Ukuqonda iiValuvu zeButterfly: Yintoni abayenzayo kunye nendlela esebenza ngayo

1.2 Amacandelo asisiseko

Iivalve zebhabhathane zenziwe ngamacandelo aphambili aliqela. Icandelo ngalinye liyimfuneko kumsebenzi we-valve.

Umzimba wevalvu

Umzimba wevalvu unokuqondwa njengeqokobhe langaphandle levalve yebhabhathane, egcina onke amanye amalungu. Eli candelo lifakwe phakathi kweeflange zepayipi.

Icwecwe

I-disc isebenza njengesango ngaphakathi kwevalve kwaye iyinxalenye yokulawula ulwelo. Eli candelo lijikeleza ukulawula ukuhamba kwamanzi. Ukujikeleza kwediski kugqiba ukuba i-valve ivuliwe okanye ivaliwe.

isihlalo

Isihlalo sevalve sibekwe ngaphezulu kumzimba wevalve kwaye sibonelela ngesitywina sediski yevalve kwimeko evaliweyo. Isihlalo sevalve sinokwenziwa ngezinto ezahlukeneyo, njengerabha, isinyithi, okanye indibaniselwano yazo zombini, kuxhomekeke kwisicelo.

Isiqu

Isiqu sevalve sidibanisa idiski kwi-actuator. Eli candelo lidlulisela intshukumo kwidiski. Ukujikeleza kwesiqu kulawula ukujikeleza kwediski.

I-Actuator

I-actuator ingaba yi-manual (isibambo okanye i-worm gear), i-pneumatic, okanye i-electric, kuxhomekeke kwinqanaba lokuzenzekelayo elifunekayo.

 

2. Yenza ntoni ivalve yebhabhathane? Isebenza njani ivalve yebhabhathane?

 

2.1 Intshukumo ejikelezayo yekota

Izivalo zebhabhathane zisebenzisa intshukumo ejikelezayo yekota. Ukujikeleza i-disc 90 degrees ivula okanye ivale ivalve. Le yimpendulo ekhawulezayo ekhankanywe ngasentla. Esi senzo silula senza iivalve zebhabhathane zilungele izicelo ezifuna uhlengahlengiso olukhawulezayo.

Iinzuzo zesi sindululo zininzi. Uyilo luqinisekisa ukusebenza ngokukhawuleza, okubalulekileyo kwiimeko apho kufuneka utshintsho lwevalve rhoqo. Ukuxinana kweevalvu zebhabhathane nako konga indawo kwaye kunciphisa iindleko zokufakela. Uya kufumana ezi zivalo zingabizi kwaye kulula ukuzigcina.

2.2 Inkqubo yokusebenza

Inkqubo yokusebenza kwevalve yebhabhathane ilula. Uvula ivalve ngokuguqula i-actuator ukubeka idiskhi ngokuhambelana necala lokuhamba kwamanzi. Esi sikhundla sivumela ulwelo ukuba ludlule ngokuxhathisa okuncinci. Ukuvala i-valve, ujika i-disc perpendicular ukuya kwicala lokuhamba kwamanzi, okwenza isitywina kwaye ivimbele ukuhamba.

3. Iindidi zeeVavu zebhabhathane

Kukho iintlobo ezininzi zeevalve zebhabhathane, nganye eyenzelwe izicelo ezithile kunye neemeko zokufakela.

3.1 IiValuvu zeBhavane eziPhambili

Uyilo lwevalve yebhabhathane egxile lulula kakhulu. I-disc kunye nesihlalo zihambelana nomgca ophakathi wevalve. Isihlalo sevalve ye-butterfly egxininisiweyo senziwe nge-elastic material, ngoko ke ifanelekile kuphela kwizicelo zoxinzelelo oluphantsi. Uhlala ubona iivalve zebhabhathane ezigxininisiweyo kwiinkqubo zokubonelela ngamanzi.

3.2 Izivalo zebhabhathane ezigqwesileyo ngokuphindwe kabini (ezisebenza kakhulu).

Iivalvu zebhabhathane eccentric kabini zisebenza ngcono. I-disc ikhutshwe kwi-centerline ye-valve, ukunciphisa ukugqoka kwi-disc kunye nesihlalo kunye nokuphucula isitywina. Olu luyilo lufanelekile kuxinzelelo oluphezulu. Iivalvu eziphindwe kabini zidla ngokusetyenziswa kumashishini afana neoyile negesi.

3.3 Iivalvu zebhabhathane ezithathu

Iivalvu zebhabhathane ezithathu zinamandla abalaseleyo okutywina. Ngokusekwe kwivalve yebhabhathane ephindwe kabini, i-offset yesihlalo yenza i-offset yesithathu, ukunciphisa ukunxibelelana nesitulo ngexesha lokusebenza. Olu luyilo lwandisa ubomi benkonzo yevalve yebhabhathane yonke kwaye iqinisekisa isitywina esiqinileyo. Uya kufumana iivalvu eziphindwe kathathu ze-eccentric kwizicelo ezibalulekileyo apho kufuneka i-zero ukuvuza kumaqondo obushushu aphezulu kunye noxinzelelo.

4. Iimpawu kunye nokuNzuzwa kweeValuvu zeButterfly

4.1 Iimpawu zeeValuvu zeButterfly

Iivalve zebhabhathane zivula okanye zivale ngokujika okulula kwe-90-degree. Olu luyilo luvumela ukusebenza ngokukhawuleza, okwenza kube lula kwiimeko apho kufuneka uhlengahlengiso olukhawulezayo. Inkqubo iqinisekisa ukuba i-valve ivula ngokuchasana okuncinci, inika ulawulo olusebenzayo lokuhamba.

Iivalve zebhabhathane nazo zibonelela ngeenzuzo ezahlukeneyo. Uya kuzifumana kulula ukuzisebenzisa ngenxa yeemfuno zabo zetorque ephantsi. Olu phawu lwenza ubungakanani be-actuator kunye nofakelo lungabizi mali ininzi. Uyilo kwakhona kunciphisa ukunxiba kumacandelo evalvu, ukwandisa ubomi benkonzo kunye nokuthembeka.

Ezinye iivalve, ezinjengeevalve zesango, zihlala zinexinzelelo oluphezulu kwaye zifuna ukugcinwa okungakumbi. Kwaye unokufumanisa ukuba iivalve zesango azifanelekanga ukuba zisebenze ngokukhawuleza kwaye rhoqo, inqaku elikhankanywe kwenye indawo. Iivalve zebhabhathane ziyagqwesa kwezi ndawo, nto leyo ezenza zibe lukhetho oludumileyo kumashishini amaninzi.

4.2 Ukuthelekisa nezinye iivalvu

Xa uthelekisa iivalve zebhabhathane kwezinye iindidi zeevalvu, uya kuqaphela iiyantlukwano ezimbalwa eziphambili.

4.2.1 Uqweqwe lonyawo oluncinci

Iivalve zebhabhathane zixinene ngakumbi, zikhaphukhaphu, kwaye zinobude obufutshane besakhiwo, ngoko ke zingena nakweyiphi na indawo.

4.2.2 Iindleko eziphantsi

Iivalvu zebhabhathane zisebenzisa imathiriyeli ekrwada encinci, ngoko ke iindleko zemathiriyeli ekrwada zihlala zisezantsi kunezinye iivalvu. Kwaye iindleko zokufakela nazo ziphantsi.

4.2.3 Uyilo oluKhala

Ivalve yebhabhathane ikhaphukhaphu kuba ibonelela ngezinto ezahlukeneyo onokukhetha kuzo. Unokukhetha iivalve zebhabhathane ezenziwe ngezinto ezihlala zihleli njengentsimbi ye-ductile, i-WCB okanye insimbi engenasici. Ezi zixhobo zinokumelana nokugqwesa okugqwesileyo. Ubume obukhaphukhaphu bezinto eziphathekayo zenza kube lula ukusebenza kunye nokufaka.

Uyilo olulula luchaphazela kakhulu ukufakela. Iivalve zebhabhathane kulula ukuzifaka ngenxa yokuncipha kobungakanani kunye nobunzima. Olu phawu lunciphisa isidingo sezixhobo zokuphakamisa ubunzima.

4.2.4 Ukonga iindleko

Iivalvu zebhabhathane lolona khetho lungabizi kakhulu kulawulo lolwelo. Ivalve yebhabhathane inamaqela ambalwa angaphakathi, ifuna izinto ezincinci kunye nomsebenzi wokuvelisa, kwaye inciphise iindleko zokulondolozwa, ezinciphisa iindleko zizonke. Uya kufumanisa ukuba iivalve zebhabhathane zilukhetho lwezoqoqosho kutyalo-mali lokuqala kunye nokusebenza kwexesha elide.

4.2.5 Ukutywinwa okuqinileyo

Ukutywinwa okuqinileyo luphawu olubalaseleyo lweevalvu zebhabhathane. Isitywina esikhuselekileyo sigcina ingqibelelo yenkqubo kwaye sithintela ukulahleka kwamanzi.

Idiski kunye nesihlalo zisebenza kunye ukwenza i-0 ukuvuza okugqibeleleyo. Ngokukodwa, iivalve ze-butterfly ze-triple offset ziqinisekisa ukuba iivalve zisebenza ngokufanelekileyo nakuxinzelelo oluphezulu.

5. Ukuguquguquka kokusetyenziswa kwevalve yebhabhathane

Iivalve zebhabhathane ziyakhazimla ngenxa yokuguquguquka kwazo. Zinokufumaneka naphi na apho kufuneka ulawulo oluthembekileyo.

Iivalve zebhabhathane zisebenza kuluhlu olubanzi lwamashishini. Iinkqubo zokubonelela ngamanzi, iindawo zokucocwa kwamanzi amdaka zizuza ekuthembekeni kwazo. Ishishini leoli negesi lixhomekeke kwiivalvu zebhabhathane ukuphatha ulwelo olwahlukileyo. Iinkqubo zokukhusela umlilo zisebenzisa iivalve zebhabhathane ukuphendula ngokukhawuleza. Ishishini lemichiza lizisebenzisa ukulawula ngokuchanekileyo izinto eziyingozi. Izibonelelo zokuvelisa amandla zixhomekeke kwiivalvu zebhabhathane ukuze zisebenze kakuhle.

Le mizekelo ibonisa indlela izivalo zebhabhathane ezihlangabezana ngayo neemfuno ezahlukeneyo zamashishini. Unokuthembela kwiivalve zebhabhathane ukubonelela ngokusebenza okuthembekileyo kuyo nayiphi na isicelo.

6. Izinto eziluncedo zokusebenzisa izivalo zebhabhathane zeZFA

6.1 Iindleko ezicuthiweyo

Inzuzo yeendleko ze-ZFA butterfly valves ayithethi ukunciphisa ukusetyenziswa kwezinto. Endaweni yoko, isebenzisa umthengisi ozinzileyo wezinto eziluhlaza, amava emveliso etyebileyo, kunye nenkqubo yokuvelisa evuthiweyo ukunciphisa iindleko zabasebenzi.

6.2 Iinzuzo zemali zexesha elide

Izinto ezisetyenziswa kwiivalvu zebhabhathane zeZFA ziyinyani, zinemizimba yevalve etyebileyo, izihlalo zevalvu yerubha yendalo esulungekileyo, kunye nezikhondo zentsimbi ecocekileyo. Oku kuqinisekisa ubomi benkonzo obude kwaye kunciphisa imfuno yokutshintshwa. Akukuncedi kuphela ukunciphisa iimfuno zokugcina, kodwa kunciphisa iindleko zokusebenza eziqhubekayo.

6.3 Inkonzo egqibeleleyo emva kokuthengisa

Abavelisi bevalve ye-butterfly ye-Zfa banikezela ixesha lewaranti ukuya kwiinyanga ezili-18 (ukususela kumhla wokuthunyelwa).

6.3.1 Ixesha lewaranti

Iimveliso zethu zevalve yebhabhathane zonwabela isiqinisekiso somgangatho weenyanga ezili-12 ukusuka kumhla wokuthenga. Ngeli xesha, ukuba imveliso ifunyenwe iphosakele okanye yonakaliswe ngenxa yezinto eziphathekayo okanye iingxaki zenkqubo yokuvelisa, gcwalisa ifom yenkonzo (kubandakanywa nenombolo ye-invoyisi, inkcazo yengxaki kunye neefoto ezinxulumene nazo), kwaye siya kubonelela ngokulungiswa kwamahhala okanye ukutshintshwa kwenkonzo.

6.3.2 Inkxaso yobugcisa

Sinikezela ngenkxaso yobugcisa ekude, kubandakanywa isikhokelo sofakelo lwemveliso, uqeqesho lokusebenza kunye neengcebiso zokugcinwa. Siza kuphendula kwiiyure ezingama-24.

6.3.3 Inkonzo yasemsebenzini

Kwiimeko ezikhethekileyo, ukuba inkxaso ye-site iyafuneka, amagcisa ethu aya kulungiselela uhambo ngokukhawuleza.