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JP4641894B2 |
To provide a flow passage for power generation enabling the easily maintenance by taking out a windmill generator while preventing swirl from occurring in a joint section. This flow passage for power generation comprises a lateral flow p...
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JP4644567B2 |
To provide a vibration reducing member which can reduce vibrations generated on a screen. The vibration reducing member 100 comprises an abutting part 110 abutting on a vibration part of a screen bar 141 comprising the screen 140, a supp...
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JP4641911B2 |
To enable a given quantity of water to be taken in, without causing a decrease in the quantity of water intake or a rupture in a screen. An intake 3 is formed in a river etc. 2, and the screen 31 is mounted on the intake 3. Water in the ...
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JP4639163B2 |
To solve the problem that it has been difficult to normally bring connecting faces of concrete blocks into contact (overall contact) with each other between the existing side and the connecting side in the case of very heavy concrete blo...
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JP2011026939A |
To provide a low cost and simple dust-removing device using a highly durable resin net durable for a long period of use, so as to remove the dust which can not be completely removed through a steel screen provided in water-intake (draina...
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JP2010275853A |
To pump up seawater to a water reservoir on a mountain by a wave force, to generate electric power by hydraulic power thereof, and to use the wave force to the maximum by a structure simplified to the limit.Waves are collected and height...
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JP4596338B2 |
To provide a device for performing hydraulic power generation without being constructed to improve power generating efficiency with a hydraulic water stream resulting from deep draft, and for performing water quality purification while s...
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JP4590794B2 |
To highly accurately predict the generated power of a run-of-river type dam. In the power plant of the run-of-river type dam, since a water storage function for preventing the flood of a downstream area is not originally provided differe...
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JP4586104B2 |
To provide a hydroelectric power generation system capable of regulating the water quantity and water flow velocity to desired ones according to the state and size of a river. This hydroelectric power generation system S includes a water...
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JP4573618B2 |
To provide a river water intake structure which is constructed by excavating a recess connected to a quay having an intake port formed therein, wherein deposition of sand on the recess is prevented by employing a simple and inexpensive m...
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JP2010248842A |
To determine a time point for water intake stop, and to restart in order to obtain maximum generated electric energy while restraining a large amount of a sediment inflow when water is discharged in a run-off river-type hydroelectric pow...
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JP4573081B2 |
To provide a method capable of easily forming a water tunnel for connecting water reservoirs by excavating a tunnel in a state to cover a part as a tunnel opening in advance without emptying the water reservoirs. A freezing means 4 is pr...
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JP4570493B2 |
To provide an electric screen which facilitates the construction and needs only a narrow area for the construction work when long electrode rods are constructed. The electric screen 1 is constructed as follows. Namely, a fixing concrete ...
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JP4571134B2 |
The invention relates to an energy generator powered by tidal currents and comprises a turbine (10) in a turbine housing (30) for rotation therein about a substantially vertical axis. The turbine (10) is connected to a supporting column ...
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JP4562521B2 |
To provide a dust transportation device of a hydraulic power plant capable of transporting dust discharged from a water tank to a place enabling a transportation vehicle such as a dust collecting vehicle or the like to move forward witho...
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JP4545476B2 |
To provide a head race for water-power generation, which facilitates maintenance thereof, and ensures stable power generation. The head race 5A is arranged in a river for introducing water for water-power generation from the river into a...
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JP4544750B2 |
A method for reducing frictional loss in unlined tunnels or other tunnels with a rough wall surface and/or irregular cross section. A flexible or rigid pipe with a cross section similar to or somewhat less than the largest circular open ...
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JP2010196721A |
To provide a pipe closing device and method for putting a component through a manhole, and closing a flow of fluid to the inside of a pipe even when a target pipe diameter is large.A plurality of rigid frame members 13a to 13f are assemb...
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JP4541730B2 |
To provide a means for preventing an intake, a fish net and the like from being damaged without causing hindrance to navigation of a ship, even if an anchor of the ship, a trawlnet and the like get brought into contact with the intake, d...
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JP4537228B2 |
To solve the problem that a buried pipe is installed in a deep position, because buoyancy after construction is suppressed by earth covering infilled into an upper section, in the following conventional construction method, though an ant...
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JP3161525U |
To provide a hydroelectric power generation system which improves construction cost and environmental problems, which has been a problem of a conventional hydroelectric power generation method, and a circulation type combined hydroelectr...
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JP4518811B2 |
To provide a device for preventing fish from straying and entering capable of urging all fish to take proper avoid action at early stage when fish approaches an intake or a discharge channel of a power station to prevent fish from strayi...
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JP4514257B2 |
To provide an intake hardly affected by upper water, capable of being installed even in a site of the shallow depth of water, and capable of preventing sedimented sand or the like from flowing in. A horizontal flange-like training plate ...
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JP4510385B2 |
To provide a water tunnel electric inspection vehicle capable of being traveled even in a place having the depth of water deeper than a position getting in a vehicle of a sitting attitude in the water tunnel electric inspection vehicle u...
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JP2010150830A |
To prevent wood pieces and dirt from being caught by an intake screen. This screen cover 10 is formed of a bamboo material 11 which is disposed at a water intake 2 to which the screen 3 is attached and has gaps allowing water to pass the...
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JP4496994B2 |
To provide a double flexible joint mounting structure which ensures the flexibility of an external flexible joint embedded inside underground structures, and functions to connect the underground structures with good flexibility and water...
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JP4488275B2 |
To provide an installation method for duct and a block for duct, where it is unnecessary to wind a wire rope around blocks for duct, installation work is facilitated, neat and proper appearance is obtained, and lids are made difficult to...
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JP4451553B2 |
To provide a buoyancy preventing structure constructed in the ground having a high groundwater level or in the soft ground and capable of preventing the uplift pressure applied to an underground common duct by the pressed groundwater. An...
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JP4443796B2 |
To remarkably shorten the construction time in a construction field when reinforcing an iron penstock generally hard to work. This penstock reinforcing method has a fitting process for fitting a CFRP mold 11 previously molded in response...
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JP4441460B2 |
To specify a water leakage portion in a water channel at a pin point. This method of specifying the water leakage portion 26 in the water channel 20 is provided with: the first process for setting an objective area 20a for leakage inspec...
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JP4411245B2 |
To provide a river water intake device sufficiently securing intake function with a simple structure, causing less sediment deposition, facilitating removing work even if sediment deposit, and gentle to the environment, and to provide an...
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JP4412700B2 |
Method for hydraulic removal of sediment from a sand trap, said sediment constituting particles varying in size from rocks to fine-grain particles, where the sediment is sucked into a substantially horizontally or inclined slotted pipe (...
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JP4410286B2 |
To provide a stainproof coating composition capable of sustaining the stainproof effects for a long period. The stainproof coating composition contains [A] an elution-controlling agent containing one or more kinds of modified silicone oi...
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JP2010007441A |
To cope with depletion of oil resource by generating power from natural energy.An energy problem can be solved by generating power from infinite natural energy. For example, a tidal power generator J utilizes the ebbs and flows flux and ...
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JP2010001673A |
To construct a system for removing refuse adhering to a screen of a water tank without spending much cost.There is provided a method of operating the refuse removing system 1 which is applicable to the case where water from a water sourc...
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JP2010001669A |
To provide a hydroelectric generating system which can synthetically and efficiently operate each hydroelectric generating equipment.This hydroelectric generating system, in which the plurality of pieces 1 and 2 of hydroelectric generati...
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JP2009299285A |
To provide an electric screen capable of greatly enhancing durability of an electrode bar and capable of preventing the intrusion of fish etc.This electric screen 100 comprises the plurality of electrode bars 40 which are suspended to a ...
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JP4382987B2 |
The invention concerns a tubular structure comprising, in cross-section transverse to its axis (O), at least three prefabricated elements, respectively two side wall elements (32, 32') resting on the setting surface and at least one uppe...
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JP2009274976A |
To provide a method for preventing adhesion of organisms that surely prevents adhesion of aquatic organisms and the like to equipment for circulating and storing sea water or water without exerting bad influences on the environment or th...
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JP4364427B2 |
The invention relates to a device for energy conversion from wave movement in water, comprising a frame connectable to the bottom, a container for containing a gas, which container is formed by at least two parts, a first part connected ...
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JP4368517B2 |
To provide a base isolation structure using conventional vibration isolation apparatuses, for an underground structure, which can exert the function of the vibration isolation apparatuses without exposing the same to the outside. The bas...
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JP4358369B2 |
To provide a structure of water discharge pit capable of compacting the water discharge pit and reducing construction cost. The structure of water discharge pit for discharging from the bottom layer without bubbles by reducing bubble gen...
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JP4344703B2 |
To provide a weir bank for water way type hydraulic power generation capable of preventing sediment and trash from flowing into an intake of water into a hydraulic power plant and preventing the intake from being blocked by rock and misc...
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JP4339199B2 |
To provide a water-intake control method for a run-of-river type hydro-electric power plant which enables reduction in damage to the equipment of the power plant and an increase in the availability of the power plant, in consideration of...
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JP2009209606A |
To provide shear reinforcement structure capable of reducing labors and times for execution work, capable of shortening a term of works, and capable of preventing a shear reinforcement effect from getting low.This shear reinforcement str...
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JP2009155967A |
To provide a water jet suppressing device having simple construction for suppressing water jet from the exhaust port of an air exhaust pipe which is provided for expelling air mixed into water distributing in a water channel.The water je...
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JP4286824B2 |
To provide a cut-off device capable of cutting off water flowing into a generator unit mounted to a hydraulic pressure steel pipe and carrying out operation of the generator unit without aiming at inspection when the generator unit in a ...
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JP2009136782A |
To provide a method for removing fouling in a pipeline which can remove fouling adhering to the inside of a pipeline at a low cost without stopping a power generator in a waterpower plant.A plurality of spherical bodies 2 stored together...
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JP2009133150A |
To provide a shear reinforcing structure which reduces time and trouble for carrying out work, contributes to shortening of a construction period, and prevents degradation of shear reinforcing effect.The shear reinforcing structure funct...
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JP2009127010A |
To provide: an antifouling coating material composition which exhibits excellent antifouling effect as designed and is excellent in workability and safety when a coating material is produced and when a coating film is formed; a method fo...
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