Ububanzi bokufaka isicelo kanye nezidingo zobuchwepheshe zamavalvu esiteshi samandla (3)

Ububanzi bokufaka isicelo kanye nezidingo zobuchwepheshe zamavalvu esiteshi samandla (3)

I-valve iyingxenye ebalulekile yesethi enkulu ephelele yemishini, ikakhulukazi esetshenziselwa ukusika, ukudonsa, ukulawula ingcindezi kanye nokushintsha indlela yokuhamba ye-medium (impahla, amanzi, umusi, umoya namafutha, njll.) epayipini lenqubo. Izinga le-valve lithinta ngokuqondile ukukhiqizwa okujwayelekile kwalawa madivaysi, ukusebenza okuphephile nokungcoliswa kwemvelo, futhi kudlala indima ebalulekile. Izinhlobo ze-valve nokucaciswa ziningi, ikakhulukazi i-valve yesango, i-valve yembulunga, i-valve yokuhlola, i-valve yebhola, i-valve yokuphepha, i-valve yokunciphisa ingcindezi, i-valve yesicupho, i-valve ye-butterfly kanye ne-valve yenhloso ekhethekile, ukusetshenziswa okubanzi, umthamo omkhulu. Ngokwezibalo ezingaphelele kanye nokulinganisa okunzima, kusethi enkulu ephelele yemishini, ukutshalwa kwe-valve kubala cishe u-3% - 5% wesamba sokutshalwa kwezimali kumishini.
(l) Umkhiqizi wamavalvu nesimo sokukhiqiza
Izwe ezingeni lesifunda ngaphezu kokuphathwa kwamabhizinisi ama-valve angaba ngu-180, okuhlanganisa namabhizinisi angukhiye angu-19, kunesilinganiso esithile samadolobhana namabhizinisi ngamanye angaphezu kuka-2000, abakhiqizi abancane abanzima ukuthola izibalo, amabhizinisi asemalokishini kanye nabakhiqizi ngabanye basakazwa ku- I-Jiangsu ne-Zhejiang kanye ne-central Plains area. Embonini yamavalvu, amabhizinisi kahulumeni amakhulu naphakathi nendawo, ikakhulukazi amabhizinisi angomgogodla, asenenzuzo enkulu ezingeni lokukhiqiza ama-valve namandla obuchwepheshe. Abanye balaba bakhiqizi basebenzise ukumodela komugqa wesihlabathi se-resin, izingxenye eziyinhloko ze-valve kumathuluzi omshini we-CNC, imigqa ezenzakalelayo noma ukucubungula amathuluzi omshini wokuhlanganisa, indawo yokubeka uphawu ngokuhlukana okulinganayo nobuchwepheshe be-spray welding, uhlelo lokusebenza lokuklama i-valve ubuchwepheshe be-CAD, okuqinile okuphindwe kathathu. ukumodela. Ubuchwepheshe obuthuthukisiwe bukhuthaze ukuthuthukiswa kwezinga lokukhiqiza ama-valve kanye nekhwalithi yomkhiqizo. Kodwa iningi labakhiqizi be-valve baphonsa imishini yokuncibilikisa endala, ikakhulukazi ukumodela okwenziwa ngesandla, ukukhanda amathuluzi omshini ojwayelekile kanye nokusika ithuluzi elilodwa, okokusebenza kokubona akuphelele noma akuhlangabezani nendinganiso. Eminyakeni yamuva, abanye abakhiqizi valve amancane naphakathi kusukela ekuqiniseni ukuphathwa kwabasebenzi, ukubeka isisekelo, imishini kanye nokubamba izinguquko lobuchwepheshe, ukukhiqiza izinga lobuchwepheshe kancane kancane ngcono, grade umkhiqizo, ukubamba izinga lomkhiqizo, ukubamba emakethe, izinzuzo ezinkulu kwezomnotho, enamabhizinisi amakhulu noma angomgogodla ukuze alwe namandla, amandla ayo kanye namathemba entuthuko angeke abukelwa phansi.
