CN114570199A - High-energy electron beam generating device - Google Patents

High-energy electron beam generating device Download PDF

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Publication number
CN114570199A
CN114570199A CN202210352484.0A CN202210352484A CN114570199A CN 114570199 A CN114570199 A CN 114570199A CN 202210352484 A CN202210352484 A CN 202210352484A CN 114570199 A CN114570199 A CN 114570199A
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cathode
hole
anode
electron beam
cavity
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印朝晖
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Beijing Aerospace Fangda Technology Co ltd
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Beijing Aerospace Fangda Technology Co ltd
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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
    • B01D53/34—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
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
    • 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
    • B01D53/007—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 irradiation
    • 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
    • B01D53/323—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 by electrostatic effects or by high-voltage electric fields
    • 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
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • 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
    • B01D2259/81—X-rays
    • 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
    • B01D2259/812—Electrons
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention belongs to the field of environmental pollution control engineering. The high-energy electron beam generating device is characterized by comprising a power supply, an insulator, an anode support, an outlet cavity, a cathode, a collecting device, an inlet cavity and a shell; the cathode is positioned in the shell, the lower end of the cathode is fixedly connected with the upper end of the inlet cavity through a fixing device, and the upper end of the cathode is fixedly connected with the lower end of the outlet cavity; the lower end part of the shell is fixedly connected with the fixing device, and the upper end part of the shell is fixedly connected with the lower end of the outlet cavity; the upper end part of the anode is connected with the anode bracket, and the middle lower part of the anode passes through the fourth through hole and the third through hole and then is positioned near the cathode; the anode is connected with the outlet cavity through an insulator, and the insulator is inserted into the fourth through hole; the upper end of the anode is connected with the anode of the power supply through a power line, and the cathode is connected with the cathode of the power supply through a power line. The device can be used for flue gas treatment and has the characteristic of good treatment effect.

Description

High-energy electron beam generating device
Technical Field
The invention belongs to the field of environmental pollution control engineering, and particularly relates to a high-energy electron beam generating device for flue gas treatment.
Background
For over a hundred years, the technical characteristics of traditional electric dust removal have been widely used. The electric dust removal utilizes the principle of electrostatic adsorption of fine particles, and dust-containing gas is charged when passing through an electric field of the electric dust removal, so that the dust-containing gas is collected by a dust collecting plate. However, the traditional electric dust removal has the defects of low energy saving, low trapping efficiency, easy scaling, easy fire initiation and too many similar news. Therefore, a device is urgently needed to solve the problem of the conventional electric dust removal.
Disclosure of Invention
The invention aims to provide a high-energy electron beam generating device which can be used for flue gas treatment and has the characteristic of good treatment effect.
In order to achieve the purpose, the invention adopts the technical scheme that: the high-energy electron beam generating device is characterized by comprising a power supply 1, an insulator 4, an anode 5, an anode support 6, an outlet cavity 7, a cathode 9, a collecting device 11, an inlet cavity 13 and a shell 20; an outlet cavity 15 is formed in the outlet cavity 7, an outlet 8 is formed in the right side face of the outlet cavity 7, a fourth through hole 22 is formed in the upper end face of the outlet cavity 7, a third through hole 21 is formed in the lower end face of the outlet cavity 7, the outlet 8, the fourth through hole 22 and the third through hole 21 are communicated with the outlet cavity 15 of the outlet cavity 7, and the fourth through hole 22 is located right above the third through hole 21;
the right side surface of the inlet cavity 13 is provided with an inlet 10, the upper end surface of the inlet cavity 13 is provided with a second through hole 19, the inlet 10 and the second through hole 19 are both communicated with the inlet cavity of the inlet cavity 13, and the lower end of the inlet cavity 13 is an open end; the lower end of the inlet cavity 13 is fixedly connected with the collecting device 11;
the cathode 9 is positioned in the shell 20, the lower end of the cathode 9 is fixedly connected with the upper end of the inlet cavity 13 through a fixing device 14, a first through hole 17 is formed in the fixing device 14, and the first through hole 17 is communicated with a second through hole 19 in the inlet cavity 13; the upper end of the cathode 9 is fixedly connected with the lower end of the outlet cavity 7; the lower end part of the shell 20 is fixedly connected with the fixing device 14, and the upper end part of the shell 20 is fixedly connected with the lower end of the outlet cavity 7;
the upper end part of the anode 5 is connected with the anode bracket 6, and the middle lower part of the anode 5 passes through the fourth through hole 22 and the third through hole 21 and then is positioned near the cathode 9; the anode 5 is connected with the outlet cavity 7 through the insulator 4, and the insulator 4 is inserted into the fourth through hole 22; the upper end of the anode 5 is connected with the positive pole of the power supply 1 by a power line 2, and the cathode 9 is connected with the negative pole of the power supply 1 by a power line.
