CN102974118A - Secondary recovery apparatus for tower top steam - Google Patents
Secondary recovery apparatus for tower top steam Download PDFInfo
- Publication number
- CN102974118A CN102974118A CN2012104344396A CN201210434439A CN102974118A CN 102974118 A CN102974118 A CN 102974118A CN 2012104344396 A CN2012104344396 A CN 2012104344396A CN 201210434439 A CN201210434439 A CN 201210434439A CN 102974118 A CN102974118 A CN 102974118A
- Authority
- CN
- China
- Prior art keywords
- condenser
- acid
- acid tower
- gas
- links
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Abstract
The invention discloses a secondary recovery apparatus for a tower top steam. The secondary recovery apparatus comprises a two-acid tower, a three-acid reboiler, a primary preheater, a one-acid tower reboiler, a primary condenser, a secondary condenser, a condenser collection tank and a reflux tank, wherein the top of the two-acid tower is connected with the primary condenser, the primary preheater, the one-acid tower reboiler and the primary condenser respectively; the primary condenser is connected with the condenser collection tank; the condenser collection tank is connected with the secondary condenser and the reflux tank respectively; the secondary condenser is connected with the reflux tank; the reflux tank is provided with a gas-liquid shunting tank; the tail gas of the gas-liquid shunting tank is connected to the inlet of the primary condenser; and the inlet of the gas-liquid shunting tank is connected with the three-acid tower reboiler, the primary preheater and the one-acid reboiler respectively.
Description
Technical field
The present invention relates to the technology that a kind of overhead vapours reasonable distribution is used, reduced energy consumption, relate in particular to a kind of second-time recycling device of overhead vapours.
Background technology
In the production process of formic acid, the diacid column overhead produces a large amount of rising steam, the processing mode of these steam replaces steam to use for being assigned in other heat exchangers, this processing mode can reduce the use amount of steam, reduce energy resource consumption, but exist at present the drawback on a kind of the use, be exactly that arranging of distribution channels exists defective, present distribution channels is: cat head removes all to be designed with on each heat transmission equipment valve, and do not have valve at the pipeline that removes overhead condenser, the condensate liquid of each heat transmission equipment directly enters in the return tank besides, cause gas-liquid mixed, not only affect the stable of return tank liquid level, intermittent delivery appears in the distribution that has directly affected simultaneously overhead vapours owing to the increase of condensate liquid resistance, and a large amount of overhead vapours is processed by tail gas emptying.The existence of this phenomenon not only makes overhead vapours can not get optimizing and uses, and also the stable operation of two acid towers is brought impact.
Summary of the invention
For solving the shortcoming of prior art existence, the invention provides a kind of second-time recycling device of overhead vapours.
The technical solution used in the present invention is as follows:
A kind of second-time recycling device of overhead vapours, comprise two acid towers, three acid tower reboilers, the one-level preheater, one acid tower reboiler, first-stage condenser, secondary condenser, condenser feeder and return tank, the top of described two acid towers respectively with first-stage condenser, the one-level preheater, one acid tower reboiler links to each other with first-stage condenser, described first-stage condenser links to each other with the condenser feeder, described condenser feeder respectively with secondary condenser, return tank links to each other, described secondary condenser links to each other with return tank again, described return tank is provided with the gas-liquid diversion cans, the isolated tail gas of described gas-liquid diversion cans is connected to the entrance of first-stage condenser, the entrance of gas-liquid diversion cans respectively with three acid tower reboilers, the one-level preheater, one acid tower reboiler links to each other.
The entrance of described three acid tower reboilers, one-level preheater, an acid tower reboiler is respectively equipped with control valve I, control valve II, control valve III.
The pipeline that the top of described two acid towers is connected with first-stage condenser is provided with the control valve IV.
Described knockout drum is of a size of φ 530mm*600mm.
The beneficial effect that the present invention produces: in the present invention, at return tank the gas-liquid diversion cans is set, realized the secondary recovery of the isolated tail gas in return tank the inside, and condensate liquid and steam with the generation of three acid tower reboilers, one-level preheater, an acid tower reboiler, again be transported to return tank, when having realized gas-liquid separation, not only stablized the return tank liquid level, reduced the resistance of condensate liquid, and made whole system stable.The pipeline that is connected with first-stage condenser at the top of two acid towers in addition is provided with the control valve IV, and the control valve IV can be adjusted according to tower top pressure, makes the pressure stability of whole system, and then has guaranteed Systems balanth.
