CN207413156U - A kind of boiler ammonia-spraying grid attachment device - Google Patents
A kind of boiler ammonia-spraying grid attachment device Download PDFInfo
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- CN207413156U CN207413156U CN201721160128.XU CN201721160128U CN207413156U CN 207413156 U CN207413156 U CN 207413156U CN 201721160128 U CN201721160128 U CN 201721160128U CN 207413156 U CN207413156 U CN 207413156U
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- straight tube
- ammonia
- pipe
- wall panel
- spraying grid
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Abstract
The utility model provides a kind of boiler ammonia-spraying grid attachment device, can be convenient for the examination and maintenance of ammonia-spraying grid, reduce input cost；It includes wall panel, the first perforate is provided on the wall panel, ammonia pipe one end is sprayed to be arranged on the wall panel through first perforate, the first straight tube is connected on the wall panel of first tapping, the spray ammonia pipe other end is connected with hold-down mechanism, and is pressed in first straight tube.
Description
Technical field
The utility model is related to boiler plant technical fields, are specially a kind of boiler ammonia-spraying grid attachment device.
Background technology
In SCR, reducing medium has ammonium hydroxide and liquefied ammonia, and ammonia and air are thoroughly mixed to form mixture, the mixture warp of ammonia
It is sufficiently mixed by ammonia-spraying grid pipe etc. into flue with flue gas, wherein, on the one hand ammonia-spraying grid can allow the ammonia of each spout setting
Flue gas in the length of mixing of meter and in each mentioned nozzle area uniformly mixes, on the other hand, can allow penetrating ammonia distribution and
The distribution of NOX matches as far as possible in flue gas so that the distribution of NH3/NOX molar ratios is as far as possible uniform, and therefore, ammonia-spraying grid is in SCR
A more important component, however ammonium hydroxide quality is bad, coal quality is poor, flue gas impurity is excessive, spray ammonia hole flow velocity is excessively slow,
It sprays that ammonia hole aperture is too small and the presence of the various site problems such as fan delivery and pressure, can cause to spray ammonia pipe i.e. ammonia-spraying grid
It blocks, is mixed so as to influence ammonia with the diffusion of flue gas and final denitration efficiency, so, the examination and maintenance for ammonia-spraying grid
The important link of a step, still, existing ammonia-spraying grid is but not easy to disassemble from wall panel, this to regular maintenance and
Maintenance brings certain inconvenience and puzzlement, and can not once repair, and the cost for replacing spray ammonia pipe is also bigger.
The content of the invention
In view of the above-mentioned problems, the utility model provides a kind of boiler ammonia-spraying grid attachment device, spray ammonia can be convenient for
The examination and maintenance of grid reduce input cost.
The technical solution of the utility model is a kind of ammonia-spraying grid bindiny mechanism, including wall panel, the walling of flue
The first perforate is provided on plate, spray ammonia pipe one end is arranged on through first perforate on the wall panel, which is characterized in that is located at
The first straight tube is connected on the wall panel of first tapping, the spray ammonia pipe other end is connected with hold-down mechanism,
And it is pressed in first straight tube.
It is further characterized by：
The hold-down mechanism includes the second straight tube, and described second straight tube one end is set on first straight tube, and described the
The two straight tube other ends are connected to by sealing plate on the spray ammonia pipe, are surrounded in first straight tube, the second straight tube and sealing plate
The spray ammonia pipe pipe portion in cavity is arranged with asbestos cord；
First straight tube, the second straight tube are steel pipe；
The outer diameter of first straight tube is less than the internal diameter of second straight tube；The internal diameter of first straight tube is not less than described
The aperture of first perforate, and more than the outer diameter of the spray ammonia pipe.
The beneficial effects of the utility model are that the first straight tube is connected on the wall panel of the first tapping, spray ammonia
Pipe connects hold-down mechanism, and passes through hold-down mechanism and be pressed in the first straight tube, then spraying ammonia pipe can easily extract out on wall panel
Or installation, when ammonia pipe is sprayed in dismounting, existing structure can be also avoided damage to, so as to be beneficial to the regular maintenance cleaning of spray ammonia pipe,
Ensure spray ammonia effect, improve denitration efficiency, and effectively reduce the cost input for replacing spray ammonia pipe.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In Fig. 1,1, wall panel；11st, the first perforate；2nd, the first straight tube；3rd, ammonia pipe is sprayed；4th, the second straight tube；5th, sealing plate；
51st, the second perforate；6th, asbestos cord.
Specific embodiment
As shown in Figure 1, the utility model includes wall panel 1, the first perforate 11 is provided on wall panel 1, wherein, first
For being inserted into spray ammonia pipe 3, multiple spray ammonia pipes 3 according to certain rule arrangement form ammonia-spraying grid for perforate 11；Spray ammonia pipe 3 one
End is arranged on through the first perforate 11 on wall panel 1, and the first straight tube 2 is welded on the wall panel 1 at the first perforate 11,
3 other end of spray ammonia pipe is welded with hold-down mechanism, and is pressed in the first straight tube 2.
Hold-down mechanism includes the second straight tube 4, and 4 one end of the second straight tube is set on the first straight tube 2,4 other end of the second straight tube
It is connected to by sealing plate 5 on spray ammonia pipe 3, the second perforate 51 is provided on sealing plate 5,4 other end of the second straight tube is arranged in the second perforate
In 51,3 pipe portion of spray ammonia pipe in cavity surrounded in the first straight tube 2, the second straight tube 4 and sealing plate 5 is arranged with asbestos cord 6；The
One straight tube 2, the second straight tube 4 are steel pipe；The outer diameter of first straight tube 2 is less than the internal diameter of the second straight tube 4；The internal diameter of first straight tube 2
Not less than the aperture of the first perforate 11, and more than the outer diameter of spray ammonia pipe 3.
The operation principle of the utility model is that spray ammonia pipe 3 is inserted into from the first perforate 11 of wall panel 1 in flue, with
The mixture of ammonia is sprayed into flue, asbestos cord 6 is provided between the second straight tube 4 and spray ammonia pipe 3, with to the second straight tube 4 and spray
Be sealed between ammonia pipe 3, between spray ammonia pipe 3 and the first straight tube 2, effectively prevent substance in flue by the first straight tube 2 with
Gap between spray ammonia pipe 3 leaks out, then spraying ammonia pipe 3 easily can extract out or install on wall panel 1, without other
Operation when ammonia pipe is sprayed in dismounting, can avoid damage to existing structure, so as to the regular maintenance cleaning beneficial to spray ammonia pipe, when again
When spray ammonia pipe 3 is inserted into installation to wall panel 1, only asbestos cord 6 need to be wound on spray ammonia pipe 3 again, then spray ammonia pipe 3 is inserted
Enter the first perforate 11 on wall panel 1, the first straight tube 2 with asbestos cord 6 is compressed, so as to ensure that spray ammonia effect, is carried
High denitration efficiency, and can effectively reduce the cost input for replacing spray ammonia pipe.
Claims (4)
1. a kind of ammonia-spraying grid bindiny mechanism including wall panel, is provided with the first perforate, spray ammonia pipe one on the wall panel
End is arranged on through first perforate on the wall panel, which is characterized in that positioned at the flue of first tapping
The first straight tube is connected on siding, the spray ammonia pipe other end is connected with hold-down mechanism, and is pressed in first straight tube.
2. a kind of ammonia-spraying grid bindiny mechanism according to claim 1, which is characterized in that the hold-down mechanism includes second
Straight tube, described second straight tube one end are set on first straight tube, and the second straight tube other end is connected to institute by sealing plate
It states on spray ammonia pipe, the spray ammonia pipe pipe portion in cavity surrounded in first straight tube, the second straight tube and sealing plate is arranged with
Asbestos cord.
3. a kind of ammonia-spraying grid bindiny mechanism according to claim 2, which is characterized in that first straight tube, second are directly
Pipe is steel pipe.
4. a kind of ammonia-spraying grid bindiny mechanism according to claim 2, which is characterized in that the outer diameter of first straight tube is small
In the internal diameter of second straight tube；The internal diameter of first straight tube is not less than the aperture of first perforate, and more than the spray
The outer diameter of ammonia pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721160128.XU CN207413156U (en) | 2017-09-12 | 2017-09-12 | A kind of boiler ammonia-spraying grid attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721160128.XU CN207413156U (en) | 2017-09-12 | 2017-09-12 | A kind of boiler ammonia-spraying grid attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207413156U true CN207413156U (en) | 2018-05-29 |
Family
ID=62316064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721160128.XU Active CN207413156U (en) | 2017-09-12 | 2017-09-12 | A kind of boiler ammonia-spraying grid attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207413156U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889106A (en) * | 2018-07-24 | 2018-11-27 | 玖龙纸业（太仓）有限公司 | A kind of boiler flue spray ammonia system |
| CN109433010A (en) * | 2018-12-03 | 2019-03-08 | 中国华电科工集团有限公司 | A kind of gas turbine SCR method denitrating flue gas ammonia-spraying grid device |
-
2017
- 2017-09-12 CN CN201721160128.XU patent/CN207413156U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889106A (en) * | 2018-07-24 | 2018-11-27 | 玖龙纸业（太仓）有限公司 | A kind of boiler flue spray ammonia system |
| CN109433010A (en) * | 2018-12-03 | 2019-03-08 | 中国华电科工集团有限公司 | A kind of gas turbine SCR method denitrating flue gas ammonia-spraying grid device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220926 Address after: 3 / F, 406 Jinhua North Road, Xincheng District, Xi'an, Shaanxi 710000 Patentee after: Huaguang Environmental Energy (Xi'an) Design and Research Institute Co.,Ltd. Address before: No. 123, Meiyu Road, New District, Wuxi City, Jiangsu Province, 214112 Patentee before: WUXI HUAGUANG NEW POWER ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |