CN205461546U - Processing system of flue gas behind wet flue gas desulfurization device in thermal power plant - Google Patents
Processing system of flue gas behind wet flue gas desulfurization device in thermal power plant Download PDFInfo
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- CN205461546U CN205461546U CN201620151419.1U CN201620151419U CN205461546U CN 205461546 U CN205461546 U CN 205461546U CN 201620151419 U CN201620151419 U CN 201620151419U CN 205461546 U CN205461546 U CN 205461546U
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Abstract
The utility model discloses a processing system of flue gas behind wet flue gas desulfurization device in thermal power plant, include wet flue gas desulfurization device, flue gas input pipeline, spray lower the temperature tower, flue gas output pipeline, heat exchanger, water processing system, boiler condensate water input pipeline and boiler condensate water output pipeline, the exhanst gas outlet of wet flue gas desulfurization device is linked together through flue gas input pipeline and the flue gas entry that sprays the cooling tower, and flue gas output pipeline is linked together with the exhanst gas outlet that sprays cooling top of the tower portion, and the delivery port that sprays cooling tower bottom is linked together with the water inlet of heat exchanger, and the delivery port of heat exchanger is linked together with water processing system's water inlet, water processing system's delivery port with spray that the water inlet of each shower nozzle is linked together in the cooling tower, boiler condensate water input pipeline is linked together with the cooling water inlet of heat exchanger, and the boiler condenses, and water outlet pipe says and the coolant outlet of heat exchanger is linked together. The utility model discloses can the effectual flue gas of handling the production of wet flue gas desulfurization device.
Description
Technical field
This utility model belongs to energy-conserving and environment-protective field, relates to a kind of smoke processing system, is specifically related in a kind of thermal power plant the processing system of flue gas after wet desulphurization device.
Background technology
By the end of the year 2013, the flue gas desulphurization unit capacity that put into operation about 7.2 hundred million kilowatts, account for the 91.6% of whole nation active service coal unit capacity, wherein wet desulphurization accounting is maximum.After wet desulfuration tower, the moisture in flue gas is in saturation, and its steam accounts for the volume ratio of flue gas from 10%～18%, and when water condenses, thermal discharge is big, therefore water content and heat are the most considerable.It addition, flue gas still dust-laden after desulfurizing tower, and carry partial desulfurization serosity droplet, there will be chimney rain phenomenon time ill-conditioned, ecological environment near chimney is damaged.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, it is provided that the processing system of flue gas after wet desulphurization device in a kind of thermal power plant, and this system can effectively process the flue gas that wet desulphurization device produces.
For reaching above-mentioned purpose, in thermal power plant described in the utility model, after wet desulphurization device, the processing system of flue gas includes wet desulphurization device, flue gas input channel, spraying cooling tower, flue gas exit pipe road, heat exchanger, water treatment system, condensed water in boiler input channel and condensed water in boiler output channel；
The exhanst gas outlet of wet desulphurization device is connected by the smoke inlet of flue gas input channel with spraying cooling tower, flue gas exit pipe road is connected with the exhanst gas outlet of spraying cooling top of tower, the outlet of spraying cooling tower bottom is connected with the water inlet of heat exchanger, the outlet of heat exchanger is connected with the water inlet of water treatment system, and the outlet of water treatment system is connected with the water inlet of each shower nozzle in spraying cooling tower；
Condensed water in boiler input channel is connected with the cooling water inlet of heat exchanger, and condensed water in boiler output channel is connected with the coolant outlet of heat exchanger.
Described condensed water in boiler input channel is connected with the outlet of condensate pump in thermal power plant；
Described condensed water in boiler output channel is connected with the water inlet of thermal power plant's mesolow heater.
The outlet of described spraying cooling tower bottom is connected with the water inlet of heat exchanger by water circulating pump.
The smoke inlet of described spraying cooling tower is positioned at the side of spraying cooling tower, and the smoke inlet of spraying cooling tower is positioned at the lower section of each shower nozzle of spraying cooling tower.
The outlet of described water treatment system is also communicated with recycle-water pipeline, and described recycle-water pipeline is provided with valve.
This utility model has the advantages that
In thermal power plant described in the utility model after wet desulphurization device the processing system of flue gas during flue gas is processed, by the flue gas that wet desulphurization device produces is sent in spraying cooling tower, remove the dust in flue gas and gypseous desulfurization slurry droplet, realize the process to the flue gas that wet desulphurization device produces, avoid being exhausted directly in air the flue gas dripped by night fog containing dust and desulfurization, in turn result in the pollution to air.The water that spraying cooling tower produces simultaneously carries out lowering the temperature by heat exchanger, water treatment system enters in spraying cooling tower after carrying out water process, it is achieved the circulation of water, thus reaches energy-conservation, economizes on water and the purpose of environmental protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 be flue gas input channel, 2 be spraying cooling tower, 3 be heat exchanger, 4 be water treatment system, 5 be condensed water in boiler input channel, 6 be condensed water in boiler output channel, 7 be recycle-water pipeline, 8 be water circulating pump, 9 be flue gas exit pipe road, 10 for shower nozzle.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail:
With reference to Fig. 1, in thermal power plant described in the utility model, after wet desulphurization device, the processing system of flue gas includes wet desulphurization device, flue gas input channel 1, spraying cooling tower 2, flue gas exit pipe road 9, heat exchanger 3, water treatment system 4, condensed water in boiler input channel 5 and condensed water in boiler output channel 6；The exhanst gas outlet of wet desulphurization device is connected by the smoke inlet of flue gas input channel 1 with spraying cooling tower 2, flue gas exit pipe road 9 is connected with the exhanst gas outlet at spraying cooling tower 2 top, outlet bottom spraying cooling tower 2 is connected with the water inlet of heat exchanger 3, the outlet of heat exchanger 3 is connected with the water inlet of water treatment system 4, and the water inlet of the outlet of water treatment system 4 shower nozzle 10 each with in spraying cooling tower 2 is connected；Condensed water in boiler input channel 5 is connected with the cooling water inlet of heat exchanger 3, and condensed water in boiler output channel 6 is connected with the coolant outlet of heat exchanger 3.
It should be noted that described condensed water in boiler input channel 5 is connected with the outlet of condensate pump in thermal power plant；Condensed water in boiler output channel 6 is connected with the water inlet of thermal power plant's mesolow heater；Outlet bottom spraying cooling tower 2 is connected by the water inlet of water circulating pump 8 with heat exchanger 3；The smoke inlet of spraying cooling tower 2 is positioned at the side of spraying cooling tower 2, and the smoke inlet of spraying cooling tower 2 is positioned at the lower section of each shower nozzle of spraying cooling tower 2 10；The outlet of water treatment system 4 is also communicated with recycle-water pipeline 7, and described recycle-water pipeline 7 is provided with valve.
Specific works process of the present utility model is:
In thermal power plant, the condensed water in boiler of condensate pump output is in condensed water in boiler input channel 5 enters into heat exchanger 3, water bottom spraying cooling tower 2 enters in heat exchanger 3, and enter in water treatment system 4 after carrying out heat exchange with condensed water in boiler, condensed water in boiler after heat exchange enters in low-pressure heater through condensed water in boiler output channel 6, water treatment system 4 processes receiving water, and the shower nozzle 10 in spraying cooling tower 2 of the water after process is sprayed onto in spraying cooling tower 2；
The flue gas of wet desulphurization device output is in flue gas input channel 1 enters into spraying cooling tower 2, the water of shower nozzle 10 ejection contacts with Gas phase Smoke in spraying cooling tower 2, the temperature making flue gas in spraying cooling tower 2 reduces, and by the bottom of the dust in flue gas in spraying cooling tower 2 and gypseous desulfurization slurry mist droplet deposition to spraying cooling tower 2, flue gas after spraying cooling tower 2 processes is discharged by flue gas exit pipe road 9, it is achieved the process of flue gas after wet desulphurization device in thermal power plant.
Claims (5)
1. the processing system of flue gas after wet desulphurization device in a thermal power plant, it is characterized in that, including wet desulphurization device, flue gas input channel (1), spraying cooling tower (2), flue gas exit pipe road (9), heat exchanger (3), water treatment system (4), condensed water in boiler input channel (5) and condensed water in boiler output channel (6)；
The exhanst gas outlet of wet desulphurization device is connected by the smoke inlet of flue gas input channel (1) with spraying cooling tower (2), flue gas exit pipe road (9) is connected with the exhanst gas outlet at spraying cooling tower (2) top, the outlet of spraying cooling tower (2) bottom is connected with the water inlet of heat exchanger (3), the outlet of heat exchanger (3) is connected with the water inlet of water treatment system (4), and the outlet of water treatment system (4) is connected with the water inlet of each shower nozzle (10) in spraying cooling tower (2)；
Condensed water in boiler input channel (5) is connected with the cooling water inlet of heat exchanger (3), and condensed water in boiler output channel (6) is connected with the coolant outlet of heat exchanger (3).
The processing system of flue gas after wet desulphurization device in thermal power plant the most according to claim 1, it is characterised in that described condensed water in boiler input channel (5) is connected with the outlet of condensate pump in thermal power plant；
Described condensed water in boiler output channel (6) is connected with the water inlet of thermal power plant's mesolow heater.
The processing system of flue gas after wet desulphurization device in thermal power plant the most according to claim 1, it is characterized in that, the outlet of described spraying cooling tower (2) bottom is connected by the water inlet of water circulating pump (8) with heat exchanger (3).
The processing system of flue gas after wet desulphurization device in thermal power plant the most according to claim 1, it is characterized in that, the smoke inlet of described spraying cooling tower (2) is positioned at the side of spraying cooling tower (2), and the smoke inlet of spraying cooling tower (2) is positioned at the lower section of spraying cooling tower (2) each shower nozzle (10).
The processing system of flue gas after wet desulphurization device in thermal power plant the most according to claim 1, it is characterized in that, the outlet of described water treatment system (4) is also communicated with recycle-water pipeline (7), and described recycle-water pipeline (7) is provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620151419.1U CN205461546U (en) | 2016-02-29 | 2016-02-29 | Processing system of flue gas behind wet flue gas desulfurization device in thermal power plant |
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| CN201620151419.1U CN205461546U (en) | 2016-02-29 | 2016-02-29 | Processing system of flue gas behind wet flue gas desulfurization device in thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105582764A (en) * | 2016-02-29 | 2016-05-18 | 西安西热锅炉环保工程有限公司 | Treatment system and method for flue gas generated by wet desulphurization device in thermal power plant |
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2016
- 2016-02-29 CN CN201620151419.1U patent/CN205461546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105582764A (en) * | 2016-02-29 | 2016-05-18 | 西安西热锅炉环保工程有限公司 | Treatment system and method for flue gas generated by wet desulphurization device in thermal power plant |
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