CN208082204U - A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system - Google Patents
A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system Download PDFInfo
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- CN208082204U CN208082204U CN201820353012.6U CN201820353012U CN208082204U CN 208082204 U CN208082204 U CN 208082204U CN 201820353012 U CN201820353012 U CN 201820353012U CN 208082204 U CN208082204 U CN 208082204U
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- waste water
- desulfurization wastewater
- desulfurization
- white cigarette
- chimney
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- 239000002351 wastewater Substances 0.000 title claims abstract description 78
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 73
- 230000023556 desulfurization Effects 0.000 title claims abstract description 71
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 32
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 21
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- 230000008020 evaporation Effects 0.000 claims abstract description 6
- 239000000498 cooling water Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 11
- 238000002425 crystallisation Methods 0.000 abstract description 9
- 230000008025 crystallization Effects 0.000 abstract description 9
- 239000003546 flue gas Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model belongs to Energy-saving for Thermal Power Units technical field of emission reduction, discloses a kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system.The desulfurization wastewater includes waste water tank and desulfurizing tower with chimney white cigarette plumage coprocessing system, and waste water tank is communicated with waste water inlet pipeline, and the bottom of waste water tank is loaded with desulfurization wastewater, evaporator is equipped in desulfurization wastewater, the operating pressure of waste water tank is negative pressure；Desulfurizing tower is internally provided with desulfurization slurry, and desulfurization slurry circulates along evaporator.The utility model realizes the crystallization to waste water by using the heat of desulfurization slurry in desulfurizing tower, the cooling to slurries is also achieved simultaneously, and the reduction of slurry temperature can improve desulfuration efficiency, reduce desulfurization outlet saturated flue gas temperature, the water capacity for greatly reducing chimney inlet flue gas, to alleviate chimney white plume；Further, since the temperature of desulfurization slurry in evaporator will not be too high, to utilize low-temperature evaporation principle, the influence that fouling easily occurs for desulfurization wastewater is avoided.
Description
Technical field
The utility model is related to Energy-saving for Thermal Power Units technical field of emission reduction more particularly to a kind of desulfurization wastewater and chimney white cigarettes
Plumage coprocessing system.
Background technology
China is the country of a shortage of water resources, and shortage of water resources and water pollution problems, which have become, influences China's economy
With the main problem of social sustainable development.As country is to the pay attention to day by day of water resource, zero-discharge technology is in the world
It is widely applied.
Power Plant in China desulfurization equipment is usually wet method desulfurization method of limestone-gypsum in the prior art, to reuse
Desulphurization for Coal-fired Power Plant treated waste water, it is further it is necessary to be carried out to desulfurization wastewater to realize the real wastewater zero discharge of power plant
Advanced treating.Desulfurization wastewater advanced treating mode includes mainly following several at present：Natural Evaporating Ponds To The Atmosphere, membrane technology desalination, electrolysis
Desalination and evaporative crystallization etc..With current technology, the most thorough mode of Desulphurization for Coal-fired Power Plant wastewater treatment is exactly evaporative crystallization, will
Salt separating treatment in solid form, can just achieve the effect that zero-emission.
However, existing evaporative crystallization technique the shortcomings of more or less there is high energy consumption, easy foulings.
Meanwhile the flue gas system for not installing swinging GGH (Gas Gas Heater, gas-gas heat exchanger), due to warp
The flue gas being discharged from chimney after FGD (Flue Gas Desulphurization, desulfurizing tower) is in saturation state, in environment
Steam is condensed when temperature is relatively low can form the plume of white.Present white cigarette plumage Treatment process is big in the prevalence of system energy consumption, throws
The problems such as money height and flue gas heater seriously corroded.
With coal-fired thermal power generation pollutant emission require it is higher and higher, therefore, seek economical rationality, high-efficiency environment friendly, can
The multi-pollutant collaboration smoke processing system leaned on, it appears particularly important and urgent.
Utility model content
The purpose of this utility model is to provide a kind of desulfurization wastewaters and chimney white cigarette plumage coprocessing system, existing to solve
With the presence of desulfurization wastewater evaporative crystallization technique high energy consumption the problem of.
For this purpose, the utility model uses following technical scheme：
A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system, including：
Waste water tank is communicated with waste water inlet pipeline, and the bottom of the waste water tank is loaded with the desulfurization wastewater, described de-
Evaporator is equipped in sulphur waste water, the operating pressure of the waste water tank is negative pressure；
Desulfurizing tower, interior to be equipped with desulfurization slurry, the desulfurization slurry circulates along the evaporator.Preferably, the steaming
It is connected with slurries booster pump between hair device and the desulfurizing tower.
Preferably, the waste water tank is connected to condenser, and the condenser is equipped with pumped vacuum systems.
Preferably, the pumped vacuum systems is water-ring vacuum pump group.
Preferably, the waste water tank is connected to by jet chimney with the condenser.
Preferably, the condenser is additionally provided with cooling water booster pump, and the bottom of the condenser is equipped with drainage pump.
Preferably, the bottom of the waste water tank is equipped with crystal salt/concentrate output channel.
Preferably, the evaporator is dividing wall type heat exchanger.
Preferably, the condenser is direct contact heat exchanger.
Preferably, the condenser is dividing wall type heat exchanger.
The beneficial effects of the utility model：
The utility model realizes the crystallization to desulfurization wastewater by using the heat of desulfurization slurry in desulfurizing tower, while cold
But the desulfurization slurry after, which is back to desulfurization slurry pond or enters spraying layer, forms low temperature spraying layer, also achieves to desulfurization slurry
Cooling, used energy consumption is lower；And the reduction of desulfurization slurry temperature can reduce the water consume of desulfurization, improve desulfurization
Efficiency reduces desulfurization outlet saturated flue gas temperature, the water capacity of chimney inlet flue gas is greatly reduced, to alleviate chimney
White plume；Further, it since the temperature of desulfurization slurry in evaporator will not be too high, to utilize low-temperature evaporation principle, keeps away
Exempt from the influence that fouling easily occurs for desulfurization wastewater, reaches the advantageous effect of multi-pollutant collaboration processing.
Description of the drawings
Fig. 1 is the structural representation of a kind of desulfurization wastewater provided by the utility model and chimney white cigarette plumage coprocessing system
Figure；
Fig. 2 is the structural representation of another desulfurization wastewater and chimney white cigarette plumage coprocessing system provided by the utility model
Figure.
In figure：
1, waste water tank；2, evaporator device；3, slurries booster pump；4, condenser；5, cooling water booster pump；6, drainage pump；7,
Pumped vacuum systems；8, waste water inlet pipeline；9, jet chimney；10, crystal salt/concentrate output channel；11, desulfurizing tower；12, it takes off
Sulphur tower gas approach；13, desulfurizing tower exhaust pass；14, chimney；15, condenser pipe group.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of desulfurization wastewater provided by the utility model and chimney white cigarette plumage coprocessing system, including it is useless
Water tank 1 and desulfurizing tower 11, are connected between waste water tank 1 and desulfurizing tower 11 by evaporator 2, specifically, the waste water of 1 bottom of waste water tank
Pond is connect with the desulfurization slurry pond of 11 bottom of desulfurizing tower by evaporator 2, and slurries supercharging is additionally provided in the pipeline of evaporator 2
Pump 3 provides power, it is preferable that the slurries booster pump 3 is arranged for being delivered to evaporator 2 by desulfurization slurry pond to desulfurization slurry
In the arrival end of evaporator 2.
Specifically, the top of waste water tank 1 is equipped with jet chimney 9, and jet chimney 9 is connected to condenser 4, is set on condenser 4
There is pumped vacuum systems 7, the on-condensible gas in whole system is extracted out by pumped vacuum systems 7.Preferably, which is water
Circular vacuum pump group is negative pressure so as to make the operating pressure in waste water tank 1 and condenser 4, and preferably operating pressure is absolute
Pressure 3KPa~12KPa, it is easier to promote the flowing and condensation of the vapor that desulfurization wastewater is evaporated.Specifically, in waste water
The bottom of case 1 is equipped with crystal salt/concentrate output channel 10, for that will evaporate the crystal salt generated/concentrate discharge waste water tank.
Specifically, condenser 4 is equipped with the cooling water booster pump 5 for being pumped into cooling water in condenser 4, condenser 4
Bottom be equipped with for cooling tower (not shown) or desulfurization water supply tank will to be delivered to by 4 condensed water after cooling of condenser
At the water such as (not shown).It can be understood that the cooling water that condenser 4 can be directly pumped by cooling booster pump 5 is straight
Heat exchange is connect, condenser pipe group 15 can also be set in condenser 4, forms dividing wall type heat exchanger (as shown in Fig. 2, forming coil pipe
Formula or plank frame), and exchange heat with incoming vapor.
Specifically, evaporator 2 is dividing wall type heat exchanger, that is, forms coiled or plank frame, ensure that the biography of evaporator 2
Hot area, to be further ensured that the good graphite of corrosion resistance or ceramics may be used in the effect of heat transfer and good antiscale property, evaporator 2
Etc. nonmetallic materials, or Cu alloy material, in the present embodiment, evaporator 2 is preferably stainless steel.Due to evaporator
In 2 the temperature of desulfurization slurry will not too high (be usually 50 DEG C or so), to using low-temperature evaporation principle (i.e. evaporating temperature is low,
The fouling tendency of heat-transfer area is low), the influence that fouling easily occurs for desulfurization wastewater is avoided, multi-pollutant collaboration processing has been reached
Advantageous effect.To be further ensured that the effect of good antiscale property, it is preferable that laggard into waste water tank 1 by waste water inlet pipeline 8 in waste water
Row waste water sofening treatment such as precipitates the Ca in desulfurization wastewater using white lime-Method of Soda2+And Mg2+。
Specifically, desulfurizing tower 11 is equipped with desulfurizing tower gas approach 12 and desulfurizing tower exhaust pass 13, desulfurizing tower exhaust pass
13 are connected to chimney 14, realize the crystallization to desulfurization wastewater by using the heat of desulfurization slurry in desulfurizing tower 11, while cold
But the desulfurization slurry after, which is back to desulfurization slurry pond or enters spraying layer, forms low temperature spraying layer, also achieves to desulfurization slurry
Cooling so that the energy consumption of whole system is lower；And the reduction of desulfurization slurry temperature can reduce the water consume of desulfurization, improve
Desulfuration efficiency reduces desulfurization outlet saturated flue gas temperature, greatly reduces the water capacity of 14 inlet flue gas of chimney, reaches
The advantageous effect of multi-pollutant collaboration processing.It is computed, waste water tank 1 and 4 service pressure of condenser are absolute pressure 3KPa
~12KPa, the desulfurization slurry into waste water tank 1 are generally 50 DEG C or so, and desulfurizing tower exit gas temperature reduces by 1 DEG C~3 DEG C, greatly
It measures moisture to be precipitated in desulfurizing tower 11, the steam vapour amount that flue gas carries in reducing into chimney 14 significantly reduces chimney 14
White plume phenomenon.
The operation principle of the utility model is：Waste water tank 1 and condenser 4 are connected by jet chimney 9, and service pressure is
Negative pressure (such as absolute pressure 3KPa~12Kpa).Treated that desulfurization wastewater enters in waste water tank 1 for preliminarily softened, and waste water, which absorbs, to be steamed
The heat of desulfurization slurry is evaporated crystallization in hair device 2, and steam enters condenser 4, the cooling water that cooled water booster pump 5 is pumped into
Condensation, the condensed water of generation is sent to cooling tower or desulfurization water supply tank etc. by drainage pump 6 at water, and the on-condensible gas in system
Then it is evacuated the extraction of system 7.
In conclusion the technology path that the utility model uses can easily pass to avoid Conventional waste water evaporation and crystallization system
The high disadvantage of hot face fouling, steam consumption quantity, and realize multi-pollutant collaboration processing.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For the ordinary skill user of fields, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (10)
1. a kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system, which is characterized in that including：
Waste water tank (1) is communicated with waste water inlet pipeline (8), and the bottom of the waste water tank (1) is loaded with the desulfurization wastewater,
Evaporator (2) is equipped in the desulfurization wastewater, the operating pressure of the waste water tank (1) is negative pressure；
Desulfurizing tower (11), interior to be equipped with desulfurization slurry, the desulfurization slurry circulates along the evaporator (2).
2. desulfurization wastewater according to claim 1 and chimney white cigarette plumage coprocessing system, which is characterized in that the evaporation
Slurries booster pump (3) is connected between device (2) and the desulfurizing tower (11).
3. desulfurization wastewater according to claim 1 and chimney white cigarette plumage coprocessing system, which is characterized in that the waste water
Case (1) is connected to condenser (4), and the condenser (4) is equipped with pumped vacuum systems (7).
4. desulfurization wastewater according to claim 3 and chimney white cigarette plumage coprocessing system, the pumped vacuum systems (7) are
Water-ring vacuum pump group.
5. desulfurization wastewater according to claim 3 and chimney white cigarette plumage coprocessing system, which is characterized in that the waste water
Case (1) is connected to by jet chimney (9) with the condenser (4).
6. desulfurization wastewater according to claim 5 and chimney white cigarette plumage coprocessing system, which is characterized in that the condensation
Device (4) is additionally provided with cooling water booster pump (5), and the bottom of the condenser (4) is equipped with drainage pump (6).
7. desulfurization wastewater according to claim 1 and chimney white cigarette plumage coprocessing system, which is characterized in that the waste water
The bottom of case (1) is equipped with crystal salt/concentrate output channel (10).
8. desulfurization wastewater according to claim 1 and chimney white cigarette plumage coprocessing system, which is characterized in that the evaporation
Device (2) is dividing wall type heat exchanger.
9. the desulfurization wastewater and chimney white cigarette plumage coprocessing system, feature according to any one of claim 3~6 exist
In the condenser (4) is direct contact heat exchanger.
10. the desulfurization wastewater according to any one of claim 3~6 and chimney white cigarette plumage coprocessing system, feature
It is, the condenser (4) is dividing wall type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820353012.6U CN208082204U (en) | 2018-03-15 | 2018-03-15 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820353012.6U CN208082204U (en) | 2018-03-15 | 2018-03-15 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
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| Publication Number | Publication Date |
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| CN208082204U true CN208082204U (en) | 2018-11-13 |
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| CN201820353012.6U Active CN208082204U (en) | 2018-03-15 | 2018-03-15 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108159868A (en) * | 2018-03-15 | 2018-06-15 | 烟台龙源电力技术股份有限公司 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
-
2018
- 2018-03-15 CN CN201820353012.6U patent/CN208082204U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108159868A (en) * | 2018-03-15 | 2018-06-15 | 烟台龙源电力技术股份有限公司 | A kind of desulfurization wastewater and chimney white cigarette plumage coprocessing system |
| CN108159868B (en) * | 2018-03-15 | 2024-04-26 | 烟台龙源电力技术股份有限公司 | Desulfurization waste water and chimney white smoke plume cooperative treatment system |
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