CN203602660U - Heating mantle for bell-type furnace - Google Patents
Heating mantle for bell-type furnace Download PDFInfo
- Publication number
- CN203602660U CN203602660U CN201320708138.8U CN201320708138U CN203602660U CN 203602660 U CN203602660 U CN 203602660U CN 201320708138 U CN201320708138 U CN 201320708138U CN 203602660 U CN203602660 U CN 203602660U
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- China
- Prior art keywords
- wall
- cover body
- inwall
- furnace heating
- heating mantles
- 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.)
- Expired - Lifetime
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 46
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 238000005192 partition Methods 0.000 claims description 23
- 239000000835 fiber Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model discloses a heating mantle for a bell-type furnace, a heat exchanger can be detachably arranged on the outside of a mantle body, a heat exchanger comprises an inner wall, an outer wall, a top wall, a bottom wall, spacers and a shell, the inner wall forms a flue gas channel, the outer wall is fixed sleeved out of the inner wall, the top wall is used for combining and fixing the upper ends of the inner wall and the outer wall, the bottom wall is used for combining and fixing the lower ends of the inner wall and the outer wall; the spacers are arranged between cavities formed by the inner wall, the outer wall, the top wall and the bottom wall to divide the cavity into an inner cavity and an outer cavity, wherein the upper ends of the inner cavity and the outer cavity are communicated, and the lower ends of the inner cavity and the outer cavity are isolated from each other; the bottom wall of the inner cavity is provided with an air inlet, the bottom wall of the outer cavity body is provided with an air outlet, the lower end of the flue gas channel is communicated with a flue gas outlet of the mantle body, the gas inlet end of a nozzle and a combustion air inlet end are arranged at the outside of the mantle body. The heating mantle for the bell-type furnace is convenient to detach and maintain.
Description
Technical field
The utility model relates to perhydro gas cover type annealing furnace, particularly a kind of bell furnace heating mantles.
Background technology
Perhydro gas cover type annealing furnace is widely used in the industries such as metallurgy, machinery, non-ferrous metal.
Chinese patent 00240561.x discloses a kind of cover type furnace heating cover, as shown in Figure 1, on the circular or square cover body being formed by 1～8 section of cylindrical shell, 1～18 burner 1 is housed, article 1～18, air line 2 and gas line 3, raising legs and l～4 cover fume extractor are arranged at cover body top, and cover body liner adopts 20～50mm high-temperature fibre blanket 6 to be wrapped in 1～18 cover combustion air pipeline and interchanger 7 by 1～10 kind of thickness, 1～6 guide arm is arranged at cover body bottom, and bottom is tongued and grooved flanges 9.
The disclosed cover type furnace heating cover of Chinese patent 00240561.x, interchanger, burner adopt embedding structure form, and combustion air pipeline is arranged in cover body inside, after interchanger and pipeline welding, is arranged in cover body inside., there is in process of production following problem in the cover type furnace heating cover of this structure:
(1) cover type furnace heating cover, in process of production, in interchanger, flue-gas temperature reaches 800 ℃～900 ℃, and long term operation is under alternating hot and cold load, interchanger and pipeline adopt welding process to be connected, tend to because thermal expansion and lifting shake the defect that the thermal crack brought causes, and weld seam is easy to crack.
(2) interchanger is arranged in heating mantles cover body, in the time that interchanger need to be safeguarded replacing, needs first will after the dismounting of heating mantles cover body, just can carry out, and is not easy to dismounting, and servicing time is long, and the cost of overhaul is high.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of bell furnace heating mantles, is convenient to dismounting, and the cost of overhaul is low.
For solving the problems of the technologies described above, the bell furnace heating mantles that the utility model provides, comprises cover body, interchanger; Described cover body, is provided with an exhanst gas outlet;
Described interchanger, is removably mounted on described cover body outside;
The entrance of the exhaust gases passes of described interchanger is communicated with the exhanst gas outlet of described cover body.
