摘要:
Apparatus for facilitating recovery of objects from a hydraulic channel containing a flowing fluid, the apparatus comprising: a porous planar surface for disposition within the hydraulic channel, the porous planar surface being elevated in the direction of flow in the hydraulic channel at an angle to a plane extending normal to the force of gravity such that the horizontal component of the angle of elevation is greater than the vertical component thereof; wherein the porous planar surface is configured to permit the fluid flowing in the hydraulic channel to flow through the porous planar surface without materially obstructing the flow of the fluid in the hydraulic channel.
摘要:
A system of harvesting sea creatures from a trench holding the sea creatures in seawater, including a trench and a harvesting apparatus that extracts the sea creatures from the trench. The trench includes a gate at one end of the trench. The gate insertable into an opening at the end of the trench to prevent seawater from entering or exiting the trench and removable from the opening to allow the seawater to enter or exit the trench. The harvesting apparatus includes a conveyor that inclines. The conveyor includes a conveyor belt and a wedge at one end of the conveyor that contacts the bottom floor of the trench when the conveyor is inclined. The wedge directs the sea creatures onto the conveyor so that the sea creatures are conveyed by the conveyor belt out of the trench.
摘要:
Zur Lösung der Aufgabe, ein Verfahren zur künstlichen Erosion von Staugewässern zur Verfügung zu stellen, wird ein Verfahren vorgeschlagen, wobei eine Verteilung der mittleren Korngröße von Sedimenten des Staugewässers über die Grundfläche des Staugewässers ermittelt wird, wobei ein Sedimentbedarf eines Unterwassers ermittelt wird und wobei entsprechend dem Sedimentbedarf des Unterwassers zumindest eine Verlagerung der Sedimente des Staugewässers in das Unterwasser erfolgt.
摘要:
Die Erfindung betrifft eine Vorrichtung (10, 11) zur Bestimmung eines Materialtransportmerkmals in einem fließenden Gewässer mit einer Fließrichtung (F), aufweisend wenigstens einen Störkörper (3) zur lokalen Veränderung einer Sohlschubspannung in dem fließenden Gewässer und eine dem wenigsten einen Störkörper (3) zugeordnete Verschubeinrichtung (6), die dazu ausgebildet ist, die Form und/oder die Position des Störkörpers (3) in dem Gewässer nach Maßgabe einer Ansteuerung zu verändern.
摘要:
Es wird ein Regenwasserfilter für eine Zisterne beschrieben, die mit einem Siphon (17) zwischen der Zisterne und dem Schmutzwasserablauf versehen ist. Dieser Siphon ist integraler Bestandteil des Gehäuses (1) des Regenwasserfilters. Dazu besitzt dieses ein Unterteil (3), durch das ein Schmutzwasserablaufrohr (13) hindurch läuft und in dem das Schmutzwasserablaufrohr (13) eine Öffnung mit einer Überlaufkante (16) hat. In der Seitenwand des Unterteils (3) befindet sich eine Außenöffnung (14), die zur Bildung eines Siphons (17) mit einer Trennwand (18) abgedeckt ist. Demnach bilden der Siphon (17) und das Gehäuse (1) eine kompakte Einheit, die leicht in einer Zisterne installiert werden kann.
摘要:
The water velocity enhancement in canal structure for velocity based electrical power generation system /turbine mainly comprise of main canal (1), receiving canal (2), head regulator (3) and cross regulator (4),sluice gate (5), hump (6) bucket (7), canal bed level (8), rubble (9) (small stones) or any other suitable material, turbine (10), turbine blades (11), velocity bed (12). Velocity enhancement is achieved by making constructive use of the hump (6) by making velocity bed (12) from the hump level to the height so that the water directly comes across the turbine blades (11).
摘要:
The present invention relates to a vertical current-switching device for water-treatment channels such as artificial wetlands, reaction tanks which take the form of water-treatment channels, water channels which provide connections between water-treatment facilities, and ecological channels; the vertical current-switching device being devised so as to be able to exchange the treatment water flow in an upper part and the treatment water flow in a lower part of the water channel, not only without a separate bypass channel but also without any pressurizing or water pumping facility; wherein the upper part and the lower part of the water channel each comprise a pair of inclined transverse plates which are provided transverse to the water channel at a predetermined incline and are provided symmetrically to each other about their mutual central line, and a pair of triangular flat plates connecting the lower edge of the upper inclined transverse plate and the upper edge of the lower inclined transverse plate. The present invention allows straightforward and rapid construction of vertical current-switching water channels and hence makes it possible to obtain the advantageous effect that water-treatment efficiency is improved by employing the unpowered vertical current-switching water channel in water-treatment facilities of diverse types.
摘要:
The invention relates to a method for dredging without the significant causing of pollution nor significant consumption of water. The invention concerns the field of civil engineering, the dredging of impoundments and of watercourses. Common techniques have a number of drawbacks among which: waste pollutants, considerable consumption of water, and difficulty in manipulating the displaced silt. The inventive device is preferably characterized by the combination of the following processes that rectify the aforementioned drawbacks: vibrating the silt to be treated; cutting the silt by a cutter at a speed sufficient for obtaining, while adding water, a homogeneous mixture; pumping the mixture; injecting a flocculation product that causes, at the moment of release, the segregation of the mixture; release or recuperate clean water; manipulating, without hydraulic drive, and reusing the flocculated silt. Variants consist of modifying, according to the specific case, the relative impact of diverse combined processes. The inventive method is particularly suited for dredging dammed lakes.