CN102777885B - For partition wall for ultra-supercritical boiler economizer outlet flue - Google Patents
For partition wall for ultra-supercritical boiler economizer outlet flue Download PDFInfo
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- CN102777885B CN102777885B CN201210228231.9A CN201210228231A CN102777885B CN 102777885 B CN102777885 B CN 102777885B CN 201210228231 A CN201210228231 A CN 201210228231A CN 102777885 B CN102777885 B CN 102777885B
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- entrance header
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- boatswain chair
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Abstract
For partition wall for ultra-supercritical boiler economizer outlet flue.In units' installation process, because unit in charge of construction is subject to the impact of construction environment and construction ability, there is larger potential safety hazard in former dividing wall form operation in the quality uncertainty in the process that dividing wall backplate scene fluting makes and welds.Its composition of this product comprises: with economizer entrance header (2), the back-end ductwork entrance header (3) of pipe joint (1), described back-end ductwork entrance header connecting cleat (4), described clamping plate connect bending boatswain chair (6) by bolt (5), described bending boatswain chair connection reinforcement floor (7), at described bending boatswain chair and described deep floor two ends, side seal plate (8) is housed, bending boatswain chair described in inserting in bending plate, the economizer entrance header described in the described bending plate other end connects.The present invention is used for ultra-supercritical boiler economizer exit flue.
Description
technical field:
the present invention relates to a kind of for partition wall for ultra-supercritical boiler economizer outlet flue.
background technology:
economizer exit flue dividing wall structure and economizer entrance header upper tube junction contacts, dividing wall backplate and pipe joint is cut when being equipped with in field-mounted process, dredge shape plate fluting uneven, and it is even at this region non-homogeneous expansion of boiler startup initial stage, in boiler operatiopn, dividing wall backplate and pipe joint form smoke corridor, heavy wear pipe joint, this situation, once occur blowing out keeping in repair, causes very large loss to production.
in units' installation process, because unit in charge of construction is subject to the impact of construction environment and construction ability, there is larger potential safety hazard in former dividing wall form operation in the quality uncertainty in the process that dividing wall backplate scene fluting makes and welds.
summary of the invention:
the object of this invention is to provide a kind of can ensure long-term, stable, the safe operation of boiler for partition wall for ultra-supercritical boiler economizer outlet flue.
above-mentioned object is realized by following technical scheme:
a kind of for partition wall for ultra-supercritical boiler economizer outlet flue, its composition comprises: with economizer entrance header, the back-end ductwork entrance header of pipe joint, described back-end ductwork entrance header connecting cleat, described clamping plate are bolted bending boatswain chair, described bending boatswain chair connection reinforcement floor, at described bending boatswain chair and described deep floor two ends, side seal plate is housed, bending boatswain chair described in inserting in bending plate, the economizer entrance header described in the described bending plate other end connects.
described for partition wall for ultra-supercritical boiler economizer outlet flue, the global facility be made up of described bending boatswain chair, described deep floor, described side seal plate, described bending plate distributes uniformly and is connected in described economizer entrance header and described back-end ductwork entrance header and is not in contact with each other mutually with described pipe joint.
described for partition wall for ultra-supercritical boiler economizer outlet flue, described bending boatswain chair comprises vertical short slab part, oblique plate portion and vertical plate part, angle a between described oblique plate portion and described vertical plate part is 90 ~ 168, described bending plate comprises the vertical part of short slab, the oblique part of plate, angle b between described vertical plate part and the oblique part of described plate is 165 °, the oblique part of described plate is 15 ° with the angle c of described economizer entrance header vertical direction, distance h between described back-end ductwork entrance header center and described economizer entrance header center is 800-1000mm, distance f between described pipe joint horizontal segment center and described economizer entrance header center is 365-565mm.
described for partition wall for ultra-supercritical boiler economizer outlet flue, described bending boatswain chair comprises vertical short slab part, oblique plate portion and vertical plate part, angle a between described oblique plate portion and described vertical plate part is 122 °, described bending plate comprises the vertical part of short slab, the oblique part of plate, angle b between described vertical plate part and the oblique part of described plate is 165 °, the oblique part of described plate is 15 ° with the angle c of described economizer entrance header vertical direction, distance h between described back-end ductwork entrance header center and described economizer entrance header center is 900mm, distance f between described pipe joint horizontal segment center and described economizer entrance header center is 465mm.
beneficial effect:
1. the bending boatswain chair of curved shape that the present invention adopts avoids the pipe joint on contact economizer entrance header top, and with bending plate fitted seal, bending boatswain chair and bending plate weld to ensure structural strength with the deep floor be evenly arranged respectively.