Preferably, described interchanger, comprises inwall, outer wall, roof, diapire, partition, housing;
Described inwall, forms an exhaust gases passes;
Described outer wall, permanent sleeve is located at outside described inwall;
Described roof, is fixed together described inwall, outer wall upper end;
Described diapire, is fixed together described inwall, outer wall lower end;
Described partition, be arranged between the cavity of inwall, outer wall, roof and diapire formation, partition lower end is fixed together with described diapire, and upper end isolates with described roof, the cavity between inwall, outer wall, roof and diapire is divided into inner chamber body and the outer chamber of connection lower end, upper end isolation;
Inner chamber body is at inwall with between partition, and outer chamber is followed between partition at outer wall;
On the diapire of described inner chamber body, be provided with air inlet;
On the diapire of described outer chamber, be provided with air air outlet;
Described inwall, outer wall, roof and diapire, be fixed in described housing;
The lower end of described exhaust gases passes is communicated with the exhanst gas outlet of described cover body.
Preferably, described inwall is with being provided with fin between described partition.
Preferably, described inwall, outer wall, roof and diapire, with between described housing, are filled with heat-insulating heat-preserving material.
Preferably, described cover body, outer, top arranges top board;
Described exhanst gas outlet, is arranged in cover body upper portion side wall;
Described interchanger, is removably mounted on described cover body upper outside;
The upper end of described exhaust gases passes, is communicated with an elastic telescopic pipe and a flange, is fixed on described top board by flange;
The lower end of described exhaust gases passes, is communicated with the exhanst gas outlet of described cover body by flange.
Preferably, bell furnace heating mantles, also comprises air ring;
Described air ring, is arranged on outside, described cover body middle part;
Described air ring, is communicated to described air inlet through air magnetic valve, throttling element.
Preferably, bell furnace heating mantles, also comprises burner, burning line, combustion air pipeline;
Described burner, is fixed on described cover body bottom;
The spitfire end of described burner, is positioned at described cover body lower inside;
The gas inlet end of described burner and combustion air inlet end, be positioned at described cover body lower outside;
Described combustion air pipeline, is removably communicated with in described air air outlet between the combustion air inlet end with described burner.
Preferably, described combustion air pipeline, is removably communicated to described air air outlet by expansion joint.
Preferably, described cover body, the sealing member that ceramic fiber is made is equipped with in bottom.
Bell furnace heating mantles of the present utility model, interchanger is removably mounted on cover body outside; Interchanger comprises inwall, outer wall, roof, diapire, partition, housing; Inwall, forms an exhaust gases passes; Outer wall permanent sleeve is located at outside inwall; Roof is fixed together inwall, outer wall upper end; Diapire is fixed together inwall, outer wall lower end; Partition arranges between the cavity of inwall, outer wall, roof and diapire formation, this cavity is divided into inner chamber body and the outer chamber of connection lower end, upper end isolation; On the diapire of inner chamber body, be provided with air inlet; On the diapire of outer chamber, be provided with air air outlet; The lower end of exhaust gases passes is communicated with the exhanst gas outlet of cover body; The gas inlet end of burner and combustion air inlet end are positioned at cover body outside.Bell furnace heating mantles of the present utility model, is convenient to dismounting, maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, below the accompanying drawing of the required use of the utility model is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the disclosed cover type furnace heating cover of Chinese patent 00240561.x;
Fig. 2 is bell furnace of the present utility model heating mantles one embodiment schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the utility model is carried out to clear, complete description, obviously, described embodiment is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, all other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belong to the scope that the utility model is protected.
Embodiment mono-
Bell furnace heating mantles, as shown in Figure 2, comprises cover body, interchanger;
Described cover body, is provided with an exhanst gas outlet;
Described interchanger, is removably mounted on described cover body outside;
The entrance of the exhaust gases passes of described interchanger is communicated with the exhanst gas outlet of described cover body.
The bell furnace heating mantles of embodiment mono-, interchanger is arranged on cover body outside, is convenient to dismounting, maintenance.
Embodiment bis-
Bell furnace heating mantles based on embodiment mono-, described interchanger, comprises inwall, outer wall, roof, diapire, partition, housing;
Described inwall, forms an exhaust gases passes;
Described outer wall, permanent sleeve is located at outside described inwall;
Described roof, is fixed together described inwall, outer wall upper end;
Described diapire, is fixed together described inwall, outer wall lower end;
Described partition, be arranged between the cavity of inwall, outer wall, roof and diapire formation, partition lower end is fixed together with described diapire, and upper end isolates with described roof, the cavity between inwall, outer wall, roof and diapire is divided into inner chamber body and the outer chamber of connection lower end, upper end isolation;
Inner chamber body is at inwall with between partition, and outer chamber is followed between partition at outer wall;
On the diapire of described inner chamber body, be provided with air inlet;
On the diapire of described outer chamber, be provided with air air outlet;
Described inwall, outer wall, roof and diapire, be fixed in described housing;
The lower end of described exhaust gases passes is communicated with the exhanst gas outlet of described cover body.
Preferably, described inwall is with being provided with fin between described partition, to improve heat exchanger effectiveness.
Preferably, described inwall, outer wall, roof and diapire, with between described housing, are filled with heat-insulating heat-preserving material.
The bell furnace heating mantles of embodiment bis-, high-temperature flue gas in cover body enters by exhanst gas outlet the exhaust gases passes inside that interchanger inwall forms, combustion air enters at outer wall with the outer chamber between partition by air inlet, then enter at inwall with the inner chamber body between partition by partition upper end, high-temperature flue gas countercurrent flow in inner chamber body and exhaust gases passes is carried out after heat exchange, deliver to each burner from air air outlet, heat exchanger effectiveness is high.
Embodiment tri-
Bell furnace heating mantles based on embodiment bis-, described cover body, outer, top arranges top board;
Described exhanst gas outlet, is arranged in cover body upper portion side wall;
Described interchanger, is removably mounted on described cover body upper outside;
The upper end of described exhaust gases passes, is communicated with an elastic telescopic pipe and a flange, is fixed on described top board by flange;
The lower end of described exhaust gases passes, is communicated with the exhanst gas outlet of described cover body by flange.
Preferably, bell furnace heating mantles, also comprises air ring; Described air ring, is arranged on outside, described cover body middle part; Described air ring, is communicated to described air inlet through air magnetic valve, throttling element, and combustion air is delivered to the air inlet of interchanger through air ring, air magnetic valve, throttling element.
The bell furnace heating mantles of embodiment tri-, is fixed to the top board of described cover body by elastic telescopic pipe in the upper end of the exhaust gases passes of interchanger, reduced alternating hot and cold load and caused the impact of polar expansion on the weld seam between inwall, outer wall, roof and diapire.
Embodiment tetra-
Bell furnace heating mantles based on embodiment bis-, bell furnace heating mantles, also comprises burner, burning line, combustion air pipeline;
Described burner, is fixed on described cover body bottom;
The spitfire end of described burner, is positioned at described cover body lower inside;
The gas inlet end of described burner and combustion air inlet end, be positioned at described cover body lower outside;
Described combustion air pipeline, is removably communicated with in described air air outlet between the combustion air inlet end with described burner.
Preferably, described combustion air pipeline, is removably communicated to described air air outlet by expansion joint.
Preferably, described cover body, adopts carbon steel sheet to make, and uses structure iron to reinforce, and the sealing member that ceramic fiber is made is equipped with in bottom, makes heating mantles cover body and bell furnace inner cover reach sealing, to reduce waste gas and heat-energy losses.
The bell furnace heating mantles of embodiment tetra-, the gas inlet end of burner and combustion air inlet end are positioned at cover body outside, combustion air pipeline is removably communicated with between the combustion air inlet end with burner of air air outlet at interchanger, can Fast Installation and dismounting, be convenient to burner to overhaul.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of the utility model protection.
Claims (10)
1. a bell furnace heating mantles, comprises cover body, interchanger; It is characterized in that,
Described cover body, is provided with an exhanst gas outlet;
Described interchanger, is removably mounted on described cover body outside;
The entrance of the exhaust gases passes of described interchanger is communicated with the exhanst gas outlet of described cover body.
