Constant-current source intelligent control cabinet for crude oil electric dehydration
An intelligent control cabinet and electric dehydration technology, applied in the field of control cabinets, can solve the problems of difficulty in adapting to the complex on-site environment of crude oil dehydration production, no intelligent control mode, low device integration, etc., achieving flexible and convenient control modes and improving explosion-proof grades. and safety, and the effect of improving reliability
Pending Publication Date: 2020-06-19
ANSHAN GUOYU CONSTANT CURRENT SOURCE EQUIP CO LTD
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Abstract
The invention discloses a constant-current source intelligent control cabinet for crude oil electric dehydration. According to the constant-current source intelligent control cabinet, thyristor devices are connected in a power supply main loop to serve as switches to control on-off of the main loop, inductors in the main loop are also controlled by the thyristor devices as switches, and the on andoff of each thyristor device are controlled by an intelligent special controller; detecting, displaying and controlling devices for a working state are all connected to a PLC and control; And the PLCcontroller is composed of a CPU ST40 of the Siemens S7-200SMART series and an expansion module EM AE04. According to the invention, 1, compared with a device adopting a contactor, the maintenance work and the cost can be saved, the service life is greatly prolonged, and the explosion-proof grade and safety of the cabinet are improved; and 2, due to the adoption of a PLC controller, the reliability of detection and control work is improved, and the system is convenient to expand and suitable for the change of on-site conditions.
Application Domain
Dewatering/demulsification with electric/magnetic meansProgramme control in sequence/logic controllers
Technology Topic
Constant current sourceContactor +7
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