System and method of mounting hydroelectric turbine
FIELD: machine building.
SUBSTANCE: proposed system comprises foundation 12, hydroelectric turbine 10 to rest on said foundation 12, and afloat sea ship 14 that allows detachment of said foundation. Ship 1 allows detachment of foundation 12 and its lowering, and/or lifting to position right under the ship, and its attachment to ship. Foundation 12 comprises support 32 to pass upward through ship 14 when foundation 14 is attached to ship from below. Ship 14 has opening 30 for foundation 32 to pass through when foundation 12 is mounted under ship 14 to allow turbine 10 mounted on support 32 to pass there through.
EFFECT: simplified mounting.
13 cl, 7 dwg
The technical FIELD TO WHICH the INVENTION RELATES.
This invention relates to a system and method of placement of hydroelectric turbines and, in particular, to a system and method by which greatly simplifies the transportation of this hydroelectric turbines and associated grounds to placement, and subsequent placement of this turbine and Foundation on the seabed.
The LEVEL of TECHNOLOGY
Due to the fact that the combustion of fossil fuels causes significant damage to the environment, in recent years much attention is paid to the development of renewable energy sources. However, many of these projects based on the use of solar, wind or tides. Among these alternative forms of energy the greatest interest in tidal energy, because the tides are completely predictable and constant, while the energy of the sun and wind is relatively fragile and, consequently, less reliable sources.
However, the use of tidal creates its own problems, in particular problems relating to the installation and maintenance of generators for tidal power plants, such as hydroelectric turbines, the principle of which is that they should be located in a relatively rapid Photocopying, and, on the seabed. In addition, it is economically profitable to such turbines were of great size. All this leads to the fact that the turbines and their foundations/supports are large and bulky components and their installation requires a fairly massive lifting and transport equipment. In such cases, the use of equipment of high capacity usually associated with certain risks, and its application to the sea, in a complex and uncertain environment, it is considered even dangerous.
The process of this installation is further complicated because of the increasing deficit on the market suitable vessels and equipment to perform drilling, as well as the extreme danger to divers working in the areas of maximum tidal current.
Thus, the present invention is to simplify the process of hosting hydroelectric turbines and solved through the development of a system and method for the placement of hydroelectric turbines, pre-installed on the base.
In accordance with the first aspect of the present invention, a system for placing a hydroelectric turbine, containing a base, a hydroelectric turbine, made with the possibility of relying on pointed to by the s basis, and a ship that provides, when the vessel is afloat, keeping with removable, underneath the specified base, and the ship provides the ability to detach from the vessel grounds for lowering the base and/or base-lift to position the bottom of the vessel and its connection with the vessel, and the base comprises a support, which passes upward through the vessel when the base is connected with the vessel bottom vessel, characterized in that the vessel has an aperture through which a support when the base is installed from the bottom of the vessel, made with the possibility of passage through it is installed on the support of the turbine.
Preferably, the vessel contains a load-lifters, is constructed with possibility of lifting and/or lowering of the base with respect to the vessel.
Preferably, the lifting means include at least one winch.
Preferably, the vessel comprises at least a pair of interconnected buildings of the vessel.
Preferably, this system provides the possibility of attaching to the base of the ballast when the substrate is fixed from the bottom of the vessel.
Preferably, the vessel is modular.
In accordance with the second aspect of the present invention proposes a method of placing a hydroelectric turbine comprising sledujusjaja:
securing the base to the turbine from the bottom of the vessel;
mount the turbine to the support base, which passes upward through the vessel;
the transport vessel to the location.
detach the base from the specified vessel, carried out from the bottom of the vessel;
characterized in that the step of detaching the base from the vessel turbine is passed through a vessel.
Preferably, this method is at the stage of fixing the Foundation includes the following steps:
the location of the base at the bottom of the reservoir,
the location of the vessel above the base, and
the rise Foundation in position beneath the boat.
Preferably, according to this method, before the location of the base in the bottom of the reservoir to the base secure the at least one lifting rope.
Preferably, according to this method, the phase of the high grounds in the bottom position of the vessel using the lifting means, contained in the vessel.
Preferably, according to this method, after fixing the base (12) under the vessel (14) based on (12) place the ballast.
Preferably, according to this method, after fixing the base (12) from the bottom of the vessel (14) to the specified base (12) attach the support (32).
Preferably, according to this method, prior to placement of the base (12) on the designated placement location, test different slave the other parameters of the base (12) and/or the turbine (10) in place for testing.
BRIEF DESCRIPTION of DRAWINGS
Figure 1 shows the basis for the turbine, located at the pier;
figure 2 shows the base shown in figure 1, placed on the seabed near the pier;
figure 3 shows a vessel used to accommodate the turbine, which is afloat above the base and near the pier;
figure 4 shows the vessel shown in figure 3, after lifting the base in position directly beneath the boat;
figure 5 shows the vessel and the base, shown in figure 4, and attached to the base pair of feet passing through the vessel;
figure 6 shows the vessel and the base are shown in figure 5, after joining the supports hydroelectric turbine; and
7 shows a vessel located at the location of the turbine, engaged in sinking the foundations and turbines on the seabed.
DETAILED DESCRIPTION of embodiments of the INVENTION
In the drawings shows a system and method of placement of hydroelectric turbine 10 (turbine only shown in Fig.6 and 7), and this system provides for the use of the base 12 to the turbine 10 and the vessel 14, to which may be attached to the base 12, as described in detail below. As can be seen from the following description, the application of the proposed system and method largely avoids the need to use equipment which Finance a large capacity when placing hydroelectric turbine 10 and accordingly, greatly simplifies the process of placing turbines.
In the illustrated embodiment, the base 12 includes a triangular frame 16 with three legs 18, although the subsequent description of the proposed system and method, it is clear that this form of base 12 corresponds to an approximate variant of the implementation and the base may have any other shape and/or configuration. In order to begin placing turbines, the base 12 is placed on the berth Q along the water W, such as the sea. The base 12 may be delivered to the berth Q fully assembled, or preferably may be assembled on the pier Q from its constituent components.
As shown in figure 2, the base 12 is lifted berth Q and lowered to the seabed B near the pier Q. At this point, the frame 12 is relatively light and can be moved from berth Q, using a relatively small crane (not shown) or similar equipment. To each corner of the base 12, preferably before dropping the base 12 on the seabed B, attach hoisting cable 20 is connected to it by buoy 22. The number of hoisting ropes 20 may vary depending on the size and shape of the base 12, or based on any other operational requirements.
As shown in figure 3, the vessel 14 is moved in the floor is laid directly over the base 12 near the pier Q. The vessel 14 is provided with lifting means in the form of three winches 24, each of which may be attached to one of the hoisting ropes 20. Thus, the winch 24 can be used for lifting the base 12 in the position from the bottom of the vessel 14, as shown in figure 4. Obviously, you may use any other equivalent winches 24 tool, and if necessary the number of winches 24 and their location can be changed. The vessel 14 and/or the base 12 may be equipped with fastening means (not shown)intended for attaching the base 12 to the bottom of vessel 14 after moving his winch to the specified position. In this case, after fixing the base 12 in a predetermined position, the cargo will be removed from the winch 24. However, as such fastening means can be themselves winch 24.
You can see that in the illustrated embodiment, the vessel 14 is composed of two buildings in the form of pontoons 26, which are connected to each other by a pair of transverse elements 28. The gap between the transverse elements 28 is blank and defines the boundaries of the opening 30 in the vessel 14. Accordingly, access to the base 12 can be carried out through the opening 30 from the top of the vessel 14. Referring now to figure 5, it can be seen that the base 12 attached to two supports 32, which can be performed with the vessel 14. It is assumed that using the method in this paper, the term "support" refers to any system or device suitable for ensuring the connection of the turbine 10 with a base 12. Thus, mean by the term means does not necessarily represent the vertical element, such racks, illustrating a pair of supports 32.
Because now the base 12 securely mounted under the vessel 14, if necessary, to the base 12, you can add ballast to increase the weight of the base 12 to a level that will allow the safe landing of the base 12 and the turbine 10 on the seabed under the action of their own weight. As this ballast only add at this stage, when lifting the base 12 to a predetermined position beneath the boat 14 is no extra load on the winch 24. Also, due to the fact that adding ballast is at this stage, when lifting the base from the terminal Q and its lowering to the sea floor, you can use a relatively small crane, because they do not have to be lifted by crane additional mass associated with the availability of ballast.
Figure 6 shows the turbine 10 raised to the base 12 and, in particular, on the supports 32, also using a relatively small crane, located on the pier Q. Turbine 10 is then affixed to the supports 32 and, thus, it is ready for transportation to the location in the sea.
Obviously, as technology development turb the us will grow in size and, accordingly, the same thing will happen with the distance between the hulls or pontoons 26 of the vessel. However, in this case, the winch 24, which is located in the middle of the front cross member 28, will be under considerable strain, with no support. Therefore, it is envisaged that the construction of the vessel 14 for larger turbines (or possibly with the installation of two or more turbines 10 next to one basis 12) will take a form different from the design of the catamaran, for example the shape of a trimaran. The modular design of the vessel 14 enables a simple implementation of such modification.
In addition, the modular design of the vessel 14 makes it easy to dismantle and transport to any place of the globe to place subsequent installation in the case of a large cargo ship. This solution can help save time, as large cargo ships can travel long distances in much worse conditions than the specified vessel 14. The modular design also means that the vessel 14 can be rebuilt in the future under the base 12, having a different shape, i.e. when placing large turbines may require the extension of the distance between housings 26, which can easily be done by lengthening of the transverse elements 28. Obviously, this circumstance will provide e is anomia in costs because it will not be necessary in the construction of a completely new ship.
Another advantage due to the shape of the vessel 14, is the ease of towing due to the presence of very small resistance, because the transverse elements 28 are located outside of the water and, consequently, in the water are only the pontoons 26. This design will be aligned with the tidal currents in comparison with other construction in which the transverse elements are immersed in water. Latest design will be less streamlined and less likely that it will be on the same line with the specified period. This feature is important when placing the turbine 10, when the tide occurs during the lowering of the turbine 10, with the vessel 14 will be oriented correctly relative to the tide and, accordingly, will automatically provide the proper orientation of the turbine 10.
Modular solution the design of the vessel 14 also allows quick and simple mounting on the vessel 14 additional equipment used during installation. By conventional modular connectors (not shown) to the vessel 14 can be easily attached to the platform (not shown), supporting such equipment.
As shown in Fig.7, after the location of the vessel 14, the base 12 and the turbine 10 above the placement basis is the W 12 and the turbine 10 can be lowered to a predetermined position. This is done by a simple etching of the rope with the winch 24, allowing the base 12 is lowered under the vessel 14. If the base 12 and/or the vessel 14 have any fastening means (not shown), before etching, they must be disconnected. The shape and size of the opening 30 in the vessel 14 provide for the possibility of passage of the turbine 10 down through the opening 30 and thus United the turbine 10 and the base 12 may be omitted together with the vessel 14. Thus, when the substrate 12 is located on the seabed B, will not be required to carry out additional work for their fastening, respectively, the hosting process is greatly simplified. In addition, you will not need to use such lifting equipment such as cranes or similar means to control from the vessel 14.
Specified the connection base 12 and vessel 14 also allows to carry out the above process in reverse order to ensure the rise of the base 12 and the turbine 10 from the seabed B. Vessel 14 is situated above the base 12 and connect with him. Then the base can be using the winch moved into position from the bottom of the vessel 12 and are secured under it for transport back to shore or to another desired destination.
Before transporting the turbine 10 to the host, it is preferable to conduct R is lichnye testing of the turbine 10 and the base 12 at a time when they are located near the pier Q. Thus, as shown in Fig.6 after attaching the turbine 10 to the base 12, the base 12 and the turbine 10 is lowered to the seabed B, while the vessel remains located near the pier Q. During layout of the base 12 on the seabed B lifting ropes 20 remain fixed between the base 12 and vessel 14 to provide a quick and easy return to the base position under the vessel 14 for transport to the location shown in Fig.7. When the substrate 12 is located on the seabed B, it is possible to conduct various tests such as the test/calibration telemetry sensors (not shown), or the like, located on the base 12 and/or the turbine 10. After completion of the specified tests of the base 12 return using the winch back into position from the bottom of the vessel 14, and a turbine 10 and then again come above the deck of the vessel 14. Then the vessel 14 can be delivered to that location, as described above with reference to Fig.7. If during these tests will identify any problems associated with the turbine 10 or base 12, then both can be quickly removed from the water W due to the fact that they are located close to the pier Q. in Addition, if the problem relates only to the turbine 10, then the turbine 10 can be easily detached from the base 12 and raised the ü on the berth for additional testing and/or repair. While the base 12 may be attached under the vessel 14 as long as it will not be returned repaired turbine 10.
Provided that the proposed system can be used to place the base 12 on the seabed B without an attached turbine 10, which is then suitable means attached to the base 12.
Thus, it is obvious that the proposed system and method allow for a simplified and highly effective placement of hydroelectric turbine 10, and also to minimize the hardware requirements of high capacity, eliminating the need to use such equipment on Board the vessel 14, in particular on the location.
1. System for placing a hydroelectric turbine that contains the base (12), a hydroelectric turbine (10), made with the possibility of relying on a specified basis (12), and marine vessel (14), which provides, when the vessel is afloat, keeping with removable underneath the specified radix (12), and vessel (14) provides the ability to detach from the vessel base (12) and its lowering and/or lifting of the base (12) to the bottom of the vessel (14) and its connection with the vessel, and a base (12) contains support (32), which passes upward through the vessel (14)when the base (12) compounds is about with the vessel (14) from the bottom of the vessel, characterized in that the vessel (14) has an aperture (30), which passes through a bearing (32)when the base (12) is installed below the vessel (14), made with the possibility of passage through it is installed on the support of the turbine (10).
2. The system according to claim 1, in which the vessel (14) includes lifting means (24)made with the capability of raising and/or lowering of the base (12) relative to the vessel (14).
3. The system according to claim 2, in which the lifting means (24) contain at least one winch (24).
4. The system according to claim 1, in which the vessel (14) includes at least a pair of interconnected housings (26) of the vessel.
5. The system according to claim 1, providing for the attachment to the base (12) of the ballast when the base (12) is fixed to the bottom of the vessel (14).
6. The system according to claim 1, in which the vessel (14) is modular.
7. The method of placing a hydroelectric turbine (10), comprising the following steps: attaching the base (12) to the turbine (10) from the bottom of the vessel (14); the fixing of the turbine (10) to the support (32)provided on the base (12), passing upward through the vessel (14); transportation of the specified ship to the location of the turbine; detaching the base from the specified vessel, carried out from the bottom of the vessel; characterized in that at this stage of detaching the base from the vessel turbine is passed through a vessel.
8. The method according to claim 7, in which the step of fixing the core is of (12) includes the following steps: location of the base (12) on the bottom of the reservoir, the location of the vessel (14) above the base (12) and lift the base (12) in position under the vessel (14).
9. The method according to claim 8, in which the location of the base (12) on the bottom of the reservoir to the base (12) securing at least one lifting rope (20).
10. The method according to claim 8, in which the lifting stage base (12) to the bottom of the vessel (14) use of hoisting means (24)contained in the vessel (14).
11. The method according to claim 7, in which after fixing the base (12) from the bottom of the vessel (14) based on (12) place the ballast.
12. The method according to claim 7, in which after fixing the base (12) from the bottom of the vessel (14) to the specified base (12) attach the support (32).
13. The method according to claim 7, in which prior to placement of the base (12) on the designated placement location test various operating parameters of the base (12) and/or the turbine (10) in place for testing.
FIELD: machine building.
SUBSTANCE: proposed system comprises rotor assembly with axial symmetry about rotational axis and features rotor end face located upstream, turbine shroud ring 102 housing, at least, part of rotor assembly and ejector ring 128 housing, at least, part of said turbine shroud ring 102. Said turbine shroud ring has inlet and outlet. Said turbine shroud ring outlet 117 comprises multiple elements turbine shroud ring mixer and features noncircular cross-section. Ejector ring 128 comprises inlet and outlet.
EFFECT: higher output and efficiency.
15 cl, 35 dwg
FIELD: power engineering.
SUBSTANCE: run-of-river pumping hydraulic power plant comprises a hollow shaft 1, double-wing blades 20 of sail type, joined with the shaft 1 with the help of carriers 4, displacement pumps of double action. On the axis 4 of double-wing blades 20 there are levers 6, hingedly joined by means of traction bars 8 with a crosspiece 9 at the end of the pump stem. The discharge chamber 16 of pumps by means of pipe sections 17 is hydraulically connected with a hollow shaft 1. Double-wing sail-type blades 20 of durable thick hydrophobic cloth have larger length compared to the axis 5 of blades 20.
EFFECT: water supply and power generation by one plant.
FIELD: power engineering.
SUBSTANCE: power plant for conversion of energy of air or water flow currents comprises a power takeoff shaft and a wing or an airfoil section kinematically connected to it. The power takeoff shaft is arranged in the form of a crankshaft. The crankshaft is equipped with a journal with sides and two L-shaped levers. Each lever with its one arm is rigidly connected to an axis of rotation for power takeoff, and with the other arm - to the appropriate side of the journal. The wing or the airfoil section is connected to this crankshaft by means of slings. The rear edge of the wing via bearings is connected with slings to the axis of the crankshaft journal, and the front edge of the wing - via bearings to coaxial arms of L-shaped levers.
EFFECT: invention makes it possible to simplify design and to reduce metal intensity of a power plant.
FIELD: power engineering.
SUBSTANCE: plant comprises a vessel with an inlet and an outlet for water, a turbine 12 with multiple blades 22. The turbine 12 is equipped with a mechanism for blades control arranged as capable of controlling blade angles relative to a working flow so that each blade 22 rotates around the appropriate axis with a rotation speed equal to a half of turbine 12 shaft rotation speed, as a result a larger area of the blade 22 surface faces the incoming water flow, to drive the turbine 12 in the preset direction of rotation. The smaller area of the blade 22 surface faces the incoming water flow opposite to the driving direction. The plant additionally comprises a partition 49, which passes almost from a central axis to assist in directing the working flow around a part of the vessel, through which each blade 22 moves as its larger area of the surface rotates.
EFFECT: development of a plant capable of fuller usage of a tidal cycle for energy generation.
16 cl, 7 dwg
FIELD: power engineering.
SUBSTANCE: mechanism of water flow energy conversion comprises energy receivers arranged on a rigid frame in the form of rectangular planes. These planes are covered with a water-impermeable material. Energy receivers are installed inside a body and are connected to two centres of rotation. One of rotation centres with the help of a crosspiece and a shaft is joined to ends of energy receives via axes. These axes at one side are rigidly connected to ends, and at the other end are joined with a ring. The ring centre of rotation is displaced relative to the crosspiece centre of rotation. The ring is movably joined with a body by means of rollers fixed on body walls. Whenever a ring rotates, energy receivers make circular movements, and angle of their inclination to the flow remains unchanged. Movement against the flow takes place in an air medium.
EFFECT: invention makes it possible to simplify mechanism design.
FIELD: engines and pumps.
SUBSTANCE: every load-bearing element 5 of engine for fluid power utilisation is arranged to reciprocate in guides 3 on one of openings 4 in carcass 2, along carcass lengthwise sides. Elements 6 for fluid to act on are made up of hydrodynamic profile wings, each being fitted on axle 7 of said element 5 to rotate on axle 7 for interaction with fluid flow. Means for carrying wing position is made up of wing turn limiters 8 arranged in symmetry on lengthwise side of carcass 3. Aforesaid elements 5 are coupled by articulated levers 10, 11 to shift elements 5 by amount selected from the condition that with element 5 staying in one of extreme positions, another element 5 coupled therewith stays in one of intermediate positions.
EFFECT: higher engine efficiency, reliability and simplified design.
FIELD: power engineering.
SUBSTANCE: riverbed hydraulic power plant comprises an impeller installed on vertical stands 1 of a base 2 and comprising a shaft 3 with radial drivers 6 and rectangular blades 8, a multiplier with a shaft and a generator. The upper part of rectangular blades 8 is installed hingedly on fluoroplastic bushings at the ends of drives 6. In the side ends of the lower part of the blades 8 there are rollers 9 that roll in guides of -shaped form of fixed sides 10 that are bean-shaped. Guides in the front part have a break or are made as closed with a transition section from the horizontal position of the blades 8 into the vertical one. Blades 8 are made of polymer material. The multiplier's shaft is made vertical.
EFFECT: simplified design of the riverbed hydraulic power plant with higher reliability of operation and increased capacity due to serial connection of hydraulic power units.
2 cl, 8 dwg
FIELD: power industry.
SUBSTANCE: hydraulic power device includes many blades 21 located at least partially in water flow 23, which are brought into rotation with this water 23. Blades 21 are located along drive shaft 5 with offset relative to each other in circumferential direction and made in the form of deflectors having the shape of propeller. Device is equipped at least with one generator 3 for generation of electric energy, which is connected to drive shaft 5. Position of blades 21 is adjustable so that setting angle of blades along drive shaft 5 can be changed from blade to blade. Gap between blades in longitudinal direction of drive shaft 5 is adjustable.
EFFECT: creation of hydraulic power device compatible with environment and having simple design and easy installation; at that, being effective at varying water supply conditions.
22 cl, 23 dwg
FIELD: power industry.
SUBSTANCE: underwater river-run hydroelectric power plant includes housing 1 with convergent supply and divergent discharge water passages, working chamber 4 with impeller placed in it. Working chamber 4 is toroidal-shaped. Impeller is made in the form of circular screw 5. The latter is kinematically connected in series to carrier 7, multiplying gear 8 and electric generator 9, which are arranged in air dome 6 located in central part of working chamber 4.
EFFECT: increasing efficiency due to increased torque moment of impeller shaft when obtaining electric power as a result of conversion of kinetic energy of water flow passing through river-run power plant irrespective of seasonal state and economic belonging of water reservoir.
FIELD: power industry.
SUBSTANCE: hydraulic turbine of immersion type includes rotor 20, housing-stator that is integrated into rotor 20 and electricity generating means. Rotor 20 has outer rim 22 that encircles the blades 21. There is one or more floating chambers 60 located in outer rim.
EFFECT: rotor weight reduction for floating obtaining.
FIELD: engines and pumps.
SUBSTANCE: proposed turbine comprises vaned rotor 34 vanes being arranged between inner ring 32 and outer ring 33. It is provided also with retaining appliances including mounting flanges 22, 23 and antifriction appliances including inserts 31 and bearings 72 limiting rotor biaxial displacement relative to housing 21. Water flowing in either direction actuates the turbine while retaining and antifriction means allow rotor to displace along the axis in both direction under effect of bidirectional water flow. Antifriction means limiting rotor axial displacement feature, preferably, increased thickness to allow rotor, as said means wear, to move axially relative to housing 21.
EFFECT: turbine operating in bidirectional water flow without turbine reorientation, axial displacement of rotor.
9 cl, 7 dwg
FIELD: power industry.
SUBSTANCE: system contains partition 112 installed across water weight and containing upper and lower ropes 124 in the form of closed loop, between which grates of sails, which provide movement of ropes along closed trajectory, are fixed in series. This movement is converted to electric energy with one or more converters included in the system.
EFFECT: invention is aimed at creating the energy conversion system for electric energy generation with the use of flood movement of water masses, which has no impact on vulnerable seashores and ecosystems of estuaries.
16 cl, 19 dwg
FIELD: power industry.
SUBSTANCE: method for producing electric energy from sea currents involves sea water intake to pipeline 3 arranged in cavity of circular cylinder 1 with vertical axis, passage of sea water to working member of hydraulic generator 4, and water discharge from pipeline 3. Sea water intake to pipeline is performed in circuit 5 of circular cylinder 1 at leakage point of approaching flow. Sea water discharge from pipeline 3 is performed at point 6 in circuit of circular cylinder 1, which is located in the gap between two adjacent circular cylinders 1.
EFFECT: higher efficiency of energy extraction from sea currents and improved operating conditions.
FIELD: power industry.
SUBSTANCE: tidal hydroelectric power station includes barriers 1 including the foundation, movable constructions 2 and systems of generator units, which include turbines, voltage generators. Hydroelectric power station is equipped with sealing systems 11, 12 connected to control system with digital processor and data input/output device, braking devices 9, 10, devices for determining the water level before barriers 1, after barriers 1 and for determining the lifting of movable construction of barrier 1, water dissolving device with pumps, and hydrogen and oxygen storages. Systems of generator units are installed between barriers 1, movable constructions 2 of which are installed in guides 3 with possibility of being lowered and lifted depending on the water level and including leak-proof capacities 5, attachment points of equipment, and guides. On guides 3 there fixed are braking devices 9, 10. On guides 7 of movable construction 2 there fixed are sealing systems 11, 12. Generators are connected to data rectifiers connected to the control system and to power rectifiers connected to water dissolving device and to converter of DC to three-phase AC, which is connected to the control system.
EFFECT: operating efficiency of hydroelectric power station is improved, and stored energy is used during the period of time between changes of water level.
FIELD: engines and pumps.
SUBSTANCE: invention is intended for conversion of sea tides energy. Power plant comprises body with open inlet and outlet installed on vertical shafts of rotation connected to power generators, hydraulic turbines in the form of drums, on external surfaces of which vanes are fixed. At body inlet and outlet vertical shields are installed, which direct tide flow to vanes of hydraulic turbines with provision of their rotation. Drum representing hydraulic turbine consists of cones connected with bases, on external surfaces of which vanes are fixed along helical line so that beginning of each vane on lower top of drum cone is displaced along with its rotation direction relative to the end of vane at the second upper top by 1-2 steps of vanes. On lower cone parts of drum vanes have shape of rotation in the form of cylinder, and in upper part of drum vanes repeat cone shape during rotation, which is increased by double value of vane. On lower cone part of drum, which makes 1/3 of the whole drum, number of vanes is doubled, and width of passage hole between drums in lower part is equal to double size of vane in the area of drum cone bases connection. Rotary vertical stems of tidal shields are installed from longitudinal axis of body symmetry on both sides at distance, which does not exceed diametre of drum lower part rotation, and ebb shields - from side of body at the distance equal to radius of drum lower part rotation.
EFFECT: higher efficiency of tide energy conversion into electric energy.
3 cl, 3 dwg
SUBSTANCE: water flow energy converter into electrical energy consists of a body with open flow windows being provided in the lower part of the body during low-tide and in the upper part during high-tide. The converter also includes endless band inside the body, which is reeled on drums, operating blades in the form of double-lever plates. The operating blades are bent relative to each other and provided with hinge in the point of bending. They are installed on the external side of endless band along the whole its length. The stabilisers are installed on drum shafts outside the body boards. The said stabilisers pull down endless band with blades with regard to the body bottom to activate part of the blades in the upper part of endless band during high-tide. Alternatively, the stabilisers lift the endless band to activate part of the blades in the lower part of the endless band during low-tide. There are vertical slots made in the body to adjust height of lifting or pulling down. The movable gate is attached to the body end side and directs flow to the upper part of endless band during high-tide. The movable gate takes horizontal position to allow free flowing during low-tide.
EFFECT: improved effectiveness of device, simple structure and operation, wade range of application.
FIELD: power engineering.
SUBSTANCE: invention relates to small power engineering for transforming the flow of rivers and tides into angular kinetic energy on free-flow link hydroelectric power plants. The hydro-turbine consists of a hollow carrying shaft-cylinder with adjustable ballast, which makes it possible for the hydro-turbine to be fully submerged into water or bring it to the surface. On the shaft-cylinder are placed semi-cylinder arms, to whose ends are attached annular containers with ballast, which ensure neutral buoyancy of the hydro-turbine. On the shaft-cylinder are mounted equally along its length several discs or flat cylinders with grooves on the rims, to which are attached arms. Arms have the shape of the lateral sides of the hollow cylinder, cut-off longitudinally, thus, so that the discs are inscribed on the inner ends of the arms. A central hole is formed between the discs, of the surface carrying shaft-cylinder and the inner ends of the arms, through which communicate all vane spaces. As a result the flow goes through the entire turbine, touching the arms, which are located on the rear from the flow of the turbine end. The outer ends of the arms are tightened by rings-hoops and will form a multibladed cylinder, whose base is fully closed with the containers of ballast, tightly joined with the ends of the arms and hollow carrying shaft-cylinder.
EFFECT: hydro-turbine has a high coefficient of efficiency and is simple to produce.
FIELD: power engineering.
SUBSTANCE: invention relates to tidal power stations. Device (1) for the tidal power station contains at least one underwater sail (14), essential construction (2, 4) and at least one transmitting element (10). The underwater sail (14) connected with the transmitting element (10) can move between two storage devices (18). When the sail is in the storage devices, it is not connected with the transmitting device.
EFFECT: reduction in the cost of producing electric energy, reduction in the operational problems and increase in efficiency.
9 cl, 6 dwg
FIELD: power engineering.
SUBSTANCE: invention relates to hydroenergetics, to low pressure flows of seas, rivers and water outlets of hydro electric stations and reservoirs. A tidal hydroelectric plant contains a cylindrical body of the machine compartment with a gear box and electric generator of the tail hydroturbine with arms, mounted on its axis and the axis of rotation. On the upper part of the body is fixed a flat pylon, on the end of the pivot system and the axis of rotation. The body is suspended on a crossbeam in the passage of the catamaran for lifting the power station to the level of the servicing platform on the grooves of the support bridge pier, connected by the arch with a lifting mechanism. Arms of the hydroturbine are made short and wide sweptforward on the leading edge and with a concave surface in the form of a parabolic curve, and a convex surface of the tailpiece perforated with slanting slits.
EFFECT: reduces the depth of the low pressure power stations, increases the hydrodynamic quality of the hydroturbines arms, and ensures periodic lifting of the power station from the water.
3 cl, 4 dwg
SUBSTANCE: turbine plant driven by water to produced power from the water flow column comprises a rectangular deck with streamline cross section furnished with a lower and upper surfaces incorporating front and tail edges relative to the water flow direction at least one turbine and a turbine assembly going up from the deck upper surface and deck support. The said support stays permanently on the water column bottom so that the deck, when installed onto the aforesaid support, the vertical space between the deck power surface and water bottom, and includes an appliance to move the deck relative to the support elements for the deck to move from operating into uplifted position whereat every turbine assembly is accessible on water column surface.
EFFECT: production of bearing structures to support hydraulic turbines.
10 cl, 26 dwg