CN103736591A - Low-temperature plasma PM2.5 purification treatment device and treatment method thereof - Google Patents
Low-temperature plasma PM2.5 purification treatment device and treatment method thereof Download PDFInfo
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- CN103736591A CN103736591A CN201410015762.9A CN201410015762A CN103736591A CN 103736591 A CN103736591 A CN 103736591A CN 201410015762 A CN201410015762 A CN 201410015762A CN 103736591 A CN103736591 A CN 103736591A
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Abstract
The invention relates to a low-temperature plasma PM2.5 purification treatment device and a treatment method thereof, wherein the device comprises a gas chamber shell (6), a water tank (18) is arranged below the gas chamber shell (6), an air inlet (2) is arranged on the front side of the gas chamber shell (6), a low-temperature plasma reactor (5) is arranged in the gas chamber shell (6), a gas antechamber (22) is arranged on the front side of the low-temperature plasma reactor (5), a purification gas chamber (11) is arranged on the rear side of the low-temperature plasma reactor (5), a fan (10) is arranged in the purification gas chamber (11), the outlet end of the fan (10) is connected with a fan outlet extension tube (15), and the fan outlet extension tube (15) extends below a pore plate (16) of the water tank (18). The invention relates to a low-temperature plasma PM2.5 purification treatment device and a treatment method thereof, which have the advantages of good treatment effect, safety, reliability, low operation cost, convenience in use and wide market demand.
Description
Technical field
The present invention relates to a kind of indoor gas treating apparatus and processing method thereof, specifically relate to a kind of fine grained for existing in room air---plasma purification treating apparatus and the processing method thereof of PM2.5.
Background technology
In urban air, there is the waste gas of vehicle exhaust, airborne dust, all kinds of discharged in burning in particle source.Add that the particles such as airborne sulfuric acid, nitric acid, organic carbon hydrogen compound can make atmospheric visibility worsen, the concrete form of performance is that imperceptible grit, soot, salt grain etc. swim aloft equably.The diameter of particle is less, can enter respiratory tract position just darker, just larger to harm.The particle of particle diameter below 3.5 microns, can deposit in suction people's bronchus and alveolar, causes or increase the weight of the disease of respiratory system.And wherein PM2.5(can enter lung particle), be rich in a large amount of poisonous and harmful substances and the time of staying in atmosphere is long, fed distance is far away, thereby larger on the impact of health and atmosphere quality, after being inhaled into human body, can enter bronchus, disturb the gas exchange of lung, cause the disease that comprises the aspects such as asthma, bronchitis and cardiovascular disease.These particles can also enter blood by bronchus and alveolar, and pernicious gas wherein, heavy metal etc. are dissolved in blood, larger to the injury of health.The atmosphere muddiness of relative humidity between 80-90% time very easily forms haze, and its thickness can reach 1-3 kilometer left and right.Haze distribution of particles is even, is the aerial showy particle that is invisible to the naked eye, and average diameter is greatly about 1-2 micron left and right, and its scattering wavelength is longer, is yellow or orange grey.Airborne particle particularly microparticle (PM2.5) itself is pollutant, can directly enter human body, simultaneously, it is again the carrier of the noxious materials such as heavy metal, polycyclic aromatic hydrocarbon, injury to human body is greatly strengthened, haze has serious harm to human body after the respiratory tract that sucks people, seriously can make people fatal.
Particulate in air composition is very complicated, and variation is very large in accordance with the time and the place.Its composition is broadly divided into three classes: organic, water-soluble and water-insoluble.By weight proportion, organic component content can be up to 50%, and wherein major part is benzene-insoluble baroque Organic Compounds, and the organic matter that conventionally dissolves in benzene only accounts for below 10%, comprises aliphatic hydrocarbon, aromatic hydrocarbons, polycyclic aromatic hydrocarbon and alcohol, ketone, acid, fat etc.Polycyclic aromatic hydrocarbon (as benzo (a) pyrene etc.) wherein has stronger carcinogenesis to human body.Water-soluble composition mainly contains sulfate, nitrate, chloride etc., and wherein sulphates content is in 10% left and right.Water-fast particle is mainly comprised of the oxide of the elements such as silicon, aluminium, iron, calcium, magnesium, sodium, potassium.Dioxide-containing silica wherein accounts for 10～40%, also has in addition the metallic element of lot of trace and trace, wherein multiple harmful, as mercury, lead, cadmium etc.
