Hauv kab lus no peb yuav txiav txim siab txog cov teeb meem tseem ceeb ntsig txog kev tsim kho cov kav dej los ntawm cov kav dej HDPE. Ua ntej koj pib tsim ib lub tsev, koj yuav tsum xav txog yuav ua li cas koj yuav muab cov khoom siv dej. Txhawm rau kom txo qhov kev puas tsuaj tsawg, nws yuav tsum ua tib zoo xaiv cov khoom siv. Thiab kev tsom xam yuav tsum tsis yog ntawm tus nqi, tab sis ntawm qhov zoo.
Ntau yam kav dej
Cov kav dej hlau yog qhov kev ntseeg siab heev. Tab sis nyob rau hauv cov kav dej ntawm cov tsev niaj hnub, lawv tau dhau los ua tsawg thiab tsawg dua. Cov kav hlau tuaj yeem ua los ntawm cov khoom hauv qab no:
- Steel.
- Cast iron.
- Copper.
Nyob rau xyoo tas los no, cov kav dej yas ua los ntawm cov polymers tau nrov heev:
- YPVC (polyvinyl chloride).
- Cross-linked polyethylene.
- Polyethylene (xws li HDPE).
- YPolypropylene.
Hlau-yas cov kav dej muaj qhov zoo ntawm cov polymers thiab hlau. Nqi ntawmntau tshaj li cov yas. Qhov feem ntau txhim khu kev qha thiab ruaj khov tooj liab kav. Tab sis lawv kim heev.
Qhov zoo ntawm HDPE kav
Ntawm qhov zoo ntawm HDPE kav dej yog cov hauv qab no:
- nplai tsis tau sau rau sab hauv;
- khoom tsis cuam tshuam los ntawm corrosion;
- siab stretch;
- lub teeb yuag;
- tsis xav tau kev rwb thaiv tsev ntxiv;
- kev teeb tsa yuav tsis ua rau muaj teeb meem txawm tias cov neeg pib tshiab;
- yas tsis muaj tshuaj lom nrog dej;
- khoom siv siab;
- muaj kev cuam tshuam muaj zog;
- nqi qis;
- tsis muaj xim hlau saj hauv dej.
Khoom tsis zoo
Tab sis HDPE kav dej rau cov kav dej muaj qhov tsis zoo:
- UV hluav taws xob muaj qhov cuam tshuam rau cov khoom siv.
- Thaum tso cov kav dej hauv av, qhov kev txav ntawm cov av yuav tsum raug coj mus rau hauv tus account.
- HDPE kav feem ntau siv tsis tau los tso dej kub.
- Lub zog qis dua cov hlau.
Tab sis tus nqi ntawm cov khoom siv tsawg heev, ntau tus neeg xaiv cov kav dej no rau kev tsim cov kav dej.
Ntau yam ntawm HDPE kav
Raws li kev faib cov kav dej tuaj yeem muab faib ua:
- Tsis-siab.
- Pressure.
Los ntawm lub hom phiaj, lawv muab faib ua hom hauv qab no:
- Tap.
- Gas pipelines.
- Sewer.
- Heat engineering.
- Technical.
- Cov kav dej siv los ua cov kav.
Cov txheej txheej ntawm cov kav dej HDPE tuaj yeem yog:
- Corrugated - siv rau hom tawv av. Cov yeeb nkab muaj ib txheej hauv du thiab ib txheej ntxhib.
- Smooth, uas yog siv rau hom mos hauv av.
Thov nco ntsoov tias hauv kev tsim cov kav dej yuav tsum siv cov kav dej siab uas muaj cim xiav. Yog tsis muaj siab rau cov hom phiaj no tsis haum. Txhawm rau ua kom dej kub, cov kav dej cim PE80 thiab PS100 yog qhov tsim nyog.
Kev xaiv cov kav dej
Txhawm rau txiav txim siab qhov zoo ntawm cov yeeb nkab yas, nws tsis tas yuav tsum ua cov tshuaj ntsuam xyuas thiab muab tso rau hauv qab xovxwm. Nws yog ib qho tsim nyog los ntsuas qhov pom ntawm tus mob, cov yeeb nkab yas zoo muaj cov yam ntxwv hauv qab no:
- khoom xim khoom, tuab tuab:
- ntawm qhov chaw muaj cov cim thiab cov cai ntawm cov chaw tsim khoom;
- nco ntsoov cov yeeb nkab yuav tsum ua raws li GOST;
- txhua tus yam ntxwv yuav tsum tau sau rau ntawm qhov chaw - lub zog, phab ntsa thickness, txoj kab uas hla;
- nws tus nqi yuav tsum tsis txhob qis dua li ntawm cov tuam txhab feem ntau.
Cov yeeb nkab yas tsis zoo tuaj yeem lees paub los ntawm cov yam ntxwv hauv qab no:
- muaj kev suav nrog.
- Cov xim ntawm cov khoom tsis muaj zog.
- Phab ntsa thickness txawv thoob plaws.
- Nco ntsoovkev kos npe (nws qhov kev tsis tuaj yeem tso cai tsuas yog hauv cov kav dej) nkaus xwb).
- Cov khoom yog heterogeneous.
- Tsis muaj cov ntaub ntawv tshwj xeeb ntawm cov yeeb nkab nto.
- Tus nqi ntawm cov yeeb nkab yog ntau zaus qis dua li ntawm lwm cov tuam txhab.
Cov kav dej tsis zoo yog tsim los ntawm cov khoom siv qis - lub raj mis, khob yas, thiab lwm yam. Yog li ntawd, lawv cov peev txheej tsawg heev, nws tuaj yeem ua tau 1-2 xyoos.
Yuav ua li cas rau nruab kav koj tus kheej?
Thaum tsim thiab tsim cov kav dej los ntawm cov kav dej HDPE, tag nrho cov yam ntxwv ntawm cov khoom yuav tsum raug coj mus rau hauv tus account. Kev teeb tsa yuav tsum tau ua nrog kev pab los ntawm cov chaw tshwj xeeb, lossis hauv av qhib. Yuav kom nteg cov kav dej yas, koj yuav tsum tau ua ib lub trench me me. Txhawm rau ua haujlwm, koj yuav xav tau cov cuab yeej hauv qab no:
- tapered riam.
- Txhim kho qhov muag.
- Hacksaw.
Fittings yog siv rau kev sib txuas. Namely:
- kev sib tw.
- kev sib tw.
- Tees.
- Plugs.
- Kev sib tw rau kab tseem ceeb.
Thaum lub sijhawm teeb tsa, koj yuav tsum txuas cov yeeb nkab rau cov dej thiab cov neeg siv khoom. Cov kav dej tsis tshua muaj kev hloov pauv tau yooj yim, tab sis lawv tsis tuaj yeem khoov tau; cov couplings yog siv rau lub hom phiaj no. Yog tias ua tau, nws yog qhov zoo dua los tig cov yeeb nkab maj mam, nyob rau hauv ib lub voj voog nrog lub vojvoog loj. Qhov no yuav ua rau kom muaj kev ntseeg siab ntawm cov khoom siv dej, vim tias cov kev sib txuas yuav tsawg tsawg.
