Flange hom

Flanges tuaj yeem siv ua ke nrog gaskets thiab bolts hauv cov kav dej, thiab tuaj yeem siv rau kev sib txuas ntawm cov yeeb nkab kawg lossis ntawm ob lub cuab yeej. flanges yog dav siv nyob rau hauv cov khoom siv thiab cov kav dej hauv kev lag luam tshuaj, roj av, mechanical, municipal, thiab water conservancy industries.
Hais txog lub ntsiab lus ntawm flanges, tus sau qhov kev tshawb nrhiav tsis tau tiav (ISO 7005-1: 2011 yog ua lus Askiv tag nrho). Baidu Baike qhov kev piav qhia ntawm Fran yog:
Lub flange, tseem hu ua flange lossis flange. Lub flange yog ib qho khoom siv uas txuas cov ncej thiab siv rau kev sib txuas cov yeeb nkab kawg; Kuj tseem muaj txiaj ntsig yog flanges ntawm qhov nkag thiab qhov hluav taws xob ntawm cov khoom siv, siv rau kev sib txuas ob lub cuab yeej, xws li gearbox flanges.
Lub ntsiab txhais ntawm flange cov ntsiab lus nyob rau hauv tam sim no Petrochemical Pipeline Engineering Terminology (SH/T 3051-2004) yog raws li nram no:
2.4.1 Flange, ib qho kev tivthaiv nrog lub qhov ntsia hlau siv los txuas cov kav dej, khoom siv, thiab lwm yam.
Pib los ntawm flange sealing nto waterline, qhov teeb meem no tau tham txog lub tiaj vuam thiab taub qab vuam (txoj kev sib txuas), flange sealing nto, thiab flange gasket ntawm flanges. Lub hom phiaj ntawm qhov teeb meem no yog los qhia cov hom ntawm lub teb chaws tus qauv flanges.

