Intshayelelo:

Ekusetyenzisweni kwansuku zonke kwabasebenzisi bevalve yebhabhathane enkulu, sihlala sibonakalisa ingxaki, oko kukuthi, ivalve yebhabhathane enkulu esetyenziselwa ucinezelo lokwahlulahlula imidiya enkulu, efana nomphunga, uxinzelelo lwamanzi oluphezulu kunye neminye imisebenzi ecinezelekileyo, idla ngokuba kakhulu. kunzima ukuvala, kungakhathaliseki ukuba kunzima kangakanani ukuvala, kuhlala kufunyenwe ukuba kuya kubakho isiganeko sokuvuza, kunzima ukuvala ngokuqinileyo, okubangela ingxaki ebangelwa kuyilo lwesakhiwo sevalve kunye nomda womntu wezinga lemveliso. itorque ayonelanga.‍

Uhlalutyo lwezizathu zobunzima ekutshintsheni iivalvu ezinkulu zedayamitha

Umlinganiselo othe tye othe tyaba wokukhupha amandla omntu omdala ngama-60-90kg, ngokuxhomekeke kubungakanani bomzimba obahlukeneyo.

Indlela yokuhamba ngokubanzi yevalve yebhabhathane yenzelwe ukuba ibephantsi kwaye iphakame, xa umntu evala ivalve, umzimba womntu utyhala isondo lesandla ngokuthe tye ukuze lijikelezise, ​​ukuze i-valve flap ihle ihle ukuze ivalwe, nto leyo efunekayo ukoyisa indibanisela yamandla amathathu, angala:

1) I-Axial topthrust Fa;

2) ukupakisha kunye ne-stem friction force Fb;

3) I-Stem kunye ne-valve core contact friction Fc

Itorque iyonke yi-∑M=(Fa+Fb+Fc)R

Njengoko kunokubonwa, i-caliber enkulu, i-axial thrust force enkulu, xa isondele kwindawo evaliweyo, i-axial thrust force iphantse isondele kuxinzelelo lwangempela lombhobho wombhobho (ngenxa yokuvalwa kwe-P1-P2 ≈ P1 , P2 = 0)

Ukuba ivalve yebhabhathane ye-DN200 isetyenziswa kumbhobho womphunga we-10bar, kuphela eyokuqala yokuvala i-axial thrust Fa = 10 × πr2 = 3140kg, kwaye amandla omjikelezo othe tye ofunekayo ukuvala asondele kumda wamandla othe tye ojikelezayo anokukhutshwa. ukusuka kumzimba womntu oqhelekileyo, ngoko kunzima kakhulu ukuba umntu avale ngokupheleleyo i-valve phantsi kweemeko zokusebenza ezinjalo.

Ngokuqinisekileyo ezinye iifektri zincoma ukufaka olu hlobo lwevalve ngasemva, olusombulula ingxaki yobunzima bokuvala, kodwa ke ingxaki yobunzima bokuvula emva kokuvala kuvela.‍

 

Ivalve enkulu yombane yeflange ibhabhathane ivalufa iTianjin Zhongfa iValve-ZFA isebe lobuchwepheshe bokugqiba, ubukhulu obukhulu bombane weflange ibhabhathane ivelufa ukuvuza izizathu zineemeko ezahlukeneyo ngokweenkqubo ezahlukeneyo, kukho izizathu ezahlukeneyo, oku kulandelayo ukuhlalutya amatyala amabini:

 

Okokuqala, ixesha lokwakha elibangelwa ubukhulu obukhulu be-valve yebhabhathane yebhabhathane yezizathu zokuvuza kwangaphakathi: 

① uthutho kunye nokuphakanyiswa ngendlela engafanelekanga ebangelwa ngumonakalo opheleleyo kwivalve yebhabhathane yebhabhathane enedayamitha enkulu yombane, ngaloo ndlela kubangele ukuvuza kwevalve yebhabhathane phakathi kombane;

② umzi-mveliso, emva kokuba uxinzelelo lwamanzi lungazange ludlale ivalve enkulu yombane yeflange yombane kunye nonyango lwe-anticorrosion, ekhokelela ekwakhiweni kokuvuza kwangaphakathi kokutywinwa komphezulu;

③ ukhuseleko lwesiza sokwakha alukho, ivalve yebhabhathane yebhabhathane enedayamitha enkulu yombane ayifakwanga kuzo zozibini iziphelo zokungaboni, imvula, isanti kunye nobunye ukungcola kwisitulo sevalve, okukhokelela ekuvuzeni;

④ Ngexesha lofakelo, akukho grisi itofwayo kwisitulo sevalve, nto leyo ekhokelela kukungcola okungena ngasemva kwesihlalo sevalvu, okanye ukutsha okubangelwa kukuvuza kwangaphakathi ngexesha lewelding;

⑤ Ivalve ayifakwanga kwindawo evuleke ngokupheleleyo, ibangela umonakalo kwibhola.Ngexesha le-welding, ukuba i-valve ayikho kwindawo evulekile ngokupheleleyo, i-welding spatter iya kubangela umonakalo kwibhola, kwaye xa ibhola ene-welding spatter ivuliwe kwaye icinyiwe, iya kubangela umonakalo kwisihlalo sevalve, ngaloo ndlela ikhokelela ngaphakathi. ukuvuza;

⑥ I-welding slag kunye nezinye iintsalela zokwakha ezibangelwa yimikrwelo yomphezulu wokutywina;

umzi-mveliso okanye ixesha lofakelo indawo engalunganga ebangelwa kukuvuza, ukuba umkhono wevalve stem drive okanye ezinye izincedisi kunye nokungalungelelanisi kwayo i-engile yendibano, ubukhulu bombane beflange ivelufa yebhabhathane iya kuvuza.

