CN215962977U - Empty blender of ammonia - Google Patents
Empty blender of ammonia Download PDFInfo
- Publication number
- CN215962977U CN215962977U CN202121793781.6U CN202121793781U CN215962977U CN 215962977 U CN215962977 U CN 215962977U CN 202121793781 U CN202121793781 U CN 202121793781U CN 215962977 U CN215962977 U CN 215962977U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- mixer
- pipeline
- mixer shell
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 11
- 238000009792 diffusion process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 16
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The utility model relates to an ammonia-air mixer, which comprises a mixer shell, a sealing cover plate, an ammonia supply pipeline, a central shaft and a spoiler, wherein the mixer shell is provided with a sealing cover plate; the mixer shell is a cuboid, one end of the mixer shell is an air inlet, the other end of the mixer shell is a mixed gas outlet, and the sealing cover plate is connected with the mixer shell through threads; the ammonia supply pipeline is fixed inside the mixer shell in a mode of three sections of overlapped sections and sequentially arranged from top to bottom, so that the ammonia diffusion effect is enhanced, and air and ammonia are mixed for the first time; the 8 trapezoidal spoilers are fixed on the central shaft and the inner wall of the mixer shell in a staggered sorting mode, the central shaft is fixed on the bottom surface inside the mixer shell through a support, air and ammonia gas are mixed for the second time, the flowing direction of the gas can be disturbed by adopting the staggered sorting arrangement mode, and the mixing is more uniform; the utility model mixes ammonia gas and air twice, the mixing effect is better, and the utility model has simple structure, convenient manufacture and convenient disassembly, assembly and maintenance.
Description
Technical Field
The utility model relates to gas mixing equipment, in particular to an ammonia-air mixer.
Background
The catalyst adopted by the flue gas SCR (selective catalytic reduction) denitration treatment device installed and used in the existing thermal power plant is ammonia gas, the ammonia gas can enter the flue gas SCR denitration treatment device after being mixed with air, whether the ammonia gas and the air can be uniformly mixed becomes an important factor influencing the SCR denitration efficiency, the nonuniform mixing of the ammonia gas and the air can seriously influence the removal efficiency of nitrogen oxides and cause the ammonia gas to be discharged out of standard, the problems of catalyst waste, dust deposition and the like can also be caused, and the economic operation of a unit is seriously influenced; and with the increasing environmental situation and the rising of ultra-low emission, the environmental protection standard in China is becoming more and more strict, so the requirement on the ammonia-air mixer for mixing ammonia gas and air is very high.
The existing ammonia air mixers are various in types, but have some problems, and some mixers are poor in mixing uniformity; the pressure drop of the existing mixer is large; some of the devices have complex structure, complex manufacturing and high cost; some ammonia air mixers promote the mixing effect through the mode that sets up the spoiler, but do not optimize the ammonia supply pipeline, and the ammonia supply pipeline generally is slender pipe, and the diffusion effect of ammonia is relatively poor, does not reach good mixing effect.
Therefore, the development of an ammonia-air mixer with simple structure, convenient manufacture, low cost, good ammonia gas diffusion effect and uniform mixing has become a technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides the ammonia air mixer which is simple in structure and good in mixing effect.
The technical requirements of the utility model are as follows: an ammonia-air mixer comprises a mixer shell, a sealing cover plate, an ammonia supply pipeline, a central shaft and a spoiler; the mixer shell is a cuboid, a threaded hole is formed in the mixer shell, an air inlet is formed in one end of the mixer shell, and a mixed gas outlet is formed in the other end of the mixer shell; the ammonia supply pipeline is fixed inside the mixer shell; the spoiler is trapezoidal and is fixed on the central shaft and the inner wall of the mixer shell in a staggered sequencing mode, and the sealing cover plate is matched with the outer contour of the mixer shell and is connected with the mixer shell through threaded connection.
The ammonia supply pipeline adopts a mode of stacking three same pipelines in parallel, each pipeline is respectively composed of a vertical pipeline, a 90-degree elbow and a horizontal pipeline, the vertical pipeline of the second pipeline is connected with the horizontal pipeline of the first pipeline, the vertical pipeline of the third pipeline is connected with the horizontal pipeline of the second pipeline, and the three pipelines are sequentially arranged in the mixer from top to bottom.
