CN216295701U - Desulfurization gas gathering ring with splicing structure - Google Patents
Desulfurization gas gathering ring with splicing structure Download PDFInfo
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- CN216295701U CN216295701U CN202122364902.1U CN202122364902U CN216295701U CN 216295701 U CN216295701 U CN 216295701U CN 202122364902 U CN202122364902 U CN 202122364902U CN 216295701 U CN216295701 U CN 216295701U
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Abstract
The utility model provides a desulfurization gas gathering ring with a splicing structure, which comprises a plurality of gas gathering ring blades, a plurality of supporting brackets and a plurality of connecting pieces, wherein the plurality of supporting brackets are circumferentially welded on the wall of an absorption tower; a plurality of gas ring blades are spliced through a plurality of supporting brackets, the spliced gas ring blades form a complete ring along the circumferential direction of the absorption tower, and two adjacent gas ring blades are arranged at intervals. The utility model can effectively avoid the problem that the wall of the absorption tower is easy to corrode due to the cavity generated by the gas gathering ring of the absorption tower with the conventional structure, and meanwhile, the gas gathering ring is installed in the absorption tower in a splicing mode, so that the welding workload is small, the gas gathering ring can be locally disassembled, assembled and replaced, and the convenience of maintenance is improved.
Description
Technical Field
The utility model relates to the technical field of wet desulphurization absorption tower environmental protection, in particular to a desulphurization gas gathering ring with a splicing structure.
Background
The wet desulphurization technology is used as the main technology of flue gas desulphurization of coal-fired power plants, and accounts for more than 85 percent of the wet desulphurization devices established in China. In recent years, in order to meet new environmental protection policies in various regions, most coal-fired power plants have been modified to achieve ultra-low emission, wherein the emission concentration of sulfur dioxide is required to be not more than 35 mg per cubic meter. In order to realize the high-efficiency sulfur dioxide removal efficiency, methods such as increasing slurry spraying in the absorption tower, additionally arranging a flue gas turbulence device in the tower and the like are mainly adopted. However, in order to prevent the spraying slurry from scouring the wall of the absorption tower, the actual arrangement of the spraying layer and the nozzles in the absorption tower cannot be too close to the wall of the absorption tower, so that the desulfurization efficiency is influenced by inevitable adherence escape of the flue gas entering the absorption tower. Therefore, in the ultra-low emission transformation process, most power plants adopt the gas gathering ring device to improve the desulfurization efficiency.
In order to prevent the flue gas from escaping from the wall of the absorption tower along the wall, a gas gathering ring is arranged in the absorption tower under the normal condition, and the device generally adopts a mode that blades of the gas gathering ring made of alloy or carbon steel are welded and fixed with the wall of the absorption tower along the circumferential direction. However, in order to ensure the corrosion-resistant construction of the circumferential connection between the wall of the absorption tower and the gas gathering ring, the gas gathering ring generally adopts a structural form that the upper and lower blades and the wall of the absorption tower are welded at the same time and then overlapped to form a middle cavity. On one hand, the form is to ensure that the corrosion prevention construction of the absorption tower wall plate inevitably forms a cavity structure inside the gas gathering ring, the structure has high requirement on the circumferential welding quality of the gas gathering ring and the absorption tower wall, because the inside of the cavity can not be protected against corrosion, once smoke leaks into the place which is not fully welded, the absorption tower wall is corroded, meanwhile, the lap joint part of the upper surface and the lower surface of the gas gathering ring extends into the absorption tower, the position is easily abraded and perforated by spraying slurry in the tower, and once the slurry penetrates into the perforated position, the corrosion of the absorption tower wall can also be caused; on the other hand, the gas gathering ring is welded into a whole in the circumferential direction of the absorption tower, the welding workload is large, and once the gas gathering ring body goes wrong, the gas gathering ring is not easy to disassemble, repair and maintain. The prior art gas trap ring structure is shown in fig. 1-4.
SUMMERY OF THE UTILITY MODEL
According to the technical problem provided by the utility model, the desulfurization gas gathering ring with the splicing structure is provided. According to the utility model, the working steel is welded on the circumferential direction of the wall of the absorption tower to serve as the support bracket, and then the working steel is welded on the support bracket through the connecting piece, and the partitioned gas gathering ring blades are fixed on the support bracket, so that the problem that the wall of the absorption tower is easy to corrode due to a cavity generated by a gas gathering ring of the absorption tower with a conventional structure is effectively avoided, meanwhile, the gas gathering ring is installed in the absorption tower in a splicing mode, the welding workload is small, the gas gathering ring can be locally disassembled and replaced, and the convenience of maintenance is improved. The technical means adopted by the utility model are as follows:
the utility model provides a mosaic structure's desulfurization gathers gaseous ring, installs in the absorption tower wall, includes: the gas gathering ring comprises a plurality of gas gathering ring blades, a plurality of supporting brackets and a plurality of connecting pieces, wherein the plurality of supporting brackets are welded on the wall of the absorption tower in the circumferential direction; a plurality of gas ring blades are spliced through a plurality of supporting brackets, the spliced gas ring blades form a complete ring along the circumferential direction of the absorption tower, and two adjacent gas ring blades are arranged at intervals.
