Taw qhia rau Titanium Flanges

Flange, qhia los ntawm ib tus neeg Askiv npe hu ua Erlcharlt hauv xyoo 1809, kuj tau npaj cov txheej txheem casting rau flanges. Txawm li cas los xij, rau qee lub sijhawm tom qab ntawd, flanges tsis tau siv dav kom txog rau thaum xyoo pua 20th thaum lawv tau siv dav hauv ntau yam khoom siv tshuab thiab cov kav dej sib txuas.

Flange, tseem hu ua flange disk lossis flange protrusion, feem ntau yog hais txog lub cev hlau nrog cov duab zoo li disc nrog ob peb qhov ruaj khov nyob ib ncig ntawm nws thaj tsam rau kev txuas mus rau lwm yam khoom. Flanges yog dav siv nyob rau hauv ntau yam khoom siv kho tshuab thiab cov kav dej sib txuas. Lawv ua cov khoom siv rau kev sib txuas ntawm cov kav dej thiab cov kav dej, siv rau kev sib txuas ntawm qhov kawg ntawm cov kav dej, thiab tseem siv rau hauv cov khoom siv inlets thiab qhov hluav taws xob los pab txhawb kev sib txuas ntawm ob lub cuab yeej, xws li gearbox flanges.

Kev faib tawm ntawm Flanges:

1. Raws li Chemical (HG) Industry Standard:

Ntegral Flange (IF)

Threaded Flange (Th)

Phaj Flat Vuam Flange (PL)

Weld caj dab flange (WN)

Slip-on Flange (SO)

Qhov (socket) Vuam Flange (SW)

Loose Flange nrog Vuam Nplhaib Joint (PJ / SE)

Loose Phaj Flat Vuam Flange (PJ / RJ)

Lined Flange Npog (BL(S))

Flange npog (BL)

2. Raws li Petrochemical (SH) Kev Lag Luam Tus Qauv:

Xov Flange (PT)

Weld caj dab flange (WN)

Slip-on Flange (SO)

Qhov (socket) Vuam Flange (SW)

Loose Flange (LJ)

Flange npog (tsis paub meej)

Flange Standards:

Flanges, raws li cov khoom sib txuas, tau siv dav thoob ntiaj teb, xav tau cov qauv sib koom ua ke. Piv txwv li, tam sim no muaj ob lub ntsiab txheej txheem rau cov yeeb nkab flanges: European yeeb nkab flange system sawv cev los ntawm lub teb chaws Yelemees DIN thiab American yeeb nkab flange system sawv cev los ntawm American National Standards Institute (ANSI). Cov hauv qab no yog cov lus qhia luv luv rau cov yeeb nkab flanges los ntawm ntau lub teb chaws:

1. European Flange System:

European Flange System: German DIN

Nominal Siab: {{0}}.1, 0.25, 0.6, 1.0, 1.6, 2.5, 4.0 , 6.4, 10.0, 16.0, 25.

Nominal Dia: 15-600mm;

Flange Structure Forms: Phaj Flat Vuam, Loose Phaj Flat Vuam, Rolled Loose Phaj, Weld Neck Rolled Loose Phaj, Weld Neck Loose Phaj, Vuam, Neck Threaded Txuas, Integral, thiab Flange Npog;

Flange Sealing Surfaces: Flat, concave, convex, tus nplaig thiab zawj, Rubber Ring Connection, Lens, thiab Diaphragm Vuam.

2. American Flange System:

American Flange System: American ANSI B16.5 "Steel Pipe Flanges thiab Flanged Fittings"

Nominal Siab: 150 psi (2.0 MPa), 300 psi (5.0 MPa), 40 0 psi (6.8 MPa), 600 psi (10.0 MPa), 900 psi (15.0 MPa), 1500 psi (25.0 MPa), 2500 psi (42.0 MPa);

Nominal Dia: 6-4000mm;

Flange Structure Forms: Butt Welding, Socket Vuam, Threaded Connection, Loose, Vuam, thiab Flange Npog;

Flange Sealing Surfaces: concave, convex, tus nplaig thiab zawj, hlau nplhaib sib txuas.

Flange Assembly

1. Ua ntej sib dhos lub flange, nws yog ib qho tseem ceeb los ntxuav lub flange nto, tshwj xeeb tshaj yog cov sealing nto.

2. Thaum sib dhos tiaj tiaj vuam flanges, cov yeeb nkab kawg yuav tsum tau muab tso rau hauv lub flange nrog lub thickness ntawm 2 mus rau 3 npaug ntawm lub puab txoj kab uas hla ntawm flange, ces qhov chaw-welded mus rau lub raj. Rau cov kav dej kab rov tav, lub flange yuav tsum yog qhov chaw-welded los ntawm saum toj no, tom qab ntawd kuaj xyuas thiab kho nws txoj haujlwm nrog 90-degree kaum tus kav los ntawm cov lus qhia sib txawv kom ntseeg tau tias lub sealing nto yog perpendicular mus rau nruab nrab ntawm cov kav dej, thiab qhov thib ob qhov chaw weld yog lawm.

3. Tshawb xyuas thiab kho qhov flange txoj hauj lwm los ntawm sab laug thiab sab xis cov lus qhia nrog ib tug 90-degree tus pas ntsuas, qhov chaw weld lub thib peb thiab plaub ntsiab lus tom qab dhau los, ua kom tiav qhov chaw vuam thiab kho cov flange.

4. Hais txog kev sib dhos ntawm flange discs, lub qhov ntsia liaj qhov rooj rau kev txhim kho lub flange yuav tsum ua raws li qhov sib thooj ntawm lub qhov flange ruaj khov, thiab ua tib zoo sib xws rau cov flange ruaj khov. Qhov sib txawv yuav tsum tsis pub tsawg tshaj 1.5% ntawm cov kab uas hla ntawm txhua txhiab flanges, thiab tsis ntau tshaj 2 hli.

5. Thaum xaiv qhov sib txuam flanges rau cov khoom siv lossis cov khoom siv lub valve, yuav tsum tau saib xyuas seb lub flanges ntawm cov khoom qub lossis cov khoom siv valve puas zoo ib yam nrog cov flange kev sib txuas qhov ntau thiab tsawg siv hauv cov kav dej.

Common Gasket Materials rau Flanges

Cov ntawv roj hmab thiab cov ntawv roj hmab asbestos feem ntau yog siv cov ntaub ntawv gasket rau flanges.

1. Daim ntawv muaj roj hmab

Cov nplooj ntawv roj hmab muaj, tseem hu ua cov ntawv muaj vulcanized roj hmab los yog cov ntawv roj hmab.

2. Rubberized Asbestos Sheet

Rubberized asbestos nplooj ntawv, feem ntau yog siv los ua gaskets rau sealing khoom thiab yeeb nkab flanges. Media tuaj yeem suav nrog dej, chav dej, huab cua, ntau yam gases, ammonia tov, alkali tov, thiab roj, thiab lwm yam.

Flange kev twb kev txuas

1. Kev sib txuas ntawm flange yuav tsum tau khaws cia rau tib lub axis, thiab qhov sib txawv ntawm lub qhov ntsia hlau qhov nruab nrab yuav tsum tsis pub tshaj 5% ntawm qhov aperture, thiab cov bolts yuav tsum dhau mus dawb. Kev sib txuas bolts ntawm flange yuav tsum muaj tib yam kev qhia tshwj xeeb, kev taw qhia kev teeb tsa yuav tsum zoo ib yam, thiab cov bolts yuav tsum tau sib npaug thiab sib npaug.

2. Txawv thickness inclined washers yuav tsum tsis txhob siv los them rau qhov tsis sib xws ntawm flange. Ob chav ntxhua khaub ncaws yuav tsum tsis txhob siv. Thaum cov tshuab ntxhua khaub ncaws loj yuav tsum tau muab sib cais, lawv yuav tsum tsis txhob docked nrog cov chaw nres nkoj tiaj tus, tab sis yuav tsum yog nyob rau hauv daim ntawv ntawm oblique lap lossis labyrinth.

3. Rau qhov yooj yim ntawm kev txhim kho thiab disassembling flanges, qhov kev ncua deb ntawm fastening bolts thiab flange ntsej muag yuav tsum tsis txhob tsawg tshaj li 200 hli.

4. Thaum zawm bolts, nws yuav tsum tau symmetrical thiab sib tshuam los xyuas kom meej tias cov gaskets yog uniformly stressed.

5. Bolts thiab ceev yuav tsum tau coated nrog molybdenum disulfide, graphite roj, los yog graphite hmoov rau tom qab tshem tawm: stainless hlau, alloy steel bolts thiab ceev; cov kav dej tsim los rau qhov kub ntawm lossis qis dua 100 degree lossis 0 degree ; cov chaw sab nraum zoov; atmospheric corrosion los yog corrosive media.

6. Hlau ntxhua khaub ncaws xws li tooj liab, txhuas, thiab cov hlau mos yuav tsum tau muab tshem tawm ua ntej kev teeb tsa.

7. Kev faus ncaj qha ntawm flange txuas tsis raug tso cai. Kev sib txuas ntawm flange rau cov kav dej faus yuav tsum muaj cov dej tshuaj ntsuam xyuas. Yog tias tsim nyog faus, kev tiv thaiv corrosion yuav tsum tau ua.