CN207903908U - A kind of Combined type low-temperature plasma reactor - Google Patents
A kind of Combined type low-temperature plasma reactor Download PDFInfo
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- CN207903908U CN207903908U CN201721295440.XU CN201721295440U CN207903908U CN 207903908 U CN207903908 U CN 207903908U CN 201721295440 U CN201721295440 U CN 201721295440U CN 207903908 U CN207903908 U CN 207903908U
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Abstract
The utility model discloses a kind of Combined type low-temperature plasma reactors, belong to waste gas purification technical field.Including air inlet section, reactor, air outlet section, plasma power supply, several discharge electrodes are arranged deeply to inside reactor in the opposite both sides of reactor, linear arrangement, and it is mutually parallel, side is high-field electrode, the other side is low-field electrode, is coupled respectively with plasma power supply, and certain gap is at least arranged between electrode.The mixed gas of hydrogen chloride and oxygen is high by the excitation in multiple electric discharge sections intersected with airflow direction and dissociation, hydrogen chloride transformation efficiency；Reaction gas is not contacted with discharge electrode, and electrode life is long；Structure of reactor is simple, easy to maintenance, it can be achieved that discharge power and dimensional energy distribution are freely adjusted, the limitation of no industry amplification.
Description
Technical field
The utility model belongs to waste gas purification technical field, is related to a kind of Combined type low-temperature plasma reactor.
Background technology
Chlorine is the important source material in numerous organic chlorides production processes, and while carrying out substitution reaction, usually
Equimolar by-product hydrogen chloride gas is will produce, these hydrogen chloride are usually that hydrochloric acid is made after being absorbed with water, undersell or return
It receives and utilizes, but drug on the market always in hydrochloric acid market, the Sales Channel of the hydrochloric acid of by-product has some setbacks very much, and master is not only influenced after overstocking
The normal production of artificial delivery product can also bring problem of environmental pollution directly or indirectly, it has also become restrict polyurethane, chlor-alkali, organic
The general character problem of numerous industrial development such as fluorine, pesticide, medication chemistry.Therefore, the downstream product of reasonable development by-product hydrogen chloride is
Solve the problems, such as this effective way.Currently used method mainly has electrolysis of hydrochloric acid method, direct oxidation method and catalytic oxidation.But
Since electrolysis investment is big, high energy consumption, requires device high and product purity insufficient；Although direct oxidation method conversion ratio is higher,
But the problem of electrolysis, still remains, and reaction step is complicated, and by-product is more, and product separation is difficult；Catalytic oxidation has
Low energy consumption, easy to operate, can realize the advantages that industrialization easily, but influenced by back reaction, the conversion ratio of HCl is relatively low, not instead
The HCl answered meets aquatic hydrochloric acid etching apparatus, and higher reaction temperature also results in catalyst volatilization and activity reduces rapidly.Deng
Processes hydrogen chloride is converted into the transform mode that chlorine is considered fast, environmentally friendly, HCl and O2Gas is in argon-arc plasma field
Middle molecular link is easier to be opened or aoxidize, and gas generates the high energy electron and O, O of higher concentration by partial ionization3Free radical,
These active factors directly participate in cracking and oxidation chlorination hydrogen, and chloride can be re-used for by generating chlorine and water, chlorine
Manufacturing process, realize that chlorine resource recycles.
Patent CN102602891B discloses a kind of method that hydrogen chloride prepares chlorine, makes hydrogen chloride in microwave or/and magnetic
Field cracks in the environment of being coupled with arc-plasma is made chlorine and hydrogen, and the structure of reactor is complicated, and heat utilization rate is low.
Patent CN103145099.A discloses a kind of method preparing chlorine using magnetically stable fluidized bed progress chloration hydro-oxidation, utilizes two
The magnetic field heating magnetic catalyst of a alternation is to 350-450 DEG C, then is passed through into magnetically stable fluidized bed and is preheated to 200-300 DEG C, energy
Consumption is higher, and structure of reactor is complicated.
Patent CN10361139 discloses spool formula low temperature plasma unitary reactor and combinations thereof system, the reactor
It is made of positive electrode, pipe external electrode and sealing ring, is applied to exhaust-gas treatment, can be according to the needs of engineering at exhaust gas, adapted is N number of
Unitary reactor combines to form reactor matrix with series-parallel system, complicated, increases the difficulty of repair, and reactor and
The conducting wire of power supply is connected in babinet, is not appropriate for using in the strong corrosives gaseous environment such as hydrogen chloride, chlorine.
