CN110215729B - Plate-type rectifying tower - Google Patents
Plate-type rectifying tower Download PDFInfo
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- CN110215729B CN110215729B CN201810170995.4A CN201810170995A CN110215729B CN 110215729 B CN110215729 B CN 110215729B CN 201810170995 A CN201810170995 A CN 201810170995A CN 110215729 B CN110215729 B CN 110215729B
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- tower
- plate
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- partition plate
- tower body
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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
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
-
- 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
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
A plate-type rectifying tower is composed of tower body with gas outlet, reflux inlet, gas outlet and discharge outlet, tower plates with several layers of said tower plates, first and second feed inlets, first fractionating chamber with hemispherical end cover, gas outlet, reflux inlet communicated with reflux pipeline, perforated sieve plate, first and second grid plates with gap between tower plates, and the first and second baffle plates, the second baffle is provided with a threaded hole, and the tower plate is fixed in the tower body in a staggered manner through the threaded hole, the sealing gasket and the screw.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a plate-type rectifying tower.
Background
In the preparation process of chemical products, a rectifying tower is usually adopted to realize component separation of raw materials, the basic principle is that a liquid mixture is partially vaporized and partially condensed for many times, and the separation purpose is realized by utilizing the characteristics of different volatilization degrees of components in the liquid mixture. It mainly includes filler formula rectifying column and plate rectifying column, and wherein plate rectifying column mainly relies on the column plate to realize the evenly distributed of mixture, is provided with valve opening, spacer etc. on the column plate, can realize the equilibrium and the separation of the vapor phase liquid phase of mixture, but adopts welded mode to weld the column plate at present on the inside wall of rectifying column, and installation, maintenance and the change of column plate are not convenient for to this kind of mounting means. And the rectifying tower in the prior art has lower separation efficiency on the mixture, and the purity of the extracted product is lower.
Disclosure of Invention
The invention provides a plate-type rectifying tower, which is convenient to install, maintain and replace a tower plate and can greatly improve the separation efficiency and the purity of a finished product.
A plate-type rectifying tower comprises a tower body, a tower kettle and a tower base, wherein a gas outlet, a backflow port, a feed inlet and a discharge port are formed in the tower body, and a plurality of layers of tower plates are arranged in the tower body;
gaps among the tower plates are sequentially reduced from top to bottom;
the tower plate is characterized in that the side edges of two ends of the tower plate are oppositely provided with a first baffle and a second baffle, the second baffle is provided with a threaded hole, and the tower plate is fixed on the inner wall of the cylinder body of the tower body through the threaded hole, a sealing gasket and a screw.
The gas-liquid separator is further characterized in that a first pressure gauge port and a first temperature gauge port are arranged on the hemispherical head at two sides of the gas outlet;
a cone is arranged between the first fractionating chamber and the tower body;
a first partition plate is arranged in the tower body below the cone;
a second thermometer hole and the first feeding hole are formed in the wall of the tower body below the first partition plate;
a second partition plate is arranged below the first partition plate, the tower plates are respectively arranged between the first partition plate and the second partition plate and between the second partition plate and the tower kettle, and a third thermometer port and the second feed port are arranged on the wall of the tower body below the second partition plate;
a reboiler outlet connecting port, a second pressure gauge port, a first liquid level meter port, a fourth temperature meter port and a second liquid level meter port are arranged on the cylinder wall of the tower kettle;
two exhaust ports are arranged on the upper cylinder wall of the tower seat and close to the tower kettle;
the bottom end of the tower kettle is respectively communicated with a discharge hole and a reboiler inlet connector through pipelines;
the tower base is also provided with an inspection hole, a grounding plate and a tail lifting lug.
