摘要:
Eine Vorrichtung (10) zur Oberflächenabsaugung des Wasserspiegels (14) eines Gewässers (12) besitzt eine an einer Abflussleitung anschließbare Wasserüberlaufvorrichtung. Eine Laubfangvorrichtung (30, 34) ist vor der Wasserüberlaufvorrichtung so vorhanden, dass zumindest auf der Wasseroberfläche (14) des Gewässers (12) schwimmende größere Pflanzenteile (18) oder Tiere nicht in die Wasserüberlaufvorrichtung gelangen können.
摘要:
PCT No. PCT/SE84/00163 Sec. 371 Date Jan. 25, 1985 Sec. 102(e) Date Jan. 25, 1985 PCT Filed May 3, 1984 PCT Pub. No. WO84/04743 PCT Pub. Date Dec. 6, 1984.Excessive oil contamination creates difficulties for water entering waterways. The invention reduces these difficulties by causing the water to flow through three passages on its way to the inlet, the first passage comprising an oil barrier having a net stretching from the surface of the water, preferably down to the bottom of the waterway, the second comprising a filter cloth with a mesh size between 0.2 and 2 mm2 and the third comprising a filter formed of particles with closed cells which have been perforated.
摘要:
"IMPROVEMENT ON FACILITY FOR REMOVAL OF MATERIALS AND / OR POLLUTING SUBSTANCES CONTAINED IN WATERCOURSES", applied to facility comprising : the implementation of a sandbox arranged at the bottom and in a stretch of the watercourse, followed by a floating garbage fence arranged substantially transversely to the watercourse; whereas downstream and at a certain distance from this garbage fence is provided a suspended and transverse metallic structure to the watercourse, in which curtains for selective injection and automatically set in motion are mounted, arranged spaced and interspersed by homogenization diffusers, these curtains are responsible for the injection of coagulants; by the injection of polymers into the watercourse to be treated, and ahead there is a phase for release of microbubbles of air, causing a flotation of these aggregate particles; allowing that from this flotation stretch arises, along the watercourse, a superficial agglomeration of the floated material, and the conduction by flexible and longitudinal barriers formed by synthetic membranes of this floated material to a transverse alignment of dredging modules, that extend through the entire watercourse's width promoting the concentration of floated material and its removal. This improvement consisting of all equipment (3, 4,7) originally installed transversally the watercourse, which are subject to partial or total removal from this transverse condition, allowing the clearance of part and/or entire bed of the watercourse.
摘要:
A trash screen comprises a first screen (1) and a second screen (7), the second screen being pivotally mounted relative to the first screen, and means (13) for pivoting the second screen relative to the first screen.
摘要:
"IMPROVEMENT ON FACILITY FOR REMOVAL OF MATERIALS AND / OR POLLUTING SUBSTANCES CONTAINED IN WATERCOURSES", applied to facility comprising : the implementation of a sandbox arranged at the bottom and in a stretch of the watercourse, followed by a floating garbage fence arranged substantially transversely to the watercourse; whereas downstream and at a certain distance from this garbage fence is provided a suspended and transverse metallic structure to the watercourse, in which curtains for selective injection and automatically set in motion are mounted, arranged spaced and interspersed by homogenization diffusers, these curtains are responsible for the injection of coagulants; by the injection of polymers into the watercourse to be treated, and ahead there is a phase for release of microbubbles of air, causing a flotation of these aggregate particles; allowing that from this flotation stretch arises, along the watercourse, a superficial agglomeration of the floated material, and the conduction by flexible and longitudinal barriers formed by synthetic membranes of this floated material to a transverse alignment of dredging modules, that extend through the entire watercourse's width promoting the concentration of floated material and its removal. This improvement consisting of all equipment (3, 4,7) originally installed transversally the watercourse, which are subject to partial or total removal from this transverse condition, allowing the clearance of part and/or entire bed of the watercourse.
摘要:
A trash rack for filtering large volumes of intake water generally of the type available to power-generating facilities. The trash rack includes reinforcing rods fabricated of non-metallic materials in a pultrusion fabrication process. The pultruded reinforcing rods are substantially lighter than prior steel reinforcing rods. The pultruded rods are flexible enough to give under impact and high-loading without fracture or permanent distortion, yet are strong enough to withstand the type of loading commonly experienced by such large-volume trash racks.
摘要:
Coverings for structures which can be installed in the ground are known. For example, these are drainage channels or manholes. In order to lock the covering on the structure, closures are known which comprise a snap bolt which is designed in such a way and is mounted movably on the covering (20) against the force of a spring device in such a way that, during closing of the covering (20), the snap bolt is forced back and snaps in behind a counterbearing (14, 14') fixed to the structure in a closure position. To simplify the arrangement and also to improve durability, it is proposed that the snap bolt is mounted in a housing (40) which can be fastened in a housing receptacle of the covering (20).
摘要:
The object of the invention is a mobile modular hydroelectric power plant that allows direct exploitation of a natural water stream and its installation into an environment has a minimal environmental impact. It consists of at least one macine modular part (2) that can be assembled in a modular way and includes at least one module of a turbine house (2.1), at least one turbine module (2.2), a grid (2.4) and a rack (2.5) with guides. Optionally, a mobile modular hydroelectric power plant can comprise at least one concrete modular part (1), into which a machine modular part (2) of the MHPP is insertable. When the MHPP comprises a concrete modular part, the MHPP can optionally be provided with two lifting modules at each side, by means of which the machine modular part of the MHPP can be lifted from the water stream. It is used to exploit low water heads of 10-1 m.
摘要:
The invention relates to a method and system for cleaning a water system, especially a flowing water system (5), such as a ditch, brook or river. Typically when cleaning a water system in accordance with the invention - a filter (2, 18) is held in the water system, which filter has a filter volume (12) equipped at least partly with walls (3, 7, 24, 25, 26) of filter cloth, whereby a part of the filter cloth is held at the bottom (6) of the water system at least essentially in the direction of the bottom, whereby solid material is sedimented onto it, - water from the water system is guided into the filter volume (12) and out thereof through the filter cloth, - solid material (28) in the water system is collected into the filter volume (12), - the solid material is removed from the water system in such a way that the filter is lifted out from the water system, so that the solid material mainly stays in the filter volume of the filter, and water runs out from the filter volume through the cloth of the filter.