(Incamake)Mubakoresha bakoresha nini - diameter globe valve mubuzima bwa buri munsi.
Mubakoresha bakoresha ibinini binini bya diameter globe mubuzima bwa buri munsi, abantu bakunze kuvuga ikibazo, nukuvuga, nini - diameter nini ya diameter ya globe akenshi biragoye kuyifunga mugihe ikoreshejwe mubitangazamakuru bifite itandukaniro rinini cyane ryumuvuduko, nk'amazi na muremure - amazi. Mubakoresha bakoresha nini nini ya diameter ihagarika valve burimunsi, abantu bakunze kuvuga ikibazo, nukuvuga, nini - diameter ihagarara ya valve akenshi biragoye kuyifunga mugihe ikoreshejwe mubitangazamakuru bifite itandukaniro rinini ugereranije, nka parike n'amazi maremare - Nigute ushobora kuyifunga ku gahato, burigihe usanga hazabaho kumeneka, kandi biragoye kuyifunga. Impamvu yiki kibazo iterwa nigishushanyo mbonera cya valve no kubura urwego ntarengwa rwumuntu rusohoka.
Isesengura ryimpamvu zitoroshye zo gufungura no gufunga binini - kalibiri
Imbaraga zidasanzwe zitanga imbaraga zumuntu mukuru ugereranije ni 60 - 90kg, bitewe na physique zitandukanye.
Mubisanzwe, icyerekezo cyerekezo cyo gufunga - kuzimya valve cyashizweho kugirango kibe gito kandi hejuru. Iyo umuntu afunze valve, umubiri wumuntu usunika intoki mu buryo butambitse kugirango wimure disiki ya hepfo kugirango ugere ku gufunga. Muri iki gihe, guhuza imbaraga eshatu bigomba kuneshwa, aribyo:
1) Gutera Axial Fa;
2) Ubuvanganzo hagati yo gupakira na valve stem Fb;
3) Menyesha guterana Fc hagati ya valve stem na valve core
Igiteranyo cyibihe ni σm = (fa + fb + fc) r
Birashobora kugaragara ko nini cyane diameter, urugwiro rwimbere. Iyo iri hafi ya leta ifunze, imbaraga za axial ziri hafi yumuvuduko nyawo wumuyoboro wumuyoboro (kubera p1 - p2 = 0)
Kurugero, niba DN200 ihagarika valve ikoreshwa kumuyoboro wa 10bar gusa, gusa ikintu cya mbere gifunga imbaraga za axial FA = 10 × Πr2 = 3140KG, hamwe nimbaraga za horizontal zisabwa kugirango habeho umusaruro wa horizontal yumubiri wanyuma wumubiri wanyuma wumubiri wanyuma wumubiri wumuntu usanzwe. Imipaka yingufu, biragoye cyane kumuntu umwe kugirango ufunge rwose valve mubihe nkibi.
Birumvikana ko inganda zimwe zerekana ko iyo mibande igomba gushyirwaho muburyo butandukanye, ikemura ikibazo cyingorabahizi mu gufunga, ariko ikibazo cyingorabahizi cyo gufungura nyuma yo gufungwa cyagaragaye.
Isesengura ryimpamvu zituma inini nini ya diameter globe ikunda kumeneka imbere
Kinini - diameter ihagarika indangagaciro zikoreshwa mubicuruzwa bitetse, sub sub - silinderi, imiyoboro nyamukuru, nibindi. Iyi myanya ifite ibibazo bikurikira:
1) Mubisanzwe, itandukaniro ryumuvuduko mwisohoka rya boiler ni rinini cyane, bityo umuvuduko wamazi nawo ni munini, kandi isuri no kwangirika hejuru yikimenyetso nabyo ni byinshi. Byongeye kandi, gutwika ibyuka ntibishobora kuba 100%, bizatera amavuta kumasoko ya boiler kugira amazi menshi, bikaba bishoboka ko byangiza cavitation na cavitation kwangirika hejuru ya valve.
) , igice cya acide akenshi kizagwa. Ibintu bya alkali bizatera ruswa nisuri hejuru yikimenyetso; ibintu bimwe na bimwe bishobora gutondekwa birashobora kandi kwizirika hejuru ya kashe ya kashe hanyuma ikabikwa, bigatuma valve idashobora gufunga neza.
3) Ibyinjira byinjira nibisohoka bya silinderi, kubera ko ingano ya parike nyuma ya valve rimwe na rimwe iba nini cyangwa ntoya bitewe nibisabwa n’umusaruro nizindi mpamvu, biroroshye gutera flashing, cavitation nibindi bintu mugihe umuvuduko woguhinduka cyane. Ububiko bwa kashe ya valve itera ingaruka zangiza nkisuri na cavitation.
4) Mubisanzwe, iyo hafunguwe umuyoboro munini wa diameter, umuyoboro ugomba gukenera gushyuha, kandi inzira yo gushyushya ubusanzwe isaba urujya n'uruza rw'amazi kugira ngo anyure, kugirango umuyoboro uhindurwe buhoro kandi bingana kurwego runaka, kandi guhagarika valve irashobora gufungurwa byuzuye kugirango wirinde umuyoboro wihuse Kwaguka gukabije guterwa no gushyuha, kwangiza igice cyigice. Nyamara, muriki gikorwa, gufungura valve akenshi usanga ari bito cyane, bigatuma igipimo cy’isuri kiba kinini cyane kuruta ingaruka zisanzwe zikoreshwa, kandi bikagabanya cyane ubuzima bwumurimo wububiko bwa kashe.
Ibisubizo byo gufungura no gufunga binini - diameter globe valve
1) Ubwa mbere, birasabwa guhitamo inzogera - zifunze zifunze - kuzimya valve kugirango wirinde guterana amagambo ya plunger valve na paki yo gupakira no koroshya uburyo bworoshye.
2) Intebe ya valve nintebe bigomba kuba bikozwe mubikoresho bifite isuri nziza kandi birwanya ibintu, nka karbide ya sima ya sima.
3) Birasabwa gufata imiterere ya valve flap yuburyo bubiri kugirango wirinde isuri ikabije kubera gufungura bito, bizagira ingaruka kumurimo wa serivisi n'ingaruka za kashe. Iyo ifunze, burigihe usanga hazabaho kumeneka, kandi biragoye kuyifunga. Impamvu yiki kibazo iterwa nigishushanyo mbonera cya valve no kubura urwego ntarengwa rwumuntu rusohoka.
Isesengura ryimpamvu zitoroshye zo gufungura no gufunga binini - kalibiri
Imbaraga zidasanzwe zitanga imbaraga zumuntu mukuru ugereranije ni 60 - 90kg, bitewe na physique zitandukanye.
Mubisanzwe, icyerekezo cyerekezo cyo gufunga - kuzimya valve cyashizweho kugirango kibe gito kandi hejuru. Iyo umuntu afunze valve, umubiri wumuntu usunika intoki mu buryo butambitse kugirango wimure disiki ya hepfo kugirango ugere ku gufunga. Muri iki gihe, guhuza imbaraga eshatu bigomba kuneshwa, aribyo:
1) Gutera Axial Fa;
2) Ubuvanganzo hagati yo gupakira na valve stem Fb;
3) Menyesha guterana Fc hagati ya valve stem na valve core
Igiteranyo cyibihe ni σm = (fa + fb + fc) r
Birashobora kugaragara ko nini cyane diameter, urugwiro rwimbere. Iyo iri hafi ya leta ifunze, imbaraga za axial ziri hafi yumuvuduko nyawo wumuyoboro wumuyoboro (kubera p1 - p2 = 0)
Kurugero, niba DN200 ihagarika valve ikoreshwa kumuyoboro wa 10bar gusa, gusa ikintu cya mbere gifunga imbaraga za axial FA = 10 × Πr2 = 3140KG, hamwe nimbaraga za horizontal zisabwa kugirango habeho umusaruro wa horizontal yumubiri wanyuma wumubiri wanyuma wumubiri wanyuma wumubiri wumuntu usanzwe. Imipaka yingufu, biragoye cyane kumuntu umwe kugirango ufunge rwose valve mubihe nkibi.
Birumvikana ko inganda zimwe zerekana ko iyo mibande igomba gushyirwaho muburyo butandukanye, ikemura ikibazo cyingorabahizi mu gufunga, ariko ikibazo cyingorabahizi cyo gufungura nyuma yo gufungwa cyagaragaye.
Isesengura ryimpamvu zituma inini nini ya diameter globe ikunda kumeneka imbere
Kinini - diameter ihagarika indangagaciro zikoreshwa mubicuruzwa bitetse, sub sub - silinderi, imiyoboro nyamukuru, nibindi. Iyi myanya ifite ibibazo bikurikira:
1) Mubisanzwe, itandukaniro ryumuvuduko mwisohoka rya boiler ni rinini cyane, bityo umuvuduko wamazi nawo ni munini, kandi isuri no kwangirika hejuru yikimenyetso nabyo ni byinshi. Byongeye kandi, gutwika ibyuka ntibishobora kuba 100%, bizatera amavuta kumasoko ya boiler kugira amazi menshi, bikaba bishoboka ko byangiza cavitation na cavitation kwangirika hejuru ya valve.
) , igice cya acide akenshi kizagwa. Ibintu bya alkali bizatera ruswa nisuri hejuru yikimenyetso; ibintu bimwe na bimwe bishobora gutondekwa birashobora kandi kwizirika hejuru ya kashe ya kashe hanyuma ikabikwa, bigatuma valve idashobora gufunga neza.
3) Ibyinjira byinjira nibisohoka bya silinderi, kubera ko ingano ya parike nyuma ya valve rimwe na rimwe iba nini cyangwa ntoya bitewe nibisabwa n’umusaruro nizindi mpamvu, biroroshye gutera flashing, cavitation nibindi bintu mugihe umuvuduko woguhinduka cyane. Ububiko bwa kashe ya valve itera ingaruka zangiza nkisuri na cavitation.
4) Mubisanzwe, iyo hafunguwe umuyoboro munini wa diameter, umuyoboro ugomba gukenera gushyuha, kandi inzira yo gushyushya ubusanzwe isaba urujya n'uruza rw'amazi kugira ngo anyure, kugirango umuyoboro uhindurwe buhoro kandi bingana kurwego runaka, kandi guhagarika valve irashobora gufungurwa byuzuye kugirango wirinde umuyoboro wihuse Kwaguka gukabije guterwa no gushyuha, kwangiza igice cyigice. Nyamara, muriki gikorwa, gufungura valve akenshi usanga ari bito cyane, bigatuma igipimo cy’isuri kiba kinini cyane kuruta ingaruka zisanzwe zikoreshwa, kandi bikagabanya cyane ubuzima bwumurimo wububiko bwa kashe.
Ibisubizo byo gufungura no gufunga binini - diameter globe valve
1) Ubwa mbere, birasabwa guhitamo inzogera - zifunze zifunze - kuzimya valve kugirango wirinde guterana amagambo ya plunger valve na paki yo gupakira no koroshya uburyo bworoshye.
2) Intebe ya valve nintebe bigomba kuba bikozwe mubikoresho bifite isuri nziza kandi birwanya ibintu, nka karbide ya sima ya sima.
3) Birasabwa gufata ibyemezo bibiri bya valve flap kugirango wirinde isuri ikabije kubera gufungura bito, bizagira ingaruka kumurimo wa serivise n'ingaruka zo gufunga.
Igihe cyagenwe: 2020 - 11 - 10 00:00:00