CN215138595U - High-efficient flue gas desulfurization device - Google Patents
High-efficient flue gas desulfurization device Download PDFInfo
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- CN215138595U CN215138595U CN202120015630.1U CN202120015630U CN215138595U CN 215138595 U CN215138595 U CN 215138595U CN 202120015630 U CN202120015630 U CN 202120015630U CN 215138595 U CN215138595 U CN 215138595U
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Abstract
The utility model discloses a high-efficiency flue gas desulfurization device, which comprises a desulfurization tower body, wherein a plurality of spraying layers are distributed in the tower body from top to bottom along the radial direction of the tower body, the upper side of each spraying layer is provided with a demisting filtering layer along the radial direction of the tower body, and the lower side of each spraying layer is provided with a packing layer along the radial direction of the tower body; the demisting filter layer is arranged into an upper layer and a lower layer; the spraying layer comprises a first pipeline, a second pipeline, a third pipeline and a fourth pipeline; the lower end of the fourth pipeline is connected with a spraying assembly. The utility model discloses a multistage layer that sprays limestone slurry to the flue gas, cigaretteGas and spray slurry are mixed in a counter-current flow, SO2Chemically reacting with limestone slurry and oxidizing with oxidizing air to produce dihydrate gypsum, SO2Absorbed, wet flue gas passes through the secondary demisting filter layer again, fog drops and particulate matters are effectively removed, and SO2And the particulate matter is reduced, and the high-efficiency desulfurization effect is ensured.
Description
Technical Field
The utility model relates to a desulphurization unit technical field especially relates to a high-efficient flue gas desulphurization device.
Background
Coal-fired power plants burn a large amount of coal in operation, the harmful elements in the coal are released and form pollutants, and the pollutants are discharged into the atmosphere along with flue gas. Pollutants in the flue gas include nitrogen oxides, dust, sulfur dioxide, carbon dioxide, heavy metal elements and the like. These contaminants are harmful to the production process, the ecological environment, and human health. Environmental regulations require the control and removal of major pollutants such as nitrogen oxides, dust, sulfur dioxide, which are released into the atmosphere.
The spray liquid of the flue gas desulfurization spray device is sprayed onto the filler from the top of the tower through a liquid distributor and flows down along the surface of the filler. Gas is fed from the bottom of the tower, and after being distributed by the gas distribution device, the gas and the liquid continuously pass through the gaps of the packing layer in a countercurrent manner, and the gas phase and the liquid phase are closely contacted on the surface of the packing layer for mass transfer. However, in the existing flue gas desulfurization device, the liquid spraying distribution is not uniform enough, so that gas-liquid two phases cannot be fully contacted in a packing layer, thereby reducing the mass transfer efficiency and influencing the desulfurization effect. Simultaneously, current defroster effect is general, the condition that the discharge port emits white smoke will appear after working a period of time, this is because the silk screen in the defroster has absorbed the droplet of capacity, the particulate matter, caused to have dripped to the droplet, the adsorption efficiency of particulate matter weakens, can't carry out long-time and efficient absorption to the steam in the gas, and simultaneously, the gap in the middle of the silk screen is too big, and it is regular to arrange moreover, there is the gap in the middle of having caused the silk screen, defogging ability is not strong, influence the droplet, the effect is got rid of to the particulate matter.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned technical problem, provide a high-efficient flue gas desulfurization device, improve defogging ability and desulfurization effect.
In order to achieve the above object, the present invention provides the following technical solutions:
a high-efficiency flue gas desulfurization device comprises a desulfurization tower body, wherein a flue gas inlet is formed at one side of the bottom of the tower body, and a flue gas outlet is formed at one side of the top of the tower body; the device is positioned between a flue gas inlet and a flue gas outlet, a plurality of spraying layers are distributed in the tower body from top to bottom along the radial direction of the tower body, the upper sides of the spraying layers are provided with demisting filtering layers along the radial direction of the tower body, and the lower sides of the spraying layers are provided with packing layers along the radial direction of the tower body; the demisting filter layer is arranged along the radial direction of the tower body and is arranged into an upper layer and a lower layer; the upper demisting filter layer is formed by a plurality of guide plates arranged along the axial direction of the tower body to enclose a plurality of concentric circles, the longitudinal section of each guide plate is wavy, and the plurality of concentric circles of guide plates are mutually connected through a cross-shaped connecting plate; the lower demisting filtering layer is formed by a plurality of cyclone plates in an inclined angle and arranged along the circumference array; the spraying layer comprises first pipelines distributed along the radial direction of the tower body, second pipelines transversely and vertically communicated with the first pipelines, third pipelines transversely and vertically communicated with the second pipelines and fourth pipelines longitudinally and vertically communicated with the third pipelines; the second pipelines are distributed on two sides of the first pipeline, and each side of the second pipelines is distributed with a plurality of second pipelines; the third pipelines are distributed on two sides of the second pipeline, and each side of the third pipelines is distributed with a plurality of third pipelines; the upper end of the fourth pipeline is communicated with the end part of the third pipeline, and the lower end of the fourth pipeline is connected with the spraying assembly.
Furthermore, the whirl plate of lower floor's defogging filter layer is divided into three circles by inside and outside, and the number that is located inboard first circle whirl plate is less than the number that is located the second circle whirl plate in the middle of being less than the number that is located the third circle whirl plate in the outside.
Furthermore, the inclination direction of the first ring of rotational flow plates is opposite to that of the second ring of rotational flow plates and is the same as that of the third ring of rotational flow plates.
Furthermore, the inclination angle of the first ring of rotational flow plates is larger than that of the second ring of rotational flow plates and that of the third ring of rotational flow plates.
Further, spray assembly includes connector and shower nozzle, the shower nozzle is spherical structure, is provided with many spray tubes of directional shower nozzle centre of sphere in 1/3 ~ 1/2 departments of shower nozzle height, shower nozzle and connector integrated into one piece or through threaded connection, connector and fourth pipeline are through screw thread or clamp connection.
Furthermore, one end of the spray pipe is 6-10cm higher than the outer surface of the spray head, and the other end of the spray pipe is level with the inner surface of the spray head.
Furthermore, one end of the first pipeline extends to the outside of the outer wall of the desulfurization tower to form an opening, the other end of the first pipeline is fixed on the inner wall of the desulfurization tower and is sealed, and the openings of the first pipelines are spirally distributed along the outer wall of the tower body.
Furthermore, two adjacent third pipelines positioned on the same side of the first pipeline are distributed in a staggered manner, and the second pipelines positioned on two sides of the first pipeline are distributed symmetrically.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a high-efficient flue gas desulfurization device sprays the layer and adopts the horizontal crisscross stringing mode of indulging, and the multistage layer spiral that sprays distributes, sprays more evenly, utilizes the spray tube of spherical shower nozzle and many directional centre of sphere simultaneously, and the one end of spray tube exceeds the shower nozzle surface moreover, can make the spray regime bigger, and the other end and the shower nozzle internal surface of spray tube are together, have reduced water from the interior spun resistance of shower nozzle, and injection pressure is bigger, the range is farther, and it is better to spray the effect. The defogging filter layer is established to be two-layer different from upper and lower structure, and the wave guide plate that has vertical setting on the upper strata encloses into a plurality of concentric circles, and the lower floor is inclination by a plurality of whirl boards and arranges along circumference array, when guaranteeing that the air current is unobstructed, increases the effective area of contact of guide plate, whirl board and air current, the SO of being convenient for2Fog drops and particles are adsorbed, and the filtering and demisting effects are improved. The flue gas enters a desulfurizing tower, limestone slurry is sprayed to the flue gas by a multi-stage spraying layer, the flue gas and the spraying slurry flow in the reverse direction and are mixed, and SO is added2Chemically reacting with limestone slurry and oxidizing with oxidizing air to produce dihydrate gypsum, SO2Absorbed, wet flue gas passes through the secondary demisting filter layer again, fog drops and particulate matters are effectively removed, and SO2And the particulate matter is reduced, and the high-efficiency desulfurization effect is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
FIG. 1 is a schematic structural view of a high-efficiency flue gas desulfurization device provided by an embodiment of the present invention;
fig. 2 is a top view of the upper defogging filter layer provided by the embodiment of the present invention.
