WO2009082878A1 - Colonne de pulvérisation pour le traitement de gaz combustible et manchon de collecte de gaz utilisé dans la colonne de pulvérisation - Google Patents

Colonne de pulvérisation pour le traitement de gaz combustible et manchon de collecte de gaz utilisé dans la colonne de pulvérisation Download PDF

Info

Publication number
WO2009082878A1
WO2009082878A1 PCT/CN2008/001586 CN2008001586W WO2009082878A1 WO 2009082878 A1 WO2009082878 A1 WO 2009082878A1 CN 2008001586 W CN2008001586 W CN 2008001586W WO 2009082878 A1 WO2009082878 A1 WO 2009082878A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
gas collecting
collecting ring
spray tower
ring according
Prior art date
Application number
PCT/CN2008/001586
Other languages
English (en)
Chinese (zh)
Inventor
Yang Wang
Shuzhi Wu
Zhengtao Xu
Yunfu Fan
Yichen Cui
Ming Zhang
Yongwang Li
Original Assignee
Beijing Bootes Electric Power Sci-Tech Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Bootes Electric Power Sci-Tech Co., Ltd. filed Critical Beijing Bootes Electric Power Sci-Tech Co., Ltd.
Priority to CN2008801141777A priority Critical patent/CN101855004B/zh
Publication of WO2009082878A1 publication Critical patent/WO2009082878A1/fr

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/12—Methods and means for introducing reactants
    • B01D2259/126—Semi-solid reactants, e.g. slurries

Definitions

  • the invention belongs to the technical field of environmental protection, and relates to a spray tower used in a wet flue gas desulfurization spray tower of a thermal power plant or other fields, and a gas collecting ring used in the spray tower. Background technique
  • the spray empty tower is the mainstream tower type of the wet desulfurization process. It has few internal components, so it is not easy to scale, smoke and absorption. Reverse liquid contact is more conducive to the absorption of sulfur dioxide, but because the spray tower is close to the tower wall, the liquid film overlap is not as dense as other areas, belonging to the spray weak area, also known as the spray thin phase area, where the flue gas flow rate is higher.
  • the spray liquid has a weak ability to capture sulfur dioxide, which affects the desulfurization efficiency of the spray tower.
  • a gas liquid contactor with a liquid redistribution device is disclosed in U.S. Patent No. 6,550,751, the entire disclosure of which is incorporated herein.
  • a deflection means is provided on the wall of the tower to deflect the liquid from the wall of the tower into contact with the gas.
  • a spray tower having an absorbent slurry redistribution device is also disclosed in Chinese Patent Application No. CN1785482A, issued June 14, 2006. Wherein the absorbent slurry redistribution device is disposed obliquely in the wall of the spray tower so that the wall flow can be collected.
  • the technical problem to be solved by the invention is to further improve the performance of the spray tower, further improve the desulfurization efficiency, and provide a gas gathering ring which can make the flue gas gather into the spray dense area and the flue gas in the flow guide tower. Furthermore, another additional technical problem addressed by the present invention is to conduct the flow and make full use of the absorbent slurry.
  • the technical solution of the present invention is to provide a gas collecting ring for a spray tower for flue gas treatment, characterized in that the gas collecting ring comprises: a first plate, the first plate is connected at one end thereof On the side wall of the spray tower, and the first plate extends obliquely upward from the side wall of the spray tower toward the center of the spray tower.
  • the gas collecting ring further comprises: a second plate, the second plate is connected to the side wall of the spray tower above the first plate, and the second plate is sprayed from the spray The side wall of the tower extends obliquely downward toward the center of the spray tower.
  • the present invention also provides a spray tower for flue gas treatment comprising the above-described gas collecting ring.
  • the spray tower preferably has a gas collecting ring at the lower part of each spray layer, so that the flue gas no longer climbs along the tower wall, but is guided by the gas collecting ring to the central spray dense area of the tower to reduce smoke escape. Increased desulfurization efficiency.
  • the gas collecting ring is spliced into a ridge shape by two plates, the tip of the ridge is pointed into the tower, the root is fixed to the tower wall, and the apex angle 60 is ridged.
  • the coverage area of the gas collecting ring is preferably equal to the distance of the outermost nozzle from the tower wall. For different sizes of spray towers, this distance is also different, typically 400-800mm.
  • the material used for the gas ring can be carbon steel plus glass flake resin, alloy, glass steel and other anti-corrosion materials.
  • the technical effect that can be achieved by the invention is that: the flue gas is led to the middle of the tower through the gas collecting ring, so that the flue gas sweeps through the spray-intensive area, reduces the smoke escape, and improves the desulfurization efficiency.
  • the gas collecting ring also causes the absorbent slurry to no longer flow into the slurry pool along the wall of the column, but is re-leached to the absorption zone, making full use of the absorption slurry.
  • the ridge type gas collecting ring has the advantages of low pressure loss, non-fouling, easy cleaning, and also has the function of reinforcing the tower body.
  • Figure 1 is a schematic view showing the overall structure of a spray tower for flue gas treatment.
  • Figure 2 is an enlarged schematic view of a portion A in Figure 1.
  • Figure 3 is a three dimensional schematic view of the gas collecting ring structure shown in Figure 2 for use in a spray tower.
  • Figure 4 is a modification of the cross-sectional shape of the gas collecting ring attached to the side wall of the spray tower.
  • Figure 5 is another variation of the cross-sectional shape of the gas collecting ring attached to the side wall of the spray tower.
  • Figure 6 is still another modification of the cross-sectional shape of the gas collecting ring attached to the side wall of the spray tower.
  • Figure 7 is still another modification of the cross-sectional shape of the gas collecting ring attached to the side wall of the spray tower.
  • Figure 8 is still another modification of the cross-sectional shape of the gas collecting ring attached to the side wall of the spray tower.
  • Figure 9 is a further modification of the cross-sectional shape of the gas collecting ring attached to the side wall of the spray tower.
  • Fig. 10 is still another modification of the cross-sectional shape of the gas collecting ring attached to the side wall of the spray tower.
  • Figure 11 is a further variant of the cross-sectional shape of the gas collecting ring attached to the side wall of the spray tower.
  • the flue gas enters the spray tower through the spray tower inlet 1 and climbs up through the first gas trap 4, the first spray layer 8, the second gas trap 5, and the second spray.
  • Layer 9 third layer of gas collecting ring 6, third layer of spray layer 10, fourth layer of gas collecting ring 7, fourth layer of spray layer 1 1 , mist eliminator layer 12, flowing out from spray tower outlet 3.
  • the number of the spray layer and the corresponding gas collecting ring can be arbitrarily changed according to different conditions, and there are two, three or more layers, and here is only an example of four layers of spraying. Layering arrangement.
  • the conventional conventional spray tower has become the mainstream tower type in the wet desulfurization technology because of its low internal structure and less fouling, but it has its technical disadvantages.
  • the liquid film coverage in the middle of the spray tower is very high, the multi-layer liquid film alternates with each other, the flue gas is difficult to escape, and the slurry scrubbing gas is very strong, but the liquid film near the tower wall is no longer due to the limitation of the tower wall.
  • the technical solution of the preferred embodiment of the present invention is the first layer of the spray layer 8, the second The first layer of the gas collecting ring 4, the second layer of the gas collecting ring 5, and the third layer of the gas collecting ring 6 are respectively disposed under the spray layer 9, the third spray layer 10, and the fourth spray layer 1
  • the four-layer gas collecting ring 7 aims to shield the spray dilute phase zone and divert the flue gas to the spray dense phase zone, thereby improving the velocity field distribution in the tower, reducing flue gas escape and improving the desulfurization efficiency.
  • the structure of the first layer gas collecting ring 4 will be exemplified with reference to Figs. 2 and 3, and the gas collecting ring structures of the other layers are the same, and the description thereof will be omitted.
  • the gas collecting ring 4 is preferably spliced into a ridge shape by the upper plate 41 and the lower plate 42, preferably at an angle of 60° between the two plates, the ridge tip is directed to the inside of the tower, and the root is fixed to the tower wall, in the tower.
  • a ring is formed around the inside of the tower wall (see Figure 3).
  • the distance from the ridge tip of the roof structure (ie, the intersection of the upper and lower plates) to the tower wall is preferably equal to the distance from the outermost nozzle of the spray layer to the tower wall. This distance is also different for different sizes of spray towers, generally 400. -800mm between.
  • the gas ring material carbon steel and glass flake resin, alloy, glass steel and other anti-corrosion materials can be used.
  • the gas collecting ring can be made of carbon steel and glass flake resin. At this time, due to the small size of the gas collecting ring, it can be directly connected to the tower wall.
  • the size of the gas collecting ring is also larger, and the self-weight and the impact load are also large. It is necessary to consider installing the reinforcing and supporting members in the gas collecting ring, for example, on the upper plate.
  • a stiffener or reinforcing rib is mounted on the 41 and/or lower plate 42.
  • both the upper plate 41 and the lower plate 42 of the gas collecting ring are 120 with the tower wall. Angle, as shown in Figure 2, after the flue gas is diverted, the pressure loss is not large, which is suitable for the transformation of the performance of the old tower.
  • the upper plate 4 1 and/or the lower plate 42 may be smoothly transitioned with the tower wall or may be convexly curved from the tower wall, thus resulting in various modifications as shown in Figs.
  • the cross-sectional shape of the upper plate 4 1 is an upwardly convex circular arc shape
  • the sectional shape of the lower plate 42 is a linear shape extending obliquely upward.
  • the cross-sectional shape of the upper plate 41 is an upwardly convex circular arc shape
  • the lower plate 42 is smoothly transitioned with the tower wall.
  • the cross-sectional shape of the upper plate 41 is a linear shape extending obliquely downward, and the lower plate 42 is smoothly transitioned with the tower wall.
  • the upper plate 41 is smoothly transitioned with the tower wall, and the cross-sectional shape of the lower plate 42 is a straight shape extending obliquely upward.
  • the cross-sectional shape of the upper plate 41 is a linear shape extending obliquely downward, and the cross-sectional shape of the lower plate 42 is a downwardly convex circular arc shape.
  • the cross-sectional shape of the upper plate 4 1 is an upwardly convex circular arc shape
  • the cross-sectional shape of the lower plate 42 is a downwardly convex circular arc shape.
  • the upper plate 4 1 and the tower wall form a smooth transition
  • the upper plate 41 is smoothly transitioned with the tower wall
  • the cross-sectional shape of the lower plate 42 is a downwardly convex circular arc shape.
  • the gas collecting ring not only has a function of guiding the flue gas through the lower plate 42, but also has a function of sufficiently utilizing the slurry through the upper plate 41.
  • a conventional spray tower in which such a gas ring is not provided, a large amount of slurry flows down the tower wall to the slurry tank, so that the slurry is not fully utilized.
  • the gas collecting plate upper plate 41 causes the slurry flowing down the tower wall to be re-leached into the spray tower, so that the part of the slurry is re-contacted with the flue gas, so as to make full use of the slurry.
  • the circulation pump works to save energy. There is no dead angle in the gas collecting ring, and the fouling phenomenon is not easy to occur after the slurry flows.

Landscapes

  • 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)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

L'invention porte sur un manchon de collecte de gaz (4, 5, 6, 7) utilisé dans une colonne de pulvérisation pour le traitement de gaz combustible et sur une colonne de pulvérisation comprenant ledit manchon de collecte de gaz (4, 5, 6, 7). Le manchon de collecte de gaz (4, 5, 6, 7) comprend une première plaque (42). Une extrémité de la première plaque (42) est reliée à la paroi latérale de la colonne de pulvérisation et la première plaque (42) s'étend progressivement vers le haut à partir de la paroi latérale de la colonne de pulvérisation vers le centre de la colonne de pulvérisation.
PCT/CN2008/001586 2007-12-29 2008-09-05 Colonne de pulvérisation pour le traitement de gaz combustible et manchon de collecte de gaz utilisé dans la colonne de pulvérisation WO2009082878A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008801141777A CN101855004B (zh) 2007-12-29 2008-09-05 用于烟气处理的喷淋塔和用于该喷淋塔中的聚气环

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007103060502A CN101274214A (zh) 2007-12-29 2007-12-29 用于烟气处理的喷淋塔和用于该喷淋塔中的聚气环
CN200710306050.2 2007-12-29

Publications (1)

Publication Number Publication Date
WO2009082878A1 true WO2009082878A1 (fr) 2009-07-09

Family

ID=39994332

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/001586 WO2009082878A1 (fr) 2007-12-29 2008-09-05 Colonne de pulvérisation pour le traitement de gaz combustible et manchon de collecte de gaz utilisé dans la colonne de pulvérisation

Country Status (3)

Country Link
CN (2) CN101274214A (fr)
TR (1) TR201005158T1 (fr)
WO (1) WO2009082878A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114042374A (zh) * 2021-11-16 2022-02-15 临西县军华机械配件有限公司 一种防壁流的碱液喷淋塔

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101274214A (zh) * 2007-12-29 2008-10-01 北京博奇电力科技有限公司 用于烟气处理的喷淋塔和用于该喷淋塔中的聚气环
CN107349779A (zh) * 2017-09-12 2017-11-17 浙江千尧环境工程有限公司 一种吸收塔
CN112090266A (zh) * 2020-09-11 2020-12-18 北京清新环境技术股份有限公司 湿法脱硫装置
CN215610540U (zh) * 2021-06-08 2022-01-25 江苏峰业科技环保集团股份有限公司 一种烟气湿法脱硫装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2219432Y (zh) * 1995-04-07 1996-02-07 付金兴 冲击自激式组合除尘器
CN2236076Y (zh) * 1995-12-14 1996-09-25 烟台开发区锅炉安装有限责任公司 一种脱硫除尘器
JP2001293330A (ja) * 2000-04-12 2001-10-23 Babcock Hitachi Kk 気液接触方法と装置
CN101274214A (zh) * 2007-12-29 2008-10-01 北京博奇电力科技有限公司 用于烟气处理的喷淋塔和用于该喷淋塔中的聚气环

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1319629C (zh) * 2005-11-21 2007-06-06 孙克勤 具有吸收剂浆液再分布装置的喷淋塔
CN100496674C (zh) * 2007-04-30 2009-06-10 武汉凯迪电力环保有限公司 双侧对冲进气的湿式氨法烟气脱硫工艺及其装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2219432Y (zh) * 1995-04-07 1996-02-07 付金兴 冲击自激式组合除尘器
CN2236076Y (zh) * 1995-12-14 1996-09-25 烟台开发区锅炉安装有限责任公司 一种脱硫除尘器
JP2001293330A (ja) * 2000-04-12 2001-10-23 Babcock Hitachi Kk 気液接触方法と装置
CN101274214A (zh) * 2007-12-29 2008-10-01 北京博奇电力科技有限公司 用于烟气处理的喷淋塔和用于该喷淋塔中的聚气环

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114042374A (zh) * 2021-11-16 2022-02-15 临西县军华机械配件有限公司 一种防壁流的碱液喷淋塔
CN114042374B (zh) * 2021-11-16 2023-11-07 临西县军华机械配件有限公司 一种防壁流的碱液喷淋塔

Also Published As

Publication number Publication date
CN101855004A (zh) 2010-10-06
CN101274214A (zh) 2008-10-01
CN101855004B (zh) 2012-10-10
TR201005158T1 (tr) 2011-07-21

Similar Documents

Publication Publication Date Title
CN106457140B (zh) 旋汇耦合超净脱硫除尘一体化系统及其脱硫除尘方法
CN105727700B (zh) 一种一体化超洁净脱硫除尘装置
WO2009082878A1 (fr) Colonne de pulvérisation pour le traitement de gaz combustible et manchon de collecte de gaz utilisé dans la colonne de pulvérisation
CN207838697U (zh) 一种带复合浮阀塔板的变径脱硫塔
CN202962195U (zh) 一种多管文丘里湿式脱硫除尘器
CN102944023A (zh) 一种湿烟囱内筒壁冷凝液收集装置
CN107349778A (zh) 烟气除雾冷却装置及烟气除雾冷却方法
CN207694563U (zh) 一种脱硫浆液收集装置
CN202569948U (zh) 一种湿法烟气脱硫脱硝的吸收装置
CN201329248Y (zh) 具有扰流环装置的喷淋塔
CN101642670B (zh) 旋流除尘脱硫装置
CN206138943U (zh) 一种强化水膜旋流除雾除尘装置
CN201271563Y (zh) 高效花岗岩脱硫塔
CN114832587B (zh) 一种冲渣水脱硫系统
CN201073590Y (zh) 烟气脱硫吸收塔
CN202410483U (zh) 一种喷淋旋流组合吸收塔
CN109453633A (zh) 一种用于烟气脱硫治理系统中的集液升气帽结构
CN201482414U (zh) 旋流除尘脱硫装置
CN201643975U (zh) 烟气脱硫循环浆液喷淋装置
CN211677093U (zh) 用于船舶废气洗涤塔的高效旋流塔盘、船舶废气洗涤系统
CN201208541Y (zh) 用于烟气处理的喷淋塔和用于该喷淋塔中的聚气环
CN210495900U (zh) 一种高效单塔脱硫协同除尘除雾装置
CN209076384U (zh) 一种组合式吸收塔
CN207254092U (zh) 烟气除雾冷却装置
CN202938328U (zh) 湿烟囱内筒壁冷凝液收集装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880114177.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08800582

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010/05158

Country of ref document: TR

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1)EPC (EPC FORM 1205A DATED 06-10-2010 )

122 Ep: pct application non-entry in european phase

Ref document number: 08800582

Country of ref document: EP

Kind code of ref document: A1