CN101568208A - Microwave and heating element combined heating type heating chamber and manufacturing method thereof - Google Patents
Microwave and heating element combined heating type heating chamber and manufacturing method thereof Download PDFInfo
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- CN101568208A CN101568208A CNA2009100010676A CN200910001067A CN101568208A CN 101568208 A CN101568208 A CN 101568208A CN A2009100010676 A CNA2009100010676 A CN A2009100010676A CN 200910001067 A CN200910001067 A CN 200910001067A CN 101568208 A CN101568208 A CN 101568208A
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Abstract
The invention discloses a microwave and heating element combined heating type heating chamber and a manufacturing method thereof, which belong to the technical field of microwave heating. The microwave and heating element combined heating type heating chamber consists of wave absorbing and heating elements, a heating element carrying plate and a thermal insulation layer with excellent wave-transmitting property. The manufacturing method comprises the steps of embedding and fixing the wave absorbing and heating elements of the same shape and size on the heating element carrying plate and coating the thermal insulation layer on the sides, against the heating element carrying plate, of the heating elements. The microwave and heating element combined heating type heating chamber smartly realizes mixed heating in two modes of microwave heating and heating element heating and allows the heating powers of the two modes to adjust automatically or manually, thereby overcoming the drawbacks of pure microwave heating and pure conventional heating element heating, having the advantages of large heating area, high thermal efficiency (internal and external synchronous material heating), even heating, low manufacturing cost, long service life, easy replacement, and convenient maintenance and repair, and realizing super-fast and ultra-temperature heating, excellent energy conservation effect and remarkable economic benefits.
Description
Technical field
The present invention is a kind of heating chamber, specifically relates to a kind of microwave and heating element combined heating type heating chamber and preparation method thereof, and it belongs to the microwave heating technique field.
Background technology
At present, microwave energy more and more has been applied to the heating field as a kind of novel thermal source form, for example: food, papermaking, timber, sintering or the like.The microwave that actual heating is used normally frequency is the electromagnetic wave of 915MHz and 2450MHz.The simple principle of microwave heating is that the polarization of its alternating electromagnetic field is arranged the free charge of material internal again and the accent repeatedly of dipole revolves, thereby produce powerful vibration and friction, the Conversion of energy of alternating electromagnetic field is the heat energy in the medium in this microprocess, cause medium temperature to raise, therefore microwave heating is dielectric material own loss energy of electromagnetic field and self-heating, it does not need heat conduction from outward appearance to inner essence, so microwave heating is interior heating.
Yet, the ability of material absorbing microwave energy is relevant with the complex dielectric permittivity of this material, be that fissipation factor is big more, the ability that absorbs microwave is strong more, so microwave heating has strong selectivity, that is: microwave is suitable for heating microwave absorbing material, as: SiC, carbon, ferrite, water, AlN, part semiconductor pottery and cermet, metal fine powder, or the like, microwave then can not directly heat block metal material, because the metallic reflection microwave; Microwave also is difficult to heat a lot of insulating materials, for example: glass, plastics (as: polyethylene, polystyrene etc.), quartz and part ceramic material, because these materials are " transparent " to microwave, they do not absorb or less absorption microwave energy; Microwave more is difficult to heat most gas and liquid, because they are higher to " transparency " of microwave, therefore the efficiency of heating surface for these material microwaves can be very low.
Traditional mode of heating generally is by heater element resistance wire or Elema or Si-Mo rod heating, and then come the indirect material by the heat transmission, so belong to outer heating, this mode of heating does not generally have selectivity to material to be heated, but has following deficiency: the heating area of (1) heater element is little, the heat efficiency is low, firing rate is slow, heating uniformity is poor; (2) resistance wire, Elema and Si-Mo rod etc. fracture easily, so useful life is lower; (3) heating chamber is a fixed form, is difficult to change, and therefore can run into the too big problem of heating chamber size when heating the small size material, that is: low load with strong power, thus cause energy waste.
Summary of the invention
The objective of the invention is to overcome the technical deficiency of above-mentioned microwave heating and the heating of traditional heater element, a kind of microwave and heating element combined heating type heating chamber and preparation method thereof are provided.The deficiency that has overcome pure microwave heating and pure traditional heater element heating of success of the present invention, combine the advantage of the two, it is big not only to have heating area, heat efficiency height, homogeneous heating, simple in structure, low cost of manufacture, life-span is long, changes easily, is convenient to the advantage of safeguarding and keeping in repair, and it is good to belong to untouchable heating safety, can heat any material that comprises metal material, can realize the heating of supper-fast (programming rate can reach more than 1000 ℃/minute) and superhigh temperature (more than 1600 ℃), and can select to change the heating chamber that uses different size according to the size of material to be heated, therefore energy-saving effect is very outstanding, remarkable in economical benefits both had been suitable for the laboratory heating and had used, and was suitable for the extensive heating in the industrial production again.
The present invention realizes above-mentioned purpose by following technical solution: microwave of the present invention and heating element combined heating type heating chamber are formed by inhaling ripple heating, the sub-support plate of heating and the saturating good insulating of ripple, the sub-support plate surface distributed of wherein generating heat a large amount of blind holes or through hole, and the hole is identical with the shape and size of inhaling ripple heating.The heating principle of microwave of the present invention and heating element combined heating type heating chamber is: heating chamber of the present invention is placed in the microwave field, the microwave that sends from microwave generator passes the good insulating of wave, the subsequent section microwave is directly inhaled sub absorption of ripple heating and is caused its rapid heating up, all the other microwaves will be passage with the space of inhaling between ripple heating mainly then, the material to be heated that passes the sub-support plate of heating comparatively smoothly and be heated in the chamber absorbs, and cause material to realize self-heating, meanwhile, the heat that suction ripple heating on the sub-support plate of generating heat sends also can add thermal material by the heat transmission, the heating chamber temperature inside also will raise rapidly simultaneously, and finally realize heating purposes.Its power conversion, transmission and material heating process are: " electric energy → microwave energy → heat energy → heat transmission → material heating " and/or " electric energy → microwave energy → material heating ".The present invention has realized the Hybrid Heating of microwave heating with heating (that is: heater element) heating dual mode very cleverly, and the adjusting of microwave heating and heating heating proportion in total heating power both can be carried out intelligent automatic adjusting, can carry out manual adjustment easily again.
