isicelo

Ipayipi le-PVC eliqinile, ukufakwa kwamapayipi emikhiqizweni eminingi ye-PVC, ekukhuleni kwethu ngokushesha, kuphinde kube ukusetshenziswa okukhulu kwamapayipi epulasitiki ahlukahlukene.Ngenkulumo-ze nokukhuthazwa kweshubhu le-PVC ezweni lethu eminyakeni yamuva, ikakhulukazi ukusekelwa kwezinqubomgomo zikazwelonke ezifanele, ukukhiqizwa kanye nokusetshenziswa kwamashubhu e-PVC kuye kwenza intuthuko enkulu, ukukhishwa kweshubhu ye-PVC kuye kwaba ngaphezu kuka-50% wengqikithi. ukukhiqizwa kwamashubhu epulasitiki, asetshenziswa kabanzi ezimbonini eziningi, izimboni, ezokwakha, ezolimo, njll.

1. Ukuthuthukiswa kwepayipi le-PVC

1.1 Izinzuzo zepayipi le-PVC

Ngokujwayelekile ukukhiqizwa kwe-resin, ukusetshenziswa kwe-PVC resin kuphansi kakhulu, izindleko zokukhiqiza nazo ziphansi kakhulu.Ukusetshenziswa kwe-ethylene ngethani le-PVC eShayina kungamathani angu-0.5314, kuyilapho ukusetshenziswa kwe-ethylene ngethani ngalinye le-polyethylene kungamathani angu-1.042.Ukusetshenziswa kwe-ethylene ngethani le-PVC resin e-China cishe kungaphansi kwama-50% kune-polyethylene.Futhi ukukhiqizwa kwe-PVC ngegesi ye-chlorine eluhlaza, kuyindlela ebalulekile yokulinganisa ukukhiqizwa kwe-caustic soda ukukhiqiza igesi ye-chlorine, i-caustic soda iyimpahla eluhlaza ebaluleke kakhulu ebalulekile emnothweni wezwe.Ukwengeza, kusukela ekubukeni kwemikhiqizo yepulasitiki, i-PVC kanye nezinhlobonhlobo zezithasiselo zihambisana kahle, ekukhiqizeni amapayipi kungenziwa kwengezwe kwinani elikhulu lama-fillers ashibhile, ukuze izindleko zokukhiqiza zinciphise kakhulu.

Uma kuqhathaniswa namapayipi ensimbi, ukukhiqizwa kwepayipi le-PVC nge-cubic meter ngayinye ye-PVC nokukhiqizwa kwensimbi ngayinye ye-cubic meter kanye nokubala kwe-aluminium, ukusetshenziswa kwamandla ensimbi kungu-316KJ/m3, ukusetshenziswa kwamandla kwe-aluminium yi-619KJ/m3, ukusetshenziswa kwamandla kwe-PVC kungu-70KJ/m3, okungukuthi, insimbi. ukusetshenziswa kwamandla izikhathi ezingu-4.5 kune-PVC, ukusetshenziswa kwamandla kwe-aluminium izikhathi ezingu-8.8 kune-PVC.Ukukhiqizwa kwepayipi le-PVC elicubungula ukusetshenziswa kwamandla kuyingxenye eyodwa kwezintathu kuphela yepayipi lensimbi lobubanzi obufanayo.Ngesikhathi esifanayo, ngoba udonga lwamapayipi e-PVC lubushelelezi, alukho isimila sokugqwala, ukusebenza kahle kokudluliswa kwamanzi, okusetshenziselwa ukumpontshelwa kungasindisa cishe u-20% kagesi.

Ipayipi le-PVC linezici ezinhle zemishini, futhi linokumelana nokugqwala okuhle kakhulu, isisindo esilula lapho sisetshenziswa, ukufakwa kalula, akukho ukugcinwa, kanye nokusetshenziswa kwensimbi njengepayipi lokuthutha indle, lapho lisetshenziswa ngenxa yokugqwala okulula, kufanele kaningi. embozwe ngopende, izindleko eziphezulu zokulungisa.Ukwakhiwa okujwayelekile kanye nemisebenzi yomphakathi ngamapayipi ensimbi kudingeka kushintshwe iminyaka engaba ngu-20, futhi indima yamapayipi e-PVC acutshungulwe kahle, impilo yesevisi efinyelela eminyakeni engama-50, njll. Ngakho-ke, ipayipi le-PVC lingumkhiqizo omuhle wepulasitiki onezindleko eziphansi zokukhiqiza. , amandla aphezulu kanye nokumelana nokugqwala.

