CN102852595A

CN102852595A - Oxygen plasma purification device of automobile exhaust PM2.5 particles and purification method thereof

Info

Publication number: CN102852595A
Application number: CN2012101158653A
Authority: CN
Inventors: 吴福儿
Original assignee: University of Shaoxing
Current assignee: Jiangsu Huaxin Environmental Protection Equipment Technology Co ltd
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2013-01-02
Anticipated expiration: 2032-04-19
Also published as: CN102852595B

Abstract

The invention discloses an oxygen plasma purification device of automobile exhaust PM2.5 particles and a purification method thereof. The device comprises a plasma generator arranged on an automobile exhaust pipe, and the plasma generator is communicated with the automobile exhaust pipe through a small hole. The purification method of the device comprises the following steps of entering automobile exhaust generated in an engine to enter the automobile exhaust pipe, enabling plasmas generated by the plasma generator to enter the automobile exhaust pipe through the small hole, enabling the plasmas and the PM2.5 particles in the automobile exhaust to react, and accordingly removing the PM2.5 particles in the automobile exhaust effectively. The oxygen plasma purification device is simple in structure and low in cost.

Description

Oxonium ion purification plant and the purification methods thereof such as vehicle exhaust PM2.5 particle

Technical field

The present invention relates to the purification plant of PM2.5 particle in the vehicle exhaust, the oxonium ion purification plants such as especially a kind of vehicle exhaust PM2.5 particle, and the purification method of using this device.

Background technique

PM2.5 refers to that diameter is less than or equal to 2.5 microns particulate matter in the atmosphere, is also referred to as to enter the lung particulate matter.Its diameter be less than the people the hairline thickness 1/20.Although PM2.5 is content component seldom in the earth atmosphere composition, it has important impact to air quality and visibility etc.Compare with thicker Atmospheric particulates, the PM2.5 particle diameter is little, is rich in a large amount of poisonous and harmful substances and the waiting time in atmosphere is long, fed distance is far away, thereby larger on the impact of health and atmosphere quality.Can directly enter bronchus after being inhaled into human body, disturb the gas exchange of lung, cause the disease that comprises the aspects such as asthma, bronchitis and cardiovascular disease, can damage the ability of hemoglobin delivery of oxygen, forfeiture blood.Concerning the patient of anaemia and blood circulation disorder, may produce serious consequence.For example can increase the weight of respiratory disease, even cause the heart diseases such as congestive heart failure and coronary artery.These particles can also enter blood by bronchus and alveolar in a word, and harmful gas wherein, heavy metal etc. are dissolved in the blood, and be larger to the injury of health.The physiological structure of human body has determined PM2.5 without any filtration, obstruction ability.

One of main source that PM2.5 produces is through burning and the residue of discharging contains the toxic substances such as heavy metal mostly in the process such as motor vehicle exhaust emission.

Summary of the invention

The object of the invention is to: the oxonium ion purification plants such as a kind of vehicle exhaust PM2.5 particle are provided, can remove the PM2.5 particle that contains in the vehicle exhaust, simple in structure, cost is lower.

Another object of the present invention is to: a kind of method of using the oxonium ion purification plants such as above-mentioned vehicle exhaust PM2.5 particle that vehicle exhaust PM2.5 particle is purified is provided, can removes the PM2.5 particle in the vehicle exhaust.

For achieving the above object, the present invention can take following technical proposals:

The oxonium ion purification plants such as a kind of vehicle exhaust PM2.5 of the present invention particle comprise the plasma producer that is arranged on the automobile exhaust pipe, are communicated with by aperture between described plasma producer and the automobile exhaust pipe.

Described plasma generator comprises a housing, be symmetricly set in upper and lower two anode blocks in the described housing, be horizontally placed on the cathode bar in the described housing, the left end of described cathode bar is cathode taps, this cathode taps is positioned at the right side of described upper and lower anode block gap, be provided with cooling jacket at the outside bag of described cathode bar, also be provided with suction port on described housing, this suction port is communicated with by air cavity with described gap.

Described cooling jacket is provided with cooling water intake and coolant outlet, is serially connected with water tank and circulating water pump between described cooling water intake and coolant outlet; The super-high pressure pulse electric current of described anode block and cathode bar is supplied with by controllable silicon controller, and described controllable silicon controller is connected in external power supply by transformer.

A kind of method of using the oxonium ion purification plants such as described vehicle exhaust PM2.5 particle that vehicle exhaust PM2.5 particle is purified may further comprise the steps:

The vehicle exhaust that produces in the motor enters in the automobile exhaust pipe, the plasma that plasma generator produces also enters in the automobile exhaust pipe by described aperture, the collision of free radicals and contaminant molecule makes the chemical bond rupture of contaminant molecule in the plasma, electronics and ambient gas molecular collision and produce the extremely strong free atom of oxidability and free radicals isoreactivity material, have an effect with the PM2.5 particle in the vehicle exhaust, thereby effectively remove PM2.5 particle in the vehicle exhaust.

Compared with prior art the invention has the beneficial effects as follows: owing to adopting technique scheme, be arranged between plasma producer and the automobile exhaust pipe on the automobile exhaust pipe and be communicated with by aperture, this structure, the vehicle exhaust that produces in the motor enters in the automobile exhaust pipe, the plasma that plasma generator produces also enters in the automobile exhaust pipe by described aperture, have an effect with the PM2.5 particle in the vehicle exhaust, make the PM2.5 particle aggregation become larger particles, thereby effectively remove the PM2.5 particle in the vehicle exhaust, larger particles is discharged from automobile exhaust pipe with vehicle exhaust, can remove the PM2.5 particle that contains in the vehicle exhaust, minimizing is to the harm of human body, simple in structure, cost is lower.

The method that the present invention uses the oxonium ion purification plants such as above-mentioned vehicle exhaust PM2.5 particle that vehicle exhaust PM2.5 particle is purified can remove the PM2.5 particle in the vehicle exhaust.Vehicle exhaust PM2.5 particle is rich in a large amount of pollutant (be the residue of fuel oil through burning and producing, wherein contain the toxic substances such as heavy metal).The process of pollutant is mainly utilized two kinds of effects in the plasma treatment vehicle exhaust: the one, and the heat that interparticle collision and particle and phase surface collision produce makes the chemical bond rupture of contaminant molecule; The 2nd, the collision of free radicals and contaminant molecule makes the chemical bond rupture of contaminant molecule in the dissociation process.What wherein the article on plasma precursor reactant played a major role is non clastic collision, and this is because the variation of interior energy can cause many kinds of inside particles changes, produce as excite, ionization, compound, charge exchange, electron attachment etc., thereby cause various chemical reactions.Chemical reaction depends primarily on the gas componant of average energy, electron density, gas temperature, dusty gas molecular concentration and the coexistence of electronics.Utilize the high-voltage pulse corona, make electron production " snowslide " effect, thereby produce a large amount of electronics (5～20 eV).Electronics and ambient gas molecular collision and produce the extremely strong OH of oxidability, O, HO ₂, O ₃Deng free atom and free radicals isoreactivity material, have an effect with vehicle exhaust PM2.5 particle, thereby effectively remove PM2.5 particle in the vehicle exhaust.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation of Fig. 1 applying plasma generator.

Embodiment

Shown in Fig. 1 to 2, the oxonium ion purification plants such as a kind of vehicle exhaust PM2.5 of the present invention particle comprise the plasma producer 4 that is arranged on the automobile exhaust pipe 3, are communicated with by aperture between described plasma producer 4 and the automobile exhaust pipe 3.Described plasma generator 4 comprises a housing, be symmetricly set in upper and lower two anode blocks 403 in the described housing, be horizontally placed on the cathode bar 405 in the described housing, the left end of described cathode bar 405 is cathode taps 404, this cathode taps 404 is positioned at the right side of described upper and lower anode block 403 gaps 4013, be provided with cooling jacket 4011 at described cathode bar 405 outside bags, also be provided with suction port 4010 on described housing, this suction port 4010 is communicated with by air cavity 4012 with described gap 4013.Described cooling jacket 4011 is provided with cooling water intake 406 and coolant outlet 409, is serially connected with water tank 408 and circulating water pump 407 between described cooling water intake 406 and coolant outlet 409; The super-high pressure pulse electric current of described anode block 403 and cathode bar 405 is supplied with by controllable silicon controller 402, and described controllable silicon controller 402 is connected in external power supply by transformer 401.

The vehicle exhaust of motor 1 interior generation enters in the automobile exhaust pipe 3, the plasma 4014 that plasma generator 4 produces also enters in the automobile exhaust pipe 3 by described aperture, the collision of free radicals and contaminant molecule makes the chemical bond rupture of contaminant molecule in the plasma, electronics and ambient gas molecular collision and produce the extremely strong free atom of oxidability and free radicals isoreactivity material, have an effect with the PM2.5 particle in the vehicle exhaust, thereby effectively remove the PM2.5 particle in the vehicle exhaust, larger particles is discharged from automobile exhaust pipe 3 with vehicle exhaust.

Claims

1. oxonium ion purification plants such as vehicle exhaust PM2.5 particle is characterized in that: comprise the plasma producer (4) that is arranged on the automobile exhaust pipe (3), be communicated with by aperture between described plasma producer (4) and the automobile exhaust pipe (3).

2. the oxonium ion purification plant such as vehicle exhaust PM2.5 particle according to claim 1, it is characterized in that: described plasma generator (4) comprises a housing, be symmetricly set in upper in the described housing, lower two anode blocks (403), be horizontally placed on the cathode bar (405) in the described housing, the left end of described cathode bar (405) is cathode taps (404), this cathode taps (404) be positioned at described on, the right side of lower anode block (403) gap (4013), be provided with cooling jacket (4011) at the outside bag of described cathode bar (405), also be provided with suction port (4010) on described housing, this suction port (4010) is communicated with by air cavity (4012) with described gap (4013).

3. the oxonium ion purification plant such as vehicle exhaust PM2.5 particle according to claim 2, it is characterized in that: described cooling jacket (4011) is provided with cooling water intake (406) and coolant outlet (409), is serially connected with water tank (408) and circulating water pump (407) between described cooling water intake (406) and coolant outlet (409); The super-high pressure pulse electric current of described anode block (403) and cathode bar (405) is supplied with by controllable silicon controller (402), and described controllable silicon controller (402) is connected in external power supply by transformer (401).

4. a right to use requires the method that the oxonium ion purification plant such as 1 to 3 described any vehicle exhaust PM2.5 particle purifies vehicle exhaust PM2.5 particle, and its feature may further comprise the steps:

The vehicle exhaust that produces in the motor (1) enters in the automobile exhaust pipe (3), the plasma (4014) that plasma generator (4) produces also enters in the automobile exhaust pipe (3) by described aperture, the collision of free radicals and contaminant molecule makes the chemical bond rupture of contaminant molecule in the plasma, electronics and ambient gas molecular collision and produce the extremely strong free atom of oxidability and free radicals isoreactivity material, have an effect with the PM2.5 particle in the vehicle exhaust, thereby effectively remove PM2.5 particle in the vehicle exhaust.