CN114956248B - Slit microwave radiator - Google Patents
Slit microwave radiator Download PDFInfo
- Publication number
- CN114956248B CN114956248B CN202110206526.5A CN202110206526A CN114956248B CN 114956248 B CN114956248 B CN 114956248B CN 202110206526 A CN202110206526 A CN 202110206526A CN 114956248 B CN114956248 B CN 114956248B
- Authority
- CN
- China
- Prior art keywords
- slit
- metal cavity
- waveguide
- distance
- magnetron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/302—Treatment of water, waste water, or sewage by irradiation with microwaves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
The invention provides a slit radiator, which relates to the technical field of microwave heating and comprises: a metal cavity, a waveguide, a magnetron and a slit; wherein the slit is arranged on the inner side of the bottom of the metal cavity; the plurality of slits are distributed on two sides of the central line of the bottom of the metal cavity in an array mode; the waveguide is connected with the magnetron; the waveguide is also connected to the metal cavity side wall or top. That is, the invention radiates the diversity of microwaves to the target object through the slits arranged at the bottom of the metal cavity in an array, thereby improving the diversity of microwave radiation and the utilization rate of microwaves.
Description
Technical Field
The invention relates to the technical field of microwave heating, in particular to a slit microwave radiator.
Background
Industrial wastewater includes production wastewater, production sewage and cooling water, and refers to wastewater and waste liquid generated in an industrial production process, wherein the wastewater contains industrial production materials, intermediate products and byproducts which run off along with water, and pollutants generated in the production process. Industrial waste water is of various kinds and complex in composition. For example, the industrial waste water of the electrolytic salt contains mercury, the industrial waste water of the heavy metal smelting contains various metals such as lead, cadmium and the like, the industrial waste water of the electroplating contains various heavy metals such as cyanide, chromium and the like, the industrial waste water of the petroleum refining contains phenol, the industrial waste water of the pesticide manufacturing contains various pesticides and the like. Because industrial wastewater often contains various toxic substances, the polluted environment has great harm to human health, the industrial wastewater is developed and comprehensively utilized to convert the harmful substances into beneficial substances, and the industrial wastewater can be discharged after being treated by adopting corresponding purifying measures according to the pollutant components and the concentration in the wastewater.
Under the condition that water and air exist, the microwave catalyst can generate electron and electron hole pairs after absorbing electromagnetic waves, oxyhydrogen electrons required by oxidative degradation are generated through microwave catalytic reaction, the oxyhydrogen electrons and phenolic organic matters and intermediate products in a reaction system undergo oxidative degradation reaction, and finally the phenolic organic matters are mineralized into inorganic matters such as carbon dioxide and water, so that the effect of complete degradation is achieved.
However, when the microwave radiator in the prior art is used for treating wastewater, the action area of the radiator is limited, so that the microwave is not fully utilized, and the resource waste is caused.
Disclosure of Invention
The invention aims to solve the problems of the prior art, namely a slit microwave radiator, and solves the problems of resource waste caused by insufficient utilization of microwaves due to limited action area of the microwave radiator in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the embodiment of the invention is as follows:
the embodiment of the invention provides a slit microwave radiator, which is characterized by comprising the following components: a metal cavity, a waveguide, a magnetron and a slit;
wherein the slit is arranged on the inner side of the bottom of the metal cavity; the plurality of slits are distributed on two sides of the central line of the bottom of the metal cavity in an array mode; the waveguide is connected with the magnetron; the waveguide is also connected to the metal cavity side wall or top.
Optionally, the distance between the slit and the center line is a first distance.
Optionally, the length of the slit is a quarter of the first wavelength.
Optionally, the width of the slit is a second distance; wherein the first distance is different from the second distance.
Optionally, the slit at the bottom edge is a distance of a quarter of the first wavelength from the bottom outer edge.
The beneficial effects of the invention are as follows: the present invention provides a slit microwave radiator comprising: a metal cavity, a waveguide, a magnetron and a slit; wherein the slit is arranged on the inner side of the bottom of the metal cavity; the plurality of slits are distributed on two sides of the central line of the bottom of the metal cavity in an array mode; the waveguide is connected with the magnetron; the waveguide is also connected to the metal cavity side wall or top. That is, the invention radiates the diversity of microwaves to the target object through the slits arranged at the bottom of the metal cavity in an array, thereby improving the diversity of microwave radiation and the utilization rate of microwaves.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a microwave electrodeless ultraviolet lamp according to an embodiment of the invention.
