CN203393061U - Polymerization inhibitor adding system - Google Patents
Polymerization inhibitor adding system Download PDFInfo
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- CN203393061U CN203393061U CN201320497541.0U CN201320497541U CN203393061U CN 203393061 U CN203393061 U CN 203393061U CN 201320497541 U CN201320497541 U CN 201320497541U CN 203393061 U CN203393061 U CN 203393061U
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- polymerization inhibitor
- stopper
- pump
- circulating
- inlet
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Abstract
The utility model provides a polymerization inhibitor adding system. The adding system comprises a polymerization inhibitor adding inlet, a steam condensate inlet, a polymerization inhibitor buffer tank, a polymerization inhibitor circulating outlet, a polymerization inhibitor circulating inlet, a circulating pump and a feed metering pump, wherein the polymerization inhibitor adding inlet and the steam condensate inlet are respectively connected with the polymerization inhibitor buffer tank; the polymerization inhibitor circulating outlet and the polymerization inhibitor circulating inlet are connected by a pipeline through the circulating pump; the feed metering pump is arranged between the polymerization inhibitor circulating outlet and the circulating pump; the feed metering pump is connected with a heavy component removing tower top, a light component removing tower top and a butadiene production line respectively through pipelines and valves. By virtue of the polymerization inhibitor adding system, the overhauling frequencies of a filter, a heat exchanger and towers on a production system are reduced, so that the online operation cycles of devices are prolonged, meanwhile by virtue of a nozzle and a dispersion supporter introduction hole at/in a polymerization inhibitor injection part, the dispersion of a polymerization inhibitor can be further enhanced, and consequently gaseous polymerization is effectively reduced.
Description
Technical field
The utility model relates to a kind of stopper add-on system, particularly the stopper add-on system in a kind of production technique of acetonitrile method production 1,3-butadiene.
Background technology
Divinyl is a kind of important petrochemical complex basic organic material, the industrial main extraction fractional distillation separation of butadiene of using, common solvent is acetonitrile, dimethyl formamide and N-Methyl pyrrolidone, and wherein acetonitrile is applied on the many covering devices of China as separated from solvent Butadiene Extraction Process.Acetonitrile method is that to take the acetonitrile of moisture 5%～1O% be solvent, with the method separation of butadiene of extracting rectifying.Yet in butadiene extraction unit, because divinyl contains unsaturated link(age) and has high activity, diene relative concentration compare Gao place, be easy to cause tower tray and reboiler fouling by radical chain reaction polymerization, the polymkeric substance generating affects heat exchanger heat transfer on interchanger as being deposited on, as be deposited on the separating effect that can affect tower in tower body, when serious, will cause tower body to stop up, device parking maintenance.Therefore, need in system, inject micro-stopper and stop up with minimizing equipment, the life cycle of extension fixture, and the polymerization inhibition effect of existing stopper add-on system is not fine.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of stopper add-on system, has solved the bad problem of polymerization inhibition effect that existing stopper add-on system brings, and has effectively extended the on-line operation cycle of production equipment.
The utility model solves the technical scheme that its technical problem adopts: a kind of stopper add-on system, comprise that stopper adds entrance, steam condensate entrance, stopper surge tank, stopper loop exit, stopper loop head, recycle pump, charging volume pump, described stopper adds entrance, steam condensate entrance is connected with described stopper surge tank respectively, between described stopper loop exit and stopper loop head, by pipeline, through recycle pump, be connected, described charging volume pump is arranged between stopper loop exit and recycle pump, charging volume pump by pipeline and valve respectively with weight-removing column tower top, lightness-removing column tower top, product butadiene line is connected.
It is two that sunrise is stated charging volume pump, and is arranged in parallel between stopper loop exit and recycle pump.
Described weight-removing column tower top, lightness-removing column tower top position are provided with nozzle and dispersible carrier intake, with this, increase the dispersion of stopper.
Positively effect of the present utility model: the utility model can effectively reduce the repair rate of strainer in production system, interchanger and tower, thereby extended the on-line operation cycle of device, at place, stopper tower top injection phase, nozzle and dispersible carrier intake are set simultaneously, can further increase the dispersion of stopper, effectively reduce vapour phase polymerization.Adopt the utility model, whole production system operates steadily, and extends (can extend cycle 4-6 doubly) switching time of lightness-removing column still liquid pump and weight-removing column still liquid pump, and the polymkeric substance producing in system also obviously reduces.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of stopper add-on system of the utility model.
In figure: 1. entrance, 2. steam condensate entrance, 3. stopper surge tank, 4. stopper loop exit, 5. stopper loop head, 6. recycle pump, 7. charging volume pump, 8. weight-removing column tower top, 9. lightness-removing column tower top, 10. product butadiene line are added in poly-agent.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is elaborated.
With reference to Fig. 1, the utility model preferred embodiment provides a kind of stopper add-on system, comprise that stopper adds entrance 1, steam condensate entrance 2, stopper surge tank 3, stopper loop exit 4, stopper loop head 5, recycle pump 6, charging volume pump 7, described stopper adds entrance 1, steam condensate entrance 2 is connected with described stopper surge tank 3 respectively, 5 of described stopper loop exit 4 and stopper loop heads are connected through recycle pump 6 by pipeline, described charging volume pump 7 is arranged between stopper loop exit 4 and recycle pump 6, charging volume pump 7 by pipeline and valve respectively with weight-removing column tower top 8, lightness-removing column tower top 9, product butadiene line 10 is connected.
It is two that sunrise is stated charging volume pump 7, and is arranged in parallel between stopper loop exit 4 and recycle pump 6.
Described weight-removing column tower top 8, lightness-removing column tower top 9 positions are provided with nozzle and dispersible carrier intake, with this, increase the dispersion of stopper.
Stopper is transported to stopper through tank car to be added entrance and injects stopper surge tank, in charging volume pump injects respectively lightness-removing column top, weight-removing column top and product butadiene line.In order to improve polymerization inhibition effect, tower top injection phase adopts tuyere arrangement and introduces dispersible carrier, increases the dispersion of stopper, effectively reduces vapour phase polymerization.After the utility model that employing the present embodiment provides, product purification system operates steadily, and extends (can extend cycle 4-6 doubly) switching time of lightness-removing column still liquid pump and weight-removing column still liquid pump, and the polymkeric substance producing in system is obviously minimizing also.
Above-described is only preferred embodiment of the present utility model; institute is understood that; the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; and be not used in and limit protection domain of the present utility model; all any modifications that sunrise is made within thought of the present utility model and principle, be equal to replacement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a stopper add-on system, comprise that stopper adds entrance (1), steam condensate entrance (2), stopper surge tank (3), it is characterized in that: also comprise stopper loop exit (4), stopper loop head (5), recycle pump (6), charging volume pump (7), described stopper adds entrance (10), steam condensate entrance (2) is connected with described stopper surge tank (3) respectively, between described stopper loop exit (4) and stopper loop head (5), by pipeline, through recycle pump (6), be connected, described charging volume pump (7) is arranged between stopper loop exit (4) and recycle pump (6), charging volume pump (7) by pipeline and valve respectively with weight-removing column tower top (8), lightness-removing column tower top (9), product butadiene line (10) is connected.
2. a kind of stopper add-on system according to claim 1, is characterized in that: described charging volume pump (7) is two, and is arranged in parallel between stopper loop exit (4) and recycle pump (6).
3. a kind of stopper add-on system according to claim 1 and 2, is characterized in that: described weight-removing column tower top (8), lightness-removing column tower top (9) position are provided with nozzle and dispersible carrier intake, with this, increase the dispersion of stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497541.0U CN203393061U (en) | 2013-08-15 | 2013-08-15 | Polymerization inhibitor adding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497541.0U CN203393061U (en) | 2013-08-15 | 2013-08-15 | Polymerization inhibitor adding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203393061U true CN203393061U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320497541.0U Expired - Lifetime CN203393061U (en) | 2013-08-15 | 2013-08-15 | Polymerization inhibitor adding system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203393061U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948240A (en) * | 2018-06-11 | 2018-12-07 | 新疆天业（集团）有限公司 | A kind of PVC polymerization anti-polymerization method |
| CN110372486A (en) * | 2019-08-16 | 2019-10-25 | 中国科学院过程工程研究所 | A kind of polymerization inhibitor adding set inhibiting canal polymerization reaction |
| CN110563541A (en) * | 2019-09-05 | 2019-12-13 | 北方华锦化学工业股份有限公司 | Method for reducing solvent autopolymer of butadiene device |
| CN113457571A (en) * | 2020-03-30 | 2021-10-01 | 中石油吉林化工工程有限公司 | Polymerization inhibitor mechanism for MMA (methyl methacrylate) production device and polymerization inhibitor adding method |
| CN115505055A (en) * | 2021-06-07 | 2022-12-23 | 中韩(武汉)石油化工有限公司 | Method for reducing black polymer in carbon nine product |
-
2013
- 2013-08-15 CN CN201320497541.0U patent/CN203393061U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948240A (en) * | 2018-06-11 | 2018-12-07 | 新疆天业（集团）有限公司 | A kind of PVC polymerization anti-polymerization method |
| CN110372486A (en) * | 2019-08-16 | 2019-10-25 | 中国科学院过程工程研究所 | A kind of polymerization inhibitor adding set inhibiting canal polymerization reaction |
| CN110563541A (en) * | 2019-09-05 | 2019-12-13 | 北方华锦化学工业股份有限公司 | Method for reducing solvent autopolymer of butadiene device |
| CN113457571A (en) * | 2020-03-30 | 2021-10-01 | 中石油吉林化工工程有限公司 | Polymerization inhibitor mechanism for MMA (methyl methacrylate) production device and polymerization inhibitor adding method |
| CN115505055A (en) * | 2021-06-07 | 2022-12-23 | 中韩(武汉)石油化工有限公司 | Method for reducing black polymer in carbon nine product |
| CN115505055B (en) * | 2021-06-07 | 2024-03-19 | 中韩(武汉)石油化工有限公司 | Method for reducing black polymer generation in carbon nine product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102500 No. 15 Yanshan Yandong Road, Fangshan District, Beijing Patentee after: BEIJING YANSHAN YULONG PETROCHEMICAL ENGINEERING Co.,Ltd. Address before: 102500 No. 15 Yanshan Yandong Road, Fangshan District, Beijing Patentee before: BEIJING YANSHAN YULONG PEC CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |