CN213790954U - Online quick detach easily clears up type and spouts ammonia device - Google Patents
Online quick detach easily clears up type and spouts ammonia device Download PDFInfo
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- CN213790954U CN213790954U CN202022203562.XU CN202022203562U CN213790954U CN 213790954 U CN213790954 U CN 213790954U CN 202022203562 U CN202022203562 U CN 202022203562U CN 213790954 U CN213790954 U CN 213790954U
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Abstract
The utility model relates to an on-line quick-release easy-cleaning ammonia spraying device, which comprises an ammonia spraying device body, an ammonia gas/ammonia gas equipartition device, a drainage device, an ammonia spraying pipe, a regulating valve, a regulating open-close valve and a quick-release flange; a plurality of ammonia spraying pipes are arranged on the cross section of the ammonia spraying device body in parallel; one end of the ammonia spraying pipe extends out of the ammonia spraying device body; the ammonia gas/ammonia gas distributor is arranged below the ammonia spraying pipe, a plurality of branch pipes are arranged at the top of the ammonia gas/ammonia gas distributor in one-to-one correspondence with the ammonia spraying pipe, adjusting opening and closing valves are arranged on the branch pipes, and the extending sections of the ammonia spraying pipe are connected with the branch pipes through quick-release flanges; the bottom of the ammonia gas/ammonia gas equipartition device is provided with an ammonia gas/ammonia gas inlet which is connected with an ammonia gas/ammonia gas conveying pipeline; and the ammonia gas/ammonia gas conveying pipeline is provided with an adjusting valve and a drainage device. The device can optimize the homogeneity of spouting the ammonia, makes the operation more convenient, is favorable to reducing again and spouts the factor that the ammonia pipe blockked up, and more importantly can realize spouting the online quick detach clearance of ammonia device.
Description
Technical Field
The utility model relates to a SCR method flue gas denitration technical field especially relates to an ammonia device is spouted to easy clearance type of online quick detach.
Background
The Selective Catalytic Reduction (SCR) denitration technology is widely applied to occasions of flue gas denitration of coal-fired power plants, flue gas denitration of coke ovens, flue gas denitration of sintering and the like due to high denitration efficiency and stable and reliable operation. The denitration efficiency, the ammonia injection amount and the ammonia escape rate are important bases for measuring the operation state of the denitration system. Wherein the reliability of the ammonia injection pipe in the operation process of the denitration system directly influences the performance indexes. Therefore, manufacturers and design and use units related to the denitration system at home and abroad carry out deep research and flow field simulation on the ammonia injection pipe and are used for improving the denitration effect of the denitration system. The problem of blockage of the ammonia spraying pipe in the using process is also a difficulty which is concerned by all parties.
The problem of ammonia injection hole blockage to the ammonia injection pipe mainly has two solutions: firstly, the problem of ammonia injection pipe blockage is solved from the source, namely measures such as optimizing the flow field of a denitration device, improving the ammonia injection device and the like are taken, the factors of ammonia injection pipe blockage are reduced, and the blockage period is shortened. And secondly, air stopping, replacing or cleaning, namely, after the denitration device stops air or cools and ventilates, the maintainer enters the bin to detach the ammonia spraying pipe or perform ammonia spraying hole blockage cleaning operation.
From the above, whether the flow field of the denitration device is optimized or the ammonia injection device is improved, the blockage factors are only reduced or reduced as much as possible, and the blockage problem is inevitable. Once the blockage occurs and the air is stopped for replacement or cleaning, the stability and the reliability of the operation of the denitration system are greatly reduced; even some environment-friendly special-emission areas need to be replaced or cleaned by taking measures of stopping machine and reducing production, and great economic loss is brought to enterprises.
In summary, since the blockage problem of the ammonia injection pipe is unavoidable, how to realize the online quick-release cleaning of the ammonia injection device becomes the key of the design of the ammonia injection device.
