Projects/ Energetic industry

	Automation control system of recycling water supply
	Automated controlling system reconstruction for turbine set № 11
	Automation control system reconstruction of steam generating units in stations №1 and №3
	Dozing System and Technological Parameters Control
	Workflow Automated Control System of the Heat Load Regulator of Boiler №3
	Reconstruction Workflow Automated Control System of Steam Generating Unit №12
	Automation System of the Pump Station №6
	Automation system for №3 dredging pump station
	№ 10 turbine set
	Shulbinsk Hydro Power Station
	3А and 3B conveyors
	The control system of the ore mass flows at the Balkhash Heat and Power Plant (BHPP)
	Automated control system reconstruction of steam generating units in station №11

"Automation system for №3 dredging pump station

Client: "AES CHP (Ust – Kamenogorsk Central Heating Plant)"

Procedure description:

Four dredging pumps (flow = 612 m3/hour, pressure = 110m) work according to one-stage scheme in winter or summer modes. In winter mode – nine boilers operating simultaneously, pulp flow = up to 1200 m3/hour, in summer mode - two boilers operating simultaneously, pulp flow = up to 400 m3/hour.
Ash and slag pulp is pumped to receiver tank, two pumps are run in parallel, pumping pulp to ash pond, the third pump is reserved and the fourth is under repair. Two operating pumps are run according to different sections of receiver tank, in order to get rid of dead zones.

Requirements for automation system:

• automatic protection of technological equipment in all operating modes;
• automatic control for regulation of technological parameters in operating range;
• individual remote/manual control of executive units;
• archivation of technological process parameters and print out of report forms;
• displaying of current and archived technological data.

Solution and characteristics of automation system:

Automated control and management system for №3 dredging pump station appears as hierarchically divided two-level system.
Lower level, based on "S7-300" controller, which collects and processes the values of technological parameters, delivers commands to executive units in accordance with selected criteria of control.
Upper level includes Р270В operator panel for displaying, storage of the values of technological parameters which can be transmitted via Ethernet to remote computer for further dead storage.

Start-up: 2004