WELCOME Safety Symposium & Exposition 2018, Kolkata SAFETY IN - PowerPoint PPT Presentation

WELCOME Safety Symposium & Exposition 2018, Kolkata SAFETY IN OXYFUEL PROCESS SOUMEN DEB 9 TH AUGUST 2018

SAFETY & SECURITY

Safety In Oxyfuel process like Gas welding cutting Brazing Heating

Oxyfuel Heating process

LPG & O2 CYLINDER BLAST HIMANSHU ENGINEERING WORKS YAMUNA NAGAR August 7, 2006

Gases In Use..  Oxygen  Acetylene  LPG/Propane Flame Temperatures 2800 to 3100

Gas Density “Heavy” gases flow like liquids

Explosion Limits Explosion Limits Gas LEL (vol %) UEL (vol %) Acetylene C 2 H 2 2,8 93 Ammonia NH 3 15 28 Arsine AsH 3 4 10 Butane C 4 H 10 1,8 8,5 Natural Gas (Methan) CH 4 5 15 Ethylene Oxyde C 2 H 4 O 3 100 Hydrogen H 2 4 75,6

 Case Study - Cochin Ship yard

COCHIN SHIPYARD FEB 2018

OXYFUEL GAS FLASHBACK ARRESTORS

Backfir Bac kfire Flashbac lashback  Burning back of flame into  Loud noise caused by torch tip or gas hose momentary stoppage of  Causes : gas flow  Improper gas press. settings => Resulting in momentary extinguishment and  Distorted or loose tips reignition of the flame  Damaged seats  Kinked hoses  Cause : due to  Incorrect Nozzle Selection obstruction by an  Clogged or damaged tips overheated or  Improper gas supply damaged tip  Gas Mixing ratio

OXY-FUEL EQUIPMENT – THE TECHNOLOGY IN FLASHBACK ARRESTORS FLASHBACK ARRESTOR MODEL “DGN” Inlet Gas non- Flame arrestor Temperature- filter return valve sensitive cut-off valve

FBA – DGN , ACTUAL CUT VIEW

TYPES OF FLASHBACK ARRESTORS

USES OF 2 PIPE CUTTING TORCHES

UNSAFE PRACTICE IN OXYFUEL CUTTING : USES OF 2 PIPE CUTTING TORCH FLASHBACK BLAST AT TORCH HANDLE- 2 PIPE TORCH

UNSAFE 2 PIPE TORCH AND VIEW OF FLASHBACK BURST 3 PIPE CUTTING TORCH – THE SAFE ONE

CYLINDERS OUTSIDE THE PLANTS

THE TECHNOLOGY : ACETYLENE GAS BANK WITH ÄSG” SAFETY DEVICE FITTED AT JSPL - RAIPUR

BU13 – 2X10 OXYGEN GAS BANK @ JSPL RAIPUR WITH SAFETY INSTRUCTION BOARDS

HOWDEN SOLYVENT NITROGEN MANIFOLD HEADER TAPPING POINT REGULATORS – ET65 WITH ECONOMICAL WITH TORNADO BALL VALVE & SS BACK UP PLATE 300 & F11 FILTER

THE GREY-MATTER TECHNOLOGY Application Usage  Training  Ownership  Monitoring  Awareness & Assessment

Thank you