Dab tsi yog cov kav dej haus

Vim li cas qee cov neeg nyob hauv tib qho chaw, thiab cov dej zoo sib txawv ntawm cov dej uas lawv haus thiab cov dej uas lawv siv hauv ib hnub? Kev tsom mus rau qhov kawg ntawm cov kav dej hauv nroog hauv nroog, thiab qhov sib txawv ntawm txhua tsev neeg txoj kev xaiv cov kav dej thaum kho kom zoo nkauj. Yog li ntawd, nyob ntawm lub nroog, cheeb tsam koj nyob, qhov zoo ntawm cov dej yuav ua tau zoo los yog phem.

Cov hauv qab no yog ob peb lub kav dej haus hauv tsev:

cev tooj

Cov kav dej tooj liab tsis yooj yim rau xeb, tab sis tom qab siv mus ntev, nws yuav tsis muaj xeb thiab tsim patina. Nyob rau tib lub sijhawm, cov ntsiab lus tooj liab ion hauv dej yuav nce mus rau qib zoo heev. Cov tooj liab ntau ntxiv tuaj yeem tua cov kab mob tiag tiag, tab sis kev ua phem rau tib neeg lub cev tsis tuaj yeem kwv yees.

stainless hlau yeeb nkab

Nws tsis yooj yim rau xeb, tab sis kev tsim kho yog qhov nyuaj thiab kim, thiab nws tsis tshua muaj siv hauv cov vaj tsev zoo tib yam.

polypropylene tube

Ib qho ntawm cov ntaub ntawv no tsuas yog ob peb xyoos dhau los, tab sis nws txoj kev siv hauv cov kav dej siv tau zoo heev. Tam sim no, cov kav dej hauv tsev uas feem ntau pom zoo los yog yuav tsum tau ua nyob rau hauv cov zej zog tsim tshiab, ntxiv rau cov teeb meem kev nyab xeeb, kuj yooj yim rau txheej txheem vim lawv cov khoom kub-kua, thiab tib lub sij hawm ntsuas cov qib kev lag luam ntawm ib lub teb chaws, nws yog polypropylene.

PP yeeb nkab muaj cov yam ntxwv ntawm corrosion kuj, tsis muaj scaling, thiab ntev kev pab cuam lub neej. Vim nws cov phab ntsa du, tsis tshua muaj kev sib txhuam coefficient thiab cov dej muaj zog permeability, nws kuj txo qhov muaj peev xwm ntawm cov nplai hauv cov raj xa dej, thiab tsis muaj teeb meem ion pollution.

Polypropylene kav uas ua tau raws li cov qauv yog cov khoom ntsuab thiab tsis muaj teeb meem rau tib neeg lub cev, uas yog, cov dej tsis zoo yuav tsis deteriorate dua vim yog ntws los ntawm cov kav dej yas.

PPR cev

Rau cov kav dej polypropylene, tib neeg paub txog PP-R (polypropylene random) kav.

PP-R yeeb nkab yog ib hom yeeb nkab dej ntshiab, uas tuaj yeem siv los ua cov yeeb nkab dej txias lossis cov yeeb nkab dej kub. Cov khoom siv raw khoom molecules ntawm PP-R tsuas yog carbon thiab hydrogen, thiab tsis muaj teeb meem thiab tshuaj lom. Cov pob qij txha txuas nrog kub yaj, uas tsis txhob muaj cov tshuaj lom ntawm cov pob qij txha.