Power station wastewater treatment control system based on PLC (programmable logic controller)

Abstract

The invention discloses a power station wastewater treatment control system based on a PLC (programmable logic controller). The system comprises a main PLC, a relay operating room and a wastewater treatment field, wherein the relay operating room comprises an embedded controller and at least two intermediate relays, and the at least two intermediate relays comprise an input end intermediate relayand an output end intermediate relay; the main PLC is connected with the embedded controller, a contactor, an acid-base neutralization device, a sewage treatment device and a monitoring device are arranged in the wastewater treatment field, a contactor normally-open contact is arranged on the contactor, one end of the contactor is connected with the output end intermediate relay, and the other endof the contactor is connected with the acid-base neutralization device. The embedded controller serving as a core of the wastewater treatment control system has the main functions of controlling treatment equipment in the wastewater treatment field and acquiring data of each system, and the system has the characteristics of small system power consumption, high practicability, simple structure design and the like.

Description

Technical field [0001] The invention relates to the technical field of wastewater treatment, and specifically, is a control system for power station wastewater treatment based on a PLC controller. Background technique [0002] With the strengthening of national awareness of environmental protection, the discharge of wastewater from the water treatment system of power stations must meet the discharge standards. With the rapid increase in the total population of urban residents and the substantial increase in power consumption, the total amount of sewage discharged continues to increase, and it is more Severe water pollution and more serious water pollution. Sewage problems are involved throughout the country. Therefore, China is currently a region with serious water pollution problems. At the same time, the development of sewage treatment industry started late and the speed is slower. , The application technology is lagging behind. In the early stage of power station sewage treatm...

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Problems solved by technology

[0002] With the strengthening of the public's awareness of environmental protection, the discharge of waste water from the water treatment system of the power station must meet the standards. With the rapid increase of the total urban population and the substantial increase in electricity consumption, the total amount of sewage discharged continues to increase and presents a comparative Serious water pollution, and more serious water pollution, sewage problems are involved in the whole country, so my country is currently an area with serious water pollution problems, and the development of sewage treatment industry started relatively late, and the speed is slow , the application technology is relatively lagging behind. In the early stage of power station sewage treatment and installation, the level of sewage treatment technology in my country is still low. The above problems have always hindered the effective solution of power station wastewater treatment problems.

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