GRP cov kav dej yog qhov zoo tshaj plaws rau lwm cov khoom siv xws li hlau, hlau hlau thiab pob zeb. Lawv muaj lub zog zoo heev, corrosion kuj, lub teeb yuag, yooj yim rau kev khiav lag luam thiab nruab. Lawv muaj lub ntsej muag du uas muab cov nqi ntws ntau dua, uas txo qis kev siv zog.
Fiberglass yog hom fiber ntau ntxiv rau fiberglass. Cov fibers yuav random muab tso, compressed rau hauv ib daim ntawv, los yog woven rau hauv ntaub. Cov yas matrix tej zaum yuav yog thermoset polymer matrix, feem ntau raws li cov thermoset polymers xws li epoxy, polyester, los yog yas ester.
History
Los ntawm nruab nrab mus rau lig xyoo 1980s ntawm lub xyoo pua 20th, kev tsim thiab siv cov kav dej loj hauv av tau pib loj hlob. Kev siv thev naus laus zis hauv cov txheej txheem filament winding, corrosion kuj thiab muaj zog ua lag luam yam tseem ceebpab txhawb rau qhov nrov ntawm fiberglass yeeb nkab. Cov lus txhais ntawm dab tsi yog ib txoj kab uas loj loj yuav txawv, tab sis feem ntau qhov ntau thiab tsawg ntawm 12 "mus rau 14".
Cov yeeb nkab sib txuas lossis fiberglass yog siv rau hauv ntau qhov kev lag luam xws li kev tsim hluav taws xob, petrochemicals thiab dej hiav txwv desalination. Fiberglass yeeb nkab yog corrosion resistant, muaj ib tug ntev lub neej voj voog uas feem ntau tshaj 30 xyoo, thiab yog qhov zoo tshaj plaws lwm txoj rau hlau thiab lwm yam hlau alloys, ductile hlau thiab pob zeb. Raws li kev txheeb cais, ntau tshaj 60,000 km ntawm txoj kab uas hla loj yog ua haujlwm thoob ntiaj teb.
Scope of application
siv tseem ceeb:
- Chav thiab condensate rov kab.
- dej kub thiab dej txias.
- Condenser thiab txias ntauwd.
- hluav taws kub hauv av.
- pipelines.
Thermal expansion thiab contraction
GRP yeeb nkab muaj qhov sib txawv thermal expansion nyob rau hauv kab pheeb ces kaum thiab axial kev taw qhia. Nyob rau hauv lub circumferential kev taw qhia, lub thermal expansion yog hais txog tib yam li cov hlau. Txawm li cas los xij, nyob rau hauv cov kev taw qhia axial, thermal expansion yog li ntawm ob zaug ntawm steel.
Qhov qis qis ntawm elasticity ntawm fiberglass yeeb nkab yog qhov zoo dua los xav txog thaum tsim cov kav dej. Raws li cov thermal zogtsawg dua, cov cuab yeej txwv tsis pub (cov lus qhia, cov thauj tog rau nkoj) yuav tsum tsis txhob muaj zog thiab hnyav li rau cov kav dej steel. Muaj qee qhov nce ntxiv vim qhov kawg siab thauj khoom hauv cov kav dej, tab sis kev paub tau pom tias qhov kev hloov pauv ntawm qhov ntev tsis tas yuav tsum tau coj mus rau hauv tus account thaum tsim cov kav dej fiberglass. Composite piping systems tuaj yeem tswj cov thermal shocks ntawm qhov siab tshaj plaws ua haujlwm kub yog tias cov yeeb nkab txuas tsis yog tshuab.
Ntse
Fiberglass kav muaj qhov zoo hauv qab no:
- ntev kev pab cuam lub neej vim zoo heev corrosion thiab tshuaj tiv thaiv (ntsev dej, CO 2, H2S, cov kuab tshuaj, thermal thiab dej oily);
- yooj yim tuav thiab lub teeb yuag (kwv yees li ¼ ntawm qhov hnyav ntawm cov hlau);
- xav tau cov neeg ua haujlwm tsawg thiab cov khoom siv los nruab;
- nrawm nrawm nrog fittings thiab txo nqi installation;
- txhim kho cov yam ntxwv zoo vim yog cov txheej txheem du thiab txo cov khoom tsis kam.
GRP kav: specifications
Qhov laj thawj tseem ceeb rau kev nce hauv kev siv thiab kev nyiam ntawm fiberglass yog qhov tseem ceeb xws li lub zog siab-rau-hnyav piv, qhov ruaj khov, qhov zoo ntawm cov khoom siv, kev yooj yim ntawm kev teeb tsa, txo kev teeb tsa thiab kev saib xyuas, thiab tag nrho.durability nyob rau hauv huab mob. Lwm qhov zoo dua ntawm cov yeeb nkab fiberglass yog tias nws muaj qhov zoo nkauj sab hauv piv rau cov khoom siv hauv tsev. Lub bore du resists loj scale deposits thiab muaj peev xwm ua kom muaj kev pab cuam siab kua ntws thoob plaws hauv lub neej ntawm qhov project.
Thaum tsim cov kab loj hauv av, ntau qhov kev txiav txim siab yuav tsum tau coj mus rau hauv tus account: cov av hauv cheeb tsam, qhov tob hauv av, faus thiab cov khoom nyob, sib txawv vim qhov ua yuam kev thiab kev khiav hauj lwm kub, dej tshaj tawm thiab siab, lub taub hau poob vim yog turbulent flow, hydraulic rauj, dabtsi yog khoov siab thiab pulsation siab. Kev tsim cov kav dej hauv av kom zoo yog cov txheej txheem nyuaj uas suav nrog kev suav ntau - cov khoom tsim tsim yuav tsum ua tiav los ntawm cov kws tsim qauv tsim nyog.
Composite fiberglass yeeb nkab
GRP cov kav dej yog tsim los siv ntau yam epoxy thiab yas ester resins thiab, qhov tsim nyog, kev tiv thaiv corrosion kom ua tau zoo rau txhua daim ntawv thov. Qhov kub thiab txias ntau yam tso cai rau koj ua kom zoo tshaj plaws ntawm cov yeeb nkab fiberglass rau cov kev xav tau ntawm ib daim ntawv thov tshwj xeeb.
Cov kav dej fiberglass siab tau sawv qhov kev sim ntawm lub sijhawm raws li lawv tau nyob hauv ib puag ncig hnyav rau ntau xyoo thiab tau ua pov thawj tias lawv tsim nyog.durability thiab nqi. Thawj cov qauv tshwm sim ntau dua 40 xyoo dhau los.
Qhov zoo ntawm kev sib xyaw fiberglass piping systems:
- nce kev tiv thaiv corrosion / abrasion thaum raug rau cov kua qaub muaj zog;
- siab zog;
- yeeb nkab spans zoo ib yam li steel counterparts;
- zoo PVC rau qhov kub thiab txias ntev;
- zoo tshaj hloov rau cov yeeb nkab steel nrog txheej txheej lossis corrosive puab txheej.
GRP yeeb nkab diameters li ntawm 1 txog 72 ntiv tes.
YMicrobiologically induced corrosion
Qhov kev pheej hmoo no yog qhov teeb meem tshwm sim hauv cov txheej txheem kev lag luam vim muaj cov kab mob microbes. Qhov no nws thiaj li ua rau muaj qhov khoob, nrog cov pa oxygen thiab ion concentration hlwb, tso cai rau kev txhim kho corrosion.
Yog tias lawv tsis kho nrog cov khoom siv fiberglass kho, cov kav dej yuav ua rau tsis muaj zog, feem ntau tsim qhov hauv cov yeeb nkab phab ntsa, ua rau. kom xau thiab poob dej.
Kev kho mob tuaj yeem ua tiav los ntawm kev tiv thaiv cathodic ntawm cov kav dej lossis tshuaj kho cov kua dej, uas nws tus kheej tuaj yeem sib txuas corrosion. Ob txoj kev no yuav tsum tau them nqi ntxiv uas tuaj yeem ncua sijhawm. ua tsis tiav.
Fiberglass yeeb nkab accessories yog tsim los ntawm epoxy thiab yas ester resins. Cov nplaum nomuab qhov zoo tshaj plaws corrosion kuj thiab kub ua haujlwm.
Fittings suav nrog flanges, couplings, tees, reducers, cov kav dej, kho cov khoom siv, kho cov khoom siv fiberglass thiab lwm yam. Cov kav dej fiberglass yog tsim los rau kev siv lub luag haujlwm hnyav thiab tsim nyog rau ntau yam tshuaj uas tau teev tseg hauv phau ntawv fiberglass chemical resistance.
Txhua qhov fittings yog muab nrog spigot los yog flange kev twb kev txuas rau kev yooj yim installation nyob rau hauv daim teb. Tus nqi ntawm cov kav dej fiberglass suav nrog txhua yam khoom siv tsim nyog rau kev teeb tsa thiab thaj tsam ntawm 4,350 txog 47,900 rubles ib kab 'meter', nyob ntawm txoj kab uas hla.
