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Flange ke eng?

Flange ke eng?

Flanges Kakaretso

Flange ke mokhoa oa ho hokahanya liphaephe, li-valve, lipompo le lisebelisoa tse ling ho theha tsamaiso ea liphaephe. E boetse e fana ka phihlello e bonolo bakeng sa ho hloekisa, ho hlahloba kapa ho fetoloa. Hangata li-flange li entsoe ka li-welded kapa li koaheloa. Manonyeletso a mahlakore a mabeli a entsoe ka ho kopanya li-flange tse peli tse nang le gasket pakeng tsa tsona ho fana ka tiiso.

Mefuta ea Flanges

Mefuta ea flange e sebelisoang haholo indastering ea Petro le ea lik'hemik'hale ke:

  • Welding Neck Flange
  • Slip On Flange
  • Socket Weld Flange
  • Lap Joint Flange
  • Flange e khabisitsoeng
  • Sefofu Flange

Mefuta ea flange e sebelisoang haholo indastering ea Petro le ea lik'hemik'haleMefuta eohle ntle le Lap Joint flange e fanoa ka sefahleho se phahamisitsoeng.

Li-Flanges tse khethehileng

Ntle le li-flange tse tloaelehileng tse sebelisoang haholo, ho ntse ho na le li-flange tse khethehileng tse kang:

  • Orifice Flanges
  • Li-flange tse telele tsa Welding Neck
  • Weldoflange / Nipoflange
  • Expander Flange
  • Ho fokotsa Flange

Li-flange tse khethehileng

Lisebelisoa bakeng sa Flanges

Liphaephe tsa liphaephe li etsoa ka lisebelisoa tsohle tse fapaneng tse kang tšepe e sa hloekang, tšepe e entsoeng ka tšepe, aluminium, koporo, boronse, polasetiki joalo-joalo empa thepa e sebelisoang ka ho fetisisa ke tšepe ea carbon e entsoeng ka tšepe 'me e na le bokaholimo ba mochini.

Ho phaella moo, li-flanges, tse kang li-fittings le liphaephe, ka merero e khethehileng ka linako tse ling ka hare li na le lisebelisoa tsa boleng bo fapaneng ka ho feletseng joaloka li-flanges ka botsona, e leng "li-lined flanges".

Thepa ea flange, ha e le hantle e behiloe nakong ea khetho ea phala, hangata, flange ke ea thepa e tšoanang le pipe.

Li-flange tsohle, tseo ho buisanoeng ka tsona webosaeteng ena li oela tlas'a maemo a ASME en ASTM, ntle le ha ho boletsoe ka tsela e 'ngoe. ASME B16.5 e hlalosa litekanyo, mamello ea litekanyo, joalo-joalo, le ASTM ka litšobotsi tse fapaneng tsa thepa.

Litekanyo tsa Flanges

Flange ka 'ngoe ASME B16.5 e na le litekanyo tse ngata tse tloaelehileng. Haeba moqapi oa Japane kapa motlatsi oa mosebetsi Canada kapa pipefitter Australia a bua ka Welding Neck flange NPS 6, Class 150, Schedule 40 ASME B16.5, ebe e fetela ka holim'a flange eo setšoantšong se ka tlase se bontšitsoeng. .

Haeba flange e laetsoe, mofani oa thepa o batla ho tseba boleng ba thepa. Ka mohlala ASTM A105 ke flange ea tšepe e entsoeng ka carbon, ha A182 e le lesela le entsoeng ka tšepe e sa hloekang.

Kahoo, ka tatellano e nepahetseng ho mofani oa thepa, litekanyetso tse peli li tlameha ho hlalosoa:

Welding Neck flange NPS 6, Sehlopha sa 150, Kemiso ea 40, ASME B16.5 / ASTM A105

Welding Neck flange NPS 6, Sehlopha sa 150, S40

Flange e ka holimo e na le likoti tse 8 tsa bolt, le bevel ea welding ea likhato tse 37.5 (selika-likoe se khubelu). Litekanyo tsohle tse fanoeng li ka limilimithara. Sefahleho se phahamisitsoeng (RF) ha se hloke ho hlalosoa, hobane ASME B16.5, flange e 'ngoe le e' ngoe e fanoa ka mokhoa o tloaelehileng ka sefahleho se phahamisitsoeng. Ke feela moralo o fapaneng (Ring Type Joint (RTJ), Flat Face (FF) joalo-joalo), e lokelang ho hlalosoa.

Lihokelo tsa Bolted Flange

Khokahano ea bolted flange ke motsoako o rarahaneng oa lintlha tse ngata (Flange, Bolts, Gaskets, Ts'ebetso, Mocheso, Khatello, Medium). Lintho tsena tsohle tse fapaneng li hokahane 'me li itšetlehile ka tse ling ho fihlela sephetho se atlehileng.
Ho tšepahala ha lenonyeletso le nang le flanged ho itšetlehile haholo ka taolo e nang le bokhoni ea ts'ebetso ea ho etsa lenonyeletso.

Khokahano e tloaelehileng ea bolted flange

Khokahano e tloaelehileng ea flange

Ho qotsa bukeng ea John H. Bickford, “Selelekela sa Moralo le Boitšoaro ba Manonyeletso a Bolted”:
Hore matla ohle a bohlokoa a clamping a ts'oereng lenonyeletso - mme ntle le ao ho neng ho ke ke ha e-ba le lenonyeletso - ha a bōptjoe ke moqapi o motle oa motsoako, kapa ka likarolo tsa boleng bo phahameng. E entsoe ke setsebi sebakeng sa mosebetsi, a sebelisa lisebelisoa, mekhoa, le maemo a ts'ebetso ao re mo fileng 'ona… Ho feta moo: Moqapi oa ho qetela, oa bohlokoa oa matla ke mohloki, 'me nako ea pōpo ke nakong ea kopano. Kahoo ho bohlokoa haholo hore re utloisise ts'ebetso ena.

Indasteri e hlokometse mofuta oa bohlokoa oa ho kenya le ho kopanya ka lilemo tse 'maloa.
Europe, khatiso e bile ho netefatsa hore ho etsoa ka kopanelo ho etsoa ke litsebi tse koetlisitsoeng le tse netefalitsoeng mme sena se lebisitse ho phatlalatsoeng ha Tekanyetso ea Tekheniki ea Europe: TS EN 1591 Karolo ea 4 e nang le sehlooho se reng "Flanges le manonyeletso a bona. Melao ea moralo bakeng sa likhokahano tse chitja tse chitja tsa gasketed. Litšoaneleho tsa bokhoni ba basebetsi ho bokelleng mahokelo a liboutu a kentsoeng lisebelisoa ho latela Taelo ea Thepa ea Khatello (PED)”.

Tekanyetso e fana ka mokhoa oa koetliso le tlhahlobo ea litsebi tse amehang ho etseng le ho pshatleha ha manonyeletso a flange 'me e ka talingoa e tšoana le koetliso e hlokahalang bakeng sa li-welders tse amehang mosebetsing oa sekepe sa khatello. Phatlalatso ea eona e bonts'a bohlokoa bo behiloeng holim'a taolo e nang le bokhoni ea ts'ebetso ea kopanelo ho netefatsa ts'ebetso e sa luleng ho tsoa flange.

The gasket ke e 'ngoe ea mabaka a mangata a hore khokahano e kopantsoeng ea flange e ka lutla.
Le ha likarolo tsohle tse rarahaneng tse amanang le khokahano ea lenonyeletso la flange li sebetsa ka kutloano e phethahetseng, ntho e le 'ngoe ea bohlokoa ka ho fetisisa e lebisang katlehong kapa ho hloleheng ha khokahanyo ea flange e tla hlokomeloa mabapi le ho kenya le ho kopanya hantle ke motho ea kenyang gasket. . Haeba e entsoe ka nepo, kopano e tla lula e se na metsi bakeng sa nako e lebelletsoeng ea bophelo.

Maikutlo a sengoli…

Mahokelo a flanged khahlano le maqhama a Welded

Ha ho na litekanyetso tse hlalosang hore na likhokahano tsa flange li ka sebelisoa kapa che.

Fekthering e sa tsoa hahoa ke tloaelo ho fokotsa likhokahano tsa flange, hobane ho hlokahala weld e le 'ngoe feela ho hokahanya likotoana tse peli tsa phala. Sena se boloka litšenyehelo tsa li-flange tse peli, gasket, Stud Bolts, weld ea bobeli, litšenyehelo tsa NDT bakeng sa weld ea bobeli, joalo-joalo.

Litšitiso tse ling tsa likhokahano tsa flange:

  • Khokahano e 'ngoe le e' ngoe ea flange e ka lutla (batho ba bang ba bolela hore khokahano ea flange ha ho mohla e nang le bopaki ba ho lutla ka liperesente tse 100).
  • Sistimi ea liphaephe tse nang le flanged e hloka sebaka se sengata (nahana feela ka rack ea pipe).
  • Insulation ea mekhoa ea liphaephe tse nang le flanged e theko e boima haholo (li-caps tse khethehileng tsa flange).

Ehlile, likhokahano tsa flange li na le melemo e meholo; mehlala e meng:

  • Mohala o mocha o ka ba le liphaephe tse ngata tsa liphaephe 'me o ka etsoa ka har'a workshop.
  • Li-spools tsena tsa liphaephe li ka bokelloa semela ntle le tlhokahalo ea ho chesetsoa.
  • NDO (X-ray, Hydro test joalo-joalo) semeleng ha se hlokahale, hobane sena se entsoe ka workshop.
  • Ho phatloha le ho penta semela ha ho hlokahale, hobane esita le sena se entsoe ka workshop
    (litšenyo tsa pente feela nakong ea ho kenya li lokela ho lokisoa).

Joalo ka lintho tse ngata, ntho e 'ngoe le e' ngoe e na le melemo le mathata a eona.


Nako ea poso: May-30-2020