Kufanele wazi, i-valve nayo inolaka layo!

Ukwehlisa ukuvuza kwevalve yokuvala, kuba ngcono.Ukuvuza kwe-valve yophawu oluthambile yiyona ephansi kakhulu.Yebo, umphumela wokusika muhle, kodwa awukwazi ukumelana nokugqoka futhi unokwethenjelwa okubi.

1. Kungani kulula uku-oscillate lapho i-valve yezihlalo ezimbili isebenza ngokuvuleka okuncane?
Ngomgogodla owodwa, i-valve inokuqina okuhle lapho okuphakathi kuwuhlobo oluvulekile lokugeleza, kanye nokungaqini kahle lapho okuphakathi kuwuhlobo oluvaliwe.I-valve yezihlalo ezimbili inama-valve cores amabili, i-valve core isendaweni egelezayo evalekile, kanti i-valve engaphezulu isendaweni evulekile ukugeleza.Ngale ndlela, lapho i-valve isebenza ekuvuleni okuncane, ukugeleza kwe-valve core evaliwe kulula ukubangela ukudlidliza kwe-valve, yingakho i-valve yesihlalo esiphindwe kabili ingakwazi ukusetshenziselwa umsebenzi omncane wokuvula.

2. Kungani ivalvu evala uphawu ingasetshenziswa njengevalufu yokuvala?
Ubuhle be-double seat valve core yisakhiwo sebhalansi yamandla, okuvumela umehluko omkhulu wengcindezi, kodwa ububi bawo obuvelele ukuthi izindawo ezimbili zokuvala azikwazi ukuxhumana kahle ngesikhathi esisodwa, okuholela ekuvuzeni okukhulu.Uma isetshenziswa ngokungemthetho futhi ngempoqo esimweni sokunqanyulwa, umphumela ngokusobala awumuhle.Noma ngabe kuningi okuthuthukisiwe okwenziwe kuyo (njenge-valve yemikhono evalwe kabili), akukhuthazwa.

3. Iluphi uhlobo lwevalvu eqondile yokulawula i-stroke enokusebenza okungekuhle kwe-anti blocking kanye ne-angular travel valve inokusebenza okuhle kokuvinjwa?
I-valve core ye-valve ye-stroke eqondile i-throttling eqondile, futhi i-medium iwukugeleza okuvundlile ngaphakathi nangaphandle, ngakho-ke indlela yokugeleza ekamelweni le-valve kufanele iphenduke futhi ihlehle, okwenza indlela yokugeleza ye-valve ibe inkimbinkimbi (isimo sifana umumo othi “s” ohlanekezelwe).Ngale ndlela, kunezindawo eziningi ezifile, ezihlinzeka ngendawo yemvula yendawo ephakathi futhi kubangele ukuvinjelwa ngokuhamba kwesikhathi.I-throttling ye-angular travel valve iyindlela evundlile.I-medium igeleza iphinde iphume ngokuvundlile, ngakho-ke kulula ukususa into engcolile.Ngesikhathi esifanayo, indlela yokugeleza ilula futhi isikhala semvula ephakathi sincane kakhulu, ngakho-ke ukusebenza kwe-anti blocking ye-valve yokuhamba ye-angular kuhle.
4. Kungani isiqu sevalvu yokulawula unhlangothi sisincane?

Kubandakanya isimiso esilula somshini: ukungqubuzana okukhulu kokuslayida kanye nokugedla okuncane okugoqayo.Isiqu se-valve ye-stroke eqondile siya phezulu naphansi.Uma ukupakisha kucindezelwa kancane, kuzogoqa induku ye-valve ngokuqinile futhi kukhiqize umehluko omkhulu wokubuya.Ngenxa yalesi sizathu, isiqu se-valve yakhelwe ukuba sibe sincane kakhulu, futhi ukupakisha kuvame ukusetshenziswa nge-PTFE ukupakisha nge-coefficient encane yokushayisana, ukuze kuncishiswe iphutha lokubuyisela.Nokho, inkinga iwukuthi isiqu se-valve sincane, okulula ukugoba futhi ukuphila kokupakisha kufushane.Indlela engcono kakhulu yokuxazulula le nkinga ukusebenzisa isiqu se-valve ejikelezayo, okungukuthi, i-valve yokulawula uhlobo lwe-angle.Isiqu saso siwugqinsi izikhathi ezingu-2-3 kunesiqu se-valve ye-stroke eqondile, futhi ukupakishwa kwegraphite ngempilo ende yesevisi kuyakhethwa.Ukuqina kwenduku ye-valve kuhle, impilo yokupakisha yinde, futhi i-torque yayo ye-friction incane futhi umehluko wokubuya mncane.

5. Kungani umehluko we-cut-off pressure valve umkhulu?
Umehluko omkhulu wengcindezi yokunqanyulwa kwe-engeli yokushaywa kwe-engeli kungenxa yokuthi amandla angumphumela akhiqizwa indawo emaphakathi ye-valve core noma ipuleti le-valve akhiqiza i-torque encane kakhulu ku-shaft ejikelezayo, ngakho-ke ingakwazi ukumelana nomehluko omkhulu wengcindezi.

6. Kungani impilo yesevisi ye-valve uvemvane eline-rubber lined ne-fluorine lined diaphragm valve isetshenziswa emanzini ane-desalted ifushane?
Kukhona i-acid ephansi yokuhlushwa noma i-alkali endaweni yamanzi ancibilikisiwe, edla irabha.Ukusebenza kokugqwala kwenjoloba ekukhuliseni, ukuguga, amandla aphansi, nge-valve uvemvane olunerabha, umphumela wokusebenzisa i-diaphragm valve awulungile, ingqikithi yawo ukumelana nokugqwala kwerabha.I-valve ye-diaphragm enerabha yangemuva yathuthukiswa yaba ivalvu ye-diaphragm ene-fluorine enokumelana nokugqwala okuhle.Nokho, ulwelwesi lwe-valve ye-diaphragm enomugqa we-fluorine alukwazanga ukumelana nokugoqeka phezulu naphansi, okubangela ukulimala komshini futhi kufinyeze impilo yesevisi yevalvu.Manje indlela engcono kakhulu ukusebenzisa i-valve yebhola ekhethekile yokwelapha amanzi, engasetshenziswa iminyaka engu-5-8.

7. Kungani i-valve yokuvala kufanele ivalwe ngokuqinile?
Ukwehlisa ukuvuza kwevalve yokuvala, kuba ngcono.Ukuvuza kwe-valve yophawu oluthambile yiyona ephansi kakhulu.Yebo, umphumela wokusika muhle, kodwa awukwazi ukumelana nokugqoka futhi unokwethenjelwa okubi.Ngokwezindinganiso eziphindwe kabili zokuvuza okuncane nokuvala uphawu okuthembekile, ukuvala uphawu okuthambile kungcono kunokuvala okunzima.Okufana nokusebenza okugcwele kwe-valve yokulawula ukukhanya kwe-ultra, evalwe futhi embozwe ngokuvikelwa kwe-alloy ukumelana nokugqoka, ukuthembeka okuphezulu, izinga lokuvuza le-10-7, liye lakwazi ukuhlangabezana nezidingo ze-valve yokuvala.

8. Kungani ivalvu yemikhono ingazange ithathe indawo yesihlalo esisodwa nesikabili?
Amavalve emikhono, aphuma ngeminyaka yawo-1960, ayesetshenziswa kakhulu ekhaya naphesheya ngeminyaka yawo-1970.Ezitshalweni ze-petrochemical ezethulwa ngawo-1980, ama-sleeve valves aba nengxenye enkulu.Ngaleso sikhathi, abantu abaningi babekholelwa ukuthi ama-sleeve valves angashintsha ama-valve esihlalo esisodwa nakabili futhi abe yimikhiqizo yesizukulwane sesibili.Kuze kube manje, akunjalo.I-valve yesihlalo esisodwa, i-valve yesihlalo esikabili kanye ne-sleeve valve konke kusetshenziswa ngokulinganayo.Lokhu kungenxa yokuthi i-sleeve valve ithuthukisa kuphela indlela yokudonsa, ukuzinza nokunakekelwa, kodwa isisindo sayo, izinkomba zokuvimba nokuvuza zihambisana nalezo ze-valve yesihlalo esisodwa kanye ne-double seat seat.Ingakwazi kanjani ukufaka ivalve yesihlalo esisodwa kanye ne-double seat valve?Ngakho-ke, zingasetshenziswa kuphela ndawonye.

9. Kungani ukukhetha kubaluleke ngaphezu kokubala?
Uma kuqhathaniswa nesibalo, ukukhetha uhlobo kubaluleke kakhulu futhi kuyinkimbinkimbi.Ngenxa yokuthi ukubala kuwukubala kwefomula elula kuphela, akuncikile ekunembeni kwefomula ngokwayo, kodwa ekunembeni kwemingcele yenqubo enikeziwe.Kunokuqukethwe okuningi okuhilelekile ekukhetheni imodeli.Uma kungenangqondo, kuzoholela ekukhethweni okungalungile, okungeke kubangele ukuchithwa kwabasebenzi, izinsiza ezibonakalayo kanye nemithombo yezimali, kodwa futhi kubangele izinkinga ezithile ezisetshenziswayo, njengokuthembeka, impilo yesevisi kanye nekhwalithi yokusebenza.