CN209848870U - Dielectric barrier plasma discharge reactor with cooling function - Google Patents
Dielectric barrier plasma discharge reactor with cooling function Download PDFInfo
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- CN209848870U CN209848870U CN201920378809.6U CN201920378809U CN209848870U CN 209848870 U CN209848870 U CN 209848870U CN 201920378809 U CN201920378809 U CN 201920378809U CN 209848870 U CN209848870 U CN 209848870U
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Abstract
The utility model provides a dielectric barrier plasma reactor with cooling function, including discharge unit and cooling system, the discharge unit includes the first dielectric shell of first conducting liquid of being equipped with in, the second dielectric shell of second conducting liquid of being equipped with in and sets up the spacer between first dielectric shell and second dielectric shell, and cooling system includes first stock solution device, second stock solution device, cooling chamber, third stock solution device, fourth stock solution device; the first liquid storage device and the second liquid storage device are respectively communicated with one end of the first medium shell and one end of the second medium shell, the third liquid storage device and the fourth liquid storage device are respectively communicated with one end of the first medium shell and one end of the second medium shell, and the cooling chamber is communicated with the first liquid storage device, the second liquid storage device, the third liquid storage device and the fourth liquid storage device. The utility model discloses add and establish cooling system, realized the electrode cooling heat dissipation, make the reactor discharge more evenly stable.
Description
Technical Field
The utility model relates to a plasma reactor field especially relates to a dielectric barrier plasma discharge reactor with cooling function.
Background
Dielectric Barrier Discharge (DBD) is a non-equilibrium state gas Discharge with an insulating Dielectric inserted into a Discharge space, which is also called Dielectric Barrier corona Discharge or silent Discharge. It has been widely used in various fields such as sterilization, disinfection, indoor air purification, organic waste gas treatment, ozone preparation, substance synthesis, material surface treatment, etc. The double-dielectric barrier discharge is a form of dielectric barrier discharge, can work in a high pressure and wide frequency range, and in the double-dielectric barrier discharge unit structure, a dielectric layer separates an electrode from gas to be processed, so that the double-dielectric barrier discharge has the advantage that the electrode is not corroded by processing substances.
At present, the structure of a plane-surface double-medium barrier discharge structure chart 1 is used mostly, namely a high-voltage electrode, an insulating medium layer, a discharge gap, an insulating medium layer and a grounding electrode are arranged in sequence. Generally, a ceramic plate or a quartz plate is used as a dielectric layer, a stainless steel plate is used as an electrode material, and discharge is performed in a discharge gap between insulating dielectric layers by applying an electric high voltage. However, each discharge cell is a separate set of high voltage electrode, dielectric layer, discharge gap, dielectric layer, and grounding electrode, such as the discharge cell proposed in CN103861435B, and in the case of an automobile exhaust gas treatment device, a plasma reactor needs to use a large number of discharge cells, and accordingly a large amount of stainless steel, glass, or ceramic material is needed, resulting in a large volume of equipment, high manufacturing cost, and complicated structure.
And for plasma discharge, especially double-dielectric barrier discharge, the electrode part of the reactor has large heat, and the heat productivity has great influence on the discharge characteristic of the reactor after reaching a certain degree, thereby influencing the actual use effect.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, to among the prior art dielectric barrier plasma reactor equipment bulky, manufacturing cost high, and the structure is complicated, discharge electrode calorific capacity is big etc. above-mentioned defect, a dielectric barrier plasma reactor that discharges with cooling function is provided.
A dielectric barrier plasma discharge reactor with a cooling function comprises a discharge unit and a cooling system, wherein the discharge unit comprises a first dielectric shell in which first conductive liquid is arranged, a second dielectric shell in which second conductive liquid is arranged, and a spacer arranged between the first dielectric shell and the second dielectric shell; the first liquid storage device and the second liquid storage device are respectively communicated with one end of the first medium shell and one end of the second medium shell, the third liquid storage device and the fourth liquid storage device are respectively communicated with one end of the first medium shell and one end of the second medium shell, and the cooling chamber is communicated with the first liquid storage device, the second liquid storage device, the third liquid storage device and the fourth liquid storage device;
the first conductive liquid and the second conductive liquid are respectively connected with a high-voltage end and a grounding end of a high-voltage power supply;
the spacer separates the first dielectric layer from the second dielectric layer to form a fixed discharge gap.
