Txoj kab uas hla ntawm cov kav dej polyethylene: sab nraud, sab hauv, lub hom phiaj ntawm cov kav dej

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Hnub no, cov kav dej polyethylene tau siv dav hauv kev kho thiab tsim cov kav dej, hauv cov kav dej tsis siv neeg, hauv kev tsim cov pas dej da dej thiab kev tsim kho cov dej hauv artesian. Nyob rau tom kawg, peb tab tom tham txog kev thauj mus los hauv av.

Txawm li cas los xij, ua ntej yuav cov khoom lag luam zoo li no, nws yog ib qho tseem ceeb kom paub koj tus kheej nrog qee qhov kev txwv, ntawm lawv lub hom phiaj, sab hauv thiab sab nraud, nrog rau cov yam ntxwv thiab kev ua haujlwm. Nyob rau hauv polyethylene, zoo li nyob rau hauv lwm yam ntaub ntawv, lub Scope yog vim lub cev muaj zog. Niaj hnub no, tsis tshua muaj, siab thiab nruab nrab siab polyethylene paub, uas nyob ntawm txoj kev tsim khoom.

Applications

High density polyethylene muaj lub zog qis tshaj plawssiab. Nws yog siv nyob rau hauv kev tsim cov kav dej phwj thiab ua ib qho kev tiv thaiv sheath rau cable kab. Cov khoom siv uas tsis tshua muaj siab yog ruaj khov heev. Nws tseem hu ua cov khoom siv ceev ceev. Nws mus rau kev tsim cov kav dej rau cov kav dej siab. Lawv muaj peev xwm tiv taus siab mechanical loads thiab pressures. Qhov kev txwv ntawm txhua hom polyethylene yog fusibility. Ntawm 80 ˚С, cov khoom pib mos, thiab melts twb ntawm 105 ˚С. Cov cuab yeej no txiav txim siab thaum siv cov kav dej zoo li no.

Scope ntawm daim ntawv thov yog txwv rau qhov kub thiab txias. Tab sis cov kav dej tau piav qhia yog siv nyob rau hauv ntau qhov chaw, uas yog:

• thaum npaj cov kav dej;
• thaum khawb qhov dej;
• thaum tso dej txias;
• thaum npaj cov txheej txheem dej;
• thaum tso cov khoom siv roj;
• hauv kev ua haujlwm hluav taws xob.

daim ntawv thov txwv yog dab tsi

Cov khoom siv polyethylene yog deformed thaum raug kub, yog li thaum txhim kho cov cua sov, koj yuav tsum siv ntau hom polymer pipeline - polypropylene reinforced kab. Ib qho kev zam yog lub raj xa dej, thaum lub sij hawm kev teeb tsa ntawm cov khoom siv molecularly cross-linked polyethylene siv. Thaum piv nrog rau qhov zoo tib yam, nws tsis ntshai ntawm qhov kub thiab txias uas ncig sab hauv thiab muaj qhov zoo hauv qab no:

• tsis muaj corrosion;
• nqi me;
• lub neej ua haujlwm ntev;
• lub teeb yuag;
• low roughness factor;
• sib txawv diameters;
• tsis xav tau staining lossis rwb thaiv tsev.

Sab nraud thiab sab hauv kab

Txoj kab uas hla ntawm cov kav dej polyethylene yog ib qho ntawm cov yam ntxwv tseem ceeb uas yuav tsum tau xav txog thaum xaiv cov khoom zoo li no. Tus nqi no tuaj yeem teev tau ntau txoj hauv kev. Nyob ntawm txoj kev ntsuas, txoj kab uas hla yuav yog:

• nomnom;
• xov xwm;
• tseem;
• external;
• outer.

Nominal yog siv ntau tshaj plaws. Nws qhia txog txoj kab uas hla ntawm lub voj voog nyob rau hauv kev sib cuag nrog lub txiv mis haum. Lub nominal txoj kab uas hla tuaj yeem yog sab nraud lossis sab hauv. Txoj kab uas hla ntawm cov kav dej polyethylene tau sau tseg hauv lub xeev tus qauv. Tus nqi no yog tus nqi nominal sib npaug li 0.1 hli.

Lub taub sab nraud lossis sab nraud yog lub voj voog uas tsim los ntawm lub dav hlau ntawm sab nrauv. Txoj kab uas hla ntawm cov kav dej polyethylene yog ntsuas raws qhov ncig ntawm sab hauv.

