Iivalvu zizinto ezibaluleke kakhulu kwiinkqubo zombane.ivalvu yesango, njengoko igama lisitsho, luhlobo lwevalvu esetyenziselwa ukulawula ukuhamba kolwelo kusetyenziswa isango okanye ipleyiti. Olu hlobo lweivalvuIsetyenziswa kakhulu ukumisa okanye ukuqala ukuhamba ngokupheleleyo kwaye ayisetyenziselwa ukulawula ubungakanani bokuhamba ngaphandle kokuba yenzelwe ngokukodwa ukwenza njalo.
Egqibeleleabavelisi beevalvu zoshishinolandela imigangatho engqongqo ngelixa usenza ezi zintoiivalvuukuqinisekisa umgangatho, ukuqina, kunye nokusebenza. Naluphi na uhlobo lomgangatho ongaphantsi komgangatho lunokukhokelela kumonakalo ongafunekiyo kunye nelahleko yezoqoqosho. Ukusebenza kakuhle kunye nokulula kokusebenza zizinto ezimbini ezibalulekileyo xa ukhetha ivalvu kwiindidi ezininzi zeevalvu ezikhoyo kwimarike.
Ivalvu yesluiceibizwa nguivalvu yesango, khangela ukuze ufumane ulwazi oluthe kratya ngabo.
Intoniis AIvalvu yeSango?
Umthombo:Ivalvu yeTWS
A ivalvu yesangoluhlobo lwevalvu yokwahlulahlula esetyenziselwa ukulawula ukuhamba kolwelo kwinkqubo yemizi-mveliso.i-sluiceibhekisa kumjelo wokwenziwa oncediswa lisango lokulawula ukuhamba kwamanzi. Iivalvu ze-sluice okanyeiivalvu zesango lemizi-mvelisozisetyenziselwa iinjongo zoshishino. Iindlela zayo ezilula nezilula zenza ukuba ibe yenye yezona zisetyenziswa kakhuluiivalvukwimizi-mveliso eyahlukeneyo. Ivalvu isebenza ngokususa okanye ukuphakamisa umqobo kwindlela yolwelo oluhambayo.
Isetyenziswa ecaleni kombhobho ngendlela yokuhamba kwicala elinye okanye kwicala elibini. Xa ivuliwe ngokupheleleyo, ayiniki ukumelana nolwelo oluhambayo, nto leyo yenye yezizathu eziphambili zokuba ithathwa njengesebenza kakuhle. Imilo yesango isenokuba ngaxeshanye, kodwa kwiimeko ezininzi, igcinwa ikwimo ye-wedge.iivalvu zesangokunceda ekudaleni isitywini esingcono xa sivaliwe njengoko sifaka uxinzelelo kumphezulu wokutywina kwaye sinika ukusebenza okungcono kokutywina.
A ivalvu yesangoisebenza ngokujikelezisa ivili eliphathwa ngesandla ngesandla, okanye isebenzisa i-actuator yombane okanye ye-pneumatic.Ukujikeleza kwevili kuhambisa isango phezulu nasezantsi izihlandlo ezininzi, nto leyo elawula ukuhamba kolwelo okanye igesi ngaphakathi kwivalvu. Ukuvula isango kunika umqobo omncinci ekuhambeni kwamanzi kodwa ukugcina isango livulekile kunokubangela umonakalo njengoko ulwelo okanye igesi ehambayo iya kuba noxinzelelo olukhulu kwipleyiti. Endaweni yokoiivalvu zesango, iivalvu zeglobhu zingasetyenziselwa ukulawula ukuhamba kwamanzi.
Umsebenzi
Nangonaivalvu yesangookanye ivalvu yokucoca kulula ukuyisebenzisa, iqulathe izinto ezininzi ezidityaniswe kunye ukuze isebenze ngokufanelekileyo. Olu hloboivalvuIqulathe umzimba, isango, isihlalo, ibhonethi, kwaye kwezinye iimeko, i-actuator ezenzela ngokuzenzekelayo ukuhamba komoya.Iivalvu zesangoingenziwa kusetyenziswa izinto ezahlukeneyo; nangona kunjalo, intsimbi engatyiwayo yeyona ikhethwayo kuba izinto ezisetyenziswayo ziyakwazi ukumelana notshintsho kubushushu okanye uxinzelelo. Iindawo ezahlukeneyo zevalvu yesango zichazwe ngezantsi.
Isango
Ifumaneka kwiindidi ezahlukeneyo zoyilo, isango liyinxalenye ephambili yevalvu yesango. Eyona nto iphambili kuyilo lwayo kukukwazi kwayo ukutywina kwiindlela ezithile zokusebenza.ivalvu yesangoinokuhlelwa njengevalvu ehambelanayo okanye efana ne-wedge ngokusekelwe kuhlobo lwesango. Eyokuqala inokwahlulwahlulwa ibe ngamasango e-slab, amasango e-parallel slide, kunye namasango akhula ngokulinganayo.
Izihlalo
A ivalvu yesangoinezihlalo ezibini eziqinisekisa ukutywinwa kunye nesango. Ezi zihlalo zinokudityaniswa ngaphakathi komzimba wevalvu, okanye zingabakho ngendlela yeringi yesihlalo. Eyokugqibela ifakwa imisonto okanye icinezelwe kwindawo yayo ize ivalwe kwaye idityaniswe emzimbeni wevalvu. Kwiimeko apho ivalvu iphantsi kobushushu obuphezulu, iiringi zesihlalo ziyathandwa, njengoko zivumela ukwahluka okungakumbi kuyilo.