(2) Izinga lomkhiqizo
Ngokusebenzisa amazinga kazwelonke, ukudluliswa kobuchwepheshe, ukuqinisa ukuhlolwa kanye ukuthola izindlela, ukuguqulwa komkhiqizo endala futhi uthuthukise izinga lokuklama kanye nenqubo, izinga lemikhiqizo ye-valve ezweni lethu liye lathuthuka kakhulu eminyakeni engaba ngu-20, izinhlobonhlobo zokucaciswa, ikakhulukazi. ku-hard valve butterfly valve, i-valve yesango eliyisicaba kanye ne-valve yebhola eliqinile ezigabeni nemikhiqizo yanda ngokushesha (izinhlobo ezingu-14 zama-valve ezikhona cishe uchungechunge lwe-2000, Imininingwane engaphezu kuka-12,000). Phakathi kwazo, ivolumu yohlu olubanzi lwama-valve ajwayelekile ngokuyisisekelo yafinyelela ezingeni lama-1980 phesheya, lawa ma-valve esakhiweni somkhiqizo nezinto ezibonakalayo kanye nezinye izici ze-valve ezikhiqizwa phesheya eminyakeni yamuva ziyefana, zingakhiqizwa ngokwezinga le-valve. izidingo zangaphandle, kodwa izinga lomkhiqizo alizinzile ngokwanele, kukhona igebe elithile namazwe athuthukile. Kodwa kwamanye ama-valve akhethekile, njenge-automatic control valve, i-hard seal ball valve, * * i-valve encane yokugeleza, i-ash slag valve, i-valve eyinhloko yokuhlukanisa umusi kanye ne-stabilizer relief valve, njll.), i-valve yepharamitha ephezulu (njengokusebenzisa izinga lokushisa ephakeme kuno-700 ℃, i-caliber kune-lm ball valve), izinto ze-valve (i-hydrogen sulfide resistant steel material, i-urea ne-carbon fibre composite materials), kanye negebe eline-actuator ye-valve yangaphandle, njll Okukhudlwana, ukushoda okuhlukahlukene, kufanele kube ngokusungulwa kobuchwepheshe. (okuhlanganisa ukwethulwa komklamo wokusebenzisa kabusha ama-valve) kanye nempumelelo yobuchwepheshe ezoxazululwa kancane kancane. Amavalvu, amandla asekelayo asekhaya angakwazi ukuhlangabezana ne-300000 t/a ethylene, 300000 t/a ammonia, urea, 60000 t, 520000 t/a ka-80000 t/a/a high-pressure polyethylene, polypropyle000 net/0olglycethylene 60000 , 80000 t/a vinyl chloride, 50000 t/a propylene holt, 30000 t/a, acetaldehyde, 45000 t/a, 2.5 million t/a yokucwenga, 3 butadiene 10,000 10,000 1M, 3M isiteshi somoya senuzi, 3M isikhungo somoya senuzi isikhungo sikagesi kanye nepayipi lokuhambisa amabanga amade namanye amathuluzi. Izinga lemishini emikhulu ephelele emazweni angaphandle liyakhula, likhuthaza izinga lokumataniswa kwama-valve nalo. Kukhona futhi umkhuba onjalo wentuthuko e-China, kodwa kunegebe elikhulu ekusekeleni umthamo uma kuqhathaniswa namazwe athuthukile, ikakhulukazi abonakala kuma-valve akhethekile, ama-valve amapharamitha aphezulu, amasistimu okulawula kanye nemishini yokushayela.
Ububanzi bokufaka isicelo kanye nezidingo zobuchwepheshe zamavalvu esiteshi samandla (III) Indlela yokulungiselela imodeli yomkhiqizo izolandela izinhlinzeko ze-JB/T4018. Uma igobolondo kuyi-WCB kanye ne-WC1, WC6 kanye ne-WC9, imodeli yomkhiqizo wevalvu izohlanganiswa ngokuvumelana nendlela eshiwo ku-JB/T4018 ku-carbon steel kanye ne-cr al-V alloy steel ngokulandelanayo. Izimpawu zomnyango kanye nokuhlonza isiphakamiso sikapende JB/T 106. Ngomzimba owenziwe nge-WCB, ukuhlonza nokudweba kuzobhekisela ezinhlinzekweni zezinto zensimbi ye-carbon; Ngemizimba yama-valve eyenziwe nge-WC1, WC6, WC9, ukuhlonza kuzobhekisela ezinhlinzekweni zezinto zensimbi ye-alloy. Ukushintsha umbala kapende kuvunyelwe ngokwesicelo somthengi.
Ukuxhuma: Ububanzi bokufaka isicelo kanye nezidingo zobuchwepheshe zamavalvu esiteshi samandla (II)
8 Ukumaka, ukupakisha, ukugcina nokuthutha
8.1 imaki
8.1.1 Indlela yokuhlanganisa yemodeli yomkhiqizo izolandela izinhlinzeko ze-JB/T4018. Uma igobolondo kuyi-WCB kanye ne-WC1, WC6 kanye ne-WC9, imodeli yomkhiqizo wevalvu izohlanganiswa ngokuvumelana nendlela eshiwo ku-JB/T4018 ku-carbon steel kanye ne-cr al-V alloy steel ngokulandelanayo.
8.1.2 Uma i-valve umzimba kuyi-WCB, WC1, WC6, WC9, inombolo yomkhiqizo wayo ingamakwa emzimbeni wevalvu.
8.1.3 Amapuleti ensimbi azofakwa emikhiqizweni yamavalvu aqeqeshiwe, futhi indawo okubopha kuyo kanye nosayizi wama-nameplates kuzohambisana nemidwebo yokuklama. Sicela ubhekisele ku-Appendix F ukuze uthole okuqukethwe kwe-nameplate
8.4 okungeke kuvimbele ukwahlulelwa kwemiphumela yokuhlolwa okungonakali.
