CN113187646A - Small-size river power generation equipment - Google Patents
Small-size river power generation equipment Download PDFInfo
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- CN113187646A CN113187646A CN202110073698.XA CN202110073698A CN113187646A CN 113187646 A CN113187646 A CN 113187646A CN 202110073698 A CN202110073698 A CN 202110073698A CN 113187646 A CN113187646 A CN 113187646A
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- power generation
- baffle
- rotating shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/90—Braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
- F05B2270/101—Purpose of the control system to control rotational speed (n)
- F05B2270/1011—Purpose of the control system to control rotational speed (n) to prevent overspeed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses small river power generation equipment, which comprises a water blocking device and a power generation device, wherein the water blocking device comprises a transverse second rack, a second suspension rack and a water blocking mechanism; the power generation device comprises a first frame, a first suspension frame and a power generation module, wherein the power generation module comprises a bracket, a power generator and a power generation driving mechanism; the power generation driving mechanism comprises a power generation rotating wheel which is rotatably connected to the bracket through a rotating shaft; the power generation rotating wheel is connected with a main shaft of the generator through a first synchronous transmission mechanism; the speed limit of the power generation rotating wheel is realized by reversely beating the water surface through a reverse braking mechanism. The small river power generation equipment can self-adaptively adjust the rotating speed according to the flow or the flow velocity of the river, thereby ensuring that the small river power generation equipment works in a proper rotating speed range, and preventing the small river power generation equipment from damaging the small river power generation equipment and a power supply line or power supply equipment connected with the small river power generation equipment due to overhigh output voltage.
Description
Technical Field
The invention relates to power generation equipment, in particular to small river power generation equipment.
Background
The hydroelectric power generation belongs to renewable green clean energy without energy consumption, and does not generate carbon dioxide and the like to pollute the environment, so the hydroelectric power generation is advocated by the nation vigorously. The traditional hydroelectric power generation utilizes the fall of water to impact the blades of a water turbine to drive a generator to generate power and convert potential energy into electric energy. The technical characteristics of the device are closely related to water flow, water fall and the like. The larger the water flow is, the larger the water drop is, and the larger the amount of electricity generated. In the prior art and practice, in order to realize large water volume and large fall, a hydraulic dam is usually constructed to intercept water, a hydroelectric power generation facility is constructed on the basis, and a hydraulic turbine set is driven by high-potential water pressure and a water source through a closed pipeline to generate power.
However, when a dam is built, the potential energy difference can be utilized to generate electricity, but the dam building also brings about a plurality of social problems, in many water flow areas with gentle terrain, the potential energy difference is small, a dam cannot be built everywhere for utilizing water energy, therefore, how to utilize the water flow of a relatively flat region becomes an exploration target, and in the power generation process of the current river power generation device, often, the water flow is too fast due to some factors, which leads to the main shaft of the generator rotating too fast, thereby causing the output voltage of the generator to be overhigh, the overhigh output voltage easily causes damage to the generator and a power supply line (power supply equipment) connected with the generator, although the prior art can ensure that the generator works in a proper rotating speed range by changing the flow speed and the flow rate of water flow in rivers, the prior art is still far from sufficient and needs to be perfected and improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a small river power generation device, which can adaptively adjust the rotating speed of the small river power generation device according to the flow or the flow rate of a river so as to ensure that the small river power generation device works in a proper rotating speed range, thereby preventing the small river power generation device from damaging the small river power generation device and a power supply line or power supply equipment connected with the small river power generation device due to overhigh output voltage.
