阅读说明：本技术 一种汽车尾气检测净化方法 (Automobile exhaust detection and purification method ) 是由 王培鑫 杨峰 岳金方 王波 杨阳 罗志臣 于 2019-07-24 设计创作，主要内容包括：本发明公开了一种汽车尾气检测净化方法,包括以下步骤：接收汽车发送的汽车尾气数据,汽车尾气从尾气进口进入气体检测腔进行检测,检测之后通过废气处理模块进行废气处理,处理完成后通过气体出口排出,在气体检测腔一侧设置光源,光源发出激光对进入气体检测腔的尾气进行照射穿过透镜,图像采集装置在这个过程中获得透过气体检测腔后的近红外光光谱信息,本发明涉及汽车尾气处理技术领域。该汽车尾气检测净化方法,对汽车排放的尾气进行监测对比,方便处理模块对尾气处理时可以得到更多的数据,方便后续的尾气净化,对汽车尾气进行二次处理,不会有排放超标的氮氧化物,有效的防止汽车尾气对环境的污染和对人体的伤害。(the invention discloses a method for detecting and purifying automobile exhaust, which comprises the following steps: the invention relates to the technical field of automobile exhaust processing, and discloses a near-infrared light spectrum information acquisition device. This automobile exhaust detects purification method monitors the contrast to the tail gas that the car discharged, can obtain more data when convenient processing module is handled tail gas, makes things convenient for subsequent tail gas clean-up, carries out secondary treatment to automobile exhaust, can not have the nitrogen oxide that discharges and exceed standard, the effectual pollution of preventing automobile exhaust to the environment and the injury to the human body.)

1. a method for detecting and purifying automobile exhaust is characterized by comprising the following steps: the method comprises the following steps:

The method comprises the following steps: receiving automobile exhaust data sent by an automobile, enabling the automobile exhaust to enter a gas detection cavity from an exhaust inlet for detection, carrying out exhaust treatment through an exhaust treatment module after detection, and discharging through a gas outlet after treatment;

Step two: a light source is arranged on one side of the gas detection cavity, laser emitted by the light source irradiates tail gas entering the gas detection cavity and penetrates through the lens, the image acquisition device acquires near infrared spectrum information after penetrating through the gas detection cavity in the process, the transmission process of gas detection is completed, and the spectrometer receives the detected information at the moment;

Step three: the spectrometer sends detected data to a receiving module of a processing module, the receiving module sends the received data to a comparison module for comparison processing, the data processed by the comparison module is sent to a command sending module, the command sending module sends a waste processing command to an exhaust gas processing module through an output port on one hand, the command sending module sends processing information to a display module through a data conveying unit on the other hand, and the command sending module also receives a preset command from the preset module;

Step four: after the data of the tail gas exhausted by the automobile engine is obtained, whether the discharge amount of nitrogen oxides in the tail gas of the automobile exceeds a threshold value or not is judged according to the detection result, the waste gas treatment module is started, the nitrogen oxides in the tail gas of the automobile are ionized in a high-energy electron beam irradiation mode, and the discharge amount of the nitrogen oxides is obtained according to the electric signal analysis, so that the secondary absorption treatment of the tail gas of the automobile is realized.

2. The method for detecting and purifying the automobile exhaust according to claim 1, characterized in that: the lens and the spectrometer form an image acquisition device.

3. The method for detecting and purifying the automobile exhaust according to claim 1, characterized in that: the spectrometer adopts a spectrometer with a built-in CCD detector.

4. The method for detecting and purifying the automobile exhaust according to claim 1, characterized in that: the entering gas detection cavity is made of a material which does not absorb near infrared light, so that external light interference is prevented, and the detection result is prevented from being influenced by the material in the gas chamber.

5. The method for detecting and purifying the automobile exhaust according to claim 1, characterized in that: the spectrometer adopts the covering wavelength of 200-100nm or 1000-1800 nm.

6. the method for detecting and purifying the automobile exhaust according to claim 1, characterized in that: the waste gas treatment module is also filled with a carbon monoxide absorbent, the carbon monoxide absorbent is a composition consisting of a porous inorganic carrier and a binary complex of nitride and copper chloride carried on the porous inorganic carrier, and the nitride in the composition accounts for 0.55-0.90 molar ratio.

7. The method for detecting and purifying the automobile exhaust according to claim 6, characterized in that: the inorganic carrier includes: porous ceramic, activated carbon or titanium oxide, said nitride being pyridine and combinations thereof.

8. The method for detecting and purifying the automobile exhaust according to claim 1, characterized in that: the gas detection cavity comprises a pressure sensor and a temperature sensor, wherein the pressure sensor and the temperature sensor send detected signals to a processing module.

Technical Field

The invention relates to the technical field of automobile exhaust treatment, in particular to an automobile exhaust detection and purification method.

background

Automobile exhaust emission reaches a very serious degree in a large city, although a complete set of regulations for automobile exhaust emission exists in China, the automobile exhaust emission can be detected only after entering a specified detection point within the legal time of automobiles. The method for detecting the tail gas generally comprises the steps of once a year or once a quarter, and the tail gas of the automobile cannot be detected in other times, namely the tail gas of the automobile cannot be detected in most of the time in a year. Moreover, even if the detection result of the automobile in the exhaust detection once a year or once a quarter is qualified, whether the exhaust emitted by the automobile in other time in a year is qualified or not cannot be guaranteed, so that the existing exhaust detection method cannot effectively reduce the emission of the automobile exhaust exceeding the automobile exhaust emission standard, and how to timely treat the nitrogen oxide in the automobile exhaust becomes a problem to be solved urgently.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a method for detecting and purifying automobile exhaust, which solves the problems that the existing exhaust detection method can not effectively reduce the emission of the automobile exhaust exceeding the automobile exhaust emission standard and can not timely treat the nitrogen oxide in the automobile exhaust.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a method for detecting and purifying automobile exhaust comprises the following steps:

The method comprises the following steps: receiving automobile exhaust data sent by an automobile, enabling the automobile exhaust to enter a gas detection cavity from an exhaust inlet for detection, carrying out exhaust treatment through an exhaust treatment module after detection, and discharging through a gas outlet after treatment;

step two: a light source is arranged on one side of the gas detection cavity, laser emitted by the light source irradiates tail gas entering the gas detection cavity and penetrates through the lens, the image acquisition device acquires near infrared spectrum information after penetrating through the gas detection cavity in the process, the transmission process of gas detection is completed, and the spectrometer receives the detected information at the moment;

Step three: the spectrometer sends detected data to a receiving module of a processing module, the receiving module sends the received data to a comparison module for comparison processing, the data processed by the comparison module is sent to a command sending module, the command sending module sends a waste processing command to an exhaust gas processing module through an output port on one hand, the command sending module sends processing information to a display module through a data conveying unit on the other hand, and the command sending module also receives a preset command from the preset module;

step four: after the data of the tail gas exhausted by the automobile engine is obtained, whether the discharge amount of nitrogen oxides in the tail gas of the automobile exceeds a threshold value or not is judged according to the detection result, the waste gas treatment module is started, the nitrogen oxides in the tail gas of the automobile are ionized in a high-energy electron beam irradiation mode, and the discharge amount of the nitrogen oxides is obtained according to the electric signal analysis, so that the secondary absorption treatment of the tail gas of the automobile is realized.

Preferably, the lens and the spectrometer constitute an image acquisition device.

Preferably, the spectrometer is a spectrometer with a built-in CCD detector.

preferably, the entering gas detection cavity is made of a material which does not absorb near infrared light, so that external light interference is prevented, and the detection result is prevented from being influenced by the material in the air chamber.

Preferably, the spectrometer is used with a wavelength of 200-100nm or 1000-1800 nm.

Preferably, the exhaust gas treatment module is further filled with a carbon monoxide adsorbent, the carbon monoxide adsorbent is a composition composed of a porous inorganic support and a binary complex of nitride and copper chloride supported thereon, and the nitride in the composition accounts for 0.55-0.90 mol ratio.

Preferably, the inorganic support includes: porous ceramic, activated carbon or titanium oxide, said nitride being pyridine and combinations thereof.

Preferably, the gas detection chamber further comprises a pressure sensor and a temperature sensor inside, and the pressure sensor and the temperature sensor send detected signals to the processing module.

(III) advantageous effects

The invention provides a method for detecting and purifying automobile exhaust. The method has the following beneficial effects:

The automobile exhaust detection and purification method monitors and contrasts the exhaust emitted by an automobile, so that more data can be obtained when the processing module processes the exhaust conveniently, and subsequent exhaust purification is facilitated.

According to the automobile exhaust detection and purification method, the exhaust pressure value and the nitrogen oxide emission quantity at the outlet of the exhaust pipe of the automobile engine are used for judging whether the automobile exhaust needs to be subjected to secondary treatment, so that nitrogen oxide exceeding the standard cannot be discharged, and the pollution of the automobile exhaust to the environment and the damage to a human body are effectively prevented.

Drawings

FIG. 1 is a schematic flow diagram of a detection purification process according to the present invention;

FIG. 2 is a flow diagram of a processing module according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a method for detecting and purifying automobile exhaust comprises the following steps:

The method comprises the following steps: receiving automobile exhaust data sent by an automobile, enabling the automobile exhaust to enter a gas detection cavity from an exhaust inlet for detection, carrying out exhaust treatment through an exhaust treatment module after detection, and discharging through a gas outlet after treatment;

step two: a light source is arranged on one side of the gas detection cavity, laser emitted by the light source irradiates tail gas entering the gas detection cavity and penetrates through the lens, the image acquisition device acquires near infrared spectrum information after penetrating through the gas detection cavity in the process, the transmission process of gas detection is completed, and the spectrometer receives the detected information at the moment;

Step three: the spectrometer sends detected data to a receiving module of a processing module, the receiving module sends the received data to a comparison module for comparison processing, the data processed by the comparison module is sent to a command sending module, the command sending module sends a waste processing command to an exhaust gas processing module through an output port on one hand, the command sending module sends processing information to a display module through a data conveying unit on the other hand, and the command sending module also receives a preset command from the preset module;

Step four: after the data of the tail gas exhausted by the automobile engine is obtained, whether the discharge amount of nitrogen oxides in the tail gas of the automobile exceeds a threshold value or not is judged according to the detection result, the waste gas treatment module is started, the nitrogen oxides in the tail gas of the automobile are ionized in a high-energy electron beam irradiation mode, and the discharge amount of the nitrogen oxides is obtained according to the electric signal analysis, so that the secondary absorption treatment of the tail gas of the automobile is realized.

Preferably, the lens and the spectrometer constitute an image acquisition device.

preferably, the spectrometer is a spectrometer with a built-in CCD detector.

Preferably, the entering gas detection cavity is made of a material which does not absorb near infrared light, so that external light interference is prevented, and the detection result is prevented from being influenced by the material in the air chamber.

Preferably, the spectrometer is used with a wavelength of 200-100nm or 1000-1800 nm.

Preferably, the exhaust gas treatment module is further filled with a carbon monoxide adsorbent, the carbon monoxide adsorbent is a composition composed of a porous inorganic support and a binary complex of nitride and copper chloride supported thereon, and the nitride in the composition accounts for 0.55-0.90 mol ratio.

preferably, the inorganic support includes: porous ceramic, activated carbon or titanium oxide, said nitride being pyridine and combinations thereof.

preferably, the gas detection chamber further comprises a pressure sensor and a temperature sensor inside, and the pressure sensor and the temperature sensor send detected signals to the processing module.

When the automobile exhaust gas detection device is used, automobile exhaust gas data sent by an automobile are received, the automobile exhaust gas enters the gas detection cavity from the exhaust gas inlet for detection, the exhaust gas is treated through the exhaust gas treatment module after the detection, and the automobile exhaust gas is discharged through the gas outlet after the treatment;

a light source is arranged on one side of the gas detection cavity, laser emitted by the light source irradiates tail gas entering the gas detection cavity and penetrates through the lens, the image acquisition device acquires near infrared spectrum information after penetrating through the gas detection cavity in the process, the transmission process of gas detection is completed, and the spectrometer receives the detected information at the moment;

The spectrometer sends detected data to a receiving module of a processing module, the receiving module sends the received data to a comparison module for comparison processing, the data processed by the comparison module is sent to a command sending module, the command sending module sends a waste processing command to an exhaust gas processing module through an output port on one hand, the command sending module sends processing information to a display module through a data conveying unit on the other hand, and the command sending module also receives a preset command from the preset module;

after the data of the tail gas exhausted by the automobile engine is obtained, whether the discharge amount of nitrogen oxides in the tail gas of the automobile exceeds a threshold value or not is judged according to the detection result, the waste gas treatment module is started, the nitrogen oxides in the tail gas of the automobile are ionized in a high-energy electron beam irradiation mode, and the discharge amount of the nitrogen oxides is obtained according to the electric signal analysis, so that the secondary absorption treatment of the tail gas of the automobile is realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.