Butterfly mavharuvhu ikota-turn flow control midziyo inoshandisa simbi disc inotenderera ichitenderedza tsinde axis. Iwo anokurumidza kuita kuyerera kuyerera mavharuvhu anobvumira 90 madhigirii ekutenderera kufamba kubva kuvhurika zvakazara kusvika kwakavharika nzvimbo.
Kana iyo diski iine perpendicular kune centreline yepombi, valve iri munzvimbo yakavharwa.Apo diski inofananidzwa nechepakati pepombi, valve ichave yakazaruka zvakakwana (kubvumira huwandu hwemvura inoyerera) . control mechanism (disk) inenge yakaenzana nehupamhi hwemukati wepombi iri pedyo.
Aya mavharuvhu anouya muhukuru hwakasiyana uye magadzirirwo anotarisisa mashandiro avo mumaindasitiri maitiro ekushandisa; utsanana vharafu kushandiswa; mabasa emoto; kudziyisa, mhepo, uye air conditioning (HVAC) masisitimu; uye slurries.Broadly kutaura, butterfly mavharuvhu anokosha pakugadzirisa kuyerera uye kuyerera kwega.
Kufamba kwedhisiki kunotanga, kunonotsa kana kumisa kuyerera kwemvura.Zvishandiso zvinoda kunyatsojeka kwepamusoro zvinoenderana nemavharuvhu e butterfly anotarisisa mamiriro epombi, kuvhura kana kuvhara vharavha sezvinodiwa kuchengetedza kuyerera kwakafanana.Mavharuvhu ebutterfly anoshandiswa pakuyerera imwe yeanotevera maitiro ekuyerera:
• Pedyo nemutsara - chiyero chekuyerera chinoenderana neangular motion ye disc.Somuenzaniso, apo diski iri 40% yakazaruka, kuyerera kuri 40% yepamusoro.Ichi chimiro chekuyerera chinowanzoonekwa mukushanda kwepamusoro butterfly valves.
• Kukurumidza kuzarura - Ichi chimiro chekuyerera chinoratidzwa kana uchishandisa resilient seated butterfly valves.Kuyerera kwemvura kunowedzera zvakanyanya apo disc inofamba kubva panzvimbo yakavharwa.Sezvo valve inosvika panzvimbo yakazaruka zvakakwana, kuyerera kunodonha zvishoma nezvishoma nekuchinja kuduku.
• Flow Isolation - Butterfly valves inogona kupa pa / off fluid service.Kuyerera kwega kunodiwa chero nguva imwe nzvimbo yepiping system inoda kugadziriswa.
Butterfly mavharuvhu akakodzera kushandiswa kwakasiyana nekuda kwekureruka kwekugadzira uye kukurumidza kushanda.Soft-seated butterfly mavharuvhu akanakira kuderera kwekushisa, kuderera kwekumanikidza kushandiswa, nepo simbi-yakagara butterfly mavharuvhu ane yakanaka yekuisa chisimbiso pakubata yakaoma mvura mamiriro.Iyi nzira inoshanda. pa tembiricha yepamusoro uye kumanikidzwa uye inofambisa viscous kana corrosive fluid.Zvakanakira zveshavishavi mavharuvhu zvinosanganisira:
• Mavharuvhu eButterfly anoshandisa madhisiki esimbi matete senzira yekudzora kuyerera. Madhisiki madiki uye anotora nzvimbo shoma, asi akasimba zvakakwana kuti agadzirise mafambiro emvura. Aya mavharuvhu ane muviri wakabatana unoaita akakodzera kushandiswa. mumapombi epombi munzvimbo dzakamanikana.Mapaipi makuru-dhayamita anoda mavharuvhu makuru achishandisa zvinhu zvakawanda zvekugadzira, kuwedzera mari.Ivharuvhu yeshavishavi ichave isingadhuri pane vharafu yebhora yehukuru hwakafanana nekuti inodya zvinhu zvishoma kugadzira.
• Kuiswa Chisimbiso Nekukurumidza uye Kunobudirira - Mavharuvhu eButterfly anopa chisimbiso chinokurumidza pa actuation, zvichiita kuti zvive zvakanaka kune zvakanyanyisa kuyerera kwekuyerera. ichapa chisimbiso chakakwana chekushandiswa kwepasi - kusvika ku 250 pounds per square inch (psi) .Ivhavha yekaviri inogadzirisa inopa chisimbiso chakanakisisa chemaitiro kusvika ku 1,440 psi.Mavharuvhu matatu ekugadzirisa anopa chisimbiso chekushandiswa kwekuyerera pamusoro pe1,440 psi.
• Kuderedza Kuderera Kwekudonha uye Kudzora Kwepamusoro - Mavharuvhu eButterfly ane kuderera kwepasi pasinei nokuti diski inogara iripo mumvura. mvura yekudzosa simba nekukurumidza mushure mekunge yabuda muvharuvhu.
• Mavharuvhu eButterfly ane zvikamu zvishoma zvemukati. Haana homwe anogona kuteya zvinwiwa kana marara, saka anoda kupindira kushoma kwekugadzirisa.Kuisa kwacho kwakangoreruka sezvavanoda kusungirira pakati pepombi flanges. senge welding inodiwa.
• Kushanda Zviri Nyore - Nekuda kwekukura kwadzo uye kureruka, mavharuvhu eshavishavi anoda torque yakaderera kuti ashande.Madhisiki esimbi matete anoshandisa simba shoma kuti akunde kurwiswa kwemvura.Mavharuvhu eButterfly ari nyore kugadzira nekuti madhisiki madiki anogona ipai torque yakakwana yekushanda kwavo.Izvi zvinoshandura kuva mari shoma yekushanda - zviduku zvinoshandisa simba zvishoma uye zvinodhura zvishoma kuwedzera kune valve.
• Butterfly valves inokonzerwa ne cavitation uye yakavharidzirwa kuyerera - munzvimbo yakazaruka, valve haina kupa chivharo chakazara.Kuvapo kwe diski mumugwagwa wekuyerera kwemvura kunowedzera kuumbwa kwemarara kumativi evhavha, kuwedzera kukwanisa kwe cavitation. Mavharuvhu ebhora ndiyo imwe nzira yekushandisa fluid inoda madoko akazara.
• Kukurumidza kuora muvhitamini yemvura inoyerera - mvura inoyerera mavharuvhu e butterfly paanenge achiyerera nemaari.Nekufamba kwenguva, madhisiki anoderera uye haachakwanise kupa chisimbiso.Kuora kunenge kwakakwira kana uchibata viscous fluid services.Gedhi nemavharuvhu ebhora ane ngura iri nani kuramba kupfuura butterfly mavharuvhu.
• Haikodzeri kudzvinyirira kwepamusoro - vheji inofanira kungoshandiswa chete pakuputika mumhepo yakadzika, inogumira kusvika ku30 degrees kusvika ku80 degrees yekuvhura. Globe valves ine zviri nani throttling simba kupfuura butterfly valves.
Ivhavha inoputika munzvimbo yakazaruka zvakakwana inodzivirira kucheneswa kwegadziriro uye inodzivirira nguruve yemutsara ine butterfly valve.
The kugadzwa chinzvimbo shavishavi vharafu kazhinji pakati flanges.Butterfly mavharuvhu anofanira kuiswa kanenge mana kusvika matanhatu pombi diameters kubva discharge nozzles, gokora, kana mapazi kuderedza migumisiro nyonganyonga.
Usati waiswa, chenesa mapaipi uye tarisa flanges kuitira kutsetseka / flatness.Iva nechokwadi chokuti mapaipi akaenzana.Paunenge uchiisa valve, chengetedza diski munzvimbo yakazaruka zvishoma.Flanges inogona kuwedzerwa kuti irege kukuvadza panzvimbo yechigaro.Shandisa pilot. maburi kana zvipfuramabwe zvakatenderedza muviri wevharuvhu paunenge uchisimudza kana kufambisa vharafu.Rega kusimudza vharafu pachibatiso kana mushandisi wayo.
Gadzirisa vharuvhu nebhaudhi rekuisa yepombi iri pedyo.Simbisa mabhaudhi nemaoko, wobva washandisa chipanera che torque kuti usimbise mabhaudhi zvishoma nezvishoma uye zvakaenzana, uchifungidzira kujeka pakati pavo neflange.Shandisa vharafu kunzvimbo yakazaruka zvakakwana uye shandisa. chipanera che torque kuti usimbise mabhaudhi kuti utarise kana kunetsana pamabhaudhi.
Kugadziriswa kwemavharuvhu kunosanganisira mafuta emagetsi emagetsi, kuongorora uye kugadziriswa kwemagetsi.Mavharuvhu anoda periodic lubrication anosanganisira mafittings emafuta.Inokwana lithium-based grease inofanira kuiswa panguva dzinokurudzirwa kuderedza ngura nekuora.
Zvakakoshawo kugara uchiongorora actuator kuti uone chero zviratidzo zvekupfeka kana kusununguka kwemagetsi, pneumatic kana hydraulic connections zvinogona kukanganisa kushanda kwevhavha.
Mukuwedzera, mushandisi anofanira kuchenesa zvikamu zvose zvevhavhavhavhavhavha nesilicone-based lubricant.Chigaro chinofanira kuongororwa kune chero zviratidzo zvekupfeka uye kuchinjwa kana zvichidiwa.Butterfly valve discs inoshandiswa mumashandisi akaoma akadai sekushanda kwemhepo yakamanikidzwa inoda mafuta. Butterfly mavharuvhu anotenderera zvisingaite anofanirwa kushandiswa kamwechete pamwedzi.
Kusarudzwa kwevharuvhu kungaita sekunge kusarudzwa uye kuita basa rekubatanidza, asi kune akati wandei maitiro ehunyanzvi ekufunga.Yekutanga inosanganisira kunzwisisa rudzi rwekudzorwa kwemvura inodiwa uye rudzi rwesevhisi fluid.Corrosive fluid services inoda mavharuvhu akagadzirwa nesimbi isina tsvina, nichrome, kana zvimwe zvinhu zvisingadziviriri.
Vashandisi vanofanira kufunga nezvesimba, kudzvanywa uye tembiricha shanduko yepombi uye mwero weotomatiki unodiwa.Kunyange zvazvo mavharuvhu e butterfly achishanda achinyatso kudzora kuyerera, anodhura kupfuura mamwe anoshandiswa nemaoko.Mavharuvhu eButterfly haadzoreki uye haapi. chiteshi chakazara.
Kana mushandisi asina chokwadi nezve kuenderana kwemakemikari kwemaitiro kana actuation sarudzo, inokwanisa kambani yevharuvhu inogona kubatsira mukuona kusarudzwa kwakaringana.
Gilbert Welsford Jr. ndiye muvambi weValveMan uye yechitatu-chizvarwa Valve entrepreneur.Kuti uwane rumwe ruzivo, shanya Valveman.com.
Nguva yekutumira: Kubvumbi-14-2022