The technical scheme for solving the technical problems is as follows:
a small river power plant comprising a water barrier means disposed upstream of a river and a power generation means disposed downstream of the river, wherein,
the power generation device comprises a first machine frame crossing two banks of a river, a first suspension frame arranged below the first machine frame and a power generation module arranged on the first suspension frame,
the first suspension frame is rotatably connected to the first rack through a connecting plate;
the power generation module comprises a bracket arranged on the first suspension frame, a power generator arranged on the bracket and a power generation driving mechanism for driving a power generation rotating shaft in the power generator to rotate, wherein the bracket is arranged on the first suspension frame; the power generation driving mechanism comprises a power generation rotating wheel which is rotatably connected to the bracket through a rotating shaft; the power generation rotating wheel is connected with a main shaft of the generator through a first synchronous transmission mechanism;
the power generation module further comprises a reverse braking mechanism, the reverse braking mechanism comprises a rotating shaft arranged on the support and a plurality of braking pieces arranged on the rotating shaft, the rotating shaft is rotatably connected to the support, the rotating shaft is connected with the rotating shaft through a second synchronous transmission mechanism, and the second synchronous transmission mechanism is used for enabling the rotating direction of the rotating shaft to be opposite to the water flow direction; the braking parts are uniformly distributed along the circumferential direction of the rotating shaft; each braking part comprises a braking rod fixed on the rotating shaft and a braking sleeve arranged on the braking rod, wherein the braking sleeve is sleeved on the braking rod, and a braking head is arranged at the end part, far away from the rotating shaft, in the braking sleeve; one end of the brake rod is fixed on the rotating shaft, the other end of the brake rod is provided with a limiting part, a compression spring is arranged between the brake rod and the brake sleeve and is arranged on the brake rod, one end of the compression spring acts on the end part, close to the rotating shaft, in the brake sleeve, and the other end of the compression spring acts on the limiting part; the elastic force of the compression spring urges the brake head of the brake sleeve to be far away from the water surface;
the water blocking device comprises a second rack crossing in a river, a second suspension rack arranged on the second rack and a water blocking mechanism arranged on the second suspension rack, wherein the water blocking mechanism comprises a first baffle, a second baffle and a water blocking driving mechanism for driving the first baffle and the second baffle to move so as to control the flow speed difference of water flow in the upstream and downstream of the water blocking device.
Preferably, the two sets of reverse braking mechanisms are respectively arranged on two sides of the rotating shaft.
Preferably, the number of the braking parts is four, and the included angle between two adjacent braking parts is 90 degrees.
Preferably, the first synchronous transmission mechanism comprises a driving gear and a first driven gear, wherein the driving gear is mounted on the rotating shaft, and the first driven gear is mounted on a main shaft of the generator; the first driven gear and the driving gear are meshed with each other.
Preferably, the second synchronous transmission mechanism comprises a second driven gear arranged on the rotating shaft, and the second driven gear is meshed with the driving gear.
Preferably, the power generation runner comprises a runner body and a plurality of paddles arranged on the runner body, wherein the plurality of paddles are uniformly arranged on the runner body along the circumferential direction of the runner body.
Preferably, the first suspension frame is made of foam material, and the first suspension frame is composed of two suspension blocks, and the two suspension blocks are located on two sides of the power generation rotating wheel.
Preferably, the second suspension frame is mounted on the second rack through a vertical guide mechanism, and a water inlet is formed in the second suspension frame; the water retaining driving mechanism is used for driving the first baffle and the second baffle to move oppositely or reversely to open or close the water inlet and comprises a screw rod transmission mechanism and a rotary driving mechanism used for driving a screw rod in the screw rod transmission mechanism to rotate, wherein the screw rod transmission mechanisms are divided into two groups and are respectively arranged at the upper end and the lower end of the first baffle and the second baffle; each group of screw rod transmission mechanisms comprises a screw rod and a screw rod nut matched with the screw rod, wherein the screw rod is arranged on the second suspension frame; the screw rod nuts are divided into two groups, the spiral directions of the two groups of screw rod nuts are opposite, and the two groups of screw rod nuts are respectively arranged on the first baffle and the second baffle.
Preferably, the rotary driving mechanism comprises a rotating wheel and a belt transmission mechanism which are arranged on the second frame, wherein the rotating wheel is connected to the second frame through a rotating shaft; the belt transmission mechanisms are divided into two groups, wherein one group of belt transmission mechanisms is used for connecting the rotating shaft with a screw rod in one group of screw rod transmission mechanisms; the other group of belt transmission mechanisms is used for connecting the screw rods of the two groups of screw rod transmission mechanisms.
Preferably, the water blocking driving mechanism further comprises two groups of transverse guiding mechanisms which are arranged on the second suspension frame and used for guiding the movement of the first baffle and the second baffle, and the two groups of transverse guiding mechanisms are respectively positioned at the upper end and the lower end of the first baffle and the lower end of the second baffle; each group of transverse guide mechanisms comprises a sliding chute arranged on the second suspension frame and pulleys arranged on the first baffle and the second baffle, wherein the sliding chute extends along the length direction of the wire rod; pulleys in the first baffle and the second baffle are installed in the sliding groove.
Compared with the prior art, the invention has the following beneficial effects:
1. the small river power generation equipment is provided with the reverse braking mechanism, and when the river flow rate is overlarge, the reverse braking mechanism brakes and is used for limiting the rotating speed of the rotating shaft. Therefore, the rotating speed of the river can be adaptively adjusted according to the flow or the flow speed of the river, so that the river is ensured to work in a proper rotating speed range, and the phenomenon that the output voltage of the river is too high to damage the river and a power supply line or power supply equipment connected with the river is prevented.
2. The small river power generation equipment realizes the limitation of the rotating speed of the rotating shaft by reversely beating the water surface through the braking piece in the reverse braking mechanism, so that the rotating speed of the main shaft of the generator is limited, the output voltage of the generator is limited in a proper range, and the generator, and a power supply circuit and power supply equipment connected with the generator are protected.
3. The water blocking device in the small river power generation equipment can drive the first baffle and the second baffle to be opened or closed through the water blocking driving mechanism so as to control the opening and closing degrees of the first baffle and the second baffle, thereby controlling the flow speed difference of water flow in the upstream and the downstream of the water blocking device, and not only can provide enough driving force for the power generation rotating wheel to drive the power generation rotating wheel to rotate so as to drive the generator to generate power; and the purpose of limiting the rotating speed of the power generation rotating wheel is achieved, so that the power generation rotating wheel is prevented from rotating too fast, and the output voltage of the generator is ensured to be within a limited range.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of a small river power plant according to the present invention.
Fig. 2 and 3 are schematic perspective views of the power generation device from two different viewing angles.
Fig. 4 is a schematic perspective view of the power generation device (with the first frame removed).
Fig. 5 is a schematic structural view of the reverse braking mechanism.
Figure 6 is a schematic view of the detent.
Fig. 7-9 are schematic structural views of the water retaining device, wherein fig. 7 and 8 are schematic perspective structural views from two different viewing angles, and fig. 9 is a front view.
Fig. 10 is a perspective view of the rotation driving mechanism.
Fig. 11 is a schematic perspective view of a water stop device according to a second embodiment of the river power generation system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Example 1
Referring to fig. 1, the small river power plant of the present invention includes a water barrier a disposed upstream of a river and a power generation unit B disposed downstream of the river.
(1) Power generation device A
Referring to fig. 2 to 6, the power generation apparatus includes a first frame 1 spanning both banks of a river, a first suspension frame 2 disposed below the first frame 1, and a power generation module disposed on the first suspension frame 2.
Referring to fig. 2 to 6, the first suspension frame 2 is made of foam material, and the first suspension frame 2 is composed of two suspension blocks, and the two suspension blocks are positioned on two sides of the power generation runner 4; the first suspension frame 2 is rotatably connected to the first frame 1 through two connecting plates 3, wherein the two connecting plates 3 are respectively positioned on two sides of the power generation rotating wheel 4; the upper end of each connecting plate 3 is hinged with the first frame 1, and the lower end of each connecting plate is hinged with the first suspension frame 2; through the arrangement, when the water surface of the river rises, the first suspension frame 2 can rotate upwards around the first rack 1 along with the rising of the water surface, so that the power generation module on the first suspension frame 2 is prevented from being submerged by water flow, and the power generation module on the first suspension frame 2 can still work.
Referring to fig. 2 to 6, the power generation module includes a bracket disposed on the first suspension frame 2, a power generator 5 disposed on the bracket, and a power generation driving mechanism for driving a main shaft in the power generator 5 to rotate, wherein the bracket is mounted on the first suspension frame 2; the power generation driving mechanism comprises a power generation rotating wheel 4, the power generation rotating wheel 4 is rotatably connected to the support through a rotating shaft 6, the power generation rotating wheel 4 comprises a wheel body and a plurality of pulp plates 4-1 arranged on the wheel body, and the pulp plates 4-1 are uniformly arranged on the wheel body along the circumferential direction of the wheel body; the contact area of the paddle board 4-1 and the water flow can be increased, so that the power generation runner 4 obtains enough power to drive the generator 5 to rotate;
in addition, an avoidance groove 2-1 for avoiding the power generation rotating wheel 4 is arranged on the first suspension frame 2; the power generation rotating wheel 4 is connected with a main shaft of the power generator 5 through a first synchronous transmission mechanism; the first synchronous transmission mechanism comprises a driving gear 7 and a first driven gear 8, wherein the driving gear 7 is installed on the rotating shaft 6, and the first driven gear 8 is installed on a main shaft of the generator 5; the first driven gear 8 and the driving gear 7 are engaged with each other. When the generator works, the power generation rotating wheel 4 is driven to rotate through water flow, so that the main shaft of the generator 5 is driven to rotate through the first synchronous transmission mechanism, and the generator 5 generates power.
Referring to fig. 2 to 6, the power generation module further includes two sets of reverse braking mechanisms 10, where the two sets of reverse braking mechanisms 10 are respectively disposed on two sides of the rotating shaft 6; each set of reverse braking mechanism 10 comprises a rotating shaft 10-1 arranged on a support and four braking parts arranged on the rotating shaft 10-1, wherein the rotating shaft 10-1 is rotatably connected to the support, the rotating shaft 10-1 is connected with the rotating shaft 6 through a second synchronous transmission mechanism, the second synchronous transmission mechanism is used for enabling the rotating direction of the rotating shaft 10-1 to be opposite to the water flow direction, the second synchronous transmission mechanism comprises a second driven gear 9 arranged on the rotating shaft 10-1, and the second driven gear 9 is meshed with the driving gear 7; the four braking parts are uniformly distributed along the circumferential direction of the rotating shaft 10-1, and the included angle between every two adjacent braking parts is 90 degrees; each braking part comprises a braking rod 10-2 fixed on the rotating shaft 10-1 and a braking sleeve 10-3 arranged on the braking rod 10-2, wherein the braking sleeve 10-3 is sleeved on the braking rod 10-2, and a braking head 10-4 is arranged at the end of the braking sleeve 10-3 far away from the rotating shaft 10-1; one end of the brake rod 10-2 is fixed on the rotating shaft, the other end of the brake rod is provided with a limiting part 10-5, a compression spring 10-6 is arranged between the brake rod 10-2 and the brake sleeve 10-3, the compression spring 10-6 is arranged on the brake rod 10-2, one end of the compression spring 10-6 acts on the end part, close to the rotating shaft, in the brake sleeve 10-3, and the other end of the compression spring acts on the limiting part 10-5; the elastic force of the compression spring 10-6 urges the brake head 10-4 of the brake sleeve 10-3 away from the water surface.
With the above arrangement, when the flow velocity of the river water flow is too fast, the rotation speed of the power generating runner 4 and the rotation shaft 6 and the driving gear 7 connected to the power generating runner 4 is increased, so that the rotation speed of the second driven gear 9 and the rotation shaft 10-1 engaged with the driving gear 7 is increased, and thus the rotation speed of the braking member on the rotation shaft 10-1 is increased, so that the centrifugal force applied to the braking sleeve 10-3 on the braking member is increased, and thus the braking sleeve 10-3 moves outwards against the elastic force of the compression spring 10-5 and contacts with the water surface, because the rotation speed of the braking member is opposite to the flow direction of the water flow, the braking sleeve 10-3 flaps the water surface in a reverse direction, so as to provide a reverse braking force to the driving gear 7, so that the rotation speed of the driving gear 7 is limited within a proper range, and thus the variation of the rotation speed of the first driven gear 8 engaged with the driving gear 7 is not large, therefore, the output voltage of the generator 5 is not too high, and the generator 5, and the power supply circuit and the power supply equipment connected with the generator are protected. When the flow velocity of the river is reduced, the rotation speed of the power generating runner 4 is reduced, so that the centrifugal force to which the brake sleeve 10-3 in the brake member is subjected is reduced, and the brake sleeve 10-3 moves inward under the elastic force of the compression spring 10-6, so that the brake head 10-4 of the brake sleeve 10-3 is separated from the water surface, thereby stopping the braking.
(2) And a water retaining device B
Referring to fig. 1 to 10, the water blocking device comprises a second frame 11 crossing in a river, a second suspension 12 arranged on the second frame 11, and a water blocking mechanism arranged on the second suspension 12, wherein the second suspension 12 is mounted on the second frame 11 through a vertical guide mechanism 18, and the second suspension 12 is provided with a water inlet; the water retaining mechanism comprises a first baffle 13 and a second baffle 14 which are arranged on the second suspension bracket 12, and a water retaining driving mechanism for driving the first baffle 13 and the second baffle 14 to move oppositely or reversely to open or close the water inlet, wherein,
the water retaining driving mechanism comprises screw rod transmission mechanisms 15 and rotary driving mechanisms for driving screw rods in the screw rod transmission mechanisms 15 to rotate, wherein the screw rod transmission mechanisms 15 are divided into two groups and are respectively arranged at the upper ends and the lower ends of the first baffle 13 and the second baffle 14; each group of screw rod transmission mechanisms 15 comprises a screw rod and a screw rod nut matched with the screw rod, wherein the screw rod is arranged on the second suspension frame 12; the screw rod nuts are divided into two groups, the screw directions of the two groups of screw rod nuts are opposite, and the two groups of screw rod nuts are respectively arranged on the first baffle 13 and the second baffle 14;
the rotary driving mechanism comprises a rotating wheel 16 arranged on the second frame 11 and a belt transmission mechanism 17, wherein the rotating wheel 16 is connected to the second frame 11 through a rotating shaft; the belt transmission mechanisms 17 are divided into two groups, wherein one group of belt transmission mechanisms 17 is used for connecting the rotating shaft with a screw rod in one group of screw rod transmission mechanisms 15; the other group of belt transmission mechanisms 17 is used for connecting the screw rods of the two groups of screw rod transmission mechanisms 15;
the vertical guide mechanisms 18 in this embodiment are multiple groups, each group of vertical guide mechanisms 18 is composed of a slide rod and a slide hole arranged on the second rack 11, wherein the upper end of the slide rod penetrates through the slide hole and then is connected with the limiting plate. The vertical motion of the second suspension frame 12 can be guided by the vertical guide mechanism 18; wherein, a suspension block is arranged on the second suspension frame 12, and the suspension block is made of foam material. In this way, the second suspension bracket 12 floats upwards along with the rise of the water surface, and the power generation device rises along with the rise of the water surface, so that when the water level of the river surface rises, the power generation device and the water blocking device can still work, namely the water blocking device can still control the flow speed difference of water flow on the upstream and the downstream, thereby ensuring the normal power generation of the power generation device.
Through the arrangement, when the water speed needs to be controlled, the rotating wheel 16 is rotated, so that the two groups of belt transmission mechanisms 17 are driven to rotate, the screw rods in the two groups of screw rod transmission mechanisms 15 are driven to rotate, two groups of screw rod nuts arranged on the screw rods in each group of screw rod transmission mechanisms 15 are driven to move in the same direction or in the opposite direction, and the first baffle 13 and the second baffle 14 can be driven to move in the opposite direction or in the opposite direction, so that the water inlet is opened or closed; therefore, the flow speed difference of water flow in the upstream and the downstream of the water blocking device can be controlled by controlling the size of the water inlet, so that the power generation runner 4 can be driven to rotate by sufficient driving force to drive the power generator 5 to generate power; but also has the purpose of limiting the rotating speed of the power generation runner 4, thereby preventing the power generation runner 4 from rotating too fast and ensuring that the output voltage of the generator 5 is within a limited range.
Referring to fig. 1 to 10, the water blocking driving mechanism further includes two sets of transverse guiding mechanisms disposed on the second suspension frame 12 and used for guiding the movement of the first baffle 13 and the second baffle 14, where the two sets of transverse guiding mechanisms are respectively located at the upper end and the lower end of the first baffle 13 and the second baffle 14; each group of transverse guide mechanisms comprises a sliding groove arranged on the second suspension frame 12 and pulleys arranged on the first baffle plate 13 and the second baffle plate 14, wherein the sliding groove extends along the length direction of the wire rod; the pulleys of the first baffle 13 and the second baffle 14 are installed in the sliding grooves. Through setting up horizontal guiding mechanism can realize leading the motion of first baffle 13 and second baffle 14, makes things convenient for first baffle 13 and second baffle 14 to remove like this, makes the staff can open or close the water inlet more laborsavingly moreover.
