CN113013736A - Electric field pinch ion generation method and device - Google Patents
Electric field pinch ion generation method and device Download PDFInfo
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- CN113013736A CN113013736A CN202011102123.8A CN202011102123A CN113013736A CN 113013736 A CN113013736 A CN 113013736A CN 202011102123 A CN202011102123 A CN 202011102123A CN 113013736 A CN113013736 A CN 113013736A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 150000002500 ions Chemical class 0.000 claims abstract description 72
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- 239000011810 insulating material Substances 0.000 claims description 9
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- 210000003437 trachea Anatomy 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 7
- 238000002347 injection Methods 0.000 abstract description 4
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- 230000002265 prevention Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
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- 239000012159 carrier gas Substances 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
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- Elimination Of Static Electricity (AREA)
Abstract
The invention provides a method and a device for generating electric field pinch ions aiming at the problem of less ion output of an ion generator with a power supply, belonging to the industries and the fields of electrostatic application and static prevention of petrochemical industry, environmental protection, microelectronics, textile and the like. The invention adopts a needle electrode and a ring electrode, wherein the needle electrode is arranged on the central axis of the geometric center of the ring electrode, the potential polarities of the needle electrode and the ring electrode are the same, ions generated by corona discharge of the needle electrode fly to the ring electrode under the action of electric field force, and the potential of the ring electrode is the same as the polarity of the ions, so that the ions generated by the corona discharge are pinched into ion beams which pass through the ring electrode to be output, and the directional high-efficiency output of an ion generator is realized. The ion generator has the advantages of simple structure, energy conservation and high efficiency, and can be applied to ion injection or injection processes produced by industrial enterprises.
Description
Technical Field
The invention relates to a method and a device for generating electric field pinch ions, belonging to the industries and the fields of electrostatic application and static prevention of petrochemical industry, environmental protection, microelectronics, textile and the like.
Background
In the production process of industries such as petrochemical industry, microelectronics, textile industry and the like, a plurality of insulating materials are used, the insulating materials basically exist in the forms of gas, liquid or solid (powder, particles or surfaces) and the like, when static electricity is generated between the insulating materials or between the insulating materials and conductors through contact (collision or friction), accumulated charges are formed on the surfaces of the materials to form an electric field, on one hand, the insulating materials attract surrounding fine substances such as dust and the like or attract materials with different charges under the action of the electric field, and therefore the stable operation of the industrial production or the quality reduction of products are caused; on the other hand, the electric field intensity on the surface of the material is increased along with the increase of the accumulated amount of the charges on the surface of the material, and when the electric field intensity reaches the breakdown field intensity, discharge is generated to cause disastrous accidents such as fire or explosion, so that the static elimination technology is required to be applied in the production processes of the related industries to neutralize the charges inside or on the surface of the insulating material so as to ensure the product quality and the industrial safety production.
In the environmental pollution treatment industry, particularly, smoke of coal-fired boiler smoke, industrial kiln smoke, diesel engine smoke and the like contains a large amount of dust, and waste gas discharged by the industries of paint spraying, coating, welding and the like contains dust, organic aerosol and particulate matters, and water vapor discharged by cooling towers in the chemical industry and the electric power industry, so that the atmospheric environment where people live is seriously polluted.
In the painting and chemical spraying industry, paint or chemical is sprayed from a nozzle and then is directionally driven by carrier gas to be attached to a target, but the driving force is weakened along with the increase of the distance from the nozzle, and the paint or chemical is dispersed to the periphery, so that part of the paint or chemical cannot be attached to the surface of the target (workpiece, crop and the like), and finally the paint or chemical is wasted. The electrostatic painting technology charges the powder of the paint or the fog drops of the medicine, and the charged paint or the medicine is directionally attached to the workpiece or the crop under the action of the electric field force, so that the waste of the paint or the medicine is reduced, and the environment is improved.
The static eliminating technology, the static collecting technology and the static coating technology all have a key principle process, namely ions with high concentration and high yield are generated through corona discharge, and the ions are utilized to neutralize the charges on the surface of an insulating material or enable aerosol or coating particles in waste gas to be charged and move directionally, so that the high efficiency of the application effect and the high efficiency of the energy utilization efficiency are realized. The principle of the ionizer on the market at present is basically the corona discharge principle, and the ionizer is classified into an active (power source) ionizer and a passive (power source-free) ionizer, wherein the active ionizer is classified into two types, i.e., a needle-mesh structure type composed of high-voltage electrode needles with small curvature radius and a low-voltage electrode mesh and a needle structure type composed of single high-voltage electrode needles (at infinity at this time, at low-voltage electrodes). The high-voltage output end of the high-voltage power supply 3 is connected with the high-voltage electrode needles, the low-voltage output end of the high-voltage power supply 3 is connected with the low-voltage electrode meshes and then grounded, or the low-voltage output end of the high-voltage power supply 3 is respectively grounded with the low-voltage electrode meshes, most of ions generated by the ionizer in the structure form are collected by the low-voltage electrode meshes, and only a part of residual ions pass through the low-voltage electrode meshes to be conveyed out, so that the ionizer in the structure form of needle-net has low ion conveying efficiency. The ionizer in the needle structure form is characterized in that a high-voltage output end of a high-voltage power supply 3 is connected with a high-voltage electrode needle, corona discharge is generated around the high-voltage electrode needle, and ions are conveyed out under the action of electric field force and carrier gas.
Disclosure of Invention
The invention provides a method and a device for generating electric field pinch ions aiming at the problem of less ion output of an ion generator with a power supply, which are formed by adopting a needle electrode and a ring electrode, wherein the needle electrode is arranged on a central axis of the geometric center of the ring electrode, the electric potential polarities of the needle electrode and the ring electrode are the same, ions generated by corona discharge of the needle electrode fly to the ring electrode under the action of electric field force, and the electric potential of the ring electrode is the same as the polarity of the ions, so the ions generated by the corona discharge are pinched into ion beams 9 to pass through the ring electrode to be output under the action of the electric field of the ring electrode, and the flow shape of the ion beams 9 is regulated and controlled by regulating and controlling the relative positions of the needle electrode and the ring electrode and the electric potential size on the ring electrode, so that the.
In order to achieve the purpose, the invention adopts the technical scheme that:
an electric field pinch ion generating device comprises a needle electrode 1, a ring electrode 2, a high-voltage power supply 3, a voltage circuit 4, an air pipe 5 and the like.
The needle electrode 1 and the ring electrode 2 are coaxially arranged on the central axis of the air pipe 5, the ring electrode 2 is positioned at the opening edge of the air pipe 5, the needle electrode 1 is positioned above the air pipe 5, the output end of the high-voltage power supply 3 is connected with the needle electrode 1 through a lead 6, and the ring electrode 2 is grounded through a voltage circuit 4 to form a pole 7. The air flow 8 is guided through the air pipe 5 and flows from the needle electrode 1 to the ring electrode 2, and the carried ions are conveyed out through the ring electrode 2. By increasing the number of the needle electrodes 1 and the ring electrodes 2, the scale of the ion generating apparatus is increased.
The relative distance range of the tip of the needle electrode 1 and the ring surface is 1mm-50mm, the angle range of the needle tip is 0-45 degrees, the curvature radius of the ring edge is more than 3 times of the curvature radius of the needle tip, and the inner diameter range of the ring is 5mm-50 mm.
Further, the ring electrode 2 can be coaxially arranged outside the mouth of the trachea 5.
Further, the high voltage power supply 3 may be a high voltage dc power supply, including a positive polarity high voltage dc power supply or a negative polarity high voltage dc power supply, or a high voltage ac power supply; the peak value of the voltage is within the range of 5kV to 100kV, and the frequency of the voltage is within the range of 0Hz to 10 kHz.
Further, the needle electrode 1 and the ring electrode 2 are made of metal materials.