By adopting the structure, mixture raw materials containing different components enter the tower body from the feeding hole along the feeding pipeline, partial mixtures with different boiling points are evaporated and vaporized under the action of heat, and partial light component raw materials rising after vaporization can be uniformly distributed through the second grid plate in the first fractionating chamber and can be further separated through the filler, so that the separation efficiency of the mixtures and the purity of finished products are improved; in the process of vapor-liquid separation of the mixture, light component substances with low boiling points are vaporized and raised, and the concentration of the light component substances at the position closer to the top of the tower is higher, so that the distance between the tower plates is sequentially reduced from top to bottom, the compact arrangement of the tower plates below the tower body can greatly improve the vapor-liquid separation effect and the separation efficiency below the tower plates, and the increase of the distance between the tower plates can greatly improve the circulation speed of the light component substances along with the increase of the concentration of the light component substances above the tower body, thereby greatly improving the working efficiency of the rectifying tower; the tower plates are arranged on the inner wall of the cylinder body of the tower body through screws, and compared with a welding mode, the operation is simpler and faster, so that the installation, the replacement and the maintenance of the tower plates are convenient; when the tower plate and the tower body are installed, the sealing gasket is arranged to greatly improve the sealing property in the tower body, effectively prevent the gas in the tower from leaking outside and ensure the vacuum degree in the tower, thereby further improving the separation efficiency of the rectifying tower;
furthermore, the arrangement of the cone between the first fractionating chamber and the tower body further enhances the sealing property in the rectifying tower, can effectively prevent gas in the tower from leaking outwards, and ensures the vacuum degree in the tower.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic diagram of the K-direction structure of the present invention.
Detailed Description
As shown in fig. 1 and fig. 2, a plate-type rectifying tower comprises a tower body 1, a tower kettle 2 and a tower base 3, wherein the tower body 1 is provided with a gas outlet 4, a reflux port 5 and a feed inlet 6, a discharge port 7, a plurality of layers of tower plates 8 are arranged inside the tower body 1, the feed port 6 comprises a first feed port 61 and a second feed port 62, a cylindrical first fractionating chamber 9 is arranged at the top end of the tower body 1, a cone 10 is arranged between the first fractionating chamber 9 and the tower body 1, a hemispherical seal head is arranged at the top end of the first fractionating chamber 9, a gas outlet 4 is arranged at the top end of the seal head, a backflow port 5 is arranged below the seal head on the cylinder wall of the first fractionating chamber 9, the backflow port 5 is communicated with a backflow pipeline inside the first fractionating chamber 9, a sieve plate 90, a first grid plate 91, a filler 92 and a second grid plate 93 are sequentially arranged below the backflow port 5 inside the first fractionating chamber 9, and a support plate 94 for supporting the second grid plate 93 is arranged below the first fractionating chamber 9; the gaps between the tower plates 8 are sequentially reduced from top to bottom, the side edges of two ends of each tower plate 8 are oppositely provided with a first baffle 81 and a second baffle 82, the second baffle 82 is provided with at least two threaded holes, and the tower plates 8 are fixed on the inner wall of the cylinder body of the tower body 1 through the threaded holes, a sealing gasket and screws;
a first pressure gauge port 11 and a first temperature gauge port 12 are arranged on two sides of a gas outlet 4 on the hemispherical seal head, a first partition plate is arranged inside the tower body below the cone 10, a second temperature gauge port 13 and a first feed port 61 are arranged on the cylinder wall of the tower body below the first partition plate, a second partition plate is arranged below the first partition plate, tower plates 8 are respectively arranged between the first partition plate and the second partition plate and between the second partition plate and the tower kettle 2, a third temperature gauge port 14 and a second feed port 62 are arranged on the cylinder wall of the tower body 1 below the second partition plate, a reboiler outlet connector 15, a second pressure gauge port 16, a first liquid level gauge port 17, a fourth temperature gauge port 18 and a second liquid level gauge port 19 are arranged on the cylinder wall above the tower base 3 and close to the tower kettle 2, two exhaust ports 20 are arranged on the cylinder wall above the tower kettle 2, and the bottom end of the tower kettle 2 is respectively connected with a discharge port 7 and a pipeline 21, The reboiler inlet connection port 22 is communicated, and the tower base 3 is further provided with an inspection hole 23, a grounding plate 24 and a tail lifting lug 25.
The specific working principle is as follows: in the embodiment, the mixture raw material is a liquid raw material, the liquid mixture raw material enters the tower body 1 from the first feed port 61 and then descends layer by layer along the tower plate 8, the steam enters the tower body 1 from the second feed port 62 and then ascends layer by layer along the tower plate, the steam and the liquid mixture raw material are fully contacted on the tower plate 8, the gas-phase liquid-phase equilibrium is achieved on the tower plate 8, the liquid mixture raw material is evaporated under the action of the heat of the steam, part of light component raw material with low boiling point in the liquid mixture raw material is separated, part of light component raw material is separated by ascending layer by layer through the tower plate 8, after being uniformly distributed by the first grid plate 91 in the first fractionating chamber 9, the raw materials are further separated by the filler 92, and finally, part of the light component raw materials which meet the requirements are discharged and recycled through the gas outlet 4, and part of the light component raw materials which do not meet the requirements and have higher boiling points fall into the tower body 1 through the reflux port 5, and the separation process is repeated for further separation; part of heavy component raw materials with higher boiling points enter a reboiler through a reboiler inlet connector 22 to be vaporized, the vaporized light component raw materials return to the rectifying tower through a reboiler outlet connector 15, the separation process is repeated, and further separation of the liquid mixture raw materials is finally realized; the filler 92 in the first fractionating chamber 9 can realize the further separation of the light component raw materials, thereby greatly improving the separation precision and the separation efficiency;
the tower plate 8 in the rectifying tower can be arranged in the tower body 1 through screws in the hoisting process, and compared with a welding mode, the operation is simpler and faster, so that the installation, the replacement and the maintenance of the tower plate 8 are facilitated;
the inspection hole 23 is used for inspecting the internal condition of the rectifying tower, and the arrangement of the tail lifting lug 25 and the grounding plate 24 can facilitate the connection of the rectifying tower and external equipment;
two air outlets 20 above the tower base 3 are used for discharging gas impurities in the tower body 1;
the arrangement of the first pressure gauge port 11, the second pressure gauge port 16, the first temperature gauge port 12, the second temperature gauge port 13, the third temperature gauge port 14, the fourth temperature gauge port 18, the first liquid level gauge port 17 and the second liquid level gauge port 19 can facilitate observation of the temperature, the pressure, the liquid level height and other conditions in the tower body 1, monitoring of the operation condition can be realized, the conditions of the temperature, the pressure, the liquid level height and the like in the tower body 1 can be ensured to meet the separation requirements of the rectifying tower, and therefore the separation efficiency is further improved.
Claims (5)
1. A plate-type rectifying tower comprises a tower body, a tower kettle and a tower base, wherein a gas outlet, a backflow port, a feed inlet and a discharge port are formed in the tower body, and a plurality of layers of tower plates are arranged in the tower body; gaps among the tower plates are sequentially reduced from top to bottom; the side edges of two ends of the tower plate are oppositely provided with a first baffle and a second baffle, the second baffle is provided with a threaded hole, and the tower plate is fixed on the inner wall of the cylinder of the tower body in a staggered manner through the threaded hole, a sealing gasket and a screw;
a cone is arranged between the first fractionating chamber and the tower body; a first partition plate is arranged in the tower body below the cone; a second thermometer hole and the first feeding hole are formed in the wall of the tower body below the first partition plate; and a second partition plate is arranged below the first partition plate, the tower plates are respectively arranged between the first partition plate and the second partition plate and between the second partition plate and the tower kettle, and a third thermometer port and a second feed port are arranged below the second partition plate and on the wall of the tower body.
2. The plate rectifying tower according to claim 1, wherein a first pressure gauge port and a first temperature gauge port are arranged on the hemispherical head at two sides of the gas outlet.
3. The plate-type rectification tower as claimed in claim 1, wherein a reboiler outlet connection port, a second pressure gauge port, a first liquid level gauge port, a fourth temperature gauge port and a second liquid level gauge port are arranged on the wall of the tower kettle.
4. The plate rectifying tower according to claim 1, wherein two exhaust ports are disposed on the upper cylindrical wall of the tower base at a position close to the tower bottom.
5. The plate-type rectifying tower according to claim 1, wherein the bottom end of the tower kettle is respectively communicated with the discharge port and the reboiler inlet connecting port through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170995.4A CN110215729B (en) | 2018-03-01 | 2018-03-01 | Plate-type rectifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170995.4A CN110215729B (en) | 2018-03-01 | 2018-03-01 | Plate-type rectifying tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110215729A CN110215729A (en) | 2019-09-10 |
| CN110215729B true CN110215729B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810170995.4A Active CN110215729B (en) | 2018-03-01 | 2018-03-01 | Plate-type rectifying tower |
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| Country | Link |
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| CN (1) | CN110215729B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559678B (en) * | 2019-10-21 | 2024-02-27 | 无锡赫利邦化工科技有限公司 | Rectifying tower for synthesizing and separating polymethoxy dimethyl ether and application method thereof |
| CN112023432A (en) * | 2020-08-26 | 2020-12-04 | 朱文艳 | Plate type fractionating tower |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3075752A (en) * | 1958-03-18 | 1963-01-29 | Leva Max | Gas-liquid contact tower |
| DE4237358A1 (en) * | 1992-11-05 | 1994-05-11 | Wiederaufarbeitung Von Kernbre | Mass transfer column with variable distance spaced apart trays - for adjustment of droplet size, hold up and turndown |
| CN201271519Y (en) * | 2008-04-23 | 2009-07-15 | 广东纺织职业技术学院 | Building block combined plate column |
| CN202876409U (en) * | 2012-09-29 | 2013-04-17 | 山东金岭化学有限公司 | Combined coarse monomer rectification device |
| CN204601661U (en) * | 2015-05-12 | 2015-09-02 | 中国林业科学研究院林产化学工业研究所 | A kind of stripping vaporising device produced for environment-friendlyplasticizer plasticizer DOTP |
| CN104998433A (en) * | 2015-07-13 | 2015-10-28 | 山东润博生物科技有限公司 | Steam stripping dephenolization device and steam stripping dephenolization method thereby |
| CN106477792A (en) * | 2016-09-26 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of method and device for stripping process petrochemical industry sour water nothing side line single column negative pressure |
| CN206081708U (en) * | 2016-09-26 | 2017-04-12 | 浙江远航绿能环保科技有限公司 | Board -like rectifying column of micropore column plate |
-
2018
- 2018-03-01 CN CN201810170995.4A patent/CN110215729B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3075752A (en) * | 1958-03-18 | 1963-01-29 | Leva Max | Gas-liquid contact tower |
| DE4237358A1 (en) * | 1992-11-05 | 1994-05-11 | Wiederaufarbeitung Von Kernbre | Mass transfer column with variable distance spaced apart trays - for adjustment of droplet size, hold up and turndown |
| CN201271519Y (en) * | 2008-04-23 | 2009-07-15 | 广东纺织职业技术学院 | Building block combined plate column |
| CN202876409U (en) * | 2012-09-29 | 2013-04-17 | 山东金岭化学有限公司 | Combined coarse monomer rectification device |
| CN204601661U (en) * | 2015-05-12 | 2015-09-02 | 中国林业科学研究院林产化学工业研究所 | A kind of stripping vaporising device produced for environment-friendlyplasticizer plasticizer DOTP |
| CN104998433A (en) * | 2015-07-13 | 2015-10-28 | 山东润博生物科技有限公司 | Steam stripping dephenolization device and steam stripping dephenolization method thereby |
| CN106477792A (en) * | 2016-09-26 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of method and device for stripping process petrochemical industry sour water nothing side line single column negative pressure |
| CN206081708U (en) * | 2016-09-26 | 2017-04-12 | 浙江远航绿能环保科技有限公司 | Board -like rectifying column of micropore column plate |
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| CN110215729A (en) | 2019-09-10 |
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