Daim duab 1 flange (los ntawm network)
Raws li pom hauv daim duab 1, peb tuaj yeem pom cov cim ntawm lub flange, xws li ANSI B16.5 2 "WN RF 150LB 304, thiab lwm yam. Nws tuaj yeem xaus lus tias qhov no yog Asmeskas tus qauv flange nrog txoj kab uas hla ntawm 2. ", lub pob tw welded flange, tsa lub ntsej muag sealing nto, 150LB siab ntsuas, thiab ua los ntawm 304 stainless hlau. Yog li ntawd, tus txheej txheem txheej txheem tseem ceeb heev.
Tam sim no, cov qauv rau cov yeeb nkab flanges hauv Suav teb suav nrog: National Standard GB, Ministry of Chemical Industry Standard HG, Ministry of Machinery Standard JB, thiab Petrochemical Industry Standard SH. Cov txheej txheem zoo tshaj plaws rau cov flange saum toj no yog cov txheej txheem kev lag luam tshuaj, uas tuaj yeem ua tiav kev xaiv kaw thiab tsim cov flanges hauv nws tus kheej cov txheej txheem, tsis tas yuav xa mus rau lwm cov qauv. Tsis tas li ntawd, muaj ib tshooj tshwj xeeb tham txog kev xaiv ntawm flange gaskets thiab fasteners, ua kom yooj yim rau cov neeg tsim qauv xaiv.
1. Cov cuab yeej cuab tam ntawm lub teb chaws tus qauv flange system (GB yeeb nkab flange)
Xyoo 1988, Tuam Tshoj tau pib tsim cov qauv ntawm lub teb chaws tus qauv yeeb nkab flange system, los ntawm GB 9112-88 mus rau GB 9123-88, tshem tawm qhov qub "Dimensions rau kev sib txuas ntawm General Purpose Pipe flanges" (GB 2555-81} ) thiab "Shape and Dimensions of Sealing Surface for General Purpose Pipe flanges" (GB 2556-81), thiab txhua tus qauv yog tsim los ntawm hom flange. 88 tus qauv yog qhov tseem ceeb heev rau kev sib piv ntawm cov khoom siv ntshuam thiab xa tawm thaum lub sijhawm ntawd.
Hauv xyoo 2000 thiab 2010, cov qauv saum toj no tau hloov kho thiab hloov kho kom dhau los ua cov qauv pom zoo.
Xyoo 2019, Tuam Tshoj yuav koom ua ke 13 tus qauv, suav nrog GB / T 9112 ~ 9124-2010, raws li ntau hom flange thiab flange nominal siab series, ua ob pawg: European system (PN series) thiab American system (Class series. ), uas yog:
Hlau yeeb nkab flanges - Ntu 1: PN series (GB 9124.{3}})
Hlau yeeb nkab flanges - Ntu 2: Chav kawm series (GB 9124.2-2019)
Cov kev cai sau ntawv ntawm qhov tseeb version ntawm flange lub teb chaws tus qauv yog zoo ib yam li cov qauv kev lag luam chemical thiab tuaj yeem hloov pauv cov qauv kev lag luam tshuaj.
2. Flange hom (GB yeeb nkab flange)
Nyob rau hauv kuv tus kheej lub tswv yim, flanges raug cais raws li lawv cov yam ntxwv hom thiab txoj kev sib txuas nrog cov yeeb nkab (lub taub qab vuam, tiaj vuam, qhov (socket) vuam, xov). Piv txwv li, threaded flanges nrog caj dab: lawv hom qauv yog threaded nrog caj dab thiab txoj kev sib txuas yog threaded, yog li lawv hu ua threaded flanges nrog caj dab. Txhua hom yog txawv raws li qhov sib txawv sealing nto. Noj cov PN series ua piv txwv, muaj tag nrho ntawm 12 hom ntawm lub teb chaws tus qauv flanges, txhua tus yog raws li nram no (kom yooj yim ntawm kev sib txawv, tsab xov xwm no muab faib ua 6 pawg raws li kev sib txuas sib txawv):
2.1 Kev sib xyaw ua ke
1. Integral flange (code IF)
Lub flange tiav yog flange uas txuas nrog cov khoom siv, xws li flange ntawm lub valve. Qhov flange no yog kev sib txuas nrog lub valve thiab tsis txuas nrog vuam, raws li qhia hauv daim duab 2. Integral flanges feem ntau yog siv hauv kev tsim khoom thiab tsis tshua muaj siv hauv kev tsim cov raj xa dej.

Daim duab 2 Integral flange (IF)
Lub sealing nto muaj xws li: tiaj tus (FF), tsa saum npoo (RF), concave convex nto (MF), tenon zawj nto (TG), O-ring nto (OSG), thiab lub nplhaib sib txuas nto (RJ).
2.2 Screw txuas
2. Neck threaded flange (Th), raws li qhia hauv daim duab 3.

Daim duab 3 Neck threaded flange (Th)
Lub sealing nto muaj xws li: tiaj (FF) thiab tsa (RF).
2.3 Qhov (socket) vuam txuas
3. Neck qhov (socket) vuam flange (SW), raws li qhia hauv daim duab 4.

Daim duab 4 Neck qhov (socket) vuam flange (SW)
Lub sealing nto muaj xws li: tiaj tus (FF), tsa saum npoo (RF), concave convex nto (MF), tenon zawj nto (TG), O-ring nto (OSG), thiab lub nplhaib sib txuas nto (RJ).
2.4 Butt vuam kev twb kev txuas
4. Vuam flange (WN), raws li qhia hauv daim duab 5.

Daim duab 5 Vuam flange (WN)
Lub sealing nto muaj xws li: tiaj tus (FF), tsa saum npoo (RF), concave convex nto (MF), tenon zawj nto (TG), O-ring nto (OSG), thiab lub nplhaib sib txuas nto (RJ).
5. A-hom pob tw welded phaj xoob lub tes tsho flange (PL/WA), raws li qhia hauv daim duab 6.

Daim duab 6 A-hom pob tw welded phaj xoob lub tes tsho flange (PL / WA)
Lub ntsej muag sealing muaj xws li: tsa lub ntsej muag (RF), concave convex face (MF), tenon zawj ntsej muag (TG), thiab O-ring ntsej muag (OSG).
6. B-hom pob tw welded phaj xoob lub tes tsho flange (PL/WB), raws li qhia hauv daim duab 7.

Figure 7 B-type butt welded phaj xoob tes tsho flange (PL/WB)
Lub sealing nto muaj ib tug tsa nto (RF).
7. Tig lub phaj xoob flange (PL/PA) ntawm cov yeeb nkab kawg, raws li pom hauv daim duab 8.

Daim duab 8: Cov yeeb nkab kawg flipping phaj xoob lub tes tsho flange (PL / PA)
8. Flared luv seem phaj xoob lub tes tsho flange (PL/PB), raws li qhia hauv daim duab 9.

Daim duab 9 Flared Short Section Phaj Loose Sleeve Flange (PL/PB)
2.5 Flat vuam txuas
9. Flat vuam flange nrog caj dab (SO), raws li qhia hauv daim duab 10.

Daim duab 10 Necked tiaj vuam flange (SO)
Lub sealing nto muaj xws li: tiaj tus (FF), tsa saum npoo (RF), concave convex nto (MF), tenon zawj nto (TG), thiab O-ring nto (OSG).
10. Phaj hom ca vuam flange (PL), raws li qhia hauv daim duab 11.

Daim duab 11 Phaj hom ca vuam flange (PL)
Lub sealing nto muaj xws li: tiaj (FF) thiab tsa (RF).
11. Flat welded nplhaib phaj xoob lub tes tsho flange (PL/C), raws li qhia hauv daim duab 12.

Daim duab 12 Flat welded nplhaib phaj xoob lub tes tsho flange (PL / C)
Lub ntsej muag sealing muaj xws li: tsa lub ntsej muag (RF), concave convex face (MF), tenon zawj ntsej muag (TG), thiab O-ring ntsej muag (OSG).
2.6 Plug
12. Flange npog (BL), raws li qhia hauv daim duab 13.

Daim duab 12 Flange Cover (BL)
Lub sealing nto muaj xws li: tiaj tus (FF), tsa saum npoo (RF), concave convex nto (MF), tenon zawj nto (TG), O-ring nto (OSG), thiab lub nplhaib sib txuas nto (RJ).
3. Kev sib txuas lus ntawm kev faib tawm saum toj no thiab GB9124.1
Qhov kev txiav txim ntawm cov hom saum toj no suav nrog kev faib tawm ntawm GB 9124, raws li pom hauv daim duab 13.

Daim duab 13 Kev sib tham ntawm qhov kev faib tawm ntawm flanges hauv kab lus no thiab GB 9124
4. Kev kos npe ntawm flanges
Tsuas yog cov flanges ib leeg, txhua lub flange yuav tsum tau cim tas mus li nrog cov cim meej thiab pom ntawm sab nrauv cylindrical ntawm flange siv txoj hauv kev xws li steel stamping thiab laser npav, raws li qhia hauv daim duab 1.
Cov ntsiab lus ntawm lub logo suav nrog: chaw tsim khoom, tus lej tshwj xeeb (tsis muaj tus lej xyoo), hom code, nominal loj thiab siab, khoom siv, thiab lwm yam.
Cov kev cai kos npe rau ntawm tus tsim kos duab thiab flanges yog raws li nram no:
Nominal loj, siab, hom, sealing nto, piping, khoom, thiab tus qauv tooj, xws li:
DN 400-PN25 WN RF Ⅱ Q235A GB/T 9124.1
DN400: nominal loj 400mm;
PN25: nominal siab 2.5Mpa
WN: taub qab welded flange
RF: tsa lub ntsej muag sealing nto
II: Flange kev sib txuas ntawm cov kav dej me me sab nraud
Q235A: Cov khoom siv flange yog Q235A
GB / T 9124.1: Tus qauv ua tiav (tsis muaj xyoo code)