CN206199000U - Desulfuration absorbing tower oxidation air spray gun - Google Patents
Desulfuration absorbing tower oxidation air spray gun Download PDFInfo
- Publication number
- CN206199000U CN206199000U CN201621066647.5U CN201621066647U CN206199000U CN 206199000 U CN206199000 U CN 206199000U CN 201621066647 U CN201621066647 U CN 201621066647U CN 206199000 U CN206199000 U CN 206199000U
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- CN
- China
- Prior art keywords
- oxidation air
- spray gun
- absorbing tower
- desulfuration absorbing
- lance pipe
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- 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.)
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- Gas Separation By Absorption (AREA)
Abstract
The utility model provides a kind of desulfuration absorbing tower oxidation air spray gun.Including：One lance pipe, with the main injection jet positioned at pipe end and is opened in multiple auxiliary spray holes of lance pipe side wall；It is arranged at the spiral agitator in lance pipe, including an installation axle and the propeller blade that is arranged in installation axle, the inwall of the lance pipe is fixed at the two ends of the installation axle.By the local flow improvement for aoxidizing empty spray gun structure, improve oxidation air utilization ratio, so as to lift desulfuration efficiency, oxidation fan power consumption is reduced whereby, suitable for carrying out transformation acquisition to existing equipment, while making electric power enterprise less input improvement expenses, it is possible to meet the requirement of energy-saving run and environmental emission standard.
Description
Technical field
The utility model is related to field of environment protection equipment, more particularly to Wet Flue Gas Desulfurization Technology field, and in particular to a kind of
Desulfuration absorbing tower oxidation air spray gun.
Background technology
China is one of coal production and consumer nation maximum in the world, and ratio of the coal in the energy in the structure is up to
80% or so.Therefore, the SO2 in coal-fired flue-gas is main SO2 pollution sources, and for air SO2Improvement then cigarette in a wet process
Based on desulfurization.The method is applied widely, and desulfuration efficiency is high, is the main sulfur method of China.Due to current electric power coal city
Field changes greatly, and as-fired coal sulfur is generally higher than desulfurization design load, the raising with country to atmosphere pollutants emission standardses, existing
There is desulphurization system to be difficult to meet operation power and environmental requirement.
And in wet desulphurization, the setting of oxidation air is extremely important, if oxidation air amount is not enough, can cause
CaSO3It is exceeded, cause crystallization difficult, gypsum dehydration effect is influenceed, and pipeline and equipment blocking are easily caused, eventually reduce de-
Sulphur efficiency.
Current Wet Fgd By Limestone system oxidation air duct arrangement mainly has two kinds of torch-type and ductwork type, this
Two kinds of arrangement technologies cut both ways.
(1) torch-type oxidation air, simple structure is less demanding to installation technology, runs, safeguards relatively simple,
It is not susceptible to spray gun to block and be broken, fault rate is relatively low.But, there is oxidative absorption blind in torch-type oxidation air pipe arrangement
Area, and blast that bubble is larger, absorptivity is relatively low.Torch-type oxidation air arrangement principle be：Oxidation air is via lance ejection
Enter in slurry pool of absorption tower, form the air pocket of rolling, at oxidation spray gun mouth by the agitator part chopping of rapid perturbations simultaneously
Push-in absorption tower central area, aoxidizes to the calcium sulfite in the slurries of absorption tower.
Understand, the maximum defect of torch-type oxidation air arrangement technology is：1) produce oxidation air bubble larger, slurry is not utilized
Liquid calcium sulfite absorbs；2) there is more serious oxidative absorption blind area.
(2) ductwork type oxidation air, relative to torch-type, complex structure, the installation technology higher, maintenance work of requirement
Amount is big, costly；And pipe network nozzle is easily blocked, because pipe network span is big, vibration often fracture causes oxidation effectiveness rapid
Subtract, gypsum runs dilute, desulfuration efficiency decline, has a strong impact on the safe operation of power environment protection facility.
To sum up, there are some defects in existing oxidation air device, be unfavorable for the mixing and diffusion of oxidation air and slurries,
Also, above two arrangement is both needed to require that the blower fan of oxidation air is in higher-wattage so that energy consumption remains high.
Utility model content
Regarding to the issue above, the purpose of this utility model is to provide a kind of desulfuration absorbing tower oxidation air spray gun.Pass through
The local flow improvement of the empty spray gun structure of oxidation, improves oxidation air utilization ratio, so as to lift desulfuration efficiency, oxidation fan is reduced whereby
Power consumption, it is adaptable to which transformation acquisition is carried out to existing equipment, while making electric power enterprise less input improvement expenses, it is possible to meet
The requirement of energy-saving run and environmental emission standard.
It is that, up to above-mentioned purpose, the specific technical scheme that the utility model is taken is：
A kind of desulfuration absorbing tower oxidation air spray gun, including：
One lance pipe, sprays with the main injection jet positioned at pipe end and the multiple auxiliary for being opened in lance pipe side wall
Hole；
It is arranged at the spiral agitator in lance pipe, including an installation axle and the spiral that is arranged in installation axle
The inwall of the lance pipe is fixed at blade, the two ends of the installation axle.
Further, the desulfuration absorbing tower oxidation air spray gun is installed in a desulfuration absorbing tower, and its lance pipe is attached
Closely it is disposed with a spiral agitator；The stirring axis direction one of the axis direction of the propeller blade and the spiral agitator
Cause.
Further, the two ends of the installation axle are consolidated by being arranged at two auxiliary spray holes of the both sides of lance pipe side wall
It is fixed.
Further, the distance of the centre distance main injection jet of the propeller blade is the 0.6 of the caliber of the lance pipe
~1.2 times.
Further, the auxiliary spray hole is opened in perforate section, and perforate section originates in lance pipe main injection jet, length
It is 1.5~2 times of the caliber of lance pipe.
Further, the percent opening of the perforate section is 15~30%, and open pore size is 10~20mm.
Further, the auxiliary spray hole in the perforate section is uniform in the outer circumference surface of perforate section.
Further, the aperture of each auxiliary spray hole in the perforate section is consistent.
Further, the percent opening in the perforate section is gradually reduced along the oxidation air injection direction of main injection jet.
Further, the aperture of the auxiliary spray hole in the perforate section gradually subtracts along the oxidation air injection direction of main injection jet
It is small.
By taking above-mentioned technical proposal, spiral agitator is installed additional, propeller blade itself need not configure power drive,
Under the spiral agitator agitation double reaction plus of oxidation air pressure and desulfuration absorbing tower, freely passive rotation is thus fully broken
The gas-liquid contact of broken larger bubble, oxidation reinforced air and slurries so that oxidation air is more effectively utilized, while in spray gun
The side wall of pipeline opens up auxiliary spray hole, allows oxidation air to become multiple perforates from single outlet and exports, and can form preferably oxidation
Air distribute, improve oxidation air absorbing reaction efficiency, to a certain extent reduce oxidation fan design air flow so that reduce because
The power consumption that oxidation fan is produced.
Brief description of the drawings
Fig. 1 is the structural representation of desulfuration absorbing tower oxidation air spray gun in the embodiment of the utility model one.
Fig. 2 is I portions enlarged diagram in Fig. 1.
Description of reference numerals：
1- desulfuration absorbing towers；2- lance pipes；3- spiral agitators；4- auxiliary spray holes；5- propeller blades；6- installation axles.
Specific embodiment
Operation principle：
The conventional oxidation air gun that desulfuration absorbing tower is configured, oxidation air is generally sprayed by one outlet, blasts gas
Bubble is larger, and absorptivity is relatively low, even if being rubbed air pocket by configuring spiral agitator in the outlet of oxidation air spray gun, aoxidizes
Air is still not reaching to maximize with the haptoreaction area of desulfuration absorbing tower slurries, it is impossible to realize that oxidation air is inhaled with desulfurization
The optimum contact reaction effect of tower slurries is received, in order to ensure oxidation effectiveness, it is necessary to increase the power of oxidation air blower fan, so
One will improve power consumption, not meet the original intention of energy-saving and emission-reduction.
And oxidation air spray gun of the present utility model is used, oxidation air not only sprays from a primary outlet, also from multiple
Auxiliary spray hole sprays, while propeller blade is configured, under oxidation air pressure and absorption tower agitator agitation double reaction plus, spiral shell
Rotation blade carries out passive rotation disturbance so that oxidation air bubble is broken into very small oxidation air in desulfuration absorbing tower slurries
Bubble, makes oxidation air fully be reacted with desulfuration absorbing tower slurry liquid contacts, so as to accelerate its diffusion in desulfuration absorbing tower slurries
Speed, reaches the effect of enhancing oxidation, while reducing system power consumption.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clear, complete description.
Embodiment 1：
As shown in Figures 1 and 2, the desulfuration absorbing tower oxidation air spray gun for providing in the present embodiment, including：
Lance pipe 2, sprays with the main injection jet positioned at pipe end and the multiple auxiliary for being opened in lance pipe side wall
Hole 4；
It is arranged at the spiral agitator in lance pipe 2, including installation axle 6 and the propeller blade that is arranged in installation axle
5, the inwall of lance pipe 2 is fixed at the two ends of installation axle 6.
By taking certain 2 × 300MW generator set desulfurization as an example, using some conventional oxidation air guns, the spray of only one of which oxidation air
Mouthful, oxidation air absorption tower agitator effect under degree of scatter it is low, it is necessary to oxidation fan flow be 10300Nm3/ h, pressure head
It is 96kPa, power consumption is 556kw.And the desulfuration absorbing tower oxidation air spray gun that same amount of above-described embodiment is described is arranged, tool
Body ground, opens up auxiliary spray hole, and auxiliary spray hole is opened in perforate section, and perforate section originates in lance pipe main injection jet, and length is
1.8 times of the caliber of lance pipe, the specification aperture of auxiliary spray hole is 15mm, and percent opening 20% or so sets propeller blade
A diameter of lance pipe diameter 60%, the spiral that configures at main injection jet in the axis direction of propeller blade and absorption tower stirs
Mix the axis direction of device 3 consistent, blade quantity is 3, the distance of the centre distance main injection jet of propeller blade is the pipe of lance pipe
0.9 times of footpath.Because oxidation is more abundant, sprayed slurry oxidative absorption rate about 15% is improved, oxidation fan flow can
It is reduced to 8250Nm3/ h, can be by the air quantity of blower fan reduction by 20%, and pressure head is 96kPa, and power consumption is 445kw；The reduction of separate unit power consumption
111kw, 2 total power consumptions for reducing 222kw, saves power consumption about 20%.
Embodiment 2：
By taking same 2 × 300MW generator set desulfurizations as an example, desulfuration absorbing tower oxidation air spray gun opens up auxiliary spray hole, auxiliary spray
Hole is opened in perforate section, and perforate section originates in lance pipe main injection jet, and length is 1.5 times of the caliber of lance pipe, auxiliary
The specification aperture of spray orifice is helped to be 30mm, percent opening 15% or so sets a diameter of lance pipe diameter of propeller blade
55%th, the axis direction of propeller blade and spiral agitator axis direction at main injection jet is configured in absorption tower consistent, blade
Quantity is 4, and the distance of the centre distance main injection jet of propeller blade is 1.2 times of the caliber of lance pipe.Due to oxidation
More fully, sprayed slurry oxidative absorption rate about 16% is improved, oxidation fan flow can be reduced to 8150Nm3/ h, can be by
The air quantity reduction by 22% of blower fan, pressure head is 96kPa, and power consumption is 435kw；The reduction of separate unit power consumption 121kw, 2 total reduction 242kw
Power consumption, save power consumption about 21%.
Embodiment 3：
By taking same 2 × 300MW generator set desulfurizations as an example, desulfuration absorbing tower oxidation air spray gun opens up auxiliary spray hole, auxiliary spray
Hole is opened in perforate section, and perforate section originates in lance pipe main injection jet, and length is 2 times of the caliber of lance pipe, is aided in
The specification aperture of spray orifice is 15mm, percent opening 10% or so, set a diameter of lance pipe diameter of propeller blade 60%,
With that spiral agitator axis direction at main injection jet is configured in absorption tower is consistent, blade quantity is the axis direction of propeller blade
3, the distance of the centre distance main injection jet of propeller blade is 0.6 times of the caliber of lance pipe.Because oxidation is more filled
Point, sprayed slurry oxidative absorption rate about 13% is improved, oxidation fan flow can be reduced to 7850Nm3/ h, can be by blower fan
Air quantity reduction by 18%, pressure head is 96kPa, and power consumption is 412kw；Separate unit power consumption reduction 94kw, 2 total power consumptions for reducing 188kw,
Save power consumption about 17%.
In above-described embodiment, the auxiliary spray hole in perforate section is uniform in the outer circumference surface of perforate section, also, in perforate section
The aperture of each auxiliary spray hole is consistent.
