HDPE yeeb nkab: ua-nws-koj tus kheej installation, installation nta thiab cov lus qhia

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

PE kav dej muaj ntau yam vim yog cov yam ntxwv zoo ntawm cov khoom. Ntau ntxiv, cov kav dej HDPE tau siv hauv lub neej txhua hnub. Kev teeb tsa tuaj yeem ua tiav ntawm tes, yog tias txhua yam ua tiav raws li cov cai. Qhov no tsis xav tau kev tsim nyog tshwj xeeb.

Khoom specifications

Kev thov siab rau cov kav dej HDPE yog tshwm sim los ntawm cov khoom zoo:

• kub ntau - los ntawm -50 ⁰ С txog +600 ^С;
• resistance rau acidic thiab alkaline ib puag ncig;
• siab elasticity thiab lub zog;
• qis thermal conductivity;
• polyethylene tsis yog tus neeg xyuas hluav taws xob.

siv cov kav dej

Hauv tsev lossis hauv tebchaws, cov kav dej HDPE tau tsim:

• s dej thiab dej;
• plua plav;
• gas mov rau tsev;
• cable channel rau kev xaim hluav taws xob.

pib xaiv

Rau cov kav dej haus, cov kav dej uas muaj txoj kab uas hla tsis tshaj 60 hli nrog phab ntsa tuab ntawm 4 hli yog yuav. Lawv yuav tsum tau tsim los rau kev ua haujlwm siab ntawm cov kua hauv lub cev tsis qis dua 1 MPa. Qhov zoo dua yog qhov tsis muaj corrosion thiabsaj ntawm hlau nyob rau hauv dej. Yog tias koj xav muab cov dej kub, koj yuav tsum paub tias ntawm qhov kub ntawm 80 ⁰ C, polyethylene softens, thiab nrog kev nce ntxiv nws pib yaj. Hauv qhov no, koj yuav tsum xaiv lub hom tsis qis dua PE80. Rau cov kav dej kub kuj tuaj yeem raug cim PE-RT lossis PN20, lawv tuaj yeem tiv taus qhov kub txog li 110 ^{0 C. Rau cov xwm txheej hauv tsev, qhov no txaus txaus.}

Nws yog ib qho tsim nyog yuav tsum paub qhov txawv ntawm cov kav dej rau cov dej thiab tsis muaj qhov siab. Rau kev ua haujlwm zoo ntawm cov dej, cov bays yog 25 m ntev nrog phab ntsa tuab ntawm yam tsawg 2 hli. Yog tias cov kab tseem ceeb ua haujlwm nyob rau hauv lub siab zoo thiab muaj lub cheeb ntawm ntau tshaj 25 mm, ces ib tug ntiv tes yeeb nkab yog coj los ua ib ceg. Txawm li cas los xij, lub qhov hluav taws xob yuav tsum me dua qhov dej dav dav.

Txoj kev txuas HDPE kav

Ua ntej kev teeb tsa, koj yuav tsum xaiv txoj kev sib txuas, uas tuaj yeem ua raws li hauv qab no:

1. Ib-thooj - electrofusion lossis pob tw vuam. Kev sib txuas yog tib lub zog raws li cov yeeb nkab nws tus kheej.
2. detachable txoj kev - lub qhov (socket), compression thiab flange kev twb kev txuas. Cov kav dej zoo li no tau yooj yim sib dhos thiab rhuav tshem, nws tuaj yeem kho lossis nruab rau hauv qhov chaw nyuaj. Kev sib txuas yog tsim nrog fittings.

Txoj kev sib txuas raug xaiv nyob ntawm cov hauv qab no:

• pipe diameters;
• hom kev ua haujlwm: tsis-siab, siab, cabling;
• siv cov cuab yeej los ntawm cov khoom sib txawv thiab nrog cov kab sib txawv;
• site nkag tau;
• muaj cov vuamkhoom siv.

Welded thiab flanged kev sib txuas yog qhov ruaj khov tshaj plaws. Threaded coupling nrog foob yog tsis ruaj khov rau loads. Kev teeb tsa ntawm HDPE yeeb nkab rau cov dej xa nrog compression fittings feem ntau yog ua nyob rau hauv lub vaj tsev rau cov nroj tsuag watering systems.

Qhov kev sib txuas tsis muaj zog tshaj plaws yog flared. Lawv tsuas yog siv rau hauv cov kav dej tsis muaj zog, tshwj tsis yog thaum qhov kev sib txuas tau ua welded.

Compression fittings rau HDPE kav: installation

Rau cov kav dej HDPE, cov yas fittings feem ntau yog siv, tab sis kuj muaj ntau cov kev xaiv ruaj khov ua los ntawm cov hlau, cam khwb cia hlau, tooj liab thiab tooj dag. Lawv txawv ntawm kev tsim thiab tuaj yeem welded, threaded, nrog kev sib txuas xovxwm. Rau cov kav dej yas, compression fittings feem ntau yog siv, qhov twg fixation yog tsim los ntawm ib tug clamping split nplhaib ua los ntawm cov yas tawv nrog notches, thiab sealing yog los ntawm nruj lub sealing rings.

Zoo li lwm yam khoom siv sib txuas, muaj ntau hom compression fittings:

• coupling - rau kev sib txuas cov kav dej ntawm qhov sib npaug thiab kev taw qhia;
• kev hloov pauv - txhawm rau txhawm rau txuas qhov kawg ntawm cov kav dej, txoj kab uas hla ntawm qhov sib txawv (kev hloov pauv "hlau-polyethylene" yog ua tau);
• retraction, angle - tig tus qauv los ntawm 45-1200;
• tee, hla - los tsim ceg;
• fitting - ib lub cuab yeej rau txuas cov yeeb nkab nrog lub hose;
• cap - rau sealing yeeb nkab kawg.

Ua ntej tso cov yeeb nkab dej, ua ntej ntawm tag nrho cov, koj yuav tsum kos ib daim duab ntawm nws nrog tag nrho cov fittings thiab li qub. Cov yeeb nkab nthuav dav zoo li twist, yog li nws tau nrawm nrog clamps lossis nias rau hauv lub xeev ncaj nraim rau 2 hnub.

Yog tias cov yeeb nkab HDPE raug xaiv rau kev teeb tsa, kev teeb tsa feem ntau ua nrog compression fittings.

1. Cov yeeb nkab raug txiav kom loj nrog lub cuab yeej tshwj xeeb. Koj tuaj yeem siv lub hacksaw tsis tu ncua rau hlau, tab sis qhov kawg yog tsim txawm thiab deburred.
2. Lub qhov yog ua raws li lub calibrator, vim nws cov duab oval tsis tso cai. Lub chamfer sab nraud yog ua thaum kawg.
3. Lub cev haum yog ua tib zoo txuas nrog cov yeeb nkab kom tsis txhob ua kom cov roj hmab ntsaws ruaj ruaj. Kev tsaws yuav yooj yim dua yog tias qhov sib koom ua ke moistened nrog dej.
4. Lub koom haum txiv ntoo raug kaw los ntawm tes. Ib tug ciaj ntswj tuaj yeem siv los muab qhov xav tau kev sib txuas ceev.
5. Cov txheej txheem rov ua dua rau lub kav thib ob.

Compression fittings yooj yim siv thaum txhim kho HDPE kav hauv lub tebchaws. Lub kaw lus yooj yim los sib sau ua ke ntawm qhov chaw nyob rau lub caij nplooj ntoo hlav thiab rhuav tshem lub caij nplooj zeeg.

Cov kev sib txuas uas tshem tau hauv qhov chaw nyuaj mus cuag tsis tau ua. Nws yog qhov yooj yim siv hluav taws xob couplings nrog lub tshuab ua kom sov. 2 cov kav dej txuas nrog los ntawm kev sib txuas, tom qab ntawd nws cov cua sov tau qhib thiab vuam siv qhov chaw los ua ib qho kev sib dhos. Tus nqi ntawm cov cuab yeej yog siab, tab sis txoj kev siv tau zoo thiab feem ntau siv.

Txawm tias muaj peev xwm ua kom tawg, compression fittings yuav tsum tau hloovroj hmab seals thaum reinstalling. Qhov no yuav ua kom muaj kev ntseeg siab ntawm tus tsim.

Flange kev sib txuas

Thaum HDPE yeeb nkab raug teeb tsa, kev teeb tsa rau txoj kab uas hla tshaj 40mm yog qhov zoo dua ua nrog cov hlau flanges. Txhawm rau ua qhov no, cov npoo ntawm cov kav dej yog txiav nrog cov yeeb nkab cutter ntawm lub kaum sab xis raws li cov cim tiav. Tom qab ntawd polyethylene bushings nrog ob sab yog welded rau lawv, thiab hlau flanges yog ntsia rau lawv. Lwm txoj hauv kev yog mount lub compression flange ntawm cov yeeb nkab los txhim kho qhov sib koom ua ke ntawm cov polymer. Tom qab ntawd ib lub flange tsis tu ncua yog ntsia, uas yog fastened nrog studs thiab bolts nrog ib tug zoo xws li ib feem ntsia rau qhov kawg ntawm cov yeeb nkab steel.

Flange kev sib txuas tso cai rau koj txuas li qub, tswj hwm, li qub thiab cov kav dej rau ib leeg.

Welded pob qij txha

Ib yam li cov khoom siv hlau, HDPE yeeb nkab tuaj yeem welded. Ua-nws-koj tus kheej installation yog nqa tawm siv cov cuab yeej tshwj xeeb nrog hluav taws xob cua sov ntawm cov pob qij txha.

1. Cov pob qij txha tau raug ntxuav thiab cov khoom siv vuam tau npaj.
2. Tshuaj welding parameters.
3. Cov kav dej yog tsau rau hauv cov clamps ntawm lub tshuab vuam thiab nruab nrab. Qhov kawg yog machined.
4. Cov cua sov tau nruab nruab nrab ntawm cov kav dej, nrog kev pab los ntawm cov npoo yog yaj.
5. Qhov kawg raug coj los ua ke nyob rau hauv siab, tuav kom txog thaum txias.
6. Cov kav dej raug tshem tawm ntawm cov clamps.

Tus nqi ntawm kev txhim kho HDPE kav los ntawm vuam yog nyob ntawm txoj kab uas hla, tab sis mus txog tus nqi ntawm 63 hli tus nqiFeem ntau tib yam thiab yog hais txog 200 rubles. rau qhov sib koom.

Thaum siv hluav taws xob clutch, tus nqi teeb tsa yog tib yam rau lub taub qab vuam, tab sis nws muaj tus nqi siab dua. Vim li ntawd, tus nqi siab dua.

Hydraulic test

Kev ua haujlwm ntawm cov kav dej sib sau ua ke tau kuaj xyuas los ntawm kev ntim dej rau 2 teev. Tom qab ntawd lub kaw lus yog pressurized thiab khaws cia rau 30 feeb. Lub raj xa dej raug tshuaj xyuas rau cov dej xau.

Lub sijhawm ua haujlwm, lub xeev ntawm lub kaw lus tau saib xyuas tas li. Thaum sib dhos kom raug, nws yuav ua haujlwm ntev.

yuam kev thaum txhim kho HDPE kav

1. Nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account qhov kev nthuav dav ntawm cov kav dej vim qhov kub thiab txias. Yog tias koj tsis nco qab txog nws, qhov hluav taws xob hauv cov kav dej tau dhau qhov kev cai, uas txo lawv txoj sia.
2. Kev sib nrug ntau dhau ntawm cov khoom siv ua rau sagging hauv cov kav dej, ua rau ua tsis tiav ntxov.
3. Cov kav dej tsuas yog cemented nrog rwb thaiv tsev.
4. Yog li ntawd cov condensation tsis tsim rau saum npoo, cov kav dej rau muab dej sov lossis dej txias yog insulated.
5. Thaum lub sijhawm teeb tsa, qhov haum yog disassembled kom cov kav dej nkag mus rau hauv kom deb li deb tau. Yog hais tias koj tsis unscrew lub txiv ntseej kiag li, thiab ces forcefully thawb cov yeeb nkab rau hauv lub connector, nws yuav tsis mus tob txaus. Thaum ua-nws-koj tus kheej installation ntawm HDPE kav yog ua nyob rau hauv lub teb chaws rau lub irrigation system, leaks tsis yog li ntawd txaus ntshai, tab sis qhov no yog tsis tsim nyog rau cov kav dej hauv tsev. Txawm hais tias qhov tshwm sim ntawm ob qhov xwm txheej, nws yog qhov tsim nyog los tsimkev sib txuas nruj.
6. Kev ua kom nruj cov adapters yuav ua rau lawv tawg lossis cov gaskets plam tawm ntawm lawv qhov chaw mounting.

Zoo kawg

Thaum HDPE yeeb nkab raug teeb tsa, kev teeb tsa yog ua tiav los ntawm vuam lossis compression fittings. Yog tias tsim nyog, kev sib txuas yuav nruj thiab muaj zog tau ntau xyoo.