闭锅炉环三冲量调节系统控.docVIP

闭锅炉环三冲量调节系统控 锅炉控制系统，一般有蒸汽压力、汽包液位、炉膛负压、除氧器水位、除氧器压力等控制系统。锅炉的燃烧控制实质上是能量平衡系统，它以蒸汽压力作为能量平衡指标，不断根据用汽量与压力的变化调整燃料量与送风量，同时保证燃料的充分燃烧及热量的充分利用。锅炉微机控制系统，一般由以下几部分组成，即由一次仪表、现场机、上位机、手自动切换操作、执行机构及阀、电机等部分组成，一次仪表将锅炉的温度、压力、流量、氧量、转速等量转换成电压、电流等送入微机。 Boiler control system, generally have a steam pressure, steam drum level, hearth negative pressure, water level of deaerator, deaerator pressure control system, etc. Boiler combustion control is essentially the energy balance system, it with steam pressure as indicators of energy balance, and constantly adjusted to YongQiLiang and pressure changes in the fuel quantity and delivery, at the same time to ensure full combustion of fuel and make full use of heat. Boiler microcomputer control system generally consists of several parts, by an instrument, namely the machine, the upper machine, hand automatic switching operation, actuator and valve, motor parts, such as an instrument of boiler temperature, pressure, flow rate, rotating speed of oxygen, amount converted to voltage, current, etc into the computer. 微机控制系统由工控机、显示器、打印机、手操器、报警装置等组成，能完成对给水、给煤、鼓风、引风等进行自动控制，使锅炉的汽包水位、蒸汽压力保持在规定的数值上，以保证锅炉的安全运行，平稳操作，达到降低煤耗、提高供送汽质量的目的，同时对运行参数如压力、温度等有流程动态模拟图画面并配有数字说明，还可对汽包水位、压力、炉温等进行越限报警，发出声光信号，还可定时打印出十几种运行参数的数据。微机对整个锅炉的运行进行监测、报警、控制以保证锅炉正常、可靠地运行，除此以外为保证锅炉运行的安全，在进行微机系统设计时，对锅炉水位、锅炉汽包压力等重要参数应设置常规仪表及报警装置，以保证水位和汽包压力有双重甚至三重报警装置，以免锅炉发生重大事故。  Microcomputer control system consists of industrial computer, monitor, printer, hand-operated device, alarm device, etc, can be done to feed water, coal, air blast, automatic control, such as wind, keep the boiler steam drum water level, steam pressure on the specified value, to ensure the safe operation of boiler, smooth operation, to reduce coal consumption, improve the quality of steam for the purpose of, at the same time of operation parameters such as pressure, temperature, flow dynamic simulation graph pictures with Numbers, but also to the steam drum water level, pressure, temperature and so on limit alarm, signal light, also