Ho hlophisoa ha li-valve tsa mantlha ho tla kapele ka logo ea li-valve tsa pokello le pente ea boitsebahatso

Ho hlophisoa ha li-valve tsa mantlha ho tla kapele ka logo ea li-valve tsa pokello le pente ea boitsebahatso

Ho theha li-valve le khetho ea mofuta o nepahetseng (eseng mohlala). Li-valve ke karolo ea bohlokoa ea mosebetsi oa litsebi tsa tsamaiso ea ts'ebetso ha u lokisetsa litšoantšo tsa PI. Likahare tse hlalositsoeng molaong ona li ela hloko litlhoko tse akaretsang tsa tlhahiso le polokeho. Ha o etsa moralo oa boenjiniere ka ho bua ka melaoana ena, setsebi sa sistimi se tla etsa khetho ho ipapisitse le maemo a ikhethileng a projeke, maemo a leholimo a lehae, tšebelisano-mmoho ea lifeme, litlhoko tsa ts'ebetso ea sesebelisoa, litšobotsi tsa mokelikeli, litlhoko tse khethehileng tsa basebelisi le moruo, jj. Taolo ena e boetse e hlahisa litšobotsi tsa li-valve tsa indasteri tse akaretsang le lintlha tse lokelang ho nahanoa ha ho khethoa li-valve moralong oa boenjiniere.
1. Litokisetso li sebetsa ho lihlooho tsa tsamaiso ea lik'hemik'hale. Belofo e boletsoeng ha e kenyelle valve ea polokeho, trap ea mouoane, sampling valve le valve e fokotsang khatello, empa e kenyelletsa poleiti ea orifite e fokotsang phallo, poleiti e foufetseng le lisebelisoa tse ling tsa liphaephe tse nang le mesebetsi e tšoanang le valve, le valve e khaotsoeng e le kakaretso. lebitso la likarolo tsena tsa valve. Mosebetsi oa valve o khaotsoeng o sebelisetsoa ho khaola mokelikeli kapa ho etsa hore mokelikeli o fetole tataiso ea phallo, ho ea ka tlhahiso (ho kenyeletsoa tlhahiso e tloaelehileng, ho bula le ho koala le maemo a khethehileng a ho sebetsa), litlhoko tsa tlhokomelo le polokeho le Litlhophiso, empa hape ho ela hloko maemo a moruo.
Ho theha li-valve le khetho ea mofuta o nepahetseng (eseng mohlala). Li-valve ke karolo ea bohlokoa ea mosebetsi oa litsebi tsa tsamaiso ea ts'ebetso ha u lokisetsa litšoantšo tsa PI. Likahare tse hlalositsoeng molaong ona li ela hloko litlhoko tse akaretsang tsa tlhahiso le polokeho. Ha o etsa moralo oa boenjiniere ka ho bua ka melaoana ena, setsebi sa sistimi se tla etsa khetho ho ipapisitse le maemo a ikhethileng a projeke, maemo a leholimo a lehae, tšebelisano-mmoho ea lifeme, litlhoko tsa ts'ebetso ea sesebelisoa, litšobotsi tsa mokelikeli, litlhoko tse khethehileng tsa basebelisi le moruo, jj. .
Taolo ena ka botlalo le ka kakaretso e hlahisa boemo ba li-valve maemong a thathamisitsoeng le litlhoko tse qaqileng tsa likarolo tse fapaneng tsa lik'hemik'hale. Sheba mokhoa oa motheo oa yuniti ea setšoantšo sa PI sa yuniti e tsamaellanang.
Taolo ena e boetse e hlahisa litšobotsi tsa li-valve tse akaretsang tsa indasteri le lintlha tse lokelang ho nahanoa ha ho khethoa li-valve moralong oa boenjiniere.
2. Tlhophiso ea valve
Valofo e behiloe moeling
Lisebelisoa le liphaephe tse tloaelehileng li tla khaoloa moeling oa semela (hangata ka har'a sebaka sa moeli oa semela)
Ho robeha ha valve, ntle le maemong a latelang:
(1) Mokhoa oa ho ntša metsi.
(2) phala ea ho ntša metsi ha chute ea phallo ea tšohanyetso e fumaneha ka ntle ho moeli; Haeba li-valve li tlameha ho beoa maemong ana a mabeli, ho tiisoa ha lead ho boetse hoa hlokahala ho bula (CSO)
(3) phala ea lintho tse bonahalang e ke keng ea baka likhoele le likotsi.
(4) Tube ea thepa ntle le tekanyo.
FEIE. 2.0.1 tlhophiso ea li-valve moeling
Li-valve moeling li behiloe ka litsela tse 'maloa joalokaha ho bontšitsoe ho Setšoantšo sa 2.0.1. Moo (1) e sebetsang ho lisebelisoa tse akaretsang
Khaola; Maemong a likotsi tsa polokeho tse kang mollo kapa likotsi tsa bohlokoa tsa boleng ba sehlahisoa tse bakoang ke likhoele tsa thepa, lipoleiti tse foufetseng li lokela ho eketsoa ho FIG. 2.0.1 ho thibela ho lutla ka hare ho valve. (3) le (5) ho FIG. 2.0.1 li loketse ho fiela mola o ka holimo kapa o tlase ka mor'a ho fepa. Valve A e ka boela ea sebelisoa bakeng sa ho hloekisa, ho hloekisa, ho lemoha ho dutla, kapa meter ea teko e ka kenngoa pakeng tsa li-valve tse peli tse latellanang. (5) ho Setšoantšo sa 2.0.1 se sebetsa moo liphetoho tsa khatello li ka 'nang tsa e-ba khōlō' me valve ea ho hlahloba e sebetsa e le ho khaola hang-hang.
Ho beha valve ea motso
Ha seaplane se hloka ho isoa ho basebelisi ba fetang a le mong, ho thusa ho boloka matla kapa ho boloka matla, ho thibela serame, ho kenyelletsa lisebelisoa tse hoketsoeng.
Ho phaella ho valve e khaotsoeng, valve e khaotsoeng e bitsoang "root valve" e kenngoa phapeng ea lekala haufi le phala e kholo. Hangata e sebelisoa mekhoeng ea lintho tse tloaelehileng (mohlala, mouoane, moea o hatelitsoeng, naetrojene, joalo-joalo). Tlhophiso e tšoanang ea hlokahala ha mokhoa oa tšebetso o sebelisoa bakeng sa basebelisi ba bangata (mohlala, li-solvents). Belofo e bontšitsoeng ho Setšoantšo sa 2.0.2 ke valve ea motso. Litlhokahalong tsa ho boloka matla a antifreeze, sebaka se pakeng tsa valve ea motso le mookameli e lokela ho ba nyane kamoo ho ka khonehang.
Setšoantšo sa 2.0.2 Setšoantšo sa moralo oa ho beha valve ea motso
Li-valve tsa metso li lokela ho kenngoa liphaepheng tsohle tsa makala tsa liphaephe tsa lisebelisoa tse tloaelehileng setsing sa lik'hemik'hale ho qoba motho ka mong
Tšenyo ea li-valve e baka ho koala ha semela kapa semela.
Liphaephe tsa metsi a mouoane le holim'a metsi, esita le ho semela se le seng kapa thepa e le 'ngoe, ha phala ea lekala e feta bolelele bo itseng, e boetse e hloka ho eketsa valve ea motso ho fokotsa libaka tse shoeleng, ho fokotsa tšebeliso ea matla, ho thibela leqhoa.
Lisebelisoa tse peli kapa ho feta tse thusang tsa mouoane li lokela ho khethoa ho latela bohlokoa ba tlhahiso ea motso oa phala ea lekala.
Sephahla sa motso oa phala ea lekala ea lintho tse tloaelehileng se behiloe ke setsebi sa liphaephe ha ho etsoa moralo oa liphaephe, 'me setsebi sa tsamaiso ea ts'ebetso se hloka ho hlahloba hore na lekala le loketse. 'Me valve ea motso e emeloa setšoantšong sa PI ea thepa ea sechaba (setšoantšo sa kabo).
Li-valve tse peli
Liquefied petroleum gas, tse ka tukang, tse chefo le lino tsa bohlokoa le tse ling tse senyang haholo, joalo ka asiti e matla, caustic soda mme li na le litlhoko tse ikhethang (tse kang monko o monko o bakileng tšilafalo e tebileng tikolohong) tanka e bohareng, le mola o tlase ho ea tlase. lisebelisoa tse ling, ho sa tsotellehe hore na li haufi le lisebelisoa tse ling tsa valve le li-valve tse peli li lokela ho kenngoa letotong (li-valve tse peli), E 'ngoe ea tsona e lokela ho ts'oaroa khahlanong le li-nozzles tsa tanka. Ha tanka ea polokelo e le kholo kapa e hole haholo, valve e betere ea taolo e hole. Ho fokotsa palo ea li-valve, kopanya liphaephe tse 'maloa sebakeng se le seng joalokaha ho bontšitsoe ho FIG. 2.0.3–1 haeba tshebetso e dumella.
Sesepa sa drain sa setshelo se nang le mecha ea litaba e boletsoeng ka holimo le sona se tla ba habeli, joalo ka ha ho bonts'itsoe ho Setšoantšo sa 2.0.3-1.
JB/T 106-2004: boholo ba lebitso (DN), khoutu ea khatello kapa khoutu ea khatello ea ho sebetsa, mofuta oa thepa kapa khoutu, lebitso la moetsi kapa letšoao la khoebo, nomoro ea sebōpi (valve ea ho lahla) e tla tšoauoa ka nako e telele holim'a 'mele oa valve ea khatello ho latela ho ea ho GB/T 12220-1989. Li-valve tse nang le litlhoko tsa tataiso ea phallo li lokela ho tšoauoa ka motsu o phallang o mahareng.
Morero o le mong, oa logo e akaretsang oa valve
Ho latela GB/T 12220 "General Valve Mark", valve e akaretsang e tlameha ho sebelisoa mme tšebeliso ea boikhethelo ea lintho tsa matšoao e tjena:
morero
seka
morero
seka
1
Boholo ba lebitso (DN)
11
Nomoro e tloaelehileng.
2
Khatello ea lebitso (PN)
12
Nomoro ea mocheso
3
Khoutu ea thepa bakeng sa likarolo tse hatelitsoeng
13
Khoutu ea lintho tse ka hare
4
Lebitso kapa lets'oao la moetsi
14
Sebaka,
5
Motsu o phallang mahareng
15
Khoutu ea lisebelisoa tsa lesela
6
Seal ring (gasket) khoutu
16
Ho tshwaya boleng le teko
7
Mocheso oa mocheso
17
Letšoao la mohlahlobi
8
Khoutu ea khoele
18
Selemo sa tlhahiso, khoeli
9
Khatello e feteletseng
19
Litšobotsi tsa phallo
10
Feme No.
2. Mekhoa ea ho tšoaea
1. Tšoaea litaba
JB/T 106-2004: boholo ba lebitso (DN), khoutu ea khatello kapa khoutu ea khatello ea ho sebetsa, mofuta oa thepa kapa khoutu, lebitso la moetsi kapa letšoao la khoebo, nomoro ea sebōpi (valve ea cast) e tla tšoauoa holim'a 'mele oa valve ea khatello ho latela GB / T 12220-1989. Li-valve tse nang le litlhoko tsa tataiso ea phallo li lokela ho tšoauoa ka motsu o phallang o mahareng.
2. Mekhoa ea ho tšoaea
GB/T 12220-1989: li-valve tse nang le boholo bo boholo ho feta kapa bo lekanang le DN50 li tlameha ho tšoauoa ka boholo ba lebitso (DN), khatello ea lebitso (PN), mohala oa thepa kapa nomoro ea khoutu ea likarolo tse hatelitsoeng, lebitso la moetsi kapa letšoao la khoebo, nomoro ea sebōpi se qhibilihang. (casting) e tla tšoauoa 'meleng oa valve. Bakeng sa li-valve tse nang le boholo bo ka tlase ho DN50, matšoao a mane a kaholimo a tla tšoauoa 'meleng oa li-valve kapa nameplate joalo ka ha ho hlalositsoe ke moqapi. Ha khatello ea lebitso la letšoao la ho lahla la 'mele oa valve e behiloe ka tlase ho boleng ba boholo ba lebitso, khatello ea lebitso e ke ke ea behoa pele ka khoutu "PN".
GB/T 12220-1989 e totobatsa motsu oa phallo e mahareng, lesale la tiiso (pad) khoutu feela ha e hlalositsoe ka mokhoa o itseng oa li-valve e tlameha ho tšoauoa 'meleng oa valve le flange ka ho latellana.
Haeba ho se na litokisetso tse khethehileng ho GB/T 12220-1989, lintho 7 — 19 tafoleng e ka holimo ke matšoao a boikhethelo a ho sebelisoa ha ho hlokahala. Tšoaea 'meleng oa valve kapa nameplate kamoo ho hlokahalang.
GB/T 12220-1989 e fana ka hore haeba boholo ba mabili a letsoho bo le boholo bo lekaneng, lebili la letsoho le lokela ho fanoa ka motsu o bontšang tataiso ea ho koala valve kapa mongolo o eketsehileng oa "off".
JB / T 106-2004: 'mele oa valve ka mokhoa oa ho lahla kapa oa lefu, letšoao la oona le lokela ho lahleloa kapa le shoe holim'a' mele oa valve ka nako e le 'ngoe. Ha sebopeho sa 'mele ka lefu forging mokhoa, logo logo logo logo eona ho phaella ho' mele ka nako e tšoanang shoa forging kapa shoe casting, ka boela tšoauoa 'meleng ka mokhoa embossing. Ha sebopeho sa 'mele oa li-valve se sebetsoa ka ho forging, pipe ea tšepe kapa tšepe ea tšepe e thellang ho etsa welding, logo ea eona ho phaella ho thehoeng ha mokhoa oa embossing, empa hape e ka sebelisoa ka litsela tse ling tse sa ameng tshebetso ea' mele oa valve. .
Tšoaea boemo 'me u tšoaee boholo
LJB /T 106-2004 regulation: ho tšoaea litaba, ho lokela ho tšoauoa 'meleng oa likarolo tseo ho leng bonolo ho li bona. Matšoao a tla bontšoa ka hohle kamoo ho ka khonehang karolong e bohareng ea 'mele oa perpendicular center line.