2. dividing wall structure both sides of the present invention seal welding side seal plate respectively, the separation completely of reheater flue and superheater flue when ensure that boiler operatiopn, avoid former dividing wall structure and economizer entrance header upper tube junction contacts, on-site cutting dividing wall backplate is uneven, form smoke corridor, the situation of attrition tube joint, and the expansion difference in lower header running can be absorbed.
3. the new structure of economizer exit flue dividing wall of the present invention can avoid economizer entrance header upper tube joint to be subject to sweep of gases, can ensure long-term, stable, the safe operation of boiler.
4. the angle between oblique plate portion of the present invention and vertical plate part is 122 °, and this angle can at utmost avoid partition wall and pipe joint to collide; Farthest decrease installation difficulty.
accompanying drawing illustrates:
accompanying drawing 1 is the structural representation of this product.
accompanying drawing 2 is structural representations with size and angle of accompanying drawing 1.
detailed description of the invention:
embodiment 1:
a kind of for partition wall for ultra-supercritical boiler economizer outlet flue, its composition comprises: with economizer entrance header 2, the back-end ductwork entrance header 3 of pipe joint 1, described back-end ductwork entrance header connecting cleat 4, described clamping plate bolt 5 connects bending boatswain chair 6, described bending boatswain chair connection reinforcement floor 7, at described bending boatswain chair and described deep floor two ends, side seal plate 8 is housed, bending boatswain chair described in inserting in bending plate, the economizer entrance header described in the described bending plate other end connects.
described for partition wall for ultra-supercritical boiler economizer outlet flue, the global facility be made up of described bending boatswain chair, described deep floor, described side seal plate, described bending plate distributes uniformly and is connected in described economizer entrance header and described back-end ductwork entrance header and is not in contact with each other mutually with described pipe joint.
described for partition wall for ultra-supercritical boiler economizer outlet flue, described bending boatswain chair comprises vertical short slab part, oblique plate portion and vertical plate part, angle a between described oblique plate portion and described vertical plate part is 90 ~ 168, described bending plate comprises the vertical part of short slab, the oblique part of plate, angle b between described vertical plate part and the oblique part of described plate is 165 °, the oblique part of described plate is 15 ° with the angle c of described economizer entrance header vertical direction, distance h between described back-end ductwork entrance header center and described economizer entrance header center is 800-1000mm, distance f between described pipe joint horizontal segment center and described economizer entrance header center is 365-565mm.
embodiment 2:
described in embodiment 1 for partition wall for ultra-supercritical boiler economizer outlet flue, its composition comprises: with economizer entrance header, the back-end ductwork entrance header of pipe joint, described back-end ductwork entrance header connecting cleat, described clamping plate bolt connects bending boatswain chair, described bending boatswain chair connection reinforcement floor, at described bending boatswain chair and described deep floor two ends, side seal plate is housed, bending boatswain chair described in inserting in bending plate, the economizer entrance header described in the described bending plate other end connects.
described for partition wall for ultra-supercritical boiler economizer outlet flue, the global facility be made up of described bending boatswain chair, described deep floor, described side seal plate, described bending plate distributes uniformly and is connected in described economizer entrance header and described back-end ductwork entrance header and is not in contact with each other mutually with described pipe joint.
described bending boatswain chair comprises vertical short slab part, oblique plate portion and vertical plate part, angle a between described oblique plate portion and described vertical plate part is 122 °, described bending plate comprises the vertical part of short slab, the oblique part of plate, angle b between described vertical plate part and the oblique part of described plate is 165 °, the oblique part of described plate is 15 ° with the angle c of described economizer entrance header vertical direction, distance h between described back-end ductwork entrance header center and described economizer entrance header center is 900mm, distance f between described pipe joint horizontal segment center and described economizer entrance header center is 465mm.
