The invention relates to a head (2) for a tank (1) used to store pressurised gas, comprising, in an integrated manner: at least two components (13.sub.1, 13.sub.2) for treating, distributing and/or shutting off the gas; an upstream connector (20) suitable for being removably attached in a boss (4) of the tank (1); and downstream outlet pipes (21.sub.1, 21.sub.2) suitable for connecting the head (2) to any system using said gas by means of the aforementioned components (13.sub.1, 13.sub.2). According to the invention, each component (13.sub.1, 13.sub.2) comprises at least two sealing devices (14.sub.1, 14.sub.2) defining an intermediate space therebetween, and at least one pipe (12), called tapping pipe, connects each of the intermediate spaces and a common space (8) into which ail the tapping pipes (12) emerge, with an orifice (15) providing a connection between the common space (8) and a gas-detection device (16).

A high pressure tank of a high pressure tank apparatus includes: a resin-made liner; a reinforced layer; a supplying/discharging hole to which a supplying/discharging flow path is connected via a connecting section; and a supplying/discharging-side lead-out hole that leads out a fluid interposing between the liner and the reinforced layer. A leaked fluid storage section is capable of storing a leaked fluid that has leaked from the connecting section. A supplying/discharging-side discharge flow path is provided independently from the leaked fluid storage section, and, when an opening/closing valve opens, discharges to the air a temporary release fluid that has been led out via the supplying/discharging-side lead-out hole. A control section, when it has judged, based on a detection result of a detecting unit, that there is a condition enabling the temporary release fluid to be discharged, opens the opening/closing valve.

A modular subsea fluid storage unit has a variable-volume inner tank having a rigid top panel and a peripheral wall that is flexible by virtue of concertina formation. The peripheral wall is extensible and retractable vertically while the horizontal width of the tank remains substantially unchanged. A side wall of a lower housing part surrounds and is spaced horizontally from the peripheral wall of the inner tank to define a floodable gap between the peripheral wall and the side wall that surrounds the tank. An upper housing part extends over and is vertically spaced from the top panel of the inner tank and overlaps the side wall to enclose the inner tank. The floodable gap and the upper housing part enhance thermal insulation and trap any fluids that may leak from the inner tank.

A tank that may be used in combination with an actuating means such as a pneumatic door actuator includes a first, inner, enclosure positioned and enclosed within a second, outer, enclosure, to provide an enclosed chamber between the inner enclosure and outer enclosure. The pressure in the chamber may be measured with a gauge that does not extend into the inner enclosure. The measured pressure may then be monitored and compared in order to detect a change in pressure and thereby also detect a leak through a wall from the inner enclosure. The tank may also be used to inflate and/or deploy an emergency evacuation slide in an aircraft.

The present invention is directed generally to the field carbonated beverage dispensing systems having a replaceable carbon dioxide storage cylinder. Such systems may be embodied in the form of a unitary apparatus including, but not exclusively, on-bench, under-bench or freestanding beverage cooling units. The invention may be embodied in the form of a beverage dispensing unit having a gas input connector configured to make gas tight connection to a gas container configured to hold a gas under pressure and a mass detection device. The gas input connector and mass detection device are arranged such that when a gas container is connected to the gas input connector, the mass detection device is capable of detecting a mass associated with the gas container. The unit may further have a gas container support extending from or about the mass detection device configured to maintain a gas container connected to the gas input connector in a position such that it bears on the mass detection device so as to allow the mass detection device to measure the mass of the gas container and any gas contained therein. Computer-implemented methods for monitoring the level of gas are also provided.

A storage tank includes a frame, tank assembly, and scrubber system. The tank assembly including a vessel supported by the frame and having a first end, a second end, and a polygonal sidewall extending from the first end to the second end. The vessel further having a top, a bottom, at least one side, and an internal surface, and an outlet fluidly coupled with the bottom; and a chemical-resistant lining associated with the internal surface of the sidewall and being substantially flexible. A scrubber tank is supported by the frame and fluidly connected to the vessel to receive vapors from the vessel in a way that when a vapor absorption material is disposed in the scrubber tank, the vapors pass into the vapor absorption material.

A device equipped with a tank includes: a tank storing gas; a receptacle to be coupled to a gas supply nozzle; a filling passage communicating the tank with the receptacle; and a determination unit configured to determine whether there is a leak in the filling passage based on an amount of decrease in pressure in the filling passage per unit time, after supplying of the gas cooled to below freezing to the tank through the receptacle and the filling passage is finished, when a temperature of the receptacle is a predetermined temperature or greater and a pressure in the filling passage in a state where all valves opening and closing the filling passage are closed is greater than a first pressure, wherein the receptacle incorporates a check valve inhibiting backflow of the gas from the filling passage.

A hydrogen refueling station evaluation device includes a socket that is supplied with hydrogen, a hydrogen tank that stores the hydrogen supplied through the socket, and a discharge pipeline that discharges hydrogen from the hydrogen tank to the atmosphere. A discharge valve adjusts open and closed states of the discharge pipeline. A tank protection valve achieves a state in which the socket and the hydrogen tank are connected to each other, a state in which the socket and the discharge pipeline are connected to each other and the hydrogen tank is closed, and a state in which all of the socket, the hydrogen tank, and the discharge pipe are connected to one another. A gas supplier supplies an inert gas to the socket and a controller operates the tank protection valve, the discharge valve, and the gas supplier.

A storage tank includes a frame, tank assembly, and scrubber system. The tank assembly including a vessel supported by the frame and having a first end, a second end, and a sidewall extending from the first end to the second end. The vessel further has a top, a bottom, at least one side, an internal surface, and an outlet fluidly coupled with the bottom. A scrubber tank is supported by the frame and fluidly connected to the a top of the vessel to receive vapors from the vessel in a way that when a vapor absorption material is disposed in the scrubber tank, the vapors pass into the vapor absorption material.

The present invention relates to a method for determining loss of gas in a gas container. According to an embodiment of the present invention, the method for determining the loss of gas in the gas container is characterized by including the steps of (a) filling a first container (10) with a component gas and a balance gas, (b) measuring a gas pressure inside the first gas container (11), (c) allowing the first gas container and a second gas container having an evacuated inside to communicate and performing a first-stage gas pressure split, and (d) measuring a gas pressure inside the second gas container, wherein an amount of the component gas adsorbed inside the gas container is calculated through a difference between a measured value of step (b) and a measured value of step (d) and is determined as an amount of gas loss.