2. bell furnace heating mantles according to claim 1, is characterized in that,
Described interchanger, comprises inwall, outer wall, roof, diapire, partition, housing;
Described inwall, forms an exhaust gases passes;
Described outer wall, permanent sleeve is located at outside described inwall;
Described roof, is fixed together described inwall, outer wall upper end;
Described diapire, is fixed together described inwall, outer wall lower end;
Described partition, be arranged between the cavity of inwall, outer wall, roof and diapire formation, partition lower end is fixed together with described diapire, and upper end isolates with described roof, the cavity between inwall, outer wall, roof and diapire is divided into inner chamber body and the outer chamber of connection lower end, upper end isolation;
Inner chamber body is at inwall with between partition, and outer chamber is followed between partition at outer wall;
On the diapire of described inner chamber body, be provided with air inlet;
On the diapire of described outer chamber, be provided with air air outlet;
Described inwall, outer wall, roof and diapire, be fixed in described housing;
The lower end of described exhaust gases passes is communicated with the exhanst gas outlet of described cover body.
3. bell furnace heating mantles according to claim 2, is characterized in that,
Described inwall is with being provided with fin between described partition.
4. bell furnace heating mantles according to claim 2, is characterized in that,
Described inwall, outer wall, roof and diapire, with between described housing, are filled with heat-insulating heat-preserving material.
5. bell furnace heating mantles according to claim 4, is characterized in that,
Described heat-insulating heat-preserving material is ceramic fiber cotton.
6. bell furnace heating mantles according to claim 2, is characterized in that,
Described cover body, outer, top arranges top board;
Described exhanst gas outlet, is arranged in cover body upper portion side wall;
Described interchanger, is removably mounted on described cover body upper outside;
The upper end of described exhaust gases passes, is communicated with an elastic telescopic pipe and a flange, is fixed on described top board by flange;
The lower end of described exhaust gases passes, is communicated with the exhanst gas outlet of described cover body by flange.
7. bell furnace heating mantles according to claim 6, is characterized in that,
Bell furnace heating mantles, also comprises air ring;
Described air ring, is arranged on outside, described cover body middle part;
Described air ring, is communicated to described air inlet through air magnetic valve, throttling element.
8. bell furnace heating mantles according to claim 2, is characterized in that,
Bell furnace heating mantles, also comprises burner, burning line, combustion air pipeline;
Described burner, is fixed on described cover body bottom;
The spitfire end of described burner, is positioned at described cover body lower inside;
The gas inlet end of described burner and combustion air inlet end, be positioned at described cover body lower outside;
Described combustion air pipeline, is removably communicated with in described air air outlet between the combustion air inlet end with described burner.
9. bell furnace heating mantles according to claim 8, is characterized in that,
Described combustion air pipeline, is removably communicated to described air air outlet by expansion joint.
10. bell furnace heating mantles according to claim 9, is characterized in that,
Described cover body, the sealing member that ceramic fiber is made is equipped with in bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320708138.8U CN203602660U (en) | 2013-11-11 | 2013-11-11 | Heating mantle for bell-type furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320708138.8U CN203602660U (en) | 2013-11-11 | 2013-11-11 | Heating mantle for bell-type furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203602660U true CN203602660U (en) | 2014-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320708138.8U Expired - Lifetime CN203602660U (en) | 2013-11-11 | 2013-11-11 | Heating mantle for bell-type furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203602660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104726685A (en) * | 2015-02-12 | 2015-06-24 | 宁波宝新不锈钢有限公司 | Combustion-supporting air conduit and stainless steel hood-type annealing furnace with same |
-
2013
- 2013-11-11 CN CN201320708138.8U patent/CN203602660U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104726685A (en) * | 2015-02-12 | 2015-06-24 | 宁波宝新不锈钢有限公司 | Combustion-supporting air conduit and stainless steel hood-type annealing furnace with same |
| CN104726685B (en) * | 2015-02-12 | 2017-03-08 | 宁波宝新不锈钢有限公司 | A kind of comburent air duct and the stainless steel cover type annealing furnace being provided with this comburent air duct |
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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: 20140521 |