Ukuqonda iiValve zeButterfly: Oko Zenzayo kunye nendlela Ezisebenza Ngayo

1.2 Izinto ezisisiseko

Iivalvu zebhabhathane zenziwe ngezinto ezibalulekileyo ezininzi. Icandelo ngalinye libalulekile kumsebenzi wevalvu.

Umzimba wevalvu

Umzimba wevalvu unokuqondwa njengeqokobhe langaphandle levalvu yebhabhathane, eligcina zonke ezinye izinto. Eli candelo lifakwe phakathi kweeflange zepayipi.

Idiski

Idiski isebenza njengesango ngaphakathi kwevalvu kwaye yinxalenye yolawulo lolwelo. Le nxalenye iyajikeleza ukulawula ukuhamba kolwelo. Ukujikeleza kwediski kumisela ukuba ivalvu ivuliwe okanye ivaliwe.

isihlalo

Isihlalo sevalvu sibekwe phezu komzimba wevalvu kwaye sinika isitywino sediski yevalvu xa ivaliwe. Isihlalo sevalvu singenziwa ngezinto ezahlukeneyo, ezifana nerabha, isinyithi, okanye indibaniselwano yazo zombini, kuxhomekeke kwisicelo.

Isiqu

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

I-Actuator

I-actuator ingaba yesandla (isixhobo sokuphatha okanye isixhobo se-worm), esomoya, okanye esombane, kuxhomekeke kwinqanaba le-automation elifunekayo.

 

2. Yintoni eyenziwa yivalvu yebhabhathane? Isebenza njani ivalvu yebhabhathane?

 

2.1 Intshukumo yokujikeleza ngekota

Iivalvu zebhabhathane zisebenzisa intshukumo yokujikeleza yekota. Ukujikeleza idiski ngama-90 degrees kuvula okanye kuvala ivalvu. Le yindlela ekhawulezayo echazwe apha ngasentla. Le ntshukumo ilula yenza iivalvu zebhabhathane zilungele ukusetyenziswa ezifuna ukulungiswa ngokukhawuleza.

Iingenelo zale ntshukumo zininzi. Uyilo luqinisekisa ukusebenza ngokukhawuleza, nto leyo ibalulekileyo kwiimeko apho kufuneka utshintsho rhoqo lweevalvu. Ubunzima beevalvu zeebhabhathane bukonga indawo kwaye kunciphisa iindleko zokufakela. Uya kuzifumana ezi valve zingabizi kakhulu kwaye kulula ukuzilungisa.

2.2 Inkqubo yokusebenza

Inkqubo yokusebenza kwevalvu yebhabhathane ilula. Uvula ivalvu ngokujika i-actuator ukuze ibeke idiski kwindawo ehambelana necala lokuhamba kwamanzi. Le ndawo ivumela ulwelo ukuba ludlule ngaphandle kokumelana okukhulu. Ukuze uvale ivalvu, ujika idiski ijikeleze kwicala lokuhamba kwamanzi, nto leyo edala ukutywina nokuvala ukuhamba kwamanzi.

3. Iintlobo zeeValve zeButterfly

Kukho iintlobo ezininzi zeevalvu zebhabhathane, nganye yenzelwe ukusetyenziswa okuthile kunye neemeko zokufakelwa.

3.1 Iivalvu zebhabhathane eziqinileyo

Uyilo lwevalvu yebhabhathane engqongo lulula kakhulu. Idiski kunye nesihlalo zilungelelaniswe kumgca ophakathi wevalvu. Isihlalo sevalvu yebhabhathane engqongo senziwe ngezinto ezithambileyo, ngoko ke zilungele kuphela ukusetyenziswa koxinzelelo oluphantsi. Uhlala ubona iivalvu zebhabhathane ezingqongo kwiinkqubo zokuhambisa amanzi.

3.2 Iivalvu zebhabhathane ezingaqhelekanga (ezisebenza kakhulu) ezimbini

Iivalvu zebhabhathane ezi-eccentric ezimbini zisebenza ngcono. Idiski isuswe kumgca ophakathi wevalvu, nto leyo enciphisa ukuguguleka kwediski kunye nesihlalo kwaye iphucula isitywino. Olu yilo lufanelekile kuxinzelelo oluphezulu. Iivalvu zebhabhathane ezi-eccentric ezimbini zihlala zisetyenziswa kumashishini afana neoyile negesi.

3.3 Iivalvu zebhabhathane ezingaqhelekanga ezintathu

Iivalvu zebhabhathane ezi-eccentric ezintathu zinamandla amahle okuvala. Ngokusekelwe kwivalvu yebhabhathane e-eccentric ezimbini, ukuvala kwesihlalo kwenza ukuvala kwesithathu, okunciphisa ukudibana nesihlalo ngexesha lokusebenza. Olu yilo lwandisa ubomi benkonzo yevalvu yebhabhathane yonke kwaye luqinisekisa ukuvala okuqinileyo. Uza kufumana iivalvu ezintathu ezi-eccentric kwiindawo ezibalulekileyo apho kufuneka kungavuzi manzi xa kushushu kakhulu kwaye kuxinezelekile.

4. Iimpawu kunye neenzuzo zeevalvu zebhabhathane

4.1 Iimpawu zeeValve zeButterfly

Iivalvu zebhabhathane ziyavuleka okanye zivalwe ngokujika okulula kwama-degree angama-90. Olu yilo luvumela ukusebenza ngokukhawuleza, nto leyo eyenza ukuba ilungele iimeko apho kufuneka uhlengahlengiso olukhawulezileyo. Le ndlela iqinisekisa ukuba ivalvu ivuleka ngokumelana okuncinci, inika ulawulo olusebenzayo lokuhamba kwamanzi.

Iivalvu zebhabhathane zikwabonelela ngeenzuzo ezahlukeneyo. Uza kuzifumana kulula ukuzisebenzisa ngenxa yeemfuno zazo ze-torque ephantsi. Olu phawu lwenza ubungakanani be-actuator kunye nofakelo lungabizi kakhulu. Uyilo lukwanciphisa ukuguguleka kwezixhobo zeevalvu, nto leyo eyandisa ubomi benkonzo kunye nokuthembeka.

Ezinye iivalvu, ezifana neevalvu zesango, zihlala zinexinzelelo oluphezulu kwaye zifuna ukulungiswa okungakumbi. Kwaye ungafumanisa ukuba iivalvu zesango azifanelekanga kangako ekusebenzeni ngokukhawuleza nangokuqhubekayo, into ekhankanyiweyo kwenye indawo. Iivalvu zebhabhathane ziyagqwesa kwezi ndawo, nto leyo eyenza ukuba zibe lukhetho oludumileyo kumashishini amaninzi.

4.2 Uthelekiso nezinye iivalvu

Xa uthelekisa iivalvu zebhabhathane nezinye iintlobo zeevalvu, uya kubona umahluko obalulekileyo.

4.2.1 Isigqubuthelo seenyawo esincinci

Iivalvu zebhabhathane zincinci ngakumbi, zikhaphukhaphu, kwaye zinobude obufutshane bolwakhiwo, ngoko ke zingena nakweyiphi na indawo.

4.2.2 Ixabiso eliphantsi

Iivalvu zebhabhathane azisebenzisi zinto ziluhlaza kangako, ngoko ke ixabiso lezinto eziluhlaza lidla ngokuba liphantsi kunezinye iivalvu. Kwaye nexabiso lokufakela liphantsi.

4.2.3 Uyilo oluKhaphukhaphu

Ivalvu yebhabhathane ilula kuba ineendlela ezahlukeneyo zokukhetha izinto. Ungakhetha iivalvu zebhabhathane ezenziwe ngezinto ezihlala ixesha elide ezifana nentsimbi ethambileyo, i-WCB okanye intsimbi engatyiwayo. Ezi zinto zinokumelana nokugqwala okugqwesileyo. Ukukhanya kwazo kwenza kube lula ukuzisebenzisa nokuzifaka.

Uyilo olulula luchaphazela kakhulu ukufakwa. Iivalvu zebhabhathane kulula ukuzifaka ngenxa yobukhulu bazo obuphantsi kunye nobunzima bazo. Olu phawu lunciphisa isidingo sezixhobo zokuphakamisa izinto ezinzima.

4.2.4 Ixabiso elifanelekileyo

Iivalvu zebhabhathane zezona zikhetho zingabizi kakhulu zokulawula ulwelo. Iivalvu zebhabhathane zineqela elincinci langaphakathi, azifuni zinto zininzi kunye nomsebenzi omninzi ukuze zenziwe, kwaye zineendleko zokulungisa eziphantsi, nto leyo enciphisa iindleko zizonke. Uza kufumanisa ukuba iivalvu zebhabhathane ziyindlela engabizi kakhulu yotyalo-mali lokuqala kunye nokusebenza ixesha elide.

4.2.5 Ukuvalwa okuqinileyo

Ukuvala ngokuqinileyo luphawu olubalaseleyo lweevalvu zebhabhathane. Ukuvala okukhuselekileyo kugcina inkqubo iqinile kwaye kuthintela ukulahleka kolwelo.

Idiski kunye nesihlalo zisebenza kunye ukwenza ukuvuza okupheleleyo kwe-0. Ngokukodwa, iivalvu zebhabhathane ezi-triple offset ziqinisekisa ukuba iivalvu zisebenza ngokufanelekileyo nokuba ziphantsi koxinzelelo oluphezulu.

5. Ukuguquguquka kwezicelo zeevalvu zebhabhathane

Iivalvu zebhabhathane ziyakhanya ngenxa yokuguquguquka kwazo. Zifumaneka naphi na apho kufuneka ulawulo lolwelo oluthembekileyo.

Iivalvu zeebhabhathane zisebenzela uluhlu olubanzi lwamashishini. Iinkqubo zokubonelela ngamanzi, izityalo zonyango lwelindle ziyazuza ngokuthembeka kwazo. Ishishini leoyile negesi lixhomekeke kwiivalvu zeebhabhathane ukuphatha ulwelo olwahlukeneyo. Iinkqubo zokukhusela umlilo zisebenzisa iivalvu zeebhabhathane ukuze ziphendule ngokukhawuleza. Ishishini leekhemikhali lizisebenzisa ukulawula ngokuchanekileyo izinto ezinobungozi. Izibonelelo zokuvelisa umbane zixhomekeke kwiivalvu zeebhabhathane ukuze zisebenze kakuhle.

Le mizekelo ibonisa indlela iivalvu zebhabhathane ezihlangabezana ngayo neemfuno ezahlukeneyo zamashishini ahlukeneyo. Ungathemba iivalvu zebhabhathane ukuba zibonelela ngokusebenza okuthembekileyo kuyo nayiphi na indlela yokusebenza.

6. Iingenelo zokusebenzisa iivalvu zebhabhathane ze-ZFA

6.1 Iindleko ezincitshisiweyo

Inzuzo yexabiso leevalvu zebhabhathane zeZFA ayithethi ukunciphisa ukusetyenziswa kwezinto. Endaweni yoko, isebenzisa umthengisi ozinzileyo wezinto ezikrwada, amava emveliso atyebileyo, kunye nenkqubo yemveliso evuthiweyo ukunciphisa iindleko zabasebenzi.

6.2 Iingenelo zemali zexesha elide

Izinto ezisetyenziswa kwiivalvu zebhabhathane zeZFA zezokwenyani, zinemizimba yeevalvu etyebileyo, izihlalo zeevalvu zerabha zendalo ezicocekileyo, kunye neziqu zeevalvu zentsimbi engagqwaliyo ezicocekileyo. Oku kuqinisekisa ubomi benkonzo ende kwaye kunciphisa isidingo sokutshintshwa. Akuncedi nje kuphela ekunciphiseni iimfuno zolondolozo, kodwa kunciphisa neendleko zokusebenza eziqhubekayo.

6.3 Inkonzo egqibeleleyo emva kokuthengisa

Abavelisi beevalvu zebhabhathane zeZfa banikezela ngewaranti yexesha elingangeenyanga ezili-18 (ukususela kumhla wokuthunyelwa).

6.3.1 Ixesha lewaranti

Iimveliso zethu ze-butterfly valve zinesiqinisekiso somgangatho seenyanga ezili-12 ukususela ngomhla wokuthenga. Ngeli xesha, ukuba imveliso ifunyenwe inesiphene okanye yonakele ngenxa yeengxaki zezinto okanye inkqubo yokwenziwa kwayo, gcwalisa ifomu yenkonzo (kubandakanya inombolo ye-invoyisi, inkcazo yengxaki kunye neefoto ezinxulumene nayo), kwaye siya kubonelela ngenkonzo yokulungisa okanye yokutshintsha simahla.

6.3.2 Inkxaso yobugcisa

Sinikezela ngenkxaso yobugcisa ekude, kubandakanya isikhokelo sokufakelwa kwemveliso, uqeqesho lokusebenza kunye neengcebiso zokugcinwa kwayo. Siza kuphendula zingadlulanga iiyure ezingama-24.

6.3.3 Inkonzo yangaphakathi

Kwiimeko ezikhethekileyo, ukuba kufuneka inkxaso kwindawo yokusebenza, iingcali zethu ziya kulungiselela uhambo ngokukhawuleza.