Ukusetshenziswa kwamadivaysi okuvimbela ukugeleza kwe-backflow akhethiwe kahle, afakwe futhi agcinwe angagwema ingozi yezigameko ezibangelwa i-anti-siphon nokucindezela emuva.
Ukubuyela emuva kuyaqhubeka nokuba yingozi enkulu ekuhlinzekeni kwethu amanzi ahlanzekile. Ngenxa yokuhlangana phakathi kwesistimu yamanzi okuphuza kanye nomthombo okusolekayo oqukethe amanzi asetshenzisiwe, uketshezi lwezimboni, igesi, nanoma iyiphi enye into engcolisayo, izenzakalo zokubuyela emuva kunzima ukuzibona ngaphandle kwalapho kukhona okungahambi kahle kanye nezimpawu ezingaba zimbi. Ukusetshenziswa kwamadivaysi okuvimbela ukugeleza kwe-backflow akhethiwe kahle, afakwe futhi agcinwe angagwema ingozi yezigameko ezibangelwa i-anti-siphon nokucindezela emuva.
Ukucacisa isisombululo esifanele sokugeleza kabusha kuncike ohlelweni lokusebenza. Kubalulekile ukuqaphela amaphutha angenzeka ekwakhiweni kwesistimu yamapayipi ekhona. Okulandelayo yizinto eziyi-10 zokucatshangelwa lapho ucacisa.
Mayelana nokunciphisa ukulahlekelwa kwengcindezi yesistimu, ukusebenza kokugeleza kubalulekile ngoba ingcindezi etholakalayo yesistimu yonke idinga ukubalwa ngesikhathi senqubo yokuklama. Uma ukulahlekelwa kwengcindezi kukhulu kakhulu ukuze uhlelo lunikeze ukucindezela okwanele kwezingxenye zalo, kungase kusho ukuthi ipompo ye-booster kufanele yengezwe noma kufanele kusetshenziswe ipayipi elikhulu lobubanzi, kokubili okuzokwandisa izindleko eziningi. Nakuba ukulahlekelwa kwengcindezi kuyindawo ekhathazayo kuwo wonke amasistimu, kubaluleke kakhulu ezinhlelweni zokuvikela umlilo.
Bonke abakhiqizi be-reflow bashicilela amajika okucindezela / okugeleza kwemishini yabo. Uma uqhathanisa amajika okugeleza, qiniseka ukuthi wonke abonisa isimo esifanayo-ngoba ijika lokugeleza elikhulayo kanye nejika lokugeleza elinciphisa ngokuvamile lihluke kakhulu.
Ingqikithi yesidingo sethiyori sohlelo lokuphakelwa kwamanzi sibalwa ngokuhlanganisa isidingo esikhulu esaziwayo sazo zonke izinto ezilungiswayo ohlelweni. Izici zokugeleza zedivayisi yokubuyisela zingathinta ngokuqondile ukusebenza kokugeleza kukonke kwamanzi okuphuza esakhiwo noma isistimu yokufafaza umlilo. Lapho uqoka, sicela unake izidingo zokugeleza kwesakhiwo.
Ngesilinganiso esiphezulu sokusetshenziswa okujwayelekile, awufuni ukweqa izinga lokugeleza elilinganiselwe, lapho uzothola khona ukwanda okukhulu kokuguga. Kuzinhlelo zokulwa nomlilo, izinga eligcwele lokugeleza komlilo akufanele lidlule izinga lokugeleza elilinganiselwe nge-UL levalvu.
Naphezu kwemizamo emihle kakhulu, ukusebenza okuvamile kanye nemithombo yangaphandle engagwemeki (njengemfucumfucu eningi emanzini) isengadala ukuthi isivimbeli sokubuyela emuva sigqoke. Isivimbeli sokubuyela emuva sidinga nakanjani ukunakekelwa, okufanele kwenziwe uchwepheshe weplumber.
Kunezici eziningi okufanele zicatshangelwe lapho ukhetha isivimbeli sokubuyela emuva: Kulula kangakanani ukufinyelela izingxenye zangaphakathi? Ingabe izingxenye zingalungiswa ngokwehlukana? Ingabe ayatholakala noma nini? Ingabe izingxenye ezifana ne-valve yokukhulula ingcindezi noma i-valve yokuvala ingasuswa ukuze ilungiswe noma ishintshwe? Uma ukulungisa kunzima futhi kuthatha isikhathi eside, kuyanda izindleko zokulungisa.
