CN109612270A - Annular furnace heating radiation tube seal structure - Google Patents
Annular furnace heating radiation tube seal structure Download PDFInfo
- Publication number
- CN109612270A CN109612270A CN201811506262.XA CN201811506262A CN109612270A CN 109612270 A CN109612270 A CN 109612270A CN 201811506262 A CN201811506262 A CN 201811506262A CN 109612270 A CN109612270 A CN 109612270A
- Authority
- CN
- China
- Prior art keywords
- flange
- locking
- radiant tube
- tube
- sealing flange
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 30
- 230000005855 radiation Effects 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229910003978 SiClx Inorganic materials 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005255 carburizing Methods 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- 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
- F27B13/00—Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge
- F27B13/06—Details, accessories, or equipment peculiar to furnaces of this type
- F27B13/12—Arrangements of heating devices
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
-
- 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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The present invention relates to a kind of annular furnace heating radiation pipes, specifically annular furnace heating radiation tube seal structure, belong to annular furnace technical field of structures.It includes furnace body, radiant tube and heating tube, radiant tube is equipped in furnace body, radiant tube is equipped with locking end face, the upper and lower side of locking end face is respectively equipped with sealing flange and locking flange, and locking end face is clamped up and down and locked sealing flange and locking flanged joint by multiple internal locking bolts by sealing flange and locking flange；Sealing flange upper end is equipped with flange end cap, and sealing flange is pressed on furnace body upper surface and flange end cap, sealing flange and furnace body are connected locking by multiple outer locking bolts by flange end cap.Radiant tube of the invention uses upper and lower two flange seal clampings, improves furnace gas air-tightness；Heating tube is separated with radiant tube, it is ensured that radiant tube makes full use of, and is beneficial to reduce maintenance cost, and in not blowing out, quick-replaceable radiant tube reduces furnace outage time, guarantees the continuity of equipment work.
Description
Technical field
The present invention relates to a kind of annular furnace heating radiation pipes, specifically annular furnace heating radiation tube seal structure, belong to
In annular furnace technical field of structures.
Background technique
It is same using more radiant tubes of multi-region in order to guarantee to be evenly heated in annular furnace furnace in Large Scale and Continuous heating equipment
Shi Jiare.Since the temperature that works long hours in furnace is up to 1000 DEG C or more, it is full of high carbon potential atmosphere in furnace, to guarantee furnace gas sealing
Property, general radiation pipe and heating tube are using integral type heat resisting steel material-structure, and under long-time hot operation state, heating tube makes
There was only 1 year or so with the service life, the later period has the problems such as maintenance blowing out number is frequent, and maintenance cost is high.
Summary of the invention
It is an object of the present invention to overcome the above deficiencies, to provide a kind of annular furnace heating radiation seal of tube knot
Radiant tube and heating tube are separated, and improve the sealing performance of radiant tube by structure, reduce the maintenance cost of equipment.
According to technical solution provided by the invention, annular furnace heating radiation tube seal structure includes furnace body, radiant tube and adds
Heat pipe, it is characterized in that: being equipped with radiant tube in furnace body, radiant tube is equipped with locking end face, and the upper and lower side for locking end face is respectively equipped with
Sealing flange and locking flange, sealing flange and locking flange will lock end face up and down clamp and by multiple internal locking bolts will
Sealing flange and locking flanged joint locking；Sealing flange upper end is equipped with flange end cap, and sealing flange is pressed on by flange end cap
Flange end cap, sealing flange and furnace body are simultaneously connected locking by multiple outer locking bolts by furnace body upper surface；The heating tube is worn
It is protruded into radiant tube after crossing flange end cap and sealing flange.
Further, radiant tube is integrally formed using silicon carbide ceramics micro mist.
Further, multiple outer locking bolts are uniformly distributed along flange end cap circumferencial direction.
Further, gasket seal is equipped between flange end cap and sealing flange.
Further, multiple internal locking bolts are uniformly distributed along sealing flange circumferencial direction.
Compared with the prior art the present invention has the advantage that
The invention has the advantages of simple structure, compactness and reasonable structure, and radiant tube is integrally formed using ceramic material, compared with heat-resisting steel radiant tube,
Service life extends 2 times or more；Radiant tube uses upper and lower two flange seal clampings, improves furnace gas air-tightness；Heating tube and spoke
Pipe to be penetrated to separate, it is ensured that radiant tube makes full use of, and is beneficial to reduce maintenance cost, in not blowing out, quick-replaceable radiant tube,
Furnace outage time is reduced, guarantees the continuity of equipment work.
Detailed description of the invention
Fig. 1 is main view semi-cutaway of the present invention.
Fig. 2 is main view top view of the present invention.
Description of symbols: 1- furnace body, 2- radiant tube, 3- heating tube, 4- flange end cap, 5- gasket seal, 6- outer locking
Bolt, 7- sealing flange, 8- internal locking bolt, 9- locking flange, 10- lock end face.
Specific embodiment
The present invention will be further described in conjunction with the embodiment in attached drawing below:
As shown in Figure 1 and 2, the invention mainly comprises furnace body 1, radiant tube 2 and heating tube 3, furnace body 1 is interior to be equipped with radiant tube 2, radiation
Pipe 2 is equipped with locking end face 10.
The upper and lower side of locking end face 10 is respectively equipped with sealing flange 7 and locking flange 9, and sealing flange 7 and locking flange 9 will
About 10 end face is locked to clamp and pass through multiple internal locking bolts 8 for sealing flange 7 and the locking connection locking of flange 9.
The multiple internal locking bolt 8 is uniformly distributed along 7 circumferencial direction of sealing flange.
7 upper end of sealing flange is equipped with flange end cap 4, and sealing flange 7 is pressed on 1 upper surface of furnace body and led to by flange end cap 4
It crosses multiple outer locking bolts 6 and flange end cap 4, sealing flange 7 and furnace body 1 is connected into locking.
The multiple outer locking bolt 6 is uniformly distributed along 4 circumferencial direction of flange end cap.The flange end cap 4 and sealing
It is equipped with gasket seal 5 between flange 7, leakproofness is improved by gasket seal 5.
The heating tube 3 protrudes into radiant tube 2 after passing through flange end cap 4 and sealing flange 7, and heating tube 3 can radiate
It is freed in and out in pipe 2.The structure that heating tube can be separated with radiant tube, it is ensured that radiant tube makes full use of, and is beneficial to reduce maintenance
Cost, in not blowing out, quick-replaceable radiant tube reduces furnace outage time, guarantees the continuity of equipment work.
The radiant tube is integrally formed using silicon carbide ceramics micro mist, and compared with heat-resisting steel radiant tube, service life is prolonged
Long 2 times or more.
Carburizing, the nitriding atmosphere Equipment for Heating Processing that the present invention is suitable for having seal request, such as large-sized annular carburizer, continuously
Formula carburizing production line, mult-purpose chamber furnace, pit carburizing furnace, nitriding furnace.
The invention has the advantages of simple structure, compactness and reasonable structure, and radiant tube is integrally formed using ceramic material, with heat-resisting steel radiant tube
It compares, service life extends 2 times or more；Radiant tube uses upper and lower two flange seal clampings, improves furnace gas air-tightness；Heating tube
It is separated with radiant tube, it is ensured that radiant tube makes full use of, and is beneficial to reduce maintenance cost, in not blowing out, quick-replaceable spoke
Pipe is penetrated, furnace outage time is reduced, guarantees the continuity of equipment work.