The sealing cover plate is provided with a through hole matched with the pipe diameter of the ammonia supply pipeline, and the ammonia supply pipeline passes through the through hole and is fixed in the mixer.
The number of the spoilers is 8, 4 spoilers are fixed on the central shaft, and the other 4 spoilers are fixed on the inner wall of the mixer shell.
The included angle a =45 ° between the spoiler and the horizontal line.
The central shaft, the air inlet and the mixed gas outlet are coaxial, and the central shaft is fixed on the bottom surface in the mixer shell through a support.
The utility model has the beneficial technical effects that: the ammonia-air mixer comprises a mixer shell, an ammonia supply pipeline, a central shaft and a spoiler, wherein the mixer shell is provided with a mixing cavity; the mixer shell is a cuboid, one end of the mixer shell is an air inlet, the other end of the mixer shell is a mixed gas outlet, and the sealing cover plate is connected with the mixer shell through threads; the ammonia supply pipeline is fixed inside the mixer shell in a mode of three sections of overlapped sections and sequentially arranged from top to bottom, so that the ammonia diffusion effect is enhanced, and air and ammonia are mixed for the first time; the 8 trapezoidal spoilers are fixed on the central shaft and the inner wall of the mixer shell in a staggered sorting mode, the central shaft is fixed on the bottom surface inside the mixer shell through a support, air and ammonia gas are mixed for the second time, the flowing direction of the gas can be disturbed by adopting the staggered sorting arrangement mode, and the mixing is more uniform; the utility model mixes ammonia gas and air twice, and has good mixing effect, simple structure, convenient manufacture and convenient disassembly, assembly and maintenance.
Drawings
FIG. 1 is a perspective view of the ammonia air mixer of the present invention (with the sealing cover removed);
FIG. 2 is a perspective view of a sealing cover plate (with bolts);
FIG. 3 is a top view of the ammonia air mixer of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a front view of the ammonia air mixer of the present invention;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
FIG. 7 is a perspective view of the center shaft mounted spoiler and bracket;
FIG. 8 is a perspective view of an ammonia supply conduit;
FIG. 9 is a front view of an ammonia supply conduit;
FIG. 10 is a schematic diagram of the ammonia air mixer of the present invention;
in the figure: 1. the mixer comprises a mixer shell, 11 air inlets, 12 mixed gas outlets, 13 threaded holes, 14 bolts, 2 ammonia supply pipelines, 21 vertical section pipelines, 22.90-degree bent pipes, 23 horizontal section pipelines, 3 central shafts, 4 spoilers, 5 supports, 6 air flows, 7 ammonia flows, 8 ammonia-air mixed gas, 9 sealing cover plates and 10 through holes.
Detailed Description
Embodiment one referring to fig. 1 to 10, an ammonia air mixer includes a mixer housing, an ammonia supply pipe, a central shaft, and a spoiler; the mixer shell is a cuboid, one end of the mixer shell is provided with an air inlet, and the other end of the mixer shell is provided with a mixed gas outlet; the ammonia supply pipeline is fixed inside the mixer shell; the spoiler be trapezoidal, fix at center pin and blender shells inner wall through the mode of staggered arrangement sequencing, the mode that adopts staggered arrangement sequencing to arrange also can disturb gaseous flow direction, mix more evenly, sealed apron and blender shells outer profile phase-match open threaded hole on the blender shell, sealed apron passes through threaded connection and blender shell coupling, be convenient for dismantle installation and maintenance.
The ammonia supply pipeline adopts a mode of stacking three sections of pipelines in parallel, each section of pipeline is respectively composed of a vertical section of pipeline, a 90-degree bent pipe and a horizontal section of pipeline, the vertical section of pipeline of the second section of pipeline is connected with the horizontal section of pipeline of the first section of pipeline, the vertical section of pipeline of the third section of pipeline is connected with the horizontal section of pipeline of the second section of pipeline, the three sections of pipelines are sequentially arranged in the mixer from top to bottom to enhance the diffusion effect of ammonia gas, and air and ammonia gas are mixed for the first time.
The sealing cover plate is provided with a through hole matched with the pipe diameter of the ammonia supply pipeline, and the ammonia supply pipeline passes through the through hole and is fixed in the mixer.
The number of the spoilers is 8, 4 spoilers are fixed on the central shaft, and in addition, 4 spoilers are fixed on the inner wall of the mixer shell, and the included angle between each spoiler and the horizontal line is a =45 degrees, so that the air and the ammonia gas are mixed for the second time.
The central shaft, the air inlet and the mixed gas outlet are coaxial, and the central shaft is fixed on the bottom surface in the mixer shell through a support.
The using method comprises the following steps: after all the parts are installed, the sealing cover plate is changed to the mixer shell by bolts, and the vertical section of the first section of the ammonia supply pipeline is connected with the ammonia tank to allow ammonia gas to flow in; connecting an air inlet of the mixer shell with an air pump to supply air; the mixed gas outlet of the mixer shell is connected with equipment needing to input ammonia-air mixed gas flow, ammonia gas and air can be mixed for the first time in an ammonia supply pipeline area and then enter an area of the spoiler, the flowing direction of the gas is disturbed due to the structure and the arrangement mode of the spoiler, the space is reduced to cause the gas flow to be crowded, the air and the ammonia gas are mixed for the second time, and the mixed gas flow flows out from the mixed gas outlet of the mixer shell and enters the equipment needing the ammonia-air mixed gas flow.
Claims (6)
1. An ammonia-air mixer is characterized in that: comprises a mixer shell, a sealing cover plate, an ammonia supply pipeline, a central shaft and a spoiler; the mixer shell is a cuboid, a threaded hole is formed in the mixer shell, an air inlet is formed in one end of the mixer shell, and a mixed gas outlet is formed in the other end of the mixer shell; the ammonia supply pipeline is fixed inside the mixer shell; the spoiler is trapezoidal and is fixed on the central shaft and the inner wall of the mixer shell in a staggered sequencing mode, and the sealing cover plate is matched with the outer contour of the mixer shell and is connected with the mixer shell through threaded connection.
2. An ammonia-air mixer as claimed in claim 1, characterized in that: the ammonia supply pipeline adopts a mode of stacking three same pipelines in parallel, each pipeline is respectively composed of a vertical pipeline, a 90-degree elbow and a horizontal pipeline, the vertical pipeline of the second pipeline is connected with the horizontal pipeline of the first pipeline, the vertical pipeline of the third pipeline is connected with the horizontal pipeline of the second pipeline, and the three pipelines are sequentially arranged in the mixer from top to bottom.
3. An ammonia-air mixer as claimed in claim 1, characterized in that: the sealing cover plate is provided with a through hole matched with the pipe diameter of the ammonia supply pipeline, and the ammonia supply pipeline passes through the through hole and is fixed in the mixer.
4. An ammonia-air mixer as claimed in claim 1, characterized in that: the number of the spoilers is 8, 4 spoilers are fixed on the central shaft, and the other 4 spoilers are fixed on the inner wall of the mixer shell.
5. An ammonia-air mixer as claimed in claim 1, characterized in that: the included angle a =45 ° between the spoiler and the horizontal line.
6. An ammonia-air mixer as claimed in claim 1, characterized in that: the central shaft, the air inlet and the mixed gas outlet are coaxial, and the central shaft is fixed on the bottom surface in the mixer shell through a support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793781.6U CN215962977U (en) | 2021-08-03 | 2021-08-03 | Empty blender of ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121793781.6U CN215962977U (en) | 2021-08-03 | 2021-08-03 | Empty blender of ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215962977U true CN215962977U (en) | 2022-03-08 |
Family
ID=80576861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121793781.6U Expired - Fee Related CN215962977U (en) | 2021-08-03 | 2021-08-03 | Empty blender of ammonia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215962977U (en) |
-
2021
- 2021-08-03 CN CN202121793781.6U patent/CN215962977U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220308 |