CN102746499B - Polycondensation kettle for falling film outside vertical tube - Google Patents
Polycondensation kettle for falling film outside vertical tube Download PDFInfo
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- CN102746499B CN102746499B CN 201210263085 CN201210263085A CN102746499B CN 102746499 B CN102746499 B CN 102746499B CN 201210263085 CN201210263085 CN 201210263085 CN 201210263085 A CN201210263085 A CN 201210263085A CN 102746499 B CN102746499 B CN 102746499B
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- tubulation
- falling film
- heating medium
- polymerization reactor
- condensation polymerization
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- 239000011552 falling film Substances 0.000 title claims abstract description 11
- 238000006068 polycondensation reaction Methods 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000010408 film Substances 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims description 9
- 238000012643 polycondensation polymerization Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Polyesters Or Polycarbonates (AREA)
Abstract
The invention relates to a polycondensation kettle for a falling film outside a vertical tube. The kettle comprises a vertical casing (13); a head and a cone (7) are connected to the upper end and the lower end of the vertical casing (13) respectively; a feed inlet (1) and a heating medium inlet (19) are arranged at the top of the head; a discharge port (6) is arranged at the bottom of the cone (7); a vacuum pumping port (3) is arranged on the upper portion of the vertical casing (13); the feed inlet (1) is communicated with a buffer area between a lower tube plate (15) and a middle tube plate (17) through a pipeline; the vertical tube (12) is arranged in the center of the vertical casing (13), connected with the middle tube plate (17), and communicated with a heating medium outlet (2); and an annular gap (14) is reserved between the vertical tube (12) and the lower tube plate (15), and a central tube (11) arranged in the vertical tube (12) is communicated with the heating medium inlet (19). The polycondensation kettle has the advantages that the film formation of the materials is even, the reaction efficiency can be improved, and the kettle can be used for production of highly viscous polymers such as polyethylene terephthalate (PET).
Description
Technical field
The present invention relates to a kind of production unit of PET industry, particularly the visual plant in the high viscosity polyester reaction.
Background technology
In existing production of polyester, carrying out along with polycondensation, it is large that the viscosity of material becomes gradually, high-viscosity material can hinder the effusion fast of byproduct of reaction ground, and the carrying out of delayed response need to make material form the film of large surface area under vacuum state, heated simultaneously, like this, by product could be overflowed from material smoothly, and reaction could go on better.The most normally used at present is horizontal disc formula or squirrel-cage rotatable reactor, its structure mainly comprises-Horizontal cylinder shape housing, housing top is provided with vacuum pumping opening, housing bottom is provided with opening for feed and discharge port, and horizontal multi-disc disc rotary agitator or the revolving stirrer of mouse cage shape are housed in housing.This horizontal reactor passes into heating medium in the space of housing external jacket, material enters from opening for feed, mobile to the other end of housing from an end of housing, disk or the mouse cage of rotation take up material and form a large amount of diaphragms, at last by the discharge port separating device, the inwall of housing can heat up or lower the temperature, and byproduct of reaction is overflowed on diaphragm, and is taken away from vacuum pumping opening by vacuum pump.Its weak point is: when material viscosity was very large, the material on housing, disk or mouse cage was unable to come down, and the time one is long, material degraded, flavescence, and the quality product degradation is until can't produce.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of shell and tube extratubal falling film polycondensation reactor, the problem that in the solution prior art, high sticking material reaction can't carry out.
Technical scheme of the present invention is as follows:
A kind of tubulation extratubal falling film batch condensation polymerization reactor, comprise: upright shell, be connected to end socket and the cone of upright shell top and bottom, the top of end socket is located in opening for feed and heating medium import, discharge port is positioned at the bottom of cone, vacuum pumping opening is located at the top of upright shell, opening for feed by pipeline directly with lower tubesheet and middle tube sheet between the material buffer district communicate; Tubulation is positioned at the center of upright shell, has a tubulation at least, and it is connected with middle tube sheet, and communicates with the heating medium outlet; Leave ring-like gap between tubulation and lower tubesheet, the evenly distributed mill teeth in film forming place in ring-like gap, and the pipe core in it communicates with the heating medium import; The outer chuck that is with of upright shell, the bottom of chuck and top are respectively equipped with the import of external heat medium and external heat media outlet.
Beneficial effect of the present invention
1, material flows out downwards from the circular clearance that tubulation periphery and lower tubesheet leave, material becomes membranaceous downward trickling along the tubulation outside surface, and because material is natural in dirty by gravity, tubulation outer wall film forming is abundant, the problem that can not occur stopping up can be used in the production of the contour adhesive aggregation compound of PET.
2, the evenly distributed mill teeth in film forming place of circular clearance can prevent from apparatus processing or be heated irregularly causing tubulation and ring-like clearance meshing, thereby make the material film forming even.
3, Multi-row-tube is worked simultaneously, greatly increases the material film forming face long-pending, improves reaction efficiency.
Description of drawings:
Fig. 1 structural representation of the present invention.
Embodiment
A kind of tubulation extratubal falling film batch condensation polymerization reactor, comprise: upright shell 13, be connected to end socket and the cone 7 of upright shell 13 top and bottom, the top of end socket is located in opening for feed 1 and heating medium import 19, discharge port 6 is positioned at the bottom of cone 7, and vacuum pumping opening 3 is located at the top of upright shell 13; Opening for feed 1 by pipeline directly with lower tubesheet 15 and middle tube sheet 17 between the material buffer district communicate; Tubulation 12 is positioned at the center of upright shell 13, has a tubulation 12 at least, and it is connected with middle tube sheet 17, and communicates with heating medium outlet 2; Leave ring-like gap 14 between tubulation 12 and lower tubesheet 15, the evenly distributed mill teeth in film forming place in ring-like gap 14; Pipe core 11 in tubulation 12 communicates with heating medium import 19; The outer chuck 5 that is with of upright shell 13, external heat medium import 9 and external heat media outlet 4 lay respectively at bottom and the top of chuck 5.
In use, vacuum pumping opening connects vacuum pump, and thermal medium passes into from pipe core top, upwards enters pipe core and tubulation chuck part to pipe cap place, bottom baffling, then flows out by buffer zone between upper tubesheet and middle tube sheet; The buffer zone of material tube sheet and lower tubesheet from opening for feed enters, then flow out downwards from the circular clearance that tubulation periphery and lower tubesheet leave, material becomes membranaceous downward trickling along the tubulation outside surface, until from the bottom discharge port separating device of vertical retort, carry out heat exchange during material process tubulation and between the heat-transfer medium in tubulation, byproduct of reaction is fully overflowed, and taken away from vacuum pumping opening by vacuum pump, its vacuum pumping opening is in the middle and upper part of vertical response still shell body.For improving the film forming efficiency of device, described tubulation can display multitube, and Multi-row-tube is worked simultaneously, greatly increases the material film forming face long-pending, improves reaction efficiency.
Claims (5)
1. tubulation extratubal falling film batch condensation polymerization reactor, comprise: upright shell (13), be connected to end socket and the cone (7) of upright shell (13) top and bottom, the top of end socket is located in opening for feed (1) and heating medium import (19), discharge port (6) is positioned at the bottom of cone (7), vacuum pumping opening (3) is located at the top of upright shell (13), it is characterized in that: opening for feed (1) by pipeline directly with lower tubesheet (15) and middle tube sheet (17) between the material buffer district communicate; Tubulation (12) is positioned at the center of upright shell (13), and it is connected with middle tube sheet (17), and communicates with heating medium outlet (2); Leave ring-like gap (14) between tubulation (12) and lower tubesheet (15), and the pipe core (11) in it communicates with heating medium import (19).
2. a kind of tubulation extratubal falling film batch condensation polymerization reactor according to claim 1, it is characterized in that: tubulation (12) has one at least.
3. a kind of tubulation extratubal falling film batch condensation polymerization reactor according to claim 1, is characterized in that: the outer chuck (5) that is with of upright shell (13).
4. a kind of tubulation extratubal falling film batch condensation polymerization reactor according to claim 3, it is characterized in that: the bottom of chuck (5) and top are respectively equipped with external heat medium import (9) and external heat media outlet (4).
5. a kind of tubulation extratubal falling film batch condensation polymerization reactor according to claim 1, is characterized in that: the evenly distributed mill teeth in film forming place of ring-like gap (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210263085 CN102746499B (en) | 2012-07-27 | 2012-07-27 | Polycondensation kettle for falling film outside vertical tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210263085 CN102746499B (en) | 2012-07-27 | 2012-07-27 | Polycondensation kettle for falling film outside vertical tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102746499A CN102746499A (en) | 2012-10-24 |
| CN102746499B true CN102746499B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210263085 Active CN102746499B (en) | 2012-07-27 | 2012-07-27 | Polycondensation kettle for falling film outside vertical tube |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319705B (en) * | 2013-06-17 | 2014-06-04 | 浙江理工大学 | Melt polycondensation reaction method, and reactor and falling film tube used for same |
| CN103360587B (en) * | 2013-06-17 | 2014-06-04 | 浙江理工大学 | Melt polycondensation method, special reactor and falling-film elements |
| CN103319728B (en) * | 2013-06-17 | 2014-06-04 | 浙江理工大学 | Melt polycondensation reaction method for preparing high-viscosity molten mass, and special reactor and falling film element used for same |
| CN203400724U (en) * | 2013-06-17 | 2014-01-22 | 浙江理工大学 | Melt poly-condensation reactor |
| CN105536663B (en) * | 2016-01-29 | 2017-09-19 | 扬州惠通化工科技股份有限公司 | It is a kind of vertical without stirring polymer reactor |
| CN106861591B (en) * | 2017-04-01 | 2022-09-23 | 扬州瑞邦化工技术有限公司 | Melt polymerization falling film reactor and method for carrying out melt polymerization |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492127A (en) * | 2011-11-22 | 2012-06-13 | 浙江尤夫高新纤维股份有限公司 | Tube alignment type condensation polymerization reaction kettle |
| CN202322692U (en) * | 2011-11-22 | 2012-07-11 | 浙江尤夫高新纤维股份有限公司 | Tubular polycondensation reaction kettle |
| CN202688243U (en) * | 2012-07-27 | 2013-01-23 | 浙江尤夫高新纤维股份有限公司 | Outside-tube falling film condensation polymerization reaction kettle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6414693A (en) * | 1964-12-17 | 1966-06-20 | ||
| DE3513536C1 (en) * | 1985-04-16 | 1987-01-02 | Rudolf Paul 7000 Stuttgart De Fritsch | |
| DE4013912A1 (en) * | 1990-04-26 | 1991-10-31 | Fischer Karl Ind Gmbh | Reactor for high viscosity melts etc. |
| ES2130526T3 (en) * | 1994-12-30 | 1999-07-01 | Fischer Karl Ind Gmbh | REACTOR DEVICE FOR LOW VISCOUS MEDIA AND HIGHER VISCOSITY MEDIA. |
| DE10063800C1 (en) * | 2000-12-21 | 2002-05-23 | Zentes Unitex Gmbh | Reactor used for partially degassing reaction mixtures, e.g. during the production of plastics, in biotechnology and in the pharmaceutical industry, comprises a heat exchanger arranged within a flow channel within a container |
| CN100387634C (en) * | 2005-08-09 | 2008-05-14 | 严旭明 | A polymerization reaction tower |
| JP5373709B2 (en) * | 2010-06-28 | 2013-12-18 | 株式会社日立製作所 | Polymer synthesis reactor and polymer synthesis apparatus using the same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492127A (en) * | 2011-11-22 | 2012-06-13 | 浙江尤夫高新纤维股份有限公司 | Tube alignment type condensation polymerization reaction kettle |
| CN202322692U (en) * | 2011-11-22 | 2012-07-11 | 浙江尤夫高新纤维股份有限公司 | Tubular polycondensation reaction kettle |
| CN202688243U (en) * | 2012-07-27 | 2013-01-23 | 浙江尤夫高新纤维股份有限公司 | Outside-tube falling film condensation polymerization reaction kettle |
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| CN102746499A (en) | 2012-10-24 |
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