Claims (5)
1. a kind of annular furnace heating radiation tube seal structure, including furnace body (1), radiant tube (2) and heating tube (3), it is characterized in that:
Radiant tube (2) are equipped in furnace body (1), radiant tube (2) is equipped with locking end face (10), and the upper and lower side of locking end face (10) is set respectively
There are sealing flange (7) and locking flange (9), sealing flange (7) and locking flange (9) will lock end face (10) and clamp and lead to up and down
Multiple internal locking bolts (8) are crossed by sealing flange (7) and locking flange (9) connection locking；Sealing flange (7) upper end is equipped with flange
Sealing flange (7) is pressed on furnace body (1) upper surface and will by multiple outer locking bolts (6) by end cap (4), flange end cap (4)
Flange end cap (4), sealing flange (7) and furnace body (1) connection locking；The heating tube (3) passes through flange end cap (4) and Sealing Method
It is protruded into after blue (7) in radiant tube (2).
2. annular furnace heating radiation tube seal structure as described in claim 1, it is characterized in that: the radiant tube (2) uses carbon
SiClx ceramic is integrally formed.
3. annular furnace heating radiation tube seal structure as described in claim 1, it is characterized in that: the multiple outer locking bolt
(6) it is uniformly distributed along flange end cap (4) circumferencial direction.
4. annular furnace heating radiation tube seal structure as described in claim 1, it is characterized in that: the flange end cap (4) and close
It seals between flange (7) and is equipped with gasket seal (5).
5. annular furnace heating radiation tube seal structure as described in claim 1, it is characterized in that: the multiple internal locking bolt
(8) it is uniformly distributed along sealing flange (7) circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506262.XA CN109612270A (en) | 2018-12-10 | 2018-12-10 | Annular furnace heating radiation tube seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506262.XA CN109612270A (en) | 2018-12-10 | 2018-12-10 | Annular furnace heating radiation tube seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109612270A true CN109612270A (en) | 2019-04-12 |
Family
ID=66008790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811506262.XA Pending CN109612270A (en) | 2018-12-10 | 2018-12-10 | Annular furnace heating radiation tube seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109612270A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647868Y (en) * | 2003-08-27 | 2004-10-13 | 黄石山力涂镀层工程技术有限公司 | Electric radiant tube heating device for strip steel continuous heat treating furnace |
| CN2688011Y (en) * | 2004-01-19 | 2005-03-23 | 上海宝华威热处理设备有限公司 | Silicon carbide radiating tube heater |
| CN201539867U (en) * | 2009-09-07 | 2010-08-04 | 施芜 | Mounting structure of ceramic tube or ceramic radiant tube for burner |
| CN202643764U (en) * | 2012-06-18 | 2013-01-02 | 武汉钢铁(集团)公司 | Rotatable type I sleeve type radiant tube |
| CN206260096U (en) * | 2016-12-06 | 2017-06-16 | 江苏华海冶金机械设备有限公司 | Energy-saving electrical radiant tube heater |
| CN209371769U (en) * | 2018-12-10 | 2019-09-10 | 天龙科技炉业(无锡)有限公司 | Annular furnace heating radiation tube seal structure |
-
2018
- 2018-12-10 CN CN201811506262.XA patent/CN109612270A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647868Y (en) * | 2003-08-27 | 2004-10-13 | 黄石山力涂镀层工程技术有限公司 | Electric radiant tube heating device for strip steel continuous heat treating furnace |
| CN2688011Y (en) * | 2004-01-19 | 2005-03-23 | 上海宝华威热处理设备有限公司 | Silicon carbide radiating tube heater |
| CN201539867U (en) * | 2009-09-07 | 2010-08-04 | 施芜 | Mounting structure of ceramic tube or ceramic radiant tube for burner |
| CN202643764U (en) * | 2012-06-18 | 2013-01-02 | 武汉钢铁(集团)公司 | Rotatable type I sleeve type radiant tube |
| CN206260096U (en) * | 2016-12-06 | 2017-06-16 | 江苏华海冶金机械设备有限公司 | Energy-saving electrical radiant tube heater |
| CN209371769U (en) * | 2018-12-10 | 2019-09-10 | 天龙科技炉业(无锡)有限公司 | Annular furnace heating radiation tube seal structure |
Non-Patent Citations (1)
| Title |
|---|
| 刘维良: "《先进陶瓷工艺学》", 武汉理工大学出版社, pages: 195 * |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |