Iindaba - Ngabaphi ababoneleli beValve yokuShutdown abali-10 abaphambili ehlabathini

Ababoneleli abali-10 abaphambili beevalvu zokuvala baquka iinkampani ezilandelayo ezaziwayo

Emerson, eMelika:

Uphawu lweFisher phantsi kwe-Emerson lugxile kwiivalvu zokulawula inkqubo, ezisetyenziswa kakhulu kwioyile, igesi, iikhemikhali kunye nezinye iindawo.

ISchumberger, eMelika:

UCameron phantsi kukaSchlumberger ubonelela ngeevalvu nezixhobo zemithombo yemithombo kwishishini leoyile negesi.

IFlowserve, eMelika:

Ibonelela ngeendidi ngeendidi zeevalvu zoshishino, kuquka iivalvu zokulawula, iivalvu zebhola, iivalvu zebhabhathane, njl.njl., ezisebenzela amashishini ombane, amachiza kunye nonyango lwamanzi.

I-Tyco International, e-USA:

Uhlobo lwayo lweTyco Valves & Controls lubonelela ngeevalvu zokukhusela umlilo, ukusetyenziswa kwemizi-mveliso kunye norhwebo.

I-KITZ, eJapan:

Omnye wabavelisi beevalvu abakhulu eJapan, kunye neemveliso ezigubungela amashishini, ezokwakha kunye nezoluntu.

IMI, e-UK:

Ubunjineli obubalulekileyo be-IMI bugxile kwiivalvu zoshishino ezikumgangatho ophezulu, ezisebenzela amashishini amandla, amandla kunye neekhemikhali.

ECrane, eMelika:

Uhlobo lwayo iCrane ChemPharma & Energy lubonelela ngezisombululo zeevalvu kumashishini eekhemikhali, iikhemikhali kunye namandla.

eVelan, eKhanada:

Igxile kwiivalvu zemizi-mveliso, kubandakanya iivalvu zesango, iivalvu zebhola, iivalvu zebhabhathane, njl.

I-KSB, eJamani:

Ibonelela ngezisombululo zepompo kunye neevalvu, ezisetyenziswa kakhulu kunyango lwamanzi, amandla kunye namacandelo emizi-mveliso.

Iqela leWeir, e-UK:

Uhlobo lwayo lweWeir Valves & Controls lugxile kwiivalvu ezisebenza kakuhle kwimizi-mveliso yemigodi, umbane kunye neoyile negesi.

Iingcebiso:NUmenzi weValve ye-SWngumthengisi wevalvu yokuvala owaziwayo eTshayina. Banefektri yabo yomzimba wevalvu yokuvala kunye nefektri ye-actuator yevalvu yokuvala. Banokukunika inkxaso yobugcisa yobungcali kunye namaxabiso efektri yevalvu yokuvala.

Ivalvu Yokuvala (SDV)

Yintoni iValve yokuvala (i-SDV)

Ivalvu yokuvala luhlobo lwe-actuator kwinkqubo ye-automation. Iqulathe i-actuator ye-diaphragm ye-pneumatic ene-spring eninzi okanye i-actuator ye-piston edadayo kunye ne-valve elawulayo. Isetyenziswa kakhulu ukusika okanye ukudibanisa ulwelo olukwipayipi ngokukhawuleza (njengegesi, umoya ovuthayo, umoya obandayo kunye negesi ye-flue, njl.njl.). Isetyenziswa kakhulu kwiinkqubo zolawulo lokhuseleko lwemizi-mveliso kunye nokuphathwa kweengozi ezingxamisekileyo.

Umsebenzi oPhambili kunye noMgaqo wokuSebenza weValve yokuvala

Umsebenzi ophambili wevalvu yokuvala kukunqumla ngokukhawuleza, ukudibanisa okanye ukutshintsha ulwelo olukwipayipi ngokufumana isignali yesixhobo esilawulayo (esifana ne-alamu yoxinzelelo, ubushushu okanye ukuvuza). Indlela esebenza ngayo ibandakanya:

Isiqalisi sesiginali:Xa i-sensor ibona into engaqhelekanga (njengokuvuza kwegesi, uxinzelelo oludlula umda), isignali idluliselwa kwi-actuator.

Impendulo yoomatshini:I-diaphragm ye-pneumatic okanye i-piston mechanism iqhuba umzimba wevalvu ukuba ushukume (njengevalvu yebhola, ivalvu yesihlalo esinye), itshintsha imeko yokuvulwa nokuvalwa kwevalvu.

Isitshixo sokhuseleko:Emva kokuba ivalvu yokuvala ngexesha likaxakeka ivaliwe, idla ngokuyilwa ukuba ikwazi ukuzitshixa ukuze ithintele ukuvulwa ngengozi.

Iintlobo eziphambili kunye neemeko zokusetyenziswa kwevalvu yokuvala

Iivalvu zokuvalaZinokwahlulwa zibe ziintlobo ezilandelayo eziqhelekileyo ngokwesakhiwo kunye nenjongo yazo:

‌Iivalvu zokuvala eziqhelekileyo:isetyenziselwa ulawulo lweenkqubo zoshishino (ezifana noshishino lweekhemikhali kunye ne-metallurgy), ikakhulu kusetyenziswa i-ball valve okanye isakhiwo se-sleeve valve ukufezekisa ulawulo oluphakathi lokuvala.

Ivalvu yokuvala engxamisekileyo:inikezelwe kwiinkqubo zokhuseleko (ezifana nemibhobho yegesi kunye neenkqubo ze-SIS), ngesantya esikhawulezayo sokuphendula kunye nomsebenzi wokuzitshixa ukuthintela ukwanda kweengozi.

Ivalvu yokuvala i-diaphragm ye-pneumatic:Ivalvu ilawulwa yi-diaphragm eqhutywa luxinzelelo lomoya, efanelekileyo kwiimeko zolawulo oluzenzekelayo olukude (ezifana nemizi-mveliso yeoyile kunye nombane).