The number of the cathodes 9 is 1-100, and the number of the anodes corresponds to that of the cathodes.
The distance between the anode 5 and the cathode 9 is 2-60 cm.
The anode is made of a conductive material; the cathode is made of metal or alloy.
The cathode is plate-shaped, tubular or honeycomb-shaped.
The cathode 9 is tubular, the upper end of the pipe hole 16 of the cathode 9 is communicated with the third through hole 21, the lower end of the pipe hole 16 of the cathode 9 is communicated with the first through hole 17, and the middle lower part of the anode 5 penetrates into the pipe hole 16 of the cathode 9.
The power supply is a high-frequency high-voltage power supply, a high-voltage variable-frequency power supply or a super-audio frequency high-voltage power supply, the voltage of the power supply is 0.4 kilovolt to 200 kilovolt, and the frequency is 3000Hz-30 MHz.
And a current regulator 3 is installed on the power line 2, and the current regulator is a programmable current regulator.
The insulator is made of glass, porcelain bottles, nylon columns, silica gel or tetrafluoroethylene insulating columns and the like.
The housing 20 is grounded by a ground line.
The upper end of the cathode 9 can also be fixedly connected with the lower end of the outlet cavity 7 by a fixing device.
The invention has the beneficial effects that: the device can be used for flue gas treatment and has the characteristic of good treatment effect.
Drawings
FIG. 1 is a schematic structural diagram (external view) of a high-energy electron beam generating device according to the present invention.
Fig. 2 is a cross-sectional view of a high-energy electron beam generating device according to the present invention.
Fig. 3 is a schematic structural diagram of an anode in embodiment 1 of the present invention.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a schematic structural diagram of an anode in embodiment 2 of the present invention.
Fig. 6 is a top view of fig. 5.
FIG. 7 is a schematic diagram of an application of the high-energy electron beam generating device of the present invention.
In the figure: 1-power supply, 2-power line, 3-current stabilizer, 4-insulator, 5-anode, 6-anode support, 7-outlet cavity, 8-outlet, 9-cathode, 10-inlet, 11-collecting device, 12-collected material outlet, 13-inlet cavity, 14-fixing device, 15-outlet cavity, 16-pipe hole, 17-first through hole, 18-collecting cavity, 19-second through hole, 20-shell, 21-third through hole, 22-fourth through hole, 23-electrode spike, 24-anode rod, upper end of 25-anode, 26-SNCR denitration device, 27-SCR denitration device, 28-first pipeline, 29-bag dust collector, 30-second pipeline, 31-a fan, 32-a wet desulphurization device, 33-a third pipeline, 34-a high-energy electron beam generating device, 35-a fourth pipeline and 36-a boiler.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, 2, 3, and 4, the high-energy electron beam generating device includes a power source 1, an insulator 4, an anode 5, an anode holder 6, an outlet chamber 7, a cathode 9, a collecting device 11, an inlet chamber 13, and a housing 20; an outlet cavity 15 is arranged in the outlet cavity 7, an outlet 8 is arranged on the right side surface of the outlet cavity 7 (for convenience of description, the left side is left, and the right side is right in fig. 2), a fourth through hole 22 is arranged on the upper end surface of the outlet cavity 7, a third through hole 21 is arranged on the lower end surface of the outlet cavity 7, the outlet 8, the fourth through hole 22 and the third through hole 21 are all communicated with the outlet cavity 15 of the outlet cavity 7, and the fourth through hole 22 is positioned right above the third through hole 21 (when the number of anodes 5 is multiple, the fourth through hole 22 and the third through hole 21 are correspondingly multiple in groups);
the right side surface of the inlet cavity 13 is provided with an inlet 10 (an inlet cavity is arranged in the inlet cavity 13), the upper end surface of the inlet cavity 13 is provided with a second through hole 19, the inlet 10 and the second through hole 19 are both communicated with the inlet cavity of the inlet cavity 13, and the lower end of the inlet cavity 13 is an opening end; the lower end of the inlet cavity 13 is fixedly connected with a collecting device (such as a collecting hopper) 11 (the lower port of the inlet cavity 13 is communicated with a collecting cavity 18 of the collecting device 11, the lower end part of the collecting device 11 is provided with a collected material outlet 12, and a control valve is arranged at the collected material outlet 12);
the cathodes 9 are positioned in the shell 20 (all the cathodes 9 are positioned in the shell 20), the lower ends of the cathodes 9 are fixedly connected (for example, welded or bolted) with the upper end of the inlet cavity 13 by the fixing device 14, the fixing device 14 is provided with first through holes 17, and the first through holes 17 are communicated with second through holes 19 on the inlet cavity 13; the upper end of the cathode 9 is fixedly connected (such as welded or bolted) with the lower end of the outlet cavity 7; the lower end of the outer shell 20 is fixedly connected with the fixing device 14 (such as welded or bolted connection; the outer shell 20 of the embodiment is in a square tube shape, the outer shell 20 is positioned between the outlet cavity 7 and the inlet cavity 13), and the upper end of the outer shell 20 is fixedly connected with the lower end of the outlet cavity 7 (such as welded or bolted connection; all the first through holes 17 and the third through holes 21 are positioned in the outer shell 20 to form a passage between the inlet and the outlet);
the upper end 25 of the anode is connected with the anode support 6 (the anode support 6 can be fixed on the outlet cavity 7 or independently arranged on the foundation), the middle lower part of the anode 5 passes through the fourth through hole 22 and the third through hole 21 and then is positioned near the cathode 9 (the distance between the anode 5 and the cathode 9 is 2-60 cm; the middle lower part of the anode 5 is positioned in the shell 20; the lower end of the anode 5 can also be fixedly connected with the fixing device 14 by an insulator); the anode 5 is connected with the outlet cavity 7 through the insulator 4, and the insulator 4 is inserted into the fourth through hole 22; the upper end of the anode 5 is connected with the positive pole of the power supply 1 by a power line 2 (the power line 2 is provided with a current stabilizer 3), and the cathode 9 is connected with the negative pole of the power supply 1 by a power line (the power line is not shown in the connection in fig. 2).
The number of the cathodes 9 is 1-100, the number of the anodes is the number corresponding to the number of the cathodes { 16 cathodes are adopted in the embodiment, and the cross section of the shell 20 is square (the shell 20 is a square cylinder); the number of the fourth through holes 22, the number of the third through holes 21, and the number of the insulators 4 are all the same }.
The distance between the anode 5 and the cathode 9 is 2-60cm (the distance between the electrode sharp spine of the anode 5 closest to the cathode 9 and the cathode 9).
The anode is made of a conductive material (such as metal, alloy or graphene). The cathode is made of metal (metal plate) or alloy.
The cathode is in the shape of a plate, a tube (circular tube, square tube) or a honeycomb (in this embodiment 1, a tubular cathode is used).
In this embodiment, the cathode 9 is tubular, the upper end of the tube hole 16 of the cathode 9 is communicated with the third through hole 21, the lower end of the tube hole 16 of the cathode 9 is communicated with the first through hole 17, and the middle lower part of the anode 5 penetrates into the tube hole 16 of the cathode 9.
The fixing device 14 is plate-shaped (the plate-shaped fixing device is provided with 2-20 threaded connection holes for connection).
The power supply is a high-frequency high-voltage power supply, a high-voltage variable-frequency power supply or a super-audio frequency high-voltage power supply (the power supply controls one anode 5 and one cathode 9, and can also control a plurality of anodes 5 and a plurality of cathodes 9), the voltage of the power supply is 0.4 kilovolt to 200 kilovolt, and the frequency is 3000Hz-30MHz (megahertz).
And a current stabilizer 3 is arranged on the power line 2. Further, the current regulator is a programmable current regulator.
The insulator (or the insulating device) is made of glass, a porcelain bottle, a nylon column, silica gel or a tetrafluoroethylene insulating column and the like. The insulator makes it possible to withstand the large potential difference that exists between the two electrodes.
The housing 20 is grounded by a ground line.
The upper end of the cathode 9 can also be fixedly connected with the lower end of the outlet cavity 7 by a fixing device.
The anode 5 is composed of an anode rod 24 and electrode spikes (discharge needles) 23, the upper end of the anode rod 24 is a connecting part for connection (for example, the upper end of the anode rod 24 is provided with an external thread), the middle lower part of the anode rod 24 is provided with a plurality of electrode spikes 23 (the number of the electrode spikes is 10-1000; the electrode spikes 23 can be integrated with the anode rod 24 or welded with the anode rod 24; the anode rod 24 is tubular, the diameter of the tube is 28mm), the electrode spikes 23 are spirally arranged on the anode rod 24 in a spiral lifting manner, the distance between adjacent electrode spikes 23 is 10-50mm, and the spiral distance a is 10-40mm (the height a of the up-down distance is shown in figure 3).
The electrode spikes (discharge needles) 23 are conical, the taper is 5-45 degrees, and the height of the electrode spikes is 10-30 mm.
Example 2
As shown in fig. 1, 2, 5 and 6, the anode is substantially the same as in example 1 except for the anode. The anode 5 consists of an anode rod body 24 and electrode spike groups, the upper end part of the anode rod body 24 is a connecting part for connection (for example, the upper end part of the anode rod body 24 is provided with an external thread), the middle lower part of the anode rod body 24 is provided with a plurality of electrode spike groups (the plurality of electrode spike groups are 3-30 electrode spike groups), the plurality of electrode spike groups are vertically arranged on the anode rod body 24 at intervals (arranged in parallel), and the distance c between every two adjacent electrode spike groups is 10-40 mm; each electrode spike group consists of a plurality of electrode spikes 23 (the number of the electrode spikes is 10-200; the electrode spikes 23 can be integrated with the anode rod body 24, the anode rod body 24 is tubular, the diameter of the tube is 28mm), and the distance b between every two adjacent electrode spikes 23 in each electrode spike group is 10-50mm (as shown in figure 5).
The anode is made of graphene, and the anode is also called a graphene electron beam electrode rod.
Use of: the high-energy electron beam generating device can be used independently, and can also be used together with other environmental pollution treatment equipment in a combined way.
1. Used alone. An inlet 10 of the high-energy electron beam generating device is connected with flue gas to be treated, an outlet 8 of the high-energy electron beam generating device is connected with a discharge pipeline, a power supply 1 is turned on, the flue gas passes between an anode 5 and a cathode 9, high-frequency photons excite a cathode (a metal polar plate) to generate a large amount of particles and electron flow, the particle flow reacts with the dust-containing gas through the large amount of electron flow to knock off dust or destroy the molecular chains of the dust-containing gas, the gas is decomposed and cracked quickly, water vapor is ionized into hydrogen ions and oxygen anions to form hydroxyl free radicals and participate in the reaction of the gas, pollutants in the dust fall into a collecting device 11, and the purified gas is discharged from the outlet 8.
2. When the high-energy electron beam generating device is combined with other environmental pollution treatment equipment for use (as shown in fig. 7), the electron beam flue gas whitening and dedusting integrated treatment system comprises an SNCR (selective non-catalytic reduction) denitration device 26, an SCR denitration device 27, a first pipeline 28, a bag-type dust remover 29, a second pipeline 30, a fan 31, a wet desulphurization device 32, a third pipeline 33, a high-energy electron beam generating device 34 and a fourth pipeline 35; the input end of the SNCR denitration device (or called SNCR denitration device) 26 is connected with the flue gas output end of the boiler 36, the output end of the SNCR denitration device 26 is connected with the input end of the SCR denitration device (or called SCR denitration device) 27, the output end of the SCR denitration device 27 is connected with the input end of the bag-type dust remover 29 through the first pipeline 28, the output end of the bag-type dust remover 29 is connected with the input end of the wet desulphurization device 32 through the second pipeline 30, the second pipeline 30 is provided with the fan 31, the output end of the wet desulphurization device 32 is connected with the inlet of the high-energy electron beam generating device 34 through the third pipeline 33, and the outlet of the high-energy electron beam generating device 34 is connected with the inlet of the chimney through the fourth pipeline 35.
As shown in fig. 7, the electron beam smoke whitening and dedusting integrated treatment process includes the following steps:
1) preparing an electron beam smoke whitening and dedusting integrated treatment system;
2) flue gas output by the boiler sequentially enters an SNCR (selective non-catalytic reduction) denitration device and an SCR denitration device for denitration treatment; the flue gas after denitration treatment is sent into a bag-type dust remover 29 for dust removal through a first pipeline 28, and the flue gas after dust removal is sent into a wet desulphurization device 32 for desulphurization treatment through a second pipeline 30 and a fan 31; the flue gas after desulfurization treatment is sent to a high-energy electron beam generating device 34 through a third pipeline 33 for treatment (further desulfurization, denitration and dust removal, whitening and aerosol PM2.5 removal), and the treated gas is sent to a chimney through a fourth pipeline 35 for emission.
The electron beam whitening and dedusting integrated technical process comprises the following steps:
1) discharging in the high-energy electron beam generating device to form a high-energy electron beam;
2) electron beam and H in flue gas being treated2Molecular contact of O, H2O molecules obtain energy to generate free radical active factors with extremely strong oxidizability, and meanwhile, high energy contained in the electron beams can break high molecular weight dust to form low molecular weight compounds;
3) the electron beam contacts with aerosol PM2.5 in the treated smoke, so that after the aerosol PM2.5 is soaked, the original solid-gas interface is replaced by a solid-liquid interface to form a diffusion double electric layer;
4) the modified aerosol PM2.5 of the double electric layers has electric property, generates electrophoresis in an electric field and is captured, and the aerosol PM2.5 and part of H in the flue gas after wet desulphurization are removed by the electron beam flue gas whitening and dedusting technology2O molecules, so that the smoke has no condensation nucleus and the phenomenon of 'wet smoke plume' can not occur.
5) Simultaneously free radicals rapidly oxidize SO2And NOx, which is absorbed by water to generate sulfuric acid and nitric acid, and is desulfurized and denitrated simultaneously in a set of equipment (ammonia is supplemented to the system to generate ammonium salt, or lime is supplemented).
The design is designed aiming at the problem that flue gas after wet desulphurization carries a large amount of saturated steam and aerosol PM2.5, and water vapor and PM2.5 in the flue gas can be effectively removed.
