CN206739343U - A kind of desulfurization fume dehumidification tapping equipment - Google Patents
A kind of desulfurization fume dehumidification tapping equipment Download PDFInfo
- Publication number
- CN206739343U CN206739343U CN201720270442.7U CN201720270442U CN206739343U CN 206739343 U CN206739343 U CN 206739343U CN 201720270442 U CN201720270442 U CN 201720270442U CN 206739343 U CN206739343 U CN 206739343U
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- air
- desulfurization fume
- hot
- blender
- desulfurization
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- Treating Waste Gases (AREA)
Abstract
A kind of desulfurization fume dehumidification tapping equipment, it is made up of with desulfurization fume blender air heater and hot-air, is connected by air leading-in conduit therebetween, it is characterised in that：Thermal source used in described air heater is the heat smoke before Low pressure steam or desulfurizing tower；The hot-air that boiler smoke is heated to 40 60 DEG C by the hot-air that the desulfurizing tower of FGD systems enters with desulfurization fume blender by air heater mixes, 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 utility model, water vapour content a large amount of acid raindrop being scattered when eliminating wet flue gas discharge around the white vapor plume and chimney of smoke stack emission mouth, improves surrounding environment by being down to undersaturated condition in saturation state in boiler smoke.The present apparatus is simple in construction, is not easily blocked, and does not corrode, and small investment, stable and reliable operation, there is application value.
Description
Technical field
Environmental chemical engineering technical field is the utility model is related to, especially a kind of desulfurization fume dehumidification tapping equipment.
Background technology
Coal-burning boiler desulfurization fume discharges, and some national regulations FGD flue gas desulfurization devices, its exhaust gas temperature is abroad
More than 72 DEG C, some countries such as Japan's regulation exhaust gas temperature is 90-110 DEG C, and China, which is not known, provides thermal power plant's FGD devices smoke evacuation
Temperature, white plume is also not unrestricted, therefore desulfurization fume discharge has two ways, that is, passes through 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.For flue gas after GGH, flue-gas temperature rises to more than 72 DEG C, contains vapor in flue gas
Amount is in undersaturated condition, therefore is 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 such as easily occurs stifled there is also some problems
Plug, corrosion are the major failure points of FGD systems, and GGH investments are high in addition, so also use wet flue gas discharge both at home and abroad, i.e., it is de-
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 the atmospheric environment of 500 meters of regional extents of chimney it is necessary to eliminating or reduce in smoke stack emission mouth
There is white vapor plume and acid rain, flue gas is spread faster.
The content of the invention
For problem above, problem to be solved in the utility model is to eliminate the white vapor plume and acid of smoke stack emission mouth
The desulfurization fume dehumidification tapping equipment of rain, it is to be mixed with about 50 DEG C of hot-air in dehumidification tapping equipment with desulfurization fume, makes
Water vapour content in desulfurization fume is changed into undersaturated condition, eliminates the white plume and acid rain of chimney outlet, improves
Chimney surrounding environment.
The technical solution of the utility model is achieved in the following ways：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,
It is characterized in that：Described air heater（AHE）Thermal source used is the heat smoke before Low pressure steam or desulfurizing tower
（FGI）；Boiler smoke（FGI）Pass through 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）For circular configuration, built-in two layers of perforated plate corrugated filler, orifice plate
Material is 316L steel or polypropylene, floor height 0.4-0.8m, and the filler is strengthening mixed effect.
Described air heater（AHE）By blower fan by the heat smoke before Low pressure steam or desulfurizing tower（FGI）Heat
Source sprays into hot-air and the desulfurization fume porch on desulfurization fume blender top, hot-air and desulfurization fume by injection gas distribution pipe
Blender（AFM）Device in gas flow rate be 5-8m/s, gas residence time 1-2s, the flow velocity in air leading-in conduit is 20-
25m/s。
The utility model, water vapour content is eliminated wet by being down to undersaturated condition in saturation state in boiler smoke
The a large amount of acid raindrop being scattered during fume emission around the white vapor plume and chimney of smoke stack emission mouth, improve ring around
Border.The present apparatus is simple in construction, is not easily blocked, and does not corrode, and small investment, stable and reliable operation, there is application value.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Embodiment
As shown in figure 1, the structural representation for the utility model embodiment 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 by air leading-in conduit,
Boiler smoke（FGI）Pass through the desulfurizing tower of FGD systems（DST）Enter dehumidification tapping equipment afterwards（RWDE）Hot-air and desulfurization cigarette
Gas blender（AFM）Mixed 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
Flue gas mixes.
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 are 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 0
DEG C, the air themperature of air blower outlet is 10 DEG C, and result of calculation is boiler smoke containing water vapor 5000m3/h before desulfurizing tower（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 full
It is 0.6% with water vapour content, if saturation degree is 40%, then water content is 48m3/h in air（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 must heat air needs
For 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
For 30000m3/h（Mark side）, it is 733kg/h equally to obtain required Low pressure steam amount finally, 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 do not reach the effect of needs still in saturation state.
As shown in Fig. 2 the structural representation for the utility model embodiment 2.Boiler smoke（FGI）Pass through FGD systems
Desulfurizing tower（DST）Enter dehumidification tapping equipment afterwards（RWDE）Hot-air and desulfurization fume blender（AFM）Mixed again with hot-air
Close, then flue gas is by discharge（FGO）Into chimney.Air is sent into air heater by air blower（AHE）Shell side heating
Enter hot-air and desulfurization fume blender afterwards（AFM）, the thermal source of air is heated using the heat smoke before desulfurizing tower（FGI）, heat
Flue gas walks air heater because of dust-laden（AHE）Tube side, then remove desulfurizing tower（DST）Desulfurization.
Using thermal source of 135 DEG C before desulfurizing tower of the heat smoke as 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
Measure as 100km3/h（Mark side）If it is 20000m3/h to be passed through air capacity（Mark side）When, heat smoke temperature reduces by 7.73 DEG C, air
Measure as 30000m3/h（Mark side）When, heat smoke temperature, which is down to 11.6 DEG C, can be heated to air 50 DEG C, and the cooling of heat smoke
And it is few, this case operating cost is relatively low, and can reduce the water that flue gas cool-down need to provide in desulfurizing tower.But investment is higher, because
Contain SO2, SO3 in heat smoke, to prevent from 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, be that the present invention is set on the right side of dotted line
The equipment combination of the desulfurization fume dehumidification tapping equipment of meter, mainly by air heater（AHE), mixed with hot-air with desulfurization fume
Clutch（AFM）Composition.
Claims (3)
1. a kind of desulfurization fume dehumidification tapping equipment, it is made up of air heater and hot-air with desulfurization fume blender, the two
Between connected by air leading-in conduit, it is characterised in that：Thermal source used in described air heater is Low pressure steam or de-
Heat smoke before sulphur tower；Boiler smoke is by the hot-air that the desulfurizing tower of FGD systems enters with desulfurization fume blender by empty
Hot-air heater is heated to 40-60 DEG C of hot-air mixing, and the ratio between quantity of hot air and desulfurization fume amount are 0.1-0.3m3/m3, are passed through
Enter chimney at desulfurization fume discharge.
A kind of 2. desulfurization fume dehumidification tapping equipment according to claim 1, it is characterised in that：Described hot-air is with taking off
Sulphur flue gas blender is circular configuration, and built-in two layers of perforated plate corrugated filler, orifice plate material is 316L steel or polypropylene, and floor height is
0.4-0.8m。
A kind of 3. desulfurization fume dehumidification tapping equipment according to claim 1, it is characterised in that：Described air heater
The thermal source of heat smoke before Low pressure steam or desulfurizing tower is sprayed into by hot-air and desulfurization fume by injection gas distribution pipe by blower fan
Gas flow rate is 5-8m/s in the device of the desulfurization fume porch on blender top, hot-air and desulfurization fume blender, 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 |
|---|---|---|---|
| CN201720270442.7U CN206739343U (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 |
|---|---|---|---|
| CN201720270442.7U CN206739343U (en) | 2017-03-20 | 2017-03-20 | A kind of desulfurization fume dehumidification tapping equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206739343U true CN206739343U (en) | 2017-12-12 |
Family
ID=60557844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720270442.7U Expired - Fee Related CN206739343U (en) | 2017-03-20 | 2017-03-20 | A kind of desulfurization fume dehumidification tapping equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206739343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838962A (en) * | 2017-03-20 | 2017-06-13 | 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 CN201720270442.7U patent/CN206739343U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838962A (en) * | 2017-03-20 | 2017-06-13 | 江苏正通宏泰股份有限公司 | A kind of desulfurization fume dehumidification tapping equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20190320 |