CN104676577B - High-efficiency superheater - Google Patents
High-efficiency superheater Download PDFInfo
- Publication number
- CN104676577B CN104676577B CN201510085460.3A CN201510085460A CN104676577B CN 104676577 B CN104676577 B CN 104676577B CN 201510085460 A CN201510085460 A CN 201510085460A CN 104676577 B CN104676577 B CN 104676577B
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- China
- Prior art keywords
- heating chamber
- superheater
- exhaust gases
- gases passes
- heating
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Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 109
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003546 flue gas Substances 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 48
- 239000000779 smoke Substances 0.000 claims description 10
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a high-efficiency superheater which is arranged in a superheating flue and comprises a first-stage heating flue and a second-stage heating flue sleeving outside the first-stage heating flue, wherein the first-stage heating flue comprises a flue gas channel A; heat exchange fins A are arranged in the flue gas channel A; an annular heating chamber A is formed in the outer wall of the flue gas channel A; the second-stage heating channel comprises an annular heating chamber B; an annular flue gas channel B is arranged between the inner wall of the annular heating chamber B and the outer wall of the annular heating chamber A; the annular heating chamber B and the annular heating chamber A are communicated through a plurality of connecting pipes; a conical groove is formed in one side, toward the superheating flue, of the superheater; the axis of the conical groove is coaxial with the flue gas channel A; the bottom surface edge of the conical groove is positioned in the outer wall surface of the annular heating chamber B. A dividing wall type heat exchanger with an annular structure replaces an original dividing wall type heat exchanger with an array pipeline structure, so the flowing resistance of high-temperature flue gas flowing in the superheater is reduced.
Description
Technical field
The present invention relates to a kind of high efficiency superheater, belong to boiler structure accessory field.
Background technology
In fluidization boiler, superheater is in boiler, the saturated steam under certain pressure to be heated under relevant pressure
Overheated steam a kind of heat transmission equipment.
Superheater can be divided into convection type, radiant type and half radiant type by heat transfer type；Coil can be divided into by construction featuress
Formula, screen formula, wall and bag wall.They are all made up of some pipes in parallel and import and export header.The external diameter of pipe is generally
30～60 millimeters.Convection superheater is the most commonly used, using coiled.It has the pipe group than comparatively dense, is arranged in 450
In the flue of～1000 DEG C of flue-gas temperatures, horizontal and vertical by flue gas washes away.Heat is mainly passed by flue gas by convection
Pass pipe, also some radiant heat absorption.Pendant superheater is made up of multi-disc tube panel, is arranged in burner hearth internal upper part or outlet
Place, belongs to radiation or half radiant superheater.The former absorbs the radiant heat of furnace flame, and the latter also absorbs a part of convection of heat
Amount.In station boiler more than 10 MPas, typically all dual-purpose screen formula and two kinds of superheaters of coiled, to increase caloric receptivity.
Applying the wall superheater on inboard wall of burner hearth is radiant superheater, less employing.Bag wall superheater is used in jumbo electricity
Stand and constitute the wall of furnace roof and convection pass in boiler, outside is coated with adiabator composition light boiler setting.
And above-mentioned superheater wherein cardinal principle is all to transfer heat to pipe by way of convection current to carry out heat exchange, its
Although the disturbance to flue gas is larger, flow resistance is also higher, is difficult to timely carry out discharging after heat exchange by crossing heat smoke, thus leading
Cause the flow rate of air in burner hearth slow, the efficiency of combustion of boiler is affected than larger.
