CN219797909U - Furnace chamber cavity structure for ultra-high temperature microwave oven - Google Patents
Furnace chamber cavity structure for ultra-high temperature microwave oven Download PDFInfo
- Publication number
- CN219797909U CN219797909U CN202320934906.5U CN202320934906U CN219797909U CN 219797909 U CN219797909 U CN 219797909U CN 202320934906 U CN202320934906 U CN 202320934906U CN 219797909 U CN219797909 U CN 219797909U
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- Prior art keywords
- carbon fiber
- layer
- felt layer
- cavity
- inner cavity
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- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 81
- 239000004917 carbon fiber Substances 0.000 claims abstract description 81
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 81
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 9
- 229910002804 graphite Inorganic materials 0.000 abstract description 9
- 239000010439 graphite Substances 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 description 11
- 239000007770 graphite material Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a cavity structure of a furnace chamber used for an ultra-high temperature microwave oven, which relates to the technical field of furnace chambers and comprises the following components: the conductive carbon fiber inner cavity is used for forming an inner cavity body for accommodating the heated material; the carbon fiber hard felt layer is fixedly coated on the outer layer of the conductive carbon fiber inner cavity; the carbon fiber soft felt layer is fixedly coated on the outer layer of the carbon fiber hard felt layer; the aluminum silicate fiber heat-insulating layer is fixedly coated on the outer layer of the carbon fiber soft felt layer; and the microwave waveguide feed port penetrates through the aluminum silicate fiber heat insulation layer, the carbon fiber soft felt layer, the carbon fiber hard felt layer and the conductive carbon fiber inner cavity. The use temperature of the cavity can reach 3000 ℃, compared with a graphite cavity, the cavity has higher strength, the heat conduction wall graphite is much lower, so that the heat insulation performance of the cavity can be improved, and the conductivity is higher than that of the graphite, so that the microwave transmission damage is smaller, and the temperature rise is facilitated.
Description
Technical Field
The utility model relates to the technical field of furnace chambers, in particular to a furnace chamber structure for an ultra-high temperature microwave oven.
Background
The microwave oven chamber is basically a stainless steel water jacket shell, and the heated material is used for internal heat preservation. The high temperature resistance of the heat insulating material used in the microwave field determines that the highest sintering temperature is about 1600 ℃.
Conventionally, tungsten, molybdenum, rhenium and other high-temperature-resistant metals are used as the inner container, and external heat preservation is adopted to solve the problem. And the use temperature can only be about 2000 ℃. However, these metals are expensive, the problems of welding strength, deformation, expansion and the like cannot be well solved under the high temperature condition, the processing difficulty is very high, the industrialized furnace chamber is basically not realized, if the graphite material is used for manufacturing the inner container, the heating is not facilitated if the graphite material is thick, and the strength is insufficient if the graphite material is thin.
The above information disclosed in the background section is only for enhancement of understanding of the background of the utility model and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a furnace cavity structure for an ultra-high temperature microwave oven. The method is realized by the following technical scheme:
a cavity structure of a furnace chamber for an ultra-high temperature microwave oven, comprising:
the conductive carbon fiber inner cavity is used for forming an inner cavity body for accommodating the heated material;
the carbon fiber hard felt layer is fixedly coated on the outer layer of the conductive carbon fiber inner cavity;
the carbon fiber soft felt layer is fixedly coated on the outer layer of the carbon fiber hard felt layer;
the aluminum silicate fiber heat-insulating layer is fixedly coated on the outer layer of the carbon fiber soft felt layer;
the microwave waveguide feed port penetrates through the aluminum silicate fiber heat-insulating layer, the carbon fiber soft felt layer, the carbon fiber hard felt layer and the conductive carbon fiber inner cavity.
In some embodiments, the aluminum silicate fiber insulation layer, the carbon fiber soft felt layer, the carbon fiber hard felt layer and the conductive carbon fiber inner cavity are polygonal structures with the same shape and different sizes.
In some embodiments, the polygonal structures comprise quadrilateral structures, pentagonal structures, or hexagonal structures.
