I-Hydraulic wedge gate valve DN400 PN25

1. Incazelo kanye nezici ezibalulekile

I-Hydraulic Wedge Gate Valve iyi-linear motion valve lapho i-disc (isango) emise okwe-wedge iphakanyiswa noma yehliswa yi-hydraulic actuator ukulawula ukugeleza koketshezi.

Izici Eziyinhloko zalolu sayizi kanye nekilasi:

• Umklamo Webhore Eligcwele: Ububanzi bangaphakathi buhambisana nepayipi (DN400), okuholela ekwehleni komfutho ophansi kakhulu uma livuliwe ngokugcwele futhi kuvumela ukugoba kwamapayipi.
• Ukugeleza Okuqondene Nezinhlangothi Ezimbili: Kufanelekile ukugeleza kunoma yiluphi uhlangothi.
• Isiqu Esikhuphukayo: Isiqu siyaphakama njengoba ivalvu ivulwa, okunikeza isibonakaliso esicacile sendawo yevalvu.
• Ukuvala Okusuka Kunsimbi Kuya Kunsimbi: Ngokuvamile kusebenzisa indandatho ye-wedge kanye nesihlalo esiqinile (isb., ene-Stellite) ukuze kukhuculuke futhi kumelane nokuguguleka.
• Ukwakhiwa Okuqinile: Kwenzelwe ukusingatha ukucindezeleka okukhulu namandla, okuholela emzimbeni osindayo nohlala isikhathi eside, ngokuvamile owenziwe ngensimbi ehlanganisiwe noma eyenziwe ngobumba.

2. Izingxenye Eziyinhloko

1. Umzimba: Isakhiwo esiyinhloko esiqukethe ingcindezi, ngokuvamile esenziwe nge-Carbon Steel (WCB) noma i-Stainless Steel (CF8M/316SS). Iziphetho ezigobile (isb., i-PN25/ASME B16.5 Class 150) ziyizinga elijwayelekile le-DN400.
2. Ibhonethi: Iboshwe emzimbeni, igcina isiqu futhi inikeza umngcele wokucindezela. Ngokuvamile ibhonethi ende isetshenziselwa izinjongo zokuvikela ukushisa.
3. I-Wedge (Isango): Ingxenye yokuvala ukhiye. Ku-PN25, i-Flexible Wedge ivamile. Ine-cut noma i-groove ezungeze umjikelezo wayo evumela i-wedge ukuthi igobe kancane, ithuthukise ukuvala futhi ikhokhele izinguquko ezincane ekuqondeni kwesihlalo ngenxa yokwanda kokushisa noma ukucindezeleka kwepayipi.
4. Isiqu: Ishafti enamandla amakhulu enentambo (isb., i-SS420 noma i-17-4PH Stainless Steel) edlulisela amandla kusuka ku-actuator kuya ku-wedge.
5. Izindandatho Zesihlalo: Izindandatho ezinobuso obuqinile ezicindezelwe noma ezifakwe ngentambo emzimbeni lapho i-wedge ivala khona. Zidala ukuvala okuqinile.
6. Ukupakisha: Isivalo (ngokuvamile i-graphite yokushisa okuphezulu) esizungeze isiqu, esifakwe ebhokisini lokugxusha, ukuvimbela ukuvuza endaweni ezungezile.
7. I-Hydraulic Actuator: I-actuator ye-piston noma ye-scotch yoke esebenza ngengcindezi ye-hydraulic (ngokuvamile uwoyela). Inikeza i-torque/i-thrust ephezulu edingekayo ukuze kusebenze i-valve enkulu ye-DN400 ngokumelene nengcindezi ephezulu yomehluko.

3. Isimiso Sokusebenza

• Ukuvulwa: Uketshezi lwe-hydraulic lufakwa ku-actuator, luhambisa i-piston. Lokhu kunyakaza kuguqulwa kube ukunyakaza okujikelezayo (i-scotch yoke) noma okuqondile (i-linear piston) okujikeleza isiqu se-valve. Isiqu singena ku-wedge, siphakamise ngokuphelele ku-bonnet, sivale indlela yokugeleza.
• Ukuvala: Uketshezi lwe-hydraulic lufakwa ohlangothini oluphambene lwe-actuator, lubuyisela emuva ukunyakaza. Isiqu siyajikeleza futhi sisunduze i-wedge siye endaweni evaliwe, lapho icindezelwa khona ngokuqinile emasongweni amabili esihlalo, okwenza kube uphawu.

Inothi Elibalulekile: Le valve yenzelwe ukuhlukaniswa (ivuleke ngokuphelele noma ivalwe ngokuphelele). Akufanele isetshenziswe ekucindezeleni noma ekulawuleni ukugeleza, njengoba lokhu kuzobangela ukudlidliza, ukugoba, kanye nokuguguleka okusheshayo kwe-wedge nezihlalo.

4. Izicelo Ezijwayelekile

Ngenxa yobukhulu bayo kanye nesilinganiso sayo sokucindezela, le valve isetshenziswa ezinhlotsheni zezimboni ezidinga kakhulu:

• Amapayipi Okuhambisa Nokusatshalaliswa Kwamanzi: Ukuhlukanisa izingxenye zamapayipi amakhulu.
• Izitshalo Zikagesi: Izinhlelo zamanzi okupholisa, imigqa yamanzi okuhambisa amanzi.
• Amanzi Enqubo Yezimboni: Izitshalo ezinkulu zezimboni.
• Izitshalo Zokususa Usawoti: Imigqa ye-osmosis ephindaphindayo (RO) ecindezelwe kakhulu.
• Ukumba kanye Nokucubungula Amaminerali: Amapayipi e-slurry (ngokukhethwa kwezinto ezifanele).

5. Izinzuzo kanye nokungalungi

6. Izinto Ezibalulekile Okufanele Zicatshangelwe Ngokukhetha Nokusebenzisa

• Ukukhetha Izinto: Qondanisa izinto zomzimba/i-wedge/isihlalo (i-WCB, i-WC6, i-CF8M, njll.) nesevisi yoketshezi (amanzi, ukugqwala, izinga lokushisa).
• Ukuxhumeka Kokuphela: Qinisekisa ukuthi amazinga e-flange kanye nobuso (RF, RTJ) kufana nephayiphi.
• Iyunithi Yamandla E-Hydraulic (HPU): I-valve idinga i-HPU ehlukile ukuze ikhiqize ingcindezi ye-hydraulic. Cabanga ngesivinini sokusebenza esidingekayo, ingcindezi, kanye nokulawula (kwendawo/kude).
• Imodi Ephephile Yokwehluleka: I-actuator ingachazwa njenge-Fail-Open (FO), Fail-Closed (FC), noma Fail-in-Last-Position (FL) kuye ngezidingo zokuphepha.
• I-By-Pass Valve: Ngezinhlelo zokusebenza ezisebenzisa umfutho ophezulu, i-by-pass valve encane (isb., i-DN50) ivame ukufakwa ukuze ilinganise ingcindezi kuyo yonke i-wedge ngaphambi kokuvula i-valve eyinhloko, okunciphisa i-torque yokusebenza edingekayo.

Ngamafuphi, i-Hydraulic Wedge Gate Valve DN400 PN25 iyindlela yokusebenza ephezulu, esebenza kanzima yokumisa noma ukuqala ngokuphelele ukugeleza kwamanzi emapayipini amakhulu, anomfutho ophezulu. Ukusebenza kwayo kwe-hydraulic kwenza ifaneleke ezindaweni zokuhlukanisa ezikude noma ezenzakalelayo.