广西快3

【荐读】 一文读懂LNG接收站工艺系统及主要设备

发布时间:2019-03-22 10:04                

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PU

LNG接收站

工艺系统及主要设备

YEHUATIANRANQI(LNG) ZUOWEIYIZHONGQINGJIE、GAOXIAODENENGYUANZHENGZAICHENGWEIQUANQIUNENGYUANSHICHANGDEXINREDIAN, LNGYICHENGWEIGUOJITIANRANQIMAOYIDEZHONGYAOBUFEN。WOGUODUILNG CHANYEDEFAZHANYUELAIYUEZHONGSHI,FENBIEZAIGUANGDONG、FUJIAN、SHANGHAI、JIANGSU、ZHEJIANG、SHANDONG、HEBEI、LIAONINGDENGDIQUGUIHUAHESHISHILELNGXIANGMU。JIEZHIMUQIANWOGUOGONGTOUCHAN21ZUOLNGJIESHOUZHAN(BUHANGANGAOTAI)。

图片来源:能源平说

广西快3SHANGHAIYEHUATIANRANQIXIANGMUYIQIGONGCHENGJIANSHEGUIMOWEINIANJIESHOU300WANDUNGONGCHENG,BAOKUO:1ZUO14.5WANm3 LNGCHUANZHUANYONGMATOUHE1ZUO3000DUNJIGONGZUOCHUANMATOU;3ZUO16.5 m3 LNGCHUGUANHEXIANGYINGDELNGHUISHOU、SHUSONG、QIHUAJIGONGYONGPEITAOSHESHI;52kmSHUQIGUANXIAN(BAOKUO36kmHAIDISHUQIGANXIANHE16kmLUYUSHUQIGUANXIAN),ZAILINGANGXINCHENGSHUQIMOZHANJINRUSHANGHAICHENGSHITIANRANQIGAOYAZHUGANWANGXITONG。XIAWENJIANGYISHANGHAILNGYIQIXIANGMUWEILI,JIESHAOLNGJIESHOUZHONGDUANDEGONGYIXITONG、ZHUYAOSHEBEIHECAOZUOGUOCHENGZHONGZHUYAOKONGZHICANSHU。

YI

广西快3 LNGJIESHOUZHANGONGYIXITONG

1

LNG主要物理性质

ZAIDAQITIAOJIANXIA,TIANRANQISHIGAOYIRANXINGDEWUSEQITI,WUWEIHUOYOUHENDANDECHOUWEI。 ZHENGQIDUIYANJING、BIZIHUOHOULONGWUCIJIXING,DANXIRUHUIDAOZHITOUYUN、HUXIKUNNANHUOSANGSHIYISHI,GAOQITINONGDUSHIKENENGDAOZHIZHIXI。 LNGYETIKEZAOCHENGDONGSHANG,QITIDEZHUYAOCHENGFENSHIJIAWAN。LNGDETIJIYUEWEIQIQITAITIJIDE1/620,ZHUYAOCHENGFEN(%,MOER)WEI:CH4 85~90,C2H6 3~8,C3H8 1~3,C4H10 1~2,C+5 WEILIANG。LNGZAIQIHUA(YUE-162℃)SHIDEZHENGFAQIANREYUEWEI511 kJ/kg。

2

LNG产业链

LNGLIYONGSHIYIXIANGTOUZISHIFENJUDA、SHANGXIAYOUGEHUANJIELIANXISHIFENJINMIDELIANZHUANGXITONGGONGCHENG,YOUTIANRANQIKAICAI、TIANRANQIYEHUA、LNGYUNSHU、LNGJIESHOUYUQIHUA、TIANRANQIWAISHUGUANXIAN、TIANRANQIZUIZHONGYONGHUDENGLIUGEHUANJIEZUCHENG,CHANYELIANRUTU1SUOSHI。QIZHONGRENHEYIGEHUANJIECHUXIANWENTIDOUJIANGSHIZHENGGEXITONGTINGCHE,ERQIEBIXUDUISHANGXIAYOUHUANJIEZUOCHUJUEPEICHANG。YINCILNGLIYONGGEGEHUANJIEDEGONGYIJISHEBEIBIXUANQUANKEKAO,LNGJIESHOUZHANSHIQIZHONGZHONGYAOHUANJIEZHIYI,YAOQIUGENGWEIYANGE。

图1:LNG产业链

3

 LNG接收终端工艺

从流程上看LNG站工艺并不复杂,但其中包含很多高科技知识。LNG在常压下沸点约-160℃,因此LNG站在气化之前的所有设备都是在-160℃下长期低温运行。这对设备的保冷、材质、防泄漏诸方面要求极高。通常接收站工艺可分为三个主要系统:LNG卸船系统、LNG存储系统、LNG外输系统,工艺流程如图2所示。

图2:LNG接收站流程示意图

1.3.1 卸船系统

LNGTONGGUOCHUANSHANGDEXIELIAOBENGJIANGLNGCONGCHUANCANGPAICHU。 TONGGUOSANGE16″DEXIELIAOBEIY-01A/B/CJINXINGXIECHUAN,BINGTONGGUO46″DEXIECHUANGUANXIANHE6″DEZAIXUNHUANGUANXIANJIANGLNGSHUSONGDAOANSHANGDELNGCHUGUAN,TONGSHIWEILEWEICHILNGCHUANCANGDEYALI,SUOXUDEQITITONGGUO16″DENGHUIQIBEIY-02CONGANSHANGDEBOGZONGGUANFANHUI。YINCIZAIXIECHUANGUOCHENGZHONG,BOGZONGGUANDEGONGZUOYALIBIXUGAOYULNGYUNSHUCHUANDEGONGZUOYALI,YIBIANQITIKEYIZIRANDICONGBOGZONGGUANLIUXIANGCHUANZHONG。FANHUILNGCHUANDEZHENGQIYALIYOUDIAOJIEFAPV-01KONGZHI。

XIECHUANCAOZUOWANCHENGHOUDUANKAIBEIYIQIAN,JIANGXIELIAOBEIPAIKONGBINGZAIBEIDEDINGBUGONGYINGGONGZUODANQIJINXINGCHUISAO。 LNGBEIPOFANHUIDAOLNGCHUANHELNGJIESHOUZHANDEMATOUPAIFANGGUANV-0101。MATOUPAIFANGGUANZHONGDELNGKEYIYONGPAIFANGGUANDIANJIAREQIDUILNGJINXINGJIARE,TONGGUOZHENGQIHUILIUGUANXIANJIANGCHANSHENGDEZHENGQISHUSONGDAOBOGZONGGUAN。HAIKEYITONGGUON2JIAYADEFANGSHIPAIFANGLNGZHI46″XIELIAOGUANXIAN。LNGXIELIAOJIPAIFANGLIUCHENGRUTU3SUOSHI。

图3:LNG卸料及排放流程图

XIECHUANWANCHENGHOUZAIMATOUBEIYONGQIJIAN,BIXUYONGSHAOLIANGDELNGXUNHUANWEICHIXIECHUANGUANXIANDEDIWENZHUANGTAI。XUNHUANGUOCHENGSHIJIANGBUFENLNGCONGGUANNEIBENGPAIFANGDAOXIECHUANGUANXIANZHONG,RANHOUDAOXUNHUANGUANXIAN,ZUIHOUDAOZAILENGNINGQIDEGUOCHENG。TONGGUODIAOJIEFAKONGZHIXUNHUANLIULIANG,SHILNGYANGUANXIANXUNHUANHUIMATOUZHEIYIGUOCHENGZHONGDEWENSHENGBUCHAOGUO4℃,YIFANGXIECHUANKAISHISHI“WENRE”DELNGBEITUIRUGUANZHONGSHICHUXIANDALIANGSHANZHENGXIANXIANG。ZAIXIECHUANGUOCHENGZHONGXUNHUANZHONGDUAN,XUNHUANGUANXIANYUXIECHUANGUANXIANBINGXINGCAOZUO,DANZAIMEICIXIECHUANCAOZUOZHIHOUZHONGXINJIANLIXUNHUAN。

