SU817028A1 - Method of automatic control of vinyl chloride emulsion polymerization process - Google Patents
Method of automatic control of vinyl chloride emulsion polymerization process Download PDFInfo
- Publication number
- SU817028A1 SU817028A1 SU792786118A SU2786118A SU817028A1 SU 817028 A1 SU817028 A1 SU 817028A1 SU 792786118 A SU792786118 A SU 792786118A SU 2786118 A SU2786118 A SU 2786118A SU 817028 A1 SU817028 A1 SU 817028A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- vinyl chloride
- emulsion polymerization
- conversion
- mixer
- polymerizers
- Prior art date
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Description
1one
Изобретение относитс к автоматизации процессов полимеризации и может быть использовано в производст ,ве винилхлорида.This invention relates to the automation of polymerization processes and can be used in the manufacture of vinyl chloride.
Известен способ автоматического регулировани процесса эмульсионной полимеризации винилхлорида, заключающийс в стабилизации величины конверсии мономеров изменением расхода инициатора l ..There is a method for automatically controlling the process of emulsion polymerization of vinyl chloride, which consists in stabilizing the conversion of monomers by changing the initiator consumption l.
В известном способе ограничены возможности повышени точности стабилизации величины конверсии из-за вли ни на процесс регулировани сравнительно большого времени пребывани реакционной.смеси в полимеризаторах .In the known method, the possibilities of increasing the accuracy of stabilization of the conversion value are limited due to the influence on the process of regulating the relatively long residence time of the reaction mixture in polymerization units.
Цель изобретени - повышение точности стабилизации величины конверсии .The purpose of the invention is to improve the accuracy of stabilization of the conversion value.
Указанна цель достигаетс тем, что в способе автоматического регуг лировани процесса эмульсионной полимеризации винилхлорида., осуществл емого в полимеризаторах со смешением потока со всех полимеризаторов в смесителе , заключающемс в стабилизации . конверси мономеров изменением расхода инициатора, определ ют, сумму величин конверсии мономеровThis goal is achieved by the fact that in the method of automatic regulation of the process of emulsion polymerization of vinyl chloride., Carried out in polymerizers with mixing the flow from all polymerizers in the mixer, consisting in stabilization. the conversion of monomers by changing the flow rate of the initiator, determine the sum of the conversion values
на входе и выходе смесител , при увеличении указанной величины суммы от заданного значени уменьшают расход инициатора в полимеризаторы, а при уменьшении указанной величины суммы От заданного значени увеличивгиот расход инициатора в смеситель.at the input and output of the mixer, with an increase in the specified amount of the sum from the specified value, the flow rate of the initiator into the polymerizers decreases, and with a decrease in the specified value of the sum From the set value, the flow of the initiator to the mixer increases.
На чертеже представлена блок-схема системы регулировани , реализую0 щей предлагаемый способ.The drawing shows a block diagram of the control system that implements the proposed method.
На чертеже показаны полимеризаторы 1,2 и 3, смеситель 4, датчики 5 и 6 конверсии, датчик 7 молекул рной массы, преобразователи 8 и 9, 5 регул тор 10 молекул рной массы,The drawing shows polymerization agents 1, 2 and 3, a mixer 4, conversion sensors 5 and 6, molecular weight sensor 7, converters 8 and 9, 5 molecular weight regulator 10,
функциональный элемент 11, регулирующие клапаны 12, 13, 14,15.functional element 11, control valves 12, 13, 14,15.
Предлагаемый способ осуществл етс следующим образом.The proposed method is carried out as follows.
00
При помощи датчиков 5 и 6 конверсии непрерывно измер ют величины (сонверсий соответственно на линии смешени полимеризаторов 1, 2 и 3 и la выходе из смесител 4. Сигнсшы с Using the sensors 5 and 6 of the conversion, the values are continuously measured (sonversions, respectively, on the mixing line of polymerizers 1, 2 and 3, and la output from the mixer 4. Signals with
5 датчиков 5 и 6 поступают в преобразователи 8 и 9. Преобразованные сигнёшы с преобразователей 8 и 9 поступают в функциональный элемент 11.5 sensors 5 and 6 are fed to converters 8 and 9. The converted signals from converters 8 and 9 are fed to functional element 11.
В функциональном элементе 11 рп0 редел ют сумму этих сигналов и отIn the functional element 11 pn0, the sum of these signals and from
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792786118A SU817028A1 (en) | 1979-06-29 | 1979-06-29 | Method of automatic control of vinyl chloride emulsion polymerization process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792786118A SU817028A1 (en) | 1979-06-29 | 1979-06-29 | Method of automatic control of vinyl chloride emulsion polymerization process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU817028A1 true SU817028A1 (en) | 1981-03-30 |
Family
ID=20836296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792786118A SU817028A1 (en) | 1979-06-29 | 1979-06-29 | Method of automatic control of vinyl chloride emulsion polymerization process |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU817028A1 (en) |
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1979
- 1979-06-29 SU SU792786118A patent/SU817028A1/en active
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