Yintoni i-Check Valve: Isikhokelo sokugqibela sohlobo kunye nomgangatho.

Jonga isishwankathelo seValve

Ivalvu yokujonga yivalvu ezenzekelayo esebenzisa uxinzelelo lolwelo kunye nobunzima bediski ukuthintela ukuhamba okungasemva. Eyaziwa ngokuba yivalvu engabuyiyo, enendlela enye, evuselelayo, okanye eyodwa, umsebenzi wayo ophambili kukuqinisekisa ukuhamba okuhamba ngendlela enye ukukhusela iinkqubo zemibhobho kumonakalo wokubuyela umva.

Indlela iiValve zokujonga ezisebenza ngayo

Ukuhamba phambiliUxinzelelo lolwelo luphakamisa idiski, nto leyo evumela ukuba idlule.

Ukuhamba okubuyela umva: Idiski ivalwa ngoxinzelelo lomxhuzulane/ulwelo, ivala imidiya.

Izinto ezibalulekileyo kwiivalvu zokujonga

Iindawo ezibalulekileyo ziquka:

Umzimba weValve: Iipayipi ezidibanisa i-casing yangaphandle

Idiski: Icandelo leselula elivumela ulawulo lokuhamba kwamanzi

Isihlalo: Iifom zokuvala umphezulu ngediski

Intwasahlobo: Inyanzela ukuvalwa kwediski (kwiintlobo ezincediswa yintwasahlobo)

Jonga uphawu lweValve kwiDiagram yePID

Ukuqonda uphawu lwe-Check Valve

1.Isangqa: Imele umzimba wevalvu.

2.Utolo okanye Umgca Oxwesileyo: Ibonisa indlela okuhamba ngayo amanzi. Oku kubalulekile xa kufakelwa, njengoko kuqinisekisa ukuba ivalvu ibekwe ngokuchanekileyo ngaphakathi kwenkqubo.

3.Iingxelo ezongezelelweyo: Ngamanye amaxesha, amanqaku okanye iilebhile ezongezelelweyo zinokuhamba nophawu ukuze zinike ulwazi olongezelelekileyo, njengobungakanani bevalvu, izinto ezisetyenzisiweyo, okanye umlinganiselo woxinzelelo.

Jonga iMigangatho yoYilo lweeValve

Ukuthobela imithetho kuquka imigangatho yesizwe, yemizi-mveliso neyehlabathi jikelele yezixhobo, ulwakhiwo, ukusebenza, kunye nokufakelwa:

Imigangatho yeHlabathi

I-API 594: Igubungela iivalvu zokujonga i-wafer/lug zemibhobho yeoyile/yegesi

I-ASME B16.34: Iinkcukacha zoyilo lweevalvu ezijijekileyo/eziweldiweyo

I-API 6DIivalvu zepayipi (i-ball/check/gate valves) zemizi-mveliso yepetroliyam

Imigangatho yeSizwe yaseTshayina

GB/T12233-2006Iivalvu zokujonga ukuphakama kwentsimbi (≤PN40)

GB/T13932-1992Iivalvu zokujonga i-iron swing (DN50-DN1800, amanzi/umphunga)

GB/T12235-2007Iivalvu zokujonga zentsimbi zeenkqubo zepetroli ezine-T/P ephezulu

Imigangatho yeValve ekhethekileyo

CJ/T282-2008Iivalvu zokujonga ezivala kancinci zebhabhathane (iiplagi zokumpompa)

GB/T21387-2008Iivalvu zokujonga ukuhamba kwe-Axial (ukumelana nokuhamba okuphantsi)

Iimfuno zoKhetho kunye noYilo

UbungakananiUhlobo lwe-Swing lwe-≤350mm; ibhabhathane le-≥400mm

Uxinzelelo oluphezulu(≥4.0MPa): Sebenzisa iivalvu ezimbini okanye ivalvu + ukuvala okungxamisekileyo

Uvavanyo: Uvavanyo loxinzelelo lweqokobhe le-PN eliyi-1.5x; Uvavanyo lwetywina le-PN elingavuziyo eliyi-1.1x

