CN108325359A - A kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device - Google Patents
A kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device Download PDFInfo
- Publication number
- CN108325359A CN108325359A CN201710409665.1A CN201710409665A CN108325359A CN 108325359 A CN108325359 A CN 108325359A CN 201710409665 A CN201710409665 A CN 201710409665A CN 108325359 A CN108325359 A CN 108325359A
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- China
- Prior art keywords
- low
- temperature plasma
- cleaning
- plasma generator
- waste gas
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Classifications
-
- 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
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- 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 a kind of methods of the online coke cleaning of low-temperature plasma waste gas treatment device, include the following steps：(1) discharging tray power supply is closed, exhaust gas import and export valve is closed, ensures the leakproofness in reaction of low temperature plasma area；(2) ultrasonic oscillator is laid in the low temperature plasma generation area of emission-control equipment；(3) cleaning solution is filled into low-temperature plasma generator, carry out ultrasonic cleaning, the high-field electrode wiring of wherein low-temperature plasma generator is laid in plasma generator one end, junction between low-temperature plasma generator high-field electrode and null electrode terminals and generator is secondary seal, and seal form is tandem double seals.The present invention solves the problems, such as low-temperature plasma generator electrode coking pollution, and coke cleaning speed is fast.
Description
Technical field
The present invention relates to a kind of methods of the online coke cleaning of low-temperature plasma waste gas treatment device.
Background technology
Low temperature plasma is widely used to industrial VOCs improvement and dedusting, the desulfurization of flue gas, with low energy consumption, adapts to
The advantages that property is strong, processing speed is fast.Since there are dust, aerosol, H in industrial waste gas2The components such as S and low temperature plasma
Reacting the macromolecule polyalcohol of generation between waste gas component in discharge process causes cold plasma discharge position to easy to produce knot
Coke, when handling high-concentration organic waste gas, low temperature plasma coking phenomenon is even more serious.It is wrapped in the coking at electric discharge position not
The efficiency for only reducing Low Temperature Plasma Treating exhaust gas, increases energy consumption, reduces service life, while the decoking work repeated also adds
Operating burden is weighed.
The present invention targetedly solves electrode coking pollution problem in low temperature plasma generating means.
Invention content
The present invention can realize the online coke cleaning of low temperature plasma generating means by ultrasonic cleaning technique in situ, solve
The problem of low-temperature plasma generator electrode coking is polluted.
To solve the above problems, the present invention provides a kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device,
Include the following steps：
(1) close discharge of plasma in low temperature disk power supply, close gas inlet valve and outlet valve, ensure low temperature etc. from
The leakproofness of daughter reaction zone；
(2) ultrasonic oscillator is laid in the low temperature plasma generation area of emission-control equipment；
(3) cleaning solution is filled into low-temperature plasma generator, carries out ultrasonic cleaning,
Wherein, the high-field electrode wiring of low-temperature plasma generator is laid in plasma generator one end, low temperature etc.
Junction between plasma generator high-field electrode and null electrode terminals and generator is secondary seal, and seal form is string
Connection formula double seals.
Preferably, the distance of the installation site distance low-temperature plasma generator of the ultrasonic oscillator is 3-100cm.
Preferably, the general power of the ultrasonic oscillator is 0.1-10kw/m2。
Preferably, in step (3), when filling cleaning solution into low-temperature plasma generator, plasma generator high pressure
End is more than the liquid level of cleaning solution, and null electrode is immersed in cleaning solution.
Preferably, cleaning solution described in step (3) is any one in water or alkalescent cleaning solution.
Beneficial effects of the present invention：
The present invention by laying ultrasonic oscillator in low-temperature plasma generator, meanwhile, make low temperature plasma
The high-field electrode wiring of device is laid in plasma generator one end, and low-temperature plasma generator high-field electrode and null electrode
Junction between terminals and generator is secondary seal, and seal form is tandem double seals, passes through above-mentioned technology
Means targetedly solve electrode coking pollution problem in low temperature plasma generating means.
Description of the drawings
Fig. 1 is the schematic device that the method for the invention uses.
Specific implementation mode
The present invention will be further described below by way of examples, but protection scope of the present invention be not limited only to it is following
Embodiment.
Embodiment 1：
The foul waste gas that certain sewage in ethylene plant collecting pit generates, major impurity include benzene, toluene, styrene etc., and total hydrocarbon is dense
Spend 1500mg/m3.Low Temperature Plasma Treating exhaust gas duration 100 hours, Low-Temperature Plasma Discharge coking product is apparent.
Prepare before being cleaned by ultrasonic：As shown in Figure 1, before being cleaned by ultrasonic, discharge of plasma in low temperature disk power supply is closed, is closed useless
Gas air intake valve and outlet valve, guarantee reaction of low temperature plasma area leakproofness, are filled to water level and there are not overdischarge disk reaction zone,
But it does not contact at high-voltage electricity extremely sealing.
Supersonic cleaning machine operating condition is arranged：30 DEG C of water temperature is cleaned by ultrasonic power 1500w.
Coke cleaning cleaning solution is prepared：Coke cleaning cleaning solution stoste (alkaline cleaning fluid) and clear water volume ratio 1:20 carry out preparation cleaning
Liquid.
It is cleaned by ultrasonic operation：It is cleaned by ultrasonic duration 5min, sees that part coking product falls off, is cleaned by ultrasonic duration 15min,
Coking product falls off completely.
Embodiment 2：
The foul waste gas that certain chemical engineering sewage Treatment stations regulating reservoir generates, major impurity include benzene, toluene, hexamethylene etc., always
Hydrocarbon concentration 500mg/m3.Low Temperature Plasma Treating exhaust gas duration 100 hours, Low-Temperature Plasma Discharge coking product is more real
It is few to apply example 1.
Night is cleaned according to preparation before being cleaned by ultrasonic, the setting of supersonic cleaning machine operating condition and coke cleaning is completed described in embodiment 1
It prepares.
It is cleaned by ultrasonic operation：It is cleaned by ultrasonic duration 5min, coking product falls off completely.
Claims (5)
1. a kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device, includes the following steps：
(1) discharge of plasma in low temperature disk power supply is closed, gas inlet valve and outlet valve are closed, ensures low temperature plasma
The leakproofness of reaction zone；
(2) ultrasonic oscillator is laid in the low temperature plasma generation area of emission-control equipment；
(3) cleaning solution is filled into low-temperature plasma generator, carries out ultrasonic cleaning,
It is characterized in that, the high-field electrode wiring of low-temperature plasma generator is laid in plasma generator one end, low temperature
Junction between plasma generator high-field electrode and null electrode terminals and generator is secondary seal, and seal form is
Tandem double seals.
2. a kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device according to claim 1, feature exist
In the distance of the installation site distance low-temperature plasma generator of the ultrasonic oscillator is 3-100cm.
3. a kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device according to claim 1, feature exist
In the general power of the ultrasonic oscillator is 0.1-10kw/m2。
4. a kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device according to claim 1, feature exist
In in step (3), when filling cleaning solution into low-temperature plasma generator, plasma generator high-pressure side is located at cleaning solution
Liquid level more than, and null electrode is immersed in cleaning solution.
5. a kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device according to claim 1, feature exist
In cleaning solution described in step (3) is any one in water or alkalescent cleaning solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409665.1A CN108325359B (en) | 2017-06-02 | 2017-06-02 | A kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409665.1A CN108325359B (en) | 2017-06-02 | 2017-06-02 | A kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108325359A true CN108325359A (en) | 2018-07-27 |
| CN108325359B CN108325359B (en) | 2019-04-09 |
Family
ID=62923051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710409665.1A Active CN108325359B (en) | 2017-06-02 | 2017-06-02 | A kind of method of the online coke cleaning of low-temperature plasma waste gas treatment device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108325359B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073678A (en) * | 2018-10-22 | 2020-04-28 | 中国石油化工股份有限公司 | Ultrasonic quenching device capable of removing coke on line and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331851Y (en) * | 1997-07-16 | 1999-08-04 | 魏浩鹏 | Low-frequency acoutic-wave boiler soot-blowing, coke-knocking combustion-support device |
| RU2339878C2 (en) * | 2006-07-17 | 2008-11-27 | Сергей Владимирович Алексеенко | Method of plasma-coal lighting up of boiler and associated plant |
| CN107042039A (en) * | 2017-06-12 | 2017-08-15 | 南京大学盐城环保技术与工程研究院 | The device and processing method of a kind of dielectric barrier discharge low-temperature plasma concerted catalysis processing organic exhaust gas |
-
2017
- 2017-06-02 CN CN201710409665.1A patent/CN108325359B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331851Y (en) * | 1997-07-16 | 1999-08-04 | 魏浩鹏 | Low-frequency acoutic-wave boiler soot-blowing, coke-knocking combustion-support device |
| RU2339878C2 (en) * | 2006-07-17 | 2008-11-27 | Сергей Владимирович Алексеенко | Method of plasma-coal lighting up of boiler and associated plant |
| CN107042039A (en) * | 2017-06-12 | 2017-08-15 | 南京大学盐城环保技术与工程研究院 | The device and processing method of a kind of dielectric barrier discharge low-temperature plasma concerted catalysis processing organic exhaust gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073678A (en) * | 2018-10-22 | 2020-04-28 | 中国石油化工股份有限公司 | Ultrasonic quenching device capable of removing coke on line and application thereof |
| CN111073678B (en) * | 2018-10-22 | 2022-01-07 | 中国石油化工股份有限公司 | Ultrasonic quenching device capable of removing coke on line and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108325359B (en) | 2019-04-09 |
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