I-Tubesheet Steel forging ye-Heat Exchanger
Kwizibalo zoyilo lwe-fixed tube sheet heat exchangers, ukuba kukho imeko apho uxinzelelo lwe-axial lwe-shell, uxinzelelo lwe-axial lwe-heat exchange tube, okanye amandla okutsala phakathi kwe-heat exchange tube kunye ne-tube sheet azikwazi ukuhlangabezana neemfuno zamandla (okanye ukuzinza), kuba yimfuneko ukufaka i-expansion joint. Kwezinye iimeko, emva kokumisela ubukhulu be-tube sheet, amandla e-tube sheet asenokunganeli ngaphandle kwe-expansion joint. Nangona kunjalo, ngokongeza i-expansion joint, ubukhulu be-tube sheet bunokuhlangabezana neemfuno. Kwiimeko ezinjalo, isigqibo sokufaka i-expansion joint kufuneka sisekelwe kuvavanyo olupheleleyo lokusetyenziswa kwezinto, ubunzima bokuvelisa, ukhuseleko, kunye nemiphumo yezoqoqosho.
Uhlobo oluqhelekileyo lwejoyinti yokwandisa kwii-fixed tube sheet exchangers yijoyinti yokwandisa enomfanekiso ka-U, exineneyo, elula ngesakhiwo, eneempawu ezilungileyo zokuhlawula, kwaye ixabisa kancinci. Ngenxa yokwanda kobukhulu bezixhobo zeekhemikhali kunye nezityalo zamandla, ububanzi bee-tube sheets buye baba bukhulu, ububanzi obuvela kwi-4m ukuya kwi-5m buqhelekile. Ii-tube sheets ezinkulu ziphawulwa linani elikhulu leemingxuma ezincinci ezixineneyo, ezinzulu ezineemfuno zokuchaneka okuphezulu kunye nokucoceka.
Iishiti zeetyhubhu zisetyenziswa kakhulu kumashishini afana nezitshintshi zobushushu zegobolondo kunye neetyhubhu, iibhoyila, iinqanawa zoxinzelelo, iiturbines, kunye neenkqubo ezinkulu zomoya opholileyo. Zisetyenziswa kakhulu ukuxhasa nokulungisa iityhubhu kwiikhonteyina zeekhemikhali, ezifana nezitshintshi zobushushu zegobolondo kunye neetyhubhu, iinqanawa zoxinzelelo, iibhoyila, ii-condenser, iinkqubo zomoya opholileyo eziphakathi, ii-evaporators, kunye nezityalo zokukhupha ityuwa emanzini olwandle. Izinto zesinyithi zeeshiti zeetyhubhu aziboneleli nje kuphela ngokuqina okuphezulu kodwa zikwabonelela ngeempawu ezilungileyo zokuqhuba ubushushu.
Ngexesha lokwenziwa kwezinto zokutshintsha ubushushu zegobolondo kunye neetyhubhu, ukuwelda kweshiti yetyhubhu kunye neetyhubhu ngokuqhelekileyo kwenziwa kusetyenziswa ukuwelda kwesinyithi esikhuselweyo ngesandla, okukhokelela ekubeni kubekho iziphene kwimo ye-weld, ezinje ngokuxinana, ii-pores, kunye nezinto ezibandakanyiweyo, kunye nokusasazwa okungalinganiyo koxinzelelo lwe-weld. Xa kusetyenziswa, iindawo zeshiti yetyhubhu zihlala zidibana namanzi okupholisa emizi-mveliso, okunokubangela ukubola kweshiti yetyhubhu kunye nee-welds ngenxa yokungcola, iityuwa, iigesi, kunye neentsholongwane ezikhoyo emanzini okupholisa emizi-mveliso—oku kwaziwa ngokuba yi-electrochemical corrosion.
Uphando lubonisa ukuba amanzi emizi-mveliso, nokuba ngamanzi acocekileyo okanye olwandle, aqulethe ii-ion ezahlukeneyo kunye neoksijini enyibilikisiweyo, kunye nokuguquguquka koxinzelelo lwee-ion ze-chlorine kunye neoksijini ezidlala indima ebalulekileyo kwimo yokubola kweesinyithi. Ukongeza, ubunzima besakhiwo sesinyithi bunokuchaphazela imo yokubola. Ke ngoko, iintlobo eziphambili zokubola kweeshiti zeetyhubhu kunye nee-welds zeetyhubhu kukubola okuneemingxuma kunye nokubola kwemingxuma.
Ndiyathemba ukuba olu guqulelo luza kudlulisela ngokuchanekileyo ulwazi lobuchwephesha olunikileyo.