CN202813488U - Electric heating furnace - Google Patents
Electric heating furnace Download PDFInfo
- Publication number
- CN202813488U CN202813488U CN 201220519737 CN201220519737U CN202813488U CN 202813488 U CN202813488 U CN 202813488U CN 201220519737 CN201220519737 CN 201220519737 CN 201220519737 U CN201220519737 U CN 201220519737U CN 202813488 U CN202813488 U CN 202813488U
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- furnace
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- stove core
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Abstract
The utility model relates to an electric heating furnace which comprises a casing. A furnace cavity with an accommodating cavity is defined by the casing, an electric heating wire is arranged in the furnace cavity, a fan is arranged at the bottom of the furnace cavity, an inner furnace core is arranged above the fan in the furnace cavity, a plurality of air flow through holes for air flow to circulate are arranged on the inner furnace core along the vertical direction, and the electric heating wire is provided with a portion penetrating through the air flow through holes. The electric heating furnace is simple in structure, and during use, hot air is small in resistance and smooth in discharging.
Description
Technical field
The utility model relates to a kind of electrothermal furnace.
Background technology
Notification number is that the Chinese patent application " electric furnace of culinary art usefulness " of CN 2384133Y discloses a kind of electric furnace that adopts the electrical heating wire heat temperature raising, comprise shell, shell surrounds a furnace chamber with certain accommodation space, the furnace chamber upper end offers up big and down small fire door, the furnace chamber bottom is provided with bottom, the bottom center offers through hole, the furnace chamber center is provided with cylindrical flue, be placed with along the furnace wall to the furnace chamber center in the furnace chamber annular in order to the air feed conductance to the upper guide plate and the bottom guide that flow, upper guide plate and bottom guide are pegged graft and are formed the sealing gas channel that lengthens, between flue and upper bottom guide sidewall, be provided with heating wire, heating wire in the lateral along the vertical direction dish be located in the furnace chamber, be equipped with packing layer around the fire door above the upper guide plate, be equipped with lower packing layer below the bottom guide, be provided with the sandwich passage that air feed stream passes through between lower packing layer and the furnace wall, offer in the through hole that the furnace chamber bottom of lower packing layer below is offered and be equipped with fan, fan enters throughput and the gas flow temperature of electric furnace in order to adjusting.During use, air-flow enters in the furnace chamber under the effect of fan, enter the circulation canal that forms between upper guide plate and the bottom guide by the sandwich passage between lower packing layer and the furnace wall, enter at last in the circulation canal of heating wire coiled, and then from the fire door discharge, this electrothermal furnace fire door can constantly spray 700 ℃～780 ℃ high temperature gas flow.But there is following defective in this heating furnace: spray by fire door at last from the furnace wall to the furnace chamber center flow in the circulation canal that 1, the circulation canal that intert to form mutually along upper guide plate, bottom guide of air-flow and heating wire winding become, thereby air-flow has some setbacks, press in furnace chamber, forming, heating wire is in furnace chamber, one end passes lower packing layer and is fixed on the socket, and the other end is unsettled, therefore under the impact of interior pressure, cause easily heating wire to tilt, stop up gas channel; 2, do not establish heat-barrier material between gas channel and the furnace wall, so heat can scatter and disappear along the furnace wall reduction heat utilization rate.
The utility model content
The purpose of this utility model is to propose the unobstructed electrothermal furnace of a kind of thermal current discharging.
For addressing the above problem, the technical solution adopted in the utility model is:
Electrothermal furnace, comprise shell, shell surrounds the furnace chamber with an accommodation space, be provided with heating wire in the furnace chamber, the furnace chamber bottom is provided with fan, it is characterized in that: be provided with inner stove core in the fan top in the described furnace chamber, described inner stove core offers a plurality of air-flow through holes for the air-flow circulation along the vertical direction, and described heating wire has the part that is located in the described air-flow through hole.
Be fixed with outer combustion chamber in the described furnace chamber, outer combustion chamber open top, the bottom is provided with bottom, described inner stove core is threaded onto described outer combustion chamber inside and fixes with outer combustion chamber, described fan comprises the blade of being located between bottom and the inner stove core bottom and the connecting axle that is used for being connected blade and corresponding motor, is provided with the through hole that the described connecting axle of confession penetrates in the middle part of the bottom.
