Jonga iiValuvu Vs. Iivalvu zeSango: Yeyiphi eLungileyo kwiSicelo sakho?

Iivalvuzizinto ezibalulekileyo kwiinkqubo zokuphatha ulwelo, ezivumela ulawulo kunye nokulawulwa kokuhamba kwamanzi. Ezimbini zezona ntlobo zisetyenziswa kakhulu iivalvu kwimizi-mveliso, urhwebo, kunye nezicelo zokuhlalaivalve yesangokwaye ikhangela ivalve. Ngelixa zombini zisebenza indima ebalulekileyo kulawulo lolwelo, uyilo, imisebenzi, kunye nokusetyenziswa kwazo kwahluka kakhulu. Ukuqonda umahluko phakathi kwezi ntlobo zimbini zeevalvu kubalulekile ekukhetheni ivalve elungileyo kwinkqubo ethile.
Esi sikhokelo sibanzi siya kuphonononga umahluko osisiseko phakathi kweevalvu zesango kunye neevalvu zokujonga, imigaqo yazo yokusebenza, uyilo, usetyenziso, kunye neemfuno zokugcinwa.

1. Ingcaciso kunye neNjongo
Ivalve yeSango
Ivalve yesango luhlobo lwesivalo esisebenzisa isango elisicaba okanye elimise okwe wedge (idiski) ukulawula ukuhamba kolwelo ngombhobho. Ukuhamba kwesango, elixhomekeke kwi-perpendicular to flow, livumela ukuvalwa ngokupheleleyo okanye ukuvulwa ngokupheleleyo kwendlela yokuhamba. Iivalve zesango zisetyenziswa ngokuqhelekileyo xa kufuneka ukuhamba okupheleleyo, okungathintelekiyo okanye ukuvalwa ngokupheleleyo. Zilungele ukulayishwa / ukuvala ulawulo kodwa azifanelekanga ukulawulwa kwe-throttling okanye ukuhamba.

Jonga iValve
Ivalve yokukhangela, kwelinye icala, ivalve engabuyiyo (NRV) eyenzelwe ukuvumela ulwelo ukuba luhambe kwicala elinye kuphela. Injongo yayo ephambili kukuthintela ukubuyela umva, okunokubangela umonakalo kwisixhobo okanye ukuphazamisa iinkqubo. Iivalve zokukhangela zisebenza ngokuzenzekelayo kwaye azifuni ukungenelela ngesandla. Ngokuqhelekileyo zisetyenziswa kwiinkqubo apho ukuhamba umva kunokubangela ungcoliseko, umonakalo wesixhobo, okanye inkqubo yokungasebenzi kakuhle.

2. UmGaqo wokuSebenza
Umgaqo-siseko wokuSebenza weSango
Umgaqo osebenzayo wevalve yesango ulula. Xa isiphatho sevalve okanye i-actuator ijikwa, isango liya phezulu okanye lisezantsi ngesiqu sevalve. Xa isango liphakanyiswe ngokupheleleyo, linika indlela yokuhamba engaphazamisekiyo, okubangelwa ukuhla koxinzelelo oluncinci. Xa isango lithotywa, lithintela ukuhamba ngokupheleleyo.
Iivalvu zesango azilawuli kakuhle izinga lokuhamba, njengoko ukuvuleka okungaphelelanga kunokubangela isiphithiphithi kunye nokungcangcazela, okukhokelela ekugugeni. Ziye zisetyenziswe ngokufanelekileyo kwizicelo ezifuna ukuqala ngokupheleleyo / ukumisa umsebenzi kunolawulo oluchanekileyo lokuhamba kwamanzi.

Khangela uMgaqo wokuSebenza weValve
Ivalve yokukhangela isebenza ngokuzenzekelayo isebenzisa amandla olwelo. Xa i-fluid ihamba ngendlela ejoliswe kuyo, ityhala i-disc, ibhola, okanye i-flap (kuxhomekeke kuyilo) kwindawo evulekileyo. Xa ukuhamba kuyeka okanye kuzama ukubuyisela umva, i-valve ivala ngokuzenzekelayo ngenxa ye-gravity, i-backpressure, okanye i-spring mechanism.
Lo msebenzi ozenzekelayo ukhusela umva, obaluleke kakhulu kwiinkqubo ezineempompo okanye i-compressors. Ekubeni akukho mfuneko yolawulo lwangaphandle, iivalve zokutshekisha zihlala zithathwa njengeevalve "ze-passive".