In some embodiments, the microwave waveguide feed-through is provided on each side of the polygonal structure.
In some embodiments, the carbon fiber felt layer has a thickness greater than the aluminum silicate fiber insulation layer, the aluminum silicate fiber insulation layer has a thickness greater than the carbon fiber felt layer, and the carbon fiber felt layer has a thickness greater than the thickness of the conductive carbon fiber lumen.
Compared with the prior art, the utility model has the following beneficial effects: the cavity provided by the utility model has the advantages that the use temperature can reach 3000 ℃, compared with a graphite cavity, the cavity has higher strength, the heat conduction wall graphite is much lower, so that the heat insulation performance of the cavity can be improved, and the heat conduction is higher than that of the graphite, so that the transmission damage of microwaves is smaller, and the temperature rise is facilitated.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
Fig. 1 is a schematic view of a cavity structure of a furnace chamber used in an ultra-high temperature microwave oven according to the present utility model.
Reference numerals:
1. a conductive carbon fiber lumen; 2. a carbon fiber hard felt layer; 3. a carbon fiber soft felt layer; 4. an aluminum silicate fiber heat-insulating layer; 5. an inner cavity; 6. microwave waveguide feed-in.
Specific embodiments of the present utility model have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this embodiment of the utility model, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "first," "second," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the utility model.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.
Interpretation of technical terms:
internal heat preservation: and (5) wrapping the heated crucible or material by the heat-insulating material, and placing the heated crucible or material into a heating furnace chamber.
External heat preservation: the heated crucible or material is directly put into the furnace shell, and the heat insulation material is wrapped outside the furnace shell.
The following describes the technical scheme of the present utility model and how the technical scheme of the present utility model solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present utility model will be described below with reference to the accompanying drawings.
Referring to fig. 1, a cavity structure of an oven for an ultra-high temperature microwave oven according to a preferred embodiment of the present utility model comprises:
a conductive carbon fiber inner cavity 1 for forming an inner cavity 5 for accommodating a heated material;
the carbon fiber hard felt layer 2 is fixedly coated on the outer layer of the conductive carbon fiber inner cavity;
the carbon fiber soft felt layer 3 is fixedly coated on the outer layer of the carbon fiber hard felt layer;
the aluminum silicate fiber heat preservation layer 4 is fixedly coated on the outer layer of the carbon fiber soft felt layer;
and the microwave waveguide feed-in port 6 penetrates through the aluminum silicate fiber heat insulation layer, the carbon fiber soft felt layer, the carbon fiber hard felt layer and the conductive carbon fiber inner cavity. The microwave waveguide feed-in port is used for heating the heated material by microwaves.
The conductive carbon fiber inner cavity 1 has conductive performance, specifically, the conductive carbon fiber inner cavity 1 is formed by compression molding of high conductive carbon fiber, then is impregnated with thermosetting resin doped with nano conductive carbon fiber powder, is carbonized, and is polished and formed on the inner wall after multiple times of impregnation, carbonization and weight increment.
Alternatively, the cross section of the conductive carbon fiber cavity 1 is configured in a polygonal structure, such as a regular pentagonal structure as shown in fig. 1, it may be understood that a quadrangular structure, a hexagonal structure, or other polygonal structures may be also used, and the cavity 5 is formed inside the conductive carbon fiber cavity 1 to accommodate the heated material.
The carbon fiber hard felt layer 2 is fixedly coated on the outer wall of the conductive carbon fiber inner cavity 1; the carbon fiber soft felt layer 3 is fixedly coated on the outer wall of the carbon fiber hard felt layer 2; the aluminum silicate fiber heat preservation layer 4 is fixedly coated on the outer wall of the carbon fiber soft felt layer 3.
