Kusvika pari zvino, maitiro ekushandisa cryogenic anoda kuvharwa kwemavharuvhu maviri agara achishandisa mhando mbiri dzemavharuvhu, kureva mavharuvhu eglobe nemavharuvhu ebhora akagadziriswa/mavharuvhu ebhora akagadziriswa pamusoro. Zvisinei, nekubudirira kwekugadzirwa kwevharuvhu yebhora rebhora re cryogenic rine nzira mbiri, vagadziri vehurongwa vakawana sarudzo inokwezva kupfuura mavharuvhu ebhora echinyakare-mavharuvhu ebhora anoyangarara. Ine mwero wepamusoro wekuyerera kwemvura, haina muganho pagwara rekuyerera kwemvura uye gwara rekuvhara mvura, uye inogona kushanda zvakachengeteka mumamiriro ezvinhu asinganzwisisike. Uye saizi yacho idiki, huremu hwayo hwakareruka, uye chimiro chayo chiri nyore.
Zviitiko zvekushandiswa kwemagetsi zvinoda mavharuvhu zvinosanganisira nzvimbo inopinzwa/inoburitswa matangi ekuchengetera ekuzadza nekuburitsa, mapaipi asina chinhu anomanikidzwa, gasification nekunyungudutsa, mapaipi ane mabasa akawanda ehurongwa hwakasiyana-siyana muzviteshi zveLNG terminal, masisitimu ekutumira, uye matangi, Distribution systems, pombi dzemvura nenzvimbo dzekuzadza mafuta eLNG, pamwe nemavharuvhu egasi rechisikigo (GVUs) ane chekuita neinjini dzemafuta maviri muzvikepe.
Muzviitiko zvataurwa pamusoro apa, mavharuvhu ekudzima ane nzira mbiri anowanzo shandiswa kudzora nekudzima mvura yepakati. Zvichienzaniswa nedzimwe mhando dzakadai semavharuvhu ebhora, vane matambudziko akati wandei:
Kuyerera kwemvura (Cv) kwakaderera - izvi zvinokanganisa kusarudzwa kwehukuru hwepombi dzese dzakakodzera uye zvichave dambudziko rinogona kukanganisa kugona kwenzira yekuyerera kwemvura.
· Kuda kugadzirisa ma "linear actuators" kuti aite mabasa ekuvhara nekudzora - zvichienzaniswa nema "rectangular rotary actuators" anoshandiswa kudzora nekushandisa mavharuvhu ebhora nemamwe mavharuvhu anotenderera erectangular, rudzi urwu rwemuchina rwune chimiro chakaoma uye runodhura. Mutengo nekuoma kwechimiro cheseti yakazara yemidziyo yevharuvhu neye "actuator" kwakakurumbira zvikuru.
· Kana vharuvhu yekudzima ikashandiswa kuita kuti pave nekushanda kwekukurumidzira kwekudzimwa kwemagetsi kunodiwa nemasisitimu mazhinji eLNG, kuomarara kwacho kuchawedzera.
Kune zvivako zvidiki zveLNG (SSLNG), matambudziko ari pamusoro apa achave pachena, nekuti masisitimu aya anofanira kunge ari madiki, asingadhuri zvakanyanya, uye aine simba guru rekuyerera kwemvura kuitira kupfupisa kutenderera kwekurodha nekuburitsa zvinhu.
Kuyerera kwevharuvhu yebhora kwakakwira kupfuura kwevharuvhu yepasi rose ine saizi imwe chete. Nemamwe mashoko, idiki muhukuru pasina kukanganisa mwero wekuyerera. Izvi zvinoreva kuti saizi, huremu uye mutengo wehurongwa hwese hwemapombi uye kunyangwe hurongwa hwese zvakaderedzwa zvakanyanya. Panguva imwe chete, zvinogona kuwedzera zvakanyanya kudzoka kwemari (ROI) yehurongwa hwakabatana.
Ehe, mavharuvhu ebhora anoyerera akajairika ane nzira imwe chete, izvo zvisina kukodzera mamiriro ezvinhu ataurwa pamusoro apa anoda kuvharwa kwemavharuvhu nenzira mbiri.
Nzira imwe chete vs nzira mbiri
Sezvakaratidzwa muMufananidzo 1, vharuvhu yebhora inoyerera yemamiriro e cryogenic ine buri rekubvisa kumanikidzwa parutivi rwebhora revharuvhu kudzivirira kumanikidzwa kuungana nekukwira kana medium ichichinja chikamu. Kana vharuvhu iri panzvimbo yakavharwa, gasi rechisikigo rakanyungudutswa rakavharirwa mugomba remuviri wevharuvhu rinotanga kupwanyika nekukura, uye huwandu hunogona kusvika ka600 kupfuura huwandu hwepakutanga mushure mekuwedzerwa zvizere, izvo zvinogona kukonzera vharuvhu kuputika. Kuti vadzivise mamiriro aya, mavharuvhu mazhinji ebhora anoyerera akashandisa nzira yekurerutsira kumanikidzwa kwekuvhura kwemvura. Nekuda kweizvi, mavharuvhu ebhora echinyakare haagone kushandiswa mumamiriro ezvinhu anoda kuvharwa kwenzira mbiri.
Uye iyi ndiyo nguva iyo vharuvhu yebhora inoyerera ine nzira mbiri inogona kuratidza hunyanzvi hwayo. Musiyano uripo pakati pevharuvhu iyi nevharuvhu yemagetsi ine nzira imwe chete ndewekuti:
· Hapana gomba riri pavharuvhu rekuderedza kumanikidzwa
· Inogona kuvhara mvura kumativi ese
· Hapana gomba riri pavharuvhu rekuderedza kumanikidzwa
· Inogona kuvhara mvura kumativi ese
Muvharuvhu yebhora inoyerera ine nzira mbiri, chigaro chevharuvhu chine nzira mbiri chinotsiva nzira yekubvisa kumanikidzwa kwekuvhura kwemvura. Chigaro chevharuvhu chine nzira mbiri chinogona kuburitsa kumanikidzwa kwakanyanya kunokonzerwa negasi rechisikigo rakanyungudutswa rakavharirwa mugomba remuviri wevharuvhu, nokudaro zvichidzivirira vharuvhu kuti isaputika, sezvakaratidzwa muMufananidzo 2.
Pamusoro pezvo, chigaro chevharuvhu chine chitubu chinobatsira kuchengetedza vharuvhu iri pa torque yakaderera uye kuita kuti ishande zvakanaka mumamiriro ezvinhu ane cryogenic.
Vharuvhu yebhora inoyerera ine nzira mbiri ine rin'i yekusimbisa girafu yechipiri, kuitira kuti vharuvhu ive nebasa rekuchengetedza moto. Kunze kwekunge tsaona yakaipa ikakonzera kuti zvikamu zvepolymer zvevharuvhu zvitsve, chisimbiso chechipiri hachizobata nechinhu chacho. Kana tsaona ikaitika, chisimbiso chechipiri chichaita basa rekudzivirira moto.
Mabhenefiti emavharuvhu ane nzira mbiri
Kana tichienzanisa nemavharuvhu eglobe, mavharuvhu ebhora akasimbiswa uye akaiswa pamusoro, vharuvhu yebhora re cryogenic float ine mabhenefiti ese evharuvhu yebhora ine flow coefficient yakawanda, uye hapana muganho pagwara remvura nesealing. Inogona kushandiswa zvakachengeteka mumamiriro ezvinhu e cryogenic; saizi yacho idiki uye chimiro chayo chiri nyore. Actuator inoenderana nayo iri nyorewo (kutenderera kwekona yekurudyi) uye yakaderedzwa. Mabhenefiti aya anoreva kuti sisitimu yese idiki, yakareruka, uye inodhura zvishoma.
Kana tichienzanisa nemavharuvhu eglobe, mavharuvhu ebhora akasimbiswa uye akaiswa pamusoro, vharuvhu yebhora re cryogenic float ine mabhenefiti ese evharuvhu yebhora ine flow coefficient yakawanda, uye hapana muganho pagwara remvura nesealing. Inogona kushandiswa zvakachengeteka mumamiriro ezvinhu e cryogenic; saizi yacho idiki uye chimiro chayo chiri nyore. Actuator inoenderana nayo iri nyorewo (kutenderera kwekona yekurudyi) uye yakaderedzwa. Mabhenefiti aya anoreva kuti sisitimu yese idiki, yakareruka, uye inodhura zvishoma.
Tafura 1 inoenzanisa vharuvhu yebhora inoyerera ine nzira mbiri nemamwe mavharuvhu ane mabasa akafanana kubva pamaonero ekugadzirisa, saizi, huremu, torque level, kuoma kwekudzora, uye mutengo wese, uye inopfupikisa zvakanakira nezvayakaipira.
Kana nzvimbo diki yeLNG ikatyora mutemo wayo uye ikashandisa vharuvhu yebhora ine nzira mbiri, inogona kupa mukana wakazara kune zvakanakira zvevharuvhu yebhora, kureva kuti, dhayamita yakazara, mwero wekuyerera kwepamusoro uye mwero wekubuda kwepombi wakakwira. Zvichitaurwa, inogona kutsigira mapaipi madiki uku ichichengetedza mwero wekuyerera wakafanana, saka inogona kuderedza huwandu hwese, huremu, uye kuoma kwehurongwa, uye inogonawo kuderedza mutengo wehurongwa hwepombi.
Nyaya yapfuura yakaburitsa zvakanakira kushandiswa sevharuvhu inodzima. Kana ikashandiswa sevharuvhu yekudzora, zvakanakira zvichava pachena. Kana vharuvhu yebhora inotenderera yekona yekurudyi ikashandiswa, kuoma kwekit yekuzvigadzira yega yevharuvhu kuchaderera zvakanyanya, saka yave chinhu chekusarudza che cryogenic system.
Chinhu chinonyanya kukosha mukit ye automation yataurwa pamusoro apa ivharuvhu yebhora inoyerera ine nzira mbiri iri nyore uye inoshanda, uye actuator inotenderera ine chimiro chakareruka uye inoshanda zvakanaka.
Muchidimbu, vharuvhu yebhora inoyerera ine nzira mbiri ine kukosha "kwekupandukira" kune sisitimu yemapaipi emvura inoyerera. Munzvimbo diki dzeLNG, inogona kupa mukana wakazara kune zvakanakira zvayo.
Mumakore mashoma apfuura, chigadzirwa ichi chitsva chakasimbiswa mukushandiswa kunoshanda, zvichiratidza kuti chakakosha pamutengo wepurojekiti uye mashandiro akavimbika ehurongwa kwenguva refu.
Nguva yekutumira: Chikumi-17-2021