Hydroelectric turbine to be used in bidirectional in tide streams
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
The present invention generally relates to turbines and power units, generating electricity from the flow of fluid, i.e. air or water, in particular, relates to such devices in which the fluid flow causes the rotation of the rotor is a propeller type with open or closed blades, and the rotation is transmitted to the generators that produce electricity. More specifically, the invention relates to such devices in which the rotor has a hollow centre, and is capable of rotating in both directions, respectively, the direction of flow of water at high tide and low tide.
The process of producing electricity with the help of hydraulic turbines, and turbine, driven by the wind, are well known. The fluid flow causes the rotation of a propeller-type rotor or blades. Turbines operating from wind power, are located in areas with stable air flows, and these devices typically turn to align them in the direction that is optimal from the point of view of the use of wind energy. Hydraulic turbines are usually placed in fast water currents, typically as a constructive element of the dam. Conditions in which there is such a stream of water, called high-pressure.
Although most turbines have a C is tranny rotary shaft, based on the bearings with oil lubrication, which is installed on the blade or blades, it is shown that turbines with a hollow center may have advantages compared with turbines having a Central shaft. Turbine with a hollow center in which the blades are located between the inner and outer rings or rims, and the energy is transferred through the outer rim, can be effective in conditions of low pressure, i.e. at a slower currents. This is due to several reasons, for example, the fact that the elimination of the Central shaft and the Central parts of the blades reduces the resistance of the medium, and the fact that due to the lower weight design it is possible to apply the impellers are of larger diameter, which increases the contact surface with the low-pressure flow. Another advantage of using turbines with a hollow center in hydropower is that, because the blades do not hinder the flow of water through the Central portion of the turbine, there may be fish. Examples of such turbines with a hollow centre are available in U.S. patent No. 5,592,816 issued 14.01.1997 and reissued under number RE38.336 2.12.2003, in U.S. patent No. 6,648,589 issued 18.11.2003, in U.S. patent No. 6,729,840 issued 4.05.2004, and in the application for U.S. patent US 2005/0031442 published 10.02.2005 (serial number 10/633,865).
Because the fluid flow in these turbines is directed in the bottom direction, the force acting on the blades and impellers, also oriented in the same direction. Thus, as of today, the problem of friction in the place where the outer rim is retained by the body, it was necessary to solve only downstream or downwind of the rotor, since the fluid pressure in one direction only. In turbines with hollow center of the outer rim rests on the housing with the output side, whereas with the input side of the rim is not exposed to pressure directed downstream or in the direction of the wind.
Examples of turbines used in bidirectional flow of the fluid are U.S. patent No. 4,421,990 issued Houssou and others (Heuss et al.), in U.S. patent No. 6,168,373 issued Vautier (Vauthier), in U.S. patent No. 6,406,251 issued Vautier (Vauthier), in the United Kingdom patent No. 2,408,294 issued to Sysmenu and others (Susman et al.), and in the International WIPO publications WO 03/025385 filed by Davis and others (Davis et al.).
The purpose of the present invention is to provide hydroelectric turbine or hydroelectric unit, which can operate in bidirectional flow of water without spatial re-orientation of the turbine, while the bidirectional current includes the current in one direction in a certain period of time and the flow in the opposite direction during the subsequent period of time. Even the bottom object of the invention is to offer turbine, capable of generating electricity by being placed in a bidirectional tidal flows. Another objective of the invention is to provide a turbine rotor which can be moved in the axial direction, in particular, as the wear of the axial bearings water lubricated, so that the operation cycle of the turbine between the two replacement bearings significantly extended. Another objective of the invention is to provide a turbine in which the axial displacement of the rotor in the housing allows you to remove foreign objects, gets stuck between the rotor and the housing. Another objective of the invention is to provide a turbine in which the axial displacement of the rotor in the housing reduces the amount of effort required to bring it into rotation.
