CN110595216A - Heating furnace - Google Patents
Heating furnace Download PDFInfo
- Publication number
- CN110595216A CN110595216A CN201910943492.0A CN201910943492A CN110595216A CN 110595216 A CN110595216 A CN 110595216A CN 201910943492 A CN201910943492 A CN 201910943492A CN 110595216 A CN110595216 A CN 110595216A
- Authority
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- Prior art keywords
- heating
- insulation layer
- heating element
- heat insulation
- furnace
- Prior art date
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- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 173
- 238000009413 insulation Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0033—Linings or walls comprising heat shields, e.g. heat shieldsd
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1808—Removable covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
- F27B2014/045—Vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0825—Crucible or pot support
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0843—Lining or casing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Resistance Heating (AREA)
Abstract
The invention discloses a heating furnace, which comprises: a furnace body; the heat insulation layer is connected with the inner side wall and the bottom wall of the furnace body so as to form a heating cavity with an open upper end in the furnace body; a heating element mounted to a bottom wall of the heating chamber; a carrier element coupled to a sidewall of the heating cavity, the carrier element positioned above the heating element and vertically spaced apart from the heating element. According to the heating furnace, the heat insulating layer, the bearing element and the heating element are arranged, so that the heating furnace can meet the special boundary condition requirement of only transferring heat from the bottom to the heated working medium, the heated working medium can be effectively isolated from the heating element, and the heating element can be prevented from being damaged.
Description
Technical Field
The invention belongs to the technical field of metal melting, and particularly relates to a heating furnace.
Background
For melting of high-temperature and refractory metals, methods commonly used in the industry at present are resistance heating, induction heating, arc heating and the like. Induction heating is to generate current inside the heated material by means of electromagnetic induction, and the heating is achieved by means of the energy of these eddy currents. The resistance heating is a method for electrically heating materials by using the heat effect of current passing through a resistor body.
In the related art, the incoming direction of heat flow cannot be controlled; and the heating body is not physically isolated from the heated material, so that the heated material has great threat to the heating body under special conditions such as splashing and the like, the heating of the heated working medium from a single surface cannot be realized, and some special boundary condition requirements cannot be met.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the present invention to provide an electric heating furnace that provides special boundary conditions for heating only from the bottom and prevents the heating element from being damaged during destructive operations of the heated medium (e.g. by injecting water onto the heated medium).
The heating furnace according to the embodiment of the invention comprises: a furnace body; the heat insulation layer is connected with the inner side wall and the bottom wall of the furnace body so as to form a heating cavity with an open upper end in the furnace body; a heating element mounted to a bottom wall of the heating chamber; a carrier element coupled to a sidewall of the heating cavity, the carrier element positioned above the heating element and vertically spaced apart from the heating element.
According to the heating furnace, the heat insulating layer, the bearing element and the heating element are arranged, so that the heating furnace can meet the special boundary condition requirement of only transferring heat from the bottom to the heated working medium, the heated working medium can be effectively isolated from the heating element, and the heating element can be prevented from being damaged.
According to the heating furnace provided by the embodiment of the invention, the area of the bearing element is larger than the bottom area of the heating cavity, the side wall of the heating cavity is provided with the mounting groove which extends along the radial direction, part of the bearing element extends into the mounting groove, and the bearing element is connected with the periphery of the mounting groove in a sealing manner.
According to the heating furnace provided by the embodiment of the invention, the heat insulation layer comprises a first heat insulation layer, a second heat insulation layer and a third heat insulation layer which are sequentially connected from inside to outside, the outer surface of the third heat insulation layer is connected with the furnace body, and the mounting groove penetrates through the first heat insulation layer and the second heat insulation layer.
According to the heating furnace provided by the embodiment of the invention, the peripheral edge of the bearing element is provided with the bearing flange extending upwards, and the bearing flange is stopped against the inner side of the third heat insulation layer.
The heating furnace according to one embodiment of the invention further comprises an insulating piece, the insulating piece is supported on the bottom wall of the heating cavity and provided with an insulating flanging which is bent upwards, the heating element is supported on the insulating piece, and the peripheral edge of the heating element is positioned on the inner side of the insulating flanging.
According to the heating furnace of one embodiment of the invention, the length of the insulating flange along the up-down direction is larger than the thickness of the heating element along the up-down direction, and the lower surface of the bearing element is supported at the upper end of the insulating flange.
The heating furnace according to one embodiment of the invention further comprises a wiring electrode and a heating electrode, wherein the first end of the wiring electrode is electrically connected with the heating element, and the wiring electrode penetrates through at least part of the heat insulation layer and is connected with the heating electrode.
According to the heating furnace provided by the embodiment of the invention, the heating element comprises the heating disc, two ends of the heating disc are respectively connected with the first ends of the two wiring electrodes, and the heating disc is formed by winding a bar material with a circular section.
According to the heating furnace of one embodiment of the invention, the heating plate comprises a plurality of straight line parts and a plurality of bent parts, the straight line parts are arranged in parallel at intervals, the bent parts are used for connecting two adjacent straight line parts, and the free ends of the two straight line parts positioned at the outermost side are electrically connected with the wiring electrode.
The heating furnace according to one embodiment of the invention further comprises a top cover which is pivotally mounted to the furnace body and which selectively closes the open end of the heating chamber.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a structure of a heating furnace according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a heat generating plate according to an embodiment of the present invention.
Reference numerals:
a heating furnace 100; a heating chamber 101;
a furnace body 1;
a heat insulation layer 2; a first insulating layer 21; a second insulating layer 22; a third insulating layer 23;
a heating element 3; a heat generating plate 31; a straight portion 311; a bent portion 312;
a carrier element 4; a bearing flange 41;
an insulating member 5; an insulating flange 51;
a wiring electrode 61; a heating electrode 62;
and a top cover 7.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
An electric heating furnace according to an embodiment of the present invention will be described with reference to fig. 1 and 2.
Unless otherwise specified, "inside" in the present invention is a direction approaching the heating chamber 101, "outside" is a direction away from the heating chamber 101, and "vertical" is an up-down direction of the heating furnace 100, i.e., a Z direction.
As shown in fig. 1, a furnace body 1 is used as an outer shell of a heating furnace 100, the upper end of the furnace body 1 is open, a heat insulation layer 2, a heating element 3, a bearing element 4 and the like are installed inside the furnace body 1, specifically, the heat insulation layer 2 is connected with the inner side wall and the bottom wall of the furnace body 1 to form a heating cavity 101 with an open upper end in the furnace body 1, the heat insulation layer 2 is used for heat preservation and heat insulation of the heating cavity 101 of the heating furnace 100, the heating element 3 is installed on the bottom wall of the heating cavity 101, the bearing element 4 is connected with the side wall of the heating cavity 101, and the bearing element 4 is located above the heating.
Therefore, the bearing element 4 can be used for bearing a heated working medium, the heating element 3 generates heat, heat radiation is generated and transmitted to the bearing element 4, the heated working medium placed on the bearing element 4 is heated, the heating element 3 is installed on the bottom wall of the heating cavity 101, the special boundary condition requirement that heat is only transmitted from the bottom to the heated working medium can be achieved, the heating element 3 and the bearing element 4 are arranged at intervals in the vertical direction (namely the vertical direction), a gap is formed between the bearing element 4 and the heating element 3, the temperature of the heating element 3 can be transmitted to the bearing element 4 through narrow-gap radiation after the heating element 3 generates heat, and the bearing element 4 directly melts the heated working medium through heat conduction.
In the heating furnace 100 of the present invention, the bearing element 4 is arranged, and the gap is arranged between the bearing element 4 and the heating element 3, so as to effectively isolate the heated working medium from the heating element 3, and when destructive operation is performed on the heated working medium (such as water is injected onto the heated working medium), the heated working medium is effectively isolated from the heating element 3, so that the heating element 3 can be prevented from being damaged.
