2507 duplex insimbi engagqwali valve isebenzisa JB/T7746 “Compacti-valve yensimbi” isingeniso esijwayelekile semboni
Inkampani yethu igxile ekukhiqizeni amanzi olwandle 2205 duplex insimbi engagqwali ibhola valve 2507 duplex engagqwali ibhola valve 2205 duplex insimbi engagqwali iglobe valve 2507 duplex insimbi engagqwali iglobe valve 2205 duplex insimbi engagqwali isango ivalvu 2507 insimbi engagqwali duplex 2507 insimbi duplex 2507 stain stain valve 2507 stain stain 2 isihlungi sohlobo 2507 isihlungi se-duplex sensimbi engagqwali 2205 hlola i-valve 2507 i-valve yokuhlola neminye imikhiqizo
I-Seawater 2205 duplex steel valve molybdenum duplex insimbi engagqwali inokumelana okuhle nokugqwala kwe-chloride ngaphansi kwengcindezi ephansi. Ngokuvamile, i-18-8 uhlobo lwensimbi engagqwali ye-austenitic ijwayele ukugcizelela ukuphuka kokugqwala kusixazululo se-chloride engathathi hlangothi ngaphezu kuka-60C. Izishintshisi zokushisa, ama-evaporator nezinye izinto ezenziwe ngalolu hlobo lwensimbi engagqwali endaweni yezimboni ye-trace chloride ne-hydrogen sulfide zinokuthambekela kokukhiqiza ukuqhekeka kokugqwala kwengcindezi, kuyilapho insimbi engagqwali eyi-duplex inokumelana okuhle.
(2) Amanzi olwandle 2205 duplex steel valve molybdenum duplex insimbi engagqwali inokumelana nokugqwala okuhle. Amandla okugoba okubalulekile ensimbi engagqwali ye-duplex afana nalawo ensimbi engenasici ye-austenitic enokumelana okufanayo komgodi (PRE=Cr%+3.3Mo%+16N%). Ukumelana nokugqwala kwe-duplex insimbi engagqwali kanye ne-austenitic stainless steel kufana nalokho kwe-AI 316L. Ukumelana nokugqwala kwensimbi engagqwali ephezulu ye-chromium duplex equkethe u-25% Cr, ikakhulukazi i-nitrogen, iphakeme kunaleyo ye-AI 316L.
(3) Ngokumelana okuhle kokugqwala kokukhathala nokugqoka ukusebenza kokugqwala. Kwezinye izimo ezonakalisayo eziphakathi, ezifanele ukukhiqizwa kwamaphampu, ama-valve nezinye izinto zamandla.
(4) Izakhiwo ezinhle ezibanzi zemishini. Amandla aphezulu namandla okukhathala, amandla okukhiqiza yi-18-8 uhlobo lwe-austenitic stainless steel izikhathi ezi-2. Esimeni sesixazululo esiqinile, ubude bufinyelela ku-25%, futhi inani lokuqina i-AK (V-notch) lingaphezu kuka-100J.
(5) Ukushisela okuhle, ukuthambekela kokuqhekeka okuncane okushisayo, ngokuvamile ngaphambi kokushisela ngaphandle kokushisa, ukushisela ngaphandle kokwelashwa kokushisa, kungashiswa nge-18-8 uhlobo lwensimbi engagqwali ye-austenitic noma i-carbon steel nokunye okungafani.
(6) Ibanga lokushisa elishisayo lokusebenza le-duplex insimbi engagqwali equkethe i-chromium ephansi (18% Cr) libanzi kunalelo le-18-8 austenitic stainless steel, futhi ukumelana kuncane. Ingagoqwa ngokuqondile ukuze ikhiqize ipuleti lensimbi ngaphandle kokubumba. Insimbi engagqwali e-Duplex equkethe i-chromium ephezulu (25% Cr) inzima kancane kunokucubungula okushisayo kwensimbi engenasici ye-austenitic, ingakhiqizwa ipuleti, ishubhu kanye nemikhiqizo yocingo.
(7) ukusebenza okubandayo kuka 18-8 uhlobo austenitic insimbi engagqwali umsebenzi ukuqina umphumela mkhulu, ku-tube, ipuleti deformation at esigabeni sokuqala, kudingeka sisebenzise ukucindezeleka okukhulu deformation.
(8) Uma kuqhathaniswa nensimbi engagqwali ye-austenitic, i-thermal conductivity ephezulu, i-coefficient ephansi yomugqa wokwandisa, ilungele ukufakwa kwemishini kanye nokukhiqizwa kwepuleti eliyinhlanganisela. Ibuye ifanele ukwenza i-tube core yesishintshi sokushisa, futhi ukusebenza kahle kokudluliswa kokushisa kuphakeme kunaleyo ye-austenitic stainless steel.
(9) Kusenezinhlobonhlobo zokuthambekela kokuqina kwensimbi engagqwali ye-chromium ferrite ephezulu, akufanele isetshenziswe ezimweni zokusebenza ezingaphezu kuka-300C. Ukuncipha kokuqukethwe kwe-chromium kwensimbi engagqwali eyi-duplex, kuyancipha ukulimala kwesigaba esilinganayo se-brittle.
I-JB/T7746 “I-Compact Steel Valve” Izinga Lemboni yethula umklamo wamanje kanye nezinga lokukhiqiza lokubumba i-valve yensimbi enobubanzi obuncane ezweni lethu yi-JB/T 7746-2006 “Compact Steel Valve”, izinga livunyiwe futhi lakhululwa ngoSepthemba 14, 2006. , usuku lokuqalisa lungoMashi 1, 2007. Esikhundleni se-JB/T 7746-1995 "I-diameter encishisiwe i-Valve yensimbi eyakhiwe".
I. Uhlolojikelele
Njengamanje, indinganiso yokuklama nokukhiqiza ye-valve encane yobubanzi obuyinsimbi ezweni lethu yi-JB/T 7746-2006 “I-Compact Steel Valve”, leli zinga livunyiwe futhi lakhishwa ngoSepthemba 14, 2006, usuku lokuqalisa lungoMashi 1, 2007. , esikhundleni se-JB/T 7746-1995 “I-diameter Encishisiwe I-Forged Steel Valve”.
Lokhu kubuyekezwa kubhekisela ku-American Petroleum Institute API 602-1998 “Amavalvu Esango Lensimbi Eyizingqimba Yokuxhunywa Komzimba Okunamaphiko, Anemicu, Ashiselwe futhi Anwetshiwe” futhi ahambisana ne-API 602 ezidingweni ezinkulu zobuchwepheshe.
Leli zinga licacisa uhlobo lwesakhiwo, izidingo zobuchwepheshe, izindlela zokuhlola, imithetho yokuhlola, izidingo zokumaka kanye nokuhlinzekwa kwamavalvu ensimbi ancishisiwe.
Leli zinga lisebenza emasangweni, embulungeni, kumavalvu okuhlola okuphakamisa kanye nokushwiba. Ukuze uthole intambo yangaphakathi kanye nama-valve welding we-socket ane-pressure yegama elithi PN18~PN250 kanye nosayizi okuzisholo DN8~DN65; Futhi kusebenza ku-PN18~PN250 yengcindezi, usayizi ojwayelekile DN8~DN100 uxhumano lwe-flange kanye ne-butt welding valve. Isisetshenziswa esisebenzayo samanzi, i-petroleum nemikhiqizo ehlobene ne-petroleum, igesi yemvelo, isitimu, njll.
Leli zinga lisebenza futhi kuma-valve anoxhumo oluvalwe ngezinsimbi, ingcindezi yegama elithi PN16~PN250, usayizi wegama DN8~DN50.
Okubili, i-JB/T 7746 “i-valve yensimbi ehlangene” umehluko omkhulu phakathi kwamazinga amadala namasha
1, ukushintshwa kwegama, indinganiso yokuqala ye-JB/T7746-95 ebizwa ngokuthi “I-valve yensimbi eyakhiwe ngobubanzi obuncishisiwe”, indinganiso entsha ye-JB/T 7746-2006 ebizwa ngokuthi “i-compact steel valve”;
2. Kwenyuswa izidingo ze-oda;
3. Engeza "I-Bellows Seal Seal Valve Structure", "Nominal Pressure PN250 Valve-temperature-temperature Grade in Appendix B" kanye "Nesinqe sokushisela Usayizi kuSithasiselo C";
I-4, ububanzi besicelo kwandisa ububanzi bebanga lokucindezela kanye nesakhiwo sekhava ye-valve yi-valve evaliwe, izinga lokucindezela le-valve likhuphuka i-PN16, i-PN63, intambo yangaphakathi, ukwenza ububanzi be-valve yokushisela kwandisa i-DN8 ne-DN65, i-flange. kanye nobubanzi bevalve yokushisela izinqe kwandisa i-DN8, DN65, DN80,DN100;
5. Isakhiwo esivamile se-valve yokuvala i-bellows yengezwa enganekwaneni;
6. Isilinganiso se-pressure-temperature sevalvu ye-PN250 esishiwo eSigabeni 5.1 sizohambisana neSithasiselo B;
7. Esigabeni 5.2 "I-valve body yokuxhuma ukuphela", isigaba sihlukaniswe izingxenye ezine ngokuya ngefomu lokuxhuma, futhi ubukhulu besakhiwo se-valve ene-socket welding kanye nokuxhumeka kwentambo yangaphakathi kubuyekezwa, nobukhulu be-socket welding. futhi isiphetho sokushisela izinqe sicacisiwe;
8. Esigabeni 5.4, kunezelwa izinhlinzeko zamabhawodi namantongomane asetshenziswa kuma-valve ezinto ezahlukene;
9. Esigabeni 5.5, ukuhleleka kokulandisa kwezingxenye kwashintshwa, futhi izinhlinzeko zezinto zangaphakathi ezihambisana nezinto ezihlukene zomzimba zengezwa, kanye nencazelo yobubanzi obuncane bangaphakathi besiqu se-valve kanye nezinhlinzeko zomucu we-valve. isiqu se-valve sengeziwe;
10. Okuqukethwe ekuhlolweni kwangaphambili kwemboni kanye nokuhlolwa kwefomu kwengezwa ku-7.1 naku-7.2.
3. Umehluko omkhulu phakathi kwamazinga e-JB/T 7746-2006 kanye ne-API 602
I-JB/T 7746-2006 ejwayelekile ihambisana ne-API 602-1998 “I-Flanged, threaded, welded and Body elongated connection of the compact steel gate valve”, leli zinga kanye ne-API 602-1998 izinga lokungaguquguquki alilingani, umehluko omkhulu Ngokulandelayo:
1. Uma kuqhathaniswa ne-API 602-1998, leli zinga lengeza ama-valve embulunga kanye nama-valve okuhlola ezinhlotsheni zenethiwekhi yamavalvu;
2. Uma kuqhathaniswa nezinga le-API 602-1998, amayunithi kuleli zinga asebenzisa isistimu yemethrikhi;
3. Uma kuqhathaniswa ne-API 602-1998, leli zinga lengeza izidingo zosayizi wesokhethi nezinqe zokushisela;
4. Ngokuphathelene ne-API 602-1998, leli zinga lengeza izidingo zobude besakhiwo zokushisela isokhethi namavalvu anentambo yangaphakathi;
5. Leli zinga likhansela okuqukethwe kwengxenye yokuxhumana kwe-valve enwebayo ku-API 602-1998 ejwayelekile;
6. Leli zinga likhansela okuqukethwe okumakwe ku-API 602-1998 ejwayelekile futhi esikhundleni salokho kubhekise ngqo ku-GB/T 12220 “Ama-Valve Marks”;
7. Okuqukethwe kweThebula 3 Izilinganiso Zezinga lokushisa Lokucindezelwa kwamavalvu esango ekilasi lama-800 lb ku-API 602-1998 sekwenziwe lula;
8. Leli zinga likhansela ukucaciswa kwezinto kuThebula 8 le-API 602-1998 ejwayelekile kanye nokuqukethwe kwezinga elihambisanayo le-ASTM;
9. Okuqukethwe kwe-stem material kuThebula 10 le-API 602-1998 kwenziwa lula ngokufanelekile kuleli zinga;
10, leli zinga likhansela okuqukethwe kwenombolo yophawu kanye nenombolo yophawu esikhundleni kuThebula 11 le-API602-1998 ejwayelekile;
11. Leli zinga likhansela okuqukethwe kokuthunyelwa kwe-Athikili 6 ngezinga le-API602-1998 futhi esikhundleni salokho libhekisela ku-JB/T 7928 “Izimfuneko Zokunikezwa Kwevalvu”;
12. Leli zinga lifinyezwe ngokufanelekile ku-Appendix A ye-API602-1998, “Izimfuneko Ezengeziwe Ze-Compact Bellows Sealed Gate Valves”, futhi zafakwa emzimbeni wezinga.
13. Uma kuqhathaniswa ne-API 602-1998, ukuphila kokucindezela okumile kwama-valve kucaciswe kuleli zinga;
14. Ngokuphathelene nezinga le-API 602-1998, leli zinga lengeza izimfuneko zokuhlolwa nokuhlolwa kwamavalvu ama-bellows;
15 Uma kuqhathaniswa ne-API 602-1998, leli zinga lengeza izidingo zokuhlolwa kwempilo yengcindezi emile, ukuhlolwa kwefekthri nokuhlolwa kohlobo lwamavalvu;
Iv. Izinkinga okufanele zinakwe uma usebenzisa leli zinga
Ithebula lesi-6 kuleli zinga licacisa ububanzi obuncane besiqu, lapho ububanzi besiqu bubhekisela kububanzi bendawo ephambanayo yesiqu ngokupakishwa.
Isikhathi sokuthumela: Nov-25-2022
