Mawonekedwe a Flange

Kodi nkhope ya Flange ndi chiyani?

Mitundu yosiyanasiyana ya nkhope za flange imagwiritsidwa ntchito ngati malo olumikizirana kuti akhazikitse zida zosindikizira. ASME B16.5 ndi B16.47 amatanthauzira mitundu yosiyanasiyana ya mawonekedwe a flange, kuphatikiza nkhope yokwezeka, zazikulu zazimuna ndi zazikazi zomwe zimakhala ndi miyeso yofanana kuti zipereke malo olumikizana nawo.

Zina za flange zomwe zimaphimbidwa ndi miyezoyi ndi monga zazikulu ndi zazing'ono za lilime-ndi-groove, ndi mphete ya mphete yoyang'ana makamaka pazitsulo zamtundu wa mphete.

Nkhope Yokwezeka (RF)

The Raised Face flange ndi mtundu wofala kwambiri womwe umagwiritsidwa ntchito popanga mbewu, ndipo umadziwika mosavuta. Amatchulidwa ngati nkhope yokwezeka chifukwa mawonekedwe a gasket amakwezedwa pamwamba pa nkhope yozungulira yozungulira. Mtundu wa nkhope uwu umalola kugwiritsa ntchito mitundu yambiri ya mapangidwe a gasket, kuphatikizapo mitundu ya mapepala a mphete athyathyathya ndi zida zachitsulo monga chilonda chozungulira ndi mitundu iwiri ya jekete.

Cholinga cha RF flange ndikuyika kupanikizika kwambiri pagawo laling'ono la gasket ndikuwonjezera mphamvu yolumikizirana. Diameter ndi kutalika zili mu ASME B16.5 yofotokozedwa, ndi gulu lamphamvu ndi m'mimba mwake. Kupanikizika kwa flange kumatsimikizira kutalika kwa nkhope yokwezeka.

Kumaliza kwa nkhope ya flange kwa ASME B16.5 RF flanges ndi 125 mpaka 250 µin Ra (3 mpaka 6 µm Ra).

Kutalika kwa nkhope

Pamiyeso ya kutalika kwa H ndi B pamiyeso yonse yofotokozedwa ya flanges patsamba lino, kupatula Lap Joint flange, ndikofunikira kumvetsetsa ndikukumbukira zotsatirazi:

M'makalasi opanikizika 150 ndi 300, kutalika kwa nkhope yokwezeka ndi pafupifupi 1.6 mm (1/16 inchi). M'magulu awiriwa, pafupifupi onse ogulitsa ma flanges, amawonetsa mu kalozera kapena kabuku kawo, miyeso ya H ndi B kuphatikiza kutalika kwa nkhope. ((mku. 1))

M'makalasi opanikizika 400, 600, 900, 1500 ndi 2500, kutalika kwa nkhope yokwezeka kumakhala pafupifupi 6.4 mm (1/4 inchi). M'makalasi opanikizika awa, ogulitsa ambiri amawonetsa miyeso ya H ndi B kupatula kutalika kwa nkhope. (mku. 2)

Nkhope Yathyathyathya (FF)

Flat Face flange ili ndi gasket pamwamba pa ndege yomweyo monga nkhope yozungulira yozungulira. Mapulogalamu ogwiritsira ntchito ma flanges a nkhope nthawi zambiri amakhala omwe mating flange kapena flanged amapangidwa kuchokera ku casting.

Ma flanges amaso athyathyathya sayenera kumangirizidwa kumtunda wokwezeka. ASME B31.1 imanena kuti polumikiza ma flanges achitsulo ku nkhope yosalala ndi ma flanges a zitsulo za kaboni, nkhope yokwezeka pa flange ya chitsulo cha kaboni iyenera kuchotsedwa, ndikuti gasket yonse ya nkhope ikufunika. Izi ndikuteteza kuti flange yachitsulo yopyapyala, yowonda pang'ono isadutse mumpata wobwera chifukwa cha kukwezeka kwa nkhope ya carbon steel flange.

