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WO2018103340A1 - Épurateur d'eau pour l'élimination à haut rendement d'aérosol - Google Patents

Épurateur d'eau pour l'élimination à haut rendement d'aérosol Download PDF

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Publication number
WO2018103340A1
WO2018103340A1 PCT/CN2017/093400 CN2017093400W WO2018103340A1 WO 2018103340 A1 WO2018103340 A1 WO 2018103340A1 CN 2017093400 W CN2017093400 W CN 2017093400W WO 2018103340 A1 WO2018103340 A1 WO 2018103340A1
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WO
WIPO (PCT)
Prior art keywords
water
spray
layer
gas cap
water washing
Prior art date
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.)
Ceased
Application number
PCT/CN2017/093400
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English (en)
Chinese (zh)
Inventor
钟璐
胡小吐
刘勇
杨颖欣
胡静龄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong J-Tech Environment Science Co Ltd
Original Assignee
Guangdong J-Tech Environment Science 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 Guangdong J-Tech Environment Science Co Ltd filed Critical Guangdong J-Tech Environment Science Co Ltd
Publication of WO2018103340A1 publication Critical patent/WO2018103340A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • 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

Definitions

  • the utility model belongs to the technical field of flue gas dust removal, and relates to a water washing device, in particular to a water washing device with high efficiency for removing aerosol.
  • the flue gas desulfurization treatment method can be generally divided into a dry method, a semi-dry method, and a wet desulfurization process. At present, most thermal power plants use a wet desulfurization process for flue gas desulfurization.
  • Chinese patent CN 201454393 U discloses a novel ammonia flue gas desulfurization device for purifying flue gas discharged from the top of a desulfurization tower, comprising three independent absorption liquid circulation systems, and a raw material ammonia inlet port is arranged on the lower layer and the middle layer circulation line, so that The desulfurization tower always has a deamination section for recovering ammonia.
  • the cross section of the flue gas inlet and outlet is rectangular, the ratio of the length of the long side of the rectangle to the diameter of the tower body is 0.55-0.95, the inlet area of the flue gas is 0.20-0.40 of the tower body area; the cross section of the flue gas outlet is rectangular or round, and the flue gas outlet The area is 0.15-0.40 of the tower area.
  • the technology also discloses that a spray pipe, a packing layer and an air bubbling pipe are arranged in the desulfurization tower. Although the technology can stabilize the gas flow to a certain extent, the effect of the flue gas treatment is still not ideal.
  • CN103920371A discloses an absorption tower comprising an absorption device, characterized in that a cooling humidification device is coupled to the top of the absorption device, and an electric demisting device is coupled to the top of the cooling humidification device; the absorption device and the cooling humidification device Providing a first joint interface, a second joint interface is disposed between the cooling humidification device and the electric mist eliminator; the first and second joint interfaces are flanged or welded; the absorbing device is The liquid separation device, the desulfurization absorption section and the liquid storage section are sequentially arranged, the liquid separation device is provided with a circulating absorption liquid inlet, the liquid storage section is provided with a circulating absorption liquid outlet, and the lower part of the desulfurization absorption section is provided with smoke.
  • the cooling humidifying device comprises an upper gas liquid separating plate and a lower gas liquid separating plate, and a cooling liquid outlet is arranged adjacent to the upper gas liquid separating plate;
  • a coolant inlet is disposed adjacent to the lower gas-liquid partitioning plate, and a plurality of pipes are disposed between the upper and lower gas-liquid partitioning plates, and a humidifying liquid inlet is disposed at an upper portion of the pipe, and an external humidifying liquid is externally;
  • the electric defogging Top of the device Set flue gas outlet is packaged The electric demisting device and the packing layer are included, but the packing layer is disposed in the absorption tower, and the air flow of the flue gas is not adjusted.
  • the prior art absorption tower spray efficiency is not high, the gas-liquid contact surface is not large enough to affect the spray washing effect, entrainment of flue gas, and there are problems such as easy scaling.
  • the utility model provides a water washing device with high efficiency for removing aerosol, which overcomes the problems of poor washing effect and easy scaling of the existing absorption tower.
  • the utility model adopts the following technical solutions:
  • a high-efficiency aerosol removing water washing device is located inside the absorption tower, and includes a gas cap tray, a packing layer and a water washing spray layer in sequence along the flow direction of the flue gas, the gas cap tray including a chassis, the chassis
  • the side plate of the absorption tower is fixed in the absorption tower; one side of the chassis is provided with a water return port, and the spray washing water collected by the chassis flows to the recovery device through the water return port; a swirling gas cap, the flue gas enters from the bottom up in the middle of the swirling gas cap, and is exhausted from the upper part of the gas cap after demisting;
  • the filler layer is provided with a support beam, and the support beam is arranged with a grid plate on which the ceramic filler is laid;
  • the water spray spray layer is provided with a spray pipe and a spray nozzle, the spray pipe is connected with a water washing pump, a filter is arranged at the front end of the water washing pump, and a regulating valve of the water supply pump outlet pipe is used for water supply to the absorption tower. In order to maintain the absorption tower level balance.
  • the swirling gas cap is distributed across the central axis of the water return port of the chassis and evenly drains the chassis.
  • the swirling gas cap comprises a sleeve, a liquid collecting bottom plate, a blade, a blind plate and a lower water tank; the upper end of the blade is connected to the sleeve, the lower end is connected to the blind plate, and the blind plate is fixed on the liquid collecting plate.
  • the upper end of the sleeve is provided with a plurality of lower water tanks, and the lower water tank is provided with an upper cover plate, and the lower water tank is penetrated from the upper cover plate to the middle of the sleeve.
  • the upper end of the sleeve is provided with four lower water tanks.
  • the lower water tank is uniformly distributed along the circumferential direction of the liquid pool bottom plate.
  • the blade has an elevation angle of 25-30° and a radial angle of 12°-18°.
  • the water spray spray layer comprises a first water spray spray layer and a second water spray spray layer from top to bottom, and the first water spray spray layer is interlaced with the spray pipe of the second water spray spray layer. distributed.
  • the spray nozzle of the second water spray layer is distributed in a cross and is located directly above the swirl gas cap.
  • New washing equipment and packing layer to improve the desulfurization capacity, reduce the generation of aerosol, strengthen the capture and washing of fine aerosols, increase the particle size, and improve the efficiency of aerosol removal.
  • the spray nozzle of the second water spray layer is located directly above the swirl gas cap and coincides with the distribution of the swirl gas cap. After the second water washing spray layer is in full contact with the swirling gas cap, the flue gas generates movement in a plurality of directions in the first water washing spray layer, thereby further increasing the dust removing efficiency.
  • Figure 1 is a schematic view showing the positional structure of the water washing device in the absorption tower of the present invention
  • Figure 2 is a front elevational view showing the structure of the gas cap tray of the present invention.
  • FIG. 3 is a top plan view showing the structure of the gas cap tray of the present invention.
  • Figure 4 is a schematic view showing the structure of the swirling gas cap of the present invention.
  • Figure 5 is a schematic cross-sectional view of the swirling gas cap of the present invention taken along the line A-A in Figure 4;
  • Figure 6 is a top plan view of the water spray layer of the present invention.
  • a high efficiency aerosol removal water scrubber is located inside the absorber tower above the spray layer.
  • the absorption tower further comprises a water washing pump and a water washing tank, and comprises, in order of flow direction of the flue gas, a gas cap tray 1, a packing layer 2, a water washing spray layer 3, the air cap tray 1 comprises a chassis 11, and the chassis 11 is absorbed
  • the side plate 41 of the tower 4 is fixed in the absorption tower 4; one side of the chassis 11 is provided with a water return port 12, and the spray washing water collected by the chassis 11 flows through the water return port 12 to the water washing tank 5, and the water washing tank can be Designed as other recovery devices as needed;
  • a plurality of swirling gas caps 13 are disposed above the chassis 11, and the flue gas enters from the bottom to the top of the swirling gas cap 13 and is vented from the upper portion of the swirling gas cap 13 after defogging. ;
  • the filler layer 2 is provided with a support beam as a gas-liquid mass transfer and a gas-liquid rectification, wherein the support beam is provided with a grid plate on which the ceramic filler is laid; the water spray spray layer 3 is provided with a spray pipe and a spray nozzle to which the washing pump 6 is connected, A filter is disposed at a front end of the water washing pump 6, and a regulating valve of the outlet pipe of the water washing pump 6 replenishes the absorption tower 4 for maintaining the liquid level balance of the absorption tower 4.
  • the swirling gas cap 13 is distributed along the central axis of the water return port 12 of the chassis 11 and uniformly distributes the chassis, so that the arrangement can effectively collect the washing liquid and increase the gas-liquid contact surface. Improve dust removal efficiency.
  • the swirling gas cap 13 includes a sleeve 132, a liquid collecting bottom plate 134, a blade 131, a blind plate 133, and a lower water tank 135.
  • the upper end of the blade 131 is connected to the sleeve 132, and the lower end is connected blindly.
  • a plate 133, the blind plate 133 is fixed on the liquid collecting bottom plate 134;
  • the upper end of the sleeve 132 is provided with a plurality of lower water tanks 135, and the lower water tank 135 is provided with an upper cover plate 136, and the lower water tank 135 is provided by
  • the upper cover 136 extends through the middle of the sleeve 132.
  • the entire swirling gas cap 13 is uniformly distributed in the tower body of the absorption tower 4, the layout is reasonable, the airflow is uniformly passed, and no bias current is generated.
  • the lower end of the sleeve 132 is provided with four lower water tanks 135.
  • the lower water tank 135 is uniformly distributed along the circumferential direction of the liquid collecting bottom plate 134.
  • the blade 131 has an elevation angle of 25-30° and a radial angle of 12°-18°.
  • the blade forms a thin liquid layer, which forms a rotating and centrifugal effect with the rotating upward airflow, and is sprayed into fine droplets, which are smashed toward the tower wall.
  • the droplets are collected by gravity to the liquid collecting bottom plate 134.
  • the airflow and the absorbing liquid move relative to each other in the tower, and a large surface area water film is formed at the structural part of the swirling tray, thereby greatly improving the absorption.
  • the flue gas passes through the spray layer of the absorption tower 4 of the utility model to remove the aerosol in the flue gas, and the airflow is uniform, and the secondary de-fogging device and the spray layer can be stably and more efficiently washed twice and filtered.
  • the flue gas which is then passed through the gas cap tray 1 is again filtered by the packing and then sprayed again, after which the flue gas enters the dust removing device of the absorption tower 4 and is discharged by the flue gas discharging device.
  • the water spray layer 3 includes a first water spray layer 31 and a second water spray layer 32 from top to bottom, and the first water spray layer 31 and The spray nozzles of the second water spray layer 32 are alternately distributed. Further, the spray nozzle 311 of the second water spray layer 32 is distributed in a cross shape, directly above the swirl gas cap 13, and coincides with the distribution of the swirl gas cap. In this way, after the second water washing spray layer is in sufficient contact with the swirling gas cap, the flue gas generates movement in a plurality of directions in the first water washing spray layer, thereby further increasing the gas-liquid contact area and increasing the dust removing efficiency.
  • Nozzle Spiral cone, bonded. Pressure 0.1MPa, injection angle 120°
  • Air cap ⁇ 800mm, 2205, thickness 3mm, quantity: 44 pieces.
  • Air cap total flow area ratio 46%
  • air cap flue gas flow rate 4m/s

