Eshabhuni yakamuva yokulungisa amanzi, othile ungibuze umbono wami mayelana nevalvu yokuhlukanisa emugqeni wokudonsa amanzi nokuthi ingabe kuyimpoqo ukusebenzisa amavalvu ebhola abiza kakhulu uma kuqhathaniswa namavalvu ovemvane ashibhile. Umsuka wale nkinga usemiphumeleni emibi yesiphithiphithi emgqeni wokumunca iphampu. Ingxabano yokusebenzisa i-valve yebhola njenge-valve yokuhlukanisa yomugqa wokungenisa ukuthi lapho i-valve yebhola ivuliwe, imbobo yonke ye-valve ingasetshenziselwa ukugeleza kwamafutha. Ngakho-ke, uma ufaka i-valve yebhola engu-2-intshi emgqeni wokungena we-2-intshi, lapho i-valve ivuliwe, izobonakala ingekho (okungenani ukusuka endaweni yokubuka amafutha).
Ngakolunye uhlangothi, i-valve uvemvane ayigcwele izimbobo. Ngisho noma ivuliwe ngokugcwele, isimo se-butterfly sizohlala emgodini futhi sibonise ukuvinjelwa okuyingxenye, okungavamile. Lokhu kungabangela isiyaluyalu, esingabangela umoya oncibilikisiwe ukuba uphume esixazululweni emugqeni wokudla. Uma lokhu kwenzeka, lawa mabhamuza azoqhuma lapho evezwe kungcindezi endaweni yepompo. Ngamanye amazwi, ama-butterfly valves angabangela i-cavitation.
Ngakho yikuphi okungcono kakhulu: i-valve yebhola noma i-butterfly valve? Yebo, njengezinkinga eziningi ngama-hydraulics, kuya ngokuya. Ezweni elikahle, ngihlale ngikhetha ivalve yebhola ngaphambi kwevalve uvemvane. Epayipini lokungena elinobubanzi obukhulu obungama-intshi angu-3, cishe akukho ukulahlekelwa kwezindleko ekwenzeni kanjalo.
Kodwa uma uthola ama-intshi angu-4, ama-intshi angu-6 nama-intshi angu-8 ububanzi, ama-valve ebhola abiza kakhulu uma kuqhathaniswa namavalve ovemvane. Ziphinde zithathe isikhala esiningi, ikakhulukazi phakathi nobude bonke. Ngakho-ke, ezinhlelweni zokusebenza zeselula, isibonelo, akukhona nje kuphela ukuthi izindleko ze-valve yebhola enobubanzi obukhulu ziphakeme ngendlela enqatshelwe, kodwa kungase kungabi khona isikhala esanele phakathi kwe-tank ne-pump yokuyifaka.
Kukhona inketho yesithathu. Abantu abaningi bakholelwa ngephutha ukuthi i-valve yokuhlukanisa umugqa wokuthatha ibalulekile, kodwa empeleni akunjalo, kodwa kukhona okuhlukile okumbalwa.
Umbuzo wokuqala olandelayo ukuthi ungashintsha kanjani iphampu uma kungekho valve yokuhlukanisa emgqeni wokungena. Kunezimpendulo ezimbili. Okokuqala, uma iphampu inokwehluleka okuyinhlekelele futhi umsebenzi wakho “ulungile”, kufanele usebenzise inqola yokuhlunga ukuze ukhiphe amafutha ethangini bese uwathela ebhakedeni elihlanzekile noma kwesinye isitsha esifanelekayo. Khona-ke ithangi likaphethiloli kufanele lihlanzwe kahle, iphampu kufanele ishintshwe, bese inqola yokuhlunga kufanele isetshenziselwe ukupompa uwoyela (kucatshangwa ukuthi usasebenza) emuva ethangini.
Ukuphikiswa okujwayelekile kulokhu ukuthi: pOh, asinaso isikhathi sokwenza lokhu!q noma pAzikho izigubhu ezihlanzekile ezisizungezile eziwu-10, 20, noma eziningi.q Kulabo abangafuni ukwenza umsebenzi olungile, isisombululo esisodwa ukubeka yonke i-Permeate ivaleleke endaweni eyinhloko yethangi lokugcina, bese kuba isicoci se-vacuum semboni sixhunywe endaweni ye-tank. Lapho ushintsha iphampu, vula isicoci se-vacuum, bese uphinda umsebenzi lapho imfucumfucu evela ekuhlulekeni kwephampu kwangaphambilini kubangela ukuthi iphampu eyisipele ihluleke.
Vele, kukhona okuhlukile, njengokudweba iphampu engaphezu kweyodwa ethangini elifanayo, noma ukumpompa amalitha angama-3000 kawoyela ethangini akwenzeki. Ngezinye izikhathi i-valve yokuhlukanisa yomugqa wokuthatha iyadingeka. Uma kunjalo, kuwukuhlakanipha ukuqinisekisa ukuthi banamaswishi aseduze ukuvimbela ukuqala kwepompo ngemva kokuvala i-valve.
Indlela engiyikhethayo ukungawafaki ama-valve ebhola noma ama-butterfly, uma kungenzeka. Uma kufanele ube nayo, sebenzisa i-valve yebhola uma izindleko noma isikhala kungeyona inkinga. Kodwa-ke, uma enye yalezi zinkinga iyinkinga, i-valve butterfly iyona kuphela inketho.
Ezimweni eziningi, ama-valve ovemvane asetshenziswa njengama-valve okuhlukanisa amaphampu. Ama-excavators amakhulu ama-hydraulic ayisibonelo esivamile. Anamaphampu amaningi amunca ethangini elikhulu ngomugqa wokudonsa onobubanzi obukhulu, futhi asikho isikhala esiningi-zonke izingxenye ezingafaki inketho engcono kakhulu (ayikho i-valve noma i-valve yebhola) ayifakiwe.
Angikhumbuli ngike ngabona iphampu ku-excavator enkulu ye-hydraulic ingalimazi okungenani ukuguguleka kwe-cavitation, lapho lo monakalo ungabhekwa njengokuguga okukhulu. Ingabe lo monakalo we-cavitation ungabangelwa uthuthuva olubangelwa i-valve butterfly? Yebo kungenzeka, kodwa kungase kube nezinye izizathu eziningi. Okuwukuphela kwendlela yokuqinisekisa ukuqhathanisa amaphampu amabili asebenza ngaphansi kwezimo ezifanayo-elilodwa elinevalve uvemvane nelinye elingenayo ivalve uvemvane.
UBrendan Casey unesipiliyoni seminyaka engaphezu kwengama-20 ekulungisweni, ekulungisweni nasekulungisweni kabusha kwemishini ephathwayo neyezimboni. Ulwazi olwengeziwe ngokunciphisa izindleko zokusebenza kanye nokwenyusa izindleko…
Isikhathi sokuthumela: Mar-11-2021