Ntawm kev muag hnub no koj tuaj yeem pom cov kav dej uas muaj peev xwm tiv taus qhov cua sib txawv thaum lub sijhawm ua haujlwm. Ntawm cov feem ntau yog: SDR 17; SDR 13, 6 thiab SDR 11. Thawj cov yeeb nkab muaj qhov siab ntawm 10, qhov thib ob muaj 12.5, thiab qhov thib peb muaj 16 cua. Cov khoom no muaj qhov sib txawv sab nraud thiab sab hauv, nrog rau cov phab ntsa tuab.

Lub taub sab nraud ntawm cov yeeb nkab nrog lub siab qis nws txawv ntawm 25 txog 630 hli. Sab hauv txoj kab uas hla tuaj yeem sib npaug ntawm qhov txwv ntawm 21.2 txog 547.4 hli. Phab ntsa thickness nyob rau hauv cov ntaub ntawv no yog sib npaug zos rau ib daim duab ntawm 2 mus rau 37.4 hli. Ib tug linear meter ntawm xws li ib tug yeeb nkab hnyav 69.9 kg siab tshaj plaws. Tus nqi qis kawg nkaus yog 0.152kg.

Ntxiv txog txoj kab uas hla

Qhov txoj kab uas hla ntawm cov yeeb nkab polyethylene yuav txawv yog tias koj muaj cov khoom cim SDR 13, 6 nyob rau hauv pem hauv ntej ntawm koj, nyob rau hauv cov ntaub ntawv no, lub sab nraud txoj kab uas hla yuav zoo ib yam, tab sis lub puab txoj kab uas hla yuav txawv ntawm 21.2 mus rau 527.8. mm. Phab ntsa thickness yog 2.1 hli yam tsawg kawg nkaus thiab 46.3 hli siab tshaj plaws. Nyhav ib kab meter ntawm cov yeeb nkab 0.154 - 84.8 kg.

Ua ntej yuav, koj yuav tsum paub txog txoj kab uas hla ntawm SDR 11 polyethylene yeeb nkab, uas tuaj yeem tiv taus 16 cua. Sab nraud txoj kab uas hla tseem zoo ib yam, tab sis sab hauv txoj kab uas hla hloov ntawm 20.4 mus rau 503.8 hli. Phab ntsa tuab yog sib npaug li qhov txwv ntawm 2.3 txog 57.2 hli.

Thaum xaiv cov yeeb nkab, koj yuav tsum tau ceev faj, vim tias cov tuam txhab Lavxias qhia txog sab nraud, thaum cov tuam txhab txawv teb chaws qhia cov khoom sab hauv. Ntau qhov kev thov niaj hnub no yog cov kav dej polyethylene loj. Lawv qhov chaw tseem ceeb ntawm kev siv yog:

• siab pipelines;
• cua daj cua dub kua dej;
• sewers.

Pros ntawm cov kav dej loj

PE kav, uas nws txoj kab nruab nrab yog loj heev, muaj qhov zoo dua, ntawm lawv yuav tsum tau qhia:

• nqi qis;
• ib pawg me;
• ib puag ncig phooj ywg;
• sealing zog;
• cuam tshuam thiab ncab tiv taus.

Yog dheev dej khov hauv cov kav dej no, nws yuav tsis mobkhoom. Qhov ntev kuj nyob ntawm txoj kab uas hla. Piv txwv li, cov khoom loj dua 160 hli inch tuaj yeem yuav ntev li ntawm 3 mus rau 12 m. Yog tias koj xav tau cov khoom siv nrog lub taub me me, lawv tuaj yeem ua tau ntev, muag hauv coils lossis coils.

Pipement rau 110 mm

Cov yeeb nkab polyethylene nrog txoj kab uas hla ntawm 110 hli yog tsim los ntawm cov khoom siv tsis tshua muaj siab los ntawm extrusion. Cov khoom siv tau yooj yim rau nruab thiab tus nqi qis, thiab lawv tuaj yeem siv rau ntau qhov chaw. Qhov chaw tseem ceeb ntawm daim ntawv thov yog kev tiv thaiv qis-voltage thiab lub zog hluav taws xob xaim los ntawm kev puas tsuaj thaum muab zais.

Koj tuaj yeem yuav cov yeeb nkab zoo li no los ntawm kev them 149 rubles. rau 'meter'. Yog tias peb sib piv cov khoom no nrog cov kav dej, thawj qhov yog tsis muaj zog, uas txhais tau hais tias nws tuaj yeem siv rau cov kav dej los yog cov kav dej. Nws yog muag hauv ntu ntawm 12 thiab 13 m. Yog tias xav tau, koj tuaj yeem ua qhov kev txiav txim rau ntu ntawm txhua qhov ntev uas yuav yooj yim rau kev teeb tsa thiab xa khoom.

Yuav ua li cas saib rau

Cov yeeb nkab tsis tuaj yeem tiv taus qhov tawg, yog li nws tsis tuaj yeem tso nrog HDD txoj kev. Cov khoom yog tsim nyob rau hauv ob peb lub versions, txhua qhov sib txawv ntawm phab ntsa thickness. Qhov kev ntsuas no tuaj yeem sib txawv ntawm 4.2 txog 10 hli. Butt welding feem ntau yog siv los txuas cov yeeb nkab ntu. Txawm hais tias tsis pom zoo, lub qhov (socket) txuas yuav raug siv. Compression fittings kuj zoo heev. Koj siv tautshwj xeeb fittings rau cov khoom sib txuas.

vuam nta

Dab tsi txoj kab uas hla polyethylene kav, tam sim no koj paub. Txawm li cas los xij, rau lub installation ntawm cov khoom no, nws yog ib qho tsim nyog yuav tsum paub koj tus kheej nrog cov yam ntxwv ntawm docking. Kev sib txuas yuav los yog tsis tuaj yeem raug tshem tawm. Lub qub muab rau qhov muaj peev xwm ntawm disassemble lub system thaum lub sijhawm ua haujlwm. Txhawm rau tsim kev sib txuas zoo li no, steel flanges yog siv. Thaum lub sijhawm ua haujlwm, disassembly tsis tuaj yeem nqa tawm yog tias kev sib txuas ruaj khov.

Yam kawg tuaj yeem ua tiav hauv ib qho ntawm ob txoj hauv kev. Thawj koom nrog kev siv lub pob tw vuam tshuab, thaum txoj kev thib ob yog vuam cov kav dej nrog cov couplings. Vuam ntawm qhov loj-inch polyethylene kav yog nqa tawm siv cov thermoresistive fittings thiab cov txheej txheem ntawm lub pob tw-welding kav. Kev sib txuas yog monolithic nyob rau hauv ob qho tib si thiab ntseeg tau heev.

Txhim kho pob tw vuam thiab kev teeb tsa

Butt welding yuav tsum siv cov khoom siv vuam. Kev yooj yim ntawm cov txheej txheem kev teeb tsa ua rau qhov tsis muaj qhov xav tau rau qhov chaw ntxiv. Cov thev naus laus zis no tsuas yog cuam tshuam rau cov kav dej HDPE ntawm tib txoj kab uas hla. Butt welding tuaj yeem ua tau zoo tsuas yog tias nws tau ua nrog ib qho seam. Qhov no ua kom muaj zog sib npaug ntawm cov khoom.

Butt mount technology yog qhov ua tau zoo tshaj plaws thiab muaj ntau yam. Thaum siv qhov noCov txheej txheem khaws cia qhov hloov pauv ntawm cov khoom raws qhov ntev ntawm cov kav dej. Cov txheej txheem no tsis yooj yim, tsis hais txog hom kev teeb tsa lub raj xa dej, uas tuaj yeem ua ib txwm muaj, qhib lossis trenchless.

Yog tias koj txiav txim siab rau pob tw, koj yuav tsum siv lub tshuab cua sov. Ua li no, qhov kawg ntawm cov khoom yuav tsum tau welded yog ntsia rau hauv nruab nrab ntawm lub vuam tsev. Tom qab kev sib raug zoo thiab kev ruaj ntseg kho, qhov kawg ntawm cov kav dej yuav tsum tau ntxuav cov av thiab plua plav nrog ib daim ntaub so ntswg. Qhov chaw yuav tsum tau welded yog ua tiav los ntawm ib tug neeg kho tshuab ntsia hlau. Sai li sai tau raws li koj tau txais ib daim nyias nyias, lub thickness ntawm uas tsis ntau tshaj 0.5 hli, koj yuav tsum nres lub manipulation, tshem tawm cov cuab yeej thiab xyuas cov kev sib nrig sib parallelism nrog koj txhais tes. Yog hais tias muaj qhov sib txawv ntawm qhov chaw yuav tsum tau welded, uas yog ntau tshaj li tus nqi tso cai, lub trimming manipulations yuav tsum tau rov ua dua.

Siv lub tshuab cua sov uas tsis yog lo rau cua sov qhov kawg ntawm cov kav dej. Thaum lub fusion mus txog theem siab tshaj plaws, qhov chaw yuav tsum tau muab faib thiab cov cua sov tau tshem tawm ntawm qhov chaw vuam. Tom qab ntawd cov npoo yuav tsum tau welded. Tom qab ntawd, lub clamping siab yuav tsum tau nce tusyees kom txog thaum tus nqi nce mus txog qhov yuav tsum tau muaj. Lub seam yuav tsum tau khaws cia nyob rau hauv ib lub siab ntev.