explosion relief panels - rhino doorsrhinodoors.com/.../rhino_doors_4pp_a4_brochure-v4.pdf · •...
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THE STRENGTH TO PROTECT
Explosion Relief Panels
rhinodoors.comHelping to Protect National Assets, Transport Infrastructure and Public Places
WALL EXPLOSION RELIEF PANELS (ERPs) FOR ONSHORE COMPRESSOR STATIONS AND HYDROGEN /LNG POWERED SHIPS
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Vertical panel before explosion
During 0.5 bar explosion
After explosion
• External framing spans up to 6m between building columns without supplementary support
• 1.5m x 1.2 to 1.5mm thick gr 316L stainless steel panels wrap around spine beam so cannot fly off in an explosion
• 100kg/m2 rockwool fire insulation and foil liner gives fire protection and 39dBa sound reduction
• Optional external blast resistance
• Full scale Explosion test reports and certification
• Lab tested release clip design
• Downward pointing outer beam flanges prevent icing of release zones at edges of panels
• Architecturally simple
• Projectiles are just rockwool
• Design to FABIG Technical Note 2 “Explosion mitigation systems” and Norsok C002
• Typical compressor building project sizes from 250 to 12000 m2
• Supplementary downstream panels above water line for ships
Inside
Relieving direction
Outside
1500 or 1600
Panel bulges out in early stages of explosion, then slips out of slot at long edge of panel, bulge distance 50mm at release
Panel open position after explosion
ROOF ERPs AND SUPER FAST OPENING PANELS
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Rhino Proprietary ERPs
• Lightweight durable stainless steel panel & fittings
• Fast opening
• No projectiles
• Corrugated like roof sheeting
• Suitable for walls or roofs
• Double sealing, >=5% roof slope
• Supplied as complete cassettes with integral framing or in kit-form Choice depends upon site man-hour rate for site erection
• Suitable for compressor stations and Hydrogen refuelling stations (12.3m2 for 20ft ISO container)
• 30-40mbar release pressure Pstat – small panel width, gives high venting efficiency to EN14797
• More vent area per roof than conventional ERPs• Tolerance for fast rate of pressure rise• Supplied as complete roof units with framing
designed to support top of ISO container wall
• Optional integral louvre outlets for ventilation and warm air heating during snowfall
• Suitable for other forms of Hydrogen refuelling station
• Please note Rhino also supplies Blast doors, blast strengthening kits and foundation attachments for ISO Hydrogen refuelling modules
Conclusions from the comparison:• Conventional ERP fully open after pressure peaks
in the ISO container
• Rhino fast ERP fully open before pressure peaks in the ISO container
• Rhino panel would have produced lower peak pressures than the 0.35 bar
• Further work by Rhino planned to demonstrated degree of reduction in peak pressure
• GexCon Conclusion from HySEA tests: “Venting devices can prevent rupture and fragmentation of containers, even for strong hydrogen deflagrations”
-50
0
50
100
150
200
250
300
350
400
Pres
sure
mba
r or p
erce
nt
Time msec
Fig 2 Pressure time history from HySEA experiment and panel opening time for Rhino fast ERP (by simulation to
FABIG TN2)(time scale starts 58ms after ignition in HySEA test)
Field Pressure
Drag pressure
Percent final open area
Panel fully e t ms(96ms after ignition)
45 eg en at 33 ms(91ms after ignition)
Pm t ms (105msafter ignition in test)
0 20 40 60 80 100 120
Fig 1 HySEA full scale test result 2018 with conventional roof ERPs
Ove
rpre
ssur
e (b
ar)
-0.2
0.0
0.2
0.4
0.6
0.8
Pressure peaks at 105ms after ignition
45 deg open 108ms after ignition)
ERP fully open after 120ms after ignition
Notes:• Drag pressure estimated, not measured in test.• FABIG TN2 simulation also replicates HySEA test ERP response within 3ms.
0.0 0.1 0.2
HYDROGEN REFUELLING ISO CONTAINERS: RHINO ERPs LEAD TO LOWER PEAK EXPLOSION PRESSURES THAN CONVENTIONAL ROOF ERPs
Cross section through 1.1m wide cassette
Stainless steel relief plate profiled for roof function
Panel securely screwed to Spine beam
slotted joint overlaps long edges of relief plate, double block and bleed seal
Panel open position after explosion
Panel bulges out in early stages of explosion, then slips out of slot at long edges of panel
slotted joint overlaps support profile
Duplex SS Release clip
roof level of container
525 to next spine beam
525 525
optional burglar bars
Blast relief
bending lines
50
Fast ERP roof for Hydrogen refuelling ISO containers.
We provide free advice, site surveys and a comprehensive after-sales service, with 24-hour emergency call-out and planned maintenance contracts, backed by extended warranties.
Our doors are installed and maintained by Health & Safety trained and security cleared staff
operating from fully equipped vans.
We are experts in the design and manufacture of door control systems.
We are a NIC EIC Approved contractor.
National Inspection Council forElectrical Installation Contracting
APPROVED CONTRACTOR
Rhino Doors (North)
Office 7, First FloorMartland Mill
Mart LaneBurscoughLancashireL40 0SD
T: +44 (0)1704 898584
Rhino Doors
Rhino DoorsMaritime Road,
Llewellyns Quay,Port Talbot,SA13 1RF
Tel: +44 1639 888119
THE STRENGTH TO PROTECT