Vavu yachitetezo nthawi zambiri imakumana ndi zolakwika ndikuwongolera malangizo ogwiritsira ntchito valavu ya fluorine

Vavu yachitetezo nthawi zambiri imakumana ndi zolakwika ndikuwongolera malangizo ogwiritsira ntchito valavu ya fluorine

Valve yachitetezo nthawi zambiri imakumana ndi zolakwika pakuwongolera ndi kukonza
1. Musatsegule pamene kupanikizika kwatchulidwa
Chifukwa cha izi ndikuti kupanikizika kosalekeza sikulondola. Kuponderezedwa kwa kasupe kapena malo a nyundo kuyenera kusinthidwa; Ma disc amamatira pampando. Valavu yachitetezo iyenera kukhala yoyeserera pafupipafupi ya mpweya kapena madzi; Chingwe chachitetezo chamtundu wa Lever chimakakamira kapena nyundo yolemera imasunthidwa. Kulemera kwake kuyenera kusinthidwa ndipo lever iyenera kuyenda momasuka.
2, kuchepera kwa kukakamizidwa kotchulidwa kotseguka
Kupanikizika kwakukulu sikuli kolondola; Spring kukalamba kasupe elasticity amachepetsa. Chitsulo chosinthira kapena kasupe chiyenera kumangidwa bwino.
3. Chimbale sichibwerera kumpando pambuyo potuluka
Izi makamaka chifukwa cha masika kupinda tsinde, chimbale unsembe malo si olondola kapena munakhala. Ayenera kulumikizidwanso.
4, kudumpha pafupipafupi kwa disc kapena kugwedezeka
Chifukwa chachikulu ndi chakuti kuuma kwa kasupe ndi kwakukulu kwambiri. Kasupe wokhala ndi kuuma koyenera ayenera kugwiritsidwa ntchito m'malo mwake; Bwalo lokonzekera silinasinthidwe bwino, kotero kuti kupanikizika kuli kwakukulu kwambiri. Malo a mphete yosinthira ayenera kusinthidwa; Kukaniza kwa chitoliro chotulutsa ndikokulirapo, zomwe zimapangitsa kuti kutsekeka kwam'mbuyo kwambiri. Kukana kutulutsa mapaipi kuyenera kuchepetsedwa.
5. Kupanikizika kumapitirira kukwera pambuyo potopa
Izi makamaka chifukwa kusankha mavavu chitetezo kusamutsidwa Xiaoping zida chitetezo kumasulidwa, ayenera kusankhidwanso valavu yoyenera chitetezo; tsinde pakati mzere kapena kasupe dzimbiri, kuti chimbale sangathe anatsegula kwa msinkhu woyenera, ayenera anasonkhana tsinde kapena m'malo kasupe; Ngati kudulidwa kwa chitoliro sikukwanira, chitoliro chotulutsa chitoliro chogwirizana ndi malo otsetsereka otetezedwa chiyenera kutengedwa.
6, kugwa
Pansi pa kukakamiza kwanthawi zonse kwa zida, kutayikira pakati pa diski ndi kusindikiza pamwamba pampando kumadutsa digiri yovomerezeka. Chifukwa chake ndi: pali dothi pakati pa diski ya valve ndi malo osindikizira a mpando. Angagwiritse ntchito kukweza wrench kutsegula valavu kangapo, dothi anatsuka; Kuwonongeka kwa malo osindikizira. Iyenera kukonzedwa pogaya kapena kugaya pambuyo potembenuka molingana ndi kuchuluka kwa kuwonongeka. Kupindika kwa tsinde, kupendekeka, kapena lever ndi fulcrum kupatuka, zomwe zimapangitsa kuti spool ndi ma disc asamayende bwino. Iyenera kusinthidwa kapena kusinthidwa; Kuthamanga kwa kasupe kumachepetsa kapena kutayika. Miyezo monga kusintha kasupe ndi kukonzanso kuthamanga kotsegulira kuyenera kutengedwa.
Malangizo ogwiritsira ntchito mavavu okhala ndi fluorine
Makhalidwe akuluakulu a valve yokhala ndi fluorine:
Choyamba, fluorine lined valve chemical performance:
Kukana kukalamba kwa Atmospheric: kukana kwa radiation komanso kutsika pang'ono: kuwonekera kwanthawi yayitali mumlengalenga, pamwamba ndi katundu sizisintha.
Kusayaka: index ya malire a oxygen pansi pa 90.
Kukana kwa Acid ndi alkaline: osasungunuka mu ma acid amphamvu, maziko ndi zosungunulira za organic.
Kukana kwa okosijeni: kukana dzimbiri ndi ma okosijeni amphamvu.
Awiri, fluorine mzere valavu ntchito makhalidwe:
Magwiridwe: Kutentha kwapakati: -100 ℃ ~ -150 ℃
Kuthamanga kwapakatikati: kuthamanga kwabwino: 2.5mpa, kupanikizika koyipa kwa firiji 70KPa
Kukana dzimbiri: zitsulo PTFE gulu chitoliro, kuwonjezera zitsulo zitsulo lifiyamu, potaziyamu, sodium, chlorine trifluoride, mpweya trifluoride pa kutentha, mkulu otaya mlingo madzi fluorine, akhoza kukana pafupifupi onse mankhwala TV, kuphatikizapo anaikira nitric asidi ndi aqua mafumu dzimbiri. , imatha kugwira ntchito kutentha kwa 230 ℃-250 ℃ kwa nthawi yayitali. Chitsulo polyvinylidene fluoride kapena zina vinylidene fluoride gulu chitoliro, halogen, halogenated hydrocarbons, amphamvu oxidants, otentha asidi, alkali, zosiyanasiyana zosungunulira organic ndi kukana dzimbiri, koma kugonjetsedwa ndi utsi sulfuric acid, anaikira otentha sulfuric acid ndi asidi nitric, ketoni. , esters, amines ndi kutentha kwapamwamba kwa sulfonating agent corrosion pamwamba pa 90 ℃.
Ubwino waukulu wa valavu yokhala ndi fluorine:
Kutentha kwakukulu kosagwira ntchito mpaka 250 ℃
Kukana kutentha kochepa ndi kulimba kwa makina abwino; Ngakhale kutentha kumatsika mpaka -196 ℃, elongation ya 5% imatha kusungidwa.
Kukana dzimbiri kwa mankhwala ambiri ndi zosungunulira, kusonyeza inertia, asidi amphamvu ndi alkali, madzi ndi zosiyanasiyana zosungunulira organic.
Kulimbana ndi nyengo ndi moyo wokalamba mu mapulasitiki.
Kupaka mafuta kwambiri ndizomwe zimagundana kwambiri muzinthu zolimba.
Non-adhesion ndi osachepera pamwamba chipwirikiti mu zipangizo olimba, satsatira zinthu zilizonse.
Zopanda poizoni ndi physiological inertia, zopanda poizoni kwa zamoyo.
Ntchito zazikulu za valavu ya fluorine:
Fluorine zitsulo vavu ndi ZOyenera kutentha kwambiri gasi zikuwononga ndi madzi, mitundu ina ya zitsulo pulasitiki gulu chitoliro ndi zitsulo chitoliro si oyenera kutengera sing'anga, zitsulo PTFE zovuta. Chitoliro chachitsulo cha polyvinylidene fluoride n'choyenera kutumiza zowononga zowononga ndi kutentha kwa ntchito kuchokera -40 ℃ mpaka +150 ℃.
Fluorine lining valve processing technology kuyambitsa
A, tetrafluoroethylene (PTFE) - sodium naphthalene solution bonding njira
Polytetrafluoroethylene (PTFE) - sodium naphthalene njira mankhwala bonding njira: sodium naphthalene njira mankhwala fluorine munali zipangizo, makamaka kudzera dzimbiri madzi ndi PTFE pulasitiki mankhwala anachita, kugwetsa mbali ya maatomu fluorine padziko zinthu, kotero pamwamba kumanzere. gulu la carbonized ndi magulu ena a polar. Infuraredi sipekitiramu limasonyeza kuti kumayambiriro gulu hydroxyl, gulu carbonyl ndi unsaturated chomangira ndi magulu ena polar pamwamba, magulu amenewa akhoza kuonjezera mphamvu padziko, kuchepetsa kukhudzana Angle, kusintha wettability, kuchokera zovuta zomata. Iyi ndi njira yothandiza kwambiri komanso yogwiritsidwa ntchito kwambiri pakati pa njira zonse zomwe zaphunziridwa pakali pano. Sodium naphthalene tetrahydrofuran amagwiritsidwa ntchito ngati njira ya dzimbiri. Njira yolumikizirana ili motere:
(1) Kukonzekera njira yothetsera: kuwonjezera kuchuluka kwa sodium zitsulo mu njira ya tetrahydrofuran ndi naphthalene, misa gawo la sodium zitsulo umalamulidwa pa 3% -5%, chipwirikiti firiji kwa pafupifupi 2h, mpaka mtundu wa yankho likuwoneka lakuda kapena lakuda;
(2) PTFE workpiece kuchitiridwa anamizidwa mu yankho kwa pafupifupi 5 ~ 10min, ndiyeno ankawaviika mu ** yankho kwa 3 ~ 5 min;
(3) Chotsani chogwirira ntchito mu njira yothetsera vutoli, muzimutsuka ndi madzi ndikuchiyika pamthunzi kuti chiume mwachibadwa;
(4) Sankhani epoxy utomoni, silikoni kapena polyurethane monga zomatira, wogawana TACHIMATA pamwamba mankhwala kuti amangirire ndi womangidwa yomweyo, atayima pa 24 ~ 30 ℃ kwa 24h, mukhoza kugwirizana mwamphamvu.