Patent CN106334420A discloses a kind of combined discharge type reaction of low temperature plasma device and air cleaning unit,
Two electric discharge screw rods and group's needle are separately connected direct current high frequency positive high voltage and direct current high frequency negative high voltage, high impedance insulator pipe zero potential electricity
Polar curve circle connects ground wire, forms five discharging structures, generates combined electric field and combination plasma field, discharge electrode directly expose
In reaction gas, the loss of discharge electrode can be caused in corrosivity or Strong oxdiative gas, and the work that plasma discharge generates
Property ion and free radical can further speed up the loss of electrode.
Invention content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of Combined type low-temperature plasma reactor, chlorination
Excitation and dissociation of the mixed gas of hydrogen and oxygen by multiple electric discharge sections intersected with airflow direction, hydrogen chloride transformation efficiency
It is high；Reaction gas is not contacted with discharge electrode, and structure of reactor is simply, it can be achieved that the freedom of discharge power and dimensional energy distribution
It adjusts.
The utility model adopts the following technical solution：
A kind of Combined type low-temperature plasma reactor, including air inlet section, reactor, air outlet section, plasma power supply, reaction
Several discharge electrodes are arranged deeply to inside reactor, linear arrangement in the opposite both sides of device, and are mutually parallel, and side is high pressure
Electrode, the other side are low-field electrode, are coupled respectively with plasma power supply, and certain gap is at least arranged between electrode.
A kind of Combined type low-temperature plasma reactor, high-field electrode and low-field electrode interval in plane of discharging
Arrangement.
A kind of Combined type low-temperature plasma reactor, setting reactor are N (N >=1) section, discharge electrode M
(M >=2) are a.
A kind of Combined type low-temperature plasma reactor, reactor are acid-alkali-corrosive-resisting material.
A kind of Combined type low-temperature plasma reactor, reactor wall also set up baffle plate.
A kind of Combined type low-temperature plasma reactor, the interior electrode of discharge electrode are conductive material, can be with
For entity, hollow and other forms metal or graphite, or its powder.
A kind of Combined type low-temperature plasma reactor, discharge electrode outer tube are highly-resistant material, can be stone
English glass, ceramics, epoxy resin etc. are any.
The lateral clearance A of a kind of Combined type low-temperature plasma reactor, discharge electrode is 20-50mm, longitudinal
Gap B is 1-10mm.
A kind of Combined type low-temperature plasma reactor, power density are 2 × 10-6To 5 × 10-5W/m3。
The beneficial effects of the utility model are：A kind of Combined type low-temperature plasma reactor, hydrogen chloride and oxygen mix
Gas to be closed to be dissociated by multiple plasma discharge planes, discharge power and Energy distribution can be adjusted freely as needed,
The transformation efficiency of hydrogen chloride is high, and structure of reactor is simple, can and can go here and there, and easy to maintenance, electrode life is long, the limit of no industry amplification
System.
Description of the drawings
Fig. 1 is a kind of general assembly drawing of Combined type low-temperature plasma reactor.
Fig. 2 is the front view of single reactor body.
Fig. 3 is the sectional view along A-A of Fig. 2 reactor bodies.
Fig. 4 is the sectional view of discharge electrode.
Fig. 5 is the sectional view of 2 discharge electrode of the utility model embodiment.
Fig. 6 is the electrode connection figure of the utility model.
Fig. 7 is 3 reactor B-B of Fig. 7 the utility model embodiments to sectional view.
Fig. 8 is the front view of 4 single reactor body of the utility model embodiment.
Drawing reference numeral：1 air inlet section, 2 reactors, 3 air outlet sections, 4 discharge electrodes, 5 locknuts, 6 discharge channels, electrode, 8 in 7
Electrode outer tube, 9 metal powders, 10 baffle plates.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1, refer to the attached drawing 1-5, a kind of Combined type low-temperature plasma reactor include air inlet section 1, and reactor 2 goes out
Gas section 3.Air inlet section 1 is connect with air admission unit, and reactor 2 is rectangular configuration, and quantity is 1-N (N >=1) section, and material is polytetrafluoro
Equal resistant materials are provided with a discharge electrodes 4 of M (M >=2) on the opposite two sides of reactor 2, and opposite intercalation reaction device 2 corresponds to
Hole in, be used in combination locknut 5 fix, there is sealing material in the front end of locknut 5.The discharge electrode 4 and plasma power supply of 2 one side of reactor
High-pressure side connection, the discharge electrode 4 of another side connect (such as Fig. 6) with the low-pressure end of plasma power supply, and plasma power supply is high
The frequency pulse power, electrode 7 is conductive material in discharge electrode 4, and electrode outer tube 8 is quartz glass, ceramic or other high impedances
Material, interior electrode 7 are equipped with sealing material close to 8 exit of electrode outer tube, and the end set of interior electrode 7 has screw thread, passes through conducting wire
It is reliably connected with the high-pressure side or low-pressure end of plasma power supply, lateral clearance A is 20-50mm between discharge electrode 4, between longitudinal direction
Gap B is 1-10mm, and in horizontal and vertical projection in approximately the same plane, air outlet section 3 connects discharge electrode 4 with outlet cell
It connects.Plasma power supply is opened, as voltage gradually rises, neighbouring discharge electrode 4 is breakdown in the lateral cross section of reactor, is formed
The discharge channel 6 that numerous electric discharge filament is constituted, forms multiple plasma discharges intersected with airflow direction in reactor 2
Plane.From air inlet section 1 enter reactor 2 hydrogen chloride and oxygen mixed gas be excited after overdischarge plane or from
Solution, generates the active particle or free radical of a large amount of high energy electron and hydrogen, oxygen, chlorine, collides, draws with hydrogen chloride and oxygen molecule
Hair, makes its dissociation, reconfigures and generate chlorine and water, and through water removal, pure chlorine is obtained after separation, is used for the chlorine of high polymer
Change or other chlorine consuming products.This reactor can be by the number and spatial arrangement mode of change discharge electrode 4 to region of discharge
Energy density and distribution freely adjust, power density be 2 × 10-6To 5 × 10-5W/m3Between, except the chloration hydro-oxidation system of being used for
Outside chlorine, the degradation treatment of reacting to each other between other gas phases or liquid phase substance and waste liquid, exhaust gas can be also used for.