Preferably, the first liquid storage device comprises a liquid storage tank a connected with the first medium shell and a liquid storage tank b connected with the cooling chamber, and a control valve a is arranged between the liquid storage tank a and the liquid storage tank b.
The second liquid storage device comprises a liquid storage tank c connected with the second medium shell and a liquid storage tank d connected with the cooling chamber, and a control valve b is arranged between the liquid storage tank c and the liquid storage tank d.
The third liquid storage device comprises a liquid storage tank e connected with the first medium shell and a liquid storage tank f connected with the cooling chamber, and a control valve c is arranged between the liquid storage tank e and the liquid storage tank f.
The fourth liquid storage device comprises a liquid storage tank g connected with the second medium shell and a liquid storage tank h connected with the cooling chamber, and a control valve d is arranged between the liquid storage tank g and the liquid storage tank h.
A control valve e is arranged between the liquid storage tank b and the cooling chamber, a control valve f is arranged between the liquid storage tank d and the cooling chamber, a control valve g is arranged between the liquid storage tank e and the first medium shell, and a control valve f is arranged between the liquid storage tank g and the second medium shell.
Preferably, the first dielectric shell, the second dielectric shell and the spacer are made of insulating metal oxide, inorganic material other than metal oxide, organic material or composite of two or more of them; the metal oxide is cerium oxide, iron oxide, aluminum oxide, zinc oxide, titanium oxide, chromium oxide, zirconium oxide, magnesium oxide or nickel oxide, the inorganic material except the metal oxide is mica, silicon oxide or glass, and the organic material is plastic or rubber.
The discharge unit can be according to the place difference that uses, and the layer arbitrary shape of buckling, among the foretell several kinds of materials, preferred insulating metal oxide for be convenient for warp crooked, the crookedness of deformation is controllable, and under no exogenic action, can keep in the deformation state.
Preferably, the cross-section of the first and second dielectric shells is circular, polygonal including equilateral and scalene polygons, rhomboid, triangular, semicircular, sector, pentastar, oval, trapezoidal, and irregularly sealed shapes.
Further preferably, the cross-sectional shape of the first dielectric shell and the second dielectric shell is one of a circle, an equilateral polygon, and an ellipse. The shapes are small in stress required to be overcome during bending and labor-saving, and the resilience force is small after the shape is bent to the required shape, so that the bending degree is maintained more favorably.
The first and second dielectric shells have a cross-sectional outer dimension in the range of 0.1mm to 10cm, preferably in the range of 2mm to 20 mm. The first and second dielectric layers have a cross-sectional wall thickness in the range of 1 micron to 10cm, preferably 0.1mm to 2 mm.
Preferably, the first conductive liquid and the second conductive liquid are solutions of acid, alkali and salt, such as an aqueous solution containing at least one of sodium chloride, zinc chloride, magnesium chloride, copper chloride, ferric chloride, sodium nitrate, magnesium nitrate, dilute nitric acid, dilute sulfuric acid, dilute hydrochloric acid, sodium hydroxide, barium hydroxide, potassium hydroxide or calcium hydroxide.
Preferably, the discharge gap d is 0.1mm or more.
Preferably, a plurality of basic units may be connected in series or in parallel and placed together inside the reactor shell during the use of the discharge unit.
Preferably, the communication pipe and the control valve used in the cooling system are made of non-conductive insulating materials.
Preferably, the cooling water in the cooling chamber is connected to the ground through a ground line.
The liquid storage tank, the liquid storage tank and the cooling chamber of the cooling system are all provided with certain conductive liquid, and the implementation steps of the cooling system are as follows:
1. when the discharging unit starts to discharge, closing the control valve and the control valve, opening the control valve and the control valve to control the flow rate of the first conductive liquid and the second conductive liquid, and simultaneously opening the control valve and the control valve to store the conductive liquids in the liquid storage tank and the liquid storage tank;
2. after a certain time, closing the control valve and the control valve, collecting the conductive liquid in the liquid storage tank and the liquid storage tank respectively, opening the control valve and the control valve, cooling the conductive liquid in the cooling chamber from the liquid storage tank and the liquid storage tank, then closing the control valve and the control valve, and starting the water suction pump to pump the cooled conductive liquid in the cooling chamber into the liquid storage tank and the liquid storage tank;
3. after a certain time, the water pump is shut down, the control valve and the control valve are closed, the control valve and the control valve are opened, the conductive liquid respectively enters the liquid storage tank from the liquid storage tank, the control valve and the control valve are opened, and the conductive liquid respectively enters the liquid storage tank from the liquid storage tank and the liquid storage tank from the liquid storage tank.
It should be noted that the liquid level in the liquid storage tank is at least 10cm lower than the pipe orifice of the liquid inlet pipe from beginning to end, so as to avoid short circuit with the conductive liquid. The control valve in the cooling system can adopt an intelligent control valve, automatic control is carried out according to a set program, and the on and off of the water pump are also intelligently controlled.
The utility model discloses the advantage has: 1. the conductive solution is provided to replace the electrode material, thereby saving the manufacturing cost of the reactor; 2. the discharge reactor comprises a cooling system, so that cooling and heat dissipation of the electrode are realized; 3. the utility model provides a discharge unit has arbitrary bendability, and it is laborsaving to buckle, can twine as required and form fixed plasma discharge reactor.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a schematic diagram of a surface-to-surface dual dielectric discharge structure in the prior art;
FIG. 2 is a schematic diagram of a plasma discharge reactor according to the present invention;
FIG. 3 is a schematic structural diagram of a discharge unit of the present invention;
fig. 4 is a schematic cross-sectional structure diagram of a discharge unit according to a first embodiment of the present invention;
FIG. 5 is a schematic view of an assembly structure of a spacer according to an embodiment of the present invention;
FIG. 6 is a schematic view of a disc-shaped discharge portion of the discharge unit of the present invention;
FIG. 7 is a schematic view of the present invention applied to a pipeline for treating exhaust gas;
fig. 8 is a schematic cross-sectional structure diagram of a discharge unit according to a second embodiment of the present invention;
fig. 9 is a schematic view of an assembly structure of a second spacer according to an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings
This detailed description is merely illustrative of the present invention and is not intended to be limiting. Any changes that may be made by one skilled in the art after reading the specification of the invention are, within the scope of the claims, protected by the patent laws.
Example 1:
the dielectric barrier plasma discharge reactor with the cooling function comprises a discharge unit 100, a high-voltage power supply 800 and a cooling system 400;
as shown in fig. 2, 3 and 4, the discharge cell 100 includes a first dielectric shell 101 containing a first conductive liquid 104, a second dielectric shell 102 containing a second conductive liquid 105, and a spacer 120 disposed between the first dielectric shell 101 and the second dielectric shell 102, wherein the first conductive liquid 104 and the second conductive liquid 105 are respectively connected to a high voltage terminal 801 and a ground terminal 802 of a high voltage power supply 800; the spacers 120 separate the first dielectric layer 101 from the second dielectric layer 102 to form a fixed discharge gap 103. The two ends of the spacer 120 are respectively provided with a spacer male joint 121 and a spacer female joint 122, and the connection mode and structure between the spacer male joint 121 and the spacer female joint 122 are shown in fig. 5.
As shown in fig. 2, the cooling system 400 includes a first liquid storage device, a second liquid storage device, a cooling chamber 401, a third liquid storage device, and a fourth liquid storage device; the first liquid storage device and the second liquid storage device are respectively communicated with one end of the first medium shell 101 and one end of the second medium shell 102, the third liquid storage device and the fourth liquid storage device are respectively communicated with one end of the first medium shell 101 and one end of the second medium shell 102, and the cooling chamber 401 is communicated with the first liquid storage device, the second liquid storage device, the third liquid storage device and the fourth liquid storage device.
The first liquid storage device includes a liquid storage tank a336 connected with the first medium housing 101, and a liquid storage tank b338 connected with the cooling chamber 401, and a control valve a225 is arranged between the liquid storage tank a336 and the liquid storage tank b 338.
