CN203374801U - Sealing device of hearth of high-temperature atmosphere furnace - Google Patents
Sealing device of hearth of high-temperature atmosphere furnace Download PDFInfo
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- CN203374801U CN203374801U CN201320480089.7U CN201320480089U CN203374801U CN 203374801 U CN203374801 U CN 203374801U CN 201320480089 U CN201320480089 U CN 201320480089U CN 203374801 U CN203374801 U CN 203374801U
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- China
- Prior art keywords
- eyelet
- gland
- alundum tube
- burner hearth
- temperature atmosphere
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Abstract
The utility model discloses a sealing device of a hearth of a high-temperature atmosphere furnace. The sealing device comprises the hearth, wherein the hearth is a cylindrical alundum tube, a metal ring is arranged at a position close to the opening of the alundum tube in a sleeved mode and is connected to the alundum tube in a fastened mode through a fastening piece, a sealing cap covers the opening of the alundum tube, a gland is arranged outside the sealing cap, and the gland is pressed on the sealing cap and is fixed to the metal ring through a connecting piece. In the prior art, an alundum tube is adopted in a high-temperature atmosphere furnace hearth, two openings are mainly plugged by rubber plugs to be sealed, matching between the rubber plugs and the alundum tube is not tight enough in most cases, loosening can also occur in the using process, and good sealing performance of the opening of the alundum tube cannot be guaranteed. The sealing device guarantees right matching between the sealing cap and the opening of the alundum tube, and guarantees sealing performance of the opening of the alundum tube.
Description
Technical field
The utility model relates to the seal arrangement of high-temperature atmosphere furnace, particularly a kind of seal arrangement of high-temperature atmosphere furnace burner hearth.
Background technique
High-temperature atmosphere furnace is high for the sealing requirements in burner hearth, if seal badly, air enters in burner hearth, causes the anodizing in burner hearth, in the time of can't guaranteeing to fire element in burner hearth temperature evenly.The burner hearth of existing high-temperature atmosphere furnace adopts alundum tube, two mouths of pipe of alundum tube are to need sealing, in the prior art, sealing for two mouths of pipe is mainly to adopt rubber stopper that two mouths of pipe are clogged, cooperation between the mouth of pipe of rubber stopper and alundum tube is defective tightness often, in use also there will be looseningly, can't guarantee that the alundum tube mouth of pipe has sealing preferably.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of seal arrangement of high-temperature atmosphere furnace burner hearth, guarantees closely cooperating of sealing cover and the alundum tube mouth of pipe, guarantees the sealing of the alundum tube mouth of pipe.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of seal arrangement of high-temperature atmosphere furnace burner hearth, comprise burner hearth, described burner hearth is cylindrical alundum tube, position cover near the alundum tube mouth of pipe has an eyelet and is fastenedly connected on described alundum tube by fastening piece, the described alundum tube mouth of pipe is stamped a sealing cover, and described sealing cover is provided with a gland outward, and described gland is pressed on described sealing cover and by link and is fixed on described eyelet.Gland is pushed down described sealing cover, because gland is fixedly connected on described eyelet, when gland is pressed on sealing cover, pass through adjusting connector, constantly Squeezing sealing lid reaches closely cooperating of sealing cover and the alundum tube mouth of pipe, simultaneously because gland is fixed on eyelet, in use, sealing cover not there will be loosening under the restriction of gland, has guaranteed the sealing of the alundum tube mouth of pipe.
As preferably, described sealing cover is the silicone rubber lid.Silicone rubber is stamped elasticity, and good airproof performance has guaranteed the seal of alundum tube burner hearth when covering the alundum tube mouth of pipe.
As preferably, described fastening piece is screw rod, and described eyelet is provided with the through hole towards the center of circle from periphery wall, tapping in through hole, described screw rod is against on described alundum tube through described through hole, described screw rod tighten the center of circle that direction of advance is pointed to eyelet.By screw rod, eyelet is squeezed on described alundum tube, play fastening effect, in through hole, tapping and screw rod coordinate the elasticity that facilitates adjusting screw rod and then regulate eyelet and alundum tube, screw rod only when tightening direction points to the situation in the center of circle of eyelet fastening effect best, eyelet and the alundum tube center of circle overlap as far as possible.
As preferably, described screw rod is even number, and has four at least, and two one group, the line of screw rod on the same group and the center of circle of eyelet are on same straight line.Described screw rod is symmetrical about the center of circle, can offset screw rod to alundum tube active force radially, keep alundum tube to be subject to equilibrium of forces, make alundum tube be difficult for explosion when heating, and it is more firm that eyelet is installed.
As preferably, described screw rod has 8 periphery walls along described eyelet evenly to arrange.8 screw rods have increased the force bearing point of eyelet, guaranteed the stable and firm of installation, when described gland is fixed in eyelet, be difficult for being moved in the situation that increase the stubborn power eyelet of link, so guarantee the pressure of gland to the alundum tube mouth of pipe, made burner hearth there is good sealing.
As preferably, described eyelet and gland are also propped up by a strut respectively, and described strut comprises carriage and strut, and the carriage of described strut is held respectively described eyelet and gland, and described strut bottom is connected to the furnace bottom of high-temperature atmosphere furnace.Due to eyelet and the gland quality heavier, and when gland covers alundum tube, the stubborn power of link is large, cause strut stressed large at eyelet and gland place, cause the unbalance stress of alundum tube, usually just cause and break after the alundum tube burner hearth is fired several times, by the support of strut, make the stressed balance as much as possible of alundum tube, reduced the possibility of alundum tube breakage.
As preferably, the carriage of described two struts is circular-arc.Carriage is circular-arc, has increased the area of contact with eyelet and gland, has reduced the pressure of gland and eyelet and carriage surface of contact, makes the stressed more even of eyelet and gland.
As preferably, described link is bolt and nut, be equipped with attachment hole on described eyelet and described gland, pass through attachment hole, be fixedly connected with described eyelet and gland with nut by bolt, the attachment hole that is positioned at described eyelet and gland respectively has three and the central distribution around eyelet or gland triangular in shape, and described bolt and nut also have three pairs.Described bolt and nut are triangular in shape and around the central distribution of eyelet or gland, make gland pressure distributing equilibrium.The degree adjusting bolt that can compress according to alundum tube mouth of pipe gland, the degree of tightening of nut, make the gland Squeezing sealing lid reach closely cooperating of sealing cover and the alundum tube mouth of pipe, guarantee the sealing that the high-temperature atmosphere furnace burner hearth is good, and bolt and nut be connected firmly, be difficult for occurring loosening.
After adopting technique scheme, the utlity model has following advantage:
Because gland is fixedly connected on eyelet by link, when gland is pressed on sealing cover, pass through adjusting connector, constantly Squeezing sealing lid reaches closely cooperating of sealing cover and the alundum tube mouth of pipe, simultaneously because gland is fixed on eyelet, in use, sealing cover not there will be loosening under the restriction of gland, has guaranteed the sealing of the alundum tube mouth of pipe.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1 is the utility model structural representation;
The A-A sectional view that Fig. 2 is Fig. 1 eyelet;
Fig. 3 is the sealing cover structure schematic diagram;
The structural representation that Fig. 4 is strut.
Embodiment
As Figure 1-4, a kind of seal arrangement of high-temperature atmosphere furnace burner hearth, comprise burner hearth 1, described burner hearth 1 is cylindrical alundum tube, position cover near the alundum tube mouth of pipe has an eyelet 2 and is fastenedly connected on described alundum tube 1 by fastening piece 5, the described alundum tube mouth of pipe is stamped a sealing cover 3, and described sealing cover 3 is outer is provided with a gland 4, and described gland 4 is pressed on described sealing cover 3 and by link 7 and is fixed on described eyelet 2.Gland 4 is pushed down described sealing cover 3, because gland 4 is fixedly connected on described eyelet 2, when gland 4 is pressed on sealing cover 3, by adjusting connector 7, constantly Squeezing sealing lid 3, reach closely cooperating of sealing cover 3 and the alundum tube mouth of pipe, simultaneously because gland 4 is fixed on eyelet 2, in use, sealing cover 3 not there will be loosening under the restriction of gland 4, has guaranteed the sealing of the alundum tube mouth of pipe.Referring to Fig. 3, described sealing cover 3 is the silicone rubber lid.Silicone rubber lid good springiness, sealing is good, has guaranteed the good sealing of alundum tube 1 burner hearth.Due to eyelet 2 and gland 4 quality heavier, and when gland 4 covers alundum tube 1, the stubborn power of link is large, cause strut stressed large at eyelet 2 and gland 4 places, cause the unbalance stress of alundum tube 1, usually just cause and break after alundum tube 1 burner hearth is fired several times, therefore described eyelet 2 and gland 4 are also propped up by a strut respectively, referring to Fig. 4, described strut comprises carriage 61 and strut 62, the carriage 61 of described strut is held respectively described eyelet 2 and gland 4, and described strut 62 bottoms are connected to the furnace bottom of high-temperature atmosphere furnace.By the support of strut, make the stressed balance as much as possible of alundum tube 1, reduced the possibility of alundum tube 1 breakage.The carriage 61 of described two struts is circular-arc, has increased the area of contact with eyelet 2 and gland 4, has reduced the pressure of gland 4 and eyelet 2 and carriage 61 surface of contact, makes the stressed more even of eyelet 2 and gland 4.
In this preferred embodiment, described link 7 is bolt and nut, be equipped with attachment hole on described eyelet 2 and described gland 4, pass through attachment hole, be fixedly connected with described eyelet and 2 glands 4 with nut by bolt, the attachment hole that is positioned at described eyelet 2 and gland 4 respectively has three and the central distribution around eyelet 2 or gland 4 triangular in shape, and described bolt and nut also have three pairs.Bolt and nut are triangular in shape and around the central distribution of eyelet or gland, make gland 4 pressure distributing equilibriums.The degree adjusting bolt that can compress according to alundum tube mouth of pipe gland, the degree of tightening of nut, make gland 4 Squeezing sealing lids 3 reach closely cooperating of sealing cover 3 and the alundum tube mouth of pipe, guarantee the sealing that the high-temperature atmosphere furnace burner hearth is good, and bolt and nut be connected firmly, be difficult for occurring loosening.
As preferably, described fastening piece 5 is screw rod, for guaranteeing stability and the soundness of eyelet 2, referring to Fig. 2, described eyelet 2 is provided with the through hole towards the center of circle from periphery wall, tapping in through hole, described screw rod is against on described alundum tube 1 through described through hole, the center of circle of tightening direction of advance sensing eyelet 2 of described screw rod.By screw rod, eyelet 2 is squeezed on described alundum tube 1, play fastening effect, in through hole, tapping and screw rod coordinate the elasticity that facilitates adjusting screw rod and then regulate eyelet 2 and alundum tube 1, screw rod only when tightening direction points to the situation in eyelet 2 centers of circle fastening effect best, eyelet 2 and alundum tube 1 center of circle overlap as far as possible.Described screw rod is even number, and has four at least, and two one group, the center of circle of the line of screw rod on the same group and eyelet 2 is on same straight line.Described screw rod on the same group and the center of circle on same straight line, can offset screw rod to alundum tube 1 active force radially, keep alundum tube 1 to be subject to equilibrium of forces, make alundum tube 1 be difficult for explosion when heating, and it is more firm that eyelet 2 is installed.In this preferred embodiment, described screw rod adopts 8 and evenly arrange along the periphery wall of described eyelet 2.8 screw rods have increased the force bearing point of eyelet 2, guaranteed the stable and firm of installation, when described gland 4 is fixed in eyelet 2, be difficult for being moved in the situation that increase the stubborn power eyelet 2 of bolt, so guarantee the pressure of 4 pairs of alundum tube mouths of pipe of gland, made burner hearth there is good sealing.
Except above preferred embodiment, the utility model also has other mode of execution, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (8)
1. the seal arrangement of a high-temperature atmosphere furnace burner hearth, comprise burner hearth (1), described burner hearth (1) is cylindrical alundum tube, it is characterized in that: the position cover near the alundum tube mouth of pipe has an eyelet (2) and is fastenedly connected on described alundum tube (1) by fastening piece (5), the described alundum tube mouth of pipe is stamped a sealing cover (3), the outer gland (4) that is provided with of described sealing cover (3), described gland (4) is pressed on described sealing cover (3) above and is fixed on described eyelet (2) by link (7).
2. the seal arrangement of high-temperature atmosphere furnace burner hearth according to claim 1 is characterized in that: described sealing cover (3) is the silicone rubber lid.
3. the seal arrangement of high-temperature atmosphere furnace burner hearth according to claim 1, it is characterized in that: described fastening piece (5) is screw rod, described eyelet (2) is provided with the through hole towards the center of circle from periphery wall, tapping in through hole, it is upper that described screw rod is against described alundum tube (1) through described through hole, the center of circle of tightening direction of advance sensing eyelet (2) of described screw rod.
4. the seal arrangement of high-temperature atmosphere furnace burner hearth according to claim 3, it is characterized in that: described screw rod is even number, and has four at least, two one group, the center of circle of the line of two screw rods on the same group and eyelet (2) is on same straight line.
5. the seal arrangement of high-temperature atmosphere furnace burner hearth according to claim 4, it is characterized in that: described screw rod has 8 periphery walls along described eyelet (2) evenly to arrange.
6. the seal arrangement of high-temperature atmosphere furnace burner hearth according to claim 1, it is characterized in that: described eyelet (2) and gland (4) are also propped up by a strut respectively, described strut comprises carriage (61) and strut (62), the carriage of described strut is held respectively described eyelet (2) and gland (4), and described strut bottom is connected to the furnace bottom of high-temperature atmosphere furnace.
7. the seal arrangement of high-temperature atmosphere furnace burner hearth according to claim 6 is characterized in that: the carriage of described two struts (61) is for circular-arc.
8. the seal arrangement of high-temperature atmosphere furnace burner hearth according to claim 1, it is characterized in that: described link (7) is bolt and nut, be equipped with attachment hole on described eyelet (2) and described gland (4), pass through attachment hole, be fixedly connected with described eyelet and (2) gland (4) with nut by bolt, the attachment hole that is positioned at described eyelet (2) and gland (4) respectively has three and the central distribution around eyelet (2) or gland (4) triangular in shape, and described bolt and nut also have three pairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480089.7U CN203374801U (en) | 2013-08-07 | 2013-08-07 | Sealing device of hearth of high-temperature atmosphere furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480089.7U CN203374801U (en) | 2013-08-07 | 2013-08-07 | Sealing device of hearth of high-temperature atmosphere furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374801U true CN203374801U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320480089.7U Expired - Fee Related CN203374801U (en) | 2013-08-07 | 2013-08-07 | Sealing device of hearth of high-temperature atmosphere furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453145A (en) * | 2013-08-07 | 2013-12-18 | 长兴三重窑炉科技有限公司 | Hearth sealing device of high-temperature atmosphere furnace |
| CN111347365A (en) * | 2020-04-13 | 2020-06-30 | 合肥科晶材料技术有限公司 | Sealing flange system for effectively avoiding corundum tube fracture |
-
2013
- 2013-08-07 CN CN201320480089.7U patent/CN203374801U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453145A (en) * | 2013-08-07 | 2013-12-18 | 长兴三重窑炉科技有限公司 | Hearth sealing device of high-temperature atmosphere furnace |
| CN103453145B (en) * | 2013-08-07 | 2015-08-19 | 长兴三重窑炉科技有限公司 | A kind of seal arrangement of high-temperature atmosphere furnace burner hearth |
| CN111347365A (en) * | 2020-04-13 | 2020-06-30 | 合肥科晶材料技术有限公司 | Sealing flange system for effectively avoiding corundum tube fracture |
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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: 20140101 Termination date: 20140807 |
|
| EXPY | Termination of patent right or utility model |