CN102065591B - High-power combined microwave loop cavity - Google Patents
High-power combined microwave loop cavity Download PDFInfo
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- CN102065591B CN102065591B CN2010105456648A CN201010545664A CN102065591B CN 102065591 B CN102065591 B CN 102065591B CN 2010105456648 A CN2010105456648 A CN 2010105456648A CN 201010545664 A CN201010545664 A CN 201010545664A CN 102065591 B CN102065591 B CN 102065591B
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Abstract
The invention discloses a high-power combined microwave cavity, which comprises a cavity outer ring, a cavity inner ring and microwave sources, wherein the cavity inner ring is arranged in the cavity outer ring, and a material space is formed between the cavity inner ring and the cavity outer ring; multiple microwave sources are arranged on the outer surface of the cavity outer ring and the inner surface of the cavity inner ring; and the material in the material space is heated under the joint action of the microwave sources on the cavity outer ring and the cavity inner ring. Through the microwave cavity of the invention, the traditional mode of unidirectional and combined introduction of microwave from the outside to the inside of the cavity is changed into a bidirectional mode of proper energy accumulation of microwave on the cavity outer ring and proper diffusion of microwave on the cavity inner ring, thereby greatly improving the microwave field distribution and the heating uniformity; and with the same space and area, the combined energy of the microwave that the microwave cavity disclosed by the invention can feed back is almost doubled, and the combinable power capacity space of the traditional single microwave apparatus is greatly extended.
Description
Technical field
The present invention relates to a kind of microwave cavity, refer to a kind of microwave winding cavity of high-power Combination application especially.
Background technology
Microwave cavity be realize with microwave energy introduce and with various AD HOCs distribute in case with the interactional metal cavitg of machined material.It is a microwave energy key issue in application main body.For many years, the microwave cavity of extensive use has: be used for household microwave oven, intermittence and move the rectangular cavities of industrial microwave oven continuously; Cylindrical and oval cavity; The special-shaped cavity of polygon cavity and some other special applications etc.Their common ground is: microwave energy is to introduce energy from the unidirectional combination of the monolateral or polygon ecto-entad of cavity.Limited metal covering has limited more around, the microwave cavity limited in view of the penetration depth of microwave under the CF; The combination of bigger microwave power and realize very shortcoming such as difficulty of microwave heating uniformity has with this understanding hindered the commercial application development of this advanced technology of microwave energy greatly.On the one hand, microwave energy device fabrication producer is difficult to develop power and reaches the hundreds of kilowatts of equipment that can satisfy customer requirements again.On the other hand, the user hopes that from the requirement of industrialized development the single device microwave power is far longer than manufacturing capacity.
Summary of the invention
To the problem that prior art exists, the present invention provides a kind of existing microwave is introduced energy from the unidirectional combination of the monolateral or polygon ecto-entad of cavity, becomes from the microwave cavity of cavity outer shroud and interior ring bi-directional combination introducing energy.
For realizing above-mentioned purpose; Microwave cavity of the present invention; Comprise ring and microwave source in chamber outer shroud, the chamber, ring is arranged in the outer shroud of chamber in the chamber, and between the two, forms the material space; The inner surface of ring is provided with a plurality of microwave sources in the outer surface of chamber outer shroud and the chamber, under the microwave source acting in conjunction in chamber outer shroud and chamber on the ring material in the material space is heated.
Further, one connection or split connection between the ring in said chamber outer shroud and the chamber.
Further, weld between the ring in said chamber outer shroud and the chamber or rivet perhaps through the fixture connection.
Further, said fixture is the radially clamping cover of extension that ring inner surface is provided with outside the chamber, and the outer surface size of ring matches in this clamping cover and the said chamber, and the chamber inner ring sleeve is contained in the clamping cover also fixing.
Further, in said chamber outer shroud and the chamber ring for hollow cylindrical, its cross section be shaped as polygon, rectangle, circular or oval.
Further, have at least one side to leave the gap that holds material between said chamber outer shroud and the chamber outer shroud.
Further, be annular space between said chamber outer shroud and the chamber outer shroud.
Further, the microwave source on the ring is oppositely arranged one by one in microwave source on the outer shroud of said chamber and the chamber.
