CN202709153U - Separated cabin heat transfer type flue - Google Patents
Separated cabin heat transfer type flue Download PDFInfo
- Publication number
- CN202709153U CN202709153U CN2012203262214U CN201220326221U CN202709153U CN 202709153 U CN202709153 U CN 202709153U CN 2012203262214 U CN2012203262214 U CN 2012203262214U CN 201220326221 U CN201220326221 U CN 201220326221U CN 202709153 U CN202709153 U CN 202709153U
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- CN
- China
- Prior art keywords
- flue
- water
- dividing plate
- cooling wall
- partition board
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a separated cabin heat transfer type flue which comprises a flue water wall. A cooling water inlet of the flue water wall is connected with a flue inlet header, and a cooling water outlet is connected with a flue outlet header. The key is that a closed area encircled by the flue water wall is divided into more than two areas by partition board water walls, cooling water inlets of the partition board water walls are connected with partition board inlet headers, and cooling water outlets are connected with partition board outlet headers; and a partition board guide device is arranged in the closed area encircled by the flue water wall, and the flue water wall, the partition board inlet headers and the partition board inlet headers are fixed in the flue by the partition board guide device. According to the separated cabin heat transfer type flue which comprises the flue water wall, a plurality of cabins are separated by the partition board water walls, high-temperature flue gas flowing in the cabins performs radiant heat transfer with the partition board water walls, and accordingly, the flue heat transfer area is increased, and the flue heat transfer capability of the flue is improved.
Description
Technical field
The utility model relates to a kind of heat transfer flue.
Background technology
Often utilize the flue wall to absorb the heat of high-temperature flue gas in the flue as heat-transfer surface in the waste heat recovery field, such as converter evaporation cooling air flue, electric furnace water-cooling flue etc. in the smelter.Flue is to be welded into circle or polygon fin panel casing by set of heat exchange tubes, and water flows in heat exchanger tube, and high-temperature flue gas flows outside heat exchanger tube, and by radiation, convection type medium heat-transfer in the heat exchanger tube, wherein heat radiation is main heat transfer type.But in residual heat flue, as heat exchange area, heat exchange area is limited to flue gas with walling of flue.
Flue outlet cigarette temperature is generally at 850 ℃ ~ 900 ℃ at present, for the flue-gas temperature that makes discharge drops to below 600 ℃ commonly used by two kinds of methods: a kind of is the length that increases flue, but this will directly cause increasing or increasing of technique factory building, affecting process equipment arranges, increase the construction investment expense, the difficulty of also bringing to design.Another kind is to increase the flue basal area, the residual neat recovering system flue gas is extracted out by the air-introduced machine of flue or recovery system end, for avoiding the air-introduced machine inspiratory resistance too large, flue gas flow rate is unsuitable too high, therefore the flue basal area is larger, reach 3m such as 120t converter flue diameter, consider flue processing and manufacturing difficulty and traffic condition, the flue diameter is unsuitable excessive; Back-end ductwork the quantity of heat convection large percentage, after basal area increased, flow velocity was lower, and the heat convection heat transfer coefficient reduces, and steel consumption increases, and therefore is difficult to realize by increasing the flue basal area for big-and-middle-sized converter, electric furnace or other residual heat flues.
The middle-size and small-size residual heat flue of part adopts the method that increases the heat convection face at back-end surfaces to reduce outlet cigarette temperature, but flue gas directly washes away convection heating surface when the cigarette temperature drop is low, cause heating surface wear greatly, the air-introduced machine energy consumption is higher.Not obvious owing to the relatively poor cooling-down effect that causes of high-temperature flue gas convection heat transfer' heat-transfer by convection ability in the actual motion.
The utility model content
The purpose of this utility model provides the high separate heat exchange type flue of a kind of heat exchange efficiency.
The purpose of this utility model realizes with following technical scheme: a kind of separate heat exchange type flue, comprise the flue water-cooling wall, the cooling water inlet of flue water-cooling wall links to each other with the flue entrance header, outlet links to each other with the flue outlet header, it is characterized in that: the enclosed region that described flue water-cooling wall surrounds is divided into plural zone by the dividing plate water-cooling wall, the cooling water inlet of dividing plate water-cooling wall links to each other with the dividing plate influent header, and outlet links to each other with the dividing plate outlet header; The inside that surrounds the closed area of described flue water-cooling wall is provided with the dividing plate guider, and dividing plate water-cooling wall, dividing plate influent header and dividing plate outlet header are fixed in the flue by the dividing plate guider.
Enclosing the radiant heat transfer flue section that forms by the flue water-cooling wall is circular, square or other polygons.
Described dividing plate water-cooling wall is divided into the warehouse of 3,4,5,6 or 8 radiant heat transfers with flue, to increase heat transfer area and heat-transfer capability.
The form of the cooling water pipe on flue or the dividing plate water-cooling wall can be pipe iris type, fin tubular type or solid matter tubular type.
The dividing plate influent header can adopt welding, flange, metal hose, articulation or sleeve pipe mode to link to each other with external pipe with the dividing plate outlet header.
By the dividing plate water-cooling wall is set the whole flue of script is separated into a plurality of bins in the utility model, increased the flue heat exchange area, the heat of the flue gas of process flue is absorbed by flue water-cooling wall and dividing plate water-cooling wall two parts, because the layout of dividing plate water-cooling wall is parallel to flue gas flow direction, and the flue of this kind structure can not increase flue resistance.
Description of drawings
Fig. 1 structural representation of the present utility model;
Fig. 2 is the top view of Fig. 1.
Among the figure, part 1 is the flue water-cooling wall, and part 2 is the flue entrance header, and part 3 is the flue outlet header, and part 4 is the dividing plate water-cooling wall, and part 5 is the dividing plate influent header, and part 6 is the dividing plate outlet header, and part 7 is the dividing plate guider.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As depicted in figs. 1 and 2, residual heat flue is to enclose the rounded flue of the section that forms by flue water-cooling wall 1, and many group dividing plate water-cooling walls 4 are set in the flue, and whole flue is separated into a plurality of warehouses by dividing plate water-cooling wall 4.Flue water-cooling wall one end links to each other with flue entrance header 2, and the other end links to each other with flue outlet header 3; Dividing plate water-cooling wall 4 one ends link to each other with dividing plate influent header 5, and the other end links to each other with dividing plate outlet header 6.Flue residue heat reclaims and is mainly finished by flue water-cooling wall and dividing plate water-cooling wall two parts in this structure.Part cooling water enters each heat pipe of flue water-cooling wall inside by the chimney intake header, receive gas radiation or convection heat transfer' heat-transfer by convection by the heat pipe outer wall, the cooling water behind the absorbing heat is sent to drum or hot water utilization system after compiling by the flue outlet header.Another part cooling water enters each heat pipe in the dividing plate water-cooling wall by the dividing plate inlet header, receive gas radiation or convection heat transfer' heat-transfer by convection in the bin of dividing plate both sides by the heat pipe outer wall, the cooling water behind the absorbing heat is sent to drum or hot water utilization system after compiling by the dividing plate outlet header.Dividing plate water-cooling wall 4, dividing plate influent header 5 and dividing plate outlet header 6 are fixed in the flue by the vertical clapboard guider 7 that is arranged on the flue center.
The utility model is suitable for newly-built converter, electric furnace or ferro-alloy furnace waste heat reclaiming flue occasion, also be applicable to do not changing existing factory building layout and Blower for sucking or supplying ability, to existing converter, electric furnace or ferro-alloy furnace flue gas waste heat recovery flue duct retrofit, to reduce the occasion of exhaust gas temperature, increase heat recovery ability.
Claims (3)
1. separate heat exchange type flue, comprise the flue water-cooling wall, the cooling water inlet of flue water-cooling wall links to each other with the flue entrance header, outlet links to each other with the flue outlet header, it is characterized in that: the enclosed region that described flue water-cooling wall surrounds is divided into plural zone by the dividing plate water-cooling wall, the cooling water inlet of dividing plate water-cooling wall links to each other with the dividing plate influent header, and outlet links to each other with the dividing plate outlet header; The inside that surrounds the closed area of described flue water-cooling wall is provided with the dividing plate guider, and dividing plate water-cooling wall, dividing plate influent header and dividing plate outlet header are fixed in the flue by the dividing plate guider.
2. separate heat exchange type flue as claimed in claim 1, it is characterized in that: it is circular or square enclosing the radiant heat transfer flue section that forms by the flue water-cooling wall.
3. separate heat exchange type flue as claimed in claim 1 or 2, it is characterized in that: the arrangement mode of described flue water-cooling wall and/or dividing plate water-cooling wall internal cooling pipeline is pipe iris type, fin tubular type or solid matter tubular type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203262214U CN202709153U (en) | 2012-07-06 | 2012-07-06 | Separated cabin heat transfer type flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203262214U CN202709153U (en) | 2012-07-06 | 2012-07-06 | Separated cabin heat transfer type flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709153U true CN202709153U (en) | 2013-01-30 |
Family
ID=47589450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203262214U Expired - Lifetime CN202709153U (en) | 2012-07-06 | 2012-07-06 | Separated cabin heat transfer type flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705848A (en) * | 2012-07-06 | 2012-10-03 | 中冶赛迪工程技术股份有限公司 | Branch warehouse heat exchange type chimney flue |
-
2012
- 2012-07-06 CN CN2012203262214U patent/CN202709153U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705848A (en) * | 2012-07-06 | 2012-10-03 | 中冶赛迪工程技术股份有限公司 | Branch warehouse heat exchange type chimney flue |
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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: 20130130 |