Further, a butyl rubber gasket is arranged between the spliced air gathering ring blades and the wall of the absorption tower during installation to serve as a cushion layer.
Further, the air gathering ring blades are arranged into 6-12 pieces according to the diameter of the absorption tower.
Further, the support bracket is of an I-shaped steel structure.
Furthermore, the material of the polish rod bolt and the polish rod nut adopts 1.4529 material.
Further, after the support bracket and the polished rod bolt are welded, the support bracket and the wall of the absorption tower are integrally subjected to corrosion prevention construction.
Compared with the prior art, the utility model has the following advantages:
according to the desulfurization gas gathering ring with the splicing structure, the I-steel is welded on the wall of the absorption tower in the circumferential direction to serve as the supporting bracket, and then the I-steel is welded on the supporting bracket through the connecting piece, and the partitioned gas gathering ring blades are fixed on the supporting bracket, so that the formation of a mounting cavity of a conventional gas gathering ring is avoided, and the problem of corrosion of the wall of the absorption tower caused by the mounting of the gas gathering ring is avoided; meanwhile, the blocked gas gathering ring blade blocks are installed in the tower through bolt connection and can form a whole along the circumferential direction of the absorption tower, and when a large amount of welding work is avoided, local blades can be disassembled for overhauling and maintenance.
Based on the reason, the utility model can be widely popularized in the fields of environmental protection devices related to wet desulphurization absorption towers and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a plan view of a conventional 23.93m layer gas gathering ring.
Fig. 2 is a vertical layout view of the conventional gas trap ring shown in fig. 1.
Fig. 3 is a plan view of a conventional 27.93m layer gas gathering ring.
Fig. 4 is a vertical layout view of the conventional gas trap ring shown in fig. 3.
FIG. 5 is a plan view of a desulfurization gas-gathering ring of the splicing structure of the present invention.
FIG. 6 is a vertical layout view of the desulfurization gas-gathering ring of the splicing structure of the present invention.
In the figure: 1. an absorption column wall; 2. a gas gathering ring blade; 3. supporting the bracket; 4. a connecting member; 5. butyl rubber gasket.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
As shown in the figure, the utility model provides a desulfurization gas-gathering ring with a splicing structure, which is arranged on the wall 1 of an absorption tower and comprises: the gas gathering ring comprises a plurality of gas gathering ring blades 2, a plurality of supporting brackets 3 and a plurality of connecting pieces 4, wherein the plurality of supporting brackets 3 are circumferentially welded on the wall 1 of the absorption tower, each gas gathering ring blade 2 is fixed on the supporting bracket 3 through the plurality of connecting pieces 4, each connecting piece 4 consists of a polished rod bolt and a nut in threaded connection with the polished rod bolt, the polished rod bolt is welded on the supporting bracket 3, and the gas gathering ring blades 2 are fixed on the supporting brackets 3 through the nuts; splice a plurality of gas ring blades 2 of gathering through a plurality of support brackets 3, gather gas ring blades 2 after the concatenation and form complete annular along absorption tower circumference, gather for the interval setting (there is the clearance between two adjacent gas ring blades 2) between two adjacent gas ring blades 2.
In a preferred embodiment, a butyl rubber gasket 5 is arranged between the spliced air gathering ring blade 2 and the absorption tower wall 1 as a cushion layer during installation.
In a preferred embodiment, the air gathering ring blades 2 are arranged to be 6-12 pieces according to the diameter of the absorption tower.
In a preferred embodiment, the support bracket 3 is an i-steel structure.
In a preferred embodiment, the material of the polish rod bolt and the polish rod nut is 1.4529.
In a preferred embodiment, after the support bracket 3 and the polished rod bolt are welded, the support bracket 3 and the absorption tower wall 1 are integrally subjected to corrosion prevention construction.
Example 1
As shown in fig. 5 and 6, a desulfurization gas gathering ring with a splicing structure belongs to the field of environment-friendly devices related to wet desulfurization absorption towers, is installed on a wall 1 of the absorption tower, and comprises gas gathering ring blades 2, support brackets 3, connecting pieces 4 and butyl rubber gaskets 5. Wherein, the air gathering ring blade 2 can be divided into 6-12 pieces according to the diameter of the absorption tower. The support brackets are made of I-shaped steel, are arranged along the circumferential direction of the absorption tower and are welded on the wall of the absorption tower; the connecting piece adopts a polished rod bolt and nut assembly made of 1.4529 materials, and the polished rod bolt is welded on the bracket; carrying out anticorrosion construction on the supporting bracket, the connecting piece and the absorption tower wall integrally; after the anticorrosion construction is finished, the gas gathering ring blade is fixed on the support bracket through the connecting piece, and a butyl rubber gasket is arranged at the joint of the end part of the gas gathering ring and the wall of the absorption tower. As shown in fig. 6, each air gathering ring blade 2 is fixed to a support bracket 3 by 3 connectors 4.
