CN205109431U - Venturi formula ammonia blender - Google Patents
Venturi formula ammonia blender Download PDFInfo
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- CN205109431U CN205109431U CN201520912798.7U CN201520912798U CN205109431U CN 205109431 U CN205109431 U CN 205109431U CN 201520912798 U CN201520912798 U CN 201520912798U CN 205109431 U CN205109431 U CN 205109431U
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Abstract
The utility model provides a venturi formula ammonia blender, include: venturi, spout ammonia pipe, circular dispersed baffle and porous breaker plate group, venturi's the minimum department of cross sectional area is choke portion, spout ammonia pipe set up in choke portion, and the axis that spouts ammonia pipe with the axis of choke portion coincides mutually, the tip that spouts the ammonia pipe is for spouting the ammonia mouth, venturi's one end sets up in the export for export, circular dispersed baffle, and just to spouting the ammonia mouth, venturi's export still is connected with the tuber pipe, and porous breaker plate group sets up in the tuber pipe. The utility model discloses utilizing venturi at the choke improvement flue gas velocity of portion, locating to spout into the ammonia at this simultaneously, high -speed flue gas ammonia in coordination forms the efflux in the venturi export to the dispersion takes place to impact circular dispersed baffle, later mix the flue gas porous breaker plate group that flows through again, further mix repeatedly down in the vortex effect, when arrival mixer outlet locates the ammonia the homodisperse among the flue gas.
Description
Technical field
The utility model relates to ammonia blender manufacturing technology, particularly relates to a kind of venturi-type ammonia blender, belongs to denitrating catalyst process equipment manufacturing technology field.
Background technology
Full-scale SCR denitration processing performance evaluation system is a kind of experimental provision for measuring assessment SCR denitration performance indications.Wherein ammonia mixing arrangement is as one of important integral link of system, and its effect evenly spreads among flue gas using the ammonia as reducing agent, to meet the experiment condition of reactor inlet ammonia in flue gas uniform composition dispersion, reaches the accuracy requirement of measurement result.
In prior art, because airduct size in this evaluation system is usually less, shorter from the duct length spray ammonia mouth to reactor inlet, for realizing the dispersed of ammonia in limited mixing apart from interior, therefore need arranging special tubular type ammonia blender.So, need a kind of venturi tube structure in prior art badly and ammonia homodisperse tubular type ammonia mixer structure can be realized in limited distance.
Utility model content
The utility model provides a kind of venturi-type ammonia blender for making ammonia and flue gas can mix fully, uniformly before entering the reactor in full-scale SCR denitration processing performance evaluation system.
The venturi-type ammonia blender that the utility model provides, comprising: Venturi tube, spray ammonia pipe, circular dispersion baffle plate and porous dispersion plate group;
The minimum place of area of section of described Venturi tube is trunnion portion; Described spray ammonia pipe is arranged at described trunnion portion, and the axis of described spray ammonia pipe and the axes coincide in described trunnion portion; The end of described spray ammonia pipe is spray ammonia mouth;
One end of described Venturi tube is outlet, and described circular dispersion baffle plate is arranged in described outlet, and just to described spray ammonia mouth;
The outlet of described Venturi tube is also connected with airduct, and described porous dispersion plate group is arranged in described airduct.
Venturi-type ammonia blender as above, wherein, described porous dispersion plate group comprises: fixed porous plate, and the detachable porous plate of polylith;
Described fixed porous plate is fixed in described airduct, and described fixed porous plate is provided with fixed axis; Axis and the described Venturi axis of described fixed axis coincide;
The detachable porous plate of described polylith is installed on described fixed axis.
Venturi-type ammonia blender as above, wherein, all be arranged in parallel between the detachable porous plate of described polylith.
Venturi-type ammonia blender as above, wherein, the perforate on adjacent two blocks of described detachable porous plates is all not corresponding on the axis direction of described fixed axis.
Venturi-type ammonia blender as above wherein, is Flange joint between described airduct and described Venturi tube.
Venturi-type ammonia blender as above, wherein, the axis perpendicular in described circular dispersion baffle plate and described trunnion portion.
Venturi-type ammonia blender as above, wherein, each described detachable porous plate comprises: disc and sleeve pipe; Described sleeve pipe is arranged at the center of described disc, and described disc is located on described fixed axis by described casing pipe sleeve.
Venturi-type ammonia blender as above, wherein, described circular dispersion baffle plate comprises: circular baffle plate and barrier support;
Described barrier support is fixed on the inwall of described outlet, and described circular baffle plate is fixed on the center of described barrier support.
Venturi-type ammonia blender of the present utility model, utilizes Venturi tube to improve flue gas flow rate in trunnion portion, sprays into ammonia simultaneously at this place.High velocity smoke is worked in coordination with ammonia and is formed jet at Venturi tube back segment, and clashes into circular dispersion baffle plate and disperse, in this flue gas and ammonia generation mixed once; Mixed flue gas flows through porous dispersion plate group more afterwards, repeatedly mixes further under flow-disturbing effect, and when arriving mixer outlet place, ammonia has been dispersed among flue gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of the venturi-type ammonia blender of the utility model embodiment;
Fig. 2 is the enlarged diagram of circular dispersion baffle plate in Fig. 1;
Fig. 3 is the schematic cross-section of Fig. 2;
Fig. 4 is the enlarged diagram of detachable porous plate in Fig. 1;
Fig. 5 is the schematic cross-section of Fig. 4;
Fig. 6 is the enlarged diagram of fixed porous plate in Fig. 1;
Fig. 7 is the schematic cross-section of Fig. 6.
Detailed description of the invention
As shown in Figure 1, the venturi-type ammonia blender that the utility model provides, comprising: Venturi tube 1, spray ammonia pipe 2, circular dispersion baffle plate 3 and porous dispersion plate group.Venturi tube 1 comprises trunnion portion 10 and outlet 11.The minimum place of area of section of described Venturi tube 1 is trunnion portion 10; Described spray ammonia pipe 2 is arranged at described trunnion portion 10, and the axis of described spray ammonia pipe 2 and the axes coincide in described trunnion portion 10; The end of described spray ammonia pipe 2 is spray ammonia mouth.Spray ammonia pipe 2 is generally positioned on the axis of Venturi tube 1, and is positioned at the center in trunnion portion 10.In the venturi-type ammonia blender of the present embodiment, in order to promote dispersion effect, the general axis perpendicular with described trunnion portion 10 of described circular dispersion baffle plate 3.
One end of described Venturi tube 1 is outlet 11, and neck one end of Venturi tube 1 is mixer entrance A.Described circular dispersion baffle plate 3 is arranged in described outlet 11, and just to described spray ammonia mouth; Certain, dispersion baffle plate has perforate or space.
The outlet of described Venturi tube 1 is also connected with airduct 6, and described porous dispersion plate group is arranged in described airduct 6.Generally, as shown in Figure 6 and Figure 7, described porous dispersion plate group comprises: fixed porous plate 5, and the detachable porous plate 4 of polylith; Described fixed porous plate 5 is fixed in described airduct 6, and described fixed porous plate 5 is provided with fixed axis 52; The axis of described fixed axis 52 and described Venturi tube 1 axes coincide; The detachable porous plate of described polylith 4 is installed on described fixed axis 52.Fixed porous plate 5 also comprises fixed disk 51, and fixed axis 52 is arranged on fixed disk 51; The edge of fixed disk 51 is fixedly connected with airduct 6.
In addition, Flange joint is generally between described airduct 6 and described Venturi tube 1.
Venturi-type ammonia blender of the present utility model, in use, flue gas is entered by mixer entrance A, ammonia entered by B and by be arranged in Venturi tube trunnion portion spray ammonia pipe spray after, first clash into circular dispersion baffle plate, then realize after porous dispersion plate group and fully the mixing of flue gas.Concrete, because spray ammonia pipe is arranged at Venturi tube trunnion portion, spray ammonia mouth is positioned at axis place of trunnion portion, and spray ammonia direction is consistent with flue gas flow direction, circular dispersion baffle arrangement in for spraying ammonia mouth position so that disperse after ammonia impingement baffles.Porous dispersion plate group is arranged in circular dispersion baffle plate downstream, and flue gas mixes after flowing through porous dispersion plate group with ammonia, is finally discharged by mixer outlet C.
Venturi-type ammonia blender of the present utility model, owing to adopting single-point spray ammonia form, structure is simply easy to control and regulation.And the jet that venturi is formed adds that circular plate washer disperses, and be aided with the dispersion of porous plate flow-disturbing, multiple dispersal mechanism can guarantee the ammonia mixed effect realizing efficient stable.In addition this apparatus structure is compact, and is connected with airduct by multistage form of flanges, and porous dispersion plate adopts Demountable, is easy to dismounting and maintenance.
At the venturi-type ammonia blender of the present embodiment, further, all be arranged in parallel between the detachable porous plate 4 of described polylith.More preferred, the perforate on adjacent two blocks of described detachable porous plates 4 is all not corresponding on the axis direction of described fixed axis 52.Because the detachable porous plate of polylith is separated by certain spacing to each other, flue gas mixes after flowing through porous plate with ammonia.Meanwhile, in detachable porous plate, the position, duct of adjacent plate body is interlaced, and namely adjacent plate body does not form through hole in same pipeline section position.Further ensure the Homogeneous phase mixing of flue gas like this, further increase mixed effect.
As shown in Figure 5 and Figure 6, in the utility model embodiment, each described detachable porous plate 4 comprises: disc 41 and sleeve pipe 42; Described sleeve pipe 42 is arranged at the center of described disc 41, is generally perpendicular to disc 41; And described disc 41 is set on described fixed axis 52 by described sleeve pipe 42.Greatly facilitate the installation of detachable porous plate 4 like this.
As shown in Figures 2 and 3, in the utility model embodiment, described circular dispersion baffle plate 3 comprises: circular baffle plate 31 and barrier support 32; Described barrier support 32 is fixed on the inwall of described outlet 11, and described circular baffle plate 31 is fixed on the center of described barrier support 32.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (8)
1. a venturi-type ammonia blender, is characterized in that, comprising: Venturi tube, spray ammonia pipe, circular dispersion baffle plate and porous dispersion plate group;
The minimum place of area of section of described Venturi tube is trunnion portion; Described spray ammonia pipe is arranged at described trunnion portion, and the axis of described spray ammonia pipe and the axes coincide in described trunnion portion; The end of described spray ammonia pipe is spray ammonia mouth;
One end of described Venturi tube is outlet, and described circular dispersion baffle plate is arranged in described outlet, and just to described spray ammonia mouth;
The outlet of described Venturi tube is also connected with airduct, and described porous dispersion plate group is arranged in described airduct.
2. venturi-type ammonia blender according to claim 1, is characterized in that, described porous dispersion plate group comprises: fixed porous plate, and the detachable porous plate of polylith;
Described fixed porous plate is fixed in described airduct, and described fixed porous plate is provided with fixed axis; Axis and the described Venturi axis of described fixed axis coincide;
The detachable porous plate of described polylith is installed on described fixed axis.
3. venturi-type ammonia blender according to claim 2, is characterized in that, all be arranged in parallel between the detachable porous plate of described polylith.
4. venturi-type ammonia blender according to claim 3, is characterized in that, the perforate on adjacent two blocks of described detachable porous plates is all not corresponding on the axis direction of described fixed axis.
5., according to the arbitrary described venturi-type ammonia blender of claim 1-4, it is characterized in that, be Flange joint between described airduct and described Venturi tube.
6., according to the arbitrary described venturi-type ammonia blender of claim 1-4, it is characterized in that, the axis perpendicular in described circular dispersion baffle plate and described trunnion portion.
7. venturi-type ammonia blender according to claim 2, is characterized in that, each described detachable porous plate comprises: disc and sleeve pipe; Described sleeve pipe is arranged at the center of described disc, and described disc is located on described fixed axis by described casing pipe sleeve.
8., according to the arbitrary described venturi-type ammonia blender of claim 1-4, it is characterized in that, described circular dispersion baffle plate comprises: circular baffle plate and barrier support;
Described barrier support is fixed on the inwall of described outlet, and described circular baffle plate is fixed on the center of described barrier support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912798.7U CN205109431U (en) | 2015-11-16 | 2015-11-16 | Venturi formula ammonia blender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912798.7U CN205109431U (en) | 2015-11-16 | 2015-11-16 | Venturi formula ammonia blender |
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| Publication Number | Publication Date |
|---|---|
| CN205109431U true CN205109431U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520912798.7U Active CN205109431U (en) | 2015-11-16 | 2015-11-16 | Venturi formula ammonia blender |
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| CN (1) | CN205109431U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289348A (en) * | 2015-11-16 | 2016-02-03 | 国电科学技术研究院 | Venturi tube type ammonia mixer |
| CN114682088A (en) * | 2022-04-02 | 2022-07-01 | 大唐林州热电有限责任公司 | Ejector applied to matrix nozzle |
| CN116036853A (en) * | 2021-10-28 | 2023-05-02 | 中国石油化工股份有限公司 | Flue gas denitration ammonia spraying mixed dust removal equipment and system |
| CN116036853B (en) * | 2021-10-28 | 2024-07-02 | 中国石油化工股份有限公司 | Flue gas denitration ammonia spraying mixed dust removal equipment and system |
-
2015
- 2015-11-16 CN CN201520912798.7U patent/CN205109431U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289348A (en) * | 2015-11-16 | 2016-02-03 | 国电科学技术研究院 | Venturi tube type ammonia mixer |
| CN116036853A (en) * | 2021-10-28 | 2023-05-02 | 中国石油化工股份有限公司 | Flue gas denitration ammonia spraying mixed dust removal equipment and system |
| CN116036853B (en) * | 2021-10-28 | 2024-07-02 | 中国石油化工股份有限公司 | Flue gas denitration ammonia spraying mixed dust removal equipment and system |
| CN114682088A (en) * | 2022-04-02 | 2022-07-01 | 大唐林州热电有限责任公司 | Ejector applied to matrix nozzle |
| CN114682088B (en) * | 2022-04-02 | 2023-08-08 | 大唐林州热电有限责任公司 | Injector applied to matrix nozzle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |