Kwinqaku elingaphambili, sithethe ngeevalvu zesango kunye neglobe, namhlanje sidlulela kwiivalvu zebhabhathane kunye neevalvu zokujonga, ezisetyenziswa kakhulu ekucoceni amanzi.
1. Ivalvu yebhabhathane.
Ivalvu yebhabhathaneyivalvu ejikelezayo esebenzisa idiski (eyaziwa ngokuba yiplati yebhabhathane) ukuvula nokuvala ilungu ukuze ijikeleze i-90° okanye malunga ne-90° ukuvula nokuvala umjelo. Ukuhamba kwediski yevalvu yebhabhathane kuyasula, ngoko uninzi lweevalvu zebhabhathane zinokusetyenziselwa imidiya eneziqwenga eziqinileyo ezixhonyiweyo.
Iivalvu zebhabhathane ezisetyenziswa rhoqo ziquka iivalvu zebhabhathane ezifakwe i-wafe kunye neevalvu zebhabhathane ezifakwe i-flange. Ivalvu yebhabhathane yohlobo lwe-wafer isetyenziselwa ukudibanisa ivalvu phakathi kweeflange ezimbini zepayipi ngee-stud bolts, kwaye ivalvu yebhabhathane yohlobo lwe-flange ine-flange kwivalvu, kwaye iiflange kuzo zombini iziphelo zevalvu ziqhagamshelwe kwiflange yepayipi ngee-bolts.
Iimbonakalo:
1.Ubungakanani obuncinci, ubude obufutshane, isakhiwo esilula kunye nobunzima obulula.
2. Kulula ukuyisebenzisa, ivula kwaye ivala ngokukhawuleza, kufuneka ujikelezise idiski ngama-90° kuphela ukuze ivuleke kwaye ivale.
3. Ukusebenza kakuhle kokutywina nokulungisa. Ngenxa yokuba irabha isetyenziswa njengeringi yokutywina, ukucinezelwa kunye nokuqina kulungile (oko kukuthi, akuyi kuqina), ngoko ukusebenza kokutywina kulungile. . I-valve flap ingavulwa phakathi kwe-15° kunye ne-70°, kwaye ingenza ulawulo lokuhamba kwamanzi olunobuthathaka.
4. I-torque encinci yokusebenza kunye nokumelana nolwelo. Ngokwemilinganiselo, ukumelana nolwelo lweevalvu zebhabhathane kuncinci kunokwezinye iintlobo zeevalvu ngaphandle kweevalvu zebhola.
5. Ngenxa yokunqongophala kwezinto zokuvala, uxinzelelo lokusebenza kunye nomgangatho wobushushu bokusebenza kwevalvu yebhabhathane zincinci kakhulu.
2. Jonga iValve
Ukusetyenziswa kunye neempawu:
Ivalvu yokujongayivalvu esetyenziselwa ukuthintela ukubuya kwemidiya kwipayipi, ivula xa i-medium ihla ngomlambo ize ivale ngokuzenzekelayo xa i-medium ibuyela umva. Ngokuqhelekileyo esetyenziswa kwipayipi ayivumeli i-medium ukuba ihambe kwicala elichaseneyo, ukuze kuthintelwe ukubuya kwemidiya kwizixhobo nakwiindawo. Xa ipompo iyeka ukusebenza, musa ukubangela ukuguquka kwepompo ejikelezayo. Kwipayipi, jonga rhoqo iivalvu kunye neevalvu zesekethe evaliweyo ezisetyenziswa kuthotho. Oku kungenxa yokutywinwa kakubi kwevalvu yokujonga, xa uxinzelelo lwemidiya luncinci, kuya kubakho inxalenye encinci yokuvuza kwemidiya, imfuneko yeevalvu zesekethe evaliweyo ukuqinisekisa ukuvalwa kwepayipi. Ivalvu esezantsi ikwayivalvu yokujonga, kufuneka ifakwe emanzini, ifakwe ngokukodwa kwipompo ayinakuzibeka ngokwayo okanye ingabikho ipayipi yokufunxa amanzi ephumayo ngaphambili.
Ukusilela okuqhelekileyo kunye neendlela zokulinganisa ivalvu yonyango lwamanzi
Ivalvu isebenza kwimibhobho kangangexesha elithile, kuya kubakho iintlobo ngeentlobo zokusilela. Okokuqala, inani leendawo ezinxulumene nokwakheka kwevalvu, iindawo ezininzi zizinto eziqhelekileyo zokusilela. Okwesibini, ngoyilo lwevalvu, ukwenziwa kwayo, ukufakelwa kwayo, iimeko zokusebenza kwayo, iingenelo kunye neengxaki zokugcinwa kwayo. Ukusilela okuqhelekileyo kwevalvu engaqhutywanga ngumbane kwahlulwe kwiindidi ezine.
1. Ukungaphumeleli kokudlulisela
Ukusilela kwesixhobo sokudlulisa kudla ngokubonakala njengokuxinana kwesiqu sevalvu, ukusebenza okungaguquguqukiyo okanye ivalvu ayinakusebenza. Izizathu zezi: ivalvu ivalwa ixesha elide emva kokugqwala; ukufakelwa kunye nokusebenza komonakalo ongafanelekanga kwimisonto yesiqu okanye i-nut yesiqu; isango livalwa emzimbeni wevalvu zizinto zangaphandle; isango lidla ngokuvuleka isiqingatha kwaye livalwe isiqingatha, ngamanzi okanye ezinye iimpembelelo zikhokelela kwizikrufu zesiqu kunye nokungahambisani kakuhle kwentambo ye-nut yesiqu, ukukhululeka, isiganeko sokuluma; uxinzelelo lokupakisha luqinile kakhulu, lubambe isiqu; isiqu siphezulu okanye ukuvalwa kweendawo kuxinene. Ukugcinwa kufuneka kuthanjiswe iindawo zokuqhuba. Ngoncedo lwesikrufu, kunye nokucofa kancinci, ungayisusa isiganeko sokuxinana, ukugquma; yeka ukulungiswa kwamanzi okanye ukutshintshwa kwevalvu.
2. Uqhekeko lomzimba wevalvu eyonakeleyo
Izizathu zokuqhekeka komzimba wevalvu ezonakeleyo: ukuwohloka kokuxhathisa ukugqwala kwezinto zevalvu; ukuhla komgangatho wesiseko sepayipi; utshintsho loxinzelelo okanye ubushushu kwinethiwekhi yepayipi; isando samanzi; ukuvala ukusebenza okungafanelekanga kwevalvu njalo njalo. Kufuneka kususwe ngokukhawuleza izizathu zangaphandle kwaye kutshintshwe uhlobo olufanayo lweendawo zevalvu okanye iivalvu.
3. Ukuvuza kwevalvu
Ukuvuza kwevalvu kubonakala ngolu hlobo: ukuvuza kwesiseko sevalvu; ukuvuza kwendlala; ukuvuza kwegasket yeflange. Izizathu eziqhelekileyo zezi: ukuguguleka kwesiqu sevalvu (umngxuma wevalvu), ukugqwala, ukutywina imingxunya yomphezulu, ukuxobuka; ukuguga kwetywina, ukuvuza; iibholiti zeglange, iibholiti zeflange ezikhululekileyo. Ukugcinwa kuya kwanda, tshintsha indawo yokutywina; tshintsha inati entsha ukuze ulungise indawo yebholiti yokubambelela.
Nokuba loluphi uhlobo lokusilela ukuba ukulungiswa okuqhelekileyo, ukugcinwa akufikeleli ngexesha, kunokubangela inkunkuma yamanzi, okanye okubi ngakumbi, kubangele ukuba yonke inkqubo ingasebenzi. Ke ngoko, abasebenzi bokugcina iivalvu kufuneka babe kwizizathu zokusilela kweevalvu ukuze benze umsebenzi olungileyo, balawule kwaye basebenze kakuhle iivalvu, baphathe ngexesha elifanelekileyo kwaye baqinisekise ukusilela okuhlukeneyo okungxamisekileyo, ukukhusela ukusebenza okuqhelekileyo kwenethiwekhi yokucoca amanzi.
4.ukuvulwa nokuvalwa kwevalvu akulunganga
Ukuvulwa nokuvalwa kwevalvu kakubi xa ivalvu ingavulwanga okanye ivaliwe, ivalvu ayinakusebenza ngendlela eqhelekileyo. Izizathu zezi: ukubola kwesiqu sevalvu; isango livalekile okanye isango livalwe ixesha elide kwimeko yokugqwala; isango livaliwe; izinto zangaphandle zibambeke kumphezulu wokutywina okanye umngxuma wokutywina; iindawo zothumelo ziyaguga, ziyavaleka. Ukudibana nokugcinwa kwimeko engentla, iindawo zothumelo lokuthambisa; ukuvulwa nokuvalwa okuphindaphindiweyo kwevalvu kunye nempembelelo ye-hydrodynamic yezinto zangaphandle; ukutshintshwa kwevalvu.