Ngokujwayelekile, mayelana namapayipi endle, amanzi angcolile kanye namapayipi okungenisa umoya, amapayipi e-PVC asindisa cishe u-16-37% wezindleko zokufaka kanye nokusebenza kunokusetshenziswa kwamapayipi ensimbi;Izindleko zepayipi lezintambo zingaphansi kuka-30-33% kunezomshini wensimbi wensimbi.Neqhaza lepayipi le-polyvinyl chloride (PVC) ene-chlorine emanzini ashisayo nabandayo, uma kuqhathaniswa nokusetshenziswa kwepayipi le-copper elinosayizi ofanayo kubiza ukonga okungama-23-44%.Ngakho-ke, ngenxa yezinzuzo zepayipi le-PVC, amazwe athuthukisa ngenkuthalo futhi akhuthaze ipayipi le-PVC.

1.2 Ukukhiqizwa nokusetshenziswa kwamapayipi e-PVC

Kusukela ngeminyaka yawo-1980, IZWE LETHU LETHULE NGEMPUMELELO AMAmodeli EHLUKILE E-PVC Ipayipi EXTRUSION UMUGQA WOKUKHIQIZWA NGAPHEZU KWENKULUNGWANE EYODWA, OPHUMELE NJENGE-DALIAN SHIDE, ZHEJIANG YONGGAO, Shanghai TOMCHEN NEMINYE IPHIPI ELIKHULU ELIKHULU.Njengamanje, kunezimboni ezingaphezu kuka-600 ze-UPVC (i-PVC) eqinile yokukhiqiza amapayipi kanye nokufakwa kwamapayipi ezweni lethu, enamandla okukhiqiza amathani angaphezu kwezigidi eziyi-1.1/ngonyaka, abakhiqizi abangaphezu kuka-30 abanamathani angaphezu kuka-10,000/ngonyaka wokukhiqiza. , kanye nabakhiqizi abangaphezu kuka-60 abanesilinganiso samathani angu-0.5-10,000/ngonyaka, okokusebenza kokukhiqiza kwepayipi le-UPVC nokufakwa kwamapayipi kwenziwa ngokuyisisekelo ekhaya.

EZWENI LETHU, IPHIPHA LE-PVC LATHUTHUKISWA NGAPHAMBI KWE-PE KANYE NE-PP PIPE, izinhlobo eziningi, ukusebenza okuhle kakhulu, okusetshenziselwa kabanzi, kunesikhundla esibalulekile emakethe.Ekupheleni kuka-1999, kwase kunemigqa yokukhiqiza amapayipi epulasitiki angaphezu kuka-2000 eShayina, phakathi kwawo imishini engenisiwe yabalelwa ku-15%.Ngo-1999, amandla okukhiqiza azo zonke izinhlobo zamashubhu epulasitiki ezweni lakithi adlula amathani ayizigidi eziyi-1.65/ngonyaka, ukukhiqizwa kwangempela okungamathani ayizigidi eziyi-1, kanti amashubhu e-UPVC aba ngaphezu kuka-50%.

Ngokuhamba kweminyaka, isicelo semakethe ye-PVC emhlabeni, imakethe yezinto zokwakha njengenkulu kunazo zonke, kanye nokwanda okusheshayo kwejubane.EMINYAKENI YAMUVA, IMIKHIQIZO YEZINTO EZAKHAYO yaseMelika IHLALA ITHATHA U-60% WONKE IMIKHIQIZO YAYO, INtshonalanga Yurophu 62%, Japan 50%, ingxenye yethu ingaphansi kuka-30%, igumbi lokukhuphuka.Emikhiqizweni yezinto zokwakha, kanye nepayipi kanye nephrofayili ikakhulukazi, okubandakanya ipayipi lamanzi lokwakha, ipayipi lokunisela lezolimo, ipayipi legesi, ipayipi likawoyela ongahluziwe, njll.

Ukukhiqizwa kanye nokusetshenziswa kwamapayipi e-UPVC eShayina kwaqala ukuthuthuka ngokushesha ngesikhathi soHlelo Lweminyaka Eyisishiyagalolunye Lweminyaka Emihlanu, olwazuza kakhulu ekwesekeni okuqinile kukahulumeni kanye nokuqonda komphakathi amapayipi e-UPVC.

