Njengemishini ebalulekile yokulawula uketshezi, usayizi wokukhetha uhlobo nokukhethwa kwezinto ezibonakalayo kwe-valve butterfly yomugqa ophakathi kubaluleke kakhulu ekusebenzeni kwesistimu nokuphila kwesevisi. Lesi sihloko sizoxoxa ngokujulile ngokubaluleka kosayizi nokukhethwa kwempahla ye-valve uvemvane womugqa ophakathi, futhi sinikeze iziphakamiso nezinyathelo zokuqapha kubafundi.
Isigaba sokuqala: I-valve uvemvane yomugqa ophakathi isetshenziswa kakhulu ezimbonini ezihlukahlukene zezinhlelo zokulawula uketshezi, indima yayo ukulawula ngokushesha nangokuthembekile uketshezi lwemidiya oluvulayo naluvala kanye nokulawula. Ubukhulu obufanele nokukhethwa kwezinto ezifanele kuyizici ezibalulekile zokuqinisekisa ukusebenza okuhle kakhulu nokusebenza okuthembekile kwe-valve butterfly yomugqa ophakathi.
Isigaba sesibili: Okokuqala, ukukhethwa kosayizi wevalve uvemvane womugqa ophakathi kungenye yezinto ezibalulekile ezithinta ukusebenza kwawo. Ubukhulu obufanele bungaqinisekisa izici zokugeleza, ukumelana nokucindezela nokusebenza kokuvala i-valve. Kuye ngohlobo lwe-fluid medium, izidingo zokugeleza nezimo zokusetshenziswa, kuyadingeka ukukhetha ububanzi be-valve obufanele kanye nendawo yokuvula isihlalo. Usayizi omkhulu noma omncane kakhulu ungaholela ekulawuleni uketshezi okungalungile, ukusetshenziswa kwamandla ngokweqile, kanye nokulimala kwemishini.
Isigaba sesithathu: Okwesibili, ukukhethwa kwempahla yevalve uvemvane yomugqa ophakathi kubalulekile ekuphikiseni ukugqwala kwalo, ukumelana nokugqoka kanye nempilo yesevisi. Imithombo yezindaba ehlukene inezinto ezihlukahlukene zamakhemikhali, ngakho ukukhetha impahla efanele kungavimbela ngempumelelo ukugqwala, ukuguga nokuguga kwezinto. Izinto ezisetshenziswa kakhulu zihlanganisa i-carbon steel, insimbi engagqwali, insimbi eyinsimbi nama-alloys ethusi. Ngokusho kwe-asidi ne-alkali ye-medium, izinga lokushisa nokucindezela nezinye izimo, ukukhetha impahla efanele kungandisa impilo yesevisi ye-valve butterfly.
Isigaba 4: Uma ukhetha usayizi kanye nempahla yevalve uvemvane yomugqa ophakathi, kufanele kubhekwe izici ezibalulekile ezilandelayo. Esokuqala izici ze-fluid medium, okuhlanganisa izinga lokushisa, ingcindezi, i-viscosity, njll. Eyesibili ithonya lemithombo ye-fluid ku-valve, njengokugqwala, ukubola kanye ne-steam conductivity eshisayo. Ngaphezu kwalokho, kuyadingeka futhi ukucabangela izimo zokusetshenziswa, njengendawo yokufaka, umehluko wengcindezi yokusebenza kanye nemodi yokusebenza kwe-valve.
Ngokusekelwe kulezi zici ezingenhla, sinikeza iziphakamiso ezilandelayo zokubhekisela kwabafundi: 1. Lapho ukhetha ubukhulu be-valve butterfly yomugqa ophakathi, kuyadingeka ukucabangela ngokugcwele ukugeleza, ingcindezi kanye nesivinini se-fluid medium bese ukhetha i-valve efanele. ububanzi kanye nendawo yokuhlala. 2. Uma ukhetha izinto ze-valve ye-butterfly yomugqa ophakathi, kuyadingeka ukukhetha into ephikisana nokugqwala nokugqoka ngokuvumelana nezakhiwo zamakhemikhali ze-medium kanye nemibandela yokusetshenziswa. 3, ekukhetheni, kuyadingeka futhi ukuthintana nonjiniyela abangochwepheshe noma abakhiqizi, ngokuya ngesimo sangempela sokuhlola okuphelele nokuthatha izinqumo.
Njengengxenye ebalulekile yesistimu yokulawula uketshezi, ubukhulu nokukhethwa kwezinto ezibonakalayo kwe-valve butterfly kubaluleke kakhulu. Ukukhethwa okulungile kungaqinisekisa ukuthi i-valve ye-butterfly yomugqa ophakathi inokusebenza okuhle kakhulu, ikhono lokulawula elizinzile kanye nempilo ende yesevisi emsebenzini. Ngakho-ke, kufanele siqaphele ngokugcwele ukubaluleka kobukhulu nokukhethwa kwezinto ezibonakalayo kwe-valve butterfly yomugqa ophakathi, futhi sinikeze ukunakwa nokukhathazeka okwanele kuphrojekthi yangempela. Ngosayizi ofanele kanye nokukhetha kwezinto ezibonakalayo, ungathuthukisa ukusebenza kahle, ukwethembeka nokuphepha kohlelo.
Ngaphezu kwalokho, ngentuthuko eqhubekayo yesayensi nobuchwepheshe, ezinye izinto ezintsha zisetshenziswa kancane kancane ekwakhiweni kwamavalvu ovemvane anomugqa ophakathi. Isibonelo, ukusetshenziswa kwezinto ze-polymer kunganikeza ukumelana nokugqwala okungcono kanye nomklamo ongasindi, kuyilapho kunciphisa ukusetshenziswa kwamandla nokunciphisa ingozi yokuvuza. Ngakho-ke, onjiniyela nabasebenzisi kufanele banake kakhulu inkambiso yokuthuthukiswa kwezinto ezintsha lapho bekhetha amavalvu uvemvane omugqa ophakathi.
Ekugcineni, kufanele kugcizelelwe ukuthi usayizi olungile kanye nokukhethwa kwezinto ezibonakalayo kwe-valve uvemvane womugqa ophakathi akuwona umsebenzi wasebusuku, futhi udinga ukucabangela izici eziningi futhi ulungise ngokuvumelana nesimo esithile sohlelo lokusebenza. Ukubambisana nokuxhumana nonjiniyela abangochwepheshe nabakhiqizi kubalulekile ekuqinisekiseni ukunemba kokukhetha. Kuphela ngokuhlola ngokucophelela nokukhetha lapho singaqinisekisa ukuthi ivalve uvemvane yomugqa ophakathi idlala ukusebenza okungcono kakhulu kanye nezinzuzo ezinhlelweni zokusebenza.
Kafushane, ukubaluleka kobukhulu nokukhethwa kwempahla ye-valve butterfly yomugqa ophakathi ohlelweni lokulawula uketshezi kuyabonakala. Ngokukhetha okulungile, ukusebenza nokuzinza kwe-valve kungaqinisekiswa, futhi ukusebenza kahle nokuphepha kwesistimu kungathuthukiswa. Ngakho-ke, kuphrojekthi yobunjiniyela, ukucatshangelwa okugcwele kosayizi nokukhethwa kwempahla kuyisinyathelo esibalulekile esibalulekile. Kuphela ngaphansi kobukhulu obufanele kanye nezinto ezibonakalayo, i-valve ye-butterfly yomugqa ophakathi ingadlala indima engcono kakhulu yokuqinisekisa ukusebenza okuvamile nokuthembeka kwesistimu.
Uma udinga ulwazi olwengeziwe mayelana nevalve yovemvane yomugqa omaphakathi noma iziphakamiso zokukhetha ezithile, sicela uthintane nochwepheshe abafanelekile noma abakhiqizi ukuthola isiqondiso nosizo olunembe kakhudlwana.
Ivalve uvemvane yomugqa ophakathi
Isikhathi sokuthumela: Jul-25-2023
