CN204746055U - Ammonia injection grid for denitrification facility - Google Patents
Ammonia injection grid for denitrification facility Download PDFInfo
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- CN204746055U CN204746055U CN201520389696.1U CN201520389696U CN204746055U CN 204746055 U CN204746055 U CN 204746055U CN 201520389696 U CN201520389696 U CN 201520389696U CN 204746055 U CN204746055 U CN 204746055U
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- ammonia
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- house steward
- spray ammonia
- spout
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Abstract
The utility model discloses an ammonia injection grid for denitrification facility, spout the ammonia branch pipe including spouting the ammonia house steward and assembling on the flue body, wherein, spout the ammonia house steward and spout the ammonia branch pipe and be linked together with at least two through the connecting pipe, spout the ammonia branch pipe on evenly distributed have the ammonia nozzle, spout the ammonia branch pipe and wear to arrange in on the flue body, be provided with the governing valve on the connecting pipe respectively, the both ends cross -over connection of governing valve has the differential gauge, and the governing valve links mutually. During the use, the mist of ammonia and air flows into ammonia injection grid from spout the ammonia house steward, spouts the ammonia branch pipe through the connecting pipe reposition of redundant personnel to each to finally blow out from the ammonia nozzle, each governing valve that links is mutually adjusted according to the pressure differential of the governing valve both sides that the differential gauge recorded to the in -process, only through differential gauge alright adjust in order to accomplish, simple structure, it is convenient to adjust.
Description
Technical field
The utility model relates to environmental technology field, particularly relates to denitration technology, and referring in particular to is a kind of denitrification apparatus ammonia-spraying grid.
Background technology
Current denitration technology is widely used in countries such as Japan, the U.S., Germany, South Africa, Qatar, Brazil, Holland.Although China's electric power enterprise, under the pressure reduced discharging, adopts denitration technology on a large scale.But they are different with petroleum chemical industry denitration technology from oil refining, still have bigger difference, with power-plant flue gas denitration ratio, some particular/special requirement of petrochemical industry denitrating flue gas: is that flue gas contains Fine catalyst dust granules, two is keep low pressure drop under high dust atmosphere, and three is the requirements meeting longtime running.In denitrating system design, the abundant mixing of ammonia and nitrogen oxide is crucial factor, mixing is uneven there will be lower denitration rate or higher escape ammonia amount, therefore needs one ammonia and flue gas fully can be mixed, to ensure the denitrification apparatus of nitrogen oxide emission or escape ammonia amount.
Ammonia-spraying grid is the important component part in denitrification apparatus, current ammonia-spraying grid has two kinds of design concepts, one is that ammonia-spraying grid has maximum regulating power, namely ammonia spraying amount can regulate according to the nitrous oxides concentration of each nozzle location, thus reaches the complete Homogeneous phase mixing of ammonia and flue gas; But it is synchronous to ensure it and flue gas load and technique change that this kind of ammonia-spraying grid operating personnel regularly must adjust ammonia-spraying grid, and in addition due to the increase of valve, instrument and pipeline, its cost of investment also increases.Another kind is the complete Homogeneous phase mixing being ensured ammonia and flue gas by flux modification device and computer fluid simulation technology, but this method must can make flue gas reach mixed uniformly ability by guaranteed flow means for correcting.Therefore, all there is shortcoming in their structure, requires further improvement.
Summary of the invention
Technical problem to be solved in the utility model is the present situation for prior art, provides structure simple, easy to make, regulates simple, can make the well-mixed a kind of denitrification apparatus ammonia-spraying grid of gas.
The utility model solves the problems of the technologies described above adopted technical scheme:
A kind of denitrification apparatus ammonia-spraying grid, the spray ammonia arm including spray ammonia house steward and be assemblied on flue body, wherein, spray ammonia house steward is sprayed ammonia arm by tube connector be connected with at least two, spray ammonia arm is evenly distributed with ammonia nozzle, and spray ammonia arm is placed through on described flue body, and tube connector is respectively arranged with control valve, the two ends cross-over connection of control valve has differential manometer, and control valve is connected.
For optimizing technique scheme, the concrete measure taked also comprises:
The number of above-mentioned spray ammonia arm is 2 to 10, and every root spray ammonia arm is provided with 2 to 10 ammonia nozzles.
Above-mentioned spray ammonia arm is arranged side by side, horizontal distribution.
The two ends of above-mentioned spray ammonia arm are respectively arranged with fixed sleeving and mounting sleeve, and fixed sleeving and mounting sleeve are inserted on described flue body.
One end of above-mentioned tube connector is provided with bent portion, and this bent portion is connected by flange and described mounting sleeve.
Above-mentioned spray ammonia house steward is vertically arranged, and tube connector is vertical with described spray ammonia house steward to be arranged.
Above-mentioned flue body is columnar structured.
Compared with prior art, a kind of denitrification apparatus ammonia-spraying grid of the utility model, include spray ammonia house steward, the spray ammonia arm being evenly distributed with ammonia nozzle is connected with spray ammonia house steward by tube connector, tube connector is respectively arranged with control valve, the two ends cross-over connection of control valve has differential manometer, and control valve is connected.During use, the mist of ammonia and air flows into ammonia-spraying grid from spraying ammonia house steward, branched in each spray ammonia arm by tube connector, and finally spray from ammonia nozzle, the pressure differential of the control valve both sides recorded according to differential manometer in process regulates each control valve be connected; Just can complete adjustment by means of only a differential manometer, structure is simple, easy to adjust.
In addition, the two ends of spray ammonia arm are respectively arranged with fixed sleeving and mounting sleeve, the setting party of fixed sleeving and mounting sleeve the installation of spray ammonia arm, improve efficiency of assembling.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the top view of Fig. 2;
Fig. 5 is the rearview of Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
Embodiment as shown in Figures 1 to 5,
Figure grade illustrates: flue body 1, spray ammonia house steward 2, spray ammonia arm 3, ammonia nozzle 3a, tube connector 4, bent portion 4a, control valve 5, differential manometer 6, fixed sleeving 7, mounting sleeve 8, flange 9.
As shown in Figures 1 to 5,
A kind of denitrification apparatus ammonia-spraying grid of the utility model, the spray ammonia arm 3 including spray ammonia house steward 2 and be assemblied on flue body 1, wherein, spray ammonia house steward 2 is sprayed ammonia arm 3 by tube connector 4 be connected with at least two, spray ammonia arm 3 is evenly distributed with ammonia nozzle 3a, and spray ammonia arm 3 is placed through on described flue body 1, tube connector 4 is respectively arranged with control valve 5, the two ends cross-over connection of control valve 5 has differential manometer 6, and control valve 5 is connected.
In embodiment, the number of spray ammonia arm 3 is 2 to 10, and every root spray ammonia arm 3 is provided with 2 to 10 ammonia nozzle 3a.
In embodiment, arranged side by side, the horizontal distribution of spray ammonia arm 3.
Spray ammonia house steward 2 is sprayed ammonia arm 3 be connected with many, and every root spray ammonia arm 3 is evenly distributed with multiple ammonia nozzle 3a, by the shunting of spray ammonia arm 3, the object that ammonia evenly sprays can be reached, ammonia is fully mixed with nitrogen oxide, thus improve the utilization rate of ammonia and the removal efficiency of nitrogen oxide, and the escape of ammonia can be prevented.
Spacing between each ammonia nozzle 3a is identical, and make sprayed ammonia more even, effect is better.
Ammonia nozzle 3a is arranged towards the flow direction of flue gas in flue, and the nitrogen oxide containing gas subtend namely from the ammonia and flue of ammonia nozzle 3a ejection flows, thus ammonia is fully mixed with nitrogen oxide containing gas.
In embodiment, the two ends of spray ammonia arm 3 are respectively arranged with fixed sleeving 7 and mounting sleeve 8, and fixed sleeving 7 and mounting sleeve 8 are inserted on described flue body 1.
Fixed sleeving 7 and mounting sleeve 8 are set, the easier for installation of spray ammonia arm 3 can be made, the efficiency of assembling of ammonia-spraying grid can be improved.
In embodiment, one end of tube connector 4 is provided with bent portion 4a, and this bent portion 4a is connected by flange 9 and described mounting sleeve 8.Adopt flange 9 to connect, structure is simple, and stable connection, also facilitates the dismounting of tube connector 4 during maintenance.
In embodiment, spray ammonia house steward 2 is vertically arranged, and tube connector 4 is vertical with described spray ammonia house steward 2 to be arranged.
In embodiment, flue body 1 is columnar structured.
Operation principle:
The mist of ammonia and air flows into ammonia-spraying grid from spraying ammonia house steward 2, is branched in each spray ammonia arm 3, and finally spray from ammonia nozzle 3a by tube connector 4.
Each control valve 5 on the spray ammonia arm 3 of this ammonia-spraying grid is connected, thus the aperture of each control valve 5 is consistent, and then makes the pressure differential of each spray ammonia arm 3 control valve 5 both sides keep identical; And by two ends cross-over connection one differential manometer 6 at control valve 5, record the pressure differential of control valve 5 both sides by means of only a differential manometer 6, regulate each control valve 5 be connected, structure is simple, easy to adjust.
Most preferred embodiment of the present utility model is illustrated, and the various change made by those of ordinary skill in the art or remodeling all can not depart from scope of the present utility model.
Claims (7)
1. a denitrification apparatus ammonia-spraying grid, the spray ammonia arm (3) including spray ammonia house steward (2) and be assemblied on flue body (1), it is characterized in that: described spray ammonia house steward (2) is sprayed ammonia arm (3) by tube connector (4) be connected with at least two, described spray ammonia arm (3) is evenly distributed with ammonia nozzle (3a), described spray ammonia arm (3) is placed through on described flue body (1), described tube connector (4) is respectively arranged with control valve (5), the two ends cross-over connection of control valve (5) has differential manometer (6), described control valve (5) is connected.
2. a kind of denitrification apparatus ammonia-spraying grid according to claim 1, is characterized in that: the number of described spray ammonia arm (3) is 2 to 10, and every root spray ammonia arm (3) is provided with 2 to 10 ammonia nozzles (3a).
3. a kind of denitrification apparatus ammonia-spraying grid according to claim 2, is characterized in that: described spray ammonia arm (3) is arranged side by side, horizontal distribution.
4. a kind of denitrification apparatus ammonia-spraying grid according to claim 3, it is characterized in that: the two ends of described spray ammonia arm (3) are respectively arranged with fixed sleeving (7) and mounting sleeve (8), and described fixed sleeving (7) and mounting sleeve (8) are inserted on described flue body (1).
5. a kind of denitrification apparatus ammonia-spraying grid according to claim 4, it is characterized in that: one end of described tube connector (4) is provided with bent portion (4a), this bent portion (4a) is connected by flange (9) and described mounting sleeve (8).
6. a kind of denitrification apparatus ammonia-spraying grid according to claim 5, is characterized in that: described spray ammonia house steward (2) is vertically arranged, and described tube connector (4) is vertical with described spray ammonia house steward (2) to be arranged.
7. a kind of denitrification apparatus ammonia-spraying grid according to claim 6, is characterized in that: described flue body (1) is for columnar structured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520389696.1U CN204746055U (en) | 2015-06-09 | 2015-06-09 | Ammonia injection grid for denitrification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520389696.1U CN204746055U (en) | 2015-06-09 | 2015-06-09 | Ammonia injection grid for denitrification facility |
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| Publication Number | Publication Date |
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| CN204746055U true CN204746055U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520389696.1U Active CN204746055U (en) | 2015-06-09 | 2015-06-09 | Ammonia injection grid for denitrification facility |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311959A (en) * | 2015-12-09 | 2016-02-10 | 光大环保（中国）有限公司 | Ammonia spraying grid for low-temperature SCR denitrification system |
| CN106422771A (en) * | 2016-11-04 | 2017-02-22 | 中冶焦耐(大连)工程技术有限公司 | Ammonia spraying structural body |
| CN110614030A (en) * | 2019-09-25 | 2019-12-27 | 安徽国能亿盛环保科技有限公司 | Low-consumption carbon-based catalytic desulfurization and denitrification device for flue gas purification |
| CN111677885A (en) * | 2020-06-19 | 2020-09-18 | 沈阳山水原环保科技有限公司 | Flow regulating electric valve of ammonia spraying branch pipe |
-
2015
- 2015-06-09 CN CN201520389696.1U patent/CN204746055U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311959A (en) * | 2015-12-09 | 2016-02-10 | 光大环保（中国）有限公司 | Ammonia spraying grid for low-temperature SCR denitrification system |
| CN106422771A (en) * | 2016-11-04 | 2017-02-22 | 中冶焦耐(大连)工程技术有限公司 | Ammonia spraying structural body |
| CN110614030A (en) * | 2019-09-25 | 2019-12-27 | 安徽国能亿盛环保科技有限公司 | Low-consumption carbon-based catalytic desulfurization and denitrification device for flue gas purification |
| CN111677885A (en) * | 2020-06-19 | 2020-09-18 | 沈阳山水原环保科技有限公司 | Flow regulating electric valve of ammonia spraying branch pipe |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315207 No. 1368 East Luo Luo Road, Zhenhai Town, Zhejiang, Ningbo Patentee after: Ningbo Liantong Equipment Manufacturing Co., Ltd. Address before: 315207 Ningbo connection equipment manufacturing Co., Ltd., 1368, Luo Dong Road, Zhenhai Town, Zhejiang, Ningbo Patentee before: Ningbo Liantong Equipment Manufacturing Co., Ltd. |