CN220159655U - Novel high-efficient SCR denitration system - Google Patents
Novel high-efficient SCR denitration system Download PDFInfo
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- CN220159655U CN220159655U CN202321493735.3U CN202321493735U CN220159655U CN 220159655 U CN220159655 U CN 220159655U CN 202321493735 U CN202321493735 U CN 202321493735U CN 220159655 U CN220159655 U CN 220159655U
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- Prior art keywords
- flue gas
- ammonia water
- storage tank
- scr denitration
- novel high
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- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 51
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 51
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000003546 flue gas Substances 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 19
- 239000003054 catalyst Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of SCR denitration, and discloses a novel efficient SCR denitration system which comprises an ammonia water storage tank, a delivery pump, an air preheater, an ammonia water evaporator, a mixer, a flue gas preheater, a denitration device, an induced draft fan, a computer, a network module and a CPU processing module. The utility model can monitor the start-stop states of the delivery pump, the smoke preheater, the induced draft fan and the smoke analyzer through the CPU processing module and feed back the monitored states to the computer, then personnel can start or stop the equipment through the computer, and simultaneously the liquid level sensor, the temperature sensor and the air speed sensor can respectively monitor the ammonia water quantity in the ammonia water storage tank, the temperature of the smoke and the induced draft speed in real time.
Description
Technical Field
The utility model relates to the technical field of SCR denitration, in particular to a novel efficient SCR denitration system.
Background
The SCR selective catalytic reduction denitration technology is the flue gas denitration technology which is most widely applied internationally at present, is basically applied to most power plants in national regions such as Japan, europe, america and the like, has no byproducts, does not form secondary pollution, has a simple structure, and has the advantages of high removal efficiency (up to more than 90 percent), reliable operation, convenient maintenance and the like.
The prior patent (publication number: CN 201720481700.6) is a novel efficient SCR denitration system, which comprises an ammonia water storage tank, a delivery pump, an air preheater, an ammonia water evaporator, a mixer, a flue gas preheater, an induced draft fan, a denitration device, a chimney and a dust remover; inside from the top down of denitrification facility includes in proper order: the flue gas denitration device comprises a flue gas inlet, a guide plate, a rectifier, a catalyst bed layer, a support plate, an SCR reactor and a flue gas outlet, wherein a granular catalyst inlet is arranged on the denitration device between the rectifier and the catalyst bed layer, and a catalyst outlet is arranged on the denitration device above the support plate at the bottom of the catalyst bed layer; the ammonia water storage tank, the delivery pump, the ammonia water evaporator, the mixer, the flue gas inlet of the flue gas preheater, the flue gas outlet of the flue gas preheater, the denitration device, the induced draft fan and the chimney are connected in sequence through pipelines; the air preheater is connected with the ammonia water evaporator through a pipeline; the dust remover is connected with the mixer through a pipeline.
In the process of implementing the present utility model, the inventor finds that at least the following problems in the prior art are not solved: the existing intelligent control system and cloud platform system are lacked, and then manual operation is needed to the denitration system, meanwhile, data monitoring cannot be carried out on the running state of equipment in the denitration system, the operation and the control are inconvenient, and the later operation and maintenance service is inconvenient, so that a novel efficient SCR denitration system is provided.
Disclosure of Invention
The utility model aims to provide a novel efficient SCR denitration system, which solves the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel high-efficiency SCR denitration system comprises an ammonia water storage tank, a delivery pump, an air preheater, an ammonia water evaporator, a mixer, a flue gas preheater, a denitration device, an induced draft fan, a computer, a network module and a CPU processing module, wherein the ammonia water storage tank, the delivery pump, the air preheater, the ammonia water evaporator, the mixer, the flue gas preheater, the denitration device and the induced draft fan are sequentially connected through pipelines; the top intercommunication of aqueous ammonia storage tank has the aqueous ammonia to advance the pipe, the aqueous ammonia advances intraductal solenoid valve of installing, level sensor is installed to the inner wall of aqueous ammonia storage tank, install temperature sensor in the pipeline between flue gas preheater and the denitrification facility, install wind speed sensor in the pipeline between draught fan and the denitrification facility.
As an alternative of the technical scheme of the utility model, the bottom end of the mixer is fixedly connected with a driving motor, the bottom end of the inner cavity of the mixer is rotationally connected with a stirring rod through a bearing, and a motor shaft of the driving motor is connected with the stirring rod through a coupling.