Embodiment 2, refer to the attached drawing 5, the present embodiment difference from Example 1 are, in interior electrode 7 and electrode outer tube 8
Between load metal powder 9, granularity is less than 100 mesh, and point discharge is more readily formed in the irregular shape of metal powder, to increase
Uniform discharge.
Embodiment 3, refer to the attached drawing 7, the present embodiment difference from Example 1 be, up and down the two of reactor wall
Be provided with baffle plate on a face, baffle plate be located at it is between 2 discharge electrodes 4 and parallel with the axis of electrode, make reaction gas from
The discharge channel 6 of electrode passes through, and improves reaction efficiency and Uniform discharge.
Embodiment 4, refer to the attached drawing 8, the present embodiment difference from Example 1 are that the electric discharge that discharge electrode 4 is formed is flat
It is 15 °≤α≤165 ° that the fore-and-aft plane of face and reactor 2, which has an angle α, value,.
Claims (8)
1. a kind of Combined type low-temperature plasma reactor, including air inlet section, reactor, air outlet section, plasma power supply, feature
It is that several discharge electrodes are arranged deeply to inside reactor, linear arrangement in the opposite both sides of reactor, and is mutually parallel, one
Side is high-field electrode, and the other side is low-field electrode, is coupled respectively with plasma power supply, between being at least arranged centainly between electrode
Gap, high-field electrode and low-field electrode arranged for interval in plane of discharging.
2. a kind of Combined type low-temperature plasma reactor according to claim 1, it is characterised in that setting reactor is N
Section, discharge electrode are M, wherein N >=1, M >=2.
3. according to a kind of any Combined type low-temperature plasma reactor of claim 1,2, it is characterised in that reactor
For acid-alkali-corrosive-resisting material.
4. a kind of Combined type low-temperature plasma reactor according to claim 1, it is characterised in that reactor wall is also
Baffle plate is set.
5. according to a kind of any Combined type low-temperature plasma reactor of claim 1,2, it is characterised in that electric discharge electricity
The interior electrode of pole is conductive material.
6. according to any a kind of Combined type low-temperature plasma reactor in claim 1,2 or 4, it is characterised in that electric discharge
Electrode outer tube is highly-resistant material.
7. according to any a kind of Combined type low-temperature plasma reactor in claim 1,2 or 4, it is characterised in that electric discharge
The lateral clearance A of electrode is 20-50mm, and axial clearance B is 1-10mm.
8. according to any a kind of Combined type low-temperature plasma reactor in claim 1,2 or 4, it is characterised in that power
Density is 2 × 10-6To 5 × 10-5W/m3。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721295440.XU CN207903908U (en) | 2017-10-10 | 2017-10-10 | A kind of Combined type low-temperature plasma reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721295440.XU CN207903908U (en) | 2017-10-10 | 2017-10-10 | A kind of Combined type low-temperature plasma reactor |
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| CN207903908U true CN207903908U (en) | 2018-09-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439729A (en) * | 2019-01-16 | 2020-07-24 | 中国石油化工股份有限公司 | High-flux low-temperature plasma discharge device and method for decomposing hydrogen sulfide |
-
2017
- 2017-10-10 CN CN201721295440.XU patent/CN207903908U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439729A (en) * | 2019-01-16 | 2020-07-24 | 中国石油化工股份有限公司 | High-flux low-temperature plasma discharge device and method for decomposing hydrogen sulfide |
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