Mtundu Wa mphete (RTJ)

Mitundu Yophatikiza Yophatikiza Flanges nthawi zambiri imagwiritsidwa ntchito pazovuta kwambiri (Makalasi 600 ndi apamwamba) komanso / kapena ntchito zotentha kwambiri kuposa 800 ° F (427 ° C). Amakhala ndi ma grooves odulidwa kumaso awo omwe amawombera zitsulo. The flanges chisindikizo pamene omangika mabawuti compress ndi gasket pakati flanges mu grooves, deforming (kapena Coining) ndi gasket kuti kukhudzana wapamtima mkati grooves, kupanga zitsulo zitsulo chisindikizo.

Flange ya RTJ ikhoza kukhala ndi nkhope yokwezeka yokhala ndi ring groove yomwe imayikidwamo. Nkhope yokwezeka iyi simagwira ntchito ngati gawo lililonse la njira zosindikizira. Kwa ma flange a RTJ omwe amasindikizidwa ndi ma ring gaskets, nkhope zokwezeka za ma flange olumikizidwa ndi olimba amatha kulumikizana. Pankhaniyi, gasket wothinikizidwa sadzakhala ndi katundu wowonjezera kupyola nyonga bawuti, kugwedera ndi kuyenda sangathe kupitirira kuphwanya gasket ndi kuchepetsa kulumikiza kukangana.

Mphete Yophatikiza Ma gaskets

Ma ring Type Joint gaskets ndi mphete zosindikizira zachitsulo, zoyenera kugwiritsa ntchito kuthamanga kwambiri komanso kutentha kwambiri. Amagwiritsidwa ntchito nthawi zonse ku ma flange apadera, otsagana nawo omwe amatsimikizira kusindikiza kwabwino, kodalirika ndi kusankha kolondola kwa mbiri ndi zinthu.

Ma gaskets amtundu wa mphete amapangidwa kuti asindikize ndi "kulumikizana koyamba" kapena kuchitapo kanthu pakati pa mating flange ndi gasket. Pogwiritsa ntchito kukakamiza pa mawonekedwe a chisindikizo kupyolera mu mphamvu ya bawuti, chitsulo "chofewa" cha gasket chimalowa mumtundu wa microfine wa zinthu zolimba za flange, ndikupanga chisindikizo cholimba kwambiri komanso chothandiza.

Mtundu wogwiritsidwa ntchito kwambiri ndi kalembedweRmphete yomwe imapangidwa motsatira ASME B16.20 yogwiritsidwa ntchito ndi ASME B16.5 flanges, kalasi 150 mpaka 2500. Malumikizidwe amtundu wa mphete 'R' amapangidwa mozungulira ndi octagonal.

TheOctagonalmphete imakhala yosindikiza kwambiri kuposa oval ndipo ingakhale gasket yomwe ingakonde. Komabe, gawo lozungulira lokhalo lingagwiritsidwe ntchito mumtundu wakale wozungulira pansi poyambira. Mapangidwe atsopano apansi apansi amavomereza gawo lozungulira kapena la octagonal.

Zolumikizira zamtundu wa R ring zidapangidwa kuti zisindikize kupanikizika mpaka 6,250 psi molingana ndi ASME B16.5 kukakamiza komanso mpaka 5,000 psi.

R OVAL

R OCTAGONAL

RX

BX

TheRXMtundu ndi woyenera kupanikizika mpaka 700 bar. RTJ iyi imatha kudzisindikiza yokha. Malo osindikizira akunja amapanga kukhudzana koyamba ndi ma flanges. Kuthamanga kwapamwamba kwadongosolo kumapangitsa kuti pakhale kuthamanga kwapamwamba. Mtundu wa RX umasinthasintha ndi mitundu ya R-model.

TheBXmtundu ndi woyenera kupanikizika kwambiri mpaka 1500 bar. Kulumikizana kwa mpheteyi sikusinthana ndi mitundu ina, ndipo kumangoyenera mtundu wa API BX flanges ndi grooves.

Malo osindikizira pamizere ya mphete ayenera kumaliza bwino mpaka 63 Microinche ndipo akhale opanda zitunda, zida kapena macheza olakwika. Amasindikiza ndi kulumikizana koyamba kapena kukwatiwa pamene mphamvu zokakamiza zikugwiritsidwa ntchito. Kuuma kwa mphete kuyenera kukhala kocheperako kuposa kuuma kwa ma flanges.

Kusankha zinthu

Gome ili m'munsiyi likuwonetsa zida zomwe zimagwiritsidwa ntchito kwambiri polumikizira mtundu wa mphete.

Tongue-and-Groove (T&G)

Nkhope za Lilime ndi Groove za flanges ziyenera kufananizidwa. Nkhope imodzi ya flange ili ndi mphete yokwezeka (Lilime) yomangidwira kumaso kwa flange pomwe nsonga zokwerera zimakhala ndi kukhumudwa kofananira (Groove) kumaso kwake.

Maonekedwe a lilime-ndi-groove amakhala okhazikika m'magulu akulu ndi ang'onoang'ono. Iwo amasiyana mwamuna ndi mkazi kuti diameters mkati mwa lilime-ndi-poyambira musati kupitirira mu flange m'munsi, motero kusunga gasket pa m'mimba mwake mkati ndi kunja. Izi zimapezeka kawirikawiri pazivundikiro za pampu ndi Maboneti a Vavu.

Kulumikizana kwa lilime-ndi-groove kulinso ndi ubwino chifukwa kumadzigwirizanitsa ndipo kumakhala ngati nkhokwe ya zomatira. Cholowa cha scarf chimasunga mzere wolozera kuti ugwirizane ndi cholumikizira ndipo sichifuna ntchito yayikulu yopangira makina.

Nkhope zonse za flange monga RTJ, TandG ndi FandM sizidzalumikizidwa palimodzi. Chifukwa cha izi ndikuti mawonekedwe olumikizana samagwirizana ndipo palibe gasket yomwe ili ndi mtundu umodzi mbali imodzi ndi mtundu wina mbali inayo.

Male-and-Female (M&F)

Ndi mtundu uwu, ma flanges ayeneranso kufananizidwa. Nkhope imodzi ya flange ili ndi malo omwe amapitilira nkhope ya flange (Male). Flange ina kapena mating flange ali ndi kukhumudwa kofananira (Wamkazi) wopangidwa ndi nkhope yake.

Nkhope yachikazi ndi 3/16-inch kuya, nkhope yamphongo ndi 1/4-inchi mmwamba, ndipo zonse zimakhala zosalala. Mbali yakunja ya nkhope ya mkazi imagwira ntchito kuti ipeze ndikusunga gasket. Mu mfundo 2 Mabaibulo zilipo; Ma Flange Aang'ono a M&F ndi Ma Flange Aakulu a M&F. Maonekedwe achimuna ndi aakazi omwe amakumana nawo nthawi zambiri amapezeka pa chipolopolo cha Heat Exchanger kupita ku njira ndi kuphimba ma flanges.

Ubwino ndi Kuipa kwa nkhope za T&G ndi M&F flange

Ubwino wake
Kusindikiza kwabwinoko, malo eni eni komanso kuphatikizika kwenikweni kwa zinthu zosindikizira, kugwiritsa ntchito zina, kusindikiza koyenera komanso kusindikiza kwa spezialized (O-rings).

Zoipa
Kupezeka kwa malonda ndi mtengo. Nkhope yowoneka bwino ndiyofala kwambiri komanso yokonzeka kupezeka pokhudzana ndi ma Valves, ma flanges ndi zinthu zosindikizira. Chinthu chinanso chovuta ndi chakuti malamulo ena okhwima ayenera kugwiritsidwa ntchito popanga mapaipi. Kodi mumayitanitsa ma Valves kuti akhale achikazi kumapeto kwa mbali zonse ziwiri, kapena mbali imodzi mwina, momwemo mumalozera malekezero onse aamuna poyenda, kapena chiyani. Zomwezo zimagwiranso ntchito pamalumikizidwe aliwonse olumikizana / chotengera chilichonse.