Example 2
Referring to fig. 11, the present embodiment is different from embodiment 1 in that: the water blocking device comprises a second rack 11, a second suspension frame 12 and a water blocking mechanism arranged on the second suspension frame 12, wherein the water blocking mechanism comprises a first baffle 13, a second baffle 14 and a water blocking driving mechanism for driving the first baffle 13 and the second baffle 14 to rotate so as to realize water storage or water drainage, and the second rack 11 spans two sides of a river; the second suspension frame 12 is installed at two sides of a river and is located at the inner side of the river, and the first baffle 13 and the second baffle 14 are located at two sides of the river and are respectively connected to the second suspension frame 12 in a rotating manner; the first baffle 13 and the second baffle 14 can rotate in the vertical direction, so that water flow is blocked, water storage is realized, the flow speed difference of water flow between the upstream and the downstream of the power generation device is increased, and sufficient driving force is given to the power generation runner 4 in the power generation device so as to promote the power generation runner 4 to rotate rapidly, and power generation is realized.
Referring to fig. 11, the water blocking driving mechanism includes a driving shaft 21 disposed on the second frame 11 and a hand wheel 20 disposed on the driving shaft 21, wherein a winding wheel 19 and a steel wire rope disposed on the winding wheel 19 are mounted on the driving shaft 21, the winding wheel 19 and the steel wire rope disposed on the winding wheel 19 are in two groups, and are respectively located on two sides of the driving shaft 21 and respectively used for driving the first baffle 13 and the second baffle 14 to rotate, wherein the length direction of the driving shaft 21 is perpendicular to the water flow direction, and two sides of the driving shaft 21 are rotatably connected to the second frame 11; the hand wheel 20 is mounted on the driving shaft 21 and used for driving the rotating shaft to rotate; the steel wire rope on the winding wheel 19 is used for connecting the winding wheel 19 with the first baffle 13 or the second baffle 14; when the hand wheel 20 rotates to wind or release the steel wire rope, the steel wire rope drives the first baffle plate 13 and the second baffle plate 14 to rotate, so that the width of a river channel is controlled, the flow speed difference of water flow in the upstream and the downstream of the water blocking device is controlled, the rotating speed of the power generation rotating wheel 4 in the power generation device is controlled, and the phenomenon that the main shaft of the power generator 5 is damaged or a power supply device or a power supply circuit connected with the power generator 5 is damaged due to the fact that the rotating speed of the main shaft is too high can be avoided. Further, by controlling the flow velocity difference of the water flow in the upstream and downstream of the water stop device, it is also possible to give the power generating runner 4 a sufficient driving force to cause the generator 5 to be able to normally generate power.
The above description is a preferred embodiment of the present invention, but the present invention is not limited to the above description, and any other changes, modifications, substitutions, blocks and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and they are included in the scope of the present invention.
Claims (10)
1. A small river power plant comprising a water barrier means disposed upstream of a river and a power generation means disposed downstream of the river, wherein,
the power generation device comprises a first machine frame crossing two banks of a river, a first suspension frame arranged below the first machine frame and a power generation module arranged on the first suspension frame,
the first suspension frame is rotatably connected to the first rack through a connecting plate;
the power generation module comprises a bracket arranged on the first suspension frame, a power generator arranged on the bracket and a power generation driving mechanism for driving a power generation rotating shaft in the power generator to rotate, wherein the bracket is arranged on the first suspension frame; the power generation driving mechanism comprises a power generation rotating wheel which is rotatably connected to the bracket through a rotating shaft; the power generation rotating wheel is connected with a main shaft of the generator through a first synchronous transmission mechanism;
the power generation module further comprises a reverse braking mechanism, the reverse braking mechanism comprises a rotating shaft arranged on the support and a plurality of braking pieces arranged on the rotating shaft, the rotating shaft is rotatably connected to the support, the rotating shaft is connected with the rotating shaft through a second synchronous transmission mechanism, and the second synchronous transmission mechanism is used for enabling the rotating direction of the rotating shaft to be opposite to the water flow direction; the braking parts are uniformly distributed along the circumferential direction of the rotating shaft; each braking part comprises a braking rod fixed on the rotating shaft and a braking sleeve arranged on the braking rod, wherein the braking sleeve is sleeved on the braking rod, and a braking head is arranged at the end part, far away from the rotating shaft, in the braking sleeve; one end of the brake rod is fixed on the rotating shaft, the other end of the brake rod is provided with a limiting part, a compression spring is arranged between the brake rod and the brake sleeve and is arranged on the brake rod, one end of the compression spring acts on the end part, close to the rotating shaft, in the brake sleeve, and the other end of the compression spring acts on the limiting part; the elastic force of the compression spring urges the brake head of the brake sleeve to be far away from the water surface;
the water blocking device comprises a second rack crossing in a river, a second suspension rack arranged on the second rack and a water blocking mechanism arranged on the second suspension rack, wherein the water blocking mechanism comprises a first baffle, a second baffle and a water blocking driving mechanism for driving the first baffle and the second baffle to move so as to control the flow speed difference of water flow in the upstream and downstream of the water blocking device.
2. The small river power plant according to claim 1, wherein the reverse braking mechanisms are provided in two sets, respectively, on both sides of the rotation shaft.
3. A small river power plant according to claim 1 wherein the number of said braking members is four and the angle between two adjacent braking members is 90 degrees.
4. The small river power plant according to claim 1, wherein the first synchronous drive mechanism includes a driving gear and a first driven gear, wherein the driving gear is mounted on the rotating shaft, and the first driven gear is mounted on a main shaft of the generator; the first driven gear and the driving gear are meshed with each other.
5. The small river power plant according to claim 4, wherein the second synchronous transmission mechanism includes a second driven gear provided on the rotation shaft, the second driven gear being engaged with the driving gear.
6. The small river power plant according to claim 1, wherein the power generation runner includes a runner body and a plurality of paddles provided on the runner body, wherein the plurality of paddles are arranged on the runner body uniformly along a circumferential direction of the runner body.
7. The small river power plant of claim 1 wherein the first suspension frame is made of foam and is comprised of two suspension blocks on either side of the power runner.
8. The small river power plant according to claim 1, wherein the second suspension frame is mounted on the second frame through a vertical guide mechanism, and a water inlet is formed on the second suspension frame; the water retaining driving mechanism is used for driving the first baffle and the second baffle to move oppositely or reversely to open or close the water inlet and comprises a screw rod transmission mechanism and a rotary driving mechanism used for driving a screw rod in the screw rod transmission mechanism to rotate, wherein the screw rod transmission mechanisms are divided into two groups and are respectively arranged at the upper end and the lower end of the first baffle and the second baffle; each group of screw rod transmission mechanisms comprises a screw rod and a screw rod nut matched with the screw rod, wherein the screw rod is arranged on the second suspension frame; the screw rod nuts are divided into two groups, the spiral directions of the two groups of screw rod nuts are opposite, and the two groups of screw rod nuts are respectively arranged on the first baffle and the second baffle.
9. The small river power plant according to claim 8, wherein the rotation driving mechanism includes a runner provided on the second frame, and a belt transmission mechanism, wherein the runner is connected to the second frame through a rotation shaft; the belt transmission mechanisms are divided into two groups, wherein one group of belt transmission mechanisms is used for connecting the rotating shaft with a screw rod in one group of screw rod transmission mechanisms; the other group of belt transmission mechanisms is used for connecting the screw rods of the two groups of screw rod transmission mechanisms.
10. The small river power plant according to claim 9, wherein the water blocking driving mechanism further comprises two sets of lateral guide mechanisms provided on the second suspension frame for guiding the movement of the first and second baffles, the lateral guide mechanisms being respectively located at upper and lower ends of the first and second baffles; each group of transverse guide mechanisms comprises a sliding chute arranged on the second suspension frame and pulleys arranged on the first baffle and the second baffle, wherein the sliding chute extends along the length direction of the wire rod; pulleys in the first baffle and the second baffle are installed in the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073698.XA CN113187646A (en) | 2021-01-20 | 2021-01-20 | Small-size river power generation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073698.XA CN113187646A (en) | 2021-01-20 | 2021-01-20 | Small-size river power generation equipment |
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| CN113187646A true CN113187646A (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110073698.XA Withdrawn CN113187646A (en) | 2021-01-20 | 2021-01-20 | Small-size river power generation equipment |
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| CN117231408A (en) * | 2023-11-16 | 2023-12-15 | 安徽丰洲建设科技有限公司 | Water conservancy turbine unit power generation facility |
| CN117231410A (en) * | 2023-11-10 | 2023-12-15 | 广东工业大学 | River power generation device |
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