Ufakelo kunye nokulungiswa kwe-valve yohlengahlengiso lombane zizinto ezimbi kwaye zinenzuzo kuphuhliso lohlengahlengiso lombane-ivalveishishini kwilizwe lethu
Kwinkqubo yokuvelisa kunye nonikezelo lwamandla, iivalve ezininzi zesango ngokubanzi, iivalve zediski kunye ne-hydraulic butterfly valves zisetyenziswa kumashishini okuvelisa, ngakumbi kwizixeko ezikhulu. Balawula ukuveliswa kunye nokuveliswa kwamanzi okusela, eyona nto ingundoqo kwiinkampani zokubonelela ngombane. Ivalve yesango yombane inevalve yokulawula yombane kunye nezixhobo ezixhasayo zevalvu yesango. Isetyenziselwa ukusebenza ukuvula kunye nokuvalwa kwevalve yesango. Inokuqhutywa kwindawo kwaye inokuqhutywa ukude.
Amashishini okuvelisa, ngakumbi iinkampani zokubonelela ngamanzi kwizixeko ezikhulu, zisebenzisa iivalvu zesango ngokubanzi, iivalvu zediskhi, iivalvu zebhabhathane zehydraulic, njl.njl., kwinkqubo yokuvelisa kunye nonikezelo lombane, ukuqonda imveliso kunye nokuveliswa kwamanzi okusela, oku isixhobo esiphambili kwiinkampani zokubonelela ngombane. Kukho inani elikhulu leevalvu zesango ezisetyenziswa kuzo zonke iintlobo zeevalvu zesango. Iqokelelwa yinethiwekhi yevalve yempompo yaseTshayina kwaye iya kukufundisa ukunyenyisa isixhobo sombane sevalve yolawulo yombane ngesandla.
Ivalve yesango yombane inevalve yokulawula yombane kunye nezixhobo ezixhasayo zevalvu yesango. Isetyenziselwa ukusebenza ukuvula kunye nokuvalwa kwevalve yesango. Inokuqhutywa kwindawo kwaye inokuqhutywa ukude. Ivalve yokulawula yombane yenziwe ngemoto, isinciphisi, indlela yokunciphisa itorque, indlela yokulawula i-stroke, uhlobo lwencwadi yokuguqula umbane, indlela yokuvula isidanga sokumakisha kunye nephaneli yokulawula izixhobo zombane. Ukuba ukulungiswa kwesixhobo sombane kwi-valve yesango lombane kungenangqiqo, ubomi benkonzo yevalve yesango kufuneka buncitshiswe. Iingozi ezimandundu ezifana nesango levalufa yehagu yentsimbi, ukophuka kwecasing yokulawula ukutsha kwemoto kunye negumbi lokumpompa. Ngoko ke, ukwenzela ukuba kuqinisekiswe ukunikezelwa kwamandla okukhuselekileyo kunye nokungaphazamiseki, kuyimfuneko ukulungelelanisa isixhobo sombane se-valve yesango lombane kakuhle ukuze kuqinisekiswe ukuvulwa okuyimpumelelo kunye nokuvalwa kwe-valve yesango lombane. Ezi nkcukacha zilandelayo zeendlela ezimbini zohlengahlengiso lwevalvu yesango lombane:
1. Ukulungelelaniswa kwendlela yokunciphisa itorque
Iivalvu zesango zombane zisetyenziswa kwiindawo ezahlukeneyo ngenxa yomahluko woxinzelelo kuzo zombini iziphelo zevalve yesango okanye umahluko kuxinzelelo lomoya (ivalve yesango ivaliwe), indlela yokunciphisa itorque kufuneka ihlengahlengiswe ngokufanelekileyo. Ekusetyenzisweni kwevalve yesango yombane kumacala omabini oxinzelelo lwe-azimuthal okanye uxinzelelo lomoya kwindawo ephantsi, indlela yokunciphisa itorque kufuneka ihlengahlengiswe ibe yitorque ephantsi, iimveliso zeHZ (njengoko kubonisiwe kuMfanekiso 1), iimveliso ze-Z (njengoko kubonisiwe kuMfanekiso I-2) okanye iimveliso zechungechunge ze-ZB (njengoko kubonisiwe kwi-Figure 3) ivalve yokulawula yombane, kufuneka kuphela ukulungelelanisa i-torque yokunciphisa ipleyiti yokulungelelanisa kunye nomgama phakathi kwepleyiti ehambayo ukufezekisa (uhlengahlengiso oluneenkcukacha). Ipleyiti yerula iphawulwe ngerula, kwaye ngakumbi ixabiso lesikali, likhulu ixabiso letorque. Ivalve yokulawula ivalve yesango yombane ivaliwe xa umahluko woxinzelelo phakathi kweziphelo ezimbini okanye uxinzelelo lomoya ngaphezulu, ixabiso letorque elihlengahlengisiweyo kufuneka libe ngaphezulu, ngokuchaseneyo, lincinci. Olu luhlu lungasentla lwendlela yohlengahlengiso lwemveliso luyafana. Xa uhlengahlengisa uthotho lwe-ZD ivelufa yokulawula yombane (njengoko kubonisiwe kuMfanekiso 4), susa isigqubuthelo esisecaleni seqokobhe, hlengahlengisa indlela yokunciphisa i-torque, khulula isikrufu sokulungisa kwisikrufu sokulungelelanisa, khulula isikrufu sokulungelelanisa, khulula iqhosha loxinzelelo lwe-torque spring, kwaye ubeke kwindawo ekhululekileyo, kwaye uqinise i-screw yokulungisa kwi-screw yokulungisa, lungisa i-screw adjusting. Qaphela ukuba umphezulu we-screw yokulungisa kufuneka uwele kumzimba we-shaft groove. Ukuba umphezulu awukhombe ngqo kwi-shaft groove, kuphela umlinganiselo omncinci wokujikeleza kwe-screw yokulungelelanisa kwicala lomthombo we-torsion ofunekayo ukuze ubhekisele kwi-screw yokulungisa i-shaft groove. Beka kwikhava yecala kwaye ulungise ivalve yesango. Ukuba umlinganiselo wetorque umthambo wokuzilolonga, umthombo we-torsion ukhululekile kakhulu kwaye uqinile kwindawo. Oku kunokwenza indlela yokunciphisa i-torque isebenze phantsi kwetorque ephantsi ngokwentelekiso, ukuqinisekisa ukuba ivalve yesango yombane ngenxa yokungaphumeleli kwendlela yolawulo lokuhamba, okanye ezinye izizathu zetorque egqithisileyo, indlela yokunciphisa itorque ethembekileyo, kunye nokuqhawula umbane wokutshintsha umbane, khusela. ivalve ayiyi kutshatyalaliswa. Ivalve yesango yombane esetyenziswa kwezinye iindawo nayo ayifuni kuhlengahlengiswa ukuze ivaleke kakhulu, ilungelelaniswe kuhlobo lwemanuwali yokuvala kwaye emva koko ikhulule amakhonkco amabini (okanye umsesane) ifanelekile, (okanye akukho manzi okanye igesi ifanelekileyo) .
Xa ivalve yesango yombane ifakwe kwindawo apho umahluko woxinzelelo lwemveliso yamanzi (okanye uxinzelelo lomoya) mkhulu, indlela yokunciphisa itorque kufuneka ilungelelaniswe kwindawo efanelekileyo yokuvula kunye netorque yokurhoxisa. Ngokomzekelo, i-valve yesango lokuphuma kwamanzi efakwe kwigumbi lokupompoza, emva kokuba ipompo ye-centrifugal iqale, uxinzelelo lokukhutshwa kwamanzi lukhulu xa i-valve yesango ingavulwa. Ngeli xesha, okukhona imigangatho yevalve yesango lokuphuma kwamanzi, kokukhona itorque esetyenziswayo ukuvula ivalve yesango. Ngokukodwa xa kungekho xinzelelo kumbhobho, uxinzelelo lwe-unilateral olunokuthi luthwale ivalve yesango lukhulu kakhulu. Ngeli xesha, i-screw torsion spring ilungelelaniswe kwindawo eqhelekileyo yokuvula kunye nokuvalwa kwevalve yesango, kwaye indlela yokunciphisa i-torque ayikho kwindawo. Ivalve yesango yombane esetyenziswa kwigumbi lokumpompa kufuneka ilungelelaniswe kwindawo evulekileyo evalwe ngokupheleleyo, kungenjalo kulula ukonakalisa umphezulu wevalve yesango okukhokelela ekuphumeni kwamanzi. Ngenxa yokuba i-valve yesango yombane efakwe kule ndawo isondele kwi-centrifugal yepompo yamanzi, isantya sokuhamba kwamanzi siphezulu kwaye asizinzile. Ngeli xesha, ukuba ivalve yesango ayivulwanga ngokupheleleyo, ezinye iivalve zesango ziyajika zisuka kwelinye icala ziye kwelinye ngenxa yefuthe lokuhamba kwamanzi, ukuze ubuso bevalve yesango bonakaliswe, nto leyo ebangela ukuba amanzi avuthululwe econcave groove achaphazele ubomi benkonzo. yevalve yesango. Ukongeza kokuzama ukuphepha ukusebenzisa ivalve yesango yombane ukulungelelanisa ivalve, ngaphandle koko kulula ukutshabalalisa umphezulu wevalve yesango. Ukongeza, kwiminyaka yakutshanje, itekhnoloji yokulawula isantya sokuguqula isantya siphuhla ngokukhawuleza, uhlengahlengiso lokuhamba kwempompo kufuneka lusebenzise itekhnoloji yokulawula isantya sokuguqula isantya, ukuze kugcinwe amandla kunye nokunciphisa ukukhutshwa kokuphucula ukusebenza kakuhle kwempompo ye-centrifugal.
2 Ivalve yesango yombane “vula, vala” uhlengahlengiso lwendawo
Lungisa ukuvuleka nokuvalwa kweevalvu zesango zombane. Ngokwemigaqo yohlengahlengiso yomenzi ngamnye, i-valve yesango kufuneka ivalwe ngesandla kwindawo "evalwe ngokupheleleyo" okanye inxalenye "evulekileyo". Ukuba oku kufuna ukuba abasebenzi becaliber yesango elincinci bavale kwaye bavule ixesha lininzi, okanye linzima kakhulu. Indlela entsha yokulungelelanisa ifakwe apha ngokubanzi: ukuba i-stem spacing ye-valve yesango iyaziwa, kuya kuba lula ukulungelelanisa i-valve yesango lombane xa uyilungisa. Kule mihla, isithuba sesiqu sevalve yesango enomgangatho we-DN400-DN600 eveliswe e-China ngokuqhelekileyo yi-8mm, kwaye isithuba sesiqu sevalve yesango enomgangatho ongaphezulu kwe-DN600 yi-10mm ngokubanzi. Ukuba kuyenzeka, cela umenzi wevalvu yesango ukuba akhuphe izithuba zesikhondo. Xa ulungelelanisa i-valve yokulawula umbane, ukuba uyazi indawo ye-valve yesango kwangaphambili, ukuba uyazi ukuba i-valve yesango ikwindawo yonke evaliweyo, kufuneka ulungise inxalenye "evalwe ngokupheleleyo" kuqala. Okokuqala, ujikeleze ngesandla i-valve yesango kwindawo yokuqala, njengokujikeleza ezimbini okanye enye yesiqu. Emva koko wondla kumandla okutshintsha kwaye ucinezele iqhosha elithi "Vula". Jonga uguqulo. Ukuba ukuphambuka kwesiqu se-valve kuhambelana nokuguqulwa kwe-valve stem xa i-valve ivuliwe ngesandla ngokweqhosha lokuvula, ibonisa ukuba umgca ongathathi hlangothi we-motor ukwicala elifanayo kunye nomlawuli wezixhobo zombane zevalve. . Ngeli xesha, indlela yokulawula ukuhamba kwe-valve yesango kufuneka ilungiswe kwindawo evaliweyo ngokupheleleyo. Ngeli xesha, xa uvula i-valve yesango, bala inani lokujika kwe-stem rotation ye-valve yesango ukuze ukwazi ukuba kwindawo "evulekileyo". Ukuba yivalvu yesango yombane ye-DN500, isithuba sezinyo lesiqu yi-8mm, isiqu sevalve sijikeleza kube kanye ukuze sivuleke i-8mm, kwaye ipleyiti yevalvu yesango evulwe ngokupheleleyo kufuneka yenze umthambo wokuya phezulu wokomelela i-500mm, ngoko ke isikhondo sevalvuvu evulwe ngokupheleleyo kufuneka sijike. 500/8=62.5 ukujika. Ngeli xesha, cinezela iqhosha levalve evulekileyo kwaye ubale ukujika kwe-valve ye-63 kwindawo "evulekileyo", lungisa ibhodi yokulawula i-valve yokulawula ukuhamba, ukwenzela ukuba indawo yokuguqula i-toggle kwindawo "evulekileyo" ingaba. Ukususela ngoko, i-valve yesango yombane ingacinywa, ivulwe kwaye ihlolwe kwakhona, kwaye ukulungiswa kugqityiwe. Ukuba i-valve yesango yombane ikwindawo yokuvula ngaphambi kokulungiswa, kufuneka ilungelelaniswe ukuze iqalise indawo, inkqubo ngokwezi ngasentla.
3 Imibuzo edla ngokubuzwa emva kohlengahlengiso
Kunyaka omnye emva kokuba ivalve yesango yombane isetyenzisiwe, khangela ukuba izikrufu zokulungisa kwizikrufu zendlela yokunciphisa itorque ziwile okanye ziwile. Ngokukodwa, uchungechunge lwe-ZD yeevalvu zokulawula zombane (njengoko kubonisiwe kuMfanekiso 4), ezinye iivalve zesango zombane zivela kwinkqubo yokusetyenziswa, isiphelo esisezantsi sevalve yesango igotywe yipleyiti yevalve okanye isiphelo esiphezulu sesixhobo sombane esisisigxina. ipleyiti yembambo edibanisayo iqhekeziwe. Kutheni unomatshini wokunciphisa i-torque, i-torque eninzi kakhulu xa ungekho, ungacimi unikezelo lombane, isizathu kukuba isikrufu sokulungisa isikrufu sokulawula kwindlela yokunciphisa itorque sikhululekile ukukhulula isikrufu sokulawula i-screw. ixesha elide ukuqiniswa intlasa ye-torsion, de kube kusila intlasa ye-torsion, ukuze isithinteli setorque siphulukene nesiphumo, singabi nesiphumo se-buffer, esikhokelela kwingozi yokhuseleko kwivalve yesango lombane. Ke ngoko, unyaka nonyaka ukujonga ukuba izikrufu ezimiselweyo ziwa phantsi, ukuba izikrufu ezisisigxina zikhululekile kufuneka ziqiniswe, kwaye zifumane isizathu sokuwa kwesakhiwo sokuqiniswa.
I-Manual - i-rocker yokutshintsha yombane ibonelela ukuba isixhobo somatshini silula, kulula ukujika, xa utshintshela kwi-manual, ukuqinisekisa ukuba umbane, kwimeko yokusilela kwengozi.
Kwixesha elide, bambalwa kakhulu abavulekileyo, vala ivalve yesango kukutshintsha kwamandla rhoqo, ukuqinisekisa ukusebenza okuqhelekileyo kokusetyenziswa. (Kucetyiswa ujikelezo qho kwiinyanga ezintathu).
Ixesha lokuposa: Feb-24-2023
