CN203916479U - Be arranged at gas mixer in gas passage and the gas mixer of composition thereof - Google Patents
Be arranged at gas mixer in gas passage and the gas mixer of composition thereof Download PDFInfo
- Publication number
- CN203916479U CN203916479U CN201420093286.8U CN201420093286U CN203916479U CN 203916479 U CN203916479 U CN 203916479U CN 201420093286 U CN201420093286 U CN 201420093286U CN 203916479 U CN203916479 U CN 203916479U
- Authority
- CN
- China
- Prior art keywords
- gas
- central nozzle
- guide vane
- gas mixer
- mixer
- 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 - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims description 10
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000013459 approach Methods 0.000 claims abstract description 7
- 238000003833 Wallach reaction Methods 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 77
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 54
- 229910021529 ammonia Inorganic materials 0.000 abstract description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 25
- 239000003546 flue gas Substances 0.000 abstract description 25
- 239000003638 chemical reducing agent Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 description 18
- 230000003068 static effect Effects 0.000 description 7
- 230000009466 transformation Effects 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000010531 catalytic reduction reaction Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of gas mixer being arranged in gas passage, comprises air supply pipe, central nozzle and guide vane; Described air supply pipe connects and deliver a gas to central nozzle; Described central nozzle is shaped as the tubular extending out gradually along injection direction; Described guide vane is arranged at central nozzle outer wall and approaches central nozzle mouth place, and the air-flow in guiding gas passage is taking central nozzle as axle rotational flow.The special construction of central nozzle and guide vane in the utility model, make flue gas and reducing gas form eddy flow in the same way, due to both spirals, there is the effect of mutually entrainmenting, can improve on the one hand the mixing intensity of reducing agent, improve denitration efficiency and reduce the escaping of ammonia rate, can extend on the other hand the time of staying of reducing agent.In addition, because central nozzle and blender set become parts, the degree of depth of arrangement of components is reduced, further extended the mixing distance of flue gas and reducing agent.
Description
Technical field
The utility model relates to a kind of gas mixer in gas passage and gas mixer of composition thereof of being arranged at, and belongs to gas mixer technical field.
Background technology
Selective catalytic reduction (Selective Catalytic Reduction) is current industrial most important denitration technology.It is widely used in the fields such as boats and ships, motor vehicle, thermal power plant, and the burning of engine or boiler produces nitrogen oxide NOx, and these gas dischargings, in atmosphere, can bring the harm such as acid rain, photochemical fog, Ozone Layer Depletion, affect the mankind's life.SCR technology is under the effect of catalyst, and reactant is adsorbed on catalyst, generates the N harmless to the mankind
2and H
2o, due to the existence of catalyst, denitration efficiency can reach very high level.
In recent years atmosphere pollutants emission standards day stricter, aspect thermal power plant, domestic requirements carries out retrofit work to the active service unit that denitration device is not installed, and between economizer and air preheater, installs SCR system additional.Due to the restriction in transformation space and place, transformation can cause flue gas and reducing agent to mix distance not, makes catalyst upper strata NH
3/ NOx skewness.The concentration field on catalyst upper strata is the important indicator of examination SCR Flue duct design, if concentration field uniformity does not reach standard, at NH
3the place that/NOx is too high, the escapement ratio of ammonia can raise, and when serious, may cause air preheater or the obstruction of equipment thereafter.In the too low place of NH3/NOx, denitration efficiency can not be guaranteed.Under the not high operating mode of the denitration efficiencies such as burning deflection, boiler at low load operation, the efficient meaning of mixing of reducing agent and flue gas is more outstanding especially.
In SCR system, static mixer mixes and has the most directly impact ammonia nitrogen.In Turbulent Flow Field, blender utilizes self special structure, makes former flue gas produce deflection or form the disturbances such as eddy current, eddy flow to improve mixing intensity, to reduce to mix distance.And be accompanied by efficient mixing, and system pressure drop also can raise, and causes air-introduced machine power consumption to rise, and therefore designs efficient blender, and reasonably balanced economy and feature of environmental protection problem are current important problems.
Summary of the invention
Goal of the invention: the purpose of this utility model is to provide the gas at rest blender of the effect of the entrainmenting strengthening mixed effect between a kind of inserted type double-cyclone that utilizes blender blade and the formation of gradual-enlargement type nozzle.
Technical scheme: a kind of gas mixer being arranged in gas passage of the utility model, comprises air supply pipe, central nozzle and guide vane, air supply pipe connects and deliver a gas to central nozzle, central nozzle is shaped as the tubular that extends out gradually along injection direction as shown in Figure 1, and gas expands to larger scope from central nozzle ejection like this, guide vane is arranged at central nozzle outer wall and approaches central nozzle mouth place, air-flow in guiding gas passage is taking central nozzle as axle rotational flow, make air-flow in gas passage after guide vane, rotation is advanced, mix with the gas rotating extending out spraying in central nozzle and drive the two kinds of gases of gas one logical rotation that extend out ejection in central nozzle fully to mix, and when in a typical use SCR who is applied to this gas mixer during as gas at rest blender, when flue gas is wrapped in to the ammonia spraying in central nozzle, both mix and have fully effectively improved denitration efficiency, and due to ammonia is advanced by flue gas rotation parcel, reduce the escaping of ammonia rate as shown in the typical streamline of ejection and gas and flue gas in the central nozzle that dotted line in Fig. 2 represents.
Further, preferred center nozzle form be expand gradually along injection direction cross section cylindrical shape, preferably guide vane is welded in and on central nozzle outer wall, approaches central nozzle mouth place.
Preferably guide vane quantity is four.
Further, guide vane is spent Rotational Symmetry setting taking central nozzle as Rotational Symmetry center 90.
Further, the edge of guide vane is streamlined.
Further, air supply pipe cross section is rectangle, and cross section, place, central nozzle gas access is circular, and air supply pipe is welded in the gas access place of central nozzle, and this rectangle and central nozzle entrance tangent.
Further, guide vane is metal guide vane processed.
Further, described gas passage is flue, and described air supply pipe is perpendicular to the front wall collocation of flue.
The gas mixer that is arranged at the gas mixer composition in flue of the present utility model, formed by several gas mixers of the present utility model, also comprise control valve, gas mixer also comprises the female pipe of air feed, control valve is arranged on the air supply pipe of each gas mixer, the air supply pipe of each gas mixer is communicated to the female pipe of air feed, arranges like this, is convenient to meet the needs that gas mixes on a large scale.In addition, by the central nozzle gas flow in each single gas mixer of control valve control, can regulate according to the velocity field of flue gas before spray ammonia cross section the aperture of each spray ammonia pipe, the position that velocity of flue gas is large, NOx mass flowrate is large, correspondingly will spray more ammonia.Like this, make overall denitration better.
Further, preferably several gas mixers are ranks and arrange on flue cross section.
When this device as selective catalytic reduction in denitration when application, this device is integrated into a model ammonia injection component central nozzle and static mixer.
Further, each guide vane shape is identical with the angle between guide vane, and all becomes identical angle with incoming flow flue gas, arranges like this and can make to form equably and advance round central nozzle rotation through the air-flow of guide vane.
In described gas manifold, rectangle is made in cross section, is welded on flaring type straight cylindrical nozzle below, and square-section and nozzle are tangent, and blender blade is made up of the sheet metal of abrasion-proof corrosion-proof, and four angles of blade are made streamlined.
The utility model compared with prior art, its beneficial effect is: the special construction of central nozzle and guide vane in the utility model, make flue gas and reducing gas form eddy flow in the same way, due to both spirals, there is the effect of mutually entrainmenting, can improve on the one hand the mixing intensity of reducing agent, improve denitration efficiency and reduce the escaping of ammonia rate, can extend on the other hand the time of staying of reducing agent.In addition, because central nozzle and blender set become parts, the degree of depth of arrangement of components is reduced, further extended the mixing distance of flue gas and reducing agent.
Brief description of the drawings
Fig. 1 is a kind of front view schematic diagram that is arranged at the gas mixer in gas passage in the utility model;
Fig. 2 is a kind of top view schematic diagram that is arranged at the gas mixer in gas passage in the utility model;
Fig. 3 is some gas mixer schematic diagrames that are arranged at the gas mixer composition in gas passage in the utility model.
Detailed description of the invention
Below technical solutions of the utility model are elaborated, but protection domain of the present utility model is not limited to described embodiment.
Embodiment 1:
Embodiment of the present utility model be for existing thermal power plant unit utilize selective catalytic reduction denitration the effect that gas uniform mixed through this gas mixer of ammonia and power plant waste gas.But the application occasion of the gas mixer of gas mixer of the present utility model and composition thereof is not limited in this, can be applicable to the occasion that needs gas to mix that can be suitable for that those of ordinary skill in the art can expect.
As shown in Figure 1 and Figure 2, the present embodiment be arranged at the gas mixer in gas passage, it is characterized in that, comprise air supply pipe 2, central nozzle 6 and guide vane 4; Described air supply pipe 2 connects and deliver a gas to central nozzle 6; Described central nozzle 6 is shaped as the tubular extending out gradually along injection direction; Described guide vane 4 is arranged at central nozzle 6 outer walls and approaches 6 mouthfuls of places of central nozzle, and the air-flow in guiding gas passage is taking central nozzle as axle rotational flow.Ammonia mixes mutually with the swirling eddy of firm formation at once from spout ejection, has saved space, has effectively solved the problem of power plant's existing unit SCR transformation insufficient space.Ammonia input air-flow 1 position as shown in Figure 1.
In the present embodiment, specifically arrange central nozzle 6 be shaped as expand gradually along injection direction cross section cylindrical shape; Guide vane 4 is welded in and on central nozzle outer wall, approaches 6 mouthfuls of places of central nozzle.
It is four that guide vane 4 quantity are set, and guide vane 4 is spent Rotational Symmetry setting taking central nozzle 6 as Rotational Symmetry center 90, and the edge of guide vane 4 is streamlined.Air supply pipe 2 cross sections are rectangle, and central nozzle 6 cross sections, gas access place are circular, and air supply pipe 2 is welded in the gas access place of central nozzle 6, and this rectangle and central nozzle entrance tangent.Guide vane 4 is made of metal.
The present embodiment is applied to firepower and finds that in the denitration processing of field, aforesaid gas passage is flue, and air supply pipe 2 is perpendicular to the front wall collocation of flue.
The utility model is integrated into a gas mixer ammonia injection component and static mixer 4, and ammonia injection component comprises air supply pipe 2 and central nozzle 6.Air supply pipe 2 is perpendicular to the front wall collocation of flue, and one end passes flue and connects the female pipe 43 of air feed, and the other end connects central nozzle 6.Central nozzle 6 is designed to flaring type cylindrical structure, central nozzle bottom surface 5 diameters are less than end face, position at central nozzle outer wall near spout, be welded with four guide vanes 4 as shown in Figure 1, 2, between guide vane shape and guide vane, angle is identical, be symmetrical arranged, and all become identical angle with incoming flow flue gas, be convenient to like this form the flue gas stream that Rotating with Uniform is advanced.
Rectangle is made in the interior cross section of gas manifold 2, is welded on flaring type straight cylindrical nozzle below, and square-section and nozzle are tangent, and guide vane 4 is made up of the sheet metal of abrasion-proof corrosion-proof, and four angles of guide vane 4 are made streamlined.When inserted type double-cyclone SCR static mixer real work of the present utility model, situation is as follows:
In SCR reactor, load board-like catalyst, catalyst is divided into three layers, and ground floor is reserved layer, rear two-layer filling catalyst, every layer of catalyst is made up of some catalyst modules, and each catalyst module can be divided into again some catalyst fritters, and catalyst fritter is made up of the catalyst plates stacking.If will improve out of stock efficiency in engineering and reduce the escaping of ammonia rate, must ensure that the ammonia nitrogen on each catalyst module upper strata is than approximate identical, stricter in the situation that, must ensure that the ammonia nitrogen on hole path upper strata in each catalyst fritter upper strata, even each catalyst is than approximate identical.Due to active service Transformation of Unit limited space, make to spray ammonia cross section to mixing distance deficiency between first floor catalyst upper strata, inner in limited mixing distance, if will ensure the requirement that above-mentioned ammonia nitrogen mixes, static mixer is the means of effectively appealing to efficiently.The gas mixer being arranged in gas passage of the present utility model is arranged along cross section in premixed flue 41, design centre nozzle 6 number, central nozzle sectional area Shang Xia 6 as the case may be, because central nozzle 6 and static mixer are integrated into a module, static mixer number equals central nozzle 6 numbers, and each module is divided into some regions flue cross section, according to quantity and the size of the size design blender guide vane 4 in each region, ensure that the eddy flow that flue gas produces can not only wrap the eddy flow that reducing agent produces, and can be full of each region.As shown in Figure 2, smoke gas flow, in the time of guide vane 4, due to the deflecting action of guide vane, makes smoke gas flow produce flue gas eddy flow 3 for flue gas eddy flow 3 and ammonia eddy flow 7.And ammonia is sent into central nozzle bottom by air supply pipe 2, ammonia flow flows along circular central nozzle inwall, form ammonia eddy flow 7, because central nozzle 6 is flaring type cylinders, amass the long-pending bottom section that is greater than of top cross-section, therefore when reducing agent air-flow rises to jet expansion, form diameter and become gradually large ammonia eddy flow 7.Outside, ammonia air-flow 7 is interior for flue gas eddy flow 3, both in the same way, and the trend expanded of the oriented flue gas eddy flow 3 of ammonia eddy flow 7, both entrainment mutually, are evenly distributed in the control area of single blender under the effect of eddy flow.In addition, due to nozzle and the close setting of blender set, the degree of depth of arrangement of components is reduced, further extended the mixing distance of flue gas and reducing agent.
Embodiment 2:
The gas mixer of the gas mixer composition in the some gas passages in embodiment 1, gas mixer also comprises control valve 43, gas mixer also comprises the female pipe 43 of air feed, control valve is arranged on the air supply pipe 2 of each gas mixer, and the air supply pipe 2 of each gas mixer is communicated to the female pipe 43 of air feed.
Several gas mixers are ranks and arrange on gas passage cross section.As shown in Figure 3, the mixed device of flue 41 divides that (the present embodiment is 18, and as shown in Figure 3), the central nozzle 6 in each district feeds reducing agent by corresponding air supply pipe 2 for several districts, the interior reducing agent flow of air supply pipe 2 is regulated by control valve 43, and the interior reducing agent of air supply pipe 2 is from the female pipe 42 of air feed.Adopting this blender is the special construction that has utilized central nozzle 6 and guide vane 4, make flue gas and reducing gas form eddy flow in the same way, ammonia eddy flow 7 both spirals that the flue gas eddy flow 3 that flue gas produces and reducing agent produce, there is the effect of mutually entrainmenting, can improve on the one hand the mixing intensity of reducing agent, improve denitration efficiency and reduce the escaping of ammonia rate, can extend on the other hand the time of staying of reducing agent, effectively having solved the problem of power plant's existing unit SCR transformation insufficient space.In addition, because nozzle and blender set become a model, the degree of depth of arrangement of components is reduced, further extended the mixing distance of flue gas and reducing agent.
As mentioned above, although represented and explained the utility model with reference to specific preferred embodiment, it shall not be construed as the restriction to the utility model self.Not departing under the spirit and scope prerequisite of the present utility model of claims definition, can make in the form and details various variations to it.
Claims (10)
1. be arranged at the gas mixer in gas passage, it is characterized in that, comprise air supply pipe (2), central nozzle (6) and guide vane (4); Described air supply pipe (2) connects and deliver a gas to central nozzle (6); Described central nozzle (6) is shaped as the tubular extending out gradually along injection direction; Described guide vane (4) is arranged at central nozzle (6) outer wall and approaches central nozzle (6) mouthful place, and the air-flow in guiding gas passage is taking central nozzle as axle rotational flow.
2. a kind of gas mixer being arranged in gas passage according to claim 1, is characterized in that, described central nozzle (6) be shaped as expand gradually along injection direction cross section cylindrical shape; Described guide vane (4) is welded in and on central nozzle outer wall, approaches central nozzle (6) mouthful place.
3. a kind of gas mixer being arranged in gas passage according to claim 1, is characterized in that, described guide vane (4) quantity is four.
4. a kind of gas mixer being arranged in gas passage according to claim 3, is characterized in that, described guide vane (4) is spent Rotational Symmetry setting taking central nozzle (6) as Rotational Symmetry center 90.
5. according to a kind of gas mixer being arranged in gas passage described in claim 1,2,3 or 4, it is characterized in that, the edge of described guide vane (4) is streamlined.
6. according to a kind of gas mixer being arranged in gas passage described in claim 1,2,3 or 4, it is characterized in that, described air supply pipe (2) cross section is rectangle, described cross section, central nozzle (6) gas access place is circular, described air supply pipe (2) is welded in the gas access place of central nozzle (6), and this rectangle and central nozzle entrance tangent.
7. according to a kind of gas mixer being arranged in gas passage described in claim 1,2,3 or 4, it is characterized in that, described guide vane (4) is metal guide vane processed (4).
8. according to a kind of gas mixer being arranged in gas passage described in claim 1,2,3 or 4, it is characterized in that, described gas passage is flue (41), and described air supply pipe (2) is perpendicular to the front wall collocation of flue (41).
9. the gas mixer that is arranged at the gas mixer composition in gas passage described in several claims 1,2,3 or 4, it is characterized in that, described gas mixer also comprises control valve (43), described gas mixer also comprises the female pipe of air feed (43), described control valve is arranged on the air supply pipe (2) of each gas mixer, and the air supply pipe (2) of each gas mixer is communicated to the female pipe of air feed (43).
10. a kind of gas mixer according to claim 9, is characterized in that, the gas mixer described in several is ranks and arranges on gas passage cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420093286.8U CN203916479U (en) | 2014-03-03 | 2014-03-03 | Be arranged at gas mixer in gas passage and the gas mixer of composition thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420093286.8U CN203916479U (en) | 2014-03-03 | 2014-03-03 | Be arranged at gas mixer in gas passage and the gas mixer of composition thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203916479U true CN203916479U (en) | 2014-11-05 |
Family
ID=51812361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420093286.8U Expired - Lifetime CN203916479U (en) | 2014-03-03 | 2014-03-03 | Be arranged at gas mixer in gas passage and the gas mixer of composition thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203916479U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894082A (en) * | 2014-03-03 | 2014-07-02 | 东南大学 | Gas mixer arranged in gas channel and gas mixing device composed of gas mixer |
| CN105716412A (en) * | 2016-04-08 | 2016-06-29 | 上海理工大学 | Cyclone intake furnace smoke mixing chamber and lignite boiler including same |
| CN108404662A (en) * | 2018-05-15 | 2018-08-17 | 大唐环境产业集团股份有限公司 | A kind of rotary SCR dynamics mixing of aciculiform and accumulatingdust spray nozzle device |
| CN111467991A (en) * | 2020-03-09 | 2020-07-31 | 南京航空航天大学 | Passive multi-fluid mixer |
| CN115155350A (en) * | 2022-06-10 | 2022-10-11 | 中国石油化工股份有限公司 | Mixer for mixing ethylene and oxygen |
-
2014
- 2014-03-03 CN CN201420093286.8U patent/CN203916479U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894082A (en) * | 2014-03-03 | 2014-07-02 | 东南大学 | Gas mixer arranged in gas channel and gas mixing device composed of gas mixer |
| CN105716412A (en) * | 2016-04-08 | 2016-06-29 | 上海理工大学 | Cyclone intake furnace smoke mixing chamber and lignite boiler including same |
| CN105716412B (en) * | 2016-04-08 | 2018-07-27 | 上海理工大学 | Swirling inlet stove cigarette mixing chamber and the boiler using brown coal including it |
| CN108404662A (en) * | 2018-05-15 | 2018-08-17 | 大唐环境产业集团股份有限公司 | A kind of rotary SCR dynamics mixing of aciculiform and accumulatingdust spray nozzle device |
| CN108404662B (en) * | 2018-05-15 | 2024-06-04 | 大唐环境产业集团股份有限公司 | Needle-shaped rotary SCR dynamic mixing and ash deposition preventing nozzle device |
| CN111467991A (en) * | 2020-03-09 | 2020-07-31 | 南京航空航天大学 | Passive multi-fluid mixer |
| CN115155350A (en) * | 2022-06-10 | 2022-10-11 | 中国石油化工股份有限公司 | Mixer for mixing ethylene and oxygen |
| CN115155350B (en) * | 2022-06-10 | 2024-02-23 | 中国石油化工股份有限公司 | Mixer for mixing ethylene and oxygen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103894082A (en) | Gas mixer arranged in gas channel and gas mixing device composed of gas mixer | |
| CN203916479U (en) | Be arranged at gas mixer in gas passage and the gas mixer of composition thereof | |
| CN205598967U (en) | A static mixer for selective catalytic reduction system | |
| CN105289303B (en) | A kind of swirling flow atomizing SCR denitration method and its device | |
| CN206016918U (en) | A kind of carbamide injection mixed cell for cartridge type depurator | |
| CN206016920U (en) | Urea injection mixed cell for diesel engine vent gas post processing | |
| CN103657411A (en) | Vortex mixing device for SCR (silicon controlled rectification) flue gas denitration system | |
| CN103933858B (en) | The double eddy current SCR blender of a kind of tangential | |
| CN203577639U (en) | Swirl mixing device for SCR (selective catalytic reduction) flue gas denitrification system | |
| CN108119211A (en) | A kind of close-coupled mixing arrangement for meeting six discharge standard of Europe | |
| CN205145984U (en) | Board -like SCR denitrating tower of whirl | |
| CN205297699U (en) | Mixing arrangement that admits air of SCR system | |
| CN101306325A (en) | Flue gas even distribution device of selective catalytic reduction reaction denitration reactor | |
| CN206016913U (en) | A kind of swirl vane formula carbamide sprays mixed cell | |
| CN208711397U (en) | Pipe-line mixer and refuse burning system suitable for denitrating flue gas | |
| CN204602015U (en) | A kind of device utilizing orifice plate and vortex board Homogeneous phase mixing flue gas and ammonia | |
| CN101342457A (en) | Flue gas denitrating whirling current mixer and whirling current mixing method | |
| CN102840016A (en) | Tail gas denitration SCR (semiconductor control rectifier) system pipeline assembly of marine high-power diesel engine | |
| CN106194347A (en) | A kind of swirl vane formula carbamide injection mixed cell | |
| CN208122919U (en) | A kind of rotating flow guidance manages the mixing arrangement of horizontal combination with hole | |
| CN101879401B (en) | Reducing agent injection mechanism suitable for SCR reactor | |
| CN211274167U (en) | Flue gas denitration gas-air mixing device | |
| CN206391869U (en) | A kind of SCR denitration system eddy flow chip static mixer | |
| CN205145983U (en) | Rotary -cut formula SCR denitrification facility | |
| CN103816801B (en) | A kind of eddy current opposite-flushing type gas mixer be arranged in gas passage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
| CX01 | Expiry of patent term |