CN202171096U - Sealing thermal-insulating structure on an exit and an entrance of a conversion section furnace tube - Google Patents
Sealing thermal-insulating structure on an exit and an entrance of a conversion section furnace tube Download PDFInfo
- Publication number
- CN202171096U CN202171096U CN2011202781002U CN201120278100U CN202171096U CN 202171096 U CN202171096 U CN 202171096U CN 2011202781002 U CN2011202781002 U CN 2011202781002U CN 201120278100 U CN201120278100 U CN 201120278100U CN 202171096 U CN202171096 U CN 202171096U
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- Prior art keywords
- ceramic fiber
- fiber blanket
- section
- heating tube
- heat
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- 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.)
- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 title abstract description 6
- 239000000919 ceramic Substances 0.000 claims abstract description 64
- 239000000835 fiber Substances 0.000 claims abstract description 64
- 239000004744 fabric Substances 0.000 claims abstract description 28
- 210000000056 organ Anatomy 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims description 38
- 238000009413 insulation Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000010079 rubber tapping Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 241000233855 Orchidaceae Species 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a sealing thermal-insulating structure on an exit and an entrance of a conversion section furnace tube, comprising an outer thermal-insulating layer of the conversion section furnace tube, a sleeve, a ceramic fiber blanket and a heat-proof rain-proof organ shaped cloth, wherein the outer surface of the conversion section furnace tube is enwrapped by the ceramic fiber blanket, the sleeve is sleeved with the ceramic fiber blanket; the heat-proof rain-proof organ shaped cloth is respectively fixedly connected with the sleeve and the outer thermal-insulating layer of the conversion section furnace tube to form a sealed and telescopic structure. The sealing thermal-insulating structure has features of relative good sealing and thermal-insulating effect, long-period operation, convenient manufacture and repair, safety and reliability.
Description
Technical field
The utility model relates to the chemical industry equipment field, says further, relates to a kind of heating tube in section of convection chamber gateway sealing insulating structure.
Background technique
Industrial furnace (comprise various oven, hydrogen manufacturing conversion furnace and ethane cracking furnace, down with) heating tube in section of convection chamber is one of parts most crucial in the industrial furnace, and it mainly acts on is to reclaim heat in the high-temperature flue gas with preheating material and steam.Because of the flue-gas temperature that gets into convection section up to more than 1200 ℃, so heating tube in section of convection chamber part gateway temperature is higher, Given this, be necessary the better seal insulation is carried out in heating tube in section of convection chamber part gateway.
At present, common heating tube in section of convection chamber gateway sealing insulating structure is: directly on the pipe of gateway, wrap up certain thickness ceramic fiber blanket, tie up one deck iron sheet at the outer surface of ceramic fiber blanket then.
(cold conditions) to the sealing of heating tube in section of convection chamber gateway better under running state not for above-mentioned sealing insulating structure; But under running state (hot); Because of heating tube in section of convection chamber meeting expanded by heating; So ceramic fiber blanket and outer surface iron sheet thereof can move with the convection current coil pipe, thereby cause heating tube in section of convection chamber gateway part pipeline section to expose in atmosphere.
The shortcoming of this sealing insulating structure is: 1, exposed pipeline section can cause certain radiation loss, does not play due sealing heat insulation effect; 2, exposed pipeline section can suffer rain-out, influences boiler tube working life; 3, because exposed pipeline section temperature is higher, scald the people easily, very dangerous.
The model utility content
For solving the problem that exists in the existing technology, the utility model provides a kind of heating tube in section of convection chamber gateway sealing insulating structure.But have better seal heat insulation effect long-term operation, manufacturing and easy to maintenance, safe and reliable.
The purpose of the utility model provides a kind of heating tube in section of convection chamber gateway sealing insulating structure.
Comprise heating tube in section of convection chamber external thermal insulation, sleeve pipe, ceramic fiber blanket and heat-resisting rainproof organ shape cloth,
Said ceramic fiber blanket is wrapped in the heating tube in section of convection chamber outer surface, and ceramic fiber blanket is with sleeve pipe outward;
Said heat-resisting rainproof organ shape cloth is fixedly connected with the heating tube in section of convection chamber external thermal insulation with sleeve pipe respectively, forms the telescopic structure of sealing;
Said heat-resisting rainproof organ shape cloth preferably is connected with sleeve pipe through clip or flange; Flange is plate method for making orchid and auxiliary connection thereof preferably;
Said heat-resisting rainproof organ shape cloth preferably is connected with the heating tube in section of convection chamber external thermal insulation through tapping screw;
Said ceramic fiber blanket is preferably tied up fixed packet through heat-resistant steel wire and is wrapped in the heating tube in section of convection chamber outer surface.
