Umgaqo oSebenzayo woMthinteli we-Backflow
Umthinteli wokubuyela umva kwe-TWSsisixhobo esilungiselelwe ukuthintela ukuhamba kwamanzi angcolileyo okanye ezinye izinto ezibangela ukungcola ukuya kwinkqubo yokuhambisa amanzi okanye inkqubo yolwelo olucocekileyo, ukuqinisekisa ukhuseleko kunye nobunyulu benkqubo yokuqala. Umgaqo wayo wokusebenza uxhomekeke kakhulu kudibaniso lweiivalvu zokujonga, iindlela zokwahluka koxinzelelo, kwaye ngamanye amaxesha iivalvu zokunceda ukwenza "umqobo" ekuphumeni kwamanzi kwakhona. Nantsi inkcazelo eneenkcukacha:
Ivalvu Yokujonga EmbiniIndlela yokusebenza
Uninziizithinteli zokubuyela umvaFaka iivalvu ezimbini zokujonga ezisebenza ngokwazo ezifakwe kuthotho. Ivalvu yokuqala yokujonga (ukungenaivalvu yokujonga) ivumela ulwelo ukuba luhambe luye phambili kwinkqubo phantsi kweemeko eziqhelekileyo kodwa luvaleka ngokuqinileyo ukuba uxinzelelo olungasemva luvela, nto leyo ethintela ukuhamba okungasemva ukusuka kwicala elisezantsi.ivalvu yokujonga(ivenkile yokuthengisaivalvu yokujonga) isebenza njengomqobo wesibini: ukuba owokuqalaivalvu yokujongaxa isilela, eyesibini iyasebenza ukuvala nayiphi na i-backflow eseleyo, ibonelela ngomaleko ongafunekiyo wokhuseleko.
Ukubeka iliso koxinzelelo
Phakathi kwezi zimbiniiivalvu zokujonga, kukho igumbi lomahluko woxinzelelo (okanye indawo ephakathi). Phantsi kokusebenza okuqhelekileyo, uxinzelelo kwicala lokungena (phezulu kwevalvu yokuqala yokujonga) luphezulu kunoxinzelelo olukwindawo ephakathi, kwaye uxinzelelo olukwindawo ephakathi luphezulu kunecala lokukhupha (ezantsi kweyesibiniivalvu yokujongaOlu xinzelelo luqinisekisa ukuba zombini iivalvu zokujonga zihlala zivulekile, zivumela ukuhamba phambili.
Ukuba ukubuya kwamanzi kuza kwenzeka (umz., ngenxa yokwehla ngequbuliso koxinzelelo oluphezulu okanye ukunyuka koxinzelelo olusezantsi), ibhalansi yoxinzelelo iyaphazamiseka. Ivalvu yokuqala yokujonga iyavalwa ukuthintela ukubuya kwamanzi ukusuka kwindawo ephakathi ukuya kwindawo yokungena. Ukuba ivalvu yesibini yokujonga ikwabona uxinzelelo olubuyela umva, iyavalwa ukuvimba ukubuya kwamanzi ukusuka kwicala lokuphuma ukuya kwindawo ephakathi.
Ukusebenza kweValve yoNcedo
Ii-relief preventers ezininzi zixhotyiswe nge-relief valve eqhagamshelwe kwindawo ephakathi. Ukuba zombini ii-check valves ziyasilela okanye ukuba uxinzelelo kwindawo ephakathi ludlula uxinzelelo lokungena (okubonisa umngcipheko wokuba kungenzeka ukuba kubekho ukubuya kwamanzi), i-relief valve iyavuleka ukuze ikhuphe ulwelo olungcolisiweyo kwindawo ephakathi iye emoyeni (okanye kwinkqubo yokukhupha amanzi). Oku kuthintela ulwelo olungcolisiweyo ukuba lungaphindi lubuyele emanzini acocekileyo, nto leyo egcina ukuthembeka kwenkqubo ephambili.
Ukusebenza ngokuzenzekelayo
Yonke le nkqubo izenzekela ngokuzenzekelayo, ayifuni kungenelela ngesandla. Isixhobo siphendula ngokuguquguqukayo kutshintsho loxinzelelo lolwelo kunye necala lokuhamba kwamanzi, siqinisekisa ukhuseleko oluqhubekayo ekubuyeleni kwamanzi phantsi kweemeko zokusebenza ezahlukeneyo.
Iingenelo zeBackflow Preventers
Izithinteli zokubuyela umvaZidlala indima ebalulekileyo ekukhuseleni iinkqubo zamanzi, ingakumbi amanzi okusela, ngokuthintela ukuhamba okungasemva kwezinto ezingcolileyo okanye ezingafunekiyo. Iingenelo zazo eziphambili ziquka:
1. **Ukhuseleko loMgangatho waManzi**
Inzuzo ephambili kukuthintela ukungcoliseka phakathi kweenkqubo zamanzi okusela kunye nemithombo engeyiyo eyokusela (umz., amanzi amdaka emizi-mveliso, amanzi okunkcenkceshela, okanye amanzi amdaka). Oku kuqinisekisa ukuba amanzi okusela okanye ulwelo olucocekileyo alunangcoliseko, nto leyo enciphisa iingozi zempilo ezinxulumene nokusetyenziswa kwamanzi angcolileyo.
2. **Ukuthobela iMithetho**
Kwimimandla emininzi, izinto zokuthintela ukubuya kwamanzi ziyalelwe yimithetho yemibhobho kunye nemigaqo yezempilo (efana naleyo imiselwe yimibutho efana ne-EPA okanye amagunya amanzi asekuhlaleni). Ukuzifaka kunceda izakhiwo kunye neenkqubo ukuba zihlangabezane neemfuno zomthetho, kuthintelwe izigwebo okanye ukuvalwa kokusebenza.
3. **Ukuphinda kusetyenziswe izinto ezintsha kunye nokuthembeka**
Uninziizithinteli zokubuyela umvaineevalvu zokujonga ezimbini kunye nevalvu yokunceda, nto leyo eyenza inkqubo yokhuseleko engafunekiyo. Ukuba enye inxalenye iyasilela, ezinye zisebenza njengee-backups, nto leyo enciphisa umngcipheko wokubuyela umva. Olu yilo luqinisekisa ukusebenza rhoqo naphantsi kweemeko zoxinzelelo okanye ukuhamba okuguqukayo.
4. **Ukuguquguquka kuzo zonke izicelo**
Ziyakwazi ukuziqhelanisa neendawo ezahlukeneyo, kuquka iinkqubo zokuhlala, zorhwebo, zoshishino, kunye nezomasipala. Nokuba zisetyenziswa kwiinethiwekhi zemibhobho, iinkqubo zokunkcenkceshela, okanye imigca yenkqubo yemizi-mveliso, izinto zokuthintela ukubuya kwamanzi zithintela ngokufanelekileyo ukubuya kwamanzi nokuba loluphi uhlobo lolwelo (amanzi, iikhemikhali, njl.njl.) okanye ubungakanani benkqubo.
5. **Ukunciphisa Umonakalo Wezixhobo**
Ngokumisa ukuhamba okungasemva, izinto zokuthintela ukuhamba okungasemva zikhusela iimpompo, iibhoyila, izifudumezi zamanzi, kunye nezinye izinto zenkqubo kumonakalo obangelwa kuxinzelelo olungasemva okanye ihamile yamanzi (ukunyuka koxinzelelo ngequbuliso). Oku kwandisa ubomi bezixhobo kwaye kunciphisa iindleko zokulungisa.
6. **Ukusebenza ngokuzenzekelayo**
Izithinteli zokubuyela umvaisebenza ngaphandle kokungenelela ngesandla, isabela ngoko nangoko kutshintsho loxinzelelo okanye ukuguquka kokuhamba kwamanzi. Oku kuqinisekisa ukhuseleko oluqhubekayo ngaphandle kokuxhomekeka esweni ngumntu, nto leyo eyenza ukuba zifaneleke kwiinkqubo ezingenabantu okanye ezikude.
7. **Ukusebenza kakuhle kweendleko**
Nangona kukho iindleko zokuqala zokufakela, ukonga kwexesha elide kukhulu. Zinciphisa iindleko ezinxulumene nokucoca ungcoliseko lwamanzi, ukulungiswa kwezixhobo, izohlwayo zomthetho, kunye noxanduva olunokubakho kwiziganeko zempilo ezinxulumene namanzi angcolileyo. Enyanisweni, izinto zokuthintela ukubuya kwamanzi zibalulekile ekugcineni ukuthembeka kwenkqubo, impilo yoluntu, kunye nokusebenza kakuhle kuzo zonke iintlobo zezicelo ezisekelwe kulwelo.
Ixesha leposi: Julayi-11-2025