Further; The sealing of said chamber outer shroud one end, the other end is provided with can open entire hermatic door, encircles that ring seal one end is tightly connected outside an end and the chamber in said the chamber in; The other end of ring is through said hermatic door sealing in the chamber, and material gets into said material space or taking-up from having hermatic door one end.
Further, outside the said chamber ring seal one end be provided with said chamber in ring passage corresponding through hole.
Further; Outer shroud two ends, said chamber are respectively arranged with forward and backward end plate, and the length of ring and the distance between the forward and backward end plate match in the chamber, and loops welded is between forward and backward end plate in the chamber; Said front end-plate is provided with charging aperture; Said end plate is provided with discharging opening, and material gets into said material space from charging aperture, takes out from discharging opening.
Further, said microwave source comprises excitation waveguide, magnetron, magnetron power supply and control interface.
Further, ring is provided with and the corresponding microwave window of said microwave source in said chamber outer shroud and the chamber.
Further, said microwave source is worked under 2450MHz ± 50MHz and two frequency bands of 915MHz ± 15MHz.
Further, said microwave source is worked under 2450MHz ± 50MHz frequency, and the power of each said microwave source is 0.8kW, 1.0kW, 2.0kW, 3.0kW, 5.0kW, 10.0kW, 15kW or 30kW.
Further, said microwave source is worked under 915MHz ± 15MHz frequency, and the power of each said microwave source is 5.0kW, 20.0kW, 30.0kW, 75.0kW or 100.0kW.
The microwave cavity of high-power Combination application of the present invention is compared with existing microwave cavity, existing microwave is introduced energy from the unidirectional combination of the monolateral or polygon ecto-entad of cavity become from cavity outer shroud and interior ring bi-directional combination introducing energy.This change brings following advantage:
1. compare with existing all microwave cavities; Same space and area; Microwave cavity of the present invention can be presented the microwave combined energy and almost double, and the range of microwave power of separate unit microwave system combination is little of thousands of watts, tens of kilowatts, arrives hundreds of greatly so that thousands of kilowatts; 500-5000kW/2450MHz can be easy to realize, expand the power capacity capable of being combined space of existing separate unit microwave equipment greatly.
2. at CF, under the identical depth of microwave penetration condition, material thickness can double.
3. under identical microwave power level condition, hold facility area and space reduce greatly.
4. under the annular housing condition, theory analysis, numerical simulation and evidence, in view of the suitable cumulative of outer shroud microwave energy-feeding and suitably dispersing under the acting in conjunction of interior ring microwave energy-feeding, microwave field distributes and heating uniformity is greatly improved.
5. in view of above-mentioned advantage; Microwave energy industry heating, dry, thaw, synthesize, the superiority of field application such as extraction, cracking, high temperature sintering and microwave plasma more will give full play to; Application is with wideer expansion; Particularly will have huge facilitation, bring huge economic and social benefit more extensive commercial application.
Description of drawings
Fig. 1 a is the cutaway view of microwave cavity length direction in the embodiment of the invention 1;
Fig. 1 b is the cutaway view of microwave cavity cross-wise direction in the embodiment of the invention 1;
Fig. 2 a is the cutaway view of microwave cavity length direction in the embodiment of the invention 2;
Fig. 2 b is the cutaway view of microwave cavity cross-wise direction in the embodiment of the invention 2;
Fig. 3 a is the cutaway view of microwave cavity length direction in the embodiment of the invention 3;
Fig. 3 b is the cutaway view of microwave cavity cross-wise direction in the embodiment of the invention 3;
Fig. 4 a is the cutaway view of microwave cavity length direction in the embodiment of the invention 4;
Fig. 4 b is the cutaway view of microwave cavity cross-wise direction in the embodiment of the invention 4;
Fig. 5 a is the cutaway view of microwave cavity length direction in the embodiment of the invention 5;
Fig. 5 b is the cutaway view of microwave cavity cross-wise direction in the embodiment of the invention 5;
Fig. 6 a is the cutaway view of microwave cavity length direction in the embodiment of the invention 6;
Fig. 6 b is the cutaway view of microwave cavity cross-wise direction in the embodiment of the invention 6;
Fig. 7 is the composition sketch map of microwave source of the present invention.