Fig. 3 is a top view of the lower defogging filter layer provided by the embodiment of the present invention.
Fig. 4 is a top view of the spraying layer provided in the embodiment of the present invention.
Fig. 5 is a side view of a spray layer provided by an embodiment of the present invention.
Fig. 6 is a cross-sectional view of a spray assembly provided by an embodiment of the present invention.
Description of reference numerals:
1. a tower body; 2. a spray layer; 3. an upper demisting filter layer; 4. a baffle; 5. a cross-shaped connecting plate; 6. a lower demisting filter layer; 7. a first ring of swirl plates; 8. a second ring of swirl plates; 9. a third ring of swirl plates; 10. a flue gas inlet; 11. a flue gas outlet; 12. a filler layer; 13. a first pipeline; 14. a second pipeline; 15. a third pipeline; 16. a fourth pipeline; 17. a connector; 18. a spray head; 19. a nozzle; 20. and (4) opening.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the high-efficiency flue gas desulfurization device provided by the present invention comprises a desulfurization tower body 1, wherein a flue gas inlet 10 is formed at one side of the bottom of the tower body 1, and a flue gas outlet 11 is formed at one side of the top of the tower body 1; be located between flue gas entry 10 and exhanst gas outlet 11, it has a plurality of layers 2 that spray to distribute along the tower body radial from top to bottom in the tower body 1, the downside that sprays layer 2 sets up packing layer 12 along the tower body is radial. The defogging filter layer is arranged along the radial direction of the tower body, and the defogging filter layer is arranged into an upper layer and a lower layer.
As shown in fig. 2, the upper demisting filter layer 3 is formed by surrounding a plurality of guide plates 4 arranged along the axial direction of the tower body 1 into a plurality of concentric circles, the longitudinal section of each guide plate 4 is wavy, and the plurality of concentric circles of guide plates are connected with each other through a cross-shaped connecting plate 5; on the upper partThe demisting filtering layer 3 is composed of a plurality of vertically arranged wave-shaped guide plates, the guide plates adopt vertically arranged waves, the contact area of the guide plates and the airflow is increased while the airflow is ensured to be smooth, and SO is convenient2The fog drops and the particles are adsorbed, so that the effects of filtering and demisting are achieved. The demisting filtering layer is arranged into an upper layer and a lower layer, so that the filtering and demisting effects are further improved.
As shown in fig. 3, the lower defogging and filtering layer 6 is formed by a plurality of cyclone plates in an inclined angle and arranged along a circumferential array. In order to improve the rigidity of being connected between the 6 whirl boards of lower floor's defogging filter layer, the whirl board of lower floor's defogging filter layer 6 is divided into three circles by interior outer, wherein, in order to improve space utilization, the area of contact of increase and air current, the area of contact of increase whirl board and air current, the number that is located inboard first circle whirl board 7 is less than the number that is located middle second circle whirl board 8 and is less than the number that is located the outside third circle whirl board 9, specifically, the number of first circle whirl board 7 is 20, the number of second circle whirl board 8 is 24, the number of third circle whirl board 9 is 30. In order to ensure that the rotational flow plates are fully contacted with the air flow, the inclined direction of the first ring of rotational flow plates 7 is opposite to that of the second ring of rotational flow plates 8 and is the same as that of the third ring of rotational flow plates 9. In order to ensure the smoothness of the airflow, the inclination angle of the first ring of rotational flow plates 7 is larger than that of the second ring of rotational flow plates 8 and that of the third ring of rotational flow plates 9.
