I-anti-corrosion yeI-Valve Yebhola Yethusiumzimba usekelwe ngokuyinhloko ekukhetheni okulungile kwezinto zokwakha.Nakuba kunezinto eziningi zokulwa nokugqwala, akulula ukukhetha okulungile, ngoba inkinga yokugqwala iyinkimbinkimbi kakhulu.Isibonelo, i-sulfuric acid idla kakhulu insimbi lapho ukugxila kuphansi, futhi lapho ukugxila kuphezulu, insimbi ikhiqizwa.Ifilimu ye-passivation ingavimbela ukugqwala;I-hydrogen ibonisa kuphela ukugqwala okuqinile ensimbi ngaphansi kwezinga lokushisa eliphezulu nokucindezela okukhulu.Ukusebenza kokugqwala kwe-chlorine akukuhle uma isesimweni esomile, kodwa konakala kakhulu uma kunomswakama othile, futhi izinto eziningi azikwazi ukusetshenziswa..Ubunzima bokukhetha izinto zokwakha zomzimba we-valve akukona nje ukucabangela izinkinga zokugqwala, kodwa futhi nezici ezifana nokumelana nokucindezela nokumelana nezinga lokushisa, kungakhathaliseki ukuthi kunengqondo yini ngokwezomnotho, nokuthi kulula yini ukuyithenga.Ngakho kufanele inake.

Eyesibili iwukuthatha izinyathelo zokwenziwa kolwelwesi, njengomthofu wolwelwesi, i-aluminiyamu yolwelwesi, amapulasitiki obunjiniyela bamalayini, irabha yemvelo yolwelwesi, namarabha okwenziwa ahlukahlukene.Uma izimo zabezindaba zivuma, lena indlela yokonga.

Futhi, esimweni sokucindezela okuphansi kanye nezinga lokushisa, ukusebenzisa okungeyona insimbi njengoba impahla yomzimba we-valve ngokuvamile ingaba yimpumelelo kakhulu ekuvimbeleni ukugqwala.

Ngaphezu kwalokho, ingaphandle lomzimba we-valve liphinde ligqweliswe umkhathi, futhi ngokuvamile izinto zensimbi zivikelwe ngokudweba.

Ukugqwala kwe-valve kuvame ukuqondwa njengokulimala kwensimbi ye-valve ngaphansi kwesenzo semvelo yamakhemikhali noma ye-electrochemical.Njengoba into "yokugqwala" yenzeka ekusebenzelaneni okuzenzakalelayo phakathi kwensimbi nendawo ezungezile, indlela yokuhlukanisa insimbi endaweni ezungezile noma ukusebenzisa izinto zokwenziwa ezingezona ezensimbi kugxilwe ekuvimbeleni ukugqwala.

Umzimba wevalvu (kuhlanganise nebhonethi) wevalvu uthatha ingxenye enkulu yesisindo sevalvu futhi uhlala uthintana nendawo ephakathi nendawo.Ngakho-ke, ukukhethwa kwe-valve kuvame ukusekelwe ezintweni zomzimba we-valve.

Ukugqwala komzimba we-valve akuyona into engaphezu kwezinhlobo ezimbili, okuyi-chemical corrosion kanye ne-electrochemical corrosion.Izinga lokugqwala kwalo lincike ezingeni lokushisa, ingcindezi, izakhiwo zamakhemikhali ze-medium kanye nokumelana nokugqwala kwempahla yomzimba ye-valve.Izinga lokugqwala lingahlukaniswa ngamaleveli ayisithupha:

1. Ukumelana nokugqwala okuphelele: izinga lokugqwala lingaphansi kuka-0.001 mm/ngonyaka;

2. Imelana kakhulu nokugqwala: izinga lokugqwala lingu-0.001 kuya ku-0.01 mm/ngonyaka;

3. Ukumelana nokugqwala: izinga lokugqwala liyi-0.01 kuya ku-0.1 mm / ngonyaka;

4. Ikwazi ukumelana nokugqwala: izinga lokugqwala lingu-0.1 kuya ku-1.0 mm/ngonyaka;

5. Ukumelana nokugqwala okungalungile: izinga lokugqwala liyi-1.0 kuya ku-10 mm / ngonyaka;

6. Ayimelani nokugqwala: izinga lokugqwala likhulu kuno-10 mm/ngonyaka.