Mfundo 5 Zofunika Kukumbukira za kukhazikitsa ma valve.

Mfundo 5 Zofunika Kukumbukira za kukhazikitsa ma valve. 1 Mayendedwe ndi malo Ma valve ambiri amawongolera Mwachitsanzo, valavu ya globe, valve throttle valve, valve kuchepetsa kupanikizika, valve valve, etc., ngati itayikidwa kumbuyo, idzakhudza momwe ntchito ikugwiritsidwira ntchito ndi moyo (monga throttle valve), kapena ayi. gwirani ntchito konse (monga valavu yochepetsera kuthamanga), komanso ngakhale kuyambitsa ngozi (monga valavu yoyendera). Mavavu ambiri okhala ndi zolembera pathupi. 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. Malo oyika ma valve ayenera kukhala osavuta kugwiritsa ntchito Ngakhale kukhazikitsa kuli kovuta kwakanthawi, ndikofunikira kuganizira ntchito yayitali ya wogwiritsa ntchitoyo. Kuwongolera bwino kwa valavu ndi kuyika pachifuwa (nthawi zambiri 1.2 mita kuchokera pamalo opangira), kotero kuti kutsegula ndi kutseka kwa valavu 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 Ntchito Yomanga Kuyika ndi kumanga kuyenera kusamala, musamenye valavu yopangidwa ndi zinthu zowonongeka. Musanakhazikitse Mitundu yonse ya valve ndi ndondomeko ziyenera kufufuzidwa mosamala kuti zigwirizane ndi zofunikira za mapangidwe. (Fufuzani ngati ANGAGWIRITSE NTCHITO ZOFUNIKA ZOFUNIKA molingana ndi chitsanzo cha valve ndi malangizo a fakitale, ndikuyesa kuyesa kwa madzi kapena mpweya ngati kuli kofunikira.) Kuwonjezera apo, ziyenera kufufuzidwanso ngati kulongedzako kuli bwino, ngati bolt ya gland ili nayo. ndalama zokwanira zosinthira, ndikuwona ngati tsinde ndi chimbale zili zomveka, ngati pali chokhazikika komanso chopindika. Malo osindikizira a disc valve ayenera kutsekedwa mwamphamvu, ndipo khalidwe la ulusi liyenera kufufuzidwa kuti likhale ndi ma valve opangidwa ndi ulusi. Mavavu osayenerera SADZAIWIKIDWA ndipo adzaikidwa pawokha kapena kulembedwa chizindikiro. *** Zinyalala mu valavu. Kuyikapo Pamene MUKUZA VALVU, CHINGMBO CHISINGAKHALAKIKE KU CHANJA KAPENA 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 ena ayeneranso kukhala ndi chitetezo chakunja, chomwe ndi kuteteza kutentha ndi kuzizira. Choyikapo chotchinga nthawi zina chimasakanizidwa 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.; Zida zoziziritsa kukhosi, perlite, thovu, pulasitiki ndi zina zotero. 4 Bypass ndi mita Ma valve ena, kuphatikiza pazida zodzitetezera, 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 Kulongedza m'malo valavu yamagetsi, kulongedza kwina sikunakhale kwabwino, ndipo ena sagwirizana 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. Ndikofunikira kukumbukira mfundo izi za kukhazikitsa ma valve! 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 kuchepetsa kuthamanga, valve valve, etc. valavu), kapena osagwira ntchito konse (monga valavu yochepetsera kuthamanga), komanso kuyambitsa ngozi (monga valavu yoyang'ana). 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 ndi kumanga ma valve 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 kuzizira. Choyikapo chotchinga nthawi zina chimasakanizidwa 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.; Zida zoziziritsa kukhosi, perlite, thovu, pulasitiki ndi zina zotero. (4) Bypass ndi zida Ma valve ena, kuphatikiza pazida zodzitetezera, 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 wa Stock valve, kulongedza kwina sikunakhale kwabwino, ndipo ena sagwirizana ndi kugwiritsa ntchito zofalitsa, zomwe zimafunika 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.