Ndikofunikira kukumbukira mfundo izi za kukhazikitsa ma valve! Zolemba zoyika mavavu achi German omwe adatumizidwa kunja

Ndikofunikira kukumbukira mfundo izi za kukhazikitsa ma valve! Zolemba zoyika mavavu achi German omwe adatumizidwa kunja

Ubwino wa kukhazikitsa ma valve kumakhudza mwachindunji kugwiritsa ntchito, kotero kusamala kuyenera kuperekedwa kwa izo.
(a) njira yoyika ma valve ndi malo
Ma valve ambiri ali ndi njira, monga globe valve, valve throttle valve, valve reduction valve, valve valve, etc. zonse (monga valavu yochepetsera kuthamanga), komanso ngakhale kuyambitsa ngozi (monga valavu yowunika). Vavu wamba, pali chizindikiro chowongolera pathupi la valve; Ngati sichoncho, chiyenera kudziwika bwino molingana ndi mfundo ya ntchito ya valve. Chipinda cha valve kuzungulira valavu yapadziko lonse lapansi ndi asymmetrical, madzimadzi kuti alole kuchokera pansi mpaka pamwamba kudzera pa doko la valve, kotero kuti kukana kwamadzimadzi kumakhala kochepa (kutsimikiziridwa ndi mawonekedwe), kupulumutsa ntchito yotseguka (chifukwa cha kupanikizika kwapakati) , kutsekedwa pambuyo pa kulongedza kwapakatikati, kosavuta kukonzanso, chifukwa chake valavu ya globe singathe kukhazikitsa chowonadi. Ma valve ena ali ndi makhalidwe awoawo.
Valve INSTALLATION POSITION, iyenera kukhala yosavuta kugwiritsa ntchito: NGAKHALE ngati kukhazikitsa kuli kovuta kwakanthawi, komanso kwa wogwiritsa ntchito nthawi yayitali. Mavavu a handwheel ndi mayanidwe a chifuwa (nthawi zambiri mamita 1.2 kuchokera pansi opangira), kotero kuti kutsegula ndi kutseka kwa valve kumakhala kovuta. Wwalo lamanja la valve pansi liyenera kuyang'ana mmwamba osati kupendekeka kuti zisagwire ntchito movutikira. Vavu ya makina apakhoma imadalira zida, ndipo wogwiritsa ntchitoyo ayeneranso kusiyidwa poyimirira. Kupewa ntchito ya thambo, makamaka asidi ndi zamchere, poizoni TV, apo ayi si otetezeka. Chipata sayenera inverted (ndiko, handwheel ndi pansi), apo ayi sing'anga adzakhala anakhalabe mu chivundikiro danga kwa nthawi yaitali, zosavuta dzimbiri tsinde, ndi zina ndondomeko zofunika taboo. Ndizovuta kwambiri kusintha kulongedza nthawi yomweyo. Tsegulani STEM GATE VALVES, OSATIKIKA mobisa, apo ayi chifukwa cha dzimbiri lachinyezi la tsinde lowonekera. Kwezani valavu cheke, unsembe kuonetsetsa kuti valavu chimbale ofukula, kuti Nyamulani kusintha. Swing cheke valavu, pamene anaika kuonetsetsa kuti pini mlingo, kuti kugwedezeka kusinthasintha. Valavu yochepetsera kuthamanga iyenera kuyikidwa molunjika pa chitoliro chopingasa, ndipo sichimapendekera mbali iliyonse.
(2) kukhazikitsa ma valve ndi kumanga
Kuyika ndi kumanga kuyenera kusamala, musamenye valavu yopangidwa ndi zinthu zowonongeka.
Asanakhazikitsidwe, VALVE IYENERA KUYENEKEDWA KUTI muwone mafotokozedwe NDI mitundu kuti muwone kuwonongeka kulikonse, makamaka pa tsinde. Komanso tembenuzirani kangapo kuti muwone ngati zakhota, chifukwa poyenda, zimakhala zosavuta kugunda tsinde lopindika. Komanso *** zinyalala mu valavu.
POKWULA VALVI, CHINONGA CHISAKWERENGE KUMWANJA KAPENA KUTI MTIMA KUTI PEWE KUZIPWIRITSA NTCHITO ZIMENEZI. Iyenera kumangirizidwa ku flange.
Mzere womwe valavu imalumikizidwa iyenera kutsukidwa. Mpweya wothinikizidwa ungagwiritsidwe ntchito kuwomba ma filings a iron oxide, mchenga, kuwotcherera slag ndi ma sundries ena. Zinyalala izi, osati zosavuta kukanda kusindikiza pamwamba pa valavu, particles lalikulu la zinyalala (monga kuwotcherera slag), komanso akhoza kuletsa valavu yaing'ono, kuti kulephera kwake. Mukamayika VALVE YA SCREW, KUSINTHA KUSINTHA (WAWA NDI mafuta a aluminiyamu KAPENA PTFE RAW material lamba) ayenera kukulungidwa pa ulusi wa chitoliro, osalowa mu valavu, kuti mupewe voliyumu ya kukumbukira valavu, zimakhudza kuyenda kwapakati.
Mukayika ma valve a flange, tcherani khutu kulimbitsa ma bolts molingana komanso molingana. Chovala cha valve ndi chitoliro cha chitoliro chiyenera kukhala chofanana, chilolezocho ndi choyenera, kuti valavu ipange kupanikizika kwakukulu, ngakhale kusweka. Kwa zida zowonongeka komanso osati mphamvu zambiri za valve, chisamaliro chapadera chiyenera kulipidwa. Vavu kuti welded ndi chitoliro adzakhala malo welded poyamba, ndiye chatsekedwa gawo adzatsegulidwa kwathunthu, ndiyeno welded akufa.
(3) njira zotetezera ma valve
Ma valve ena ayeneranso kukhala ndi chitetezo chakunja, chomwe ndi kuteteza kutentha ndi kusunga kuzizira. Nthawi zina zotsekemera zimasakanizidwa ndi mizere yotentha ya nthunzi. Ndi valavu yamtundu wanji yomwe iyenera kukhala kutentha kapena kuzizira, malinga ndi zofunikira zopanga.
Mfundo, kumene sing'anga valavu kuchepetsa kutentha kwambiri, zidzakhudza kupanga dzuwa kapena valavu mazira, muyenera kutentha, ngakhale kusakaniza kutentha; Kumene valavu ilibe, yotsutsa kupanga kapena kuyambitsa chisanu ndi zochitika zina zovuta, muyenera kukhala ozizira. Zida zotetezera ndi asibesitosi, ubweya wa slag, ubweya wagalasi, perlite, diatomite, vermiculite, etc.; Zinthu zoziziritsa kukhosi ndi nkhata, perlite, thovu, pulasitiki ndi zina zotero.
(4) Kudutsa ndi zida
Ma valve ena, kuwonjezera pa malo otetezera ofunikira, amakhalanso ndi bypass ndi zida. Njira yodutsa imayikidwa. Zosavuta kukonza msampha. Mavavu ena, nawonso anaika bypass. Kuyika kwa bypass kumadalira momwe ma valve alili, kufunikira kwake, ndi zofunikira pakupanga.
(5) Kusintha kwa kulongedza katundu
Valve yamagetsi, kulongedza kwina sikunakhale kwabwino, ndipo zina sizigwirizana ndi kugwiritsa ntchito media, zomwe zimafunikira m'malo mwake.
Vavu fakitale sangathe kuganizira ntchito masauzande a mitundu yosiyanasiyana ya TV, kulongedza bokosi nthawi zonse wodzazidwa ndi mizu wamba, koma pamene ntchito, ayenera kulola kulongedza katundu mu sing'anga kuti azolowere.
Mukasintha kulongedza, kanikizani mozungulira mozungulira. Msoko uliwonse wa mphete mpaka madigiri 45 ndi woyenera, mphete ndi mphete yotsegula madigiri 180. Kutalika kwapang'onopang'ono kuyenera kuganizira njira yoti chithokomiro chipitirire kukanikiza, ndipo tsopano ndikofunikira kuti gawo lakumunsi la gland likanikizire chipinda chonyamulira ndikuya koyenera, komwe nthawi zambiri kumatha kukhala 10-20% ya kuya kwathunthu. chipinda chonyamulira. Kwa mavavu ofunikira, Angle yolumikizana ndi madigiri 30. Msoko pakati pa mphete ndi mphete umagwedezeka madigiri 120. Kuwonjezera pa kulongedza katundu, komanso malinga ndi mmene zinthu zilili, ntchito mphira O-mphete (achilengedwe mphira kugonjetsedwa ndi 60 digiri Celsius ofooka alkali, butadiene mphira kugonjetsedwa ndi 80 digiri Celsius mafuta kristalo, Fluorine mphira kugonjetsedwa ndi zosiyanasiyana dzimbiri. TV pansi pa 150 digiri Celsius) mphete zitatu zosanjikizana za polytetrafluoron (zosamva zowononga zowononga zosakwana madigiri 200 Celsius) mphete ya nayiloni (yosamva 120 digiri Celsius ammonia, alkali) ndi zodzaza zina. Wosanjikiza wa TEflon yaiwisi yaiwisi tepi amatha kusintha kusindikiza ndikuchepetsa kuwonongeka kwa electrochemical kwa tsinde la valve.
Mukakanikiza zokometsera, tembenuzirani tsinde nthawi yomweyo kuti likhale lozungulira mozungulira, ndikupewa kufa kwambiri, kumangitsa chithokomiro kuti chikakamize mofanana, osapendekeka.
Zolemba zoyika mavavu achi German omwe adatumizidwa kunja
Musanayambe kukhazikitsa valavu, onetsetsani kuti valavu ikukwaniritsa zofunikira za mapangidwe ndi miyezo yoyenera.
Pogwira ndi kuyika ma valve, samalani ndi tokhala ndi mikwingwirima
Musanayike VALVE, MKATI WA PAPIPI AKUYENERA KUTSUTSIDWA KUCHOTSA zonyansa monga zitsulo zachitsulo kuti mpando wosindikizira wa valve usakhale ndi matupi akunja. Kuonjezera apo, valavu iyenera kuikidwa pamalo otsekedwa.
Ntchito yokweza ma valve. VALVU IDZAKWDZEDWA NDONDOMEKO PA MALO OMWE WOYANKHULA, NDIPO SADZAKWEDWERA KAPENA KUKOKEDWA PAMBUYO WABWINO.
Poika valavu, m'pofunika kudziwa ngati kayendedwe ka kayendedwe ka sing'anga, mawonekedwe oyika ndi malo a handwheel akugwirizana ndi malamulo.
Kuyika ma valve olumikizana ndi flanged
(1) Pamwamba pa valavu ndi mapaipi ayenera kukhala opanda zowonongeka, zokopa, ndi zina zotero, ndikukhala zoyera. Makamaka kugwiritsa ntchito ma gaskets achitsulo (gawo lozungulira kapena la octagonal), ma flange grooves ndi ma gaskets ayenera kukhala osasinthasintha,
Iyenera kuphimbidwa ndi chitsogozo chofiyira kuti zitsimikizire kuti kusindikiza kwake kuli bwino.
(2) Perpendicularity ya flange pamwamba pa chitoliro ndi mzere wapakati wa chitoliro ndi cholakwika cha dzenje la flange bolt ziyenera kukhala mkati mwa mtengo wololedwa. Vavu ndi mzere wapakati wa mapaipi ziyenera kukhala zofananira musanayike.
(3) Pogwirizanitsa ma flanges awiri, choyamba, nkhope yosindikizira ya flange ndi gasket iyenera kukanikizidwa mofanana, kuti zitsimikizire kuti flange imagwirizanitsidwa ndi kupsinjika komweko.
(4) Mukamangitsa mabawuti, gwiritsani ntchito sikelo yofanana ndi mtedza. Mukamagwiritsa ntchito kukakamiza kwamafuta ndi zida za pneumatic zomangirira, samalani kuti musapitirire ma torque omwe mwatchulidwa.
(5) Kumangirira kwa flange kuyenera kupeŵa mphamvu yosagwirizana, ndipo iyenera kumangirizidwa kuti ikhale yofanana ndi yogwirizana.
(6) Mukayika flange, onetsetsani kuti mabawuti onse ndi mtedza ndi zolimba komanso zofananira.
(7) Zida za bolts ndi mtedza ziyenera kukwaniritsa malamulo. Pambuyo kumangiriza, mutu wa bawuti uyenera kuwululidwa kuchokera ku nati awiri phula loyenera.
(8) Bolt ndi screw fastening, pofuna kupewa kugwedezeka komwe kumachitika chifukwa cha kumasula, kugwiritsa ntchito ma gaskets. Pofuna kupewa kumamatira pakati pa ulusi pa kutentha kwakukulu, ulusi uyenera kuphimbidwa ndi anti-adhesion agent (molybdenum disulfide) pakuyika.
(9) Kwa mavavu a kutentha kwambiri kuposa madigiri 300 Celsius, kutentha kumakwera, mabawuti olumikizirana ndi flange, mabawuti omangira chivundikiro cha mavavu, mabawuti osindikizira ndi kunyamula mabawuti otsekera ayenera kumangidwanso.
(10) Valavu yotsika yotsika imayikidwa mu chikhalidwe cha kutentha kwa mumlengalenga. Pogwiritsa ntchito, sing'anga ikadutsa, imakhala kutentha kochepa. Chifukwa mapangidwe kutentha kusiyana, flanges, gaskets, mabawuti ndi mtedza, etc., kuchepa, ndipo chifukwa zipangizo za mbali zimenezi si zofanana, liniya wawo kukula koyenera ndi osiyana, kupanga zosavuta kutayikira zinthu zachilengedwe. Kuchokera pazifukwa zosiyanasiyana, mukamangitsa ma bolts pakutentha kwamlengalenga, ndikofunikira kutengera torque yomwe imaganizira za kugunda kwa gawo lililonse pakutentha kotsika.