The invention relates to the industrial field of gas storage systems, and concerns a pneumatic membrane gasometer (1 ) for the storage of hydrogen gas at low pressure, comprising: - a first bag-shaped membrane (10) adapted to delimit a hydrogen storage chamber (C1 ); - a second membrane (20) adapted to partially delimit a pressurization chamber (C2) superimposed, at least in part, on said storage chamber (C1 ); - a third membrane (30), placed resting on top of said first membrane (10), fixed in an impermeable manner at least to said second membrane (20), adapted to define, with said first membrane (10), a cavity (2) open towards the outside of the gasometer (1 ); - hydrogen supply and discharge means associated with said storage chamber (C1 ); - pressurization means of said pressurization chamber (C2) by means of air; - mechanical anchoring means (4) to a base surface (S) of said first (1 ), second (20) and third (30) membranes; - a natural passive ventilation system to vent any hydrogen losses to the outside, comprising a duct (5) adapted to connect cavity (2) to the outside environment passing through said pressurization chamber (C2).
Disclosed is a pressostatic odor control cover for slurry treatment tank with a device for reducing the inner volume occupied by harmful and malodorous gases emitted from the surface of the slurry. The treatment tank is delimited by a base and by lateral containment walls. The cover includes: a gas impermeable flexible membrane; a gas-tight continuous fixing unit of a margin of the membrane to the tank; an insufflation unit of air inside the cover; and a discharge valve of the air out of the cover. The odor control cover also includes a diaphragm permeable to liquids and to gases, arranged to delimit a reduced volume of the odor control cover available to the harmful gases and to the malodorous substances released from the slurry. The air insufflation unit is connected to the cover above the diaphragm. The discharge valve is connected to the cover below the diaphragm.
Pressostatic odor control cover (1 ) for slurry (L) treatment tank (2) with device for reducing the inner volume occupied by harmful and malodorous gases emitted from the surface of the slurry (L), where said treatment tank (2) is delimited by a base (2') and by lateral containment walls (2"), where said pressostatic odor control cover (1 ) comprises: - a gas impermeable flexible membrane (4); - gas-tight continuous fixing means of a margin (4') of said membrane (4) to said tank (2); - insufflation means (5) of air inside said cover (1 ); - discharge valve means (6) of said air out of said cover (1 ); where: - said odor control cover (1 ) also comprises a diaphragm (7) permeable to liquids and to gases, arranged to delimit a reduced volume of said odor control cover (1 ) available to the harmful gases and to the malodorous substances released from the slurry; - said air insufflation means (5) are connected to said cover (1 ) above said diaphragm (7); - said discharge valve means (6) are connected to said cover (1 ) below said diaphragm (7).
elements for processing and displaying (5) the value of the quantity of gas corresponding to the generated signal; a filiform, flexible element (6) for connecting the instrument (12) and the membrane (2); the filiform, flexible element (6) including at least one portion constituted by an elastic member (7).
Filling level meter (4) for membrane gasometer (1 ), consisting of at least one accumulation chamber (C1 ) arranged for containing a gas, comprising an impermeable flexible membrane (2) capable of moving between two positions corresponding to the chamber being totally full and totally empty, wherein said meter (4) comprises: an instrument (12) associated with a fixed element (3, 9), arranged for generating a signal of measurement of a physical value that can be correlated to the quantity of gas contained in said chamber (C1 ); means for processing and displaying (5) the value of the quantity of gas corresponding to said generated signal; a filiform, flexible means (6) for connecting said instrument (12) and said membrane (2); where said filiform, flexible means (6) comprises at least one portion constituted by an elastic means (7).
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