The second liquid storage device comprises a liquid storage tank c335 connected with the second medium shell 102 and a liquid storage tank d337 connected with the cooling chamber 401, and a control valve b226 is arranged between the liquid storage tank c335 and the liquid storage tank d 337.
The third liquid storage device includes a liquid storage tank e331 connected to the first medium case 101, and a liquid storage tank f333 connected to the cooling chamber 401, and a control valve c223 is provided between the liquid storage tank e331 and the liquid storage tank f 333.
The fourth liquid storage device comprises a liquid storage tank g332 connected with the second medium shell 102 and a liquid storage tank h334 connected with the cooling chamber 401, and a control valve d224 is arranged between the liquid storage tank g332 and the liquid storage tank h 334.
A control valve e227 is arranged between the liquid storage tank b338 and the cooling chamber 401, a control valve f228 is arranged between the liquid storage tank d337 and the cooling chamber 401, a control valve g221 is arranged between the liquid storage tank e331 and the first medium shell 101, and a control valve f222 is arranged between the liquid storage tank g332 and the second medium shell 102.
Adopt the utility model discloses well discharge unit twines into the disc that the diameter is 100mm around support 600, as shown in fig. 6, 7, put into the internal diameter for 100 mm's pipeline with this disc, be used for discharge treatment to pass through the waste gas of pipeline, 2mm are got to discharge gap 120, first medium shell 101 and second medium shell 102 all adopt the special fluorine dragon pipe, the cross-section is circular, the inside diameter of pipe is 3mm, wall thickness 1.5mm, conducting liquid is 30% sodium chloride solution, shock insulator 120 adopts insulating metal oxide magnesium oxide. The height of a liquid storage tank in the cooling system is set to be 40cm, and before the reactor works, the liquid storage tank e331, the liquid storage tank g332 and the cooling chamber 401 of the cooling system are all provided with conductive liquid with the liquid level height of 20 cm.
The working steps of the cooling system are as follows:
1. when the discharge unit 100 starts discharging, the control valve e227 and the control valve f228 are closed, the control valve g221 and the control valve f222 are opened to control the flow rates of the first conductive liquid 104 and the second conductive liquid 105, and simultaneously, the control valve a225 and the control valve b226 are opened, and the conductive liquids are stored in the liquid storage tank d337 and the liquid storage tank b 338;
2. when the liquid levels of the liquid storage tanks 331 and 332 are reduced to 20cm, the control valve a225 and the control valve b226 are closed, the conductive liquid is collected in the liquid storage tank c335 and the liquid storage tank a336 respectively, the control valve e227 and the control valve f228 are opened, the conductive liquid enters the cooling chamber 401 from the liquid storage tank d337 and the liquid storage tank b338 for cooling, then the control valve c223 and the control valve d224 are closed, and the water pump 402 is started to pump the conductive liquid cooled in the cooling chamber into the liquid storage tank f333 and the liquid storage tank h 334;
3. when the liquid levels of the liquid storage tank 331 and the liquid storage tank 332 are reduced to 10cm, the water suction pump 402 is stopped, the control valve f228 and the control valve e227 are closed, the control valve a225 and the control valve b226 are opened, the conductive liquid enters the liquid storage tank d337 and the liquid storage tank b338 from the liquid storage tank c335 and the liquid storage tank a336 respectively, the control valve c223 and the control valve d224 are opened, and the conductive liquid enters the liquid storage tank e331 and the liquid storage tank g332 from the liquid storage tank f333 and the liquid storage tank h334 respectively.
Example 2:
as shown in fig. 8 and 9, the difference from embodiment 1 is that, in the discharge cell, the insulating metal oxide zinc oxide is used as the material of the first dielectric shell 101, the second dielectric shell 102 and the spacer 120, the cross sections of the first dielectric shell 101 and the second dielectric shell 101 are square, and the copper chloride solution is used as the first conductive liquid 104 and the second conductive liquid 105.
It should be noted that the above example is only one specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (10)
1. A dielectric barrier plasma discharge reactor with a cooling function comprises a discharge unit and is characterized by further comprising a cooling system, wherein the discharge unit comprises a first dielectric shell filled with first conductive liquid, a second dielectric shell filled with second conductive liquid and a spacer arranged between the first dielectric shell and the second dielectric shell; the first liquid storage device and the second liquid storage device are respectively communicated with the bottoms of the first medium shell and the second medium shell, the third liquid storage device and the fourth liquid storage device are respectively communicated with the tops of the first medium shell and the second medium shell, and the cooling chamber is communicated with the first liquid storage device, the second liquid storage device, the third liquid storage device and the fourth liquid storage device; the first conductive liquid and the second conductive liquid are respectively connected with a high-voltage end and a grounding end of a high-voltage power supply; the spacer separates the first dielectric layer from the second dielectric layer to form a fixed discharge gap.
2. The dielectric barrier plasma discharge reactor with the cooling function as claimed in claim 1, wherein the first liquid storage device comprises a liquid storage tank a connected with the first dielectric shell, and a liquid storage tank b connected with the cooling chamber, and a control valve a is arranged between the liquid storage tank a and the liquid storage tank b;
the second liquid storage device comprises a liquid storage tank c connected with the second medium shell and a liquid storage tank d connected with the cooling chamber, and a control valve b is arranged between the liquid storage tank c and the liquid storage tank d;
the third liquid storage device comprises a liquid storage tank e connected with the first medium shell and a liquid storage tank f connected with the cooling chamber, and a control valve c is arranged between the liquid storage tank e and the liquid storage tank f;
the fourth liquid storage device comprises a liquid storage tank g connected with the second medium shell and a liquid storage tank h connected with the cooling chamber, and a control valve d is arranged between the liquid storage tank g and the liquid storage tank h.
3. The dielectric barrier plasma discharge reactor with cooling function as claimed in claim 2, wherein a control valve e is disposed between the liquid storage tank b and the cooling chamber, a control valve f is disposed between the liquid storage tank d and the cooling chamber, a control valve g is disposed between the liquid storage tank e and the first dielectric shell, and a control valve f is disposed between the liquid storage tank g and the second dielectric shell.
4. The dielectric barrier plasma discharge reactor with cooling function as claimed in claim 1, wherein the first dielectric shell and the second dielectric shell are made of insulating metal oxide.
5. The dielectric barrier plasma discharge reactor with cooling function of claim 4, wherein the metal oxide is cerium oxide, iron oxide, aluminum oxide, zinc oxide, titanium oxide, chromium oxide, zirconium oxide, magnesium oxide or nickel oxide.
6. The dielectric barrier plasma discharge reactor with cooling function of claim 1, wherein the cross-sectional shape of the first dielectric shell and the second dielectric shell is one of circular, equilateral polygon, and ellipse.
7. The dielectric barrier plasma discharge reactor with cooling function as claimed in claim 1, wherein the discharge gap d is not less than 0.1 mm.
8. The dielectric barrier plasma discharge reactor with cooling function as claimed in claim 1, wherein the cooling water in the cooling chamber is connected to the ground through a ground line.
9. A dielectric barrier plasma discharge reactor with cooling according to claim 1, characterized in that the outer diameter of the first dielectric shell and the second dielectric shell ranges from 2mm to 20 mm.
10. The dielectric barrier plasma discharge reactor with cooling function of claim 1, wherein the thickness of the first dielectric layer and the second dielectric layer is 0.1mm to 2 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920378809.6U CN209848870U (en) | 2019-03-25 | 2019-03-25 | Dielectric barrier plasma discharge reactor with cooling function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920378809.6U CN209848870U (en) | 2019-03-25 | 2019-03-25 | Dielectric barrier plasma discharge reactor with cooling function |
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| CN209848870U true CN209848870U (en) | 2019-12-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772248A (en) * | 2019-03-25 | 2019-05-21 | 安吉润风空气净化科技有限公司 | A kind of dielectric barrier plasma discharge reactor with refrigerating function |
-
2019
- 2019-03-25 CN CN201920378809.6U patent/CN209848870U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772248A (en) * | 2019-03-25 | 2019-05-21 | 安吉润风空气净化科技有限公司 | A kind of dielectric barrier plasma discharge reactor with refrigerating function |
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