CN215723294U - GGH support is reformed transform into flue support - Google Patents
GGH support is reformed transform into flue support Download PDFInfo
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- CN215723294U CN215723294U CN202122006611.5U CN202122006611U CN215723294U CN 215723294 U CN215723294 U CN 215723294U CN 202122006611 U CN202122006611 U CN 202122006611U CN 215723294 U CN215723294 U CN 215723294U
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Abstract
The utility model discloses a modified GGH support into a flue support, wherein a second GGH support top beam, a middle reinforcing layer beam, a flue, a support, a flue support supporting layer beam and a first GGH support middle layer beam are sequentially arranged between two support side columns from top to bottom; the flue and the support are positioned between the two side column additional columns, the upper ends of the side column additional columns are connected with the middle reinforcing layer beam, the lower ends of the side column additional columns are connected with the flue support supporting layer beam, and the side column additional columns are connected with the support side columns; the flue support supporting layer beam is connected with the first GGH support middle layer beam; the upper end of center pillar additional column is connected with second GGH support top beam, and the lower extreme of center pillar additional column is connected with middle enhancement layer roof beam, and the connecting stub is fixed in between first GGH support middle floor beam and the flue support supporting layer roof beam, and the stability of this support is higher, realizes the optimization adjustment to flue system resistance.
Description
Technical Field
The utility model belongs to the field of ultralow-emission environment-friendly transformation of a thermal power plant, and relates to a method for transforming a GGH support into a flue support.
Background
Since 2012, many domestic power plants choose to dismantle the original GGH device when carrying out capacity-increasing transformation on the existing limestone-gypsum wet desulphurization system. After the desulfurization system removes the GGH, the resistance of the desulfurization system will be reduced, the power consumption of the system will be reduced, and the workload of equipment maintenance will be reduced.
With the continuous improvement of the environmental protection requirement of China, the environmental protection equipment of the thermal power plant of China is subjected to large-scale ultralow emission reconstruction in recent years. The related transformation brings great increase of flue resistance, the original fan allowance of many power plants is insufficient, and only introduction-increase-in-one transformation and fan expansion transformation can be carried out. However, after the fan is modified, the resistance of the fan is improved, the power consumption of the fan is correspondingly increased, and the plant power consumption of a power plant cannot be reduced.
The power plant is limited in site space, flues for connecting various environmental protection devices after being transformed become deformed, and a flue system is difficult to meet the design requirement of optimal arrangement of a flue gas and pulverized coal pipeline, so that the resistance of the flue gas and pulverized coal pipeline is large, and the full-load operation of a fan cannot be realized, so that the load carrying capacity of a unit is reduced. After the ultra-low emission reconstruction is completed, the load capacity of the unit is insufficient. Therefore, the resistance of the flue needs to be reduced, the loading capacity of the elevator group is increased, the energy conservation of the system can be realized, and considerable economic benefits are generated. In the project, GGH equipment is arranged on a horizontal flue at the outlet of a No. 2 desulfurization absorption tower, an original flue needs to be led out from the horizontal flue of the No. 2 absorption tower, then turns upwards to the same horizontal height of the inlet of the GGH equipment, and then is connected with the GGH, and the flue coming out of the GGH is turned downwards and converged to a flue at the inlet of a chimney. Limited by the original GGH support structure, after the GGH equipment is dismantled in the original plan, the flue gas is communicated with the flue along the original direction and passes through 3 elbows in total. In the past, each specialty of a design unit executes the design specifications and principles of the specialty respectively, and after some thermal power plants remove the original GGH device, the original GGH device is only partially removed due to the limitation of the original GGH support structure, and the resistance of a flue system is not optimized and adjusted, so that the original flue elbow still exists, and the system resistance of the flue elbow still has a great improvement space.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a modified GGH support into a flue support, which has high stability and realizes the optimized adjustment of the resistance of a flue system.
In order to achieve the aim, the improved GGH support comprises a first GGH support middle layer beam, a second GGH support middle layer beam, a first GGH support supporting layer beam, a second GGH support top layer beam, support side columns, a flue, a support, a flue support supporting layer beam, side column additional columns, a middle reinforcing layer beam and a middle column additional column;
a second GGH support top beam, a middle reinforcing layer beam, a flue, a support, a flue support supporting layer beam and a first GGH support middle layer beam are sequentially arranged between the two support side columns from top to bottom;
the flue and the support are positioned between the two side column additional columns, the upper ends of the side column additional columns are connected with the middle reinforcing layer beam, the lower ends of the side column additional columns are connected with the flue support supporting layer beam, and the side column additional columns are connected with the support side columns; the flue support supporting layer beam is connected with the first GGH support middle layer beam; the upper end of center pillar additional column is connected with second GGH support top beam, and the lower extreme of center pillar additional column is connected with middle enhancement layer roof beam, and the connecting stub is fixed in between first GGH support middle floor roof beam and the flue support supporting layer roof beam.
The middle reinforcing layer beam is connected with the side columns of the bracket through a column hoop.
The flue support supporting layer beam is connected with the first GGH support middle layer beam through a short connecting column.
The connecting short columns are connected with the middle layer beam of the first GGH support through beam hoops.
And a stiffening plate is arranged at the connecting position of the middle column additional column and the middle reinforcing layer beam.
The side column additional column is connected with the side column of the bracket through a beam hoop.
The utility model has the following beneficial effects:
the GGH support is modified into a way that when a flue support is operated specifically, a layer where a top beam of a second GGH support is located and an upper platform are dismantled, and meanwhile, a flue, a support and GGH equipment are dismantled. Secondly, demolish the primary structure part that influences flue arrangement such as first GGH support supporting layer roof beam and support center pillar, realize utilizing existing building structure to carry out the feasibility of the transformation of utilizing, energy saving, saving land simultaneously produces the profit, in addition, through the removal of GGH, the reduction of flue length, the effectual vertical and horizontal load that reduces the support and bear ensures that overall structure and basis can satisfy this transformation requirement, has guaranteed the intensity and the stability of structure simultaneously. In addition, the newly-added reinforcing members are all steel structures, high-altitude construction of concrete structures is avoided, construction efficiency is improved, and guarantee is provided for timely completion of the whole engineering.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention.
Wherein, 1 is a first GGH support middle layer beam, 2 is a second GGH support middle layer beam, 3 is a first GGH support supporting layer beam, 4 is a second GGH support top layer beam, 5 is a support side column, 6 is a flue and a support, 7 is a support middle column, 8 is a flue support supporting layer beam, 9 is a side column additional column, 10 is a middle reinforcing layer beam, 11 is a beam hoop, 12 is a column hoop, 13 is a connecting short column, 14 is a middle column additional column, and 15 is a stiffening plate.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the utility model. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1 and 2, the GGH support of the present invention is modified into a flue support, which includes a first GGH support middle beam 1, a second GGH support top beam 4, support side columns 5, a flue and support 6, a flue support layer beam 8, side column additional columns 9, a middle reinforcing layer beam 10, a beam hoop 11, a column hoop 12, a connecting short column 13, an additional column 14 and a reinforcing central column plate 15;
a second GGH support top layer beam 4, a middle reinforcing layer beam 10, a flue and support 6, a flue support supporting layer beam 8 and a first GGH support middle layer beam 1 are sequentially arranged between the two support side columns 5 from top to bottom, the flue and support 6 are positioned between the two side column additional columns 9, the upper ends of the side column additional columns 9 are connected with the middle reinforcing layer beam 10, the lower ends of the side column additional columns 9 are connected with the flue support supporting layer beam 8, and the side column additional columns 9 are connected with the support side columns 5 through beam hoops 11; the flue support supporting layer beam 8 is connected with the first GGH support middle layer beam 1 through a short connecting column 13; the upper end of the middle column additional column 14 is connected with the top beam 4 of the second GGH support, and the lower end of the middle column additional column 14 is connected with the middle reinforcing layer beam 10;
the middle reinforcing layer beam 10 is connected with the bracket side column 5 through a column hoop 12, and the short connecting column 13 is connected with the first GGH bracket middle layer beam 1 through a beam hoop 11; and stiffening plates 15 are arranged at the connecting positions of the middle column additional columns 14 and the middle reinforcing layer beam 10.
And the column system is strengthened by additionally arranging the side column additional column 9.
Through addding middle reinforcing layer roof beam 10, strengthen the processing to whole structure system, the girder steel of middle reinforcing layer roof beam 10 uses former GGH to support the girder steel.
Adopt roof beam staple bolt 11, post staple bolt 12 and side column additional column 9, strengthen the processing to the beam column part, guarantee the intensity and the stability of new construction, provide simultaneously and connect the face for newly-increased steel construction.
And a short connecting column 13 is additionally arranged between the first GGH support middle layer beam 1 and the flue support supporting layer beam 8, so that the flue support supporting layer beam 8 is reinforced, and the two layers of beams work together.
In addition, after the GGH equipment is dismantled, the trend, the arrangement and the elevation of the flue and the support 6 are adjusted.
Through the removal of GGH, the reduction of flue length, vertical and horizontal load that the effectual reduction support bore ensures that overall structure and basis can satisfy this transformation requirement.
The second GGH support top layer roof beam 4 is the girder steel of dismantling, for lifting by crane construction provides convenience, adopts stiffening plate 15 to strengthen the processing to each junction simultaneously.
And a middle column additional column 14 is adopted to connect the middle reinforcing layer beam 10 and the top layer beam 4 of the second GGH support, so that the overall stability is better.
The utility model realizes the feasibility of utilizing the existing building structure to carry out old-recycling transformation, saves energy and land, generates benefit, effectively reduces the vertical and horizontal loads born by the bracket through the removal of the GGH and the reduction of the length of the flue, and ensures that the integral structure and the foundation can meet the transformation requirement. Meanwhile, a local transformation and reinforcement transformation method is adopted, so that the strength and stability of the new structure are ensured. In addition, the newly-added reinforcing members are all steel structures, high-altitude construction of concrete structures is avoided, construction efficiency is improved, and guarantee is provided for timely completion of the whole engineering.
The method is a modification project quantity of 2 600MW units, after the method is adopted, the investment of a structural modification part is about 20 ten thousand yuan, the investment of a flue modification part is about 30 ten thousand yuan, the initial measurement and calculation are carried out, after the modification is finished, the resistance of a smoke and air pipeline of the unit is reduced by 800Pa, and the electricity cost of an induced draft fan per year is saved by about 100 ten thousand yuan. The utility model has the advantages of low investment, high economic benefit and high cost performance. The utility model reduces the investment of manpower, material resources and financial resources of the project, and better meets the requirements of material-saving and energy-saving measures in civilized green construction.
Claims (6)
1. A GGH support is transformed into a flue support, which is characterized by comprising a first GGH support middle beam (1), a second GGH support middle beam (2), a first GGH support supporting layer beam (3), a second GGH support top beam (4), a flue and support (6), a flue support supporting layer beam (8), a middle reinforcing layer beam (10), a middle column additional column (14), two support side columns (5) and two side column additional columns (9);
a second GGH support top layer beam (4), a middle reinforcing layer beam (10), a flue and support (6), a flue support supporting layer beam (8) and a first GGH support middle layer beam (1) are sequentially arranged between the two support side columns (5) from top to bottom;
the flue and the support (6) are positioned between the two side column additional columns (9), the upper ends of the side column additional columns (9) are connected with the middle reinforcing layer beam (10), the lower ends of the side column additional columns (9) are connected with the flue support supporting layer beam (8), and the side column additional columns (9) are connected with the support side columns (5); the flue support supporting layer beam (8) is connected with the first GGH support middle layer beam (1); the upper end of a middle column additional column (14) is connected with a second GGH support top layer beam (4), the lower end of the middle column additional column (14) is connected with a middle reinforcing layer beam (10), and a connecting short column (13) is fixed between a first GGH support middle layer beam (1) and a flue support supporting layer beam (8).
2. The GGH support according to claim 1, being reformed into a flue support, wherein the middle reinforcement beam (10) is connected with the support side columns (5) through column hoops (12).
3. The GGH support according to claim 1, being adapted as a chimney support, wherein the chimney support beams (8) are connected to the first GGH support intermediate beam (1) by means of connecting studs (13).
4. The GGH support according to claim 3, which is adapted as a flue support, wherein the connection studs (13) are connected with the first GGH support intermediate beam (1) by beam hoops (11).
5. The GGH support according to claim 1, which is transformed into a flue support, wherein stiffening plates (15) are arranged at the connecting positions of the middle column additional columns (14) and the middle reinforcing layer beam (10).
6. The GGH support according to claim 1, wherein the side column additional column (9) is connected with the support side column (5) through a beam hoop (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122006611.5U CN215723294U (en) | 2021-08-24 | 2021-08-24 | GGH support is reformed transform into flue support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122006611.5U CN215723294U (en) | 2021-08-24 | 2021-08-24 | GGH support is reformed transform into flue support |
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| Publication Number | Publication Date |
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| CN215723294U true CN215723294U (en) | 2022-02-01 |
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| CN202122006611.5U Active CN215723294U (en) | 2021-08-24 | 2021-08-24 | GGH support is reformed transform into flue support |
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2021
- 2021-08-24 CN CN202122006611.5U patent/CN215723294U/en active Active
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