Ivalve encinci yokuhamba, eyaziwa ngokuba yi-automatic recirculation valve, yivalve yokukhusela impompo efakwe kwindawo yokuphuma impompo ye turbine enezigaba ezininzi ezithe nkqo ukukhusela umonakalo obangelwa ukushisa, ingxolo enkulu, ukungazinzi kunye ne-cavitation xa ipompo isebenza ngaphantsi komthwalo. . Ngethuba nje izinga lokuhamba kwempompo lingaphantsi kwexabiso elithile, i-bypass return port yevalve iya kuvula ngokuzenzekelayo ukuze kuqinisekiswe umlinganiselo omncinci wokuhamba ofunekayo kumanzi.

1. Umgaqo wokuSebenza

Ivalve encinci yokuhamba iqhagamshelwe kwindawo yokuphuma impompo ye turbine enezigaba ezininzi ezithe nkqo . Njengevalve yokutshekisha, ixhomekeke kwi-thrust ye-medium ukuvula i-disc valve. Xa uxinzelelo oluphambili lwesiteshi luhlala lungatshintshi, izinga lokuhamba komjelo oyintloko lihluke, kwaye ukuvulwa kwediski ye-valve kuyahluka. Ivalve engundoqo I-flap iya kumiselwa kwindawo ethile, kwaye i-valve flap yesekethe eyintloko iya kuhambisa isenzo se-valve engundoqo ye-flap kwi-bypass ngokusebenzisa i-lever ukuqonda imeko yokutshintsha kwe-bypass.

2. Inkqubo yokusebenza

Xa i-disc ye-valve engundoqo ivula, i-disc ye-valve iqhuba isenzo se-lever, kwaye i-lever force ivala i-bypass. Xa izinga lokuhamba kumjelo oyintloko liyancipha kwaye i-disc ye-valve engundoqo ayikwazi ukuvulwa, i-disc ye-valve engundoqo iya kubuyela kwindawo yokutywina ukuvala umjelo oyintloko. Idiskhi yevalvu iphinda iqhube intshukumo yeleva, i-bypass iyavula, kwaye amanzi aqukuqela ukusuka kwi-bypass ukuya kwi-deaerator. Ngaphantsi kwesenzo soxinzelelo, amanzi ageleza kwi-inlet yempompo kwaye aphinde ajikeleze, ngaloo ndlela ekhusela umpompo.

3. Inzuzo

Ubuncinci bevalve (ekwabizwa ngokuba yivalve yokulawula ngokuzenzekelayo, ivalve yokubuyisela ngokuzenzekelayo, ivalve yokubuyela ngokuzenzekelayo) yisivalo esinemisebenzi emininzi edityaniswe kwenye.

eziluncedo:

1. Ubuncinci bevalve yivalve yokulawula ezisebenza ngokwayo. Umsebenzi we-lever uya kulungelelanisa ngokuzenzekelayo ukuvulwa kwe-bypass ngokwezinga lokuhamba (ukulungiswa kokuhamba kwenkqubo). Inokwakheka komatshini ngokupheleleyo kwaye ixhomekeke kwivalve yokulawula ukuhamba kwaye ayifuni amandla ongezelelweyo.

2. I-bypass flow flow ingalungiswa kwaye ilawulwe, kwaye ukusebenza ngokubanzi kwevalve kuqoqosho kakhulu.

3. Zombini umjelo oyintloko kunye nomsebenzi wokudlula njengeevalve zokujonga.

4. Isakhiwo se-T esineendlela ezintathu, ezifanelekileyo kwimibhobho yokubuyisela kwakhona.

5. I-Bypass ayifuni ukuhamba okuqhubekayo kunye nokunciphisa ukusetyenziswa kwamandla.

6. Imisebenzi emininzi ehlanganiswe kwelinye, ukunciphisa umsebenzi woyilo.

7. Ineenzuzo ezibalulekileyo zeendleko ngokubhekiselele ekuthengeni imveliso kwangaphambili, ukufakwa kunye nokulungelelaniswa, kunye nokugcinwa kamva, ukunciphisa iindleko zokufakela kunye nokugcinwa, kunye neendleko ezipheleleyo ziphantsi kuneendlela zokulawula i-valve yendabuko.

8. Ukunciphisa ithuba lokungaphumeleli, ukunciphisa ukuhluleka okubangelwa yi-high-speed fluid, kunye nokuphelisa iingxaki ze-cavitation kunye neendleko ze-wiring zombane.

9. Ukusebenza okuzinzileyo kwemigangatho emininzi impompo yeinjini ethe nkqo isenokuqinisekiswa phantsi kweemeko zokuhamba okuphantsi.

10. Ukukhuselwa kwempompo kufuna i-valve enye kuphela kwaye akukho nezinye izinto ezongezelelweyo. Ekubeni ayichatshazelwa ziziphene, umjelo oyintloko kunye ne-bypass ibe yinto yonke, eyenza ukuba iphantse igcinwe-free.

4. Ukufakwa

Ivalve encinci yokuhamba ifakwe kwindawo yokuphuma yempompo kwaye kufuneka ifakwe ngokusondeleyo kangangoko kunokwenzeka kwimpompo ye-centrifugal ekhuselweyo. Umgama phakathi kokuphuma kwempompo kunye ne-inlet ye-valve akufanele idlule i-1.5 yeemitha ukukhusela ingxolo ye-low-frequency ebangelwa yi-pulsation yolwelo. Ihamile yamanzi. Isalathiso sokujikeleza sisuka ezantsi ukuya phezulu. Ufakelo oluthe nkqo luyakhethwa, kodwa ukufakela okuthe tye nako kunokwenzeka.

Izilumkiso zoLondolozo, ukuKhathalela kunye nokuSetyenziswa

1. Ivalve kufuneka igcinwe kwigumbi elomileyo, elinomoya, kwaye zombini iziphelo zeshaneli yevalve kufuneka zivalwe.

2. Iivalvu ezigcinwe ixesha elide kufuneka zihlolwe rhoqo ukususa ukungcola. Ingqwalasela ekhethekileyo kufuneka ihlawulwe ekucoceni kwendawo yokutywina ukukhusela umonakalo kwindawo yokutywina.

3. Ngaphambi kokufakela, kufuneka uhlolisise ngenyameko ukuba uphawu lwevalve luhambelana neemfuno zokusetyenziswa.

4. Ngaphambi kokufakela, khangela i-cavity yangaphakathi kunye nokutywinwa kwendawo yevalve. Ukuba kukho ubumdaka, busule ngelaphu elicocekileyo.

5. Ivalve kufuneka ihlolwe rhoqo emva kokusetyenziswa ukujonga indawo yokutywina kunye ne-O-ring. Ukuba yonakele kwaye iyasilela, kufuneka ilungiswe okanye itshintshwe ngexesha.