CN113457385B - Center slope type liquid collecting device and multi-cycle flue gas spray tower - Google Patents
Center slope type liquid collecting device and multi-cycle flue gas spray tower Download PDFInfo
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- CN113457385B CN113457385B CN202110740830.8A CN202110740830A CN113457385B CN 113457385 B CN113457385 B CN 113457385B CN 202110740830 A CN202110740830 A CN 202110740830A CN 113457385 B CN113457385 B CN 113457385B
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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
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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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
- B01D53/34—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
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a central slope type liquid collecting device, which comprises a guide plate and a drainage plate, wherein: the guide plate is provided with a front side and a reverse side, and the drainage groove is connected with the outer side of the guide plate so as to accommodate liquid sliding off from the surface of the front side of the guide plate; the guide plate includes guide plate body and shielding part, and the shielding part setting just with guide plate body fixed connection in the bleeder vent positive side, and the shielding part cavity forms the intercommunication passageway that both ends communicate with bleeder vent and gas guide hole respectively to the gas flow who supplies the guide plate opposite side is to the side, and the projection of the direction that shielding part dropped along liquid is greater than or equal to the projection of bleeder vent. The guide plate adopts a central arched form, the surface area is increased, more air holes are formed in a limited space, more shielding parts are arranged, the gas transmittance is improved, the shielding parts effectively shield liquid on the front side of the guide plate and diffuse the liquid to the periphery of the annular drainage groove, and the drainage groove is arranged on the periphery of the guide plate, so that the influence on the gas transmittance is small.
Description
Technical Field
The invention relates to the technical field of spray towers, in particular to a central slope type liquid collecting device and a multi-cycle flue gas spray tower.
Background
In waste gas treatment, mostly use the washing spray column, have very strong adsorption efficiency to waste gas, through acid-base neutralization reaction, absorb harmful gas, waste gas sprays the washing spray column and sets up multiple absorption reaction unit, has improved harmful gas's absorption efficiency.
The Chinese patent with the application number of CN201510960929.3 and the name of 'a liquid collecting device in a single-tower double-circulation desulfurization spray tower' discloses a liquid collecting device in a single-tower double-circulation desulfurization spray tower, which aims to solve the problem that the traditional liquid collecting device causes the uniformity of a flue gas flow field to be poor. The liquid collecting device comprises a ridge type guide plate, a liquid collecting groove and an annular groove; in the liquid collecting device, a plurality of ridge type guide plates are arranged at equal intervals along the horizontal direction above the liquid collecting device, a plurality of liquid collecting grooves are arranged at equal intervals along the horizontal direction below the liquid collecting device, the liquid collecting grooves and the ridge type guide plates are arranged in a staggered mode from left to right, and gaps are reserved between the liquid collecting grooves and the ridge type guide plates; both ends of the liquid collecting tank are communicated with the annular groove on the tower wall; the slurry guiding pipeline penetrates through the tower wall to be communicated with the annular groove, and the slurry in the annular groove is returned to the secondary circulation loop reaction tank. The invention can well solve the problem that the uniformity of the flow field of the flue gas passing through the traditional liquid collecting device becomes poor, and scale is not easy to form. The surface guide plate and the liquid collecting tank are arranged at intervals, so the total gas transmittance is lower, and the gas circulation is not facilitated.
Therefore, a liquid collecting device with high gas permeability is needed.
Disclosure of Invention
The invention aims to overcome the technical defects and provide a central slope type liquid collecting device which is used for solving the problem of low gas transmittance of the liquid collecting device of the spray tower in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is as follows: a center slope type liquid collecting device comprises a plurality of guide plates and a drainage plate, wherein: the guide plates are provided with a front side surface used for guiding liquid and a reverse side surface used for guiding gas into the front side surface, a plurality of guide plates are annularly arranged and are arched in the center, the adjacent guide plates are mutually connected so that the front side surfaces of the guide plates form a guide surface for the liquid to slide to the periphery, the outer sides of the guide plates are fixedly connected with the drainage plates, and the regions of the drainage plates surrounding the circumferential outer sides of the guide plates are provided with annular drainage grooves for containing the liquid sliding from the front side surfaces of the guide plates; the guide plate comprises a guide plate body and a plurality of shielding parts, a plurality of air holes are formed in the guide plate body, the shielding parts shield the air holes in the front side face and are fixedly connected with the guide plate body, the shielding parts are formed with air guide holes, the shielding parts are hollow and form communication channels, two ends of each communication channel are communicated with the air holes and the air guide holes respectively, so that the air on the reverse side of the guide plate can flow to the front side, and the projection of the shielding parts along the falling direction of liquid is larger than or equal to that of the air holes, so that the liquid is prevented from flowing from the front side of the guide plate to the reverse side of the guide plate.
Preferably, adjacent guide plates are sequentially connected to form an included angle.
Preferably, one side of each of the guide plates abuts against one position, and the other sides of the guide plates are sequentially connected to form a broken line waveform.
Preferably, the air guide holes are vertically arranged.
Preferably, the opening direction of the air-guide hole is substantially the same as the liquid flow direction on both sides of the shielding part, so as to prevent the liquid on the front side of the deflector from flowing into the communication channel through the air-guide hole.
Preferably, the central slope type liquid collecting device further comprises a plurality of blocking plates, the blocking plates are arranged at the air guide holes, and the blocking plates move up and down to adjust the shielding area of the air guide holes.
Preferably, the central slope type liquid collecting device further comprises a connecting frame, the blocking plates are fixedly connected with the connecting frame, and the connecting frame is arranged below the guide plate.
The invention also provides a multi-cycle flue gas spray tower, which comprises the central slope type liquid collecting device, a spray tower body, a first spray layer and a second spray layer, wherein: the first spraying layer and the second spraying layer are arranged in the spray tower body, the first spraying layer is arranged below the second spraying layer, and the central slope type liquid collecting device is arranged between the first spraying layer and the second spraying layer.
Preferably, the multi-circulation flue gas spray tower further comprises a first circulation pump, and the first circulation pump is respectively connected with the bottom of the spray tower and the first spray layer through a pipeline so as to extract the liquid at the bottom of the spray tower to the first spray layer.
Preferably, the multi-cycle flue gas spray tower further comprises a circulation tank and a second circulation pump, wherein the drainage tank is connected with the circulation tank through a pipeline to supply liquid in the drainage tank to flow to the circulation tank, and the second circulation pump is respectively connected with the circulation tank and the second spray layer through a pipeline to extract the liquid in the circulation tank to the second spray layer.
Compared with the prior art, the invention has the beneficial effects that: the guide plate adopts the form that the center is hunched up, increases the surface area, offers more bleeder vents, sets up more shielding parts in limited space, improves gas permeability, and the shielding part effectively shelters from the liquid of guide plate positive side to with its diffusion to annular drainage groove all around, the drainage groove sets up around the guide plate, and is less to gas permeability's influence.
Drawings
FIG. 1 is a front perspective view of a center ramped style liquid trap provided by the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an opposite side perspective view of a deflector plate and a flow guide plate of the center ramp type liquid collection device provided by the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a front side perspective view of a baffle plate and a connecting bracket of the center ramp type liquid trap provided by the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at C;
FIG. 7 is a schematic view of the connection structure of the multi-cycle flue gas spray tower provided by the invention;
reference numerals: the device comprises a guide plate 1, a flow guide plate 2, a flow guide plate 3, a barrier plate 4, a connecting frame 5, a spray tower body 6, a first spray layer 7, a second spray layer 8, a first circulating pump 9, a circulating pool 10, a second circulating pump 11, a guide plate body 12, a shielding part 21, a flow guide groove 21, a 111-air hole and a 121-air hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, the present embodiment provides a central slope type liquid collecting device, which includes a guide plate 1 and a flow guiding plate 2, wherein the guide plate 1 is used to collect liquid on a positive side and circulate gas on a reverse side, and the flow guiding plate 2 is used to collect the liquid collected by the guide plate 1, where:
please refer to fig. 1, fig. 2, fig. 3 and fig. 4, the guide plate 1 has a front side for guiding liquid and a reverse side for guiding gas into the front side, the plurality of guide plates 1 are annularly arranged and center arched, so that the liquid falling from the front side of the guide plate 1 can flow around along the inclined guide plate 1, the adjacent guide plates 1 are connected with each other to form a guide surface for the liquid to slide around for the front side of the plurality of guide plates 1, the outer side of the guide plate 1 is fixedly connected with the flow guide plate 2, the area of the flow guide plate 2 surrounding the circumferential outer side of the guide plate 1 is provided with an annular flow guide groove 21, and the flow guide groove 21 is connected with the outer side of the guide plate 1 to accommodate the liquid sliding from the front side surface of the guide plate 1.
In a preferred embodiment, the adjacent deflectors 1 are sequentially connected to form an included angle, specifically, one side of each of the deflectors 1 abuts against one position, and the other side of each of the deflectors 1 is sequentially connected to form a zigzag waveform. The structure can increase the surface area of the guide plate 1, and more air holes 111 and shielding parts 12 can be arranged in a limited space to increase the air permeability of the guide plate 1.
Referring to fig. 1 and 2, as a preferred embodiment, the central slope type liquid collecting device further includes a plurality of blocking plates 3, the blocking plates 3 are disposed at the gas holes 121, and the blocking plates 3 move up and down to adjust the shielding area of the gas holes 121, so as to adjust the flow velocity of the gas at the gas holes 121.
Referring to fig. 3 and 4, further, the center slope type liquid collecting device further includes a connecting frame 4, the blocking plates 3 are all fixedly connected with the connecting frame 4, and the connecting frame 4 is disposed below the guide plate 1. Therefore, the positions of all the baffle plates 3 connected with the connecting frame 4 can be directly adjusted by moving the connecting frame, and the adjustment is more convenient. The connection frame 4 in this embodiment is also arranged in a ramp shape, and its connection shape is similar to that of the baffle 1 so that each blocking plate 3 corresponds to an air vent 121.
Referring to fig. 7, the present invention further provides a multi-cycle flue gas spray tower, which includes the central slope type liquid collecting device, a spray tower body 5, a first spray layer 6, and a second spray layer 7, wherein:
the first spraying layer 6 and the second spraying layer 7 are arranged in the spraying tower body 5, the first spraying layer 6 is arranged below the second spraying layer 7, and the central slope type liquid collecting device is arranged between the first spraying layer 6 and the second spraying layer 7.
Further, this multicycle flue gas spray column still includes first circulating pump 8, and first circulating pump 8 respectively with spray column bottom and the first 6 pipe connections that spray layer, with spray column bottom liquid extraction to the first layer 6 that sprays, realize the first circulation.
Further, this multicycle flue gas spray column still includes circulation tank 9 and second circulating pump 10, and drainage groove 21 and circulation tank 9 pipe connection to supply liquid flow to circulation tank 9 in the drainage groove 21, second circulating pump 10 sprays layer 7 pipe connection with circulation tank 9 and second respectively, sprays layer 7 with the extraction circulation tank 9 in liquid to the second. Because the liquid that the second sprayed layer 7 department has already sprayed through first spraying layer 6, and gaseous harmful substance content wherein sprays the lower of layer 6 than first, sprays for the second time and can improve and spray the effect, if the absorption liquid absorption concentration height did not in time change in the first spraying layer 6 simultaneously, leads to gas in the first circulation to spray the absorption effect not good, can also spray the absorption once more in the second spraying layer 7.
In summary, according to the center slope type liquid collecting device provided by the invention, the flow guide plate adopts a center arch form, the surface area is increased, more air holes are formed in a limited space, more shielding parts are arranged, the gas transmittance is improved, the liquid on the front side of the flow guide plate is effectively shielded by the shielding parts and is diffused to the annular drainage grooves all around, and the drainage grooves are arranged all around the flow guide plate, so that the influence on the gas transmittance is small.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a center slope formula collection liquid device which characterized in that, includes a plurality of guide plates and a drainage plate, wherein:
the flow guide plates are provided with a front side surface for guiding liquid and a reverse side surface for guiding gas into the front side surface, a plurality of flow guide plates are annularly arranged and are arched in the center, the adjacent flow guide plates are mutually connected so that the front side surfaces of the plurality of flow guide plates form flow guide surfaces for the liquid to slide to the periphery, the outer sides of the flow guide plates are fixedly connected with the flow guide plates, and the areas of the flow guide plates, which surround the outer sides of the flow guide plates, are provided with annular flow guide grooves for accommodating the liquid sliding from the front side surfaces of the flow guide plates;
the guide plate comprises a guide plate body and a plurality of shielding parts, the guide plate body is provided with a plurality of air holes, the shielding parts shield the air holes on the front side surface and are fixedly connected with the guide plate body, the shielding parts are provided with air guide holes, the shielding parts are hollow and form communicating channels with two ends respectively communicated with the air holes and the air guide holes so that gas on the reverse side of the guide plate flows to the front side, and the projection of the shielding parts along the falling direction of liquid is greater than or equal to that of the air holes so as to prevent the liquid from flowing from the front side of the guide plate to the reverse side of the guide plate;
the air guide holes are vertically arranged;
the opening direction of the air guide hole is approximately the same as the liquid flow direction of two sides of the shielding part, so that the liquid on the front side of the guide plate is prevented from flowing into the communication channel through the air guide hole.
2. The center ramp type liquid collector as claimed in claim 1, wherein adjacent baffles are connected in sequence to form an included angle.
3. The center-slope liquid collecting device as claimed in claim 2, wherein one side of each of the plurality of baffles abuts against one position, and the other sides of the plurality of baffles are connected in sequence to form a broken line waveform.
4. The center slope type liquid collecting device as claimed in claim 3, wherein the center slope type liquid collecting device further comprises a plurality of blocking plates, the blocking plates are arranged at the air guide holes, and the blocking plates move up and down to adjust the shielding area of the air guide holes.
5. The center slope type liquid collecting device as claimed in claim 4, wherein the center slope type liquid collecting device further comprises a connecting frame, a plurality of blocking plates are fixedly connected with the connecting frame, and the connecting frame is arranged below the guide plate.
6. A multi-cycle flue gas spray tower, comprising a spray tower body, a first spray layer, a second spray layer and a central slope type liquid collecting device according to any one of claims 1 to 5, wherein:
the first spraying layer and the second spraying layer are arranged in the spraying tower body, the first spraying layer is arranged below the second spraying layer, and the central slope type liquid collecting device is arranged between the first spraying layer and the second spraying layer.
7. The multi-cycle flue gas spray tower of claim 6 further comprising a first recycle pump in plumbing connection with the spray tower bottom and the first spray level, respectively, to draw liquid from the spray tower bottom to the first spray level.
8. The multi-cycle flue gas spray tower of claim 6 further comprising a circulation tank and a second circulation pump, wherein the drainage tank is connected to the circulation tank through a pipeline so that liquid in the drainage tank flows to the circulation tank, and the second circulation pump is respectively connected to the circulation tank and the second spray layer through a pipeline so as to pump liquid in the circulation tank to the second spray layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740830.8A CN113457385B (en) | 2021-06-30 | 2021-06-30 | Center slope type liquid collecting device and multi-cycle flue gas spray tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740830.8A CN113457385B (en) | 2021-06-30 | 2021-06-30 | Center slope type liquid collecting device and multi-cycle flue gas spray tower |
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| Publication Number | Publication Date |
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| CN113457385A CN113457385A (en) | 2021-10-01 |
| CN113457385B true CN113457385B (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110740830.8A Active CN113457385B (en) | 2021-06-30 | 2021-06-30 | Center slope type liquid collecting device and multi-cycle flue gas spray tower |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708453A (en) * | 2009-11-24 | 2010-05-19 | 中冶长天国际工程有限责任公司 | Separation tower plate for segmental type reaction tower |
| CN106178919A (en) * | 2016-08-31 | 2016-12-07 | 陕西省石油化工研究设计院 | Wave liquid collector and multi cycle flue gas desulfurization spray tower |
| CN208066094U (en) * | 2018-03-07 | 2018-11-09 | 北京北清环科环境工程有限公司 | A kind of ridge type desulfurization liquid collecting pallet |
| CN213408234U (en) * | 2020-09-24 | 2021-06-11 | 北京禹泰环保工程有限公司 | Wet flue gas desulfurization device |
-
2021
- 2021-06-30 CN CN202110740830.8A patent/CN113457385B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708453A (en) * | 2009-11-24 | 2010-05-19 | 中冶长天国际工程有限责任公司 | Separation tower plate for segmental type reaction tower |
| CN106178919A (en) * | 2016-08-31 | 2016-12-07 | 陕西省石油化工研究设计院 | Wave liquid collector and multi cycle flue gas desulfurization spray tower |
| CN208066094U (en) * | 2018-03-07 | 2018-11-09 | 北京北清环科环境工程有限公司 | A kind of ridge type desulfurization liquid collecting pallet |
| CN213408234U (en) * | 2020-09-24 | 2021-06-11 | 北京禹泰环保工程有限公司 | Wet flue gas desulfurization device |
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| CN113457385A (en) | 2021-10-01 |
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