Ivalvu yesango le-hydraulic wedge DN400 PN25

1. Inkcazo kunye neempawu eziphambili

I-Hydraulic Wedge Gate Valve yivalvu yokuhamba ethe tyaba apho idiski (isango) elimile okwe-wedge (isango) iphakanyiswa okanye yehliswa yi-hydraulic actuator ukulawula ukuhamba kolwelo.

Iimpawu eziphambili zolu bungakanani kunye neklasi:

• Uyilo lweBore epheleleyo: Ububanzi bangaphakathi buhambelana nombhobho (DN400), nto leyo ebangela ukwehla koxinzelelo oluphantsi kakhulu xa luvuliwe ngokupheleleyo kwaye ivumela ukutyibilika kwemibhobho.
• Ukuhamba kweendlela ezimbini: Kufanelekile ukuhamba kweendlela ezimbini.
• Isiqu Esinyukayo: Isiqu siyaphakama njengoko ivalvu ivulwa, nto leyo ebonisa ngokucacileyo indawo yevalvu.
• Ukutywina kweMetal-to-Metal: Ngokwesiqhelo kusetyenziswa i-wedge kunye neeringi zesihlalo eziqinileyo (umz., ngeStellite) ukukhukuliseka kunye nokumelana nokuguguleka.
• Ulwakhiwo Oluqinileyo: Lwenzelwe ukujongana noxinzelelo oluphezulu kunye namandla, nto leyo ebangela umzimba onzima nohlala ixesha elide, odla ngokuba wenziwe ngentsimbi exonxiweyo okanye eyenziwe ngesinyithi.

2. Izinto eziphambili

1. Umzimba: Isakhiwo esiphambili esinoxinzelelo, esenziwe ngeCarbon Steel (WCB) okanye iStainless Steel (CF8M/316SS). Iziphelo ezijijekileyo (umz., iPN25/ASME B16.5 Class 150) zisemgangathweni kwiDN400.
2. Ibhonethi: Ibotshelelwe emzimbeni, igcina isiqu kwaye inika umda woxinzelelo. Ibhonethi ende idla ngokusetyenziselwa iinjongo zokukhusela ubushushu.
3. I-Wedge (Isango): Inxalenye yokutywina isitshixo. Kwi-PN25, i-Flexible Wedge ixhaphakile. Ine-cut okanye i-groove ejikeleze umjikelezo wayo evumela i-wedge ukuba igobe kancinci, iphucula ukutywina kwaye ihlawulele utshintsho oluncinci ekulungelelanisweni kwesihlalo ngenxa yokwanda kobushushu okanye uxinzelelo lwepayipi.
4. Isiqu: I-shaft enemisonto enamandla aphezulu (umz., i-SS420 okanye i-17-4PH Stainless Steel) edlulisela amandla ukusuka kwi-actuator ukuya kwi-wedge.
5. Iiringi Zesihlalo: Iiringi ezinobuso obuqinileyo ezicinezelweyo okanye ezidityanisiweyo emzimbeni apho i-wedge ivala khona. Zenza ukuba ivaleleke ngokuqinileyo.
6. Ukupakisha: Itywina (edla ngokuba yigrafiti yobushushu obuphezulu) ejikeleze isiqu, ekwibhokisi yokuzalisa, ukuthintela ukuvuza kwendalo.
7. I-Hydraulic Actuator: I-actuator ye-piston okanye i-scotch yoke esebenza ngoxinzelelo lwe-hydraulic (ngesiqhelo ioyile). Inika i-torque/thrust ephezulu efunekayo ukuze kusebenze ivalvu enkulu ye-DN400 ngokuchasene noxinzelelo oluphezulu lomahluko.

