CN113457389A - Defroster sparge water recovery system - Google Patents
Defroster sparge water recovery system Download PDFInfo
- Publication number
- CN113457389A CN113457389A CN202110874130.8A CN202110874130A CN113457389A CN 113457389 A CN113457389 A CN 113457389A CN 202110874130 A CN202110874130 A CN 202110874130A CN 113457389 A CN113457389 A CN 113457389A
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- China
- Prior art keywords
- demister
- flushing water
- recovery system
- blade
- ridge
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
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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
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Gas Separation By Absorption (AREA)
Abstract
本发明公开了一种除雾器冲洗水回收系统，包括冲洗水管、汇流槽及若干喷嘴；各喷嘴的入口与冲洗水管相连通，各喷嘴正对屋脊式除雾器中的各除雾器叶片，汇流槽位于屋脊式除雾器的下方，且汇流槽的顶部开口正对各除雾器叶片的下端；屋脊式除雾器倾斜布置；除雾器叶片为弧形板结构；除雾器叶片底部的两侧面上均设置有若干导流凸起，该系统能够实现吸收塔内屋脊式除雾器冲洗水的高效回收，且不易堵塞。
The invention discloses a rinsing water recovery system for a mist eliminator, which comprises a flushing water pipe, a confluence groove and a plurality of nozzles; the inlet of each nozzle is communicated with the flushing water pipe, and each nozzle is directly opposite to each demister blade in a roof type mist eliminator. , the confluence groove is located below the ridge type demister, and the top opening of the confluence groove is facing the lower end of each demister blade; the ridge type demister is arranged obliquely; the demister blade is an arc-shaped plate structure; the demister blade Several diversion protrusions are arranged on both sides of the bottom, and the system can realize the efficient recovery of the flushing water of the ridge type mist eliminator in the absorption tower, and is not easy to be blocked.
Description
Technical Field
The invention belongs to the technical field of water saving, and relates to a flushing water recovery system of a demister.
Background
At present, the high-efficiency ridge demister installed at the outlet position at the top of the desulfurization absorption tower is generally adopted to realize the purpose of separating flue gas and liquid drops (liquid drops containing slurry) after wet desulfurization of industrial flue gas, the ridge demister adopts the inertia interception principle, the gas-liquid separation efficiency is high, and the ultralow emission requirement of the industrial flue gas can be met.
After solid-containing liquid drops carried in flue gas are separated by the demister, scale is easy to form, the demister is blocked, and a large amount of flushing water is needed for regular flushing. Because the water balance of the desulfurization system is limited, in order to reduce water inflow and water discharge, a large amount of washing water required by washing of the demister can not be met, the demister is often blocked, and the operation safety of a unit is seriously influenced. Therefore, the most effective solution to the insufficient amount of demister washing water is to collect and recycle demister washing water. Meanwhile, complex structural members in the desulfurization absorption tower are easy to block, and a collecting device is required to overcome the blocking risk.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a demister washing water recovery system which can realize the efficient recovery of ridge type demister washing water in an absorption tower and is not easy to block.
In order to achieve the aim, the flushing water recovery system of the demister comprises a flushing water pipe, a confluence groove and a plurality of nozzles;
the inlet of each nozzle is communicated with a flushing water pipe, each nozzle is over against each demister blade in the ridge demister, the converging groove is positioned below the ridge demister, and the top opening of the converging groove is over against the lower end of each demister blade;
the ridge type demister is obliquely arranged;
the demister blades are of arc-shaped plate structures;
both sides face of the bottom of the demister blade is provided with a plurality of flow guide bulges.
The bottom outlet of the confluence groove is connected with a drain pipe.
The outlet of the water discharge pipe is communicated with an external water tank of the absorption tower.
All nozzles are divided into two groups, wherein one group of nozzles is positioned at the upper side of the ridge type demister, and the other group of nozzles is positioned at the lower side of the ridge type demister.
From top to bottom, the size of each flow guide bulge is gradually increased.
Utilize the characteristics that ridge formula defroster slope was arranged, combine the defroster blade of arc structure, will spray the sparge water conservancy diversion between the defroster blade to converging the groove in, realize the collection of sparge water.
The two side surfaces of the bottom of each demister blade are provided with the plurality of flow guide bulges, the sizes of the flow guide bulges are gradually increased from top to bottom, and the collection of 80-99% flushing water is realized by adopting a multi-level progressive flow guide principle.
The invention has the following beneficial effects:
when the demister washing water recovery system is in specific operation, the characteristic of inclined arrangement of a ridge demister is utilized, demister blades of an arc plate structure are combined, washing water sprayed among the demister blades is guided to a confluence groove, and collection of the washing water is realized; meanwhile, the two side surfaces of the bottom of the demister blade are provided with the plurality of flow guide protrusions, the sizes of the flow guide protrusions are gradually increased from top to bottom, the multilevel progressive flow guide principle is adopted, the collection of 80% -99% flushing water is realized, and the structure is simple and is not easy to bond, deposit and scale. In addition, the invention realizes the recovery of the washing water of the demister, thereby increasing the washing frequency and the washing time of the demister, and ensuring that the demister and a washing water recovery system are in a wet and water flowing state and are not easy to block.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is an enlarged view at M in fig. 2.
