WO2023060965A1 - Composant dans une tour de dévolatilisation - Google Patents

Composant dans une tour de dévolatilisation Download PDF

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Publication number
WO2023060965A1
WO2023060965A1 PCT/CN2022/105898 CN2022105898W WO2023060965A1 WO 2023060965 A1 WO2023060965 A1 WO 2023060965A1 CN 2022105898 W CN2022105898 W CN 2022105898W WO 2023060965 A1 WO2023060965 A1 WO 2023060965A1
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WO
WIPO (PCT)
Prior art keywords
liquid reservoir
devolatilization
tower
flow
devolatilization tower
Prior art date
Application number
PCT/CN2022/105898
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English (en)
Chinese (zh)
Inventor
王雪松
奚桢浩
仇枭逸
黄剑清
赵鸣
张�林
李响
Original Assignee
华东理工大学
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 华东理工大学 filed Critical 华东理工大学
Publication of WO2023060965A1 publication Critical patent/WO2023060965A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping

Definitions

  • the utility model relates to the technical field of a devolatilization tower, in particular to an internal component of a devolatilization tower.
  • Devolatilization is an important link in chemical production, and its task is to transfer volatile substances from liquid phase to gas phase to be discharged from the fluid.
  • a considerable gas-liquid interface is provided by falling film or flowing down the liquid column; when a single-layer falling film is used, since the fluid has been flowing downward, the time of the falling film is uncontrollable, and there is a devolatilization poor performance.
  • multi-layer grid plates are usually used to realize multi-layer falling film to solve the problem of poor devolatilization effect of fluids with short residence time, but there are still some fluids not devolatilized or devolatilized during use In the worst case, the quality of the fluid is not uniform. To ensure the efficiency and quality of the devolatilization, the fluid must be remixed and then devolatilized multiple times, which is costly and inefficient.
  • the purpose of the utility model is to provide an internal component of a devolatilization tower.
  • the technical solution adopted by the utility model is: a kind of internal components of the devolatilization tower, including a liquid reservoir and several flow guides located below the liquid reservoir, the middle part of the liquid reservoir is provided with at least two rows of holes for the fluid to flow out, the deflector includes a deflector screen and several rows of diverters located above the deflector screen, and the deflector is connected to the liquid reservoir through several rod to connect.
  • the liquid reservoir is a symmetrical box with an open upper end, and the box includes a square box or a tapered box.
  • the liquid reservoir is a square box, and two adjacent rows of holes form a fluid outflow area, and a guide member is arranged below each fluid outflow area.
  • the middle part of the diverter is connected with the connecting rod.
  • the connecting rod is in contact with the diverter and/or the connecting rod is inserted into the diverter.
  • a flow channel is provided below each of the holes, and the flow channel is inclined towards the direction of the guide member.
  • the angle formed between the flow pipe and the bottom of the liquid reservoir is 30°-75°; more preferably 30° ° to 60°; most preferably 45° to 60°.
  • both ends of the splitter are connected to the grid.
  • the flow divider, the connecting rod and the guide wire mesh are integrally formed.
  • the principle of use of the internal member is: the fluid flows into the liquid reservoir, mixes and flows from the hole of the liquid reservoir to the flow pipe, because An included angle is formed between the circulation pipe and the bottom of the liquid reservoir, and the fluid flows toward the connecting rod in a direction close to the flow guide, and after the fluid flows from the connecting rod to the flow divider, the fluid is divided by the flow divider.
  • the principle of use of the internal member is: the fluid flows into the liquid reservoir, and since the lower end of the liquid reservoir is narrow, the liquid outlet speed is relatively slow.
  • the fluid can be mixed and then flow out from the lower end of the liquid reservoir to the splitter, the fluid is divided into two branches by the splitter, and the falling film falls on the guide wire mesh to realize mixing in the devolatilization tower before splitting.
  • the present application also claims a devolatilization tower, which includes a tower body, a liquid distributor arranged inside the tower body and several layers of internal components of the devolatilization tower as described above.
  • the fluid is first mixed and then diverted to the falling film on the flow guide wire mesh through the flow divider, which can realize flow separation and mixing inside the devolatilization tower to ensure the flow of the fluid Devolatilization quality, improve devolatilization efficiency;
  • the utility model can realize multiple mixing and splitting of fluids in the devolatilization tower, so as to ensure that all fluids can be devolatilized and improve the quality of devolatilization;
  • the utility model is simple in structure and convenient in use, and meets the needs of production and use.
  • Fig. 2 is an enlarged schematic diagram of part A in Fig. 1 of the present utility model.
  • Fig. 3 is a schematic diagram of the overall structure of the second embodiment of the utility model.
  • liquid storage device 2. flow guiding member; 3. hole; 4. flow guiding wire mesh; 5. diverter; 6. connecting rod; 7. circulation pipe;
  • a devolatilization tower internal component includes a liquid reservoir 1 and a flow guide 2 located below the liquid reservoir, and the middle part of the liquid reservoir is provided with two rows for fluid Outflow holes 3, the flow guide includes a flow guide wire mesh 4 and several rows of diverters 5 located above the flow guide wire mesh, and the connection between the flow guide member and the liquid reservoir is carried out through several connecting rods 6 connect.
  • liquid reservoir is a symmetrical box with an open upper end.
  • two adjacent rows of the holes form a fluid outflow area, and a flow guide is provided below each of the fluid outflow areas.
  • the liquid reservoir is a square box
  • the flow guide is connected to the axis of the liquid reservoir
  • the liquid reservoir is provided with two rows of holes arranged in parallel, and the holes in the two rows are uniform distributed on both sides of the axis.
  • the diverters are connected to the connecting rods, and the number of the diverters in each row is the same as the number of the connecting rods; the number of the holes in each row is the same as the number of the connecting rods.
  • the middle part of the diverter is connected with the connecting rod.
  • the connecting rod is in contact with the diverter and/or the connecting rod is inserted into the diverter.
  • a circulation channel 7 is arranged below each of the holes, and the communication channel is inclined toward the direction of the flow guide.
  • the angle formed between the flow pipe and the bottom of the liquid reservoir is 60°.
  • the splitter is used to divide the fluid flowing out of the reservoir into two branches, and the splitter includes an arc or a triangle.
  • the diversion wire mesh includes several columns of grids 8, the number of columns of the grids is the same as the number of the diverters in each row, and the distance between the two ends of the diverters is the same as that of the mesh. grid width is the same.
  • both ends of the splitter are connected to the grid.
  • the diverter, the connecting rod and the guide wire mesh are integrally formed.
  • the principle of use of the internal member is: the fluid flows into the liquid reservoir, mixes and flows from the hole of the liquid reservoir to the flow pipe, because An included angle is formed between the circulation pipe and the bottom of the liquid reservoir, and the fluid flows toward the connecting rod in a direction close to the flow guide, and after the fluid flows from the connecting rod to the flow divider, the fluid is divided by the flow divider.
  • the liquid reservoir is a conical box
  • the liquid reservoir is a hollow structure with both upper and lower ends open, and the width of the upper end of the liquid reservoir is greater than the width of the lower end.
  • the principle of use of the internal member is: the fluid flows into the liquid reservoir, and since the lower end of the liquid reservoir is narrow, the liquid outlet speed is relatively slow.
  • the fluid can be mixed and then flow out from the lower end of the liquid reservoir to the splitter, the fluid is divided into two branches by the splitter, and the falling film falls on the guide wire mesh to realize mixing in the devolatilization tower before splitting.
  • This embodiment relates to the protection of a devolatilization tower, including a tower body, a liquid distributor arranged inside the tower body and several layers of internal components of the devolatilization tower as described in Embodiment 1 or Embodiment 2.
  • the tower body is cylindrical, square or rectangular;

