CN108426454A - A kind of chamber type electric resistance furnace - Google Patents
A kind of chamber type electric resistance furnace Download PDFInfo
- Publication number
- CN108426454A CN108426454A CN201810289210.5A CN201810289210A CN108426454A CN 108426454 A CN108426454 A CN 108426454A CN 201810289210 A CN201810289210 A CN 201810289210A CN 108426454 A CN108426454 A CN 108426454A
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- CN
- China
- Prior art keywords
- protective cover
- burner hearth
- electric resistance
- type electric
- resistance furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
-
- 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
- F27D11/02—Ohmic resistance heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention belongs to chamber type electric resistance furnace technical fields, disclose a kind of chamber type electric resistance furnace, in order to solve the problems, such as that processing efficiency existing for existing chamber type electric resistance furnace is low and causes heat exchanger effectiveness low since dust particles are suspended between quartz glass tube and Elema.The present invention includes babinet, the inside of babinet forms burner hearth, the surrounding of burner hearth is evenly arranged with several Elemas, the periphery of each Elema is provided with the protective cover of heat conduction, the diameter of protective cover upper end is less than the diameter of protective cover lower end, the ventilation item of the length direction setting along protective cover is offered on towards the protective cover of burner hearth central side, the upper end of each protective cover is communicated with collecting pipe, collecting pipe is communicated with negative-pressure air fan, burner hearth is provided centrally in horn-like guide shell, the outlet air end of negative-pressure air fan is interconnected with guide shell, filter net device is installed in the guide shell.
Description
Technical field
The invention belongs to chamber type electric resistance furnace technical fields, and in particular to a kind of chamber type electric resistance furnace.
Background technology
Chamber type electric resistance furnace is usually used in the high temperature heating use such as smelting, dissolving, analysis of metal, ceramics, generally by babinet and
The compositions such as heating element, Elema are the important heating element of chamber type electric resistance furnace, are placed in the both sides of chamber type electric resistance furnace burner hearth, still
There is also certain defects for Elema：(1) it is easy in the case of slight impact stress cataclasm；(2) at 1200 DEG C~1300 DEG C
In the case of it is long when and laser heating, Elema surface is readily volatilized to fall off and generates some dust particles, falls into heat treatment material
Surface, due to containing a large amount of carbon in dust particle, under the action of high temperature, and the metal material being heat-treated is burnt
Together, tiny is invisible to the naked eye knot, can not be purged, and causes material by staining, slight meeting reduces materials'use
It is service life, serious to cause to generate slight crack during following process, material scrap is caused, keeps rapidoprint quality impacted.
Submitted the patent of invention application No. is 201520775965.8 for problem the applicant, the patent by
The periphery setting quartz glass tube of Elema, for protecting Elema and preventing dust particles from entering in heat treatment material, but
Be when long-term after, due to the effect of quartz glass tube, greatly reduce the efficiency of heat radiation, so as to cause heat exchange imitate
Rate is low, and in the same circumstances, due to the effect of quartz glass tube, the efficiency of heating surface reduces 25-30%, causes energy consumption big,
And at the same time reducing processing efficiency.
After long-time use simultaneously, dust particles are adhered between quartz glass tube and Elema, further reduced heat
Exchange efficiency.
Invention content
The present invention is low and since dust particles are suspended in stone in order to solve processing efficiency existing for existing chamber type electric resistance furnace
The problem for causing heat exchanger effectiveness low between English glass tube and Elema, and a kind of chamber type electric resistance furnace is provided, it can improve and add
The uniformity and efficiency of heat, it is energy saving, while Elema can also be protected, and can prevent dust particles from entering Re Chu
It manages in material, ensures the quality of rapidoprint；Simultaneously dust particles are also prevented to pile up between quartz glass tube and Elema
And the problem for causing heat exchanger effectiveness low.
To solve technical problem, the technical solution adopted in the present invention is：
The inside of a kind of chamber type electric resistance furnace, including babinet, babinet forms burner hearth, and the surrounding of burner hearth is evenly arranged with several silicon
Carbon-point, which is characterized in that the periphery of each Elema is provided with the protective cover of heat conduction, and the diameter of protective cover upper end is less than protection
Cover lower end diameter, towards the protective cover of burner hearth central side on offer along protective cover length direction setting ventilation item,
The upper end of each protective cover is communicated with collecting pipe, and collecting pipe is communicated with negative-pressure air fan, and burner hearth is provided centrally in horn-like
Guide shell, outlet air end and the guide shell of negative-pressure air fan are interconnected, and filter net device, the strainer dress are equipped in the guide shell
It sets including the floating piston in guide shell, the center of floating piston is provided with openable valve, floating around valve
Piston offers gas port, is equipped with filter mesh layer in gas port, and the upper end of floating piston is connected with spring, under floating piston
Holder is installed in the guide shell of end, the thimble for being used to open valve is provided on holder, is arranged in the guide shell of the lower end of holder
There is filter layer.
The filter mesh layer includes the first filter mesh layer and the second filter mesh layer.
The valve includes the valve seat mounted on floating piston, offers gas channel on valve seat, gas channel is equipped with
Valve block, the center of valve seat are provided with the guide post that can be moved up and down on valve seat, and the upper end of guide post is connect with valve block, valve block
Disc spring is provided between valve seat, guide post offers the blind hole being mutually adapted with thimble.
Several ventholes are offered in the circumferential wall of guide shell.
The periphery of the collecting pipe and guide shell is coated with thermal insulation layer.
The protective cover include towards burner hearth center the first protective cover and backwards to burner hearth center the second protective cover, first
Protective cover and the second protective cover are joined together to form protective cover, the upper end of the first protective cover and the second protective cover through conduct heat cylinder with
Collecting pipe is connected to, and thermal insulation layer is provided between the first protective cover and heat transfer cylinder.
The periphery of first protective cover is provided with several heat conduction fins.
Compared with prior art, the invention has the advantages that：
Chamber type electric resistance furnace provided by the invention, by opening up ventilation item on protective cover, and the upper end of protective cover is through negative
Pressure fan is connected to gas cylinder, and strainer is provided in gas cylinder so that the present invention in use, Elema heat dissipation heat
On the one hand heat radiation is carried out by protective cover to heat heat treatment material, it on the other hand will by negative-pressure air fan and guide shell
Heat transfer is to the center of burner hearth so that heat can be around diffused at the center of burner hearth and recycle plus
Heat.Compared with the prior art, the present invention both can either protect Elema by protective cover, while silicon-carbon during when long-term
The dust particles that stick falls off are filtered under the action of negative pressure by strainer, prevent dust particles from entering in heat treatment material
It ensure that the quality of processing.Protective cover in the prior art simultaneously, the protective cover heat radiation due to separate burner hearth central side and heat
The space of exchange is smaller (spacing between Elema and protective cover and inboard wall of burner hearth is smaller), by by negative-pressure air fan by the part
Heat by burner hearth in the guiding of the form of hot wind inside so that the present invention not only increases the efficiency of heat exchange, simultaneously
Improve the uniformity of heat exchange.Test proves that under the same conditions, the present invention can improve efficiency of heating surface 30-35%,
The time of heat treatment is substantially reduced, it is energy saving.
By filter net device, floating piston is connected to through spring slide in guide shell the present invention, and passes through filter mesh layer simultaneously
It is filtered, to which dust particles be got rid of, when dust particles are deposited in filter mesh layer, the air pressure on the upside of floating piston
Become larger, to drive floating piston to decline, thimble opens valve and carries out pressure release, is carried out through filter layer by the air-flow that valve passes through
Filtering acts on reset, so that floating piston does not stop up and down after the completion of pressure release to ensure the cleaning of air-flow in spring
Vibration, to by the dust particles being adhered on filter mesh layer vibration fall, reach self-cleaning effect.Also prevent dust simultaneously
Particle is suspended between Elema and protective cover, improves the efficiency of heat exchange.
The present invention on the circumference of guide shell by opening up venthole so that thermal current can be ejected from all directions
It is heated, further increases the uniformity of heat exchange in burner hearth.
Protective cover of the present invention includes the design of the first protective cover and the second protective cover, and protective cover is by heat transfer cylinder and remittance
Flow tube is attached, and thermal insulation layer is provided between the first protective cover and collecting pipe so that the present invention can occasionally as possible imitate heat exchange
Heat on the second low protective cover of rate is swapped and is transmitted, and can improve the efficiency of heat exchange, and adequately use thermal energy.
The present invention by the structure design of fin, can as possible by heat in the first protective cover by the form of heat radiation into
Row interaction.
Description of the drawings
Fig. 1 is the appearance schematic diagram of the present invention；
Fig. 2 be the present invention Elema and the partial structural diagram of burner hearth (attached drawing only describes an Elema and stove
The connection type of the connection diagram of thorax, remaining Elema is identical)；
Fig. 3 is the structural schematic diagram of the filter net device of the present invention；
Fig. 4 is the structural schematic diagram of the protective cover of the present invention；
It is marked in figure：1, babinet, 2, burner hearth, 3, hermetyic window, 4, Elema, 5, protective cover, the 51, first protective cover, 52,
Two protective covers, 6, ventilation item, 7, heat transfer cylinder, 8, collecting pipe, 9, negative-pressure air fan, 10, guide shell, 11, thermal insulation layer, 12, strainer dress
It sets, 121, floating piston, the 122, first filter mesh layer, the 123, second filter mesh layer, 124, valve seat, 125, gas channel, 126, be oriented to
Column, 127, valve block, 128, disc spring, 129, thimble, 130, holder, 131, spring, 132, filter layer.
Specific implementation mode
With reference to embodiment, the invention will be further described, and described embodiment is only a present invention part
Embodiment is not whole embodiment.Based on the embodiments of the present invention, those skilled in the art are not making
Other embodiments used obtained under the premise of creative work, belong to protection scope of the present invention.
In conjunction with attached drawing, chamber type electric resistance furnace provided by the invention, including babinet 1, the inside of babinet 1 form burner hearth 2, burner hearth 2
Surrounding be evenly arranged with several Elemas 4, middle case 1 is additionally provided with hermatic door 3, for taking heat-treated wood to be processed
The periphery of material, each Elema 4 is provided with the protective cover 5 of heat conduction, and the diameter of 5 upper end of protective cover is less than 5 lower end of protective cover
Diameter, towards the protective cover 5 of 2 central side of burner hearth on offer along protective cover 5 length direction setting ventilation item 6, it is each
The upper end of protective cover 5 is communicated with collecting pipe 7, and collecting pipe 7 is communicated with negative-pressure air fan 9, and burner hearth 2 is provided centrally in horn-like
Guide shell 10, outlet air end and the guide shell 10 of negative-pressure air fan 9 are interconnected, and filter net device 12 is equipped in the guide shell 10,
The filter net device 12 includes the floating piston 121 being mounted in guide shell 10, and the center of floating piston 121 is provided with and can open
Valve, the floating piston 121 around valve offers gas port, is equipped with filter mesh layer in gas port, floating piston 121 it is upper
End is connected with spring 131, and holder 130 is equipped in the lower end guide shell 10 of floating piston 121, is provided with and is used on holder 130
The thimble 129 of valve is opened, filter layer 132 is provided in the guide shell 10 of the lower end of holder 130.Box electricity provided by the invention
Stove is hindered, by opening up ventilation item on protective cover, and the upper end of protective cover is connected to through negative-pressure air fan with gas cylinder, in gas cylinder
It is provided with strainer so that in use, on the one hand the heat of Elema heat dissipation carries out heat radiation to the present invention by protective cover
Heat treatment material is heated, the center of burner hearth is on the other hand transferred heat to by negative-pressure air fan and guide shell so that
Heat can around be diffused at the center of burner hearth and carry out recycling heating.Compared with the prior art, the present invention had been both
Elema can either be protected by protective cover, while the dust particles that Elema falls off during when long-term are in the work of negative pressure
It is filtered by strainer with lower, prevents dust particles from entering in heat treatment material the quality that ensure that processing.It is existing simultaneously
Protective cover in technology, due to space smaller (Elema and the guarantor of protective cover heat radiation and heat exchange far from burner hearth central side
Spacing between shield and inboard wall of burner hearth is smaller), by the way that negative-pressure air fan is guided the heat of the part by the form of hot wind
Inside middle burner hearth, so that the present invention not only increases the efficiency of heat exchange, while the uniformity of heat exchange is improved.By
Experiment proves that under the same conditions, the present invention can improve efficiency of heating surface 30-35%, substantially reduce the time of heat treatment, section
The about energy.
