WO2017193689A1 - 汽车尾气中的一氧化碳净化方法 - Google Patents
汽车尾气中的一氧化碳净化方法 Download PDFInfo
- Publication number
- WO2017193689A1 WO2017193689A1 PCT/CN2017/075937 CN2017075937W WO2017193689A1 WO 2017193689 A1 WO2017193689 A1 WO 2017193689A1 CN 2017075937 W CN2017075937 W CN 2017075937W WO 2017193689 A1 WO2017193689 A1 WO 2017193689A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- automobile
- exhaust gas
- carbon monoxide
- purifier
- exhaust
- Prior art date
Links
Classifications
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0857—Carbon 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
- 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
-
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
-
- 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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/022—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting CO or CO2
-
- 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
-
- 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
- Y02T10/40—Engine management systems
Definitions
- the invention relates to the technical field of automobile exhaust gas control, and particularly relates to a method for purifying carbon monoxide in automobile exhaust gas.
- the car exhaust gas purifier installed inside the car can usually absorb the harmful gas once, but when the road surface is uneven, for example, the car engine needs to output a large power. At this time, exhaust gas with a relatively high amount of harmful gas is discharged, and the exhaust gas purifier of the automobile is difficult to absorb the harmful gas in the exhaust gas, thereby causing environmental pollution.
- some harmful gases in the exhaust of the car can also cause harm to the human body.
- carbon monoxide in the automobile exhaust combines with hemoglobin in the blood 250 times faster than oxygen. Carbon monoxide enters the blood circulation through the respiratory tract and forms a carboxyhemoglobin after affinity with hemoglobin, thereby weakening the function of blood to transport oxygen to tissues.
- the central nervous system causes dysfunction such as human feelings, reactions, understanding, memory, etc., and the severe ones endanger the blood circulation system, leading to life-threatening. Therefore, even a slight inhalation of carbon monoxide may cause terrible anoxic damage.
- the object of the present invention is to provide a vehicle exhaust
- the carbon monoxide purification method can effectively control the content of carbon monoxide in the exhaust gas of the automobile, and reduce the pollution of the automobile exhaust gas to the environment and the harm to the human body.
- the present invention adopts the following technical solutions:
- a method for purifying carbon monoxide in automobile exhaust gas comprises the following steps:
- the second purifier valve of the automobile is opened, and the exhaust of the automobile is discharged to the second purifier of the automobile for carbon monoxide treatment, wherein the second purifier of the automobile is filled with a carbon monoxide adsorbent.
- the carbon monoxide purification method in the automobile exhaust gas of the present invention determines whether it is necessary to perform secondary treatment on the automobile exhaust gas through the exhaust pressure value at the outlet of the exhaust pipe of the automobile engine and the carbon monoxide emission amount, and if so, The vehicle exhaust is discharged to the second purifier of the car for carbon monoxide treatment. Therefore, the vehicle will not emit carbon monoxide that exceeds the standard when the vehicle is driven on various road surfaces or the engine work is different, effectively preventing the automobile exhaust gas from polluting the environment and harming the human body.
- FIG. 1 is a schematic flow chart of a method for purifying carbon monoxide in automobile exhaust gas according to an embodiment of the present invention.
- a method for purifying carbon monoxide in automobile exhaust gas comprises the following steps:
- step S101 the exhaust pressure value at the outlet of the exhaust pipe of the automobile engine is obtained. Since the car produces different power on different roads or when the speed of the car is different, the exhaust pressure at the outlet of the exhaust pipe of the automobile engine is also different. When the exhaust pressure value is different, the content of harmful gases contained in the exhaust gas at the outlet of the exhaust pipe of the engine is also different.
- Step S102 when the exhaust pressure value reaches a predetermined value, detecting exhaust gas at the outlet of the automobile exhaust gas purifier.
- the exhaust gas of the automobile exhaust gas purifier outlet is detected, which can effectively reduce the number of times and time of using the equipment used in the process, and prolong the service life of the equipment. .
- the type and content of the harmful gas contained in the exhaust gas can be separately detected by a plurality of gas detectors.
- M% the content of all harmful gases in the exhaust gas discharged from the outlet of the automobile exhaust gas purifier per unit time
- the harmful gas in the automobile exhaust gas is usually discharged after the automobile exhaust gas purifier is absorbed.
- the pressure value is greater than the predetermined value, there is a possibility that the automobile exhaust exceeds the standard.
- the predetermined value can be based on different engines Determine after testing. For example, by detecting the content of harmful gas in the exhaust gas at the exhaust pipe of the automobile engine exhaust pipe, when the content reaches the maximum value that can be absorbed by the automobile exhaust gas purifier, the exhaust gas at the outlet of the exhaust pipe of the automobile engine at this time can be exhausted.
- the magnitude of the pressure value is set to the predetermined value.
- Step S103 determining whether the carbon monoxide emission in the automobile exhaust exceeds a threshold according to the detected result. If yes, step S104 is performed. Otherwise, the process returns to step S101 or step S102.
- the threshold can be set to 135 mg/km.
- Step S104 if the determination result in the step S103 is YES, the second purifier valve of the automobile is opened, and the automobile exhaust gas is discharged to the second purifier of the automobile for carbon monoxide treatment, wherein the second purifier of the automobile is inside A carbon monoxide adsorbent is packed for absorbing carbon monoxide in the exhaust of the automobile.
- the automobile second purifier is a device specially used for secondary absorption treatment of various harmful gases in the automobile exhaust gas, and can be connected at the exit of the automobile exhaust gas purifier.
- the carbon monoxide absorbent may be a composition composed of a porous inorganic carrier and a binary complex of a nitride and a copper chloride carried thereon, and the nitride in the composition accounts for 0.43- 0.78 molar ratio;
- the inorganic carrier comprises: honeycomb ceramic, activated carbon or titanium oxide; the nitride is pyridine and Compositions.
- the process of detecting exhaust gas at the outlet of the automobile exhaust gas purifier may include the following steps:
- automobile exhaust gas usually contains various harmful gases such as carbon monoxide, hydrocarbons, sulfur oxides, and nitrogen oxides.
- harmful gases such as carbon monoxide, hydrocarbons, sulfur oxides, and nitrogen oxides.
- Each of these gases has a specific characteristic absorption band and characteristic frequency that is strongly absorbed when the infrared spectrum falls near the characteristic frequency band. Therefore, the infrared spectroscopy of the corresponding characteristic frequency can be used to detect the components of the harmful gas in the exhaust gas, and the amount of the absorbed external spectrum can detect the content of the corresponding gas (ie, the discharge amount).
- the following steps may be further included:
- the opening time of the second purifier valve of the automobile is controlled according to the delay instruction, and the exhaust pressure value at the outlet of the exhaust pipe of the automobile engine is stopped during the opening time.
- the vehicle when the actual number of times the exhaust pressure value is greater than or equal to the predetermined value reaches a set threshold within a predetermined time, the vehicle is automatically determined to travel on a rough mountain road, otherwise the car is automatically determined. Drive on a flat road.
- the predetermined time is generally set to a time of a few seconds, for example 3-5 seconds. If by judging that the car is driving On the rugged mountain road, you can extend the opening time of the second purifier valve of the car, for example, to 5 minutes or 10 minutes.
- the opening time can be set in advance, and the specific setting process can adopt the prior art, and details are not described herein.
- the predetermined time, the predetermined value, the set threshold, and the like may be set by using similar means according to actual needs.
- the process of controlling the opening time of the second purifier valve of the automobile according to the delay instruction may specifically include the following steps:
- Extracting a time value in the delay instruction is proportional to the exhaust pressure value and the actual number of times;
- a timer After opening the second purifier valve of the automobile, a timer is turned on, and the second purifier valve of the automobile is turned off when the timer reaches the time value.
- the method may further include the following steps: generating an alarm instruction, and displaying an alarm identifier at a predetermined position of the dashboard of the automobile according to the alarm instruction.
- the carbon monoxide emission in the exhaust gas can be displayed more intuitively and timely, so that people can overhaul the engine through the alarm and the displayed content, and timely control the carbon monoxide pollution in the exhaust gas to pollute the environment.
- the process of discharging the automobile exhaust gas to the second purifier of the automobile may specifically include the following steps:
- the reference speed is calculated based on the rotational speed, the current temperature, the exhaust pressure value, and the carbon monoxide emission amount, and the speed at which the vehicle exhaust is discharged to the second purifier of the automobile is adjusted according to the reference speed.
- V is the reference speed
- r is the rotational speed of the automobile engine
- C is the carbon monoxide emission
- T is the current temperature in the second purifier of the automobile
- P is the exhaust pressure value
- a is a constant conversion coefficient, which is between 0.28 Between -0.5.
- the carbon monoxide purification method in the automobile exhaust gas determines whether the exhaust gas of the automobile is required to be reprocessed by the exhaust pressure value at the outlet of the exhaust pipe of the automobile engine and the carbon monoxide emission amount. If it is, the car exhaust is discharged to the second purifier of the car for carbon monoxide treatment. Therefore, the vehicle will not emit carbon monoxide that exceeds the standard when the vehicle is driven on various road surfaces or the engine work is different, effectively preventing the automobile exhaust gas from polluting the environment and harming the human body.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims (5)
- 一种汽车尾气中的一氧化碳净化方法,其特征在于,包括如下步骤:获取汽车发动机排气管出口处的排气压力值;当所述排气压力值达到预定值时,对汽车尾气净化器出口的尾气进行检测;根据检测的结果判断汽车尾气中的一氧化碳排放量是否超过阈值;若是,则将汽车第二净化器阀门打开,将所述汽车尾气排放到所述汽车第二净化器进行一氧化碳处理,其中,所述汽车第二净化器内填充有一氧化碳吸附剂;所述一氧化碳吸收剂为由多孔无机载体和其上所载有的氮化物和氯化铜的二元配合物构成的组合物,且该组合物中氮化物占0.43-0.78摩尔比;所述无机载体包括:蜂窝陶瓷、活性炭或者氧化钛;所述氮化物为吡啶及的组合物;根据所述延时指令控制所述汽车第二净化器阀门的打开时间的过程包括:提取所述延时指令中的时间值;其中,所述时间值与所述排气压力值以及所述实际次数成正比关系;在打开所述汽车第二净化器阀门后,开启一个定时器,在该定时器到达所述时间值时关闭所述汽车第二净化器阀门;将所述汽车尾气排放到所述汽车第二净化器的过程包括:实时获取汽车发动机的转速以及所述汽车第二净化器中的当前温度;根据转 速、当前温度、排气压力值以及一氧化碳排放量计算出参考速度,并根据所述参考速度来调节汽车尾气排放到所述汽车第二净化器中的速度。
- 根据权利要求1所述的汽车尾气中的一氧化碳净化方法,其特征在于,所述阈值为135毫克/公里。
- 根据权利要求1所述的汽车尾气中的一氧化碳净化方法,其特征在于,所述对汽车尾气净化器出口的尾气进行检测的过程包括:通过红外线检测的方式对汽车尾气净化器出口的尾气进行检测;根据被吸收的红外线的波长范围及被吸收的程度,生成相应的电信号;根据该电信号分析得出一氧化碳排放量。
- 根据权利要求1所述的汽车尾气中的一氧化碳净化方法,其特征在于,在所述获取对汽车发动机排气管出口处的排气压力值步骤之后,还包括以下步骤:获取所述排气压力值在预定时间内大于或等于预定值的实际次数;判断所述实际次数是否大于或等于设定阈值;若是,则发送延长打开所述汽车第二净化器阀门的延时指令;根据所述延时指令控制所述汽车第二净化器阀门的打开时间,并在该打开时间内停止获取汽车发动机排气管出口处的排气压力值。
- 根据权利要求1所述的汽车尾气中的一氧化碳净化方法,其特征在于,在判断得出汽车尾气中的一氧化碳排放量超过阈值之后, 还包括如下步骤:生成报警指令,根据该报警指令在汽车仪表盘的预定位置显示报警标识。
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CN201610301598.7 | 2016-05-09 | ||
CN201610301598.7A CN105822389A (zh) | 2016-05-09 | 2016-05-09 | 汽车尾气中的一氧化碳净化方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10563596B2 (en) | 2017-03-31 | 2020-02-18 | Generac Power Systems, Inc. | Carbon monoxide detecting system for internal combustion engine-based machines |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105822389A (zh) * | 2016-05-09 | 2016-08-03 | 黄安武 | 汽车尾气中的一氧化碳净化方法 |
CN105840284A (zh) * | 2016-05-09 | 2016-08-10 | 黄安武 | 处理尾气中一氧化碳的方法及系统 |
CN105863794A (zh) * | 2016-05-09 | 2016-08-17 | 黄安武 | 汽车尾气排放控制方法 |
CN115631081A (zh) * | 2022-12-22 | 2023-01-20 | 睿至科技集团有限公司 | 一种碳目标实现方法及系统 |
CN115983735A (zh) * | 2023-01-10 | 2023-04-18 | 中国科学院空天信息创新研究院 | 一种园区多级碳排放控制系统及方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US10563596B2 (en) | 2017-03-31 | 2020-02-18 | Generac Power Systems, Inc. | Carbon monoxide detecting system for internal combustion engine-based machines |
US11248540B2 (en) | 2017-03-31 | 2022-02-15 | Generac Power Systems, Inc. | Carbon monoxide detecting system for internal combustion engine-based machines |
US11905894B2 (en) | 2017-03-31 | 2024-02-20 | Generac Power Systems, Inc. | Carbon monoxide detecting system for internal combustion engine-based machines |
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