Kwindibano yocweyo yamva nje yokulondolozwa kolwelo olwenziwa ngamanzi aphantsi komhlaba, omnye umntu wandibuza uluvo lwam malunga nevalve yokubeka yodwa kumgca wokumpompa kunye nokuba kunyanzelekile na ukusebenzisa iivalvu zebhola ezibiza kakhulu xa kuthelekiswa neevalvu zebhabhathane ezidla ngokungabizi. Ingcambu yale ngxaki ixhomekeke kwimiphumo emibi ye-turbulence kumgca wokufunxa impompo. Ingxabano yokusebenzisa i-valve yebhola njenge-valve yokuhlukanisa umgca wokuthatha kukuba xa i-valve yebhola ivuliwe, umgodi wonke we-valve ungasetyenziselwa ukuhamba kweoli. Ngoko ke, ukuba ufaka i-valve yebhola ye-2-intshi kumgca wokuthatha i-intshi ye-2, xa i-valve ivuliwe, iya kubonakala ingekho (ubuncinci ukusuka kwindawo yokujonga ioli).
Kwelinye icala, ivalve yebhabhathane ayigcwalanga yimingxuma. Nangona ivuliwe ngokupheleleyo, i-butterfly shape iya kuhlala emngxunyeni kwaye ibonise isithintelo esincinci, esingaqhelekanga. Oku kunokubangela isiphithiphithi, esinokubangela ukuba umoya onyibilikisiweyo ubaleke kwisisombululo kumgca wokuthatha. Ukuba oku kuyenzeka, la maqamza aya kugqabhuka xa evezwe kuxinzelelo kwindawo yempompo. Ngamanye amazwi, iivalve zebhabhathane zinokubangela i-cavitation.
Ngoko ke yeyiphi eyona ilungileyo: ivalve yebhola okanye ivalve yebhabhathane? Ewe, njengeengxaki ezininzi nge-hydraulics, kuxhomekeke. Kwilizwe elilungileyo, ndingahlala ndikhetha ivalve yebhola phambi kwevalve yebhabhathane. Ngombhobho wokungenisa kunye nobukhulu obukhulu bee-intshi ezi-3, akukho phantse ilahleko yeendleko ngokwenza oko.
Kodwa xa ufumana i-intshi ezi-4, i-intshi ezi-6 kunye ne-intshi ezisi-8 ububanzi, iivalvu zebhola zibiza kakhulu xa zithelekiswa neevalvu zebhabhathane. Bakwathatha indawo eninzi ngakumbi, ngakumbi kubude bonke. Ke ngoko, kwizicelo eziphathwayo, umzekelo, ayisiyiyo kuphela indleko yevalve yebhola enobubanzi obukhulu enqatshelweyo, kodwa akunakubakho sithuba saneleyo phakathi kwetanki yokuphuma kunye nempompo yokungena ukuyifaka.
Kukho inketho yesithathu. Abantu abaninzi bakholelwa ngempazamo ukuba ivalve yokuzahlula yomgca wokuthatha ibalulekile, kodwa enyanisweni akunjalo, kodwa kukho izinto ezimbalwa ezizezinye.
Umbuzo wokuqala olandelayo yindlela yokutshintsha impompo ukuba akukho valve yodwa kumgca wokuthatha. Kukho iimpendulo ezimbini. Okokuqala, ukuba umpompo unokusilela kwintlekele kwaye umsebenzi wakho "uchanekileyo", kufuneka usebenzise inqwelo yokucoca ukutsala ioli kwitanki kwaye uyithululele kwibhakethi ecocekileyo okanye enye isitya esifanelekileyo. Emva koko itanki yamafutha kufuneka ihlanjululwe ngokucokisekileyo, impompo kufuneka itshintshwe, kwaye inqwelo yokucoca kufuneka isetyenziswe ukupompa ioli (kucingelwa ukuba isasebenza) ibuyele kwitanki.
Ukuchaswa ngokubanzi koku kukuba: oh, asinaxesha lakwenza oku!q okanye pAkukho 10, 20, okanye maninzi amagubu acocekileyo asingqongileyo.q Kwabo bangafuni ukwenza umsebenzi olungileyo, isisombululo esinye kukubeka. yonke iPermeate ivalelwe kwindawo eyintloko yetanki yokugcina, kwaye emva koko isicoci se-industrial vacuum siqhagamshelwe kwi-tank vent. Xa utshintsha impompo, vula isicoci se-vacuum, kwaye uphinde usebenze xa i-debris evela kukusilela kwempompo yangaphambili ibangela ukuba impompo yokugcina ingaphumeleli.
Ewe kunjalo, kukho izinto ezingafaniyo, njengokuzoba ngaphezulu kwempompo enye kwitanki enye, okanye ukumpompa iilitha ezingama-3000 zeoyile kwitanki akunakwenzeka. Ngamanye amaxesha i-valve yokwahlula yomgca wokuthatha iyafuneka. Ukuba kunjalo, kubulumko ukuqinisekisa ukuba banokutshintshana ngokusondeleyo ukukhusela ukuqala impompo emva kokuvala i-valve.
Indlela endiyithandayo kukungafaki iivalve zebhola okanye iivalve zebhabhathane, ukuba kunokwenzeka. Ukuba kufuneka ubenayo, sebenzisa ivalve yebhola ukuba ixabiso okanye indawo ayiyongxaki. Nangona kunjalo, ukuba enye yezi ngxaki ziyingxaki, ivalve yebhabhathane kuphela kwendlela.
Kwizicelo ezininzi, iivalve zebhabhathane zisetyenziswa njengeempompo zokubeka ivalve yokwahlukanisa. I-excavators enkulu ye-hydraulic ngumzekelo oqhelekileyo. Zineempompo ezininzi ezifunxayo kwitanki enkulu ngomgca wokuthatha wobubanzi obukhulu, kwaye akukho ndawo ininzi-zonke iinxalenye ezingabandakanyiyo eyona ndlela ingcono (akukho valve okanye ivalve yebhola) ayibandakanywanga.
Andikhumbuli ndibona ipompo kwi-excavator enkulu ye-hydraulic ingonakaliswa buncinci ukhukuliseko lwe-cavitation, kwimeko apho lo monakalo unokuthathwa njengokunxitywa okukhulu. Ngaba lo monakalo we-cavitation unokubangelwa yi-turbulence ebangelwa i-valve butterfly? Ewe kunjalo, kodwa kusenokubakho ezinye izizathu ezininzi. Indlela yodwa yokuqinisekisa kukuthelekisa iimpompo ezimbini ezisebenza phantsi kweemeko ezifanayo-enye inevalve yebhabhathane kunye nenye ngaphandle kwevalve yebhabhathane.
UBrendan Casey uneminyaka engaphezulu kwe-20 yamava kugcino, ukulungiswa nokulungiswa ngokutsha kwezixhobo eziphathwayo nezamashishini. Ulwazi oluthe kratya ngokunciphisa iindleko zokusebenza kunye nokunyusa iindleko...
Ixesha lokuposa: Mar-11-2021