Described intelligent automatic adjusting is meant: (1) is for same heating chamber, when material absorbing property to be heated is relatively poor, can not by material fully be absorbed through the microwave that the sub-support plate of heating enters heating chamber the first time, but in heating chamber through repeatedly the reflection or transmission, and by sub absorption of suction ripple heating, inhale ripple heating in this case as main thermal source, the heat that it sends causes heating chamber and material to heat up rapidly by the heat transmission, thus this moment microwave directly to add the effect of thermal material less.But rising along with temperature of charge, generally speaking the absorbing property of material also will improve, so rising along with temperature of charge, material can more absorb microwave and self-heating, strengthen gradually so microwave directly adds the effect of thermal material thereupon, inhale ripple heating and then reduce relatively gradually by the effect that the heat transmission adds thermal material.(2) for same heating chamber, when material absorbing property to be heated is better, seeing through for the first time the microwave that the sub-support plate of heating enters heating chamber will directly be absorbed and self-heating by material to a great extent, microwave directly adds thermal material and inhales ripple heating and adds thermal material by the heat transmission and will concur in this case, and both power proportion will depend on and add height (that is: thickness), density and the spacing that adds heater on the heater support plate.Equally, along with the rising of inhaling ripple heating and temperature of charge, the absorbing property of the two also will take place relatively to change, so along with the rising of temperature, microwave directly adds the effect of thermal material and inhales effect that ripple heating adds thermal material by the heat transmission and also can take place to change and regulate accordingly.
Described manual adjustment is meant: for a kind of material, microwave directly adds thermal material and inhales ripple heating and adds the two shared ratio in total heating power (specially referring to effective gross power that material absorbs) of thermal material by the heat transmission and all can change in the scope 0～100%, but the two power sum is 100%, the regulation and control of its ratio can realize by changing heating son height (that is: thickness) and its ratio of area occupied on support plate, that is: heating height and its area occupied on support plate are big more, the direct-fired power proportion of microwave is more little, and the power proportion that heating transmits heating by heat is then big more.Heating mainly is by changing spacing, quantity, the shape and size of heating on the support plate in the adjusting of area occupied ratio on its support plate.Under the situation that pitch of holes is fixed on generate heat sub-shape, size and the support plate, heating can be realized by changing the sub quantity of generating heat on the support plate in the adjusting of area occupied ratio on its support plate.When being heated sub-support plate fully, surrounds whole heating chamber, simultaneously add the heater spacing with respect to enough little for the microwave wavelength and add the heater height for the penetration capacity of microwave enough greatly the time on the support plate, material will absorb less than microwave, its heating will place one's entire reliance upon, and the heating of suction ripple is sub generates heat and hot the transmission, inhale ripple heating this moment the power contribution of material heating is accounted for 100% of effective gross power that material absorbs, its power conversion, transmission and material heating process are: " electric energy → microwave energy → heat energy → heat transmission → material heats ".Add heater seldom even when not having when inhaling ripple on the support plate, the heating of material will be mainly by direct absorption microwave and self-heating.
Described suction ripple heating is can the efficient absorption microwave and the SiC powder, C powder, CuO powder, the Fe that generate heat
3O
4The mixture of one or more in powder and the AlN powder.
The sub-support plate of described heating is ceramic beaverboard or ceramic wafer, preferred good ceramic beaverboard or the ceramic wafer of microwave penetrating, for example: aluminosilicate fiberboard, quartz wool sheet, high alumina silicate fiber plate, contain chromium (Cr
2O
3) aluminosilicate fiberboard, contain zirconium (ZrO
2) aluminosilicate fiberboard, polycrystalline mullite fibre plate, polycrystalline alumina fiber plate etc.
Described insulating is good ceramic fibre cotton, plate or a ceramic wafer of microwave penetrating, for example: aluminosilicate fiber cotton and/or plate, quartz fibre cotton and/or plate, high alumina silicate fiber cotton and/or plate, contain chromium (Cr
2O
3) aluminosilicate fiber cotton and/or plate, contain zirconium (ZrO
2) aluminosilicate fiber cotton and/or plate, polycrystalline mullite fibre cotton and/or plate, polycrystalline alumina fiber cotton and/or plate etc.
The shape of described suction ripple heating is arbitrarily, can be the cylinder of small cylinder, semicylinder, cuboid, cube, triangular prism, polygon prism or other shape, and Fig. 1 is the generate heat schematic diagram of sub-shape of suction ripple of the present invention.The height of described suction ripple heating is 1mm～3cm.The cross-sectional area and the sub-spacing of heating of described suction ripple heating are arbitrarily in the zone of reasonableness that reality allows.
Described microwave and heating element combined heating type heating chamber, its manufacture method have 2 schemes:
The first string is:
(1) inhale the sub making of ripple heating: to suction ripple heating of specialized producer required form customized and size, for example: the small cylinder of SiC, graphite or other absorbing material or prism, also can directly buy commercial product.
(2) heating sub-support plate making: on commercial ceramic beaverboard or ceramic wafer, go out the hole of required form and size by machining, then with its as the heating sub-support plate or as with the sub-support plate of the incorporate heating of insulating; Also can be to the sub-support plate of specialized producer needed heating customized, can also be customized and the sub-support plate of the incorporate heating of insulating, can also be directly buy commercial ceramic beaverboard with holes or ceramic wafer as the sub-support plate of heating, the hole shape on the sub-support plate of still must guaranteeing to generate heat and the shape and size of size and heating will be mated mutually.Fig. 2 is the structural representation that has the sub-support plate of heating of blind hole of the present invention, and Fig. 4 is the structural representation that has the sub-support plate of heating of through hole of the present invention, and Fig. 6 is the generate heat structural representation of sub-support plate and insulating of incorporate blind hole of the present invention.
(3) inlay filling and inhale ripple heating: the heating of the suction ripple in the step (1) is inlayed in the sub-support plate of heating that is filled in the step (2).Before inlaying filling, can coat very a spot of waterglass or high-temp glue (mud) inhaling ripple heating sub-surface, and then inlay filling, can increase the fastness of heating on its support plate like this, but be unfavorable for that follow-up heating changes and quantity regulating.High-temp glue (mud) is commercial high-temperature oxidation resistant type product, for example: the high temperature clay that the inorganic anti-material of GF-2 type high-temp glue that Hua Chang high-temp glue factory in Langfang, Hebei province produces or Suzhou Ilyushin Sai Gaowen Co., Ltd produces.Fig. 3 is that the generate heat structural representation of sub-support plate of blind hole behind ripple heating is inhaled in filling of the present invention, Fig. 5 is that the generate heat structural representation of sub-support plate of through hole behind ripple heating is inhaled in filling of the present invention, and Fig. 7 is that the generate heat structural representation of sub-support plate and insulating of the incorporate blind hole in ripple heating son back is inhaled in filling of the present invention.
(4) assembling heating chamber: utilize to be inlaid with in the step (3) and inhale the sub support plate assembling difformity of ripple heating and the cavity of size, and, can obtain microwave of the present invention and heating element combined heating type heating chamber at its peripheral good insulating of wave that coats.If in step (2), made and the sub-support plate of the incorporate heating of insulating, so only need it is assembled into the cavity of difformity and size, can obtain microwave of the present invention and heating element combined heating type heating chamber.Also can be in step (2) to the specialized producer difformity of forming by the sub-support plate of heating directly customized and the cavity of size, also can be directly customized and the incorporate cavity of insulating, so only need inlay to fill to inhale ripple that generates heat and can obtain microwave of the present invention and heating element combined heating type heating chamber according to the described method of step (3).
Second scheme is:
(1) making of the sub-support plate of heating: manufacture method described with claim 3 " making of the sub-support plate that generates heat " is identical.
(2) the sub-pulp preparation of generating heat: microwave absorbing component, waterglass and/or commercial high-temp glue (mud) be mixed and made into mutually have thixotropic slurry (can add suitable quantity of water).The microwave absorbing components contents can be controlled in 60～99wt.% in the slurry, the content of waterglass and/or commercial high-temp glue (mud) can be controlled in 1～40wt.%, and wherein the microwave absorbing component is can the efficient absorption microwave and the SiC powder, C powder, CuO powder, the Fe that generate heat
3O
4The mixture of one or more in powder, AlN powder and the metal fine powder; Commercial high-temp glue (mud) is a high-temperature oxidation resistant type product,
For example: the high temperature clay that the inorganic anti-material of GF-2 type high-temp glue that Hua Chang high-temp glue factory in Langfang, Hebei province produces or Suzhou Ilyushin Sai Gaowen Co., Ltd produces.
(3) inhale sub making and the fill method of ripple heating and have 2.
First method is: the sub-slurry of heating prepared in the step (2) is artificial or utilize machinery to be injected in the hole on the sub-support plate of heating of made in the step (1), guarantee sub-slurry curing of the heating of being filled and fully dehydration at 150 ℃ of heating, dryings then, the sub-support plate of heating after will filling and dewater at last is heated to more than 800 ℃ and is incubated more than 2 hours guaranteeing to inhale the ripple full solidification of generating heat, thereby finally obtains the support plate of inhaling ripple heating that carries of the present invention.Above-mentioned oven dry and heating process are preferentially selected microwave heating.
Second method is: the powder of microwave absorbing component described in the step (2) directly is filled in the hole on the sub-support plate of heating (requirement is a blind hole), upper surface in the hole is coated with and is covered with skim waterglass and/or commercial high-temp glue (mud) subsequently, its objective is the microwave absorbing component powder in the fixing hole.Fig. 8 fills the generate heat structural representation of sub-support plate and insulating of incorporate blind hole behind the microwave absorbing component powder.
(4) assembling heating chamber: utilize to be inlaid with in the step (3) and inhale the sub support plate assembling difformity of ripple heating and the cavity of size, and, can obtain microwave of the present invention and heating element combined heating type heating chamber at its peripheral good insulating of wave that coats.If in step (1), made and the sub-support plate of the incorporate heating of insulating, so only need it is assembled into the cavity of difformity and size, can obtain microwave of the present invention and heating element combined heating type heating chamber.Also can be in step (1) to the specialized producer difformity of forming by the sub-support plate of heating directly customized and the cavity of size, also can be directly customized and the incorporate cavity of insulating, so only need to make and fill to inhale ripple that generates heat and can obtain microwave of the present invention and heating element combined heating type heating chamber according to the described method of step (3).
