffler housing and is connected to the exhaust tail pipe 9.
  • the exhaust tail pipe and the bottom plate of the exhaust mechanism are at a certain angle. When the exhaust airflow is small, it is not enough to drive the water to discharge it, so as to prevent the water from being directly discharged on the road when the exhaust airflow is greater than a certain value.
  • the water is driven by the exhaust airflow, flows along the direction of the drainage diversion rib 81, and is discharged through the exhaust tail pipe 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Fuel Cell (AREA)

Abstract

一种燃料电池排气系统消声器组合装置，包括通过管路（4）相连接的第一消声器和第二消声器，第一消声器包括第一消声器壳体和设于第一消声器壳体内部的第一消声器内组件（2），第一消声器内组件（2）与第一消声器壳体形成若干消音腔室，用于消除高频噪音；第二消声器包括第二消声器壳体和设于第二消声器壳体内部的第二消声器内组件（6），第二消声器内组件（6）与第二消声器壳体形成若干消音腔室，用于消除低频噪音。本装置能够解决燃料电池排气系统的高频气流和低频阶次噪音问题，且同时满足燃料电池排气系统排水需求。

Description

一种燃料电池排气系统消声器组合装置 技术领域
本发明涉及汽车排气系统消声器技术领域，具体涉及一种燃料电池排气系统消声器组合装置。
背景技术
随着汽车行业发展和国家政策不断的推动，燃料电池汽车已成为汽车行业的主要发展方向。燃料电池噪声源主要来自于空压机，在整车运行状态下，空压机运行产生的噪声通过管路传递到排气系统，排气系统需要承担降噪的功能，目前主流的空压机噪音特性均会产生严重的高频气流噪声和低频阶次噪音，对于高频问题的气流噪音，常规使用多孔吸声材料，但该材料不防水，而燃料电池电堆的反应发电会产生大量的水。与此同时，燃料电池排气系统还需要承担排水功能，因此要求吸声系数较高的多孔吸声材料具备防水特性。
现有消声器结构难以满足上述需求，无法解决高频气流和低频阶次噪音问题，且同时不能满足燃料电池排气系统的排水需求。
发明内容
本发明的目的就是为了解决上述问题，而提供一种燃料电池排气系统消声器组合装置，能够解决燃料电池排气系统的高频气流和低频阶次噪音问题，且同时满足燃料电池排气系统排水问题。
本发明的目的通过以下技术方案实现：
一种燃料电池排气系统消声器组合装置，包括通过管路相连接的第一消声器和第二消声器，所述第一消声器包括第一消声器壳体和设于所述第一消声器壳体内部的第一消声器内组件，所述第一消声器内组件与所述第一消声器壳体形成若干消音腔室，用于消除高频噪音；所述第二消声器包括第二消声器壳体和设于所述第二消声器壳体内部的第二消声器内组件，所述第二消声器内组件与所述第二消声器壳 体形成若干消音腔室，用于消除低频噪音。
进一步地，所述第一消声器内组件包括第一内插管和若干第一隔板，所述第一内插管表面设置一层防水多孔吸声材料，所述第一内插管上开设若干消音孔，所述第一内插管穿过整个所述第一消声器壳体，所述第一隔板套设在所述第一内插管外，并将所述第一消声器壳体分割形成若干消音腔室。
进一步地，所述第一内插管上开设的消音孔为方孔或圆孔，每个消音腔室的第一内插管管段的开孔率为60-70％，保证好的高频消声效果。
进一步地，所述防水多孔吸声材料为3M公司的SM-300WL。
进一步地，所述第一消声器壳体包括第一消声器下壳体和第一消声器上盖，所述第一消声器上盖盖合于所述第一消声器下壳体上部，形成封闭的所述第一消声器壳体；所述第一内插管穿过所述第一消声器下壳体的中间，所述第一内插管的入口与排气系统的排气管相连接，所述第一内插管的出口与所述管路相连接；所述第一隔板设置2-4组，按间隔平行插设在所述第一消声器下壳体内。
进一步地，沿排气方向，所述第二消声器内组件包括依次间隔设置在所述第二消声器壳体内的第二内插管、第三内插管组件和排水排气管；所述第三内插管组件由一组或多组并列的第三内插管组成，所述第二内插管及第三内插管上均开设若干消音孔，第二内插管与第三内插管组件间隔设置，形成迷路结构，对于低频有较好的声学效果。
所述第二内插管外设置若干第二隔板，所述第三内插管外设置若干第三隔板，所述第二隔板与第三隔板按间隔平行插设在所述第二消声器壳体内，并将所述第二消声器壳体分割形成若干消音腔室。
进一步地，所述第二内插管设置在所述第二消声器壳体的前段中间，所述第二内插管的进口与所述管路相连接，所述第二内插管的出口位于所述第二消声器壳体内。
进一步地，所述排水排气管的入口向下倾斜设置并靠近所述第二 消声器壳体的底部，所述排水排气管的出口设置在所述第二消声器壳体的外部，并连接排气尾管，所述第三隔板的底部设有使水流通过的开孔。
进一步地，所述第二消声器壳体包括第二消声器上盖、第二消声器中间壳体以及第二消声器底盖，所述第二消声器上盖、第二消声器中间壳体以及第二消声器底盖相扣合，形成封闭的所述第二消声器壳体。
进一步地，所述第二消声器底盖的表面沿水流排出方向设有若干排水导流筋，有助于水流的排出。
本装置的具体工作原理为，经过空滤净化的空气从脏侧进入干净侧，干净侧的空气进入到空压机，随着空压机的运行，车辆ECU控制阀体的开度，电堆将进气系统与氢罐输送进来的气体进行反应，产生大量的水，进入到排气侧，同时，空压机端产生的噪音，通过排气管路进入到排气端并利用本装置第一消声器与第二消声器的内部结构，对高频与低频噪音进行降噪，同时本结构在降噪的同时排出大量的水。
与现有技术相比，本发明的有益效果为：
1、第一消声器高开孔率的大孔结构的设计与防水吸声材料的组合，对高频噪声起很好的消声作用，具有较宽的消声频段和消声能力。
2、第二消腔室多管段迷路设计及近出气腔室的长度设计，有效解决低频声学问题，提高低频降噪作用。
3、第二消腔室的内部结构具有水分离功能，第二隔板可以具有隔水挡板的作用，带有水的排气气流遇第二隔板阻隔，容易形成液态水，有助于实现水汽分离，有效进一步降低噪音，增强排气。
附图说明
图1为本发明装置实施例整体爆炸示意图；
图2为本发明装置实施例第一消声器下壳体的俯视示意图；
图3为图2的A-A向剖视图；
图4为本发明装置实施例第二消声器的爆炸示意图；
图5为SM-300WL吸声系数曲线；
图6为本发明装置噪音传递损失；
图中：1-第一消声器下壳体，2-第一消声器内组件，3-第一消声器上盖，4-管路，5-第二消声器中间壳体，6-第二消声器内组件，7-第二消声器上盖，8-第二消声器底盖，9-排气尾管；21-第一内插管、22-第一隔板、23-消音孔、24-防水多孔吸声材料、61-第二内插管、62-第二隔板、63-第三内插管、64-第三隔板、65-排水排气管、81-排水导流筋。
具体实施方式
下面结合附图和具体实施例对本发明进行详细说明。
实施例
如图1，一种燃料电池排气系统消声器组合装置，包括通过管路4相连接的第一消声器和第二消声器，第一消声器包括第一消声器壳体和设于第一消声器壳体内部的第一消声器内组件2，第一消声器内组件2与第一消声器壳体形成若干消音腔室，用于消除高频噪音；第二消声器包括第二消声器壳体和设于第二消声器壳体内部的第二消声器内组件6，第二消声器内组件6与第二消声器壳体形成若干消音腔室，用于消除低频噪音。
具体地，如图1，第一消声器壳体包括第一消声器下壳体1和第一消声器上盖3，第一消声器上盖3盖合于第一消声器下壳体1上部，形成封闭的第一消声器壳体，本实施例的第一消声器壳体具体为扁长的长方形壳体。如图2、3，第一消声器内组件2包括第一内插管21和若干第一隔板22，第一内插管21表面设置一层防水多孔吸声材料24，防水多孔吸声材料24可以采用3M公司的SM-300WL，图5为吸声系数曲线。第一内插管21上开设若干消音孔23，第一内插管21穿过整个第一消声器壳体，第一隔板22套设在第一内插管21外， 并将第一消声器壳体分割形成若干消音腔室。
本实施例，第一内插管21为长圆管，第一内插管21穿过第一消声器下壳体1的中间，两头漏出，第一内插管21的入口与排气系统的排气管相连接，第一内插管21的出口与管路4相连接；第一隔板22按间隔平行插设在第一消声器下壳体1内。
本实施例中，设置了三个第一隔板22，分别形成了四个独立的消音腔室，第一内插管21上开设的消音孔23为方孔或圆孔，每个消音腔室的第一内插管21管段的开孔率为60％，保证好的高频消声效果。
如图4，第二消声器壳体包括第二消声器上盖7、第二消声器中间壳体5以及第二消声器底盖8，第二消声器上盖7、第二消声器中间壳体5以及第二消声器底盖8相扣合，形成封闭的第二消声器壳体，也是扁长的长方壳形状。沿排气方向，第二消声器内组件6包括依次间隔设置在第二消声器壳体内的第二内插管61、第三内插管组件和排水排气管65；第三内插管组件由两组并列的第三内插管63组成，第二内插管61及第三内插管63上均开设若干消音孔23；第二内插管61外设置两个第二隔板62，第三内插管63外设置四个第三隔板64，第二隔板62与第三隔板64按间隔平行插设在第二消声器壳体内，并将第二消声器壳体分割形成多个消音腔室。第二消音器中的第二内插管61与第三内插管63之间间隔设置，形成错位的迷路结构，对于低频有较好的声学效果且有利于水汽的排出。本实施例中，腔室a的长度不低于整个腔室长度的40％，腔室b的长度不低于整个腔室长度的20％，图6为排气系统消声器传递损失，可知，在2000-5000Hz频段范围内，大孔结构符合防水材料的方案传递损失，比现有提高10-15dB。
第二内插管61设置在第二消声器壳体的前段中间，第二内插管61的进口与管路4相连接，第二内插管61的出口位于第二消声器壳体内。第三内插管63设置在中间，第三隔板64可以充当隔水板，含 有水分的排气遇到第三隔板64，撞击在上面，在重力作用下，气流中含有的大部分水会落到排气机构的底部，暂时储存起来，第三隔板64的底部设有使水流通过的开孔，第二消声器底盖8的表面沿水流排出方向设有若干排水导流筋81。排水排气管65的入口向下倾斜设置并靠近第二消声器壳体的底部，排水排气管65的出口设置在第二消声器壳体的外部，并连接排气尾管9。排气尾管与排气机构底板呈一定角度，当排气气流较小时，不足以带动水将其排出，避免怠速时水直接排在道路上；当排气气流大于某一值时，储存的水经排气气流带动，沿着排水导流筋81导流方向流动，通过排气尾管9排出。
上述的对实施例的描述是为便于该技术领域的普通技术人员能理解和使用发明。熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改，并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。因此，本发明不限于上述实施例，本领域技术人员根据本发明的揭示，不脱离本发明范畴所做出的改进和修改都应该在本发明的保护范围之内。

Claims (10)

  1. 一种燃料电池排气系统消声器组合装置，其特征在于，包括通过管路(4)相连接的第一消声器和第二消声器，
    所述第一消声器包括第一消声器壳体和设于所述第一消声器壳体内部的第一消声器内组件(2)，所述第一消声器内组件(2)与所述第一消声器壳体形成若干消音腔室，用于消除高频噪音；
    所述第二消声器包括第二消声器壳体和设于所述第二消声器壳体内部的第二消声器内组件(6)，所述第二消声器内组件(6)与所述第二消声器壳体形成若干消音腔室，用于消除低频噪音。
  2. 根据权利要求1所述的一种燃料电池排气系统消声器组合装置，其特征在于，所述第一消声器内组件(2)包括第一内插管(21)和若干第一隔板(22)，所述第一内插管(21)表面设置一层防水多孔吸声材料(24)，所述第一内插管(21)上开设若干消音孔(23)，
    所述第一内插管(21)穿过整个所述第一消声器壳体，所述第一隔板(22)套设在所述第一内插管(21)外，并将所述第一消声器壳体分割形成若干消音腔室。
  3. 根据权利要求2所述的一种燃料电池排气系统消声器组合装置，其特征在于，所述第一内插管(21)上开设的消音孔(23)为方孔或圆孔，每个消音腔室的第一内插管(21)管段的开孔率为60-70％。
  4. 根据权利要求2所述的一种燃料电池排气系统消声器组合装置，其特征在于，所述防水多孔吸声材料(24)为3M公司的SM-300WL。
  5. 根据权利要求2-4任一项所述的一种燃料电池排气系统消声器组合装置，其特征在于，所述第一消声器壳体包括第一消声器下壳体(1)和第一消声器上盖(3)，所述第一消声器上盖(3)盖合于所述第一消声器下壳体(1)上部，形成封闭的所述第一消声器壳体；
    所述第一内插管(21)穿过所述第一消声器下壳体(1)的中间， 所述第一内插管(21)的入口与排气系统的排气管相连接，所述第一内插管(21)的出口与所述管路(4)相连接；
    所述第一隔板(22)按间隔平行插设在所述第一消声器下壳体(1)内。
  6. 根据权利要求1所述的一种燃料电池排气系统消声器组合装置，其特征在于，沿排气方向，所述第二消声器内组件(6)包括依次间隔设置在所述第二消声器壳体内的第二内插管(61)、第三内插管组件和排水排气管(65)；
    所述第三内插管组件由一组或多组并列的第三内插管(63)组成，所述第二内插管(61)及第三内插管(63)上均开设若干消音孔(23)；
    所述第二内插管(61)外设置若干第二隔板(62)，所述第三内插管(63)外设置若干第三隔板(64)，所述第二隔板(62)与第三隔板(64)按间隔平行插设在所述第二消声器壳体内，并将所述第二消声器壳体分割形成若干消音腔室。
  7. 根据权利要求6所述的一种燃料电池排气系统消声器组合装置，其特征在于，所述第二内插管(61)设置在所述第二消声器壳体的前段中间，所述第二内插管(61)的进口与所述管路(4)相连接，所述第二内插管(61)的出口位于所述第二消声器壳体内。
  8. 根据权利要求6所述的一种燃料电池排气系统消声器组合装置，其特征在于，所述排水排气管(65)的入口向下倾斜设置并靠近所述第二消声器壳体的底部，所述排水排气管(65)的出口设置在所述第二消声器壳体的外部，并连接排气尾管(9)，所述第三隔板(64)的底部设有使水流通过的开孔。
  9. 根据权利要求6-8任一项所述的一种燃料电池排气系统消声器组合装置，其特征在于，所述第二消声器壳体包括第二消声器上盖(7)、第二消声器中间壳体(5)以及第二消声器底盖(8)，所述第二消声器上盖(7)、第二消声器中间壳体(5)以及第二消声器底盖(8)相扣合，形成封闭的所述第二消声器壳体。
  10. 根据权利要求9所述的一种燃料电池排气系统消声器组合装置，其特征在于，所述第二消声器底盖(8)的表面沿水流排出方向设有若干排水导流筋(81)。
PCT/CN2020/138845 2019-12-25 2020-12-24 一种燃料电池排气系统消声器组合装置 WO2021129707A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201922366445.2U CN211648391U (zh) 2019-12-25 2019-12-25 一种燃料电池排气系统消声器组合装置
CN201922366445.2 2019-12-25

Publications (1)

Publication Number Publication Date
WO2021129707A1 true WO2021129707A1 (zh) 2021-07-01

Family

ID=72699034

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/138845 WO2021129707A1 (zh) 2019-12-25 2020-12-24 一种燃料电池排气系统消声器组合装置

Country Status (2)

Country Link
CN (1) CN211648391U (zh)
WO (1) WO2021129707A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11946398B1 (en) 2022-10-12 2024-04-02 Mann+Hummel Gmbh Broadband resonator with an entrained water removal system for a fuel cell compressor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211648391U (zh) * 2019-12-25 2020-10-09 曼胡默尔滤清器（上海）有限公司 一种燃料电池排气系统消声器组合装置
CN113027726A (zh) * 2019-12-25 2021-06-25 曼胡默尔滤清器（上海）有限公司 一种燃料电池排气系统消声器组合装置
CN112843796B (zh) * 2020-12-25 2023-02-21 中国第一汽车股份有限公司 一种排放装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2223354Y (zh) * 1994-05-25 1996-03-27 修世玉 低、中频为主宽频带抗性消声器
CN2428575Y (zh) * 2000-06-16 2001-05-02 阮瑞平 排气消声器
JP2005069190A (ja) * 2003-08-27 2005-03-17 Calsonic Kansei Corp 燃料電池自動車用の排気装置
CN103277179A (zh) * 2013-05-27 2013-09-04 柳州五菱汽车有限责任公司 一种汽车消声器
CN206111280U (zh) * 2016-10-25 2017-04-19 力帆实业(集团)股份有限公司 汽车后置消声器
CN210948839U (zh) * 2019-11-15 2020-07-07 河北海特汽车部件有限公司 一种组合型汽车消音排气管结构
CN211648391U (zh) * 2019-12-25 2020-10-09 曼胡默尔滤清器（上海）有限公司 一种燃料电池排气系统消声器组合装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2223354Y (zh) * 1994-05-25 1996-03-27 修世玉 低、中频为主宽频带抗性消声器
CN2428575Y (zh) * 2000-06-16 2001-05-02 阮瑞平 排气消声器
JP2005069190A (ja) * 2003-08-27 2005-03-17 Calsonic Kansei Corp 燃料電池自動車用の排気装置
CN103277179A (zh) * 2013-05-27 2013-09-04 柳州五菱汽车有限责任公司 一种汽车消声器
CN206111280U (zh) * 2016-10-25 2017-04-19 力帆实业(集团)股份有限公司 汽车后置消声器
CN210948839U (zh) * 2019-11-15 2020-07-07 河北海特汽车部件有限公司 一种组合型汽车消音排气管结构
CN211648391U (zh) * 2019-12-25 2020-10-09 曼胡默尔滤清器（上海）有限公司 一种燃料电池排气系统消声器组合装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11946398B1 (en) 2022-10-12 2024-04-02 Mann+Hummel Gmbh Broadband resonator with an entrained water removal system for a fuel cell compressor

Also Published As

Publication number Publication date
CN211648391U (zh) 2020-10-09

Similar Documents

Publication Publication Date Title
WO2021129707A1 (zh) 一种燃料电池排气系统消声器组合装置
RU2011105456A (ru) Шумогасящие устройства для воздуходувок
WO2021129650A1 (zh) 一种用于燃料电池排气系统的自动排水机构
JP2004225595A (ja) 消音器
CN106321193A (zh) 一种轿车后消声器
CN210686088U (zh) 一种发电机组尾气净化消音器
CN205744056U (zh) 降噪装置
CN208565000U (zh) 一种真空泵排气端的降噪装置
CN215595690U (zh) 一种消声器及发动机
CN113027726A (zh) 一种燃料电池排气系统消声器组合装置
CN206144861U (zh) 一种高效消声装置
CN211397814U (zh) 一种消音器
CN110748397B (zh) 一种用于车辆尾气处理装置的水收集器及尾气处理装置
CN204716364U (zh) 带共振结构的阻性消声器
CN206917701U (zh) 排气消声器及排气系统
CN204716340U (zh) 五腔阻抗复合式消声器
CN213063715U (zh) 螺旋火星熄灭消声器
CN205400853U (zh) 摩托车排气系统的消声器
WO2021248719A1 (zh) 一种消音装置
JP2001173425A (ja) 騒音減衰手段を備えた空気処理プラント
KR100501567B1 (ko) 압축기용 소음기
CN203192393U (zh) 阻抗复合型消声装置
CN207686792U (zh) 一种车用阻抗复合型蚌壳式消声器
CN207830071U (zh) 一种用于全封闭压缩机的吸气消音器
WO2022143372A1 (zh) 一种用于燃料电池车的宽频消声器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20907884

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20907884

Country of ref document: EP

Kind code of ref document: A1