Njengamanje, ukusetshenziswa kwepayipi lepulasitiki kuye kwathuthukiswa kakhulu hhayi kuphela ngobuningi kodwa futhi ngezinhlobonhlobo kanye nokucaciswa.Isibonelo, ipayipi le-UPVC selifinyelele ngaphezu kwama-90% ekufakweni kwe-drainage kwezinye izakhiwo zasemadolobheni, futhi amabhizinisi amaningi amapayipi e-UPVC azuze izinzuzo ezinhle eminyakeni yamuva.

Ngesikhathi soHlelo Lweminyaka Eyishumi EMIHLANU, AMApayipi E-UPVC KANYE NE-PE PLASTIC AYAYISENZIWA KAKHULU EKUKHUSELENI nasekufakweni kwamapayipi epulasitiki, kanye namanye amapayipi epulasitiki amasha athuthukiswa ngamandla.Ngonyaka wezi-2005, ezinhlelweni ezintsha zezwe zokwakha, ukwakha kabusha nokwandisa, u-50% wamapayipi okukhipha amanzi ezakhiwo usebenzisa amapayipi epulasitiki, ama-20% amapayipi okudonsa amanzi asemadolobheni asebenzisa amapayipi epulasitiki, ama-60% amanzi okwakha, amanzi ashisayo namapayipi okufudumeza. kusetshenziswa amapayipi epulasitiki, amapayipi amanzi asemadolobheni (Dn400 ngezansi) 50% kusetshenziswa amapayipi epulasitiki, 60% amapayipi amanzi asezigodini esebenzisa amapayipi epulasitiki, 50% amapayipi egesi emadolobheni (amapayipi anomfutho ophakathi nendawo) asebenzisa amapayipi epulasitiki, futhi 80% of building wire threading bushing sebenzisa amapayipi epulasitiki.Kulinganiselwa ukuthi isidingo samashubhu epulasitiki ngo-2005 singaphezu kwamathani ayizigidi ezimbili, iningi lawo okungamashubhu e-PVC.

Ezweni elithuthukile, ukusetshenziswa kwamapayipi e-PVC ngokuvamile kubala ama-70-80% emakethe yamapayipi epulasitiki, kanti ipayipi le-PVC ezweni lakithi libalelwa kuphela cishe ama-50% yenani eliphelele lamapayipi epulasitiki, amandla okuthuthukiswa kwepayipi le-PVC ezweni lakithi. mkhulu kakhulu.Ingxenye esetshenziswayo yamapayipi e-PVC emazweni athuthukile yilena: amapayipi okuphakela amanzi angu-33%, amapayipi amanzi aphansi abe ngu-22.3%, amapayipi endle angu-15.7%, amapayipi okunisela angu-5.2%, amapayipi egesi angu-0.8%, amanye amapayipi amaphesenti angama-22.7%.Isilinganiso sokusetshenziswa kokufakwa kwamapayipi nepayipi cishe yi-1:8.

Emakethe yokwakha, kunezinhlobo ezimbili zamapayipi e-PVC asetshenziswa: eyodwa iyipayipi elimelana nokucindezela, enye iyipayipi engenawo ukucindezela.Ipayipi lensimbi elisansimbi kanye nepayipi lethusi elivame ukusetshenziswa esikhathini esidlule njengezinto zokwakha ezikwazi ukumelana nokucindezela azigqwali nje kuphela, kodwa futhi zidinga ukulungiswa njalo nokushintshwa, ngezindleko eziphezulu.Izakhiwo zakwamanye amazwe manje sezisetshenziswa kabanzi ipayipi lamanzi anomfutho, ipayipi lamanzi ashisayo lisebenzisa ipayipi le-PVC.Ipayipi elincane le-PVC elisezingeni elincane (ipayipi le-UPVC, ipayipi le-CPVC) linezinzuzo zezindleko eziphansi, ukumelana nokugqwala, futhi asikho isidingo sokugcinwa njalo nokushintshwa.Futhi ipayipi lokucindezela elikhulu le-PVC (ububanzi ku-100-900mm) esikhundleni sepayipi lensimbi elicijile, lithuthukise ipayipi elincane lodaka, i-fluidity system yokuphakelwa kwamanzi, ukumelana nokugqwala, isisindo esiphansi.Ukonga ugesi, izinga elihle lamanzi.Futhi PVC core ungqimba Foam ingcindezi ipayipi free njengoba ipayipi amanzi endlini kanye nemvula uhlelo ipayipi, kungaba ukuxazulula inkinga yomsindo wepayipi amanzi endlini.Ipayipi lokuthuthwa kwendle elisetshenziswayo lenziwe ngepayipi le-PVC elingacindezelwe, elimelana nokugqwala futhi elingagugulwa yi-hydrogen sulfide, linempilo ende yesevisi, isisindo esilula, izindleko eziphansi zokufakwa, ukuxhuma kalula nokuvala, futhi akulula ukuphuka.Ngaphezu kwalokho, ukwakhiwa kwepayipi lentambo kanye nepayipi eligada ikhebula elingaphansi komhlaba kungenye imakethe yamapayipi e-PVC, okwamanje izinhlobo ezisetshenziswa e-China ziyipayipi elinwetshiwe eliqondile, ipayipi eliphindwe kabili elibonda kanye nezinsimbi zodonga olulodwa.