Jonga iingenelo zeValve

Iingenelo zoYilo kunye nokuSebenza

Ukuzisebenzela: Akukho mandla angaphandle afunekayo (umxhuzulane/intwasahlobo/ulwelo oluqhutywa lulwelo)

Impendulo ekhawulezileyo: Ukuvalwa kwemizuzwana eyi-≤0.05 (iivalvu ze-vacuum) kuthintela ungcoliseko lokuhamba kwamanzi

Uyilo olunemisebenzi emininzi:

• Uhlobo lokuphakamisa: Isitywina esingcono kakhulu semidiya ecocekileyo ene-P ephezulu
• Uhlobo lokujika: Ukumelana okuphantsi kwimibhobho equlethe amasuntswana
• Iidiski ezimbini: Zincinci kwiinkqubo ezinqongopheleyo

Ukusebenza kunye noKhuseleko

• Ithintela ukuhamba okungasemva kwezinto ezisasaza imitha/izinto ezibolayo (izityalo zenyukliya/zeekhemikhali)

• Inciphisa umonakalo wesando samanzi ngeendlela zokuvala ngokukhawuleza

• Igcina ukhuseleko lwe-vacuum (10⁻⁶~10⁻⁸ Ukuvuza kwe-Pa·m³/s)

Uqoqosho kunye nokuhambelana

• Ugcino lwamandla: Akukho kusetyenziswa kwamandla rhoqo

• Uluhlu olubanzi lwezinto: Intsimbi engatyiwayo/iseramikhi/irabha yefluoro (-200°C~800°C)

• Ukusetyenziswa kwamashishini amaninzi: Iinkqubo zamanzi/ioyile/igesi/i-HVAC/iikhemikhali

Izicelo eziqhelekileyo

Ithintela ukubuya kwemveliso kwiimeko ezibalulekileyo:

• Iinkqubo zolwelo: Iindawo zokupompa, unikezelo lwamanzi oluphezulu, imigca yokutya yebhoyila

• Iikhemikhali/eziphezulu: Ukudluliselwa kwemidiya ekonakalisayo, iinkqubo zomphunga ezingama-400°C+

• Amatyala Akhethekileyo: Iimpompo zomlilo (ukuthintela ihamile yamanzi), umoya ocinezelweyo, imibhobho yeoyile

Icebiso lokukhetha: Cinga nge-media viscosity, uxinzelelo, iipatheni zokuhamba. Faka ngokuchanekileyo (umz., iintlobo zokuphakamisa ngokuthe nkqo).

Jonga uHlelo lweValve

Ngolwakhiwo

• Iivalvu zokujonga ukuphakanyiswa:

Intshukumo yediski ethe nkqo (encediswa yintwasahlobo/umxhuzulane)

Eyona ilungele i-DN≤200mm clean media (iinkqubo zamanzi)

•Iivalvu zokujonga iSwing:

Idiski ijikeleza kwi-hinge pin

Ukumelana okuphantsi kwimibhobho emikhulu

Iintlobo ezincinci: Ezifakwe i-Flanged, i-wafer, i-single-disc

•Iivalvu zokujonga iipleyiti ezimbini:

Uyilo lwe-wafer encinci

Ilungele iinkqubo zokukhusela umlilo

• Iivalvu zokujonga ukuhamba kwe-Axial:

Ukutyibilika kwidiski emgceni

Inciphisa ihamile yamanzi (imibhobho yegesi)

• Iintlobo ezikhethekileyo

I-Diaphragm: Ayikwazi ukumelana nokugqwala kwimidiya yamachiza

IbholaIinkqubo ze-High-P small-bore

Impumlo: Ulawulo lokuhamba kwamanzi oluya kwicala elinye

I-Bonnet etywiniweyo yokujonga iValve:Sebenza kwi-High Pressure (Class 900, Class 1500, Class 2500), i-High Temperature.

•Udidi lweSibini

Uqhagamshelo: I-Flanged, i-threaded, i-welded, i-wafer

Uxinzelelo: I-P ephantsi (≤1.6MPa), i-P ephezulu (≥100MPa)

Umsebenzi: Ukuthula, ukuvala kancinci, ukujikeleza kwegazi ngokuzenzekelayo