Khokahano e nang le liphaephe ke 'mele oa li-valve o nang le li-flange lintlheng tse peli, tse tsamaellanang le liphaephe tse phaepheng, ka ho koala flange e kentsoeng pompong. Khokahano ea Flanged ke mofuta o sebelisoang haholo oa khokahano ea valve. Li-flange li na le li-convex (RF), sefofane (FF), convex le concave (MF) le lintlha tse ling. Ho ea ka sebopeho sa bokaholimo bo kopaneng, bo ka aroloa ka mefuta e latelang:
(1) mofuta o boreleli: bakeng sa belofo e nang le khatello e tlase. Ho sebetsa ho bonolo haholoanyane;
(2) mofuta oa concave le convex: khatello e phahameng ea ho sebetsa, e ka sebelisa gasket e thata;
(3) mofuta oa tenon groove: gasket e nang le deformation e kholo ea polasetiki e ka sebelisoa haholo mecheng ea litaba e senyang, 'me phello ea ho tiisa e betere;
(4) mofuta oa trapezoidal groove: lesale la tšepe la oval e le gasket, le sebelisoang ka khatello ea ho sebetsa ea valve ≥64 kg/cm2, kapa belofo e phahameng ea mocheso;
(5) Mofuta oa lense: gasket e ka sebopeho sa lense, e entsoeng ka tšepe. E sebelisoa bakeng sa li-valve tse phahameng tse nang le khatello ea ho sebetsa ≥ 100kg / cm2, kapa li-valve tse phahameng tsa mocheso;
(6) Mofuta oa O-ring: ena ke mofuta o mocha oa khokahanyo ea flange, e teng ka ho hlaha ha mefuta eohle ea rabara ea O-ring, 'me e ntlafalitse, e ka tšeptjoa haholoanyane ka phello ea ho tiisa ho feta gasket e tloaelehileng e bataletseng.
(1) Khokahano ea li-butt-welding: lipheletso tse peli tsa 'mele oa li-valve li sebetsoa hore li be groove ea butt-welding ho latela litlhoko tsa tjheseletsa ea butt, e tsamaellanang le pompo ea tjheseletsa ea liphaephe, 'me e behiloe pompong ka ho cheselletsa.
(2) khokahano ea socket welding: lipheletso tse peli tsa 'mele oa valve li sebetsoa ho latela litlhoko tsa socket welding le ho hokahana le pipeline ka socket welding.
Khokahano ea likhoele ke mokhoa o bonolo oa ho hokahanya 'me hangata o sebelisoa bakeng sa li-valve tse nyane. 'Mele oa valve o sebetsoa ho latela khoele e tloaelehileng,' me ho na le mefuta e 'meli ea khoele e ka hare le khoele e ka ntle. E tsamaellanang le khoele e phaepheng. Khokahano ea likhoele e arotsoe ka maemo a mabeli:
(1) ho tiisa ka ho toba: likhoele tse ka hare le tse ka ntle li phetha karolo ea ho tiisa ka ho toba. E le ho etsa bonnete ba hore lenonyeletso ha le lutle, hangata ka oli ea loto, hemp le PTFE lebanta le tlatsang thepa e tala; Har'a bona, lebanta la PTFE le sebelisoa haholo. Boitsebiso bona bo na le khanyetso e ntle ea kutu, phello e babatsehang ea ho tiisa, ho bonolo ho e sebelisa le ho e boloka, ha e qhaqhoa, e ka tlosoa ka ho feletseng, hobane ke lera la filimi e se nang viscous, e molemo haholo ho feta oli e etellang pele, hemp.
(2) ho tiisa ka tsela e sa tobang: matla a screw tightening a fetisetsoa ho gasket pakeng tsa lifofane tse peli, e le hore gasket e phetha karolo ea ho tiisa.
Ho na le mefuta e mehlano ea likhoele tse sebelisoang hangata:
(1) Metric thread e tloaelehileng;
(2) Khoele e tloaelehileng ea lisenthimithara;
(3) Khoele e tiisang likhoele;
(4) khoele ea phala e tiisang e sa kenngoeng ka likhoele;
(5) likhoele tse tloaelehileng tsa liphaephe tsa Amerika.
Kenyelletso e akaretsang ke e latelang:
① Tekanyetso ea machaba ea ISO228/1, DIN259, bakeng sa khoele e tšoanang ea kahare le kantle, khoutu ea G kapa PF(BSP.F);
② Tekanyetso ea Sejeremane ISO7/1, DIN2999, BS21, bakeng sa khoele ea leino la ka ntle, khoele e tšoanang ea leino la ka hare, khoutu ea BSP.P kapa RP/PS;
③ maemo a Borithane a ISO7/1, BS21, khoele ea ka hare le kantle, khoutu PT kapa BSP.TR kapa RC;
④ American standard ANSI B21, ka hare le ka ntle taper thread, khoutu NPT G(PF), RP(PS), RC (PT) meno Angle ke 55 °, NPT meno Angle ke 60 ° BSP.F, BSP.P le BSP. TR ka kakaretso e bitsoa meno a BSP.
Ho na le mefuta e mehlano ea likhoele tse tloaelehileng tsa liphaephe United States: NPT bakeng sa tšebeliso e akaretsang, NPSC bakeng sa likhoele tse otlolohileng tsa liphaephe tsa ka hare bakeng sa li-fittings, NPTR bakeng sa likhokahano tsa lithupa tse tataisang, NPSM bakeng sa likhoele tse otlolohileng tsa liphaephe bakeng sa likhokahano tsa mochini (likhokahanyo tse sa lefelloeng tsa mochini), le NPSL. bakeng sa likhokahano tse hlephileng tsa mochini tse notlelang linate. Ke ea khoele e tiisitsoeng ea lipeipi tse sa koaeloang (N: Tekanyetso ea naha ea Amerika; P: pipe; T: Taper)
4 .Khokelo ea Taper
Khokahano le molao-motheo oa ho tiisa letsoho ke hore ha nate e tiisitsoe, letsoho le tlas'a khatello, e le hore moeli o kene leboteng le ka ntle la phala, 'me lesela le ka ntle la letsoho le koetsoe ka thata ka khoune. 'mele o kopantsoeng tlas'a khatello, kahoo o ka thibela ho lutla ka botšepehi. Joalo kali-valve tsa lisebelisoa.Melemo ea mofuta ona oa khokahano ke:
(1) Molumo o monyenyane, boima bo bobebe, sebopeho se bonolo, ho qhaqhoa habonolo le ho kopanya;
(2) relay e matla, mefuta e mengata ea tšebeliso, e ka mamella khatello e phahameng (1000 kg/square centimeter), mocheso o phahameng (650 ℃) le ho thothomela;
(3) e ka khetha lisebelisoa tse fapaneng, tse loketseng ho thibela kutu;
(4) ho nepahala ha mochine ha ho phahameng;
(5) ho bonolo ho kenya sebakeng se phahameng.
5. Khokahano ea clamp
Ke mokhoa o potlakileng oa ho hokahanya o hlokang li-bolts tse peli feela 'me o loketse li-valve tse tlaase tse atisang ho tlosoa.
Nako ea poso: Feb-22-2022