Ngokuthuthuka kwezinga lempilo yabantu, ukuqwashisa ngokuvikelwa kwemvelo kanye nokukhathazeka ngezempilo, uguquko oluluhlaza embonini yempahla yokwakha seluqalisiwe emkhakheni wokuphakelwa kwamanzi nokukhipha amanzi. Ngokwenani elikhulu ledatha yokuqapha izinga lamanzi, amapayipi ensimbi abandayo ngokuvamile agqwala ngemva kweminyaka engaphansi kwemi-5 yokuphila kwesevisi, futhi iphunga lensimbi libi kakhulu. Izakhamuzi zikhala ngeminyango kahulumeni zilandelana, zidale uhlobo oluthile lwenkinga yomphakathi. Uma kuqhathaniswa namapayipi ensimbi endabuko, amapayipi epulasitiki anezici zesisindo esilula, ukumelana nokugqwala, amandla acindezelayo aphezulu, ukuthuthwa kwendle nokuphepha, ukumelana nokugeleza kwamanzi aphansi, ukonga amandla, ukonga insimbi, indawo yokuhlala ethuthukisiwe, impilo ende yesevisi, nokufakwa kalula. Ithandwe umphakathi wobunjiniyela futhi ithatha isikhundla esibaluleke kakhulu, yakha inkambiso yentuthuko engenangqondo.

Izici kanye nokusetshenziswa kwepayipi lepulasitiki

﹝一﹞Polypropylene pipe (I-PPR)

(1) Kumaphrojekthi amanje okwakha nokufaka, izinto eziningi zokushisisa namanzi amapayipi e-PPR (izingcezu). Izinzuzo zayo zilula futhi ukufakwa okusheshayo, ukonga kanye nemvelo, isisindo esincane, ukuhlanzeka nokungenabuthi, ukumelana nokushisa okuhle, ukumelana nokugqwala, ukusebenza kahle kokulondoloza ukushisa, impilo ende nezinye izinzuzo. Ububanzi bepayipi bukhulu kunobukhulu obujwayelekile, futhi ububanzi bepayipi buhlukaniswe ngokukhethekile ku-DN20, DN25, DN32, DN40, DN50, DN63, DN75, DN90, DN110. Kunezinhlobo eziningi zokufakwa kwamapayipi, amathayi, izindololwane, izinsimbi zamapayipi, izinciphisi, izixhumi zamapayipi, izinsimbi zamapayipi, abakaki, iziphanyeko. Kunamapayipi amanzi abandayo nashisayo, ipayipi lamanzi abandayo liyishubhu eliluhlaza, kanti ipayipi lamanzi ashisayo liyishubhu elibomvu. Amavalvu ahlanganisa amavalvu ebhola e-PPR, ama-globe valves, ama-butterfly valves, ama-gate valves, kanye nalawo anempahla ye-PPR ne-copper core ngaphakathi.

(2) Izindlela zokuxhuma ipayipi zihlanganisa i-welding, i-hot melt kanye noxhumano lwezintambo. Ipayipi le-PPR lisebenzisa ukuxhumana okuncibilikayo okushisayo ukuze libe elithembeke kakhulu, lisebenziseka kalula, libambene kahle komoya, namandla okuxhumana aphezulu. Uxhumo lwepayipi lisebenzisa i-fusion splicer ebanjwa ngesandla ukuze kuxhumeke i-hot-melt. Ngaphambi kokuxhuma, susa uthuli nezinto zangaphandle kumapayipi kanye nezesekeli. Uma ilambu elibomvu lomshini likhanya futhi lizinzile, qondanisa amapayipi (izingcezu) azoxhunywa. I-DN<50, ukujula kwe-hot melt kungu-1-2MM, futhi i-DN<110, ukujula kwe-hot melt kungu-2-4MM. Uma uxhuma, beka isiphetho sepayipi ngaphandle kokuzungezisa Faka kubhantshi lokushisisa ukuze ufinyelele ekujuleni okunqunywe kusengaphambili. Ngesikhathi esifanayo, cindezela izifakelo zamapayipi ekhanda lokushisa ngaphandle kokuzungezisa ukuze kufudumale. Ngemuva kokuthi isikhathi sokushisa sifinyelelwe, susa ngokushesha amapayipi kanye nokufakwa kwamapayipi kusuka ejazini lokushisa kanye nekhanda lokushisa ngesikhathi esifanayo, bese uwafaka ekujuleni okudingekayo ngokushesha nangokulinganayo ngaphandle kokujikeleza. I-flange iyunifomu yakheka ekuhlanganyeleni. Ngesikhathi sokushisa esicacisiwe, i-joint esanda kushiselwa ingalinganiswa, kodwa ukujikeleza kuvinjelwe ngokuqinile. Uma ushisisa amapayipi nokufakwa, vimbela ukushisa ngokweqile futhi wenze ukushuba kube mncane. Ipayipi likhubazekile ekufakweni kwepayipi. Akuvunyelwe ngokuphelele ukuzungezisa ngesikhathi se-hot melt intubation kanye nokulinganisa. Akufanele kube khona ilangabi elivulekile endaweni yokusebenza, futhi kwenqatshelwe ngokuphelele ukubhaka ipayipi ngelangabi elivulekile. Uma uqondanisa ipayipi elishisayo nezixhumi ziqonde phezulu, sebenzisa amandla okukhanya ukuze uvimbele indololwane ukuthi ingagobi. Ngemva kokuqedwa kokuxhumeka, amapayipi nokufakwa kufanele kubanjwe ngokuqinile ukuze kugcinwe isikhathi esanele sokupholisa, futhi izandla zingakhululwa ngemva kokupholisa ngezinga elithile. Uma ipayipi ye-PP-R ixhunywe nokufakwa kwepayipi yensimbi, ipayipi ye-PP-R ene-metal insert kufanele isetshenziswe njengenguquko. Ukufakwa kwepayipi kanye nepayipi le-PP-R kuxhunywe yisikhethi esincibilika ngokushisayo futhi kuxhunywe ngokufakwa kwepayipi lensimbi noma izinsimbi zehadiwe zempahla ye-sanitary. Uma usebenzisa uxhumano olunentambo, kungakuhle ukuthi usebenzise itheyiphu ye-polypropylene eluhlaza njengokugcwalisa uphawu. Uma umpompi uxhunywe ku-mop pool, faka indololwane yesifazane (efakwe phakathi) ekugcineni kwepayipi le-PPR kuyo. Ungasebenzisi amandla amaningi ngesikhathi senqubo yokufaka ipayipi, ukuze ungalimazi ukufakwa kwentambo futhi ubangele ukuvuza ekuxhumekeni. Ukusika amapayipi kungabuye kunqunywe ngamapayipi akhethekile: i-bayonet yesikelo sepayipi kufanele ilungiswe ukuze ihambisane nobubanzi bepayipi elinqunyiwe, futhi amandla kufanele asetshenziswe ngokulinganayo lapho ejikeleza futhi esika. Ngemuva kokusika, ukuphuka kufanele kuhlanganiswe ne-rounder efanayo. Lapho ipayipi iphukile, isigaba kufanele sibe yi-perpendicular ku-axis yepayipi ngaphandle kwama-burrs.

﹝二﹞ Ipayipi eliqinile le-Polyvinyl Chloride (I-UPVC)

(1) Amapayipi e-UPVC (izingcezu) asetshenziselwa ukukhipha amanzi. Ngenxa yesisindo sayo esilula, ukumelana nokugqwala, amandla aphezulu, njll., isetshenziswa kakhulu ekufakweni kwamapayipi. Ngaphansi kwezimo ezijwayelekile, impilo yesevisi ngokuvamile ifinyelela eminyakeni engama-30 kuye kwengama-50. Ipayipi le-UPVC linodonga lwangaphakathi olubushelelezi kanye nokumelana nokungqubuzana koketshezi oluphansi, okunqoba isici sokuthi ipayipi lensimbi elicijile lithinta izinga lokugeleza ngenxa yokugqwala nokukala. I-diameter yepayipi nayo isayizi eyodwa enkulu kunobubanzi obujwayelekile.Ukufakwa kwamapayipiahlukaniswe ama-oblique tee, iziphambano, izindololwane, izinsimbi zamapayipi, izinciphisa, izixhumi zamapayipi, izicupho, izinsimbi zamapayipi, nama-hangers.

(2) Khipha ingcina ukuze uxhumeke. I-adhesive kufanele inyakaziswe ngaphambi kokusetshenziswa. Amapayipi nezingxenye zesokhethi kumele zihlanzwe. Igebe lesokhethi lincane, lingcono. Sebenzisa indwangu ye-emery noma i-saw blade ukuze wenze indawo ehlangene ibe roughen. Gcoba i-glue ibe mncane ngaphakathi kwesokhethi bese usebenzisa i-glue kabili ngaphandle kwesokhethi. Lindela i-glue ukuze yome i-40-60s. Ngemuva kokuyifaka endaweni, kufanele kukhokhwe ukunakwa ukuze kwandiswe ngokufanelekile noma kuncishiswe isikhathi sokumisa iglue ngokushintsha kwesimo sezulu. Amanzi avinjelwe ngokuqinile ngesikhathi sokubopha. Ipayipi kufanele libekwe phansi emseleni ngemva kokuba selisendaweni. Ngemuva kokuthi ilunga lomile, qala ukugcwalisa emuva. Uma ugcwalisa emuva, gcwalisa isiyingi sepayipi ngokuqinile ngesihlabathi bese ushiya ingxenye ehlangene ukuze igcwaliswe ngobuningi. Sebenzisa imikhiqizo evela kumkhiqizi ofanayo. Lapho uxhuma ipayipi le-UPVC nepayipi lensimbi, inhlanganisela yepayipi yensimbi kufanele ihlanzwe futhi ihlanganiswe, ipayipi le-UPVC liyashiswa ukuze lithambe (kodwa lingashi), bese lifakwa epayipini lensimbi bese lipholile. Kungcono ukwengeza i-clamp yepayipi. Uma ipayipi lonakaliswa endaweni enkulu futhi idinga ukushintshwa kwepayipi lonke, isixhumi sesokhethi esiphindwe kabili singasetshenziswa ukufaka esikhundleni sepayipi. Indlela ye-solvent ingasetshenziswa ukubhekana nokuvuza kwe-solvent bonding. Ngalesi sikhathi, khipha amanzi epayipi kuqala, futhi wenze ipayipi ibe nokucindezela okungalungile, bese ujova i-adhesive kuma-pores wengxenye evuzayo. Ngenxa yokucindezela okungalungile ku-tube, okunamathelayo kuzodonswa kuma-pores ukufeza injongo yokumisa ukuvuza. Indlela ye-patch bonding ihloselwe ngokuyinhloko ukuvuza kwezimbobo ezincane namajoyinti emapayipini. Ngalesi sikhathi, khetha amapayipi amade angu-15-20cm wezinga elifanayo, uwahlukanise ngobude, wenze ingaphakathi le-casing libe roughen nengaphandle lepayipi elizoxhunywa ngokwendlela yokuhlanganisa amalunga, bese uvala indawo evuzayo. ngeglue. Indlela ye-fiber yengilazi ukulungisa isisombululo se-resin nge-epoxy resin kanye ne-ejenti yokwelapha. Ngemva kokumithisa isixazululo se-resin ngendwangu ye-fiber yengilazi, ilimala ngokulinganayo phezu kwengxenye evuzayo yepayipi noma ilunga, futhi iba yi-FRP ngemva kokuphulukiswa. Ngenxa yokuthi le ndlela inokwakhiwa okulula, ubuchwepheshe obulula ukuyiqonda, umphumela omuhle wokuxhuma kanye nezindleko eziphansi, inokuphromotha okuphezulu kanye nenani lokusebenzisa ekunxephezeleni okunqanda ukubonwa kanye nokuvuza.