As a kind of preferred mode of the present invention, the filter mesh layer includes the first filter mesh layer 122 and the second filter mesh layer 123,
To realize multistage filtering, ensure the cleaning of air-flow.
The valve includes the valve seat 124 mounted on floating piston 121, and gas channel 125, gas are offered on valve seat 124
Circulation road 125 is equipped with valve block 127, and the center of valve seat 124 is provided with the guide post 126 that can be moved up and down on valve seat 124,
The upper end of guide post 126 is connect with valve block 127, and disc spring 128 is provided between valve block 127 and valve seat 124, and guide post 126 opens up
There is the blind hole being mutually adapted with thimble 129.
By filter net device, floating piston is connected to through spring slide in guide shell the present invention, and passes through filter mesh layer simultaneously
It is filtered, to which dust particles be got rid of, when dust particles are deposited in filter mesh layer, the air pressure on the upside of floating piston
Become larger, to drive floating piston to decline, thimble opens valve and carries out pressure release, is carried out through filter layer by the air-flow that valve passes through
Filtering acts on reset, so that floating piston does not stop up and down after the completion of pressure release to ensure the cleaning of air-flow in spring
Vibration, to by the dust particles being adhered on filter mesh layer vibration fall, reach self-cleaning effect.Also prevent dust simultaneously
Particle is suspended between Elema and protective cover, improves the efficiency of heat exchange.
Several ventholes are offered in the circumferential wall of guide shell 10.The present invention on the circumference of guide shell by opening up ventilation
Hole so that thermal current can be ejected from all directions and be heated, and further increase the uniformity of heat exchange in burner hearth.
The periphery of the collecting pipe 8 and guide shell 10 is coated with thermal insulation layer, and dissipating for heat is reduced to the greatest extent by thermal insulation layer
It loses, improves the utilization rate of the energy.
The protective cover 5 includes the first protective cover 51 towards 2 center of burner hearth and the second protective cover backwards to 2 center of burner hearth
52, the first protective cover 51 and the second protective cover 52 are joined together to form protective cover 5, the first protective cover 51 and the second protective cover 52
Upper end through conduct heat cylinder 7 be connected to collecting pipe 8, the first protective cover 51 and conduct heat cylinder 7 between be provided with thermal insulation layer 11.The present invention protects
Shield includes the design of the first protective cover and the second protective cover, and protective cover is attached by heat transfer cylinder with collecting pipe, the
It is provided with thermal insulation layer between one protective cover and collecting pipe so that the present invention can be occasionally as possible by the second low protective cover of heat exchanger effectiveness
On heat swap and transmit, the efficiency of heat exchange can be improved, and adequately use thermal energy.
The channel for being interconnected with protective cover is provided in heat transfer cylinder, convenient for passing through for air-flow.
The periphery of the first protective cover 51 of the present invention is provided with several heat conduction fins, and the present invention is set by the structure of fin
Meter, can as possible be interacted heat in the first protective cover by the form of heat radiation.
Claims (7)
1. the inside of a kind of chamber type electric resistance furnace, including babinet, babinet forms burner hearth, the surrounding of burner hearth is evenly arranged with several silicon-carbons
Stick, which is characterized in that the periphery of each Elema is provided with the protective cover of heat conduction, and the diameter of protective cover upper end is less than protective cover
The diameter of lower end, towards the protective cover of burner hearth central side on offer along protective cover length direction setting ventilation item, respectively
The upper end of a protective cover is communicated with collecting pipe, and collecting pipe is communicated with negative-pressure air fan, and being provided centrally with for burner hearth is led in horn-like
Flow cartridge, outlet air end and the guide shell of negative-pressure air fan are interconnected, and filter net device, the filter net device are equipped in the guide shell
Include the floating piston in guide shell, the center of floating piston is provided with openable valve, the floating around valve
Piston offers gas port, and filter mesh layer is equipped in gas port, and the upper end of floating piston is connected with spring, the lower end of floating piston
Holder is installed in guide shell, the thimble for being used to open valve is provided on holder, is provided in the guide shell of the lower end of holder
Filter layer.
2. chamber type electric resistance furnace according to claim 1, which is characterized in that the filter mesh layer includes the first filter mesh layer and second
Filter mesh layer.
3. chamber type electric resistance furnace according to claim 1, which is characterized in that the valve includes the valve mounted on floating piston
Seat, offers gas channel on valve seat, and gas channel is equipped with valve block, the center of valve seat be provided with can on valve seat on move down
The upper end of dynamic guide post, guide post is connect with valve block, disc spring is provided between valve block and valve seat, guide post offers and thimble
The blind hole being mutually adapted.
4. chamber type electric resistance furnace according to claim 1, which is characterized in that offer several ventilations in the circumferential wall of guide shell
Hole.
5. chamber type electric resistance furnace according to claim 1, which is characterized in that the periphery of the collecting pipe and guide shell coats
There is thermal insulation layer.
6. chamber type electric resistance furnace according to claim 1, which is characterized in that the protective cover includes towards burner hearth center
One protective cover and backwards second protective cover at burner hearth center, the first protective cover and the second protective cover are joined together to form protection
The upper end of cover, the first protective cover and the second protective cover is connected to through the cylinder that conducts heat with collecting pipe, is set between the first protective cover and heat transfer cylinder
It is equipped with thermal insulation layer.
7. chamber type electric resistance furnace according to claim 6, which is characterized in that the periphery of the first protective cover is provided with several heat conduction
Fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289210.5A CN108426454A (en) | 2018-03-30 | 2018-03-30 | A kind of chamber type electric resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289210.5A CN108426454A (en) | 2018-03-30 | 2018-03-30 | A kind of chamber type electric resistance furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108426454A true CN108426454A (en) | 2018-08-21 |
Family
ID=63160244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810289210.5A Pending CN108426454A (en) | 2018-03-30 | 2018-03-30 | A kind of chamber type electric resistance furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108426454A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0659799U (en) * | 1993-01-29 | 1994-08-19 | ロザイ工業株式会社 | Heat treatment furnace |
| CN2283655Y (en) * | 1996-01-26 | 1998-06-10 | 机械工业部无锡油泵油嘴研究所 | Car-type heated air circulation heat treating furnace |
| JP2001144426A (en) * | 1999-11-12 | 2001-05-25 | Nihon Dennetsu Keiki Co Ltd | Reflow-soldering device |
| KR100858448B1 (en) * | 2007-04-18 | 2008-09-12 | 삼우시스템 (주) | The filter installation structure of air conditioning for air diffuser |
| CN208012387U (en) * | 2018-03-30 | 2018-10-26 | 内江至诚铂业科技有限公司 | A kind of chamber type electric resistance furnace |
-
2018
- 2018-03-30 CN CN201810289210.5A patent/CN108426454A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0659799U (en) * | 1993-01-29 | 1994-08-19 | ロザイ工業株式会社 | Heat treatment furnace |
| CN2283655Y (en) * | 1996-01-26 | 1998-06-10 | 机械工业部无锡油泵油嘴研究所 | Car-type heated air circulation heat treating furnace |
| JP2001144426A (en) * | 1999-11-12 | 2001-05-25 | Nihon Dennetsu Keiki Co Ltd | Reflow-soldering device |
| KR100858448B1 (en) * | 2007-04-18 | 2008-09-12 | 삼우시스템 (주) | The filter installation structure of air conditioning for air diffuser |
| CN208012387U (en) * | 2018-03-30 | 2018-10-26 | 内江至诚铂业科技有限公司 | A kind of chamber type electric resistance furnace |
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