Further, the ring electrode 2 may be made of an insulating material.
Further, the needle electrode 1 may be replaced with a metal brush or a conductive fiber brush, and the ring electrode 2 may be replaced with a metal cylinder or an insulating cylinder.
An electric field pinch ion generating method is characterized in that a needle electrode 1 is arranged on a central axis of the geometric center of a ring electrode 2, high voltage is applied to the needle electrode 1 to generate corona discharge to generate ions, an electric potential with the same ion polarity is generated on the ring electrode 2 through a voltage circuit 4 to form a pinch electric field, and the ions generated by the corona discharge are pinched into an ion beam 9 to be emitted through the ring electrode 2.
Further, the voltage circuit 4 connecting the ring electrodes 2 can adopt the following three modes:
in the first method, the voltage circuit 4 for applying a potential to the ring electrode 2 divides the voltage applied to the needle electrode 1 by a voltage dividing circuit method and applies the divided voltage to the ring electrode 2 to form a pinch electric field, and the form of the ion beam 9 is adjusted by adjusting the pinch electric field by the voltage dividing ratio.
In the second method, the voltage circuit 4 for providing the ring electrode 2 with a potential is grounded through a resistor, a potential with the same polarity as that of ions is induced on the ring electrode 2 to form a pinch electric field, and the shape of the ion beam 9 is adjusted by adjusting the resistance value of the resistor to adjust the pinch electric field.
In the third method, the voltage circuit 4 for supplying a potential to the ring electrode 2 is grounded via a capacitor, and a potential having the same polarity as that of ions is induced to the ring electrode 2 to form a pinch electric field, and the shape of the ion beam 9 is adjusted by adjusting the capacitance of the capacitor to adjust the pinch electric field.
Further, the voltage on the needle electrode 1 is to generate corona discharge to generate ions, and the potential on the ring electrode 2 is to generate pinch electric field.
Further, the ion beam 9 shape is adjusted by adjusting the relative position of the needle electrode 1 and the ring electrode 2.
Further, the high voltage power supply 3 for applying a high voltage to the needle electrode 1 may be a high voltage dc power supply, including a positive polarity high voltage dc power supply or a negative polarity high voltage dc power supply, or a high voltage ac power supply.
The method and the device for generating the electric field pinch ions can also be used for conveying the ions carried by ion wind through the ring electrode 2.
The electric field pinch ion generating method and device provided by the invention can also be used for an ion jet method and device.
The invention has the beneficial effects that: the ion generator has a simple structure, can generate ions with energy saving and high efficiency, can be applied to ion injection or injection processes produced by industrial enterprises, and has a wide application industry range.
Drawings
FIG. 1 is a schematic structural diagram of a method and an apparatus for generating electric field pinch ions
FIG. 2 is an electrostatic field simulation diagram of an electric field pinch ion generation method
FIG. 3 is a simulation diagram of electrostatic field of the ion generation method with the ring electrode 2 grounded
FIG. 4 is a simulation diagram of electrostatic field of the ion generation method of the ringless electrode 2
FIG. 5 is a schematic diagram of a voltage circuit 4 of a method for generating electric field pinch ions
In the figure: 1 needle electrode; 2 a ring electrode; 3, a high-voltage power supply; 4 voltage circuit; 5, an air pipe; 6, a lead 6; 7, a ground pole 7; 8, airflow; 9 ion beam.
Detailed Description
An embodiment of the present invention is explained below with reference to the drawings.
The electric field pinch ion generating device comprises a needle electrode 1, a ring electrode 2, a high-voltage power supply 3, a voltage circuit 4, a gas pipe 5 and the like, wherein the needle electrode 1 and the ring electrode 2 are coaxially arranged on a central axis of the polyethylene gas pipe 5 with the inner diameter of 20mm, the ring electrode 2 is positioned at the edge of the opening of the gas pipe 5, the needle electrode 1 is a stainless steel needle with the diameter of 1.3mm and the needle point angle of 15 degrees, the ring electrode 2 is a ring with the outer diameter of 20mm made of a stainless steel wire with the diameter of 1.5mm, the distance between the needle point of the needle electrode 1 and the ring electrode 2 is 10mm, the output end of the high-voltage power supply 3 is connected with the needle electrode 1 through a lead 6, airflow 8 is guided into the ring electrode 2 from the needle electrode 1 through the gas pipe 5, and the voltage circuit 4:
the first way is that the voltage circuit 4 for providing the potential to the ring electrode 2 divides the voltage applied to the needle electrode 1 by a voltage dividing circuit method and then applies the voltage to the ring electrode 2 to form a pinch electric field, and adjusts the form of the ion beam 9 by adjusting the pinch electric field according to the voltage dividing ratio;
the second way is that the voltage circuit 4 providing the ring electrode 2 with electric potential induces the electric potential with the same polarity as the ion on the ring electrode 2 to form a pinch electric field through the resistance grounding 7, and adjusts the shape of the ion beam 9 by adjusting the resistance value of the resistance to adjust the pinch electric field;
the third method is that a voltage circuit 4 for providing electric potential for the ring electrode 2 induces electric potential with the same polarity as that of ions on the ring electrode 2 through a capacitor grounding 7 to form a pinch electric field, and adjusts the shape of the ion beam 9 by adjusting the capacity of the capacitor to adjust the pinch electric field;
this generates a corona electric field around the needle electrode 1 and a pinch electric field at the ring electrode 2, which pinches the ion beam 9 generated by the needle electrode 1 without flowing into the ring electrode 2 and is output through the ring electrode 2. In the present embodiment, the voltage circuit 4 adopting the above three modes forms an electrostatic field simulation diagram of the ion generation method in which the electric field pinch is formed when the ring electrode 2 obtains a voltage peak value of 500V or more, as shown in fig. 2, fig. 3 is an electrostatic field simulation diagram of the ion generation method in the case where the ring electrode 2 is grounded, and fig. 4 is an electrostatic field simulation diagram of the ion generation method in the case where the ring electrode 2 is not grounded. Comparing the electrostatic field simulation diagrams of fig. 2, fig. 3 and fig. 4 shows that the ion generation method with electric field pinch is beneficial to ion output.
The above-mentioned embodiments only express the embodiments of the present invention, but not should be understood as the limitation of the scope of the invention patent, it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the concept of the present invention, and these all fall into the protection scope of the present invention.
Claims (9)
1. The electric field pinch ion generating device is characterized by comprising a needle electrode (1), a ring electrode (2), a high-voltage power supply (3), a voltage circuit (4) and an air pipe (5);
the needle electrode (1) and the ring electrode (2) are coaxially arranged on the central axis of the air pipe (5), the ring electrode (2) is positioned at the edge of the opening of the air pipe (5), the output end of the high-voltage power supply (3) is connected with the needle electrode (1) through a lead (6), and the ring electrode (2) is grounded through a voltage circuit (4); the air flow (8) is guided into the needle electrode (1) through the air pipe (5) and flows to the ring electrode (2), and ions are carried to pass through the ring electrode (2) and are conveyed out; the scale of the ion generating device is increased by increasing the number of the needle electrodes (1) and the ring electrodes (2).
2. An electric field pinch ion generating device as claimed in claim 1, characterised in that the relative distance between the tip of the needle electrode (1) and the annulus is in the range 1mm to 50mm, and the angle of the tip is in the range 0 to 45 degrees.
3. An electric field pinch ion generating device as claimed in claim 1, characterised in that the radius of curvature of the edge of the ring electrode (2) is more than 3 times the radius of curvature of the tip, and the inner diameter of the ring electrode (2) is in the range 5mm to 50 mm.
4. An electric field pinch ion generator as claimed in claim 1, 2 or 3, characterised in that the ring electrode (2) is coaxially positioned outside the mouth of the trachea (5).
5. An electric field pinch ion generating device according to claim 4, characterized in that the high voltage power supply (3) may be a high voltage dc power supply, including a positive polarity high voltage dc power supply or a negative polarity high voltage dc power supply, or a high voltage ac power supply; the peak value of the voltage is within the range of 5kV to 100kV, and the frequency of the voltage is within the range of 0Hz to 10 kHz.
6. An electric field pinch ion generating device as claimed in claim 5, wherein said needle electrode (1) is made of a metallic material and said ring electrode (2) is made of a metallic material or an insulating material.
7. A method for generating ions by electric field pinch realized based on the device of any of claims 1-6, characterized in that, the method is that a needle electrode (1) is arranged on the central axis of the geometric center of a ring electrode (2), a high voltage is applied on the needle electrode (1) to generate corona discharge to generate ions, a voltage circuit (4) is used for generating electric potential with the same ion polarity on the ring electrode (2) to form a pinch electric field, a gas flow (8) is introduced through a gas pipe (5) and flows from the needle electrode (1) to the ring electrode (2), and the ions generated by the corona discharge are pinched into an ion beam (9) and are emitted through the ring electrode (2); the voltage on the needle electrode (1) is used for generating corona discharge to generate ions, and the potential on the ring electrode (2) is used for generating a pinch electric field;
the voltage circuit (4) connected with the ring electrode (2) can adopt the following three modes:
the first mode is that a voltage circuit (4) for providing electric potential for the ring electrode (2) divides the voltage applied on the needle electrode (1) by a voltage dividing circuit method and then applies the divided voltage on the ring electrode (2) to form a pinch electric field, and the form of the ion beam (9) is adjusted by adjusting the pinch electric field by the voltage dividing ratio;
the second mode is that a voltage circuit (4) for providing electric potential for the ring electrode (2) is grounded through a resistor, electric potential with the same polarity as that of ions is induced on the ring electrode (2) to form a pinch electric field, and the form of the ion beam (9) is adjusted by adjusting the resistance value of the resistor to adjust the pinch electric field;
the third mode is that a voltage circuit (4) for providing electric potential to the ring electrode (2) is grounded through a capacitor, electric potential with the same polarity as that of ions is induced on the ring electrode (2) to form a pinch electric field, and the shape of the ion beam (9) is adjusted by adjusting the capacity of the capacitor to adjust the pinch electric field.
8. A method for generating electric field pinch ions according to claim 7, characterized in that the ion beam (9) configuration is adjusted by adjusting the relative position of the needle electrode (1) and the ring electrode (2).
9. A method according to claim 7, wherein ions generated by corona discharge carried by the ion wind are transported as a ion beam (9) through the ring electrode 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011102123.8A CN113013736A (en) | 2020-10-15 | 2020-10-15 | Electric field pinch ion generation method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011102123.8A CN113013736A (en) | 2020-10-15 | 2020-10-15 | Electric field pinch ion generation method and device |
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| CN113013736A true CN113013736A (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011102123.8A Pending CN113013736A (en) | 2020-10-15 | 2020-10-15 | Electric field pinch ion generation method and device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961777A (en) * | 2017-05-19 | 2017-07-18 | 北京理工大学 | One kind is without mechanical device ion blower |
| CN110430654A (en) * | 2019-06-27 | 2019-11-08 | 北京交通大学 | A kind of Review of glow plasma jet device of needle-ring structure |
| CN213584608U (en) * | 2020-10-15 | 2021-06-29 | 大连理工大学 | Electric field pinch ion generating device |
-
2020
- 2020-10-15 CN CN202011102123.8A patent/CN113013736A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961777A (en) * | 2017-05-19 | 2017-07-18 | 北京理工大学 | One kind is without mechanical device ion blower |
| CN110430654A (en) * | 2019-06-27 | 2019-11-08 | 北京交通大学 | A kind of Review of glow plasma jet device of needle-ring structure |
| CN213584608U (en) * | 2020-10-15 | 2021-06-29 | 大连理工大学 | Electric field pinch ion generating device |
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Application publication date: 20210622 |