CN211575159U - Wet flue gas desulfurization white-removing device - Google Patents
Wet flue gas desulfurization white-removing device Download PDFInfo
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- CN211575159U CN211575159U CN201922443771.9U CN201922443771U CN211575159U CN 211575159 U CN211575159 U CN 211575159U CN 201922443771 U CN201922443771 U CN 201922443771U CN 211575159 U CN211575159 U CN 211575159U
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- Prior art keywords
- flue gas
- pipe
- circulating water
- circulating
- water pipe
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 239000003546 flue gas Substances 0.000 title claims abstract description 117
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 20
- 230000023556 desulfurization Effects 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 26
- 239000007921 spray Substances 0.000 claims abstract description 18
- 230000002087 whitening effect Effects 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 241000208125 Nicotiana Species 0.000 claims abstract 5
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract 5
- 239000000779 smoke Substances 0.000 claims description 48
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract description 3
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000276489 Merlangius merlangus Species 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of industrial waste gas treatment, concretely relates to wet flue gas desulfurization whitening device, be provided with the flue gas cooler on advancing the tobacco pipe way, be provided with the hot circulating pump on the second circulating pipe, the desulfurizing tower exhanst gas outlet is connected with out the tobacco pipe way, it is provided with the condenser on the tobacco pipe way to go out, it is located on the tobacco pipe way the condenser with be provided with the flue gas reheater between the chimney, be provided with the second ring pipe in the flue gas reheater, the water inlet and the delivery port of second ring pipe with the second circulating pipe is connected, one side that is close to the second ring pipe in the flue gas reheater is provided with the second spray box, the second spray box is connected with third circulating pipe, be connected with condensate tank and cooling tower on the third circulating pipe; the utility model discloses wholly it is better to take off white effect, and firing equipment is little, initial investment is lower, also reduces the desulfurizing tower water consumption, has realized the reuse of water resource.
Description
Technical Field
The utility model belongs to the technical field of industrial waste gas administers, concretely relates to wet flue gas desulfurization takes off white device.
Background
The wet desulphurization is a desulphurization process commonly adopted in China, the flue gas is saturated wet flue gas with the temperature of 50-60 ℃ and the humidity of 100-200 g/Nm3, the average humidity of the atmosphere in China is only 9g/Nm3, and the humidity of the flue gas in the wet desulphurization is more than 10 times of the average humidity of the atmosphere. Because the ambient temperature is lower, the vapor in the wet flue gas condenses to form fog-like liquid drops, and the phenomenon of 'white smoke' is formed at the outlet of the chimney. In 2017, the atmospheric emission requirements of Zhejiang, Shanghai, Tianjin and the like are successively released, and the phenomena of gypsum rain, colored smoke plume and the like are eliminated by adopting smoke temperature control and other effective measures after wet desulphurization is implemented in industries such as steel mill sintering machines, coal-fired boilers, coking and the like.
Boiler flue gas in thermal power plants, petroleum refining, coking and other industries is subjected to desulfurization and denitrification treatment when being discharged. Among them, sodium desulfurization and ammonia desulfurization are the most widely used desulfurization methods in the current desulfurization methods. Because the temperature of the high-temperature flue gas is higher when the high-temperature flue gas enters the desulfurizing tower, violent heat and mass transfer can occur in the desulfurizing tower with the desulfurizing slurry, a large amount of water is evaporated while the flue gas is cooled, and the water vapor can be carried out of the desulfurizing tower along with the flue gas and is discharged through a chimney. The water vapor is mixed with the environmental atmosphere at the outlet of the chimney to form visual pollution. Meanwhile, water vapor contains a large amount of salts, which causes resource waste and environmental pollution.
However, in the ambient air with lower entering temperature, because the saturation humidity of the ambient air is lower, in the process of reducing the temperature of the flue gas, the water vapor in the flue gas can be condensed to form wet smoke plume, so that 'white smoke plume' is formed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wet flue gas desulfurization white device, which aims to solve the problem of forming white smoke plume in the flue gas exhaust air in the prior art in the background technology.
In order to achieve the above object, the utility model provides a following technical scheme: a wet desulphurization flue gas whitening device comprises a desulphurization tower, a whitening component and a chimney, wherein the whitening component comprises a flue gas inlet pipeline, a flue gas outlet of the flue gas inlet pipeline is connected with a flue gas inlet of the desulphurization tower, a flue gas cooler is arranged on the flue gas inlet pipeline, a first annular pipe is arranged in the flue gas cooler, a water inlet and a water outlet of the first annular pipe are connected with a second circulating water pipe, a heat circulating pump is arranged on the second circulating water pipe, a flue gas outlet of the desulphurization tower is connected with a flue gas outlet pipeline, a flue gas outlet of the flue gas outlet pipeline is connected with the chimney, a condenser is arranged on the flue gas outlet pipeline, a flue gas reheater is arranged on the flue gas outlet pipeline between the condenser and the chimney, a second annular pipe is arranged in the flue gas reheater, and a water inlet and a water outlet of the second annular pipe are connected with the second circulating water pipe, and a second spray box is arranged on one side, close to the second annular pipe, in the flue gas reheater, the second spray box is connected with a third circulating water pipe, and a condensate tank and a cooling tower are connected to the third circulating water pipe.
Preferably, a dust removal filter is arranged on one side, close to a smoke inlet, of the smoke inlet pipeline, and an induced draft fan is arranged on one side of the dust removal filter.
Preferably, a first spraying box is arranged in the desulfurizing tower, the first spraying box is connected with a first circulating water pipe outside the desulfurizing tower, the first circulating water pipe is connected with a circulating water pump, and the first circulating water pipe penetrates through the circulating water pump to be connected with an inner cavity close to the bottom end in the desulfurizing tower.
Preferably, the second circulating water pipe is provided with a steam auxiliary heater, and the second circulating water pipe is also provided with a water tank for adding water.
Preferably, a condensation circulating water pipe is arranged on the condenser and connected with the first circulating water pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the smoke cooler, the condenser and the smoke reheater are arranged to separate out water vapor in the temperature of smoke, so that a 'two-drop one-liter' process is realized, white smoke plume of sense organs is eliminated, indexes of pollution emissions such as dust, so2 and soluble salt after smoke is discharged are greatly reduced, condensed water generated by cooling is recycled, the purpose of primary energy conservation is achieved, the temperature of the smoke before desulfurization is reduced, the desulfurization consumption is reduced, the purpose of secondary energy conservation is achieved, the whole whitening effect is better, the heating equipment is small, and the initial investment is lower.
2. Through condenser condensation, separate out and collect, simply handle the back and can return the desulfurizing tower through condensation circulating water pipe and use, reduce the desulfurizing tower water consumption, realized the reuse of water resource.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the flue gas reheater of the present invention;
in the figure: 1-a desulfurizing tower, 11-a first spray box, 12-a first circulating water pipe, 13-a circulating water pump, 14-a demister, 2-a whitening device, 21-a smoke inlet pipeline, 22-a dust remover, 23-an induced draft fan, 24-a smoke cooler, 241-a first annular pipe, 25-a second circulating water pipe, 251-a heat circulating pump, 252-a steam auxiliary heater, 253-a water tank, 26-a smoke outlet pipeline, 27-a condenser, 271-a condensation circulating water pipe, 28-a smoke cooler, 281-a second annular pipe, 282-a second spray box, 29-a third circulating water pipe, 291-a condensed water tank, 292-a cooling tower and 3-a chimney.
Detailed Description
Referring to fig. 1-2, the present invention provides a technical solution: comprises a desulfurizing tower 1, a whiting component 2 and a chimney 3, wherein the whiting component 2 comprises a smoke inlet pipeline 21, a smoke outlet of the smoke inlet pipeline 21 is connected with a smoke inlet of the desulfurizing tower 1, a smoke cooler 24 is arranged on the smoke inlet pipeline 21, a first annular pipe 241 is arranged in the smoke cooler 24, a water inlet and a water outlet of the first annular pipe 241 are connected with a second circulating water pipe 25, a heat circulating pump 251 is arranged on the second circulating water pipe 25, a smoke outlet of the desulfurizing tower 1 is connected with a smoke outlet pipeline 26, a smoke outlet of the smoke outlet pipeline 26 is connected with the chimney 3, a condenser 27 is arranged on the smoke outlet pipeline 26, a reheater 28 is arranged on the smoke outlet pipeline 26 and positioned between the condenser 27 and the chimney 3, a second annular pipe 281 is arranged in the smoke reheater 28, a water inlet and a water outlet of the second annular pipe are connected with the second circulating water pipe 25, a second annular spraying box 282 is arranged on one side of the smoke reheater 28 close to, the second spray box 282 is connected to a third circulating water pipe 29, and the third circulating water pipe 29 is connected to a condensed water tank 291 and a cooling tower 292.
In the present embodiment, the flue gas cooler 24 disposed on the flue gas inlet pipe 21 has a high flue gas temperature and contains a large amount of water vapor, so that the industrial flue gas cools the flue gas when passing through the flue gas cooler 24, the first annular pipe 241 is a spiral fin pipe bundle, the low-temperature water in the first annular pipe 241 cools the flue gas, absorbs a large amount of heat, so as to reduce the temperature of the flue gas, the flue gas is close to the heat exchange surface area, the water vapor in the flue gas condenses, and simultaneously, the sensible heat release of the flue gas and the latent heat release of the water vapor condensation are realized, the flue gas passing through the flue gas cooler 24 enters the desulfurizing tower 1 through the flue gas inlet pipe 21, the flue gas is discharged from the flue gas outlet pipe 26 after being desulfurized, the flue gas entering the flue gas outlet pipe 26 passes through the condenser 27, the condenser 27 further condenses the flue gas to separate out water vapor, the flue gas passes through the condenser 27 and then enters the flue gas reheater 28, the second spray box 282 disposed on, the liquid in the second spraying box 282 absorbs heat after spraying the flue gas, the liquid after absorbing heat enters the condensed water tank 291 for collection, and then enters the second spraying box 282 through the third circulating water pipe 29 after being further cooled by the cooling tower 292 for realizing recycling, the second annular pipe 281 is arranged at the rear half part of the flue gas reheater 28, the second annular pipe 281 is a spiral fin pipe bundle, the heat absorbed by the flue gas cooler 24 is transferred to the flue gas reheater 28 through the second circulating water pipe 25 by the heat circulating pump 251, the temperature of the flue gas after being condensed and washed is increased, the temperature is increased after the flue gas is increased, the phase humidity is reduced, and the flue gas can not form white smoke plume after the air is discharged through the chimney 3.
Furthermore, a dust removal filter 22 is arranged on one side of the smoke inlet pipeline 21 close to the smoke inlet of the smoke inlet pipeline 21, and an induced draft fan 23 is arranged on one side of the dust removal filter 22.
In the present embodiment, the dust removal filter 22 on the smoke inlet pipeline 21 is used for primarily filtering dust particles in the smoke introduced into the smoke inlet pipeline 21, and the smoke after passing through the dust removal filter 22 is introduced into the desulfurization tower 1 by the induced draft fan 23 on the smoke inlet pipeline 21 again, so that the flow rate of the smoke is increased.
Further, be provided with first box 11 that sprays in the desulfurizing tower 1, first box 11 that sprays has first circulating pipe 12 at 1 external connection of desulfurizing tower, is connected with circulating water pump 13 on the first circulating pipe 12, and first circulating pipe 12 passes circulating water pump 13 and is connected with the inner chamber that is close to the bottom in the desulfurizing tower 1.
In this embodiment, first spray box 11 is used for carrying out the desulfurization cooling to the flue gas in the desulfurizing tower 1, and the liquid in first spray box 11 does not fully react with sulphur and subsides to the desulfurizing tower 1 bottom, and the effect by circulating water pump 13 by first circulating water pipe 12 of connecting at the bottom of desulfurizing tower 1 reenters first spray box 11 and carries out the desulfurization cooling to the flue gas, realizes reuse's effect, has practiced thrift the resource.
Further, a steam auxiliary heater 252 is provided on the second circulation water pipe 25, and a water tank 253 for adding water is also provided on the second circulation water pipe 25.
In the present embodiment, the steam auxiliary heater 252 is used to further heat the heat in the second circulating water pipe 25, so that the heat in the second circulating water pipe 25 can be transferred to the flue gas reheater 28 through water, the temperature of the flue gas to be exhausted is too high, so that white smoke plume is not formed after the flue gas is exhausted, and the water tank 253 is used to add water into the second circulating water pipe 25, thereby preventing the heat exchange function from being unable to be realized due to the loss of the heat-conducting water.
Further, the condenser 27 is provided with a condensation circulating water pipe 271, and the condensation circulating water pipe 271 is connected with the first circulating water pipe 12.
In this embodiment, the condensation circulating water pipe 271 can introduce water formed by condensation of flue gas in the condenser 27 into the first circulating water pipe 12, so that water in the air cooler 27 can be recycled, and water consumption of the desulfurization tower is reduced.
The utility model discloses a theory of operation and use flow: after the utility model is installed, the flue gas is cooled when the industrial flue gas passes through the flue gas cooler 24 arranged on the flue gas inlet pipeline 21, the water-cooled flue gas with lower temperature in the first annular pipe 241 absorbs a large amount of heat to realize the reduction of the temperature of the flue gas, the flue gas passing through the flue gas cooler 24 enters the desulfurizing tower 1 through the flue gas inlet pipeline 21, the flue gas is discharged from the flue gas outlet pipeline 26 after being desulfurized, the flue gas entering the flue gas outlet pipeline 26 passes through the condenser 27, the condenser 27 further condenses the flue gas to separate out vapor, the flue gas passes through the condenser 27 and then enters the flue gas reheater 28, the second spraying box 282 arranged at the front half part of the flue gas reheater 28 sprays the flue gas again, the heat absorbed in the flue gas cooler 24 passes through the heat circulating pump 251 and transfers the heat to the flue gas reheater 28 through the second circulating pipe 25, the temperature of the flue gas after condensation and flushing is improved, the temperature reduces the phase humidity after the flue gas is raised, so that the flue gas does not form white smoke plume after the flue gas is exhausted through the chimney 3.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A wet desulphurization flue gas whitening device comprises a desulphurization tower (1), a whitening component (2) and a chimney (3), and is characterized in that the whitening component (2) comprises a flue gas inlet pipeline (21), a flue gas outlet of the flue gas inlet pipeline (21) is connected with a flue gas inlet of the desulphurization tower (1), a flue gas cooler (24) is arranged on the flue gas inlet pipeline (21), a first annular pipe (241) is arranged in the flue gas cooler (24), a water inlet and a water outlet of the first annular pipe (241) are connected with a second circulating water pipe (25), a heat circulating pump (251) is arranged on the second circulating water pipe (25), a flue gas outlet of the desulphurization tower (1) is connected with a flue gas outlet pipeline (26), a flue gas outlet of the flue gas outlet pipeline (26) is connected with the chimney (3), a condenser (27) is arranged on the flue gas outlet pipeline (26), go out the tobacco pipe (26) and go up to be located condenser (27) with be provided with flue gas reheater (28) between chimney (3), be provided with second ring pipe (281) in flue gas reheater (28), the water inlet and the delivery port of second ring pipe with second circulating water pipe (25) are connected, one side that is close to second ring pipe (281) in flue gas reheater (28) is provided with the second and sprays box (282), the second sprays box (282) and is connected with third circulating water pipe (29), be connected with condensate tank (291) and cooling tower (292) on third circulating water pipe (29).
2. The wet desulfurization flue gas whitening device as recited in claim 1, characterized in that: the smoke inlet pipe (21) is provided with a dust removal filter (22) at one side close to the smoke inlet of the smoke inlet pipe (21), and an induced draft fan (23) is arranged at one side of the dust removal filter (22).
3. The wet desulfurization flue gas whitening device as recited in claim 2, characterized in that: be provided with first spray box (11) in desulfurizing tower (1), first spray box (11) be in desulfurizing tower (1) external connection has first circulating pipe (12), be connected with circulating water pump (13) on first circulating pipe (12), first circulating pipe (12) pass circulating water pump (13) with the inner chamber that is close to the bottom in desulfurizing tower (1) is connected.
4. The wet desulfurization flue gas whitening apparatus as recited in claim 3, characterized in that: the second circulating water pipe (25) is provided with a steam auxiliary heater (252), and the second circulating water pipe (25) is also provided with a water tank (253) for adding water.
5. The wet desulfurization flue gas whitening apparatus as recited in claim 4, characterized in that: and a condensation circulating water pipe (271) is arranged on the condenser (27), and the condensation circulating water pipe (271) is connected with the first circulating water pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922443771.9U CN211575159U (en) | 2019-12-30 | 2019-12-30 | Wet flue gas desulfurization white-removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922443771.9U CN211575159U (en) | 2019-12-30 | 2019-12-30 | Wet flue gas desulfurization white-removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211575159U true CN211575159U (en) | 2020-09-25 |
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ID=72550826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922443771.9U Expired - Fee Related CN211575159U (en) | 2019-12-30 | 2019-12-30 | Wet flue gas desulfurization white-removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211575159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115040952A (en) * | 2022-08-16 | 2022-09-13 | 河北鸿科碳素有限公司 | Carbon anode tail gas treatment equipment |
-
2019
- 2019-12-30 CN CN201922443771.9U patent/CN211575159U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115040952A (en) * | 2022-08-16 | 2022-09-13 | 河北鸿科碳素有限公司 | Carbon anode tail gas treatment equipment |
| CN115040952B (en) * | 2022-08-16 | 2022-11-04 | 河北鸿科碳素有限公司 | Carbon anode tail gas treatment equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |