Njengoko sisazi, phakathi kweepleyiti ze-plate heat exchanger, i-titanium plate ikhethekile ngenxa yokumelana kwayo okuhle nokugqwala. Kwaye ekukhetheni i-gasket, i-viton gasket idume ngokuxhathisa i-asidi kunye ne-alkali kunye nezinye iikhemikhali. Ngoko ke, ngaba zingasetyenziswa kunye ukuphucula ukumelana nokugqwala kwe-plate heat exchanger?
Enyanisweni, ipleyiti yeTitanium kunye ne-viton gasket azinakusetyenziswa kunye. Kodwa kutheni? Ngumgaqo wokuchasana nokugqwala kwepleyiti yetitanium ukuba ezi zinto zimbini azinakusetyenziswa kunye, kuba ipleyiti yetitanium kulula ukwenza umaleko wefilimu ekhuselayo ye-titanium oxide exineneyo phezu komphezulu, olu maleko wefilimu ye-oxide lunokwenziwa ngokukhawuleza kwindawo equlethe ioksijini emva kokutshatyalaliswa. Kwaye oku kuvumela ukutshatyalaliswa nokulungiswa (ukubuyiswa kwakhona) kwefilimu ye-oxide ukuba kugcinwe kwimeko ezinzileyo, kukhusela izinto ze-titanium ngaphakathi kwifomu yokutshatyalaliswa okungakumbi.
Umfanekiso oqhelekileyo wokugqwala kwemingxuma
Nangona kunjalo, xa isinyithi se-titanium okanye i-alloy kwindawo equlethe i-fluorine, phantsi kwesenzo se-hydrogen ions emanzini, i-ions ze-fluoride ezivela kwi-viton gasket zisabela kunye ne-titanium yesinyithi ukuvelisa i-fluoride enyibilikayo, nto leyo eyenza i-titanium pitting. I-equation ye-reaction yile ilandelayo:
I-Ti2O3+ 6HF = 2TiF3+ 3H2O
I-TiO2+ 4HF = I-TiF4+ 2H2O
I-TiO2+ 2HF = I-TiOF2+ H2O
Izifundo zifumanise ukuba kwisisombululo se-asidi, xa uxinano lwe-ion ye-fluoride lufikelela kwi-30ppm, ifilimu ye-oxidation kumphezulu we-titanium inokutshatyalaliswa, nto leyo ebonisa ukuba nokuba uxinano oluphantsi kakhulu lwe-ion ye-fluoride luya kunciphisa kakhulu ukumelana nokugqwala kweeplate ze-titanium.
Xa isinyithi se-titanium singakhuselekanga kwi-titanium oxide, kwindawo eyomileyo equlethe i-hydrogen yokuguquka kwe-hydrogen, i-titanium iya kuqhubeka nokufunxa i-hydrogen, kwaye kwenzeka i-REDOX reaction. Emva koko i-TiH2 iveliswa kumphezulu wekristale ye-titanium, ekhawulezisa ukubola kweplate ye-titanium, yenze imifantu kwaye ikhokelele ekuphumeni kwe-plate heat exchanger.
Ke ngoko, kwi-plate heat exchanger, i-titanium plate kunye ne-viton gasket akufuneki zisetyenziswe kunye, kungenjalo kuya kukhokelela ekuboleni nasekungasebenzini kwe-plate heat exchanger.
IShanghai Heat Transfer Equipment Co.,Ltd. (SHPHE) inamava amaninzi enkonzo kushishino lwe-plate heat exchanger, kwaye ikwanazo nee-laboratory ze-physical kunye neekhemikhali ezinxulumene nazo, ezinokumisela ngokukhawuleza nangokuchanekileyo izinto ze-plate kunye ne-gasket kubathengi abakwinqanaba lokuqala lokukhetha, ukuqinisekisa ukusebenza okukhuselekileyo nokuthembekileyo kwezixhobo.
Ixesha lokuthumela: Feb-17-2022