CN109224789A - Self-cleaning plasma waste gas treating device and method - Google Patents
Self-cleaning plasma waste gas treating device and method Download PDFInfo
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- CN109224789A CN109224789A CN201811208820.4A CN201811208820A CN109224789A CN 109224789 A CN109224789 A CN 109224789A CN 201811208820 A CN201811208820 A CN 201811208820A CN 109224789 A CN109224789 A CN 109224789A
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- plasma
- plasma discharge
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- electrode tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Abstract
The present invention relates to exhaust-gas treatment fields, and in particular to a kind of self-cleaning plasma waste gas treating device and method.The device includes cabinet (4), plasma power supply (5), equipment power supply (6), jet chimney (10), steam generator (11), vapour-pressure type physical removal device (13) and plasma discharge (17).The device using when be able to maintain Operation at full power so that exhaust treatment efficiency increases substantially.Method of the invention has many advantages, such as high treating effect, and operating cost is cheap, without secondary pollution, stable, operational administrative is easy, plug and play, and automatic cleaning function improves whole work efficiency, saves many and diverse manual cleaning process.
Description
Technical field
The present invention relates to exhaust-gas treatment fields, and in particular to a kind of self-cleaning plasma waste gas treating device and method.
Background technique
Low temperature plasma is the 4th state of substance after solid-state, liquid, gaseous state, when applied voltage reaches putting for gas
When piezoelectric voltage, gas is breakdown, generates the mixture including electronics, various ions, atom and free radical.In discharge process
Although electron temperature is very high, heavy particle temperature is very low, and low-temperature condition is presented in whole system, so referred to as low temperature plasma.
Low-temperature plasma degradation pollutant is made using the pollutant in these high energy electrons, free radical isoreactivity particle and exhaust gas
With, so that contaminant molecule is decomposed in a very short period of time, and occur it is subsequent it is various reaction to reach degradation of contaminant
Purpose.
Traditional low-temperature plasma waste gas treatment equipment during operation can by exhaust gas dust and organic matter adhere to
In discharge body surface, discharge power is not only influenced, cleaning is also made to have difficulties.But if infrequently cleaning can cause inside
It burns on fire, or even explosion.The above problem makes existing equipment cannot achieve Operation at full power at runtime, and treatment effeciency has
It is reduced.
Summary of the invention
The object of the present invention is to provide a kind of with the risk for avoiding processing equipment internal-combustion on fire or even exploding, keeps
Operation at full power, exhaust treatment efficiency height, high treating effect, operating cost be cheap, without secondary pollution, stable, operation pipe
The self-cleaning plasma waste gas treating device of reason simplicity, plug and play.
It is a further object of the present invention to provide a kind of sides that self-cleaning and plasma exhaust-gas treatment are carried out using above-mentioned apparatus
Method.
The solution adopted by the present invention to solve the technical problem is that:
Self-cleaning plasma waste gas treating device, including cabinet 4, plasma power supply 5, jet chimney 10, steam generator
11, vapour-pressure type physical removal device 13 and plasma discharge 17.
Air inlet 1 and gas outlet 2 are respectively equipped on the cabinet 4.
The inside of cabinet 4 is from air inlet 1 to gas outlet 2 successively arranged for interval homogenizing plate 15, dust cover 16, multiple plasmas
Discharge body 17 and catalysis net 18.
The plasma discharge 17 is electrically connected with plasma power supply 5.
The plasma discharge 17 is multiple level course structures, the electrode tube 171 that each level course is arranged horizontally.
The inside of cabinet 4 is additionally provided with jet chimney 10 and steam generator 11；Outside the side of plasma discharge 17
Equipped with jet chimney 10, the other side is equipped with vapour-pressure type physical removal device 13；The bottom end of the jet chimney 10 is connected to steam generation
Device 11；Jet chimney 10 by multiple laterals be arranged horizontally in plasma discharge 17 adjacent layer electrode tube 171 it
Between, multiple laterals of jet chimney 10 are located in the same vertical plane with the electrode tube 171 of plasma discharge 17；Steam
Each lateral of pipeline 10 is equipped with multiple steam jets.
