CN210356676U

CN210356676U - Gas equalizing effect device for wet desulphurization

Info

Publication number: CN210356676U
Application number: CN201921219546.0U
Authority: CN
Inventors: 梁凤; 于子龙; 李娜; 王玉旺
Original assignee: Beijing SPC Environment Protection Tech Co Ltd
Current assignee: Shenzhen Qingxin Environmental Technology Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-21
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a device is imitated to equal air lift for wet flue gas desulfurization, including the absorption tower body, the inside wall fixedly connected with absorption tower of absorption tower body wall board of drawing high, one side fixedly connected with tray that the absorption tower inside wall is close to absorption tower wall board of drawing high, the upper surface swing joint of tray has the absorption tower pipe to remove, the inside wall fixedly connected with mounting bracket of absorption tower body, mounting bracket's upper surface swing joint has the pipe to remove the grid. This a device is imitated to equal gas for wet flue gas desulfurization, through the setting of tray, can improve the absorbent utilization ratio, the flue gas of higher velocity of flow gets into the absorption tower body after, at first through lower floor's tray in the tower to carry out the homogeneity adjustment of gas, liquid item with the liquid film on the tray, increased the dwell time of flue gas in the absorption tower body, when gaseous when passing through, the gas-liquid contact can play the effect of abundant absorbed gas part contamination composition, thereby effectively reduce liquid-gas ratio, the utilization ratio of absorbent has been improved.

Description

Gas equalizing effect device for wet desulphurization

Technical Field

The utility model relates to a flue gas treatment technical field specifically is a device is imitated to equal air stripping for wet flue gas desulfurization.

Background

Most of large and medium-sized coal-fired power plants in China adopt limestone-gypsum wet flue gas desulfurization devices to absorb and remove SO2, the potential of the wet desulfurization devices is more difficult to promote with the further improvement of environmental emission standards, the energy consumption is high, the desulfurization efficiency of a wet desulfurization tower is closely related to the mass transfer of slurry droplets and flue gas, the smaller the slurry droplets are, the larger the specific surface area is, the more efficient the mass transfer with the flue gas is, the better the turbulent mixing effect of the slurry droplets and the flue gas is, the higher the desulfurization efficiency is, the existing wet desulfurization tower adopts an atomizing nozzle to atomize the slurry into slurry droplets with the particle size of more than 0.5mm, the slurry droplets fall under the action of gravity and flow against the incoming flue gas to generate mass transfer and chemical reaction, the absorption and removal of SO2 in the flue gas are realized, and due to the factors such as nozzle performance and energy consumption, the existing wet desulfurization tower must maintain a high liquid-gas ratio, a large amount of slurry is circulated repeatedly, SO that the slurry can be contacted and reacted with SO2 to achieve high desulfurization efficiency, but a large amount of electric energy can be consumed by the slurry circulating pump, the overall operation efficiency of the desulfurization tower is not high, and energy conservation and emission reduction are not facilitated.

In order to achieve "ultra-low emissions" of pollutants with the lowest possible energy consumption, the traditional, relatively extensive technical route for increasing the liquid-gas ratio cannot be relied upon purely, and a breakthrough must be sought from the key technical link that limits the effectiveness of the current desulfurization process.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the deficiency of the prior art, the utility model provides a device is imitated to equal gas for wet flue gas desulfurization has solved the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a device is imitated to equal gas for wet flue gas desulfurization, includes the absorption tower body, the inside wall fixedly connected with absorption tower of absorption tower body wall board of drawing high, one side fixedly connected with tray that the absorption tower inside wall is close to absorption tower wall board of drawing high, the upper surface swing joint of tray has the absorption tower pipe to remove, the inside wall fixedly connected with mounting bracket of absorption tower body, mounting bracket's upper surface swing joint has the pipe to remove the grid, a supporting beam is propped up to the inside wall fixedly connected with shower of absorption tower body, a supporting beam's of shower last fixed surface is connected with the shower.

