Izicelo kunye nemizekelo yeSekethe yeeValve zoNcedo kwiinkqubo zeHydraulic

NdinguVictor. Ndinefektri engama-6,000 m² eTshayina kwaye ndingumntu odumileyo ivalvu yokunceda ingcali.

A ivalvu yokunceda yivalvu yokulawula uxinzelelo lokungena. Xa uxinzelelo lokungena lufikelela kwixabiso elimiselweyo, izibuko levalvu liyavuleka ukuze ligcwale.

ivalvu yokuncedaii-s zibalulekile kwiinkqubo ze-hydraulic, ingakumbi kwiinkqubo zepompo ezifudukayo ezisisigxina—ngaphandle ivalvu yokunceda, inkqubo ayikwazi ukusebenza kakuhle.

Ulawulo loxinzelelo kunye nokuzinza

Le nkqubo isebenzisa ipompo yokufuduka esisigxina ukubonelela ngeoyile, kunye Ivalvu yoMxokelelwane okanye ivalvu yokulawula ukuhamba kwamanzi efakwe kumgca wokungena okanye wokubuyela umva. Oku kuvumela inxalenye yemveliso yeoyile yoxinzelelo yipompo ukuba ingene kwisilinda ukuze isebenze, ngelixa ioyile engaphezulu kufuneka ibuyele etankini ngevalvu yokunceda. Ivalvu yokunceda ihlala ikwimeko evulekileyo ngokwesiqhelo kuxinzelelo lwayo olumiselweyo.

Ukulungisa uxinzelelo lwentwasahlobo kulungisa uxinzelelo olusebenzayo lwenkqubo. Uxinzelelo olusebenzayo lwepompo lumiselwa yi ivalvu yokunceda's useto kwaye luhlala luhleli. Kule meko, ivalvu yokunceda isebenza njengeukulawula uxinzelelo nokuzinzisaisixhobo.

Ukhuseleko loKhuseleko (iValve yoKhuseleko)

Le nkqubo isebenzisa ipompo yokutshintshatshintsha-tshintshayo ukubonelela ngeoyile. Isiphumo sepompo sizivumelanisa ngokuzenzekelayo neemfuno ngotshintsho lomthwalo, ngoko ke akukho oyile igqithisileyo efuna ukugcwala, kwaye uxinzelelo olusebenzayo lumiselwa ngumthwalo.

I ivalvu yokunceda ibekwa kwindawo yokuphuma kwepompo kwaye ivuleka kuphela xa kukho ubuninzi bomthwalo, nto leyo enika ukhuseleko lokhuseleko kwinkqubo. ivalvu yokunceda kule nkqubo ikwabizwa ngokuba yiivalvu yokhuseleko, kwaye ihlalaivalwe rhoqongexesha lokusebenza kwesiqhelo kwenkqubo.

Ukuze inkqubo isebenze ngendlela eqhelekileyo, uxinzelelo lokuseta ivalvu yokhuseleko kufuneka lubeIngaphezulu nge-10%–20% kunoxinzelelo oluphezulu lokusebenza lwenkqubo.

Isetyenziswa njengePompo Ivalvu Yokukhulula

Xa i-solenoid inikwe amandla, i-remote control port ye-valve yokunceda eqhutywa yi-pilot iqhagamshela kwi-tank, iyiseta ngokufanelekileyo i- Ivalvu yoMqhubi Uhlengahlengiso luye kwi-zero. Kule ndawo, i-spool ephambili iphakama ngokukhawuleza nokuba kuphantsi kakhulu uxinzelelo lokungena, ikhulula ipompo ukuze kuncitshiswe ukulahleka kwamandla kunye nokuguguleka kwepompo.

Ulawulo loxinzelelo olukude

Qhagamshela i-port yokulawula yangaphandle ye-relief valve 1 kwindawo yokungena ye-valve yokulawula uxinzelelo ekude ekwindawo efanelekileyo (i-valve yokunceda 2). Xa i-solenoid ye-valve ekhokelayo ingasebenzi, indawo yayo ekunene iyasebenza, idibanisa i-port yokulawula yangaphandle ye-valve yokunceda eqhutywa yi-pilot 1 kwi-valve elawula uxinzelelo oluphantsi 2. Xa uxinzelelo lweoyile kwigumbi eliphezulu le-spool ephambili 1 lufikelela kuxinzelelo lokuseta lwe-valve yoxinzelelo oluphantsi 2, i-spool ephambili iyaphakama ukuze idlule (i-valve yayo yokuqhuba ayisasebenzi kulawulo loxinzelelo), ngaloo ndlela ifezekisaulawulo loxinzelelo olukude.

Ukuveliswa koxinzelelo lwasemva

Ukufakela ivalvu yokunceda kumgca wokubuyisela we-hydraulic cylinder kuthetha ukuba igumbi lokubuyisela linokunxibelelana netanki kuphela xa uxinzelelo lufikelela kwindawo yokuseta ivalvu, nto leyo edalauxinzelelo lomqolokwigumbi lokubuyisela isilinda. Oku kuthintela i-piston ukuba ingaqhubeki phambili xa umthwalo wehla ngequbuliso, nto leyo ephucula ukuguda kwezinto ezihambayo.

Kule meko, useto lwevalvu yokunceda luphantsi, kwayeivalvu yokunceda uxinzelelo oluphantsi esebenza ngqoNgokuqhelekileyo isetyenziswa.

Ulawulo loxinzelelo olunezigaba ezininzi

Ukudibanisa i-port yokulawula yangaphandle yevalvu yokunceda kwiivalvu ezininzi zokulawula uxinzelelo olukude ngevalvu eqondisa kwicala kwenza ulawulo loxinzelelo oluphantsi kakhulu olunezigaba ezininzi.

Ivalvu nganye kufuneka ibe nomsinga olinganisiweyo ofanayo nowepompo, nto leyo eyenza ukuba ibe nkulu ngobukhulu. Ke ngoko, olu lungiselelo lufanele kuphela iinkqubo ezineamazinga amancinci okuhamba kwamanzi.

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