Embodiment
Shown in Fig. 1 a and Fig. 1 b; Winding shape cavity is a rectangle in the present embodiment, comprises ring 2 and microwave source in chamber outer shroud 1, the chamber, and ring 2 is weldingly fixed in the chamber outer shroud 1 in the chamber; Form annulation material space 5 in chamber outer shroud 1 and the chamber between the ring 2; According to the inventory that is processed, ring 2 inner surface settings are provided with a plurality of microwave sources that are oppositely arranged one by one 11,21 in the outer surface of chamber outer shroud 1 and the chamber, are provided with and the corresponding microwave window 6 of microwave source on the ring 2 in chamber outer shroud 1 and the chamber; The two ends of chamber outer shroud 1 are provided with front/back cavity lid 3,4, are respectively arranged with charging aperture 31 and discharging opening 41 on the front/back cavity lid 3,4.
As shown in Figure 7, microwave source is made up of excitation waveguide 71, magnetron 72, corresponding magnetron power supply 73 and the control interface 74 of standard under CF and the power.CF comprises that applicable two frequency bands of microwave are: 2450MHz ± 50MHz and 915MHz ± 15MHz.Certain power comprises at the 2450MHz frequency band: 0.8kW, 1.0kW, 2.0kW, 3.0kW, 5.0kW, 10.0kW, 15kW and 30kW (single microwave power source).Comprise at the 915MHz frequency band: 5.0kW, 20.0kW, 30.0kW, 75.0kW and 100.0kW (single microwave power source).The quantity of microwave source according to selected microwave frequency, be processed the material amount and required microwave power size is confirmed through calculating.The range of microwave power of its combination has been expanded the power capacity capable of being combined space of existing separate unit microwave equipment greatly to thousands of watts, tens of kilowatts to thousands of kilowatts.
The size of microwave window 6, material and quantity are confirmed according to introducing big or small and specific frequency (2450MHz/915MHz) design of microwave power.The quantity of microwave window is consistent with the quantity of microwave source generally speaking, that is: the corresponding microwave window of each microwave source.In particular cases, a microwave source can design two or more microwave windows.The selection principle of microwave window, material and quantity and microwave power size and CF is to guarantee microwave power entering microwave cavity as much as possible, and window itself does not absorb or consume microwave power, promptly as far as possible to microwave.
Adopt between ring 2 and the chamber outer shroud 1 in the present embodiment lumen and be welded to connect; The clamping cover that the selectable inwall setting that also can be employed in chamber outer shroud 1 is radially extended; Ring 2 in the chamber is sleeved in the clamping cover on the chamber outer shroud 1, makes that encircling 2 in the chamber is fixed in the chamber outer shroud 1.Also can adopt other conventional mode to be connected between the ring 2 in chamber outer shroud 1 and the chamber.In addition; In chamber outer shroud 1 and the chamber between the ring 2 fixedly the time; Can not contact each other and form annulation material space 5, can guarantee that one side does not contact at least to reserve the material space yet, other face fixing mode that contacts; On the face that contacts with each other microwave source can be set, only in the chamber outer shroud 1 at place, material space and chamber, on ring 2 walls microwave source be set.In chamber outer shroud 1 and the chamber on the ring 2 position of microwave source also can arbitrarily be provided with as required, only need to guarantee that the microwave source on the chamber outer shroud 1 is arranged on its outer surface, encircle microwave source on 2 surperficial the getting final product that set within it in the chamber in.
Microwave cavity in the present embodiment is suitable for continous way processing operation working method, and by the physical dimension and the material-transporting system of at present general designing method charging aperture 31 and discharging opening 41, assurance turnover material is unimpeded to be up to state standards with microwave leakage; Equally, as be processed to expect it is liquid or gas, then need design corresponding container containing, further consider the sealing of liquid or gas etc.; According to the type structure of determined microwave winding cavity and the manufacturing material (like copper, aluminium or Stainless Steel etc.) and the manufacturing approach of size and the form that is processed material, characteristics and requirement selection microwave winding cavity and associated components, guarantee to reach designing requirement.
