Ntau tus neeg sivrotary pob qij txhanquag ntsib cov ntsiab lus "mechanical seal" thiab "hydraulic seal," tab sis lawv feem ntau tawm tsam kom hais meej qhov sib txawv ntawm qhov sib txawv. Nws tsis yog qhov nyuaj heev; cia wb sib tham hauv cov lus yooj yooj yim.
Ua ntej, cia peb tham txog mechanical seals. Cov no yog cov ntau hom, tshwj xeeb tshaj yog nyob rau hauv cov pob qij txha teb. Lub tswv yim tseem ceeb yog nyob ntawm ob lub ntsej muag zoo heev sealing lub ntsej muag nias kom nruj ua ke - ib qho tig nrog lub ncej, lwm qhov tseem nyob ruaj khov - tsim cov yeeb yaj kiab nyias ntawm lawv. Cov yeeb yaj kiab no ua haujlwm rau ob lub hom phiaj: txo kev sib txhuam thaum tib lub sijhawm tiv thaiv cov txheej txheem dej (nruab nrab) los ntawm kev tawm. Qhov no suab me ntsis "precision-oriented," thiab qhov tseeb nws yog; mechanical seals impose kuj siab xav tau ntawm ob qho tib si raug precision thiab installation raug.
Qhov zoo ntawm cov tshuab foob muaj xws li kev sib khi zoo tshaj plaws, tsim nyog rau siab -kev sib hloov ceev, thiab lub neej ua haujlwm ntev. Txawm li cas los xij, lawv muaj qhov tsis zoo: lawv yog me ntsis "lawv." Yog tias impurities nkag mus rau hauv lub cev, lossis yog tias muaj kev sib txhuam qhuav tshwm sim (xws li, khiav tsis muaj dej tam sim no), cov ntsaws ruaj ruaj tuaj yeem yooj yim raug kev txom nyem ntau dhau los yog hlawv tawm. Yog li ntawd, lawv txoj kev siv feem ntau xav kom cov txheej txheem ua kua kom huv si, thiab nws yog ib qho tseem ceeb kom ntseeg tau tias qhov sib koom ua ke tsis qhuav ua ntej pib.
Tom ntej no, cia peb saib hydraulic seals. Txoj hauv kev no yog qhov tseeb me ntsis ntxiv, feem ntau siv ntau hom kev sib khi lub nplhaib- xws li O- nplhaib lossis di ncauj seals. Lawv cov txheej txheem sealing feem ntau yog nyob ntawm cov roj hmab lossis lwm cov ntaub ntawv elastic uas nias ruaj khov tiv thaiv qhov chaw sib cuag hauv qab cov kua dej. Lawv muaj cov qauv yooj yim, tus nqi qis, thiab feem ntau yog "rugged" thiab muaj zog hauv kev ua haujlwm.
Qhov zoo ntawm hydraulic seals muaj xws li durability thiab muaj zog tiv thaiv impurities; Tsis tas li ntawd, lawv muaj kev nruj me ntsis rau kev teeb tsa, ua rau lawv haum rau cov ntawv thov uas tsis muaj kev ua haujlwm tshwj xeeb. Txawm li cas los xij, lawv muaj kev txwv: nyob rau hauv qhov kev sib hloov ceev, qhov kub thiab txias, lossis kev kub siab, lawv nquag hnav thiab deformation. Lawv cov sealing kev ua tau zoo tsis ruaj khov raws li cov khoom siv sealing, thiab dhau sijhawm, cov khoom yuav muaj hnub nyoog lossis tawv, uas ua rau cov kua dej tawm.
Txhawm rau ua kom yooj yim: cov ntsaws ruaj ruaj yog cov "cov neeg ua yeeb yam," zoo tshaj plaws rau kev xav tau, siab - ib puag ncig ceev; hydraulic seals yog "cov neeg ua haujlwm ruaj khov," zoo tagnrho rau cov qauv kev ua haujlwm thiab tus nqi - cov ntawv thov nkag siab.
Thaum kawg, qhov kev xaiv ntawm ob yog nyob ntawm qhov chaw ua haujlwm tshwj xeeb- yam xws li kev sib hloov ceev, qhov kub thiab txias, dej huv, kev txwv nyiaj txiag, thiab lwm yam. Tsis txhob dig muag caum tom qab qhov "siab tshaj plaws" kev xaiv; xaiv qhov kev daws teeb meem tiag tiag * tsim nyog * rau koj cov kev xav tau yog qhov tseem ceeb. Los ntawm kev nkag siab txog qhov sib txawv ntawm ob hom kev sib khi no, koj tuaj yeem zam ntau qhov teeb meem thaum xaiv thiab tu cov txheej txheem.