CAJ | 학술논문

为实现LNG接收站外输气与山东省天然气管网的燃气互换，提出了采用注入液氮的方式进行发热量调整。通过对比分析，将注氮口设计在高压外输泵出口管线上，该方案与加注氮气方式相比成本更低、功耗更小；然后采用PROII分别模拟计算出3种限制工况下燃气的高位发热量与沃泊指数，确定高压泵出口管道液氮注入比例范围为6．45～7．52 t LN2／100 t LNG ；最后，以接收站年外输量100×104 t为基础，给出了整个发热量调整方案需新增的主要设备及其相关参数。可为L N G接收站发热量调整方案的设计提供借鉴与参考。
위실현LNG접수참외수기여산동성천연기관망적연기호환，제출료채용주입액담적방식진행발열량조정。통과대비분석，장주담구설계재고압외수빙출구관선상，해방안여가주담기방식상비성본경저、공모경소；연후채용PROII분별모의계산출3충한제공황하연기적고위발열량여옥박지수，학정고압빙출구관도액담주입비례범위위6．45～7．52 t LN2／100 t LNG ；최후，이접수참년외수량100×104 t위기출，급출료정개발열량조정방안수신증적주요설비급기상관삼수。가위L N G접수참발열량조정방안적설계제공차감여삼고。
To achieve the exchange between LNG terminal transmission gas and natural gas pipe‐line network in Shandong Province ,injection of liquid nitrogen is proposed to adjust the calorific val‐ue .Through comparative analysis ,the nitrogen injection port is designed on the outlet pipeline of high‐pressure pump ,and compared with injection of nitrogen gas ,injection of liquid nitrogen has low‐er cost and less power consumption .High calorific values and Wobbe index under three limiting con‐ditions are calculated by PROII simulation to determine that the ratio range of liquid nitrogen injection is from 6 .45 to 67 .52 t LN2/100 t LNG on the outlet pipeline of high‐pressure pump .Finally ,the ad‐dition of major equipment and related parameters under the demand of the w hole adjustment strategies are given based on the one million tons output amount of the LNG terminal .It can provide references and samples for the design of calorific value adjustment strategy in other LNG terminals .