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With the gradual deepening of the development and utilization of oil and gas resources by human beings, oil and gas exploration and development have shifted from the shallow continental shelf to the deep sea, drilling engineering operations must also be carried out in the ocean away from the continental shelf.
In the event of a fire, explosion, leakage or other critical situation on the platform, the personnel on board can escape to the temporary refuge shelter, guarantee the life safety of the personnel in the temporary shelter within a certain period, and organize the person discuss the escape strategy, and gain time to be rescued.
Features of temporary refuge shelter provided by TLS:

1. The positive pressure system is designed to maintain a certain positive pressure in the temporary shelter compared to the outdoor atmosphere during emergency conditions, preventing toxic gases from outside the container from entering the temporary shelter.
2. The compressed air is stored in the air bottle in the shelter, which can maintain the breathing needs of all the people who escaped to the temporary shelter on the living platform within a certain period.
3. The structure complies with the DNV2.7-1 design, and the thermal insulation and fire protection standards of the shelter are A60 level, ensuring its fire-resistant integrity within 60 minutes.
4. The HVAC system should ensure that the heat on the enclose does not exceed the maximum human tolerance, can resist thermal stress, and can last for 60 minutes in an emergency.
5. The backup supply can ensure that the emergency power supply can activate the HVAC and lighting systems in the event of a mains power cut.

Offshore oil and gas development is recognized as a high-risk industry in the world. Once an accident occurs, it may cause casualties. Therefore, it is particularly important to ensure the safety of personnel in the process of offshore oil and gas development.
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A temporary refuge shelter (TR) is a place for personnel gathering and protection to evacuate, take emergency response measures and wait for rescue in case of fire, explosion and other accidents.
 
The function of temporary shelter (TR) in case of disaster

• Prevent the invasion of toxic gases for a certain period of time
• Maintain a breathable concentration in the container for 1 hour or longer through the air supply system
• Meet the A60 fire rating
• Provide communication, monitoring and control equipment necessary to ensure personal safety.

TLS offshore containers Int. offers an extensive range of containerized blast resistant modular / shelter that are cost effective and flexible. The containerized blast resistant shelters enhance worker safety within hazardous environments. These buildings provide a safe zone for employees and equipment within the process areas in the event of leaked vapor ignition or explosive risk.
Our blast resistant containers are available as standard 20ft, 30ft,  40ft or customized dimension. Those units can be joined together to form larger blast resistant modules.
Blast resistant modules are fitted with split type air conditioning. They have integrated ventilation shut down systems with an optional gas detection system. They also have the option of manual, security controlled or fully automated door system to ensure the appropriate solution.

Please contact us for more information sales@tls-containers.com

TR which has been designed to protect against toxic gas include the following:

• Positively pressurized (minimum of 50Pa)
• Airtight
• Fresh air is stored air cylinder to ensure availability of air for the duration of TR considering maximum TR POB, potential leaks sources, door opening, etc
• Entrances with double sets of doors (airlock facility with air curtain to purge toxic gas trapped with personnel entering the airlock) and located as far as possible away from sources of H2S, interlock shall be in place to prevent both airlock doors being opened simultaneously or to alarm to warn of this condition. The location on the doors to buildings should be such that entry to the building is from side which is not directly facing to facilities to reduce the potential toxic gas ingress while in use.
• Doors shall be closed all the time except when in use. Or be automatic closing, for example by magnetic hold open, released on gas detection. Attention should be paid to avoid hazards with automatically closing doors such as trapped fingers, e.g. doors should be slow closing.
• HVAC shall be automatically shut off on detection of toxic gas at the air intakes, and dampers in the air intakes and exhaust shall close to shut in the building. Reliability of detection shall be determined as part of the design, and shall comply with the requirement for the protection.
• Toxic gas detectors shall be provided at HVAC inlet as well as within the airlock. Alarm provision shall be provided accordingly.
• A mechanism to allow manual initiation of HVAC shutdown from within the TR.
• TR leak tightness test shall be carried out to ensure the gas tightness and to confirm the air exchange rate considered in design of TR. 

We are pleased to get a order of H2S temporary refuge (TR) shelter from a Kazakhstan client. At a facility, such as chemical processing plant or a floating production storage and offloading (FPSO), or a floating vessel, offshore platform or a industrial manufacturer, there are typically large volumes of flammable and explosive chemicals being used, stored, proceeded and transported. These potentially dangerous situations should occur. Depending on toxicity or intensity of the chemicals, a chemical release or blast can cause severe effects to personnels. Toxic gases produced from an explosion or loss of containment can lead to disorientation, incapacitation, or death.

The temporary refuge shelter (TR) or toxic gas refuge (TGR) is designed for drilling platform, offshore barge, oil & gas, petroleum, and chemical industries. The temporary refuge shelter is designed to protect personnel against H2S gases and other hazardous gases that can appear in case of an uncontrolled release. The design of the TR is that everybody can rush into the shelter immediately without any time-consuming air-locking process. During the stay of the people inside the TR they can breathe normally from the atmosphere in the room. The shelter is protected by over pressurization during stand-by as well as during emergency.

​More information about temporary refuge (TR) shelter | toxic gas refuge (TGR) | safe haven cabin
Don’t hesitate to contact us sales@tls-containers.com for more information about the temporary refuge shelter and toxic gas refuge. We are eager to explain the possibilities for your applications.
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Please download TLS containerised solutions of temporary refuge shelter product brochure for reference. ​