CN202329215U - Electricity leading system structure of high temperature resistance furnace - Google Patents
Electricity leading system structure of high temperature resistance furnace Download PDFInfo
- Publication number
- CN202329215U CN202329215U CN2011205413958U CN201120541395U CN202329215U CN 202329215 U CN202329215 U CN 202329215U CN 2011205413958 U CN2011205413958 U CN 2011205413958U CN 201120541395 U CN201120541395 U CN 201120541395U CN 202329215 U CN202329215 U CN 202329215U
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- high temperature
- system structure
- temperature resistance
- draw
- resistance furnace
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Abstract
The utility model discloses an electricity leading system structure of a high temperature resistance furnace, which comprises an electrode tip, an electrode base and an electricity leading body. A taper hole is arranged on the lower portion of the electrode tip, the upper end of the electrode base is located in the taper hole and is in a matched connection with the taper hole through a conical surface, a screwed hole is mounted on the lower portion of the electrode base, the upper end of the electricity leading body is located in the screwed hole and is threadedly connected with the electrode base, the distance L1 between the upper end of the electricity leading body and the bottom of the screwed hole ranges from 30 mm to 50 mm, the distance L2 between the upper end of the electrode base and the bottom of the taper hole ranges from 160 mm to 200 mm, and the taper hole is filled with carbon felts. The electricity leading system structure of the high temperature resistance furnace has the advantages that the structure is simple, the design is reasonable, the usage is convenient, simultaneously element exchanging is convenient, the phenomenon of arc discharge is few, heat conduction quantity is small, and usage is safe and reliable.
Description
Technical field
The utility model belongs to the carbon/carbon composite preparing technical field, and what especially relate to a kind of high temperature resistance furnace draws the electric system structure.
Background technology
Carbon/carbon composite is the unique material that can under hot environment, work, because of its excellent comprehensive performance is widely used in Aeronautics and Astronautics and other industrial circle as novel high-tech material.Flourish along with solar level crystalline silicon industry in recent years, carbon/carbon composite becomes thermal field material indispensable in the crystalline silicon production equipment again, and its demand sharply increases, and product also develops to large scale.
High temperature furnace (comprising resistance furnace and induction furnace) is one of indispensable equipment of preparation carbon/carbon composite, and along with the increase of carbon/carbon composite size, the high temperature furnace equipment size also constantly increases.Carbon/carbon composite high-temperature process temperature is between 1400 ℃-2400 ℃; Its mode of heating is generally the graphite eddy-current heating; Requiring heater and induction coil all is closed hoop, and in order to prevent that heating furnace shell produces potential safety hazard, heater and induction coil all will have bigger distance with the heating furnace shell; Make like this to be applicable to that the high temperature furnace that the large scale carbon/carbon composite is produced takes up an area of greatly, and the whole ring-type graphite heater of corresponding requirements size increases.But producer is difficult to provide the whole graphite material of large scale as induction high temperature furnace heater both at home and abroad at present, has limited high temperature furnace furnace chamber size, is difficult to satisfy the production of large scale carbon/carbon composite.
In order to satisfy the production of large scale carbon/carbon composite goods, more and more enterprises takes up the development work of large high-temperature resistance furnace.At present common serviceability temperature surpasses 1600 ℃ large high-temperature resistance furnace, and its heating system is by drawing electric system and heating element heater is formed, and it is most important to the use of entire equipment heating system to draw the electric system structure.
Present some problems below the high temperature resistance furnace: (1) graphite heat conducting coefficient is big, draws electric body when furnace temperature is higher and graphite electrode junction temperature is higher, causes drawing electric body scaling loss easily; (2) it is shorter to draw the distance of electric body insulation sleeve and graphite electrode, causes insulation sleeve place temperature higher, makes insulation sleeve destroy its insulation effect because of charing; The sealing of (3) drawing electric body adopts nut to compress axial seal mostly, or the mode that combines with axial seal of end face seal.Because pressurized is inhomogeneous, the nut compression axis leaks air phenomenon easily to sealing means; Though the mode sealing effectiveness that end face seal combines with axial seal is better, fitting operation is loaded down with trivial details, occurs easily that end-face seal ring does not install and the gas leak phenomenon that causes.
