CN207429970U - Flue gas recirculation condenses nebulization dust system - Google Patents
Flue gas recirculation condenses nebulization dust system Download PDFInfo
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- CN207429970U CN207429970U CN201721400099.XU CN201721400099U CN207429970U CN 207429970 U CN207429970 U CN 207429970U CN 201721400099 U CN201721400099 U CN 201721400099U CN 207429970 U CN207429970 U CN 207429970U
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Abstract
The utility model discloses a kind of flue gas recirculations to condense nebulization dust system, including wet process of FGD gas wash tower, the top of wet process of FGD gas wash tower is equipped with neat stress flue, flue demister is equipped in neat stress flue, one side of the flue demister away from wet process of FGD gas wash tower is equipped with sucking wind pipeline, flue demister is equipped with discharge wind pipeline close to the one side of wet process of FGD gas wash tower, sucks between wind pipeline and discharge wind pipeline and is equipped with：Flue gas cooling device is cooled down for the flue gas to sucking and is precipitated drop；Rotational flow atomization device, the air inlet of rotational flow atomization device are connected with the gas outlet of flue gas cooling device, and broken for that will be forced through the drop that flue gas cooling device is precipitated；Wind turbine is evacuated, for the flue gas after flue gas cooling device cools down to be evacuated in rotational flow atomization device；Sucking wind pipeline is connected with the air inlet of flue gas cooling device, and discharge wind pipeline is connected with the exhaust outlet of rotational flow atomization device.
Description
Technical field
The utility model belongs to fume treatment technical field, specifically condenses nebulization dust system for a kind of flue gas recirculation
System.
Background technology
National Development and Reform Committee, State Ministry of Environmental Protection, National Energy Board dispatch a joint document " on printing and distributing at present《Coal electricity energy-saving and emission-reduction liter
Grade and transformation action plan (2014-the year two thousand twenty)》Notice " in requirement, move forward steadily 300,000 kilowatts of eastern region active service and with
It is dense that upper public Thermal generation unit and conditional less than 300,000 kilowatts public Thermal generation units implement Air Pollutant Emission
Degree basically reaches the environmental transformation of gas turbine group emission limit.Thermal generation unit Air Pollutant Emission concentration basically reaches
Gas turbine group emission limit (i.e. under the conditions of benchmark oxygen content 6%, flue dust, sulfur dioxide, discharged nitrous oxides concentration difference
Not higher than 10,35,50 mg/m3.For " action plan ", domestic thermal power generation group proposes " ultra-clean discharge（50、35、5
（Nitrogen oxides, sulfur dioxide, dust concentration））", " near-zero release ", " minimum discharge ", the similar slogan such as " green power generation ".
Currently, wet method limestone-gypsum desulfurization technology is existing most ripe, the desulfurization technology that is most widely used.And pin
To ultra-clean discharge, must just renovation and improving be carried out to wet method limestone-gypsum desulfurization technology.Sulfur dioxide compared only need to be to wet method
Desulfurized dust collection column carries out extending capacity reformation and promotes removal efficiency, and the processing of dust is only most of thermal power plants and raises difficult questions a little.Wet method
Desulfurized dust collection column is to fine particulates（Below PM2.5）Removal effect it is bad, and can become smaller with particle, removal effect is more
Difference, in addition wet method sulphur removing and dust removing tower has certain drop discharge in itself, these drops all contain solid, so conventional wet lay desulfurization
Dust emission afterwards is unable to reach the requirement of ultra-clean discharge.
The country generally realizes the ultra-clean discharge of dust using two kinds of modes at present：
1st, wet electrical dust precipitator is increased；It can thoroughly solve the problems, such as the minimum discharge of dust, but wet-esp is made
Valency and operating cost are high；
2nd, ridge type demister is transform as to the higher form of dust removal efficiency, such as bundled tube demister, by more
Big centrifugal force removing fine particle, but its in underload, dust removal efficiency is relatively low, be unable to reach the effect of needs.
The content of the invention
In view of this, the purpose of this utility model is to provide a kind of flue gas recirculations to condense nebulization dust system, it is only necessary to
Existing wet method limestone-gypsum desulphurization system is simply transformed, you can meet the requirement of minimum discharge, and have
The advantages of flow is simple, operational efficiency is high, expense is low and energy consumption is lower.
In order to achieve the above objectives, the utility model provides following technical solution：
A kind of flue gas recirculation condenses nebulization dust system, and including wet process of FGD gas wash tower, the wet flue gas takes off
The top of sulphur gas wash tower is equipped with neat stress flue, and flue demister, the flue demisting dress are equipped in the neat stress flue
It puts the one side away from the wet process of FGD gas wash tower and is equipped with sucking wind pipeline, the flue demister is close to the wet method
The one side of fuel gas desulfurization gas wash tower is equipped with discharge wind pipeline, is equipped between the sucking wind pipeline and discharge wind pipeline：
Flue gas cooling device is cooled down for the flue gas to sucking and is precipitated drop；
Rotational flow atomization device, the air inlet of the rotational flow atomization device are connected with the gas outlet of the flue gas cooling device,
And the drop for that will be precipitated through the flue gas cooling device is forced to crush；
Wind turbine is evacuated, for the flue gas after flue gas cooling device cooling to be evacuated in the rotational flow atomization device；
The sucking wind pipeline is connected with the air inlet of the flue gas cooling device, the discharge wind pipeline and the eddy flow
The exhaust outlet of atomising device is connected.
Further, the bottom of the rotational flow atomization device is equipped with discharge waterpipe.
Further, washing system, the discharge waterpipe and the wet method are equipped in the wet process of FGD gas wash tower
Fuel gas desulfurization gas wash tower is connected, and the water outlet of the discharge waterpipe is located at the top of the washing system.
Further, the demister being located above the washing system is equipped in the wet process of FGD gas wash tower.
Further, the top of the demister is equipped with mist eliminator flushing system.
Further, the smoke inlet being located at below the washing system is equipped in the wet process of FGD gas wash tower.
Further, the slurry pool being located at below the smoke inlet is equipped in the wet process of FGD gas wash tower, it is described
Slurry circulating pump is equipped between slurry pool and the washing system.
The beneficial effects of the utility model are：
The flue gas recirculation condensation nebulization dust system of the utility model, by setting flue demisting in neat stress flue
Device and sucking wind pipeline and discharge wind pipeline, flue gas slough most sulphur content and big through wet process of FGD gas wash tower
Grain object, flue gas has been saturated flue gas at this time, and then a large amount of drops can be precipitated in the flue gas of saturation after flue gas cooling device cools down, and take
Guttiferous flue gas is sent into rotational flow atomization device by pumping wind turbine, and the flue gas of high flow rate has very high pneumatic Weber number, in eddy flow
In atomising device, the drop of carrying can be forced to crush, and form the drop of relatively uniform distribution from big to small, finally be sent back to
In net flue；The theory for the probability maximum for adsorbed according to water fog particle when close with dust granules size, filtering, condensing, droplet
When the scope of diameter and grit diameter ratio k are in 1.25 ＜ k ＜ 5, dirt best results are caught, in this way, can be realized to neat stress
Flue gas in flue carries out the technique effect of dedusting, can meet the requirement of minimum discharge, and has the following advantages：
（1）Flow is simple, the principle grown up using condensation cooling precipitation drop and close small dropping liquid collision, by clean saturation
Flue gas increases the fine drop content system of spraying back, makes the fine particulates increase for being not easy removal originally, it is made to become easily to go
It removes；
（2）It only need to simply be transformed outside original system, without transforming main system, be suitble to existing all configuration wet desulphurizations
The system reform, can be transformed in the case where having little influence on system operation, floor space is few, and invests low；
（3）It is transform as compared to increase wet electrical dust precipitator and by ridge type demister to the higher shape of dust removal efficiency
Formula, the flue gas recirculation condensation nebulization dust system of the utility model do not have to increase equipment in main smoke airflow journey, do not increase resistance
Power, low energy consumption, and operating cost is low；
（4）Effect with condensation flue gas, can achieve the purpose that water-saving；It is condensed using the flue gas recirculation of the utility model
If nebulization dust system installs heating unit additional on follow-up flue gas flow, to achieve the effect that identical eliminating white smoke, than using conventional
Heating unit energy consumption is lower.
Description of the drawings
In order to make the purpose of this utility model, technical solution and advantageous effect clearer, the utility model provides as follows
Attached drawing illustrates：
Fig. 1 is the structure diagram that the utility model flue gas recirculation condenses nebulization dust system embodiment.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
It can be better understood from the utility model and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
As shown in Figure 1, the structure diagram of nebulization dust system embodiment is condensed for the utility model flue gas recirculation.This
A kind of flue gas recirculation condensation nebulization dust system of embodiment, including wet process of FGD gas wash tower 1, wet process of FGD removes
The top of chimney 1 is equipped with neat stress flue 6, is equipped with flue demister 13 in neat stress flue 6, flue demister 13 is separate
The one side of wet process of FGD gas wash tower 1 is equipped with sucking wind pipeline 7, and flue demister 13 is close to wet process of FGD gas wash tower
1 one side is equipped with discharge wind pipeline 12, sucks between wind pipeline 7 and discharge wind pipeline 12 and is equipped with：Flue gas cooling device 8, is used for
Cooled down to the flue gas of sucking and be precipitated drop；Rotational flow atomization device 10, the air inlet and flue gas of rotational flow atomization device 10 are cold
But the gas outlet of device 8 is connected, and the drop for that will be precipitated through flue gas cooling device 8 is forced to crush；Wind turbine 9 is evacuated, is used for
Flue gas after flue gas cooling device 8 cools down is evacuated in rotational flow atomization device 10.The sucking wind pipeline 7 and flue gas of the present embodiment
The air inlet of cooling device 8 is connected, and discharge wind pipeline 12 is connected with the exhaust outlet of rotational flow atomization device 10.
Further, the bottom of the rotational flow atomization device 10 of the present embodiment is equipped with discharge waterpipe 11.Specifically, wet flue gas
Washing system 3 is equipped in desulfurized dust collection column 1, discharge waterpipe 11 is connected with wet process of FGD gas wash tower 1, and discharges waterpipe
11 water outlet is located at the top of washing system 3.
Further, the demister 4 for being located at 3 top of washing system is equipped in wet process of FGD gas wash tower 1, demister 4
Top is equipped with mist eliminator flushing system 5.The smoke inlet for being located at 3 lower section of washing system is equipped in wet process of FGD gas wash tower 1,
The slurry pool being located at below smoke inlet is equipped in wet process of FGD gas wash tower 1, slurry is equipped between slurry pool and washing system 3
Liquid circulating pump 2.
The flue gas recirculation condensation nebulization dust system of the present embodiment, by neat stress flue flue demisting being set to fill
Wind pipeline and discharge wind pipeline are put and suck, flue gas sloughs most sulphur content and bulky grain through wet process of FGD gas wash tower
Object, flue gas has been saturated flue gas at this time, and then a large amount of drops can be precipitated in the flue gas of saturation after flue gas cooling device cools down, and is carried
The flue gas of drop is sent into rotational flow atomization device by pumping wind turbine, and the flue gas of high flow rate has very high pneumatic Weber number, in eddy flow mist
During makeup is put, the drop of carrying can be forced to crush, and form the drop of relatively uniform distribution from big to small, finally be sent back to net
In flue；The theory for the probability maximum for adsorbed according to water fog particle when close with dust granules size, filtering, condensing, droplet are straight
When the scope of footpath and grit diameter ratio k are in 1.25 ＜ k ＜ 5, dirt best results are caught, in this way, can be realized to neat stress cigarette
Flue gas in road carries out the technique effect of dedusting, can meet the requirement of minimum discharge, and has the following advantages：
（1）Flow is simple, the principle grown up using condensation cooling precipitation drop and close small dropping liquid collision, by clean saturation
Flue gas increases the fine drop content system of spraying back, makes the fine particulates increase for being not easy removal originally, it is made to become easily to go
It removes；
（2）It only need to simply be transformed outside original system, without transforming main system, be suitble to existing all configuration wet desulphurizations
The system reform, can be transformed in the case where having little influence on system operation, floor space is few, and invests low；
（3）It is transform as compared to increase wet electrical dust precipitator and by ridge type demister to the higher shape of dust removal efficiency
Formula, the flue gas recirculation condensation nebulization dust system of the present embodiment do not have to increase equipment in main smoke airflow journey, do not increase resistance,
Low energy consumption, and operating cost is low；
（4）Effect with condensation flue gas, can achieve the purpose that water-saving；Mist is condensed using the flue gas recirculation of the present embodiment
If change dust pelletizing system installs heating unit additional on follow-up flue gas flow, to achieve the effect that identical eliminating white smoke, than adding using conventional
Thermal energy consumption is lower.
Embodiment described above is only the preferred embodiment to absolutely prove the utility model and being lifted, the utility model
Protection domain it is without being limited thereto.The equivalent substitute or change that those skilled in the art are made on the basis of the utility model
It changes, within the scope of protection of the utility model.The scope of protection of the utility model is subject to claims.
Claims (7)
1. a kind of flue gas recirculation condenses nebulization dust system, including wet process of FGD gas wash tower, the wet process of FGD
The top of gas wash tower is equipped with neat stress flue, it is characterised in that：Flue demister, the cigarette are equipped in the neat stress flue
One side of the road demister away from the wet process of FGD gas wash tower is equipped with sucking wind pipeline, and the flue demister is close
The one side of the wet process of FGD gas wash tower is equipped with discharge wind pipeline, is set between the sucking wind pipeline and discharge wind pipeline
Have：
Flue gas cooling device is cooled down for the flue gas to sucking and is precipitated drop；
Rotational flow atomization device, the air inlet of the rotational flow atomization device are connected with the gas outlet of the flue gas cooling device, are used in combination
It is forced in the drop that will be precipitated through the flue gas cooling device broken；
Wind turbine is evacuated, for the flue gas after flue gas cooling device cooling to be evacuated in the rotational flow atomization device；
The sucking wind pipeline is connected with the air inlet of the flue gas cooling device, the discharge wind pipeline and the swirling flow atomizing
The exhaust outlet of device is connected.
2. flue gas recirculation according to claim 1 condenses nebulization dust system, it is characterised in that：The swirling flow atomizing dress
The bottom put is equipped with discharge waterpipe.
3. flue gas recirculation according to claim 2 condenses nebulization dust system, it is characterised in that：The wet flue gas takes off
Washing system is equipped in sulphur gas wash tower, the discharge waterpipe is connected with the wet process of FGD gas wash tower, and the discharge
The water outlet of waterpipe is located at the top of the washing system.
4. flue gas recirculation according to claim 3 condenses nebulization dust system, it is characterised in that：The wet flue gas takes off
The demister being located above the washing system is equipped in sulphur gas wash tower.
5. flue gas recirculation according to claim 4 condenses nebulization dust system, it is characterised in that：The demister it is upper
Side is equipped with mist eliminator flushing system.
6. flue gas recirculation according to claim 3 condenses nebulization dust system, it is characterised in that：The wet flue gas takes off
The smoke inlet being located at below the washing system is equipped in sulphur gas wash tower.
7. flue gas recirculation according to claim 6 condenses nebulization dust system, it is characterised in that：The wet flue gas takes off
The slurry pool being located at below the smoke inlet is equipped in sulphur gas wash tower, slurry is equipped between the slurry pool and the washing system
Liquid circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721400099.XU CN207429970U (en) | 2017-10-27 | 2017-10-27 | Flue gas recirculation condenses nebulization dust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721400099.XU CN207429970U (en) | 2017-10-27 | 2017-10-27 | Flue gas recirculation condenses nebulization dust system |
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| CN207429970U true CN207429970U (en) | 2018-06-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889038A (en) * | 2018-09-22 | 2018-11-27 | 南京兰丰环保科技有限公司 | A kind of plume takes off white device |
| CN109030122A (en) * | 2018-08-15 | 2018-12-18 | 山东国舜建设集团有限公司 | Wet flue gas condensation water sampler and method are saturated after a kind of wet desulphurization |
| CN110141916A (en) * | 2019-06-19 | 2019-08-20 | 众一阿美科福斯特惠勒工程有限公司 | A kind of plurality of nozzle-type ethylene coke cleaning dust collecting process and device |
-
2017
- 2017-10-27 CN CN201721400099.XU patent/CN207429970U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030122A (en) * | 2018-08-15 | 2018-12-18 | 山东国舜建设集团有限公司 | Wet flue gas condensation water sampler and method are saturated after a kind of wet desulphurization |
| CN109030122B (en) * | 2018-08-15 | 2023-12-01 | 山东国舜建设集团有限公司 | Sampling device and method for saturated wet flue gas condensate after wet desulfurization |
| CN108889038A (en) * | 2018-09-22 | 2018-11-27 | 南京兰丰环保科技有限公司 | A kind of plume takes off white device |
| CN108889038B (en) * | 2018-09-22 | 2024-04-12 | 盐城市兰丰环境工程科技有限公司 | Tobacco feather whitening device |
| CN110141916A (en) * | 2019-06-19 | 2019-08-20 | 众一阿美科福斯特惠勒工程有限公司 | A kind of plurality of nozzle-type ethylene coke cleaning dust collecting process and device |
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Address after: 310051 Room 1501, 4 New Shuangcheng Building, No. 1785 Jianghan Road, Changhe Street, Binjiang District, Hangzhou City, Zhejiang Province Co-patentee after: Zhejiang University of Zhejiang New Environment Engineering Co., Ltd. Patentee after: Zhejiang Zhejiang ZheDaNet New Mechatronics Technology Group Co., Ltd. Address before: 310015 No. 139 Xiangyuan Road, Gongshu District, Hangzhou City, Zhejiang Province Co-patentee before: Zhejiang University of Zhejiang New Environment Engineering Co., Ltd. Patentee before: Insigma Mechanical & Electrical Engineering Co.,Ltd. |