石油与天然气化工
石油與天然氣化工
석유여천연기화공
CHEMICAL ENGINEERING OF OIL AND GAS
2014年
5期
501-504
,共4页
LNG%储罐%单容%液化天然气%静态日蒸发率%压力控制
LNG%儲罐%單容%液化天然氣%靜態日蒸髮率%壓力控製
LNG%저관%단용%액화천연기%정태일증발솔%압력공제
LNG%storage tank%single capacity%liquefied natural gas%static daily evaporation rate%pressure control
单容LNG储罐在中小型天然气液化装置中应用广泛,且造价低廉,但其安全性较低。静态日蒸发率的高低及压力控制系统是否能够控制储罐压力在正常范围内是衡量单容罐性能优良与否的重要表征。珠海天然气液化装置拥有两座相同的中型单容LNG储罐,从该装置的实际运行情况出发,测算了储罐的静态日蒸发率随充满率的变化情况,并分析说明造成储罐压力快速变化的原因以及压力控制系统的控制效果。
單容LNG儲罐在中小型天然氣液化裝置中應用廣汎,且造價低廉,但其安全性較低。靜態日蒸髮率的高低及壓力控製繫統是否能夠控製儲罐壓力在正常範圍內是衡量單容罐性能優良與否的重要錶徵。珠海天然氣液化裝置擁有兩座相同的中型單容LNG儲罐,從該裝置的實際運行情況齣髮,測算瞭儲罐的靜態日蒸髮率隨充滿率的變化情況,併分析說明造成儲罐壓力快速變化的原因以及壓力控製繫統的控製效果。
단용LNG저관재중소형천연기액화장치중응용엄범,차조개저렴,단기안전성교저。정태일증발솔적고저급압력공제계통시부능구공제저관압력재정상범위내시형량단용관성능우량여부적중요표정。주해천연기액화장치옹유량좌상동적중형단용LNG저관,종해장치적실제운행정황출발,측산료저관적정태일증발솔수충만솔적변화정황,병분석설명조성저관압력쾌속변화적원인이급압력공제계통적공제효과。
Single capacity LNG storage tanks are widely used in small and medium-sized natu-ral gas liquefaction plants .T he cost of tank is low ,but the security is poor .T he discretion of the static daily evaporation rate and w hether the pressure control system can control the tank pres-sure within the normal range are the important characterization to evaluate the performance of single capacity tank .Zhuhai LNG plant includes two medium single LNG storage tank with the same size ,based on the practical operation of the device ,the change of static daily evaporation rate with filling level were measured ,the cause of the rapid change of the tank pressure was ana-lyzed ,and the control effects of pressure control systems were demonstrated .