Insimbi engagqwaliama-valve yizingxenye ezixhuma amapayipi emapayipini.Ngokwendlela yokuxhuma, ingahlukaniswa ngezigaba ezine: okokufakwa kwesokhethi, okufakwe imicu, okokufakwa kwe-flange nokufakwa okushiselwe.Ikakhulukazi yenziwe ngezinto ezifanayo njengepayipi.Kukhona izindololwane, ama-flange, ama-tee, iziphambano (isiphambano amakhanda), nezinciphisi (amakhanda amakhulu namancane).Indololwane isetshenziselwa ukuguqula ingalo yepayipi. I-flange isetshenziselwa izingxenye ezixhuma ipayipi kanye nepayipi komunye nomunye, futhi ixhunywe ekugcineni kwepayipi. Ipayipi le-tee lisetshenziselwa indawo lapho amapayipi amathathu ehlangana khona. ipayipi elinezinhlangothi ezine lisetshenziselwa indawo lapho amapayipi amane ehlangana khona. Ama-reducers asetshenziswa lapho amapayipi amabili obubanzi obuhlukene axhunyiwe.
Njengamanje, i-China isivele ingumkhiqizi omkhulu nomthengi wezinto zokwakha emhlabeni.Ukukhiqizwa kwezinto ezinkulu zokwakha njengosimende, ingilazi eyisicaba, izitsha zobumba zesanitary, amatshe nezinto zodonga zifika kuqala emhlabeni iminyaka eminingi.Ngesikhathi esifanayo, izinga lezinto zokwakha lihlala lithuthuka, ukusetshenziswa kwamandla nezinto zokusetshenziswa kuncipha unyaka nonyaka, izinto zokwakha ezintsha ezihlukahlukene zivela njalo, futhi imikhiqizo yempahla yokwakha ihlale ithuthukiswa.
Ngaphansi kwesizinda sokwakha umphakathi okonga ugesi kanye nokuqinisa amandla ezwe azimele okusungula, izihloko zokongiwa kwamandla kanye nokuqanjwa okusha kwezobuchwepheshe kuzoba yizindawo ezishisayo ekuthuthukisweni kwale mboni.Insimbi engagqwali iyinsimbi lapho izakhi zamakhemikhali eziningana noma ezingaphezu kweshumi nambili zikhona ngesikhathi esisodwa.Lapho izakhi eziningana zihlangana ebunyeni bensimbi engagqwali, ithonya labo liyinkimbinkimbi kakhulu kunalapho zikhona zodwa, ngoba kulokhu hhayi kuphela Cabanga ngendima yesici ngasinye ngokwaso, futhi unake ithonya labo elihlangene, ngakho-ke isakhiwo se-stainless stainless. insimbi incike isamba ithonya izakhi ezihlukahlukene.
Lapho insimbi engagqwali isetshenziselwa ukwenza amapayipi, ngokuvamile izinhlobo ezimbili zensimbi engagqwali zisetshenziswa: 304 futhi 316. Uma kuqhathaniswa namanye amapayipi, insimbi engagqwali inezinzuzo ezilandelayo:
Ukumelana nokugqwala okuhle. Iqinile futhi i-ductile. Kulula ukwakha nokushisela. Akunqunyelwe izinga lokugeleza kwamanzi, izinga eliphezulu lokugeleza lingafinyelela ku-30 m / s. Ifanele izingxenye ezihlukahlukene zamakhemikhali zamanzi okuphuza.Ukunakekelwa okuncane, izindleko eziphansi zomjikelezo wempilo. Izindlela zokuxhuma eziningi nezinhlobo ezahlukene zamalunga. Asikho isidingo sanoma iyiphi i-ejenti yokuhlanza amanzi ngaphandle kokulawula amagciwane. Ayinabuthi. 100% iyasebenziseka kabusha. Cabangela izindleko zokufaka zokuqala.
Izindleko zokuqala zensimbi engagqwali ngokuvamile ziphakeme, kodwa kunezindlela eziningi zokonga imali:
Akukho ukunamathela okumelana nokugqwala okudingekayo. Izindleko zemishini yokusekelayo ziyehliswa. Izingxenye zensimbi engagqwali azisindi futhi zidinga ukwesekwa kwesakhiwo esincane. Izingxenye zesisindo ezilula.Izindleko eziphansi zokuhamba nezokufaka. Amazinga okugeleza aphezulu asho ukuthi amapayipi amancane obubanzi angasetshenziswa. Ayikho i-corrosion allowance edingekayo, Ukuvumela izindonga zamapayipi amancane. Izindleko zomjikelezo wokuphila.
Nakuba izindleko zokuqala zensimbi engagqwali ziphezulu, izindleko zomjikelezo wempilo ngokuvamile ziphansi ngenxa yokonga ezindlekweni zokusetshenziswa:
Indawo engaphakathi ebushelelezi inganciphisa amandla asetshenziswa iphampu. Yehlisa inani lokuhlolwa nezindleko. Yehlisa izindleko zokunakekela futhi awudingi ukunameka kabusha. Asikho isidingo sokushintsha. Yehlisa isikhathi sokuphumula. Nweba impilo yesevisi. 100% igaywa kabusha ngemva kwempilo yesevisi.
Ukuze uqinisekise ukusetshenziswa okungcono kakhulu kwamapayipi ensimbi engagqwali, kufanele kuqinisekiswe ukuthi:Hamapayipi asempumalanga kufanele abe nokuthambekela kokusiza ukugeleza kwamanzi. Ufile iziphetho kufanele kugwenywe ngesikhathi design. Winkukhu esebenzisa i-304, i-chloride <200 ppm. Winkukhu esebenzisa i-316, i-chloride <1000 ppm. Use iizinto zokushisisa ezinokuqukethwe kwe-chloride ephansi (< 0.05% ion chloride encibilikayo emanzini). Uma into efakwayo izochayeka ku-chloride emanzi, njengalezi: Izindawo ezisogwini.Impahla yokuvikela kufanele yengezwe phakathi kwepayipi lensimbi engagqwali kanye nezinto ezifakwayo, njenge: Icwecwe le-Aluminium. Uama-sealants aphansi e-chloride kanye nezinto zokugcoba ezilwa ne-galling. AAmanzi kufanele akhishwe ngokushesha ngemva kokuhlolwa kwepayipi nge-hydrostatically.
Isikhathi sokuthumela: Apr-03-2023