Icon: a 1-metal cavity, a 2-waveguide, a 3-magnetron and a 4-slot.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
First, the nouns used in the present invention are explained:
a magnetron: is an electric vacuum device for generating microwave energy. Essentially a diode placed in a constant magnetic field. Electrons in the tube interact with the high-frequency electromagnetic field under the control of the mutually perpendicular constant magnetic field and constant electric field to convert energy obtained from the constant electric field into microwave energy, thereby achieving the purpose of generating microwave energy. Meanwhile, the magnetron is a consumable product and is easy to age and demagnetize.
Waveguide: a structure for directing electromagnetic waves.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
FIG. 1 is a schematic diagram of a microwave electrodeless ultraviolet lamp; the microwave electrodeless ultraviolet lamp provided by the embodiment of the invention is described in detail below with reference to fig. 1.
Fig. 1 is a schematic diagram of a microwave electrodeless ultraviolet lamp according to an embodiment of the present invention, as shown in fig. 1, the microwave electrodeless ultraviolet lamp includes: a metal cavity 1, a waveguide 2, a magnetron 3 and a slit 4.
Wherein the slit 4 is arranged on the inner side of the bottom of the metal cavity 1; the plurality of slits 4 are arranged on two sides of the central line of the bottom of the metal cavity 1 in an array manner; the waveguide 2 is connected with the magnetron 3; the waveguide 2 is also connected to the side wall or top of the metal cavity 1.
In the embodiment of the present invention, the magnetron 3 may be an air-cooled magnetron, one end of the air-cooled magnetron is provided with a waveguide (Wave Guide) for guiding electromagnetic waves in a directional manner, and the other end of the air-cooled magnetron is provided with a cooling fan for performing forced air cooling and heat dissipation on the air-cooled magnetron so as to prevent overheating and damage.
Optionally, the distance between the slit 4 and the central line is a first distance; the length of the slit is one quarter of the first wavelength; the width of the slit is a second distance; wherein the first distance is different from the second distance; optionally, the slit at the bottom edge is a distance of a quarter of the first wavelength from the bottom outer edge.
In the embodiment of the invention, the first wavelength is calculated based on the following formula:
wherein lambda is g For the first wavelength, λ is a microwave wavelength, a is a preset length, and a may be set according to an actual device condition.
Specifically, the first distance is the slit 4 and the center lineThe distance is a first distance, the slit is a first slit on one side of the metal cavity 1, the distance between the slits on the same side is a quarter of a first wavelength, and the distance between the adjacent slits and the central line increases in an equal difference sequence. Further, the slits on the other side of the center line are distributed in the same manner as the slits described above, so that the distribution of the plurality of slits is gradually widened outward on both sides of the center line of the bottom surface of the metal cavity 1. A second distance is the width of each slit 4, a second distance isThe length of the slit 4 is +.>
The slit radiator in the present embodiment can be used for microwave heating, and the microwave environment-friendly device is various, so that microwaves can be uniformly radiated from the slit into a larger cuboid space based on the characteristics of the microwaves.
The slit microwave radiator provided in the embodiment of the invention comprises: a metal cavity 1, a waveguide 2, a magnetron 3 and a slit 4; wherein the slit 4 is arranged on the inner side of the bottom of the metal cavity 1; the plurality of slits 4 are arranged on two sides of the central line of the bottom of the metal cavity 1 in an array manner; the waveguide 2 is connected with the magnetron 3; the waveguide 2 is also connected to the side wall or top of the metal cavity 1. That is, the invention radiates the diversity of microwaves to the target object through the slits arranged at the bottom of the metal cavity in an array, thereby improving the diversity of microwave radiation and the utilization rate of microwaves, and enabling the target object to be heated rapidly based on microwaves.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A slot microwave applicator comprising: a metal cavity, a waveguide, a magnetron and a slit;
wherein the slit is arranged on the inner side of the bottom of the metal cavity; the plurality of slits are distributed on two sides of the central line of the bottom of the metal cavity in an array mode; the waveguide is connected with the magnetron; the waveguide is also connected with the side wall or the top of the metal cavity; the length of the slit is one fourth of the first wavelength, and the first wavelength can be represented by the formulaAnd calculating, wherein the distances between the adjacent slits and the central line are increased in an arithmetic progression.