Wherein, 1 is the defroster blade, 2 for converging the groove, 3 are the drain pipe, 4 are the support girder steel, 5 are ridge defroster, 6 are wash pipe, 7 are the nozzle.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. 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.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, 2 and 3, the demister washing water recovery system according to the present invention includes a washing water pipe 6, a confluence tank 2 and a plurality of nozzles 7;
the entry and the wash water pipe 6 of each nozzle 7 are linked together, each nozzle 7 is just to each defroster blade 1 in ridge defroster 5, each defroster blade 1 slope is arranged, it is located ridge defroster 5's below to converge groove 2, and the open-top of converging groove 2 is just to the lower extreme of each defroster blade 1, the bottom export of converging groove 2 is linked together with drain pipe 3, thereby collect the sparge water that the water conservancy diversion got off from among defroster blade 1 in the clearance, the export of drain pipe 3 is linked together with outside absorption tower outer water tank, in order to realize the recycle of defroster sparge water.
All the nozzles 7 are divided into two groups, wherein one group of nozzles 7 is located on the upper side of the ridge mist eliminator 5, and the other group of nozzles 7 is located on the lower side of the ridge mist eliminator 5.
The specific working process of the invention is as follows:
referring to fig. 1, two sets of nozzles 7 are arranged on the upper side and the lower side of a ridge demister 5, and the nozzles 7 are used for periodically spraying flushing water to wash gaps between demister blades 1, and because demister blades 1 in the ridge demister 5 are obliquely arranged, part of flushing water between the demister blades 1 is collected downwards along the demister blades 1 to a confluence groove 2, and the rest of flushing water does not reach the confluence groove 2 and falls into an absorption tower.
Refer to fig. 2 and fig. 3, because defroster blade 1 is the arc structure, and the both sides face of defroster blade 1 bottom all is provided with a plurality of water conservancy diversion archs, and from the top down, the bellied size of each water conservancy diversion increases gradually, thereby with the multilevel progressive water conservancy diversion of the sparge water between defroster blade 1, combine the slope arrangement effect of each defroster blade 1 in ridge defroster 5, can collect 80% -99% sparge water to converge in groove 2, through setting up at the drain pipe 3 that converges 2 lowest places in groove, discharge the defroster sparge water of collecting to the outer water tank of absorption tower, realize defroster sparge water recycle.
The invention is mainly characterized in that:
utilize the characteristics that 5 slopes of ridge defroster were arranged, combine the defroster blade 1 of arc plate structure, will spray the sparge water conservancy diversion between the defroster blade 1 to converge in the groove 2, realize the partial collection of sparge water.
A plurality of flow guide bulges are arranged on two side surfaces of the bottom of each demister blade 1, and a multi-level progressive flow guide principle is adopted, so that most of flushing water is collected and is not easy to bond, deposit and scale.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110874130.8A CN113457389A (en) | 2021-07-30 | 2021-07-30 | Defroster sparge water recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110874130.8A CN113457389A (en) | 2021-07-30 | 2021-07-30 | Defroster sparge water recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113457389A true CN113457389A (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110874130.8A Pending CN113457389A (en) | 2021-07-30 | 2021-07-30 | Defroster sparge water recovery system |
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| CN (1) | CN113457389A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413733A (en) * | 2021-07-30 | 2021-09-21 | 西安西热锅炉环保工程有限公司 | Flue gas sprays cooling and receives water system |
| CN113856332A (en) * | 2021-10-27 | 2021-12-31 | 西安热工研究院有限公司 | Water-saving type forward-installed ridge type demister |
| CN115738673A (en) * | 2022-11-21 | 2023-03-07 | 光大环境科技（中国）有限公司 | Gas lifting and liquid collecting device for washing tower and demister cleaning method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120167533A1 (en) * | 2011-01-05 | 2012-07-05 | Westinghouse Electric Company Llc | Demister vane in situ cleaning fixture |
| CN205288060U (en) * | 2015-12-31 | 2016-06-08 | 武汉凯迪电力环保有限公司 | Desulfurization demister washing water collection device |
| CN207980811U (en) * | 2018-02-09 | 2018-10-19 | 西安西热锅炉环保工程有限公司 | Mist eliminator flushing water recovery device in a kind of desulfuration absorbing tower |
| CN209221685U (en) * | 2018-09-28 | 2019-08-09 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of ridge type demister |
-
2021
- 2021-07-30 CN CN202110874130.8A patent/CN113457389A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120167533A1 (en) * | 2011-01-05 | 2012-07-05 | Westinghouse Electric Company Llc | Demister vane in situ cleaning fixture |
| CN205288060U (en) * | 2015-12-31 | 2016-06-08 | 武汉凯迪电力环保有限公司 | Desulfurization demister washing water collection device |
| CN207980811U (en) * | 2018-02-09 | 2018-10-19 | 西安西热锅炉环保工程有限公司 | Mist eliminator flushing water recovery device in a kind of desulfuration absorbing tower |
| CN209221685U (en) * | 2018-09-28 | 2019-08-09 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of ridge type demister |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413733A (en) * | 2021-07-30 | 2021-09-21 | 西安西热锅炉环保工程有限公司 | Flue gas sprays cooling and receives water system |
| CN113413733B (en) * | 2021-07-30 | 2025-02-14 | 西安西热锅炉环保工程有限公司 | A flue gas spray cooling and water collection system |
| CN113856332A (en) * | 2021-10-27 | 2021-12-31 | 西安热工研究院有限公司 | Water-saving type forward-installed ridge type demister |
| CN115738673A (en) * | 2022-11-21 | 2023-03-07 | 光大环境科技（中国）有限公司 | Gas lifting and liquid collecting device for washing tower and demister cleaning method |
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| PB01 | Publication | ||
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Application publication date: 20211001 |