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
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the control circuit and main circuit of this product use ordinary electrical devices. Compared with electronic devices and power electronic devices, not only the device has lower integration, poor reliability, and s

Method used

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  • Constant-current source intelligent control cabinet for crude oil electric dehydration
  • Constant-current source intelligent control cabinet for crude oil electric dehydration
  • Constant-current source intelligent control cabinet for crude oil electric dehydration

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Example Embodiment

[0017] The specific structure of the intelligent control cabinet of the present invention will be further described in detail with reference to the accompanying drawings.

[0018] Such as figure 1 with figure 2 Shown. The constant current source intelligent control cabinet for crude oil electric dehydration of the present invention is composed of a cabinet body, a power main circuit and a control circuit installed in the cabinet body. The main circuit of the power supply is connected with a thyristor device as a switch to control the on and off of the main circuit. The selection and control of the inductor in the main circuit is also controlled by the thyristor device as a switch. Each thyristor device is turned on and off by an intelligent dedicated controller. For control, the detection, display, and control devices for working status are all connected to a PLC controller for control.

[0019] The said thyristor is controlled by a dedicated controller, which is composed of GY-D...

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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.

Description

technical field [0001] The invention relates to a control cabinet, in particular to a constant current source intelligent control cabinet for electric dehydration of crude oil. Background technique [0002] At present, most of my country's oil fields have entered the stage of high water-cut production. The water content of crude oil has caused great troubles to oilfield gathering, transportation and refining, and its discharge will also pollute the environment. Therefore, crude oil dehydration has become an indispensable process in oil fields. Chinese Patent No. CN203942152U discloses a product of "Crude Oil Electric Dehydration Constant Current Source Automatic Control Cabinet", which can provide a power control device for the crude oil electric dehydration process. However, the control circuit and main circuit of this product use ordinary electrical devices. Compared with electronic devices and power electronic devices, not only are the devices less integrated, less reliab...

Claims

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Application Information

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IPC IPC(8): C10G33/02G05B19/05
CPCC10G33/02G05B19/054G05B2219/1103
Inventor 侯国艳姜添元姜宇李明睿
Owner ANSHAN GUOYU CONSTANT CURRENT SOURCE EQUIP CO LTD
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