As an alternative of the technical scheme of the utility model, a flue gas analyzer is communicated with a pipeline between the induced draft fan and the denitration device, and one end of the flue gas analyzer is connected with an inlet of the denitration device.
As an alternative to the technical solution of the present utility model, the denitration device includes: the device comprises a flue gas inlet, a guide plate, a rectifier, a catalyst bed layer, a bearing plate, an SCR reactor and a flue gas outlet.
As an alternative to the technical scheme of the utility model, the ammonia water evaporator is provided with a barometer.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
according to the technical scheme, the starting and stopping states of the conveying pump, the smoke preheater, the induced draft fan and the smoke analyzer can be monitored through the CPU processing module and fed back to the computer, then personnel can start or stop the equipment through the computer, meanwhile, the liquid level sensor, the temperature sensor and the air speed sensor can respectively monitor the ammonia water quantity in the ammonia water storage tank, the temperature of the smoke and the induced draft speed in real time, when the working efficiency of the equipment is reduced, the running state of the equipment can be timely adjusted according to data on the computer, the damaged position of the equipment can be quickly inquired, and the equipment is convenient to operate and control and convenient for later operation and maintenance service.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a front view of a novel high efficiency SCR denitration system of the present utility model;
fig. 2 is a schematic diagram of a control system of the novel high-efficiency SCR denitration system of the present utility model.
In the figure: 1. an ammonia water storage tank; 101. ammonia water inlet pipe; 2. a transfer pump; 3. an air preheater; 4. an ammonia water evaporator; 5. a mixer; 501. a driving motor; 502. a stirring rod; 6. a flue gas preheater; 7. a denitration device; 8. a flue gas analyzer; 9. an induced draft fan; 10. a wind speed sensor; 11. a temperature sensor; 12. a CPU processing module; 13. an electromagnetic valve; 14. a liquid level sensor; 15. a computer; 16. a network module; 17. barometer.
Detailed Description
Referring to fig. 1-2, the present utility model provides a technical solution: the novel high-efficiency SCR denitration system comprises an ammonia water storage tank 1, a delivery pump 2, an air preheater 3, an ammonia water evaporator 4, a mixer 5, a flue gas preheater 6, a denitration device 7, an induced draft fan 9, a computer 15, a network module 16 and a CPU (Central processing Unit) processing module 12, wherein the ammonia water storage tank 1, the delivery pump 2, the air preheater 3, the ammonia water evaporator 4, the mixer 5, the flue gas preheater 6, the denitration device 7 and the induced draft fan 9 are connected in sequence through pipelines; the top intercommunication of aqueous ammonia storage tank 1 has aqueous ammonia to advance pipe 101, install electromagnetic valve 13 in the aqueous ammonia advances pipe 101, level sensor 14 is installed to the inner wall of aqueous ammonia storage tank 1, install temperature sensor 11 in the pipeline between flue gas preheater 6 and the denitrification facility 7, install wind speed sensor 10 in the pipeline between draught fan 9 and denitrification facility 7, the intercommunication has flue gas analyzer 8 on the pipeline between draught fan 9 and denitrification facility 7, flue gas analyzer 8 one end is connected with denitrification facility 7's import, delivery pump 2, flue gas preheater 6, flue gas analyzer 8, draught fan 9, wind speed sensor 10, temperature sensor 11, electromagnetic valve 13 and level sensor 14 all are connected with CPU processing module 12 through wire two-way electricity, the transceiver of CPU processing module 12 is connected with the transceiver of network module 16 through the treater, network module 16 is connected with the ethernet through the wire, computer 15 is connected with the ethernet through the net twine shop, denitrification facility 7 includes: the device comprises a flue gas inlet, a guide plate, a rectifier, a catalyst bed layer, a bearing plate, an SCR reactor and a flue gas outlet.
In this kind of technical scheme, can monitor the start-stop state of delivery pump 2, flue gas preheater 6, draught fan 9 and flue gas analyzer 8 through CPU processing module 12 and feed back to computer 15, then personnel can start or shut down equipment through computer 15, liquid level sensor 14, temperature sensor 11 and wind speed sensor 10 can carry out real-time supervision to the ammonia water yield in the aqueous ammonia storage tank 1 respectively, the temperature of flue gas and the speed of induced air simultaneously, when equipment work efficiency reduces, can in time adjust equipment running state and inquire the position of equipment damage fast according to the data on the computer, not only conveniently control, the later stage fortune dimension service of being convenient for moreover.
In some technical schemes, a driving motor 501 is fixedly connected to the bottom end of a mixer 5, a stirring rod 502 is rotatably connected to the bottom end of an inner cavity of the mixer 5 through a bearing, and a motor shaft of the driving motor 501 is connected with the stirring rod 502 through a coupling.
In this technical scheme, through the setting of driving motor 501 and puddler 502, drive puddler 502 rotation through driving motor 501, and then can make the gas intensive mixing in blender 5.
In some technical schemes, an air pressure gauge 17 is arranged on the ammonia water evaporator 4, and a detection end of the air pressure gauge 17 is communicated with the ammonia water evaporator 4.
In this kind of technical scheme, through the setting of barometer 17, and then can monitor the atmospheric pressure in the ammonia water evaporimeter 4, avoid atmospheric pressure too high or too low effect that influences the aqueous ammonia evaporation.
During the use, can monitor the start-stop state of delivery pump 2, flue gas preheater 6, draught fan 9 and flue gas analyzer 8 through CPU processing module 12 and feed back to computer 15, then personnel can start or shut down equipment through computer 15, liquid level sensor 14, temperature sensor 11 and wind speed sensor 10 can carry out real-time supervision to the ammonia water yield in the aqueous ammonia storage tank 1, the temperature of flue gas and the speed of induced air respectively, when the aqueous ammonia volume is less, automatic opening electromagnetic valve 13 case aqueous ammonia storage tank 1 internal replenishment aqueous ammonia, when equipment work efficiency reduces, can in time adjust equipment running state and inquire the position of equipment damage fast according to the data on the computer, not only conveniently control, and the later operation and maintenance service of being convenient for.
Claims (5)
1. The utility model provides a novel high-efficient SCR denitration system, includes aqueous ammonia storage tank (1), delivery pump (2), air heater (3), ammonia water evaporimeter (4), blender (5), flue gas pre-heater (6), denitrification facility (7), draught fan (9), computer (15), network module (16) and CPU processing module (12), its characterized in that: the ammonia water storage tank (1), the delivery pump (2), the air preheater (3), the ammonia water evaporator (4), the mixer (5), the flue gas preheater (6), the denitration device (7) and the induced draft fan (9) are connected in sequence through pipelines;
the top intercommunication of aqueous ammonia storage tank (1) has aqueous ammonia to advance pipe (101), install electromagnetic valve (13) in the aqueous ammonia advances pipe (101), level sensor (14) are installed to the inner wall of aqueous ammonia storage tank (1), install temperature sensor (11) in the pipeline between flue gas preheater (6) and denitrification facility (7), install wind speed sensor (10) in the pipeline between draught fan (9) and denitrification facility (7).
2. The novel high-efficiency SCR denitration system according to claim 1, wherein: the bottom end fixedly connected with driving motor (501) of blender (5), the inner chamber bottom of blender (5) is connected with puddler (502) through the bearing rotation, the motor shaft of driving motor (501) is connected with puddler (502) through the shaft coupling.
3. The novel high-efficiency SCR denitration system according to claim 1, wherein: and a flue gas analyzer (8) is communicated with a pipeline between the induced draft fan (9) and the denitration device (7), and one end of the flue gas analyzer (8) is connected with an inlet of the denitration device (7).
4. The novel high-efficiency SCR denitration system according to claim 1, wherein: the denitration device (7) comprises: the device comprises a flue gas inlet, a guide plate, a rectifier, a catalyst bed layer, a bearing plate, an SCR reactor and a flue gas outlet.
5. The novel high-efficiency SCR denitration system according to claim 1, wherein: and a barometer (17) is arranged on the ammonia water evaporator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321493735.3U CN220159655U (en) | 2023-06-09 | 2023-06-09 | Novel high-efficient SCR denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321493735.3U CN220159655U (en) | 2023-06-09 | 2023-06-09 | Novel high-efficient SCR denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220159655U true CN220159655U (en) | 2023-12-12 |
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ID=89059448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321493735.3U Active CN220159655U (en) | 2023-06-09 | 2023-06-09 | Novel high-efficient SCR denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220159655U (en) |
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2023
- 2023-06-09 CN CN202321493735.3U patent/CN220159655U/en active Active
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