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
Ansys analysis result for blast resistant module

Ansys analysis result for blast resistant module

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. 
TOXIC GAS REFUGE SHELTER DESIGN RULES
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.
Drilling barge

Drilling barge

20pax temporary refuge shelter

20pax temporary refuge shelter | toxic gas refuge | H2S temporary refuge | 9 meters temporary refuge shelter | GA drawing of temporary refuge shelter