Izimo zohlelo lokusebenza zizoba nomthelela omkhulu ekwakhiweni, ekufakweni nakwisabelomali sohlelo. Iziphathimandla zendawo zinegunya phezu kwezinhlobo zamavalvu asetshenziswa kuhlobo ngalunye lwesicelo. Ubude obuphelele be-valve ngokuvamile bungatholakala kudatha yedatha yezobuchwepheshe enikezwe umenzi, okubalulekile uma ufaka esikhundleni sohlelo olukhona. Uma isikhala siphezulu, singase futhi sithinte ukufakwa okusha.
Iluphi uhlobo lwendawo idivayisi ezotholakala kuyo? Isibonelo, izingxenye zezoni yokucindezela angeke zisetshenziswe emathangeni angaphansi noma emigodini ngenxa yokuthi zingacwiliswa emanzini. Futhi cabanga ukuthi i-valve izovezwa kusiphi isimo sezulu nokuthi izozithinta kanjani izingxenye eziveziwe.
Isici sesisindo sokukhethwa kwemishini ikakhulukazi izindleko zabasebenzi ezihlobene nokuphatha nokufakwa. Ngaphezu kwalokho, sicela ucabangele ukuthi yenziwe ngani. Izinto ezihlanganisiwe nensimbi engagqwali ngokuvamile zilula kune-cast iron noma i-ductile iron. Okuncane kungcono, ngoba kungashiya isikhala esengeziwe sama-valve adingeka kakhulu ohlelweni futhi kuthathe indawo encane ekamelweni lomshini.
Amadivaysi okuvimbela ukugeleza emuva afakwe ezindaweni ezihlukahlukene, kusukela ezindaweni ezinkulu ezivulekile kuya emakamelweni amancane ekhompyutha. Zenzelwe ukuvumela ukulungiselelwa kokufaka okuningi, okuvumela onjiniyela bokuklama ukuthi bafake okokusebenza esikhaleni. Izinketho zokukhweza zivundlile [ezivame kakhulu], ziqondile, uhlobo "N" kanye nohlobo "Z".
Ngokuvamile, ukusebenza kwe-valve cishe akushintshile ngokuvumelana nokucushwa kokufakwa kwayo; kodwa-ke, kufanele ngaso sonke isikhathi ufunde imininingwane yobuchwepheshe yomkhiqizi futhi uthintane nesikhulu sekhodi yamapayipi wendawo ngaphambi kokwenza isinqumo sokuthenga.
Indlela yokuhlola i-valve incike ezidingweni zomnyango wamanzi wendawo, kodwa i-valve ngokwayo izothinta ubunzima bokuhlolwa kwe-valve nokuxazulula izinkinga. Umhloli udinga ukusebenzisa iqhude lokuhlola ukuze ahlole ngempumelelo umsebenzi wesisetshenziswa. Uma i-valve inemvume eyanele kuzo zonke izinhlangothi, lokhu ngokuvamile akuyona inkinga, kodwa uma lokhu kungenakwenzeka (kwephula izincomo zomkhiqizi) noma lapho i-valve iguqulwa, udonga noma amapayipi akhona angenza kube nzima noma kungenzeki ukungena Test iqhude-lokhu kuzoholela ekufakweni kabusha kwamapayipi noma ukushintshwa kwevalvu ephelele.
Ngaphezu kokuhlola i-valve, okunye ukusetshenziswa kweqhude lokuhlola iwukusula i-valve ngomzamo wokususa udoti ongase ungcolise ukuhlolwa. Iqhude elikhudlwana lokuhlola lizovumela ukugeleza okwengeziwe, ngaleyo ndlela kwandise amathuba akho okukhipha udoti. Ukuze uhlole futhi uxazulule i-valve, kubalulekile ukuthi okungenani i-valve yokuvala ivaleke ngokuqinile futhi ayivuzi. Ngenxa yalesi sizathu, ukuvalwa kwekhwalithi ephezulu kuyingxenye ebalulekile yezingxenye zokubuyisela, futhi ikhono lokuzilungisa ukwenza i-valve ihlolwe futhi nayo ibalulekile.
Lapho ucacisa isivimbeli sokubuyela emuva, kunezinketho eziningi zamavalvu wokuvala atholakalayo, okuhlanganisa: Amavalvu ebhola—ngokuvamile asetshenziselwa ama-2-intshi ama-assembly. Futhi ivumela ukuvuleka noma ukuvala okulula kwamagiya angu-¼; i-butterfly valve-uma i-twist emfushane idingeka, ingavalwa kancane kancane ngokusebenza kwegiya ukugwema isando samanzi (imfuneko yohlelo lokuvikela umlilo), noma isilawuli se-elekthronikhi; I-NRS [isiqu esingame mpo ] I-valve yesango-ilungile uma ungenayo igebe ngaphezu kwesondo lesandla futhi ungadingi inkomba ebonakalayo yendawo (evulekile/evala); I-OSY [isiqu sangaphandle nejoka] i-valve yesango-ukumiswa okujwayelekile kwamavalvu omlilo anobubanzi obukhulu, ngoba Isiqu se-valve ekhuphukayo sinikeza inkomba ebonakalayo yendawo futhi ingafakwa nge-tamper switch; I-PIV [Ivaluvu Yesikhombi Sekholomu]-ngokuvamile inketho yamavalvu esango le-NRS, lawa mavalvu aklanyelwe ukuxhunywa kukholamu ezobonisa ngokubonakalayo ” “Vula” noma “avaliwe” futhi ngokuvamile asetshenziswa ezinhlelweni zokuvikela umlilo lapho i-valve ingekho. okufinyelelekayo, njengokungaphansi noma ngemuva kodonga.
Kubalulekile ukuqonda imithetho nezimfuneko zendawo yakho, ngoba idivayisi ingase ivunyelwe ukuthi isetshenziswe kuhlelo lokusebenza endaweni eyodwa, kodwa ithathwe njengenganele endaweni elandelayo. Kunconywa ukugcina ubudlelwano nomhloli wendawo wamapayipi kanye nomnyango wamanzi ukuze ugweme ukwehluleka ukuhlola noma ukufaka izinto zokusebenza ezibiza kakhulu lapho okonga kakhulu kuhlangabezana nezimfuneko.
Kunezinsiza ezitholakalayo zokuhlinzeka ngolwazi, imfundo, ukuhlolwa komkhiqizo nesitifiketi, ukwakha ukuhlolwa komkhiqizo, nosizo lokuthuthukisa amakhodi. Lezi zinhlangano zingasiza: I-IAPMO-International Association of Plumbing and Machinery Officials (IAPMO) iapmo; I-USC Cross-Connect Control kanye ne-Hydraulic Research Foundation, fccchr.usc.edu; kanye ne-American Society of Sanitary Engineers (ASSE), asse-plumbing.org.
Amapayipi, osonkontileka, nonjiniyela banezinketho eziningi zokuhlonza, ukuhlela nokuvimbela izinsongo ezingase zibe khona zokubuyela emuva ngaphambi kokuba zenzeke, kodwa ukushintsha ukucaciswa kwamapayipi kanye nezinhlelo zamapayipi eziyinkimbinkimbi kwenza kube nzima ukuzulazula. Ukucacisa isivimbeli esilungile sokubuyela emuva kuyisinyathelo sokuqala sokuhlinzekwa kwamanzi okuphephile nokuthembekile.
UMkhandlu Wedolobha LaseToronto ucubungula isu elisheshayo lesimo sezulu. https://www.hpacmag.com/green-technology/toronto-city-council-to-think-accelerated-climate-strategy/1004133508/
Imithetho emisha yokuvinjelwa kukawoyela wamafutha e-Quebec. https://www.hpacmag.com/construction/new-residential-fuel-oil-ban-regulation-in-quebec/1004133504/
IManitoba izokwaba imali yokuthuthukisa uhlelo lwesikole lokungena komoya. https://www.hpacmag.com/human-resources/manitoba-to-dedicate-funding-towards-upgrading-ventilation-systems-in-schools/1004133501/
I-Ontario itshala imali ukuze ihehe abantu abasha emisebenzini embonini yezobuchwepheshe. https://www.hpacmag.com/construction/ontario-makes-investment-to-attract-young-people-to-skilled-trades-careers/1004133485/
Ividiyo: I-ASHRAE ikhuluma ngezinkinga zokuguquguquka kwesimo sezulu ku-COP26 https://www.canadianconsultingengineer.com/?p=1003413735
Isikhathi sokuthumela: Dec-01-2021