Lower temperature plasma technology advantage aspect gaseous contaminant improvement is remarkable.Its principle is that electronics obtains energy from electric field under electric field action, produces high energy electron, by exciting or ionizing, energy is transferred in molecule or atom and is gone, and the molecule or the atom that obtain energy are excited, and now part molecule is ionized to as active group; Between these active groups and molecule or atom, active group and active group, mutually after collision, generate stable product, simultaneously, part high energy electron is become anion by halogen with stronger materials captures of electron affinity such as oxygen, this class anion has good chemism, plays leading role in chemical reaction.When electronics average energy exceedes target improvement thing molecular chemistry bond energy, administer the molecular scission of thing, reach the object of eliminating gaseous contaminant.
summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of low temperature plasma PM2.5 purifying processing device and processing method thereof are provided, it is mainly for the fine grained existing in room air, its compact conformation, floor space are little, safe and reliable, easy to use, treatment effect is good, has good application prospect.
The object of the present invention is achieved like this: a kind of low temperature plasma PM2.5 purifying processing device, it comprises air chamber shell, described air chamber shell below is provided with water tank, in described water tank, be horizontally disposed with abacus, described orifice plate is arranged in below the water surface curve of water tank, described air chamber shell front side is provided with air inlet, in described air chamber shell, be provided with reaction of low temperature plasma device, described reaction of low temperature plasma device front side is gas cup, gas cup is connected with the air inlet of reaction of low temperature plasma device, described reaction of low temperature plasma device rear side is for purifying air chamber, described reaction of low temperature plasma device is connected with the plasma generator being arranged at outside air chamber shell by plasma transmission coupling part, on described plasma generator, be connected with plasma electrical source, the indoor blower fan that is provided with of described purified gas, the air inlet of described blower fan is connected with purification air chamber, described fan outlet end is connected with fan outlet extension spray lance, it is interior to orifice plate that described fan outlet extension spray lance stretches into water tank, described water tank rear side is provided with air-out road junction and discharging valve, described air-out road junction is positioned at orifice plate top, described discharging valve is positioned at orifice plate below.
In described gas cup, be provided with water injection pipe, described water injection pipe upper end passes air chamber shell, and described water injection pipe upper end is provided with seal cover, and it is interior to orifice plate that water tank is stretched in described water injection pipe lower end.
Between the upper and lower both sides of described reaction of low temperature plasma device and air chamber shell, be provided with sealed separation bar.
On described orifice plate, be evenly provided with multiple through holes.
Described air-out road junction comprises air-out road junction shell, and described air-out road junction shell is connected with water tank by securing member, and described air-out road junction shell rear side offers air outlet, in the shell of described air-out road junction, is provided with inserts.
A kind of processing method of low temperature plasma PM2.5 purifying processing device:
Need indoor gas to be processed to enter gas cup by air inlet, gas cup is connected with the air inlet of reaction of low temperature plasma device, the gas that need process enters purified gas chamber after being processed in reaction of low temperature plasma device, the air inlet of blower fan is connected with purification air chamber, after blower fan supercharging, purifying pressed gas introduces in the water body in water tank by fan outlet extension spray lance, water surface curve in water tank is gas-vapor mix body below, water surface curve in water tank is the Purge gas of overflowing above, and the Purge gas of effusion is discharged through air-out road junction under pressure-driven.
Compared with prior art, the present invention has following beneficial effect:
A kind of low temperature plasma PM2.5 purifying processing device of the present invention and processing method thereof, it can continuous operation, mainly that the gas that indoor gas is particularly contained to finely ground particles PM2.5 and poisonous and harmful substance is processed, its treatment effect is good, safe and reliable, operating cost is low, easy to use, there is the wide market demand.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of low temperature plasma PM2.5 of the present invention purifying processing device.
Fig. 2 is the structural representation at air-out road junction in Fig. 1.