Description of drawings
Fig. 1 structural representation of the present invention;
1. 2 acid towers among the figure, 2. first-stage condenser, 3. secondary condenser, 4. condenser feeder, 5. return tank, 6. gas-liquid diversion cans, 7. control valve IV, 8. pipeline, 9. three acid tower reboilers, 10. one-level preheater, 11. 1 acid tower reboilers, 12. control valve I, 13. control valve II, 14. control valve III.
The specific embodiment
As shown in Figure 1, the present invention includes two acid towers 1, three acid tower reboilers 9, one-level preheater 10, one acid tower reboiler 11, first-stage condenser 2, secondary condenser 3, condenser feeder 4 and return tank 5, the top of two acid towers 1 respectively with first-stage condenser 2, one-level preheater 10, one acid tower reboiler 11 links to each other with first-stage condenser 2, described first-stage condenser 2 links to each other with condenser feeder 4, described condenser feeder 4 respectively with secondary condenser 3, return tank 5 links to each other, described secondary condenser 3 links to each other with return tank 5 again, return tank 5 is provided with gas-liquid diversion cans 6, gas-liquid diversion cans 6 isolated tail gas are connected to the entrance of first-stage condenser 2 by pipeline 8, the entrance of gas-liquid diversion cans 6 respectively with three acid tower reboilers 9, one-level preheater 10, the outlet of one acid tower reboiler 11 links to each other.The entrance of three acid tower reboilers 9, one-level preheater 10, an acid tower reboiler 11 is respectively equipped with control valve I 12, control valve II 13, control valve III 14.The pipeline 8 that the top of two acid towers 1 is connected with first-stage condenser 2 is provided with control valve IV 7.
Claims (4)
1. the second-time recycling device of an overhead vapours, comprise two acid towers, three acid tower reboilers, the one-level preheater, one acid tower reboiler, first-stage condenser, secondary condenser, condenser feeder and return tank, the top of described two acid towers respectively with first-stage condenser, the one-level preheater, one acid tower reboiler links to each other with first-stage condenser, described first-stage condenser links to each other with the condenser feeder, described condenser feeder respectively with secondary condenser, return tank links to each other, described secondary condenser links to each other with return tank again, it is characterized in that: described return tank is provided with the gas-liquid diversion cans, the isolated tail gas of described gas-liquid diversion cans is connected to the entrance of first-stage condenser, the entrance of gas-liquid diversion cans respectively with three acid tower reboilers, the one-level preheater, one acid tower reboiler links to each other.
2. the secondary distribution device of a kind of overhead vapours as claimed in claim 1, it is characterized in that: the entrance of described three acid tower reboilers, one-level preheater, an acid tower reboiler is respectively equipped with control valve I, control valve II, control valve III.
3. the secondary distribution device of a kind of overhead vapours as claimed in claim 1, it is characterized in that: the pipeline that the top of described two acid towers is connected with first-stage condenser is provided with the control valve IV.
4. the secondary distribution device of a kind of overhead vapours as claimed in claim 1, it is characterized in that: described knockout drum is of a size of φ 530mm*600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434439.6A CN102974118B (en) | 2012-11-01 | 2012-11-01 | Secondary recovery apparatus for tower top steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434439.6A CN102974118B (en) | 2012-11-01 | 2012-11-01 | Secondary recovery apparatus for tower top steam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974118A true CN102974118A (en) | 2013-03-20 |
| CN102974118B CN102974118B (en) | 2014-10-08 |
Family
ID=47848638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210434439.6A Active CN102974118B (en) | 2012-11-01 | 2012-11-01 | Secondary recovery apparatus for tower top steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102974118B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB790510A (en) * | 1955-09-01 | 1958-02-12 | Carves Simon Ltd | Improvements relating to the recovery of ammonia from gases |
| US3187064A (en) * | 1962-05-09 | 1965-06-01 | Foster Wheeler Corp | Ethylene recovery system |
