控制方案
硫酸部分:主要有液位,浓度,温度调节控制.液位(除锅炉液位外),浓度,没有什么干扰,使用单回路较易 实现,温度调节主要有焚硫炉出口温度,主蒸汽温度调节。温度存在滞后现象,前者主要受磺压,风量的 影响,后者受减温水流量影响,使用单回路较难实现,方案中考虑不足,同时该厂设计中,在阀的选择上也存在着一定的问题,所以没能投自动。只有锅炉液位采用三冲量调节,控制结构如下:
发电部分:主要有液位,温度,压力调节控制.全部采用单回路调节。该车间由于生产情况要求，及调节阀缺陷，除热井水位，除氧器水位，除氧器压力外，多作手动调节。
四、画面构成
硫酸部分：画面共分为：干吸工段，液硫工段，焚硫转化工段，成品工段，风机流程，工艺状态表，汽机流程，历史趋势，三冲量调节，调节回路控制操作，系统焚硫锅炉停车画面，系统干吸转化停车画面，废热锅炉及辅助设备。
发电部分：画面共分为：除氧给水，减温减压流程，油回路图，工艺壮态表，历史趋势，调节回路，汽轮机组，报警事件，报警参数管理，联锁图。动态数据在流程图上相应处显示，点击画面按钮，画面之间可相互切换，点击工艺流程图上相应的调节阀，既可弹出PID画面，可在线修改给定值和输出值,可对PID参数进行整定.
Control scheme
Sulfuric acid part: mainly including liquid level, concentration and temperature regulation and control Liquid level (except boiler liquid level) and concentration have no interference. It is easy to realize using a single circuit. The temperature regulation mainly includes the outlet temperature of sulfur incinerator and the temperature regulation of main steam. There is a lag phenomenon in temperature. The former is mainly affected by sulfur pressure and air volume, while the latter is affected by desuperheating water flow. It is difficult to use a single circuit, and insufficient consideration is given in the scheme. At the same time, there are some problems in the selection of valves in the design of the plant, so it can not be put into automatic operation. Only the boiler liquid level adopts three impulse regulation, and the control structure is as follows:
Power generation: mainly including liquid level, temperature and pressure regulation and control All adopt single circuit regulation. Due to the requirements of production conditions and the defects of regulating valve, the workshop makes manual adjustment except for the water level of hot well, the water level of Deaerator and the pressure of deaerator.
4、 Picture composition
Sulfuric acid part: the picture is divided into: dry absorption section, liquid sulfur section, sulfur burning conversion section, finished product section, fan process, process status table, steam turbine process, historical trend, three impulse regulation, regulation loop control operation, system sulfur burning boiler shutdown picture, system dry absorption conversion shutdown picture, waste heat boiler and auxiliary equipment.
Power generation: the picture is divided into: deaerated water supply, temperature and pressure reduction process, oil circuit diagram, process state table, historical trend, regulation circuit, steam turbine unit, alarm event, alarm parameter management and interlocking diagram. The dynamic data is displayed at the corresponding position on the flow chart. Click the picture button to switch between the pictures. Click the corresponding regulating valve on the process flow chart to pop up the PID picture, modify the given value and output value online, and set the PID parameters
一、各品牌DCS、PLC备件
◆英维思福克斯波罗InvensysFoxboroI/ASeries系统：FBM（现场输入/输出模块）顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。
◆英维思ESD系统InvensysTriconex:冗余容错控制系统、基于三重模件冗余（TMR）结构的1现代化的容错控制器。
◆西屋Westinghouse：OVATION系统、WDPF系统、WEStation系统备件。
◆罗克韦尔AllenBradleyRockwell:1756/1771/1785/1747/1786/1771/2711、Reliance瑞恩等产品。
◆摩托罗拉Motorola：MVME162、MVME167、MVME1772、MVME177等系列。
◆XYCOM：I/OVME板和处理器等。
◆安川Yaskawa：伺服控制器、伺服马达、伺服驱动器。
◆施耐德莫迪康SchneiderModicon：Quantum140处理器、控制卡、电源模块等。
◆发那科FANUC：模块、卡件、驱动器等各类备件。
◆ABB：BaileyINFI90，工业机器人备件DSQC系列等。
◆西门子Siemens：SiemensMOORE，SiemensSimaticC1，Siemens数控系统等。
◆博士力士乐BoschRexroth：Indramat，I/O模块,PLC控制器,驱动模块等。
◆伍德沃德Woodward：SPC阀位控制器、PEAK150数字控制器。
二、工业机器人系统备件
◆优势品牌：ABBRobots、FANUCRobots、YASKAWARobots、KUKARobots、MitsubishiRobots、OTCRobots、PanasonicRobots、MOTOMANRobots等
