Control system of centrifugal oil purification device

Abstract

The invention provides a control system of a centrifugal oil purification device, comprising an oil supply pump, a heater, a bypass valve and a centrifugal machine which are sequentially connected in series to a main oil line. The control system of the centrifugal oil purification device consists of an intelligent control module, a motor phase-sequence control module, a heating control module and an air exchanging and heat radiating module; control circuits of the oil supply pump, the heater, the bypass valve and the centrifugal machine are controlled by the intelligent control module; the intelligent control module is connected in series with one communication port to realize remote control; the oil supply pump and the centrifugal machine are controlled by a motor of the motor phase-sequence control module to steer correctly; the temperature of the heater is controlled precisely through the heating control module; and the control system is also connected in series with the air exchanging and heat radiating module. The control system of the centrifugal oil purification device has the remarkable advantages that: 1. the degree of automatic control is high, and remote control and state monitoring can be realized; 2. the oil supply pump and the centrifugal machine are kept to steer correctly; 3. the temperature control precision is high; and 4. the control system is good in ventilation and heat radiating effects and is safe and reliable.

Description

technical field [0001] The invention relates to a control system, in particular to a control system of a centrifugal oil purification device. Background technique [0002] The centrifugal oil purification device was introduced to my country from developed countries in the middle and late 1990s. It has been widely used in the past ten years, especially in the power industry for the filtration of lubricating oil in the main oil tank of steam turbines in power plants. The control system is an important part of the centrifugal oil purification device. It is the key to ensure the long-term efficient, safe and reliable operation of the centrifugal oil purification device under the rated working condition of the centrifuge. [0003] Oil supply pumps, centrifuges, heaters, bypass valves, etc. are key equipment in the system, and they should be operated, detected, fed back, and controlled in a reasonable sequence. [0004] The operation control process of the centrifugal oil purific...

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Problems solved by technology

[0005] At present, the control circuit of this type of equipment has the following deficiencies: the oil supply pump, centrifuge and electric heater, and centrifuge oil inlet / bypass solenoid valve are in the form of start / stop respectively, and there is no electrical interlock of reasonable work flow; the application pressure is not designed , temperature, flow, liquid level and other sensor signals to feed back the operating status of each equipment, so as to realize a reasonable electrical control chain logic, making it difficult for the operator to operate, the degree of automatic control is low, the service life is short, and the work efficiency is low

[0009] At present, due to long-term online operation of this type of equipment, the thyristor generates a lot of heat when it is working. Only one axial flow fan is used in the cabinet for ventilation. damage

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