Lub raj xa dej hauv lub valve tsis yog qhov yooj yim raws li cov yeeb nkab ncaj nraim - muaj ntau yam tshwj xeeb - zoo li lub luj tshib, tees, reducers, li qub, thiab cov nyiaj them poob haujlwm. Nws tsis tuaj yeem siv ncaj qha rau lub Hoobkas-prefabricated ncaj qha faus cov kav dej thiab yuav tsum tau ua tiav ntawm qhov chaw. Cov khoom no yog raws nraim qhov teeb meem feem ntau tshwm sim nyob rau hauv tag nrho cov kav dej.
Cov txheej rwb thaiv tsev ntawm cov yeeb nkab ncaj nraim yog nchuav thiab molded hauv ib qho mus rau hauv lub Hoobkas, thiab qhov zoo yog tswj tau. Txawm li cas los xij, qhov tshwj xeeb - zoo li qhov chaw thiab cov txheej txheem rwb thaiv tsev hauv lub valve zoo yuav tsum tau ua rau ntawm qhov chaw, thiab muaj ntau txoj hauv kev tseem ceeb. Rau qhov sib txawv ntawm - txoj kab uas hla cov yeeb nkab, kiv cua- cov khoom siv rwb thaiv tsev zoo tuaj yeem siv los qhwv. Rau cov khoom uas muaj cov duab nyuaj xws li li qub thiab flanges, lawv tuaj yeem raug txiav nrog cov ntaub ntawv rwb thaiv tsev yooj yim (xws li ceramic fiber xav, airgel xav), qhwv hauv ntau txheej, thiab tom qab ntawd kho nrog lub hnab airgel. Qee qhov dej num yuav siv prefabricated rwb thaiv tsev shells - lub rwb thaiv tsev plhaub yog ua ntej- ua nyob rau hauv lub Hoobkas raws li cov duab tshwj xeeb - zoo li tus seem thiab ntsia ncaj qha rau ntawm qhov chaw.
Qhov nyuaj ntawm insulating lub valve zoo yog sealing. Lub patching ntawm cov yeeb nkab ncaj yog twb tsis muaj zog txaus. Muaj ntau qhov tshwj xeeb- zoo li qhov thiab cov pob qij txha hauv lub valve zoo, ua rau kev sib khi nyuaj dua. Yog tias lub foob tsis nruj, cov dej sawv ntsug thiab cov dej noo hauv qhov dej yuav nkag mus rau hauv lub rwb thaiv tsev. Lub qhov dej ntawm lub qhov dej yog qhov chaw uas cov dej tau yooj yim sib sau ua ke - cov dej nag rov qab, cov dej hauv av nkag mus, thiab dej - muaj cov haujlwm thaum tu yuav ua rau ntev - cov dej noo hauv qhov dej. Yog li ntawd, nyob rau hauv tas li ntawd mus rau lub rwb thaiv tsev txheej nws tus kheej, lub waterproof sealing ntawm lub txheej tiv thaiv txheej kuj tseem ceeb heev rau lub rwb thaiv tsev nyob rau hauv lub valve zoo. Qee qhov dej num yuav siv cov txheej txheem dej tsis muaj dej los yog qhwv cov ntaub thaiv dej tawm sab nraum txheej txheej rwb thaiv tsev.
Qhov chaw hauv lub valve zoo yog me me, ua rau nws tsis yooj yim rau kev khiav lag luam, thiab kev tsim kho zoo yog qhov nyuaj rau lav. Qhov no yog vim li cas ntau cov yeeb nkab network xau thawj zaug tshwm sim nyob ze lub qhov dej - muaj ntau yam tshwj xeeb - zoo li tus, sealing nyuaj, thiab ib puag ncig ntub, tag nrho peb yam tseem ceeb superimposed. Kev them nyiaj txaus rau cov rwb thaiv tsev hauv lub valve zoo thaum lub sij hawm tsim thiab kev tsim kho theem tuaj yeem txuag tau ntau yam teeb meem tom qab.