Optionally, the inner side wall of the absorption tower body is fixedly connected with a pipe removing hanger, the upper surface of the pipe removing hanger is fixedly connected with a pipe removing support beam, the upper surface of the pipe removing support beam is arranged on the lower surface of the pipe removing grid, and the upper surface of the pipe removing hanger is provided with a pipe removing flushing water opening.

Optionally, the outer surface of the spray pipe is provided with four spray heads, the number of the spray heads is five, the two ends of the spray pipe are arranged on the inner side wall of the absorption tower body.

Optionally, one side of the inner side wall of the absorption tower body, which is close to the spray pipe, is fixedly connected with a fixed block through a fixture block, and the outer surface of the fixed block is fixedly connected with a spray pipe synergistic ring through a bolt.

Optionally, the inner side wall of the absorption tower body is fixedly connected with a tray supporting beam, the upper surface of the tray supporting beam is movably connected with a tray, the inside of the tray is fixedly connected with a rib plate through a welding strip, and an opening is formed in the inner bottom wall of the tray.

Optionally, the upper surface of the absorption tower body is fixedly connected with a flue gas outlet pipe, and the inner side wall of the absorption tower body is fixedly connected with a flue gas inlet pipe.

(III) advantageous effects

The utility model provides a device is imitated to equal gas lift for wet flue gas desulfurization possesses following beneficial effect:

1. this a device is imitated to equal gas for wet flue gas desulfurization, setting through the tray, can improve the absorbent utilization ratio, the flue gas of higher velocity of flow gets into the absorption tower body after, at first through lower floor's tray in the tower, and carry out the gas with the liquid film on the tray, the homogeneity adjustment of liquid item, the dwell time of flue gas in the absorption tower body has been increased, when gaseous when passing through, the gas-liquid contact, can play the effect of abundant absorbed gas part contamination composition, thereby effectively reduce liquid-gas ratio, the utilization ratio of absorbent has been improved, thereby the flow and the consumption of circulating slurry pump have been reduced, the tray can hinder the cross section of tower on the air current distribute uniformly.

2. This a device is imitated to equal gas for wet flue gas desulfurization, setting through the shower, the surface of a plurality of showers all is provided with the shower head, the spray head arrange that the inner wall of having guaranteed that a shower supporting beam and absorption tower body all avoids the direct washing away of shower head, improve absorption tower body's life, also add the radiation surface that sprays simultaneously, improve spray density, eliminate and spray the thick liquid dead angle, shower increase ring can block that the lower part carries out the rectification along the ascending flue gas of absorption tower body tower wall department under the blockking of shower increase ring, absorption tower body wall department desulfurization efficiency has been realized and has reached or be close the desulfurization efficiency of absorption tower central point and put, thereby guarantee the high-efficient desulfurization efficiency of whole absorption tower body.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the tray structure of the present invention.

In the figure: 1. an absorption tower body; 2. a high wall plate of the absorption tower; 3. a support block; 4. removing the absorption tower pipe; 5. a fixing bracket; 6. removing the grating by a pipe; 7. removing the hanging bracket from the pipe; 8. removing the support beam from the pipe; 9. a pipe-removal flush water opening; 10. a shower pipe support beam; 11. a shower pipe; 12. a shower head; 13. a fixed block; 14. a spray pipe synergistic ring; 15. a tray support beam; 16. a tray; 17. a rib plate; 18. opening a hole; 19. a flue gas outlet pipe; 20. a flue gas inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 2, the present invention provides a technical solution: a gas-equalizing effect device for wet desulphurization comprises an absorption tower body 1, an inner side wall of the absorption tower body 1 is fixedly connected with a pipe-removing hanger 7, the upper surface of the pipe-removing hanger 7 is fixedly connected with a pipe-removing support beam 8, the upper surface of the pipe-removing support beam 8 is arranged on the lower surface of a pipe-removing grid 6, the upper surface of the pipe-removing hanger 7 is provided with a pipe-removing flushing water opening 9, one side of the inner side wall of the absorption tower body 1, which is close to a spray pipe 11, is fixedly connected with a fixed block 13 through a fixture block, the outer surface of the fixed block 13 is fixedly connected with a spray pipe synergistic ring 14 through a bolt, the inner side wall of the absorption tower body 1 is fixedly connected with a tray support beam 15, the upper surface of the tray support beam 15 is movably connected with a tray 16, the inside of the tray 16 is fixedly connected with a rib, about 30 to 40 percent of sulfur dioxide in the flue gas can be removed; reducing the concentration of sulfur dioxide at the pipe orifice of the flue gas inlet pipe 20; the flue gas entering the absorption tower is further uniformly distributed in the absorption tower body 1, the phenomenon that pollutants such as sulfur dioxide in the flue gas and limestone in liquid are mistakenly connected is prolonged, the pollutants are further removed, the utilization rate of the absorbent can be improved by arranging the trays 16, after the flue gas with higher flow velocity enters the absorption tower body 1, the flue gas firstly passes through the trays 16 at the lower layer in the tower and is subjected to the homogeneous adjustment of gas and liquid with a liquid film on the trays 16, the retention time of the flue gas in the absorption tower body 1 is increased, when the gas passes through, the gas and the liquid are contacted, the effect of fully absorbing partial pollutant components in the gas can be achieved, the liquid-gas ratio is effectively reduced, the utilization rate of the absorbent is improved, the flow and the power consumption of the circulating slurry pump are reduced, the trays 16 can prevent the airflow on the cross section of the tower from being uniformly distributed, the trays 16 can improve the dissolving amount of the desulfurizer, and enhance, the arrangement of the tray 16 can make the device convenient for operation and maintenance, when the tower internals are maintained, slurry in the absorption tower body 1 is not required to be completely emptied, then a temporary maintenance platform is built in the tower, operation maintenance personnel can directly stand on the alloy tray 16 to maintain and replace the tower internals, the time for maintenance in operation is reduced, the liquid-gas ratio is reduced, the power consumption is reduced, and the efficient dust removal is more important, the upper surface of the absorption tower body 1 is fixedly connected with a flue gas outlet pipe 19, the inner side wall of the absorption tower body 1 is fixedly connected with a flue gas inlet pipe 20, the inner side wall of the absorption tower body 1 is fixedly connected with an absorption tower uplift wallboard 2, one side of the inner side wall of the absorption tower body 1, which is close to the absorption tower uplift wallboard 2, is fixedly connected with a supporting block 3, the upper surface of the supporting block 3 is movably connected with an absorption tower pipe 4, the inner side wall, the upper surface of the fixed bracket 5 is movably connected with a tubular grille 6, the inner side wall of the absorption tower body 1 is fixedly connected with a spray pipe supporting beam 10, the upper surface of the spray pipe supporting beam 10 is fixedly connected with spray pipes 11, the outer surfaces of the spray pipes 11 are provided with spray heads 12, the number of the spray heads 12 is four, the number of the spray pipes 11 is five, two ends of the five spray pipes 11 are arranged on the inner side wall of the absorption tower body 1, through the arrangement of the spray pipes 11, the surfaces of the spray pipes 11 are provided with the spray heads 12, the arrangement of the spray heads 12 ensures that the inner walls of the spray pipe supporting beam 10 and the absorption tower body 1 are prevented from being directly washed by the spray heads 12, the service life of the absorption tower body 1 is prolonged, meanwhile, the radiation synergistic surface is added with spray, the spray density is improved, the slurry dead angle is eliminated, the spray pipe rings 14 can prevent the smoke rising along the tower wall of the absorption tower body, the desulfurization efficiency of the wall of the absorption tower body 1 reaches or approaches to that of the center of the absorption tower, so that the high-efficiency desulfurization efficiency of the whole absorption tower body 1 is ensured.

As an optimal technical solution of the utility model: the number of rib plates 17 is two.

To sum up, the gas-equalizing effect device for wet desulphurization can improve the utilization rate of the absorbent through the arrangement of the trays 16 when in use, after the flue gas with higher flow velocity enters the absorption tower body 1, the flue gas firstly passes through the trays 16 at the lower layer in the tower and is subjected to homogeneous adjustment of gas and liquid items with liquid films on the trays 16, so that the retention time of the flue gas in the absorption tower body 1 is increased, when the gas passes through, the flue gas is contacted with the gas and the liquid, so that the effect of fully absorbing part of pollutant components in the gas can be achieved, the liquid-gas ratio is effectively reduced, the utilization rate of the absorbent is improved, the flow and the power consumption of the circulating slurry pump are reduced, the trays 16 can prevent the airflow on the cross section of the tower from being uniformly distributed, the spray headers 12 are arranged on the surfaces of the plurality of spray pipes 11 through the arrangement of the spray pipes 11, the arrangement of the spray headers 12 ensures that the spray pipe supporting beams 10 and the inner walls of the absorption tower, the service life of the absorption tower body 1 is prolonged, meanwhile, the spraying radiation surface is added, the spraying density is improved, the dead angle of spraying slurry is eliminated, the spraying synergistic ring 14 can block smoke ascending along the tower wall of the absorption tower body 1 from the lower part, rectification is carried out under the blocking of the spraying synergistic ring 14, the desulfurization efficiency of the wall of the absorption tower body 1 reaches or is close to that of the center of the absorption tower, and therefore the high-efficiency desulfurization efficiency of the whole absorption tower body 1 is guaranteed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a gas equalizing effect device for wet flue gas desulfurization, includes absorption tower body (1), its characterized in that: the utility model discloses an absorption tower, including absorption tower body (1), inside wall fixedly connected with absorption tower height-pulling wallboard (2) of absorption tower body (1), one side fixedly connected with tray (3) that the inside wall of absorption tower body (1) is close to absorption tower height-pulling wallboard (2), the upper surface swing joint of tray (3) has the absorption tower pipe to remove (4), the inside wall fixedly connected with fixing bracket (5) of absorption tower body (1), the upper surface swing joint of fixing bracket (5) has the pipe to remove grid (6), the inside wall fixedly connected with spray pipe supporting beam (10) of absorption tower body (1), the upper surface fixedly connected with spray pipe (11) of spray pipe supporting beam (10).

2. The gas-equalizing efficiency device for wet desulfurization according to claim 1, characterized in that: the inside wall fixedly connected with pipe of absorption tower body (1) removes gallows (7), the pipe removes the last fixed surface who removes gallows (7) and is connected with a pipe and removes a supporting beam (8), the pipe removes the upper surface setting of a supporting beam (8) and removes the lower surface of grid (6) at the pipe, the pipe removes the upper surface of gallows (7) and has seted up the pipe and has removed sparge water opening (9).

3. The gas-equalizing efficiency device for wet desulfurization according to claim 1, characterized in that: the outer surface of shower (11) is provided with shower head (12), the quantity of shower head (12) is four, the quantity of shower (11) is five, five the both ends of shower (11) all set up the inside wall at absorption tower body (1).

4. The gas-equalizing efficiency device for wet desulfurization according to claim 1, characterized in that: one side of the inner side wall of the absorption tower body (1) close to the spray pipe (11) is fixedly connected with a fixed block (13) through a clamping block, and the outer surface of the fixed block (13) is fixedly connected with a spray pipe synergistic ring (14) through a bolt.

5. The gas-equalizing efficiency device for wet desulfurization according to claim 1, characterized in that: the absorption tower is characterized in that a tray supporting beam (15) is fixedly connected to the inner side wall of the absorption tower body (1), a tray (16) is movably connected to the upper surface of the tray supporting beam (15), a rib plate (17) is fixedly connected to the inner portion of the tray (16) through a welding plate strip, and a hole (18) is formed in the inner bottom wall of the tray (16).

6. The gas-equalizing efficiency device for wet desulfurization according to claim 1, characterized in that: the upper surface fixed connection of absorption tower body (1) has flue gas outlet pipe (19), the inside wall fixed connection of absorption tower body (1) has flue gas inlet pipe (20).