Isingeniso:

Ekusetshenzisweni kwansuku zonke kwabasebenzisi abakhulu be-valve ye-butterfly, sivame ukubonisa inkinga, okungukuthi, i-valve butterfly enkulu esetshenziselwa ingcindezi yokuhlukanisa imidiya enkulu kakhulu, efana ne-steam, amanzi anengcindezi ephezulu kanye nomunye umsebenzi ocindezelweyo, ngokuvamile kuvame kakhulu. okunzima ukuvala, kungakhathaliseki ukuthi kunzima kangakanani ukuvala, kuhlale kutholakala ukuthi kuzoba nesenzakalo sokuvuza, kunzima ukuvala ngokuqinile, okuholela enkingeni ebangelwa ukwakheka kwesakhiwo se-valve kanye nomkhawulo womuntu wezinga lokuphumayo. itorque ayanele.‍

Ukuhlaziywa kwezizathu zobunzima ekushintsheni ama-valves amakhulu

Amandla okukhipha umkhawulo ovundlile ojwayelekile womuntu omdala angama-60-90kg, kuya ngosayizi abahlukene bomzimba.

Ukugeleza okujwayelekile kwe-valve uvemvane kuklanyelwe ukuba kube kuncane futhi kube phezulu, lapho umuntu evala i-valve, umzimba womuntu uphusha isondo lesandla ngokuvundlile ukuze lijikeleze, ukuze i-valve flap iye phansi ukuze ifinyelele ukuvala, okudingekayo ukunqoba inhlanganisela yamandla amathathu, okungukuthi:

1) i-Axial top thrust Fa;

2) ukupakisha kanye ne-stem friction force Fb;

3) Isiqu kanye ne-valve core contact friction Fc

Isamba setorque ngu-∑M=(Fa+Fb+Fc)R

Njengoba kubonakala, i-caliber enkulu, i-axial thrust force enkulu, lapho iseduze nesimo esivaliwe, i-axial thrust force cishe iseduze nokucindezela kwangempela kwenethiwekhi yepayipi (ngenxa yokuvalwa kwe-P1-P2 ≈ P1 , P2 = 0)

Uma i-valve ye-DN200 uvemvane isetshenziswa epayipini lesitimu eliyi-10bar, i-axial thrust yokuqala evalayo kuphela engu-Fa = 10 × πr2 = 3140kg, futhi amandla omjikelezo ovundlile adingekayo ukuze kuvalwe aseduze nomkhawulo wamandla omjikelezo ovundlile ongaphuma. kusuka emzimbeni womuntu ojwayelekile, ngakho-ke kunzima kakhulu kumuntu ukuvala ngokuphelele i-valve ngaphansi kwezimo ezinjalo zokusebenza.

Yiqiniso ezinye izimboni zitusa ukufaka lolu hlobo lwe-valve ngokuphambene, okuxazulula inkinga yobunzima bokuvala, kodwa-ke inkinga yobunzima ekuvuleni ngemva kokuvala kuphakama.‍

 

I-diameter enkulu kagesi ye-flange butterfly valve umenzi we-Tianjin Zhongfa Valve-ZFA umnyango wobuchwepheshe wokuqeda, ububanzi obukhulu be-flange butterfly valve ukuvuza izizathu zinezimo ezihlukene ngokwezinhlelo ezahlukene, kunezizathu ezahlukene, okulandelayo ukuhlaziya amacala amabili:

 

Okokuqala, isikhathi sokwakha esibangelwa ububanzi obukhulu be-valve butterfly valve ye-butterfly izizathu zokuvuza kwangaphakathi: 

① ezokuthutha nokuphakamisa ngendlela engafanele okudalwe umonakalo ophelele we-valve yovemvane ye-flange kagesi enobubanzi obukhulu, ngaleyo ndlela kubangele ukuvuza kwevalvu yevamvane ye-flange enkulu;

② ifektri, ngemva ukucindezela kwamanzi akazange ukudlala ububanzi electric flange butterfly valve omiswe kanye nokwelashwa anticorrosion, okuholela ekwakhekeni ukuvuza kwangaphakathi ukugqwala seal surface;

③ ukuvikelwa indawo ukwakhiwa akukho endaweni, ububanzi electric flange butterfly valve enkulu ayifakiwe emikhawulweni yomibili impumputhe, imvula, isihlabathi nokunye ukungcola esihlalweni valve, okuholela ukuvuza;

④ Ngesikhathi sokufakwa, awekho amafutha afakwa esihlalweni sevalvu, okuholela ekungcoleni okungena ngemuva kwesihlalo sevalvu, noma ukusha okubangelwa ukuvuza kwangaphakathi ngesikhathi sokushisela;

⑤ I-valve ayifakiwe endaweni evulekile ngokugcwele, idala umonakalo ebhola.Ngesikhathi sokushisela, uma i-valve ingekho endaweni evulekile ngokugcwele, i-spatter ye-welding izodala umonakalo ebhola, futhi lapho ibhola eline-welding spatter livuliwe futhi livaliwe, lizophinde libangele umonakalo esihlalweni se-valve, ngaleyo ndlela kuholele ngaphakathi. ukuvuza;

⑥ I-slag yokushisela nezinye izinsalela zokwakha ezibangelwa imihuzuko yokuvalwa kwendawo;

ifekthri noma isikhathi sokufaka indawo engalungile ebangelwa ukuvuza, uma umkhono we-valve stem drive noma ezinye izesekeli kanye nokungahambi kahle kwayo kwe-engeli yomhlangano, i-valve yovemvane ye-flange enkulu enobubanzi bayovuza.

 

Okwesibili, isikhathi sokusebenza esibangelwa izizathu zokuvuza kwe-valve ye-butterfly enkulu kagesi ye-flange:

① Isizathu esivame kakhulu ukuthi umphathi wokusebenza ucabangela izindleko zokunakekela ezibiza kakhulu ze-valve yovemvane ye-flange kagesi enobubanzi obukhulu ayenzi ukunakekelwa, noma ukuntuleka kwesayensi yokuphathwa kwe-valve butterfly enkulu enobubanzi kanye nezindlela zokunakekela ubukhulu obukhulu bukagesi. I-valve ye-butterfly ye-flange ayikwenzi ukugcinwa kokuvimbela, okuholela ekuhlulekeni kwemishini kusengaphambili;

② ukusebenza ngendlela engafanele noma cha ngokuhambisana nezinqubo zokulungisa ukulungiswa okubangelwa ukuvuza kwangaphakathi;

③ Ekusebenzeni okuvamile, izinsalela zokwakha ziklwebha indawo yokuvala, okuholela ekuvuzeni kwangaphakathi;

④ Ukuhlanzwa kwamapayipi okungafanele kubangela ukulimala endaweni evalekile okuholela ekuvuzeni kwangaphakathi;

⑤ Ukungakhathaleli isikhathi eside noma ukungasebenzi kwevalve yovemvane ye-flange kagesi enobubanzi obukhulu, okuholela esihlalweni se-valve nokubamba ibhola, okubangela ukulimala kokuvala lapho ushintsha i-valve ye-butterfly kagesi enobubanzi obukhulu ukuze kwakhe ukuvuza kwangaphakathi;

⑥ ububanzi electric flange butterfly valve switch ayikho endaweni ukuze kubangele ukuvuza kwangaphakathi, noma yimuphi ububanzi electric flange uvemvane valve kungakhathaliseki indawo yokuvula nokuvala, ngokuvamile sitsheke 2 ° ~ 3 ° kungase kubangele ukuvuza;

⑦ Amavalvu amaningi kagesi anobubanzi obukhulu anobubanzi obukhulu ngokuvamile ane-stem stop block, uma esetshenziswa isikhathi eside, ngenxa yokugqwala nokugqwala nezinye izizathu phakathi kwesiqu ne-stem stop block azoqongelela ukugqwala, uthuli, upende nokunye. imfucumfucu, le mfucumfucu izodala i-valve butterfly enobubanzi obukhulu kagesi engakwazi ukushintshaniswa endaweni futhi ibangele ukuvuza - uma i-valve yovemvane ye-flange kagesi enobubanzi obukhulu Ingcwatshwa, ukwelula isiqu se-valve kuzokhiqiza futhi kuwele ukugqwala okwengeziwe futhi ukungcola kuvimbe i-valve. ukuzungezisa ibhola endaweni, okuholela ekuvuzeni kwevalvu ye-butterfly kagesi enobubanzi obukhulu.

⑧ i-actuator evamile nayo inomkhawulo, uma imbangela yesikhathi eside yokugqwala, ukuqina kwamafutha noma ukuxega kwamabholithi axege kuzokwenza umkhawulo unganembile, okuholela ekuvuzeni kwangaphakathi;

⑨ Ukuma kwevalvu ye-actuator kagesi kuya phambili, okungahlobene nendawo okubangela ukuvuza kwangaphakathi;

⑩ ukuntuleka kokugcinwa nokugcinwa ngezikhathi ezithile, okuholela ekuvaleni amafutha omile, aqinile, omisiwe omisiwe aqoqana esihlalweni sevalvu enwebekayo, okuvimbela ukunyakaza kwesihlalo se-valve, okuholela ekuhlulekeni kophawu.

I-ZFA Valve Factory inamaqembu aqeqeshiwe e-QC ukuqinisekisa ukuthi i-valve yefekthri ngayinye ngaphakathi nokubukeka kuzwakala.Ngesikhathi esifanayo, sinobuchwepheshe obuchwepheshile kanye namaqembu angemuva kokuthengisa ukusiza amakhasimende ukuxazulula izinkinga ezihlukahlukene okuhlangatshezwane nazo phakathi nokufakwa nokusebenzisa.