武警学院学报
武警學院學報
무경학원학보
JOURNAL OF THE CHINESE PEOPLE'S ARMED POLICE FORCE ACADEMY
2012年
4期
36-38
,共3页
LNG%储罐%泄漏扩散%蒸气云爆炸
LNG%儲罐%洩漏擴散%蒸氣雲爆炸
LNG%저관%설루확산%증기운폭작
LNG%tank%leakage%vapor cloud explosion
分析了大连LNG接收站生产工艺及储罐区特点,利用冲量气体喷射扩散模型计算了储罐低压输送管道发生泄漏后天然气蒸发扩散时爆炸下限浓度的分布,运用DANGERS软件计算了蒸气云爆炸波参数,对储罐区发生火灾爆炸危险进行了定量评价。结果表明,当泄漏孔径为200mm时,LNG泄漏下风向最大危险距离为310m,距爆源中心61.3m范围内的暴露人员将遭受伤害。结合该接收站的具体实际,提出了针对性的防治措施。
分析瞭大連LNG接收站生產工藝及儲罐區特點,利用遲量氣體噴射擴散模型計算瞭儲罐低壓輸送管道髮生洩漏後天然氣蒸髮擴散時爆炸下限濃度的分佈,運用DANGERS軟件計算瞭蒸氣雲爆炸波參數,對儲罐區髮生火災爆炸危險進行瞭定量評價。結果錶明,噹洩漏孔徑為200mm時,LNG洩漏下風嚮最大危險距離為310m,距爆源中心61.3m範圍內的暴露人員將遭受傷害。結閤該接收站的具體實際,提齣瞭針對性的防治措施。
분석료대련LNG접수참생산공예급저관구특점,이용충량기체분사확산모형계산료저관저압수송관도발생설루후천연기증발확산시폭작하한농도적분포,운용DANGERS연건계산료증기운폭작파삼수,대저관구발생화재폭작위험진행료정량평개。결과표명,당설루공경위200mm시,LNG설루하풍향최대위험거리위310m,거폭원중심61.3m범위내적폭로인원장조수상해。결합해접수참적구체실제,제출료침대성적방치조시。
In this paper,the basic situation of Dalian liquid natural gas station is introduced.The maximum density of the explosion distribution of liquid natural gas after an explosion was analyzed by Momentum Gas Jet Dispersion evaluation method and the explosion hazard was calculated by Multi-Energy Method.The evaluation result shows that the hazard distance is 310 m and the facilities and personnel within the radius 61.3m would be destroyed and damaged.Based on the analysis of the main factors,some improving measures are suggested.