As shown in fig. 4 and 5, the spray layer comprises first pipelines 13 distributed along the radial direction of the tower body, second pipelines 14 transversely and vertically communicated with the first pipelines 13, third pipelines 15 transversely and vertically communicated with the second pipelines 14, and fourth pipelines 16 longitudinally and vertically communicated with the third pipelines 15; the second pipelines 14 are distributed on two sides of the first pipeline 13, and each side of the second pipelines is distributed with a plurality of second pipelines; the third pipelines 13 are distributed on two sides of the second pipeline 14, and each side is distributed with a plurality of pipelines; the upper end of the fourth pipeline 16 is communicated with the end part of the third pipeline 15, and the lower end of the fourth pipeline 16 is connected with the spraying assembly.
Specifically, as shown in fig. 5 and 6, the spray assembly includes connector 17 and shower nozzle 18, shower nozzle 18 is spherical structure, is provided with many spray tubes 19 of directional shower nozzle centre of sphere in 1/3 ~ 1/2 department of 18 height of shower nozzle, shower nozzle 18 and connector 17 integrated into one piece or through threaded connection, it is more convenient to make and install, connector 17 and fourth pipeline 16 pass through screw thread or clamp connection, and convenient operation is convenient for dismouting, maintenance and change. In order to make the shooting range farther and the spraying pressure larger, one end of the spray pipe 19 is 6-10cm higher than the outer surface of the spray head 18, and the other end of the spray pipe 19 is level with the inner surface of the spray head.
One end of the first pipeline 13 extends to the outer wall of the desulfurization tower and forms an opening 20, namely, a connecting port of the liquid inlet pipe, the other end of the first pipeline is fixed on the inner wall of the desulfurization tower and is sealed, and in order to enable the spraying assembly on each spraying layer to be more uniformly distributed, the opening 20 of the first pipeline 13 is spirally distributed along the outer wall of the tower body. Two adjacent third pipelines 15 positioned on the same side of the first pipeline 13 are distributed in a staggered manner, and the second pipelines 14 positioned on two sides of the first pipeline 13 are distributed symmetrically.
The layer that sprays adopts violently indulges crisscross stringing mode, and the multistage layer spiral that sprays distributes, sprays more evenly, utilizes the spray tube of spherical shower nozzle and many directional centre of sphere simultaneously, and the one end of spray tube exceeds the shower nozzle surface moreover, can make the spray regime bigger, and the other end of spray tube is together with the shower nozzle internal surface, has reduced water from the interior spun resistance of shower nozzle, and spray pressure is bigger, the range is farther, and the spray effect is better.
The flue gas enters a desulfurizing tower, limestone slurry is sprayed to the flue gas by a multi-stage spraying layer, the flue gas and the spraying slurry flow in the reverse direction and are mixed, and SO is added2Chemically reacting with limestone slurry and oxidizing with oxidizing air to produce dihydrate gypsum, SO2Absorbed, wet flue gas passes through the secondary demisting filter layer again, fog drops and particulate matters are removed, and SO is removed2And the particulate matter is reduced, and the high-efficiency desulfurization effect is achieved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. A high-efficiency flue gas desulfurization device is characterized by comprising a desulfurization tower body, wherein a flue gas inlet is formed at one side of the bottom of the tower body, and a flue gas outlet is formed at one side of the top of the tower body; the device is positioned between a flue gas inlet and a flue gas outlet, a plurality of spraying layers are distributed in the tower body from top to bottom along the radial direction of the tower body, the upper sides of the spraying layers are provided with demisting filtering layers along the radial direction of the tower body, and the lower sides of the spraying layers are provided with packing layers along the radial direction of the tower body; the demisting filter layer is arranged along the radial direction of the tower body and is arranged into an upper layer and a lower layer; the upper demisting filter layer is formed by a plurality of guide plates arranged along the axial direction of the tower body to enclose a plurality of concentric circles, the longitudinal section of each guide plate is wavy, and the plurality of concentric circles of guide plates are mutually connected through a cross-shaped connecting plate; the lower demisting filtering layer is formed by a plurality of cyclone plates in an inclined angle and arranged along the circumference array; the spraying layer comprises first pipelines distributed along the radial direction of the tower body, second pipelines transversely and vertically communicated with the first pipelines, third pipelines transversely and vertically communicated with the second pipelines and fourth pipelines longitudinally and vertically communicated with the third pipelines; the second pipelines are distributed on two sides of the first pipeline, and each side of the second pipelines is distributed with a plurality of second pipelines; the third pipelines are distributed on two sides of the second pipeline, and each side of the third pipelines is distributed with a plurality of third pipelines; the upper end of the fourth pipeline is communicated with the end part of the third pipeline, and the lower end of the fourth pipeline is connected with the spraying assembly.
2. The efficient flue gas desulfurization device according to claim 1, wherein the swirl plates of the lower defogging and filtering layer are divided into three rings from inside to outside, and the number of the first ring of swirl plates positioned on the inner side is smaller than that of the second ring of swirl plates positioned on the middle side and is smaller than that of the third ring of swirl plates positioned on the outer side.
3. The efficient flue gas desulfurization device of claim 2, wherein the first ring of rotational flow plates has an inclination direction opposite to that of the second ring of rotational flow plates and the same as that of the third ring of rotational flow plates.
4. The efficient flue gas desulfurization device of claim 2, wherein the inclination angle of the first ring of the swirl plates is larger than that of the second ring of the swirl plates and is larger than that of the third ring of the swirl plates.
5. The high-efficiency flue gas desulfurization device of claim 1, wherein the spray assembly comprises a connector and a spray head, the spray head is of a spherical structure, a plurality of spray pipes pointing to the spherical center of the spray head are arranged at 1/3-1/2 of the height of the spray head, the spray head and the connector are integrally formed or are connected through threads, and the connector and the fourth pipeline are connected through threads or a clamp.
6. The high efficiency flue gas desulfurization device according to claim 5, wherein one end of the lance is 6-10cm higher than the outer surface of the nozzle, and the other end of the lance is flush with the inner surface of the nozzle.
7. The efficient flue gas desulfurization device according to claim 1, wherein one end of the first pipeline extends to the outside of the outer wall of the desulfurization tower and forms an opening, and the other end of the first pipeline is fixed to the inner wall of the desulfurization tower and is closed, and the plurality of openings of the first pipeline are spirally distributed along the outer wall of the tower body.
8. The efficient flue gas desulfurization device of claim 1, wherein two adjacent third pipelines located on the same side of the first pipeline are distributed in a staggered manner, and the second pipelines located on both sides of the first pipeline are distributed symmetrically.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120015630.1U CN215138595U (en) | 2021-01-05 | 2021-01-05 | High-efficient flue gas desulfurization device |
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| CN202120015630.1U CN215138595U (en) | 2021-01-05 | 2021-01-05 | High-efficient flue gas desulfurization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115155278A (en) * | 2022-06-27 | 2022-10-11 | 江苏天楹环保能源成套设备有限公司 | Dry-wet type buffer double-tower efficient deacidification system |
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2021
- 2021-01-05 CN CN202120015630.1U patent/CN215138595U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115155278A (en) * | 2022-06-27 | 2022-10-11 | 江苏天楹环保能源成套设备有限公司 | Dry-wet type buffer double-tower efficient deacidification system |
| CN115155278B (en) * | 2022-06-27 | 2024-05-03 | 江苏天楹环保能源成套设备有限公司 | Dry-wet type buffering double-tower efficient deacidification system |
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Effective date of registration: 20220124 Address after: 130000 room 609-611, phase II, commercial complex, Jilin finance building, Jingyue Development Zone, Changchun City, Jilin Province Patentee after: CHANGCHUN TIANQIN ENVIRONMENTAL ENGINEERING Co.,Ltd. Address before: 130000 Jilin province Changchun wide flat road No. 395 Patentee before: CHANGCHUN INSTITUTE OF TECHNOLOGY |