Disclosure of Invention
The utility model provides an ammonia device is spouted to easy clearance type of online quick detach can optimize the homogeneity of spouting the ammonia, makes the operation more convenient, is favorable to reducing again and spouts the factor that the ammonia pipe blockked up, and more importantly can realize spouting the online quick detach clearance of ammonia device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an online quick-release easy-cleaning ammonia spraying device comprises an ammonia spraying device body, an ammonia gas/ammonia gas equipartition device, a drainage device, an ammonia spraying pipe, an adjusting valve, an adjusting opening and closing valve and a quick-release flange; the ammonia spraying device body is of a tubular structure, and a plurality of ammonia spraying pipes are arranged on the cross section of the ammonia spraying device body in parallel; one end of the ammonia spraying pipe extends out of the ammonia spraying device body; the ammonia gas/ammonia gas distributor is arranged below the ammonia spraying pipe, a plurality of branch pipes are arranged at the top of the ammonia gas/ammonia gas distributor in one-to-one correspondence with the ammonia spraying pipe, adjusting opening and closing valves are arranged on the branch pipes, and the extending sections of the ammonia spraying pipe are connected with the branch pipes through quick-release flanges; the bottom of the ammonia gas/ammonia gas equipartition device is provided with an ammonia gas/ammonia gas inlet which is connected with an ammonia gas/ammonia gas conveying pipeline; and the ammonia gas/ammonia gas conveying pipeline is provided with an adjusting valve and a drainage device.
The ammonia injection device body is used for being installed on a denitration device or a denitration section flue gas pipeline, and the shape and the size of the ammonia injection device body are matched with those of the corresponding denitration device or denitration section flue gas pipeline.
The outer side wall of the ammonia spraying device body close to one end of the ammonia/ammonia vapor equipartition device is provided with a through hole, the outer side of the through hole is provided with a fixed sleeve, and the inner side wall of the ammonia spraying device body far away from one end of the ammonia/ammonia vapor equipartition device is provided with a positioning sleeve; one end of the ammonia spraying pipe penetrates through the through hole and then extends into the ammonia spraying device body, and two ends of the ammonia spraying pipe are respectively supported by a positioning sleeve and a fixing sleeve; and the ammonia spraying pipe is fixedly connected with the fixed sleeve through a quick-release flange.
And one end of the ammonia spraying pipe, which is matched with the positioning sleeve, is in a frustum shape.
The positioning sleeve and the fixing sleeve corresponding to the same ammonia spraying pipe are coaxially installed, and the inner diameters of the positioning sleeve and the fixing sleeve are the outer diameter + (2-5) mm of the ammonia spraying pipe.
A plurality of saddle-type gang pipe supports are uniformly arranged in the ammonia spraying device body along the axial direction of the ammonia spraying pipe and are used for auxiliary support and guiding positioning of the ammonia spraying pipe; two ends of the saddle-type pipe bracket are respectively fixed with the side wall of the ammonia spraying device body, and a plurality of semicircular grooves are formed in the top of the saddle-type pipe bracket and are matched with the ammonia spraying pipes; and a plurality of reinforcing rib plates are respectively arranged on two sides of the saddle-type gang pipe support along the longitudinal direction of the saddle-type gang pipe support.
And the top of the overhanging section of the ammonia spraying pipe is provided with a pressure measuring hole.
The ammonia gas/ammonia gas equipartition device is arranged along the arrangement direction of the ammonia spraying pipes, and the cross section of the ammonia gas/ammonia gas equipartition device is rectangular or circular.
The ammonia spraying pipe is uniformly provided with a plurality of rows of ammonia spraying holes along the longitudinal direction, the diameter of each ammonia spraying hole is 2-15 mm, and the distance between every two ammonia spraying holes is 30-50 mm; the ammonia spraying holes of each row are arranged in a staggered way.
The ammonia/ammonia vapor conveying pipeline is provided with a vertical pipe section and a horizontal pipe section, wherein the vertical pipe section is close to the ammonia/ammonia vapor equipartition device, and the regulating valve is arranged on the vertical pipe section; and the bottom of one end of the horizontal pipe section close to the vertical pipe section is provided with a drainage device.
Compared with the prior art, the beneficial effects of the utility model are that:
1) when the ammonia injection pipe is replaced or the blockage of the ammonia injection hole needs to be cleaned, the denitration device does not need to stop air or cool and ventilate, the blockage can be quickly and conveniently maintained and cleaned on line, and the denitration effect is basically not influenced in the maintenance process;
2) the ammonia gas/ammonia gas equipartition device is arranged below the ammonia spraying pipe and has two main functions; firstly, the evaporated ammonia gas/ammonia vapor is ejected from an ammonia ejecting pipe more smoothly by utilizing the thermal buoyancy of the ammonia-air mixed flue gas in the ammonia ejecting device body; secondly, impurities in the ammonia-air mixed flue gas and condensed water obtained after the flue gas is condensed flow back into the equipartition device, and the condensed water can flow back to the ammonia distillation system through a drainage device arranged at the lowest point, so that the ammonia spraying hole is prevented from being blocked after water vapor and dust are mixed, and the blocking frequency is reduced; if the number of the bins is large, water can be drained and then collected into the water storage tank for uniform treatment.
3) All be equipped with the regulation open and close valve on connecting the lateral pipe of every ammonia injection pipe, can guarantee that the ammonia injection is more even to the stability and the reliability of reinforcing deNOx systems operation promote SCR deNOx systems export NOx and distribute the homogeneity, improve denitration efficiency, reduce ammonia escape.
4) The quick assembly and disassembly of the ammonia spraying pipe are realized through the quick disassembly flange, the fixed sleeve and the positioning sleeve, and the quick alignment of the ammonia spraying pipe during the installation is realized through the saddle-shaped gang pipe bracket.
Drawings
FIG. 1 is a front view of an on-line quick-release and easy-cleaning ammonia sprayer of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a left side view of fig. 1.
Fig. 4 is a view a-a in fig. 2.
Fig. 5 is a schematic structural diagram of the ammonia injection pipe of the present invention.
Fig. 6 is a view B-B in fig. 5.
In the figure: 1. the ammonia spraying device comprises an ammonia spraying device body 2, an ammonia gas/ammonia gas equipartition device 3, an ammonia spraying pipe 31, an ammonia spraying hole 4, an adjusting valve 5, an adjusting opening and closing valve 6, a quick-release flange 7, a fixing sleeve 8, a positioning sleeve 9, a saddle-type union exhaust pipe bracket 91, a reinforcing rib plate 10, a water draining device 11, a denitration device or denitration section flue gas pipeline 12 and a pressure measuring hole
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-4, the ammonia spraying device of the present invention comprises an ammonia spraying device body 1, an ammonia gas/ammonia gas equipartition device 2, a drainage device 10, an ammonia spraying pipe 3, a regulating valve 4, a regulating open/close valve 5 and a quick-release flange 6; the ammonia spraying device body 1 is of a tubular structure, and a plurality of ammonia spraying pipes 3 are arranged on the cross section of the ammonia spraying device body in parallel; one end of the ammonia spraying pipe 3 extends out of the ammonia spraying device body 1; the ammonia gas/ammonia gas equipartition device 2 is arranged below the ammonia spraying pipe 3, a plurality of branch pipes are arranged on the top of the ammonia gas/ammonia gas equipartition device 2 and the ammonia spraying pipe 3 in a one-to-one correspondence manner, adjusting opening and closing valves 5 are arranged on the branch pipes, and the extending sections of the ammonia spraying pipe 3 are connected with the branch pipes through quick-release flanges 6; the bottom of the ammonia/ammonia vapor equipartition device 2 is provided with an ammonia/ammonia vapor inlet which is connected with an ammonia/ammonia vapor conveying pipeline; and the ammonia gas/ammonia gas conveying pipeline is provided with a regulating valve 4 and a drainage device 10.
The ammonia injection device body 1 is used for being installed on a denitration device or a denitration section flue gas pipeline 11, and the shape and the size of the ammonia injection device body are matched with those of the corresponding denitration device or denitration section flue gas pipeline 11.
A through hole is arranged on the outer side wall of the ammonia spraying device body 1 close to one end of the ammonia/ammonia vapor equipartition device 2, a fixed sleeve 7 is arranged on the outer side of the through hole, and a positioning sleeve 8 is arranged on the inner side wall of the ammonia spraying device body 1 far away from one end of the ammonia/ammonia vapor equipartition device 2; one end of the ammonia spraying pipe 3 penetrates through the through hole and then extends into the ammonia spraying device body 1, and two ends of the ammonia spraying pipe 3 are respectively supported by a positioning sleeve 8 and a fixing sleeve 7; and the ammonia spraying pipe 3 is fixedly connected with the fixed sleeve 7 through a quick-release flange 6.
As shown in fig. 5, the end of the ammonia injection pipe 3, which is matched with the positioning sleeve 8, is in a frustum shape.
The positioning sleeve 8 and the fixed sleeve 7 corresponding to the same ammonia spraying pipe 3 are coaxially arranged, and the inner diameters of the positioning sleeve 8 and the fixed sleeve 7 are the outer diameter + (2-5) mm of the ammonia spraying pipe 3.
A plurality of saddle-shaped row pipe brackets 9 are uniformly arranged in the ammonia spraying device body 1 along the axial direction of the ammonia spraying pipe 3 and are used for auxiliary support and guiding and positioning of the ammonia spraying pipe 3; two ends of the saddle-type pipe bracket 9 are respectively fixed with the side wall of the ammonia spraying device body 1, as shown in fig. 6, a plurality of semicircular grooves are arranged at the top of the saddle-type pipe bracket 9 and each ammonia spraying pipe 3 in a matching way; along the longitudinal direction of the saddle-type gang pipe support 9, a plurality of reinforcing rib plates 91 are respectively arranged on two sides of the saddle-type gang pipe support 9.
And the top of the overhanging section of the ammonia spraying pipe 3 is provided with a pressure measuring hole 12 for calibrating the uniformity and balance of ammonia spraying and judging whether the ammonia spraying pipe 3 is blocked or not according to the pressure.
As shown in fig. 2, the ammonia gas/ammonia gas equipartition device 2 is arranged along the arrangement direction of the ammonia spraying pipes 3, and the cross section of the ammonia gas/ammonia gas equipartition device is rectangular or circular.
As shown in fig. 2 and 5, the ammonia spraying pipe 3 is uniformly provided with a plurality of rows of ammonia spraying holes 31 along the longitudinal direction, the diameter of the ammonia spraying holes 31 is 2-15 mm, and the distance between the ammonia spraying holes 31 is 30-50 mm; the rows of ammonia injection holes 31 are staggered.
The ammonia/ammonia vapor conveying pipeline is provided with a vertical pipe section and a horizontal pipe section, wherein the vertical pipe section is close to the ammonia/ammonia vapor equipartition device 2, and the regulating valve 4 is arranged on the vertical pipe section; the bottom of the horizontal pipe section close to one end of the vertical pipe section is provided with a drainage device 10.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (10)
1. An online quick-release easy-cleaning ammonia spraying device is characterized by comprising an ammonia spraying device body, an ammonia gas/ammonia gas equipartition device, a drainage device, an ammonia spraying pipe, an adjusting valve, an adjusting opening and closing valve and a quick-release flange; the ammonia spraying device body is of a tubular structure, and a plurality of ammonia spraying pipes are arranged on the cross section of the ammonia spraying device body in parallel; one end of the ammonia spraying pipe extends out of the ammonia spraying device body; the ammonia gas/ammonia gas distributor is arranged below the ammonia spraying pipe, a plurality of branch pipes are arranged at the top of the ammonia gas/ammonia gas distributor in one-to-one correspondence with the ammonia spraying pipe, adjusting opening and closing valves are arranged on the branch pipes, and the extending sections of the ammonia spraying pipe are connected with the branch pipes through quick-release flanges; the bottom of the ammonia gas/ammonia gas equipartition device is provided with an ammonia gas/ammonia gas inlet which is connected with an ammonia gas/ammonia gas conveying pipeline; and the ammonia gas/ammonia gas conveying pipeline is provided with an adjusting valve and a drainage device.
2. The on-line quick-release easy-cleaning ammonia injection device of claim 1, wherein the ammonia injection device body is used for being mounted on a denitration device or a denitration section flue gas pipeline, and the shape and the size of the ammonia injection device body are matched with those of the corresponding denitration device or denitration section flue gas pipeline.
3. The ammonia spraying device of claim 1, wherein the outer side wall of the ammonia spraying device body near one end of the ammonia gas/ammonia vapor distributor is provided with a through hole, the outer side of the through hole is provided with a fixed sleeve, and the inner side wall of the ammonia spraying device body far away from one end of the ammonia gas/ammonia vapor distributor is provided with a positioning sleeve; one end of the ammonia spraying pipe penetrates through the through hole and then extends into the ammonia spraying device body, and two ends of the ammonia spraying pipe are respectively supported by a positioning sleeve and a fixing sleeve; and the ammonia spraying pipe is fixedly connected with the fixed sleeve through a quick-release flange.
4. The on-line quick-release easy-cleaning ammonia spraying device as claimed in claim 3, wherein the end of the ammonia spraying pipe, which is matched with the positioning sleeve, is in a frustum shape.
5. The on-line quick-release easy-cleaning ammonia spraying device as claimed in claim 3, wherein the positioning sleeve and the fixing sleeve corresponding to the same ammonia spraying pipe are coaxially mounted, and the inner diameters of the positioning sleeve and the fixing sleeve are the outer diameter + (2-5) mm of the ammonia spraying pipe.
6. The ammonia spraying device of claim 1, 2 or 3, wherein a plurality of saddle-shaped pipe brackets are uniformly arranged in the ammonia spraying device body along the axial direction of the ammonia spraying pipe, and are used for auxiliary support and guiding positioning of the ammonia spraying pipe; two ends of the saddle-type pipe bracket are respectively fixed with the side wall of the ammonia spraying device body, and a plurality of semicircular grooves are formed in the top of the saddle-type pipe bracket and are matched with the ammonia spraying pipes; and a plurality of reinforcing rib plates are respectively arranged on two sides of the saddle-type gang pipe support along the longitudinal direction of the saddle-type gang pipe support.
7. The on-line quick-release and easy-to-clean ammonia spraying device as claimed in claim 1, wherein a pressure measuring hole is formed in the top of the extending section of the ammonia spraying pipe.
8. The on-line quick-release easy-cleaning ammonia injection device according to claim 1, wherein the ammonia gas/ammonia gas equipartition device is arranged along the arrangement direction of the ammonia injection pipes, and the cross section of the ammonia gas/ammonia gas equipartition device is rectangular or circular.
9. The on-line quick-release easy-cleaning ammonia spraying device as claimed in claim 1, 3, 4 or 7, wherein the ammonia spraying pipe is uniformly provided with a plurality of rows of ammonia spraying holes along the longitudinal direction, the diameter of the ammonia spraying holes is 2-15 mm, and the distance between the ammonia spraying holes is 30-50 mm; the ammonia spraying holes of each row are arranged in a staggered way.
10. The ammonia injection device of claim 1, wherein the ammonia gas/ammonia vapor delivery pipeline is provided with a vertical pipe section and a horizontal pipe section, wherein the vertical pipe section is close to the ammonia gas/ammonia vapor equipartition device, and the regulating valve is arranged on the vertical pipe section; and the bottom of one end of the horizontal pipe section close to the vertical pipe section is provided with a drainage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022203562.XU CN213790954U (en) | 2020-09-30 | 2020-09-30 | Online quick detach easily clears up type and spouts ammonia device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022203562.XU CN213790954U (en) | 2020-09-30 | 2020-09-30 | Online quick detach easily clears up type and spouts ammonia device |
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| Publication Number | Publication Date |
|---|---|
| CN213790954U true CN213790954U (en) | 2021-07-27 |
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|---|---|---|---|
| CN202022203562.XU Active CN213790954U (en) | 2020-09-30 | 2020-09-30 | Online quick detach easily clears up type and spouts ammonia device |
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| CN (1) | CN213790954U (en) |
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- 2020-09-30 CN CN202022203562.XU patent/CN213790954U/en active Active
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