Advantage of the present invention and good effect:
A kind of microwave of the present invention and heating element combined heating type heating chamber and preparation method thereof have overcome the deficiency that pure microwave heating and pure traditional heater element heat, and have following advantage and good effect:
(1) the present invention has realized the Hybrid Heating of microwave heating with heating (that is: heater element) heating dual mode very cleverly, and the adjusting of microwave heating and heating heating proportion in total heating power both can be carried out intelligent automatic adjusting, can carry out manual adjustment easily again.
(2) use heating chamber of the present invention to add thermal material, can realize the inside and outside heating simultaneously of material, thus homogeneous heating, heat efficiency height.
(3) heating chamber of the present invention can heat any material of comprising metal material (do not consider inflammable and explosive and toxic material etc.).
(4) heating chamber of the present invention only need be positioned over and can realize heating in the microwave field environment, need not to fix, and changes easily.
Can select to change the heating chamber that uses corresponding size according to the size of material to be heated, that is: the large scale material is selected the large scale heating chamber, and the small size material is selected the small size heating chamber, can not run into the problem of " low load with strong power ", therefore energy-saving effect is very outstanding, remarkable in economical benefits.
(5) heating chamber of the present invention, it is inhaled ripple and generates heat the sub-life-span long (not having the incidental fracture failure problem of traditional heater element), is convenient to change and safeguard, and low cost of manufacture, both be suitable for the laboratory heating and used, be suitable for the extensive heating in the industrial production again.
(6) heating chamber of the present invention is simple in structure, makes easily, can design and control according to shape, size and the combination of practical application to heating chamber, and be made into the heating chamber of difformity and different size easily.
(7) heating chamber of the present invention both can singlely independently use, and the multi-cavity system of forming a complexity that also a plurality of cavitys can be interconnected re-uses.
(8) heating chamber of the present invention, it is good to belong to untouchable heating safety, and can be with its total inner surface as thermal source, heating together, so heating area is big, homogeneous heating, heat efficiency height.
(9) heating chamber of the present invention both can have been realized supper-fast intensification (programming rate can reach more than 1000 ℃/minute), can realize superhigh temperature (more than 1600 ℃) heating again.
Description of drawings:
Fig. 1 is the generate heat schematic diagram of sub-shape of suction ripple of the present invention, comprising: cylinder, semicylinder, cuboid, cube, triangular prism, polygon prism.
Fig. 2 is the structural representation that has the sub-support plate of heating of blind hole of the present invention, and wherein Fig. 2 a is the generate heat perspective view of sub-support plate of blind hole, and Fig. 2 b is that the sectional structure schematic diagram is faced in the A-A cross section of Fig. 2 a.
Fig. 3 is that the generate heat structural representation of sub-support plate of blind hole behind ripple heating is inhaled in filling of the present invention, and wherein Fig. 3 a fills to inhale the generate heat perspective view of sub-support plate of ripple heating back blind hole, and Fig. 3 b is that the sectional structure schematic diagram is faced in the A-A cross section of Fig. 3 a.
Fig. 4 is the structural representation that has the sub-support plate of heating of through hole of the present invention, and wherein Fig. 4 a is the generate heat perspective view of sub-support plate of through hole, and Fig. 4 b is that the sectional structure schematic diagram is faced in the A-A cross section of Fig. 4 a.
Fig. 5 is that the generate heat structural representation of sub-support plate of through hole behind ripple heating is inhaled in filling of the present invention, and wherein Fig. 5 a fills to inhale the generate heat perspective view of sub-support plate of ripple heating back through hole, and Fig. 5 b is that the sectional structure schematic diagram is faced in the A-A cross section of Fig. 5 a.
Fig. 6 is the generate heat structural representation of sub-support plate and insulating of incorporate blind hole of the present invention, wherein Fig. 6 a is the generate heat perspective view of sub-support plate and insulating of incorporate blind hole, and Fig. 6 b is that the sectional structure schematic diagram is faced in the A-A cross section of Fig. 6 a.
Fig. 7 is that the generate heat structural representation of sub-support plate and insulating of the incorporate blind hole in ripple heating son back is inhaled in filling of the present invention, wherein Fig. 7 a fill to inhale the generate heat perspective view of sub-support plate and insulating of the incorporate blind hole in ripple heating son back, and Fig. 7 b is that the sectional structure schematic diagram is faced in the A-A cross section of Fig. 7 a.
Fig. 8 is the generate heat structural representation of sub-support plate and insulating of incorporate blind hole behind the filling microwave absorbing component powder of the present invention, wherein Fig. 8 a fills the generate heat perspective view of sub-support plate and insulating of incorporate blind hole behind the microwave absorbing component powder, and Fig. 8 b is that the sectional structure schematic diagram is faced in the A-A cross section of Fig. 8 a.
Fig. 9 is the schematic diagram of described " microwave and the heating element combined heating type heating chamber " of first embodiment of the invention and each part thereof, wherein Fig. 9 a is the perspective view of heating chamber, Fig. 9 b is that the sectional structure schematic diagram is faced in the A-A cross section of Fig. 9 a, and Fig. 9 c is the B-B cross section side-looking sectional structure schematic diagram of Fig. 9 a.
Figure 10 is the schematic diagram of described " microwave and the heating element combined heating type heating chamber " of second embodiment of the invention and each part thereof, wherein Figure 10 a is the perspective view of heating chamber, Figure 10 b is that the sectional structure schematic diagram is faced in the A-A cross section of Figure 10 a, and Figure 10 c is the perspective view of heating chamber base.