8.1.5 Ukumakwa kwevalvu nokupenda okuhlonzayo Isiphakamiso JB/T 106. Emgwaqweni owenziwe nge-WCB, ukuhlonza nokupenda kufanele kubhekisele ezinhlinzekweni zezinto zensimbi ye-carbon; Ngemizimba yama-valve eyenziwe nge-WC1, WC6, WC9, ukuhlonza kuzobhekisela ezinhlinzekweni zezinto zensimbi ye-alloy. Ukushintsha umbala kapende kuvunyelwe ngokwesicelo somthengi. Amanye amamaki azokhishwa ngokwamazinga afanele.
8.2 ukupakisha
8.2.1 Ngaphambi kokupakishwa, i-valve kufanele ipendwe ngokuhambisana no-8.1.5, futhi izingxenye ezingapendiwe noma indawo esetshenzisiwe ngaphandle kongqimba bokugqwala kufanele igcotshwe ngamafutha avimbela ukugqwala.
8.2.2 Indawo evalekayo, indawo eshiselwe, indawo enentambo kanye nembobo engaphakathi yevalvu kuzo zombili iziphetho zeflange kufanele ivikelwe ngamapulaki noma amapuleti okuvala, futhi kufanele kube lula ukuhlanganisa nokuhlakazwa.
8.2.3 Imikhiqizo yama-valve izopakishwa futhi ithunyelwe ngokohlu lokupakisha: Ama-valve anevolumu enkulu angapakishwa enqunu ngokuvumelana nezidingo ze-oda, kodwa azoqinisekisa ukuthi angeke alimale ngesikhathi sokuthutha.
8.3 gcina
Imikhiqizo yamavalvu kufanele igcinwe ekamelweni elomile, elingena umoya futhi inqwabelane ngobunono njengoba kudingeka. Ukuvula isitoreji noma ukunqwabelaniswa kwemikhiqizo akuvunyelwe.
8.4 ezokuthutha
8.4.1 Ngesikhathi sokuthutha, idiski ye-valve izovalwa futhi idiski ye-valve yokuhlola izolungiswa; I-valve yepulaki kufanele ibe sesimweni sokukhulula; Isisindo se-valve ye-lever kufanele sikhishwe ku-lever, sibekwe ngokuhlukana, futhi i-lever ilungiswe. I-flange eseceleni noma i-groove yepayipi yegatsha yokushisela emikhawulweni yomibili yesiteshi se-valve ivinjwe nge-cover plate noma ipulaki ukuze kuvinjelwe ukungena kokungcola nokukhucululwa kwendle.
8.4.2 Ingxenye esobala yesiqu izovikelwa.
9 Ukulethwa Kwefayela
Amadokhumenti okulethwa ahlanganisa isitifiketi somkhiqizo, uhlu lokupakisha umkhiqizo, kanye nemiyalelo yokufaka kanye nokusebenza komkhiqizo. Okuqukethwe okuyisisekelo kukhonjisiwe kusithasiselo G, H kanye nami ngokulandelana
Isithasiselo A
(Isithasiselo Esinolwazi)
ukuhleleka
A.1 Umhlahlandlela wezidingo ze-oda eziyisisekelo unikezwe umthengi kuThebula A.1.
Ithebula A.1 Izidingo eziyisisekelo ze-oda
A.2 Ithebula A.2 inikeza iziyalezo ezengeziwe kubathengi ngezidingo ezithile zoku-oda zezinhlobo ezahlukene zamavalvu.
Ithebula A.2 Izidingo ze-oda elikhethekile
Isithasiselo B
(Isithasiselo Esijwayelekile)
Ukucindezela - izinga lokushisa
B.1 Ithebula B.1~ B.17 libonisa ukuthi impahla yegobolondo ingu-20.25. Zg200-400. Zg230-450.15crmo.zg20crmo.12crmo v. 15Cr1 Molv.zG20CrMov.zG15Cr1Mo1v.1Cr5Mo. ZG1Cr5Mo. Amavalvu angu-1Cr18Ni9Ti kanye ne-ZG1Cr18Ni9Ti, Ukucindezela kwawo okulinganiselwe ngu-0.1 Mpa.0.25 Mpa.0.4 Mpa.0.6 Mpa.1.0 Mpa.1.6 mpa.2.5 Mpa.4.0 Mpa.6.3 Mpa.10.0 Mpa.120.0 MP. Ukucindezela kumazinga okushisa ku-25.0 Mpa.32.0 Mpa.42.0 Mpa.50.0 Mpa.63.0 MPa.
B.2 Amathebula B.18 ukuya ku-B.21 abonisa amanani ekilasi le-pressure-temperature yamavalvu anento yegobolondo i-WCB.WC1.WC6.WC9 yesigaba sephawundi 150.300.600.900.1500.2000.2500.3500.4500 ngokulandelanayo.