CN106838962A - A kind of desulfurization fume dehumidification tapping equipment - Google Patents
A kind of desulfurization fume dehumidification tapping equipment Download PDFInfo
- Publication number
- CN106838962A CN106838962A CN201710166491.0A CN201710166491A CN106838962A CN 106838962 A CN106838962 A CN 106838962A CN 201710166491 A CN201710166491 A CN 201710166491A CN 106838962 A CN106838962 A CN 106838962A
- Authority
- CN
- China
- Prior art keywords
- air
- desulfurization fume
- hot
- blender
- desulfurization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 54
- 230000023556 desulfurization Effects 0.000 title claims abstract description 54
- 239000003517 fume Substances 0.000 title claims abstract description 46
- 238000007791 dehumidification Methods 0.000 title claims abstract description 15
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 15
- 239000003546 flue gas Substances 0.000 claims abstract description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000779 smoke Substances 0.000 claims abstract description 25
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 239000002253 acid Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000003916 acid precipitation Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003256 environmental substance Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
- F23J2900/15081—Reheating of flue gases
Abstract
A kind of desulfurization fume dehumidification tapping equipment, is made up of air heater and hot-air with desulfurization fume blender, is connected by air leading-in conduit therebetween, it is characterised in that：Thermal source used by described air heater is Low pressure steam H2Heat smoke before O (V) or desulfurizing tower；Boiler smoke is mixed with desulfurization fume blender by the hot-air that the desulfurizing tower of FGD systems enters by the hot-air that air heater is heated to 40 60 DEG C, the ratio between quantity of hot air and desulfurization fume amount are 0.1 0.3m3/m3, by entering chimney at desulfurization fume discharge.The present invention, water vapour content is down to undersaturated condition by saturation state in boiler smoke, eliminates a large amount of acid raindrop being scattered around the white vapor plume and chimney of smoke stack emission mouthful when wet flue gas are discharged, and improves surrounding environment.Present apparatus simple structure, is not easily blocked, and does not corrode, small investment, and stable and reliable operation has application value.
Description
Technical field
The present invention relates to environmental chemical engineering technical field, especially a kind of desulfurization fume dehumidification tapping equipment.
Background technology
Coal-burning boiler desulfurization fume is discharged, abroad some national regulations FGD flue gas desulfurization devices, and its exhaust gas temperature is
More than 72 DEG C, some countries such as Japan's regulation exhaust gas temperature is 90-110 DEG C, and China is not known the smoke evacuation of regulation thermal power plant FGD devices
Temperature, is also not unrestricted to white plume, therefore desulfurization fume discharge has two ways, i.e., by GGH（After heat smoke and desulfurization
Flue gas heat-exchange unit）Discharge and wet flue gas discharge afterwards.In Generator Set limestone-gypsum method flue gas desulfurization imported unit,
Desulfurization fume after GGH using by discharging.After GGH, flue-gas temperature rises to more than 72 DEG C to flue gas, and vapor contains in making flue gas
Amount is in undersaturated condition, is thus advantageous to strengthen the diffusion of pollutant in flue gas, eliminates white vapor plume, reduces pollutant
Flooring concentration.So in urban population City Regions, GGH is still set, but GGH there is also some problems, such as easily occur stifled
Plug, corrosion are the major failure points of FGD systems, and GGH investments are high in addition, so also using wet flue gas discharge both at home and abroad, that is, are taken off
Flue gas is directly discharged by Wet chimney after sulphur, and exhaust gas temperature is about 50 DEG C, and water vapour content is in saturation state in flue gas.With
China administers the requirement of haze, improves 500 meters of atmospheric environments of regional extent of chimney it is necessary to eliminating or reducing in smoke stack emission mouthful
There is white vapor plume and acid rain, flue gas is spread faster.
The content of the invention
For problem above, the problem to be solved in the present invention is the white vapor plume and acid rain for eliminating smoke stack emission mouthful
Desulfurization fume dehumidification tapping equipment, is mixed with desulfurization fume in dehumidification tapping equipment with about 50 DEG C of hot-air, makes desulfurization
Water vapour content in flue gas is changed into undersaturated condition, eliminates the white plume and acid rain of chimney outlet, improves cigarette
Chimney surrounding environment.
The technical scheme is that be accomplished by the following way：A kind of desulfurization fume dehumidification tapping equipment, by air
Heater（AHE）With hot-air and desulfurization fume blender（AFM）Composition, is connected therebetween by air leading-in conduit, and it is special
Levy and be：Described air heater（AHE）Thermal source used is Low pressure steam H2Heat smoke before O (V) or desulfurizing tower
（FGI）；Boiler smoke（FGI）By the desulfurizing tower of FGD systems（DST）The hot-air of entrance and desulfurization fume blender（AFM）
By air heater（AHE）40-60 DEG C of hot-air mixing is heated to, the ratio between quantity of hot air and desulfurization fume amount are 0.1-
0.3m3/m3, at desulfurization fume discharge（FGO）Into chimney.
Described hot-air and desulfurization fume blender（AFM）It is circular configuration, built-in two-layer perforated plate corrugated filler, orifice plate
Material is 316L steel or polypropylene, and model 250X, floor height is 0.4-0.8m, and the filler is used to strengthen mixed effect.
Described air heater（AHE）By blower fan by Low pressure steam H2Heat smoke before O (V) or desulfurizing tower
（FGI）Thermal source the desulfurization fume porch on hot-air and desulfurization fume blender top, hot-air are sprayed into by injection gas distribution pipe
With desulfurization fume blender（AFM）Device in gas flow rate be 5-8m/s, gas residence time is 1-2s, in air leading-in conduit
Flow velocity is 20-25m/s.
The present invention, water vapour content is down to undersaturated condition by saturation state in boiler smoke, eliminates wet flue gas
The a large amount of acid raindrop being scattered around the white vapor plume and chimney of smoke stack emission mouthful during discharge, improve surrounding environment.This
Apparatus structure is simple, is not easily blocked, and does not corrode, small investment, and stable and reliable operation has application value.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Specific embodiment
As shown in figure 1, being the structural representation of the embodiment of the present invention 1.A kind of desulfurization fume dehumidification tapping equipment, by air
Heater（AHE）With hot-air and desulfurization fume blender（AFM）Composition, is connected therebetween, boiler by air leading-in conduit
Flue gas（FGI）By the desulfurizing tower of FGD systems（DST）Enter dehumidification tapping equipment afterwards（RWDE）Hot-air and desulfurization fume mix
Clutch（AFM）Mix with hot-air, then by desulfurization fume discharge（FGO）Remove chimney.Air is by air blower（AB）Deliver to
Air heater（AHE）40-60 DEG C is inside heated to, subsequently into hot-air and desulfurization fume blender（AFM）With desulfurization fume
Mixing.
In the present embodiment, using Low pressure steam（H2O (V)) make thermal source heating air, air themperature is risen to 50 DEG C, it is right
One 75t/h boiler, boiler smoke tolerance is 100km3/h（Mark side）Enter desulfurization tower flue gas containing water vapor 5%, desulfurizing tower outlet temperature
50 DEG C, now the saturated steam content of flue gas is 12.18%, if quantity of hot air is 20000m3/h（Mark side）, surrounding air is 0
DEG C, the air themperature of air blower outlet is 10 DEG C, and result of calculation is boiler smoke containing water vapor 5000m before desulfurizing tower3/h（Mark
Side）, flue gas after desulfurization amount is 108176m3/h（Mark side）, wherein containing water vapor amount 13176m3/h（Mark side）；0 DEG C of air, it is satisfied
It is 0.6% with water vapour content, if saturation degree is 40%, then water content is 48m in air3/h（Mark side）, air heater（AHE）
Using 150 DEG C of low-pressure steam, its condensation heat is 2118.5KJ/kg, calculates the Low pressure steam amount that heating air needs
It is 489kg/h, water vapour content is down to 10.32% by 12.18% in desulfurization fume after dehumidification tapping equipment, if being passed through air capacity
It is 30000m3/h（Mark side）, Low pressure steam amount needed for equally obtaining finally is 733kg/h, and water vapour content in desulfurization fume
9.59% can be then down to.In this example, if disabling vapor, desulfurization fume is mixed into cold air, then occurs having small part in flue gas
Water vapor condensation, the vapor of flue gas of discharging fume does not reach the effect of needs still in saturation state.
As shown in Fig. 2 being the structural representation of the embodiment of the present invention 2.Boiler smoke（FGI）By the desulfurization of FGD systems
Tower（DST）Enter dehumidification tapping equipment afterwards（RWDE）Hot-air and desulfurization fume blender（AFM）Mix with hot-air again, so
Flue gas is by discharge afterwards（FGO）Into chimney.Air sends into air heater by air blower（AHE）Shell side heating after enter
Hot-air and desulfurization fume blender（AFM）, the thermal source of air is heated using the heat smoke before desulfurizing tower（FGI）, heat smoke because
Dust-laden, therefore walk air heater（AHE）Tube side, then remove desulfurizing tower（DST）Desulfurization.
Using 135 DEG C before desulfurizing tower of heat smoke as the thermal source for heating air in the present embodiment, in air heater
Air is heated to 50 DEG C, then hot-air directly mixes in a mixer with desulfurization fume, to a 75t/h boiler, flue gas
It is 100km to measure3/h（Mark side）If being passed through air capacity for 20000m3/h（Mark side）When, 7.73 DEG C of heat smoke temperature reduction, air capacity
It is 30000m3/h（Mark side）When, air is heated to 50 DEG C by heat smoke temperature by being down to 11.6 DEG C, and the cooling of heat smoke is simultaneously
Seldom, this case operating cost is relatively low, and can reduce the water that flue gas cool-down in desulfurizing tower need to be provided.But invest higher, because of heat
Contain SO in flue gas2, SO3, to prevent producing corrosion close to dew point, therefore equipment material preferably uses 316L steel.
Dotted line left side is flue gas desulfurization device in Fig. 1 and Fig. 2（FGD）In desulfurizing tower, dotted line right side be the present invention set
The equipment combination of the desulfurization fume dehumidification tapping equipment of meter, mainly by air heater（AHE), mixed with desulfurization fume with hot-air
Clutch（AFM）Composition.
Claims (3)
1. a kind of desulfurization fume dehumidification tapping equipment, is made up of air heater and hot-air with desulfurization fume blender, the two
Between by air leading-in conduit connect, it is characterised in that：Thermal source used by described air heater is Low pressure steam H2O
(V) heat smoke or before desulfurizing tower；Hot-air and desulfurization fume blender that boiler smoke is entered by the desulfurizing tower of FGD systems
The hot-air for being heated to 40-60 DEG C by air heater mixes, and the ratio between quantity of hot air and desulfurization fume amount are 0.1-0.3m3/m
3, by entering chimney at desulfurization fume discharge.
2. a kind of desulfurization fume dehumidification tapping equipment according to claim 1, it is characterised in that：Described hot-air with it is de-
Sulphur flue gas blender is circular configuration, and built-in two-layer perforated plate corrugated filler, orifice plate material is 316L steel or polypropylene, model
250X, floor height is 0.4-0.8m.
3. a kind of desulfurization fume dehumidification tapping equipment according to claim 1, it is characterised in that：Described air heater
By blower fan by Low pressure steam H2The thermal source of the heat smoke before O (V) or desulfurizing tower is sprayed into hot-air and is taken off by injection gas distribution pipe
Gas flow rate is 5-8m/ in the device of the desulfurization fume porch on sulphur flue gas blender top, hot-air and desulfurization fume blender
S, gas residence time is 1-2s, and the flow velocity in air leading-in conduit is 20-25m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710166491.0A CN106838962A (en) | 2017-03-20 | 2017-03-20 | A kind of desulfurization fume dehumidification tapping equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710166491.0A CN106838962A (en) | 2017-03-20 | 2017-03-20 | A kind of desulfurization fume dehumidification tapping equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106838962A true CN106838962A (en) | 2017-06-13 |
Family
ID=59129903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710166491.0A Pending CN106838962A (en) | 2017-03-20 | 2017-03-20 | A kind of desulfurization fume dehumidification tapping equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106838962A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701717A (en) * | 2009-09-17 | 2010-05-05 | 西安热工研究院有限公司 | Heating process of low-temperature flue gas with wetting flue gas desulphurization |
| CN202915385U (en) * | 2012-11-14 | 2013-05-01 | 辽宁省电力有限公司电力科学研究院 | Mixed type smoke purifying and heating device |
| CN103591599A (en) * | 2013-11-21 | 2014-02-19 | 上海大学 | Discharged flue gas self-heating technology of wet flue gas desulfurization and desulfuration purified flue gas self-heating device |
| CN106048119A (en) * | 2016-07-25 | 2016-10-26 | 天津大学 | Venturi blast furnace oxygen mixer |
| CN206739343U (en) * | 2017-03-20 | 2017-12-12 | 江苏正通宏泰股份有限公司 | A kind of desulfurization fume dehumidification tapping equipment |
-
2017
- 2017-03-20 CN CN201710166491.0A patent/CN106838962A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701717A (en) * | 2009-09-17 | 2010-05-05 | 西安热工研究院有限公司 | Heating process of low-temperature flue gas with wetting flue gas desulphurization |
| CN202915385U (en) * | 2012-11-14 | 2013-05-01 | 辽宁省电力有限公司电力科学研究院 | Mixed type smoke purifying and heating device |
| CN103591599A (en) * | 2013-11-21 | 2014-02-19 | 上海大学 | Discharged flue gas self-heating technology of wet flue gas desulfurization and desulfuration purified flue gas self-heating device |
| CN106048119A (en) * | 2016-07-25 | 2016-10-26 | 天津大学 | Venturi blast furnace oxygen mixer |
| CN206739343U (en) * | 2017-03-20 | 2017-12-12 | 江苏正通宏泰股份有限公司 | A kind of desulfurization fume dehumidification tapping equipment |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |
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| WD01 | Invention patent application deemed withdrawn after publication |