GRP vs Carbon Steel Storage Tanks
Rinoj Rajan, L6σBB,MEngNZ,MIEAust,MIET, MIIRSM, MIMMM, PCQI, PMP?, RMP?
Mechanical Engineer ?? Strategic Quality & Project Leader ?? QHSE ? Inspection ? Expediting ? Project MGMT. ??? CSWIP 3.2 ??? BGAS Grade 2 ??? FROSIO Level III (Coating) ??? Lead Auditor - API & ISO (QMS ? EMS ? OHSMS)
???????????????????????? ??????????????????:
? ?????? (??????????-?????????? ???????????????????? ??????????????) tanks are made of fiberglass reinforcement embedded in a resin matrix.
? Common fibers are E-glass, S-glass or carbon fibers which provide strength.
? Resins are usually polyester, vinyl ester or epoxy.
? Isophthalic and bisphenol-A based resins give corrosion resistance.
? ???????????? ?????????? tanks use metal alloys complying with ASTM A36, A283 or A537 Class 1,2 standards.
? These have less than 0.26% carbon content. The steel provides high tensile strength but is susceptible to corrosion over time.
?????????????????? ?????? ??????????:
? For certification, ?????? tanks must be designed, fabricated and tested as per standards like ASTM D3299, ASME RTP-1 or EN 13121.
? ???????????? ?????????? tanks have to meet ASME Pressure Vessel Code Section VIII Division 1 or API 620/650 standards.
?????????????????????? ????????????????????:
? ?????? tanks are made by filament winding glass fibers impregnated with resin around a mandrel.
? Fibers crisscross at various angles to provide hoop and longitudinal strength.
? Successive layers build up the required thickness.
领英推荐
? Curing under controlled temperature hardens the resin.
? ???????????? ?????????? tanks are fabricated from steel plates that are rolled and cut as per design.
? Plates are welded together using processes like MIG, TIG, submerged arc etc.
?????????????????????? ????????????????????:
? ?????? tanks are corrosion resistant and have 2-3 times longer operational life than steel tanks.
? GRP has better chemical resistance against a wide range of products. ? Permeation is up to 10 times lower than steel.
? ???????????? ?????????? offers greater impact resistance and has higher design flexibility.
? Steel tanks require rigorous maintenance and corrosion prevention systems, but have lower capital costs.
? Repairs are easier compared to GRP.
====================================================================
?? Consider following me at RINOJ RAJAN, B.E.(Mech),LSSBB,CSWIP 3.2, FROSIO (Coating,Insulation),API Lead Auditor,ISO Lead Auditor (QMS,EMS,OHSAS,FSMS); if you like what I discuss and share here, this means a lot to me.
Follow our LinkedIn Page QUALITY MANAGEMENT PROFESSIONALS for Career Development Related Documents / Articles https://www.dhirubhai.net/company/qmsprofessionals
Join our Whatsapp Group for Technical Discussions / Standards / Specifications / Procedures https://chat.whatsapp.com/FrZtq1BMRsn7p6pvwP1KoX
====================================================================