Valve yo kuzimya (SDV) ni iki?

Ni ikiValve yo kuzimya

Valve yo kuzimya (izwi kandi nka SDV cyangwa Emergency Shutdown Valve, ESV, ESD, cyangwaESDV) ni valve ikora kugira ngo ihagarike urujya n'uruza rw'amazi ateje akaga iyo hagaragaye ikintu giteje akaga.

ye irinda ingaruka zishobora kugaragara ku bantu, ibikoresho cyangwa ibidukikije. Vali zo kuzimya zigize sisitemu y’ibikoresho by’umutekano. Uburyo bwo gutanga uburinzi bw’umutekano bwikora iyo habonetse ikintu gishobora guteza akaga bwitwa Umutekano w’imikorere.

Ubwoko bwa Valve yo Gufunga

Ku byuma bivanze, icyuma gicayevalve z'umupirazikoreshwa nk'udupira two kuzimya (SDV). Gukoresha utupira tw'icyuma twicayeho bituma ikiguzi rusange kigabanuka iyo hatekerejwe ku ibura ry'umusaruro n'ububiko, hamwe n'ikiguzi cyo gusana utupira gituruka ku ikoreshwa rya tupira tworoheje twicayeho dufite ikiguzi gito cya mbere.

Vali zo mu bwoko bwa "rotary-through flow valves", nka vali zo mu bwoko bwa "rotary-shaft ball valves", akenshi ni vali zo mu bwoko bwa "high-recovery". Vali zo mu bwoko bwa "high-recovery" ni vali zitakaza ingufu nke bitewe n'ihindagurika rito ry'amazi. Inzira zo mu bwoko bwa "flow" ziranyuramo. Vali zo mu bwoko bwa "rotary-control valves", vali zo mu bwoko bwa "butterfly" na vali zo mu bwoko bwa "ball valves" ni ingero nziza.

Ku bijyanye no kuzimya umwuka ujya mu kirere, hakunze gukoreshwa ubwoko bubiri butandukanye, ni ukuvuga valves z'ibinyugunyugu na valves za swing gate cyangwa guillotine. Kubera ko moteri za mazutu zicana lisansi hakoreshejwe compression aho gukoresha electronic irritation, kuzimya moteri ya mazutu ntibizabuza moteri gukora.

Iyo hari hydrocarbon yo hanze, nka gaze methane, mu kirere, ishobora kwinjiza moteri ya mazutu bigatuma umuvuduko ukabije cyangwa ukabije, bishobora gutuma habaho gucika burundu no guturika. Iyo ikoreshejwe, valve za ESD zihagarika urujya n'uruza rw'umwuka kandi zikawukumira.

Ubwoko bw'imikorere

Kubera ko valve zo kuzimya zigize igice cya SIS, ni ngombwa gukoresha valve ukoresheje icyuma gitera imbaraga.

Izi actuators ubusanzwe ziba zifite imbaraga zitagira ingaruka ku mazi.

Ingero zisanzwe z'ibi ni izi:

Silindari y'umwuka

Silindari y'amazi

Actuator y'amashanyarazi

Uretse ubwoko bw'amazi, actuators nazo ziratandukanye mu buryo ingufu zibikwamo kugira ngo zikoreshe valve igihe cyose bikenewe ku buryo bukurikira:

Silindari imwe ikora– Cyangwa kugaruka kw'impeshyi aho ingufu zibikwa hakoreshejwe impeshyi ifunze

Silindari ikora kabiri– Ingufu zibikwa hakoreshejwe ingano y'amazi afunze

Ubwoko bw'imikorere ikenewe buterwa n'ikoreshwa, ibikoresho by'aho hantu ndetse n'umwanya uhari nubwo inyinshi mu mashini zikoreshwa mu gufunga amapine ari izo mu bwoko bwa "spring return" bitewe n'uko sisitemu zo kugarura amapine zitibagiwe.

Gupima Imikorere

Kurivalve zo kuzimyaikoreshwa mu bikoresho by’umutekano, ni ngombwa kumenya ko valve ishobora gutanga urwego rukenewe rw’umutekano kandi ko valve izakora igihe cyose bikenewe.

Urwego rusabwa rw'imikorere rugenwa n'Urwego rw'Ubuziranenge bw'Umutekano (SIL). Kugira ngo uyu musaruro ugerweho, ni ngombwa kugerageza valve. Hari ubwoko bubiri bw'uburyo bwo gupima buriho niIkizamini cy'ibimenyetso

– Ikizamini gikoreshwa n'intoki cyemerera umukozi kumenya niba valve iri mu "gishya" binyuze mu gupima uburyo bwose bushoboka bwo kwangirika kandi bigasaba kuzimya urugandaIkizamini cyo gusuzuma indwara

– Ikizamini cyikora kuri interineti kizagaragaza ijanisha ry’uburyo valve ishobora gucika intege. Urugero rw’ibi kuri valve yo gufunga ni ikizamini cy’igice cy’umuvuduko. Urugero rw’igikoresho gipima igice cy’umuvuduko cya mekanike.