The diameter of described through hole and the equal diameters of described connecting axle.
Be folded with heat-barrier material between described outer combustion chamber inwall and the inner stove core outer peripheral face.
Described heating wire detours on the upper and lower end face of the inner stove core between the hole wall of described air-flow through hole and each air-flow through hole.
The termination of described heating wire passes shell and is connected with the temperature regulation switch that housing exterior arranges.
Described fan is connected with the wind speed by-pass cock that housing exterior arranges by wire.
The beneficial effects of the utility model are: be provided with heating wire in furnace chamber, the furnace chamber bottom is provided with fan, be provided with inner stove core in the fan top in the furnace chamber, inner stove core offers a plurality of air-flow through holes for the air-flow circulation along the vertical direction, heating wire has the part that is located in the described air-flow through hole, air-flow is by after the heating of heating wire, under the effect of fan, air-flow in the inner stove core is fully flowed with after heating wire contacts, spray from the air-flow through hole, because the air-flow through hole is offered along the inner stove core above-below direction, the air-flow ejection can be obstructed, and inner generation pressure is little, and resistance wire has the part that is arranged in the air-flow through hole, therefore heating wire can not have a down dip and stops up gas channel in interior pressure effect, so the air-flow of the ejection of the electrothermal furnace in the utility model is unobstructed, evenly.
Further, the through hole that outer combustion chamber bottom is offered and the connecting axle equal diameters that penetrates, so air-flow can not be involved in from the bottom, can make the air of outer combustion chamber inside fully mobile, guarantees the ejection of air-flow high temperature.
Further, outside between combustion chamber inwall and the inner stove core outer peripheral face sandwiched heat-barrier material can prevent effectively that heat from along the scattering and disappearing of furnace wall, improving heat utilization efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of Fig. 1 housing 1;
Fig. 3 is the structural representation of Fig. 1 China and foreign countries combustion chamber 2;
Fig. 4 is the structural representation of inner stove core 3 among Fig. 1.
The specific embodiment
Embodiment of the present utility model is elaborated to present embodiment below in conjunction with accompanying drawing shown in Fig. 1～4:
The utility model embodiment is a kind of embodiment of the electrothermal furnace that uses as daily kitchen tools, comprise that the bottom is that cylinder top is the shell 1 of frustum structure, shell 1 surrounds the furnace chamber with certain accommodation space, be fixed with outer combustion chamber 2 in the furnace chamber, outer combustion chamber 2 is open top, the bottom is provided with the tubular construction of bottom, inner stove core 3 is threaded onto described outer combustion chamber 2 inside and fixes with outer combustion chamber 2, the bottom center of outer combustion chamber 2 is provided with through hole, the through hole that its bottom is offered is provided with fan 7, fan 7 comprises the blade between the bottom of being located at outer combustion chamber 2 and inner stove core 3 bottoms and is used for being connected the connecting axle of blade and corresponding motor, described connecting axle penetrates from the through hole of the bottom center setting of outer combustion chamber 2, and the diameter of described connecting axle equates with the aperture of described through hole, therefore after connecting axle penetrates outer combustion chamber bottom, outer combustion chamber bottom consists of enclosed construction, be folded with heat insulation foam 6 between outer combustion chamber 2 inwalls and inner stove core 3 outer peripheral faces, inner stove core 3 is cylinder, it offers a plurality of air-flow through holes 4 along the vertical direction, be equipped with heating wire 5 in described each air-flow through hole 4, described heating wire 5 detours on the upper and lower end face of the inner stove core 3 between the hole wall of air-flow through hole 4 and each air-flow through hole 4 aperture, the termination of heating wire 5 passes shell and is connected with the temperature regulation switch 8 of shell 1 outer setting, and fan 7 is connected by the wind speed by-pass cock 9 of wire with shell 1 outer setting.
