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CHANPINTUIJIAN

LNG(液化天然气)的基本属性及物化性质

201911-0609:05:37

净化后的气(甲烷)在常压下,被冷却至约-162℃时,发生相变,由气态变成液态,这种凝结成液态的新物质被称为液化气。LNG是气转变的另一种新能源形式,LNG的物化性质如下

(1)ZUCHENG。LNGDEZHUYAOCHENGFENWEIJIAWANCH4,HAIYOUSHAOLIANGDEYIWANCaH6、BINGWANC3HsYIJIDANN:DENGQITAQIZHONGHANYOUDEWUZHI。ANZHAOOUZHOUEN1160DEGUIDING,LNGZHONGJIAWANHANLIANGYINGGAOYU75%,DANHANLIANGYINGDIYU5%;

秒速飞艇微信群(2)WENDU。LNGDEFEITENGWENDUQUJUEYUQICHENGFEN,ZAIBIAOZHUNDAQIYAXIATONGCHANGWEI-166~157℃ ,ZILIAOSHANGTONGCHANGSUOSHUODE-162℃SHIZHICHUNJIAWANCZHIDEFEITENGWENDU,LNGDELINJIEWENDUWEI-82.5℃;

(3)MIDU。YOUYULNGDECHENGFENBUTONGMIDUYEHUICHANSHENGCHAYI,TONGCHANGWEI430w-470kg/m³,JIAWANHANLIANGYUEGAO,MIDUYUEXIAO,MIDUHAIYULNGYETIWENDUYOUGUAN,WENDUYUEGAO,MIDUYUEXIAO,DANGLNGZHUANBIANWEIQITISHI,QIMIDUWEI1.5kg/m³,QITIDEWENDUSHANGSHENGDAO-107℃SHI,QIMIDUYUKONGQIDEMIDUXIANGDANG,JILNGQIHUAHOUWENDUGAOYU-107℃SHI,QITIDEMIDUBIKONGQIXIAO,RONGYIZAIKONGQIZHONGKUOSAN。

(4)RANSHAOYUBAOZHA。LNGZAIYI162℃DEDIWENXIA,QIRANSHAOFANWEIDETIJIBAIFENBIWEI6%~13%。LNGDEZHEHUODIANWENDUSUILNGZHONGZHONGTINGHANLIANGDEZENGJIAERJIANGDI,CHUNJIAWANCH4DEZHEHUOWENDUWEI650℃,QITAIREZHI9100KcaI/m³,YETAIREZHI12000Kca1 /kgBAOZHAFANWEIDETIJIBAIFENBIWEI5%~15%;

(5)ZHENGFA。LNGCHUCUNZAIJUERECHUGUANZHONG,CHUGUANWAIJIEDERELIANGSHENDAOGUANZHONGHUIDAOZHIGUANNEILIANGDEDIWENYETIQIHUA,ZHEIZHONGQITIJIUJIAOZUOLNGZHENGFAQI。YIBANZHENGFAQIZHONGYUEHAN20%DEN2HE80%DECH;JISHAOLIANGCzH6ZHENGFAQIWENDUDIYU-113℃SHIQIZUFENJIBENSHICHUNJIAWANCH4WENDUSHANGSHENGDAOYUE-85℃SHICH;ZHONGYUEHAN20%DEN2;

秒速飞艇微信群(6)YICHUYUKUOSAN。GANGXIELOUDELNGHUIXUNSUZHENGFA,DANGGANGXIELOUDELENGDELNGZHENGFAQIZAIWEIDALIANGXISHOUZHOUWEIKONGQIZHONGDERELIANGQIAN,LENGZHENGQIYANDIMIANBUDUANKUOSAN,XINGCHENGYIGELIUDONGCENG,DANGZHENGFAQIWENDUSHANGSHENGZHIYUEYI80℃SHI,ZAIWENDUJIXUSHANGSHENGGUOCHENGZHONG,ZHENGFAQIHEKONGQIDEHUNHEWUZHUJIANKUOSANXINGCHENGKEJIANDEBAISEYUNTUAN。

TONGGUOFENXILNGDEWUXINGBINGJIEHESHIJISHENGCHANQINGKUANG,LNGDEWEIXIAN、YOUHAIXINGKEYIFENWEIYIXIAJIZHONG

(1)储存:其危险程度与LNG的状态有关。外界的热量传入LNG储罐内会导致储罐内液态LNG气化,以使储罐内压力升高,使阀打开困难或者造成大的破坏。储罐中LNG各组分密度大的在下,密度小的在上,叫做LNG分层。当产生的密度差大于5kg/m³时,密度不同的两层之间进行传热、传值和蒸发,当两层LNG的密度相接近时就会发生混合,发生LNG的翻滚,在很短的时间会产生大量蒸发气,导致罐内压力迅速上升,上升到值时就会顶开阀。

(2)XIELOU:YOUYULNGDEDIWENTEXING,SUOYULNGDEJINSHUBUJIANHUICHUXIANLENGSHOUSUO,ZAILNGGUANLUXITONGDEHANFENG、GUANJIAN、FALAN、FAMEN、MIFENGCHUYIJILNGJINSHUBUJIANCUNZAIDEFUSHIQUEXIANCHUDENGDOUKENENGFASHENGLNGDEXIELOU,XIELOUHOUDELNGZHENGQIHUIXINGCHENGBIQITIJIDABAIBEIDEZHENGQIYUN,RUOYUQIANZAIDEHUOYUANZEHUIFASHENGHUOZAIHEBAOZHADEWEIXIAN。

秒速飞艇微信群(3)HUOZAI:LNGZHENGQIYUDIANHUOYUANHOUZHEHUO,HUOYANHUISUIZHEZHURANWUYANGQIERKUOSAN,DANGRANSHAOWULNGLIANGHENDASHI,HUOZAIYINQIDESHANGHAIBANJINGYEHUIHENDA,HUIJIZHOUWEISHEBEISHESHIYIJIZHOUWEIJUMINDENGZAOCHENGYANZHONGDESUNSHI。

(4)LENGBAOZHA:SHUIYULNGZHIJIANYOUHENGAODERECHUANRESULV,XIELOUDELNGYUSHUIHUIJILIEDEZHENGFA,DANGQIZHENGFALVDADAO0.18/(m2·s)SHIJIUHUIFASHENGLENGBAOZHA,LNGDEJILIEFEITENGBANYOUDADEXIANGSHENG、BINGPENCHUSHUIWU。ZHEILEISIYUSHUIDILUOZAISHAOHONGDETIEBANSHANGXUNSUZHENGFADEXIANXIANG。

(5)DIWENDONGSHANG:YOUYULNGSHI-162℃DEDIWENSHENLENGYETI,TADECHUCUNHECAOZUODOUZAIDIWENXIAJINXING,YIDANFASHENGLNGDEXIELOU,HUIYINQIXIANGGUANSHEBEIDELENGSHOUSUOHECUIXINGDUANLIE,CONGERPOHUAISHEBEI,YINFASHIGU。BINGQIE,RENTIPIFUZHIJIEYUDIWENLNGSHESHIBIAOMIANJIECHUHUISHIPIFUBIAOMIANDECHAOQIHUININGJIE,BINGZHANZAIDIWENWUTIBIAOMIANSHANG,PIFUJIPIFUYIXIAZUZHIDONGJIE,HENRONGYISILIE,BINGLIUXIASHANGKOU。

(6)DIWENMAZUI:XIELOUDELNGZHENGFAQIWENDUHENDI,ZAIMEIYOUBAOHUCUOSHIDEQINGKUANGXIA,RENZHANGSHIJIANCHUYUDIYUYI10℃XIADEHUANJINGZHONG,JIUHUIFASHENGDIWENMAZUI,SUIZHETIWENDEXIAJIANG,RENDEZHILIHUODONGHESHENGLIGONGNENGDOUXIAJIANG,SUIZHIXINZANGGONGNENGJIANGHUISHUAIJIE,TIWENDEJINYIBUXIAJIANGJIANGHUIDAOZHISIWANG。

秒速飞艇微信群(7)ZHIXI:SUIRANLNGZHENGQI,DANQIZHONGHANYANGLIANGDI,XIRUSHENTIRONGYISHIRENZHIXI。XIRULNGDIWENZHENGQI,RENTINEIYANGHANLIANGHUIJIANGDI,DAOZHIGONGYANGBUZU,HUXIKUNNAN。RUOXIRUCHUNJINGDELNGZHENGQIERBUKUAISUTUOLI,HENKUAIRENTIJIUSHIQUZHIJUE,GONGZUORENYUANWURENHEGANJUE,YEWURENHEJINGSHI,JIFENZHONGHOUJIUHUISIWANG。

JINGUANLNGSHIYIZHONGJUYOUQIANZAIWEIXIANDERANLIAO,DANSHI,CONGJISHINIANLNGCHANYEDEFAZHANGUOCHENGLAIKAN,LNGCHANYEHEQI、QIYOU、LPGCHANYEBIQILAI,TADEJILUYAOHAOHENDUO。DANZHEIBINGBUSHISHUOLNGCHANYEJIUBUWEIXIAN,GUANJIANSHIKANNENGFOUZHANGWOLNGDETESHUXING,SHIFOUNENGGOUANZHAOXINGYEGUIFANHEBIAOZHUNQUSHEJI、SHIGONG、YUNXINGJIGUANLI。