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过程优化: 应用于制浆造纸行业的SMART Clean

SMART Clean™ Intelligent Sootblowing is a closed loop control system that uses feedback from the heat exchanger, gathered in real-time during normal boiler operation, to effectively clean the recovery boiler heat transfer surfaces

This system intelligently manages the sequence of sootblower operation through the use of a targeted cleaning strategy that saves steam by dynamically managing the sootblowing timing and flow. The SMART Clean™ system utilizes the real-time boiler data to detect build up in specific areas of the boiler.  Once this build up has been identified, the system initiates a localized cleaning events to target the build up with the appropriate intensity. Comprised of an industry leading SMART Controls platform and real time Thermodynamic Modelling (TDM) feedback, the Clyde Bergemann SMART Clean™ system is the ultimate weapon to combat carry over and plugging problems while maximizing the heat transfer efficiency of the recovery boiler.

SMART Clean过程

克莱德贝尔格曼的SMART Clean过程是一个重复且可自主学习的过程,具体步骤如下:

步骤1:收集所有信息 

从两个不同类型的来源收集锅炉过程和性能数据:锅炉操作的间接来源(蒸汽温度、烟气温度等)和安装传感器的直接来源。

步骤2:解释信息

Clyde Bergemann has developed a numerical algorithm to filter the massive volume of data from the DCS and fouling sensors and convert it into boiler fouling information. The incoming data will be verified to ensure only quality information is used to control sootblower operation.

步骤3:自动激活

Once the analytical process from Step 2 is completed, the system operates selected cleaning equipment that will give the most heat transfer improvement impact for the boiler. Sootblower parameters such as blowing pressure, blowing speed, and zone by zone control are precisely directed according to the local cleaning requirements. 

步骤4:测量及回应判断

Once the particular cleaning devices complete their operations, the SMART Clean™ system evaluates the cleaning effectiveness and uses the information to continuously improve the sootblower cleaning performance.

The SMART Clean™ system will also use the existing flue gas draft differential pressures (DP) as a process variable and will calculate effectiveness for each sootblower on flue gas DP.

 

变压/流量控制模块

可选择性添加变流/压力模块,使操作者可以调整控制系统中清洁压力,而不是调整提升阀。使用该模块之后,可更改清洁压力,从而在同一喷水枪通道范围内,为清洁各不同管排提供适当的强度。当与单通道清洁一起使用时,通过减少清洁介质流,还可节省清洁介质。(注:压力控制阀必须能够从控制系统的输入进行调转。)