uchwepheshe wepayipi

Iminyaka eyi-15 Yokukhiqiza

Izibonelo zokusetshenziswa kwamapayipi e-polyethylene (PE) wokuphakelwa kwamanzi

I-Abstract Polyethylene (PE) emapayipini engcindezi epulasitiki ithuthuke ngokushesha emhlabeni eminyakeni yamuva. Lo mbhalo unikeza izibonelo ezimbalwa zokusetshenziswa kwamapayipi e-polyethylene (PE) wokuphakelwa kwamanzi kumaphrojekthi wokuphakelwa kwamanzi ukuze kubhekiswe kuwo ukuthandwa nokusetshenziswa.

Ipayipi le-Polyethylene (PE) liguquguquka kakhulu. Ngawo-1960, amazwe athuthukile aseNtshonalanga eYurophu nase-United States aqala ukusebenzisa amapayipi e-PE ekuhanjisweni kwegesi yasemadolobheni nasezinhlelweni zamapayipi okuhambisa amanzi. Ngawo-1980, ubuchwepheshe bokusetshenziswa kwamapayipi e-PE phesheya kwase kukhule kakhulu. Ipayipi le-Polyethylene (PE) linomlando omfishane wokwenziwa kabusha nokusetshenziswa ezweni lami, ikakhulukazi njengepayipi lengcindezi lokuphakelwa kwamanzi, okuyindaba nje yeminyaka edlule.

Amapayipi epulasitiki anezinto ezinhle kakhulu ezifana nesisindo esincane, amandla aphezulu, ukumelana nokugqwala, ukungqubuzana okuphansi, ukungakhulisi, nokuphila kwensizakalo ende. Ngaphezu kwezinzuzo ezivamile zamapayipi epulasitiki, amapayipi e-polyethylene (PE) anokuguquguquka okukhethekile futhi aphakeme ngokwedlulele I-elongation kanye nendlela eyingqayizivele yokuxhuma i-hot-melt welding iletha izinzuzo eziningi ezinye izinto zepayipi ezingenazo. UDeyang Senpu Industrial Co, Ltd. ukhiqiza amapayipi e-dn20-630mm polyethylene (PE) wokuphakelwa kwamanzi namapayipi e-polyethylene (PE) afihlwe ngegesi. Iphinde ikhiqize i-dn20-110mm yohlobo III polypropylene (PP-R) yokwakha ukupholisa namanzi ashisayo. Ipayipi, eminyakeni emibili eyedlule, lenze amaphrojekthi wokuhambisa amanzi kanye negesi ngamakhulu, futhi liqonda ngokujulile izinzuzo eziyingqayizivele zamapayipi e-polyethylene (PE) ezinhlelweni zobunjiniyela. Nazi izibonelo ezimbalwa zamaphrojekthi wokuphakelwa kwamanzi okusetshenziselwa ukukhomba nokwenyusa kwamapayipi e-polyethylene (PE).

1. Ekuzamazameni komhlaba komhlaba kwaseBaoshan esifundazweni saseYunnan, kuphela uhlelo lwamapayipi wokuhambisa amanzi lwe-polyethylene kuphela.
Inkampani iBaoshan Water Supply Company yesiFundazwe saseYunnan yafaka imininingwane emibili yamapayipi okuhambisa amanzi ngoJanuwari 2001. i-dn110mm ne-dn160, PN0.6MPa. Ngemuva kokusebenza izinyanga ezingaphezu kwezinyanga ezimbili, ukuzamazama komhlaba kwenzeke kule ndawo ngo-Ephreli 10 no-12, ngobukhulu 5.9. Ekuzamazameni komhlaba, amanye amapayipi ahambisa amanzi kuleli dolobha, kufaka phakathi amapayipi kasimende, amapayipi e-glass fiber aqinise amapayipi esihlabathi we-lime lime, amapayipi e-UPVC namapayipi wensimbi, alinyazwa ngamazinga ahlukahlukene. Amanzi abuyiselwa emuva kokutakulwa okuphuthumayo. Amapayipi e-polyethylene (PE) ayephelele futhi aqhubeka nokuletha amanzi. Ngenxa yokuguquguquka kwayo nokunwebeka okuphezulu, amapayipi e-polyethylene (PE) akwazi ukuzivumelanisa nezinguquko kusisekelo sepayipi futhi anokumelana okuhle nokuzamazama komhlaba.

2. Inkampani yakwa-Deyang City Water Supply ayimbangi umgwaqo ohamba olayini ohamba phambili futhi isebenzisa amapayipi e-polyethylene ukulungisa ipayipi lamanzi likakhonkolo eliqiniswe ngaphambi kokugcizelela elinqamula umgwaqo.
Ehlobo lika-2000, ipayipi likakhonkolo eliqiniswe ngaphambilini elinobubanzi obungu-300 mm ngaphesheya komgwaqo omkhulu osuka eChengdu uya eMianyang eDeyang City, eSifundazweni saseSichuan laphazamisa ukulethwa kwamanzi ngenxa yokuvuza okukhulu kwamanzi okuthinta isisekelo. Ukuze kungaphazamisi ukuhamba kahle komgwaqo omkhulu, inkampani kanye nochwepheshe benkampani iSemp banqume ukungambiwa komgwaqo omkhulu basebenzise amapayipi amanzi ayi-250mm polyethylene (PE) ukulungisa okuphuthumayo. Baxhume ipayipi le-88mPE enqamula umgwaqo omkhulu yangena epayipini elide ngokushisela ukushisa. Ipayipi le-PE licindezelwe ngesandla phezu komgwaqo omkhulu osuka kusimende. Ngosuku olulodwa nje, kwalungiswa amapayipi angaphezu kwamamitha angama-200 futhi kwavuselelwa namanzi ajwayelekile.

3. I-Kunming Water Supply Company isebenzise amapayipi e-polyethylene ukulungisa inethiwekhi yokuhlinzeka ngamanzi yensimbi ephukile neputshukayo yeSiteshi Sesitimela saseNingizimu.
NgoJanuwari ka-2002, ipayipi elingaphakathi elingama-300mm lasakaza insimbi yokuhambisa amanzi esiteshini saseKunming South Railway Station laphulwa kwavalwa ukunikezelwa kwamanzi emphakathini. Kunojantshi abaningi nezakhiwo ezingaphezu kwamapayipi angaphansi komhlaba, futhi kusenzima kakhulu ukulungisa ngamapayipi ensimbi. Ukutshalwa kwemali kunethiwekhi entsha yamapayipi kuyabiza futhi isikhathi asivumeli. Ngosizo lweHhovisi leKunming, ngemuva kokubala ukugeleza kwamanzi, kwathathwa isinqumo sokusebenzisa amapayipi we-PN0.8MPa, dn250mm polyethylene (PE) ukungena emapayipini ensimbi awonakele anengxenye yomphakathi yokufakwa kwepayipi nokudonsa. Engxenyeni yosuku, amapayipi angaphezu kuka-120 asuswa. Lungisa ukuphakelwa kwamanzi.

4. Inkampani iLiupanshui City Water Supply Company eSifundazweni saseGuizhou yakhetha amapayipi e-polyethylene esikhundleni samapayipi ensimbi afakiwe, okwanciphisa kakhulu izindleko zephrojekthi.
I-Hecheng Garden Water Supply Project yeLiupanshui Water Supply Corporation, esifundazweni saseGuizhou, ekuqaleni yayenzelwe ukusebenzisa amapayipi ensimbi afakwe ulayini nge-Ø600mm1400mm ne-Ø200mm3200m; izindleko zephrojekthi ehleliwe zingu-3.7 million yuan. Kamuva, uMasipala Design Design wakhetha amapayipi e-polyethylene ukuze atholakale ngamanzi ngenxa yokungqubuzana okuphansi. Ngemuva kokubalwa kokugeleza, PN0.6MPa, dn500mm, PE 1400mm; PN0.6MPa, dn200mm, PE ipayipi 3200m. Iphrojekthi yaqedwa ekupheleni kuka-2001, futhi izindleko eziphelele azangehlanga ngaphezu kwezigidi ezi-3 zama-yuan. Phakathi kwazo: izindleko zokufaka ubunjiniyela zifaka imisebenzi yomphakathi, ezokuhamba, njll. Iyancishiswa isuke ku-42 yuan / imitha iye ku-18 yuan / imitha, eyehlisa ukuqina komsebenzi wokufaka futhi inciphise isikhathi sokwakha.

5. I-Wuhan Dongxihu Water Supply Company isebenzisa amapayipi e-polyethylene ukuphakela amanzi ukuxazulula inkinga yokulethwa kwamanzi kuwo wonke amachibi namachweba namachibi okudoba.
Isifunda saseDongxihu sedolobha laseWuhan, esifundazweni saseHubei indawo yentuthuko egcwele amachibi, imifula namachibi, futhi kunzima ukubeka inethiwekhi yokuphakelwa kwamanzi. NgoNovemba 2001, iDongxihu Water Supply Company yafuna ukuxazulula inkinga yokuphakelwa kwamanzi emphakathini ebhange eliseningizimu yeNichi Nan Lake. Uma kusetshenziswa amapayipi wesimende wendabuko noma amapayipi wensimbi e-ductile, enye indlela iwukukhipha ichibi bese umisele ama-500 ukubeka ngale kwechibi; eyodwa iLay ukuzungeza ugu lwechibi ogwini, kusetshenziswa okungenani amapayipi ayi-1 000. Ekugcineni, inkampani yamanzi yasebenzisa amapayipi e-DN400 polyethylene kumajoyinti asebhange laseningizimu, yasebenzisa nemigqomo kaphethiloli ukuhola amapayipi ogwini. Ngemuva kokuhlolwa kwengcindezi, kwengezwa amanzi kwanezelwa nezinsimbi zokulwa ukuze kucwiliswe amapayipi phansi kwechibi. Ukwakhiwa kwakulula kakhulu futhi kuyashesha, futhi kubuye kugcine nezindleko.

Kamuva, kuphrojekthi yamapayipi edlula echwebeni elingamamitha ayi-100 iDongliu Port kanye nedamu lokudoba elingamamitha ayi-100 ububanzi elixhunywe kuyo, iDongxihu Water Supply Company yasebenzisa amapayipi e-polyethylene kanye nendlela efanayo yokubeka ukuxazulula inkinga, nayo yonke Inethiwekhi yamapayipi ibisebenza kahle kuze kube manje.


Isikhathi Iposi: Jul-01-2021