Ivalavu yamulyango: Ivalavu yamulyango nivalavu iibelesya mulyango (puleti lyamulyango) kweenda munzila iimvwi munzila. Chibelesegwa kapati mumapaipi aakwaandaanya aakati, nkokuti, kajalukide naakuti kajalwe. Kanjaanji, mavalvu aamulyango taali kabotu pe mukweendelezya kweenda kwamaanzi. Zilakonzya kubelesegwa kulizyoonse zyobile kupya kusyoonto akupya kupati, kweendelanya abwaanda bwavalvu.
Nokuba boobo, mavalvu aamulyango kanjikanji taabelesyegwi mumapayipi aatozya bulongo naakuti zintu zikozyenye.
Bubotu:
Kukazyigwa kwamaanzi kusyoonto.
Kuyandika nguzu ziche zyakujalula akujala.
ilakonzya kubelesegwa munzila zyakuzuza kwamabazu obile, ikuzumizya kuti akati-akati kweenda mumabazu oonse obile.
Kuti yajaluka, busena bwakujala tabukonzyi kubola akaambo kachibelesyo kweelanisigwa amavalvu aa globe.
Bupange buuba-uba anzila mbotu yakupanga.
Bulamfu bwabupange bupati.
Zibi:
Bupati bupati antoomwe abusena bwakubikkila buyandika.
Kuzwangana kupati akubola aakati kazyintu zyakujala muchiindi chakujalula akujala, ikapati aawo nokwapya kapati.
Mavalvu aamulyango kanjikanji ajisi zibeela zyobile zyakujala, zikonzya kuyungizya buyumuyumu mukubamba, kugaya, akubamba.
Chiindi chilamfu chakujula akujala.
Valve ya Butterfly: Ivalvu ya butterfly ni valve iibelesya chintu chakujala chiboneka mbuli disiki kuti izungaane kusika ku 90 degrees kujalula, kujala, akubamba kweenda kwamaanzi.
Bubotu:
Bupange buuba, bupati bupati, buuba, akubelesya zintu zisyoonto, zipa kuti ibeleke kabotu kumavalvu mapati.
Kufwambaana kujalula akujala kakunyina kukasya kweenda.
Ulakonzya kubamba zintu zijisi zintu ziyumu ziimvwi alimwi ulakonzya kubelesyegwa kuba zintu zijisi busi alimwi azyabulongo kweelana anguzu zyabusena bwakujala.
Chili kabotu kujalula, kujala, akubamba mumapayipi aakunjizya muuya akugwisya bulongo. Chibelesyegwa kapati mukupanga zintu zyabutale, makwebo maubauba, manguzu, anzila zyakupanga mafuta mumapaipi aamuwo anzila zyamaanzi.
Zibi:
Kubamba kweenda kwamaanzi kusyoonto; eelyo vvalavu noijalukide a 30%, mweelwe wamaanzi ulainda a 95%.
Tazyeelede kubelesyegwa mumapaipi aapya kapati alimwi aajisi nguzu kapati akaambo kakuceya kwabupange alimwi azintu zyakujala. Kanjaanji, chibeleka aawo mpeyo zili munsi aa 300°C a PN40 naa munsi.
Kuchita kabotu kwakujala kweelanisigwa ama ball valve ama globe valve, aboobo tazili kabotu pe kubelesyegwa muzintu ziyandika kujala zinji.
Ibbola lyaValavu: Ibbalavu lyabbola lizwa kupulagi, mpawo chijala chawo nchintu chizunguluka madigilii aali 90 kuzyungulukavvalavuchisiko kuti chikonzye kujalula akujala. Ibbola lyavalvu lilabelesyegwa kapati mumapayipi kujala, kwaabila, akusandula nzila yamaanzi. Mavalvu aamabbola ajisi zijazyo zilimbuli V aalo alakonzya kweendelezya kweenda kabotu.
Bubotu:
Kukazyigwa kusyoonto kwamaanzi (aafwaafwi kuba zero).
Kubelesya kusyomeka muzintu zibola alimwi amaanzi aatakwe nguzu zyakubila nkaambo tazinamatili pe muchiindi chakubeleka (kakwiina kusanzya).
Kuzuzikizya kujala koonse mukati kakusinikizyigwa akupya kwaandeene.
Kujalula akujala chakufwambaana, azintu zimwi zijisi chiindi chakujalula/kujala chifwiifwi a 0.05 kusikila ku 0.1 masekondi, ziluzi kubelesya minchina iibelesya minchina mumabbenci aakusunka kakunyina kujatikizyigwa muchiindi chakubeleka.
Kubikka biyo aawo mpaali kumunyinza kakuli chintu chakujala bbola.
Kujala kusyomeka kumabazu oonse obile aachibelesyo.
Kunyina kunyonyooka kwabusena bwakujala kuzwa kuzintu zifwambaana loko aawo nozijalukide naa kujalwa.
Bupange buli kabotu alimwi butakwe buyumuyumu, bupa kuti bube bupange bwamavuluvu buli kabotu kapati kuzibelesyo zyakumwaya zintu zitapya kapati.
Mubili wamavuluvu uukozyenye, ikapati mumubili wamavuluvu uujatikizyidwe, ulakonzya kuliyumya kukukatazyigwa kuzwa kumapaipi.
Chintu chakujala chilakonzya kuliyumya mukwiimpana kwakusinikizyigwa kupati muchiindi chakujala. Ma ball valve aajatikizyidwe kabotu alakonzya kuzikwa ansi, kuchitila kuti zibeela zyamukati zitanyonyooki, abuumi bwakubeleka bwamyaka iili 30, akupa kuti kazili kabotu mumapaipi aamafuta aamuwo.
Zibi:
Chintu chipati chakujala nkomo ya ball valve ni polytetrafluoroethylene (PTFE), eeyo iitakwe misamu iikola alimwi ilijisi bube buli mbuli kubula nguzu zyakuzwangana, kubeleka kabotu, kutachembaala, kweelela kupya kwachiindi chilamfu, akubeleka obotu loko.
Nokuba boobo, bube bwa PTFE, kubikkilizya abwaanda bwayo bupati, kulimvwa kutontola, akutontola kutali kabotu, ziyanda kuti zijazyo zyakukkala zyeendelane abube oobu. Aboobo, eelyo zintu zyakujala noziyuma, kusyomeka kwakujala kulanyonganizyigwa.
Kwiindawo, PTFE ilaa nguzu zyakukazya kupya kusyoonto alimwi ilakonzya kubelesyegwa buyo munsi aa 180°C. Kwiinda mukupya ooku, zintu zyakujala zilachembaala. Twalanga kubelesya kwachiindi chilamfu, kanjikanji tachibelesyegwi kwiinda 120°C.
Kuchita kwayo kweendelezya nkucheya kwiinda kwa valve ya globe, ikapati ma valve aamuwo (naa ma valve aamagesi).
Valve ya Globe: Chaamba valve aawo chijala (valve disc) nkoyeenda aakati kachibbula. Kusiyana kwamulyango wachibbula kweendelana akweenda kwa valve disc. Akaambo kakufwambaana kwakujalula akujala kwamusyobo ooyu wavalvu akubeleka kwayo kusyomeka kwakujala, antoomwe akujatana aakati kakusanduka kwamulyango wachuuno akweenda kwa valve disc, nchintu chibotu loko mukweendelezya kweenda. Aboobo, musyobo ooyu wa vvalavu ulabelesyegwa kujala, kweendelezya, akulesya muya.
Bubotu:
Muchiindi chakujalula akujala, manguzu aakuzwangana aakati ka valve disiki abusena bwakujala bwa valve masyoonto kwiinda aa gate valve, akupa kuti itabi anguzu zyakuzwa.
Bulamfu bwakujula buli buyo 1/4 yamugwagwa wachuuno, akupa kuti ube muniini kwiinda vvalavu yamulyango.
Kanjikanji, kuli buyo busena bomwe bwakujala amubili wa valve a disiki ya valve, zipa kuti chibaubile kupanga akubambulula.
Chili aanguzu zyakukazya kupya nkaambo kanjikanji kusanganizigwa kwa asbestos a graphite. Mavalvu aa globe alabelesyegwa kapati kumavalvu aamuwo.
Zibi:
Akaambo kakucinca kwanzila yakuzuza kwamukati kwiinda muvalvu, kukazyigwa kwakuzuza kwa globe valve kulisumpukide kwiinda kwamisyobo imwi yamavalvu.
Akaambo kakuzungaana kwachiindi chilamfu, kufwambaana kwakujula nkucheya kweelanisigwa a ball valve.
Ipulagi: Chaamba vvalavu iizungaana iijisi chintu chakujala muchikozyano cha pulagi ya silinda naakuti kkoni. Ipulagi ya valve iili a plug valve ilazungaanisigwa madigilii aali 90 kuti iswaangane naa kwaandaanya nzila iili amubili wa valve, kuzuzikizya kujalulwa naa kujalwa kwa valve. Bupange bwapulagi ya valve bulakonzya kuba mbuli bbola naa mbuli kkoni. Njiisyo yayo ilikozyene aya ball valve, eeyo yakapangwa kwiinda mukubelesya plug valve alimwi ibelesyegwa kapati mumakkampani aapanga mafuta alimwi amumakkampani aapanga mafuta.
Ivalavu yakukwabilila: Ibeleka mbuli chintu chikwabilila kuzwa kukutontola kupati mumigoti, zibelesyo, naakuti mapaipi. Eelyo muya mukati kachibelesyo, muchibbeeke, naakuti mupayipi nuwiinda mweelwe uuzumizyidwe, vvalavu ilajula buya kuti igwisye nguzu zyoonse, akulesya kuyungizigwa kwamuwo. Eelyo muya nuwasika aawo mpokugolela, vvalavu yeelede kulijala mpawo-mpawo kuchitila kutabilila kubeleka kabotu kwazibelesyo, chibbeeke, naakuti payipi.
Chikwabilizyo chaBusi: Mukweenzya busi, muya uusinkilidwe, azimwi zintu, maanzi aajisi busi alapangwa. Kuchitila kuti kube kubeleka obotu akukwabililwa kwachibelesyo, nkuko kuyandika kugwisigwa muchiindi cheelede zintu zitagwasyi alimwi zikonzya kuleta ntenda kuchitila kuti chibelesyo chizumanane kubelesegwa. Chili amilimu iitobela: (1) Chilakonzya kufwambaana kugwisya maanzi aazwa. (2) Chikwabilila busi kuti butazwi. (3) chigwisya.
Ivalvu iigwisya muya: Mvalavu iigwisya muya wakunjilila kusika aawo mpokuyandika kwiinda mukuchibamba mpawo iyeeme anguzu zyachintu eecho kuti muya uuzwa uzumanane kuchita obotu.
Langa Valve: Alimwi ilizyibidwe mbuli vvalavu iitapiluki, ntalisyo yakujokela musule, vvalavu yakujokela musule, naa vvalavu iitola nzila yomwe. Aaya mavalvu alajulwa akujalwa alikke anguzu zizwa mukweenda kwachintu chili akati-akati mumupayipi, akupa kuti abe mbuli mavalvu aalikke. Mavalvu aakulanga-langa abelesyegwa mumapayipi alimwi milimo yawo mipati njakulesya maanzi kuti ajokele musyule, kukwabilila kujokela musyule kwamapompi alimwi ama injini aakweenzya, alimwi akugwisya zintu zyamukati. Mavalvu aakulanga-langa alakonzya kubelesegwa kumapayipi aagwasya zibelesyo eezyo muya uukonzya kutanta kwiinda muya uuzwa mumubili. Zilakonzya kwaandaanizyigwa muzibeela zyakuzunguluka (zizyunguluka kweendelanya aakati ka nguzu zyakukwela) antoomwe azyakunyamuna (zyeenda kweendelana a axis).
Chiindi chakutumizya: Jun-03-2023
