Ukuqonda ama-Butterfly Valves: Abakwenzayo nokuthi Basebenza Kanjani

1.2 Izingxenye eziyisisekelo

Ama-valve ovemvane akhiwa izingxenye eziningana ezibalulekile. Ingxenye ngayinye ibalulekile emsebenzini we-valve.

Umzimba we-valve

Umzimba we-valve ungaqondwa njengegobolondo langaphandle le-valve uvemvane, eligcina zonke ezinye izingxenye. Le ngxenye ifakwe phakathi kwama-flange wepayipi.

Idiski

I-disc isebenza njengesango ngaphakathi kwe-valve futhi iyingxenye yokulawula uketshezi. Le ngxenye iyazungeza ukuze ilawule ukugeleza koketshezi. Ukujikeleza kwe-disc kunquma ukuthi i-valve ivuliwe noma ivaliwe.

isihlalo

Isihlalo se-valve sibekwe phezulu emzimbeni we-valve futhi sinikeza uphawu lwediski ye-valve esimweni esivaliwe. Isihlalo se-valve singenziwa ngezinto ezihlukahlukene, njengerabha, insimbi, noma inhlanganisela yakho kokubili, kuye ngokuthi isicelo.

Isiqu

Isiqu se-valve sixhuma i-disc ku-actuator. Le ngxenye idlulisela ukunyakaza kudiski. Ukujikeleza kwe-stem kulawula ukujikeleza kwediski.

I-Actuator

I-actuator ingaba imanuwali (isibambo noma igiya lezikelemu), i-pneumatic, noma ekagesi, kuye ngezinga lokuzenzekelayo elidingekayo.

 

2. Yenzani ivalve uvemvane? I-valve yevemvane isebenza kanjani?

 

2.1 Ukunyakaza okujikelezayo kwekota

Ama-valve ovemvane asebenzisa ukunyakaza okujikelezayo kwekota. Ukuzungezisa i-disc 90 degrees kuvula noma kuvala i-valve. Lena impendulo esheshayo eshiwo ngenhla. Lesi senzo esilula senza ama-valve ovemvane alungele izinhlelo zokusebenza ezidinga ukulungiswa okusheshayo.

Izinzuzo zalo mnyakazo ziningi. Idizayini iqinisekisa ukusebenza ngokushesha, okubalulekile ezimweni lapho kudingeka khona ukuguqulwa kwama-valve njalo. Ukubumbana kwama-valve ovemvane nakho konga isikhala futhi kunciphisa izindleko zokufakwa. Uzothola la mavalvu engabizi futhi kulula ukuwanakekela.

2.2 Inqubo yokusebenza

Inqubo yokusebenza kwevalve uvemvane ilula. Uvula i-valve ngokuphendula i-actuator ukubeka i-disc parallel ukuya lapho ukugeleza kwamanzi. Lesi simo sivumela uketshezi ukuthi ludlule ngokumelana okuncane. Ukuvala i-valve, uvula i-disc perpendicular ukuya ekuqondisweni kokugeleza kwamanzi, okwenza uphawu futhi uvimbele ukugeleza.

3. Izinhlobo ze-Butterfly Valves

Kunezinhlobo eziningi zama-valve ovemvane, ngayinye yakhelwe izinhlelo zokusebenza ezithile kanye nezimo zokufakwa.

3.1 Amavaluvu Ovemvane Amaphakathi

Idizayini ye-valve butterfly egxilile ilula kakhulu. I-disc kanye nesihlalo kuhambisana nomugqa ophakathi we-valve. Isihlalo se-valve ye-butterfly egxilile senziwe ngezinto ezinwebekayo, ngakho-ke zifaneleka kuphela izicelo zokucindezela okuphansi. Uvamise ukubona ama-valve ovemvane agxile ezinhlelweni zokuphakelwa kwamanzi.

3.2 Amavalvu evemvane ane-eccentric kabili (esebenza kahle kakhulu).

Amavalvu ovemvane ane-eccentric kabili enza kangcono. I-disc isusiwe kusukela ku-centerline ye-valve, inciphisa ukuguga ku-disc kanye nesihlalo futhi ithuthukise uphawu. Lo mklamo ufanelekile ukucindezela okuphezulu. Ama-valve e-eccentric kabili avame ukusetshenziswa ezimbonini ezifana nowoyela negesi.

3.3 Amavalvu evemvane eccentric kathathu

Amavalvu evemvane eccentric kathathu anekhono elihle lokuvala. Ngokusekelwe ku-valve yevemvane eyi-eccentric ephindwe kabili, i-offset yesihlalo yenza i-offset yesithathu, enciphisa ukuthintana nesihlalo ngesikhathi sokusebenza. Lo mklamo unweba impilo yesevisi yawo wonke i-valve uvemvane futhi uqinisekisa uphawu oluqinile. Uzothola ama-valve e-eccentric kathathu ezinhlelweni ezibucayi lapho ukuvuza okunguziro kudingekile emazingeni okushisa aphezulu nezingcindezi.

4. Izici kanye Nezinzuzo Butterfly Valves

4.1 Izici zamavavu ovemvane

Amavalvu ovemvane avula noma avale ngokuphenduka okulula okungama-degree angama-90. Lo mklamo uvumela ukusebenza okusheshayo, okwenza kube kuhle ezimweni lapho kudingeka khona ukulungiswa okusheshayo. Umshini uqinisekisa ukuthi i-valve ivula ngokumelana okuncane, inikeza ukulawula okuphumelelayo kokugeleza.

Ama-valve e-Butterfly nawo anikeza izinzuzo ezihlukahlukene. Uzozithola zisebenza kalula ngenxa yezidingo zazo eziphansi zetorque. Lesi sici senza usayizi we-actuator nokufaka kushibhe. Umklamo uphinde unciphise ukuguga ezingxenyeni ze-valve, ukwandisa impilo yesevisi nokuthembeka.

Amanye ama-valve, njengama-valve esango, ngokuvamile ane-pressure yehla futhi adinga ukulungiswa okwengeziwe. Futhi ungase uthole ukuthi ama-valve esango awakufanelekeli ukusebenza ngokushesha nangokuvamile, iphuzu eliye lashiwo kwenye indawo. Amavalve ovemvane ahamba phambili kulezi zindawo, okuwenza abe yintandokazi ezimbonini eziningi.

4.2 Ukuqhathanisa namanye amavalvu

Uma uqhathanisa ama-valve ovemvane nezinye izinhlobo zama-valve, uzobona umehluko omncane obalulekile.

4.2.1 Ikhava yezinyawo ezincane

Amavalvu ovemvane ahlangene kakhudlwana, angasindi, futhi anobude obufushane besakhiwo, ngakho angena kunoma iyiphi indawo.

4.2.2 Izindleko Eziphansi

Amavalvu ovemvane asebenzisa izinto ezingavuthiwe ezincane, ngakho-ke izindleko zempahla eluhlaza ngokuvamile ziphansi kunamanye amavalvu. Futhi izindleko zokufaka nazo ziphansi.

4.2.3 Idizayini Engasindi

I-valve ye-butterfly ilula ngoba inikeza izinto ezihlukahlukene ongakhetha kuzo. Ungakhetha ama-butterfly valves enziwe ngezinto ezihlala isikhathi eside njenge-ductile iron, WCB noma insimbi engagqwali. Lezi zinto zinokumelana okuhle kakhulu nokugqwala. Imvelo engasindi yezinto futhi yenza kube lula ukusebenza nokuyifaka.

Idizayini engasindi ithinta kakhulu ukufakwa. Ama-valve ovemvane kulula ukuwafaka ngenxa yokuncipha kosayizi nesisindo. Lesi sici sinciphisa isidingo semishini yokuphakamisa esindayo.

4.2.4 Ingabizi

Ama-valve ovemvane ayinketho engabizi kakhulu yokulawula uketshezi. I-valve ye-butterfly inamaqembu ambalwa angaphakathi, idinga impahla encane kanye nomsebenzi wokukhiqiza, futhi yehlise izindleko zokunakekela, okunciphisa izindleko zizonke. Uzothola ukuthi ama-butterfly valves ayinketho yokonga yokutshalwa kwezimali kokuqala nokusebenza kwesikhathi eside.

4.2.5 Ukuvalwa okuqinile

Ukubekwa uphawu okuqinile kuyisici esivelele samavalve ovemvane. Uphawu oluphephile lugcina ubuqotho besistimu futhi luvimbela ukulahlekelwa uketshezi.

Idiski nesihlalo zisebenza ndawonye ukwakha ukuvuza okuphelele okungu-0. Ikakhulukazi, ama-valve ama-butterfly ama-triple offset aqinisekisa ukuthi ama-valve asebenza kahle ngisho nasezingcindezini eziphezulu.

5. Ukuhlukahluka kwezicelo ze-butterfly valve

Ama-valve ovemvane ayakhanya ngenxa yokuguquguquka kwawo. Zingatholakala noma kuphi lapho kudingeka khona ukulawula okuthembekile.

Ama-valve e-butterfly asebenza ezimbonini eziningi. Izinhlelo zokuhlinzeka ngamanzi, izindawo zokuhlanza indle ziyazuza ekuthembekeni kwazo. Imboni kawoyela negesi incike kumavalvu ovemvane ukuphatha uketshezi oluhlukene. Amasistimu okuvikela umlilo asebenzisa ama-valve ovemvane ukuze aphendule ngokushesha. Imboni yamakhemikhali iwasebenzisela ukulawula ngokunembile izinto eziyingozi. Izikhungo zokuphehla amandla zithembele kumavalvu ovemvane ukuze zisebenze kahle.

Lezi zibonelo zibonisa indlela ama-valve ovemvane ahlangabezana ngayo nezidingo ezihlukene zezimboni ezihlukahlukene. Ungathemba ama-valve evemvane ukuze anikeze ukusebenza okuthembekile kunoma yiluphi uhlelo lokusebenza.

6. Izinzuzo zokusebenzisa i-ZFA butterfly valves

6.1 Izindleko ezehlisiwe

Inzuzo yezindleko ze-ZFA butterfly valves akusho ukunciphisa ukusetshenziswa kwezinto. Kunalokho, isebenzisa umphakeli ozinzile wezinto ezingavuthiwe, isipiliyoni sokukhiqiza esicebile, kanye nesistimu yokukhiqiza evuthiwe ukunciphisa izindleko zabasebenzi.

6.2 Izinzuzo zezezimali zesikhathi eside

Izinto ezisetshenziswa kumavalvu ovemvane e-ZFA ziyiqiniso, zinemizimba yamavalvu aminyene, izihlalo zevalvu zenjoloba zemvelo ezimsulwa, kanye neziqu zamavalvu ensimbi engenasici. Lokhu kuqinisekisa impilo yesevisi ende futhi kunciphisa isidingo sokushintshwa. Akusizi kuphela ukunciphisa izidingo zokunakekela, kodwa futhi kunciphisa izindleko zokusebenza eziqhubekayo.

6.3 Isevisi ephelele ngemva kokuthengisa

Abakhiqizi be-valve butterfly be-Zfa banikeza isikhathi sewaranti esingafika ezinyangeni ezingu-18 (kusukela ngosuku lokuthunyelwa).

6.3.1 Isikhathi sewaranti

Imikhiqizo yethu yamavalvu ovemvane ijabulela isiqinisekiso sekhwalithi yezinyanga eziyi-12 kusukela ngedethi yokuthenga. Ngalesi sikhathi, uma umkhiqizo utholakala unephutha noma wonakele ngenxa yezinkinga zezinto ezibonakalayo noma zenqubo yokukhiqiza, gcwalisa ifomu lesevisi (kuhlanganise nenombolo ye-invoyisi, incazelo yenkinga nezithombe ezihlobene), futhi sizohlinzeka ngokulungiswa kwamahhala noma isevisi yokushintshanisa.

6.3.2 Ukwesekwa kwezobuchwepheshe

Sinikeza ukwesekwa kobuchwepheshe okukude, okuhlanganisa isiqondiso sokufakwa komkhiqizo, ukuqeqeshwa kokusebenza kanye nezincomo zokulungisa. Sizophendula emahoreni angama-24.

6.3.3 Isevisi yasendaweni

Ezimweni ezikhethekile, uma kudingeka ukwesekwa endaweni, ochwepheshe bethu bazohlela uhambo ngokushesha okukhulu.