Temporary refuge shelter (TR), Safe haven cabin, toxic gas refuge shelter (TGR), H2S temporary refuge shelter, emergency refuge chamber, disaster refuge,
Why is the temporary refuge (TR) shelter (toxic gas refuge, safe haven cabin, H2S temporary refuge) needed?
The Temporary Refuge (T.R.) shelter is a safe and sealed area for the people protection during environmental contamination from poisonous gases which can be present in operating areas where oil and/or gas research, extraction and pre- production are performed. The TR shelter or safe haven cabin should be provided on all offshore installations. The TR is required to have a defined performance standard related to its survivability when exposed to a major accident that includes, but is not limited to, ingress of smoke, flammable and toxic gas. HVAC forms an essential part of this. As the TR is the last space for the crew before abandoning the vessel, rig or platform, the HVAC system should create and maintain a comfortable and safe indoor condition free of any explosive and/or toxic gas-air mixtures. The air quality and pressure inside the TR-zone is than of top priority. This can be created by the special TR pressurisation shelter or called as safe haven cabin.
Within the petrochemical industry, the common practice of modifying existing site buildings to function as shelter-in-place safe havens can often prove a timely and costly exercise, resulting in non-flexible solution as site requirements shift over time. Building modification can also prove ineffective, with numerous air entry and exit points to consider, not to mention costly blast proofing if required. In response, TLS offshore containers international has developed a fully sealed, transportable and cost-effective alternative to site building modification. TLS temporary refuge shelter (toxic gas refuge shelter, safe haven) offers a safe secure “go-to” area for ranging from multiple to hundreds of personnel in the event of toxic chemical release, fire, explosion or other hazardous emergency response scenario.
How does TR (or TGR) work?
When escaping from hazardous area, the temporary refuge shelter is activated via alarm schedule during an emergency, will serve as a rest and care station for 1-4 hours or more hours. HVAC and positive pressure system protect person and equipment from critical outdoor conditions like extreme weather, dust, sand, storm, H2S, CH4 or other toxic gasses contamination, explosion etc. Creating a breathable atmosphere within a sealed room to protect your employees.
Temporary Refuge (TR) shelter, safe haven cabin, toxic gas refuge (TGR), H2S temporary refuge shelter
The buildings meet all the requirements of a Temporary Refuge (TR) including but not limited to HVAC shutdown in case of potential toxic gas intrusion, fire damper closure activated by Gas Detectors in case of fire, air locks on doors, and minimum breathable air concentration by air cylinders enough for two hours, and meet requirements of BP GP 44-30, Design and Location of Occupied Buildings in Onshore Facilities. The Temporary Refuges is located to ensure the safety of personnel during the period of time that covers the call to muster until an incident has been investigated and controlled, or successful evacuation of the installation has been completed. The TR shelter have adequate medical and welfare facilities, as well as emergency communications.
The TR shelter is designed for external installation to TR areas with a supply duct to the TR area interior. The TR shelter control panel is designed to be installed internally within the TR area. When the TR shelter is operational the shelter is designed as a fail-safe system, i.e. should the shelter sustain damage or an air seal leaks, then clean air will leak out of the shelter rather than contaminated air being drawn in. TR has the double function as dayroom during normal operation and as Temporary Refuge in case of emergency. During normal operation, the TR shelter is ‘dead’ and closed by gas-tight dampers. It comes operational for emergency situations in emergency.
Operation sequence of TR, TGR during emergency situation
Main features of Temporary Refuge (TR) shelter, safe haven cabin, toxic gas refuge (TGR), H2S temporary refuge shelter
The Temporary Refuge (T.R.) shelter is a safe and sealed area for the people protection during environmental contamination from poisonous gases which can be present in operating areas where oil and/or gas research, extraction and pre- production are performed. The TR shelter or safe haven cabin should be provided on all offshore installations. The TR is required to have a defined performance standard related to its survivability when exposed to a major accident that includes, but is not limited to, ingress of smoke, flammable and toxic gas. HVAC forms an essential part of this. As the TR is the last space for the crew before abandoning the vessel, rig or platform, the HVAC system should create and maintain a comfortable and safe indoor condition free of any explosive and/or toxic gas-air mixtures. The air quality and pressure inside the TR-zone is than of top priority. This can be created by the special TR pressurisation shelter or called as safe haven cabin.
Within the petrochemical industry, the common practice of modifying existing site buildings to function as shelter-in-place safe havens can often prove a timely and costly exercise, resulting in non-flexible solution as site requirements shift over time. Building modification can also prove ineffective, with numerous air entry and exit points to consider, not to mention costly blast proofing if required. In response, TLS offshore containers international has developed a fully sealed, transportable and cost-effective alternative to site building modification. TLS temporary refuge shelter (toxic gas refuge shelter, safe haven) offers a safe secure “go-to” area for ranging from multiple to hundreds of personnel in the event of toxic chemical release, fire, explosion or other hazardous emergency response scenario.
How does TR (or TGR) work?
When escaping from hazardous area, the temporary refuge shelter is activated via alarm schedule during an emergency, will serve as a rest and care station for 1-4 hours or more hours. HVAC and positive pressure system protect person and equipment from critical outdoor conditions like extreme weather, dust, sand, storm, H2S, CH4 or other toxic gasses contamination, explosion etc. Creating a breathable atmosphere within a sealed room to protect your employees.
Temporary Refuge (TR) shelter, safe haven cabin, toxic gas refuge (TGR), H2S temporary refuge shelter
The buildings meet all the requirements of a Temporary Refuge (TR) including but not limited to HVAC shutdown in case of potential toxic gas intrusion, fire damper closure activated by Gas Detectors in case of fire, air locks on doors, and minimum breathable air concentration by air cylinders enough for two hours, and meet requirements of BP GP 44-30, Design and Location of Occupied Buildings in Onshore Facilities. The Temporary Refuges is located to ensure the safety of personnel during the period of time that covers the call to muster until an incident has been investigated and controlled, or successful evacuation of the installation has been completed. The TR shelter have adequate medical and welfare facilities, as well as emergency communications.
The TR shelter is designed for external installation to TR areas with a supply duct to the TR area interior. The TR shelter control panel is designed to be installed internally within the TR area. When the TR shelter is operational the shelter is designed as a fail-safe system, i.e. should the shelter sustain damage or an air seal leaks, then clean air will leak out of the shelter rather than contaminated air being drawn in. TR has the double function as dayroom during normal operation and as Temporary Refuge in case of emergency. During normal operation, the TR shelter is ‘dead’ and closed by gas-tight dampers. It comes operational for emergency situations in emergency.
Operation sequence of TR, TGR during emergency situation
- Fire and gas detection system send an alarm
- All the personnel run near the TR
- The TR F&G system run the emergency sequence operation, close the F&G dampers and lock the external doors
- TR electric power is switched from external power supply to UPS
- The HVAC system is switched from “fresh air” mode to “full recirculation” mode.
- Is activated the compressed air pressurisation system and the BA system.
- The air lock BA washing system is ready to start
- The air lock doors are unlocked for the first mustering sequence
- A predetermined number of personnel go inside the air lock (the TR doors are still closed)
- Start the BA washing sequence inside the air lock (the air lock doors are now closed)
- A toxic gas analyser verify the absence of gas (if the gas is revealed, start an additional washing sequence)
- The TR rooms doors can be opened.
- Start another mustering sequence (during the mustering, people outside the TR complex waiting for their turn are connected with the outdoor BA Cascade system)
- People inside the TR rooms take their sit or their numbered position, waiting for the rescue vehicle or for the end of the alarm.
- In case of TR evacuation (at the end of the 2 or 3 hours of emergency capacity of the TR), will start the disembarking sequence (through the air lock with only 1 washing sequence).
Main features of Temporary Refuge (TR) shelter, safe haven cabin, toxic gas refuge (TGR), H2S temporary refuge shelter
- Designed for an atmosphere during environmental contamination from poisonous gases
- To provide protection against fire and contaminated environment
- Resist to external Heat Stress due to fire caused by inflammable gas
- To provide recovery to people on board (POB) in case of detection of gas mix including at least: Hydrogen Sulphide, Sulphur Dioxide, inflammable gas such as Methane, Butane, Propane, non-flammable gases as Nitrogen, Carbon Dioxide, Oxygen Deficiency, hazardous exhaust and Temporary smoke with particles suspension
- To provide temporary medical assistance to injured personnel
- Completely automatically shut down auxiliary systems and dampers of the system after detecting poisonous gases in the outside environment
Key specifications
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Standard 10, 20, 30 POB Temporary refuge TR shelter, safe haven cabin, toxic gas refuge, H2S temporary refuge shelter
Customised 50-500 POB large H2S refuge shelter, large temporary refuge shelter, toxic gas refuge with multiple muster areas
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More information about temporary refuge (TR) shelter, toxic gas refuge (TGR), safe haven cabin
Don’t hesitate to contact us for more information about the temporary refuge shelter and toxic gas refuge. We are eager to explain the possibilities for your applications.
Don’t hesitate to contact us for more information about the temporary refuge shelter and toxic gas refuge. We are eager to explain the possibilities for your applications.
Temporary refuge (TR) shelter, H2S shelter, toxic gas refuge (TGR) shelter, safe haven cabin
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Temporary refuge (TR) shelter, H2S shelter, toxic gas refuge (TGR) shelter, safe haven cabin
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Temporary refuge shelter, H2S refuge shelter, toxic gas refuge cabin, emergency refuge chamber, disaster refuge
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