Microwave cavity in the present embodiment adopts the annulation material space; Make and all can arrange microwave source on the surface on the ring in chamber outer shroud and the chamber; Compare with existing microwave cavity; Under the same volume,, expanded the power capacity capable of being combined space of existing microwave equipment greatly owing in the chamber, encircle the microwave source that respective numbers also can be set.In addition,, change in suitable cumulative of chamber outer shroud microwave and chamber and encircle the bidirectional mode that microwave is suitably dispersed, make microwave field distribution and heating uniformity be greatly improved the mode of existing microwave from the unidirectional combination introducing of cavity ecto-entad energy.
Shown in Fig. 2 a and Fig. 2 b, present embodiment is just made corresponding change in the profile of microwave cavity, be about to rectangle and become circle, other structure all with enforcement 1 in identical.
Shown in Fig. 3 a and Fig. 3 b, present embodiment is just made corresponding change in the profile of microwave cavity, be about to rectangle and become polygon, other structure all with enforcement 1 in identical.
Embodiment 4
Shown in Fig. 4 a and Fig. 4 b; In order to adapt to step operation working method; Present embodiment has been cancelled charging aperture and the discharging opening that front/back cavity covers among the embodiment 1, can open entire fire door 8 in the employing of cavity one end and substitute, and charging and discharging are all carried out in fire door 8 sides; For attractive in appearance and consideration sealing property, fire door configuration design one-tenth is identical with chamber outer shroud cross sectional shape.In addition, the chamber outer shroud other end designs a through hole 32, is convenient to the microwave source in the ring in the chamber is overhauled, also can not be provided with here through hole 32 adopt with embodiment 1 in the identical set-up mode of shutting.
Embodiment 5
Shown in Fig. 5 a and Fig. 5 b, present embodiment is just made corresponding change in the profile of microwave cavity, be about to rectangle and become circle, other structure all with enforcement 4 in identical.
Embodiment 6
Shown in Fig. 6 a and Fig. 6 b, present embodiment is just made corresponding change in the profile of microwave cavity, be about to rectangle and become polygon, other structure all with enforcement 4 in identical.
It is to be noted and any distortion of making according to embodiment of the present invention all do not break away from the scope that spirit of the present invention and claim are put down in writing.
Claims (10)
1. the microwave winding cavity of a high-power Combination application; It is characterized in that comprise ring and microwave source in chamber outer shroud, the chamber, ring is hollow cylindrical in said chamber outer shroud and the chamber; Ring is arranged in the outer shroud of chamber in the chamber; And between the two, form the material space, the inner surface of ring is provided with a plurality of microwave sources in the outer surface of chamber outer shroud and the chamber, under the microwave source acting in conjunction in chamber outer shroud and chamber on the ring material in the material space is heated.
2. the microwave winding cavity of high-power Combination application as claimed in claim 1 is characterized in that, welds between the ring in said chamber outer shroud and the chamber or pass through fixture to connect.
3. the microwave winding cavity of high-power Combination application as claimed in claim 2; It is characterized in that; Said fixture is the radially clamping cover of extension that ring inner surface is provided with outside the chamber, and the outer surface size of ring matches in this clamping cover and the said chamber, and the chamber inner ring sleeve is contained in the clamping cover also fixing.
4. the microwave winding cavity of high-power Combination application as claimed in claim 1 is characterized in that, the cross section of ring is shaped as polygon, rectangle, circular or oval in said chamber outer shroud and the chamber.
5. the microwave winding cavity of high-power Combination application as claimed in claim 1 is characterized in that, has at least one side to leave the gap that holds material between said chamber outer shroud and the chamber outer shroud.
6. the microwave winding cavity of high-power Combination application as claimed in claim 5 is characterized in that, is annular space between said chamber outer shroud and the chamber outer shroud.