Vapour-pressure type physical removal device 13 is equipped with multiple holes, and each hole corresponds to one layer of electrode tube of plasma discharge 17
171。
The plasma high-voltage end 7 of the anode access plasma discharge 17 of every layer of electrode tube 171, the cathode of electrode tube 171
Access the plasma low-pressure end 8 of plasma discharge 17；The plasma high-voltage end 7 and plasma low-pressure end of plasma discharge 17
8 are electrically connected with the anode and cathode of plasma power supply 5 respectively.
The top and bottom of plasma discharge 17 are equipped with vapour-pressure type physical removal device support rod 14, vapour-pressure type physical removal
The upper and lower ends of device 13 are slidably connected with vapour-pressure type physical removal device support rod 14.
The material of the vapour-pressure type physical removal device 13 is polytetrafluoroethylene (PTFE).
The lateral of each jet chimney 10 is equipped with 2~6 steam jets；Each branch of jet chimney 10
In pipeline, it is more than the steam towards the electrode tube 171 being disposed below towards the steam jet for the electrode tube 171 being positioned above
Spray head.
4 bottom of cabinet is equipped with multiple sewage collecting tanks, the position of each sewage collecting tank and a plasma discharge
Body 17 is corresponding.
Sewage draining exit 3 is additionally provided on the cabinet 4, sewage draining exit 3 is connected to sewage collecting tank.
The method for carrying out exhaust-gas treatment and self-cleaning using self-cleaning plasma waste gas treating device, comprising the following steps:
A) exhaust-gas treatment:
Exhaust gas enters cabinet 4 by air inlet 1；After the fluid of balanced gas, opening plasma power supply 5 makes plasma discharge
17 are powered, and form plasma electric field in 17 region of plasma discharge.
Exhaust gas is after homogenizing plate 15, dust cover 16, and into plasma electric field, the partial organic substances in exhaust gas are decomposed；
The dirt that cannot be decomposed in exhaust gas is attached on the tube wall of every layer of electrode tube 171 of each plasma discharge 17.
The organic matter not being decomposed in exhaust gas is aoxidized by catalysis net 18.
Treated, and exhaust gas is discharged by gas outlet 2.
B) automatic cleaning:
Steam generator 11 is opened, the steam that steam generator 11 generates is sprayed by each lateral of jet chimney 10
It is spread across on the tube wall of electrode tube 171 of plasma discharge 17, to cannot be divided in the exhaust gas adhered on the tube wall of electrode tube 171
The dirt of solution carries out high temperature pyrolysis.
Vapour-pressure type physical removal device 13 slides wiping along the tube wall of electrode tube 171, carries out physical removal.
After automatic cleaning, dirt and a small amount of sewage are discharged by sewage draining exit 3 again after being collected by sewage collecting tank.
The plasma power supply 5 passes through plasma high-voltage end 7 and plasma low-pressure end 8 to each of plasma discharge 17
The cathode and anodal closure of 171 pipe of electrode tube form plasma electric field.
The beneficial effects of the present invention are:
1) self-cleaning plasma waste gas treating device of the invention carries out discharge body surface using high-temperature vapor automatic
Cleaning work avoids the risk that internal-combustion is on fire or even explodes；
2) self-cleaning plasma waste gas treating device of the invention, when use, are able to maintain Operation at full power, so that exhaust gas
Treatment effeciency increases substantially；
3) lower temperature plasma technology is applied to foul gas by plasma exhaust-gas treatment of the invention and method for self-cleaning
It administers, there is high treating effect, operating cost is cheap, without secondary pollution, stable, operational administrative is easy, plug and play etc.
Advantage.
4) plasma exhaust-gas treatment of the invention and method for self-cleaning, increase on conventional plasma exhaust gas treatment technology
Built in automatic cleaning function, especially automatic cleaning function, combined with plasma main body, it is not only easy to clean, it is not tying also
Structure level, which is formed, to be hindered, and is improved whole work efficiency, is saved many and diverse manual cleaning process.
Detailed description of the invention
Fig. 1 is the cabinet top view of self-cleaning plasma waste gas treating device of the invention；
Fig. 2 is the component connection schematic diagram of the Self-cleaning system of self-cleaning plasma waste gas treating device of the invention；
Fig. 3 be the homogenizing plate of self-cleaning plasma waste gas treating device of the invention, dust cover, plasma discharge and
Catalysis net is in the intracorporal arrangement schematic diagram of self-cleaning plasma master；
Fig. 4 is plasma discharge cathode and the anode arrangement signal of self-cleaning plasma waste gas treating device of the invention
Figure.
Appended drawing reference therein are as follows:
1 air inlet, 2 gas outlet
3 sewage draining exit, 4 cabinet
5 plasma power supply, 6 equipment power supply
7 plasma high-voltage end, 8 plasma low-pressure end
10 jet chimney of 9 power supplys and equipment ground protective device
11 steam generator, 13 vapour-pressure type physical removal device
14 vapour-pressure type physical removal device support rod, 15 homogenizing plate
16 dust cover, 17 plasma discharge
18 catalysis net, 171 electrode tube
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Self-cleaning plasma waste gas treating device of the invention, including cabinet 4, plasma power supply 5, equipment power supply 6, power supply
And equipment ground protective device 9, jet chimney 10, steam generator 11, internal sewage collector 12, vapour-pressure type physical removal device
13, vapour-pressure type physical removal device support rod 14 and plasma discharge 17.
As shown in Figure 1, the front and rear ends of the cabinet 4 are respectively equipped with air inlet 1 and gas outlet 2.
As shown in figure 3, the inside of cabinet 4 from air inlet 1 to gas outlet 2 successively arranged for interval homogenizing plate 15, dust cover 16,
Multiple plasma discharges 17 and catalysis net 18.
The plasma discharge 17 is multiple level course structures, the electrode tube 171 that each level course is arranged horizontally.Into
One step is refering to Fig. 4, the plasma high-voltage end 7 of the anode access plasma discharge 17 of electrode tube 171, the cathode of electrode tube 171
Access the plasma low-pressure end 8 of plasma discharge 17.Preferably, the tube wall material of the electrode tube 171 is glass.
The plasma discharge 17 is electrically connected with plasma power supply 5；Connection type is by plasma high-voltage end 7 and to wait
Ion low-pressure end 8 is electrically connected with the anode and cathode of plasma power supply 5 respectively.
As shown in Fig. 2, the inside of cabinet 4 is additionally provided with jet chimney 10, steam generator 11 and vapour-pressure type physical removal
Device 13.Jet chimney 10 is equipped with outside the side of the plasma discharge 17, the other side is equipped with vapour-pressure type physical removal device 13.
The bottom end of the jet chimney 10 is connected to steam generator 11.Jet chimney 10 by multiple laterals be arranged horizontally in etc. from
Between the adjacent electrode tube 171 of electron discharge body 17, multiple laterals of jet chimney 10 and the electricity of plasma discharge 17
Pole pipe 171 is located in the same vertical plane.Each lateral of jet chimney 10 is equipped with multiple steam jets.
Preferably, the lateral of each jet chimney 10 is equipped with 2~6 steam jets.Preferably, jet chimney 10
Each lateral in, be more than towards the steam jet of electrode tube 171 being positioned above towards the electrode being disposed below
The steam jet of pipe 171.
The top and bottom of plasma discharge 17 are equipped with vapour-pressure type physical removal device support rod 14, vapour-pressure type physical removal
The upper and lower ends of device 13 are slidably connected with vapour-pressure type physical removal device support rod 14, to make vapour-pressure type physical removal device 13
It is installed on plasma discharge 17.Preferably, vapour-pressure type physical removal device 13 is equipped with multiple holes, and each hole corresponds to plasma
One layer of electrode tube 171 of discharge body 17, the aperture in each hole are matched with the caliber of electrode tube 171；When vapour-pressure type physics
When remover 13 is slided along vapour-pressure type physical removal device support rod 14, it can be achieved that along the axial to electrode tube 171 of electrode tube 171
Tube wall wiping.
Preferably, the material of the vapour-pressure type physical removal device 13 is polytetrafluoroethylene (PTFE).
The bottom of the cabinet 4 is equipped with multiple sewage collecting tanks, and the position of each sewage collecting tank is put with each plasma
Electric body 17 is corresponding.Sewage draining exit 3 is additionally provided on cabinet 4, sewage draining exit 3 is connected to sewage collecting tank.
Plasma power supply 5, steam generator 11 and vapour-pressure type physical removal device 13 are connect with equipment power supply 6, plasma
Power supply 5 is also connect with power supply and equipment ground protective device 9.
The method for carrying out plasma exhaust-gas treatment and self-cleaning using self-cleaning plasma waste gas treating device of the invention,
The following steps are included:
A) exhaust-gas treatment:
Equipment power supply 6 is opened, exhaust gas enters cabinet 4 by air inlet 1.Behind fluid two minutes of balanced gas, open etc. from
Sub- power supply 5, plasma power supply 5 are powered to plasma discharge 17, form plasma electric field in 17 region of plasma discharge.
Exhaust gas by homogenizing plate 15 distribution, stablize exhaust gas gas flow rate and homogeneous, prevent exhaust gas local concentration excessive or
Exhaust gas forms impact beam；It is dusted using dust cover 16.Exhaust gas after dedusting enters in 17 region shape of plasma discharge
At plasma electric field.When freely passing through inside plasma electric field areas, exhaust gas is provoked into plasma state, while in exhaust gas
The oxygen contained is ionized to ozone and oxygen atom, and in this case, the partial organic substances in exhaust gas are broken down into rapidly dioxy
Change the pollution-free ingredients such as carbon, water and nitrogen.Meanwhile the dirt that cannot be decomposed in exhaust gas is attached to each plasma discharge 17
Every layer of electrode tube 171 tube wall on.
It is smelly under the action of catalysis net 18 by catalysis net 18 after organic matter and the ozone mixing not being decomposed in exhaust gas
Oxygen automatic classifying is oxygen and antozone, and antozone can carry out last oxygen to the remaining organic matter not being decomposed in exhaust gas
Change.Treated, and exhaust gas is discharged by gas outlet 2.
When equipment operation is 12 hours full, closes plasma power supply 5 and stop working.
B) automatic cleaning:
Steam generator 11 is opened, the steam that steam generator 11 generates is sprayed by each lateral of jet chimney 10
It is spread across on the tube wall of electrode tube 171 of plasma discharge 17, to cannot be divided in the exhaust gas adhered on the tube wall of electrode tube 171
The dirt of solution carries out high temperature pyrolysis, so that it is activated and is moistened and loosens.This step can prevent dirt from burning in plasma electric field
Even explode.
Then vapour-pressure type physical removal device 13 is slided along vapour-pressure type physical removal device support rod 14, thus along electrode tube 171
Tube wall slide wiping, carry out physical removal.The material of vapour-pressure type physical removal device 13 be polytetrafluoroethylene (PTFE), have it is anticorrosive and
The extraordinary feature of insulation performance.
After automatic cleaning, dirt and a small amount of sewage are discharged by sewage draining exit 3 again after being collected by sewage collecting tank.
The power supply and equipment ground protective device 9 guarantee to get an electric shock in direct contact.
The every operation of equipment 168 hours, automatic cleaning is primary.
It is solidifying according to Exhaust gas species and particulate matter and gas when using self-cleaning plasma waste gas treating device of the invention
Gum concentration adjusts cleaning frequency and time.When the particulate matter and high gas-gel concentration in exhaust gas, such as spraying exhaust gas,
Coking exhaust gas, smoke exhaust, pitch exhaust gas, food and drink exhaust gas or high VOC exhaust gas, the frequency for needing to clean can be improved according to circumstances；
When the particulate matter and low gas-gel concentration in exhaust gas, such as when denitrating flue gas, sewage treatment exhaust gas or deodorization, need clear
The frequency washed can be reduced according to circumstances.
Claims (9)
1. self-cleaning plasma waste gas treating device, it is characterised in that: including cabinet (4), plasma power supply (5), jet chimney
(10), steam generator (11), vapour-pressure type physical removal device (13) and plasma discharge (17)；
Air inlet (1) and gas outlet (2) are respectively equipped on the cabinet (4)；
The inside of cabinet (4) is from air inlet (1) to gas outlet (2) successively arranged for interval homogenizing plate (15), dust cover (16), multiple
Plasma discharge (17) and catalysis net (18)；
The plasma discharge (17) is electrically connected with plasma power supply (5)；
The plasma discharge (17) is multiple level course structures, the electrode tube (171) that each level course is arranged horizontally；
The inside of cabinet (4) is additionally provided with jet chimney (10) and steam generator (11)；The side of plasma discharge (17)
Outside is equipped with jet chimney (10), and the other side is equipped with vapour-pressure type physical removal device (13)；The bottom end of the jet chimney (10) connects
Logical steam generator (11)；Jet chimney (10) is arranged horizontally in the adjacent of plasma discharge (17) by multiple laterals
Between the electrode tube (171) of layer, multiple laterals of jet chimney (10) and the electrode tube (171) of plasma discharge (17)
It is located in the same vertical plane；Each lateral of jet chimney (10) is equipped with multiple steam jets；
Vapour-pressure type physical removal device (13) is equipped with multiple holes, and each hole corresponds to one layer of electrode tube of plasma discharge (17)
(171)。
2. self-cleaning plasma waste gas treating device according to claim 1, it is characterised in that: every layer of electrode tube (171)
Anode access plasma discharge (17) plasma high-voltage end (7), the cathode of electrode tube (171) accesses plasma discharge
(17) plasma low-pressure end (8)；The plasma high-voltage end (7) and plasma low-pressure end (8) of plasma discharge (17) are respectively
It is electrically connected with the anode and cathode of plasma power supply (5).
3. self-cleaning plasma waste gas treating device according to claim 1, it is characterised in that: plasma discharge (17)
Top and bottom be equipped with vapour-pressure type physical removal device support rod (14), the upper and lower ends and gas of vapour-pressure type physical removal device (13)
Pressure type physical removal device support rod (14) is slidably connected.
4. self-cleaning plasma waste gas treating device according to claim 1, it is characterised in that: the vapour-pressure type physics is clear
Except the material of device (13) is polytetrafluoroethylene (PTFE).
5. self-cleaning plasma waste gas treating device according to claim 1, it is characterised in that: each jet chimney
(10) lateral is equipped with 2~6 steam jets；In each lateral of jet chimney (10), towards disposed thereon
The steam jet of the electrode tube (171) of side is more than the steam jet towards the electrode tube (171) being disposed below.
6. self-cleaning plasma waste gas treating device according to claim 1, it is characterised in that: cabinet (4) bottom
Equipped with multiple sewage collecting tanks, the position of each sewage collecting tank is corresponding with one plasma discharge (17).
7. self-cleaning plasma waste gas treating device according to claim 6, it is characterised in that: on the cabinet (4) also
Equipped with sewage draining exit (3), sewage draining exit (3) is connected to sewage collecting tank.
8. using as the self-cleaning plasma waste gas treating device of one of claim 1~7 carries out exhaust-gas treatment and self-cleaning
Method, it is characterised in that: the following steps are included:
A) exhaust-gas treatment:
Exhaust gas enters cabinet (4) by air inlet (1)；After the fluid of balanced gas, opening plasma power supply (5) makes plasma discharge
Body (17) is powered, and forms plasma electric field in plasma discharge (17) region；
Exhaust gas is after homogenizing plate (15), dust cover (16), and into plasma electric field, the partial organic substances in exhaust gas are decomposed；
The dirt that cannot be decomposed in exhaust gas is attached on the tube wall of every layer of electrode tube (171) of each plasma discharge (17)；
The organic matter not being decomposed in exhaust gas is aoxidized by catalysis net (18)；
Treated, and exhaust gas is discharged by gas outlet (2)；
B) automatic cleaning:
It opens steam generator (11), the steam that steam generator (11) generates passes through each lateral of jet chimney (10)
It is sprayed on the tube wall of electrode tube (171) of plasma discharge (17), in the exhaust gas adhered on the tube wall of electrode tube (171)
The dirt that cannot be decomposed carries out high temperature pyrolysis；
Vapour-pressure type physical removal device (13) slides wiping along the tube wall of electrode tube (171), carries out physical removal；
After automatic cleaning, dirt and a small amount of sewage are discharged by sewage draining exit (3) again after being collected by sewage collecting tank.
9. the method for exhaust-gas treatment according to claim 8 and self-cleaning, it is characterised in that:
The plasma power supply (5) passes through plasma high-voltage end (7) and plasma low-pressure end (8) to plasma discharge (17)
The cathode and anodal closure of each electrode tube (171) pipe form plasma electric field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208820.4A CN109224789A (en) | 2018-10-17 | 2018-10-17 | Self-cleaning plasma waste gas treating device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208820.4A CN109224789A (en) | 2018-10-17 | 2018-10-17 | Self-cleaning plasma waste gas treating device and method |
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| Publication Number | Publication Date |
|---|---|
| CN109224789A true CN109224789A (en) | 2019-01-18 |
Family
ID=65053145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811208820.4A Pending CN109224789A (en) | 2018-10-17 | 2018-10-17 | Self-cleaning plasma waste gas treating device and method |
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