Zvinangwa zvikuru zvekuvandudza seismic kushanda kwepombi dzemvura dzemvura ndezviviri: imwe ndeyekuvimbisa simba rekufambisa mvura, kudzivirira nzvimbo yakakura yekurasikirwa kwemvura, kuitira kukwanisa kupa mvura kumoto uye zvivako zvakakosha munguva yekukurumidzira; Chechipiri ndechekuderedza kukuvadzwa kwepombi kuti zviite kugadzirisa nekukurumidza. Mune mamwe mazwi, kana takatarisana nenjodzi dzekudengenyeka kwenyika, hurongwa hwekupa mvura hunofanirwa kuve nekuchinjika kwepamusoro.
Kudzivirira kuputsika kwemvura kwakakosha kuchengetedza kushanda kwakajairwa kwehurongwa hwekupa mvura. Iyo PE4710 (yakaenzana nePE100) piping system ine mukana wakaderera wekutsemuka uye kubuda kwepombi ipi neipi yemvura, zvichibatsira kuzadzisa zvinangwa zvese zviri pamusoro.
Kupararira kwemafungu uye kushanduka kwepasi zvachose ndizvo zvinokonzeresa kukuvadzwa kwepombi. Nekuda kwekuvapo kweaxial simba uye kubhenda kushushikana, kufamba kwepasi kunotungamira kune axial uye kukotama madhiri mupombi. Zvishandiso zvine kuomarara kwakanyanya (kunyanya kubvumidzwa kushushikana) kazhinji kuve nekwaniso shoma yekukanganisa. Iyo ductile zvinhu zvinomiririrwa ne polyethylene (PE) (yakaderera inobvumidzwa kusagadzikana) ine yakanaka deformation kugona uye kuoma.
Iyo seismic kugona kwepipeline system inoratidzwa nekuchinjika kwayo kune dhizaini yepasi. Kudengenyeka kwekudengenyeka kwenyika kana seismic wave kuparadzira kunogona kukonzera kunetsa muvhu kukuvadza kunyangwe mapaipi ari panjodzi. Kukanganisa kutsemuka, kukoromoka kwevhu, kushanduka kwevhu kuita madhaka uye zvinokonzeresa kugara uye/kana kupararira kwemashure, kuderera kwepasi uye kusimudzira kunogona kukonzera kuoma kwepasi, zvichikonzera kukanganisa kunzvimbo dzakakura dzemapaipi akavigwa. Tafura B-1 inonyora pasi dambudziko re data rakacherechedzwa pasi rese nekuda kwekushanduka kwepasi zvachose.
Tafura B-1 Yakacherechedzwa kuomarara kwepasi nekuda kwekugara kwepasi deformation
Iyo inodiwa yemhando yepasi strain yemapaipi iri pakati pe0.05% ne4.5%. Mumushumo wa2008 neAmerican Electric Power Research Institute, kuyerwa kwehukuru hwezvinhu zvePE4710 zvakapihwa. Pa 50 ° F (10 ° C) tembiricha, avhareji tensile goho strain ye PE4710 pombi i 9.9%, nepo avhareji yekupedzisira tensile kunetsa i206%. Iyo pombi yepolyethylene ichafamba mukupindura kwekufamba kwepasi, pane kuramba mitoro inogona kukonzera kuoma kana brittle pombi kutyoka. Muzviitiko zvakawanda zvekudengenyeka kwenyika, iyo welded (welded) high density polyethylene (HDPE) pombi inokotama, asi haizotsemuka kana kupatsanura (isina-chisimbiso kubatana), nokudaro kuchengetedza yakajairika mvura. Izvo zvinofanirwa kucherechedzwa kuti zvese zvinongedzo zve PE mapaipi nezvimwe zvimiro, ancillary zvivako uye zvikamu zvinogona kuzviisa pasi pepamusoro mitoro yakasiyana. Kubatana kwezvikamu izvi kunofanira kunyatsorongwa uye kugadzirirwa kuderedza dambudziko rekuputika.
Kuomarara kwegoho re PE4710 pombi inokwana kaviri iyo yepasi dhizaini inokonzerwa neinocherechedzwa magnitude, uye iyo yekupedzisira dhizaini yePE4710 inodarika ka40 iyo yepamusoro peak dhizaini. Kuita kunowanikwa ne theoretical calculation kunoenderana nekushandiswa kwepombi ye polyethylene mukudengenyeka kwenyika. Mutsetse wemvura weHDPE wakasungwa wakaita zvakanaka mukudengenyeka kwenyika. Tafura B-2 inopa maonero mashoma ekudengenyeka kwenyika kwakapfuura muJapan (Omuro naHimono, 2018).
Tafura B-2 Data yakaonekwa panguva yapfuura kudengenyeka kuJapan
Kuita kwekudengenyeka kwepombi kunofanirwa kuongororwa, kusanganisira kuoma, axial strain strain, inotenderwa kubhenda radius, kusimba kwemajoini, kugadzikana uye iripo pombi mamiriro. Huwandu hukuru hwechiitiko chekudengenyeka hunoratidza kuti HDPE mvura inopa mapaipi makuru zvinoenderana neASTM pombi akateedzera zviyero zvinogona kuchengetedza zvakajairwa kushanda pasi peakawanda seismic mutoro mamiriro. Kana iyo seismic kuita zvinodiwa zvepombi hombe yekupa mvura yakakwira, kushandiswa kwepaipi dzeHDPE dzakasungirirwa kunofanirwa kutariswa, nekuti kuita kweseismic kwemapombi eHDPE kwakavimbika, uye vanogona kuenderana nemhando dzakasiyana dzepasi dzinogadzirwa nekudengenyeka kwenyika uye kuchengetedza kushanda kwakajairika.
CHUANGRONGis a share industry and trade integrated company, established in 2005 which focused on the production of HDPE Pipes, Fittings & Valves, PPR Pipes, Fittings & Valves, PP compression fittings & Valves, and sale of Plastic Pipe Welding machines, Pipe Tools, Pipe Repair Clamp and so on. If you need more details, please contact us +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Nguva yekutumira: Mar-06-2025