The invention is a device to generate electricity from turbines driven by tidal otlivnyy over or otherwise variable in direction and bi-directional flow of water, where bi-directional flow of water includes a flow in one direction during the first period of time, for example, at high tide, followed by a flow in the opposite direction in the next period of time, for example, at low tide, and this cycle is iterative. Such water flow is usually p is oistat in low-pressure conditions, that is, the flow or movement of water not characterized by a high rate or concentration.
This approach assumes the premise hydraulic turbines or hydropower unit with hollow center's strongest maelstrom, so that the water flows bi-directional tidal currents cause a turbine and produce electricity, wherever they were sent, without the need for spatial reorientation of the turbine. The turbine includes a rotor or rotating block composed of at least one set of rotating blades of a propeller or similar structures with open or closed blades mounted within the stationary casing, and the blades are preferably located between the inner annular rim and the outer annular rim, so there is a relatively large hollow center is not occupied by any structural elements. The water flow passes the rotation of the rotor, and this energy is transferred to one or more generators that produce electricity, or the design of the rotor and the housing allows them to operate as a generator, in which, for example, on the surface of the outer rim are the magnets and the surface of the housing surrounding the outer rim, are the coils.
With regard to changing the direction of flow of water against the opposite, there should be the bearings or other antifriction means that would reduce the contact and friction between the outer rim and the annular mounting flanges on the input and output stream. In the preferred implementation to minimize friction rotation between the outer surfaces of the rim and the mounting flange of the housing using liners and support, designed for operation in water, preferably water lubricated. In the most preferred implementation support and/or liners, limiting the movement along the axis, have an increased thickness, so that the device is suitable for operation over a longer period of time, as these bearings/bushings wear out, due to the fact that the rotor can move in the axial direction under the influence of water flow.
BRIEF DESCRIPTION of DRAWINGS
Figure 1 is a hydroelectric turbine is shown in a projection oriented along the axis.
Figure 2 hydroelectric turbine is shown in a projection perpendicular to its axis.
Figure 3 is the preferred implementation is shown in partial section, so that visible bushings and bearings for operation in water, representing the anti-friction means.
Figure 4 in the same form as Figure 3, presents an alternative implementation, where the anti-friction means comprise Ott is libaudio magnets.
Figure 5 in the same form as Figure 3, presents another alternative implementation, where the anti-friction means include wheel drive, transmitting energy to the rotation of the generator.
Figure 6 in partial cross-section is preferred implementation, where the supports limiting the movement along the axis, have an increased thickness.
Figure 7 presents a partial section view like figure 6, but in the situation after wear of bearings and offset of the rotor in the direction of water flow.
DETAILED description of the INVENTION
Below the invention in the best mode and the preferred implementation will be described in detail with reference to the drawings. In the most General sense, the object of the invention is a device for the production of electricity, denoted as a whole "hydroelectric turbine" or "hydropower unit"of energy low-pressure bi-directional or changing the direction of water flow, especially in the first bi-directional water flow in conditions of tidal currents, i.e. the cyclical movement of water from high tide to low tide and back.
As generally shown in figures 1 and 2, the preferred implementation of the invention is a hydroelectric turbine 10 with a hollow center that includes a housing 21, which has in General the shape of the ring. Configurations the I casing 21 is not limited to the one shown here, i.e. there may be other configuration, provided that the housing 21 performs, among other functions concentric retaining the rotary unit or the rotor 31, allowing, at the same time, a limited axial displacement of the rotor 31, and allowing, in addition, the rotation of the rotor 31 relative to its axis in both directions, and impartation energy of rotation of the mechanically driven generator 42 or his own part in the production of electricity, for example, using a set of magnet coils 51 and 52. The housing 21 contains a first mounting flange 22 and the second mounting flange 23 located on the sides of the inner surface 24, which together comprise limiting or restraining means, the dimensions of which permit limited movement of the rotor 31 in either direction along the axis, and these flanges 22 and 23 preferably have the form of rings, and each of them has an inner flat surface, directed to one of the side surfaces of the rotor 31. Alternatively, the mounting flanges 22 and 23 need not be continuous.