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

L'invention concerne un composant dans une tour de dévolatilisation. Le composant dans une tour de dévolatilisation comprend un dispositif de stockage de liquide (1) et une pluralité d'éléments de guidage d'écoulement (2), qui sont situés sous le dispositif de stockage de liquide (1), au moins deux rangées de trous (3) pour l'écoulement de fluide étant formées au milieu du dispositif de stockage de liquide (1), les éléments de guidage d'écoulement (2) comprenant un treillis métallique de guidage d'écoulement (4) et une pluralité de rangées de séparateurs d'écoulement (5), qui sont situés au-dessus du treillis métallique de guidage d'écoulement (4), et les éléments de guidage d'écoulement (2) étant reliés au dispositif de stockage de liquide (1) au moyen d'une pluralité de tiges de liaison (6). Dans le composant dans la tour de dévolatilisation, les éléments de guidage d'écoulement (2) correspondent au dispositif de stockage de liquide (1), de sorte qu'un fluide soit d'abord mélangé puis mis en dérivation sur le treillis métallique de guidage d'écoulement (4) au moyen des séparateurs d'écoulement (5) devant être soumis à un film tombant. La distribution et le mélange d'écoulement peuvent être réalisés dans la tour de dévolatilisation, de façon à assurer la qualité de dévolatilisation du fluide et améliorer l'efficacité de dévolatilisation.
PCT/CN2022/105898 2021-10-13 2022-07-15 Composant dans une tour de dévolatilisation WO2023060965A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202122456892.4U CN215916487U (zh) 2021-10-13 2021-10-13 一种脱挥塔内构件
CN202122456892.4 2021-10-13

Publications (1)

Publication Number Publication Date
WO2023060965A1 true WO2023060965A1 (fr) 2023-04-20

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PCT/CN2022/105898 WO2023060965A1 (fr) 2021-10-13 2022-07-15 Composant dans une tour de dévolatilisation

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CN (1) CN215916487U (fr)
WO (1) WO2023060965A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215916487U (zh) * 2021-10-13 2022-03-01 华东理工大学 一种脱挥塔内构件
CN114870439B (zh) * 2022-06-07 2024-03-08 华东理工大学 一种仿生结构降膜脱挥塔内构件及脱挥塔

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1008357A (en) * 1973-01-09 1977-04-12 Monsanto Company Falling strand devolatilizer using one preheater with two flash chambers
CN1541742A (zh) * 2003-11-06 2004-11-03 一种栅缝降膜脱挥塔
CN2741640Y (zh) * 2004-11-11 2005-11-23 河北科技大学 一种降膜塔布液器
US20080255338A1 (en) * 2007-04-16 2008-10-16 Tai-Kang Liu Method of batch falling strand devolatilizer
CN112320760A (zh) * 2020-10-31 2021-02-05 滨州易龙化工有限公司 一种海水卤水提取溴素的卤水分布器
CN113304709A (zh) * 2021-06-22 2021-08-27 万华化学(四川)有限公司 一种脱挥装置及san树脂脱挥工艺
CN215916487U (zh) * 2021-10-13 2022-03-01 华东理工大学 一种脱挥塔内构件

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1008357A (en) * 1973-01-09 1977-04-12 Monsanto Company Falling strand devolatilizer using one preheater with two flash chambers
CN1541742A (zh) * 2003-11-06 2004-11-03 一种栅缝降膜脱挥塔
CN2741640Y (zh) * 2004-11-11 2005-11-23 河北科技大学 一种降膜塔布液器
US20080255338A1 (en) * 2007-04-16 2008-10-16 Tai-Kang Liu Method of batch falling strand devolatilizer
CN112320760A (zh) * 2020-10-31 2021-02-05 滨州易龙化工有限公司 一种海水卤水提取溴素的卤水分布器
CN113304709A (zh) * 2021-06-22 2021-08-27 万华化学(四川)有限公司 一种脱挥装置及san树脂脱挥工艺
CN215916487U (zh) * 2021-10-13 2022-03-01 华东理工大学 一种脱挥塔内构件

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