CN220071243U - Flue gas desulfurization absorption tower - Google Patents
Flue gas desulfurization absorption tower Download PDFInfo
- Publication number
- CN220071243U CN220071243U CN202321320286.2U CN202321320286U CN220071243U CN 220071243 U CN220071243 U CN 220071243U CN 202321320286 U CN202321320286 U CN 202321320286U CN 220071243 U CN220071243 U CN 220071243U
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- CN
- China
- Prior art keywords
- tower body
- distribution pipe
- flue gas
- spray
- spray head
- 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.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000003546 flue gas Substances 0.000 title claims abstract description 38
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 28
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 28
- 230000023556 desulfurization Effects 0.000 title claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 68
- 238000009826 distribution Methods 0.000 claims abstract description 63
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 238000002425 crystallisation Methods 0.000 claims abstract description 5
- 230000008025 crystallization Effects 0.000 claims abstract description 5
- 238000011010 flushing procedure Methods 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims 4
- 239000007788 liquid Substances 0.000 abstract description 21
- 238000005507 spraying Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003595 mist Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a flue gas desulfurization absorption tower, which comprises a tower body, wherein a cavity of the tower body is divided into a crystallization area, an oxidation area and an absorption area from bottom to top, an air inlet is formed in the middle of the tower body corresponding to the oxidation area, a flue gas outlet is formed in the top of the tower body, a demister is arranged at the top of the absorption area, a spraying assembly is arranged below the demister, the spraying assembly comprises a distribution pipe network and a spray head group, the distribution pipe network uniformly extends to all positions of the section of the tower body, the spray head group is uniformly and movably arranged at all positions of the distribution pipe network, and spray angles of spray heads close to the side wall of the tower body are limited and rotated by a certain angle so as to prevent atomized liquid sprayed by the spray heads from directly spraying to the side wall of the tower body. The flue gas desulfurization absorption tower provided by the utility model has the effect of preventing the spray head from directly spraying liquid to the side wall of the tower body.
Description
Technical Field
The utility model relates to the technical field of flue gas purification, in particular to a flue gas desulfurization absorption tower.
Background
In industrial production, a large amount of flue gas is discharged, and in order to meet the national emission standard, the flue gas needs to be discharged after desulfurization, and the flue gas desulfurization refers to the removal of sulfur oxides SO2 and SO3 from flue gas or other industrial waste gases.
Limestone gypsum wet desulfurization is the most important technical means for controlling SO2 pollution, and more than 97% of newly built power plants in China adopt wet desulfurization modes. The wet flue gas desulfurization process flow, form and mechanism of the world are different, mainly uses slurry such as limestone (CaCO 3)/lime (CaO), sodium carbonate (MgO), ammonia water (NH 3) and the like as a detergent, and washes the flue gas in a reaction tower SO as to remove SO2 in the flue gas.
The desulfurizing tower is generally designed into a countercurrent mode, and small liquid drops falling in a spraying way can be supported to a certain extent by rising flue gas, so that the residence time of the liquid drops in an absorption area is prolonged, the sufficient contact between the flue gas and an absorbent is enhanced, and the desulfurizing efficiency is improved.
In the spraying process, the spray heads positioned close to the side wall of the tower body can inevitably spray part of liquid on the side wall of the tower body, and based on the problems, the spraying assembly is continuously improved.
Disclosure of Invention
Aiming at the problems, a flue gas desulfurization absorption tower is provided at present, and aims to solve the problems existing in the prior art.
The specific technical scheme is as follows:
the utility model provides a flue gas desulfurization absorption tower, includes the tower body, the tower body cavity is from supreme crystallization district, oxidation district and the absorption district of dividing into down, the air inlet has been seted up to the tower body middle part corresponding oxidation district department, flue gas outlet has been seted up at the tower body top, the absorption district top is provided with the defroster, the defroster below is provided with spray assembly, spray assembly package distribution pipe network and shower nozzle group, the distribution pipe network evenly extends to tower body cross-section everywhere, the even activity of shower nozzle group sets up everywhere in the distribution pipe network, the distribution pipe network includes main distribution pipe and a plurality of secondary distribution pipe, the through-hole inside and outside intercommunication has been seted up to the tower body lateral wall, the one end of main distribution pipe passes the through-hole extends to the outside of tower body communicates with outside thick liquid circulating device, the other end of main distribution pipe extends to the tower body just faces the lateral wall of through-hole, a plurality of secondary distribution pipe symmetry set up in main distribution pipe both sides, secondary distribution pipe extends to near respectively the tower body inner chamber lateral wall.
The beneficial effect of above-mentioned scheme: the main distributing pipe is used for conveying the spraying liquid to each secondary distributing pipe through the slurry circulating device until the spraying liquid is sprayed out through each spray head.
The flue gas desulfurization absorption tower is characterized in that the spray head group comprises a plurality of vertical spray heads and a plurality of inclined spray heads, the inclined spray heads are arranged at the positions, close to the side wall of the tower body, of the secondary distribution pipe, and the vertical spray heads are uniformly distributed at the rest positions of the secondary distribution pipe.
The beneficial effect of above-mentioned scheme: the vertical spray head sprays atomized liquid downwards vertically, a certain included angle is formed between the vertical spray head and the side wall of the tower body when the inclined spray head is installed, the spraying direction deviates from the side wall of the tower body, and the atomized liquid is prevented from being sprayed onto the side wall of the tower body as much as possible.
The flue gas desulfurization absorption tower is characterized in that the injection angle of the vertical spray nozzle is 120 degrees, the vertical spray nozzle faces downwards vertically, the injection angle of the inclined spray nozzle is 90 degrees, and the inclined spray nozzle rotates 45 degrees towards the side far away from the side wall of the tower body.
The beneficial effect of above-mentioned scheme: because the spray angle of the inclined spray head is 90 degrees, and the inclined angle is 45 degrees, when the inclined spray head sprays, the edge of the sprayed atomization area is parallel to the side wall of the tower body, so that atomized liquid can be prevented from being sprayed onto the side wall of the tower body as much as possible.
The flue gas desulfurization absorption tower is characterized in that the spraying assembly further comprises a plurality of supporting bodies with different lengths, the supporting bodies are distributed at the lower part of the distribution pipe network in a staggered mode, so that the distribution pipe network is supported, and the ends, close to the side walls of the tower bodies, of the supporting bodies are connected with the corresponding side walls of the tower bodies.
The beneficial effect of above-mentioned scheme: the supporting net is formed by the supporting bodies together, so that the rising of the smoke is not influenced as much as possible on the basis of supporting the distribution net.
The flue gas desulfurization absorption tower is characterized in that a flushing nozzle is arranged on the end face of one end of the secondary distribution pipe close to the side wall of the tower body, and a flushing pipe for communicating the flushing nozzle with an external flushing source is arranged in the distribution pipe network.
The beneficial effect of above-mentioned scheme: the convenient user regularly washes the tower body lateral wall through the shower nozzle, prevents to appear crystallization on the tower body lateral wall.
In summary, the beneficial effects of this scheme are:
in the flue gas desulfurization absorption tower provided by the utility model, the spray angle of the spray head close to the side wall of the tower body is limited, and the spray head is rotated by a certain angle, so that atomized liquid sprayed by the spray head is prevented from being directly sprayed to the side wall of the tower body. The flue gas desulfurization absorption tower provided by the utility model has the effect of preventing the spray head from directly spraying liquid to the side wall of the tower body.
Drawings
FIG. 1 is a schematic diagram showing a front sectional structure of a flue gas desulfurization absorption tower of the present utility model;
fig. 2 is a schematic view showing a schematic top-down structure of the flue gas desulfurization absorption tower of the present utility model.
Description of the drawings: 1. a tower body; 2. a main distribution pipe; 3. a secondary distribution pipe; 4. a vertical shower nozzle; 5. tilting the spray head; 6. a support body.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be further illustrated, but is not limited, by the following examples.
Fig. 1 is a schematic front sectional view of a flue gas desulfurization absorption tower according to the present utility model, fig. 2 is a schematic top sectional view of a flue gas desulfurization absorption tower according to the present utility model, and as shown in fig. 1 and 2, the flue gas desulfurization absorption tower provided in this embodiment: the tower body 1 comprises a tower body 1, wherein a cavity of the tower body 1 is divided into a crystallization area, an oxidation area and an absorption area from bottom to top, an air inlet is formed in the middle of the tower body 1, which corresponds to the oxidation area, a flue gas outlet is formed in the top of the tower body 1, a demister is arranged at the top of the absorption area, a spraying assembly is arranged below the demister, the spraying assembly comprises a distribution pipe network and a spray head group, the distribution pipe network uniformly extends to all positions of the section of the tower body 1, and the spray head group uniformly and movably is arranged at all positions of the distribution pipe network.
When the mist is collided with the corrugated plate and the collected liquid drops are large enough to generate gravity exceeding the resultant force of the lifting force of the gas and the surface tension of the liquid due to the inertia impact action of the gas when the gas containing the mist flows through the mist eliminator at a certain speed, the liquid drops are separated from the surface of the corrugated plate, the multi-fold structure of the corrugated plate of the mist eliminator increases the opportunity of capturing the mist, and the mist which is not removed is captured through the same action at the next turning position, so that the mist elimination efficiency is greatly improved.
In the above embodiment, the distribution pipe network includes a main distribution pipe 2 and a plurality of secondary distribution pipes 3, the side wall of the tower body 1 is provided with a through hole for communicating the inside and the outside, one end of the main distribution pipe 2 passes through the through hole and extends to the outside of the tower body 1 to be communicated with the external slurry circulation device, the other end of the main distribution pipe 2 extends to the side wall of the tower body 1, which is opposite to the through hole, the plurality of secondary distribution pipes 3 are symmetrically arranged at two sides of the main distribution pipe 2, and the secondary distribution pipes 3 respectively extend to the side wall of the inner cavity of the tower body 1.
The main distribution pipe 2 and the sub distribution pipe 3 are made of FRP.
In the above embodiment, the spray head group includes a plurality of vertical spray heads 4 and a plurality of inclined spray heads 5, the plurality of inclined spray heads 5 are all disposed at the position of the secondary distribution pipe 3 near the side wall of the tower body 1, and the plurality of vertical spray heads 4 are uniformly distributed at the rest positions of the secondary distribution pipe 3 in an array.
In the above embodiment, the spray angle of the vertical spray head 4 is 120 °, and the vertical spray head 4 is directed vertically downward, the spray angle of the inclined spray head 5 is 90 °, and the inclined spray head 5 is rotated 45 ° toward the side away from the side wall of the tower body 1.
In the above embodiment, the spray assembly further includes a plurality of support bodies 6 with different lengths, and the plurality of support bodies 6 are distributed at the lower part of the distribution pipe network in a staggered manner to support the distribution pipe network, and the ends of the plurality of support bodies 6 close to the side walls of the tower body 1 are connected with the corresponding side walls of the tower body 1.
It should be noted that, the shower nozzle adopts carborundum or 316L stainless steel to avoid quick wearing and tearing, scale deposit and jam, and the shower nozzle is low pressure nozzle, through threaded connection, with the secondary distribution pipe 3 between, with convenient quick separation dismantlement.
In the above embodiment, the end face of the secondary distribution pipe 3, which is close to the side wall of the tower body 1, is provided with a flushing nozzle, and a flushing pipe for communicating the flushing nozzle with an external flushing source is arranged in the distribution pipe network.
The main distribution pipe 2 is used for connecting the thick liquid circulating device and will spray liquid transmission to each secondary distribution pipe 3, is provided with a plurality of shower nozzles on the secondary distribution pipe 3 to with thick liquid atomizing blowout, make flue gas and atomized liquid fully contact, be in the shower nozzle spray angle at tower body 1 edge and be 90, and its inclination is 45, when inclined shower nozzle 5 sprays, the edge of the regional parallel as far as possible of spun atomizing prevents to spray on tower body 1 lateral wall between the atomized liquid.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the teachings of the present utility model, which are intended to be included within the scope of the present utility model.
Claims (5)
1. The utility model provides a flue gas desulfurization absorption tower, includes tower body (1), tower body (1) cavity is from supreme crystallization district, oxidation district and the absorption district of dividing into down, the air inlet has been seted up to tower body (1) middle part correspondence oxidation district department, flue gas outlet is seted up at tower body (1) top, the absorption district top is provided with the defroster, defroster below is provided with spray set, its characterized in that: the spray assembly comprises a distribution pipe network and a spray head group, the distribution pipe network uniformly extends to the sections of the tower body (1), the spray head group is uniformly and movably arranged at the sections of the distribution pipe network, the distribution pipe network comprises a main distribution pipe (2) and a plurality of secondary distribution pipes (3), through holes for communicating the inside and the outside are formed in the side walls of the tower body (1), one end of the main distribution pipe (2) penetrates through the through holes to extend to the outside of the tower body (1) to be communicated with an external slurry circulating device, the other end of the main distribution pipe (2) extends to the side walls of the tower body (1) opposite to the through holes, a plurality of secondary distribution pipes (3) are symmetrically arranged at the two sides of the main distribution pipe (2), and the secondary distribution pipes (3) respectively extend to be close to the side walls of the inner cavities of the tower body (1).
2. A flue gas desulfurization absorber as claimed in claim 1, wherein: the spray head group comprises a plurality of vertical spray heads (4) and a plurality of inclined spray heads (5), the inclined spray heads (5) are arranged at the positions, close to the side wall of the tower body (1), of the secondary distribution pipe (3), and the vertical spray heads (4) are uniformly distributed at the rest positions of the secondary distribution pipe (3) in an array mode.
3. A flue gas desulfurization absorber as claimed in claim 2, wherein: the spray angle of the vertical spray head (4) is 120 degrees, the vertical spray head (4) faces downwards vertically, the spray angle of the inclined spray head (5) is 90 degrees, and the inclined spray head (5) rotates 45 degrees towards one side far away from the side wall of the tower body (1).
4. A flue gas desulfurization absorber as claimed in claim 3, wherein: the spray assembly further comprises a plurality of supporting bodies (6) with different lengths, the supporting bodies (6) are distributed at the lower part of the distribution pipe network in a staggered mode, so that the distribution pipe network is supported, and the ends, close to the side walls of the tower body (1), of the supporting bodies (6) are connected with the corresponding side walls of the tower body (1).
5. A flue gas desulfurization absorber according to any one of claims 2 to 4, wherein: the secondary distribution pipe (3) is provided with a flushing nozzle close to the end face of one end of the side wall of the tower body (1), and a flushing pipe for communicating the flushing nozzle with an external flushing source is arranged in the distribution pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321320286.2U CN220071243U (en) | 2023-05-29 | 2023-05-29 | Flue gas desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321320286.2U CN220071243U (en) | 2023-05-29 | 2023-05-29 | Flue gas desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220071243U true CN220071243U (en) | 2023-11-24 |
Family
ID=88817112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321320286.2U Active CN220071243U (en) | 2023-05-29 | 2023-05-29 | Flue gas desulfurization absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220071243U (en) |
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2023
- 2023-05-29 CN CN202321320286.2U patent/CN220071243U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |