CN102078700A - Negative pressure distillation tower - Google Patents
Negative pressure distillation tower Download PDFInfo
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- CN102078700A CN102078700A CN2009102272279A CN200910227227A CN102078700A CN 102078700 A CN102078700 A CN 102078700A CN 2009102272279 A CN2009102272279 A CN 2009102272279A CN 200910227227 A CN200910227227 A CN 200910227227A CN 102078700 A CN102078700 A CN 102078700A
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- pipe
- tower
- extraction
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- distillation tower
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Abstract
The invention discloses a negative pressure distillation tower, comprising a closed circuit circulating device consisting of a tower bottom kettle (1), a liquid phase pipe (2), a reboiler (3) and a gas phase pipe (4) and also comprising a tower bottom collecting device; the tower bottom collecting device comprises a circulating system consisting of a collecting pipe I (5), a circulating pump I (6) and a reflowing pipe (7); the feeding opening of the collecting pipe I (5) is connected with the liquid phase pipe (2), and the material discharging opening of the reflowing pipe (7) is connected with the liquid phase pipe (2); and the material discharging opening of the collecting pipe I (5) is connected with the feeding opening of the reflowing pipe (7) through the circulating pump I (6). The invention has the following advantages: the tower bottom liquid is collected under the state of having great flow rate and forced circulation so as to guarantee the stability, controllability and smoothness of the output amount and realize continuous, automatic and stable collection; and the tower bottom collection operation of the negative pressure distillation tower can be normally operated.
Description
Technical field
The present invention relates to a kind of destilling tower, be specifically related to a kind of vacuum distillation tower.
Background technology
Extraction at the bottom of the continous way vacuum distillation Tata, the method that adopts usually is directly to extract material continuously out at the bottom of tower with centrifugal pump at present, to keep the stability of tower bottoms position.But owing to produced quantity at the bottom of the tower is generally less, the flow of drawing pump is little, causes instability of flow on the one hand, and restive flow is difficult to metering.For the material of easy crystallization,, be easy to blocking pipe because flow is little.On the other hand, when the maximum allowable suct lift of drawing pump is weaker than vacuum in the tower still, often cause still liquid can not adopt, the extraction cutout, resorption even, uncontrollable ordinary production state can't carry out ordinary production.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of vacuum distillation tower, makes liquid extraction under big forces traffic recurrent state at the bottom of the tower.
Technical scheme of the present invention is: a kind of vacuum distillation tower, comprise the closed cycle device that still at the bottom of the tower, liquid-phase tube, reboiler, gas phase pipe are formed, also comprise extraction device at the bottom of the tower, the extraction device comprises the circulatory system of being made up of extraction pipe I, circulating pump I, return duct at the bottom of the described tower, the charging aperture of extraction pipe I links to each other with liquid-phase tube, the discharging opening of return duct links to each other with liquid-phase tube, and the discharging opening of extraction pipe I links together by the charging aperture of circulating pump I and return duct.
The charging aperture of described extraction pipe I is deep into the top of liquid-phase tube three-way pipe.
The discharging opening of described return duct is deep into the top of liquid-phase tube three-way pipe.
The extraction device also comprises the extraction pipe II of extraction tower bottoms at the bottom of the described tower, and delivery line II links to each other with circulating pump II.
The extraction device also is provided with tower bottoms position meter, flowmeter and automatic regulating valve at the bottom of the described tower.
Beneficial effect of the present invention is liquid extraction under big forces traffic recurrent state at the bottom of the tower, guaranteed the stability of produced quantity, controllability and smoothness, make the extraction system become liquid closed circuit circulatory system at the bottom of the tower, make final extraction liquid become the sub-fraction of the circulatory system, and be unlikely to the running status of closed cycle is caused too big influence, make every effort to the stability of extraction state, the fluctuation and the resorption phenomenon of extraction at the bottom of the tower have also been avoided, and increased the thermal efficiency of reboiler, realize serialization, automation, the extraction of stabilisation, make the tower of vacuum distillation at the bottom of the extraction operation normally carry out.
Description of drawings
Accompanying drawing is a schematic diagram of the present invention.
The specific embodiment
Embodiment
A kind of vacuum distillation tower, comprise still (1) at the bottom of the tower, liquid-phase tube (2), reboiler (3), the closed cycle device that gas phase pipe (4) is formed, also comprise extraction device at the bottom of the tower, the extraction device comprises by extraction pipe I (5) at the bottom of the tower, circulating pump I (6), the circulatory system that return duct (7) is formed, the extraction pipe II (8) of extraction tower bottoms, tower bottoms position meter (9), flowmeter (10) and automatic regulating valve (12), the charging aperture of extraction pipe I (5) links to each other with liquid-phase tube (2), the discharging opening of return duct (7) links to each other with liquid-phase tube (2), and the discharging opening of extraction pipe I (5) links together with the charging aperture of return duct (7) by circulating pump I (6).The charging aperture of extraction pipe I (5) is deep into the top of liquid-phase tube (2) three-way pipe, and the discharging opening of return duct (7) is deep into the top of liquid-phase tube (2) three-way pipe, and delivery line II (8) links to each other with circulating pump II (11).
The vacuum distillation tower of the foregoing description is in operating process, because extraction pipe (5) has increased length, make its charging aperture be deep into the top of liquid-phase tube (2) three-way pipe, can guarantee that like this liquid in the liquid-phase tube (2) has tower still (1) to flow to reboiler (3), and be unlikely to flow backwards.Return duct (7) has increased length, and its discharging opening is deep into the top of three-way pipe, can promote liquid flowing to reboiler (3) like this.And the final extraction tower bottoms of extraction pipe II (8) arranged.At tower bottoms position meter (9), extraction pipe II (8), flowmeter (10) and automatic regulating valve (12), associating (tandem) control down, realize the extraction of serialization, automation, stabilisation, extraction is operated is normally carried out.
Claims (5)
1. vacuum distillation tower, comprise the closed cycle device that still (1) at the bottom of the tower, liquid-phase tube (2), reboiler (3), gas phase pipe (4) are formed, it is characterized in that: also comprise extraction device at the bottom of the tower, the extraction device comprises the circulatory system of being made up of extraction pipe I (5), circulating pump I (6), return duct (7) at the bottom of the described tower, the charging aperture of extraction pipe I (5) links to each other with liquid-phase tube (2), the discharging opening of return duct (7) links to each other with liquid-phase tube (2), and the discharging opening of extraction pipe I (5) links together with the charging aperture of return duct (7) by circulating pump I (6).
2. vacuum distillation tower according to claim 1 is characterized in that: the charging aperture of described extraction pipe I (5) is deep into the top of liquid-phase tube (2) three-way pipe.
3. vacuum distillation tower according to claim 1 is characterized in that: the discharging opening of described return duct (7) is deep into the top of liquid-phase tube (2) three-way pipe.
4. vacuum distillation tower according to claim 1 is characterized in that: the extraction device also comprises the extraction pipe II (8) of extraction tower bottoms at the bottom of the described tower, and delivery line II (8) links to each other with circulating pump II (11).
5. vacuum distillation tower according to claim 1 is characterized in that: the extraction device also is provided with tower bottoms position meter (9), flowmeter (10) and automatic regulating valve (12) at the bottom of the described tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102272279A CN102078700A (en) | 2009-12-01 | 2009-12-01 | Negative pressure distillation tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102272279A CN102078700A (en) | 2009-12-01 | 2009-12-01 | Negative pressure distillation tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102078700A true CN102078700A (en) | 2011-06-01 |
Family
ID=44085012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102272279A Pending CN102078700A (en) | 2009-12-01 | 2009-12-01 | Negative pressure distillation tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102078700A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260593A (en) * | 2011-07-11 | 2011-11-30 | 云南绿宝香精香料股份有限公司 | Device for extracting iris root oil by virtue of dynamic circulation type steam vacuum distillation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006000787A (en) * | 2004-06-18 | 2006-01-05 | Toshiba Plant Systems & Services Corp | Distillation method and system for polystyrene degraded and produced oil |
| WO2006072463A1 (en) * | 2005-01-07 | 2006-07-13 | Basf Aktiengesellschaft | Method for producing phthalic anhydride that conforms to specifications |
| CN101263216A (en) * | 2005-08-09 | 2008-09-10 | 埃克森美孚研究工程公司 | Absorbent composition containing molecules with a hindered amine and a metal sulfonate, phosphonate or carboxylate structure for acid gas scrubbing process |
-
2009
- 2009-12-01 CN CN2009102272279A patent/CN102078700A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006000787A (en) * | 2004-06-18 | 2006-01-05 | Toshiba Plant Systems & Services Corp | Distillation method and system for polystyrene degraded and produced oil |
| WO2006072463A1 (en) * | 2005-01-07 | 2006-07-13 | Basf Aktiengesellschaft | Method for producing phthalic anhydride that conforms to specifications |
| CN101263216A (en) * | 2005-08-09 | 2008-09-10 | 埃克森美孚研究工程公司 | Absorbent composition containing molecules with a hindered amine and a metal sulfonate, phosphonate or carboxylate structure for acid gas scrubbing process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260593A (en) * | 2011-07-11 | 2011-11-30 | 云南绿宝香精香料股份有限公司 | Device for extracting iris root oil by virtue of dynamic circulation type steam vacuum distillation |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 455141, Henan County, Anyang Province copper Town Court Village Applicant after: Baoshun Technology Co., Ltd. Address before: 455141, Henan County, Anyang Province copper Town Court Village Applicant before: Henan Baoshuo Tar Chemical Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HENAN BAOSHUO TAR CHEMICAL CO., LTD. TO: BAOSHUN TECHNOLOGY CO., LTD. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110601 |