Indlela iiValve zeBhola eziLungiselelwa ngayo kwiindawo ezinobungozi zaseLwandle

Iimeko Zokusebenza Kweelwandle kunye Neemfuno Zevalvu

Iindawo zaselwandle zizisa imingeni ekhethekileyo kwiinkqubo zolawulo lolwelo, kuquka ukuvezwaukugqwala kwamanzi anetyuwa, ukunyuka koxinzelelo oluphezulu, ukuguquguquka kobushushu, kunye noxinzelelo loomatshini oluvela kumaza kunye nokungcangcazela. Ukumelana nezi meko,iivalvu zaselwandlekufuneka bahlangabezane neemfuno eziqatha:

- Ukumelana nokugqwala: Kubalulekile ukulwa namanzi anetyuwa kunye nokuvezwa ziikhemikhali.

- Ukuqina: Ukuphila ixesha elide phantsi koxinzelelo oluqhubekayo loomatshini.

- Ukuvalwa okuqinileyo kokuvuza: Kubalulekile kukhuseleko kunye nokuthobela imithetho yokusingqongileyo.

- Ukunyamezelana noxinzelelo oluphezulu: Yenzelwe ukusetyenziswa kolwandle olunzulu kunye nolwe-hydraulic.

Phakathi kweevalvu zaselwandle,iivalvu zebhola yolwandlezithandwa kakhulu ngenxa yokuthembeka kwazo kunye nokuzivumelanisa nezimo.

Uhlu lweeValve zoLwandle

Iivalvu zolwandle zahlulwe ngokwendlela eziyilwe ngayo kunye nomsebenzi wazo:

1. Iivalvu zeSango: Ulawulo lokuvula/ukucima kwimibhobho emikhulu.

2. Iivalvu zeGlobe: Ulawulo lokuhamba ngokuchanekileyo.

3. Jonga iiValvu: Nqanda ukubuya kwamanzi kwiimpompo nakwiinjini.

4. Iivalvu zeBhola: Ukucima ngokukhawuleza, ukulungiswa okuncinci, kunye nokuguquguquka.

Iivalvu zebhola yolwandleigqwesile kwizicelo ezifuna ukusebenza ngokukhawuleza kunye nokunciphisa uxinzelelo oluncinci, nto leyo eyenza ukuba zilungele ukuhanjiswa kwepetroli, iinkqubo zokupholisa, kunye nokuvalwa kweemeko ezingxamisekileyo.

Indlela iiValve zeBhola zaseMarine eziLungiselelwa ngayo kwiZicelo zaseMarine

Iivalvu zebhola ezenzelwe ukusetyenziswa elwandle ziquka izixhobo ezikhethekileyo kunye nobunjineli ukujongana neemeko ezinzima. Nazi iindlela eziphambili zokulungisa:

1. Izinto ezimelana nokugqwala

Iivalvu zeBhola zeBronze:

Ukuqonda iiValve zeBhola zeBronze API 6D

– Zenziwe ngee-alloys ze-copper-zinc (umz., i-UNS C83600), iivalvu ze-bronze ziyamelana nokugqwala kwamanzi olwandle kunye nokubola kwezinto eziphilayo.

– Ixabiso elifanelekileyo kwiinkqubo zoxinzelelo oluphantsi ukuya koluphakathi ezifana neenkqubo ze-bilge kunye ne-ballast.

Iivalvu zeBhola zeC95800:

– Ibronzi yeNickel-aluminium (UNS C95800) inika amandla angcono kunye nokumelana nokugqwala kwemingxuma/imingxunya.

– Isetyenziswa kwiindawo ezixinezelekileyo kakhulu, ezifana neenkqubo zokupholisa amanzi olwandle kunye neenkqubo ze-hydraulic.

Iivalvu zeBhola zeAluminiyam zeBronze:

– Ii-alloy zeCopper-aluminium (umz., i-UNS C95400) zibonelela ngokumelana nokukhukuliseka okumangalisayo kunye nozinzo lobushushu.

– Ilungele ukusetyenziswa kweoyile/igesi elwandle kunye nobushushu obuphezulu.

2. Iimpawu zoYilo oluqinileyo

- Uyilo lweZibuko ezipheleleyo: Inciphisa ukunqongophala kokuhamba kwamanzi kunye nokulahleka koxinzelelo.

- Izitywino eziqinisiweyo: I-PTFE okanye i-elastomeric seals ziqinisekisa ukusebenza okuqinileyo kokuvuza kwiimeko eziguquguqukayo.

- Iziqu Ezichasene Nokuqhuma: Nqanda ukuphuma kwesiqu phantsi koxinzelelo oluphezulu.

3. Ubungakanani kunye neenkcukacha zoxinzelelo

- Ubungakanani: Uluhlu oluvela¼ intshi ukuya kwi-12 intshi, evumela imibhobho kwiinjini, iimpompo, kunye nee-manifolds.

- Uvavanyo loxinzelelo:

–Iivalvu zobhedu eziqhelekileyo: Iklasi ye-150 ukuya kwiKlasi yama-300(ukuya kuthi ga kwi-750 PSI).

–Iivalvu zobhedu ze-C95800 kunye ne-aluminium: **Iklasi 600 ukuya kwiKlasi 800** (i-PSI engaphezu kwe-1,000) yezicelo zaselwandle olujulileyo.

4. Ukumelana nobushushu

- Iivalvu zeBronze kunye neC95800 zisebenza phakathi-20°C ukuya kwi-200°C(-4°F ukuya kwi-392°F).

- Izibambo zebronze ze-aluminium ukuya kuthi ga kwi260°C(500°F), ifanelekile kwiinkqubo zokukhupha umoya kunye nomphunga.

Ukusetyenziswa kweeValve zeBhola zaseMarine

- Ukudluliselwa kwamafutha kunye neoyile: Ukuvalwa kweetanki kunye nemibhobho okungenako ukuvuza.

- Iinkqubo Zokupholisa Amanzi Olwandle: Ulawulo lokuhamba kwamanzi olumelana nokugqwala.

- Iinkqubo zokuCima umlilo: Ukusebenza okuthembekileyo kwiimeko ezingxamisekileyo.

- Ulawulo lwaManzi eBallast: Ukuthobela imithetho yokusingqongileyo.

Kutheni Ukukhetha Izinto Eziphathekayo Kubalulekile?

Imekobume yolwandle enzima ifuna iivalvu ezenziweubhedu, C95800okanyeibronze yealuminiyamngenxa yabo:

- Ukumelana nokuwohloka kwamanzi anetyuwa.

- Ubuchule bokumelana nokubola kwezinto eziphilayo kunye neengcola ezirhabaxa.

- Ukuthobela imigangatho efana ne-DNV-GL, ASTM, kunye ne-MIL-SPEC.

Isiphelo

Iivalvu zebhola zaselwandle zihlengahlengiswa ngobuchule ukuze zikwazi ukumelana nobunzima bemisebenzi yaselwandle ngokusebenzisa izixhobo eziphambili, ubunjineli obuqinileyo, kunye noyilo oluchanekileyo.ubhedu, C95800okanyeiivalvu zebhola yobhedu ye-aluminium, ukukhetha uhlobo olufanelekileyo kuqinisekisa ukuhlala ixesha elide, ukhuseleko, kunye nokusebenza kakuhle kwiinkqubo zaselwandle. Soloko ubeka phambili iziqinisekiso kunye nokuhambelana kwezinto ukuze uhlangabezane neemfuno zesicelo sakho.