Wazi kangakanani malunga nezivalo zetshekhi?

1. Yintoni ivalve yokukhangela? 7. Uthini umgaqo wokusebenza?

　　Khangela ivalveligama elibhaliweyo, kwaye ngokuqhelekileyo libizwa ngokuba yivalve yokukhangela, ivalve yokukhangela, ivalve yokukhangela okanye ivalve yokukhangela emsebenzini. Kungakhathaliseki ukuba ibizwa njani, ngokwentsingiselo yokoqobo, sinokugweba ngokucacileyo indima yevalve yokukhangela ukuthintela ulwelo ukuba lungabuyeli emva kwinkqubo kunye nokuqinisekisa ukuba ulwelo lunokuhamba kuphela kwicala elimiselweyo. Ukuvulwa nokuvalwa kwevalve yokukhangela kugqitywe ngamandla okuhamba kwamanzi, ngoko ke ivalve yokukhangela luhlobo lwevalve oluzenzekelayo. Ngenxa yeempawu zayo, umlinganiselo wokusetyenziswa kweevalve zokuhlola ebomini bukhulu kakhulu.

Mbini. Intshayelelo yokwahlulahlula iivalvu zokutshekisha

Iivalve zethu eziqhelekileyo kunye neziqhelekileyo ezisetyenziswayo zokukhangela ngokubanzi zineentlobo ezintathu: uhlobo lokuphakamisa, uhlobo olujikelezayo kunye nodidi lwediski. Oku kulandelayo kwazisa ngokwahlukeneyo iimpawu zeevalvu ezintathu ezahlukeneyo zokujonga:

1. Intshayelelo yokunyusa ivalve yokukhangela

I-valve yokukhangela i-Lift yahlulwe ibe ziindidi ezimbini: i-horizontal kunye nethe nkqo ngokwendlela yokubeka isixhobo. Nokuba ithe tye okanye ithe nkqo, ihamba ecaleni kwe-axis ukugqiba ukuvula nokuvala.

A. Kwezinye iiprojekthi ezifuna ubunjineli obuphezulu obuphezulu, sisebenzisa iivalvu zokukhangela ezithuleyo ngokubanzi. Ngokuqhelekileyo, sifaka i-valve yokutshekisha kwindawo yokuphuma yempompo;

B. Ngokuqhelekileyo, iivalve zokuhlola ukuthulisa zisetyenziswa ngokubanzi kunikezelo lwamanzi kunye nenkqubo yokuhambisa amanzi kwizakhiwo eziphakamileyo. Ukuze ugweme ukuvalelwa, ivalve yokujonga ukuthulisa ayisetyenziselwanga ukukhutshwa kwamanzi amdaka;

C. Ukukhutshwa kwamanzi amdaka kulawulwa yivalve yokuhlola ethe tye. Ngokuqhelekileyo isetyenziselwa ukuxhasa iindawo zasekuhlaleni ezifana ne-drainage kunye neempompo zogutyulo.

2. Iivalve zokujonga i-Rotary zihlulwe zibe ziintlobo ezintathu: i-valve enye, i-valve ephindwe kabini kunye ne-valve eninzi ngokweendlela zabo zokutshekisha ezahlukeneyo. Umgaqo wabo wokusebenza kukugqiba ukujikeleza ngokusebenzisa iziko layo kwaye emva koko ugqibe ukuvula nokuvala.

A. Ukusetyenziswa kweevalvu zokutshekisha ezijikelezayo kuqinisiwe, kwaye ngokuqhelekileyo kusetyenziswa kwiinkqubo zokubonelela ngamanzi ezidolophini, kodwa ayifanelekanga kwimibhobho yogutyulo olunentlenga eninzi;

B. Phakathi kweevalve ezahlukeneyo zokujonga i-rotary, ivalve yokukhangela igqabi elinye isetyenziswa kakhulu. Ayifuni umgangatho ophezulu we-fluid kwaye isetyenziswa rhoqo kunikezelo lwamanzi kunye ne-drainage, i-petroleum, ikhemikhali, i-metallurgical kunye neminye imisebenzi. Ngokukodwa kwezinye iindawo ezithintelweyo, ivalve yokukhangela igqabi elinye isetyenziswe kakhulu;

I-3, ukuqaliswa kwe-disc-type check valve

A. Iivalvu zokukhangela idiskhi ziqhelekile ngokuthe ngqo. Iivalvu zokujonga ivalvu ephindwe kabini yohlobo lwebhabhathane zisetyenziswa kakhulu kunikezelo lwamanzi kunye nokuhanjiswa kwamanzi kwizakhiwo eziphakamileyo, kwaye ezinye iincindi ziyadleka okanye zisetyenziswe kwezinye iinkqubo zogutyulo;