According to the heating furnace 100 provided by the invention, the heat insulating layer 2, the bearing element 4 and the heating element 3 are arranged, so that the heating furnace 100 can meet the special boundary condition requirement of only transferring heat from the bottom to the heated working medium, the heated working medium can be effectively isolated from the heating element 3, and the heating element 3 can be prevented from being damaged.
Some embodiments of a furnace 100 according to the present invention are described below with reference to fig. 1 and 2.
In some embodiments, as shown in fig. 1, the area of the carrier element 4 is greater than the bottom area of the heating chamber 101, the side wall of the heating cavity 101 is provided with a mounting groove extending along the radial direction, a part of the bearing element 4 extends into the mounting groove, the bearing element 4 is connected with the periphery of the mounting groove in a sealing way, the arrangement of the mounting groove can increase the connecting area of the bearing element 4 and the side wall of the heating cavity 101, so that the connecting strength of the bearing element 4 and the side wall of the heating cavity 101 is higher, and is convenient for sealing, and the installation groove can limit the bearing element 4 in the up-and-down direction, so that the bearing element 4 is firmly arranged on the side wall of the heating cavity 101, the bearing element 4 is kept to be arranged at a distance from the heating element 3, the bearing element 4 is connected with the periphery of the installation groove in a sealing way, so that the heated working medium does not flow into the mounting groove or the heating element 3 from the upper surface of the bearing element 4 after being melted.
In some embodiments, as shown in fig. 1, the insulation layer 2 includes a first insulation layer 21, a second insulation layer 22 and a third insulation layer 23 which are connected in sequence from inside to outside, an outer surface of the third insulation layer 23 is connected with the furnace body 1, that is, the third insulation layer 23 is close to the wall surface of the furnace body 1, an inner wall of the first insulation layer 21 forms a side wall of the heating cavity 101, the second insulation layer 22 is sandwiched between the first insulation layer 21 and the third insulation layer 23, and the insulation layer 2 may be made of a material with a fire-resistant and heat-insulating property.
In some embodiments, as shown in fig. 1, the circumference of the bearing element 4 is provided with a bearing flange 41 extending upward, and the bearing flange 41 is abutted against the inner side of the third heat insulation layer 23, so that the bearing flange 41 can increase the connection area between the bearing element 4 and the heat insulation layer 2, and can prevent the heated working medium from overflowing, and when the sealing connection between the bearing element 4 and the heat insulation layer 2 is in failure, the bearing flange 41 can also block the heated working medium from flowing into the heating element 3 from the upper surface of the bearing element 4, thereby playing a role in protecting the heating element 3.
In some examples, the first thermal insulation layer 21 is made of zirconia material, the second thermal insulation layer 22 and the third thermal insulation layer 23 are made of alumina material, that is, the thermal insulation layer 2 close to the furnace body 1 is made of double-layer alumina material (the second thermal insulation layer 22 and the third thermal insulation layer 23), and the side wall of the heating cavity 101 (the first thermal insulation layer 21) is made of zirconia crucible, so as to ensure good thermal insulation and supporting function.
The carrier element 4 may be made of tungsten plate and graphite plate, so that the carrier element 4 can endure the corrosion of the general heated working medium and provide good high-temperature strength and heat conduction effect. When tungsten or graphite is used as a material for manufacturing the supporting member 4, the heating furnace 100 needs to be operated in a vacuum or protective gas environment, and a vacuum chamber for supporting the furnace body can be provided by referring to the design of a general vacuum type high temperature furnace.
In some embodiments, as shown in fig. 1, the heating furnace 100 further includes an insulating member 5, the insulating member 5 is supported on the bottom wall of the heating cavity 101, and the insulating member 5 is provided with an insulating flange 51 bent upward, the heating element 3 is supported on the insulating member 5, and the periphery of the heating element 3 is located inside the insulating flange 51, so that the heating element 3 is supported in a supporting space formed by the insulating flange 51 and the upper surface of the insulating member 5, the insulating flange 51 separates the side surface of the heating element 3 from the heat insulating layer 2, and the supporting surface of the insulating member 51, which supports the heating element 3, separates the bottom surface of the heating element 3 from the heat insulating layer 2, so that the heating element 3 is supported on the insulating member 5, and the insulating member 5 can perform an insulating process between the heating element 3 and the heat insulating layer 2, thereby ensuring the safety of the heating furnace 100.
In some embodiments, as shown in fig. 1, the length of insulating flange 51 in the up-down direction is greater than the thickness of heating element 3 in the up-down direction, and the lower surface of carrier element 4 is supported on the upper end of insulating flange 51, so that carrier element 4 and heating element 3 are vertically spaced apart, and insulating flange 51 can also serve to support carrier element 4, so that carrier element 4 is more stably supported above heating element 3.
In some embodiments, as shown in fig. 1, the heating furnace 100 further includes a wiring electrode 61 and a heating electrode 62, a first end of the wiring electrode 61 is electrically connected to the heating element 3, and the wiring electrode 61 is connected to the heating electrode 62 through at least a part of the heat insulating layer 2 (e.g. the wiring electrode 61 is connected to the first heat insulating layer 21 and a part of the second heat insulating layer 22), in some examples, the heating furnace 100 may be provided with a through hole which penetrates through the bottom of the furnace body 1 and the heat insulating layer 2 from bottom to top, that is, one end of the through hole is connected to the heating element 3, the other end of the through hole is connected to the outside of the furnace body 1, the wiring electrode 61 penetrates through the through hole from the outside of the furnace body 1 to the heating element 3 and is electrically connected to the heating element 3, at least a part of the heating electrode 62 also penetrates into the through hole, thereby, the power supply can be connected to the heating electrode 62 from the outside of the furnace body 1 and to the heating element 3 through the wiring electrode 61, and the power supply to the heating element 3 is realized.
In some embodiments, as shown in fig. 2, the heating element 3 includes a heating plate 31, two ends of the heating plate 31 are respectively connected to first ends of two connection electrodes 61 (the two connection electrodes 61 are respectively electrically connected to a positive electrode and a negative electrode of a power supply), the heating plate 31 is formed by winding a rod material with a circular cross section, and the surface area of the circular rod material is larger, so that the heating efficiency of the heating element 3 can be enhanced.
In some embodiments, as shown in fig. 2, the heat generating plate 31 includes a plurality of straight portions 311 and a plurality of bent portions 312, the plurality of straight portions 311 are disposed in parallel and spaced apart, the bent portions 312 are used for connecting two adjacent straight portions 311, and the free ends of the two outermost straight portions 311 are electrically connected to the two wiring electrodes 61, respectively, thereby forming the heat generating plate 31 having a shape as shown in fig. 2, wherein the shape of the heat generating plate 31 has high heat generating efficiency and is convenient to process.
In some embodiments, as shown in fig. 1, the heating furnace 100 further comprises a top cover 7, the top cover 7 is pivotally mounted on the furnace body 1, the top cover 7 can selectively close the open end of the heating cavity 101, the top cover 7 can be arranged to reduce heat dissipation of the heating cavity 101, the top cover 7 can be turned over during heating, so that the top cover 7 closes the open end of the heating cavity 101, and the top cover 7 can be turned over and opened when charging or other operations for intervening materials are required, thereby the arrangement of the top cover 7 not only reduces heat dissipation of the heating cavity 101, but also is convenient to operate.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A heating furnace, characterized by comprising:
a furnace body;
the heat insulation layer is connected with the inner side wall and the bottom wall of the furnace body so as to form a heating cavity with an open upper end in the furnace body;
a heating element mounted to a bottom wall of the heating chamber;
a carrier element coupled to a sidewall of the heating cavity, the carrier element positioned above the heating element and vertically spaced apart from the heating element.
2. The heating furnace according to claim 1, wherein the area of the bearing element is larger than the bottom area of the heating cavity, and the side wall of the heating cavity is provided with a mounting groove extending in the radial direction, part of the bearing element extends into the mounting groove, and the bearing element is connected with the periphery of the mounting groove in a sealing manner.
3. The heating furnace according to claim 2, wherein the heat insulation layer comprises a first heat insulation layer, a second heat insulation layer and a third heat insulation layer which are sequentially connected from inside to outside, the outer surface of the third heat insulation layer is connected with the furnace body, and the mounting groove penetrates through the first heat insulation layer and the second heat insulation layer.
4. The heater according to claim 3, wherein the peripheral edge of the bearing element is provided with a bearing flange extending upward, and the bearing flange abuts against the inner side of the third thermal insulation layer.
5. The heater according to claim 1, further comprising an insulating member supported on a bottom wall of the heating chamber and provided with an insulating flange bent upward, wherein the heating element is supported on the insulating member, and a peripheral edge of the heating element is located inside the insulating flange.
6. The heating furnace according to claim 5, wherein the insulating flange has a length in the up-down direction larger than a thickness of the heating element in the up-down direction, and the lower surface of the carrier member is supported on an upper end of the insulating flange.
7. The heater according to claim 1, further comprising a terminal electrode and a heating electrode, wherein a first end of the terminal electrode is electrically connected to the heating element, and wherein the terminal electrode is connected to the heating electrode through at least a portion of the insulating layer.
8. The heating furnace according to claim 7, wherein the heating element comprises a heating plate, two ends of the heating plate are respectively connected with the first ends of the two wiring electrodes, and the heating plate is formed by winding a rod material with a circular cross section.
9. The heating furnace according to claim 8, wherein the heat generating tray includes a plurality of straight portions arranged in parallel at a spacing, and a plurality of bent portions for connecting two adjacent straight portions, and free ends of the two straight portions located outermost are electrically connected to the terminal electrodes.
10. The heater according to any one of claims 1 to 9, further comprising a top cover pivotally mounted to the furnace body, the top cover selectively closing the open end of the heating chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943492.0A CN110595216B (en) | 2019-09-30 | 2019-09-30 | Heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943492.0A CN110595216B (en) | 2019-09-30 | 2019-09-30 | Heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110595216A true CN110595216A (en) | 2019-12-20 |
| CN110595216B CN110595216B (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910943492.0A Active CN110595216B (en) | 2019-09-30 | 2019-09-30 | Heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110595216B (en) |
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| CN205373401U (en) * | 2016-01-07 | 2016-07-06 | 广元恒大铝业有限公司 | Novel no dead angle aluminium sediment smelting furnace |
| CN206176999U (en) * | 2016-11-15 | 2017-05-17 | 云梦县三湖浩大铸造有限公司 | Energy -saving blast furnace of far infrared |
| CN211695907U (en) * | 2019-09-30 | 2020-10-16 | 国核华清（北京）核电技术研发中心有限公司 | Heating furnace |
-
2019
- 2019-09-30 CN CN201910943492.0A patent/CN110595216B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852015Y (en) * | 2005-10-18 | 2006-12-27 | 刘祥清 | Internal heating zinc boiler |
| CN105300098A (en) * | 2015-10-25 | 2016-02-03 | 重庆市特泰机械制造有限公司 | Temperature-control casting electric furnace |
| CN205373401U (en) * | 2016-01-07 | 2016-07-06 | 广元恒大铝业有限公司 | Novel no dead angle aluminium sediment smelting furnace |
| CN206176999U (en) * | 2016-11-15 | 2017-05-17 | 云梦县三湖浩大铸造有限公司 | Energy -saving blast furnace of far infrared |
| CN211695907U (en) * | 2019-09-30 | 2020-10-16 | 国核华清（北京）核电技术研发中心有限公司 | Heating furnace |
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