Litlhaloso le mekhahlelo ea li-valve li tla lumellana le litlhoko tsa litokomane tsa moralo oa lipeipi
1, tseho hlahloba valvemohlala o lokela ho bonts'oa ho latela litlhoko tsa nomoro ea maemo a NCHABA.Haeba maemo a khoebo a lokela ho bonts'a tlhaloso e nepahetseng ea mohlala.
2, tseho hlahloba valvekhatello ea ho sebetsa, litlhoko ≥ khatello ea ho sebetsa ha pipeline, ntle le ho ama theko ea sebaka, valve e ka mamella khatello e lokela ho ba khōlō ho feta khatello ea liphaephe ea sebele;Ka lehlakoreng le leng la valve e lokela ho khona ho mamella makhetlo a 1.1 khatello ea valve ntle le ho lutla;Boemo bo bulehileng ba li-valve, 'mele oa valve o lokela ho khona ho mamella litlhoko tsa khatello ea valve habeli.
3, ho hlahloba valvelitekanyetso tsa tlhahiso, li lokela ho hlalosa motheo oa nomoro e tloaelehileng ea NATIONAL, haeba maemo a khoebo, konteraka ea theko e lokela ho kenngoa tokomaneng ea khoebo.
Khetha thepa ea valve ea ho hlahloba
1. Thepa ea valve, kaha phala ea tšepe e bohlooho ha e khothalletsoe ho sebelisoa butle-butle, thepa ea 'mele ea valve e lokela ho ba haholo-holo ductile cast iron,' me e bontše nomoro ea letšoao le lintlha tsa 'mele le tsa lik'hemik'hale tsa tlhahlobo ea lik'hemik'hale.
2, thepa ea kutu, ikitlaelletsa ho ba le kutu ea tšepe e sa hloekang (20Cr13), valve e kholo ea bophara e lokela ho ba kutu e kentsoeng ka tšepe e sa hloekang.
3, thepa ea linate, e sebelisa koporo ea aluminium e entsoeng ka tšepe kapa boronse ea aluminium e entsoeng, 'me boima le matla li kholo ho feta kutu.
4, lisebelisoa tsa li-stem bushing, boima ba eona le matla ha lia lokela ho ba kholo ho feta kutu, 'me boemong ba ho qoelisoa metsing le kutu,' mele oa valve ha o thehe kutu ea electrochemical.
5. Thepa ea ho tiisa bokaholimo:
Mefuta ea li-valve e fapane, mekhoa ea ho tiisa le litlhoko tsa thepa li fapane;
(2) Belofo e tloaelehileng ea heke ea wedge, lisebelisoa tsa lesale la koporo, mokhoa oa ho lokisa, mokhoa oa ho sila o lokela ho hlalosoa;
(3) Lintlha tsa tlhahlobo ea 'mele, ea lik'hemik'hale le tsa bophelo bo botle ea valve e bonolo ea heke le lisebelisoa tsa liplate tsa valve;
(4) Belofo ea serurubele e lokela ho bontša thepa e koalang holim'a 'mele oa valve le lisebelisoa tse koalang holim'a poleiti ea serurubele;Lintlha tsa bona tsa tlhahlobo ea 'mele le lik'hemik'hale, haholo-holo litlhoko tsa bophelo bo botle ba rabara, ts'ebetso e khahlanong le botsofali, ho hanyetsa ho roala;Rabara le rabara ea epDM hangata li sebelisoa, 'me rabara e nchafalitsoeng e thibetsoe ka thata.
6, ho paka shaft ea valve
(1) Hobane li-valve tsa marang-rang a liphaephe li atisa ho buloa le ho koaloa hangata, ho paka ho hlokahala hore ho se sebetse ka lilemo tse 'maloa, ho paka ha ho tsofale,' me phello ea ho tiisa e bolokiloe nako e telele;
(2) Ho paka shaft ea li-valve ho boetse ho lokela ho ba le ho bula le ho koala khafetsa, phello e ntle ea ho tiisa;
(3) Ho latela litlhoko tse ka holimo, mochini o tlatsang shaft valve ha o fetohe bophelo bohle kapa ho feta lilemo tse leshome;
(4) Haeba ho paka ho hloka ho nkeloa sebaka, moralo oa valve o lokela ho nahana ka mehato ea ho nkela sebaka tlas'a khatello ea metsi.
Sheba tlhahlobo ea ts'ebetso ea valve
1. Ha tlhaloso e itseng ea valve e etsoa ka lihlopha, ts'ebetso e latelang e tla lekoa ke ba boholong:
Torque ea ho bula le ho koala ha valve tlas'a khatello ea ho sebetsa;
(2) tlas'a khatello ea ho sebetsa, linako tse tsoelang pele tsa ho bula le ho koala ha valve ho ka netefatsoa;
(3) Valofo e maemong a phetisetso ea metsi a phaephe ea ho lemoha phallo ea coefficient.
2. Liteko tse latelang li lokela ho etsoa pele valve e tloha fekthering:
(1) Ha valve e buloa, 'mele oa valve o lokela ho jara makhetlo a mabeli ho lemoha khatello ea ka hare ea boleng ba khatello ea valve e sebetsang;
(2) Tlas'a boemo bo koetsoeng, mahlakoreng ka bobeli a valve ka ho latellana tlas'a linako tse 11 tsa boleng ba khatello ea valve, ha ho na ho lutla;Empa tšepe tiiso serurubele belofo, dutla boleng ha e moholo ho feta ditlhoko tse amehang
Anticorrosion ea ka hare le ka ntle ea valve ea ho hlahloba
1, valve 'mele (ho kenyeletsoa gearbox) ka hare le ka ntle, pele e lokela ho thunngoa ho qhomisa lehlabathe ho hloekisa mafome, loanela ho electrostatic spraying phofo bao e seng chefo epoxy resin, botenya ho fihlela ho 0?Ho feta 3 mm.Li-valve tse kholo tsa electrostatic spraying non-toxic epoxy resin ho thata, le tsona li lokela ho hlatsuoa, ho fafatsoa ka pente e tšoanang e se nang chefo ea epoxy.
2. Likarolo tsohle tsa 'mele oa valve le poleiti ea valve li hloka anticorrosion e feletseng.Ka lehlakoreng le leng, e ke ke ea rusa haeba e kolobisitsoe ka metsing, 'me ho ke ke ha e-ba le kutu ea electrochemical pakeng tsa litšepe tse peli.Likarolo tse peli tsa bokaholimo bo boreleli ho fokotsa ho hanyetsa metsi.
3. Litlhoko tsa bophelo bo botle ba anticorrosive epoxy resin kapa pente 'meleng oa li-valve li lokela ho lekoa ke ba boholong ba nang le matla a ho laela.Lintho tsa lik'hemik'hale le tsa 'mele le tsona li lokela ho finyella litlhoko tse nepahetseng.
Ho paka li-valve le lipalangoang
1. Mahlakore ka bobeli a valve a lokela ho ts'oaroa ka poleiti e thibelang leseli.
2. Li-valve tsa caliber tse mahareng le tse nyane li lokela ho tlangoa ka thapo ea joang ebe li tsamaisoa ka lijaneng.
3, valve e kholo ea bophara e boetse e na le foreimi e bonolo ea lepolanka e tsitsitseng, e le ho qoba tšenyo nakong ea lipalangoang
Nako ea poso: Oct-22-2021