Utility model content
The technical problem to be solved in the present invention is：Overcome superheater flow resistance in prior art higher, strong than larger, cleaning difficulty
The technical problem of degree difference, provides a kind of new cylindrical shape superheater.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of high efficiency superheater, superheater was arranged in heating flue, including one-level heating flow channel and be socketed in one-level
Two grades of heating flow channel outside heating flow channel；
Described one-level heating flow channel includes an exhaust gases passes A, is provided with heat exchange fin A, described in exhaust gases passes A
One annular heating chamber A is provided with the outer wall of exhaust gases passes A, the vapor in described heating chamber A is in the biography of heat exchange fin A
Heated under heat；
Described two grades of heating flow channel include annular heating chamber B, and the inwall of described heating chamber B is outer with heating chamber A
It is provided with the exhaust gases passes B of annular between wall, connected by some connecting tubes between described heating chamber B and heating chamber A；
Superheater is provided with groove, the axis of described groove and the flue gas of a taper towards crossing heating flue smoke inlet side
Passage A is coaxial, and the bottom edge of conical socket is located in the outside wall surface of heating chamber B；
The exradius of described exhaust gases passes A is X, and the exradius of heating chamber A is Y, wherein 2X≤Y≤3X；
The exradius of described exhaust gases passes B is Z, wherein Z-Y≤X；
The exradius of described heating chamber B is W, wherein 2（W-Z）≤Y-X.
As the innovation further of the present invention, it is provided with some supporting members, described supporting member in described heating chamber A
It is fixed between the outer wall of heating chamber A and inwall.
As the innovation further of the present invention, described supporting member includes supporting rod member, and described support rod member is in a zigzag
It is arranged in inside heating chamber A.
As the innovation further of the present invention, the section of described connecting tube is water-drop-shaped, the axis of described water-drop-shaped and cigarette
The diameter parallel of gas passage A, the tip of described water-drop-shaped is towards the smoke inlet crossing heating flue.
As the innovation further of the present invention, it is provided with some heat exchange fin B, described heat exchange fin B in exhaust gases passes B
It is fixed between the outer wall of heating chamber A and the inwall of heating chamber B.
As the innovation further of the present invention, described heat exchange fin B includes some exhaust gases passes B axle wire loop arrays relatively
The diameter parallel of the conducting strip of setting, the plane of described conducting strip and exhaust gases passes B, the plane of described conducting strip and heating chamber A
Annular outer wall face between the angle of osculation be less than 90 °.
As the innovation further of the present invention, described heat exchange fin A is spiral type, the axis of screw of described heat exchange fin A
Axis coaxle with exhaust gases passes A.
As the innovation further of the present invention, in described heating chamber B, it is provided with some support components, described support component bag
Include some support wireropes being fixed on heating chamber B annular both sides internal face, described support wirerope is in mesh arrangement.
The invention has the beneficial effects as follows：
1st, the present invention replaces the dividing wall type of original array pipeline configuration by the dividing wall type heat exchanger of a loop configuration
Heat exchanger, reduces the flow resistance that high-temperature flue gas flow in superheater；
Compared to traditional heat pipe, structure more optimizes the socket pipeline configuration of present invention annular, and globality is more preferable simultaneously,
Intensity is higher, flue gas flow rate higher and long-time use in the state of, heat pipe is easier to rock and breakage occurs；
And the present invention is compared to the superheater of traditional array tubular type, clear up also more convenient, can be directly to inwall
Polished and be not easy structural strength is impacted；
The present invention has been also carried out optimizing to the size of exhaust gases passes A, exhaust gases passes B, heating chamber A, heating chamber B, in being located at
Between exhaust gases passes A because flue gas flow rate ratio larger, in order to ensure good heat exchange efficiency, whole flue diameter is also larger, position
In edge exhaust gases passes B because edge flue-gas temperature is relatively low, flow velocity is relatively low, if using excessive heat exchange structure,
Cost performance also can ratio relatively low, the manufacturing cost of whole superheater can be raised, so being located at the exhaust gases passes B at edge and heating chamber B
It is mainly used in being incubated and ensure the well excessive of high-temperature steam；
The smoke inlet of taper to enter plume road more smooth, effectively reduce flow resistance, improve heat exchange area, prevent
Flue gas is detained at the smoke inlet of superheater, affects heat exchange efficiency.
2nd, the steam of heating chamber A is subject to the heating of flue gas in exhaust gases passes A to be rapidly heated, the supporting member in heating chamber A
Steam can be prevented to be rapidly heated the micro-strain of heating chamber A wall expanding and leading to, prevent heating chamber A wall because repeatedly
The metal fatigue deforming and producing, improves safety, and supporting member can also improve the heat exchange of heating chamber A to a certain extent simultaneously
Area, improves heat exchange efficiency.
3rd, more preferably, consumptive material is also less, can effectively reduce the weight of structure for the support wirerope intensity of triangle setting.
4th, the connecting tube of water-drop-shaped has the advantages such as flow resistance is low, heat exchange area is big, can improve the heat exchange of equipment further
Efficiency.
5th, the heat exchange fin in exhaust gases passes B, not only can adjust the gas flow in exhaust gases passes B, improve it in cigarette
Length of flow in gas passage B, can also increase exhaust gases passes B and heat exchange efficiency simultaneously, improve heat exchange area.
6th, the heat exchange fin in exhaust gases passes B is obliquely installed, and compared to the structure arranging perpendicular to tangent line, has bigger
Heat exchange area, improves the heat exchange efficiency of equipment further.
7th, spiral heat exchange fin structure, while ensureing larger heat exchange area, has less flow resistance,
And the heat exchanger plates structure compared to arrangement in upright arrangement, there is more preferable intensity.
8th, netted supporting construction makes just smaller heating chamber B of heat exchange area itself obtain preferable heat transfer effect,
Prevent high-temperature steam from lowering the temperature in heating chamber B further.
Brief description
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the horizontal section schematic diagram of the present invention；
Fig. 2 is the longitudinal profile schematic diagram of the present invention.
In figure includes：Exhaust gases passes A1, heat exchange fin A2, heating chamber A3, support rod member 4, exhaust gases passes B5, connecting tube 6,
Heat exchange fin B7, heating chamber B8, support wirerope 9.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only with
Illustration illustrates the basic structure of the present invention, and therefore it only shows the composition relevant with the present invention.
As shown in Figure 1 and 2, the present invention is a kind of high efficiency superheater, and superheater was arranged in heating flue, including one-level
Heating flow channel and two grades of heating flow channel being socketed in outside one-level heating flow channel；
Described one-level heating flow channel includes an exhaust gases passes A1, is provided with heat exchange fin A2, institute in exhaust gases passes A1
Stating heat exchange fin A2 is spiral type, the axis of screw of described heat exchange fin A2 and the axis coaxle of exhaust gases passes A1, in described cigarette
One annular heating chamber A3 is provided with the outer wall of gas passage A1, the vapor in described heating chamber A3 is heat exchange fin A2's
Heated under heat transfer, be provided with some support rod members 4, the described word supporting rod member 4 to be in heating chamber A3 of described annular
Shape is arranged in inside heating chamber A3 of annular, between the outer wall and inwall of ring-shaped heating cavity A3；
Described two grades of heating flow channel include annular heating chamber B8, and the inwall of described ring-shaped heating cavity B8 is added with annular
It is provided with ring smoke passage B5 between the outer wall of hot chamber A3；
It is provided with some heat exchange fin B7 in exhaust gases passes B5, described heat exchange fin B7 includes some exhaust gases passes relatively
The conducting strip of B5 axis annular array setting, the diameter parallel of the plane of described conducting strip and exhaust gases passes B5, described conducting strip
Plane and the annular outer wall face of heating chamber A3 between the angle of osculation be less than 90 °, described heat exchange fin B7 is fixed on heating chamber A3
Outer wall and the inwall of heating chamber B8 between；
It is additionally provided with some support components, described support component includes some being fixed on heating chamber B8 in described heating chamber B8
The support wirerope 9 of annular both sides internal face, described support wirerope 9 is in mesh arrangement；
Connected by some connecting tubes 6 between heating chamber B8 of described annular and heating chamber A3, the section of described connecting tube 6
For water-drop-shaped, the diameter parallel of the axis of described water-drop-shaped and exhaust gases passes A1, the tip direction of described water-drop-shaped crosses heating flue
Smoke inlet；
Superheater is provided with the groove of a taper towards crossing heating flue smoke inlet side, the axis of described conical socket with
Exhaust gases passes A1 is coaxial, and the bottom edge of conical socket is located in the outside wall surface of ring-shaped heating cavity B8；
The exradius of described exhaust gases passes A1 is X, and the exradius of ring-shaped heating cavity A3 is Y, wherein 2X≤Y≤3X；
The exradius of described exhaust gases passes B5 is Z, wherein Z-Y≤X；
The exradius of heating chamber B8 of described annular is W, wherein 2（W-Z）≤Y-X.
During use, the exhaustor of drum is connected to heating chamber A3, vapor in heating chamber A3, in center flue gas
Under the heating of passage A1, it is rapidly heated, volume expands towards surrounding, thus being entered in heating chamber B8 by connecting tube 6, is located at
The flue-gas temperature at edge compares relatively low, by exhaust gases passes B5, the superheated steam from heating chamber A3 can be carried out further
Heating so that the superheated steam in heating chamber B8 expands further, the superheated steam in finally heated chamber B8 enters into steamer
In machine, carry out expanding and do manual work.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely various change and modification can be carried out in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description it is necessary to determine its technical scope according to right.
Claims (6)
1. a kind of high efficiency superheater, superheater was arranged in heating flue, it is characterized in that：Including one-level heating flow channel and socket
Two grades of heating flow channel outside in one-level heating flow channel；
Described one-level heating flow channel includes an exhaust gases passes A, is provided with heat exchange fin A in exhaust gases passes A, in described flue gas
One annular heating chamber A is provided with the outer wall of passage A, the vapor in described heating chamber A is under the heat transfer of heat exchange fin A
Heated；
Described two grades of heating flow channel include annular heating chamber B, the inwall of described heating chamber B and the outer wall of heating chamber A it
Between be provided with annular exhaust gases passes B, connected by some connecting tubes between described heating chamber B and heating chamber A；
Superheater is provided with groove, the axis of described groove and the exhaust gases passes of a taper towards crossing heating flue smoke inlet side
A is coaxial, and the bottom edge of conical socket is located in the outside wall surface of heating chamber B；
The exradius of described exhaust gases passes A is X, and the exradius of heating chamber A is Y, wherein 2X≤Y≤3X；
The exradius of described exhaust gases passes B is Z, wherein Z-Y≤X；
The exradius of described heating chamber B is W, wherein 2（W-Z）≤Y-X；
Described heat exchange fin A is spiral type, the axis of screw of described heat exchange fin A and the axis coaxle of exhaust gases passes A；
Be provided with some support components in described heating chamber B, described support component include some be fixed on heating chamber B annular both sides
The support wirerope of internal face, described support wirerope is in mesh arrangement.
2. a kind of high efficiency superheater as claimed in claim 1, is characterized in that：If being provided with the Heavenly Stems and Earthly Branches in described heating chamber A
Support component, described supporting member is fixed between the outer wall of heating chamber A and inwall.
3. a kind of high efficiency superheater as claimed in claim 2, is characterized in that：Described supporting member includes supporting rod member, institute
Stating support rod member is in be arranged in inside heating chamber A in a zigzag.
4. a kind of high efficiency superheater as claimed in claim 1, is characterized in that：The section of described connecting tube is water-drop-shaped, institute
State the axis of water-drop-shaped and the diameter parallel of exhaust gases passes A, the tip of described water-drop-shaped is towards the smoke inlet crossing heating flue.
5. a kind of high efficiency superheater as claimed in claim 1, is characterized in that：It is provided with some heat exchange in exhaust gases passes B
Fin B, described heat exchange fin B is fixed between the outer wall of heating chamber A and the inwall of heating chamber B.
6. a kind of high efficiency superheater as claimed in claim 5, is characterized in that：Described heat exchange fin B includes some cigarettes relatively
The conducting strip of gas passage B axle wire loop array setting, the diameter parallel of the plane of described conducting strip and exhaust gases passes B, described lead
The angle of osculation between the annular outer wall face of the plane of backing and heating chamber A is less than 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510085460.3A CN104676577B (en) | 2015-02-17 | 2015-02-17 | High-efficiency superheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510085460.3A CN104676577B (en) | 2015-02-17 | 2015-02-17 | High-efficiency superheater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104676577A CN104676577A (en) | 2015-06-03 |
| CN104676577B true CN104676577B (en) | 2017-02-08 |
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ID=53311974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510085460.3A Expired - Fee Related CN104676577B (en) | 2015-02-17 | 2015-02-17 | High-efficiency superheater |
Country Status (1)
| Country | Link |
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| CN (1) | CN104676577B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2829184A1 (en) * | 1978-07-03 | 1980-01-17 | Rudolf Dr Wieser | Superheater with double walled tubes - has steam flowing through annular space and flue gas passing inside and outside |
| JP4315947B2 (en) * | 2005-11-10 | 2009-08-19 | 株式会社タナカアンドカンパニーリミテッド | Needle clasp in needle punch machine |
| CN201351912Y (en) * | 2009-02-17 | 2009-11-25 | 盐城市锅炉制造有限公司 | Steam superheater |
| CN201611090U (en) * | 2009-12-28 | 2010-10-20 | 抚顺石油机械有限责任公司 | Waste-heat boiler superheater |
| JP5470656B2 (en) * | 2010-03-16 | 2014-04-16 | 株式会社マスダック | Superheated steam generation nozzle |
| CN204513352U (en) * | 2015-02-17 | 2015-07-29 | 无锡昊瑜节能环保设备有限公司 | A kind of high efficiency superheater |
-
2015
- 2015-02-17 CN CN201510085460.3A patent/CN104676577B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104676577A (en) | 2015-06-03 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Hongbing Inventor after: Guo Shu Inventor after: Zhu Yuqin Inventor before: Hu Xiaorong Inventor before: Yu Juan Inventor before: Hu Yu |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161027 Address after: 224042, Dagang Town in Jiangsu province Yancheng City salt District Road Applicant after: JIANGSU YUANHUA LIGHT CHEMICAL EQUIPMENT Co.,Ltd. Address before: 214181 Huishan, Jiangsu province Weir Road, No. 17, No. Applicant before: WUXI HAOYU ENERGY SAVING ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
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Effective date of registration: 20190808 Address after: 510640 Room 2615, 4 Xintang Street, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Li Chao Address before: 224042, Dagang Town in Jiangsu province Yancheng City salt District Road Patentee before: JIANGSU YUANHUA LIGHT CHEMICAL EQUIPMENT Co.,Ltd. |
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Effective date of registration: 20191108 Address after: No. 99, Changli Road, Wuzhong District, Suzhou, Jiangsu 215100 Patentee after: SUZHOU CITY WUZHONG TECHNOLOGY INNOVATION PARK MANAGEMENT CO.,LTD. Address before: 510640 Room 2615, 4 Xintang Street, Tianhe District, Guangzhou City, Guangdong Province Patentee before: Li Chao |
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Effective date of registration: 20230105 Address after: Room 610, Building 3, Science and Technology Mansion, Linyi Hi tech Industrial Development Zone, Shandong Province, 276000 Patentee after: Linyi Enke Development and Construction Co.,Ltd. Address before: 215100 99 Changli Road, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU CITY WUZHONG TECHNOLOGY INNOVATION PARK MANAGEMENT CO.,LTD. |
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