Txhawm rau xaiv cov li qub, ua ntej ntawm tag nrho cov, peb yuav tsum paub qhov kev ua haujlwm nruab nrab, cov yam ntxwv ntws, thiab qhov kub thiab txias, siab, ntws tus nqi, ntws thiab lwm yam kev ua haujlwm. Tom qab ntawd, ua ke nrog cov txheej txheem, kev ua haujlwm, kev nyab xeeb thiab lwm yam, peb yuav tsum xaiv cov khoom sib xws, cov qauv tsim, qauv thiab cov lus qhia tshwj xeeb ntawm cov li qub.
Xaiv cov li qub raws li cov yam ntxwv ntws
Cov duab ntawm lub valve qhib thiab kaw qhov chaw thiab valve ntws dhau ua rau lub valve muaj qee yam kev ntws. Qhov no yuav tsum tau coj mus rau hauv tus account thaum xaiv li qub.
(1) valve rau txiav tawm thiab txuas nruab nrab
Feem ntau, lub valve nrog me me ntws tsis kam thiab los ntawm ntws channel raug xaiv. Hom valve no muaj lub rooj vag valve, nres valve, plunger valve. Downward kaw valve, vim yog zigzag ntws txoj kev, ntws tsis kam siab dua lwm yam li qub, yog li kev xaiv tsawg dua. Txawm li cas los xij, nyob rau hauv cov ntaub ntawv ntawm kev khiav hauj lwm siab, kaw valve kuj tuaj yeem xaiv.
(2) valve rau ntws tswj
Feem ntau xaiv lub valve uas yooj yim los kho qhov ntws. Piv txwv li, regulating valve, throttle valve thiab plunger valve, vim hais tias nws lub rooj zaum loj yog nyob rau hauv ncaj qha proportional rau stroke ntawm lub oob khab. Teb (xws li ntsaws valve, pob valve, npauj npaim valve) thiab flex (pinch valve, diaphragm valve) li qub kuj tseem siv tau rau kev tswj lub cev, tab sis lawv feem ntau tsuas yog siv tau nyob rau hauv qhov txwv valve txoj kab uas hla. Feem ntau, tib neeg feem ntau hloov cov duab ntawm lub disc ntawm qhov nres valve rau throttling. Nws yuav tsum tau taw qhia tias nws tsis tsim nyog los hloov qhov qhib qhov siab ntawm lub rooj vag valve lossis nres valve kom ua tiav throttling. Vim tias qhov nruab nrab hauv lub raj xa dej yog nyob rau hauv lub xeev throttling, tus nqi ntws yog siab heev, lub sealing nto yog yooj yim los ntxuav thiab hnav, thiab sealing muaj nuj nqi poob. Ib yam li ntawd, nws yog qhov tsis tsim nyog siv lub throttle valve raws li cov cuab yeej txiav.
(3) valve rau reversing thiab diverting
Raws li qhov xav tau ntawm kev thim rov qab thiab shunting, lub valve tuaj yeem muaj ob lossis ntau txoj hauv kev, uas tsim nyog rau kev xaiv cov ntsaws valve thiab pob valve. Feem ntau ntawm cov li qub siv rau kev thim rov qab thiab hloov pauv yog hom no. Qee qhov xwm txheej, lwm hom li qub, nrog ob lossis ntau dua tsuas yog txuas rau ib leeg, kuj tuaj yeem siv los ua kev sib hloov thiab shunting ntawm xov xwm.
(4) valve rau nruab nrab nrog tshem tawm hais
Yog tias qhov nruab nrab tau tshem tawm cov khoom, nws yog qhov tsim nyog los siv nws qhov qhib thiab kaw qhov chaw kom xaub lub valve nrog kev ua haujlwm ntawm kev sib khi, xws li lub rooj vag tiaj tus.