The specific working process of the utility model is as follows:
referring to fig. 1, a support bracket 3 is circumferentially welded on an absorption tower wall 1, a polish rod bolt in a connecting piece 4 is welded on the bracket, and after the support bracket 3 and the polish rod bolt in the connecting piece 4 are welded, the support bracket 3 and the absorption tower wall 1 are integrally subjected to corrosion prevention construction. After the anticorrosion construction is finished, the spliced gas gathering ring blades 2 (which can be divided into 6-12 pieces according to the diameter of the absorption tower) are fixed on the support bracket 3 through nuts in the connecting pieces 4, and the gas gathering ring blades 2 form a complete ring in the circumferential direction. Meanwhile, in order to ensure that the spliced gas gathering ring blades 2 are in good contact with the wall 1 of the absorption tower and avoid damaging an anticorrosive coating of the wall 1 of the absorption tower, a butyl rubber gasket 5 is additionally arranged between the spliced gas gathering ring blades 2 and the wall 1 of the absorption tower during installation to serve as a cushion layer.
The support brackets 3 welded on the wall 1 of the absorption tower in the circumferential direction can effectively fix the spliced gas gathering ring blades 2 along the circumferential direction of the absorption tower, the structure ensures the use effect of the gas gathering ring, and simultaneously avoids the formation of a cavity structure when the conventional gas gathering ring is installed, the cavity is usually the main camp generated by corrosion of the position of the wall of the absorption tower, so the corrosion of the wall of the absorption tower can be avoided; gather the structure that the gaseous ring blade adopted the concatenation simultaneously, concatenation department arranges in support bracket department can not weld for all be mutually independent structure between the blade, be favorable to gathering the maintenance of gaseous ring body and avoided a large amount of weldment work in the tower.
According to the spliced desulfurization gas gathering ring, the I-steel is welded on the wall of the absorption tower in the circumferential direction to serve as the support bracket, and then the I-steel is welded on the support bracket through the connecting piece, and the partitioned gas gathering ring blades are fixed on the support bracket, so that the formation of a mounting cavity of a conventional gas gathering ring is avoided, and the corrosion problem of the wall of the absorption tower caused by the mounting of the gas gathering ring is avoided; meanwhile, the blocked gas gathering ring blade blocks are installed in the tower through bolt connection and can form a whole along the circumferential direction of the absorption tower, and when a large amount of welding work is avoided, local blades can be disassembled for overhauling and maintenance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a mosaic structure's desulfurization gathers gaseous ring, its characterized in that installs in absorption tower wall (1), includes: the gas gathering ring comprises a plurality of gas gathering ring blades (2), a plurality of supporting brackets (3) and a plurality of connecting pieces (4), wherein the plurality of supporting brackets (3) are welded on the wall (1) of the absorption tower in the circumferential direction, each gas gathering ring blade (2) is fixed on the supporting bracket (3) through the plurality of connecting pieces (4), each connecting piece (4) consists of a polished rod bolt and a nut in threaded connection with the polished rod bolt, the polished rod bolt is welded on the supporting bracket (3), and the gas gathering ring blades (2) are fixed on the supporting brackets (3) through the nuts; splice a plurality of gas ring blades (2) of gathering through a plurality of support brackets (3), gather gas ring blade (2) after the concatenation and form complete annular along absorption tower circumference, gather for the interval setting between two adjacent gas ring blades (2).
2. The desulfurization gas gathering ring with the splicing structure as claimed in claim 1, wherein a butyl rubber gasket (5) is arranged between the spliced gas gathering ring blades (2) and the wall (1) of the absorption tower as a cushion layer.
3. The desulfurization gas gathering ring of the splicing structure of claim 1 or 2, wherein the gas gathering ring blades (2) are arranged in 6-12 pieces according to the size of the diameter of the absorption tower.
4. The desulfurization gas-gathering ring of the splicing structure of claim 1, wherein the support bracket (3) is of an I-shaped steel structure.
5. The desulfurization gas collecting ring of the splicing structure of claim 1, wherein the material of the polish rod bolt and the polish rod nut is 1.4529.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122364902.1U CN216295701U (en) | 2021-09-28 | 2021-09-28 | Desulfurization gas gathering ring with splicing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122364902.1U CN216295701U (en) | 2021-09-28 | 2021-09-28 | Desulfurization gas gathering ring with splicing structure |
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| Publication Number | Publication Date |
|---|---|
| CN216295701U true CN216295701U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122364902.1U Active CN216295701U (en) | 2021-09-28 | 2021-09-28 | Desulfurization gas gathering ring with splicing structure |
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| Country | Link |
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| CN (1) | CN216295701U (en) |
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2021
- 2021-09-28 CN CN202122364902.1U patent/CN216295701U/en active Active
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