When sleeve pipe in header box wallboard both sides internal diameter not simultaneously, said ceramic fiber blanket is two: ceramic fiber blanket one and ceramic fiber blanket two;
The paving mode of ceramic fiber blanket can adopt one of following dual mode:
Said ceramic fiber blanket is laid on boiler tube convection section outer surface for two layers, and ceramic fiber blanket one deck is laid on the outer surface of the ceramic fiber blanket two in the header box wallboard outside; Two ceramic fiber blankets are tied up fixing respectively with heat-resistant steel wire;
Said ceramic fiber blanket is laid on boiler tube convection section outer surface for two layers, ties up fixing with heat-resistant steel wire; Ceramic fiber blanket one be close to the header box wallboard outside ceramic fiber blanket two outer surface and along boiler tube axial compression small pieces of cloth used for patches.
Compare with existing sealing insulating structure, the heating tube in section of convection chamber gateway sealing insulating structure of the utility model has the following advantages:
1, heat-resisting rainproof organ shape cloth can stretch with boiler tube with boiler tube, can play the effect of rainproof sealing preferably;
2, ceramic fiber blanket can play insulation effect preferably to boiler tube through different insulating structures;
3, this structure is made and keeps in repair all comparatively simple and convenient;
4, this structure is not fragile in running, the ability long-term operation, and safe and reliable.
Description of drawings
Fig. 1 casing inner diameter not simultaneously, ceramic fiber blanket is all along the structural representation of outer surface of furnace tube layer shop
Fig. 2 casing inner diameter not simultaneously, the structural representation of ceramic fiber blanket shop and compression shop
Structural representation when Fig. 3 casing inner diameter is identical
Description of reference numerals:
1a-sleeve pipe one; 1b-sleeve pipe two; The heat-resisting rainproof organ shape cloth of 2-; The 3-tapping screw; The 4-clip; The 5-heat-resistant steel wire; 6a-ceramic fiber blanket one; 6b-ceramic fiber blanket two; 7-plate method for making orchid and auxiliary connection thereof; 8-header box wallboard; 9-boiler tube external thermal insulation; D1-sleeve pipe one internal diameter; D2-sleeve pipe two internal diameters;
Embodiment
Below in conjunction with embodiment, further specify the utility model.
Embodiment 1
As shown in Figure 1; A kind of heating tube in section of convection chamber gateway sealing insulating structure; Casing inner diameter is different; Represent with sleeve pipe one 1a and sleeve pipe two 1b respectively, comprising: heating tube in section of convection chamber external thermal insulation 9, sleeve pipe one 1a, sleeve pipe two 1b, heat-resisting rainproof organ shape cloth 2, ceramic fiber blanket one 6a and ceramic fiber blanket two 6b.
Ceramic fiber blanket two 6b layers are laid on boiler tube convection section outer surface, and ceramic fiber blanket layer one 6a is laid on the outer surface of ceramic fiber blanket two 6b in header box wallboard 8 outsides; Two ceramic fiber blankets are tied up fixing with heat-resistant steel wire 5 respectively;
Sleeve pipe two 1b are arranged on header box wallboard 8 inboards, are enclosed within outside ceramic fiber blanket two 6b; Sleeve pipe one 1a is arranged on header box wallboard 8 outsides, is enclosed within outside ceramic fiber blanket one 6a;
Heat-resisting rainproof organ shape cloth 2 is connected with sleeve pipe one 1a through clip 4, and heat-resisting rainproof organ shape cloth 2 is connected with heating tube in section of convection chamber external thermal insulation 9 through tapping screw 3, forms the telescopic structure of sealing.
During installation,
Secondly at first sleeve pipe two 1b, sleeve pipe one 1a are welded in header box wallboard 8 medial and lateral, ceramic fiber blanket two 6b and ceramic fiber blanket one 6a successively layer are laid on outer surface of furnace tube, and with heat-resistant steel wire 5 it is tied up respectively.End with the rainproof organ shape of heat cloth 2 is connected with sleeve pipe one 1a with clip 4 at last, and the other end is connected with boiler tube external thermal insulation 9 with tapping screw 3.
Embodiment 2:
As shown in Figure 2; A kind of heating tube in section of convection chamber gateway sealing insulating structure; Casing inner diameter is different; Represent with sleeve pipe one 1a and sleeve pipe two 1b respectively, comprising: heating tube in section of convection chamber external thermal insulation 9, sleeve pipe one 1a, sleeve pipe two 1b, heat-resisting rainproof organ shape cloth 2, ceramic fiber blanket one 6a and ceramic fiber blanket two 6b.
Ceramic fiber blanket two 6b layers are laid on boiler tube convection section outer surface, tie up with heat-resistant steel wire 5 fixing, ceramic fiber blanket one 6a be close to header box wallboard 8 outsides ceramic fiber blanket two 6b outer surface and along boiler tube axial compression small pieces of cloth used for patches;
Sleeve pipe two 1b are arranged on header box wallboard 8 inboards, are enclosed within outside ceramic fiber blanket two 6b; Sleeve pipe one 1a is arranged on header box wallboard 8 outsides, is enclosed within outside ceramic fiber blanket one 6a;
Heat-resisting rainproof organ shape cloth 2 is connected with sleeve pipe one 6a through plate method for making orchid and auxiliary connection 7 thereof; Heat-resisting rainproof organ shape cloth 2 is connected with heating tube in section of convection chamber external thermal insulation 9 through tapping screw 3, forms the telescopic structure of sealing.
During installation; At first sleeve pipe two 1b and sleeve pipe one 1a are welded in header box wallboard 8 medial and lateral; Secondly earlier ceramic fiber blanket two 6b layers are laid on outer surface of furnace tube; And with heat-resistant steel wire 5 it is tied up, after ceramic fiber blanket one 6a is close to ceramic fiber blanket two 6b outer surfaces and along boiler tube axial compression small pieces of cloth used for patches.End with the rainproof organ shape of heat cloth 2 is connected with sleeve pipe one 1a with plate method for making orchid and auxiliary connection 7 thereof at last, and the other end is connected with boiler tube external thermal insulation 9 with tapping screw 3.
As shown in Figure 3, sealing insulating structure in a kind of heating tube in section of convection chamber gateway comprises: heating tube in section of convection chamber external thermal insulation 9, sleeve pipe one 1a, heat-resisting rainproof organ shape cloth 2 and ceramic fiber blanket two 6b.
Ceramic fiber blanket two 6b layers are laid on boiler tube convection section outer surface, tie up fixing with heat-resistant steel wire 5; Sleeve pipe one 1a is enclosed within outside ceramic fiber blanket two 6b;
Heat-resisting rainproof organ shape cloth 2 is connected with sleeve pipe one 1a through plate method for making orchid and auxiliary connection 7 thereof; Heat-resisting rainproof organ shape cloth 2 is connected with heating tube in section of convection chamber external thermal insulation 9 through tapping screw 3, forms the telescopic structure of sealing.
During installation,
At first sleeve pipe one is welded in header box wallboard 8 medial and lateral.Secondly ceramic fiber blanket two 6b layers are laid on outer surface of furnace tube, and it are tied up with heat-resistant steel wire 5.End with the rainproof organ shape of heat cloth 2 is connected with sleeve pipe one 1a with plate method for making orchid and auxiliary connection 7 thereof at last, and the other end is connected with boiler tube external thermal insulation 9 with tapping screw 3.
Claims (6)
1. a heating tube in section of convection chamber gateway seals insulating structure, it is characterized in that:
Said insulating structure comprises heating tube in section of convection chamber external thermal insulation, sleeve pipe, ceramic fiber blanket and heat-resisting rainproof organ shape cloth,
Said ceramic fiber blanket is wrapped in the heating tube in section of convection chamber outer surface, and ceramic fiber blanket is with sleeve pipe outward;
Said heat-resisting rainproof organ shape cloth is fixedly connected with the heating tube in section of convection chamber external thermal insulation with sleeve pipe respectively, forms the telescopic structure of sealing.
2. sealing insulating structure in heating tube in section of convection chamber as claimed in claim 1 gateway is characterized in that:
Said heat-resisting rainproof organ shape cloth is connected with sleeve pipe through clip or flange;
Said heat-resisting rainproof organ shape cloth is connected with the heating tube in section of convection chamber external thermal insulation through tapping screw.
3. sealing insulating structure in heating tube in section of convection chamber as claimed in claim 2 gateway is characterized in that:
Said ceramic fiber blanket is tied up fixed packet through heat-resistant steel wire and is wrapped in the heating tube in section of convection chamber outer surface.
4. sealing insulating structure in heating tube in section of convection chamber as claimed in claim 1 gateway is characterized in that:
Said sleeve pipe in header box wallboard both sides internal diameter not simultaneously, said ceramic fiber blanket is two: ceramic fiber blanket one and ceramic fiber blanket two.
5. sealing insulating structure in heating tube in section of convection chamber as claimed in claim 4 gateway is characterized in that:
Said ceramic fiber blanket is laid on boiler tube convection section outer surface for two layers, and ceramic fiber blanket one deck is laid on the outer surface of the ceramic fiber blanket two in the header box wallboard outside; Two ceramic fiber blankets are tied up fixing respectively with heat-resistant steel wire.
6. sealing insulating structure in heating tube in section of convection chamber as claimed in claim 4 gateway is characterized in that:
Said ceramic fiber blanket is laid on boiler tube convection section outer surface for two layers, ties up fixing with heat-resistant steel wire; Ceramic fiber blanket one be close to the header box wallboard outside ceramic fiber blanket two outer surface and along boiler tube axial compression small pieces of cloth used for patches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202781002U CN202171096U (en) | 2011-08-02 | 2011-08-02 | Sealing thermal-insulating structure on an exit and an entrance of a conversion section furnace tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202781002U CN202171096U (en) | 2011-08-02 | 2011-08-02 | Sealing thermal-insulating structure on an exit and an entrance of a conversion section furnace tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171096U true CN202171096U (en) | 2012-03-21 |
Family
ID=45829292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202781002U Expired - Lifetime CN202171096U (en) | 2011-08-02 | 2011-08-02 | Sealing thermal-insulating structure on an exit and an entrance of a conversion section furnace tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171096U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829465A (en) * | 2012-09-17 | 2012-12-19 | 宜兴摩根热陶瓷有限公司 | Furnace top sealing structure of styrene steam superheating furnace |
| CN103062752A (en) * | 2012-12-30 | 2013-04-24 | 深圳市广前电力有限公司 | Heat insulation structure for through-wall pipe of gas-turbine waste heat boiler |
| CN103851909A (en) * | 2013-01-10 | 2014-06-11 | 洛阳瑞泽石化工程有限公司 | Connecting structure for bend header and end face beam of convection chamber of tube heating furnace |
-
2011
- 2011-08-02 CN CN2011202781002U patent/CN202171096U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829465A (en) * | 2012-09-17 | 2012-12-19 | 宜兴摩根热陶瓷有限公司 | Furnace top sealing structure of styrene steam superheating furnace |
| CN102829465B (en) * | 2012-09-17 | 2014-07-30 | 宜兴摩根热陶瓷有限公司 | Furnace top sealing structure of styrene steam superheating furnace |
| CN103062752A (en) * | 2012-12-30 | 2013-04-24 | 深圳市广前电力有限公司 | Heat insulation structure for through-wall pipe of gas-turbine waste heat boiler |
| CN103062752B (en) * | 2012-12-30 | 2016-01-20 | 深圳市广前电力有限公司 | For the thermal insulation structure of combustion engine waste heat boiler wall pipe |
| CN103851909A (en) * | 2013-01-10 | 2014-06-11 | 洛阳瑞泽石化工程有限公司 | Connecting structure for bend header and end face beam of convection chamber of tube heating furnace |
| CN103851909B (en) * | 2013-01-10 | 2015-10-07 | 洛阳瑞泽石化工程有限公司 | A kind of convection chamber header box of pipe type heating stove and end face beam connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Sinopec Engineering Incorporation Patentee after: China Petrochemical Group Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: Engrg Construction Co., SINOPEC Patentee before: China Petrochemical Group Corp. |
|
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SINOPEC ENGINEERING INCORPORATION Effective date: 20130124 Owner name: SINOPEC ENGINEERING INCORPORATION Free format text: FORMER OWNER: SINOPEC GROUP Effective date: 20130124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100728 CHAOYANG, BEIJING TO: 100101 CHAOYANG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130124 Address after: Anhui Beili Anyuan 21 No. 100101 Beijing Chaoyang District City Patentee after: Sinopec Engineering Incorporation Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Sinopec Engineering Incorporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |