CN208878263U - A kind of wet process of FGD spray absorber - Google Patents
A kind of wet process of FGD spray absorber Download PDFInfo
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- CN208878263U CN208878263U CN201821366255.XU CN201821366255U CN208878263U CN 208878263 U CN208878263 U CN 208878263U CN 201821366255 U CN201821366255 U CN 201821366255U CN 208878263 U CN208878263 U CN 208878263U
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- demister
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- tower body
- main pipe
- wet process
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Abstract
The utility model discloses a kind of wet process of FGD spray absorbers, including tower body, pallet, spraying layer, demister and rinse layer, the bottom of the tower body is provided with leakage fluid dram, and smoke inlet is provided on the tower body wall above the leakage fluid dram, is provided with outlet flue at the top of the tower body；Pallet, spraying layer and demister are disposed with inside the tower body from bottom to top, the spraying layer includes main pipe, branch pipe and nozzle, and the main pipe branch pipe arranged in a crossed manner is vertically mounted in main pipe, and the nozzle is vertically mounted on branch pipe；The demister is internally provided with multi-disc corrugated sheet, and flushing layer is provided between the demister.The absorption tower of the utility model is simple and reasonable, spray range is substantially increased by main pipe, branch pipe and nozzle mutually orthogonal relationship, while being provided with baffle type mist eliminator and rinsing layer, in the case where ensuring demisting high efficiency, guarantee the cleaning of demister, improves whole efficiency.
Description
Technical field
The utility model relates to technical field of desulfurization, specifically design a kind of wet process of FGD spray absorber.
Background technique
In order to control Sulfur Dioxide In The Atmosphere, have more than 200 sulfur dioxide control technologies at present.Flue gas desulfurization technique is
Using the sulfur dioxide in the absorbent or Capture by Sorbents flue gas of various alkalinity, convert it to relatively stable and mechanical point easy
From sulphur compound or elemental sulfur, to achieve the purpose that desulfurization.
Flue gas desulfurization technique can be divided into wet process and dry method, and wet process of FGD is to use liquid-absorbant washing flue gas to remove
The sulfur dioxide in flue gas is removed, is that most widely used, technique applies most sulfur methods, wet desulphurization skill in current practice
Art mainly includes lime (lime stone) method, Dual alkali, sodium method, magnesium processes, ammonia process, seawater method, phospho-ammonium fertilizer method etc..
Currently, having spray-absorption void tower, pallet tower, liquid using more absorption tower tower in desulfurization project at home
Column tower, injecting type bubble tower etc..In wet desulfurizing process, desulfurizing tower is the core equipment of wet method fume desulfurizing system, is absorbed
Height, operating cost of system of the desulfuration efficiency of tower etc., it is important to see absorption tower, tower internals and matched attached set
Whether standby design selection is rationally reliable.Running resistance is small in desulfurization project, absorption tower of convenient and reliable operation and tower internals
Arrangement form, will have biggish development prospect.
Chinese patent 201721159513.2 discloses a kind of fume desulfurating absorption tower, including pallet, spraying layer and ridge type
Demister, although spraying layer, using arranged in a crossed manner, spray needs to fix by supporting beam, in this way inside complexity tower body
Structure, while nozzle is directly installed in spray tube (main pipe), greatly reduces the spraying range of spray, and demisting in this way
Device use ridge type, such defogging effect is not high, and do not arrange in pairs or groups rinse layer in the case where, be easy fouling blockage, be unfavorable for cigarette
The discharge of gas, greatly reduces desulfuration efficiency.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of wet process of FGD spray absorber, solve existing
Absorption tower low efficiency, the problems such as structure is complicated, spraying range is small.
Technical problem to be solved in the utility model is realized using following technical scheme:
A kind of wet process of FGD spray absorber, including tower body, pallet, spraying layer, demister and flushing layer, the tower
The bottom of body is provided with leakage fluid dram, and smoke inlet, the top setting of the tower body are provided on the tower body wall above the leakage fluid dram
There is outlet flue；Pallet, spraying layer and demister are disposed with inside the tower body from bottom to top, the spraying layer is provided with 3
Layer, the spraying layer includes main pipe, branch pipe and nozzle, and described main pipe one end is fixed on tower body wall, and the other end is pierced by tower body, institute
State that main pipe is arranged in a crossed manner, the angle between the adjacent main pipe is 15 degree, and the branch pipe is vertically mounted in main pipe, and the nozzle is vertical
Directly it is mounted on branch pipe；The demister is provided with 2, and the demister is set as baffle type mist eliminator, the demister
It is internally provided with multi-disc corrugated sheet, flushing layer is provided between the demister.
As a kind of optimization of the utility model, the spacing of the adjacent spraying layer is 1.5-3.5m.
As a kind of optimization of the utility model, the demister with a thickness of 20mm-30mm.
As a kind of optimization of the utility model, multiple access holes are provided on the tower body wall.
As a kind of optimization of the utility model, the branch pipe quantity in the every main pipe is 4, on the every branch pipe
Nozzle quantity be 4.
As a kind of optimization of the utility model, the flushing layer includes first rinsing layer and second and rinsing layer, and described the
One flushing layer sprays cleaning solution upwards, realizes the cleaning to upper layer demister, and second cleaning layer sprays downwards cleaning solution, real
Now to the cleaning of lower layer's demister.
A kind of wet process of FGD spray absorber provided by the utility model, has the advantages that
(1) a kind of nozzle of wet process of FGD spray absorber provided by the utility model is vertically mounted on branch pipe,
The branch pipe is vertically mounted in main pipe, and the adjacent main pipe is arranged in a crossed manner, and angle is 15 degree, relatively traditional absorption tower, this
The absorption tower of utility model substantially improves spraying range, improves the desulfurization effect on absorption tower, improves efficiency.
(2) a kind of wet process of FGD spray absorber provided by the utility model is provided with flushing layer, and rinsing layer can be with
Timing is rinsed demister, greatly reduces the plugging rate of demister, guarantees that the flue gas on absorption tower is unimpeded.
(3) a kind of demister of wet process of FGD spray absorber provided by the utility model is arranged to baffle plate type and removes
Day with fog, the demister are internally provided with corrugated sheet, and the drop that mist and corrugated sheet collide and gathered arrives greatly its own generation
Gravity be more than gas climbing power and surface tension of liquid resultant force when, drop is just separated from waveform plate surface.
The structures that are folded to of demister corrugated sheet increase the chance that mist is captured more, and the mist not being removed passes through at next turning
It crosses identical effect and is captured, such repeated action, to substantially increase demisting efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the spraying layer distribution map of the utility model.
Appended drawing reference: 1, tower body；2, pallet；3, spraying layer；4, demister；5, first layer is rinsed；6, second layer is rinsed；7,
Leakage fluid dram；8, smoke inlet；9, outlet flue；10, main pipe；11, branch pipe；12, nozzle；13, access hole.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model:
As shown in Figure 1 and Figure 2, a kind of wet process of FGD spray absorber, including tower body 1, pallet 2, spraying layer 3, demisting
Device 4 and flushing layer, the bottom of the tower body 1 are provided with leakage fluid dram 7, are provided on 1 wall of tower body of 7 top of leakage fluid dram into cigarette
Mouth 8, the top of the tower body 1 is provided with outlet flue 9；Pallet 2, spraying layer 3 are disposed with inside the tower body 1 from bottom to top
With demister 4, the setting of spraying layer 3 haves three layers, and the spraying layer 3 includes main pipe 10, branch pipe 11 and nozzle 12, the main pipe
10 one end are fixed on 1 wall of tower body, and the other end is pierced by tower body 1, and the main pipe 10 is arranged in a crossed manner, the angle between the adjacent main pipe 10
Degree is 15 degree, and the branch pipe 11 is vertically mounted in main pipe 10, and the nozzle 12 is vertically mounted on branch pipe 11；The demister
2 are provided with, the demister 4 is set as baffle type mist eliminator 4, and the demister 4 is internally provided with multi-disc corrugated sheet, institute
It states and is provided with flushing layer between demister 4.
As a kind of optimization of the utility model, the spacing of the adjacent spraying layer 3 is 1.5-3.5m.
As a kind of optimization of the utility model, the demister 4 with a thickness of 20mm-30mm.
As a kind of optimization of the utility model, multiple access holes 13 are provided on 1 wall of tower body.
As a kind of optimization of the utility model, 11 quantity of branch pipe in the every main pipe 10 is 4, the every branch
12 quantity of nozzle on pipe 11 is 4.
As a kind of optimization of the utility model, the flushing layer includes the first flushing layer 5 and second rinses layer 6, described
First rinses the sprinkling cleaning solution upwards of layer 5, realizes the cleaning to upper layer demister 4, second cleaning layer sprays downwards cleaning
Liquid realizes the cleaning to lower layer's demister 4.
Working principle of the utility model is: flue gas enters desulfurizing absorption tower flue gas inlet, flue gas throughout completely entire absorption tower,
Then rise along bottom deceleration (3m/s) rotation, flowed by pallet 2, while encountering 3 layers of spraying layer, 3 large area rotary spray
Alkaline atomized drop out generates gas-liquid and rotates the turbulent space seethed, and gas-liquid-solid three-phase comes into full contact with, these alkali droplets
There is very big contact surface area, can effectively trap the sulfur dioxide molecule in exhaust gas, the sulfur dioxide molecule in exhaust gas is dissolved in
In alkali droplet, and neutralization reaction occurs with the alkaline kation in alkali droplet.
Demister 4 is taken away and risen to droplet a small amount of at this time by flue gas, and mist collides with corrugated sheet and is attached to
In waveform plate surface.The diffusion of mist, the gravitational settling of mist make mist form biggish drop and with gas in waveform plate surface
Stream moves forward to corrugated sheet turning, due to turn to centrifugal force and its with the rubbing action, suction-operated and liquid of corrugated sheet
Surface tension make drop increasing, until the drop gathered arrive greatly its own generation gravity be more than gas climbing power
When with the resultant force of surface tension of liquid, drop is just separated from waveform plate surface.4 corrugated sheet of demister are folded to knot more
Structure increases the chance that mist is captured, and the mist not being removed is captured at next turning by identical effect,
Such repeated action, to substantially increase demisting efficiency.Flue gas after final purification enters cigarette after tower top exhaust outlet summarizes
Chimney discharge.
Over time, demister 4 can deposit a small amount of dust and fouling, rinse layer timing at this time and open flushing valve
Door cleans demister 4.
A kind of wet process of FGD spray absorber provided by the utility model, has the advantages that
(1) a kind of nozzle 12 of wet process of FGD spray absorber provided by the utility model is vertically mounted on branch pipe 11
On, the branch pipe 11 is vertically mounted in main pipe 10, and the adjacent main pipe 10 is arranged in a crossed manner, and angle is 15 degree, relatively traditional
The absorption tower on absorption tower, the utility model substantially improves spraying range, improves the desulfurization effect on absorption tower, improves effect
Rate.
(2) a kind of wet process of FGD spray absorber provided by the utility model is provided with flushing layer, and rinsing layer can be with
Timing is rinsed demister 4, greatly reduces the plugging rate of demister 4, guarantees that the flue gas on absorption tower is unimpeded.
(3) a kind of demister 4 of wet process of FGD spray absorber provided by the utility model is arranged to baffle plate type
Demister 4, the demister 4 are internally provided with corrugated sheet, and the drop that mist and corrugated sheet collide and gathered arrives greatly its own
The gravity of generation be more than gas climbing power and surface tension of liquid resultant force when, drop is just separated down from waveform plate surface
Come.The structures that are folded to of 4 corrugated sheet of demister increase the chance that mist is captured more, and the mist not being removed is in next turning
Place is captured by identical effect, such repeated action, to substantially increase demisting efficiency.
It will be apparent to those skilled in the art that can technical solution as described above, and design makes various other
Corresponding change and deformation, and all these changes and deformation all should belong to the protection of the utility model claims
Within the scope of.
Claims (6)
1. a kind of wet process of FGD spray absorber, it is characterised in that: including tower body, pallet, spraying layer, demister and flushing
Layer, the bottom of the tower body are provided with leakage fluid dram, smoke inlet are provided on the tower body wall above the leakage fluid dram, the tower body
Top is provided with outlet flue；Pallet, spraying layer and demister, the spraying layer are disposed with inside the tower body from bottom to top
Setting haves three layers, and the spraying layer includes main pipe, branch pipe and nozzle, and described main pipe one end is fixed on tower body wall, and the other end is pierced by
Tower body, arranged in a crossed manner between the main pipe, the angle between the adjacent main pipe is 15 degree, and the branch pipe is vertically mounted in main pipe,
The nozzle is vertically mounted on branch pipe；The demister is provided with 2, and the demister is set as baffle type mist eliminator,
The demister is internally provided with multi-disc corrugated sheet, and flushing layer is provided between the demister.
2. wet process of FGD spray absorber according to claim 1, it is characterised in that: between the adjacent spraying layer
Away from for 1.5-3.5m.
3. wet process of FGD spray absorber according to claim 1, it is characterised in that: the demister with a thickness of
20mm-30mm。
4. wet process of FGD spray absorber according to claim 1, it is characterised in that: be provided on the tower body wall more
A access hole.
5. wet process of FGD spray absorber according to claim 1, it is characterised in that: the branch in the every main pipe
Pipe quantity is 4, and the nozzle quantity on the every branch pipe is 4.
6. wet process of FGD spray absorber according to claim 1, it is characterised in that: the flushing layer includes first
It rinsing layer and second and rinses layer, the first flushing layer sprays cleaning solution upwards, realizes the cleaning to upper layer demister, and described the
Two flushing layers spray downwards cleaning solution, realize the cleaning to lower layer's demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821366255.XU CN208878263U (en) | 2018-08-23 | 2018-08-23 | A kind of wet process of FGD spray absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821366255.XU CN208878263U (en) | 2018-08-23 | 2018-08-23 | A kind of wet process of FGD spray absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208878263U true CN208878263U (en) | 2019-05-21 |
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ID=66509800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821366255.XU Active CN208878263U (en) | 2018-08-23 | 2018-08-23 | A kind of wet process of FGD spray absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113617207A (en) * | 2021-07-27 | 2021-11-09 | 杭州航民热电有限公司 | Desulfurizing tower for graded ammonia addition |
-
2018
- 2018-08-23 CN CN201821366255.XU patent/CN208878263U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113617207A (en) * | 2021-07-27 | 2021-11-09 | 杭州航民热电有限公司 | Desulfurizing tower for graded ammonia addition |
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