WO2017193665A1 - 处理尾气中一氧化碳的方法 - Google Patents
处理尾气中一氧化碳的方法 Download PDFInfo
- Publication number
- WO2017193665A1 WO2017193665A1 PCT/CN2017/074042 CN2017074042W WO2017193665A1 WO 2017193665 A1 WO2017193665 A1 WO 2017193665A1 CN 2017074042 W CN2017074042 W CN 2017074042W WO 2017193665 A1 WO2017193665 A1 WO 2017193665A1
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- WIPO (PCT)
- Prior art keywords
- exhaust gas
- carbon monoxide
- absorption
- gas
- command
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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
- 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
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
-
- 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
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/22—Selection of materials for exhaust purification used in non-catalytic purification 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
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- 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 automobiles, and in particular to a method for treating carbon monoxide in exhaust gas.
- the emission of automobile exhaust is a matter of great concern to the society.
- the exhaust gas emitted by automobiles contains various harmful gases including carbon monoxide (CO), which on the one hand cause environmental pollution and on the other hand cause harm to the human body.
- CO carbon monoxide
- 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 present invention aims to provide a method for treating carbon monoxide in exhaust gas, which can effectively treat carbon monoxide in automobile exhaust gas in time, and reduce environmental pollution and personal injury of exhaust gas.
- the present invention adopts the following technical solutions:
- a method of treating carbon monoxide in exhaust gas comprising the steps of:
- the vehicle exhaust gas is monitored and controlled in real time by infrared detection, and the corresponding electrical signal is generated according to the wavelength range of the absorbed infrared light and the degree of absorption;
- an absorption command is generated by which the exhaust gas is discharged into a vessel having a carbon monoxide absorbent for carbon monoxide treatment.
- the method for treating carbon monoxide in the exhaust gas of the present invention detects the kinds of harmful gases contained in the exhaust gas of the automobile, identifies various harmful gases, and determines whether or not carbon monoxide is contained according to the label. If the exhaust gas is discharged into a container having a carbon monoxide absorbent for carbon monoxide treatment, the present invention realizes targeted treatment of carbon monoxide in the automobile exhaust gas, can effectively improve the efficiency of exhaust gas treatment, and avoid pollution of the automobile exhaust gas to the environment and Personal injury.
- FIG. 1 is a schematic flow chart of a method for treating carbon monoxide in exhaust gas according to an embodiment of the present invention
- FIG. 2 is a flow chart of processing automobile exhaust in an embodiment of the present invention.
- a method for treating carbon monoxide in exhaust gas includes the following steps:
- Step S101 real-time monitoring of the automobile exhaust by means of infrared detection, and generating a corresponding electrical signal according to the wavelength range of the absorbed infrared light and the degree of absorption.
- step S102 the electrical signals are sequentially filtered and amplified.
- the electrical signal can be filtered and amplified by the filtering circuit and the amplifying circuit respectively.
- Step S103 acquiring the type of the harmful gas in the amplified electrical signal, and identifying each harmful gas according to the type of the harmful gas, so as to distinguish different harmful gases.
- automobile exhaust gas usually contains various harmful gases such as nitrogen oxides, hydrocarbons, sulfur oxides, and nitrogen oxides.
- harmful gases such as nitrogen oxides, 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 composition of the harmful gas in the exhaust gas can be detected by the infrared spectrum of the corresponding characteristic frequency.
- Step S104 determining whether the harmful gas in the exhaust gas contains carbon monoxide according to the identifier. If yes, step S105 can be performed at this time.
- Step S105 if the result of the determination in step S104 is YES, that is, it is determined according to the identifier that the harmful gas in the exhaust gas contains carbon monoxide, an absorption command is generated, and the absorption command is adopted.
- the exhaust gas is discharged into a vessel having a carbon monoxide absorbent for carbon monoxide treatment.
- the carbon monoxide absorber may be a composition composed of a porous inorganic carrier and a binary complex of a nitride and copper chloride carried thereon, and the nitride in the composition may be It accounts for 0.3-0.7 molar ratio.
- the inorganic carrier may be: porous ceramic, activated carbon or titanium oxide.
- the nitride can be: pyridine and Composition and the like. The carbon monoxide absorbent can effectively absorb the oxidation in the exhaust gas.
- the step of discharging the exhaust gas into the container having the carbon monoxide absorbent in the step S104 for performing the carbon monoxide treatment may specifically include the following steps:
- the current temperature can be obtained by placing a temperature sensor in a container having a carbon monoxide absorbent;
- the speed of the exhaust gas is calculated based on the rotational speed of the automobile engine, the current temperature, and the concentration of carbon monoxide, and the absorption of carbon monoxide in the container is controlled according to the speed.
- the following formula can be used to calculate the speed of exhaust emissions:
- V CO is the speed at which the exhaust gas is discharged, and in the present invention, the speed at which the exhaust gas is discharged into the container having the carbon monoxide absorbent; r is the rotational speed of the automobile engine, C is the concentration of carbon monoxide, and T is the absorbent having carbon monoxide.
- the current temperature in the container, a is the unit conversion factor, between 0.25-0.47.
- the absorption command may be simultaneously generated. And the catalytic reaction command, through the absorption command and the catalytic reaction command, the automobile exhaust gas is sequentially discharged into a container having a carbon monoxide absorbent and a photocatalytic reactor, as shown in FIG. 2 .
- the exhaust gas may also pass through the photocatalytic reaction layer having the titanium dioxide and emit ultraviolet rays to absorb the nitride and the sulfide, because the embodiment is for the secondary treatment of the automobile exhaust gas.
- the content of harmful substances in the exhaust gas of the automobile is usually low, so that the nitride and the sulfide can be completely absorbed by the photocatalytic reaction.
- the oxygen can be supplied through an oxygen generator. In this step, a small amount of carbon monoxide can also be absorbed to further improve the treatment efficiency of carbon monoxide.
- the gas is treated separately by treating the carbon monoxide and then treating other harmful gases, thereby effectively improving the efficiency of the exhaust gas treatment and better reducing the exhaust gas. harmful gas.
- the separated nitrogen is discharged and the separated carbon dioxide is stored.
- nitrogen gas may float above the carbon dioxide after being pressurized to a certain range.
- the pressure treatment is carried out in a container having an opening at the upper end. When the pressure in the container is sufficient to separate the carbon dioxide and the nitrogen gas, the upper end opening is opened to discharge the nitrogen gas, so that carbon dioxide can be collected.
- carbon dioxide emissions cause environmental pollution in the air, they can be used in industrial and agricultural production, so that carbon dioxide can be effectively utilized to avoid environmental pollution.
- an alarm command and a display command are generated, an early warning is performed according to the alarm command, and the display is performed at a corresponding position of the dashboard of the automobile according to the display instruction.
- early warning and display people can timely and intuitively understand the carbon monoxide information, so that people can overhaul the engine through the warning and display content, and timely control the exhaust gas pollution environment.
- the method for treating carbon monoxide in the exhaust gas detects the kinds of harmful gases contained in the exhaust gas of the automobile, and identifies various harmful gases, and judges whether or not the Carbon monoxide, if it is discharged into a vessel having a carbon monoxide absorbent for carbon monoxide treatment, the embodiment of the invention realizes targeted treatment of carbon monoxide in automobile exhaust gas, can effectively improve the efficiency of exhaust gas treatment, and avoid automobile exhaust gas to the environment. Causes pollution and personal injury.
Abstract
Description
Claims (4)
- 一种处理尾气中一氧化碳的方法,其特征在于,包括如下步骤:通过红外线检测的方式对汽车尾气进行实时监控控,并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;分别通过滤波电路及放大电路对所述电信号进行滤波及放大处理;获取所述放大处理后的电信号中有害气体的种类,并根据有害气体的种类对各有害气体进行标识;根据所述标识判断尾气中的有害气体是否含有一氧化碳;若是,则生成吸收指令,通过该吸收指令将尾气排放至具有一氧化碳吸收剂的容器中进行一氧化碳处理;具体包括:获取红外线穿过尾气后所得到的红外光强度,并根据所述红外光强度计算尾气中一氧化碳的浓度;实时获取汽车发动机的转速以及所述具有一氧化碳吸收剂的容器中的当前温度;根据所述汽车发动机的转速、当前温度和一氧化碳的浓度计算尾气排放的速度,并根据所述速度来控制一氧化碳在容器中的吸收;其中,采用如下公式来计算所述尾气排放的速度:式中,VCO为尾气排放的速度,r为汽车发动机的转速,C为一氧化碳的浓度,T为当前温度,a为单位转换系数,取值范围为0.25-0.47;在对尾气进行处理之后,对已经处理过的汽车尾气进行收集,并进行加压至将尾气中的二氧化碳及氮气进行分离;将分离后的氮气排放出去,并存储分离出来的二氧化碳。
- 根据权利要求1所述的处理尾气中一氧化碳的方法,其特征在于,若根据所述标识判断尾气中的有害气体中并非只含有一氧化碳时,则同时生成吸收指令及催化反应指令,通过该吸收指令及催化反应指令将汽车尾气依次排放中具有一氧化碳吸收剂的容器及光催化反应器进行处理。
- 根据权利要求1所述的处理尾气中一氧化碳的方法,其特征在于,在根据所述标识判断尾气中的有害气体含有一氧化碳时,生成报警指令及显示指令,根据报警指令进行预警,并根据显示指令在汽车仪表盘的相应位置进行显示。
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CN201610300168.3A CN105840284A (zh) | 2016-05-09 | 2016-05-09 | 处理尾气中一氧化碳的方法及系统 |
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PCT/CN2017/077195 WO2017193701A1 (zh) | 2016-05-09 | 2017-03-18 | 共享单车的倒地检测方法 |
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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 |
CN106014570A (zh) * | 2016-05-09 | 2016-10-12 | 黄安武 | 处理汽车尾气中一氧化碳的方法及系统 |
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CN107851325A (zh) | 2018-03-27 |
CN105840284A (zh) | 2016-08-10 |
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