Ipayipi lezolimo ingenye insimu ebanzi yokusetshenziswa kwePVC.Izwe lethu lishodelwa yizinsiza, okwamanje, iningi lamapulazi ethu lisasebenzisa i-canal irrigation, ukuchithwa kwamanzi kubi kakhulu.Futhi ngenxa yokuntuleka kwamanzi, izindawo eziningi zokulima aziniselwa kahle, futhi isivuno sezitshalo sincane.Futhi ukusebenzisa ipayipi le-PVC ukuchelela kungonga amanzi angaba ngu-50%.Ukusetshenziswa kokulima kwesistimu yokunisela ye-PVC engaguquki noma engaguquki, akugcini nje ngokusindisa amanzi, kodwa futhi kungathuthukisa umkhiqizo, ukugqwala kwemishini kanye nezinye izinzuzo, konga kakhulu izindleko zokuchelela kanye nezindawo zokufafaza.Njengamanje, izwe lethu alikakabi nesifunda esiphelele sokunisela ipayipi langempela, iningi lezwe lisantula ukuqonda okuyisisekelo kokunisela kwamapayipi, ngakho-ke, ukwandisa ukumemezela nokukhuthazwa kokunisela kwepayipi le-PVC ezindaweni zasemaphandleni, amandla alo makhulu kakhulu. .

1.3 Amapayipi e-PVC avame ukusetshenziswa eShayina

Ishubhu le-UPVC: Ukusetshenziswa okukhulu kweshubhu le-UPVC imboni yezokwakha.Njengamanje, isetshenziswa kabanzi ohlelweni lwamapayipi amanzi kanye nepayipi lamanzi lokuhlala ezifundazweni nasemadolobheni ahlukahlukene ezweni lonke.Isetshenziswa kakhulu njengepayipi lokudonsa amanzi, ipayipi lemvula kanye nepayipi lokuxhuma embonini yezokwakha.I-tube ye-UPV inokumelana nokugqwala kwamakhemikhali, ukuzicisha ngokwayo kanye ne-flame retardant, ukumelana kahle nokubunjwa, udonga lwangaphakathi olubushelelezi, ukusebenza kahle kukagesi, kodwa ukuqina kwe-tube ye-UPVC kuphansi, i-coefficient yokwandisa umugqa inkulu, ukusetshenziswa kwebanga lokushisa elincane.Ukuthuthukiswa kwepayipi le-UPVC kunezinzuzo ezisobala.Ukukhiqizwa kanye nokusetshenziswa kwepayipi le-UPVC konga amandla angama-55-68% kunepayipi lensimbi, ukukhiqizwa kanye nokusetshenziswa kwepayipi lokuphakela amanzi le-UPVC konga amandla angama-62-75% kunepayipi elinothayela, futhi intengo yobude beyunithi yokucaciswa okufanayo buyi-1 kuphela. /2 wepayipi likathayela, futhi izindleko zokufakwa zingaphansi ngo-70% kunepayipi likathayela.Ukusebenzisa ithani elingu-1 lepayipi lokuphakela amanzi le-UPVC kungashintsha amathani ayi-12 epayipi lensimbi ewugqinsi.Ithani elilodwa lamabhongo e-UPVC lingonga amathani angama-25 ensimbi.

I-Core Foam tube: I-Core layer Foam ipayipi iyingqimba emithathu, ingqikithi yenqubo yokukhipha ekukhiqizeni ungqimba lwangaphakathi nangaphandle kokubili iyafana nepayipi elivamile le-UPVC, phakathi nendawo ukuminyana okuhlobene kungu-0.7 0.9 ungqimba olugwebu oluphansi lwesitsha esisha. uhlobo lwepayipi, indandatho eya eqinile iphindwe izikhathi ezingu-8 zepayipi elivamile le-UPVC, futhi izinga lokushisa liyashintsha lapho izinyawo zinokuqina okuhle, ukufakwa kahle kwe-thermal, ikakhulukazi ungqimba oluyisisekelo lwegwebu lunganqamula ukudluliswa komsindo, Ifaneleka Kakhudlwana ekukhuphukeni okuphezulu. ukwakha uhlelo lokudonsa amanzi.