Figure 11 is the schematic diagram of described " microwave and the heating element combined heating type heating chamber " of third embodiment of the invention and each part thereof, wherein Figure 11 a is the perspective view of heating chamber, Figure 11 b is that the sectional structure schematic diagram is faced in the A-A cross section of Figure 11 a, and Figure 11 c is the B-B cross section side-looking sectional structure schematic diagram of Figure 11 a.
Figure 12 is the schematic diagram of described " microwave and the heating element combined heating type heating chamber " of four embodiment of the invention and each part thereof, wherein Figure 12 a is the perspective view of heating chamber, Figure 12 b is that the sectional structure schematic diagram is faced in the A-A cross section of Figure 12 a, and Figure 12 c is the B-B cross section side-looking sectional structure schematic diagram of Figure 12 a.
Numeral among Fig. 1 to Figure 12 explanation: the 1-blind hole on the sub-support plate of generating heat; The 2-support plate that generates heat: form by ceramic beaverboard that has blind hole or through hole or ceramic wafer, and preferred good ceramic beaverboard or the ceramic wafer of microwave penetrating; 3-inhales ripple heating; The 4-through hole on the sub-support plate that generates heat; Sub-support plate of the incorporate heating of 5-and insulating are made up of ceramic beaverboard or ceramic wafer that microwave penetrating is good; The coat of 6-waterglass and/or high-temp glue (mud), very thin thickness; The powder of 7-microwave absorbing component; 8-heating chamber loam cake: form by ceramic beaverboard or ceramic wafer that microwave penetrating is good, contain and inhale ripple heating; 8 '-heating chamber loam cake: form by ceramic beaverboard or ceramic wafer that microwave penetrating is good, do not contain and inhale ripple heating; 9-heating chamber base: form by inhaling ripple heating and good ceramic beaverboard or the ceramic wafer of microwave penetrating; 10-insulating: form by ceramic fibre cotton, plate or ceramic wafer that microwave penetrating is good.
Embodiment
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.Heating chamber can be made into different sizes and different shapes according to the following example is described with quadrat method, and because microwave of the present invention and heating element combined heating type heating chamber are the on-fixed Installation Modes in microwave field, movable easy replacing, therefore can select easily to change according to the size of material to be heated uses the heating chamber of different size to mate heating, that is: the corresponding selection large scale of large scale material heating chamber, the corresponding selection small size of small size material heating chamber, thereby energy savings greatly.Simultaneously, both can independently use by single heating chamber, the heating chamber system that forms a complexity that also a plurality of cavitys can be interconnected uses, and can also design and control according to shape, size and the combination of practical application to heating chamber.
Embodiment one:
Describe first embodiment of the present invention in detail below in conjunction with accompanying drawing 9.
Fig. 9 is the schematic diagram of described " microwave and the heating element combined heating type heating chamber " of first embodiment of the present invention and each part thereof.Heating chamber among this embodiment is formed by inhaling ripple heating 3, the sub-support plate of incorporate heating and insulating 5 and heating chamber loam cake 8, wherein " sub-support plate of incorporate heating and insulating " has five blocks of plates (on every side four and lower bottom base one) and is assembled into a cube shaped cavity that the top is opening-like, this cavity is done as a whole cooperatively interacting with heating chamber loam cake 8 again and is formed a complete heating chamber, and its manufacture method is as follows:
(1) makes " sub-support plate of incorporate heating and insulating 5 " and heating chamber loam cake 8: as shown in Figure 9, according to the heating chamber size of drawing up and doing, at first contain six blocks of special-shaped plates that the zirconium aluminosilicate fiberboard is cut into shape shown in Figure 9 with commercial, comprise four on every side, one of one of lower bottom base and loam cake, and then process the cylinder bodily form blind hole of required size respectively at the inner surface of above-mentioned six sketch plates by machinery, five sketch plates that simultaneously will be wherein are all as sub-support plate of incorporate heating and insulating 5, and with another piece sketch plate as heating chamber loam cake 8.The making of above-mentioned sketch plate and blind hole processing also can be customized to specialized producer.
(2) the sub-slurry of preparation heating: the commercialization high temperature clay of the waterglass of the SiC powder of 92wt.%, 3wt.% and 5wt.% is mixed and made into mutually has thixotropic slurry (can add suitable quantity of water), wherein the particle diameter of SiC powder does not have specific requirement, and the particle diameter of selecting for use in this example is about 150 μ m.
(3) inhale the making and the filling of ripple heating: the sub-slurry of heating prepared in the step (2) is artificial or utilize machinery to be injected in the step (1) in the blind hole on the sub-support plate of heating (six blocks of special-shaped plates), guaranteed sub-slurry curing of the heating of being filled and fully dehydration in 3 hours at 150 ℃ of heating, dryings then, the sub-support plate of heating after the last dehydration again is heated to 1000 ℃ and is incubated 2 hours to realize the full solidification of suction ripple heating, carries the sub support plates of suction ripple heating thereby finally obtain six.Above-mentioned oven dry and heating process are preferentially selected microwave heating.
(4) assembling heating chamber: become cavity shown in Figure 9 with carrying six support plates inhaling ripple heating in the step (3), can obtain present embodiment described " microwave and heating element combined heating type heating chamber ".
