Ukuvimbela Nokwelashwa Kwe-Butterfly Valve Corrosion

Kuyini ukugqwalaizivalo uvemvane?

Ukugqwala kwamavalvu ovemvane kuvame ukuqondwa njengokulimala kwensimbi yevalvu 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 weuvemvane valve(kuhlanganise nesembozo se-valve) ithatha ingxenye enkulu yesisindo se-valve futhi ixhumana njalo ne-medium, ngakho-ke i-valve ye-butterfly ivame ukukhethwa ezintweni zomzimba.

Kunezinhlobo ezimbili kuphela ze-valve body corrosion ofizivalo uvemvane, okungukuthi ukugqwala kwamakhemikhali kanye nokugqwala kwe-electrochemical. Izinga lokugqwala kwalo linqunywa izinga 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. Ukumelana nokugqwala okukhulu: izinga lokugqwala 0.001-0.01 mm/ngonyaka;

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

4. Ukumelana nokugqwala okuphezulu: izinga lokugqwala 0.1-1.0 mm / ngonyaka;

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

6. Ukumelana nokungagqwali: izinga lokugqwala likhulu kuno-10 mm/ngonyaka.

Indlela yokuvimbela ukugqwala kweizivalo uvemvane?

I-anti-corrosion yomzimba we-valve we-valve uvemvane ikakhulukazi ngenxa yokukhethwa okulungile kwezinto. Nakuba ulwazi mayelana ne-anti-corrosion lucebile kakhulu, akulula ukukhetha okulungile, ngoba inkinga yokugqwala iyinkimbinkimbi kakhulu, isibonelo, i-sulfuric acid idla kakhulu insimbi lapho ukugxila kuphansi, futhi lapho ukugxila kuphezulu, kwenza insimbi ikhiqize ifilimu ye-passivation, engavimbela ukugqwala; I-hydrogen iboniswa kuphela njengokugqwala kakhulu ensimbi ekushiseni okuphezulu nokucindezela, futhi ukusebenza kokugqwala kwegesi ye-chlorine akukukhulu uma yomile, kodwa ukusebenza kokugqwala kunamandla kakhulu uma kunomswakama othile, futhi izinto eziningi azikwazi ukusetshenziswa. Ubunzima bokukhetha izinto zomzimba we-valve ukuthi asikwazi nje ukucabangela izinkinga zokugqwala, kodwa futhi sicabangele izici ezifana nokucindezela nokumelana nokushisa, kungakhathaliseki ukuthi kunengqondo ngokwezomnotho, nokuthi kulula yini ukuyithenga. Ngakho kufanele unake.

1. Okwesibili ukuthatha izinyathelo zomugqa, njengomthofu, i-aluminium, amapulasitiki obunjiniyela, irabha yemvelo kanye nerabha yokwenziwa ehlukahlukene. Uma izimo ezimaphakathi zivuma, lena indlela yokulondoloza.

2. Okwesithathu, lapho ingcindezi nezinga lokushisa lingekho phezulu, izinto eziyinhloko zevalve uvemvane ene-fluorine ngokuvamile zingasebenza kakhulu ekuvimbeleni ukugqwala.

3. Ngaphezu kwalokho, ingaphandle lomzimba we-valve nalo ligqwalile yi-atmosphere, futhi i-ductile iron material ngokuvamile ivikelwa i-nickel plating.

I-TWS izokwethula maduze umugqa womkhiqizo omusha wokulwa nokugqwala, ohlanganisa uhla olugcwele lwezixazululo zamavalvu ezifanaizivalo uvemvane, ama-valve esango, hlola ama-valvenama-valve ebhola, njll. Lolu chungechunge lwemikhiqizo lusebenzisa ubuchwepheshe obuthuthukisiwe bokumelana nokugqwala kanye nezinqubo ezikhethekile zokwelapha izinto ezibonakalayo ukuze kugcinwe ukusebenza okuhle kakhulu kokuvala kanye nokuzinza kokusebenza ngaphansi kwezimo zokusebenza ezidlulele. Sizibophezele ekuhlinzekeni amakhasimende ngemikhiqizo yama-valve yezimboni ehlala isikhathi eside, enweba kakhulu impilo yensizakalo yemishini, ukunciphisa izindleko zokuyigcina impilo yonke.spanumjikelezo, nokusiza amakhasimende ukuzuza izinqumo zokuthenga inani eliphezulu.