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

Abstract

Un épurateur d'eau pour l'élimination à haut rendement d'aérosol est positionné à l'intérieur d'une tour d'absorption, et comprend les composants suivants agencés séquentiellement dans une direction d'écoulement d'un gaz de combustion: un plateau de capuchon de gaz (1); une couche de rembourrage (2); et une couche de lavage par pulvérisation (3). Le plateau de capuchon de gaz (1) comprend une plaque de base (11) fixée à l'intérieur de la tour d'absorption au moyen d'une plaque latérale de la tour d'absorption. Une entrée d'eau de retour (12) est disposée sur un côté de la plaque de base (11). L'eau pulvérisée pour le lavage est collectée par la plaque de base (11) et s'écoule à travers l'entrée d'eau de retour (12) pour atteindre un dispositif de recyclage. Une pluralité de capuchons de gaz à écoulement tourbillonnant (13) sont disposés au-dessus de la plaque de base (11). Un gaz de combustion s'écoule à travers une partie centrale du capuchon de gaz d'écoulement tourbillonnant (13) de bas en haut, et subit un traitement d'élimination d'aérosol avant d'être évacué d'une partie supérieure du capuchon de gaz.
PCT/CN2017/093400 2016-12-08 2017-07-18 Épurateur d'eau pour l'élimination à haut rendement d'aérosol Ceased WO2018103340A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201621344158.1U CN206343056U (zh) 2016-12-08 2016-12-08 一种高效率脱除气溶胶的水洗装置
CN201621344158.1 2016-12-08

Publications (1)

Publication Number Publication Date
WO2018103340A1 true WO2018103340A1 (fr) 2018-06-14

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CN (1) CN206343056U (fr)
WO (1) WO2018103340A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108815980A (zh) * 2018-08-17 2018-11-16 东方电气集团东方锅炉股份有限公司 一种喷水直冷式烟气冷凝系统及方法
CN109045978A (zh) * 2018-09-07 2018-12-21 中国恩菲工程技术有限公司 高温型洗涤脱酸系统
CN109173561A (zh) * 2018-11-09 2019-01-11 上海天晓环保工程有限公司 一种风帽式烟气消白塔
CN109663439A (zh) * 2018-08-30 2019-04-23 广东雪迪龙环境科技有限公司 一种熄焦烟气除尘塔
CN110395782A (zh) * 2019-09-03 2019-11-01 吴得意 一种高效去除养猪沼液废水氨氮的脱氨装置
JP2020051373A (ja) * 2018-09-28 2020-04-02 三菱重工コンプレッサ株式会社 タービンステータ、蒸気タービン、及び仕切板
CN111482058A (zh) * 2019-01-28 2020-08-04 中国华电科工集团有限公司 一种脱硫消白的装置
CN112295962A (zh) * 2020-10-13 2021-02-02 胡宝兰 一种密封胶清除设备
CN113368649A (zh) * 2021-07-21 2021-09-10 怀化辰州机械有限责任公司 一种回流式水滤除尘器
CN114522493A (zh) * 2021-12-30 2022-05-24 广州普华环保设备有限公司 一种喷淋净化装置及方法
CN114602314A (zh) * 2022-04-02 2022-06-10 成都达奇环境科技有限公司 喷淋结构、催化法烟气脱硫装置以及脱硫方法
CN115216349A (zh) * 2021-03-31 2022-10-21 中国石油化工股份有限公司 天然气与水多级雾化混合装置及方法和水合物合成装置
CN116236856A (zh) * 2023-02-27 2023-06-09 西安龙净环保科技有限公司 一种烟气处理装置及方法
CN116474530A (zh) * 2022-01-15 2023-07-25 中国石油化工股份有限公司 气液混合构件、烟气中so3脱除系统及烟气脱硫方法
CN116712823A (zh) * 2023-07-31 2023-09-08 中建材环保研究院（江苏）有限公司 一种玻璃熔窑的烟气处理设备
CN117244378A (zh) * 2023-11-17 2023-12-19 保定博天环保科技有限公司 一种负压除尘除臭系统及其控制方法
CN118320553A (zh) * 2024-06-12 2024-07-12 河南顺昇环保设备有限公司 一种水幕式锅炉脱硫除尘装置
CN119607771A (zh) * 2024-12-06 2025-03-14 青岛科技大学 一种固液气分离净化设备及固液气分离净化的方法

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CN108355475A (zh) * 2018-04-28 2018-08-03 广东佳德环保科技有限公司 一种船舶用单塔双区高效脱硫脱硝装置
CN108514799A (zh) * 2018-06-21 2018-09-11 广东佳德环保科技有限公司 一种包含丝网除雾器的脱硫脱硝一体化装置
CN112275085B (zh) * 2020-11-05 2024-10-22 北京清新环境技术股份有限公司 一种安装在脱硫吸收塔内的烟气冷凝收水装置、系统
CN115430277B (zh) * 2022-06-23 2024-06-07 国能国华(北京)电力研究院有限公司 一种减少二氧化碳捕集系统吸收剂逃逸的装置和方法

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CN201669053U (zh) * 2010-05-17 2010-12-15 上海申川环保科技有限公司 设有烟气水洗构件的脱硫装置
CN202538627U (zh) * 2011-12-27 2012-11-21 合肥宁垣工程技术有限责任公司 一种解决脱硫脱硝气溶胶的装置
CN105854479A (zh) * 2016-04-13 2016-08-17 广东佳德环保科技有限公司 一种高效率脱除气溶胶的氨法烟气脱硫装置及方法
CN205598941U (zh) * 2016-04-13 2016-09-28 广东佳德环保科技有限公司 一种氨法烟气脱硫装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001113112A (ja) * 1999-10-18 2001-04-24 Mitsubishi Heavy Ind Ltd 湿式エアロゾル除去装置
CN201669053U (zh) * 2010-05-17 2010-12-15 上海申川环保科技有限公司 设有烟气水洗构件的脱硫装置
CN202538627U (zh) * 2011-12-27 2012-11-21 合肥宁垣工程技术有限责任公司 一种解决脱硫脱硝气溶胶的装置
CN105854479A (zh) * 2016-04-13 2016-08-17 广东佳德环保科技有限公司 一种高效率脱除气溶胶的氨法烟气脱硫装置及方法
CN205598941U (zh) * 2016-04-13 2016-09-28 广东佳德环保科技有限公司 一种氨法烟气脱硫装置

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108815980A (zh) * 2018-08-17 2018-11-16 东方电气集团东方锅炉股份有限公司 一种喷水直冷式烟气冷凝系统及方法
CN108815980B (zh) * 2018-08-17 2023-07-25 东方电气集团东方锅炉股份有限公司 一种喷水直冷式烟气冷凝系统及方法
CN109663439A (zh) * 2018-08-30 2019-04-23 广东雪迪龙环境科技有限公司 一种熄焦烟气除尘塔
CN109045978A (zh) * 2018-09-07 2018-12-21 中国恩菲工程技术有限公司 高温型洗涤脱酸系统
CN109045978B (zh) * 2018-09-07 2024-04-12 中国恩菲工程技术有限公司 高温型洗涤脱酸系统
JP2020051373A (ja) * 2018-09-28 2020-04-02 三菱重工コンプレッサ株式会社 タービンステータ、蒸気タービン、及び仕切板
JP7051656B2 (ja) 2018-09-28 2022-04-11 三菱重工コンプレッサ株式会社 タービンステータ、蒸気タービン、及び仕切板
CN109173561A (zh) * 2018-11-09 2019-01-11 上海天晓环保工程有限公司 一种风帽式烟气消白塔
CN111482058A (zh) * 2019-01-28 2020-08-04 中国华电科工集团有限公司 一种脱硫消白的装置
CN110395782A (zh) * 2019-09-03 2019-11-01 吴得意 一种高效去除养猪沼液废水氨氮的脱氨装置
CN110395782B (zh) * 2019-09-03 2024-03-29 吴得意 一种高效去除养猪沼液废水氨氮的脱氨装置
CN112295962A (zh) * 2020-10-13 2021-02-02 胡宝兰 一种密封胶清除设备
CN115216349A (zh) * 2021-03-31 2022-10-21 中国石油化工股份有限公司 天然气与水多级雾化混合装置及方法和水合物合成装置
CN113368649A (zh) * 2021-07-21 2021-09-10 怀化辰州机械有限责任公司 一种回流式水滤除尘器
CN114522493A (zh) * 2021-12-30 2022-05-24 广州普华环保设备有限公司 一种喷淋净化装置及方法
CN116474530A (zh) * 2022-01-15 2023-07-25 中国石油化工股份有限公司 气液混合构件、烟气中so3脱除系统及烟气脱硫方法
CN114602314A (zh) * 2022-04-02 2022-06-10 成都达奇环境科技有限公司 喷淋结构、催化法烟气脱硫装置以及脱硫方法
CN116236856A (zh) * 2023-02-27 2023-06-09 西安龙净环保科技有限公司 一种烟气处理装置及方法
CN116712823A (zh) * 2023-07-31 2023-09-08 中建材环保研究院（江苏）有限公司 一种玻璃熔窑的烟气处理设备
CN117244378A (zh) * 2023-11-17 2023-12-19 保定博天环保科技有限公司 一种负压除尘除臭系统及其控制方法
CN118320553A (zh) * 2024-06-12 2024-07-12 河南顺昇环保设备有限公司 一种水幕式锅炉脱硫除尘装置
CN119607771A (zh) * 2024-12-06 2025-03-14 青岛科技大学 一种固液气分离净化设备及固液气分离净化的方法

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