A method of fuel tank inerting includes separating process air into nitrogen-enriched air and oxygen-enriched air with an air separation membrane. A vacuum is applied to the air separation membrane to produce a pressure differential across the air separation membrane. The vacuum is manipulated to vary the pressure differential and vary purity of the nitrogen-enriched air.

A sparging evaporator for an inerting system including an outer vessel, an inner vessel within the outer vessel, and a plenum formed between the inner and outer vessels. The outer vessel includes a gas inlet for receiving inlet gas into the plenum, and a liquid inlet for receiving liquid fuel into the plenum. The inlet gas in the plenum generates a gas pressure that is exerted against a free surface of the liquid fuel in the plenum thereby forcing the liquid fuel and the inlet gas through an inlet of the inner vessel. The inner vessel contains a structure that promotes liberation of fuel vapor from the liquid fuel and enables the inlet gas in the liquid fuel to sparge the fuel vapor in the liquid fuel, thereby forming a fuel-enriched gas mixture that can be fed to a reactor of the inerting system.

A method of performing a selected task in a tank at least partially filled with an energetic substance includes, in part, configuring a mobile platform to be inherently safe by positioning spark-generating components in either or both of: (i) an inherently safe enclosure that prevents a spark occurring inside the inherently safe enclosure from passing to an exterior of the inherently safe enclosure, and (ii) a spark-neutralizing body formed of at least one non-flammable substance and positioned inside an enclosure, the spark-neutralizing body blocking direct contact between a spark from the enclosed spark-generating component and an energetic substance from occurring inside the at least one enclosure. The method also includes positioning at least one spark-generating component not inside any inherently safe enclosure that prevents a spark occurring inside the inherently safe enclosure from passing to an exterior of the inherently safe enclosure. The sparks are capable of igniting the energetic substances.

The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

A multi-function tank tool including a body, an internal passageway, an upper end and a lower end. The lower end is configured to connect a hose so that a fluid travels in the internal passageway. The upper end includes at least one opening communicating with an interior of the tank. A first hose can be connected to a lower end of the body. The tank may have oil, vapor and an oil/vapor interface. The tank tool can perform at least one of the following: grounding an interior of the tank using at least the tank tool and the first hose; agitating one or more fluids traveling through the internal passageway to mix the one or more fluids traveling through the internal passageway; directing a hot oil adjacent the oil/vapor interface using at least the tank tool and the first hose; and, attaching the tool to a floating tank roof.

The present application is provided with a fluid storage apparatus of a battery pack, including: a box, where the box has an inner cavity; a partition member, where the partition member is located in the inner cavity of the box, and the partition member divides the box into a fluid storage portion and a gas storage portion. The fluid storage portion is used to store spraying liquid and the fluid storage portion has a fluid outlet; the gas storage portion is used to store gas and the gas storage portion has a fluid inlet. And the partition member is configured to move toward the fluid outlet under the action of compressed gas in the gas storage portion.

An inerting system comprises an air separating device having an enclosure (40) having at least one air inlet (46) and one outlet (48) for oxygen-depleted air. The air separating device (18) is configured to generate, from an air inlet flow coming from the air inlet (46) of the enclosure (40), an outlet flow of oxygen-depleted air and to discharge the outlet flow of oxygen-depleted air through the outlet (48) for oxygen-depleted air. The inerting system (14) comprises a heating system (20), outside the enclosure (40), configured to heat at least one region of the enclosure (40).

The invention relates to an installed fire extinguishing apparatus, which has a pressure-resistant storage body (10) with an internal space (11) for accommodating the fire extinguishing material composition (1) transportable in a pipeline, at least one dispersion device (3), and at least one transport pipeline (20) which is suitable for transporting the fire extinguishing material composition (1) from the internal space (11) of the storage body (10) to the dispersion device (3) arranged at the use location (2), where the storage body (10) is formed by a long pipeline (C) or a pipeline (C) that returns on itself that has a straight line main axis (T) or a main axis (T) of another shape, a trigger part-unit (4) is installed in the transport pipeline (20), and the storage body (10) is connected to a filling fitting (6) serving for filling the fire extinguishing material composition (1) or the components of the fire extinguishing material composition (1) into the internal space (11) of the storage body (10), the storage body (10) is coupled with at least one gas vessel (30), the internal space (31) of the gas vessel (30) is connected to the internal space (11) of the storage body (10) with a connection line (32) that permits the flow of medium, the gas vessel (30) and/or the storage body (10) and/or the connection line (32) has a valve (33) that influences the flow of medium between the gas vessel (30) and the storage body (10). The characteristic feature of the invention is that when the fire extinguishing apparatus is in a condition ready for use, more than 94% of the internal space (11) of the storage body (10) is filled with fire extinguishing material composition (1), where the composition (1) has a liquid and a gaseous component, and at least a part of the external surface (12) of the storage body (10) is surrounded by a material that reduces temperature fluctuations (5).

A fire protection system for fire protection for liquid hazardous material. The system having at least one storage arrangement for storage of the liquid hazardous material in at least one storage vessel, at least one collecting area, and a first plurality of extinguishing fluid outlets, wherein the at least one storage arrangement is configured to direct the liquid hazardous material into the at least one collecting area in the event of escape of the liquid hazardous material from the at least one storage vessel, and wherein the at least one storage arrangement, the at least one collecting area and the first plurality of extinguishing fluid outlets are arranged relative to one another such that a firefighting action can be executed by a extinguishing fluid for use with a non-hazardous material in case of a fire event of the liquid hazardous material.

The present invention relates to floating roofs for tanks that are used for storage of flammable liquids, such as petroleum or refinery products such as diesel, kerosene, gasoline, etc. In one aspect, the present invention concerns a method for forming a fire retardant coating of a floating roof, and a floating roof obtainable thereby. In another aspect, the present invention relates to improvements in structure of a floating roof. The floating roof tank may be a seamless composite floating roof tank for refineries.