JP3113225U - Hydro-air power generator - Google Patents

Abstract

A power generation apparatus is provided that has an extremely small influence of dust on power generation efficiency and is inexpensive in capital investment.
An ejector 2 that obtains a strong attraction force by a jet generated by a nozzle 3 having a diameter reduced by a driving fluid F is provided in the fluid conduit, and a fan 8 is rotated by air E sucked by the attraction force. This is a device for generating power by transmitting generated power to the generator 9. Since the ejector 2 has a simple structure having no movable mechanism, dust smaller than the diameter of the nozzle 3 passes through, and clogging and breakage hardly occur. Therefore, it is possible to provide a power generation device that requires no initial waterway structure and mechanical equipment and has low initial capital investment and maintenance costs.
[Selection] Figure 1

Description

The present invention uses liquid fluids such as factory waste liquids, hot spring drainage, household drainage, etc., as well as storage fluids such as sluices, adjustment ponds, recreational basins, reservoirs, lakes, rivers, agricultural waterways, etc. as driving fluids. The present invention relates to a hydro-air power generation device that generates power with energy.
More specifically, the present invention relates to a hydraulic air power generation apparatus using air sucked by an attractive force generated by an ejector by a drive fluid.

Conventional power generation devices include hydropower generation using the potential energy of water, thermal power generation using combustion thermal energy such as oil, and nuclear power generation using thermal energy of nuclear fission. Of these, thermal power and nuclear power are accompanied by the risk of greenhouse gas generation and radioactive contamination, but hydroelectric power generation is a clean power generation device with very little risk. On the other hand, civil engineering equipment such as dams, water intakes, water conduits, sand basins, surge tanks, and mechanical equipment for running water control and dust removal are required, leading to an increase in initial capital investment.
Furthermore, water turbines are easily affected by dust, and prevention of clogging and breakage has become an important issue. In particular, the smaller the scale, the more prominent the issue.

In response to this, the following power generator using hydropower was proposed.
The technique disclosed in Japanese Patent Application Laid-Open No. 2002-167740 guides water flowing into a dam from a river or the like together with gravel into a water guide pipe, and branches the water guide pipe up and down at an upstream portion of the water turbine. The gravel mixed water that has flowed down is separated into gravel pipes by gravity and inertia. This makes it possible to reduce construction costs by miniaturizing the scale of the dam, etc., by minimizing the accumulation of gravel and organic matter on the dam.

In addition, the technology disclosed in Japanese Patent Laid-Open No. 5-106547 is provided with a pipe having an inlet pipe, a venturi section, and an expanded section provided in the drainage water drop section of the nuclear power generation cooling water. The generated negative pressure is connected from the venturi section to the turbine through a pipeline, and the turbine is rotated to generate electric power.

Furthermore, the technique disclosed in WO99 / 67531 is a device that generates electricity by rotating a fan with water pressure installed in a fluid pipe such as an outdoor water and sewage pipe.
JP 2002-167740 A JP-A-5-106547 JP 99/67531 A

  In the configuration disclosed in Japanese Patent Application Laid-Open No. 2002-167740, litter of litter and twigs having a mass smaller than that of water is highly likely to flow into the water turbine, and there is a risk of clogging and breakage. It is difficult to apply in power generation.

  In the configuration disclosed in the publication of JP-A-5-106547, a venturi is employed as a means for generating an attractive force, but the attractive force generation efficiency is inferior. Furthermore, in the power generation method using a siphon, since the suction port is provided above the water surface in the 180 ° bend water supply pipe, the upstream and downstream pressures are not balanced, so that siphon flow does not occur. Therefore, application is difficult in terms of efficiency and mechanism.

  In the mechanism disclosed in WO99 / 67531, it can be used in a water supply pipe without dust. However, in pipelines that use sewers or river water as the driving fluid, it is difficult to apply because the power generation efficiency decreases due to clogging with dust or the like.

  An object of the present invention is to provide a power generation apparatus that has an extremely small influence on the power generation efficiency of dust and has a low capital investment in order to solve the above-described problems.

The device according to claim 1 uses a fluid in a liquid pipe as a driving fluid, a jet generating nozzle provided in the driving fluid pipe, a diffuser for generating an attractive force, and an intake chamber for supplying sucked air An ejector consisting of
An intake pipe,
A fan that converts the aerodynamic force into rotational force,
A generator with power transmitted to it,
The hydro-air power generation apparatus is characterized in that a fan or the like that sucks the atmosphere with an attractive force generated by an ejector generated by an ejector is rotated, and the rotational force is transmitted to a generator to generate electric power.

The invention described in claim 2 is a hydro-air power generation device having the function of claim 1 fixed to a door body of a sluice or a wall of a water storage facility.
The intake pipe that connects the ejector and the fan is a flexible pipe that can be bent and moved to support the vertical movement of the door body, and the inflow of dust that is installed at a distance where the intake flow velocity from the bell mouth intake becomes extremely slow. Is a hydro-air power generation device provided with a target screen.

The invention described in claim 3 is a hydraulic power generator having the function of claim 1 fixed to the downstream surface of the undulating gate door.
The water used as the driving fluid is water that overflows the top of the door body and / or water storage on the front surface of the door body.

The former intake has a square cross section through a bar screen that is parallel to the flow and has no horizontal connecting material downstream, and the latter is a bell mouth through a bar screen that is perpendicular to the flow expected to flow down when the door falls The shape or the like has a circular or quadrangular cross section, and is connected to a water conduit having a quadrangular cross section matched to the door stringer.
The water guide pipe is connected to an ejector comprising a jet generating nozzle having a reduced diameter on the water storage surface side, a diffuser for generating an attractive force, and an intake chamber for supplying the attracted air.

Furthermore, the intake pipe connecting the intake chamber and the fan is provided with a check valve that prevents water from entering when the door body falls, and the intake air pipe that also serves as the intake pipe in the pipe-shaped lower main girder of the door body. It is connected to the tube.
The hydropneumatic power generation characterized in that the intake pipe protrudes into the machine room per side door, and the fan installed in the machine room is connected to the intake pipe via a flexible pipe or a swivel joint. There is a device.

The invention described in claim 4 is a hydro-air power generation device in which a drop work provided in a free surface channel such as a river or agricultural channel has the function of claim 1.
Water serving as a driving fluid is taken from a bottom portion of the water channel or the like through a bar screen having a gradient that expects dust to flow down in the flow direction.
The driving fluid is guided to the head part horizontally in the water guide pipe having the height of the water channel or an appropriate width and having a square cross section, and the flow is changed vertically by the bent pipe.

The water guide pipe is connected to an ejector including a nozzle having a reduced diameter made of a polar shape inside and outside the bent pipe, a diffuser for generating an attractive force, and an intake chamber for supplying the attracted air.
The air intake chamber is composed of a space formed between the outer pole member and the bending member constituting the drop work, and the air intake pipe rising from the air intake chamber on both sides or one side to the ground is connected to the fan. It is the hydro-air power generation device characterized by being made.

Since the present invention has a structure in which the ejector that generates power does not have a movable mechanism, dust smaller than the nozzle diameter passes through the ejector, and therefore is hardly clogged or damaged.
Further, the ejector has a feature that the structure is simple and the apparatus can be made small in addition to a large attractive force because a large velocity gradient region is generated by the jet flow from the nozzle.
Therefore, it is possible to provide a power generation apparatus with low initial capital investment and low maintenance cost without the need for structures such as intakes, water conduits, sand basins, head tanks, and mechanical equipment such as water gates and dust removers.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing an outline of a hydro-air power generation device which is a representative diagram of the present invention.
In the hydro-air power generator 1 shown in FIG. 1, the ejector 2 squeezes the driving fluid F flowing through the water conduit 5 such as factory waste liquid, hot spring waste water, and domestic waste water with the nozzle 3, generates a jet flow in the diffuser 6, and generates the intake chamber 4. Attract air E from the atmosphere. The attracted air E rotates the fan 8 connected by the intake pipe 7 and transmits the rotation to the generator 9 to generate power.

FIG. 2 is a diagram showing an outline of a hydro-air power generation apparatus using water such as a sluice / reservoir as a driving fluid F.
2 includes a screen 12 fixed to a sluice door body / reservoir wall 10, a bell mouth intake 11, a water conduit 5, an ejector 2, an intake pipe 7, a fan 8, and a generator 9. When the installation place is a sluice, the intake pipe is a flexible intake pipe 7 a, and is connected to the fan 8 by a mechanism corresponding to the vertical movement of the sluice door body 10.
The fan 8 rotates by the attractive force of the air E attracted by the ejector 2 and transmits the rotation to the generator 9 to generate electric power.
The screen 12 for preventing dust inflow provided in front of the bell mouth water intake 11 is installed at a position separated to a distance at which the water absorption flow velocity becomes extremely slow, and reduces dust adhesion.

Next, FIG.3 and FIG.4 is a figure which shows the outline | summary of the hydraulic air power generation apparatus which used the water storage upstream of the undulation gate as a drive fluid.
In these drawings, the hydroelectric power generator 1 has a water conduit 5 and an ejector 2 fixed to the downstream surface of the hoisting gate door body 10a.
The water used as the driving fluid F is the water that flows over the top of the undulating gate door body 10a and the water stored in front of the undulating gate door body 10a. The overflow water intake port 11a has a screen 12a that is parallel to the flow without a lateral connecting material downstream. The water intake port 11 has a round or quadrangular cross section such as a bell mouth shape through a screen 12 perpendicular to the flow expected to flow down when the undulation gate door body 10a falls down, and the undulation gate door body 10a longitudinally. It is connected to the water guide pipe 5 having a quadrangular cross section matched to the girder.
The water guide pipe 5 is connected to an ejector 2 including a nozzle 3 for generating a jet whose diameter is reduced on the water storage surface side, a diffuser 6 for generating an air E attracting force, and an intake chamber 4 for supplying the air E to be attracted.

Further, the intake pipe 7 connecting the intake chamber 4 and the fan 8 is provided with a check valve 13 for preventing water intrusion when the undulating gate door body 10a falls down, and the pipe-shaped lower main girder of the door body has an intake pipe The fan 8 connected to the flexible intake pipe 7b is rotated in the machine chamber 14 on the side door via the torque shaft / intake pipe 7a, which is also used as a motor, and the rotation is transmitted to the generator 9 to generate electricity.

Finally, FIG. 5 is a diagram in which a head work provided in a free surface flow path such as a river / agricultural water channel is used as a hydro-air power generation apparatus.
In the hydro-air power generation device 1 shown in FIG. 5, a drop work provided in a free surface channel such as a river / agricultural water channel has the mechanism of the hydro-air power generation device 1.
The water serving as the driving fluid F is taken from the bottom of the water channel 15 or the like through the screen 12 having a gradient that expects the dust to flow down in the flow direction.

The driving fluid F is guided horizontally to the head part in the water guide pipe 5 having a rectangular cross section with a height corresponding to the water channel width, and the flow is changed in the vertical direction by the bent pipe. The water guide pipe 5 supplies a reduced diameter nozzle 3 made by the polarities of the inner wall material 3a and the outer wall material 3b of the bent pipe shown in FIG. 6, a diffuser 6 for generating an attractive force, and air E to be attracted. It connects with the ejector 2 which consists of the suction chamber 4 which carries out.

The intake chamber 4 is composed of a space formed between the outer wall member 3b and the bending member 16 constituting the drop work, and the intake pipe 7 that rises from the intake chamber to the ground through the walls 15 such as water channels on both sides is connected to the fan 8. The fan 8 is connected and rotated, and the rotation is transmitted to the generator 9 to generate electricity.

As a possibility that the arrangement of the ejector part and the fan part can take advantage of the flexibility of the intake pipe, the ejector part is installed in the mountain river and the escalator installed on the steep promenade is powered by the fan etc. It can also be run on.

It is a sectional side view of the hydro-air power generator used as a typical figure of this invention. It is a sectional side view of the hydroelectric power generator installed in a water storage facility. It is a sectional side view of the hydraulic air power unit installed in the undulation gate. It is a rear view of the hydroelectric power generator installed in the undulation gate. It is a perspective view of the hydro-air power generator installed in the head work of a river etc. It is the side sectional drawing similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hydro-air power generator 2 Ejector 3 Nozzle 3a Inner wall material 3b Outer wall material 4 Intake chamber 5 Water guide pipe 6 Diffuser 7 Intake pipe 7a Torque shaft / intake pipe 7b Flexible intake pipe 8 Fan 9 Generator 10 Sluice door body 10a Relief gate Door body 11 Reservoir intake 11a Overflow water intake 12 Screen 12a Screen 13 Check valve 14 Side door machine room 15 Water channel 16 Folding member constituting air drop E Air F Drive fluid

Claims (4)

Power is generated by rotating the fan with air sucked by an ejector consisting of a nozzle that generates a jet, an intake chamber that supplies air, and a diffuser that generates an attractive force. Hydro-air power generator that generates electricity by transmitting to the machine. The hydro-air power generator according to claim 1, wherein the liquid fluid is water led from a water storage facility.   2. The hydraulic power according to claim 1, wherein water and water stored in the undulation gate are used as a driving fluid, and power generated by rotating a fan with air sucked by the ejector is transmitted to a generator to generate electricity. Air power generator. Air that is sucked by an ejector composed of a water guide pipe and a diffuser that has a screen with an angle that expects dust to flow down at the bottom of a free surface flow channel that has a head drop, and that draws water from the screen to the nozzle The hydro-air power generator according to claim 1, wherein the power generated by rotating the fan is transmitted to a generator to generate electric power.

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