7. the microwave winding cavity of high-power Combination application as claimed in claim 1; It is characterized in that; Microwave source in microwave source on the outer shroud of said chamber and the chamber on the ring is oppositely arranged one by one, and said microwave source is worked under 2450MHz ± 50MHz and two frequency bands of 915MHz ± 15MHz; Said microwave source is worked under 2450MHz ± 50MHz frequency, and the power of each said microwave source is 0.8kW, 1.0kW, 2.0kW, 3.0kW, 5.0kW, 10.0kW, 15kW or 30kW; Said microwave source is worked under 915MHz ± 15MHz frequency, and the power of each said microwave source is 5.0kW, 20.0kW, 30.0kW, 75.0kW or 100.0kW.
8. the microwave winding cavity of high-power Combination application as claimed in claim 1; It is characterized in that; The sealing of said chamber outer shroud one end, the other end is provided with can open entire hermatic door, encircles that ring seal one end is tightly connected outside an end and the chamber in said the chamber in; The other end of ring is through said hermatic door sealing in the chamber, and material gets into said material space or taking-up from having hermatic door one end.
9. the microwave winding cavity of high-power Combination application as claimed in claim 8 is characterized in that, outside the said chamber ring seal one end be provided with said chamber in the corresponding through hole of hollow space that encircles.
10. the microwave winding cavity of high-power Combination application as claimed in claim 1 is characterized in that, outer shroud two ends, said chamber are respectively arranged with forward and backward end plate; The length of ring and the distance between the forward and backward end plate match in the chamber; Loops welded is between forward and backward end plate in the chamber, and said front end-plate is provided with charging aperture, and said end plate is provided with discharging opening; Material gets into said material space from charging aperture, takes out from discharging opening.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105456648A CN102065591B (en) | 2010-11-16 | 2010-11-16 | High-power combined microwave loop cavity |
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| CN2010105456648A CN102065591B (en) | 2010-11-16 | 2010-11-16 | High-power combined microwave loop cavity |
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| CN102065591B true CN102065591B (en) | 2012-11-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524758A (en) * | 2016-12-12 | 2017-03-22 | 昆明理工大学 | Multifunctional high-temperature microwave metal smelting equipment |
| CN106524759A (en) * | 2016-12-12 | 2017-03-22 | 昆明理工大学 | Microwave equipment capable of continuously smelting metal powder |
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| CN103260281B (en) * | 2013-05-31 | 2016-04-20 | 成都纽曼和瑞微波技术有限公司 | A kind of paraboloid of revolution combination microwave heating cavity |
| CN103402282A (en) * | 2013-07-31 | 2013-11-20 | 无锡柯马机械有限公司 | Microwave heating device |
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| CN2535717Y (en) * | 2001-11-06 | 2003-02-12 | 陈绍勇 | Multifunctional microwave boiler apparatus |
| CN2859408Y (en) * | 2005-10-12 | 2007-01-17 | 侯梦斌 | Revolving drum vacuum microwave processing device |
| CN201087969Y (en) * | 2007-04-06 | 2008-07-16 | 新疆大学 | Drum type microwave continuously heating mechanism for solid materiel |
| CN201928467U (en) * | 2010-11-16 | 2011-08-10 | 成都纽曼和瑞微波技术有限公司 | High-power combined microwave swinging cavity |
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Patent Citations (5)
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| EP0036362A1 (en) * | 1980-03-13 | 1981-09-23 | Joel Soulier | Apparatus for the thermal treatment of powdery or granular materials |
| CN2535717Y (en) * | 2001-11-06 | 2003-02-12 | 陈绍勇 | Multifunctional microwave boiler apparatus |
| CN2859408Y (en) * | 2005-10-12 | 2007-01-17 | 侯梦斌 | Revolving drum vacuum microwave processing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524758A (en) * | 2016-12-12 | 2017-03-22 | 昆明理工大学 | Multifunctional high-temperature microwave metal smelting equipment |
| CN106524759A (en) * | 2016-12-12 | 2017-03-22 | 昆明理工大学 | Microwave equipment capable of continuously smelting metal powder |
| CN106524759B (en) * | 2016-12-12 | 2019-01-25 | 昆明理工大学 | A kind of microwave equipment of continuous smelting metal powder |
| CN106524758B (en) * | 2016-12-12 | 2019-02-26 | 昆明理工大学 | A kind of multifunctional high-temperature microwave apparatus for melting metal |
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