Isiqu
Isango elikwiivalvu yesangoiyathotywa okanye iphakanyisiwe xa ijikeleza kwinkqubo enemisonto. Oku kungenzeka ngevili eliqhutywa ngesandla okanye i-actuator.ivalvu yesangoingalawulwa kude. Ngokuxhomekeke kuhlobo lwenyathelo,ivalvu yesangozingahlulwahlulwa zibe ziivalvu zesiqu esinyukayo kunye nezinganyukiyo. Eyokuqala inamathele kwisango, ngelixa eyesibini inamathele kwi-actuator kwaye ifakwe kwisango.
Iibhonethi
Iibhonethi zizinto zevalvu eziqinisekisa ukuvalwa okukhuselekileyo kwendlela. Zibotshelelwa okanye zikrufulwe emzimbeni wevalvu ukuze zisuswe ukuze zitshintshwe okanye zigcinwe. Ngokusekelwe ekusetyenzisweni kwazo, iintlobo ezahlukeneyo zeebhonethi zevalvu ziquka iibhonethi zebolthi, iibhonethi zeskrufu, iibhonethi zeyuniyoni, kunye neebhonethi zepressure seal.
Izicelo
Iivalvu zesangoIivalvu okanye iivalvu ze-sluice zinezicelo ezininzi kumashishini ahlukeneyo kwaye zisetyenziswa ngeendlela ezahlukeneyo ekulawuleni ulwelo, igesi, kwanokuhamba komoya. Kwiimeko ezinzima kokusingqongileyo ezifana neendawo ezinobushushu obuphezulu okanye uxinzelelo oluphezulu kumashishini e-petrochemical, iivalvu zesango zezona zixhobo zisetyenziswa kakhulu. Kwiimeko ezinjalo, izinto kunye nohlobo lwevalvu zidlala indima ebalulekileyo ekusebenzeni nasekusebenzeni kakuhle kwevalvu.
Iivalvu zesango zikwasetyenziswa kwiinkqubo zokhuseleko lomlilo, aphoivalvu yesango ejikelezileyoisetyenziswa rhoqo.Iivalvu zesango lesiqu ezinganyukiyozisetyenziswa kwiinqanawa okanye phantsi komhlaba kwiindawo apho isithuba esithe nkqo sincinci khona.
Iintlobo zeIivalvu zeSango
Umthombo:Ivalvu yeTWS
Ifanayo kwaye Imile okweWedgeIivalvu zeSango
Njengoko igama lisitsho, iivalvu zesango leslayidi elihambahambayo zinesango elithe tyaba, elijonge ngakwicala elifanayo elifakwe phakathi kwezihlalo ezibini ezihambahambayo. Kwelinye icala, i-wedgeiivalvu zesangoinento yesango efana ne-wedge. Le ineembambo kumacala omabini kwaye ikhokelwa kwindawo yayo ziindawo ezikwi-gate body. Ezi zikhokelo ze-wedge zinceda ekudluliseni imithwalo ye-axial ebekwe yi-medium ukuya kwi-valve body, zivumela intshukumo ephantsi yokungqubana, kwaye zithintele ukujikeleza kwe-wedge ngelixa uhamba phakathi kweendawo ezivulekileyo.
Iivalvu zeSango leSitem esiKhulayo kunye neSitem esingaKhuliyo
Umahluko ophambili phakathi kwezi ntlobo zimbini zeiivalvu zesangokukuba zizinzile (ziphakama) okanye zinemisonto (aziphakami).iivalvu zesango lesiqu ezinyukayo, isiqu esijikelezayo siyaphakama ngelixa ivalvu ivuleka. Nangona kunjalo, olu hlobo lwevalvu alukhethwa apho indawo incinci okanye ukufakelwa kungaphantsi komhlaba.
Iivalvu zeSango eziHlalwe ngentsimbi neziHlalwe ngokuQinileyo
Zombini ezi zinto zincinciiivalvu zesango. Ngaphakathiiivalvu ezihleli ngentsimbi, i-wedge ityibilika iye emngxunyeni osecaleniivalvu yesangoumzimba kwaye inokubamba izinto eziqinileyo ezinokuba nolwelo. Ngenxa yoko,iivalvu ezihleli phantsi eziqinileyozikhethwa apho kufuneka zicinywe kakhulu, njengakwiinkqubo zokusasaza amanzi.
In iivalvu ezihleli phantsi eziqinileyo, i-wedge ivalelwe ngaphakathi kwi-elastomer eqinisekisa ukutywinwa okuqinileyo. Indawo yokuhlala yenzeka phakathi komzimba wevalvu kunye ne-wedge kwaye ngenxa yoko ayifuni sidingo somngxuma njengakwivalvu yesango ehleli ngentsimbi. Ekubeni ezi valve zigqunywe nge-elastomer okanye izinto ezihlala ixesha elide, zibonelela ngokhuseleko oluphezulu lokugqwala.
Amagama Okugqibela
Iivalvu zeSluice kunyeiivalvu zesangongamagama ahlukeneyo ohlobo olufanayo lwevalvu. La luhlobo oluqhelekileyo lwevalvuiivalvu zoshishinoisetyenziswa. Njengoko iivalvu zesango zenziwe ngezinto ezahlukeneyo kwaye zineentlobo ezahlukeneyo, uhlobo lwevalvu kufuneka lukhethwe ngononophelo kwiindlela ezithile zokusebenza.
Umgangatho olungileyo kunye nokusebenza kakuhleiivalvunjengezo zibhalwe nguIvalvu yeTWSlutyalo-mali olukhulu kuba aludingi kulungiswa kakhulu ekuhambeni kwexesha, nto leyo enokonga imali eninzi.Ivalvu Ivalvu yeTWSnamhlanje ngeevalvu ezikumgangatho ophezulu.
Ixesha lokuthumela: Matshi-02-2023
