Imikhiqizo
Ivalvu ye-SDV (Valve Valve)
✧ Incazelo
Ivalvu ye-SDV (Valve Shut Down) iyivalvu enembobo emise okuka-V ohlangothini olulodwa lwe-spool yebhola elinguhhafu. Ngokulungisa ukuvulwa kwe-spool, indawo yesiphambano sokugeleza okuphakathi iyashintshwa ukuze kulungiswe ukugeleza. Ingase futhi isetshenziselwe ukulawula ukushintsha ukubona ukuvulwa noma ukuvala ipayipi. Inomphumela wokuzihlanza, ingafinyelela ukulungiswa kokugeleza okuncane ebangeni elincane lokuvula, isilinganiso esiguquguqukayo sikhulu, esifanele i-fiber, izinhlayiya ezinhle, imidiya ye-slurry.
Ingxenye yokuvula neyokuvala ye-valve yebhola yohlobo lwe-V iyindilinga enesiteshi esiyindilinga, futhi ama-hemispheres amabili axhunywe ngebhawodi futhi ajikeleze ngo-90 ° ukuze afeze injongo yokuvula nokuvala.
Isetshenziswa kabanzi ohlelweni lokulawula okuzenzakalelayo lwe-petroleum, imboni yamakhemikhali nokunye.
✧ Amapharamitha we-Welded Full Ball Valves Side Entry
| Umkhiqizo | I-valve ye-SDV (Valve yokuvala) (Imbobo ye-V) |
| Ububanzi bokuzisholo | I-NPS 2”, 3”, 4”, 6”, 8”, 10”, 12”, 14”, 16”, 20” |
| Ububanzi bokuzisholo | Ikilasi 150, 300, 600, 900, 1500, 2500. |
| Qeda Ukuxhumana | Flanged (RF, RTJ), BW, PE |
| Ukusebenza | I-Lever, I-Worm Gear, Isiqu Esingenalutho, I-Pneumatic Actuator, I-Actuator kagesi |
| Izinto zokwakha | Ukusakaza: A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A. 5A, Inconel, Hastelloy, Monel |
| Isakhiwo | Ibhore Eligcwele noma Elincishisiwe, RF, RTJ, BW noma PE, Ukungena okuseceleni, ukungena okuphezulu, noma ukwakheka komzimba okushiselwe I-Double Block & Bleed (DBB), Ukuhlukaniswa Okuphindwe Kabili & Kopha (DIB) Isihlalo esiphuthumayo kanye nomjovo wesiqu Idivayisi ye-Anti-Static |
| Umklami kanye nomkhiqizi | I-API 6D, API 608, ISO 17292 |
| Ubuso Nobuso | I-API 6D, ASME B16.10 |
| Qeda Ukuxhumana | I-BW (ASME B16.25) |
| I-MSS SP-44 | |
| I-RF, RTJ (ASME B16.5, ASME B16.47) | |
| Ukuhlolwa nokuhlolwa | I-API 6D, i-API 598 |
| Okunye | I-NACE MR-0175, NACE MR-0103, ISO 15848 |
| Iyatholakala futhi nge | I-PT, UT, RT,MT. |
| Umklamo ophephile womlilo | I-API 6FA, API 607 |
✧ Izici ze-valve ye-SDV (Valve Valve) (Imbobo ye-V)
1. ukumelana noketshezi kuncane, i-coefficient yokugeleza inkulu, isilinganiso esiguquguqukayo siphezulu. Ingafinyelela ku-:100:1, enkulu kakhulu kunesilinganiso esilungisekayo sevalvu elawulayo yesihlalo esisodwa esiqondile, ivalve elawulayo enezihlalo ezimbili kanye nevalve elawula umkhono. Izici zayo zokugeleza cishe zilingana namaphesenti.
2. ukubekwa uphawu okuthembekile. Ibanga lokuvuza lesakhiwo sensimbi eqinile yi-Class IV ye-GB/T4213 "Pneumatic Control Valve". Ibanga elivuzayo lesakhiwo sophawu oluthambile Ikilasi V noma Ikilasi VI le-GB/T4213. Ngesakhiwo sokuvala esiqinile, indawo yokuvala isisekelo sebhola ingenziwa nge-chromium plating, i-cobalt esekwe phezu kwe-cemented carbide, ukufafaza i-tungsten carbide ukumelana nokugqoka, njll., ukuthuthukisa impilo yesevisi ye-valve core seal.
3. vula futhi uvale ngokushesha. I-valve yebhola yohlobo lwe-V iyi-angular stroke valve, kusukela evulekile ngokugcwele kuya e-spool evaliwe ngokugcwele I-Angle engu-90 °, ifakwe i-AT piston actuator pneumatic ingasetshenziselwa izimo zokusika ngokushesha. Ngemva kokufaka i-valve positioner kagesi, ingalungiswa ngokuvumelana ne-analog signal 4-20Ma ratio.
4. ukusebenza kahle kokuvimbela. I-spool yamukela umumo we-hemispherical ongu-1/4 ngesakhiwo sesihlalo esisodwa. Uma kunezinhlayiya eziqinile phakathi nendawo, ukuvinjelwa komgodi ngeke kwenzeke njengama-valve ebhola ohlobo lwe-O. Alikho igebe phakathi kwebhola elimise okwe-V kanye nesihlalo, esinamandla amakhulu okugunda, afaneleka ngokukhethekile ukulawulwa kokumiswa kanye nezinhlayiya eziqinile eziqukethe i-fiber noma izinhlayiya ezincane eziqinile. Ngaphezu kwalokho, kukhona ama-valve ebhola amise okwe-V ane-spool yomhlaba wonke, afaneleka kakhulu ezimweni zokucindezela okukhulu futhi anganciphisa ngokuphumelelayo ukuguquguquka komgogodla webhola lapho umehluko wengcindezi ephezulu wenziwa. Isebenzisa ukuvala isihlalo esisodwa noma isakhiwo sokuvala isihlalo esikabili. I-valve yebhola emise okwe-V ene-double seat seal isetshenziswa kakhulu ukulawula ukugeleza okuphakathi nendawo, kanti ephakathi nezinhlayiya kungabangela ingozi yokuvala umgodi ophakathi.
5. I-valve yebhola yohlobo lwe-V iyisakhiwo sebhola esingaguquki, isihlalo silayishwa ngentwasahlobo, futhi singahamba endleleni yokugeleza. Ingakwazi ukunxephezela ngokuzenzakalelayo ukugqoka kwe-spool, inwebe impilo yesevisi. Intwasahlobo ine-hexagonal spring, i-wave spring, i-disc spring, i-cylindrical compression spring nokunye. Lapho okuphakathi kunokungcola okuncane, kuyadingeka ukwengeza izindandatho zokuvala entwasahlobo ukuze zivikeleke ekungcoleni. Kumavalvu e-V-ball e-spool yomhlaba wonke avaliwe izihlalo ezimbili, kusetshenziswa isakhiwo sebhola elintantayo.
6. uma kunezidingo zomlilo kanye ne-anti-static, i-valve core yenziwe ngesakhiwo sensimbi esiqinile se-seal, isigcwalisi senziwe nge-graphite eguquguqukayo nezinye izinto eziphikisana nokushisa okuphezulu, futhi isiqu se-valve sinehlombe lokuvala. Thatha izinyathelo ze-electrostatic conduction phakathi komzimba we-valve, isiqu kanye nendilinga. Ukuthobelana ne-GB/T26479 isakhiwo esikwazi ukumelana nomlilo kanye nezidingo ze-GB/T12237 ze-antistatic.
7. I-valve yebhola emise okwe-V ngokusho kwesakhiwo sokuvala esihlukile somgogodla webhola, kunesakhiwo se-eccentric engu-zero, isakhiwo se-eccentric esisodwa, isakhiwo se-eccentric kabili, isakhiwo se-eccentric ezintathu. Isakhiwo esisetshenziswa kakhulu yi-zero eccentric. Isakhiwo se-eccentric singakhulula ngokushesha i-spool esihlalweni lapho sivulwa, sinciphise ukugqokwa kwendandatho yophawu futhi sandise impilo yesevisi. Uma ivaliwe, amandla angajwayelekile angakhiqizwa ukuze kuthuthukiswe umphumela wokuvala.
8. Imodi yokushayela ye-valve yebhola yohlobo lwe-V inohlobo lwesibambo, ukudluliswa kwegiya lezikelemu, i-pneumatic, i-electric, i-hydraulic, i-electro-hydraulic linkage nezinye izindlela zokushayela.
I-9.V-uhlobo lwe-valve ye-valve yokuxhumana inokuxhumana kwe-flange nokuxhumeka kwe-clamp izindlela ezimbili, ze-spool yomhlaba wonke, isakhiwo sokuvala izihlalo ezimbili kanye nokuxhumeka kwentambo kanye ne-socket welding, i-butt welding nezinye izindlela zokuxhuma.
I-10.ceramic ball valve nayo inesakhiwo esiwumgogodla webhola elimise okwe-V. Ukumelana nokugqokwa okuhle, kodwa futhi ukumelana nokugqwala kwe-asidi ne-alkali, kulungele kangcono ukulawulwa kwemidiya eyimbudumbudu. Ivalvu yebhola ene-fluorine iphinde ibe nesakhiwo sebhola esimise okuka-V, esisetshenziselwa ukulawula nokulawula i-asidi nemidiya edlayo ye-alkali. Uhla lokusetshenziswa kwe-valve yebhola yohlobo lwe-V luyanda kakhulu.
✧ Isevisi yangemuva kokuthengisa
Isevisi emva kokuthengisa ye-valve ye-SDV (Valve Valve Valve) (i-V port) ibaluleke kakhulu, ngoba isevisi efika ngesikhathi futhi ephumelelayo ngemva kokuthengisa ingaqinisekisa ukusebenza kwayo kwesikhathi eside nokuzinzile. Okulandelayo okuqukethwe kwesevisi yangemuva kokuthengisa kwamanye ama-valve amabhola antantayo:
1.Ukufakwa kanye nokugunyazwa: Abasebenzi besevisi yangemuva kokuthengisa bazoya kusayithi ukuze bafake futhi balungise iphutha le-valve yebhola elintantayo ukuze baqinisekise ukusebenza kwayo okuzinzile nokujwayelekile.
I-2.Ukugcinwa: Gcina njalo i-valve yebhola elintantayo ukuze uqinisekise ukuthi isesimweni esihle kakhulu sokusebenza futhi unciphise izinga lokuhluleka.
3.Ukuxazulula inkinga: Uma i-valve yebhola elintantayo ihluleka, izisebenzi zesevisi yangemuva kokuthengisa zizokwenza ukuxazulula inkinga endaweni ngesikhathi esifushane kakhulu ukuze kuqinisekiswe ukusebenza kwayo okuvamile.
4.Ukuvuselelwa nokuthuthukiswa komkhiqizo: Ngokuphendula ezintweni ezintsha kanye nobuchwepheshe obusha obuvela emakethe, abasebenzi besevisi yangemuva kokuthengisa bazoncoma ngokushesha ukuvuselela nokuthuthukisa izixazululo kumakhasimende ukuze bawanikeze imikhiqizo yamavalvu engcono.
5. Ukuqeqeshwa kolwazi: Izisebenzi zesevisi yangemuva kokuthengisa zizohlinzeka ngokuqeqeshwa kolwazi lwama-valve kubasebenzisi ukuze kuthuthukiswe izinga lokuphatha nokunakekela abasebenzisi besebenzisa ama-valve amabhola antantayo. Ngamafuphi, isevisi yangemuva kokuthengisa ye-valve yebhola elintantayo kufanele iqinisekiswe kuzo zonke izinkomba. Kungale ndlela kuphela engaletha abasebenzisi umuzwa ongcono nokuphepha kokuthenga.
