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H 2S Air Filtration Unit

OUTSIDE 35 C HUMIDITY 90%

22ยบ C

Inside

PROVIDED BY HEINEN & HOPMAN

Heating

Ventilation

Air Conditioning

Refrigeration


INTRODUCTION

H2S-VDBS

During the extraction of oil and gas from the various depths within the Earth’s crust larger or smaller quantities of hydrogen sulphide may also be released. As the result of leaky joints on any of the pipes on a platform, or during cleaning of the oil or gas, this poisonous gas can escape into the surrounding areas and thus becomes a serious threat for the crew. A concentration of 500 ppm (0.05 vol.%) produces unconsciousness with just a few breaths. 1000 ppm (0.1 vol.%) are fatal within a few minutes and a concentration of 5000 ppm (0.5 vol.%) proves fatal within seconds. In order to protect the personnel from this treacherous and deadly peril, the drilling industry searched over a period of time for suitable protection systems. Our H2S air filtration unit is one of them.

APPLICATION Our H2S air filtration system provides clean filtered fresh air, free from H2S contaminates in an overpressure refuge. Three levels of filtration (coalescer, dust, and composite filtration) is applied to incoming air before being supplied to the refuge. The overpressure refuge removes the need for occupants to wear gas masks and protective clothing during H2S release. Two modes of operation allows clean fresh air to be supplied during normal operation, and filtered fresh air during H2S release. The control system constantly compares inside and outside pressures, and should the refuge pressurization fail, provide a visual and/or audible warning. Our H2S air filtration unit is designed for external installation to the refuge with a supply duct to the refuge’s interior. The H2S air filtration control unit is designed to be installed internally within the refuge covering the air duct to diffuse air entering the refuge. When the H2S air filtration unit is operational the unit is designed as a fail-safe system, i.e. should the unit sustain damage or an air seal leak, then clean air will leak out of the unit rather than contaminated air being drawn in.

KEY FEATURES • • • • • • • • • •

Very high removal efficiency Engineered approach to elimination of leaks Media contained in user refillable cells Pre- and after- filtration Wide range of operational temperatures [-32°C to +45°C] Easy service and maintenance access; Compact and lightweight; Completely closed system; Doors equipped with end switches Custom designed capacities

Technical Data H2S-VDBS - 50Hz / 60Hz Ambient H2S concentration

600ppm

Refuge H2S concentration

10ppm (60min)

Air quantity

(custom designed) m3/h

Pst

(custom designed) Pa

Execution

SS316L, ATEX Ex II 2G T4

Primary filter

G4

Secondary filter

F7

Tertiary filter

Activated Carbon + Alumina

Power supply fan

3x380V-50Hz / 3x440V-60HZ

Rated power

(custom designed) kW

VDBS-F-(1/2/3)-1500

457

457

767

1067

1367

550

1200

1320

1980

1220

1830

Power supply heater

3x380V-50Hz / 3x440V-60Hz

VDBS-F-(1/2/3)-2500

457

457

767

1067

1367

550

1200

1980

1980

1830

1830

Capacity

(custom designed) kW

VDBS-F-(1/2/3)-4500

457

457

767

1067

1367

550

1200

2235

2235

2135

2135

Weight (excl. heater)

TBD kg

VDBS-F-(1/2/3)-5500

457

457

767

1067

1367

550

1200

2235

2845

2135

2745

Control panel (separate delivery)

Safe Area

Model VDBS-F-(1/2/3)-1000

A

B

C1

C2

C3

D

E

F

G

H

I

457

457

767

1067

1367

457

1372

1320

1320

1220

1220

VDBS-F-(1/2/3)-7000

457

457

767

1067

1367

550

1200

2845

2845

2745

2745

VDBS-F-(1/2/3)-10000

457

457

767

1067

1367

550

1200

3150

3150

3050

3050

Alternatives available on request. Owing to continuous product development Heinen Hopman reserves the right to introduce alterations without prior notice.


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H2s Air Filtration Unit  

During the extraction of oil and gas from the various depths within the Earth’s crust larger or smaller quantities of hydrogen sulphide may...

H2s Air Filtration Unit  

During the extraction of oil and gas from the various depths within the Earth’s crust larger or smaller quantities of hydrogen sulphide may...