Amavalvu wesango ajayelekileko ngokuvamileko atjho amavalvu wesango avaliweko aqinileko. I-atikili le ihlaziya ngokunabileko umehluko phakathi kwamavalvu wesango avaliweko athambileko namavalvu wesango ajayelekileko. Nawunelisekile ngependulo, sibawa unikele i-VTON isithupha.
Kalula nje, amavalvu we-elastic soft-sealed gate avale phakathi kweensimbi nezingasizo zensimbi, ezifana ne-nylon\tetrafluoroethylene, begodu ama-gate valve avaliweko aqinileko zivala hlangana neensimbi neensimbi;
Amavalvu wesango avalwe ngokuthambileko kanye namavalvu wesango avaliweko aqinileko atjho izinto zokuvala zesihlalo sevalvu. Iimvalo eziqinileko zenziwa ngomtjhini ngokunembileko ngezinto zesihlalo sevalvu ukuqinisekisa ukunemba okufanako nomgogodla wevalvu (ibholo), ngokuvamileko insimbi engagqwali nethusi. Iimvalo ezithambileko zitjho izinto zokuvala ezifakwe esihlalweni sevalvu njengezinto ezingezizo zensimbi. Ngombana izinto ezithambileko zokuvala zine-elasticity ethileko, iimfuneko zokunemba kokucubungula ziphasi ukudlula izinto eziqinileko. Sibhekisela ebujameni be-VTON ukuhlathulula umehluko phakathi kwamavalvu wesango avaliweko athambileko angeniswa ngaphandle kanye namavalvu wesango avaliweko aqinileko angeniswa ngaphandle.
1. Iinsetjenziswa zokuvala
1. Iinsetjenziswa zokuvala zombili zihlukile.Amavalvu wesango avalwe ngokuthambilekokanengi zenziwa ngerabha nofana nge-polytetrafluoroethylene. Amavalvu wesango avaliweko aqinileko enziwa ngeensimbi ezifana nensimbi engagqwali.
. Umhlobo lo wokuvala unemisebenzi emihle yokuvala, kodwana awujamelani namazinga womtjhiso aphezulu, kulula ukuwugqoka, begodu unezinto ezimbi. Ukwenza isibonelo: irabha yensimbi; i-tetrafluoroethylene yensimbi, njll. Ukwenza isibonelo, isivalo sesihlalo se-elastic esingeniswakoivalvu yesangoe ye-VTON ivamise ukusetjenziswa emazingeni womtjhiso angaphasi kwe-100°C, begodu isetjenziselwa khulu amanzi womtjhiso wegumbi.
3. Isivalo esiqinileko: Isivalo esiqinileko senziwe ngezinto zensimbi nofana ezinye izinto eziqinileko emahlangothini womabili, okubizwa ngokuthi "isivalo esiqinileko". Umhlobo lo wesivalo awusebenzi kuhle, kodwana uyajamelana namazinga womtjhiso aphezulu, ukuguga begodu unezinto ezihle zokusebenza. Ukwenza isibonelo: isimbi isimbi; ikhopha yensimbi; igrafayithi yensimbi; insimbi ehlangeneko yensimbi; (insimbi lapha ingaba yinsimbi ephosiweko, insimbi ephosweko, insimbi ye-alloy nayo ingaba yi-surfacing, i-alloy efafaziweko). Ukwenza isibonelo, i-valve ye-VTON yensimbi engagqwali yangeniswa ngaphandle ingasetjenziselwa umusi, igesi, amafutha namanzi, njll.
2. Ithekhnoloji yokwakha
Indawo yomsebenzi webubulo lemitjhini iyinkimbinkimbi, eminengi yayo inamazinga womtjhiso aphasi khulu kanye nomfutho ophasi, ngokujamelana okukhulu nokugqwala okunamandla kwendawo. Nje ithekhnoloji sele ithuthukile, kangangobana amavalvu wesango avaliweko aqinileko sele akhuthazwa khulu.
Ubudlelwano bokuqina hlangana kweensimbi kufanele buqalwe. Kuhlekuhle, i-valve yesango evaliweko eqinileko iyafana naleyo evaliweko ngokuthambileko ngombana iyisivalo hlangana neensimbi. Umzimba wevalvu kutlhogeka bona uqiniswe, begodu ipuleti levalvu nesihlalo sevalvu kufanele sihlale sigayiwe ukufikelela ukuvala. Umjikelezo wokukhiqiza amavalvu wesango avaliweko aqinileko mude.
3. Sebenzisa imibandela
Umphumela wokuvala Iimvalo ezithambileko zingafinyelela ukuvuza okungekho, kuthi iimvalo eziqinileko zingaba phezulu nofana phasi ngokuya ngeemfuneko;
Iimvalo ezithambileko kufuze zingavuzi, begodu ukuvuza kuzokwenzeka emazingeni womtjhiso aphezulu, kuthi iimvalo eziqinileko ngeze zavuza. Iimvalo eziqinileko zingasetjenziswa ngaphasi kwengcindezi ephezulu, ngesikhathi iimvalo ezithambileko zingasetjenziswa. Ngalesisikhathi, ivalvu yesango le-VTON elivaliweko eliqinileko liyatlhogeka.
Iimvalo ezithambileko akukafaneli zisetjenziswe emithonjeni ethileko ebolako, begodu iimvalo eziqinileko zingasetjenziswa;
4. Ubujamo bokusebenza
Iimvalo eziqinileko zingaba phezulu nofana phasi ngokuya ngeemfuneko; ama-seal athambileko kufuze angavuthi umlilo, begodu ama-seal athambileko angafinyelela ama-seal aphezulu ngamunye. Ngombana emazingeni womtjhiso aphasi khulu, ama-seal athambileko azokuvuza, kuthi ama-seal aqinileko angabi nomraro lo; ama-seal aqinileko angakghona ukujamelana nokugandeleleka okukhulu, kuthi ama-seal athambileko angakghoni. Ukwenza isibonelo, amavalvu wensimbi we-VTON asebenzisa ama-seal aqinileko, begodu umfutho ungafinyelela ku-32Mpa nofana ku-2500LB; ama-seal athambileko angeze asetjenziswa kezinye iindawo ngebanga lokugeleza kwe-medium, njengeminye imidiya ebolako); ekugcineni, amavalvu wokuvala aqinileko avamise ukubiza ukudlula amavalvu athambileko. Malungana nokwakhiwa, umehluko hlangana nalezi zombili awukhulu, umehluko omkhulu yisihlalo sevalvu, isivalo esithambileko asikho sensimbi, begodu isivalo esiqinileko siyinsimbi
V. Ukukhethwa kwemitjhini
Ukukhethwa kwesivalo esithambileko nesiqinilekoamavalvu wesangoikakhulukazi isekelwe emkhathini wenqubo, izinga lokushisa kanye nomfutho. Ngokuvamileko, nangabe umkhakha uneenhlayiya eziqinileko nofana sele ugugile nofana amazinga womtjhiso angaphezu kwama-200 degrees, kungcono ukusebenzisa ama-seal aqinileko. Ukwenza isibonelo, umtjhiso onobujamo obuphezulu buvamise ukufika ku-180 ukuya ku-350°C, njeke kufanele kukhethwe ivalvu yokuvala eqinileko.
6. Umehluko wentengo neendleko
Nge-caliber efanako, ukugandeleleka kanye nezinto ezisetjenziswako, ezingeniswako ezivaliweko eziqinilekoamavalvu wesangozibiza khulu ukudlula amavalvu wesango avalwe ngokuthambileko avela kwamanye amazwe; isibonelo, i-VTON's DN100 engeniswako yensimbi yesango ibiza ngamaphesenti ama-40 ukudlula i-DN100 engeniswako yensimbi evaliweko; nangabe zombili iinvalvu zesango ezivaliweko eziqinileko kanye neenvalvu zesango ezivaliweko ezithambileko zingasetjenziswa ngaphasi kwemibandela yokusebenza, lokha nawucabangela iindleko, linga ukukhetha iinvalvu zesango ezivaliweko ezithambileko ezibuya ngaphandle.
7. Umehluko epilweni yokusebenza
Ukuvala okuthambileko kutjho bona ihlangothi elilodwa lokuvala lenziwe ngezinto eziqinileko ezincani. Ngokuvamileko, isihlalo esithambileko sokuvala senziwe ngezinto ezingezizo zensimbi ezinamandla athileko, ubudisi nokujamelana nokutjhisa. Inokusebenza okuhle kokuvala begodu ingakghona ukuvuza, kodwana ipilo yayo nokutjhuguluka kwayo emazingeni womtjhiso akukalungi. Iimvalo eziqinileko zenziwe ngensimbi begodu zinokusebenza okumbi kokuvala, nanyana abanye abakhiqizi bathi bangenza bona kungabi nokuvuza.
Ubuhle bama-seal athambileko kusebenza kuhle kokuvala, begodu ubumbi bulula ukuguga, ukuguga nokudabuka, nesikhathi esifitjhani sokuphila. Iimvalo eziqinileko zihlala isikhathi eside, kodwana ukusebenza kwazo kokuvala akukalungi naziqathaniswa neemvalo ezithambileko. Imihlobo emibili yama-seal ingasiza omunye nomunye. Malungana nokuvala, ukuvala okuthambileko kungcono, kodwana nje ukuvala okuqinileko kungahlangabezana neemfuneko ezihambelanako.
Iimvalo ezithambileko angeze zahlangabezana neemfuneko zenqubo yezinye izinto ezibolako, kodwana iimvalo eziqinileko zingararulula umraro lo!
Imihlobo emibili yama-seal ingasiza omunye nomunye. Malungana nokuvala, ukuvala okuthambileko kungcono, kodwana nje ukuvala okuqinileko kungahlangabezana neemfuneko ezihambelana nazo!
Ubuhle bama-seal athambileko kusebenza kuhle kokuvala, begodu ubumbi bulula ukuguga, ukuguga nokudabuka, nesikhathi esifitjhani sokuphila.
Iimvalo eziqinileko zihlala isikhathi eside, kodwana ukuvalwa kwazo kubi khulu kunezivalo ezithambileko.
Isikhathi sokuposa: 14 kuNobayeni 2024
