Ububanzi bokufaka isicelo kanye nezidingo zobuchwepheshe zamavalvu esiteshi samandla ukuze kulungiswe umonakalo wamagiya kumadivayisi okudlulisa ama-valve (I)
Indlela yokufaka amazinyo enamathelayo. Okokuqala kudingeka kukhishwe izinyo eliphukile, bese kucutshungulwa ku-dovetail groove empandeni yezinyo, kusetshenziswa into efanayo yokucubungula ucezu lwamazinyo olusha lube yijuba, sebenzisana ne-dovetail groove yegiya, gcina imvume engu-0.1 ~ 0.2 mm, futhi wenze imishini entsha. izinyo, yiba nesabelo esithile sokuqeda, ngemva kokuba isibopho esiqinile samazinyo amasha nezikhala, yenza isifanekiso samazinyo egiya, bese uqeda amazinyo amasha, Kuze kube yilapho isampula selithintana namazinyo. Le ndlela ifanele igiya elingasebenzi kahle nge-welding.
Umfanekiso 7-9 ubonisa indlela yokulungisa amazinyo onakele egiya.
Umfanekiso 7-9 ubonisa indlela yokulungisa amazinyo onakele egiya
1. Ukulungisa indlela yokulimala kwezinyo ngalinye legiya
(1) Indlela yezinyo yokunamathisela. Okokuqala kudingeka kukhishwe izinyo eliphukile, bese kucutshungulwa ku-dovetail groove empandeni yezinyo, kusetshenziswa into efanayo yokucubungula ucezu lwamazinyo olusha lube yijuba, sebenzisana ne-dovetail groove yegiya, gcina imvume engu-0.1 ~ 0.2 mm, futhi wenze imishini entsha. izinyo, yiba nesabelo esithile sokuqeda, ngemva kokuba isibopho esiqinile samazinyo amasha nezikhala, yenza isifanekiso samazinyo egiya, bese uqeda amazinyo amasha, Kuze kube yilapho isampula selithintana namazinyo. Le ndlela ifanele igiya elingasebenzi kahle nge-welding.
(2) Welding faka indlela yezinyo. Le ndlela ifanele igiya ngokusebenza kahle kwe-welding, futhi inqubo yayo yokulungisa iyafana nendlela yokubopha amazinyo okufaka.
(3) Indlela eshumekiwe yokubeka inqwaba. Ekubhobhozelweni kwezinyo eliphukile, elishumekwe enqwabeni yebhawodi eyodwa noma ngaphezulu, ngendlela ebheke ezinyoni eliphukile ebheke izinyo elisha, ***, icutshungulwe ibe izinyo elifanayo nezinyo lokuqala.
2. Ukulungisa ukuphuka kwegiya
Edivayisini yokudlulisa i-valve, uma igiya liphuka, kufanele lishintshwe kufakwe ingxenye entsha eyisipele. Uma ingekho ingxenye entsha eyisipele okwesikhashana, ingalungiswa ngokwendlela ekhonjiswe kuMfanekiso 7-10.
Ukulungisa ukuphuka kwegiya (1) Ukuphuka kwegiya eliphukile kulungiswa kumsele, bese igiya eliphukile lifakwa egiyeni ukuze lilulame, bese kulungiswa ukushisela.
(2) i-clamping groove yepuleti lokuqinisa yenziwa ebusweni obubili bonqenqema lwegiya. Ububanzi bangaphandle be-groove kufanele bube buncane ngo-5mm kunobubanzi bendilinga yempande, futhi ububanzi bangaphakathi bube buncane kunobubanzi obungaphakathi bomugqa. Ukujula kwe-groove kuncike kubukhulu begiya, ngokuvamile phakathi kuka-3 no-6mm.
(3) Ubukhulu be-clamping groove buyophumelela, futhi imoto iyokwenza amasongo amabili okuqinisa. Izindandatho ezimbili zokuqinisa zizokhishwa futhi zigxiliswe ku-clamping groove yobuso obubili.
Ububanzi bokusebenza kanye nezidingo zobuchwepheshe zamavalvu esiteshi sikagesi (1) Leli zinga licacisa izinga lokushisa kanye nezinga lokushisa lamavalvu esiteshi sikagesi kanye nezidingo ezijwayelekile zezinto zokwakha, ukwakheka, ukuhlolwa, ukumaka, ukupakisha, ukugcinwa, okokuthutha, imibhalo yokulethwa, njll., kanye inikeza umhlahlandlela wezidingo zoku-oda. Izinto ze-valve kufanele zikhethwe ngokuvumelana nezimo zokusetshenziswa kanye nezidingo zokukhiqiza; Ama-bolts, amantongomane nezinye izinto zokubopha kufanele zikhethwe ngokuya ngokusetshenziswa kwengcindezi nokushisa. Lapho ukhetha izinto zokuthwala izingxenye zegobolondo, izinga lokushisa eliphezulu lokusebenza lizocaciswa ku-Appendix C. Leli zinga linikeza izidingo eziphansi noma ezincane zokuklama i-valve, kodwa akuyona imfuneko ephelele yokuklama.
1 ububanzi
Leli zinga licacisa izinga lokushisa kanye nezinga lokushisa lamavalvu esiteshi samandla kanye nezidingo ezijwayelekile zezinto zokwakha, ukwakheka, ukuhlolwa, ukumaka, ukupakisha, ukugcinwa, ezokuthutha, imibhalo yokulethwa, njll., futhi linikeza umhlahlandlela wezidingo zoku-oda.
Leli zinga lisebenza kuzo zonke izinhlobo zama-valve asetshenziswa ohlelweni lwamanzi e-soda esiteshini samandla ngaphansi kwale mingcele elandelayo:
- Ukucindezela okuzisholo akukho ngaphezu kwe-42MPa, izinga lokushisa eliphezulu lokusebenza alikho ngaphezu kuka-450 ℃;
- Ingcindezi yokusebenza ayikho ngaphezu kuka-26MPa, izinga lokushisa eliphezulu lokusebenza alikho ngaphezu kuka-540 ℃;
- Ingcindezi yokusebenza ayikho ngaphezu kwe-6MPa, izinga lokushisa eliphezulu lokusebenza alikho ngaphezu kuka-570 ℃
2 Imibhalo eyinkomba evamile
Izinhlinzeko zamadokhumenti alandelayo zifakwe kuleli zinga lamazwe ngamazwe ngereferensi. Zonke izichibiyelo ezalandela (ngaphandle kweziphambeko) noma ukubuyekezwa kwezithenjwa zedethi azisebenzi kuleli Zinga lamazwe ngamazwe. Nokho, abathintekayo esivumelwaneni esingaphansi kwaleli Zinga Lamazwe Ngamazwe bayakhuthazwa ukuthi baphenye ukutholakala kwe-*** izinguqulo zala madokhumenti. *** izinguqulo zezinkomba ezingenasuku ziyasebenza kuleli Zinga lamazwe ngamazwe.
I-Radiography kanye nezigaba zekhwalithi zokuhlanganisa amalunga ezinqe ashiselwe ensimbi
I-GB/T 3985 Ishidi lerabha le-Asbestos
I-GB/T 4213-1992 Ivalvu yokulawula umoya
I-GB/T 4622.1~3 Isilonda se-gasket
Ukukhishwa kwensimbi - Ukuhlukaniswa kwama-radiographs namabanga efilimu
Ukubekezelela kobukhulu bokusakaza kanye nemvume yomshini (eqvISO 8062:1994)
I-GB/T 9112-1988 Izindlela zamapayipi ensimbi, izinhlobo ezijwayelekile kanye nemingcele
Amapayipi ensimbi e-Monolithic
Izinqe ezishiselwe amapayipi ensimbi
I-GB/T 9433-1988 Indlela yeBanga yokutholwa kokungena kanye namamaki wokubonisa amaphutha wokusakazwa kwensimbi
I-GB/T 9444-1988 Indlela yokuhlola izinhlayiya kazibuthe kanye nesilinganiso sekhwalithi sokusakazwa kwensimbi
Imininingwane yobuchwepheshe yamazinga okushisa kanye namavalvu okunciphisa ingcindezi eziteshini zikagesi
Ukucaciswa kwamavalvu okulawula isiteshi samandla
Ama-valve ensimbi oxhumano lwe-flanged - Ubude bokwakha (NEQ ISO 5752:1982)
Izixhumanisi zama-valve ama-multi-turn valve
Izixhumanisi zama-valve ajikelezayo ngokwengxenye
Amavalvu ensimbi - Izidingo ezijwayelekile (NEQ ANSI B16.34:1981)
Ukucaciswa kwe-copper alloy castings yama-valve enhloso evamile
Ukucaciswa kwe-austenitic steel castings yama-valve enhloso evamile
Inhloso evamile amavalvu esango ensimbi ane-flanged nezinqe
Ama-valve aphelele amavalvu eglobhu ensimbi ane-flanged kanye nama-valve okuhlola okuphakamisa
Amavalvu enhloso ejwayelekile - Amavalvu okuhlola ukujika kwensimbi
Amavalvu enhloso ejwayelekile anama-valve ensimbi ane-flanged na-butt-welded
Izidingo ezijwayelekile zamavalvu okuphepha (EQV ISO 4126:1984)
Indlela Yokuhlola Ukusebenza Kwevalvu Yezokuphepha (NEQ ANSI/ASTM PTC 25.3:1976)
Amavalvu okuphepha alayishwe entwasahlobo (NEQ JIS B8210:1978)
Ama-valve okwehlisa ingcindezi - Izidingo ezijwayelekile
Amavalvu okwehlisa umfutho — Indlela yokuhlola ukusebenza
Amavalvu okwehlisa ingcindezi yohlobo lomshayeli
Ubude besakhiwo bamavalvu
Izidingo zobuchwepheshe zamapayipi amapayipi (NEQ DIN 2535~2547, DIN 2573~2637)
Ilogo ye-valve ye-JB/T106 nopende wokuhlonza
I-JB/T 1613-1993 Ukucaciswa kwe-welding ye-boiler pressure element
I-JB/T 2203-1999 Ubude bokwakhiwa kwevalvu yokuphepha yasentwasahlobo
I-JB/T 2205-2000 Ubude bokwakhiwa kwevalvu yokunciphisa ingcindezi
I-JB/T 4018 indlela yokwenza imodeli yevalvu yesiteshi samandla
I-JB/T 5263-1991 Ukucaciswa kobuchwepheshe kokusakazwa kwensimbi kwamavalvu esiteshi samandla (NEQ ANSF/ASTM A 217M)
I-JB/T 6900-1993 ivalve yokukhipha amanzi
I-JB/T 7370 flexible graphite braided packing
I-JB/T 7927-1999 Izidingo zekhwalithi zokubukeka zokusakazwa kwensimbi kwama-valve
I-JB/T 8219-1999 Ama-actuator kagesi okulinganisa inqubo yezimboni kanye nezinhlelo zokulawula
Ukucaciswa kwemishini kagesi yamavalvu ajwayelekile
Ukucaciswa kwamadivayisi kagesi ama-valve angashi
I-JB/T 9624-1999 Ukucaciswa kwevalvu yokuphepha yesiteshi sikagesi
JB/T 9625-1999 Ukucaciswa kobuchwepheshe kokusakazwa kwensimbi yokucindezela kwezisekeli zamapayipi okubhayela
I-JB/T 9626-1999 Ukucaciswa kwe-boiler forgings
JC/T 67 irabha asbestos ukupakisha
JC/T 68 uwoyela ofakwe i-asbestos ukupakisha
Sdgj6-1990 Izinhlinzeko zezobuchwepheshe zokubalwa kwengcindezi yamapayipi amanzi esitimu ezitshalweni zamandla ashisayo
3 Imigomo nezincazelo
Imigomo nezincazelo ezilandelayo ziyasebenza kuleli Zinga lamazwe ngamazwe.
Isilinganiso sezinga lokushisa lokucindezela
Ukucindezela kokusebenza okuphezulu okuvunyelwe kokusebenza kwento ekhethiwe njengoba kuboniswa ukucindezela kwegeji kumazinga okushisa athile okusebenza.
4 Izidingo ze-oda
Ukuze kube lula uku-oda komthengi, ithebula A.1 kusiThasiselo A linikeza umhlahlandlela wezidingo zoku-oda eziyisisekelo ukuze kusetshenziswe ireferensi, futhi Ithebula A.2 linikeza umhlahlandlela wezidingo ezikhethekile zoku-oda zezinhlobo ezahlukene zamavalvu.
Ingcindezi - isigaba sokushisa
Ingcindezi - amakilasi okushisa ezinto ezahlukahlukene acaciswe kuSithasiselo B.
6 Izidingo Zobuchwepheshe
6.1 izidingo ezijwayelekile
6.1.1 Ukwakhiwa kwamavalvu kufanele kuhlangabezane nezidingo zokuphepha nokuthembeka.
6.1.2 Ngaphezu kokuhlangabezana nezidingo zaleli zinga, amavalvu esiteshi sikagesi azohlangabezana nezidingo zalawa mazinga alandelayo:
A) Amavalvu ensimbi azohambisana nezidingo ze-GB/T 12224-1989;
B) Amavalvu esango azohambisana nezinhlinzeko ze-GB/T 12234-1989;
C) Amavalvu eglobhu kanye nama-valve okuhlola kufanele ahambisane nezinhlinzeko ze-GB/T 12235-1989 kanye ne-GB/T 12236-1989;
D) Amavalvu ebhola azohambisana nezinhlinzeko ze-GB/T 12237-1989;
E) Amavalvu okuphepha azohambisana nezidingo ze-GB/T 12241-1989, GB/T 12242-1989, GB/T 12243-1989 kanye ne-JB/T 9624-1999;
F) Amavalvu okwehlisa ingcindezi azohambisana nezidingo ze-GB/T 12244-1989, GB/F 12245-1989 noma GB/T 12246-1989;
G) I-valve yokunciphisa izinga lokushisa nokucindezela kufanele ihambisane nezinhlinzeko ze-GB/T 10868-1989;
H) Ivalvu elawulayo izohambisana nezinhlinzeko ze-GB/T 10869-1989;
I) Amavalvu e-Blowdown azohambisana ne-JB/T 6900-1993;
J) Idivayisi kagesi yevalvu izohambisana ne-JB/ T8528-1997AK JB/T8529-1997;
K) Ivalvu yokufaka ugesi kufanele ihambisane nezinhlinzeko ze-JB/T 8219-1999;
L) Ama-valve pneumatic actuators azothobelana nezinhlinzeko ze-GB/T 4213-1992.
6.1.3 Uma ubuchwepheshe obusha (okufana nesakhiwo esisha, impahla entsha, inqubo entsha, njll.) kwamukelwa futhi izidingo zobuchwepheshe zaleli zinga zingakhaviwe, buyokwamukelwa ngemva kokuhlolwa okudingekayo noma ukuhlolwa okufanelekile futhi kuvunywe umthengi. .
6.2 impahla
6.2.1 Impahla yevalvu izokhethwa ngokuya ngezimo zokusebenzisa kanye nezidingo zokukhiqiza; Ama-bolts, amantongomane nezinye izinto zokubopha kufanele zikhethwe ngokuya ngokusetshenziswa kwengcindezi nokushisa. Lapho ukhetha izinto zokuthwala izingxenye zegobolondo, izinga lokushisa eliphezulu kakhulu lizocaciswa ku-Appendix C. Sicela ubhekisele kuSithasiselo D ngomhlahlandlela wokukhetha izinto ezingaphezulu nobulukhuni.
6.2.2 Izinto zokwakha nezinto zokushisela ezisetshenziselwa izingxenye ezithwalayo zevalvu kufanele zihambisane namazinga afanele kazwelonke, izindinganiso zezimboni noma izindinganiso zezinto ezibonakalayo ezishiwo kwinkontileka ye-oda. Iyunithi yokukhiqiza impahla kufanele iqinisekise ikhwalithi yezinto zokwakha futhi inikeze izitifiketi zekhwalithi. Izinto zensimbi nezinsimbi ezishiselwe kufanele zibe namandla acacisiwe, ukuqina, ubude besibili nokumelana nokukhathala okuhle nokumelana nokugqwala ngaphansi kwezimo zesevisi.
6.2.3 Ukufakwa kwensimbi kuzohambisana ne-JB/T 9625-1999 noma i-JB/T 5263-1991.
6.2.4 Ukuqamba amanga kuzohambisana ne-JB/T 9626-1999.
6.2.5 Ukufakwa kwensimbi ye-Austenitic kuzohambisana nezinhlinzeko ze-GB/T 12230-1989.
6.2.6 Ukufakwa kwengxube yethusi kuzohambisana nezinhlinzeko ze-GB/T 12225-1989.
Isikhathi sokuthumela: Jul-26-2022
