CN113244741A - Liquid collection redistributor for waste gas treatment spray tower - Google Patents
Liquid collection redistributor for waste gas treatment spray tower Download PDFInfo
- Publication number
- CN113244741A CN113244741A CN202110457314.4A CN202110457314A CN113244741A CN 113244741 A CN113244741 A CN 113244741A CN 202110457314 A CN202110457314 A CN 202110457314A CN 113244741 A CN113244741 A CN 113244741A
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- liquid collecting
- tank
- liquid
- waste gas
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to the technical field of waste gas treatment, and discloses a redistributor for collecting liquid for a waste gas treatment spray tower. The invention adopts the secondary tank with specific height value and regular change to ensure that the spray liquid flowing downwards to the primary packing layer is uniformly distributed and improve the waste gas purification effect, adopts the liquid collecting tank with the height and length values opposite to those of the secondary tank to ensure that the spray liquid is collected and simultaneously uniformly distributed and can also fall and be transported at the same time, and adopts the uniform distribution of the first exhaust port and the second exhaust port to avoid the problem that the gas flow direction is deviated because the gas is guided to the tower wall in the traditional inclined type shielding plate distributor.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a redistributor for collecting liquid for a waste gas treatment spray tower.
Background
The waste gas treatment spray tower is a purification equipment which utilizes gas-liquid two-phase contact to produce neutralization or absorption reaction so as to purify polluted waste gas in the tower.
Wherein, because the spray liquid flows down along the packing layer, there is a wall flow phenomenon, in order to guarantee the waste gas treatment effect, the existing liquid collector and liquid redistributor are adopted to redistribute the liquid collection, thereby effectively improving the adverse effect brought by the wall flow effect, the existing liquid collector and liquid redistributor generally adopt a curtain board type liquid collector and a second-stage groove type liquid distributor, wherein, for the second-stage groove type liquid distributor, when the diameter of the cavity of the spray tower is larger, the groove diameter length of each second-stage groove of the second-stage groove type liquid distributor has a more obvious difference in length, because the lengths of the second-stage grooves are different, the cross-sectional areas are different, when the liquid collector recovers the spray liquid and falls into the second-stage groove, there is a flow rate deviation, and then the time points of the spray liquid reaching the lower packing layer are different, the effect of the packing layer is different, waste gas purification degree gap is great, and purifying effect deviation to sunshade formula liquid collector, because of its album liquid board list is arranged, then has waste gas when the flow process album liquid board, is the album liquid board of slope form, can be with gaseous guide tower wall, and then leads to the gas flow to the dispersion uneven, and the skew problem of direction.
Disclosure of Invention
Aiming at the defects of the existing waste gas treatment spray tower in the prior art in the using process, the invention provides a redistributor for collecting liquid for the waste gas treatment spray tower, which has the advantages of preventing waste gas from being guided to the tower wall, ensuring that the time of the spray liquid in a secondary tank is consistent when the spray liquid falls to a packing layer, avoiding the influence of uneven distribution of the spray liquid on the waste gas treatment effect, and solving the technical problems in the prior art.
The invention provides the following technical scheme: a liquid collecting redistributor for a waste gas treatment spray tower comprises a spray tower wall, a first-level packing layer is fixedly arranged at the bottom of an inner cavity of the spray tower wall, a first groove bottom plate is fixedly arranged above the top end of the primary packing layer, a secondary groove is fixedly arranged on the surface of the top end of the groove bottom plate, a first exhaust port positioned at one side of the secondary tank is arranged on the surface of the first tank bottom plate, a liquid collecting tank is fixedly arranged above the top end of the secondary tank, a second tank top plate is fixedly arranged at the top end of the liquid collecting tank, a second air outlet positioned at one side of the liquid collecting tank is arranged on the surface of the second tank top plate, a liquid collecting plate is fixedly arranged above the top end of the second tank top plate, a ring wall plate is fixedly arranged at the top end of the liquid collecting plate, a second-stage packing layer is fixedly mounted above the top end of the annular wall plate, and a spraying port is fixedly mounted above the top end of the second-stage packing layer.
Preferably, the height values of the secondary grooves sequentially increase from the middle to the outer side, and the length values of the secondary grooves sequentially decrease from the middle to the outer side.
Preferably, the first exhaust port is rectangular in shape, the opening length value of the first exhaust port is consistent with the length value of the outermost channel of the secondary tank, and the first exhaust port is the same as the second exhaust port in size and shape.
Preferably, the height of the sump decreases from the middle to the outside in sequence, and the length of the sump increases from the middle to the outside in sequence.
Preferably, the liquid collecting plates are uniformly distributed above the top end of the liquid collecting tank at intervals, and the length value of the trough plate at the bottom end of the liquid collecting plate is equal to the length value of the notch of the corresponding liquid collecting tank.
The invention has the following beneficial effects:
1. according to the invention, the secondary grooves with specific height values changing regularly are adopted, so that the spray liquid continuously falls, and the time consumed by liquid flowing is increased and decreased in an opposite trend according to different flow rates of the spray liquid in the grooves when the spray liquid passes through the secondary grooves with different lengths, so that the required time is kept consistent when the spray liquid falls to the primary packing layer, the spray liquid flowing downwards to the primary packing layer is distributed uniformly, and the waste gas purification effect is improved.
2. According to the invention, the liquid collecting grooves with the height and length values opposite to those of the secondary grooves are adopted, the liquid collecting plates above the liquid collecting grooves are transported downwards by the liquid collecting grooves, and the collected spraying liquid is transported downwards by utilizing different cross-sectional areas of the notches and different channel height values, namely, the flow speed and the flow time are different, and the flow speed and the flow time are opposite to each other, so that the spraying liquid is collected, uniform liquid separation is realized, the falling transportation at the same time can be realized, and the spraying liquid distribution work of subsequent distributor equipment is facilitated.
3. The exhaust gas distributor adopts the uniform distribution of the first exhaust port and the second exhaust port, so that the exhaust gas is concentrated in the middle of the spray tower when being transported upwards, each part of the exhaust gas is uniformly separated, and the gas is prevented from being scattered and separated.
Drawings
FIG. 1 is a schematic cross-sectional front view of the structure of the present invention;
FIG. 2 is a schematic side view of the structure of the present invention;
FIG. 3 is a schematic top view of a first exhaust port of the present invention;
FIG. 4 is a schematic top view of a second exhaust port according to the present invention;
FIG. 5 is a perspective view of the collector plate of the present invention.
In the figure: 1. spraying the tower wall; 2. a first-stage packing layer; 3. a first trough floor; 4. a secondary tank; 5. a first exhaust port; 6. a liquid collecting tank; 7. a second channel ceiling; 8. a second exhaust port; 9. a liquid collecting plate; 10. a ring wall plate; 11. a secondary packing layer; 12. and (4) a spraying port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a redistributor for collecting liquid for a waste gas treatment spray tower comprises a spray tower wall 1, a first-stage packing layer 2 is fixedly installed at the bottom of an inner cavity of the spray tower wall 1, a first tank bottom plate 3 is fixedly installed above the top end of the first-stage packing layer 2, a second tank 4 is fixedly installed on the surface of the top end of the tank bottom plate 3, a first exhaust port 5 located on one side of the second tank 4 is formed in the surface of the first tank bottom plate 3, a liquid collecting tank 6 is fixedly installed above the top end of the second tank 4, a second tank top plate 7 is fixedly installed on the top end of the liquid collecting tank 6, a second exhaust port 8 located on one side of the liquid collecting tank 6 is formed in the surface of the second tank top plate 7, a liquid collecting plate 9 is fixedly installed above the top end of the second tank top plate 7, a ring wall plate 10 is fixedly installed on the top end of the ring wall plate 10, a second-stage packing layer 11 is fixedly installed above the top end of the second tank top plate 11, and a spray port 12 is fixedly installed on the top end of the second tank top plate 7.
Wherein, the height value of second grade groove 4, increase progressively in proper order from the middle part to the outside, the length value of second grade groove 4, it decreases progressively in proper order from the middle part to the outside, adopt this type of height value and length value, second grade groove 4 that has specific regularity change, make the liquid that sprays whereabouts, and when the notch of second grade groove 4 that differs in length, according to the different velocity of flow of inslot liquid that sprays, the time that makes the liquid flow consume is the opposite trend increase and decrease, thereby reach when liquid that sprays falls to one-level packing layer 2, its required time point keeps unanimous, not only make the liquid that sprays that flows downwards to one-level packing layer 2 distribute evenly, and no time deviation, thereby show improvement exhaust purification effect.
Wherein, the shape of first exhaust port 5 is rectangle, its opening length value is unanimous with the outside channel length value of second grade groove 4, the big or small shape of first exhaust port 5 is the same with second exhaust port 8, through first exhaust port 5, the evenly distributed of second exhaust port 8, make waste gas when upwards transporting, can concentrate on the middle part of spray column, and waste gas is become each by evenly separating, avoid gaseous separation all around, in addition, through changing the sunshade into perpendicular riser, can avoid that traditional tilting sunshade distributor exists, with the gas guide tower wall, and lead to the skew problem of gas flow direction.
Wherein, the height value of catch basin 6, from the middle part degressive in proper order to the outside, the length value of catch basin 6, from the middle part to the outside in proper order increase progressively, adopt with 4 height value in second grade groove and length value, change rule all opposite catch basin 6, utilize catch basin 6 with its top collecting plate 9, the spray liquid of collection transports downwards, the cross-sectional area of the notch of reuse catch basin 6 is inconsistent, and the channel height value is not uniform, flow rate and the time spent of flowing are all different promptly, and the flow rate and the change trend of the time spent of flowing, both are opposite, thereby when guaranteeing that spray liquid is collected, not only carried out even branch liquid, but also can reach the whereabouts transportation of same time, help follow-up second grade groove 4 to spray liquid distribution work.
Wherein, the liquid collecting plate 9 is evenly distributed above the top end of the liquid collecting groove 6 at intervals, and the length value of the groove plate at the bottom end of the liquid collecting plate 9 is equal to the length value of the notch of the corresponding liquid collecting groove 6.
The use method (working principle) of the invention is as follows:
when the spray tower is installed, the structures of the spray opening 12, the secondary packing layer 11, the annular wall plate 10 and the like are sequentially installed inside the spray tower wall 1, after the device is installed, the spray opening 12 is opened, spray liquid is sprayed downwards to the secondary packing layer 11 and the primary packing layer 2 through the existing liquid supply equipment through the spray opening 12, after the secondary packing layer 11 and the primary packing layer 2 are completely soaked, waste gas to be treated is injected from the bottom of the spray tower through the existing gas supply equipment, the waste gas is enabled to naturally flow from bottom to top, and meanwhile, the spray liquid is continuously sprayed downwards from top to bottom and flows.
When the waste gas is treated, the bottom end of the secondary packing layer 11 begins to seep spray liquid downwards, and simultaneously, the wall flow phenomenon also occurs in the tower, the spray liquid on the tower wall is guided to the surface of the liquid collecting plate 9 by the annular wall plate 10, and simultaneously, the spray liquid in the middle can directly flow downwards to the surface of the liquid collecting plate 9, the collected spray liquid flows into the liquid collecting tank 6 through the second tank top plate 7, when the spray liquid flows into the channel with a long length value, the flow speed is small because the cross section area is larger, but the height value of the channel is correspondingly short, the flow time is short, namely the flow rate and the time spent in flowing are changed in opposite trends, thereby ensuring that the spraying liquid can be uniformly separated while being collected, but also can realize the falling transportation of the spraying liquid at the same time, and is beneficial to the subsequent secondary tank 4 equipment to carry out the distribution work of the spraying liquid.
When the liquid that sprays when the whereabouts of 6 bottom notches of collecting tank at the same time of liquid, its liquid flows into secondary tank 4, through the design principle similar with collecting tank 6, utilize the change of channel height and length, make the velocity of flow be the opposite trend with the time that flows and change, then even be the secondary tank 4 of different length, when same time point, spray liquid also can spout simultaneously in every secondary tank 4, guarantee that the liquid that sprays is distributed evenly in secondary tank 4, and there is not the time difference, the liquid that sprays that flows down to one-level packing layer 2 promptly distributes evenly, thereby the exhaust purification effect has been improved.
After the spraying liquid passes through the first-stage packing layer 2, the spraying liquid is recycled by utilizing the existing recycling device.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a liquid is collected and is used redistributor for exhaust-gas treatment spray column, includes spray column wall (1), its characterized in that: a primary packing layer (2) is fixedly installed at the bottom of an inner cavity of the spray tower wall (1), a first tank bottom plate (3) is fixedly installed above the top end of the primary packing layer (2), a secondary tank (4) is fixedly installed on the surface of the top end of the tank bottom plate (3), a first exhaust port (5) located on one side of the secondary tank (4) is formed in the surface of the first tank bottom plate (3), a liquid collecting tank (6) is fixedly installed above the top end of the secondary tank (4), a second tank top plate (7) is fixedly installed on the top end of the liquid collecting tank (6), a second exhaust port (8) located on one side of the liquid collecting tank (6) is formed in the surface of the second tank top plate (7), a liquid collecting plate (9) is fixedly installed above the top end of the second tank top plate (7), a ring wall plate (10) is fixedly installed on the top end of the liquid collecting plate (9), a secondary packing layer (11) is fixedly installed above the top end of the ring wall plate (10), and a spraying port (12) is fixedly arranged above the top end of the secondary packing layer (11).
2. The liquid collecting redistributor for waste gas treatment spray tower as claimed in claim 1, wherein: the height value of the secondary groove (4) is gradually increased from the middle part to the outer side, and the length value of the secondary groove (4) is gradually decreased from the middle part to the outer side.
3. The liquid collecting redistributor for waste gas treatment spray tower as claimed in claim 1, wherein: the shape of the first exhaust port (5) is rectangular, the length value of the opening of the first exhaust port is consistent with the length value of the outermost channel of the secondary groove (4), and the size and the shape of the first exhaust port (5) are the same as those of the second exhaust port (8).
4. The liquid collecting redistributor for waste gas treatment spray tower as claimed in claim 1, wherein: the height value of the liquid collecting groove (6) is gradually decreased from the middle part to the outer side, and the length value of the liquid collecting groove (6) is gradually increased from the middle part to the outer side.
5. The liquid collecting redistributor for waste gas treatment spray tower as claimed in claim 1, wherein: the liquid collecting plates (9) are evenly distributed above the top ends of the liquid collecting grooves (6) at intervals, and the length value of the groove plate at the bottom ends of the liquid collecting plates (9) is equal to the length value of the corresponding notch of the liquid collecting groove (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110457314.4A CN113244741B (en) | 2021-04-27 | 2021-04-27 | Liquid collection redistributor for waste gas treatment spray tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110457314.4A CN113244741B (en) | 2021-04-27 | 2021-04-27 | Liquid collection redistributor for waste gas treatment spray tower |
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| CN113244741A true CN113244741A (en) | 2021-08-13 |
| CN113244741B CN113244741B (en) | 2022-11-08 |
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| CN210021647U (en) * | 2019-04-15 | 2020-02-07 | 天津天大天久科技股份有限公司 | Multistage slot type liquid distributor |
| CN210700011U (en) * | 2019-09-27 | 2020-06-09 | 江苏锐深化工机械科技有限公司 | Fluted disc gas-liquid distributor with mass transfer function |
| CN210813995U (en) * | 2019-07-23 | 2020-06-23 | 湖北汇泉榕泰智能装备有限公司 | Liquid collector of rectifying and separating tower |
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2021
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| JPH05184804A (en) * | 1992-01-17 | 1993-07-27 | Nippon Kagaku Kikai Seizo Kk | Liquid scattering device |
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|---|---|
| CN113244741B (en) | 2022-11-08 |
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