旁路培训.ppt
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1、2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,1,CCI旁路系统知识培训,仪控专业组,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,c
2、opy,forward to customers or distribute externally,2,旁路系统概述,系统构成:测量系统:压力测量,温度测量,差压测量,阀位测量。液压系统:两个油站系统;六个液动调节阀;三个液动调节阀。控制系统:一个AV6+系统集成的控制机柜,内含PLC控制器,通讯网桥,伺服控制器,操作触摸屏等。,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to cust
3、omers or distribute externally,3,液压系统图,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,4,一个典型的高/低旁路系统,油站系统,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:Fo
4、r internal training only.Do not print,copy,forward to customers or distribute externally,5,液压控制设备,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,6,带保护功能的比例阀,具有调节控制功能和保位功能 定位功能的比例阀实现电
5、流与阀位成比例PV4/6/8/10 for 10-120 l/min并有失信号和失液压的闭锁功能。,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,7,三位四通 开关阀 APL,实现阀门的开关控制,2023/3/7,2003.CCI Control Components Inc.All rights reserved
6、.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,8,快速行程装置-SSB,在紧急情况下实现快速动作至开位或关位,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externall
7、y,9,Quick stroking device-SSB,蓄能器,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,10,阀位控制器 PVR10,Local positioner PVR10-1,Cabinet mounted positioner PVR10-10,2023/3/7,2003.CCI Control
8、 Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,11,智能液压定位 PVR 10,软件调试功能良好的定位功能快速绝对稳定高分辨率易接口标准化的接口简单DCS灵活的电源选项提供独立的安全功能,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal tr
9、aining only.Do not print,copy,forward to customers or distribute externally,12,PVR10-2 控制阀位并有快开快关功能,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,13,典型的控制反馈系统-HPBP,2023/3/7,2003.CCI
10、 Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,14,阀位反馈装置 RSG 15,阀位反馈装置 送出4-20 mA 反馈信号 4 个可调行程开关,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do
11、 not print,copy,forward to customers or distribute externally,15,油站系统(HPU),HV200/350 With integral accumulators,HV450 With remote mounted Accumulators(close to the valves),2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward t
12、o customers or distribute externally,16,液压图,蓄能器压力:21-24 MPa,出口母管压力 16 MPa,泄压阀,主泵,滤油泵,冷却风扇,滤网,Outlet for SSB-Accumulators,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,17,油站设计特点:,在自动
13、情况下,主备油泵三天自动切换油压低(P21MPa)备用泵自停连续3次出现油压低(P20MPa)主备油泵自动切换,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,18,旁路控制系统 AV6+,标准化设计设计特点采用状态观测器的控制器的方法减少了阀门及管道的热应力苏尔寿的旁路系统是一个满足整个电厂操作要求(锅炉和汽机)的
14、相对独立的系统。旁路系统和其他系统之间信号数量是较少的。更重要的是,一个旁路控制器可以精确满足旁路操作的要求,并可以简便地实现安全功能或其他快开或速闭功能。,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,19,自动旁路控制,2023/3/7,2003.CCI Control Components Inc.All r
15、ights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,20,高压旁路的主要功能,锅炉启动控制器依据锅炉蒸汽产量的需要控制和增加锅炉蒸汽压力。旁路控制蒸汽到再热器中,从而确保过热器和再热器中有适当的蒸汽流量。只要有蒸汽通过旁路装置,旁路控制器必须控制进入再热器的蒸汽温度。汽机启动高压旁路控制器必须控制蒸汽压力,直至锅炉主控制器可以进行压力控制为止。负荷操作在汽机带负荷以后,旁路处于关闭状态,但是控制器可以防止超压和
16、压力上升速率过快。汽机甩负荷/跳闸旁路打开,必要时借助快开装置进行,以防止过高的蒸汽压力并且控制压力。直到汽轮机再次承担起负荷为止。,2023/3/7,2003.CCI Control Components Inc.All rights reserved.P405 CAUTION:For internal training only.Do not print,copy,forward to customers or distribute externally,21,高旁自动启动过程和运行状态,旁路的自动启动过程是从锅炉点火到汽机接收所有蒸汽。高压旁路自动启动有以下几个过程:最小阀位最小压力设定
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