1.3.2 LNG储存系统

广西快3YIBANLNGJIESHOUZHANZHISHAOXUYAOLIANGGE165,000 m3 DECHUGUANCAINENGMANZURICHANGCHUCUNHEXIECHUANDEYAOQIU,BENANGONGYOUSANGECHUGUAN,ZONGJINGRONGLIANGWEI3×165,000m3。MEIGECHUGUANPEIBEILIANGGENZHURUGUANXIANJIYITIAOJIANGLNGSHUSONGZHINEIGUANDINGBU,LINGYITIAOSHUSONGZHIDIBU。ZHURUMOSHIYOUCHUCUNDELNGHEXUYAOXIECHUANDELNGGEZIDEMIDUJUEDING,ZHURUDIANDEXUANZEZHUYAOSHIFANGZHIFASHENGLNGFENCENG,FENCENGKENENGDAOZHIFANGUNXIANXIANG。WEILECHUGUANDECHUQIYULENG(YONGLNGJINXING),TIGONGLEYUXIECHUANGUANXIANXIANGLIANDEPENLINHUAN。MEIGECHUGUANDOUZHUANGYOUDUILNGYEMIAN、WENDUHEMIDUYIJIQIXIANGYALIJINXINGANQUANJIANKONGDEZHUANGZHI。

CHUGUANDEJUEDUIYALIYOUBOGYASUOJIDEGONGZUOFUHEKONGZHI,YASUOJIKECONGBOGZONGGUANCHOUQUQITI。KEGENJUFEIXIECHUANHEXIECHUANCAOZUODEBUTONGFANWEIYIJIBUTONGDEDAQIYATIAOJIANDUICHUGUANDEJUEDUIYALISHEZHIDIANJINXINGDIAOJIE。ZAIYASUOJIWUFAWEICHIGUANNEIYALIHUOCHANGYAXIADADAOGUIDINGZHIZHIWAISHI,ANQUANZHUANGZHIKEBAOHUCHUGUANBUHUIFASHENGCHAOYAHUOZHENKONGQINGKUANG。HUOJUSHICHUGUANDEDIYICICHAOYABAOHU,DANGCHUGUANYALIDADAO260 mbargSHI,YALIKONGZHIFAKAIQIJIANGQITISHIFANGZHIHUOJUJINXINGRANSHAO。MEIGECHUGUANDOUPEIBEILEDUOGEYALIANQUANFA(PSV),DANGYALIDADAO290mbargSHIHOUYALIANQUANFAKAIQI,BINGTONGGUOWEIGUANDAOCHUGUANDINGBUDEANQUANWEIZHI,RANHOUPAIFANGDAODAQIZHONG。RUGUOYALIJIAODI(YOUTURANDEDAQIYALIBIANHUA、FUHUOSAIXIAOYINGDENGZAOCHENG),KEJIANGLAIZIWAISHUGUANDEPOZHENKONGTIANRANQIZHURUBOGZONGGUANZHONG。RUGUOZHURUDEQITIBUZUYIJIANGYALIWEICHIZAIKEJIESHOUDESHUIPING,ZETONGGUOANZHUANGZAIMEIGECHUGUANSHANGDEVSV(ZHENKONGANQUANFA)JIANGKONGQIYINRUGUANNEI。

1.3.3 LNG输出系统

SHUCHUXITONGZHUYAOBAOKUO:GUANNEIBENG、ZAILENGNINGQI、GAOYABENG、QIHUAQI、JILIANGQIAODENGSHEBEI。

MEIGECHUGUANANZHUANG4TAIGUANNEIBENG,LNGGUANNEIBENGTONGSHIYUNZHUANKETIGONGFENGZHILIULIANG。ZHUYAOJIANGLNGSHUSONGDAOGAOYASHUCHUBENGHEQIHUAQI,SHAOLIANGDELNGSHUSONGDAOLNGZHUANGCHEZHAN。ZAIGAOYASHUCHUBENGDESHANGYOU,LNGLIUFENCHENGLIANGGU:YIGULIUXIANGZAILENGNINGQI,YUYASUODEBOGJIECHUSHIQIZAICININGJIE;SHENGYUDELNGRAOGUOZAILENGNINGQIJINRUGAOYABENGDEBENGTONG,TONGGUOGAOYASHUCHUBENGJIDIYALNGJIAYA,RANHOUSHUSONGZHIQIHUAQI。WEIBAOZHENGGUANNEISHUSONGBENG、GUANWAIDIYAHEGAOYAWAISHUBENGZHENGCHANGYUNXING,BENGCHUKOUJUNSHEYOUHUILIUGUANXIAN。DANGLNGSHUSONGLIANGBIANHUASHI,KELIYONGHUILIUGUANXIANDIAOJIELIULIANG。ZAITINGZHISHUCHUSHI,KELIYONGHUILIUGUANXIANDAXUNHUAN,YIBAOZHENGBENGCHUYUDIWENZHUANGTAI。

广西快3SITAIXIANGTONGDEZHONGJIANTIYELIUQIHUAQI(IFV)ZUOWEIJIBENFUHE,MEITAIIFVKETIGONG25%DEFENGZHIFUHE。 YUYITAIIFVRONGLIANGXIANGDENGDEBEIYONGRONGLIANGYOULIANGTAIYEXIARANSHAOSHIQIHUAQI(SCV)TIGONG。JILIANGZHANANZHUANGZAIHAIDIGUANXIANRUKOUCHUJIESHOUZHANJIEQUDESHANGYOU。

ER

LNGJIESHOUZHANZHUYAOSHEBEI

1

XIELIAOBEI

CHANGJIANDELNGXIELIAOBEI:YOUQUANPINGHENGXING(FBMA)、XUANZHUANPINGHENGXING(RCMA)、SHUANGPINGHENGXING(DCMA)。ZAIXUANXINGSHIYINGKAOLVLNGXIECHUANLIANGHEXIECHUANSHIJIAN,TONGSHIGENJUZHANQIAOZHANGDU、GUANXIANJULI、GAOCHENG、CHUANSHANGCHUGUANNEISHUSONGBENGDEYANGCHENGDENG,QUEDINGQIYALIDENGJI、GUANJINGJISHULIANG。ZHENGFAQIHUILIUBEIZEYINGGENJUZHENGFAQIHUILIULIANGQUEDINGQIGUANJINGDENG。BENANCAIYONGDESHIDEGUOCHANDEXUANZHUANPINGHENGXINGXIELIAOBEI,QIJIEGOUXINGSHIYUYIBANYOUPINXIELIAOBEIMEIYOUSHENMEBENZHISHANGDEQUBIE,ZHISHIZAIMOUXIEFANGMIANYAOQIUGENGGAO。BIRUZAIXUANZHUANJIETOU,WEILEBAOZHENGZAIDIWENXIAYOULIANGHAODEMIFENGXINGNENGERCAIYONGLESHUANGCENGMIFENGJIEGOUBINGZAIMIFENGCHUYONGDANQIBAOCHIZHENGYAFANGZHILNGXIELU。WEILEANQUANMEITAILNGXIELIAOBEIHAIPEIBEILEJINJITUOLIZHUANGZHI(PERC)。XIELIAOBEIDEJIBENJIEGOURUTU4SUOSHI。

