高压泄压阀指挥器的改进.pdf

2010年
道技术5
2010
第4期
Pipeline Technique and Equipment
No 4
高压泄压阀指挥器的改进
张大鹏',徐士影2,汪成龙
(1.管道储运公司潍坊处东营输油站,山东东营2570002.胜利油田集输总厂孤岛原油库,山东东营257000)
摘要:泄压设施是石油化工装置安全保护系统的重要组成部分。对于长距离密闭输油管道,输油
泵站必须设有压力保护泄放设施,防止瞬变压力对输油设备造成的危害。担负着胜利油田原油外输任
务的东临复线沿线泵站的高压泄压阀出现的故障多集中在泄压阀指挥器上,经过分析调研试验后,对
高压泄压阀指挥器进行了改造,利用压力开关、电磁换向润、继电器等电器元件构成电气装置指挥器替
代原设备的机械结构指挥器,保证了泄压阀的控制精度和可靠性。
关键词:泄压设施;高压泄压闲;指挥器;防爆电磁換向阀;压力开关
中图分类号:TE9文献标识码:B文章编号:1004-9614(2010)04-028-02
Utilization of the Solenoid Valve to Realize the Control over
the High-pressure Atmospheric Valve
ZHANG Da-peng ,XU Shi-ying, WANG Cheng-long
(1. Pipeline Storage and Transportation Company Dongying Oil Station, Dongying 257000, hina
2. Gudao Crude Oil Library of the Gudao Branch Factory of Gathering and Transportation, Dongying 257000, China)
Abstract: The depressur zed device is an im or ant part of the security protection s stem of the petrochemical facilities. For
long-distance hermetic oil pipelines, pumping station must have depressurizing protective facilities to prevent the damage caused
by transient pressures to the transfering facilities ime at the case that the failures of the high-pressure atmospheric valve of the
Donglin double-line pumping tation which undertakes the outward ransmission of crude oils in the Shengli oilfield, are focused
mainly on the director of the atmospheric valve, through analysis, research and test and validation, the director of the high-pressure
atmospheric valve has been transformed. The use of pressure switches, soleniod valves, relays and other electrical components of e-
lectrical installa ions constitutes a direct mechanical device to replace the original equipment, namely the structure of the com-
mand device. The pressure relief valve control accuracy and reliability are guaranteed
Key words depressurized device; high-pressure atmospheric valve; director; anti-explosion reversing solenoid valve; pressure
switch
0引
放系统将启动,把压力泄放到进站低压管段内,防止
泄压设施是石油化工装置的重要组成部分,是安出现水击破坏现象,对输油管道设施的保护作用。
全生产的关键环节。对于长距离密闭输油管道,输油1 IOSER414-6305高压泄压阙的工作原理
泵站必须设有压力保护泄放设施,当管道输送原油出
6305型指挥器是依据泄压阀的上游压力来控制
现压力扰动时,在超压点把部分甚至全部液体泄放到泄压阀通断并进行泄压的装置。指挥器的球形阀芯
储油罐中,以减轻瞬变压力波动,防止瞬变压力对输被夹在阀芯调整器和阀座之间,人口压力作用到主
油设备的危害。
板上,通过控制管线进入指挥器。只要入口压力低于
东临复线是担负胜利油田原油外输任务的密闭设定压力,球的控制弹簧就会使指搾器排气球座顶在
长输管道。2000年底,在沿线东营、滨州等站安装并指挥器球阀芯上。入口压力通过指挥器孔加载到活
投用了以FSER414-6305高压泄压阀为主要设备的塞上并且使主阀关闭;当人口压力上升到高于设定压
高、低压泄压系统,当发生干线压力超高,同时出站调力时,指挥器控制弹簧并使指挥器排气座离开球形阀
节阀失控和硬线压力跳泵保护不起作用时,高低压泄芯。活塞加载压力通过指挥器排气球座圈泄放到下
游的速度比通过指挥器节流孔产生的压力快,这样使
收稿日期:2010-03-19收修改稿期:2010-03-29
入口压力不能平衡主阀板并且使主阀打开。当入口