Wherein:
Need indoor gas 1 to be processed
Reaction of low temperature plasma device 5
Plasma electrical source 7
Plasma transmits coupling part 9
Blower fan 10
Purify air chamber 11
Purify output gas 12
Air-out road junction 13
Discharging valve 14
Fan outlet extension spray lance 15
Orifice plate 16
Gas-vapor mix body 17
The Purge gas 20 of overflowing
Pressed gas flows to 21
Sealed separation bar 23
Securing member 24
Inserts 25
Air-out road junction shell 26
The specific embodiment
Referring to Fig. 1, Fig. 2, a kind of low temperature plasma PM2.5 of the present invention purifying processing device, it comprises air chamber shell 6, described air chamber shell 6 belows are provided with water tank 18, in described water tank 18, be horizontally disposed with abacus 16, the water surface curve that described orifice plate 16 is arranged in water tank is below 19, described air chamber shell 6 front sides are provided with air inlet 2, in described air chamber shell 6, be provided with reaction of low temperature plasma device 5, described reaction of low temperature plasma device 5 front sides are gas cup 22, gas cup 22 is connected with the air inlet of reaction of low temperature plasma device 5, described reaction of low temperature plasma device 5 rear sides are for purifying air chamber 11, described reaction of low temperature plasma device 5 is connected with the plasma generator 8 being arranged at outside air chamber shell 6 by plasma transmission coupling part 9, on described plasma generator 8, be connected with plasma electrical source 7, in described purification air chamber 11, be provided with blower fan 10, the air inlet of described blower fan 10 is connected with purification air chamber 11, described blower fan 10 ports of export are connected with fan outlet extension spray lance 15, described fan outlet extension spray lance 15 stretches in water tank 18 to orifice plate below 16, in described gas cup 22, be provided with water injection pipe 4, described water injection pipe 4 upper ends pass air chamber shell 6, described water injection pipe 4 upper ends are provided with seal cover 3, described water injection pipe 4 lower ends are stretched in water tank 18 to orifice plate below 16, described water tank 18 rear sides are provided with air-out road junction 13 and discharging valve 14, described air-out road junction 13 is positioned at orifice plate 16 tops, described discharging valve 14 is positioned at orifice plate 16 belows.
Described reaction of low temperature plasma device is provided with sealed separation bar 23 between both sides and air chamber shell 6 Shang Xia 5, so that by gas cup 22 with purify air chamber 11 and separate, air chamber shell 6, simultaneously also as cabinet, completes the fixed support function of each parts in case.
In order to guarantee the uniformity of water tank 18 interior gas-vapor mix, on described orifice plate 16, be evenly provided with multiple through holes.
Described air-out road junction 13 comprises air-out road junction shell 26, described air-out road junction shell 26 is connected with water tank 18 by securing member 24, described air-out road junction shell 26 rear sides offer air outlet 27, in described air-out road junction shell 26, be provided with inserts 25, this inserts 25 can be by the condensation vapor water outlet of taking out of with stream pressure in discharge gas after purifying, and can further the residue peculiar smell that may exist in output gas be sponged, condensate water will be back in water tank 18, and the emission gases 12 after purification transfers out by air outlet 27.
By water inlet pipe 4, can regularly supply the work water in water tank 18, after work a period of time, the water body that contains sedimentary molten water thing is discharged by discharging valve 14, by collecting, sends into the lower mouth of a river enter domestic sewage processing system and process after the instrument such as basin is collected.
The processing method of described low temperature plasma PM2.5 purifying processing device is as follows: need indoor gas 1 to be processed to enter gas cup 22 by air inlet 2, gas cup 22 is connected with the air inlet of reaction of low temperature plasma device 5, the gas that need process enters purified gas chamber 11 after being processed in reaction of low temperature plasma device 5, the air inlet (suction side) of blower fan 10 is connected with purification air chamber 11, after blower fan 10 superchargings, purifying pressed gas introduces in the water body in water tank 18 by fan outlet extension spray lance 15, pressed gas flows to 21 as shown in Figure 1, water surface curve in water tank is gas-vapor mix body 17 below 19, water surface curve in water tank more than 19 is the Purge gas 20 of overflowing, the Purge gas 20 of overflowing is discharged through air-out road junction 13 under pressure-driven, above-mentioned flow process has completed gas purification process.
The mechanism of beneficial effect of the present invention is: utilize low temperature plasma to remove the outstanding advantage of pollutant, under the effect of extra electric field, by the gas that contains deleterious particle thing under the guiding of blower pressure, discharge generation in plasma reactor take in a large number can electronics particulate pollutant molecule in bombarding gas, it is excited and ionization occurs and dissociate, then the physics, the chemical reaction that have just caused series of complex, course of reaction is as follows:
(1) electric field excitation electron → high energy electron
(2) high energy electron excites molecule (or atom) → atom, group, free group → active group
(3) active group+molecule (or atom) → generation resistate+heat
(4) active group+active group → generation resistate+heat
Under low temperature plasma environment, in gas, complicated macromolecule contaminant changes simple little molecule safe material into, thereby makes the pollutant removal of being degraded.On the device of specific implementation, control reaction condition make the electronics average energy that ionizes rear generation more than 10ev, can realize be generally difficult to realize or the very slow chemical reaction process of speed become very quick.
Claims (6)
1. a low temperature plasma PM2.5 purifying processing device, it is characterized in that: it comprises air chamber shell (6), described air chamber shell (6) below is provided with water tank (18), in described water tank (18), be horizontally disposed with abacus (16), described orifice plate (16) is arranged in below the water surface curve (19) of water tank, described air chamber shell (6) front side is provided with air inlet (2), in described air chamber shell (6), be provided with reaction of low temperature plasma device (5), described reaction of low temperature plasma device (5) front side is gas cup (22), gas cup (22) is connected with the air inlet of reaction of low temperature plasma device (5), described reaction of low temperature plasma device (5) rear side is for purifying air chamber (11), described reaction of low temperature plasma device (5) is connected by plasma transmission coupling part (9) plasma generator (8) outer with being arranged at air chamber shell (6), on described plasma generator (8), be connected with plasma electrical source (7), in described purification air chamber (11), be provided with blower fan (10), the air inlet of described blower fan (10) is connected with purification air chamber (11), described blower fan (10) port of export is connected with fan outlet extension spray lance (15), it is interior to orifice plate (16) that described fan outlet extension spray lance (15) stretches into water tank (18), described water tank (18) rear side is provided with air-out road junction (13) and discharging valve (14), described air-out road junction (13) is positioned at orifice plate (16) top, described discharging valve (14) is positioned at orifice plate (16) below.
2. a kind of low temperature plasma PM2.5 purifying processing device according to claim 1, it is characterized in that: in described gas cup (22), be provided with water injection pipe (4), described water injection pipe (4) upper end passes air chamber shell (6), described water injection pipe (4) upper end is provided with seal cover (3), and it is interior to orifice plate (16) that water tank (18) is stretched in described water injection pipe (4) lower end.
3. a kind of low temperature plasma PM2.5 purifying processing device according to claim 1 and 2, is characterized in that: between the upper and lower both sides of described reaction of low temperature plasma device (5) and air chamber shell (6), be provided with sealed separation bar (23).
4. a kind of low temperature plasma PM2.5 purifying processing device according to claim 1 and 2, is characterized in that: described orifice plate is evenly provided with multiple through holes on (16).
5. a kind of low temperature plasma PM2.5 purifying processing device according to claim 1 and 2, it is characterized in that: described air-out road junction (13) comprises air-out road junction shell (26), described air-out road junction shell (26) is connected with water tank (18) by securing member (24), described air-out road junction shell (26) rear side offers air outlet (27), is provided with inserts (25) in described air-out road junction shell (26).
6. the processing method of a low temperature plasma PM2.5 purifying processing device claimed in claim 1, it is characterized in that: need indoor gas to be processed (1) to enter gas cup (22) by air inlet (2), gas cup (22) is connected with the air inlet of reaction of low temperature plasma device (5), the gas that need process enters purified gas chamber (11) after being processed in reaction of low temperature plasma device (5), the air inlet of blower fan (10) is connected with purification air chamber (11), after blower fan (10) supercharging, purifying pressed gas introduces in the water body in water tank (18) by fan outlet extension spray lance (15), below water surface curve (19) in water tank, be gas-vapor mix body (17), it more than the water surface curve (19) in water tank is the Purge gas (20) of overflowing, the Purge gas (20) of overflowing is discharged through air-out road junction (13) under pressure-driven.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889103A (en) * | 2018-07-24 | 2018-11-27 | 南京工业大学 | Equipment for deodorizing compost tail gas |
| CN108889104A (en) * | 2018-07-24 | 2018-11-27 | 南京工业大学 | Method for deodorizing compost tail gas |
| CN113941203A (en) * | 2021-10-09 | 2022-01-18 | 大连理工大学 | Air purification device for treating pollutants by activating water based on plasma generation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108889103A (en) * | 2018-07-24 | 2018-11-27 | 南京工业大学 | Equipment for deodorizing compost tail gas |
| CN108889104A (en) * | 2018-07-24 | 2018-11-27 | 南京工业大学 | Method for deodorizing compost tail gas |
| CN113941203A (en) * | 2021-10-09 | 2022-01-18 | 大连理工大学 | Air purification device for treating pollutants by activating water based on plasma generation |
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