The minimum distance between the flanges 22 and 23 is determined by the length of the outer rim 33 along the axis, with all anti-friction means, such as liners 71 or supports 72 located on the rotor 31 and the housing 21 to the outer rim 33 of the rotor could enter the channel block is sa 21. In the implementations shown in Fig.3-5, the inner distance between the mounting flanges 22 and 23, which determines the maximum speed of the rotor 31 in the axial direction, only slightly more than the length of the outer annular rim 33 along the axis so that axial displacement of the rotor 31 is allowed, but remains relatively limited. On the contrary, in the implementation shown in Fig.6 and 7, the distance between the flanges 22 and 23 in the axial direction is significantly greater than the minimum distance required for an external annular rim 33, so that more Pets displacement of the rotor 31 on the axis.
The rotary unit or the rotor 31 has an internal annular rim 32 and the outer annular rim 33. Between the inner rim 32 and the outer rim 33 is a set of vanes or blades 34, and the blades 34, according to known solutions, are arranged at such an angle or curved so that the fluid motion in the axial direction 99 in both directions, as at high tide and at low tide, causing the rotation of the rotor 31. The number, configuration and material of the blades 34 may be different, but in a preferred embodiment, the blades 34 should be as light as possible without compromising the structural integrity of the structure.
The inner rim 32 forms a relatively large hollow center 35, which increases the efficiency of hydroelectrically turbine 10 at low pressure, since the bearing of the rotor 31 is forced to the outer surface of the rim 33 and is not concentrated in the Central Valais. Due to this, the housing 21 and the rotor 31 can be made significantly larger than in the case of the rotor mounted on the shaft, which can significantly increase the total surface area of the blades 34, and this, in turn, ensures the effective operation of hydroelectric turbine 10 at low pressure.
In the preferred implementation shown in Figure 3, the housing 21 and the rotor 31 together constitute a generator to produce electricity. This function can be provided, if you put a set of magnets 51 on the outer surface of the outer rim 33 and a set of coils 52 on the inner surface 24 of the housing 21 or the channel 21 in the housing so that the housing 21 will turn into a stator of the generator. When the rotor 31, the magnets 51 are passing by the coils 52 that leads to production of electricity in a known manner.
It is also important to minimize the friction between the rotor 31 and the housing 21 to provide anti-friction means in addition to the lubrication provided by the water. In the preferred implementation, this is achieved through a set of pads 71 and the supports 72, for example, supports, designed for use in water and the blur is by the water, as shown in Figure 3. By the arrangement of supporting elements on the outer rim of the rotor bearing surface is increased and the pressure per unit of its area is reduced to such an extent that it can be used water lubrication.
It is shown that the bushings 71 are mounted on the lateral surfaces of the input and output, external rim 33, and the support 72 on the inner surface of the housing 21 and the mounting flanges 22 and 23, but the arrangement of these elements can be reversed. It should be understood that the terms "input" and "output" in this application are used in a relative sense, and the exact value depends on the direction of flow of water through the turbine 10, which is inherently bidirectional. The same degree of relativity is obviously present in the use of terms such as "upstream" and "downstream" and the like. Axial inserts 71 correspond to the axial or thrust bearings 72A and with them control the movement of the rotor 31 in the axial direction. Radial liners 71b and radial bearings 72b together control the movement in the radial direction. The inserts 71 is made of a material with a relatively low coefficient of friction, such as stainless steel and the like, a support 72 for operation in water is also made from a material with a relatively low coefficient of friction, for example, the R of the polymer, in particular Teflon, ceramics, etc. These elements, as well as all parts of the device must be resistant to salt water and other aggressive environmental influences, since the application of the invention in a typical case implies the existence of such effects on the structural elements, in particular considering the fact that tidal flows usually consist of sea water or water with salt. The inserts 71 and the seat 72 for operation in water together reduce the friction and resistance in the radial direction and in both axial directions, so that the rotation of the rotor 31 relative to the housing 21 is hampered minimum.
Because Pets axial displacement of the rotor 31 that is directed upstream, under the influence of tidal currents in any direction, anti-friction means on the surface of the turbine 10 with nothing in contact in the axial direction, and therefore are not subjected to wear during that period of operation of the turbine, when the tidal maelstrom over directed in such a way. As soon as the direction of the tidal currents is changed, the rotor 31 is shifted on its axis, resting in what was previously a directed upstream side of the housing 21, so that nothing will touch and, therefore, will not be subjected to wear and anti-friction means on the sides of the turbine 10, which is now oriented upstream. This design provides the wear of the antifriction means only one side of the turbine 10 at any given time, which reduces the full wear of the antifriction means.
In the preferred implementation shown in Fig.6 and 7, support a, which limit the movement of the rotor 31 along the axis initially have an increased thickness so that the inner distance between the first and second mounting flanges 22 and 23 substantially greater than the minimum distance required to keep the rotor 31 in a certain range in the axial direction. This forms a short cylindrical track 80, directed along the axis at which the rotor 31 can be moved axially, just as the piston moves along the cylinder. When tidal maelstrom over 99 directed in the first direction, the rotor 31 is displaced with water flow, and the offset of the rotor 31 in this direction limit perceiving axial bearing a with a low coefficient of friction, located "downstream", in combination with the axial liners a. When tidal maelstrom over 99 changes direction on the opposite, the rotor 31 is shifted in the opposite direction, so that the displacement of the rotor 31 in the second direction limit support a with a low coefficient of friction is opposite side, which now is "downstream". This displacement of the rotor 31 relative to the housing 21 may be easier when the rotor 31 has a hollow center, so that all retention efforts to the outer rim 33, in contrast to the turbine in which the rotor is mounted on a Central shaft or axis, although it should be noted that the same axial displacement can be realized in turbines, mounted on the shaft. After some time, support a increased in size under the influence of friction wear. 7 shows the turbine 10, which has been used for a long time, so support a significantly deteriorated. When tidal maelstrom for 99 points in the drawing to the right, the rotor 31 is shifted to the right. When tidal maelstrom over 99 changes its direction to the opposite, as shown by the dashed line, the rotor 31 shifts to the left. Since the size of the housing 21 and supports a allow the rotor 31 to be displaced along the axis and as a support a have an increased thickness, which extends their service life, the time intervals between required maintenance procedures and repairs associated with the need to replace the bearings a significantly extended. Thus, the design supports a allows efficient operation even after considerable wear in the axial direction. In particular, suppose the equipment, to turbine 10 could be operated even when the wear of bearings a in the axial direction to the thickness component from 100% to 10%, more preferably from 100% to 30%, and most preferably from 100% to 50% of the original thickness. To accommodate axial displacement of the rotor 31 in both directions, preferably using radial bearings 82b, having a greater length or increased size in the axial direction compared to the axial inserts 81b. The sizes of the interacting magnets coils 51 and 52 must also consider this axial displacement, not admitting that it was caused substantial loss of power. An additional feature of the axial displacement of the rotor 31 relative to the housing 21 is that foreign objects caught between the rotor 31 and the housing 21, lighter washed out of the device, tidal currents, because the wider the gap between the flange 22 or 23 upstream and flat surface of the outer annular rim 33 enhances flow in this interval. Another positive feature is that to bring the rotor 31 in the rotation of the stationary state requires less energy because the rotation time to start before the moment of contact between the anti-friction means downstream and the outer rim 33.
In alternative variations which the anti-friction means may include repelling magnets 61, as shown in Figure 4. Repelling magnets 61 are installed in pairs on the outer rim 33 and the inner surface 24 of the housing 21 and the mounting flanges 22 and 23, and in each pair to each other direct opposite poles, so that the force of magnetic repulsion prevents contact between the outer rim 33 and the housing 21 with the mounting flanges 22 and 23. In another alternative implementation, shown in Figure 5, as antifriction means you can use a mechanical device, such as roller bearings or other bearings. In the present drawing the implementation of the anti-friction means include wheels 41, through which the shaft 43 drives a generator 42 so that the rotation of the rotor 31 is directly transmitted to the generator 42, producing electricity. This is the latest implementation of the least desirable because it will be difficult to achieve the required degree of compaction of these components to protect them from contamination and deterioration over time.
To generate electricity from the energy of tidal currents, one or more turbines 10 are immersed in water or placed at a depth where they are exposed to tides, preferably in open water, so the water will flow through the rotor 31 in one direction while increasing the value of the level or tide and after that will flow through the rotor 31 in the opposite direction during lowering of the level or low tide. During high tide, the rotor 31 rotates in one direction, generating electricity in this way. At low tide the water flows in the reverse direction, and the rotor 31 rotates in the opposite direction, also producing electricity. Designed with a hollow center, a relatively large surface of the blades and the dispersal of the supporting force from the rotor 31 in the housing 21 and mounting flanges 22 and 23, the rotor 31 can rotate at low pressure, i.e. tidal currents are sufficient for the production of electricity.
It should be borne in mind that the experts in the art can easily find equivalents and substitutes for some of the items listed above, but because the actual volume and the claims are as they are presented in the following paragraphs.
1. Turbine to generate electricity from the energy of the bidirectional flow of water moving in the first direction and in an opposite second direction, without requiring reorientation of the provisions of the said turbine relative to the direction of flow of water containing a rotor comprising blades extending from the outer rim, and the specified rotor is mounted for rotation in the first direction and the second direction of rotation, a housing, comprising a means of restraint, to whom that hold the specified rotor in the axial and radial directions, moreover, the specified enclosure allows the specified rotor in the process to move along the axis in both directions under the influence of bidirectional water flow, anti-friction means, which in the process reduce the frictional resistance between the said casing and the rotor, and these anti-friction means include liners and support, designed for operation in water, and the amount of movement of the specified rotor along the axis increases as the thickness of these anti-friction means reduced under the influence of friction, and means to generate electricity from the rotation of the specified rotor as specified in the first rotation direction and in a second specified direction of rotation, characterized the fact that the thickness of these anti-friction means such that claimed the turbine remains usable even when the wear of the antifriction means in the axial direction to the thickness component of from 100 to 10% of the original thickness.
2. Turbine according to claim 1, characterized in that the shape and size of the specified body such that the outer rim and the retaining means is not in contact with each other in the axial direction from the outer rim, which is in the process of work is upstream.
3. Turbine according to claim 1, characterized in that the form and once the minimum level specified body are the rotor was stationary, may start rotating until it touches the sides of the rim, located downstream from the holding means.
4. Turbine according to claim 1, characterized in that the said retaining means include a first mounting flange and the second mounting flange.
5. Turbine according to claim 1, characterized in that the said anti-friction means in the process reduce the resistance between the retaining means and the specified outer rim.
6. Turbine according to claim 1, characterized in that the retaining means has a capability to operate effectively, despite the deterioration in the axial direction due to friction.
7. Turbine according to claim 1, characterized in that the inserts are made of stainless steel and indicated support for operation in water is made of a polymer with a low coefficient of friction.
8. Turbine according to claim 1, characterized in that the inserts are installed on the specified outer rim and indicated support for operation in water is installed on the specified first and on the second mounting flanges.
9. Turbine according to claim 1, characterized in that said housing includes an inner surface, and indicated support for operation in water is also installed on this inner surface.
10. Turbine p is 1, characterized in that said housing includes an inner surface, with said funds to generate electricity include magnets mounted on the specified outer rim, and a coil located at the said inner surface.
11. Turbine according to claim 1, characterized in that the rotor includes an inner rim, which forms a hollow center, and the blades are fixed between the inner and outer rims.
12. Turbine according to claim 1, characterized in that the said anti-friction means comprise support, designed for operation in water, water lubricated.
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
FIELD: machine building.
SUBSTANCE: proposed power generation plant exploits the power of sea wave and tides. The plant comprises a hollow cylindrical housing with its bottom open. It communicates with seawater and is anchored to sea bottom. The said housing features a narrowing forming a smaller cylinder. The casing is attached to the aforesaid cylinder. The aforesaid casing houses an impeller driven by air sucked in/out from the housing inner space via air ducts formed by the aforesaid casing and non-return valves mounted inside the upper small cylinder, the air force being directly dependent upon the water level caused by the running wave.
EFFECT: simple low-cost high-efficiency power generation unit to be mounted at whatever sea- or-ocean coast line.
4 cl, 22 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: machine building.
SUBSTANCE: invention refers to devices wherein flow of liquid rotates big rotor of screw type or rotor wheel having external circular rim positioned inside big circular case. A hydro-electric turbine consists of rotor 20 positioned inside case 30 with external circular rim 22 located in channel 32 made in case 30. The turbine is improved due to making at least one exit channel 50 for removal of foreign particles. Foreign objects caught between rotor 20 and case 30 are removed through exit channel 50.
EFFECT: avoiding or minimisation of foreign objects accumulation in channel of case.
6 cl, 4 dwg
FIELD: machine building.
SUBSTANCE: orthogonal generating unit consists of orthogonal turbine with shaft and blades of hydro-dynamic profile secured around shaft and along latter and of electric generator. Orthogonal turbine is made six-tiered. Each tier of turbine is made with one blade secured on the shaft by means of cross-bars. All blades are equal in terms of weight per length unit of the blade. The blades of turbine tiers are arranged uniformly in circumferential direction around the shaft of the turbine forming three pairs of adjacent blades. In each pair the blades are positioned on opposite sides relative to the shaft. The blades in end pairs of blades have equal length, while the blades in a middle pair have bigger length. Weights of cross bars of the middle and end pairs of the blades are in the same correlation.
EFFECT: raised efficiency of orthogonal turbines with blades of hydro-dynamic profile and raised reliability of orthogonal turbines operation.
2 cl, 2 dwg
FIELD: engines and pumps.
SUBSTANCE: proposed pumping unit comprises float 13, housing 1 with hydraulic turbine, pump fitted in said housing 1 on common shaft with hydraulic turbine vane wheel rotor 2. Said pump is rigidly coupled with said rotor. It comprises also intake pipeline arranged in housing 1 on flow side and having cross section decreasing along flow direction. Pipeline outlet section is connected to pump intake branch pipe. Aforesaid pump represents a displacement pump. Pipeline outlet section allows directing the flow along tangential line to pump suction chamber inner surface in plane perpendicular to pump axis. Float 13 represents a hollow plate coupled with housing 1 by bracket 12 and arranged at the distance from lengthwise axis of housing 1 equal to radius of hydraulic turbine rotor 2 to displace relative to axis 14.
EFFECT: higher efficiency of operation.
FIELD: oil and gas production.
SUBSTANCE: installation consists of drill rig with drive, of platform deck, of hoisting crane, of tender platform, of concrete piles, of borehole, of complex of equipment mounted on platform for collecting, preparing and transporting oil and gas, of risers, and of point moorages. The installation corresponds to a supporting structure of hydro-technical concrete construction deepened into a water basin. Two of concrete piles are hollow inside and are interconnected in their lower part with an arc-shaped bridge of internal diametre commensurable with internal diametres of the first and the second concrete piles. Below sea level and at the point of the sea stationary platform location the first pile is equipped with water intake ports. Internal walls of the first hollow concrete pipe are equipped with guides made as triangles and directed axially to the bottom of the basin. A blade of a hydraulic unit is installed at the joint point of the hollow concrete pipe with soil; the hydraulic unit is arranged in a water proof container on a foundation plate. The container adjoins the first concrete pile. The second pile in its upper part is equipped with a port located above sea level. Diametre of internal surface of the port diminishes in the direction of drainage.
EFFECT: increased reliability of sea platform operation.
FIELD: power industry.
SUBSTANCE: hydraulic power station of sea current includes above-water platforms, horizontal and vertical load-bearing cables with buoys fixed on the platforms, weights located on the sea bed and attached to the buoys, generator units attached to the cables, electric power converters, devices for water separation to hydrogen and oxygen and control system. Generator units include pressure sealed electric power generators, blade elements and voltage regulators. Generator units are performed separated at the cables. To the horizontal load-bearing cables there attached are vertical cables. The outputs of device for water separation are connected to the device for hydrogen and oxygen liquefaction, which is connected with the pipeline and hydrogen and oxygen consumers. Pressure sealed electric power generator is attached to the front fairwater piece, which is attached to the voltage regulator. Blade element has a spiral form and is fixed on the electric power generator shaft and attached to the rear fairwater piece. Fairwater piece and spiral element have cavities that provide specified floatability. Generator units on the cables are separated by actuating cylinders. Vertical cables provide movement of maintenance elevators.
EFFECT: simplification of hydraulic power station operation, facilitation of its maintenance.
4 cl, 5 dwg
FIELD: engines and pumps.
SUBSTANCE: invention relates to designs of plants designed to convert water current energy into electric power. Proposed hydro-generator driven by sea current comprises hydrodynamic drive 2 and electric birotary generator 1 made up of housing 3, outer and inner rotors 4 and 5. Inner rotor 5 is arranged inside said housing 2. Hydrodynamic drive 2 represents blades 9 radially fitted on outer surface of outer rotor 4 and is mounted in casing 19 furnished with inlet and outlet branch popes. Housing 3 and casing 19 represents cylindrical structures. Outer rotor 4 seats outside housing 3. Rotors 4 and 5 are coupled via reduction gear 12 comprising driven gear 13 in mesh with outer rotor 4, idle gears 14 and drive gear 16 in mesh with inner rotor 5 to ensure counter rotation of rotors 4 and 5.
EFFECT: higher efficiency, reduced sizes and increased power output.
2 cl, 2 dwg
FIELD: engines and pumps.
SUBSTANCE: invention relates to wind and water power engineering, particularly to medium flow power converters that serve to convert flow power into electric power. Proposed unit comprises tube 1 accommodating first turbine with first electric generator and second turbine with second electric generator, first and second devices to center circular first rotor 2 and circular second rotor 5. Note here that circular first rotor 2 with first turbine and second electric generator with second turbine represent an integrated rotary unit wherein inner parts 8 of blades 9.1-9.N of first turbine are attached to second stator 7 of second electric generator. Outer parts 10 of blades 9.1-9.N of first turbine are attached to circular first rotor 2 of first electric generator.
EFFECT: higher efficiency of low power utilisation at particularly low medium flow rates.
10 cl, 3 dwg
FIELD: power engineering.
SUBSTANCE: orthogonal power aggregate consists of orthogonal turbine with blades of hydro-dynamic profile. The blades are secured between flat rings. The said aggregate also consists of an electro-generator. Also the orthogonal turbine is made double-level. Each level of the turbine is made with blades of arrow-shaped blades bent along screw lines and symmetrically inclined from vertical in the direction counter to the blades of the neighbour level of the orthogonal turbine. Ends of blades of both levels are attached to the ring located between the adjacent levels. A short-circuit rotor is secured to the ring facing inductors of the electric generator. Inductors are made with three-phase winding arranged crosswise.
EFFECT: upgraded reliability of operation and efficiency of power aggregate.
2 cl, 3 dwg
FIELD: power engineering.
SUBSTANCE: method is designed for generating electric energy using natural energy enclosed in high pressure formation. Proposed method includes placing of turbine in well to which high-pressure agent is delivered, and electric generator with cable. Turbine is installed in encased well between showing high-pressure formation and intake low-pressure formation. Turbine is connected by pipes with electric energy generator. Flow of agent from high-pressure formation into low-pressure formation and to surface is provided. Regulation of agent flow into annulus and tube space is provided by distributing valve arranged in lower part of assembly of turbogenerator and hole between housing of turbine and pipe connecting tube space with annulus.
EFFECT: provision of effective generation of electric energy using energy contained in high-pressure formations.
2 cl, 1 dwg