The utility model content
The purpose of the utility model is to overcome above-mentioned deficiency of the prior art, and what a kind of high temperature resistance furnace was provided draws the electric system structure, and it is simple in structure, reasonable in design and easy to use; It is convenient to change element simultaneously; Be not prone to and beat the arc phenomenon, heat conduction amount is little, and is safe and reliable.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: a kind of high temperature resistance furnace draw the electric system structure; It is characterized in that: comprise electrode tip, electrodes base and draw electric body, the bottom of said electrode tip is provided with bellmouth, and the upper end of said electrodes base is positioned at said bellmouth and is connected through cone match with bellmouth; The bottom of said electrodes base is provided with screwed hole, and said upper end of drawing electric body is positioned at said screwed hole and is threaded with electrodes base; Distance L 1 between the bottom of said upper end of drawing electric body and said screwed hole is 30mm-50mm, and the distance L 2 between the upper end of said electrodes base and the bottom of said bellmouth is 160mm-200mm, is filled with the charcoal felt in the said bellmouth.
Above-mentioned a kind of high temperature resistance furnace draw the electric system structure, it is characterized in that: said electrode tip is with the charcoal felt outward, is provided with graphite bush and high temperature resistant filler between said charcoal felt and the electrode tip, said graphite bush is arranged on outside the high temperature resistant filler.
Above-mentioned a kind of high temperature resistance furnace draw the electric system structure, it is characterized in that: the thickness of said high temperature resistant filler is 25mm.
Above-mentioned a kind of high temperature resistance furnace draw the electric system structure, it is characterized in that: said high temperature resistant filler is Al
2O
3Powder or MgO powder.
Above-mentioned a kind of high temperature resistance furnace draw the electric system structure, it is characterized in that: saidly drawing electric body and be provided with and top bar and get out of a predicament or an embarrassing situation, fits in the lower surface of said upper surface of topping bar and electrodes base, and said lower surface of getting out of a predicament or an embarrassing situation is provided with insulation sleeve; The said external collet that is provided with of electricity that draws; Said collet lower end is provided with to be enclosed within draws the external pressing plate of electricity; The said external pressure ring that also is with of electricity that draws is provided with sealing ring and packing ring between said pressure ring and the insulation sleeve, said pressing plate compresses sealing ring and packing ring through bolt.
Above-mentioned a kind of high temperature resistance furnace draw the electric system structure, it is characterized in that: the distance L 3 between the said upper surface of topping bar and the lower surface of getting out of a predicament or an embarrassing situation is 100mm-120mm.
Above-mentioned a kind of high temperature resistance furnace draw the electric system structure, it is characterized in that: said collet is the alumina silicate fibre collet.
Above-mentioned a kind of high temperature resistance furnace draw the electric system structure, it is characterized in that: said electrodes base is with insulator outward, said insulator is with the alumina silicate felt outward, said alumina silicate felt is between charcoal felt and body of heater.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design and easy to use.
2, electrodes base has with drawing electric body and contacts with heating element heater, is not prone to beat arc, the advantage that heat conduction amount is little; Draw electric body and be positioned at the body of heater outside, environment temperature is low, and environment for use is safer.
3, insulation sleeve and electrodes base and add collet in the centre from a distance, and the heat radiation that can prevent electrode tip is avoided the insulation sleeve scaling loss occurring and the problem that causes insulating and reduce to insulation sleeve.
4, furnace interior divides employing graphite bush and high temperature resistant inserts and isolation charcoal felt, can play the insulation effect of heat insulation, avoids furnace high-temperature to be radiated the bottom heat-insulation layer.
5, drawing electric body sealing ring adopts pressing plate to compress; Can guarantee that the sealing ring pressurized is even; Be difficult for the phenomenon that leaks air; Originally drawing that the electric system structure can be used for graphite (carbon/carbon composite) is the large scale high temperature resistance furnace heating system of heating element heater, and be used for heating-up temperature surpass 1600 ℃ draw the electric system structure.
Through accompanying drawing and embodiment, the utility model is done further detailed description below.
Description of drawings
Fig. 1 is installed in the structural representation on the body of heater for the utility model.
Description of reference numerals:
The 1-electrode tip; The high temperature resistant filler of 2-; The 3-graphite bush;
4-charcoal felt; The 5-electrodes base; 6-alumina silicate felt;
The 7-insulator; The 8-collet; The 9-insulation sleeve;
The 10-sealing ring; The 11-pressing plate; 12-draws electric body;
The 13-pressure ring; The 14-bolt; The 15-packing ring;
The 16-body of heater; 17-charcoal felt.
The specific embodiment
As shown in Figure 1; The utility model comprises electrode tip 1, electrodes base 5 and draws electric body 12; The bottom of said electrode tip 1 is provided with bellmouth; The upper end of said electrodes base 5 is positioned at said bellmouth and is connected through cone match with bellmouth, and the bottom of said electrodes base 5 is provided with screwed hole, and said upper end of drawing electric body 12 is positioned at said screwed hole and is threaded with electrodes base 5; Distance L 1 between the bottom of said upper end of drawing electric body 12 and said screwed hole is 30mm-50mm, and the distance L 2 between the upper end of said electrodes base 5 and the bottom of said bellmouth is 160mm-200mm, is filled with charcoal felt 17 in the said bellmouth.During actual fabrication, bellmouth can be processed growth 180mm, and the charcoal felt 17 of filling in it can reduce the heat of graphite conduction.
As shown in Figure 1, be with charcoal felt 4 outside the said electrode tip 1, be provided with graphite bush 3 and high temperature resistant filler 2 between said charcoal felt 4 and the electrode tip 1, said graphite bush 3 is arranged on outside the high temperature resistant filler 2.In the present embodiment, the thickness of said high temperature resistant filler 2 is 25mm; Said high temperature resistant filler 2 is Al
2O
3Powder or MgO powder.Owing to be provided with graphite bush 3 and high temperature resistant filler 2 between charcoal felt 4 and the electrode tip 1, and high temperature resistant filler 2 is high temperature resistant nonconducting again Al
2O
3Therefore powder or MgO powder can be used for serviceability temperature and surpass in 1600 ℃ the resistance furnace, both can insulate, and can prevent that also furnace heat is radiated bottom alumina silicate felt 6, causes alumina silicate felt 6 scaling loss.
As shown in Figure 1, saidly to draw electric body 12 and be provided with and top bar and get out of a predicament or an embarrassing situation, fit in the lower surface of said upper surface of topping bar and electrodes base 5, and said lower surface of getting out of a predicament or an embarrassing situation is provided with insulation sleeve 9; Saidly draw electric body 12 and be outside equipped with collet 8; Said collet 8 lower ends are provided with and are enclosed within the pressing plate 11 that draws outside the electric body 12; Said drawing outside the electric body 12 also is with pressure rings 13; Be provided with sealing ring 10 and packing ring 15 between said pressure ring 13 and the insulation sleeve 9, said pressing plate 11 compresses sealing ring 10 and packing ring 15 through bolt 14.In the present embodiment, the distance L 3 between the said upper surface of topping bar and the lower surface of getting out of a predicament or an embarrassing situation is 100mm-120mm; Said collet 8 is the alumina silicate fibre collet.Wherein, fitting in the lower surface of upper surface of topping bar and electrodes base 5, increases to electric area, and the lower surface of getting out of a predicament or an embarrassing situation is dropped on the gorgeous extremely cover 9, is respectively applied for insulation, the location of drawing electric body 12; Through two steps from a distance, can avoid causing insulation sleeve 9 scaling loss, destroy the insulation effect of insulation sleeve 9 because of graphite base 5 temperature are too high with graphite base 5 and insulation sleeve 9; Draw electric body 12 and add a collet 8 made from alumina silicate fibre, can prevent effectively that the heat of graphite base 5 is transmitted to insulation sleeve 9 and sealing ring 10 places, can effectively protect these parts with insulation sleeve 9.In a word, draw two step surfaces up and down that are processed on the electric body 12, can under the situation that does not influence the cooling effect that draws electric body 12, obtain the better effect of using.In addition, adopt 4 bolt 14 clamping platens, pressure ring 13 is compressed sealing ring 10, this method that compresses sealing ring 10 can guarantee that sealing ring 10 pressurizeds are even, is difficult for the phenomenon that leaks air, and makes operation simpler.
As shown in Figure 1, the said electrodes base 5 outer insulators 7 that are with are with alumina silicate felt 6 outside the said insulator 7, and said alumina silicate felt 6 is between charcoal felt 4 and body of heater 16.
In the utility model; Electrode tip 1 is used to connect heater element, and its lower end is connected with graphite base 5 through the conical surface, thereby has guaranteed that there is bigger contact area the junction; And there is not directional problems in conical surface connected mode, can satisfy heating element heater and the heating system that direction requires is installed uses.Graphite base 5 through screw thread with draw electric body 12 and be connected, and the threaded portion length ratio that guarantees graphite base 5 to draw electric body 12 threaded portions long, graphite base 5 is contacted with drawing electric body 12 end faces fully, have connection reliably, the characteristics that contact area is big; Simultaneously owing to the distance L between the bottom of upper end of drawing electric body 12 and screwed hole 1 is 30mm-50mm; Therefore can avoid graphite base 5 electric discharge phenomena to occur with drawing electric body 12 upper surface hypotelorisms; Simultaneously can also reduce graphite electrode and be transmitted to the heat that draws electric body 12; Avoid the too high problem that causes drawing electric body 2 scaling loss of Yin Wendu, be fit to serviceability temperature surpass 1600 ℃ be the resistance furnace of heating element heater with graphite (carbon/carbon composite).In addition, graphite base 5 with draw electric body 12 through being threaded, be connected through the conical surface with electrode tip 1, in using, occur damagedly, can only change damaged part wherein, can practice thrift manufacturing cost to a certain extent.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of the utility model technical scheme.
Claims (8)
1. a high temperature resistance furnace draws the electric system structure; It is characterized in that: comprise electrode tip (1), electrodes base (5) and draw electric body (12); The bottom of said electrode tip (1) is provided with bellmouth; The upper end of said electrodes base (5) is positioned at said bellmouth and is connected through cone match with bellmouth, and the bottom of said electrodes base (5) is provided with screwed hole, and said upper end of drawing electric body (12) is positioned at said screwed hole and is threaded with electrodes base (5); Distance L 1 between the bottom of said upper end of drawing electric body (12) and said screwed hole is 30mm-50mm, and the distance L 2 between the upper end of said electrodes base (5) and the bottom of said bellmouth is 160mm-200mm, is filled with charcoal felt (17) in the said bellmouth.
2. draw the electric system structure according to the described a kind of high temperature resistance furnace of claim 1; It is characterized in that: the outer charcoal felt (4) that is with of said electrode tip (1); Be provided with graphite bush (3) and high temperature resistant filler (2) between said charcoal felt (4) and the electrode tip (1), said graphite bush (3) is arranged on outside the high temperature resistant filler (2).
According to the described a kind of high temperature resistance furnace of claim 2 draw the electric system structure, it is characterized in that: the thickness of said high temperature resistant filler (2) is 25mm.
According to the described a kind of high temperature resistance furnace of claim 2 draw the electric system structure, it is characterized in that: said high temperature resistant filler (2) is Al
2O
3Powder or MgO powder.
5. draw the electric system structure according to claim 1 or 2 described a kind of high temperature resistance furnaces; It is characterized in that: the said electric body (12) that draws is provided with and tops bar and get out of a predicament or an embarrassing situation; Fit in the lower surface of said upper surface of topping bar and electrodes base (5), said lower surface of getting out of a predicament or an embarrassing situation is provided with insulation sleeve (9); The said electric body (12) that draws is outside equipped with collet (8); Said collet (8) lower end is provided with to be enclosed within draws the outer pressing plate (11) of electric body (12); The said outer pressure ring (13) that also is with of electric body (12) that draws; Be provided with sealing ring (10) and packing ring (15) between said pressure ring (13) and the insulation sleeve (9), said pressing plate (11) compresses sealing ring (10) and packing ring (15) through bolt (14).
According to the described a kind of high temperature resistance furnace of claim 5 draw the electric system structure, it is characterized in that: the distance L 3 between the said upper surface of topping bar and the lower surface of getting out of a predicament or an embarrassing situation is 100mm-120mm.
According to the described a kind of high temperature resistance furnace of claim 5 draw the electric system structure, it is characterized in that: said collet (8) is the alumina silicate fibre collet.
8. draw the electric system structure according to claim 1 or 2 described a kind of high temperature resistance furnaces; It is characterized in that: the outer insulator (7) that is with of said electrodes base (5); Said insulator (7) is outer to be with alumina silicate felt (6), and said alumina silicate felt (6) is positioned between charcoal felt (4) and the body of heater (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205413958U CN202329215U (en) | 2011-12-19 | 2011-12-19 | Electricity leading system structure of high temperature resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205413958U CN202329215U (en) | 2011-12-19 | 2011-12-19 | Electricity leading system structure of high temperature resistance furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202329215U true CN202329215U (en) | 2012-07-11 |
Family
ID=46441196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205413958U Expired - Lifetime CN202329215U (en) | 2011-12-19 | 2011-12-19 | Electricity leading system structure of high temperature resistance furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202329215U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002605A (en) * | 2012-12-05 | 2013-03-27 | 湖南省鑫源新材料股份有限公司 | Connecting assembly of electrode and heater of high-temperature resistance furnace |
| CN105466224A (en) * | 2015-12-14 | 2016-04-06 | 湖南顶立科技有限公司 | Heating furnace |
-
2011
- 2011-12-19 CN CN2011205413958U patent/CN202329215U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002605A (en) * | 2012-12-05 | 2013-03-27 | 湖南省鑫源新材料股份有限公司 | Connecting assembly of electrode and heater of high-temperature resistance furnace |
| CN103002605B (en) * | 2012-12-05 | 2015-01-28 | 湖南省鑫源新材料股份有限公司 | Connecting assembly of electrode and heater of high-temperature resistance furnace |
| CN105466224A (en) * | 2015-12-14 | 2016-04-06 | 湖南顶立科技有限公司 | Heating furnace |
| CN105466224B (en) * | 2015-12-14 | 2018-01-26 | 湖南顶立科技有限公司 | A kind of heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |