CN211585975U - High-efficient flue gas desulfurization absorption tower - Google Patents
High-efficient flue gas desulfurization absorption tower Download PDFInfo
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- CN211585975U CN211585975U CN201921491996.5U CN201921491996U CN211585975U CN 211585975 U CN211585975 U CN 211585975U CN 201921491996 U CN201921491996 U CN 201921491996U CN 211585975 U CN211585975 U CN 211585975U
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- flue gas
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- absorption tower
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Abstract
The utility model relates to a high-efficiency flue gas desulfurization absorption tower, which comprises a tower body, a flue gas inlet arranged on the tower body, a flue gas outlet arranged at the top of the tower body, a cooling layer arranged at the flue gas inlet, a circulating spray device arranged in the tower body, and a demisting layer arranged inside the tower body and close to the flue gas outlet; wherein the cooling layer comprises a cooling spray head arranged at the top of the flue gas inlet; at least one spraying layer is arranged in the circulating spraying device, the spraying layer comprises a spraying main pipe, a plurality of spraying branch pipes are arranged on two sides of the spraying main pipe, and each spraying branch pipe is provided with at least one nozzle; the number of the nozzles on the spraying layer far away from the flue gas inlet is more than that of the nozzles close to the flue gas inlet; and a cleaning spray head for cleaning the demisting layer is also arranged on the demisting layer.
Description
Technical Field
The utility model relates to a flue gas desulfurization equipment field especially relates to a high-efficient flue gas desulfurization absorption tower.
Background
In order to protect the environment and reduce air pollution, most thermoelectric enterprises need to desulfurize the flue gas and then discharge the flue gas into the atmosphere. In the traditional desulfurization process, a desulfurizer and flue gas are mixed in an absorption tower, the lower part of the absorption tower is provided with a flue gas inlet, and the upper part of the absorption tower is provided with a desulfurizer inlet. The flue gas enters the absorption tower from the lower part of the absorption tower, is mixed with a desulfurizer in the absorption tower for desulfurization, and then the desulfurized clean flue gas is discharged from a clean flue gas outlet at the top of the absorption tower. The absorption tower has a large cross section, so the mixing effect of the flue gas and the desulfurizer is poor, and the desulfurization effect is poor.
In order to realize high-efficiency desulfurization, more than 4 layers of spraying layers need to be designed, but the design of the nozzles on the spraying layers still cannot efficiently finish flue gas desulfurization.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-efficient flue gas desulfurization absorption tower has realized reducing the flue gas temperature, further improves desulfurization efficiency's technological effect.
In order to solve the technical problem, the utility model provides a technical scheme does: a high-efficiency flue gas desulfurization absorption tower comprises a tower body, a flue gas inlet arranged on the tower body, a flue gas outlet arranged at the top of the tower body, a cooling layer arranged at the flue gas inlet, a circulating spray device arranged in the tower body, and a demisting layer arranged inside the tower body and close to the flue gas outlet; wherein the cooling layer comprises a cooling spray head arranged at the top of the flue gas inlet; at least one spraying layer is arranged in the circulating spraying device, the spraying layer comprises a spraying main pipe, a plurality of spraying branch pipes are arranged on two sides of the spraying main pipe, and each spraying branch pipe is provided with at least one nozzle; the number of the nozzles on the spraying layer far away from the flue gas inlet is more than that of the nozzles close to the flue gas inlet; and a cleaning spray head for cleaning the demisting layer is also arranged on the demisting layer.
Further, the cooling spray head is communicated with the process water pipeline through a pipeline joint, a first butterfly valve and a second butterfly valve are sequentially arranged on the process water pipeline along the flow direction of the process water, and the second butterfly valve is connected with the electric actuator.
Further, the defogging layer is including the whirl column plate that from top to bottom sets gradually, first spiral-flow type defroster and second spiral-flow type defroster, tower wall guiding gutter is all installed to first, second spiral-flow type defroster top.
When the flue gas tells to pass through the cyclone column plate, the absorption liquid on the blades can be blown into very small fog drops, the sulfur dioxide, the absorption liquid and the fog drops collide with each other under the mechanism action of collision, interception, Brownian motion and the like, the particle size is continuously increased, the rotating motion is intensified under the guiding action of the cyclone column plate, strong centrifugal force is generated, reactants are easily separated from the flue gas and thrown to the wall of the tower, and the reactants flow to the bottom of the tower under the action of gravity, so that solid-gas separation is realized. And then continuously passing through two layers of cyclone demisters to remove fog drops containing absorption liquid. And a tower wall diversion trench is arranged above each layer of demister to reduce water loss.
Further, the nozzle is a spiral nozzle.
Further, the diameter of the main spraying pipe is gradually reduced along the horizontal direction.
Further, spray branch pipe one end and install on spraying the main pipe, fixed connection is on desulfurization spray column's inside wall after the other end seals, sprays the branch pipe and follows to spray the main pipe bilateral symmetry slope setting. And the spraying main pipe is connected with the spraying branch pipe through the flange short pipe, so that the installation and the maintenance are convenient.
Furthermore, the spraying branch pipes and the spraying main pipe form an included angle of 50-80 degrees.
Furthermore, at least three spraying layers are arranged in the desulfurization spraying tower device, wherein the two spraying layers positioned at the bottommost are provided with an upper bidirectional nozzle and a lower bidirectional nozzle, and each spraying layer at the upper part of the desulfurization spraying tower device is provided with a downward unidirectional nozzle.
Furthermore, the demister is made of reinforced polypropylene materials and can bear water flow spurting at the speed of telling water flow.
Further, still be equipped with temperature sensor on the cooling shower nozzle to and the controller of being connected with temperature sensor, the controller control cooling shower nozzle open the size.
The utility model has the advantages that: the utility model provides a high-efficiency flue gas desulfurization absorption tower, the temperature reduction layer can reduce the temperature of flue gas, so that the temperature of the discharged flue gas reaches normal temperature, and the generation of urban heat island effect is reduced; and spray nozzle inhomogeneous the arranging among the circulation spray set sprays the layer according to the distribution characteristic of flue gas, and the original flue gas entry is not more than for spraying the nozzle quantity that mouth quantity is close to the flue gas entry position, can be when the desulfurizing tower operation, guarantees that each nozzle of every layer of spray line can be to 360 full aspects atomizing simultaneously in the desulfurizing spray tower, can show improvement and spray the coverage to reach and improve desulfurization efficiency, and avoid the waste of absorption liquid. And a cleaning spray head is arranged above the demisting layer and used for separating fog drops carried by the clean flue gas.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic view of the overall structure of a high-efficiency flue gas desulfurization absorption tower of the present invention;
fig. 2 is a schematic diagram of the spraying layer structure of the high-efficiency flue gas desulfurization absorption tower of the present invention.
In the figure: the tower comprises a tower body 1, a flue gas inlet 2, a flue gas outlet 3, a circulating spray device 4, a demisting layer 5, a cooling spray head 6, a spray main pipe 7, a spray branch pipe 8, a nozzle 9, a process water pipeline 10, a first butterfly valve 11 and a second butterfly valve 12.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1:
as shown in fig. 1-2, the utility model provides a high-efficiency flue gas desulfurization absorption tower, which comprises a tower body 1, a flue gas inlet 2 arranged on the tower body 1, a flue gas outlet 3 arranged at the top of the tower body 1, a cooling layer arranged at the flue gas inlet 2, a circulating spray device 4 arranged in the tower body 1, and a demisting layer 5 arranged inside the tower body 1 and close to the flue gas outlet 3; wherein the cooling layer comprises a cooling spray head 6 arranged at the top of the flue gas inlet 2; at least one spraying layer is arranged in the circulating spraying device 4, the spraying layer comprises a spraying main pipe 7, a plurality of spraying branch pipes 8 are arranged on two sides of the spraying main pipe 7, and at least one nozzle 9 is arranged on each spraying branch pipe 8; the number of the nozzles 9 far away from the flue gas inlet 2 on the spraying layer is more than that of the nozzles 9 close to the flue gas inlet 2; and a cleaning spray head for cleaning the demisting layer 5 is also arranged on the demisting layer 5.
Specifically, as shown in fig. 1, the cooling spray head 6 is communicated with a process water pipeline 10 through a pipeline joint, a first butterfly valve 11 and a second butterfly valve 12 are sequentially arranged on the process water pipeline 10 along the flow direction of the process water, and the second butterfly valve 12 is connected with an electric actuator.
The demisting layer 5 comprises cyclone tower plates, a first cyclone demister and a second cyclone demister, wherein the cyclone tower plates are sequentially arranged from top to bottom, and tower wall guide grooves are arranged above the first cyclone demister and the second cyclone demister.
When the flue gas tells to pass through the cyclone column plate, the absorption liquid on the blades can be blown into very small fog drops, the sulfur dioxide, the absorption liquid and the fog drops collide with each other under the mechanism action of collision, interception, Brownian motion and the like, the particle size is continuously increased, the rotating motion is intensified under the guiding action of the cyclone column plate, strong centrifugal force is generated, reactants are easily separated from the flue gas and thrown to the wall of the tower, and the reactants flow to the bottom of the tower under the action of gravity, so that solid-gas separation is realized. And then continuously passing through two layers of cyclone demisters to remove fog drops containing absorption liquid. And a tower wall diversion trench is arranged above each layer of demister to reduce water loss.
The nozzle 9 is a spiral nozzle.
As shown in fig. 2, the diameter of the main spray pipe 7 decreases gradually along the horizontal direction.
One end of the spray branch pipe 8 is arranged on the spray main pipe 7, the other end of the spray branch pipe is fixedly connected to the inner side wall of the desulfurization spray tower after being sealed, and the spray branch pipe 8 is symmetrically arranged in an inclined mode along two sides of the spray main pipe 7. And the main spray pipe 7 is connected with the branch spray pipe 8 through a short flange pipe, so that the installation and the maintenance are convenient.
The spraying branch pipe 8 and the spraying main pipe 7 form an included angle of 50-80 degrees.
At least three spraying layers are arranged in the desulfurization spraying tower device, wherein the two spraying layers positioned at the bottommost are provided with an upper bidirectional nozzle 9 and a lower bidirectional nozzle 9, and each spraying layer at the upper part of the desulfurization spraying tower device is provided with a downward unidirectional nozzle 9.
The demister is made of reinforced polypropylene materials and can bear the water flow sprint.
Still be equipped with temperature sensor on the cooling shower nozzle 6 to and the controller of being connected with temperature sensor, the controller control cooling shower nozzle open the size.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a high-efficient flue gas desulfurization absorption tower which characterized in that: the tower comprises a tower body, a flue gas inlet arranged on the tower body, a flue gas outlet arranged at the top of the tower body, a cooling layer arranged at the flue gas inlet, a circulating spray device arranged in the tower body, and a demisting layer arranged inside the tower body and close to the flue gas outlet; wherein
The cooling layer comprises a cooling spray head arranged at the top of the flue gas inlet;
at least one spraying layer is arranged in the circulating spraying device, the spraying layer comprises a spraying main pipe, a plurality of spraying branch pipes are arranged on two sides of the spraying main pipe, and each spraying branch pipe is provided with at least one nozzle; the number of the nozzles on the spraying layer far away from the flue gas inlet is more than that of the nozzles close to the flue gas inlet; and
and a cleaning spray head for cleaning the demisting layer is also arranged on the demisting layer.
2. The high-efficiency flue gas desulfurization absorption tower of claim 1, characterized in that: the cooling spray head is communicated with the process water pipeline through a pipeline joint, a first butterfly valve and a second butterfly valve are sequentially arranged on the process water pipeline along the flow direction of the process water, and the second butterfly valve is connected with the electric actuator.
3. The high-efficiency flue gas desulfurization absorption tower of claim 2, characterized in that: the defogging layer is including the whirl column plate that from top to bottom sets gradually, first spiral-flow type defroster and second spiral-flow type defroster, tower wall guiding gutter is all installed to first, second spiral-flow type defroster top.
4. The high-efficiency flue gas desulfurization absorption tower of claim 3, characterized in that: the nozzle is a spiral nozzle.
5. The high-efficiency flue gas desulfurization absorption tower of claim 4, characterized in that: the diameter of the main spraying pipe is gradually reduced along the horizontal direction.
6. The high efficiency flue gas desulfurization absorption tower of claim 5, wherein: one end of the spraying branch pipe is installed on the spraying main pipe, the other end of the spraying branch pipe is fixedly connected to the inner side wall of the desulfurization spraying tower after being sealed, and the spraying branch pipe is symmetrically arranged in an inclined mode along the two sides of the spraying main pipe.
7. The high efficiency flue gas desulfurization absorption tower of claim 6, characterized in that: the spraying branch pipe and the spraying main pipe form an included angle of 50-80 degrees.
8. The high efficiency flue gas desulfurization absorption tower of claim 7, wherein: at least three spraying layers are arranged in the desulfurization spraying tower device, wherein the two spraying layers positioned at the bottommost are provided with an upper bidirectional nozzle and a lower bidirectional nozzle, and each spraying layer at the upper part of the desulfurization spraying tower device is provided with a downward unidirectional nozzle.
9. The high efficiency flue gas desulfurization absorption tower of claim 8, wherein: the demister is made of reinforced polypropylene materials.
10. The high efficiency flue gas desulfurization absorption tower of claim 9, wherein: still be equipped with temperature sensor on the cooling shower nozzle to and the controller of being connected with temperature sensor, the controller control cooling shower nozzle open the size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491996.5U CN211585975U (en) | 2019-09-09 | 2019-09-09 | High-efficient flue gas desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491996.5U CN211585975U (en) | 2019-09-09 | 2019-09-09 | High-efficient flue gas desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211585975U true CN211585975U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921491996.5U Expired - Fee Related CN211585975U (en) | 2019-09-09 | 2019-09-09 | High-efficient flue gas desulfurization absorption tower |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169570A (en) * | 2020-10-20 | 2021-01-05 | 常德市俊德科技发展有限公司 | Chemical industry is integration sulphur removal equipment for waste gas |
-
2019
- 2019-09-09 CN CN201921491996.5U patent/CN211585975U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169570A (en) * | 2020-10-20 | 2021-01-05 | 常德市俊德科技发展有限公司 | Chemical industry is integration sulphur removal equipment for waste gas |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 Termination date: 20210909 |
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| CF01 | Termination of patent right due to non-payment of annual fee |