CN201669061U - Static mixer and flue gas denitrification device - Google Patents
Static mixer and flue gas denitrification device Download PDFInfo
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- CN201669061U CN201669061U CN2010201187760U CN201020118776U CN201669061U CN 201669061 U CN201669061 U CN 201669061U CN 2010201187760 U CN2010201187760 U CN 2010201187760U CN 201020118776 U CN201020118776 U CN 201020118776U CN 201669061 U CN201669061 U CN 201669061U
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Abstract
The utility model provides a static mixer and a flue gas denitrification device. The static mixer comprises a cylindrical mixer body and a turbulence component which is fixed on a cylindrical surface of the cylindrical mixer body, wherein the turbulence component is protruded outwards to the direction far away from the cylindrical surface. Since the structure of the static mixer is improved and the outwards protruded turbulence component is additionally arranged on the cylindrical mixer body, turbulence and disturbance of flue gas and mixed gas are enhanced, gas can be mixed uniformly within shorter distance and denitrification efficiency is increased while cost consumption for manufacturing static mixers with complicated structures is reduced.
Description
Technical field
The utility model relates to thermal power generation unit boiler smoke selective catalytic reduction (SCR, SelectiveCatalytic Reduction) gas denitrifying technology field is specifically related to a kind of equipment for denitrifying flue gas of thermal power generation unit boiler smoke selective catalytic reduction and static mixer that this equipment for denitrifying flue gas strengthens turbulent flow, disturbance of being used for.
Background technology
The SCR technology is to use the most ripe at most and effective a kind of gas denitrifying technology at present in the world, its technological principle is generally: spray into ammonia (or urea) and Air mixing gas in the flue gas of uniform temperature, described ammonia or urea are reducing agent, make reducing agent mix mutually with flue gas; Be mixed with the reactor (SCR Benitration reactor) that the flue gas of reducing agent is flowed through catalyst is housed, under the effect of catalyst, reduction reaction takes place and generates harmless nitrogen G﹠W in the NOx in reducing agent and the flue gas, enters atmosphere with flue gas, thereby reaches the effect that removes NOx.Therefore, in the SCR denitration technology, ammonia and flue gas even mix be the influence reaction whether fully, denitration rate and ammonia utilization rate key factor whether up to standard etc., its effect is directly connected to the quality of denitrification apparatus.
At present, the static mixer in the engineering has various ways, the complex structure of good mixing effect, manufacturing cost height; And the mixed effect of static mixer simple in structure is in urgent need to be improved.
The utility model content
Technical problem to be solved in the utility model provides a kind of static mixer and equipment for denitrifying flue gas, by improving the structure of static mixer, make reducing agent and flue gas in certain distance, realize evenly mixing preferably, improve denitration efficiency, and reduce the engineering cost of static mixer.
For solving the problems of the technologies described above, the utility model provides scheme as follows:
A kind of static mixer comprises:
The blender main body of one cylindrical structure; With
Be fixed on the flow-disturbing parts on the face of cylinder of described cylindrical structure;
Wherein, described flow-disturbing parts are towards the direction away from the described face of cylinder, to outer lug.
Preferably, in the above-mentioned static mixer, described flow-disturbing parts have a plurality of, and evenly are installed on the described face of cylinder.
Preferably, in the above-mentioned static mixer,
Described flow-disturbing parts are the triangle wing-shaped structure, and described triangle wing-shaped structure is that the outer convex arc surface by two fins and the described face of cylinder forms.
Preferably, in the above-mentioned static mixer, the angle between two described fins is that 60 degree are to 120 degree.
The utility model also provides a kind of equipment for denitrifying flue gas based on selective catalytic reduction, comprising:
Be used to spray the gaseous mixture input block of the gaseous mixture that includes reducing agent;
Be used for static mixer that described reducing agent is mixed with the flue gas of flue;
Be used to utilize catalyst the flue gas that is mixed with described reducing agent to be carried out the Benitration reactor of reduction reaction;
Wherein, described static mixing implement body comprises:
The blender main body of one cylindrical structure, the axis normal of described cylindrical structure in described flue gas come to; With
Be fixed on the flow-disturbing parts on the face of cylinder of described cylindrical structure;
Wherein, described flow-disturbing parts are towards the direction away from the described face of cylinder, to outer lug.
Preferably, in the above-mentioned equipment for denitrifying flue gas, described flow-disturbing parts have a plurality of, and evenly are installed on the described face of cylinder.
Preferably, in the above-mentioned equipment for denitrifying flue gas,
Described flow-disturbing parts are the triangle wing-shaped structure, and described triangle wing-shaped structure is that the outer convex arc surface by two fins and the described face of cylinder forms.
Preferably, in the above-mentioned equipment for denitrifying flue gas, the angle between two described fins is that 60 degree are to 120 degree.
Preferably, in the above-mentioned equipment for denitrifying flue gas,
Described flow-disturbing parts have three; Wherein, on the described cylindrical structure back to described flue gas come to lee face on the first flow-disturbing parts are installed, above the described cylindrical structure to described flue gas come to the windward side on the second flow-disturbing parts and the 3rd flow-disturbing parts are installed;
On the cross section of described static mixer, first line be parallel to described flue gas come to; The angular bisector of the angle that second line and the 3rd line form, be parallel to described flue gas come to; Wherein, described first line, second line, the 3rd line are respectively the lines in the center of circle of the dalta wing angle summit of the described first flow-disturbing parts, the second flow-disturbing parts, the 3rd flow-disturbing parts and described cylindrical structure cross section.
From the above as can be seen, static mixer that the utility model provides and equipment for denitrifying flue gas, by improving the structure of static mixer, increase the flow-disturbing parts, thereby the turbulent flow and the disturbance of flue gas and gaseous mixture have been strengthened, make gas can in than short distance, reach even mixing, improved denitration efficiency, reduced the cost consumption that static mixer brought of manufacturing structure complexity simultaneously.
Description of drawings
The side view of the static mixer that Fig. 1 is provided for the utility model embodiment;
Fig. 2 is the structural representation of the described blender main body of the utility model embodiment;
Fig. 3 is a kind of structural representation of the described flow-disturbing parts of the utility model embodiment;
Fig. 4 is the cross sectional representation of the described static mixer of the utility model embodiment;
Fig. 5 is the another kind of structural representation of the described flow-disturbing parts of the utility model embodiment;
Fig. 6 is the cross sectional representation of the static mixer in the described equipment for denitrifying flue gas of the utility model embodiment.
The specific embodiment
The utility model provides a kind of static mixer and equipment for denitrifying flue gas, improve by structure static mixer, improved the mixed effect of reducing agent and flue gas, and static mixer of the present utility model is simple in structure, much smaller than the static mixer of other labyrinths, help industry and promote on its engineering cost.Below with reference to accompanying drawing, the utility model is described further by specific embodiment.
Please refer to Fig. 1, the static mixer that present embodiment provided includes:
The blender main body 11 of one cylindrical structure; With
Be fixed on the flow-disturbing parts 12 on the face of cylinder of described cylindrical structure, wherein, described flow-disturbing parts 12 are towards the direction away from the described face of cylinder, to outer lug.
3 flow-disturbing parts 12 are installed on the static mixer shown in Figure 1 altogether.The number of the parts of flow-disturbing described in the present embodiment is not construed as limiting the utility model, and the quantity of described flow-disturbing parts can be 1,2 or a plurality of, when a plurality of described flow-disturbing parts are arranged, these flow-disturbing parts evenly is installed on the described face of cylinder.As preferred embodiment, the number of described flow-disturbing parts is 3～5.
Fig. 2～3 show the structure after the decomposition of static mixer respectively, wherein Figure 2 shows that blender main body 11, and it is a cylindrical structure, and the cross section 111 of this cylindrical structure is a circle, and this cylindrical structure also comprises an outer convex arc surface 112.Also show the axis 110 of cylindrical structure among Fig. 2.Shown in Figure 3 is flow-disturbing parts 12, and these flow-disturbing parts 12 are the triangle wing-shaped structure, by the fin 121 and 122 of two identical sizes, with outer convex arc surface 112 formation on the described face of cylinder.These two fins are installed on the outer convex arc surface 112, thereby form the structure to outer lug.
Fig. 4 has further provided the schematic diagram of the cross section of static mixer shown in Figure 1.In the present embodiment, on the cross section of static mixer, the included angle A between two fins of flow-disturbing parts be 60 degree to 120 degree, the central angle B that two fins are covered in the circular arc on the cylindrical circular cross section 60 to 120 spends.Described included angle A is exactly the angle of two straight flanges on the triangle wing-shaped structure cross section, and described included angle B is exactly the central angle of the interior concave arc on the triangle wing-shaped structure cross section.
The parts of flow-disturbing described in the utility model are not limited to the triangle wing-shaped structure, and for example, the cross sectional shape that can also be flow-disturbing parts as shown in Figure 5 is the structure that is arc-shaped convex, can also be other structures toward outer lug, illustrate no longer one by one here.Flow-disturbing parts shown in Figure 5 are an outer convex arc surface 51, and this outer convex arc surface 51 is installed on the cylindrical face of cylinder, thereby form the structure that outwards forms projection.
Above embodiment has changed the level and smooth surface of static mixer by the flow-disturbing parts toward outer lug are set on the blender main body, it is coarse to make it to seem, this structure helps strengthening the turbulent extent of flue gas or ammonia, accelerates the diffusion velocity of flue gas or ammonia simultaneously.
Based on above-described static mixer, present embodiment also provides a kind of equipment for denitrifying flue gas based on selective catalytic reduction, and this equipment for denitrifying flue gas comprises:
Be used to spray the gaseous mixture input block of the gaseous mixture that includes reducing agent;
Be used for static mixer that described reducing agent is mixed with the flue gas of flue;
Be used to utilize catalyst the flue gas that is mixed with described reducing agent to be carried out the Benitration reactor of reduction reaction;
Wherein, described static mixer is fixed in and is used to export among the flue of flue gas, specifically comprises:
The blender main body of one cylindrical structure, the axis normal of described cylindrical structure in described flue gas come to; With
Be fixed on the flow-disturbing parts on the face of cylinder of described cylindrical structure;
Wherein, described flow-disturbing parts are towards the direction away from the described face of cylinder, to outer lug.
In this equipment for denitrifying flue gas, the structure of gaseous mixture input block and Benitration reactor can be same as the prior art, repeats no more herein; Flow-disturbing parts in the described static mixer have a plurality of, and evenly are installed on the face of cylinder of described cylindrical structure.
Concrete, described flow-disturbing parts can be the triangle wing-shaped structure, described triangle wing-shaped structure is formed by the fin of two identical sizes and the outer convex arc surface on the described face of cylinder.Angle between two described fins be 60 degree to 120 degree, described in the central angle of circular arc of concaved circular cambered surface be that 60 degree are to 120 degree.As preferred embodiment, described flow-disturbing parts are 3, and the cross section of described flow-disturbing parts includes concave arc in first straight flange, second straight flange and.Described first straight flange is perpendicular to described second straight flange, and the length of described first straight flange and second straight flange is the radius of circular cross section of 0.707 times described cylindrical structure.Certainly, described flow-disturbing parts can also be the structures of other evagination, for example can be the structures that cross section is arc-shaped convex.
As shown in Figure 6, when described flow-disturbing parts have three, in the described equipment for denitrifying flue gas of present embodiment, preferably come back to flue gas on the described cylindrical structure to lee face on the first flow-disturbing parts 21 are installed, above the described cylindrical structure to flue gas come to the windward side on the second flow-disturbing parts 22 and the 3rd flow-disturbing parts 23 are installed.On the cross section of described static mixer, first line 31 be parallel to described flue gas come to; The angular bisector 34 of the angle that second line 32 and the 3rd line 33 form, also be parallel to described flue gas come to; Wherein, described first line 31, second line 32, the 3rd line 33 are respectively the lines in the center of circle of the dalta wing angle summit of the described first flow-disturbing parts 21, the second flow-disturbing parts 22, the 3rd flow-disturbing parts 23 and described cylindrical structure cross section 20.
The foregoing description increases the flow-disturbing parts of three triangle wing-shaped structures on static mixer.On the one hand, the adding of flow-disturbing parts can strengthen flue gas or include the turbulent extent of the gaseous mixture of reducing agent, accelerates the diffusion velocity of flue gas or gaseous mixture simultaneously; On the other hand, the static mixer windward side is two dalta wings, lee face is the structure of a slice dalta wing, make and produce eddy current at the dalta wing top end when gaseous mixture or flue gas are flowed through the windward side, and lee face place pressure is lower than windward side pressure, thus quickened gaseous mixture or flue gas in the windward side formed eddy current from the windward side to the motion and the diffusion of lee face; Moreover the static mixer windward side is two dalta wings, and lee face is the structural configuration of a slice dalta wing, can also effectively reduce the accumulation of flying dust on blender in the flue, reduces the gravity load that dust stratification forms static mixer on the blender; At last, the static mixer of this process improved form and equipment for denitrifying flue gas help industry and promote at the static mixer and the equipment for denitrifying flue gas of engineering cost far below other complex forms.
In sum, equipment for denitrifying flue gas that the utility model provides and static mixer, by improving the structure of static mixer, the turbulent flow and the disturbance of flue gas and gaseous mixture have been strengthened, make gas can in than short distance, reach even mixing, thereby can improve denitration efficiency, reduce the cost consumption that static mixer brought of manufacturing structure complexity simultaneously.
The above only is an embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a static mixer is characterized in that, comprising:
The blender main body of one cylindrical structure; With
Be fixed on the flow-disturbing parts on the face of cylinder of described cylindrical structure;
Wherein, described flow-disturbing parts are towards the direction away from the described face of cylinder, to outer lug.
2. static mixer according to claim 1 is characterized in that, described flow-disturbing parts have a plurality of, and evenly are installed on the described face of cylinder.
3. static mixer according to claim 1 and 2 is characterized in that,
Described flow-disturbing parts are the triangle wing-shaped structure, and described triangle wing-shaped structure is that the outer convex arc surface by two fins and the described face of cylinder forms.
4. static mixer according to claim 3 is characterized in that, the angle between two described fins is that 60 degree are to 120 degree.
5. equipment for denitrifying flue gas based on selective catalytic reduction comprises:
Be used to spray the gaseous mixture input block of the gaseous mixture that includes reducing agent;
Be used for static mixer that described reducing agent is mixed with the flue gas of flue;
Be used to utilize catalyst the flue gas that is mixed with described reducing agent to be carried out the Benitration reactor of reduction reaction;
It is characterized in that described static mixing implement body comprises:
The blender main body of one cylindrical structure, the axis normal of described cylindrical structure in described flue gas come to; With
Be fixed on the flow-disturbing parts on the face of cylinder of described cylindrical structure;
Wherein, described flow-disturbing parts are towards the direction away from the described face of cylinder, to outer lug.
6. equipment for denitrifying flue gas according to claim 5 is characterized in that, described flow-disturbing parts have a plurality of, and evenly are installed on the described face of cylinder.
7. according to claim 5 or 6 described equipment for denitrifying flue gas, it is characterized in that,
Described flow-disturbing parts are the triangle wing-shaped structure, and described triangle wing-shaped structure is that the outer convex arc surface by two fins and the described face of cylinder forms.
8. equipment for denitrifying flue gas according to claim 7 is characterized in that, the angle between two described fins is that 60 degree are to 120 degree.
9. equipment for denitrifying flue gas according to claim 7 is characterized in that,
Described flow-disturbing parts have three; Wherein, on the described cylindrical structure back to described flue gas come to lee face on the first flow-disturbing parts are installed, above the described cylindrical structure to described flue gas come to the windward side on the second flow-disturbing parts and the 3rd flow-disturbing parts are installed;
On the cross section of described static mixer, first line be parallel to described flue gas come to; The angular bisector of the angle that second line and the 3rd line form, be parallel to described flue gas come to; Wherein, described first line, second line, the 3rd line are respectively the lines in the center of circle of the dalta wing angle summit of the described first flow-disturbing parts, the second flow-disturbing parts, the 3rd flow-disturbing parts and described cylindrical structure cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201187760U CN201669061U (en) | 2010-02-24 | 2010-02-24 | Static mixer and flue gas denitrification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201187760U CN201669061U (en) | 2010-02-24 | 2010-02-24 | Static mixer and flue gas denitrification device |
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| Publication Number | Publication Date |
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| CN201669061U true CN201669061U (en) | 2010-12-15 |
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| CN2010201187760U Expired - Lifetime CN201669061U (en) | 2010-02-24 | 2010-02-24 | Static mixer and flue gas denitrification device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877837A (en) * | 2014-02-26 | 2014-06-25 | 中国科学院过程工程研究所 | Flue ozone distributor applied to low-temperature oxidation denitration technology and arrangement manner thereof |
| CN105381715A (en) * | 2015-12-15 | 2016-03-09 | 浙江百能科技有限公司 | Counter-current ammonia spraying mixer |
| CN109432978A (en) * | 2018-12-28 | 2019-03-08 | 启明星宇节能科技股份有限公司 | A kind of denitration flue gas disturbance device |
| CN113144896A (en) * | 2021-01-26 | 2021-07-23 | 成都易态科技有限公司 | Flue gas dust removal and denitration device |
-
2010
- 2010-02-24 CN CN2010201187760U patent/CN201669061U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877837A (en) * | 2014-02-26 | 2014-06-25 | 中国科学院过程工程研究所 | Flue ozone distributor applied to low-temperature oxidation denitration technology and arrangement manner thereof |
| WO2015127707A1 (en) * | 2014-02-26 | 2015-09-03 | 中国科学院过程工程研究所 | Flue ozone distributor applied in low-temperature oxidation denitrification technology and arrangement manner thereof |
| CN103877837B (en) * | 2014-02-26 | 2016-01-27 | 中国科学院过程工程研究所 | A kind of flue ozone distributor and arrangement thereof being applied to low-temperature oxidation denitration technology |
| JP2017509474A (en) * | 2014-02-26 | 2017-04-06 | 中国科学院過程工程研究所 | Flue ozone distributor for low-temperature oxidative denitration and its arrangement |
| US10507427B2 (en) | 2014-02-26 | 2019-12-17 | Institute Of Process Engineering, Chinese Academy Of Sciences | Flue ozone distributor applied in low-temperature oxidation denitrification technology and arrangement manner thereof |
| CN105381715A (en) * | 2015-12-15 | 2016-03-09 | 浙江百能科技有限公司 | Counter-current ammonia spraying mixer |
| CN109432978A (en) * | 2018-12-28 | 2019-03-08 | 启明星宇节能科技股份有限公司 | A kind of denitration flue gas disturbance device |
| CN113144896A (en) * | 2021-01-26 | 2021-07-23 | 成都易态科技有限公司 | Flue gas dust removal and denitration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA DATANG GROUP ENVIROMENTAL TECHNOLOGY CO., LT Free format text: FORMER OWNER: CHINA DATANG TECHNOLOGIES + ENGINEERING CO., LTD. Effective date: 20120720 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120720 Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: CHINA DATANG GROUP ENVIRONMENT TECHNOLOGY CO.,LTD. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: China Datang Technologies & Engineering Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG ENVIRONMENT INDUSTRY GROUP Co.,Ltd. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: DATANG TECHNOLOGY INDUSTRY Co.,Ltd. Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG TECHNOLOGY INDUSTRY Co.,Ltd. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: CHINA DATANG GROUP ENVIRONMENT TECHNOLOGY CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20101215 |
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| CX01 | Expiry of patent term |