CN208599472U - A kind of flue gas takes off white device - Google Patents
A kind of flue gas takes off white device Download PDFInfo
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- CN208599472U CN208599472U CN201821212487.XU CN201821212487U CN208599472U CN 208599472 U CN208599472 U CN 208599472U CN 201821212487 U CN201821212487 U CN 201821212487U CN 208599472 U CN208599472 U CN 208599472U
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- flue gas
- economizer
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- white device
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Abstract
The utility model discloses a kind of flue gases to take off white device, belongs to fume treatment technical field.It includes: economizer, the first deduster, desulfurizing tower, wet electrical dust precipitator, flue gas heater that the flue gas of the utility model, which takes off white device,；Wherein, the outlet pipeline connection of the inlet pipeline of economizer and flue gas heater, the outlet pipeline of economizer and the inlet pipeline connection of flue gas heater.The thermal resource of high-temperature flue gas is efficiently used, the effective use of flue gas itself heat source is realized by thermal cycle twice, reaches flue gas and takes off white effect, reduce energy consumption, reduce cost, improve enterprise competitiveness.
Description
Technical field
The utility model relates to a kind of flue gases to take off white device, belong to fume treatment technical field.
Background technique
The smoke evacuation of the coal-burning boiler of steam power plant, temperature contain particulate matter (calcium carbonate CaCO generally at 135 DEG C or so3Equal dirt
Soil), sulfur dioxide SO2, nitrogen oxides NOX, sulfur trioxide SO3And other air, steam etc., if directly passing through chimney
Discharge, generation environment is polluted, it is therefore desirable to is dusted to flue gas, the processing such as desulfurization.Desulfurizing tower treated flue gas, generally
Temperature is reduced to 50-55 DEG C or so, if directly discharged to the flue gas of 50-55 DEG C of temperature, the gas of exclusion is in white haze shape
State, still to neighbouring resident with the heavy-polluted bad mental impression of discharge gas.In order to solve this problem, entering chimney row
Before putting, de- white effect (seeming will not be in white haze) can be only achieved after needing that flue-gas temperature is made to reach 80-85 DEG C or more.
Flue gas is taken off white, current processing mode it is general there are two types of.One is directly add to the flue gas before discharge
Heat treatment (such as directly heat or heat exchanger add water heat exchange etc.), there is the problems such as energy consumption is high；Another kind is, using initial
High-temperature flue gas flue gas is heated as the heat transferring medium of heat exchanger, still, the dew point of usual flue gas at 80 DEG C hereinafter, make
When being exchanged heat for 50-55 DEG C of the flue gas that the initial high-temperature flue gas and desulfurizing tower of heat transferring medium come out, necessarily have in 80 DEG C
When following, this when, moisture, dust in flue gas can condense, and pipeline is easy to happen blocking over time.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of flue gas and takes off white device, by by flue gas heater with
Economizer is connected, and effectively take off to flue gas white.
The utility model aim be to provide a kind of flue gas take off white device include: economizer, it is the first deduster, desulfurizing tower, wet
Formula electric precipitator, flue gas heater；Wherein, the inlet pipeline of economizer and the outlet pipeline connection of flue gas heater, economizer
Outlet pipeline and flue gas heater inlet pipeline connection.
In some embodiments, the flue gas takes off the economizer of white device, the first deduster, desulfurizing tower, wet type electricity and removes
Dirt device, flue gas heater are set gradually.
In some embodiments, first deduster is electrostatic precipitator.
In some embodiments, first deduster is bag filter.
In some embodiments, circulating pump is housed between the economizer and flue gas heater, is used for control loop water
Speed.
In some embodiments, the desulfurizing tower is provided with slurry circulating pump, for controlling serum recycle speed.
In some embodiments, the economizer is low-level (stack-gas) economizer or low low-level (stack-gas) economizer.
In some embodiments, the desulfurizing tower sprays desulphurization circulating slurries containing spray equipment.
In some embodiments, the economizer and the heat transferring medium of flue gas heater connection are water, initial access
Water temperature is at 80-85 DEG C or so.
Working principle of the utility model is:
High-temperature flue gas (generally at 135 DEG C or so) first passes through economizer and is cooled down (110 DEG C or so), in this case, cigarette
Particulate matter in gas will coagulate, while make it possible to remove most of particulate matter, sulfur trioxide SO by the first deduster3
It can get off with depositions that reacts such as dust calcium carbonate, then be dusted through the first deduster, eliminate the major part in flue gas
Particulate matter and SO3.Further, flue gas is by desulfurizing tower, and the loop slurry of desulfurizing tower spray is to sulfur dioxide in flue gas SO2Into
Row removal, from desulfurizing tower come out flue gas in also contain a small amount of molecule and calcium sulfate etc., by wet electrical dust precipitator into
The removal of one step.Under normal circumstances, 50-55 DEG C or so is reduced to from the flue-gas temperature that wet electrical dust precipitator comes out.
In the utility model, by the outlet pipeline connection of the inlet pipeline of economizer and flue gas heater, economizer go out
The inlet pipeline connection of water lines and flue gas heater.Heat transferring medium-water temperature that the inlet pipeline of economizer is come in is in 60-
70 DEG C or so, carrying out cooling processing by the initial high-temperature flue gas (135 DEG C or so) to high specific heat capacity (is reduced to flue-gas temperature
110 DEG C or so), the water temperature of the outlet pipeline of economizer is increased to 90-95 DEG C or so.Economizer outlet pipeline directly adds with flue gas
The inlet pipeline connection of hot device is changed through flue gas heater with 50-55 DEG C or so of the flue gas come out from wet electrical dust precipitator
Heat, so that the flue-gas temperature before discharge reaches 80-85 DEG C (being higher than flue gas cloud point, reach de- white effect), while flue gas heater
In water temperature drop to 60-70 DEG C, the outlet pipeline through flue gas heater continues cycling through the water inlet as economizer.
The advantages of the utility model and effect:
In the utility model, by the outlet pipeline connection of the inlet pipeline of economizer and flue gas heater, economizer go out
The inlet pipeline connection of water lines and flue gas heater.The water of economizer inlet pipeline input is changed with initial high-temperature flue gas
Heat reduces high-temperature flue-gas, and the temperature of water rises；Economizer outlet pipeline directly joins with the inlet pipeline of flue gas heater
Logical, the flue gas that the water for exporting economizer comes out with wet electrical dust precipitator exchanges heat, and is warming up to flue gas higher than flue gas cloud point,
Reach de- white effect, the outlet pipeline through flue gas heater continues cycling through the water inlet as economizer.By the heat money of high-temperature flue gas
Source effective use, the effective use of flue gas itself heat source is realized by thermal cycle twice, reduces energy consumption, reduces cost, improves enterprise
Industry competitiveness.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that flue gas takes off white device.
Figure label: 1- flue, 2- economizer, the first deduster of 3-, 4- desulfurizing tower, 5- slurry circulating pump, 6- circulating pump,
7- wet electrical dust precipitator, 8- flue gas heater, 9- chimney.
Specific embodiment
Here is that the utility model is specifically described.
Embodiment 1
As shown in Figure 1, a kind of flue gas take off white device include: economizer, the first deduster, desulfurizing tower, wet electrical dust precipitator,
Flue gas heater；Wherein, the outlet pipeline connection of the inlet pipeline of economizer and flue gas heater, economizer outlet pipeline with
The inlet pipeline connection of flue gas heater.
Add specifically, the flue gas takes off the economizer of white device, the first deduster, desulfurizing tower, wet electrical dust precipitator, flue gas
What hot device was set gradually.
Specifically, first deduster is electrostatic precipitator.
Specifically, first deduster is bag filter.
Specifically, the economizer is low-level (stack-gas) economizer or low low-level (stack-gas) economizer.
Specifically, the desulfurizing tower sprays desulphurization circulating slurries containing spray equipment.
Specifically, the economizer and the heat transferring medium of flue gas heater connection are water, the water temperature of initial access is in 80-85
DEG C or so.
Although the utility model has been described by way of example and in terms of the preferred embodiments, it is not intended to limit the utility model, any
Person skilled in the art can do various change and modification, therefore this without departing from the spirit and scope of the utility model
The protection scope of utility model should subject to the definition of the claims.
Claims (8)
1. a kind of flue gas takes off white device, which is characterized in that it includes: economizer, the first deduster, desulfurization that the flue gas, which takes off white device,
Tower, wet electrical dust precipitator, flue gas heater；Wherein, the outlet pipeline connection of the inlet pipeline of economizer and flue gas heater, province
The outlet pipeline of coal device and the inlet pipeline connection of flue gas heater.
2. flue gas according to claim 1 takes off white device, which is characterized in that first deduster is electrostatic precipitator.
3. flue gas according to claim 1 takes off white device, which is characterized in that first deduster is bag filter.
4. flue gas according to claim 1 takes off white device, which is characterized in that the economizer is low-level (stack-gas) economizer or low
Low-level (stack-gas) economizer.
5. flue gas according to claim 1 takes off white device, which is characterized in that the desulfurizing tower contains spray equipment, spray
Desulphurization circulating slurries.
6. flue gas according to claim 1 takes off white device, which is characterized in that filled between the economizer and flue gas heater
There is circulating pump.
7. flue gas according to claim 1 takes off white device, which is characterized in that the desulfurizing tower is provided with slurry circulating pump.
8. flue gas according to claim 1 takes off white device, which is characterized in that the economizer and flue gas heater connection
Heat transferring medium is water, and the water temperature of initial access is at 60-70 DEG C or so.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212487.XU CN208599472U (en) | 2018-07-27 | 2018-07-27 | A kind of flue gas takes off white device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212487.XU CN208599472U (en) | 2018-07-27 | 2018-07-27 | A kind of flue gas takes off white device |
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| Publication Number | Publication Date |
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| CN208599472U true CN208599472U (en) | 2019-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939894A (en) * | 2018-07-27 | 2018-12-07 | 常州市新港热电有限公司 | A kind of flue gas takes off white device and method |
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2018
- 2018-07-27 CN CN201821212487.XU patent/CN208599472U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939894A (en) * | 2018-07-27 | 2018-12-07 | 常州市新港热电有限公司 | A kind of flue gas takes off white device and method |
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