CN105934008B - High-low voltage electric heating module - Google Patents
High-low voltage electric heating module Download PDFInfo
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- CN105934008B CN105934008B CN201610541627.7A CN201610541627A CN105934008B CN 105934008 B CN105934008 B CN 105934008B CN 201610541627 A CN201610541627 A CN 201610541627A CN 105934008 B CN105934008 B CN 105934008B
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- electric heating
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- strip
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/62—Heating elements specially adapted for furnaces
- H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
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Abstract
The invention provides a high-low voltage electric heating module, which relates to the field of electric heating furnaces and comprises a frame and a plurality of electric heating belts, wherein each electric heating belt is uniformly bent into a plurality of sections, and the plurality of sections of bent parts are mutually parallel; a plurality of electric heating belts are sequentially connected in series at the end part; a plurality of electric heating tapes are folded and then stacked; at least three insulating ceramic strips are arranged between every two adjacent electric heating strips and on the outer sides of the two electric heating strips at the two ends; each insulating porcelain strip is provided with a plurality of insulating sawteeth, and each section of bent part is clamped between two adjacent insulating sawteeth; the frame comprises at least one circle of rectangular frame, at least three pairs of parallel slots are fixedly connected inside the at least one circle of rectangular frame, and the at least three pairs of slots are perpendicular to the rectangular frame; two ends of each insulating ceramic strip are respectively inserted into a pair of slots. The electric heating furnace solves the technical problems that the electric heating furnace in the prior art is not easy to maintain, needs to be shut down and cannot use high voltage electricity during maintenance.
Description
Technical Field
The invention relates to the technical field of electric heating furnaces, in particular to a high-low voltage electric heating module.
Background
The traditional fuel energy sources comprise coal, petroleum, charcoal, fuel gas and the like, along with the continuous development of the industry, the air pollution reaches the non-reform and irrevocable era, and along with the coming out of high-power electric heating equipment, various contradictions that the production development is restricted by a plurality of factors such as wanting to change electricity, having no capital, wanting to change gas, having high gas source construction cost, having insufficient gas source and the like are solved.
However, the conventional electric heating furnace has the advantages of fixed power and rated voltage, fixed internal electric heating elements, difficulty in maintaining and changing the power, difficulty in maintaining after leaving a factory, difficulty in disassembling the whole device, difficulty in stopping the furnace when in maintenance, and delay in heating time.
Based on this, the invention provides a high-low voltage electric heating module to solve the technical problems.
Disclosure of Invention
The invention aims to provide a high-low voltage electric heating module to solve the technical problems that an electric heating furnace in the prior art is not easy to maintain, needs to be shut down for maintenance and cannot use high voltage electricity.
The invention provides a high-low voltage electric heating module, which comprises a frame and a plurality of electric heating tapes, wherein each electric heating tape is uniformly bent into a plurality of sections, and the plurality of sections of bent parts are mutually parallel; the end parts of the plurality of electric heating belts are sequentially connected in series;
a plurality of electric heating tapes are bent and then stacked; at least three insulating porcelain strips are arranged between every two adjacent electric heating strips and on the outer sides of the two electric heating strips at the two ends; at least three insulating porcelain strips are perpendicular to the bent part; the at least three insulating porcelain strips are uniformly arranged along the length direction of the bent part, wherein two insulating porcelain strips are positioned at two ends of the bent part; each insulating porcelain strip is provided with a plurality of insulating sawteeth, and each section of the bent part is clamped between two adjacent insulating sawteeth;
the frame comprises at least one circle of rectangular frame, at least three pairs of parallel slots are fixedly connected inside the at least one circle of rectangular frame, and the at least three pairs of slots are perpendicular to the rectangular frame; and two ends of each insulating porcelain strip are respectively inserted into a pair of slots.
Optionally, the surfaces of the frame and the electric heating belt are insulated by nanometer insulating materials. The surfaces of the frame and the electric heating belt are respectively provided with an insulating layer by adopting a high-temperature-resistant nano insulating material, so that the insulating treatment protection is made, and after the surfaces of the whole frame and the electric heating belt are subjected to the insulating treatment, the phenomena of conduction and power bending can not be generated when the electric heating belt is used in a high-voltage state. Under the protection of the insulating material, the metal material can keep consistent rigidity at 1100 ℃, and cannot deform or be damaged, so that the material cost is greatly saved. The insulation protection has been subjected to a 42KV withstand voltage test, and can not be broken down under high voltage, so that the safety of the insulation protection is ensured.
Optionally, the surface of the electric heating belt is a reinforced concave-convex belt surface. The strip surface design can still keep certain rigidity when the surface temperature reaches 1100 ℃ and high temperature, and cannot bend or fall.
Optionally, the frame is further provided with a detachable handle. A detachable movable handle is adopted for mounting the module during feeding and discharging, so that the module can be conveniently pushed and pulled out, and the module is detached after use, does not occupy the space of a cavity and is not damaged by high-temperature roasting.
Optionally, the electric heating tape is a high rare earth alloy tape. High temperature strength, strong corrosion resistance, no corrosion, no slag falling, suitability for any severe conditions and 95 percent of recovery rate.
Optionally, a plurality of electric heating strips are connected through a hydraulic die in a one-step forming mode without welding seam interfaces. The electric heating belt is firmly connected, and the interface is not easy to break.
Optionally, the outermost ends of the electric heating tapes at the two ends are respectively connected with a high-temperature-resistant connecting wire, and a high-temperature-resistant interface is arranged on the connecting wire. The reserved interface is convenient for combination among a plurality of heating modules, the form of the interface can be disassembled and used as a plug, and various high-temperature-resistant plugs and sockets are arranged in the existing electric appliance elements and can be selected according to the requirements of customers.
Optionally, the shape of slot is rectangular piece, and one of them length broad face is provided with the bar groove, with the opposite side that the bar groove is relative with the inner wall rigid coupling of rectangle frame. The arrangement is convenient for processing, the industrial processing is simple, and the insertion of the insulating ceramic strips is convenient.
Optionally, each through hole is formed in each of the two ends of the bar-shaped groove, each threaded hole is formed in each of the two ends of the insulating porcelain bars, and the two ends of the insulating porcelain bars are fixed in the bar-shaped grooves through high-temperature-resistant insulating bolts. The both ends insulating seal of slot, the preferred porcelain insulator strip of fixing through bolt etc. convenient to detach and change prevent that the porcelain strip from droing.
Optionally, the insulation saw teeth are square teeth. The two ends of the square saw teeth are smooth, so that the surface of the electric heating belt can not be damaged, and the surface insulating layer can not be damaged, thereby causing electric leakage and conduction.
According to the high-low voltage electric heating module provided by the invention, the electric heating tapes are electrical appliance elements capable of being electrified and heating, and are made of alloy, and a plurality of electric heating tapes with certain lengths are connected in series according to the power utilization rate and the heat exchange requirement so as to meet the requirement of specified voltage. In order to save space, each ribbon is bent in a serpentine shape and then stacked together. A plurality of insulating ceramic strips are placed between two layers of resistance belts and on the outermost side of the resistance belts stacked together, so that the phenomena of conduction and electrification between the belt surfaces of two electric heating belts in a module are prevented, the insulating effect is achieved, the conduction and electrification between the belt surfaces of the electric heating belts between the modules are also prevented, and the fixing effect is also achieved. Every kink is cliied with convex insulating sawtooth, can fix the electric heat tape, also separates two sections kinks, prevents to conduct electricity between the kink, ensures not warp under the high temperature state, and not lax, but can adapt to the free flexible under high temperature and the low temperature operating mode.
And a plurality of insulating ceramics are fixed through the slots to prevent the insulating ceramics from moving. Meanwhile, the heating module is convenient to integrally take out. The both ends of slot are insulating sealed, preferably fix the insulating porcelain strip through bolt etc. convenient to detach and change, and combine very closely, indeformable after the high temperature. The frame and the slots are made of high-temperature resistant materials and only contact with the ceramic strips to prevent electric conduction.
Like this, whole module is a holistic heating module, can be solitary place and heat in the electric heater, also can a plurality of heating modules establish ties together or parallelly connected place in the electric heater internal, through placing different numbers, changes different output, adapts to different mains voltage, can be applied to high pressure also can be applied to the low pressure. Meanwhile, the maintenance is convenient, the furnace shutdown is not needed, only the damaged electric heating element needs to be drawn out during the maintenance, the whole module is replaced together, the convenience is high, and the improvement of the operation cost caused by the furnace shutdown is reduced.
Therefore, compared with the prior art, the invention has the advantages of low operation cost, capability of adapting to power supplies with different voltages, different heating powers, convenience in maintenance and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a high and low voltage electric heating module;
FIG. 2 is a sectional view taken along line A of FIG. 1;
FIG. 3 is a sectional view taken along line B of FIG. 1;
fig. 4 is a partial schematic view of the combination of the porcelain insulator strip and the ribbon heater.
Reference numerals are as follows:
1-high and low voltage electric heating module; 2-an electric heating belt; 3-bending part;
4-insulating porcelain strips; 5-insulating saw teeth; 6-a rectangular frame;
7-slot.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example one
FIG. 1 is a front view of a high and low voltage electric heating module; FIG. 2 is a sectional view taken along line A of FIG. 1; FIG. 3 is a sectional view taken along line B of FIG. 1; fig. 4 is a partial schematic view of the combination of the porcelain insulator strip and the ribbon heater. As shown in fig. 1-4, in the present embodiment, a high-low voltage electric heating module is provided, where the high-low voltage electric heating module 1 includes an insulating frame and a plurality of electric heating tapes 2, each electric heating tape 2 is uniformly bent into a plurality of sections, and the plurality of sections of bent portions 3 are parallel to each other; the end parts of the plurality of electric heating belts 2 are sequentially connected in series;
a plurality of electric heating tapes 2 are bent and then stacked; at least three insulating porcelain strips 4 are arranged between every two adjacent electric heating strips 2 and on the outer sides of the two electric heating strips 2 at the two ends; at least three insulating porcelain strips 4 are all perpendicular to the bending part 3; at least three insulating porcelain strips 4 are uniformly arranged along the length direction of the bent part 3, wherein two insulating porcelain strips 4 are positioned at two ends of the bent part 3; each insulating porcelain strip 4 is provided with a plurality of insulating sawteeth 5, and each section of the bent part 3 is clamped between two adjacent insulating sawteeth 5;
the frame comprises at least one circle of rectangular frame 6, at least three pairs of parallel slots 7 are fixedly connected inside the at least one circle of rectangular frame 6, and the at least three pairs of slots 7 are perpendicular to the rectangular frame 6; two ends of each insulating porcelain strip 4 are respectively inserted into the pair of slots 7.
Preferably, the shape of the slot is a rectangular block, one of the long and wide surfaces is provided with a strip-shaped slot, and the other side opposite to the strip-shaped slot is fixedly connected with the inner wall of the rectangular frame. The arrangement is convenient for processing, the industrial processing is simple, and the insertion of the insulating ceramic strips is convenient.
Further, every the both ends in bar groove are provided with the through-hole respectively, every the both ends of insulating porcelain strip all set up the screw hole, many the both ends of insulating porcelain strip are fixed through high temperature resistant insulating bolt in the bar inslot.
According to the heating module, the electric heating strips 2 are electrical elements capable of being electrified and heating, are made of alloy, and are connected in series according to the electrical efficiency and the heat exchange requirement so as to meet the requirement of specified voltage. In order to save space, each ribbon 2 is bent in a serpentine shape and then stacked together. A plurality of insulating ceramic strips 4 are arranged between two layers of resistance belts and on the outermost side of the resistance belts stacked together, so that the phenomena of conduction and electrification between the belt surfaces of two electric heating belts 2 in a module are prevented, the insulation effect is achieved, the conduction and electrification between the belt surfaces of the electric heating belts between the modules are also prevented, the current can only flow along the length direction of the electric heating belts, and the fixing effect is also achieved. Every kink 3 is cliied with convex insulating sawtooth 5, can fix electric heat tape 2, also separates two sections kinks 3, prevents to conduct electricity between the kink 3, ensures not warp under the high temperature state, and is not lax, but can adapt to the free flexible under high temperature and the low temperature operating mode.
The plurality of insulating porcelain strips 4 are fixed by the slots 7 and prevented from moving. Meanwhile, the heating module is convenient to integrally take out. The both ends of slot 7 are insulating sealed, preferably fix insulating porcelain strip 4 through bolt etc. convenient to detach and change prevents that the porcelain strip from droing, and combines very closely, indeformable after the high temperature. The frame and the slots 7 are made of high temperature resistant material and only contact with the ceramic strips to prevent conduction.
Like this, whole module is a holistic heating module, can be solitary place and heat in the electric heater, also can establish ties together or parallelly connected placing in the electric heater internally for a plurality of heating modules, through placing different numbers, change different output, simultaneously, also convenient maintenance does not need the blowing out, only need during the maintenance take out the electric heating element of damage can, whole module is changed together, ten minutes is convenient, has also reduced the improvement of the operation cost that the blowing out brought.
In the alternative of this embodiment, the frame adopts high temperature resistant 310S material to make to all adopt high temperature resistant nanometer insulating material to set up the insulating layer on the surface of these high temperature resistant metal material surfaces and electric heat tape, done the insulation treatment protection, whole frame and electric heat tape surface have done the insulation treatment after, use under the high-tension electricity state and can not produce the electric conduction and lie prone to the electricity phenomenon, guarantee the security of whole module, danger can not appear. Under the protection of the insulating material, the metal material can keep consistent rigidity at 1100 ℃, so that the metal material cannot deform or be damaged, and the material cost is greatly saved. The insulation protection has been subjected to a 42KV withstand voltage test, and can not be broken down under high voltage, so that the safety of insulation protection is ensured.
And because all metal surfaces of the module are insulated and protected, the furnace body can be in zero-distance contact with field construction personnel under a high-pressure state, and the safety and the reliability are high.
Moreover, due to the adoption of bending and stacking, the power of a plurality of the electric wires can be increased and combined at will, the power of the plurality of the electric wires can be freely combined between 50KW and 500KW, and the occupied space is small.
In an alternative of this embodiment, the frame is further provided with a detachable handle.
The module pulling handle is reasonable in arrangement, and the detachable movable handle is adopted for mounting the module when the module enters and exits the oven, so that the module can be conveniently pushed and pulled out, and the module can be dismounted after being used, so that the cavity space is not occupied, and the module is not damaged by high-temperature roasting.
In an alternative of this embodiment, the electric heating tape is a high rare earth alloy tape.
The nickel-based chromium alloy is preferably adopted, has high-temperature strength, strong corrosion resistance, no corrosion and no slag falling, is suitable for being used under any severe conditions, has the recovery rate of 95 percent, is convenient to maintain, only needs a few minutes for replacement, and does not influence normal production. The wide foil belt is prepared in advance through a hydraulic stretching process, so that the heating surface area can be increased, the material cost is saved by more than 40%, the wide foil belt is not easy to deform at high temperature, the high-temperature strength is increased, and the service life is prolonged by more than 5 times.
In an alternative of this embodiment, as shown in fig. 1-4, the surface of the electric heating belt is a reinforced concave-convex belt surface.
The concave-convex electric heating belt with the surface can be formed at one time by adopting a hydraulic die, and the surface design can still keep certain rigidity when the surface temperature reaches 1100 ℃ and the high temperature can not be bent or fallen.
In an alternative of this embodiment, a plurality of the electric heating tapes are connected in series through a high-temperature-resistant connecting wire. Furthermore, the outermost ends of the electric heating belts at the two ends are respectively connected with a high-temperature-resistant connecting wire, and a high-temperature-resistant interface is arranged on the connecting wire. Or a plurality of electric heating belts are connected through a hydraulic mould in a one-step forming mode without welding seam interfaces.
The electric heating belt is firmly connected, and the interface is not easy to break. The reserved interface facilitates combination among the heating modules, the form of the interface can be detached and used as a plug, and various high-temperature-resistant plugs and sockets are arranged in the existing electric appliance elements and can be selected according to customer requirements.
In an alternative of this embodiment, as shown in fig. 2, the insulating serrations are square teeth.
The two ends of the square saw teeth are smooth, so that the surface of the electric heating belt cannot be damaged, and the surface insulating layer cannot be damaged, thereby causing electric leakage and conduction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A high-low voltage electric heating module is characterized by comprising a frame and a plurality of electric heating tapes, wherein each electric heating tape is uniformly bent into a plurality of sections, and the plurality of sections of bent parts are mutually parallel; the end parts of the plurality of electric heating belts are sequentially connected in series;
a plurality of electric heating tapes are bent and then stacked; at least three insulating porcelain strips are arranged between every two adjacent electric heating strips and on the outer sides of the two electric heating strips at the two ends; at least three insulating porcelain strips are perpendicular to the bent part; the at least three insulating porcelain strips are uniformly arranged along the length direction of the bent part, wherein two insulating porcelain strips are positioned at two ends of the bent part; each insulating porcelain strip is provided with a plurality of insulating sawteeth, and each section of the bent part is clamped between two adjacent insulating sawteeth;
the frame comprises at least one circle of rectangular frame, at least three pairs of parallel slots are fixedly connected inside the at least one circle of rectangular frame, and the at least three pairs of slots are perpendicular to the rectangular frame; two ends of each insulating porcelain strip are respectively inserted into a pair of slots; the slots are rectangular blocks, one long wide surface is provided with a strip-shaped slot, and the other side opposite to the strip-shaped slot is fixedly connected with the inner wall of the rectangular frame; through holes are formed in two ends of each strip-shaped groove respectively, threaded holes are formed in two ends of each insulating porcelain strip, and two ends of the insulating porcelain strips are fixed in the strip-shaped grooves through high-temperature-resistant insulating bolts;
the insulation saw teeth are square teeth.
2. The module of claim 1, wherein the surfaces of the frame and the ribbon heater are insulated by nano-insulating material.
3. A high and low voltage electric heating module according to claim 1, wherein the electric heating belt surface is a reinforced concave-convex belt surface.
4. A high and low voltage electric heating module according to claim 1, wherein the frame is further provided with a detachable handle.
5. The high and low voltage electric heating module of claim 1, wherein the electric heating tape is a high rare earth alloy tape.
6. The high and low voltage electric heating module according to claim 1, wherein a plurality of electric heating belts are connected through a hydraulic die in a one-step forming mode without welding seam interfaces.
7. The high-low voltage electric heating module according to claim 1, wherein the outermost ends of the electric heating tapes at the two ends are respectively connected with a high temperature resistant connecting wire, and the connecting wires are provided with high temperature resistant interfaces.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610541627.7A CN105934008B (en) | 2016-07-11 | 2016-07-11 | High-low voltage electric heating module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610541627.7A CN105934008B (en) | 2016-07-11 | 2016-07-11 | High-low voltage electric heating module |
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| Publication Number | Publication Date |
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| CN105934008A CN105934008A (en) | 2016-09-07 |
| CN105934008B true CN105934008B (en) | 2022-12-06 |
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| CN201610541627.7A Active CN105934008B (en) | 2016-07-11 | 2016-07-11 | High-low voltage electric heating module |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB333457A (en) * | 1928-10-23 | 1930-08-14 | British Thomson Houston Co Ltd | Improvements in and relating to electric furnaces |
| CN1039500A (en) * | 1988-05-20 | 1990-02-07 | 莫塞巴克制造公司 | The resistance grid that central authorities ventilate |
| CN101644536A (en) * | 2009-09-08 | 2010-02-10 | 丹阳新辉电炉制造有限公司 | Vacuum heating furnace for smelting spongy titanium and spongy zirconium |
| CN101944414A (en) * | 2010-08-09 | 2011-01-12 | 华中科技大学 | High-power pulse linear dummy load |
| CN203517974U (en) * | 2013-08-14 | 2014-04-02 | 深圳市联创电器实业有限公司 | Electric heater provided with heating unit with metal resistance straps, and heating unit of electric heater |
| CN204029505U (en) * | 2014-07-04 | 2014-12-17 | 上海鹰峰电子科技有限公司 | Belt Power Resistor |
| CN204787854U (en) * | 2015-07-13 | 2015-11-18 | 天津三元鼎盛科技有限公司 | Soft resistance wire heater device |
| CN205883612U (en) * | 2016-07-11 | 2017-01-11 | 季国民 | High -low pressure electric heating module |
-
2016
- 2016-07-11 CN CN201610541627.7A patent/CN105934008B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB333457A (en) * | 1928-10-23 | 1930-08-14 | British Thomson Houston Co Ltd | Improvements in and relating to electric furnaces |
| CN1039500A (en) * | 1988-05-20 | 1990-02-07 | 莫塞巴克制造公司 | The resistance grid that central authorities ventilate |
| CN101644536A (en) * | 2009-09-08 | 2010-02-10 | 丹阳新辉电炉制造有限公司 | Vacuum heating furnace for smelting spongy titanium and spongy zirconium |
| CN101944414A (en) * | 2010-08-09 | 2011-01-12 | 华中科技大学 | High-power pulse linear dummy load |
| CN203517974U (en) * | 2013-08-14 | 2014-04-02 | 深圳市联创电器实业有限公司 | Electric heater provided with heating unit with metal resistance straps, and heating unit of electric heater |
| CN204029505U (en) * | 2014-07-04 | 2014-12-17 | 上海鹰峰电子科技有限公司 | Belt Power Resistor |
| CN204787854U (en) * | 2015-07-13 | 2015-11-18 | 天津三元鼎盛科技有限公司 | Soft resistance wire heater device |
| CN205883612U (en) * | 2016-07-11 | 2017-01-11 | 季国民 | High -low pressure electric heating module |
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| CN105934008A (en) | 2016-09-07 |
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