Ngokwethulwa koHlelo Lweminyaka Eyishumi Nambili Yeshumi Nambili, inqubo yokufudukela emadolobheni ezweni lami izoshesha unyaka nonyaka. Njalo uma kukhula okungu-1% kokufudukela emadolobheni kuzodinga amanzi angama-cubic metres ayizigidi eziyizinkulungwane ezingu-3.2. Ngakho-ke, umkhiqizo wamapayipi epulasitiki usalindeleke ukuthi ugcine isilinganiso sonyaka esingu-15%. Izinga lokukhula elihlanganisiwe cishe lingu-%.

Amapayipi epulasitiki aseShayina athuthuke aba yisigaba esibalulekile semikhiqizo yepulasitiki. Izinto zokwakha zamakhemikhali ziwuhlobo lwesine lwezinto zokwakha ezintsha ezivela ezikhathini zanamuhla ngemuva kwensimbi, ukhuni, kanye nosimende. Amapayipi epulasitiki, amaphrofayili epulasitiki, iminyango namafasitela yizinhlobo ezimbili eziyinhloko zezinto zokwakha zamakhemikhali ezisetshenziswa kaningi. Kusukela ngo-1994, uhulumeni waseShayina uhlelwe ngokubambisana yi-Ministry of Construction, i-Ministry of Chemical Industry yangaphambili, i-China National Light Industry Council yangaphambili, i-National Building Materials Bureau, kanye ne-China Petrochemical Corporation yangaphambili ukuhlela ngokubambisana "i-National Chemical Building Materials Leading Group" ukuze kwakhiwe futhi kushicilelwe imizamo efanele. Ukuthuthukiswa kwezinto zokwakha zamakhemikhali kuhloswe, izinhlelo, izinqubomgomo, amazinga, njll. Eminyakeni embalwa nje, amapayipi epulasitiki aseShayina, amaphrofayili, iminyango namafasitela kufinyelele intuthuko esheshayo. Umthamo kazwelonke wokukhiqiza amapayipi epulasitiki ngo-1994 wawungamathani angu-240,000, kanti umkhiqizo wawungu-150,000. Ngo-2000, umthamo wawungamathani ayizigidi ezingu-1.64, kanti umkhiqizo wawungamathani ayizigidi ezingu-1 (okwakukhona umkhiqizo wamapayipi e-PVC-U owawungaba ngamathani angu-500,000), umugqa wokukhiqiza amapayipi usufinyelele ngaphezu kuka-2,000, kanti isilinganiso esikhulu sokukhiqiza samapayipi e-polyvinyl chloride aqinile singaphezu kwamathani ayi-10,000. Kunamabhizinisi angaphezu kuka-30 ezweni lonke.

Amanethiwekhi amapayipi endabuko ikakhulukazi amapayipi ensimbi, amapayipi ensimbi acwebezelayo, amapayipi kasimende namapayipi obumba. Izinto zamapayipi endabuko ngokuvamile zinezici zokusetshenziswa kwamandla aphezulu kanye nokungcoliswa kwemvelo. Ngesikhathi esifanayo, inethiwekhi yamapayipi nayo inezinkinga ezilandelayo: ① Impilo yesevisi emfushane, ngokuvamile iminyaka emi-5-10; ②Ukumelana namakhemikhali okubi kanye nokumelana nokugqwala; ③Ukusebenza kabi kwe-hydraulic; ④Izindleko zokwakha eziphakeme, isikhathi eside; ⑤Ubuqotho obubi bepayipi, okulula ukuvuza, njll. Kusukela maphakathi nekhulu lama-20, amazwe emhlabeni jikelele, ikakhulukazi amazwe athuthukile, abelokhu ethuthukisa izinto ezikhethekile zamapayipi epulasitiki futhi esebenzisa amapayipi epulasitiki.

Eminyakeni eyishumi edlule, amapayipi epulasitiki athuthuke ngokushesha. Amapayipi epulasitiki aya ngokuya ethandwa kakhulu ngenxa yokuvikelwa kwawo kwemvelo nokuphepha empilweni yansuku zonke kanye nezicelo zezimboni, futhi adlala indima ebalulekile futhi engenakuphikwa. Ikakhulukazi embonini yokwakha, amapayipi epulasitiki awakwazi nje ukufaka esikhundleni insimbi, ukhuni, nezinto zokwakha zendabuko ngobuningi obukhulu, kodwa futhi anezinzuzo zokonga amandla, ukonga izinto, ukuvikelwa kwemvelo, ukuthuthukiswa kwendawo yokuhlala, ukuthuthukiswa komsebenzi wesakhiwo kanye nekhwalithi, ukwehla kwesisindo sesakhiwo, kanye nokuqedwa okulula. , Kusetshenziswa kabanzi ekwakheni ukuhlinzekwa kwamanzi kanye nokudonswa kwamanzi, ukuhlinzekwa kwamanzi kanye nokudonswa kwamanzi emadolobheni, amapayipi egesi kanye neminye imikhakha; izinga lokukhula kwamapayipi epulasitiki cishe liphindwe kane kunesilinganiso sokukhula kwamapayipi, okuyinto ephakeme kakhulu kunezinga lokukhula komnotho kazwelonke wamazwe ahlukahlukene. Ukufaka esikhundleni amapayipi ensimbi ensimbi kanye namapayipi ensimbi agqitshiwe ngamapayipi epulasitiki aluhlaza anobungani nemvelo sekuyindlela yokuthuthukiswa ekhulwini elisha leminyaka. Amapayipi epulasitiki athuthukiswe ngempumelelo futhi asetshenziswa kabanzi emazweni athuthukile, ikakhulukazi eYurophu; intuthuko ezweni lakithi ibilokhu ibambezeleka, kodwa eminyakeni yamuva nje, ngokuthuthukiswa kwamandla ezwe lami aphelele kanye nokuthuthukiswa kwezinga lokuphila labantu, amapayipi epulasitiki enze intuthuko esheshayo.

Izinhlobo kanye nokusetshenziswa kwamapayipi epulasitiki kuye kwathuthuka ngokushesha eminyakeni embalwa edlule. Njengamanje, amapayipi epulasitiki ezweni lami athuthuke aba imboni yezinto zokwakha enohlobo oluphelele kanye nomthamo omkhulu wokukhiqiza. Izinhlobo eziyinhloko zamapayipi epulasitiki yilezi: amapayipi e-UPVC,Amapayipi e-CPVC, kanye namapayipi e-PE. , ipayipi le-PAP, ipayipi le-PE-X, ipayipi le-PP-B,Ipayipi le-PP-R, ipayipi le-PB, ipayipi le-ABS,ipayipi elihlanganisiwe lensimbi-ipulasitiki, ipayipi eliqiniswe ngefayibha yengilazi, njll. Lisetshenziswa kabanzi kumapayipi okuhambisa amanzi kanye namapayipi okukhipha amanzi okwakha, amapayipi okuhambisa amanzi agqitshwe emadolobheni, amapayipi okukhipha amanzi, amapayipi egesi, amapayipi okuhambisa amanzi kanye nokukhipha amanzi ezindaweni zasemakhaya, amapayipi okunisela, kanye nokuthuthwa kwendle kanye noketshezi lwamakhemikhali ezimbonini, njll., okuhlangabezana nezidingo zemikhakha eyahlukene yomnotho wezwe. Izidingo ezahlukene zamapayipi. Kufanele sithuthukise futhi sikhiqize uhlobo oluthile lwamapayipi epulasitiki ngokwezici kanye nokusetshenziswa kwamapayipi ahlukahlukene.