Intshayelelo:

Ekusetyenzisweni kwansuku zonke kwabasebenzisi abakhulu bevalve yebhabhathane, sihlala sibonakalisa ingxaki, oko kukuthi, ivalve enkulu yebhabhathane esetyenziselwa uxinzelelo lokwahlukana yimithombo yeendaba enkulu, efana nomphunga, uxinzelelo lwamanzi oluphezulu kunye nomnye umsebenzi ocinezelekileyo, kudla ngokuba nzima ukuvala, kungakhathaliseki ukuba kunzima kangakanani ukuvala, kusoloko kufunyenwe ukuba kuya kubakho ukuvuza, kunzima ukuvala ngokuqinileyo okubangelwa yingxaki ye-valve kunye nesiphumo soyilo. inqanaba le torque yemveliso 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 ngokuthe tye utyhala ivili lesandla ukuze ujikeleze, ukuze i-valve flap ihle ijonge ezantsi ukuphumeza ukuvala, okufunekayo ukoyisa indibaniselwano 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 kwimeko evaliweyo, i-axial thrust force iphantse isondele kuxinzelelo lwangempela lombhobho wombhobho (ngenxa yokuvalwa kwe-P1-P2 ≈ P1, P2 = 0)

Ukuba ivalve yebhabhathane ye-DN200 isetyenziswe kumbhobho womphunga we-10bar, kuphela i-axial thrust yokuqala yokuvala i-Fa = 10 × πr2 = 3140kg, kunye namandla ajikelezayo ajikelezayo afunekayo ekuvaleni asondele kumda we-horizontal circumferential force enokuthi ibe yimveliso kwi-valve evaliweyo phantsi kweemeko eziqhelekileyo ezisebenza kumntu onjalo kakhulu.

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 ivaliwe, iya kubangela umonakalo kwisihlalo se-valve, ngaloo ndlela ikhokelela ekuvuzeni kwangaphakathi;

⑥ I-Welding slag kunye nezinye iintsalela zokwakha ezibangelwa yimikrwelo engaphezulu yokutywinwa;

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 sixhaphakileyo kukuba umphathi wemisebenzi ethathela ingqalelo iindleko zogcino ezibiza kakhulu ubukhulu bombane weflange ivalve yebhabhathane ayilwenzi ulungiso, okanye ukunqongophala kwesayensi enkulu yombane yeflange yolawulo lwevalve yebhabhathane kunye neendlela zokugcinwa kombane omkhulu webhabhathane ivalve yebhabhathane ayilwenzi ulungiso lothintelo, okukhokelela kukusilela kwesixhobo 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 bombane ubukhulu becala zinebloko yokumisa isiqu, ukuba zisetyenziswe ixesha elide, ngenxa yomhlwa kunye nokugqwala kunye nezinye izizathu phakathi kwesiqu kunye ne-stem stop stop block ziya kuqokelela umhlwa, uthuli, ipeyinti kunye nolunye udoti, ezi nkunkuma ziya kubangela umbane omkhulu wobubanzi bombane weflange kwivalve yebhabhathane ejikelezayo ukuba indawo yebhabhathane ejikelezayo ayinakwenzeka Ivalve yebhabhathane yeflange iyaNgcwatywa, ukwandiswa kwesikhondo sevalve kuya kuvelisa kwaye siwe umhlwa ngakumbi kwaye ukungcola kuthintele ukujikeleziswa kwebhola yevalve endaweni, okukhokelela ekuvuzekeni kwevalve yebhabhathane edayamitha enkulu 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.