Iivalvu zihlala ziqhagamshelwe kwiipayipi ngeendlela ezahlukeneyo ezifana nemisonto, iiflange, iiwelding, iiclamps, kunye neeferrules. Ngoko ke, ekukhetheni indlela yokusebenzisa, ungakhetha njani?
Ziziphi iindlela zokudibanisa iivalvu kunye neepayipi?
1. Uqhagamshelo olunemisonto: Uqhagamshelo olunemisonto yindlela apho iziphelo ezimbini zevalvu zicutshungulwa zibe yimisonto yangaphakathi okanye imisonto yangaphandle ukuze idityaniswe nombhobho. Ngokubanzi, iivalvu zebhola ezingaphantsi kwee-intshi ezi-4 kunye neevalvu zeglobe, iivalvu zesango kunye neevalvu zokujonga ezingaphantsi kwee-intshi ezi-2 ikakhulu zinomsonto. Ulwakhiwo loqhagamshelo olunemisonto lulula, ubunzima bulula, kwaye ukufakwa kunye nokuqhaqha kulula ngakumbi ukugcinwa kunye nokutshintshwa. Ekubeni ivalvu iya kwanda phantsi kwempembelelo yobushushu obuphakathi kunye nobushushu obuphakathi ngexesha lokusetyenziswa, ukuqinisekisa ukusebenza kakuhle kokuvala, ii-coefficients zokwandiswa kwezinto ezimbini ekupheleni koqhagamshelo kufuneka ziqwalaselwe ngokupheleleyo. Kunokubakho imijelo emikhulu yokuvuza kwiintambo zoqhagamshelo, ngoko ke izitywini, iiteyiphu zokuvala okanye izizalisi zinokusetyenziselwa ukuvimba ezi mijelo ukwandisa ukusebenza kokuvala. Ukuba inkqubo kunye nezinto zomzimba wevalvu zinokudityaniswa, zinokutywinwa emva koqhagamshelo olunemisonto. Isondo singaba ngcono.
2. Uqhagamshelo lweFlange: Uqhagamshelo lweFlange yeyona ndlela ixhaphakileyo yoqhagamshelo kwiivalvu. Ukufakelwa kunye nokuqhaqha kulula kakhulu, kwaye uqhagamshelo lweflange luthembekile ekutywineni, nto leyo exhaphake kakhulu kwiivalvu ezinoxinzelelo oluphezulu kunye nobubanzi obukhulu. Nangona kunjalo, isiphelo seflange sinzima, kwaye ixabiso liphezulu. Ngaphezu koko, xa ubushushu budlula i-350 ℃, ngenxa yokukhululeka kweebholiti, iigaskets kunye neeflanges, umthwalo weebholiti uya kuncipha kakhulu, kwaye uqhagamshelo lweflange olunoxinzelelo olukhulu lunokuvuza, into engafanelekanga ukusetyenziswa.
3. Uqhagamshelo oludibeneyo Uqhagamshelo oludibeneyo ludla ngokuba neentlobo ezimbini zezakhiwo: ukuwelda kwe-socket kunye nokuwelda kwe-butt. Ngokubanzi, ukuwelda kwe-socket kusetyenziswa kwiivalvu ezinoxinzelelo oluphantsi. Ulwakhiwo lokuwelda lweevalvu zokuwelda ze-socket kulula ukulucubungula kwaye kulula ukulufaka. Ukuwelda kwe-butt kusetyenziswa kwivalvu enoxinzelelo oluphezulu kunexabiso eliphezulu, kwaye ukuwelda kufuneka kubekwe ngokwemigangatho yepayipi, enzima ukuyicubungula, kwaye inkqubo yokuwelda kunye nokufakela nayo iyinkimbinkimbi ngakumbi. Kwezinye iinkqubo, uvavanyo lwe-radiographic olungonakalisiyo nalo luyafuneka kwi-welding yoqhagamshelo. Xa ubushushu budlula kwi-350 °C, umthwalo wee-bolts uya kuncitshiswa kakhulu ngenxa yokukhululeka kwee-bolts, ii-gaskets kunye nee-flanges, kwaye ukuvuza kunokwenzeka kuqhagamshelo lwe-flange ngoxinzelelo olukhulu.
4. Uqhagamshelo lweClamp Ulwakhiwo loqhagamshelo lweClamp lufana neflange, kodwa ulwakhiwo lwayo lulula kwaye ixabiso eliphantsi lisetyenziswa rhoqo kwimibhobho yococeko nakwizixhobo. Imibhobho yococeko kufuneka icocwe, kwaye akuvumelekanga ukuba neentsalela ukuze kuveliswe iintsholongwane, ngoko ke uqhagamshelo lweflange kunye noqhagamshelo olunemisonto alufanelekanga, kwaye uqhagamshelo lwe-welding kunzima ukuyifaka nokuyiqhekeza. Ke ngoko, uqhagamshelo lweclamp lolona luxhaphakileyo kwimibhobho eluhlaza. Indlela yoqhagamshelo.
Ixesha lokuthumela: Septemba-21-2022