3. Umgaqo Wokusebenza

• Ukuvulwa: Ulwelo lwe-hydraulic lufakwa kwi-actuator, luhambisa i-piston. Olu tshintsho luguqulwa lube yintshukumo ejikelezayo (i-scotch yoke) okanye i-linear (i-linear piston) ejikeleza i-valve stem. I-stem ingena kwi-wedge, iyiphakamise ngokupheleleyo kwi-bonnet, ingayiphazamisi indlela yokuhamba.
• Ukuvala: Ulwelo lwe-hydraulic lufakwa kwicala elichaseneyo le-actuator, lubuyisela umva intshukumo. Isiqu siyajikeleza size sityhale i-wedge siye kwindawo evaliweyo, apho icinezelwa khona ngokuqinileyo kwiindandatho ezimbini zesihlalo, nto leyo eyenza isitywino.

Inqaku Elibalulekileyo: Le valve yenzelwe ukwahlukanisa (ivuleke ngokupheleleyo okanye ivalwe ngokupheleleyo). Ayifanele isetyenziswe ekulawuleni ukugoba okanye ukuhamba kwamanzi, njengoko oku kuya kubangela ukungcangcazela, ukucaphuka, kunye nokukhukuliseka ngokukhawuleza kwe-wedge kunye nezihlalo.

4. Izicelo eziqhelekileyo

Ngenxa yobukhulu bayo kunye nomlinganiselo woxinzelelo, le valve isetyenziswa kwizicelo zoshishino ezifuna kakhulu:

• Iinkonzo Zokuhambisa Nokuhambisa Amanzi: Ukwahlulahlula iindawo zemibhobho emikhulu.
• Izityalo zoMbane: Iinkqubo zamanzi okupholisa, imigca yamanzi okuphakela.
• Amanzi eNkqubo yoShishino: Izityalo ezinkulu zemizi-mveliso.
• Izityalo zokususa ityuwa: Imigca ye-reverse osmosis (RO) enoxinzelelo oluphezulu.
• Ukumbiwa kwemigodi kunye nokucutshungulwa kwezimbiwa: Iipayipi zedaka (ezinokukhethwa kwezinto ezifanelekileyo).

5. Izinto eziluncedo nezingalunganga

6. Izinto ezibalulekileyo ekufuneka ziqwalaselwe xa kukhethwa kwaye kusetyenziswa

• Ukukhetha Izinto: Thelekisa umzimba/i-wedge/izinto zesihlalo (i-WCB, i-WC6, i-CF8M, njl.njl.) nenkonzo yolwelo (amanzi, ukubola, ubushushu).
• Uqhagamshelo Lokuphela: Qinisekisa ukuba imigangatho yeflange kunye nobuso (RF, RTJ) zihambelana nombhobho.
• Iyunithi yamandla eHydraulic (HPU): Ivalvu ifuna iHPU eyahlukileyo ukuze ivelise uxinzelelo lwehydraulic. Cinga ngesantya sokusebenza esifunekayo, uxinzelelo, kunye nolawulo (lwendawo/olukude).
• Imo Yokhuseleko Olungaphumeleliyo: I-actuator ingachazwa njenge-Fail-Open (FO), Fail-Closed (FC), okanye Fail-in-Last-Position (FL) ngokuxhomekeke kwiimfuno zokhuseleko.
• Ivalvu Yokudlula Ngokuhamba: Kwizicelo zoxinzelelo oluphezulu, ivalvu encinci yokudlula ngokuhamba (umz., iDN50) idla ngokufakelwa ukulinganisa uxinzelelo kwi-wedge ngaphambi kokuvula ivalvu ephambili, nto leyo enciphisa i-torque yokusebenza efunekayo.

Ngamafutshane, iHydraulic Wedge Gate Valve DN400 PN25 ngumsebenzi onzima nosebenzayo wokumisa okanye ukuqala ngokupheleleyo ukuhamba kwamanzi kwimibhobho emikhulu, enoxinzelelo oluphezulu. Ukusebenza kwayo nge-hydraulic kwenza ukuba ifaneleke kwiindawo zokwahlulwa ezibalulekileyo ezikude okanye ezenzekelayo.