In some other embodiments, by adjusting the arrangement and percent opening of auxiliary spray hole, can be further
The reaction efficiency of oxidation air and slurries is improved, specific practice is：Percent opening in perforate section sprays along the oxidation air of main injection jet
Penetrating direction gradually reduces.The aperture of the auxiliary spray hole in perforate section is gradually reduced along the oxidation air injection direction of main injection jet.With
The gradually reduction of oxidation air pressure, is reduced the empty aperture of auxiliary spray and/or is reduced percent opening, adapt to pressure change, oxidation
The pressure change of air tends towards stability, and is acted on by the disturbance of propeller blade, rubbing, and oxidation air bubble is more small, size
It is homogeneous, be conducive to being fully contacted reaction, by engineering actual verification, above-mentioned adjustment mode is applied to three foregoing embodiments
In, power consumption can be further reduced, reduction amplitude is about 5%.
Obviously, described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.It is based on
Embodiment in the utility model, it is all that those of ordinary skill in the art are obtained under the premise of creative work is not made
Other embodiment, belongs to the scope of the utility model protection.
Claims (10)
1. a kind of desulfuration absorbing tower oxidation air spray gun, it is characterised in that including：
One lance pipe, with the main injection jet positioned at pipe end and is opened in multiple auxiliary spray holes of lance pipe side wall；
It is arranged at the spiral agitator in lance pipe, including an installation axle and the propeller that is arranged in installation axle
The inwall of the lance pipe is fixed at leaf, the two ends of the installation axle.
2. desulfuration absorbing tower oxidation air spray gun as claimed in claim 1, it is characterised in that the desulfuration absorbing tower oxidation is empty
Gas spray gun is installed in a desulfuration absorbing tower, and the lance pipe has been disposed about a spiral agitator；The propeller blade
Axis direction is consistent with the axis direction of the spiral agitator.
3. desulfuration absorbing tower oxidation air spray gun as claimed in claim 1, it is characterised in that the two ends of the installation axle pass through
Two auxiliary spray holes for being arranged at the both sides of lance pipe side wall are fixed.
4. desulfuration absorbing tower oxidation air spray gun as claimed in claim 1, it is characterised in that the centre-to-centre spacing of the propeller blade
It is 0.6~1.2 times of the caliber of the lance pipe with a distance from main injection jet.
5. desulfuration absorbing tower oxidation air spray gun as claimed in claim 1, it is characterised in that the auxiliary spray hole is opened in
Perforate section, perforate section originates in lance pipe main injection jet, and length is 1.5~2 times of the caliber of lance pipe.
6. desulfuration absorbing tower oxidation air spray gun as claimed in claim 5, it is characterised in that the percent opening of the perforate section is
15~30%, open pore size is 10~20mm.
7. desulfuration absorbing tower oxidation air spray gun as claimed in claim 5, it is characterised in that the auxiliary spray in the perforate section
Hole is uniform in the outer circumference surface of perforate section.
8. the desulfuration absorbing tower oxidation air spray gun as described in claim 5 or 7, it is characterised in that each in the perforate section
The aperture of auxiliary spray hole is consistent.
9. desulfuration absorbing tower oxidation air spray gun as claimed in claim 5, it is characterised in that the percent opening in the perforate section
Gradually reduced along the oxidation air injection direction of main injection jet.
10. the desulfuration absorbing tower oxidation air spray gun as described in claim 5 or 9, it is characterised in that auxiliary in the perforate section
The aperture of spray orifice is helped to be gradually reduced along the oxidation air injection direction of main injection jet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621066647.5U CN206199000U (en) | 2016-09-20 | 2016-09-20 | Desulfuration absorbing tower oxidation air spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621066647.5U CN206199000U (en) | 2016-09-20 | 2016-09-20 | Desulfuration absorbing tower oxidation air spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206199000U true CN206199000U (en) | 2017-05-31 |
Family
ID=58761291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621066647.5U Expired - Fee Related CN206199000U (en) | 2016-09-20 | 2016-09-20 | Desulfuration absorbing tower oxidation air spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206199000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107998863A (en) * | 2017-11-28 | 2018-05-08 | 江苏民生重工有限公司 | A kind of efficient oxidation wet desulphurization device |
-
2016
- 2016-09-20 CN CN201621066647.5U patent/CN206199000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107998863A (en) * | 2017-11-28 | 2018-05-08 | 江苏民生重工有限公司 | A kind of efficient oxidation wet desulphurization device |
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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: 20170531 Termination date: 20210920 |