Uma kuqhathaniswa neshubhu eludongeni oluqinile, ishubhu lesendlalelo esinegwebu elingaphakathi lingonga izinto ezingavuthiwe ezingaphezu kuka-25%, nekhono langaphakathi lokucindezela odongeni lithuthukiswa kakhulu.Futhi odongeni lwangaphakathi ngenani lemigqa eyisikwele eyi-convex kupayipi legwebu eliwumgogodla, ageleza odongeni lwangaphakathi lwepayipi ngokukhululeka nangokuqhubekayo ngendlela ezungezayo, akha ikholomu yomoya phakathi kwepayipi lokudonsa, ngakho-ke. ukuthi ukucindezela kwepayipi kuncishiswe ngo-10%, umthamo ojwayelekile ukhuphuka izikhathi ezingu-10, ukufuduka kwanda izikhathi ezingu-6, umsindo ungaphansi kuka-30-40dB kunepayipi evamile yokukhipha i-UPVC.

PVC RADIAL REINFORCED pipe: Ukukhiqizwa kwaleli payipi kusebenzisa isikhunta esikhethekile kanye nokwakha idivayisi yokulandelela, okuwuhlobo olusindayo lwepayipi lokusanhlamvu lengilazi yeringi yeringi eqinile kakhulu.Udonga lwangaphandle LOMbhobho lufakwe ukuqiniswa kwe-radial, okungathuthukisa kakhulu ukuqina namandla okucindezela kwendandatho yepayipi, efanelekile ikakhulukazi ukugeleza kwamanzi ebunjiniyela bakamasipala.

Izifutho ezikabili odongeni: Izimbongolo eziphindwe kabili zezindonga zenziwa ngokukhipha amashubhu amabili agxilile ngesikhathi esisodwa, bese kushiselwa ishubhu elingaphandle lemivunguzo eshubhuni lethusi ngodonga lwangaphakathi olubushelelezi.Ngodonga lwangaphakathi olubushelelezi nodonga olungaphandle lukathayela, isisindo esilula namandla aphezulu, uma kuqhathaniswa nepayipi elivamile le-UPVC lingasindisa u-40-60% wezinto zokusetshenziswa, ikakhulukazi ezisetshenziswa njengepayipi lokuqapha ikhebula lokuxhumana, ipayipi lokukhipha umoya kanye nepayipi lokudonsa amanzi.

Ipayipi eliqinisiwe le-PVC PERMEable: ingaphakathi nangaphandle izingqimba ezimbili zokubunjwa kwe-plastic extrusion futhi ezenziwe ngefayibha yokwenziwa ehlanganiswe phakathi nendawo, ukuguquguquka okuhle, ukugoba.Ipayipi esobala le-PVC linokumelana okuhle kwe-asidi, ukumelana ne-alkali, ukumelana nowoyela, ukumelana nokuguga, kungashintsha ipayipi lenjoloba, futhi intengo ishibhile.Isetshenziselwa kakhulu i-nitrogen, i-oxygen, i-carbon monoxide namanye amagesi namanzi, i-alkali ehlanjululwayo, uwoyela nezinye izinto zokuhamba eziwuketshezi, ingasetshenziswa futhi njenge-heater yamanzi, isifutho, i-gas cooker conduit.

Ipayipi le-CPVC: Ipayipi le-CPVC liwuhlobo lwepayipi lepulasitiki elikwazi ukumelana nokushisa okuhle, elicutshungulwa yi-polyvinyl chloride ene-chlorine equkethe ngaphezu kuka-66% chlorine.Izinga lokushisa elishisayo leshubhu le-CPVC lingaphezulu kuka-30℃ ngaphezu kweshubhu le-UPVC, futhi ukuzinza kwe-dimensional kuyathuthukiswa, futhi i-coefficient yokunwetshwa komugqa iyancishiswa.Ishubhu le-CPVC linokumelana nokushisa okuhle kakhulu, ukumelana nokuguga kanye nokumelana nokugqwala kwamakhemikhali, futhi aligogeki emanzini abilayo.Ingasetshenziselwa ukuthuthwa kwamanzi ashisayo, uketshezi olumelana nokugqwala namagesi.I-Domestic Yunnan Dian-huai Science and Technology Development Co., LTD ikhiqiza amapayipi e-CPVC.