2. The slot microwave applicator of claim 1, wherein the slot is a first distance from the centerline.
3. The slot microwave applicator of claim 2, wherein the slot has a width of a second distance; wherein the first distance is different from the second distance.
4. The slot microwave applicator of claim 1 wherein the slot of the bottom edge is a quarter of the first wavelength from the bottom outer edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206526.5A CN114956248B (en) | 2021-02-24 | 2021-02-24 | Slit microwave radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206526.5A CN114956248B (en) | 2021-02-24 | 2021-02-24 | Slit microwave radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114956248A CN114956248A (en) | 2022-08-30 |
| CN114956248B true CN114956248B (en) | 2023-08-22 |
Family
ID=82972651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110206526.5A Active CN114956248B (en) | 2021-02-24 | 2021-02-24 | Slit microwave radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114956248B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116683200B (en) * | 2023-06-14 | 2023-11-21 | 扬州玛克微尔科技有限公司 | High-power waveguide slot antenna array for base cloth drying |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0209156A2 (en) * | 1985-07-19 | 1987-01-21 | Kabushiki Kaisha Toshiba | Planar antenna with patch radiators |
| RU2133933C1 (en) * | 1997-05-20 | 1999-07-27 | НИИ ядерной физики при Томском политехническом университете | Vacuum-electromagnetic wood drier |
| CN1817062A (en) * | 2003-07-01 | 2006-08-09 | 卡尔斯鲁厄研究中心股份有限公司 | Microwave resonator, modular process chain made from one such microwave resonator, operational method and objects/work pieces thermally processed by microwaves according to said method |
| CN101042990A (en) * | 2006-03-24 | 2007-09-26 | 东京毅力科创株式会社 | Plasma processing apparatus and method |
| JP2009000082A (en) * | 2007-06-25 | 2009-01-08 | Osaka Prefecture | Device for heating vegetation culture media by microwave induction heating |
| JP2009224269A (en) * | 2008-03-18 | 2009-10-01 | Chube Univ | Plasma device, plasma processing unit and plasma processing method |
| JP2013106301A (en) * | 2011-11-16 | 2013-05-30 | Mitsubishi Electric Corp | Waveguide slot array antenna device |
| CN103474785A (en) * | 2013-09-24 | 2013-12-25 | 哈尔滨工业大学 | Seam-variable large-bandwidth traveling wave seam array antenna with radiation-type load |
| CN103813498A (en) * | 2012-11-15 | 2014-05-21 | 上海明光电子科技有限公司 | Microwave heating device |
| CN205595463U (en) * | 2016-02-24 | 2016-09-21 | 中国电子科技集团公司第五十四研究所 | Waveguide gap coupling circular polarized antenna |
| CN106058476A (en) * | 2016-06-17 | 2016-10-26 | 中国人民解放军国防科学技术大学 | High-power microwave dense-slot waveguide antenna |
| CN106876901A (en) * | 2017-03-28 | 2017-06-20 | 南京大学（苏州）高新技术研究院 | A kind of 77GHz millimeter-wave automotive anti-collision radars antenna |
| CN108511861A (en) * | 2018-01-29 | 2018-09-07 | 北京交通大学 | It is a kind of to sew rectangular waveguide with circumferential direction |
| CN109195299A (en) * | 2018-10-31 | 2019-01-11 | 上海工程技术大学 | A kind of periphery wave plasma generating device |
| RU2677496C1 (en) * | 2017-12-25 | 2019-01-17 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Ultra-high frequencies antenna array with variable geometry slots |
| CN210850684U (en) * | 2019-09-16 | 2020-06-26 | 黄河三角洲京博化工研究院有限公司 | Microwave curing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3677017B2 (en) * | 2002-10-29 | 2005-07-27 | 東京エレクトロン株式会社 | Slot array antenna and plasma processing apparatus |
-
2021
- 2021-02-24 CN CN202110206526.5A patent/CN114956248B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0209156A2 (en) * | 1985-07-19 | 1987-01-21 | Kabushiki Kaisha Toshiba | Planar antenna with patch radiators |
| RU2133933C1 (en) * | 1997-05-20 | 1999-07-27 | НИИ ядерной физики при Томском политехническом университете | Vacuum-electromagnetic wood drier |
| CN1817062A (en) * | 2003-07-01 | 2006-08-09 | 卡尔斯鲁厄研究中心股份有限公司 | Microwave resonator, modular process chain made from one such microwave resonator, operational method and objects/work pieces thermally processed by microwaves according to said method |
| CN101042990A (en) * | 2006-03-24 | 2007-09-26 | 东京毅力科创株式会社 | Plasma processing apparatus and method |
| JP2009000082A (en) * | 2007-06-25 | 2009-01-08 | Osaka Prefecture | Device for heating vegetation culture media by microwave induction heating |
| JP2009224269A (en) * | 2008-03-18 | 2009-10-01 | Chube Univ | Plasma device, plasma processing unit and plasma processing method |
| JP2013106301A (en) * | 2011-11-16 | 2013-05-30 | Mitsubishi Electric Corp | Waveguide slot array antenna device |
| CN103813498A (en) * | 2012-11-15 | 2014-05-21 | 上海明光电子科技有限公司 | Microwave heating device |
| CN103474785A (en) * | 2013-09-24 | 2013-12-25 | 哈尔滨工业大学 | Seam-variable large-bandwidth traveling wave seam array antenna with radiation-type load |
| CN205595463U (en) * | 2016-02-24 | 2016-09-21 | 中国电子科技集团公司第五十四研究所 | Waveguide gap coupling circular polarized antenna |
| CN106058476A (en) * | 2016-06-17 | 2016-10-26 | 中国人民解放军国防科学技术大学 | High-power microwave dense-slot waveguide antenna |
| CN106876901A (en) * | 2017-03-28 | 2017-06-20 | 南京大学（苏州）高新技术研究院 | A kind of 77GHz millimeter-wave automotive anti-collision radars antenna |
| RU2677496C1 (en) * | 2017-12-25 | 2019-01-17 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Ultra-high frequencies antenna array with variable geometry slots |
| CN108511861A (en) * | 2018-01-29 | 2018-09-07 | 北京交通大学 | It is a kind of to sew rectangular waveguide with circumferential direction |
| CN109195299A (en) * | 2018-10-31 | 2019-01-11 | 上海工程技术大学 | A kind of periphery wave plasma generating device |
| CN210850684U (en) * | 2019-09-16 | 2020-06-26 | 黄河三角洲京博化工研究院有限公司 | Microwave curing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114956248A (en) | 2022-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114956248B (en) | Slit microwave radiator | |
| JP5107278B2 (en) | Microwave heating apparatus and heating method | |
| US3845270A (en) | Microwave heating and vapor condensing apparatus | |
| US6833537B2 (en) | Microwave system for heating voluminous elongated loads | |
| EP2648479B1 (en) | Microwave heater | |
| CN101803471A (en) | Microwave plasma generating devices and plasma torches | |
| JP2006272055A (en) | Micro-wave chemical reaction apparatus | |
| CA2666131A1 (en) | Device and method for locally producing microwave plasma | |
| EP1796830B1 (en) | Microwave chemical reactor | |
| EP2020827B1 (en) | Shielding system for microwave ovens and microwave oven using this shielding system. | |
| JP2004529480A (en) | Circulating microwave heating device | |
| CN211813554U (en) | Microwave radiator and system | |
| CN210079256U (en) | Integrated waste gas treatment equipment | |
| CN104258797A (en) | Continuous conveying type circular waveguide microwave reactor | |
| CN106642232A (en) | Microwave oven | |
| CN211813555U (en) | Microwave radiator and system | |
| CN112723463B (en) | Microwave radiator and system | |
| CN214653652U (en) | Microwave ozone generating device | |
| JP2014229532A (en) | Microwave heating apparatus | |
| CN103430274B (en) | Electron tube | |
| CN210516670U (en) | Novel electrodeless ultraviolet lamp | |
| CN108033513B (en) | Microwave radiation sewage treatment reaction system | |
| CN113543395A (en) | Leakage coaxial device for uniformly heating solid material | |
| CN114425289A (en) | Microwave reactor | |
| CN215193983U (en) | Microwave electrodeless ultraviolet lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |