Mavalvu aamulyangolubomavwili aabutterflyzibelesyegwa mbuli ma switchi kweendelezya mweelwe wamaanzi mumapaipi. Masimpe, kuchili nzila zyakusala mavalvu aa butterfly amavalvu aamulyango.
Munzila yamapayipi aameenda, kuchitila kuti bulongo buvwumbidwe mumipaipi buceye, bupati bwamupayipi mupati buli abutterfly valve, mpawo kuti bulongo buvwumbidwe kabutali bupati, kosola kusala gate valve, pesi muulo wa gate valve uukozyenye ulisumpukide kwiinda muulo wa butterfly valve. Kujatikizya munyinza wabulemu, busena buli boonse bweelede kulanga-langwa kweendelana abukkale. Kuzwa mukulanga kubelesya kwamyaka iili kkumi yainda, kwaalilwa kwa vvalavu ya butterfly kulisumpukide kwiinda kwavvalavu yamulyango, aboobo nkubotu kubikkila maanu kukuyungizya busena bwakubelesya vvalavu yamulyango kuti bukkale kabuzumizya.
Muminyaka misyoonto yainda, basikupanga mavalvu banji bamucisi bakapanga akwiiya mavalvu aamulyango uuteteete, aayo ajisi bube butobela kwiinda mavalvu aakaindi aajisi zibeela zyobile:
Chivvalavumubili abbooni lyamulyango wamulyango uuteteete zyakabambwa anzila yakujala iiluzi, eeyo yakapangwa achiindi chomwe, tiiyakabambilwa minchina, alimwi taibelesyi zikobela zyamukuba zyakujala, ikukwabilila zintu zitakwe nsimbi.
Kunyina mpako munsi lyavvalavu yamulyango uuteteete, kunyina kuyoboloka kwabulongo, antoomwe akukachilwa kwavvalavu yamulyangokujalula akujala kuli munsi.
Ipuleti ya valve iijisi chijazyo chiteteete ilikozyenye mubupati mpawo ilakonzya kuchincha.
Aboobo, vvalavu yamulyango uuteteete uyooba nzila eeyo basikupanga maanzi njobakonzya kutambula. Kwalino, bupati bwa vvalavu ya soft seal gate yakabambwa muChina mbu 1500mm, asi bupati bwabasikupanga banji buli akati ka 80-300mm, mpo kuchili mapenzi miingi munzila yakupanga zintu mukati. Chintu chipati cha soft seal gate valve ninzila ya raba, mpawo ziyandika zyakupanga zya raba zilisumpukide, alimwi tabali boonse basikupanga bakunze bakonzya kuzizuzikizya, mpawo kanjikanji zilaulwa akubunganizigwa kuzwa kufakitoli kakuli kabotu.
Ibbuloki lya copper nut lya domestic soft sealvvalavu yamulyangoilibikkidwe akulengelezyegwa atala aachikwabilizyo cha raba, mbuli bupange bwachikwabilizyo chamulyango, mpawo chivwumbyo chachikwabilizyo chachikwabilizyo nchuubauba kugwisigwa akaambo kakuzwangana kwa bbuloki lya nut. Kuchikwabilizyo chamulyango uuteteete wakkampani yakunze, bbuloki lya copper nut lilabikwa mubbokesi lya raba kuti libe chintu choonse, eecho chikonzya kuzunda tumpenda twaambwa atala aawa, pesi kujatana kwachivwumbyo cha valve amubili wa valve kulisumpukide.
Nokuba boobo, notujula akujala vvalavu lyamulyango uuteteete, talyeelede kujalwa pe, kufwumbwa buyo kuti nzila yakulesya maanzi yazuzikizigwa, ikuti naa tiikwaba boobo tacili cuubauba kujalula naa kugwisya chivwumbyo cha raba. Sikupanga mavwili, mukusunka kwakusinikizyigwa kwamavwili, kubelesya torque wrench kweendelezya mweelwe wakujala, mbuli kkampani yamaanzi basikubelesya mavwili abalo beelede kutobela nzila eeyi yakujalula akujala.
Ino nkwiindana nzi aakati kakubelesyamavwili aabutterflylubomavalvu aamulyango?
Kweelana amulimu akubelesegwa kwa vvalavu yamulyango a vvalavu ya butterfly, kukazyigwa kweenda kwa vvalavu yamulyango nkusyoonto, mulimo wakujala uli kabotu, nkaambo nzila yakuzuza kwa vvalavu yamulyango a akati-akati ili mumbali, ikuti naa vvalavu yamulyango tiili mubusena bwa vvalavu yamulyango, akati-kati kavwundauka pulapu lya vvalavu lipa kuti vvalavu izungaane, mpawo ilakonzya kunyonyooka chijazyo chavalvu.
Ivalvu yabutterfly, alimwi yiitwa kuti flap valve, ninzila nguba yakubamba valve, eeyo iikonzya kubelesegwa kweendelezya kujala/kuzima kwapayipi lyamaanzi masyoonto medium butterfly valve yaamba cibeela chakujala (disiki naa butterfly plate) mbuli disiki, iizungaana kuzinguluka nkomo yavalvu kuti ijalulwe akujala, ivalvu ilakonzya kubelesyegwa kweendelezya kweenda kwa valve zyamaanzi zilimbuli muuya, maanzi, busi, zintu zisiyene-siyene zikonzya kubola, matope, mafuta, nsimbi zyamaanzi azintu zipa nguzu zya radioactive. Ikapati chibeleka mulimo wakugela akulesya mupayipi. Cibeela chakujalula akujala vvalavu yabutterfly nchintu chiboneka mbuli disiki, eeyo iizungaana kuzyunguluka ntalisyo yayo mumubili wavalvu, kuchitila kuti izuzikizye makanze aakujalula akujala naa kubambulula.
Ipuleti lyamubala weendelezegwa achisiko cha valve, mpo kuti lyasanduka 90°, lilakonzya kumanizya kujalula akujala. Kwiinda mukuchincha nzila yakuleya kwa bbatterfly, mweelwe wamaanzi aazwa mukati ulakonzya kweendelezyegwa.
Ziimo zyakubeleka anzila zyakubelesya:Valve ya Butterflyileelela kweenzya mapaipi aasiyene-siyene aamaanzi aakonzya kubola alimwi aataboli mumabambe aanjiniya mbuli zitofu, muya wamalasha, muya wacilengwaleza, muya wamafuta aajisi maanzi, muya wamunzi, muya uupya alimwi uutontola, kusungulula kwamakemikalu alimwi akupanga manguzu aakukwabilila busena, kuyobola maanzi mumayake alimwi akugusya maanzi, azimwi, alimwi ilabelesyegwa kweendelezya akulesya kweenda kwamaanzi.
Ivalavu yamulyango (valavu yamulyango) nchintu chijalula akujala, nzila kweenda kwamulyango iliimpene anzila yamaanzi, ivalvu yamulyango ilakonzya buyo kujalulwa akujalwa, kutamvwana kwamulyango kuliindene, kanjikanji 5°, aawo kupya kwaakati-kati kakutali atala, nku 2°2′. Kuti tusumpule kupanga kwayo akuchita kuti kutabi kusiyana kwabusena bwakujala mumulimo wakubamba, musyobo ooyu wamukowa wiitwa kuti mukowa uutegwa elastic ram.
Eelyovvalavu yamulyangoyajalilidwe, busena bwakujala bulakonzya buyo kusyoma munguzu zyaakati-kati kuti bujale, nkokuti, kusyoma buyo munguzu zyaakati-kati kuti businikizye busena bwakujala bwambelele kuchibaka cha valve kulubazu lumwi kuchitila kuti busena bwakujala bujalwe, oobo bulikwabilila. Bunji bwamavwili aamulyango alajalilidwe changuzu, nkokuti, aawo mavwili naajalwa, ntambo yeelede kusinikizyigwa kuchibbula chavalvu anguzu zyaanze kuchitila kuti busena bwakujala bujatikizyigwe.
Nzila yakweenda: Ibbwe lyamulyango lyamulyango lyamulyango lilaunka mumuzila uululamika amusako wamulyango, ooyo alimwi wiitwa kuti mulyango wamulyango uujalukide. Kanjikanji kuli ntambo ya trapezoidal amusako wakunyamuna, kwiinda mu nsingo iili atala aa valve antoomwe a guide groove amubili wa valve, kweendeenda kwakuzunguluka kusanduka kuba kweenda kwamulongo, nkokuti, nguzu zyakubeleka zilasanduka kuba nguzu zyakubeleka. Eelyo vvalavu nolijulwa, eelyo bulamfu bwakunyamuna bwamunyama nobuli mbuli 1:1 ziindi zyabwamba bwa vvalavu, kweenda kwamaanzi takusinkililwi pe, pesi busena oobu tabukonzyi kulanganyigwa muchiindi chakubeleka. Mukubelesegwa kwini, chililembedwe amutwe wamusamu, nkokuti, busena butakonzyi kujalulwa, mbuli busena bwayo bujalukide. Kuti tukonzye kuziba kujala kwakusanduka kwakupya, kanjikanji kujalulwa kusika aawo mpaali atala, mpawo kupilusyigwa ku 1/2-1 turn mbuli busena bwa valve iijalukide. Aboobo, busena bwa valve bujalukide boonse bulajanwa abusena bwa ram (nkokuti stroke). Imwi ntambo yamulyango ili aamulyango, mpawo vwili lyamaanza lilazungaana kuchitila kuti ntambo yamulyango izungaane, mpawo bbazu lyamulyango lilasumpulwa, eeli vvalavu liitwa kuti vvalavu lyamulyango lyamulyango uuzunguluka naakuti vvalavu lyamulyango wamulyango uusiya.
Chiindi chakutumizya: Aug-22-2024