The effect is as follows: the smoke is discharged into particulate matter with the discharge concentration of less than 5mg/Nm after passing through a high-energy electron beam generating device (or called a smoke treatment device)3，SO2Discharge concentration < 15mg/Nm3NOx emission concentration < 30mg/Nm3And no 'wet smoke plume' phenomenon exists. The invention has the characteristics of whitening, removing PM2.5 of aerosol, and good effects of desulfurization, denitration and dust removal.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
The above description is intended to illustrate the preferred embodiments of the present invention, but the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. The high-energy electron beam generating device is characterized by comprising a power supply (1), an insulator (4), an anode (5), an anode support (6), an outlet cavity (7), a cathode (9), a collecting device (11), an inlet cavity (13) and a shell (20); an outlet cavity (15) is formed in the outlet cavity (7), an outlet (8) is formed in the right side face of the outlet cavity (7), a fourth through hole (22) is formed in the upper end face of the outlet cavity (7), a third through hole (21) is formed in the lower end face of the outlet cavity (7), the outlet (8), the fourth through hole (22) and the third through hole (21) are communicated with the outlet cavity (15) of the outlet cavity (7), and the fourth through hole (22) is located right above the third through hole (21);
an inlet (10) is formed in the right side face of the inlet cavity (13), a second through hole (19) is formed in the upper end face of the inlet cavity (13), the inlet (10) and the second through hole (19) are communicated with the inlet cavity of the inlet cavity (13), and the lower end of the inlet cavity (13) is an open end; the lower end of the inlet cavity (13) is fixedly connected with the collecting device (11);
the cathode (9) is positioned in the shell (20), the lower end of the cathode (9) is fixedly connected with the upper end of the inlet cavity (13) through a fixing device (14), a first through hole (17) is formed in the fixing device (14), and the first through hole (17) is communicated with a second through hole (19) in the inlet cavity (13); the upper end of the cathode (9) is fixedly connected with the lower end of the outlet cavity (7); the lower end part of the shell (20) is fixedly connected with the fixing device (14), and the upper end part of the shell (20) is fixedly connected with the lower end of the outlet cavity (7);
the upper end part of the anode (5) is connected with the anode support (6), and the middle lower part of the anode (5) passes through the fourth through hole (22) and the third through hole (21) and then is positioned near the cathode (9); the anode (5) is connected with the outlet cavity (7) through the insulator (4), and the insulator (4) is inserted into the fourth through hole (22); the upper end of the anode (5) is connected with the anode of the power supply (1) through a power line (2), and the cathode (9) is connected with the cathode of the power supply (1) through a power line.
2. The high-energy electron beam generating apparatus according to claim 1, wherein: the number of the cathodes (9) is 1-100, and the number of the anodes is the number corresponding to the number of the cathodes.
3. The high-energy electron beam generating apparatus according to claim 1, wherein: the distance between the anode (5) and the cathode (9) is 2-60 cm.
4. The high-energy electron beam generating apparatus according to claim 1, wherein: the anode is made of a conductive material; the cathode is made of metal or alloy.
5. The high-energy electron beam generating apparatus according to claim 1 or 2, wherein: the cathode is plate-shaped, tubular or honeycomb-shaped.
6. The high-energy electron beam generating apparatus according to claim 1 or 5, wherein: the cathode (9) is tubular, the upper end of the pipe hole (16) of the cathode (9) is communicated with the third through hole (21), the lower end of the pipe hole (16) of the cathode (9) is communicated with the first through hole (17), and the middle lower part of the anode (5) penetrates into the pipe hole (16) of the cathode (9).
7. The high-energy electron beam generating apparatus according to claim 1, wherein: the power supply is a high-frequency high-voltage power supply, a high-voltage variable-frequency power supply or a super-audio frequency high-voltage power supply, the voltage of the power supply is 0.4 kilovolt to 200 kilovolt, and the frequency is 3000Hz-30 MHz.
8. The high-energy electron beam generating apparatus according to claim 1, wherein: and a current stabilizer (3) is installed on the power line (2), and the current stabilizer is a programmable current stabilizer.
9. The high-energy electron beam generating apparatus according to claim 1, wherein: the insulator is made of glass, porcelain bottles, nylon columns, silica gel or tetrafluoroethylene insulating columns and the like.
10. The high-energy electron beam generating apparatus according to claim 1, wherein: the upper end of the cathode (9) is fixedly connected with the lower end of the outlet cavity (7) by a fixing device.
CN202210352484.0A 2021-08-05 2022-04-05 High-energy electron beam generating device Pending CN114570199A (en)

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GB1500154A (en) * 1974-08-29 1978-02-08 Maxwell Lab Method and apparatus for precipitating particles from a gaseous effluent
CN102935326A (en) * 2012-11-10 2013-02-20 大连理工大学 Array-type narrow-gap coaxial streamer discharge reactor for gaseous pollutant pretreatment
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