CN202900381U - Gas mixing device of tail gas denitration semiconductor control rectifier (SCR) system of high-power diesel engine for ship - Google Patents
Gas mixing device of tail gas denitration semiconductor control rectifier (SCR) system of high-power diesel engine for ship Download PDFInfo
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- CN202900381U CN202900381U CN201220513248.4U CN201220513248U CN202900381U CN 202900381 U CN202900381 U CN 202900381U CN 201220513248 U CN201220513248 U CN 201220513248U CN 202900381 U CN202900381 U CN 202900381U
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- guide plate
- tail gas
- flow guide
- diesel engine
- mixing device
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Abstract
The utility model relates to a gas mixing device of a tail gas denitration semiconductor control rectifier (SCR) system of a high-power diesel engine for a ship. The gas mixing device comprises a gas inlet pipeline and a set of mixing device, wherein the set of mixing device is formed by combining two independent mixers, and the two independent mixers are arranged in parallel in the gas inlet pipeline. One independent mixer comprises a ring body and a first flow guide plate, a second flow guide plate, a third flow guide plate, a fourth flow guide plate, a fifth flow guide plate and a sixth flow guide plate which are embedded into the ring body in a mutual parallel mode. The front parts of the second, third, fourth and fifth flow guide plates are protruded respectively and provided with spoiler fins, and a rear protruded flow guide vane is arranged on each of the rear parts of the second, third, fourth and fifth flow guide plates; and the sixth flow guide plate is provided with a front protruded spoiler, a spoiler fin and a rear protruded spoiler. By adopting the gas mixing device, the mixing uniformity can be improved; and the defect of insufficient mixing of tail gas and urea before reaction is thoroughly overcome, so that the contact surface between the tail gas and the urea is ensured and the purification efficiency of the tail gas is improved.
Description
Technical field
The utility model relates to a kind of Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement, and especially a kind of mixing efficiency that improves tail gas and urea in the diesel engine exhaust gas purification device that relates to is avoided the device of urea crystals.
Background technique
Conventional diesel engine exhaust gas purification device has does not have this mixing arrangement, but by lengthening pipeline or increasing tail gas and the mixability of urea, this mode lengthens pipeline has at first increased cost, in addition, long pipeline has increased the loss of exhaust temperature, easily make urea produce crystallization, thereby affect the efficient of tail gas clean-up.What mixing arrangement was housed in addition also is the single-stage turbomixer, and such mixer can only be used in the exhaust environment of pipe with small pipe diameter, when being applied to the Large Diameter Pipeline environment of high-power diesel engine, the urea sedimentation can occur, mix the phenomenons such as inhomogeneous.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, a kind of Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement is provided, this gas mixer can be in the situation that practice every conceivable frugality cost and the loss of minimizing tail gas temperature, tail gas and urea are fully mixed, increase their surface of contact, improve the device of its transformation efficiency.
The technological scheme that provides according to the utility model, Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement comprises air inlet pipeline, one group of mixing arrangement, described one group of mixing arrangement by two independently mixer combine, described two independently mixer be installed in parallel in the air inlet pipeline.
As further improvement of the utility model, described two independently mixer structure is identical, one of them independently mixer comprise cirque body, the first guide plate, the second guide plate, the 3rd guide plate, the 4th guide plate, the 5th guide plate, the 6th guide plate; What the first guide plate, the second guide plate, the 3rd guide plate, the 4th guide plate, the 5th guide plate, the 6th guide plate were parallel to each other is embedded in the cirque body, and length is different between the first guide plate, the second guide plate, the 3rd guide plate, the 4th guide plate, the 5th guide plate, the 6th guide plate.
As further improvement of the utility model, described the first guide plate front end is outstanding, is provided with the flow-disturbing fin on the first guide plate.
As further improvement of the utility model, described the second guide plate front end is outstanding, is provided with flow-disturbing fin and processus aboralis guide plate on the second guide plate.
As further improvement of the utility model, described the 3rd guide plate front end is outstanding, is provided with flow-disturbing fin and processus aboralis guide plate on the 3rd guide plate.
As further improvement of the utility model, described the 4th guide plate front end is outstanding, is provided with flow-disturbing fin and processus aboralis guide plate on the 4th guide plate.
