Thevalavundi zida zofala kwambiri m'makampani opanga mankhwala.Zikuwoneka zosavuta kukhazikitsa valavu, koma ngati sizikuchitidwa molingana ndi teknoloji yoyenera, zidzayambitsa ngozi zachitetezo.Lero ndikufuna kugawana zomwe ndakumana nazo komanso chidziwitso chokhudzakukhazikitsa ma valve.
Taboo 1
Kuyesa kwa Hydrostatic kumachitika pansi pa kutentha koyipa nthawi yozizira.
Chotsatira: chifukwa cha madzi kuthamanga mayeso chubu mwamsanga mazira, kuti chubu ataundana zoipa.
Miyezo: yesani kuyesa kuthamanga kwa madzi musanagwiritse ntchito nthawi yachisanu, ndipo pambuyo poyezetsa kuthamanga, madziwo ayenera kuwomberedwa bwino, makamaka madzi omwe ali mkati.valavuziyenera kuchotsedwa muukonde, apo ayivalavuichita dzimbiri, kapena kuzizira mng'alu.
Kuyeza kuthamanga kwa madzi kuyenera kuchitidwa m'nyengo yozizira, ndipo madzi ayenera kuwombedwa bwino pambuyo poyesa kuthamanga.
Tabu 2
Dongosolo la mapaipilo silinasunthidwe mosamala lisanamalizidwe, ndipo kuchuluka kwa mayendedwe ndi liwiro silingathe kukwaniritsa zofunikira pakuwombetsa mapaipi.Ngakhale madzi kuthamanga mphamvu kuyezetsa ngalande m'malo flushing.
Zotsatira zake: Kukoma kwamadzi sikungakwaniritse zofunikira pakugwiritsa ntchito mapaipi, nthawi zambiri kumayambitsa kuchepetsedwa kwa gawo la mapaipi kapena kutsekeka.
Miyeso: kusamba ndi pazipita anapereka otaya mlingo wa madzi mu dongosolo kapena otaya mlingo sayenera zosakwana 3m/s.Utoto ndi kuwonekera kwa chotulutsa chotuluka kuyenera kukhala kogwirizana ndi mawonekedwe amadzi olowera.
Tabu 3
Zonyansa, madzi amvula, mapaipi a condensate sachita mayeso otsekedwa amadzi adzabisika.
Zotsatira zake: Zitha kuyambitsa kutayikira kwamadzi komanso kutayika kwa ogwiritsa ntchito.
Miyezo: Ntchito yoyesa madzi otsekedwa iyenera kukhala yogwirizana ndi kuvomereza koyendera.Mobisa m'manda, inaimitsidwa denga, chitoliro ndi zina zonyansa zobisika, madzi amvula, condensed madzi chitoliro kuonetsetsa kuti palibe kutayikira.
Taboo 4
Poyesa mphamvu ya mphamvu ya madzi ndi kuyesa kulimba kwa mapaipi, kusintha kokha kwa mtengo wa kuthamanga ndi kuchuluka kwa madzi kumawonedwa, ndipo kuyang'anira kutayikira sikokwanira.
Chotsatira: Kutayikira kunachitika pambuyo pa ntchito ya payipi dongosolo, zimakhudza ntchito yachibadwa.
Miyezo: pamene dongosolo la mapaipi likuyesedwa malinga ndi zofunikira za mapangidwe ndi zomangamanga, kuwonjezera pa kujambula mtengo wa kuthamanga kapena kusintha kwa madzi mkati mwa nthawi yotchulidwa, ndikofunikira kwambiri kuyang'ana mosamala ngati pali kutayikira.
Taboo 5
Valve ya butterflyflanges ndi wambavalavuflanges.
Zotsatira:valavu ya butterflyflange ndi wambavalavuflange kukula si yemweyo, ena awiri flange ndi yaing'ono, ndivalavu ya butterflydisc ndi yayikulu, zomwe zimapangitsa kuti zisatseguke kapena zovuta kuti zitsegule kuwonongeka kwa valve.
Miyezo: molingana ndi kukula kwenikweni kwavalavu ya butterflyflange processing flange.
Taboo 6
Palibe mabowo osungidwa ndi magawo ophatikizidwa pomanga nyumba yomanga, kapena kukula kwa mabowo osungidwa ndi ang'onoang'ono ndipo zigawo zophatikizidwa sizimalembedwa.
Zotsatira zake: pomanga ntchito yotenthetsera ndi kuyeretsa, sungani nyumbayo, kapena kudula zitsulo zolimba, zomwe zimakhudza chitetezo cha nyumbayo.
Miyezo: odziwa bwino zojambula zomanga za Kutentha ndi ukhondo waumisiri, malinga ndi zosowa za payipi ndi unsembe wothandizira hanger, yesetsani kugwirizana kwambiri pomanga mabowo osungidwa ndi magawo ophatikizidwa a nyumbayo, makamaka potengera zofunikira za mapangidwe ndi zomangamanga.
Tabu 7
Chitolirocho chikawotchedwa, pakamwa molakwika pa chitoliro chotsutsanacho sichili pa Central Line, chitoliro chosiyana sichisiya mipata, chitoliro cholimba cha khoma sichimawombera poyambira, ndipo m'lifupi ndi kutalika kwa weld sikukwaniritsa zofunikira. ya code yomanga.
Chotsatira: chitoliro cholakwika pakamwa si pakati mzere mwachindunji amakhudza kuwotcherera khalidwe ndi maganizo khalidwe.Palibe kusiyana pakati pa awiriwo, wandiweyani khoma chitoliro si fosholo poyambira, m'lifupi ndi kutalika kwa weld si kukwaniritsa zofunika kuwotcherera amafuna mphamvu.
Miyeso: pambuyo kuwotcherera chitoliro chikufanana, chitoliro sangakhale cholakwika pakamwa, kwa mzere pakati;Wothandizirayo ayenera kusiya kusiyana;Chitoliro cholimba cha khoma kuti chifolere poyambira.Komanso, m'lifupi ndi kutalika kwa weld adzakhala welded mogwirizana ndi zofunikira.
Tabu 8
Chitolirocho chimakwiriridwa mwachindunji munthaka yachisanu ndi nthaka yosasamalidwa bwino, mtunda ndi malo a pier za chitoliro ndi zosayenera, ndipo ngakhale mawonekedwe a njerwa youma amatengedwa.
Zotsatira zake: Paipiyi idawonongeka panthawi yotsekera kumbuyo chifukwa cha chithandizo chosakhazikika, zomwe zidapangitsa kukonzanso ndikukonzanso.
Miyezo: payipi sayenera kukwiriridwa m'nthaka yowuma komanso dothi lotayirira, malo otsetsereka amayenera kukwaniritsa zofunikira za malamulo omanga, padiyo iyenera kukhala yolimba, makamaka mawonekedwe a mapaipi, sayenera kumeta ubweya.Pier yothandizira njerwa kuti agwiritse ntchito zomangira matope a simenti, onetsetsani kukhulupirika, kulimba.
Tabu 9
Maboti okulitsa omwe amagwiritsidwa ntchito pokonza zothandizira mapaipi ndi abwino kwambiri, mabowo a mabawuti okulirapo ndi akulu kwambiri, kapena mabawuti okulitsa amayikidwa pamakoma a njerwa kapena makoma opepuka.
Zotsatira zake: chitoliro cha chitoliro chimamasuka, chitoliro chimawonongeka, ngakhale kugwa.
Miyeso: Bawuti yowonjezera iyenera kusankhidwa zinthu zoyenerera, ndipo kuyesa kwachitsanzo kuyenera kuchitidwa ngati kuli kofunikira.Kutsegula kwa bawuti yowonjezera sikuyenera kukhala kwakukulu kuposa kukula kwakunja kwa bawuti yowonjezera 2mm, ndipo bawuti yowonjezera iyenera kugwiritsidwa ntchito pamapangidwe a konkire.
Taboo 10
Flange ndi mphamvu ya gasket yolumikizira mapaipi sikokwanira, bawuti yolumikizira ndi yayifupi kapena yopyapyala m'mimba mwake.Chitoliro chotenthetsera chimagwiritsa ntchito mphira, chitoliro chamadzi ozizira chimagwiritsa ntchito thabwa iwiri kapena chopendekera, liner ya flange yotulukira mu chitoliro.
Zotsatira: olowa flange si zolimba, ngakhale kuwonongeka, kutayikira chodabwitsa.Flange liner imalowa mu chitoliro ndikuwonjezera kukana kwamadzi.
Miyezo: ma flanges ndi ma gaskets a mapaipi ayenera kukwaniritsa zofunikira pakupanga kukakamiza kwa mapaipi.Kwa ma gaskets a flange otenthetsera ndi mapaipi operekera madzi otentha, ma gaskets a mphira a asbestos ayenera kugwiritsidwa ntchito;Gaskets mphira ayenera kugwiritsidwa ntchito flange gaskets madzi ndi mipope ngalande.Flange gasket sayenera kutulukira mu chitoliro, bwalo lake lakunja kwa bowo la flange ndiloyenera.Palibe bevel pad kapena ma gaskets angapo omwe aziyikidwa pakati pa flange.M'mimba mwake wa bawuti wolumikiza flange uyenera kukhala wosakwana 2mm kuposa pobowola flange, ndipo kutalika kwa ndodo yoteteza nati kuyenera kukhala 1/2 ya makulidwe a mtedza.
Nthawi yotumiza: Sep-03-2021