Ukubaluleka kweevalvu kuyilo lwemibhobho yobuchwephesha bokuhambisa amanzi ngombhobho

Ukubaluleka kweevalvu kuyilo lwemibhobho yobuchwephesha bokuhambisa amanzi ngombhobho

Kwiinkqubo zemibhobho yamanzi, iivalve zizinto zokulawula indima yazo ephambili kukwahlula izixhobo kunye neenkqubo zemibhobho, ukulawula ukuhamba, ukuthintela ukubuya umva, ukulawula nokukhupha uxinzelelo. Ngenxa yokuba inkqubo yombhobho yokukhetha ivalve efanelekileyo ibaluleke kakhulu, ngoko ke, ukuqonda iimpawu zevalve kunye nokukhethwa kwamanyathelo evalve kunye nesiseko nako kubaluleke kakhulu. Ukubaluleka kweevalvu kuyilo lwemibhobho..
Kwiinkqubo zemibhobho yamanzi, iivalve zizinto zokulawula indima yazo ephambili kukwahlula izixhobo kunye neenkqubo zemibhobho, ukulawula ukuhamba, ukuthintela ukubuya umva, ukulawula nokukhupha uxinzelelo. Ngenxa yokuba inkqubo yokubhobhoza ukukhetha eyona valve ifanelekileyo ibaluleke kakhulu, ngoko ke, ukuqonda iimpawu zevalve kunye nokukhethwa kwamanyathelo evalve kunye nesiseko kubaluleke kakhulu.
Ukubaluleka kweevalvu kuyilo lwemibhobho
1. Iimpawu zeValve ngokuqhelekileyo zineentlobo ezimbini, iimpawu zenkonzo kunye neempawu zesakhiwo.
Ukusetyenziswa kweempawu: imisela usetyenziso oluphambili lwendlela yokusebenza kwevalve kunye noluhlu losetyenziso, luyinxalenye yeempawu zokusetyenziswa kwevalve zezi: udidi lwevalvu (ivalve yesekethe evaliweyo, ivalve elawulayo, ivalve yokhuseleko, njl.); Uhlobo lwemveliso (ivalve yesango, ivalve yeglowubhu, ivalve yebhabhathane, ivalve yebhola, njl.); Iindawo eziphambili zevalve (umzimba wevalve, isigqubuthelo, isiqu, idiski, umphezulu wokutywina) izinto; Imowudi yothumelo lwevalve, njl ifom (uxhulumaniso lwe-flange, uxhulumaniso lwentambo, uxhumano lwe-hoop, uxhumano lwentambo yangaphandle, uxhumano lwe-welding end, njl.); Indlela yokutywina (faka i-ring, i-thread ring, i-surfacing, i-welding yokutshiza, umzimba womzimba); Ifom yesakhiwo se-valve stem (intonga ejikelezayo, intonga yokuphakamisa), njl.
2. Amanyathelo kunye nesiseko sokhetho lwevalvu lulandelayo:
⑴ Amanyathelo okukhetha
I-valve ecacileyo kwisixhobo okanye ukusetyenziswa kwesixhobo, misela iimeko zokusebenza zevalve: i-medium esebenzayo, uxinzelelo lokusebenza, ubushushu bokusebenza kunye nokunye.
(2) Qinisekisa ubungakanani begama kunye nendlela yokudibanisa yombhobho odibanisa nevalve: i-flange, intambo, i-welding, njl.
(3) Misela indlela yokusebenzisa ivalve: manual, umbane, i-electromagnetic, i-pneumatic okanye i-hydraulic, ikhonkco yombane okanye i-electro-hydraulic linkage.
④ Ngokwendlela yokuhambisa umbhobho, uxinzelelo olusebenzayo, ubushushu bokusebenza ukuchonga iqokobhe levalve ekhethiweyo kunye nenxalenye yangaphakathi yesixhobo: intsimbi engwevu, intsimbi ekhatywayo, intsimbi yekhabhoni, intsimbi yealloy, intsimbi enganyangekiyo, ubhedu. i-alloy, njl.
⑤ Khetha uhlobo lwevalve: ivalve evaliweyo, ivalve elawulayo, ivalve yokhuseleko, njl.
⑥ Qinisekisa uhlobo lwevalve: ivelufa yesango, ivalve yeglowubhu, ivalve yebhola, ivelufa yebhabhathane, ivelufa ye-throttle, ivelufa yokhuseleko, ivelufa yokunciphisa uxinzelelo, umgibe womphunga, njl.
Qinisekisa iiparameters zevalve: kwivalve ezenzekelayo, ngokweemfuno ezahlukeneyo zokugqiba ukuchasana nokuhamba, ukukhupha umthamo, uxinzelelo lwangasemva, kwaye emva koko unqume i-diameter yegama lombhobho kunye nobubanzi bomngxuma wokuhlala.
⑧ ukumisela iiparamitha zejometri ezikhethiweyo zevalve: ubude besakhiwo, ifom yoqhagamshelo lweflange kunye nobukhulu, vula kwaye uvale emva kokuphakama kwevalve yobungakanani, ukudibanisa ubungakanani bomngxuma webholithi kunye nenani, ubungakanani bemilo yevalve yonke.
⑨ Sebenzisa ulwazi olukhoyo: ikhathalogu yemveliso yevalvu, iisampulu zemveliso yevalvu, njalo njalo, ukukhetha iimveliso ezifanelekileyo zevalvu.
Isiseko sokukhetha ivalve
(1) ukusetyenziswa kwevalve ekhethiweyo, iimeko zokusebenza kunye nemodi yokulawula.
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③ Iimfuno zeempawu zolwelo lwevalvu: ukumelana nokuqukuqela, ukukhupha umthamo, iimpawu zokuqukuqela, ibakala lokutywina njalo njalo.
(4) Ubungakanani bofakelo kunye neemfuno zobukhulu bembonakalo: i-diameter yegama, ukudibanisa kunye nombhobho kunye nobukhulu bokudibanisa, ubukhulu bembonakalo okanye umda wobunzima.
⑤ Iimfuno ezongezelelweyo zokuthembeka kweemveliso zevalvu, ubomi benkonzo kunye nokusebenza kobungqina bokudubula kwezixhobo zombane. Ngokutsho kolu khetho lungentla lwesiseko sevalve kunye namanyathelo, ukhetho olufanelekileyo noluchanekileyo lwevalve kufuneka lube nolwazi olunzulu lwesakhiwo sangaphakathi seentlobo ezahlukeneyo zeevalvu, ukuze ukwazi ukukhetha ngokufanelekileyo ivalve ukwenza ukhetho oluchanekileyo. Ulawulo lokugqibela lombhobho yivalve. I-valve yokuvula kunye neendawo zokuvala zilawula ukuhamba kweendaba kumbhobho, imilo ye-valve flow channel yenza ukuba i-valve ibe neempawu ezithile zokuhamba, ezimele zithathelwe ingqalelo xa ukhetha i-valve efanelekileyo ukufakwa kwinkqubo yepayipi.
Oku kulandelayo yimigaqo ekufuneka ilandelwe xa ukhetha iivalvu
(1) I-valve ene-cut-off kunye ne-open medium flow passage i-valve eqondileyo, ukuchasana kokuhamba kuncinci, ngokuqhelekileyo kukhethwe njenge-valve ene-cut-off kunye ne-medium evulekile. Ivalve evalekileyo eya ezantsi (ivalve yeglowubhu, ivalve yeplunger) ngenxa yendlela yayo yokuqukuqela, ukuchasana nokuqukuqela kuphezulu kunezinye iivalve, ngoko ke kukhethwe kancinci. Iivalvu ezivaliweyo zingasetyenziswa apho ukuchasana kokuhamba okuphezulu kuvunyelwe.
I-valve yokulawula i-valve ngokuqhelekileyo ilula ukulungisa ukuhamba kwevalve njengendlela yokulawula. Iivalvu ZOKUVALA eziya ezantsi (ezifana neevalvu zeglowubhu) ZIYIFANELE LE NJONGO KUBA Ubungakanani besitulo BULINGANISELELE NE-STROKE OF SHUTOFF. IIVAVAVA ezijikelezayo (i-PLUG, ibhabhathane, iivalve zeBHOLA) kunye ne-FLEXURE BODY VALVES (I-PINCH, i-DIAPHRAGM) ZIKHONA UKULAWULWA OKUTHUKUTHELA, kodwa NGOKUQHELEKILEYO KUPHELA kuluhlu olulinganiselweyo lwe-valve DIAMETERS. I-VALVE yesango YIsango elimilise idiskhi kwizibuko lesihlalo esisetyhula ukwenza intshukumo enqamlezileyo, ikufutshane kuphela kwindawo evaliweyo, inokulawula ngcono ukuhamba, ngoko ayiqhelekanga ukusetyenziswa kulawulo lokuhamba.
⑶ Ivalve ene-shunt ebuyela umva ngokwesidingo sokubuyisela umva i-shunt, le valve inokuba nemijelo emithathu okanye ngaphezulu. Iivalve zeplagi kunye nebhola zifaneleke ngakumbi kule njongo, kwaye ngoko ke, iivalve ezininzi ezisetyenziselwa ukubuyisela umva kunye nokuguqula zikhethwa njengenye yezi valve. Nangona kunjalo, KWEZINYE IZIXHOBO, ezinye IINTLOBO ZEVAVAVA ZINOKUSETYENZISWA NJENGEZIPHUMULI ZOTHUTHO, NGOKUBA AMAVAVAVU AMABINI okanye ANGAPHEZULU aqhagamshelwe ngokufanelekileyo enye kwenye.
⑷ Ivalve enamasuntswana aphakathi kunye namasuntswana amisiweyo phakathi, ** ifanelekile ukusebenzisa iindawo zokuvala ecaleni kwendawo yokutywina yevalve etyibilikayo enesiphumo sokusula. Ukuba UKUVALWA KUNQUMILE EMVA NAPHAMBI KWESIHLALO, AMANQAKU ANOKUBANJISWA, NGOKO LE VALIVI IFANELE KUPHELA I-MEDIA ECOCEKILEYO NGOKUPHANDLE NGAPHANDLE KOKUBA UMSEBENZI WOKUtywina UVUMELEKILE UKUBA AMANQAKU ANGABHINWE. Iivalve zebhola kunye neeplagi zeplagi zisula indawo yokutywina ngexesha lokuvula nokuvala, ngoko ke zifanelekile ukusetyenziswa kwimidiya kunye neengqungquthela ezimisiwe. Okwangoku, nokuba kukwi-petroleum, kushishino lweekhemikhali, okanye kwamanye amashishini enkqubo yombhobho, ukusetyenziswa kwevalve, ukusebenza rhoqo kunye nenkonzo iyatshintsha, ukulawula okanye ukuphelisa nokuvuza okuphantsi, izixhobo ezibalulekileyo kunye nezibalulekileyo linani leevalvu. Ulawulo lokugqibela lombhobho yivalve, ivalve kuzo zonke iinkalo zenkonzo kunye nokusebenza okuthembekileyo.
Itekhnoloji yokuhanjiswa kwamanzi ngombhobho Ukuhanjiswa kwamanzi ngombhobho kunoncedo lokonga amanzi, ukonga amandla, ukonga umhlaba, isantya sokuhanjiswa kwamanzi okukhawulezayo, unikezelo lwamanzi kwangexesha, kunye nokulungele ukusebenza koomatshini basefama ebaleni. Itekhnoloji yokuhambisa amanzi ngombhobho inokohlulwa ibe yiteknoloji yokuhambisa amanzi ngombhobho woxinzelelo oluphantsi kwindawo yokunkcenkceshela kunye neteknoloji yokuhambisa amanzi ngombhobho kwindawo yokunkcenkceshela yomjelo ngokweemeko zomthombo wamanzi.
Itekhnoloji yokuhambisa amanzi kwimibhobho yoxinzelelo oluphantsi kwindawo yokunkcenkceshela
Ummandla wenkqubo yokuhanjiswa kombhobho woxinzelelo oluphantsi ngamanzi (ishafti), uthungelwano lwemibhobho yokuhanjiswa kwamanzi kunye nokuphuma kwezahlulo ezithathu ▄ okwangoku yenze inkqubo yetekhnoloji eqolileyo ngokufanelekileyo efanele iimeko zelizwe laseTshayina. Kwixesha elizayo, isitshixo sokuphucula umgangatho, ukulinganisa, ukulandelelana kweemveliso zokufakelwa kombhobho kunye nesicelo esixhasayo senkqubo ye-thyristor yentsimi.
Itekhnoloji yokuhanjiswa kwamanzi ngombhobho kwindawo yokunkcenkceshela yomjelo
Inkqubo yokunikezelwa kwamanzi yendawo yokunkcenkceshela i-canal ineempawu zokuhamba okukhulu, amanqanaba amaninzi enkqubo kunye nemeko enzima ye-hydraulic. Ukuthandwa kwayo kunye nokusetyenziswa kwayo kusekwinqanaba lokulinga e-China, kwaye inamandla amakhulu ophuhliso. Kwixesha elizayo, kufuneka sithathe uphuhliso kunye nokuveliswa kwemibhobho emikhulu kunye nomgangatho ophantsi njengempumelelo, siqhube ngamandla ukukhuthazwa kunye nophando lwesicelo, kwaye senze inkqubo yobugcisa exhasayo ekhulileyo edibanisa ukucwangciswa kunye noyilo, ukukhethwa kwemibhobho kunye nokufakelwa, iteknoloji yokwakha kunye nolawulo lokusebenza.
Inkqubo ye-thyristor ethambileyo
I-thyristor ethambileyo yenziwe ngeplastiki, irabha okanye i-canvas kunye nezinye izinto. Ineenzuzo zeendleko eziphantsi kunye nesicelo esilula, kodwa ubomi bayo benkonzo bufutshane.
Inkqubo ye-thyristor enzima
I-thyristors enzima yenziwe nge-PVC okanye i-aluminium imibhobho, exhotywe ngokudibanisa ngokukhawuleza, kwaye inokuhlanganiswa kwintsimi ngokwemiqathango yeforomo. Xa kuthelekiswa nenkqubo ye-thyristor ethambileyo, ubomi benkonzo bude, kodwa ixabiso liphezulu.