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Intelligent automatic control system for waste heat power station
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Residual heat power station intelligent fully automatic control system


1. The composition of the intelligent fully automatic control system

The system is mainly composed of program control, water quality online monitoring, expert system, etc. The main functional blocks are divided into:

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Second, the characteristics of intelligent fully automatic control system

1. The general logic of each subsystem and the total logic of the joint cycle completion the configuration in the DCS control system, and establish a subsystem and joint cycle total to control the independent operation screen, and automatically run the adjustment control system to control it in the expert system; Expert control system is more advanced than DCS's PID control, which can achieve complex computing and strong computing power, such as: decoupling control, robust control, self -learning, blurring control, etc.;

2. All subsystems establish an independent Xiaoshun control logic, which can realize the separate control operation of the subsystem;

3. The total logic of the combined cycle smooth control is based on the needs of the crew, and the division/subsystem is connected together or parallel according to certain conditions or judgment;

4. All sub -control and combined cycle total operations have the functions of \"Start \" and \"to terminate \";

5. The internal water -making system and soda analysis system are controlled by PLC, and communication with DCS is used to communicate with the bus;

6. Support remote continuous optimization, which can solve the problem of on -site control remotely;

7. Support the large -scale modification and control strategy of online, facilitate optimization of control and debugging, and strong flexibility;

8. With intelligent signal processing function, to a certain extent, it can solve the problem of the measurement signal jump and inaccurate and the problem of poor linearity of the mechanism;

9. With the ability of non -disturbing tracking and non -disturbing switching, optimizing control input and resection are non -disturbing, and will not cause major disturbances to the original system;

10. With a security control function, to a certain extent, it can avoid the operational operation of the operator;

11. With the alarm prompt function, when optimizing the withdrawal of the control sub -function exit, it will send an alarm prompt to the operator to remind the operator to manually intervene.


Third, the main role of intelligent fully automatic control system

In order to improve the intelligent level of the power plant, the power station optimizes the automatic control system to achieve automatic boiler, and the steam, sewage discharge, rushing, heating, connecting, lift, and normal shutdown of the steam turbine generator sets. Automatic control, a large number of electric valves, pneumatic valves, distant instruments, and high -definition cameras have been added to the power station. Various data and operating parameters are transmitted to the central control room, so that the operators can monitor in real time in the power station center control room. At the same time, the power station adds a lot of control. Unit, the automated control of chemical water systems, online sampling and drugs are fully automatic. The system has the following main functions:

1. Improve the safety level of power stations

The operation of the residual heat power plant is affected by the production and operation of cement clinkers. The system parameters fluctuate large, the operating personnel operate a large amount, and there is a large operating risk. The intelligent fully automatic control system automatically reads various process parameters, automatically adjusts and optimizes various types of data indicators and operating parameters according to the change of the process. The automatic control is achieved through the established control logic to reduce the human factors in the process of start -stop and system parameters. Reduce the risks caused by human subjective judgment errors and misunderstandings to improve the unit's long -term safe and stable operation level.

2. Effectively improve the operating efficiency and reduce the operating intensity of the operating personnel of the power station

The intelligent fully automatic control system will optimize the operation process to the greatest extent and simplify the operation steps. The operation method of the operator will also be transformed from the original frequent manual intervention to the simple operation parameter monitoring and accident processing, which effectively reduces the operating intensity of the operating personnel. At the same time, the focus of the operator's work turned to on -site maintenance, which improved the level of on -site equipment.

3. Improve the economic benefits of residual heat power stations

1) The intelligent full -automatic control system implements automatic adjustment of high -power motors such as water pumps and cooling tower fans. While ensuring the water level, water pack water level, circulating water temperature and temperature rise, the motor is optimized. Running, reducing the power consumption of the motor and the power consumption of the waste heat power station;

2) The residual heat power plant generally runs in the main steam slide parameters. The temperature of the main steam pressure increases the temperature of the waste heat boiler exit, and the temperature of the remaining heat is also increased. The intelligent fully -automatic control system automatically increases or decreases the power generation load according to the main steam pressure change, maintaining the main steam pressure and the temperature of the boiler export of the boiler exports unchanged. While reducing the frequent adjustment of the unit load of the operator, the waste thermal utilization rate is increased.


Fourth, the main control loop composition

5. Remnant power station control logic process

6. Effect display

• Optimization control effect of residual heat boiler boiler semi -liquid level

• Anti -interference, coupling optimization control effect between residual heat boilers

• Soda online analysis system effect


• Water -making system effect




Intelligent automatic control system for waste heat power station

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Shandong Shenxin Energy Saving and Environmental Protection Technology Co., Ltd. was established in July 2014 with a registered capital of 10 million yuan. The company is a company that is full of vigor and vitality, strong corporate 

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