embodiment 3:
described in embodiment 1 for partition wall for ultra-supercritical boiler economizer outlet flue, its composition comprises: with economizer entrance header, the back-end ductwork entrance header of pipe joint, described back-end ductwork entrance header connecting cleat, described clamping plate bolt connects bending boatswain chair, described bending boatswain chair connection reinforcement floor, at described bending boatswain chair and described deep floor two ends, side seal plate is housed, bending boatswain chair described in inserting in bending plate, the economizer entrance header described in the described bending plate other end connects.
described for partition wall for ultra-supercritical boiler economizer outlet flue, the global facility be made up of described bending boatswain chair, described deep floor, described side seal plate, described bending plate distributes uniformly and is connected in described economizer entrance header and described back-end ductwork entrance header and is not in contact with each other mutually with described pipe joint.
described for partition wall for ultra-supercritical boiler economizer outlet flue, described bending boatswain chair comprises vertical short slab part, oblique plate portion and vertical plate part, angle a between described oblique plate portion and described vertical plate part is 90 °, described bending plate comprises the vertical part of short slab, the oblique part of plate, angle b between described vertical plate part and the oblique part of described plate is 165 °, the oblique part of described plate is 15 ° with the angle c of described economizer entrance header vertical direction, distance h between described back-end ductwork entrance header center and described economizer entrance header center is 800mm, distance f between described pipe joint horizontal segment center and described economizer entrance header center is 365mm.
embodiment 4:
described in embodiment 1 for partition wall for ultra-supercritical boiler economizer outlet flue, its composition comprises: with economizer entrance header, the back-end ductwork entrance header of pipe joint, described back-end ductwork entrance header connecting cleat, described clamping plate bolt connects bending boatswain chair, described bending boatswain chair connection reinforcement floor, at described bending boatswain chair and described deep floor two ends, side seal plate is housed, bending boatswain chair described in inserting in bending plate, the economizer entrance header described in the described bending plate other end connects.
described for partition wall for ultra-supercritical boiler economizer outlet flue, the global facility be made up of described bending boatswain chair, described deep floor, described side seal plate, described bending plate distributes uniformly and is connected in described economizer entrance header and described back-end ductwork entrance header and is not in contact with each other mutually with described pipe joint.
described for partition wall for ultra-supercritical boiler economizer outlet flue, described bending boatswain chair comprises vertical short slab part, oblique plate portion and vertical plate part, angle a between described oblique plate portion and described vertical plate part is 168 °, described bending plate comprises the vertical part of short slab, the oblique part of plate, angle b between described vertical plate part and the oblique part of described plate is 165 °, the oblique part of described plate is 15 ° with the angle c of described economizer entrance header vertical direction, distance h between described back-end ductwork entrance header center and described economizer entrance header center is 1000mm, distance f between described pipe joint horizontal segment center and described economizer entrance header center is 565mm.
embodiment 5:
described in above-described embodiment for partition wall for ultra-supercritical boiler economizer outlet flue, bending boatswain chair, bending plate, two blocks of side seal plates, the deep floor be evenly arranged.
contact economizer entrance header upper tube joint is avoided in the curved shape design of bending boatswain chair, and with bending plate fitted seal, weld to ensure structural strength with the deep floor be evenly arranged respectively with bending boatswain chair and bending plate, dividing wall structure both sides are seal welding side seal plate respectively, the separation completely of reheater flue and superheater flue during guarantee boiler operatiopn, avoid former dividing wall structure and economizer entrance header upper tube junction contacts, on-site cutting dividing wall backplate is uneven, form smoke corridor, the situation of attrition tube joint, and the expansion difference that can absorb in lower header running.
embodiment 6:
described in above-described embodiment for partition wall for ultra-supercritical boiler economizer outlet flue, in 660WM ultra-supercritical boiler, header spacing in top and the bottom is h is 900mm, and the bending boatswain chair vertical section length range be connected with back-end ductwork entrance header is 60mm ~ 280mm.Be of a size of 300 ~ 80 with bending plate mating part straight section, bending boatswain chair bending angle a is 90 ~ 168, recommends angle to be 122, and current Wuhu, Jingjiang engineering are by 122 designs.This angle can at utmost avoid partition wall and pipe joint to collide.At utmost reduce installation difficulty.Bending boatswain chair is connected and fixed by bolt and the clamping plate be welded on bottom back-end ductwork entrance header.Bending plate becomes c to be 15 fixed angles with economizer entrance header vertical center line, does not interfere other angle pipe joint while not colliding vertical direction pipe joint.Bending plate bent upon itself angle is fixed angle b is 165 bending plates and header clip seal welding.
Claims (2)
1. one kind for partition wall for ultra-supercritical boiler economizer outlet flue, its composition comprises: with economizer entrance header, the back-end ductwork entrance header of pipe joint, it is characterized in that: described back-end ductwork entrance header connecting cleat, described clamping plate are bolted bending boatswain chair, described bending boatswain chair connection reinforcement floor, at described bending boatswain chair and described deep floor two ends, side seal plate is housed, bending boatswain chair described in inserting in bending plate, the economizer entrance header described in the described bending plate other end connects;
The global facility be made up of described bending boatswain chair, described deep floor, described side seal plate, described bending plate distributes uniformly to be connected in described economizer entrance header and described back-end ductwork entrance header and also and between described pipe joint has gap;
Described bending boatswain chair comprises vertical short slab part, oblique plate portion and vertical plate part, angle a between described oblique plate portion and described vertical plate part is 90 ~ 168, described bending plate comprises the vertical part of short slab, the oblique part of plate, angle b between described vertical plate part and the oblique part of described plate is 165 °, the oblique part of described plate is 15 ° with the angle c of described economizer entrance header vertical direction, distance h between described back-end ductwork entrance header center and described economizer entrance header center is 800-1000mm, distance f between described pipe joint horizontal segment center and described economizer entrance header center is 365-565mm.
2. according to claim 1 for partition wall for ultra-supercritical boiler economizer outlet flue, it is characterized in that: described bending boatswain chair comprises vertical short slab part, oblique plate portion and vertical plate part, angle a between described oblique plate portion and described vertical plate part is 122 °, described bending plate comprises the vertical part of short slab, the oblique part of plate, angle b between described vertical plate part and the oblique part of described plate is 165 °, the oblique part of described plate is 15 ° with the angle c of described economizer entrance header vertical direction, distance h between described back-end ductwork entrance header center and described economizer entrance header center is 900mm, distance f between described pipe joint horizontal segment center and described economizer entrance header center is 465mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210228231.9A CN102777885B (en) | 2012-07-04 | 2012-07-04 | For partition wall for ultra-supercritical boiler economizer outlet flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210228231.9A CN102777885B (en) | 2012-07-04 | 2012-07-04 | For partition wall for ultra-supercritical boiler economizer outlet flue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102777885A CN102777885A (en) | 2012-11-14 |
| CN102777885B true CN102777885B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210228231.9A Active CN102777885B (en) | 2012-07-04 | 2012-07-04 | For partition wall for ultra-supercritical boiler economizer outlet flue |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715312B (en) * | 2019-10-24 | 2021-10-01 | 哈尔滨锅炉厂有限责任公司 | Hanging sealing device for tail flue of gas boiler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB649762A (en) * | 1946-02-15 | 1951-01-31 | Foster Wheeler Ltd | Improvements relating to water tube steam boilers |
| CN2614327Y (en) * | 2003-01-05 | 2004-05-05 | 史奎元 | Semi-annular form inverse flue boiler |
| CN202647715U (en) * | 2012-07-04 | 2013-01-02 | 哈尔滨锅炉厂有限责任公司 | Compartment wall for outlet flue of ultra supercritical boiler economizer |
-
2012
- 2012-07-04 CN CN201210228231.9A patent/CN102777885B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB649762A (en) * | 1946-02-15 | 1951-01-31 | Foster Wheeler Ltd | Improvements relating to water tube steam boilers |
| CN2614327Y (en) * | 2003-01-05 | 2004-05-05 | 史奎元 | Semi-annular form inverse flue boiler |
| CN202647715U (en) * | 2012-07-04 | 2013-01-02 | 哈尔滨锅炉厂有限责任公司 | Compartment wall for outlet flue of ultra supercritical boiler economizer |
Non-Patent Citations (3)
| Title |
|---|
| 电站锅炉新型耐热钢焊接质量的管理与控制;王建;《锅炉技术》;20091231;第40卷(第02期);全文 * |
| 超超临界锅炉省煤器出口烟道中间隔板结构改进;吕健等;《锅炉制造》;20120229(第1期);第2节以及附图2 * |
| 锅炉炉管泄露的原因分析及防范措施;马克利;《锅炉技术》;20081231;第39卷(第06期);全文 * |
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