Iintlobo zeFlange

Njengoko sele kuchaziwe ngaphambili, iintlobo ze-flange ezisetyenziswa kakhulu ze-ASME B16.5 zezi: I-Welding Neck, i-Slip On, i-Socket Weld, i-Lap Joint, i-Threaded kunye ne-Blind flange. Ngezantsi uya kufumana inkcazo emfutshane kunye nenkcazo yohlobo ngalunye, olugqityiweyo ngomfanekiso ocacileyo.

Uninzi lweentlobo zeflange eziqhelekileyo

Welding Intamo flange

I-Welding Neck Flanges kulula ukuyibona kwihabhu ende ene tapered, ehamba ngokuthe chu ukuya kububanzi bodonga ukusuka kumbhobho okanye ukulingana.

Ihabhu ende ene tapered inika ukomelezwa okubalulekileyo ukuze kusetyenziswe kwizicelo ezininzi ezibandakanya uxinzelelo oluphezulu, ngaphantsi kwe-zero kunye / okanye amaqondo obushushu aphezulu. Ukutshintshwa okugudileyo ukusuka kwi-flange ubukhulu ukuya kumbhobho okanye ukuqina kodonga olufanelekileyo olwenziwa yi-taper kunenzuzo kakhulu, phantsi kweemeko zokugoba ngokuphindaphindiweyo, okubangelwa ukwandiswa komgca okanye enye imikhosi eguquguqukayo.

Ezi flange ziyakruquka ukuze zingqinelane nedayamitha yangaphakathi yombhobho wokukhwelana okanye ukudibanisa ngoko ke akuyi kubakho sithintelo sokuhamba kwemveliso. Oku kuthintela isiphithiphithi kwi-joint kwaye kunciphisa ukhukuliseko. Bakwabonelela ngonikezelo loxinzelelo olugqwesileyo kwi-tapered hub kwaye ngokulula i-radiographed ukuze ibonwe isiphene.

Olu hlobo lwe-flange luya kuthungelwa kumbhobho okanye lufakwe ngokungena okukodwa okupheleleyo, i-V weld (i-Buttweld).

Slip Kwiflange

Amandla abalwe ukusuka kwi-Slip On flange phantsi koxinzelelo lwangaphakathi lolo myalelo wesibini kwisithathu se-Welding Neck flanges, kwaye ubomi babo phantsi kokukhathala bumalunga nesinye kwisithathu sokugqibela.

Ukudibanisa kunye nombhobho kwenziwa nge-2 fillet welds, kunye nangaphandle nangaphakathi kwi-flange.

Umlinganiselo X emfanekisweni, umalunga:
Ubunzima bodonga lombhobho + 3 mm.

Esi sithuba siyimfuneko, ukuba ungonakalisi ubuso be-flange, ngexesha lenkqubo ye-welding.

Ukungalungi kweflange kukuba, loo mgaqo uhlala kuqala kuqala umbhobho kufuneka udityaniswe kwaye ulungelelaniswe nje. Indibaniselwano yeflange kunye nengqiniba okanye iflange kunye ne tee ayinakwenzeka, kuba izifakelo ezinegama azinasiphelo esithe ngqo, eso silayidi sipheleleyo kwiSlip On flange.

I-Socket Weld flange

Iiflange ze-Socket Weld zaqala zaphuhliswa ukuba zisetyenziswe kwimibhobho yoxinzelelo oluphezulu oluncinci. Amandla abo angatshintshiyo alingana ne-Slip On flanges, kodwa amandla abo okukhathala ngama-50% amakhulu kune-double-welded Slip On flanges.

Ukudibanisa kunye nombhobho kwenziwa nge-1 fillet weld, ngaphandle kwe-flange. Kodwa ngaphambi kwe-welding, kufuneka kudalwe indawo phakathi kwe-flange okanye ukufakwa kunye nombhobho.

ASME B31.1 1998 127.3 Ukulungiselela iWelding (E) Socket Weld Assembly ithi:
Kwindibano yokudibanisa phambi kwe-welding, umbhobho okanye ityhubhu iya kufakwa kwisokethi ukuya kubunzulu obukhulu kwaye ihoxiswe malunga ne-1/16 "(1.6 mm) kude noqhagamshelwano phakathi kokuphela kombhobho kunye negxalaba lesokhethi.

Injongo yokukhutshwa kwezantsi kwi-Socket Weld ngokuqhelekileyo ukunciphisa uxinzelelo olushiyekileyo kwingcambu ye-weld enokuthi yenzeke ngexesha lokuqiniswa kwentsimbi ye-weld. Umfanekiso ubonisa umlinganiselo X womsantsa wokwandisa.

Ukungalungi kwale flange kulungile i-gap, ekufuneka yenziwe. Ngeemveliso ezidlekayo, kwaye ikakhulu kwiinkqubo zemibhobho yensimbi engenasici, ukuqhekeka phakathi kombhobho kunye neflange kunokunika iingxaki zokubola. Kwezinye iinkqubo le flange nayo ayivumelekanga. Andiyiyo ingcali kulo mbandela, kodwa kwi-intanethi, uya kufumana ulwazi oluninzi malunga neendlela zokubola.

Kwakhona kule flange ibala, lo mgaqo uhlala kuqala kuqala umbhobho kufuneka udityaniswe kwaye ulungelelanise nje.

I-Lap Joint flange

I-Lap Joint Flanges inemilinganiselo efanayo efanayo njengayo nayiphi na enye i-flange ebizwa ngegama kweli phepha nangona kunjalo ayinabo ubuso obuphakanyisiweyo, basebenzise kunye "ne-Lap Joint Stub End".

Ezi flange ziphantse zafana ne-Slip On flange ngaphandle kweradiyasi ekudibaneni kobuso be-flange kunye nebhore ukuhlalisa isahlulo esijingiwe seStub End.

Ikhono labo lokubamba uxinzelelo lincinci, ukuba likhona, lingcono kune-Slip On flanges kunye nobomi bokudinwa kwindibano kuphela kweshumi kwe-Welding Neck flanges.

Zingasetyenziswa kuzo zonke iingcinezelo kwaye zifumaneka kuluhlu olupheleleyo lobungakanani. Ezi flange zityibilika phezu kombhobho, kwaye azidityaniswanga okanye zibotshelelwe kuyo. Uxinzelelo lwe-bolting ludluliselwa kwi-gasket ngoxinzelelo lwe-flange ngokubhekiselele ngasemva kombhobho wepayipi (I-Stub End).

I-Lap Joint flanges ineenzuzo ezithile ezikhethekileyo:

• Inkululeko yokujikeleza kumbhobho iququzelela umgca wemingxuma yebholithi yeflange echasayo.
• Ukungabikho koqhagamshelwano nolwelo kumbhobho kudla ngokuvumela ukusetyenziswa kweeflange zensimbi zekhabhoni ezingabizi kunye nombhobho onganyangekiyo.
• Kwiinkqubo ezikhukulisekayo okanye ezitshatyalaliswayo ngokukhawuleza, iiflange zinokuhlangulwa ukuze ziphinde zisetyenziswe.

Ukuphela kweStub

I-Stub End iya kuhlala isetyenziswa nge-Lap Joint flange, njengeflange exhasayo.

Oku kudityaniswa kwe-flange kuyasetyenziswa, kuxinzelelo oluphantsi kunye nezicelo ezingabalulekanga, kwaye yindlela enexabiso eliphantsi lokujika.
Kwinkqubo yepayipi yensimbi engenasici, umzekelo, i-carbon steel flange ingasetyenziswa, kuba ayidibanisi nemveliso kumbhobho.

Iziphelo zeStub zifumaneka phantse kuzo zonke iidamitha zemibhobho. Imilinganiselo kunye nokunyamezelwa kwe-dimensional kuchazwe kumgangatho we-ASME B.16.9. Iziphelo zeStub ezixhathisayo kubunzima bokukhanya (izifakelo) zichazwe kwi-MSS SP43.

I-flange enemisonto

I-Threaded Flanges isetyenziselwa iimeko ezikhethekileyo kunye nenzuzo yazo eyona nto inokuthi ifakwe kumbhobho ngaphandle kwe-welding. Ngamanye amaxesha i-weld yetywina iphinda isetyenziswe ngokudibanisa nentambo edibeneyo.

Nangona zisafumaneka kuninzi lweesayizi kunye noxinzelelo lwemilinganiselo, izixhobo ezijijeweyo namhlanje zisetyenziswa ngokukodwa kwiisayizi ezincinci zemibhobho.

I-flange ene-threaded okanye i-fitting ayifanelekanga kwisistim sombhobho kunye nobukhulu bendonga encinci, kuba intambo yokusika kumbhobho ayinakwenzeka. Ngoko ke, ukutyeba kodonga kufuneka kukhethwe…yintoni engqindilili ?

ASME B31.3 IsiKhokelo seMibhobho sithi:
Apho umbhobho wentsimbi uthungelwe kwaye usetyenziselwa inkonzo yomphunga ngaphezu kwe-250 psi okanye kwinkonzo yamanzi engaphezu kwe-100 psi ngamaqondo obushushu bamanzi angaphezu kwama-220 ° F, umbhobho awusayi kuthungwa kwaye ube nobunzima obulingana neshedyuli yama-80 ye-ASME B36.10.

I-flange eyimfama

IiBlind Flanges zenziwe ngaphandle kokubhoboza kwaye zisetyenziselwa ukuvala iziphelo zemibhobho, iiValuvu kunye nokuvuleka kweenqanawa zoxinzelelo.

Ukusuka kumbono woxinzelelo lwangaphakathi kunye nokulayishwa kwe-bolt, iiflange ezingaboniyo, ngokukodwa kwiisayizi ezinkulu, zezona ntlobo ze-flange ezigxininiswe kakhulu.

Nangona kunjalo, uninzi lwezi xinzelelo ziintlobo zokugoba kufutshane neziko, kwaye njengoko kungekho mgangatho ophakathi ngaphakathi, ezi flange zilungele izicelo zobushushu obuphezulu.