1 Kev tshuaj xyuas cov khoom
(1) Kev tshuaj xyuas cov kav dej thiab fittings
Cov yeeb nkab loj yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm cov qauv tshwj xeeb, cov yeeb nkab kawg yuav tsum qhia cov qauv kev siv ntawm cov ntaub ntawv, specifications thiab hom, thiab muab cov khoom pov thawj zoo thiab cov ntsiab lus txais. Sab hauv ntawm cov yeeb nkab yuav tsum du, tsis muaj cracking, txheej, pinholes, impurities, tsis zoo kua nplaum cheeb tsam thiab npuas, thiab lwm yam. Qhov kawg lub ntsej muag ntawm cov yeeb nkab yuav tsum yog txawm, tsis muaj burrs, thiab tsis pom tseeb tawg, txheej thiab lwm yam tsis xws luag. sab nrauv. Txhua qhov chaw sab hauv thiab sab nraud ntawm lub qhov (socket) ntawm lub raj yuav tsum du, tsis muaj kab nrib pleb, tawg lossis lwm yam tsis xws luag ua rau kev ua haujlwm ntawm qhov sib koom ua ke. Kauj ruam thiab kawg lub ntsej muag ntawm O-ring zawj yuav tsum tau sib koom ua ib qho, tsis muaj stratification. Lub thickness ntawm cov yeeb nkab yuav tsum tau raws li qhov yuav tsum tau siv.
(2) Txais kev sealing roj hmab nplhaib rau cov kabmob thiab ntxig
Sealing rubber ring is strictly prohibited to use recycled rubber, its appearance should be intact, no joints, no cracks, impurities and bubbles on the surface, specifications, appearance size must be consistent with the processing size of the pipe ring groove, rubber ring section diameter difference shall not exceed ±0.5mm, rubber ring diameter difference shall not exceed ±10mm. Rubber ring performance indicators to ensure sealing, no leakage shall prevail, generally should meet the following requirements: hardness (Shaw A)45 ~ 55; Tensile strength is greater than 16 MPa; Elongation >5 00% ; Kev deformation tas mus li tsawg dua 20 feem pua; Kev laus coefficient 0.8 (70 degree / 44h).
2 Pipeline tuav
(1) Lub raj xa dej yuav tsum maj mam thauj khoom thiab ua haujlwm hauv cov txheej txheem ntawm kev thauj khoom thiab tshem tawm, thiab nws raug txwv nruj kom tsis txhob poob lossis tsoo.
(2) Txoj haujlwm ua haujlwm ntawm lub raj xa dej thauj khoom thiab tshem tawm lub tshuab thiab cov cuab yeej yuav tsum ruaj khov, thiab lub peev xwm nqa lub tshuab thiab cov cuab yeej yuav tsum txhim khu kev qha.
(3) Lub raj xa dej tuaj yeem nqa tau los ntawm ib lossis ob lub ntsiab lus txhawb nqa. Txhawm rau kom muaj kev sib npaug ntawm cov raj xa dej hauv huab cua, nws yog txwv tsis pub thauj khoom thiab tshem tawm cov kav dej los ntawm ob qho kawg ntawm cov kav dej nrog txoj hlua.
(4) Cov hlua nqa siv rau kev thauj khoom thiab thauj khoom yuav tsum hloov tau yooj yim thiab dav siv, hlua lossis hlua. Nws yog nruj me ntsis txwv tsis pub nqa cov yeeb nkab nrog hlau hlua los yog saw.
3 Cov khoom siv cia
(1) Thaum lub raj xa dej tuaj txog ntawm qhov chaw, nws yuav tsum tau thauj mus rau qhov chaw ua haujlwm sib txuas rau kev tsim kho tam sim. Yog tias qhov kev tsim kho tsis tuaj yeem ua tiav tam sim vim yog qhov tsis tuaj yeem tiv taus, cov yeeb nkab yuav tsum tau khaws cia zoo.
(2) Cov khoom sib txuas ntawm FRP cov kav dej feem ntau yog cov iav fiber ntau, cov xov paj, cov iav fiber ntau thiab lwm yam khoom siv ntxiv thiab cov resins, curing agent, accelerator, anti-aging agent thiab lwm yam ntaub ntawv matrix nrog rau txhua yam cement, thiab lwm yam. Cov ntaub ntawv no yuav tsum tau muab khaws cia rau hauv qhov chaw qhuav kom tsis muaj hnub ci ncaj qha. Lub nplhaib roj hmab yuav tsum tau tiv thaiv los ntawm lub hnub thiab deb ntawm tshav kub, tsis txhob kov cov roj thiab cov kuab tshuaj organic. Cov yeeb nkab thiab fittings yuav tsum tau muab tso rau raws li hom, qhov tshwj xeeb thiab qib, thiab cov padding mos yuav tsum tau ntxiv ntawm cov khaubncaws sab nraud povtseg. Lawv yuav tsum khaws cia kom deb ntawm qhov chaw tshav kub thiab cov khoom tawg thiab tawg, thiab yuav tsum tsis txhob muab cia rau hauv qhov chaw qhib rau lub sijhawm ntev los tiv thaiv kev tawg thiab tshav ntuj.
(3) Thaum cov kav dej khaws cia ncaj qha rau hauv av, hauv av yuav tsum tiaj tus. Nws yog txwv tsis pub khaws cov kav dej ntawm cov khoom ntse ntse, thiab cov kav dej yuav tsum tau muab tso rau hauv cov ntoo wedges kom tsis txhob dov.
(4) Cov kav dej yuav tsum tau khaws cia raws li kev qhia tshwj xeeb. Cov neeg pw tsaug zog yuav tsum tau muab tso rau hauv ib txheej ntawm txhua pawg, spaced tsawg dua 1/2 yeeb nkab ntev sib nrug. Pipeline stacking qhov siab yuav tsum tsis txhob siab tshaj 2 meters, DN1400 los yog ntau dua pipelines yuav tsum tsis txhob stacked.
4 Base zawj kho
(1) Kev khawb av
1) Mechanical excavation yog tsuas yog siv rau trench excavation. Artificial excavation ua ib txoj kev ntxiv. Lub trench hauv qab nto yuav tsum tsis tu ncua du thaum khawb. Ditch phab ntsa yuav tsum tau txiav txim siab raws li qhov xwm txheej ntawm txoj kab nqes. Kom muaj kev nyab xeeb. Tshem cov pob zeb loj dua 38mm hauv txoj kab uas hla lossis pob zeb angular loj dua 25mm. Thiab tshem tawm cov kwj deg yuav ntog, khob qhov khoom. Txhawm rau tiv thaiv kev puas tsuaj rau cov yeeb nkab.
2) Qhov luaj li cas ntawm qhov zawj yuav tsum ua tau raws li qhov xav tau ntawm cov ntaub ntawv tsim. Kuj yuav tsum tau ua raws li GB50268-97, CECS129:2001 cov kev cai; Qhov dav ntawm qhov zawj yuav tsum yooj yim rau kev tso thiab kev teeb tsa ntawm cov kav dej, kev ua haujlwm ntawm lub tshuab tamping thiab tso cov dej hauv av, thiab qhov tsawg kawg nkaus qhov dav ntawm qhov zawj B yuav tsum raug xam raws li cov qauv hauv qab no:
B Ntau dua lossis sib npaug rau D ntxiv 2 s
Qhov twg b -- qhov tsawg kawg nkaus qhov dav ntawm qhov zawj (mm);
D -- Tube sab nraud txoj kab uas hla (mm)
S -- Qhov deb ntawm cov yeeb nkab phab ntsa mus rau phab ntsa zawj (mm)
