Abstract:
A purification method by mixing and diffusion of a closed water zone involves the steps of sucking bottom layer water and surface layer water, preparing mixed water by mixing them before discharging, and discharging mixed water into a water layer having substantially the same temperature as that of mixed water to form and diffuse a density current of mixed water. Therefore, convection in a vertical direction can be prevented, and mixed water can be quickly diffused across a broad range of a closed water zone.
Abstract:
An apparatus and associated method for mixing at least a first fluid phase having a first density and a second fluid phase having a second density, the apparatus comprising; at least one container (1), the container comprising at least one inlet (2) for a multiphase flow and at least one outlet (3) at a lower axial end of the container (1), a hollow flow regulating device (4) axially arranged within the container (1), wherein a first end of the flow regulating device (4) is arranged in a distance from the outlet (3) providing a drainage gap (5) between the flow regulating device (4) and the outlet (3), which drainage gap (5) has a drainage area, the flow regulating device (4) comprising a number of perforations (6) along the axial length thereof and a discharge means (7) in a first end, which discharge means (7) opens towards the outlet (3), the flow regulating device (4) being connected to a position adjustment device (8), the position adjustment device (8) being arranged to move the flow regulating device (4) in the axial direction, thereby adjusting the drainage area of the drainage gap (5).
Abstract:
L'invention concerne un dispositif d'homogénéisation des boues pour digesteur anaérobie infiniment mélangé. Conformément à l'invention, le fond dudit digesteur (11) est divisé en au moins deux secteurs (a, b, c, d, e, f, g) séparés par une paroi (12) de hauteur définie, chacun des secteurs étant équipé d'une canalisation d'aspiration des boues (14a, 14b, 14c, 14d, 14e, 14f, 14g), immergée, chacune desdites canalisations étant reliée à un dispositif de pompage unique (13) comprenant au moins une pompe assurant l'aspiration et le refoulement des boues, ledit refoulement des boues étant réalisé au travers d'une canalisation de refoulement remontant les boues aspirées au fond dudit secteur vers la surface dudit digesteur.
Abstract:
The water and the solvent are contained inside the same tank (1) where they can separate out into layers as a result of their different specific weights. The tank contains at least one pipe which acts as a submerged element (P) having a plurality of suction holes (11, 11') uniformly spaced out along its entire length and which is connected at its upper end to float means (3) and is hinged at its lower end in the region of the bottom of the said tank so that it passes progressively through the entire height of the column of liquid present in the said tank and so that all its holes always remain submerged in the said column of liquid, the submerged element being connected via any intermediate and/or end point to external suction means (12, 13). When a mixture made up of the desired proportions of the two liquids is fed into the tank, and if these liquids separate out into layers as a result of their different specific weights, a portion of the submerged element of length directly proportional to the height of the layer passes through each layer (S, A, SA) of the liquid column so that, at any given moment, it is possible to suck up from the tank a mixture made up of the proportions of the two liquids as determined at the outset.
Abstract:
A liquid is supplied to a vessel (10) to form a pool (21) from which it discharges through a venturi. A supply pipe or pipes (12, 30) convey other liquids and/or gases from separate sources or from above the liquid pool into the venturi for mixing with the liquid. The supply pipes can extend through the pool and be perforated (22) to tend to maintain the level of the pool. Associated with the venturi are pressure sensors (40, 41) for measuring flow and a densiometer (52) permitting mass flow rate measurement of gas and liquid phases. The apparatus can be incorporated in a cartridge (60) for reception in a receptacle (61) at a subsea installation.
Abstract:
A system for use in a current of water for moving water between depths in a body of water comprises: a series of modules, each module formed from an array of pipes in a spaced side by side arrangement having a series of outlets along the length of the pipe, such that a venturi is defined between the walls of adjacent pipes; and a flow conduit having an inlet and connected to the pipes; wherein, in use, the inlet is positioned on the flow conduit at a first depth and the outlets are located on the pipes at a second depth, and water from the body can enter the flow conduit via the inlet and the pipes are connected to the flow conduit such that the flow of water between the pipes causes a venturi pump effect drawing water through the flow conduit and inducing a current flow in the pipes to transfer water through the pipes from the first depth to the second depth. The inlet and outlets are spaced apart from each other such that in use none of the outlets are located at substantially the same depth as the one or more inlets within a particular module.
Abstract:
The invention concerns a mixing assembly (1) comprising a mixing chamber (2) adapted to mix a soluble ingredient with a diluent, wherein the mixing assembly comprises an overflow channel (41), said overflow channel running along the external wall of the mixing chamber so that a liquid exceeding the capacity of the mixing chamber is able to flow in the overflow channel and the outlets (3) of the mixing chamber and the overflow channel allowing the liquid contained in the mixing chamber and the overflow channel to exit and mix in the same place. The invention also concerns a process for mixing a soluble ingredient with a diluent using the above mixing assembly.
Abstract:
A method of, and apparatus for measuring the relative proportions of oil and water in a flowing multiphase fluid comprising allowing the gas, oil and water phases of the multiphase fluid at least partially to separate, diverting at least some of the separated gas phase from the flowing fluid, into a bypass conduit, through a separating module, such as the tank of a homogenising unit, wherein the gas phase tends to separate and collect above a pool of fluid, and measuring the relative proportions of oil and water in the undiverted fluid. A valve is located in the bypass conduit which has an inlet leading from the upper section of the tank (where gas collects) and an outlet joining the outlet pipe leading from the homogenising unit downstream of metering apparatus.
Abstract:
A system for use in a current of water for moving water between depths in a body of water comprises: a series of modules, each module formed from an array of pipes in a spaced side by side arrangement having a series of outlets along the length of the pipe, such that a venturi is defined between the walls of adjacent pipes; and a flow conduit having an inlet and connected to the pipes; wherein, in use, the inlet is positioned on the flow conduit at a first depth and the outlets are located on the pipes at a second depth, and water from the body can enter the flow conduit via the inlet and the pipes are connected to the flow conduit such that the flow of water between the pipes causes a venturi pump effect drawing water through the flow conduit and inducing a current flow in the pipes to transfer water through the pipes from the first depth to the second depth. The inlet and outlets are spaced apart from each other such that in use none of the outlets are located at substantially the same depth as the one or more inlets within a particular module.