As further improvement of the utility model, described the 5th guide plate front end is outstanding, is provided with flow-disturbing fin and processus aboralis guide plate on the 5th guide plate.
As further improvement of the utility model, described the 6th guide plate front end is outstanding, is provided with flow-disturbing fin, front prominent spoiler and processus aboralis spoiler on the 6th guide plate.
Compared with the prior art the utility model has the following advantages:
The utility model structure is relatively simple, compact, rationally; Adopt and seethe up and down mixing, be fit to the Large Diameter Pipeline multiphase flow and mix; By two mixer superpositions, carry out two-stage and mix, strengthen tail gas in the mixed effect of urea, make gas by the time upset its flow direction, it is fully mixed with urea; Easily manufactured, practicality is easily gone; Thoroughly having solved tail gas and urea can not well-mixed drawback before reaction, thereby has guaranteed the surface of contact of tail gas and urea, has improved tail gas clean-up efficient.
Description of drawings
Fig. 1 is mounting arrangement schematic diagram in the utility model air inlet pipeline.
Fig. 2 is the utility model schematic perspective view.
Fig. 3 is the utility model the first deflector structure schematic diagram.
Fig. 4 is the utility model the second deflector structure schematic diagram.
Fig. 5 is the utility model the 3rd deflector structure schematic diagram.
Fig. 6 is the utility model the 4th deflector structure schematic diagram.
Fig. 7 is the utility model the 5th deflector structure schematic diagram.
Fig. 8 is the utility model the 6th deflector structure schematic diagram.
Embodiment
Following the utility model is further described in connection with the embodiment in the accompanying drawing:
As shown in Figure 1, comprise that Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement comprises air inlet pipeline 1, one group of mixing arrangement 2, described one group of mixing arrangement 2 by two independently mixer combine, described two independently mixer be installed in parallel in mounting hole 3 places of air inlet pipeline 1.
Shown in Fig. 2～8 figure, described two independently mixer structure is identical, one of them independently mixer comprise cirque body 4, the first guide plate 5, the second guide plate 6, the 3rd guide plate 7, the 4th guide plate 8, the 5th guide plate 9, the 6th guide plate 10; What the first guide plate 5, the second guide plate 6, the 3rd guide plate 7, the 4th guide plate 8, the 5th guide plate 9, the 6th guide plate 10 were parallel to each other is embedded in the cirque body 4, and length is different between the first guide plate 5, the second guide plate 6, the 3rd guide plate 7, the 4th guide plate 8, the 5th guide plate 9, the 6th guide plate 10.
Described the first guide plate 5 front ends are outstanding, are provided with flow-disturbing fin 11 on the first guide plate 5.
Described the second guide plate 6 front ends are outstanding, are provided with flow-disturbing fin 12 and processus aboralis guide plate 13 on the second guide plate 6.
Described the 3rd guide plate 7 front ends are outstanding, are provided with flow-disturbing fin 14 and processus aboralis guide plate 15 on the 3rd guide plate 7.
Described the 4th guide plate 8 front ends are outstanding, are provided with flow-disturbing fin 16 and processus aboralis guide plate 17 on the 4th guide plate 8.
Described the 5th guide plate 9 front ends are outstanding, are provided with flow-disturbing fin 18 and processus aboralis guide plate 19 on the 5th guide plate 9.
Described the 6th guide plate 10 front ends are outstanding, are provided with flow-disturbing fin 21, front prominent spoiler 20 and processus aboralis spoiler 22 on the 6th guide plate 10.
Working principle of the present utility model and working procedure:
Tail gas enters in the air inlet pipeline 1 and after urea mixes in the utility model, because the urea straying quatity is larger, can not be decomposed into rapidly NH3, thereby multiphase flow appears in air inlet pipeline, urea deposits is in lower stream of airflow, by one group of mixing arrangement 2 time, 20 pairs of urea-containing bottoms of richness of front prominent spoiler tail gas of mixer bottom guide plate 10 carries out sufficient flow-disturbing, and the processus aboralis guide plate 13,15,17,19,22 through each guide plate 6～10 fully mixes urea in tail gas again.Mixing can't reach well-mixed tail gas through one-level, again mixes through second level mixer more to have reached well-mixed purpose.
The utility model has not only improved mixing efficiency, thereby improves transformation efficiency, has saved the cost of pipeline, and has saved the space, works under the environment that is more suitable for being restricted in spaces such as boats and ships.
Claims (8)
1. Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement, it is characterized in that: comprise air inlet pipeline (1), one group of mixing arrangement (2), described one group of mixing arrangement (2) by two independently mixer combine, described two independently mixer be installed in parallel in the air inlet pipeline (1).
2. Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement as claimed in claim 1, it is characterized in that: described two independently mixer structure is identical, one of them independently mixer comprise cirque body (4), the first guide plate (5), the second guide plate (6), the 3rd guide plate (7), the 4th guide plate (8), the 5th guide plate (9), the 6th guide plate (10); What the first guide plate (5), the second guide plate (6), the 3rd guide plate (7), the 4th guide plate (8), the 5th guide plate (9), the 6th guide plate (10) were parallel to each other is embedded in the cirque body (4).
3. Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement as claimed in claim 1 is characterized in that: described the first guide plate (5) front end is outstanding, is provided with flow-disturbing fin (11) on the first guide plate (5).
4. Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement as claimed in claim 1 is characterized in that: described the second guide plate (6) front end is outstanding, is provided with flow-disturbing fin (12) and processus aboralis guide plate (13) on the second guide plate (6).
5. Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement as claimed in claim 1 is characterized in that: described the 3rd guide plate (7) front end is outstanding, is provided with flow-disturbing fin (14) and processus aboralis guide plate (15) on the 3rd guide plate (7).
6. Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement as claimed in claim 1 is characterized in that: described the 4th guide plate (8) front end is outstanding, is provided with flow-disturbing fin (16) and processus aboralis guide plate (17) on the 4th guide plate (8).
7. Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement as claimed in claim 1 is characterized in that: described the 5th guide plate (9) front end is outstanding, is provided with flow-disturbing fin (18) and processus aboralis guide plate (19) on the 5th guide plate (9).
8. Marine High-power Diesel Engine tail gas denitration SCR system gas mixing arrangement as claimed in claim 1, it is characterized in that: described the 6th guide plate (10) front end is outstanding, is provided with flow-disturbing fin (21), front prominent spoiler (20) and processus aboralis spoiler (22) on the 6th guide plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220513248.4U CN202900381U (en) | 2012-09-29 | 2012-09-29 | Gas mixing device of tail gas denitration semiconductor control rectifier (SCR) system of high-power diesel engine for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220513248.4U CN202900381U (en) | 2012-09-29 | 2012-09-29 | Gas mixing device of tail gas denitration semiconductor control rectifier (SCR) system of high-power diesel engine for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900381U true CN202900381U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220513248.4U Expired - Fee Related CN202900381U (en) | 2012-09-29 | 2012-09-29 | Gas mixing device of tail gas denitration semiconductor control rectifier (SCR) system of high-power diesel engine for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840018A (en) * | 2012-09-29 | 2012-12-26 | 江苏绿源环保科技有限公司 | Gas mixing device of tail gas denitration SCR (Semiconductor Control Rectifier) system of high-power diesel engine for ship |
| CN107243265A (en) * | 2017-07-25 | 2017-10-13 | 天津阿奇森环保技术有限公司 | A kind of ammonia blender |
-
2012
- 2012-09-29 CN CN201220513248.4U patent/CN202900381U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840018A (en) * | 2012-09-29 | 2012-12-26 | 江苏绿源环保科技有限公司 | Gas mixing device of tail gas denitration SCR (Semiconductor Control Rectifier) system of high-power diesel engine for ship |
| CN107243265A (en) * | 2017-07-25 | 2017-10-13 | 天津阿奇森环保技术有限公司 | A kind of ammonia blender |
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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: TENNECO (CHINA) CO., LTD. Free format text: FORMER OWNER: JIANGSU LVYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Effective date: 20140415 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214142 WUXI, JIANGSU PROVINCE TO: 200000 HUANGPU, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140415 Address after: A C-D 17 Jiujiang road Whampoa District Shanghai City, No. 686 building, Baolong 200000 Patentee after: Tenneco (Chinese) Co. Ltd. Address before: 214142 Jiangsu province Wuxi New Area Shuofang Industrial Park Road two Zhenfa Patentee before: Jiangsu Lvyuan Environmental Protection Technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |