Njira zodzitchinjiriza pakuyika mavavu Kugwira ntchito pafupipafupi kwa mavavu a fulorini okhala ndi anticorrosive

Njira zodzitchinjiriza pakuyika mavavu Kugwira ntchito pafupipafupi kwa mavavu a fulorini okhala ndi anticorrosive

 
Pamene valve imayikidwa, wogwiritsa ntchito sayenera kumvetsetsa njira yake yopangira, chifukwa valve imayikidwa pamene chitetezo ndi chofunika kwambiri. Ngati simukumvetsera panthawi ya kukhazikitsa, n'zosavuta kuwononga kapena kutuluka kwa valve, zomwe zingayambitse mavuto ambiri. Ndiye mungateteze bwanji mukamayika valve? Otsatirawa Xiaobian afotokoza mwachindunji njira zodzitetezera pakuyika valavu.
Onani chitetezo cha valve
KUTI TIPEZE KUKHALA kwa valavu ya cheke kapena kubwereranso kwa zofalitsa pambuyo pa kulephera, zomwe zimapangitsa kuti khalidwe la mankhwala liwonongeke, ngozi ndi zotsatira zina zoipa, ma valve odulidwa amodzi kapena awiri amaikidwa patsogolo ndi pambuyo pake. Ngati ma valve awiri otseka aperekedwa, valavu yowunikira ikhoza kuchotsedwa mosavuta kuti igwiritsidwe ntchito.
Malo otetezedwa a valve chitetezo
Kuyika njira isanayambe komanso itatha ambiri musakhazikitse valve yogawa, pokhapokha pazochitika zaumwini, zingagwiritsidwe ntchito. Ngati mphamvu yapakati ili ndi tinthu tating'onoting'ono tomwe timakhudza valavu yachitetezo sichingatsekeke pambuyo pochoka, kukhazikitsa valavu yachipata yosindikizidwa kutsogolo ndi pambuyo pa chitetezo, valve yachipata iyenera kukhala yotseguka, valve yachipata. ndi valavu yachitetezo yokhala ndi valavu yoyendera ya DN20 kupita kumlengalenga.
Pamene mpumulo wa sera ndi TV zina kutentha firiji kwa boma olimba, kapena kuchepetsa kuthamanga gasification ndi kuti kuwala madzi sing'anga kutentha m'munsimu 0 digiri Celsius, valavu chitetezo amafuna nthunzi kutentha. Vavu yachitetezo pazambiri zowononga, kutengera kukana kwa dzimbiri kwa valavu, lingalirani zowonjeza filimu yosaphulika yosaphulika polowera valavu. Valavu yotetezera gasi nthawi zambiri imaperekedwa ndi valavu yodutsa molingana ndi kukula kwake, ngati cholowera pamanja.
Zida zodzitetezera za valve yochepetsera kuthamanga
Malo opangira ma valve ochepetsa mphamvu amakhala ndi mitundu itatu. Miyezo yamagetsi imayikidwa isanayambe komanso itatha valavu yochepetsera kuti iwonetsetse kupanikizika musanayambe ndi pambuyo pake. Pali valavu yotetezedwa yotsekedwa bwino pambuyo pa valavu kuti ateteze kulephera kwa valve yochepetsera kuthamanga, valavu pambuyo pa kupanikizika kumapitirira kuthamanga kwabwino pamene kulumpha, kuphatikizapo valavu pambuyo pa dongosolo. Chitoliro chokhetsa chimayikidwa kutsogolo kwa valavu kuti chidule valavu, ntchito yaikulu ndiyo kukhetsa mtsinje wothamanga, ena amagwiritsa ntchito msampha. Ntchito yaikulu ya chitoliro chodutsa ndi pamene kuthamanga kwa valve kuchepetsa kulephera, kutseka valavu yochepetsera mphamvu isanayambe komanso itatha valavu yodulidwa, tsegulani valavu yodutsa, sinthani pamanja kayendetsedwe kake, yesetsani kuyendayenda kwakanthawi, kuti mukonze valavu yochepetsera kuthamanga kapena kusintha valavu yochepetsera kuthamanga.
Zida zotetezera misampha
Pali mitundu iwiri ya misampha yokhala ndi chitoliro cholambalala ndipo palibe chitoliro cholambalala pambali pa msampha, kuchira kwa condensate ndi condensate osati kuchira, kutulutsa ndi zofunikira zina zapadera za msampha, zitha kukhazikitsidwa mofanana.
Msampha wokhala ndi valavu yodutsa umagwiritsidwa ntchito makamaka kutulutsa madzi ochulukirapo pamene payipi iyamba kuyenda. Mukamatsuka Msampha, SIKOyenera KUKHALA CONDENSATE KUPYOLERA PAPASI WABYPASS, zomwe zingapangitse nthunzi kuthawira mu RETURN WATER SYSTEM. Muzochitika zabwino, musayike chitoliro cholambalala. Pokhapokha ngati kutentha kwa kutentha kumafunika kwambiri, zida zotenthetsera zopangira mosalekeza ziyenera kukhala ndi chitoliro chodutsa.
Kugwira ntchito pafupipafupi kwa valavu ya anticorrosive yokhala ndi fluorine
1, fluorine alimbane pulasitiki valavu sing'anga kutentha: Kampani yathu ya mitundu yosiyanasiyana ya fluorine alimbane mavavu pulasitiki, ntchito fluorine pulasitiki ndi F46 (FEP), ntchito sing'anga kutentha sangathe upambana 150 ℃ (yapakati kutentha kungakhale 150 ℃ kwa nthawi yochepa Nthawi, kutentha kwanthawi yayitali kuyenera kuwongoleredwa mu 120 ℃), apo ayi, zigawo za valve zomwe zimayika F46 ndizosavuta kufewetsa, kupindika, zomwe zimapangitsa kuti valavu itseke undead, kutayikira kwakukulu.
Ngati kutentha kwa sing'anga yogwiritsidwa ntchito ndi pansi pa 180 ℃ kwa nthawi yochepa, ndipo kutentha kuli pansi pa 150 ℃ kwa nthawi yaitali, pulasitiki yamtundu wina ikhoza kusankhidwa; PFA, koma yokhala ndi pulasitiki ya PFA fluorine ndiyokwera mtengo kuposa yokhala ndi F46 pamtengo.
2, musakhale ndi zokakamiza zoipa. Vavu ya pulasitiki yokhala ndi fluorine iyenera kupewa kugwiritsa ntchito kukakamiza koyipa mu payipi, ngati pali kupanikizika koyipa, kosavuta kupangitsa kuti pulasitiki ya fluorine yomwe ili mumtsempha wa valve imayamwa (ng'oma kunja), kupukuta, kumapangitsa kuti valve itseguke ndikutsekeka. .
3, kuthamanga, kuthamanga kusiyana kuyenera kuyendetsedwa mumtundu wovomerezeka. Makamaka ma bellows seal okhala ndi fluorine pulasitiki yowongolera valavu, valavu yapadziko lonse lapansi. Chifukwa mavuvu amapangidwa ndi zida za tetrafluoric, kupsinjika ndi kupanikizika kumakhala kwakukulu, komwe kungayambitse kuphulika kwa mavuvu.
Bellows chisindikizo alimbane fluorine pulasitiki yoyang'anira valavu, kugwiritsa ntchito chikhalidwe kuthamanga, kuthamanga kusiyana ndi lalikulu, akhoza kusinthidwa PTFE kulongedza chisindikizo.
4. Sing'anga ya valavu ya pulasitiki yokhala ndi fluorine sayenera kukhala ndi tinthu tating'ono tolimba, makhiristo, zonyansa, ndi zina zotero, kuti zisawonongeke pachimake cha valve ndi mpando wa valve wokhala ndi pulasitiki wosanjikiza wa fluorine kapena mavuvu a PTFE potsegula ndi kutseka. Sing'anga ili ndi tinthu tolimba, makhiristo, zonyansa, kusankha, spool, mpando ungagwiritsidwe ntchito ku Hastelloy.
5, yokhala ndi valavu yoyang'anira pulasitiki ya fluorine iyenera kukhala molingana ndi mayendedwe ofunikira (mtengo wa Cv) kusankha kolondola kwa kukula kwa valavu. Mukasankha, malinga ndi kufunikira kwa magalimoto (Cv) ndi magawo ena aukadaulo amawerengedwa kukula kwa valavu kuyenera kusankhidwa ndi kutsegulidwa kwa valavu, monga kukula kwa valavu yayikulu kwambiri, kumapangitsa kuti valavu ikhale yotseguka kwa nthawi yayitali. Kuthamanga kwa nthawi, pansi pa zovuta zazing'ono komanso zapakatikati, zosavuta kupanga valavu pachimake ndi ndodo ya valavu ndi mphamvu ya atolankhani ndikupanga valavu kugwedezeka, Ndodo yapakati pakatikati kwa nthawi yaitali pansi pa zotsatira, ngakhale kupanga tsinde la valve kusweka.