 

Okwesibini, ixesha lokusebenza ngenxa yezizathu zokuvuza kwevalve yebhabhathane ubukhulu obukhulu bombane:

① Esona sizathu sixhaphake kakhulu kukuba umphathi wemisebenzi uthathela ingqalelo iindleko ezixabisa kakhulu zogcino lwedayamitha enkulu yombane yebhabhathane ivelufa yebhabhathane ayiqhubi ulungiso, okanye ukungabikho kombane omkhulu wedayamitha yombane weflange ulawulo lwevalve yebhabhathane kunye neendlela zokugcinwa kwedayamitha enkulu yombane. Ivalve yebhabhathane yeflange ayiqhubeki nolondolozo lothintelo, okukhokelela ekungasebenzini kwezixhobo kwangaphambili;

② ukusebenza ngokungafanelekanga okanye hayi ngokuhambelana neenkqubo zogcino olubangelwa kukuvuza kwangaphakathi;

③ Kumsebenzi wesiqhelo, iintsalela zokwakha zikrwela umphezulu wokutywina, okukhokelela ekuvuzeni kwangaphakathi;

④ Ukucocwa kombhobho ngokungafanelekanga kubangela umonakalo kumphezulu wokutywina obangela ukuvuza kwangaphakathi;

⑤ Ixesha elide lokungagcini okanye ukungasebenzi kwevalve yebhabhathane ye-flange yombane enobubanzi obukhulu, okukhokelela kwisihlalo sevalve kunye nokubamba ibhola, kubangele umonakalo wokutywina xa utshintshela ivalve yebhabhathane yombane enobubanzi obukhulu ukwenza ukuvuza kwangaphakathi;

⑥ ububanzi obukhulu bombane ombane weflange ivalve yebhabhathane ayikho kwindawo yokubangela ukuvuza kwangaphakathi, nayiphi na ivalve yebhabhathane yebhabhathane enedayamitha enkulu yombane, kungakhathaliseki indawo yokuvula nokuvala, ngokubanzi ukuthambeka kwe-2 ° ~ 3 ° kunokubangela ukuvuza;

⑦ Iivalve zebhabhathane ezinobubanzi obukhulu obunobubanzi obukhulu obunobubanzi bombane ubukhulu becala zinebloko yokumisa isiqu, ukuba zisetyenziswe ixesha elide, ngenxa yomhlwa kunye nomhlwa kunye nezinye izizathu phakathi kwesiqu kunye nesiqu sokumisa ibloko ziya kuqokelela umhlwa, uthuli, ipeyinti nezinye. i-debris, ezi nkunkuma ziya kubangela i-valve yebhabhathane ye-flange enkulu yombane yombane ayinakujikeleziswa kwindawo kwaye ibangele ukuvuza - ukuba i-valve yebhabhathane ye-flange enkulu yombane iyangcwatywa, ukwandisa isikhondo sevalve kuya kuvelisa kwaye siwe umhlwa kunye nokungcola kuphazamisa ivalve. ukujikeleziswa kwebhola endaweni, kubangele ukuvuza kwevalve yebhabhathane ebanzi yombane.

⑧ i-activator jikelele nayo ilinganiselwe, ukuba unobangela wexesha elide lomhlwa, ukuqina kwegrisi okanye ukukhulula iibholiti zomda kuya kwenza umda ungachaneki, okukhokelela ekuvuzeni kwangaphakathi;

⑨ Ivalve yesivusi sombane siseta phambili, esinganxulumananga nendawo ebangela ukuvuza kwangaphakathi;

⑩ ukungabikho kokugcinwa kunye nokugcinwa kwamaxesha ngamaxesha, okukhokelela ekutywinweni kwegrisi eyomileyo, eqinile, eyomisiweyo yokutywina iqokelela kwisitulo sevalve e-elastic, ethintela ukuhamba kwesitulo sevalve, okukhokelela ekungaphumeleli kokutywinwa.

I-ZFA Valve Factory inamaqela aqeqeshiweyo e-QC ukuqinisekisa ukuba ivalve nganye yefektri ngaphakathi kunye nenkangeleko ivakala.Kwangaxeshanye, sinetekhnoloji yobuchwephesha kunye namaqela emva kokuthengisa ukunceda abathengi bacombulule iingxaki ezahlukeneyo esidibana nazo ngexesha lofakelo kunye nokusetyenziswa.