| CN1634848A (en) * | 2004-10-19 | 2005-07-06 | 浙江大学 | Process for producing terephthalic acid and device therefor |
| CN101874934A (en) * | 2010-07-05 | 2010-11-03 | 天津大学 | Flash evaporation feed type internal heat integration energy-saving rectifying device and method |
| CN202961940U (en) * | 2012-11-01 | 2013-06-05 | 聊城煤杉新材料科技有限公司 | Secondary recovery device of steam at top of tower |
-
2012
- 2012-11-01 CN CN201210434439.6A patent/CN102974118B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB790510A (en) * | 1955-09-01 | 1958-02-12 | Carves Simon Ltd | Improvements relating to the recovery of ammonia from gases |
| US3187064A (en) * | 1962-05-09 | 1965-06-01 | Foster Wheeler Corp | Ethylene recovery system |
| CN1634848A (en) * | 2004-10-19 | 2005-07-06 | 浙江大学 | Process for producing terephthalic acid and device therefor |
| CN101874934A (en) * | 2010-07-05 | 2010-11-03 | 天津大学 | Flash evaporation feed type internal heat integration energy-saving rectifying device and method |
| CN202961940U (en) * | 2012-11-01 | 2013-06-05 | 聊城煤杉新材料科技有限公司 | Secondary recovery device of steam at top of tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102974118B (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203807366U (en) | Energy-saving aqueous solution total-recycling urea production system | |
| CN105085325A (en) | Energy-saving aqueous solution complete cycle urea production system | |
| CN202961940U (en) | Secondary recovery device of steam at top of tower | |
| CN202898080U (en) | Movable condensed water fine treatment resin separation regenerating device | |
| CN102974118B (en) | Secondary recovery apparatus for tower top steam | |
| CN203602531U (en) | N-methyl pyrrolidone production device | |
| CN203024122U (en) | Urine washing tower byproduct vapor recovery device | |
| CN202705041U (en) | Industry waste phosphoric acid liquid recovery processing and utilizing device | |
| CN206008082U (en) | Reclaim the device of methyl alcohol and raising hydrocarbonylation thing combustion heat value in hydrocarbonylation thing | |
| CN101544380B (en) | System for producing strong ammonia water by absorbing ammonia in air | |
| CN204865040U (en) | One step of rectifier unit of N - toluidine | |
| CN104016833B (en) | The processing method of the integrated rectifying ethanol of three tower heat | |
| CN203389350U (en) | Novel vaporization system | |
| CN203781857U (en) | Caustic soda evaporation process vacuum system | |
| CN203095986U (en) | Oil slurry heat reutilization system of catalytic fractionating tower | |
| CN202440447U (en) | Trimethylolpropane rectifying system | |
| CN203220771U (en) | Rectifying tower solid impurity discharge system | |
| CN205205054U (en) | Refined system of liquefied gas of reboiler in middle of using | |
| CN203355324U (en) | Flash drum device | |
| CN204710291U (en) | A kind of liquid distributor | |
| CN203037122U (en) | Parallel type heat exchanger component | |
| CN202185165U (en) | Multiple-effect circulation organic solvent recovery concentrator | |
| CN203474699U (en) | Rectification type esterification reaction system for polycarboxylate water reducer | |
| CN202356093U (en) | Waste heat recovery device for etherification tank | |
| CN208964834U (en) | Epoxy takes off low tower and goes light component system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiao Yanbin Inventor after: Zheng Hui Inventor after: Li Mingxia Inventor after: Zhou Maiyou Inventor after: Wu Mingjun Inventor after: Feng Changxin Inventor after: Zhao Xianye Inventor after: Wang Tong Inventor after: Liu Lei Inventor before: Zhang Jincheng Inventor before: Zheng Hui Inventor before: Li Mingxia Inventor before: Zhou Maiyou Inventor before: Wu Mingjun Inventor before: Feng Changxin Inventor before: Zhao Xianye Inventor before: Wang Tong Inventor before: Liu Lei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG JINCHENG ZHENG HUI LI MINGXIA ZHOU MAIYOU WU MINGJUN FENG CHANGXIN ZHAO XIANYE WANG TONG LIU LEI TO: JIAO YANBIN ZHENG HUI LI MINGXIA ZHOU MAIYOU WU MINGJUN FENG CHANGXIN ZHAO XIANYE WANG TONG LIU LEI |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 252000 Luxi group residence in Liaocheng chemical industry park, Shandong Province Patentee after: Liaocheng Luxi formic acid Chemical Co., Ltd Address before: 252000 Shandong Province, Liaocheng City Development Zone, Gu Guan Tun Town resident Patentee before: Liaocheng Meishan New Material Science & Technology Co., Ltd. |