Device for automatically monitoring acetic anhydride content
The utility model belongs to the field of production of crude acetic anhydride, and particularly relates to a device for automatically monitoring the content of acetic anhydride. The feeding device comprises a feeding regulating valve and a discharging valve, the device is characterized by further c...
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Main Authors | , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
02.10.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The utility model belongs to the field of production of crude acetic anhydride, and particularly relates to a device for automatically monitoring the content of acetic anhydride. The feeding device comprises a feeding regulating valve and a discharging valve, the device is characterized by further comprising an on-line refractometer and a controller, the on-line refractometer is arranged on a bypass branched by the mixture circulating pipeline, the controller is electrically connected with the material supplementing adjusting valve, the discharging valve and the on-line refractometer, and thecontroller controls the material supplementing adjusting valve and the discharging valve according to output information of the on-line refractometer. Furthermore, the controller is a programmable logic controller (PLC). By using the device, the technical effects of real-time detection and automatic control of acetic anhydride in the production process are achieved, the device is high in working efficiency, existing equip |
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Bibliography: | Application Number: CN202020238247U |