During use, connect the 220V power supply and make heating wire 5 energisings, open wind speed by-pass cock 9, regulate wind speed, heating along with heating wire 5, air in the electrothermal furnace constantly heats, and the bottom of outer combustion chamber 2 offers the through hole that the connecting axle for fan 7 penetrates, when penetrating connecting axle, bottom sealing with outer combustion chamber 2, avoid bottom periphery air-flow to be involved in, fan 7 makes the abundant convection current of air in the air-flow through hole 4, and the hot gas after the 4 interior heating of air-flow through hole is blown out electrothermal furnace, air-flow through hole 4 is along the axial direction setting of inner stove core 3 in the present embodiment, make air-flow unobstructed, the resistance that is subject to is less, presses little in producing in furnace chamber.Wind speed by-pass cock 9 adjustable fan wind speed, wind speed is larger, and the temperature of thermal current is higher, can regulate the ejection temperature according to temperature regulation switch 8, and the temperature of the thermal current that this electrothermal furnace blows out can reach 800 ℃～900 ℃.Be folded with heat insulation foam 6 between combustion chamber 2 and the inner stove core 3 outside, so this electrothermal furnace shell 1 place's temperature is very low, has effectively avoided heat loss, improves heat utilization rate.
This electrothermal furnace shell can reach the effect of heat insulation solar heat protection, adopts preferably heating wire so that greatly improve the service life of the electrothermal furnace in the present embodiment, even can reach 6 to 7 months.
Adopt in the present embodiment outer combustion chamber 2 that inner stove core 3 is fixed in fan 7 tops, also outer combustion chamber can be set in other embodiments, ventilative board is set on the furnace chamber inwall or in furnace chamber inner stove core is supported on ventilative board is located at above the fan but directly inner stove core is fixed on.
Claims (7)
1. electrothermal furnace, comprise shell, shell surrounds the furnace chamber with an accommodation space, be provided with heating wire in the furnace chamber, the furnace chamber bottom is provided with fan, it is characterized in that: be provided with inner stove core in the fan top in the described furnace chamber, described inner stove core offers a plurality of air-flow through holes for the air-flow circulation along the vertical direction, and described heating wire has the part that is located in the described air-flow through hole.
2. electrothermal furnace according to claim 1, it is characterized in that: be fixed with outer combustion chamber in the described furnace chamber, outer combustion chamber open top, the bottom is provided with bottom, described inner stove core is threaded onto described outer combustion chamber inside and fixes with outer combustion chamber, described fan comprises the blade of being located between bottom and the inner stove core bottom and the connecting axle that is used for being connected blade and corresponding motor, is provided with the through hole that the described connecting axle of confession penetrates in the middle part of the bottom.
3. electrothermal furnace according to claim 2 is characterized in that: the diameter of described through hole and the equal diameters of described connecting axle.
4. electrothermal furnace according to claim 2 is characterized in that: be folded with heat-barrier material between described outer combustion chamber inwall and the inner stove core outer peripheral face.
5. the described electrothermal furnace of any one according to claim 1～4 is characterized in that: described heating wire detours on the upper and lower end face of the inner stove core between the hole wall of described air-flow through hole and each air-flow through hole.
6. the described electrothermal furnace of any one according to claim 1～4 is characterized in that: the termination of described heating wire passes shell and is connected with the temperature regulation switch that housing exterior arranges.
7. the described electrothermal furnace of any one according to claim 1～4 is characterized in that: described fan is connected with the wind speed by-pass cock that housing exterior arranges by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519737 CN202813488U (en) | 2012-10-11 | 2012-10-11 | Electric heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519737 CN202813488U (en) | 2012-10-11 | 2012-10-11 | Electric heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202813488U true CN202813488U (en) | 2013-03-20 |
Family
ID=47872352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220519737 Expired - Fee Related CN202813488U (en) | 2012-10-11 | 2012-10-11 | Electric heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202813488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697505A (en) * | 2013-12-20 | 2014-04-02 | 陈坚胜 | Household electric furnace |
| CN110230828A (en) * | 2018-03-05 | 2019-09-13 | 谢荣东 | Household energy storage electricity cooks furnace |
-
2012
- 2012-10-11 CN CN 201220519737 patent/CN202813488U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697505A (en) * | 2013-12-20 | 2014-04-02 | 陈坚胜 | Household electric furnace |
| CN110230828A (en) * | 2018-03-05 | 2019-09-13 | 谢荣东 | Household energy storage electricity cooks furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20141011 |
|
| EXPY | Termination of patent right or utility model |