3. Uyilo kunye noLwakhiwo
Uyilo lweValve yeSango
Amacandelo aphambili evalve yesango abandakanya:

• Umzimba: Icasing yangaphandle egcina onke amalungu angaphakathi.
• Ibhonethi: Isigqubuthelo esisuswayo esivumela ukufikelela kwiindawo zangaphakathi zevalvu.
• Isiqu: Intonga enemisonto enyusa isango inyusa iphantsi.
• Isango (Idiskhi): Ilungu elisicaba okanye elimise okwe wedge elithintela okanye elivumela ukuhamba.
• Isihlalo: Indawo apho isango lihlala khona xa livaliwe, liqinisekisa itywina eliqinileyo.

Iivalvu zesango zinokuhlelwa ngokwezikhondo zesiqu ezinyukayo nezinganyukiyo. Iivalve zesikhondo ezinyukayo zibonelela ngezalathi ezibonwayo zokuba ingaba ivalve ivuliwe okanye ivaliwe, ngelixa uyilo lwesiqu olunganyukiyo lukhethwa apho indawo ethe nkqo ilinganiselwe.

Jonga uyilo lweValve
Iivalvu zokujonga ziza kwiindidi ezahlukeneyo, nganye inoyilo olwahlukileyo:

• I-Swing Check Valve: Isebenzisa idiskhi okanye iflap ejingayo kwihenjisi. Ivula kwaye ivale ngokusekelwe kwicala lokuhamba kwamanzi.
• Phakamisa iValve yokuHlola: I-disc ihamba phezulu kwaye ihla ngokuthe nkqo, ikhokelwa yiposi. Xa i-fluid ihamba ngendlela echanekileyo, i-disc iphakanyisiwe, kwaye xa ukuhamba kuyeka, i-disc ihla ukuze itywine i-valve.
• Ibhola yokujonga iValve: Isebenzisa ibhola ukuvala indlela yokuhamba. Ibhola iqhubela phambili ukuvumela ukuqukuqela kwamanzi nasemva ukuvalela umva.
• I-Piston Khangela iValve: Ifana nevalve yokukhangela yokuphakamisa kodwa ngepiston endaweni yediski, enika itywina eliqina ngakumbi.
• Uyilo lwevalvu yokutshekisha luxhomekeke kwiimfuno zenkqubo ethile, njengohlobo lolwelo, izinga lokuqukuqela, kunye noxinzelelo.

5. Izicelo
Izicelo zeVavu yeSango

• IiNkqubo zoBonelelo lwaManzi: Isetyenziselwa ukuqalisa okanye ukumisa ukuhamba kwamanzi kwimibhobho.
• Imibhobho yeoli negesi: Isetyenziselwa ukwahlula imigca yenkqubo.
• Iinkqubo zokunkcenkceshela: Lawula ukuhamba kwamanzi kwizicelo zezolimo.
• Izityalo zamandla: Isetyenziswa kwiinkqubo ezithwala umphunga, igesi, kunye nolunye ulwelo olunobushushu obuphezulu.

Jonga iiNkqubo zeValve

• Iinkqubo zempompo: Thintela umva xa impompo icinyiwe.
• Izityalo zokucoca amanzi: Thintela ukosuleleka ngokubuyela umva.
• Izityalo zokuLungisa iiKhemikhali: Thintela ukuxutywa kweekhemikhali ngenxa yokubuyela umva.
• Iinkqubo zeHVAC: Thintela ukuphuma ngasemva kolwelo olushushu okanye olubandayo kwiinkqubo zokufudumeza kunye nokupholisa.

Ukuqukumbela

Zombiniiivalve zesangokwayekhangela iivalvezidlala indima ebalulekileyo kwiinkqubo zolwelo kodwa zibe nemisebenzi eyahluke ngokupheleleyo. Aivalve yesangosisivalufa esijikeleza kabini esisetyenziselwa ukuqalisa okanye ukumisa ukuhamba kolwelo, ngelixa akhangela ivalveyivalve esetyenziswa ukuthintela umva. Iivalve zesango zisebenza ngesandla okanye ngokuzenzekelayo, ngelixa ii-valve zokujonga zisebenza ngokuzenzekelayo ngaphandle kokungenelela komsebenzisi.

Ukukhetha ivalve echanekileyo kuxhomekeke kwiimfuno ezithile zenkqubo. Kwizicelo ezifuna ukukhuselwa kokubuyela umva, sebenzisa ivalve yokujonga. Ukusetyenziswa apho ulawulo lwamanzi luyimfuneko, sebenzisa ivalve yesango. Ukukhethwa ngokufanelekileyo, ukufakwa kunye nokugcinwa kwezi valves kuya kuqinisekisa ukusebenza kakuhle kwenkqubo, ukuthembeka, kunye nokuphila ixesha elide.