9 Melao ea ho tseba bakeng sa khatello ea Valve: Ho tsoa ho khetholla khetho ea setsebi

Phuptjane 16, 2025

Li-valve ke likarolo tsa mantlha tsa mantlha ka litsamaiso tsa taolo ea mokelikeli, 'me u utloisise ka nepo le ho khetha ka ho le letona Khatello ea Valve Tekanyetso ke ea bohlokoa ho netefatsa polokeho le botsitso ba sistimi eohle. Khetho e sa nepahalang e ka lebisa ho li-valve., Tšenyo, kapa le liketsahalo tse matla tsa polokeho. Tataiso ena e tla sebetsa e le mohloli o matla oa ho araba lipotso tsohle tsa bohlokoa ka khatello ea maikutlo.

Tafole ea likateng

Ke khatello ea bohlokoa?

Khatello ea Valve e bua ka khatello e phahameng e lumelletsoeng e ka emang ka mocheso o itseng. Mohopolo ona o utloisisoa ka tsela e 'meli:

Khatello ea lebitso (PN): Ena ke boleng ba bosholu bo sebelisitsoeng ho moralo, Ho etsa lihlahisoa, le ts'ebeliso, ho emela bokhoni ba khatello ea mathata. Hangata e khetholloa ka “PN” 'me ke letoto e tloaelehileng. Ha ho bolele hore khatello e tšoanang e sebetsang e ka bolokoa mohloling ona oa mocheso.
Khatello e sebetsang: Sena ke khatello ea 'nete ea mokelikeli e kenngoeng ka ts'ebeliso ea lefatše ea' nete ka mocheso o itseng oa ts'ebetso. Khatello ea ho sebetsa e tlameha ho lula e le tlase ho kapa e lekana le khatello e phahameng ea Valve e nang le mocheso o phahameng ka mocheso oo.

Valve ke litekanyetso life tsa khatello?

A Tekanyetso ea mathata ke tsamaiso e tloaelehileng ea khethollo e khethollang bokhoni ba khatello ea mathata ho latela litekanyetso tse ikhethang (joalo ka asme, Ho, Api).

Mehopolo le polelo ea polelo ea litekanyetso tse fapaneng tsa mathata

Khatello ea lebitso (PN): Lenane le tloaelehileng la Europe (Ho 1092-1), E thehiloe litsing, ke letoto la linomoro tse amanang le matla a ho mo fa matla.
Tekanyetso ea Sehlopha (LB): Sisteme ea Amerika e tloaelehileng (Asme B16.34, B16.5) ke letoto la litlelase ho ipapisitse le khatello e ka ema ka lithemparetjha tse fapaneng. Sena ke senotlolo sa ho utloisisa Moelelo oa mathata, Joalokaha e hokahane le mocheso. Mefuta eohle, ho tsoa ho Gate Valve Tekanyetso ea khatello ho a Tekanyetso ea Ball ea Ball, Latela sistimi ena.
Api khatello ea khatello: Setsi sa American Petroleum (Api) E theha litekanyetso tsa khatello bakeng sa indasteri ea oli le khase, joalo ka 2000, 3000, 5000, 10000 PSI in AI 6a, e hlalosang maemo a qotsitsoeng khatello ea maikutlo.

Liuniti tsa khatello ea maikutlo ke life??

Bar: Yuniti e tloaelehileng ea machabeng ea khatello ea Valve. 1 Bar ≈ 1 Sepakapaka.
Mpa (Megapascal): Yuniti ea mantlha ea khatello ka har'a li-valve tsa machabeng tsa likarolo (Mme). 1 MPA = 1,000,000 Pa.
PSI (Liponto ka lisekoere tsa lisekoere): Yuniti ea Imperial ea Imperial, tloaelehileng Amerika Leboea.
kgf / cm² (Kilogram-matla a lisentimitara): Setsi sa leholimo sa theknoloji.

Mokhoa oa ho khetholla matšoao a khatello ho 'mele oa vala?

Matšoao a ile a qheleloa ka teng kapa a hatelloa ka 'mele oa valve ke tsela e tobileng ho tseba ho tsebahatsa bokhoni ba eona ba khatello. Matšoao a tloaelehileng a kenyelletsa:

Tekanyetso ea PN: E.g., PN16, Pn25, PN40. Sena se bonts'a tekanyetso ea khatello ea maikutlo ea pherekano mekoallo mme ke ntho e hlakileng ea mantlha ho European (Ho) Sistimi e tloaelehileng.
Sehlopha (kapa tekanyetso ea pound): E.g., 150LB, Sehlopha 150, 300LB. Ena ke khethollo ea khatello ea maikutlo bakeng sa American (AME) Sistimi e tloaelehileng. Palo ha e tsamaisane le psi. Sehlopha 150 Valve ha e bolele hore e ka sebetsana feela 150 PSI; Boqapi ba eona bo ikhethileng bo tlameha ho khethoa ho tsoa ho chate e tsamaeang ea khatello ea maikutlo.
E boima / Cwp: E.g., 600 E boima kapa 1000 Cwp.
- E boima e emetse metsi, Oli, Khase.
- Cwp e emetse khatello e matla ea ho sebetsa.
- E boima / Cwp li fetotsoe haholo 'me li bontša khatello e phahameng ea valve e ka sebetsana le mocheso oa hae (hangata -20 ° F ho 100 ° F kapa -29 ° C ho 38 ° C ho 38 ° C ho 38 ° C ho 38 ° C ho 38 ° C ho 38 ° C ho 38 ° C ho 38 ° C ho 38 ° C ho 38 ° C ho 38 ° C) Bakeng sa metsi, Oli, le mecha ea litaba ea khase. Ka mohlala, a Brass bolo ea val valama ea “800 E boima” ho bolela hore e ka sebetsana le eona ka mokhoa o sireletsehileng 800 PSI tlasa sefuba, Maemo a sa tsitsang.

Ho hatella khatello ea sehlopha– Asme B16.34-2004

Mokhoa oa ho bala pakeng tsa likarolo tse fapaneng tsa khatello?

Ho sebetsana le ho soma ha yuniti ho bohlokoa bakeng sa lipalo tse nepahetseng. Mona ke liphetoho tse tloaelehileng tsa khanyetso:

1 MPA ≈ 145 PSI
1 Bar ≈ 14.5 PSI
1 Bar = 0.1 Mpa
1 kgf / cm² ≈ 0.98 Bar ≈ 14.2 PSI

Mokhoa oa ho Fetolela lipakeng tsa litekanyetso tsa khatello tsa mathata a li-valve?

Ena ke mohopolo o nyarosang mme o sa utloisiseheng: Ha ho na mokhoa oa lipalo o tobileng oa lipalo ho fetolela lipakeng tsa litekanyetso tsa pn le litekanyetso tsa sehlopha!

Sena ke hobane li thehiloe lits'ebetsong tse fapaneng tse fapaneng, Boitsebiso ba Boithabiso, le lihlopha tsa lintho tse bonahalang. Leha ho le joalo, Bakeng sa menyetla ea lits'ebetso tsa boenjiniere, e latelang Chate ea mangolo e hakanyetsoang e ka hlalosoa. Chate ena ke ea ho bua ka eona feela; Khetho e nepahetseng e tlameha ho ipapisitse le maemo a ikhethang.

Tafole 1: Sehlopha sa khatello ea mathata vs. Books Reference Reference

Tekanyetso ea Sehlopha	PN (Khatello ea lebitso)
Sehlopha 150	PN 20
Sehlopha 300	PN 50
Sehlopha 400	PN 68
Sehlopha 600	PN 110
Sehlopha 900	PN 150
Sehlopha 1500	PN 260
Sehlopha 2500	PN 420

Kamano ea mocheso oa valve (P-T) Litekanyetso

The Tekanyetso ea mocheso ea Valve ke mohopolo oa bohlokoa ka ho fetisisa ho Volve. E laela hore khatello e sa lebelloang ea val e fokotsehe joalokaha mocheso oa ts'ebetso oa atleha.

Bakeng sa li-valve tsohle tse latelang, Tekanyetso ea khatello e hlalosoa ke a chate ea maikutlo a mocheso oa Val. Chate ena, Ho ipapisitsoe le Valve's Lintho tse bonahalang (E.g., Carbon Steel A216 WCB, Steel A351 CF8M) le Tekanyetso ea Sehlopha, Tseba khatello e phahameng ea ho sebetsa ka thata ea mocheso ka lithemparetjha tse fapaneng.

Mohlala, Sehlopha 150 Carbon Steel Valve a ka sebetsana le haufi le 285 PSI ka mocheso o fetisisang, Empa ha mocheso o tsoha ho 300 ° C (572° F), Khatello ea eona e ka tlase e ka oela ka tlase 100 PSI.

Ke lintlha life tsa bohlokoa tse amang litekanyetso tsa khatello ea mathata?

Lintho tsa 'mele tsa' mele: Ena ke ntho ea bohlokoa. Lisebelisoa tse fapaneng (Carbon Sense, ts'epe e sa beng le mabali, allow steel, Brass) e na le matla a fapaneng a sehlooho a sehlooho le ho hanyetsa mochesong o fapaneng.
Mocheso o sebetsang: Joalokaha ho boletsoe, Mocheso o ama ka kotloloho matla a lintho tse bonahalang ebe ka hona o laela bokhoni ba khatello ea mathata.
Sciol Standard: E fapaneng tekanyetso ea maemo a boima Litokomane (E.g., AME, Api, Ho tloha) ho ba le litlhoko tse fapaneng bakeng sa moralo, Lisebelisoa, le teko.
Mofuta oa Khokahano: Matla a matla le a ho tiisa a mefuta e fapaneng ea mefuta e fapaneng ea mefuta e fapaneng joalo ka ho phatloha, weld, kapa litekanyetso tse ngata li ama tekanyetso ea mathata a theko.
Mofuta oa Valve: Moralo o ka hare oa li-valve tse fapaneng, joalo ka a Lekola tekanyetso ea khatello ea Valve Khahlano le vate ea heke, e bolela lintlha tsa bona tse fokolang tse mabapi le khatello le ho tiisa li ka fapana.

Lintho tse Thata, Ho sebetsa ka mocheso le khatello ea khatello ea khatello ea lipalo

Lintho tse Thata	Khatello (PN)	Mocheso	Mecha ea litaba
Bohlabali ba sootho	≤ 1.0 Mpa	-10° C ho 200 ° C	Metsi, Steam, moea, khase, le lihlahisoa tsa oli.
Khothei e matla ea tšepe	≤ 2.5 Mpa	-30° C ho ea 300 ° C	Metsi, Steam, moea, le lihlahisoa tsa oli.
Ducusley Iron	≤ 4.0 Mpa	-30° C ho 350 ° C	Metsi, Steam, moea, le lihlahisoa tsa oli.
Ict-Slicon ea phahameng ea silicon ea lefu e phahameng	≤ 0.25 Mpa	< 120° C	Mefuta ea Media.
Carbon Sense	≤ 32.0 Mpa	-30° c ho 425 ° C	Metsi, Steam, moea, hydrogen, ammonia, Nitrogen, le lihlahisoa tsa peterole.
Copper Alloy	≤ 2.5 Mpa	-40° c ho 250 ° C	Metsi, metsi a leoatle, oksijene, moea, Lihlahisoa tsa oli, le Steam.
Kopo ea mocheso o phahameng (Alloy)	≤ 17.0 Mpa	≤ 570 ° C	Lihlahisoa tsa Steam le Petroleum. <BR> Hlokomela: Khetho e tlameha ho latela litekanyetso tsa khatello ea mocheso.
Steel ea crykonic (Tšepe ea mocheso o tlase)	≤ 6.4 Mpa	≥ -196 ° C	Ethylene, propylene, khase ea tlhaho (Lng), metsi naetrojene, etc.
Ts'epe e sa beng le mabali (Asiti-e thibelang)	≤ 6.4 Mpa	≤ 200 ° C	Nitric acid, actic acid, etc.

Mokhoa oa ho khetha Tekanyetso e nepahetseng ea bothata

Latela mehato ena bakeng sa ts'ebetso ea saense le e bolokehileng:

Tseba maemo a sebetsang: Hlalosa ka ho hlaka khatello ea maemo a phahameng a Sistimi le mocheso o matla oa ts'ebetso. Ena ke motheo oa khetho.
Khetha lintho tsa bohlokoa: Khetha 'mele o loketseng le lisebelisoa tsa Trim tse ipapisitse le sethaleng sa mokelikeli, mocheso, le lintlha tse ling.
Kopanya chate ea litekanyetso tsa p-t: Fumana chate ea tekanyetso ea Valve ea Valve e tsamaellanang le lisebelisoa tsa hau tse khethiloeng.
Netefatsa 'me u sebelise sebaka sa polokeho: Chate, Fumana mocheso oa hau oa ho sebetsa ka thata 'me u fumane khatello e lumellanang e lumellanang. Netefatsa hore boleng bona ba khatello bo joalo kholo ho feta Khatello ea Sisteme ea hau e sebetsang, mme o kenyeletsa marapo a polokeho (hangata 10%-25% e khothalletsoa).
Phethela tekanyetso: Khetha A Tekanyetso ea mathata Who curve ea hau e akaretsa ntlha ea hau ea ts'ebetso.

Mohlala: Sistimi e na le khatello e matla ea 45 Bar (Makasine. 653 PSI) le mocheso o phahameng oa Celsi oa 300 ° C (572° F). Mochine o mouoane ke mouoane, 'me thepa e a216 wcb estm stebon steel. Ka ho sheba li-asme b16.34, o ne o tla fumana hore sehlopha 300 valve e lekantsoe hoo e ka bang 50 Bara ka mocheso oo, athe sehlopha 150 Tekanyetso ea Valve e tlaase haholo. Ka hona, o tlameha ho khetha sehlopha 300 kapa tekanyetso e phahameng ea khatello.

Fumana tharollo ea hau e loketseng – E ntlafatsa le Bmag