Specifically, the outer insulation structure of the multilayer structure formed by the carbon fiber hard felt layer 2, the carbon fiber soft felt layer 3 and the aluminum silicate fiber insulation layer 4 is arranged on one side of the outer wall of the conductive carbon fiber inner cavity 1, the problems of strength and conductivity of the ultra-high temperature microwave cavity are effectively solved, and the conductive carbon fiber inner cavity 1, the carbon fiber hard felt layer 2, the carbon fiber soft felt layer 3 and the aluminum silicate fiber insulation layer 4 are identical in shape and different in size and dimension, for example, the sections of the conductive carbon fiber inner cavity 1, the carbon fiber hard felt layer 2, the carbon fiber soft felt layer 3 and the aluminum silicate fiber insulation layer 4 are all regular pentagonal structures.
Compared with a graphite cavity, the cavity structure of the utility model has higher strength, much lower thermal conductivity than graphite and good heat preservation effect. The cavity has higher conductivity than graphite, i.e. the microwave transmission loss is smaller, and the cavity itself absorbs less microwave.
The working principle of the technical scheme is as follows: the cavity of the furnace chamber is calculated through software simulation, the cavity 5 of the furnace chamber is designed, the microwave waveguide feed-in ports 6 on five surfaces are designed according to an asymmetric structure, the inner wall of the cavity 1 of the conductive carbon fiber is molded by adopting high conductive carbon fiber, then thermosetting resin doped with nano conductive carbon fiber powder is soaked, carbonized, weighted and polished to form the inner wall, the outer wall of the cavity is subjected to external heat preservation by adopting a multi-layer heat preservation structure consisting of a carbon fiber hard felt layer 2, a carbon fiber soft felt layer and an aluminum silicate fiber heat preservation layer 4, and the whole cavity sequentially comprises the conductive carbon fiber cavity 1, the carbon fiber hard felt layer 2, the carbon fiber soft felt layer 3 and the aluminum silicate fiber heat preservation layer 4 from inside to outside, so that the furnace chamber can resist high temperature of more than 2000 ℃ for a long time, and the structure of the cavity is required to be used in vacuum or reducing atmosphere and inert atmosphere.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (5)
1. The utility model provides a furnace chamber cavity structure that ultra-high temperature microwave oven used which characterized in that includes:
the conductive carbon fiber inner cavity is used for forming an inner cavity body for accommodating the heated material;
the carbon fiber hard felt layer is fixedly coated on the outer layer of the conductive carbon fiber inner cavity;
the carbon fiber soft felt layer is fixedly coated on the outer layer of the carbon fiber hard felt layer;
the aluminum silicate fiber heat-insulating layer is fixedly coated on the outer layer of the carbon fiber soft felt layer;
the microwave waveguide feed port penetrates through the aluminum silicate fiber heat-insulating layer, the carbon fiber soft felt layer, the carbon fiber hard felt layer and the conductive carbon fiber inner cavity.
2. The oven cavity structure for use in an ultra-high temperature microwave oven according to claim 1, wherein the aluminum silicate fiber insulation layer, the carbon fiber soft felt layer, the carbon fiber hard felt layer and the conductive carbon fiber inner cavity are polygonal structures with the same shape and different sizes.
3. The oven cavity structure for use in an ultra-high temperature microwave oven according to claim 2, wherein the polygonal structure comprises a quadrangular structure, a pentagonal structure, or a hexagonal structure.
4. A furnace cavity structure for use in an ultra-high temperature microwave oven according to claim 2 or 3, wherein each side of the polygonal structure is provided with the microwave waveguide feed-in.
5. The oven cavity structure for use in an ultra-high temperature microwave oven according to claim 1, wherein the carbon fiber felt layer has a thickness greater than the aluminum silicate fiber insulation layer, the aluminum silicate fiber insulation layer has a thickness greater than the carbon fiber felt layer, and the carbon fiber felt layer has a thickness greater than the conductive carbon fiber cavity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022221239313 | 2022-08-12 | ||
| CN202222123931 | 2022-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219797909U true CN219797909U (en) | 2023-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320934906.5U Active CN219797909U (en) | 2022-08-12 | 2023-04-24 | Furnace chamber cavity structure for ultra-high temperature microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219797909U (en) |
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2023
- 2023-04-24 CN CN202320934906.5U patent/CN219797909U/en active Active
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