Haufinyane tjena, workshop ea Jinbin e phethetse sehlopha sa litaelo tsa li-valve tsa bolo tse cheselitsoeng ka botlalo. Theka botlalo welded bolo valvee nka mohaho o kopantsoeng oa welded. 'Mele oa valve o entsoe ka ho cheselletsa li-hemisphere tse peli. Karolo ea mantlha ea kahare ke bolo e nang le selikalikoe ka lesoba, e hokahaneng le actuator ea kantle ka kutu ea valve. Ha e sebetsa, theflange ea bolo ea maotokutu e khannoa ho potoloha ka mohele, lebokose la gear kapa sesebelisoa sa motlakase / moea.

Melemo ea ho sebelisa indasteri ea li-valve tsa bolo e lohiloeng ka botlalo:

1. Sebopeho se ka tšeptjoang le ts'ebetso e matla ea ho tiisa

Ts'ebetso ea tjheseletso ka kakaretso e felisa likotsi tsa ho lutla ha likhokahano tsa setso tsa flange mme e loketse maemo a thata a ts'ebetso joalo ka khatello e phahameng, e tukang le ho phatloha (mohlala, khatello ea lipeipi tsa khase ea tlhaho e ka fihla ho 10MPa). Thepa ea ho tiisa ha e sebetse ebile e na le bophelo ba ts'ebeletso ea lilemo tse fetang 10, e fokotsang khafetsa ea tlhokomelo.

2. Ho hanyetsa ho phalla ho tlaase le ho phalla ho feletseng

Sekoti se pota-potileng se lumellana le bophara bo ka hare ba phala, 'me ho hanyetsa ha phallo ea bohareng ke 1/10 feela ea phala ea bolelele bo lekanang, ho fokotsa tšebeliso ea matla. E loketse ka ho khetheha bakeng sa lipalangoang tse phallang haholo (mohlala, bophara ba phala ea pipeline ea oli e tala e ka fihla ho 1200mm).

3. E hana ho bola le ho ikamahanya le maemo a thata

'Mele oa valve ea bolo e entsoeng ka tšepe e koahetsoeng ka tšepe e sa hloekang kapa carbon steel anti-corrosion coating (e kang epoxy resin), e ka thibelang ho bola ha mobu le khoholeho ea metsi a leoatle,' me e loketse maemo a rarahaneng a kang ka tlas'a lefatše le ka tlas'a metsi.

4. Ho bonolo ho sebetsa le litšenyehelo tse tlaase tsa tlhokomelo

Ho potoloha 90 ° ho ka phethela ho bula le ho koala. Ho kopantsoe le mokhoa oa ho laola othomathike, taolo e hole e ka finyelloa. Mehaho e cheselitsoeng e fokotsa likarolo tse tsamaeang, e na le sekhahla se tlase sa ho hloleha, 'me potoloho ea tlhokomelo e ka atolosoa ho feta lilemo tse hlano.

Maemo a ikhethileng a ts'ebeliso ea valve ea bolo e kentsoeng ka botlalo:

Sistimi ea lipeipi tsa sebaka se selelele

Phetiso ea khase ea tlhaho - e sebelisoang lithapong tsa kutu ea khase ea tlhaho ea lebopong (joalo ka Pipeline ea Khase e Bophirima-Bochabela) le liphaephe tsa phetiso ea khase e tsamaeang ka tlas'a metsi, e khona ho mamella khatello e phahameng le ho netefatsa ho tiisoa ha nako e telele ho thibela likotsi tsa polokeho tse bakoang ke ho lutla ha khase ea tlhaho.

Lipalangoang tsa oli e sa hloekang / lipalangoang tsa oli e hloekisitsoeng - Ho laola tsela ea phallo ea liphaephe tsa oli tse tšelang moeli, moralo o felletseng o fokotsa ho bolokoa ha oli le ho theoha ha khatello, hape o ntlafatsa ts'ebetso ea lipalangoang.

2. Likhase tsa litoropo le marang-rang a lipeipi tse futhumatsang

E patoa le ho kenngoa phapeng e kholo ea khase ea litoropong ho sebetsana le ho rarolla mobu le liphetoho tse fapaneng tsa mocheso le ho fokotsa kotsi ea ho lutla. Laola phallo ea metsi a chesang ka har'a sistimi e futhumatsang e bohareng, 'me u mamelle khatello e phahameng (1.6MPa) le mocheso o phahameng (120 ℃).

3. Sebaka sa indasteri

Indasteri ea lik'hemik'hale: Ho tsamaisa lintho tse senyang tse kang li-acid tse matla le li-alkali tse matla. Lisebelisoa tsa tšepe tse sa hloekang le meaho ea ho tiisa ka thata ea tšepe li netefatsa polokeho (joalo ka hydrochloric acid le liphaephe tsa caustic soda).

Metallurgy le matla: E ka khaola ka potlako phallo ea khase liphaepheng tsa khase ea sebōpi kapa ea laola sekhahla sa phallo ea liphaephe tsa metsi tse pholileng tsa lifeme tsa motlakase, e ikamahanya le mocheso o phahameng (ka holimo ho 300 ℃) le libaka tse lerōle.

4. Boenjiniere ba Marine le Likepe

E sebelisoa liphaepheng tsa oli tsa sethala sa kantle ho naha le lits'ebetsong tsa mafura a likepe, tse hananang le ho bola ha metsi a leoatle ebile li khona ho mamella ho thothomela ha likepe, 'me li lumellana le litekanyetso tsa machaba tse kang API 6D.

Pn16 ea bolo ea welded ka ho feletseng, e nang le ts'epo e phahameng, litšenyehelo tse tlaase tsa tlhokomelo le ho ikamahanya le maemo a mangata ho maemo a sebetsang, e fetohile karolo ea mantlha ea taolo ea phetisetso ea matla, mekhoa ea indasteri le kaho ea mehaho ea mehaho, haholo-holo e ke keng ea nkeloa sebaka ke mekhoa e meholo ea liphaephe e hlokang ts'ebetso e tsitsitseng ea nako e telele.