JPS631463B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device that uses natural water flow to generate electricity without carrying out full-scale water conveyance work, and is for example a device for development and research carried out by staying in a specific area for a certain period of time. This is a device suitable for actual use.

Traditionally, Pelton turbines, Francis turbines, etc. are used as power generation turbines depending on the head of the water flow and the amount of water to be used, but these turbines require large-scale ancillary construction in order to fully demonstrate their functions. It is disadvantageous for anything other than a permanent facility because it requires Here, in order to most effectively convert the potential energy of the water flow, which has a limited natural water volume and velocity, into rotational force of the water wheel without installing a pressurized waterway, etc., it is necessary to increase the water flow receiving surface of the water wheel. For this purpose, whereas in conventional water turbines the water flow acts as one tangent to a circle, as shown in Figure 5, the water flow acts as one line.
Formed with two endless bands to create a straight line along the water flow,
In this part, a large number of vanes can be simultaneously pushed by the water flow. In this case, A
When using a falling water stream, as in the case of the above method, a large number of receiving rollers are required because the feeding side of the endless belt is compressed by the water stream. Further, when a horizontal water stream is used as shown in Figure B, the lower belt is pulled by the water stream and kept in a tensioned state, but the upper belt sag downward, so a receiving roller is required. However, unlike a conveyor belt or the like, the endless belt itself moves at a considerably high speed, so the receiving roller rotates at a very high speed, which causes a lot of friction loss and is disadvantageous in terms of maintenance.

For example, as in Utility Model Publication No. 9-10477, plates 7 and 8 forming an endless chain are connected by a hinge, and plate 7
Both ends of the plates 7 and 8 are overlapped at intervals, and the plates 7 and 8 constitute the endless band 1, and the adjacent plates 7 and 8 are arranged in the inner direction of the endless band 1. to
It was designed to open more than 180 degrees. for that,
Since adjacent plates are bent by more than 180 degrees inward of the endless band made up of these plates, a large number of rollers are required, resulting in large resistance, which has been a drawback.

In addition, another conventional example, for example, Jikko Sho 9-
Publication No. 10447, Japanese Unexamined Patent Application Publication No. 1983-21044, Publication No. 1888
In these methods, as described in Publication No. 5708 and Publication No. 12000 of 1983, the pressure of the water flow is uniformly applied to the belt conveyor, and the water vehicle is applied to the rotary wheel connected to the generator. Since almost all of the pressure was not applied, the power to rotate the generator was not used efficiently. Also,
The buckets were also unable to receive enough water flow, resulting in large losses of water flow. The present invention aims to eliminate the above-mentioned drawbacks.

In consideration of the above points, the present invention has a water turbine with an endless band having a straight section, a large number of buckets attached as blades, and a special structure that eliminates the need for rollers to receive the endless band. It is.

Embodiments of the apparatus of the present invention will be described with reference to the drawings. In Figs. 1 to 3 and Fig. 6, 1 is an endless band forming the main body of the water wheel, and a conventionally well-known apron chain is used. Like an endless band, the rectangular plate 2 forms the bottom plate of the bucket bag 6. A pair of parallel chains 3, 3 are fixed to the lower surface of the horizontally long rectangular plate 2 by inserting them slightly inward from both the left and right edges. A cylindrical member 5 having a width equal to that of the lid member 4 and having a lower height extends from the mouth edge of the lid member 4 to the rear edge of the rectangular plate body 2. A unit member 7 which is integrally connected to the lid member 4 and has a bucket 6 consisting of a rectangular plate body 2, a vamp-shaped lid member 4, and a cylindrical member 5, and a set of chain units 3, 3. A large number of chains 3, 3... on the lower surface of the rectangular plate 2 of the unit member 7 are connected by shafts 8, 8... to form an integral articulated body, and the endless band 1
Configure. The opening edge of the lid member 4 and the front edge of the cylindrical member 5, and the rear edge of the cylindrical member and the rectangular plate body 2, are connected to the opening 20 of the lid member and the opening 21 of the cylindrical member 5, respectively.
is formed. And the unit members 7, 7,...
and the adjacent unit members 7, 7, . and,
The front and rear edges of the rectangular plates 2... of the unit members 7... are in contact with the edges of the adjacent rectangular plates 2, respectively, and the chains 3 on the lower surfaces of the rectangular plates 2,... , 3... is the adjacent chain 3
and are connected by shafts 8, respectively. Due to this butt, the unit members 7 move toward the inside of the endless band 1 composed of the unit members 7,...
It is designed not to open more than 180 degrees. This makes it possible to reduce the deflection of the upper endless belt in front of the pulleys 11, 12, which is the cause of the maximum resistance of the conveyor, thereby reducing the resistance. Further, engaging plates 9, 9 are attached perpendicularly to the center of the lower side edge of the rectangular plate body 2 and the outer edges of the chains 3, 3, with their end surfaces fixed.

This endless belt 1 is stretched across pulleys 11 and 12 at both ends rotatably provided at both ends of an assembly frame 10, and rotates an output shaft 14 of a rotor 13, which is also provided in the middle and pivotally supported on the frame. I'm starting to do that. As shown in FIG. 2, the structure of the rotor 13 is such that a rotating ring 15 and an output shaft 14 are formed concentrically, and the circumferential surface of the rotating ring 15 is brought into contact with the bottom surface of the chain unit 3. Engagement pawls 17 are provided on the rotor 13 in a radial manner, and rollers 16 are provided on the tips of the engagement pawls 17. The rollers 16 engage with the engagement plate 9 located at the center of the lower side edge of the rectangular plate 2 of the unit member 7, so that the rollers 16 sequentially engage with the engagement plates 9. The rotor 13 rotates by pushing the The reason why the rollers 16 are provided is that the rollers 16, 16 of a pair of correspondingly positioned engaging claws 17, 17 are connected to the engaging plates 9, 9 of the unit members 7, 7 on the feeding side and returning side of the endless band 1. This is to reduce frictional resistance and wear when being pushed through. Output shaft 14 which is the central axis of this rotor 13
is connected via a speed increaser to a generator mounted on a generator stand (not shown) installed along the assembly frame 10 to generate the required power. In addition, when this rotor 13 is used for a falling water flow, the upper endless band descends due to the amount of loaded water,
It may be the case that its bottom comes into contact with the roller 16 and then the roller 16 moves to lift the upper endless strip. In this case, the force that lifts the upper endless band turns into a large resistance, so in order to eliminate this contact, the vertical plate-shaped receiving pieces 18 on the lower surface of the unit members of the endless band 1 come into contact with the roller 16 coaxial with the rotor 13. This prevents the roller 16 from coming into contact with endless bands other than the engagement plate 9. Since the coefficient of sliding friction is much larger than that of rolling friction, all parts that can be converted into rolling friction are turned into rolling friction, and in order to reduce resistance and generate electric power, the above-mentioned rotor 13 and both ends of the assembly frame 10 are Efforts are made to reduce frictional resistance as much as possible by using ball bearings or the like for all the shaft supports of the pulleys 11, 12, the rollers 16 of the rotor 13, etc. Note that 18, 18, . . . shown in FIG. 3 are receiving pieces arranged in vertical rows on the back surface of the rectangular plate body 2. The receiving pieces 18, 18...
It is brought into contact with the pulleys 11 and 12 and the rotating wheel 15. Since the unit members 7, 7... are hardly in contact with the pulleys 11, 12 and the rotating ring 15, the resistance due to sliding friction between the unit members 7, 7..., the pulleys 11, 12, and the rotating ring 15 is reduced. Few.

Since this invention has the above configuration, this is the fourth
As shown in Figure A, when using the falling water flow, the assembled pedestal 10 is connected to a pedestal previously installed on the ground, the endless strip 1 is erected at a required inclination, and the water conduit 19 is placed above.
position. As a result, the water that ejects and falls from the water pipe 19 is sprayed over almost the entire surface of the feeding side of the endless belt 1, and each bucket 6 receives this water pressure at the bottom of the bucket. water enters the bucket from both the mouth 21 of the cylindrical member 5 and the mouth 20 of the lid member 4, and in this case, water that hits the outer surface of the cylindrical member 5 during the transition of the bucket 6 also flows into the lid member 4. Since it enters the bucket from the mouth 20, in order to receive the amount of water that hits the endless belt 1 over a wide surface without waste, it is obtained as conversion energy of potential energy, which is the multiplicative product of the pressure of the water flow due to the head, the water, and the weight. This converted energy increases the rotational force.

Further, the water flowing into the bucket 6 flows out from the opening 20 of the lid member 4 as the bucket 6 moves, and gradually fills the lower bucket 6. However, the water in the bucket 6 that has reached the lowest position Since it is discharged all at once from both openings 20 and 21 of the lid member 4 and the cylindrical member 5, there is no risk of unnecessary gravitational resistance occurring when moving to the return side.

Next, FIG. 4B shows the case where the apparatus of the present invention is used for horizontal flow. In this case, the flow rate is not very fast, but the amount of water is usually larger than the falling flow, so each bucket 6 receives sufficient water pressure, and the combined force can generate a large rotational force. . In addition, when this horizontal flow is used for tidal power instead of a river, etc., this invention device almost eliminates the deflection of the upper endless band with a small number of rollers, resulting in a large reduction in drag. Even if another hydroelectric power generation device were installed in the same way as this and could generate electricity, there would be a significant difference in resistance and more power could be obtained. in this case,
Each endless band rotates only in a predetermined direction due to the resistance of a speed increaser with a generator interposed therein.

As described above, the present invention is capable of generating power immediately by fixing the assembly frame 10 on the ground as appropriate after disassembling and transporting the assembly frame 10. As mentioned above, the feeding side of the endless belt 1 , since it does not bend more than 180 degrees towards the inside of the endless band 1,
As shown in Figure 4A, the falling water flow is received in a straight line without the need for a receiving roller, and even when used for horizontal flow as shown in Figure 4B, the return side of the endless band 1 does not droop. Therefore, there is no risk of giving unnecessary resistance to the rotor 13, and there is always a large number of buckets 6.
It is possible to generate powerful electricity by fully utilizing the combined power of... Furthermore, the rotor 13, which is an output pulley, is provided in the middle of the endless band 1, and is configured to be rotated by the endless band 1 via the rollers 16. The front and rear edges of the rectangular plates 2 of each unit member 7 can be prevented from being worn against the force, and the whole device can be stably installed together with the generator at approximately the center of the entire device.

Furthermore, in the power generation device according to the present invention, the entire endless band 1 is received by the roller 16 of the rotor 13,
Most of the total weight of the endless belt 1 and the total weight of the flowing water are applied to the roller 16, and the unit members of the endless belt 1 rotating at the pulleys 11 and 12 are placed at the pulleys 11 and 12. 7, 7... is applied, and the sliding friction between the pulleys 11 and 12 and the unit members 7, 7... of the endless band 1 is reduced. Roller 1 as mentioned above
Since most of the total weight of the endless belt 1 is applied to the rotor 13 which has 6 at the tip, both pulleys 11, 1
Friction loss at 2 is reduced, and most of the force of the weight of the falling water is applied to the rotor 13, causing the rotor 13 to rotate with a large amount of power, so that electric power can be obtained efficiently.

[Brief explanation of the drawing]

1 to 4 show embodiments of this invention,
Fig. 1 is a side view in an upright state, Fig. 2 is a side view of the rotor portion, Fig. 3 is a front sectional view of the unit member, Fig. 4 A and B are explanatory side views showing the state of use,
5A and 5B are side views for explaining the principle of the invention, and FIG. 6 is a perspective view of the bucket bag. DESCRIPTION OF SYMBOLS 1... Endless band, 2... Rectangular plate, 3... Single chain, 4... Lid member, 5... Cylindrical member, 6...
...Bucket, 7...Unit member, 8...Shaft, 9...
Engagement plate, 10... assembly frame, 11, 12... pulley, 13... rotor, 14... output shaft, 15...
...Rotating wheel, 16...Roller, 17...Engagement claw, 1
8...Socket piece, 19...Water pipe, 20...Opening part of lid member, 21... Opening part of cylindrical member.

Claims (1)

[Claims] 1. A pair of single chains are fixed to the lower surface of the rectangular plate in parallel on the left and right sides, and on the upper surface of this rectangular plate, in contact with the front edge, there is a thumb-skin-like lid member, and a lid member is attached to the mouth edge of this lid member. A cylindrical member with the same width and lower height as the lid member is connected and installed in series,
The rectangular plate, the lid member, and the cylindrical member form a bucket, the bucket and a set of chains constitute a unit member, and the mouth edge of the lid member and the front edge of the cylindrical member form the lid member. By forming a mouth of the cylindrical member, forming the mouth of the cylindrical member with the rear edge of the cylindrical member and the rectangular plate, and connecting a set of single chains,
Each unit member is connected, and each unit member is connected endlessly to constitute a conveyor, and the rectangular plate of the unit member is in contact with the adjacent rectangular plate, and the mutual rotation of the adjacent rectangular plates is performed. The moving angle is toward the inside of the conveyor.
In such a way that the conveyor is not opened more than 180 degrees, this conveyor is used as the main water wheel, and the conveyor is stretched across pulleys at both ends provided on the assembly frame, and a plurality of rollers are installed radially around the periphery, located between the pulleys at both ends. A rotor having a plurality of locking pawls is pivotally supported on the assembly frame, a roller is provided at the tip of the locking pawl, and the roller of the locking pawl is connected to the lower surface of the rectangular plate of the bucket of the unit member. The rotor is engaged with an engagement plate extending between the center of the side edge and the outer edge of the single chain and protruding perpendicularly to the outer edge of the single chain, and the central axis of the rotor is connected to a generator. Hydroelectric power generation equipment.