Heating principle and the using method of embodiment one described " microwave and heating element combined heating type heating chamber " are such: heating chamber of the present invention is placed in the microwave field, the microwave that sends from microwave generator pass wave good contain zirconium aluminosilicate fiberboard (insulating), the subsequent section microwave is directly inhaled ripple heating 3 and is absorbed and cause its rapid heating up, all the other microwaves will be passage with the space of inhaling between ripple heating 3 mainly then, pass sub-support plate of incorporate heating and insulating 5 comparatively smoothly and be heated material to be heated in the chamber and absorb, and cause material to realize self-heating, meanwhile, inhale ripple heating 3 heats that send and also can add thermal material by the heat transmission, the heating chamber temperature inside also will raise rapidly simultaneously, and finally realize heating purposes.Its power conversion, transmission and material heating process are: " electric energy → microwave energy → sub-heat energy that generates heat → heat transmission → material heating " and/or " electric energy → microwave energy → material heating ".Embodiment one described " microwave and heating element combined heating type heating chamber " can realize that microwave heating and heating (that is: heater element) heat the Hybrid Heating of dual mode, and for different materials to be heated and different heating-up temperatures, the adjusting of microwave heating and heating heating proportion in total heating power both can be carried out intelligent automatic adjusting, can carry out manual adjustment easily by the quantity that changes heating on the support plate again.
Embodiment two:
Describe second embodiment of the present invention in detail below in conjunction with accompanying drawing 10.
Figure 10 is the schematic diagram of described " microwave and the heating element combined heating type heating chamber " of second embodiment of the present invention and each part thereof.Heating chamber among this embodiment is formed by inhaling ripple heating 3, " sub-support plate of incorporate heating and insulating 5 " (cavity) and heating chamber base 9, sub-support plate of wherein incorporate heating and insulating constitute the circular cylindrical cavity that the below is opening-like, this cavity is done as a whole cooperatively interacting with heating chamber base 9 again and is formed a complete heating chamber, and its manufacture method is as follows:
(1) make to inhale ripple heating: inhale ripple heating 3 to the small cylinder shape SiC of specialized producer required size customized, or directly buy commercial product.
(2) make cavity and the heating chamber base of forming by " sub-support plate of incorporate heating and insulating 5 " 9: as shown in figure 10, according to the heating chamber size of drawing up and doing, to specialized producer (disposable mould molding) customized needed cylinder bodily form cavity and heating chamber base 9, this cavity and base material are all selected the resistant to elevated temperatures zirconium alumina silicate fibre that contains for use, and with this cavity as " sub-support plate of incorporate heating and insulating 5 "; Process the small cylinder shape blind hole of required size by machinery at the upper surface of the inner surface of cavity and base 9 then, can obtain the needed cylinder bodily form cavity of forming by " sub-support plate of incorporate heating and insulating 5 " of present embodiment.Attention blind hole size and SiC inhale the size of ripple heating 3 and will coincide mutually.
(3) inlay and fill to inhale ripple heating: the SiC in the step (1) is inhaled ripple heating 3 inlay in the blind hole that is filled into cavity inner surface and base 9 upper surfaces in the step (2).Before inlaying filling, can coat very a spot of waterglass or high-temp glue (mud) inhaling ripple 3 surfaces that generate heat, and then inlay filling to guarantee that inhaling ripple heating son 3 forms strong bonded with blind hole.Inhale ripple heating inlay finish after, with the installation that cooperatively interacts of circular cylindrical cavity and base 9, can obtain present embodiment described " microwave and heating element combined heating type heating chamber ".
Heating principle and the using method of embodiment two described " microwaves and heating element combined heating type heating chamber " are described identical with embodiment one.
Embodiment three:
Describe the 3rd embodiment of the present invention in detail below in conjunction with accompanying drawing 11.
Figure 11 is the schematic diagram of the 3rd described " microwave and the heating element combined heating type heating chamber " of embodiment of the present invention and each part thereof.Heating chamber among this embodiment is made up of suction ripple heating 3, the sub-support plate 2 of heating, insulating 10, heating chamber loam cake 8 ', wherein generate heat sub-support plate 2 and insulating 10 is respectively a cube shaped cavity that the top is opening-like, they are done as a whole cooperatively interacting with heating chamber loam cake 8 ' more jointly and form a complete heating chamber, and its manufacture method is as follows:
(1) make to inhale ripple heating: inhale ripple heating 3 to the small cylinder shape SiC of specialized producer required size customized, or directly buy commercial product.
(2) make cavity and the heating chamber loam cake of forming by the sub-support plate of heating 8 ': as shown in figure 11, according to the heating chamber size of drawing up and doing, to cube shaped cavity and special-shaped heating chamber loam cake 8 ' that specialized producer's difference (disposable mould molding) customized is made up of the sub-support plate 2 of heating, this cavity and loam cake material are all selected the resistant to elevated temperatures zirconium alumina silicate fibre that contains for use.On the inner surface of cavity, process the small cylinder shape blind hole of required size then by machinery, can obtain the sub-support plate cavity of the needed heating of present embodiment.Attention blind hole size and SiC inhale the size of ripple heating 3 and will coincide mutually.
(3) inlay and fill to inhale ripple heating: the SiC in the step (1) is inhaled ripple heating 3 inlay and be filled in the step (2) in the blind hole on the cavity inner surface.Before inlaying filling, can coat very a spot of waterglass or high-temp glue (mud) inhaling ripple 3 surfaces that generate heat, and then inlay filling to guarantee that inhaling ripple heating son 3 forms strong bonded with blind hole.
(4) make the cavity of forming by insulating: as shown in figure 11, according to cavity size and the profile in the step (2), to the cube shaped cavity that specialized producer (disposable mould molding) customized is made up of insulating 10, this cavity material is also selected the resistant to elevated temperatures zirconium aluminium silicate fiber that contains for use.
(5) assembling heating chamber: as shown in figure 11, will " by the cube shaped cavity formed of the sub-support plate 2 of heating " place in " the cube shaped cavity of forming by insulating 10 ", and guarantee to form between the two to closely cooperate.And then, can obtain present embodiment with heating chamber loam cake 8 ' and the cavity installation that cooperatively interacts suitable for reading that assembles, can obtain present embodiment described " microwave and heating element combined heating type heating chamber ".
Heating principle and the using method of embodiment three described " microwaves and heating element combined heating type heating chamber " are described identical with embodiment one.
Embodiment four:
Describe the 4th embodiment of the present invention in detail below in conjunction with accompanying drawing 12.
Figure 12 is the schematic diagram of the 4th described " microwave and the heating element combined heating type heating chamber " of embodiment of the present invention and each part thereof.Heating chamber among this embodiment is formed by inhaling ripple heating 3, the sub-support plate of incorporate heating and insulating 5 and heating chamber loam cake 8 ', wherein inhales ripple heating sub 3 and is made up of waterglass and/or high-temp glue (mud) coat 6 and microwave absorbing component powder 7 again.Sub-support plate of incorporate heating and insulating 5 are the cube shaped cavitys that the top is opening-like, and it is done as a whole cooperatively interacting with heating chamber loam cake 8 ' again and forms a complete heating chamber, and its manufacture method is as follows:
(1) makes cavity and the heating chamber loam cake of forming by " sub-support plate of incorporate heating and insulating 5 " 8 ': as shown in figure 12, according to the heating chamber size of drawing up and doing, to specialized producer (disposable mould molding) customized needed cube bodily form cavity and heating chamber loam cake 8 ', this cavity and loam cake material are all selected the resistant to elevated temperatures zirconium alumina silicate fibre that contains for use, and with this cavity as " sub-support plate of incorporate heating and insulating 5 "; Process the small cylinder shape blind hole of required size by machinery at the inner surface of cavity then, can obtain the needed cube shaped cavity of forming by " sub-support plate of incorporate heating and insulating 5 " of present embodiment.The making of above-mentioned cavity and blind hole also can entrust specialized producer to utilize mould while disposal molding to process.
(2) inhale sub making and the filling of ripple heating: artificial or utilization machinery is filled into microwave absorbing component powder 7 interior the and compacting of blind hole of cavity inner surface in the step (1), present embodiment selects for use pure SiC powder as microwave absorbing component powder 7, particle diameter for the SiC powder does not have specific requirement, and the particle diameter of selecting for use in this example is about 150 μ m.Subsequently, at the coat 6 of hole surface coating skim waterglass and/or high temperature clay, treat the SiC powder to be encapsulated in inside, hole after it solidifies son 3 thereby the suction ripple that obtains to be made up of SiC powder and surface coating layer generates heat.
(3) assembling heating chamber: as shown in figure 12,, can obtain present embodiment described " microwave and heating element combined heating type heating chamber " with heating chamber loam cake 8 ' and the cavity installation of making that cooperatively interacts suitable for reading.
Heating principle and the using method of embodiment four described " microwaves and heating element combined heating type heating chamber " are described identical with embodiment one.
Claims (5)
1. microwave and heating element combined heating type heating chamber, form by inhaling ripple heating, the sub-support plate of heating and the saturating good insulating of ripple, the sub-support plate surface distributed of wherein generating heat a large amount of blind holes or through hole, the hole is identical with the shape and size of inhaling ripple heating, inhaling ripple heating is embedded on the hole on the sub-support plate of heating surface, wherein:
(1) inhaling ripple heating is can the efficient absorption microwave and the SiC powder, C powder, CuO powder, the Fe that generate heat
3O
4The mixture of one or more in powder and the AlN powder;
(2) the sub-support plate of heating is ceramic beaverboard or ceramic wafer, preferred good ceramic beaverboard or the ceramic wafer of microwave penetrating, for example: aluminosilicate fiberboard, quartz wool sheet, high alumina silicate fiber plate, contain chromium (Cr
2O
3) aluminosilicate fiberboard, contain zirconium (ZrO
2) aluminosilicate fiberboard, polycrystalline mullite fibre plate or polycrystalline alumina fiber plate etc.;
(3) insulating is good ceramic fibre cotton, plate or a ceramic wafer of microwave penetrating, for example: aluminosilicate fiber cotton and/or plate, quartz fibre cotton and/or plate, high alumina silicate fiber cotton and/or plate, contain chromium (Cr
2O
3) aluminosilicate fiber cotton and/or plate, contain zirconium (ZrO
2) aluminosilicate fiber cotton and/or plate, polycrystalline mullite fibre cotton and/or plate or polycrystalline alumina fiber cotton and/or plate etc.
2. according to described microwave of claim 1 and heating element combined heating type heating chamber, it is characterized in that, the shape of described suction ripple heating is arbitrarily, it can be the cylinder of small cylinder, semicylinder, cuboid, cube, triangular prism, polygon prism or other shape, the height of described suction ripple heating is 1mm～3cm, and the cross-sectional area and the sub-spacing of heating of described suction ripple heating are arbitrarily in the zone of reasonableness that reality allows.
3. the manufacture method of described microwave of claim 1 and heating element combined heating type heating chamber is characterized in that:
(1) inhale the sub making of ripple heating: to suction ripple heating of specialized producer required form customized and size, for example: the small cylinder of SiC, graphite or other absorbing material or prism, also can directly buy commercial product.
(2) heating sub-support plate making: on commercial ceramic beaverboard or ceramic wafer, go out the hole of required form and size by machining, then with its as the heating sub-support plate or as with the sub-support plate of the incorporate heating of insulating; Also can be to the sub-support plate of specialized producer needed heating customized, can also be customized and the sub-support plate of the incorporate heating of insulating, can also be directly buy commercial ceramic beaverboard with holes or ceramic wafer as the sub-support plate of heating, the hole shape on the sub-support plate of still must guaranteeing to generate heat and the shape and size of size and heating will be mated mutually.
(3) inlay filling and inhale ripple heating: the heating of the suction ripple in the step (1) is inlayed in the sub-support plate of heating that is filled in the step (2).Before inlaying filling, can coat very a spot of waterglass or high-temp glue (mud) inhaling ripple heating sub-surface, and then inlay filling, can increase the fastness of heating on its support plate like this, but be unfavorable for that follow-up heating changes and quantity regulating.High-temp glue (mud) is commercial high-temperature oxidation resistant type product, for example: the high temperature clay that the inorganic anti-material of GF-2 type high-temp glue that Hua Chang high-temp glue factory in Langfang, Hebei province produces or Suzhou Ilyushin Sai Gaowen Co., Ltd produces.
(4) assembling heating chamber: utilize to be inlaid with in the step (3) and inhale the sub support plate assembling difformity of ripple heating and the cavity of size, and, can obtain microwave of the present invention and heating element combined heating type heating chamber at its peripheral good insulating of wave that coats.If in step (2), made and the sub-support plate of the incorporate heating of insulating, so only need it is assembled into the cavity of difformity and size, can obtain microwave of the present invention and heating element combined heating type heating chamber.Also can be in step (2) to the specialized producer difformity of forming by the sub-support plate of heating directly customized and the cavity of size, also can be directly customized and the incorporate cavity of insulating, so only need inlay to fill to inhale ripple that generates heat and can obtain microwave of the present invention and heating element combined heating type heating chamber according to the described method of step (3).
4. the making of described microwave of claim 1 and heating element combined heating type heating chamber can also be adopted following method (being different from the described method of claim 3), it is characterized in that:
(1) making of the sub-support plate of heating: manufacture method described with claim 3 " making of the sub-support plate that generates heat " is identical;
(2) the sub-pulp preparation of generating heat: microwave absorbing component, waterglass and/or commercial high-temp glue (mud) be mixed and made into mutually have thixotropic slurry (can add suitable quantity of water).The microwave absorbing components contents can be controlled in 60～99wt.% in the slurry, the content of waterglass and/or commercial high-temp glue (mud) can be controlled in 1～40wt.%, and wherein the microwave absorbing component is can the efficient absorption microwave and the SiC powder, C powder, CuO powder, the Fe that generate heat
3O
4The mixture of one or more in powder, AlN powder and the metal fine powder; Commercial high-temp glue (mud) is a high-temperature oxidation resistant type product, for example: the high temperature clay that the inorganic anti-material of GF-2 type high-temp glue that Hua Chang high-temp glue factory in Langfang, Hebei province produces or Suzhou Ilyushin Sai Gaowen Co., Ltd produces;
(3) inhale sub making and the fill method of ripple heating and have 2:
First method is: the sub-slurry of heating prepared in the step (2) is artificial or utilize machinery to be injected in the hole on the sub-support plate of heating of made in the step (1), guarantee sub-slurry curing of the heating of being filled and fully dehydration at 150 ℃ of heating, dryings then, the sub-support plate of heating after will filling and dewater at last is heated to more than 800 ℃ and is incubated more than 2 hours guaranteeing to inhale the ripple full solidification of generating heat, thereby finally obtains the support plate of inhaling ripple heating that carries of the present invention.Above-mentioned oven dry and heating process are preferentially selected microwave heating;
Second method is: the powder of microwave absorbing component described in the step (2) directly is filled in the hole on the sub-support plate of heating (requirement is a blind hole), upper surface in the hole is coated with and is covered with skim waterglass and/or commercial high-temp glue (mud) subsequently, its objective is the microwave absorbing component powder in the fixing hole;
(4) assembling heating chamber: utilize to be inlaid with in the step (3) and inhale the sub support plate assembling difformity of ripple heating and the cavity of size, and, can obtain microwave of the present invention and heating element combined heating type heating chamber at its peripheral good insulating of wave that coats.If in step (1), made and the sub-support plate of the incorporate heating of insulating, so only need it is assembled into the cavity of difformity and size, can obtain microwave of the present invention and heating element combined heating type heating chamber.Also can be in step (1) to the specialized producer difformity of forming by the sub-support plate of heating directly customized and the cavity of size, also can be directly customized and the incorporate cavity of insulating, so only need to make and fill to inhale ripple that generates heat and can obtain microwave of the present invention and heating element combined heating type heating chamber according to the described method of step (3).
5. the use of described microwave of claim 1 and heating element combined heating type heating chamber, it is characterized in that, microwave directly adds thermal material and inhales ripple heating and adds the two shared ratio in total heating power (specially referring to effective gross power that material absorbs) of thermal material by the heat transmission and all can change in the scope 0～100%, but the two power sum is 100%, the regulation and control of its ratio can realize by changing heating son height (that is: thickness) and its ratio of area occupied on support plate, that is: heating height and its area occupied on support plate are big more, the direct-fired power proportion of microwave is more little, and the power proportion that heating transmits heating by heat is then big more; Heating mainly is by changing spacing, quantity, the shape and size of heating on the support plate in the adjusting of area occupied ratio on its support plate; Under the situation that pitch of holes is fixed on generate heat sub-shape, size and the support plate, heating can be realized by changing the sub quantity of generating heat on the support plate in the adjusting of area occupied ratio on its support plate.
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Effective date of registration: 20150915 Address after: 063020, Tangshan City Road, Hebei Province North cylinder kiln road and Ronghua Road intersection 600 meters east Patentee after: Tangshan Ren Yuan Microwave Instrument Co., Ltd. Address before: 100084 4, building 15, southwest 301, Tsinghua University, Beijing, Haidian District Patentee before: Xu Yanji |