TU4:LNGXIELIAOBEIJIBENJIGOUTU

2

LNG储罐

广西快3LNGCHUGUANSHIJIESHOUZHANZHONGYAODESHEBEI,QIGONGNENGSHICHUCUNYEHUATIANRANQI。YINCI,XUANXINGYAOCONGANQUAN、TOUZI、YUNXINGCAOZUOFEIYONG、HUANJINGBAOHUDENGZONGHEYINSUKAOLV。LNGCHUGUANSHUCHANGYA、DIWENDAXINGCHUGUAN。ANCHUGUANJIEGOUXINGSHIYOUDANBAORONGGUAN、SHUANGBAORONGGUAN、QUANBAORONGGUANJIMOSHIGUANDENG。QIZHONG,DANBAORONGGUAN、SHUANGBAORONGGUANJIQUANBAORONGGUANJUNWEISHUANGCENG,YOUNEIGUANHEWAIGUANZUCHENG,NEIQIAOSHI9%NIEHEJIN,WAIQIAOSHIQUANHUNNINGTU(BAOKUOGUANDING),ZAINEIWAIGUANJIANCHONGTIANYOUBAOLENGCAILIAO、GUANNEIJUERECAILIAOZHUYAOWEIPENGZHANGZHENZHUYAN、DANXINGBOLIXIANWEIZHANJIPAOMOBOLIZHUANDENG。 WEILEBIMIANRENHEBUSHOUKONGZHIDEYICHUWEIXIAN,SUOYOUYUCHUGUANLIANJIEDEYIQIHEGUANDAODOUYINGCONGGUANDINGJIERU。

广西快3BENANCHUGUANWEIQUANRONGSHI,JIEGOUCAIYONG9%NiGANGNEIGUAN、9%NiGANGHUOZHEHUNNINGTUWAIGUANHEDINGGAI、DIBAN,WAIGUANHUOHUNNINGTUQIANGDAONEIGUANYUEWEI1 ~ 2m,KEYUNXUNEIGUANLIDELNGHEQITIXIANGWAIXIELOU,TAKEYIBIMIANHUOZAIDEFASHENG。QIZUIDASHEJIYALIWEI30kPaG,QIYUNXUDEZUIDACAOZUOYALIWEI25kPaG,ZUIDISHEJIWENDUWEI-170℃。YOUYUQUANBAORONGGUANDEWAIGUANTIKEYICHENGSHOUNEIGUANXIELOUDELNGJIQITI,BUHUIXIANGWAIJIEXIELOU,QIANQUANFANGHUJULIYEYAOXIAOHENDUO

3

BOG气体压缩机

RESHENLOUCHANSHENGDEZHENGFAQITI(BOG)HECHUGUANZHURUGUOCHENGZHONGDE″HUOSAIXIAOYING″(ZHIYOUBUFENZHIHUANDEQITIHUILIUDAOCHUANZHONG)SHIDECHUGUANYALIBIRANHUIZENGJIA。ZHENGFAQITI(BOG)YASUOJIDEZUOYONGSHITONGGUOCHOUHUIDUOYUDEQITIWEICHILNGCHUGUANDEYALIHENGDINGYIJIJIANGBOGJIAYADAOXUYAODEYALISHUIPING,ZAIZHIJIEYUZAILENGNINGQIZHONGDEDIWENLNGJIECHU,SHIBOGYEHUA。

广西快3YASUOJIDEGONGYONGSHURUGUANXIANSHANGANZHUANGLEYIGEBOGJIANWENQI,TONGGUOJIANGLNGZHURUDAOBOGQILIUZHONGLAIXIANZHIXIRUWENDU。ZAIGAILNGZHURUDIANDEXIAYOU,PEIBEILEYIGEDAIYOUQIYEFENLIQIDEXIRUGUAN,FANGZHISUODAIDEYETIJINRUYASUOJIZHONG。

4

再冷凝器

ZAILENGNINGQIDEYONGTUSHITONGGUORANGBOGYULAIZICHUGUANDEDIWENLENGQUEDELNGJIECHUSHIBOGLENGNING。 LENGNINGBOGSUOXUDELNGLIUGUOZAILENGNINGQIDETIANLIAO,SHENGYUDELNGZERAOGUORONGQI。

广西快3BOGLENGNINGSUOXUDELNGHEBOGLIUJINRURONGQIDINGBUDEZAILENGNINGQI。QITILIUHEYETILIU(BINGLIU)TONGGUOBUXIUGANGHUANTIANLIAO,ZAIYETIHEZHENGQIZHIJIANCHANSHENGYIGEZHIJIEHUANREMIAN,CONGERSHIQIXIANGWANQUANLENGNING。ZHIHOU,SHUCHUDEYETIHEPANGLIUHUNHE,LNGLIUBEISHUSONGDAOLNGGAOYASHUCHUBENG, TONGGUOJIANKONGZAILENGNINGQIDEYALIHEYEMIANDUIQIJINXINGJUTICAOZUO。 RUGUOCHUXIANJINJIQINGKUANGHUOXUYAOJINXINGJIANCHA,KEJIANGZAILENGNINGQIGELI(NG、LNGRUKOUHELNGCHUKOU)。SUOYOUDELNGKERAOGUOZAILENGNINGQI,TONGSHISHUCHUYEDEYIWEICHI。

5

汽化器

LNGQIHUAQICHANGYONGREYUANYOUSHUIHERANLIAOLIANGZHONG,ZAIBENANZHONGZHUYAOCAIYONGZHONGJIANMEITISHIQIHUAQI(IFV)YIQITIGONGSIGEJIBENFUHEDEIFV,IFVJIEGOURUTU5SUOSHI。

图5:IFV结构图

广西快3BINGWANIFVYOUYIXIASANGEGUANQIAOSHIREJIAOHUANQIZUCHENG。

(1)BINGWANQIHUAQIE-1:GUDINGGUANBANGUANQIAOSHIREJIAOHUANQI。

广西快3(2)LNGQIHUAQIE-2:UXINGGUANGUANQIAOSHIREJIAOHUANQI。  

(3)NGJIAREQIE-3:GUDINGGUANBANGUANQIAOSHIREJIAOHUANQI。

LNGQIHUAQIDEGUANSHUBEICHARUDAOBINGWANQIHUAQIE-1DETONGZHUANGQIAOTIDESHANGBANBUFENZHIZHONG,ZAIE-1QIAOTIDEXIABANBUFENZHIZHONG,PAILIELECHAOGUOSANQIAN(3000)GENGUANZI,HAISHUICONGZHEIXIEGUANZIZHONGJINRU,BINGBEIYONGZUOJIAREMEIJIE。ZAIE-1DEQIAOCEZHONGZHURUBINGWAN,ZHIDAOE-1GUANSHUWANQUANCHENJINWEIZHI。TONGGUOHUXIANGLIANJIEDEZHUIXINGGUANXIANGQIAOTI,BINGWANQIHUAQIE-1HENGJIAREQIE-3XIANGLIANJIE。

广西快3LAIZIGAOYABENGSHUCHUDELNGBEIYINRUDAOLNGQIHUAQIE-2DEGUANCE,LNGZAIE-1QIAOTIZHONGBEIBINGWANQIHUA。ZAIE-2GUANZIDEWAIBIAOMIANSHANG,BINGWANZHENGQIBEILENGNING;SUIHOU,JINGGUOLENGNINGDE(YETAI)BINGWANDILUODAOE-1QIAOTIDEDIBU。ZAIE-2GUANZIDECHUKOUCHU,JINGGUOQIHUADELNG(JING)DEWENDUWEIZUIDIDE-32SHESHIDU(HAISHUIWENDUWEI7.6SHESHIDU);SUIHOU,TONGGUOWEIYUE-2HEE-3ZHIJIANDEHUXIANGLIANJIEDEGUANDAOXITONG,NGJINRUDAONGJIAREQIE-3ZHONG,YIBIANJINXINGGUORE。ZAIE-3ZHONG,NGBEIHAISHUIGUORE,RANHOUZAIWENDUWEI1SHESHIDUDEQINGKUANGXIAJINRUJILIANGGUANXIANZHONG。ZAIIFVDERUKOUHECHUKOUZHIJIAN,HAISHUIDEZUIDAWENDUJIANGWEI5SHESHIDU。ZAILNGLIULIANGZHENGCHANGSHI,YINGZHUYIJIANGTIANRANQIDECHUKOUWENDUBAOCHIZAI0℃YISHANG,HAISHUIWENDUDEJIANGDIYAOZAIYIGEKEJIESHOUDEFANWEINEI。IFVBUGONGZUODANXUYAOZHUNBEIHAOJINXINGKUAISUQIDONGSHI,YINGWEICHIJIAODILIULIANGDELNGHEHAISHUILIUDONG,YIBIANXITONGBAOLENG。

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