CN104667554A - Multifunction efficient rectifying column - Google Patents
Multifunction efficient rectifying column Download PDFInfo
- Publication number
- CN104667554A CN104667554A CN201510077389.4A CN201510077389A CN104667554A CN 104667554 A CN104667554 A CN 104667554A CN 201510077389 A CN201510077389 A CN 201510077389A CN 104667554 A CN104667554 A CN 104667554A
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- China
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- column
- tower body
- column plate
- layer
- reboiler
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a multifunction efficient rectifying column. The multifunction efficient rectifying column comprises a column body, wherein the top of the column body is connected with a condenser and a backflow tank, and the bottom of the column body is connected with a reboiler; a material inlet of the column body is connected with a preheater; the condenser is communicated with the preheater; the column body is internally provided with column plates and packing layers from top to bottom alternatively; the column plates are provided with downcomers and overflow weirs; packing of the packing layers is supported by a bracket; defoaming grids are installed between the column plates and the packing layers; the uppermost layer and the bottommost layer of the column body are both provided with column plates; the downcomer of the column plate at the bottommost layer is insulated from the bottom of a kettle of the column body so as to form a hole with a sealed end; the hole is connected with the reboiler via a liquid outlet; the material charge part is positioned at the column plate layer at the middle of the column body. According to the invention, heat dissipated by the condenser is fully utilized, and the liquid at the column plate at the bottom layer is not in contact with the backflow liquid of the reboiler, and is directly guided out of the column body, so that the separation efficiency is improved, the alternation of the column plates and the packing layers expands the application range of the rectifying column.
Description
Technical field
The present invention relates to Chemical Equipment Design field, particularly a kind of Multifunctional rectifying column.
Background technology
Rectifying column is the equipment the most often used in Chemical Manufacture, and according to the structure type of gas-liquid contact part in tower, tower can be divided into plate column and packed tower, they are applicable in different Chemical Manufacture respectively.Packed tower is the gas-liquid mass transfer (contact) equipment of continous way, and contact in continuous flow upstream and carry out mass transfer and heat transfer between gas-liquid two-phase, the concentration of gas-liquid two-phase component is consecutive variations along tower height.Successively counter current contacting carry out mass transfer and heat transfer between gas-liquid two-phase in plate column, the concentration of gas-liquid two-phase component is step variation along tower height.Packed tower structure is simple, and Pressure Drop is little, is convenient to process corrosive materials, the material of foam easy to foaming and vacuumizing, but volume is large, weight is large, mass-transfer efficiency is lower, and operational stability is poor, is unsuitable for processing dirty liquid, dusty gas, material containing solid particle and easily fouling.And plate column carries out mass transfer and heat transfer by layering, on every block column plate, gas-liquid two-phase must keep close and contact fully, for mass transport process provides enough large and the phase border contact surface constantly updated, reduce resistance to mass tranfer, make gas-liquid two-phase be counter-current flow tower planted agent, to provide maximum mass transfer power as far as possible.
The core of distillation process is backflow, and the necessary lot of energy of backflow, reduce the key subjects that energy consumption is distillation process development.Along with the development in pluralism of chemical products, simple packed tower or sieve-plate tower can not meet the demand of energy-efficient gas-liquid mass transfer, design pressure drop little, and greatly, energy-efficient, rectifying column applied widely is very important for disposal ability and operating flexibility.
Summary of the invention
For making up the deficiencies in the prior art, the invention provides a kind of multifunctional efficient rectifying column reasonable in design, applied widely.
The present invention is achieved through the following technical solutions:
A kind of multifunctional efficient rectifying column, comprise tower body, described tower body top connects condenser and return tank, bottom connects reboiler, its special character is: described tower body charging aperture is connected with preheater, and condenser is communicated with preheater by valve, and described tower body inside is mounted alternately with column plate and packing layer from top to bottom, column plate is provided with downspout and downflow weir, and the filler of packing layer is by bracket support; Foam removal grid is installed between described column plate and packing layer; The most last layer of described tower body and basecoat all install column plate, and isolate forming blind bore hole, one end at the bottom of the downspout of orlop column plate and tower body still, this hole is connected with reboiler by liquid outlet, and feed entrance point is in the column plate layer in the middle part of tower body.
Multifunctional efficient rectifying column of the present invention, described bracket is separated into square hole lattice by the some orthogonal embeddings of polyfluortetraethylene pipe to form.
Multifunctional efficient rectifying column of the present invention, is at least provided with two blocks of column plates between two packing layers.
The invention has the beneficial effects as follows: condenser liberated heat is as one of the thermal source of feed preheater, make full use of heat, bottom column plate liquid does not contact with reboiler withdrawing fluid and directly derives tower body, improve separative efficiency, column plate and alternately installing of packing layer reduce the large shortcoming of plate column pressure drop on the one hand, also be conducive to vacuumizing simultaneously, Despumation device can play restriction and fragmentation to foam, do not need to install demister in addition, gas-liquid contacts better and carries out mass transfer and conduct heat reaching energy-efficient separating effect in tower.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is structural representations of bracket of the present invention.
In figure, 1 tower body, 2 condensers, 3 return tanks, 4 reboilers, 5 column plates, 6 downspouts, 7 downflow weirs, 8 foam removal grids, 9 packing layers, 10 brackets, 11 preheaters, 12 holes, 13 liquid outlets, 14 polyfluortetraethylene pipes, 15 hole lattice.
Detailed description of the invention
Accompanying drawing is a kind of detailed description of the invention of the present invention.This embodiment comprises tower body 1, described tower body 1 top connects condenser 2 and return tank 3, bottom connects reboiler 4, described tower body 1 charging aperture is connected with preheater 11, condenser 2 is communicated with preheater 11 by valve, described tower body 1 inside is mounted alternately with two blocks of column plates 5 and one deck packing layer 9 from top to bottom, and column plate 5 is provided with downspout 6 and downflow weir 7, and the filler of packing layer 9 is supported by bracket 10; Between described column plate 5 and packing layer 9, foam removal grid 8 is installed; The most last layer of described tower body 1 and basecoat all install column plate 5, the downspout 6 of orlop column plate 5 forms blind bore hole, one end 12 with isolating at the bottom of tower body 1 still, this hole 12 is connected with reboiler 4 by liquid outlet 13, feed entrance point is in the column plate 5 layers in the middle part of tower body 1, described bracket 10 is separated into square hole lattice 15 by the orthogonal embedding of some polyfluortetraethylene pipes 14 to form, the honeycomb cell structure of bracket 10 is intensive, can prevent filler from falling.
Material liquid heats in rear feeding rectifying column by preheater 11, feed entrance point is in the column plate 5 layers in the middle part of tower body 1, ensure that material is from the charging of column plate layer, reduce to bubble, liquid drops down onto packing layer 9 laterally across after each layer column plate 5 from top to bottom under gravity, gas, under pressure reduction promotes, is from bottom to top discharged by tower top through after each layer column plate through the perforate be distributed on column plate 5.The liquid that all contain is certain on every block column plate 5, when gas passes liquid layer on plate, two-phase carries out contact mass transfer.In packing layer 9, liquid disperses to flow down in membranaceous along filling surface automatically.Be provided with liquid re-distributor between each layer filler, liquid is distributed on tower section again, enter descending trays 5.Gas enters from tower bottom, by filler gap free space, walks to tower top.The gas leaving packing layer 9 may be carried under one's arms a small amount of droplet, and droplet can block or destroy by foam removal grid 8.
Tower body 1 top rises steam and adopt complete condenser condensation, a condensate liquid part is back in tower, and remainder delivers to storage tank after reactor product cooler cooling.Arrange reboiler 4 bottom tower body 1 and adopt indirect steam heating, bottom product delivers to storage tank after cooling.For ensureing the material concentration entered in reboiler 4, orlop column plate 5 is not communicated with at the bottom of still, and the liquid namely flowing through orlop column plate 5 can not pass back into the mixing of materials in tower with reboiler 4 thus reduce concentration, directly enters reboiler 4 by liquid outlet 13.Wherein because the principle of still-process repeatedly carries out components vaporize and condensation, thermal efficiency ratio is lower, but overhead condenser 2 liberated heat is a lot, but its energy grade is lower, the thermal source of tower reactor can not be directly used in, the present embodiment as low-temperature heat source generation low-pressure steam as one of thermal source of feed preheater, takes full advantage of energy using its heat.
Claims (3)
1. a multifunctional efficient rectifying column, comprise tower body (1), described tower body (1) top connects condenser (2) and return tank (3), bottom connects reboiler (4), it is characterized in that: described tower body (1) charging aperture is connected with preheater (11), condenser (2) is communicated with preheater (11) by valve, described tower body (1) inside is mounted alternately with column plate (5) and packing layer (9) from top to bottom, column plate (5) is provided with downspout (6) and downflow weir (7), and the filler of packing layer (9) is supported by bracket (10); Foam removal grid (8) is installed between described column plate (5) and packing layer (9); The most last layer of described tower body (1) and basecoat all install column plate (5), the downspout (6) of orlop column plate (5) forms blind bore hole, one end (12) with isolating at the bottom of tower body (1) still, this hole (12) is connected with reboiler (4) by liquid outlet (13), and feed entrance point is in column plate (5) layer at tower body (1) middle part.
2. a kind of Multifunctional rectifying column according to claim 1, is characterized in that: described bracket (10) is separated into square hole lattice (15) by some polyfluortetraethylene pipes (14) orthogonal embedding to form.
3. a kind of Multifunctional rectifying column according to claim 1 and 2, is characterized in that: be at least provided with two pieces of column plates (5) between two packing layers (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077389.4A CN104667554B (en) | 2015-02-13 | 2015-02-13 | A kind of multifunctional efficient rectifying column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077389.4A CN104667554B (en) | 2015-02-13 | 2015-02-13 | A kind of multifunctional efficient rectifying column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104667554A true CN104667554A (en) | 2015-06-03 |
| CN104667554B CN104667554B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510077389.4A Expired - Fee Related CN104667554B (en) | 2015-02-13 | 2015-02-13 | A kind of multifunctional efficient rectifying column |
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| CN (1) | CN104667554B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390503A (en) * | 2016-11-17 | 2017-02-15 | 晓健科技（大连）有限公司 | Plate type packed distillation tower |
| CN108815874A (en) * | 2018-08-30 | 2018-11-16 | 安徽顺恒信新材料有限公司 | A kind of rectifying still self-flow device |
| CN114100173A (en) * | 2021-11-03 | 2022-03-01 | 何金翠 | Light component removal rectifying tower |
| CN115253351A (en) * | 2022-08-08 | 2022-11-01 | 湖南科凯瑞材料科技有限公司 | EEP preparation process |
| CN117357921A (en) * | 2023-12-08 | 2024-01-09 | 邢台旭阳煤化工有限公司 | Refining rectifying device for crude phenol |
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| US4681661A (en) * | 1983-10-14 | 1987-07-21 | Rakesh Govind | Dual distillation columns |
| CN2643968Y (en) * | 2003-09-17 | 2004-09-29 | 中国成达工程公司 | Combined carbinol rectifying tower |
| CN201737918U (en) * | 2010-06-24 | 2011-02-09 | 辽宁留德润滑油有限公司 | Vacuum distillation tower |
| CN102146018A (en) * | 2011-01-31 | 2011-08-10 | 天津大学 | Method and device for rectification deacidification through catalysis reaction in the ethanol production process |
| CN102167412A (en) * | 2011-04-08 | 2011-08-31 | 吉林化工学院化工分离技术开发中心 | High-efficiency composite urea waste liquid deep hydrolysis desorption tower |
| CN102600630A (en) * | 2012-03-23 | 2012-07-25 | 宜兴汉光高新石化有限公司 | Despumating rectifying tower |
| CN104289006A (en) * | 2014-11-01 | 2015-01-21 | 西安市尚华科技开发有限责任公司 | Bundling rectification device with lateral line reactors |
-
2015
- 2015-02-13 CN CN201510077389.4A patent/CN104667554B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4681661A (en) * | 1983-10-14 | 1987-07-21 | Rakesh Govind | Dual distillation columns |
| CN2643968Y (en) * | 2003-09-17 | 2004-09-29 | 中国成达工程公司 | Combined carbinol rectifying tower |
| CN201737918U (en) * | 2010-06-24 | 2011-02-09 | 辽宁留德润滑油有限公司 | Vacuum distillation tower |
| CN102146018A (en) * | 2011-01-31 | 2011-08-10 | 天津大学 | Method and device for rectification deacidification through catalysis reaction in the ethanol production process |
| CN102167412A (en) * | 2011-04-08 | 2011-08-31 | 吉林化工学院化工分离技术开发中心 | High-efficiency composite urea waste liquid deep hydrolysis desorption tower |
| CN102600630A (en) * | 2012-03-23 | 2012-07-25 | 宜兴汉光高新石化有限公司 | Despumating rectifying tower |
| CN104289006A (en) * | 2014-11-01 | 2015-01-21 | 西安市尚华科技开发有限责任公司 | Bundling rectification device with lateral line reactors |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390503A (en) * | 2016-11-17 | 2017-02-15 | 晓健科技（大连）有限公司 | Plate type packed distillation tower |
| CN106390503B (en) * | 2016-11-17 | 2019-02-01 | 泰兴金江化学工业有限公司 | A kind of gasket packing rectifying column |
| CN108815874A (en) * | 2018-08-30 | 2018-11-16 | 安徽顺恒信新材料有限公司 | A kind of rectifying still self-flow device |
| CN114100173A (en) * | 2021-11-03 | 2022-03-01 | 何金翠 | Light component removal rectifying tower |
| CN115253351A (en) * | 2022-08-08 | 2022-11-01 | 湖南科凯瑞材料科技有限公司 | EEP preparation process |
| CN115253351B (en) * | 2022-08-08 | 2023-12-01 | 湖南科凯瑞材料科技有限公司 | EEP preparation process |
| CN117357921A (en) * | 2023-12-08 | 2024-01-09 | 邢台旭阳煤化工有限公司 | Refining rectifying device for crude phenol |
| CN117357921B (en) * | 2023-12-08 | 2024-03-08 | 邢台旭阳煤化工有限公司 | Refining rectifying device for crude phenol |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104667554B (en) | 2016-08-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Chang Inventor before: Liu Qiaoping |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160725 Address after: Licheng District 250000 Shandong city of Ji'nan province Guo Diansan District No. 20 building 2 unit 2 Applicant after: Liu Chang Address before: 250000, room 2, unit 19, Building 102, Huayuan Road 5, Licheng District, Shandong, Ji'nan Applicant before: Jinan Jiao Tai Information Technology Co., Ltd |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20170213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |