Hydrographically compressor accumulating installation
FIELD: power engineering.
SUBSTANCE: proposed plant is designed for converting energy of water flows into electric energy. Hydraulic power-generating plant contains at least two turbine water conduits arranged horizontally one over the other, generator installed over turbine water conduits, and orthogonal turbines arranged in water conduits whose shafts are installed vertically in bearing supports. Process spaces are formed in walls of turbine water conduits being sealed by detachable partitions. Said spaces accommodate bearing supports and connecting members mechanically coupling turbine shafts with each other and with shaft of generator. Bearing supports can be fastened in detachable watertight partitions. Plant can be furnished with at least two groups of turbine water conduits arranged one over the other horizontally along head front. Plant can be furnished with watertight communication channels designed for communication of process spaces with operating well of hydroelectric station.
EFFECT: provision of conditions for convenient mounting, demounting and servicing of equipment at reduced specific capital outlays.
4 cl, 3 dwg
SUBSTANCE: hydraulic unit of borehole hydraulic power plant includes hydraulic turbine that is connected to electric generator, which are installed in borehole, electric cable that connects electric generator on the surface with electric converter. Hydraulic turbine is turbodrill, electric generator is electric drill, which are unitised and connected by means of common casing with slots. To bottom part of casing fixing unit is connected, which includes bottom-hole thrust block, fixing unit levers and thrust levers, the sliding elements of which are installed with the possibility of movement along bottom-hole thrust block cone, thus affecting fixing element levers, causing their divergence to borehole walls. Hydraulic unit is equipped with unloading device, for instance, jack that is connected with top end of boring column.
EFFECT: operable device for power generation by borehole hydraulic power plant and avoidance of expenses for development of borehole hydraulic unit.
FIELD: power engineering.
SUBSTANCE: invention refers to measuring methods of turbine flow rate of river-run hydraulic power plants. The method is meant for determining water volume flow rate of turbines of low-pressure hydraulic units with reinforced concrete spiral chambers of trapezoidal cross-section with partial angle of contact and stators made in the form of columns. At that, the columns are combined with chords from above and from below. The method consists in measuring average flow velocity by using acoustic method and determining water volume rate as per the measured velocity value and constant flow coefficient. Acoustic beam is formed with acoustic converters. Flow coefficient is determined at power tests performed at a certain site. As per the first version of the invention, one of acoustic converters is installed on upper or lower belt of the stator, escaping stator column. At that, the second acoustic converter is installed on the spiral chamber wall in horizontal plane or at an angle thereto. As per the second version of the invention, acoustic beam reflector is installed on upper or lower belt of the stator. Both acoustic converters are installed on the spiral chamber wall. At that, one branch of acoustic beam cut off with the reflector is routed in plan at an angle of installation of stator columns. The second branch of the beam is routed in plan at an angle of 90° to the first one.
EFFECT: invention allows providing high measuring accuracy of turbine flow rate of river-run hydraulic power plants and reliability of the measuring system allowing to perform continuous operating control of flow rate.
4 cl, 11 dwg
FIELD: engines and pumps.
SUBSTANCE: invention relates to power engineering and can be used for electric power generation. Proposed hydraulic unit comprises hydraulic turbine coupled with electric generator. Note here that hydraulic turbine represents turbodrill 10, electric generator represents electric drill 14 with their housings 17 and 18 integrated via sub 19 and armature-spindle 15 of electric drill 14 with rotor of turbodrill 10. Electric drill 14 is arranged above turbodrill 10. Housing 17, of electric drill 14 is coupled with lower end of drilling ripe string, the string upper end being fixed at the well mouth. Sub 19 has holes 20 communicating the well with hydraulic inlet of turbodrill 10 and hydraulic channel of armature-spindle 15 of electric drill 14. Well lower end represents its bottom, while well lock-down assembly represents bottom support jointed with lower part of housing 18 of turbodrill 10 arranged to take hydraulic unit forces and to turn hydraulic unit through. Note that well walls can also make borehole bearing element. Aforesaid lock-down assembly represents either mechanical or hydraulic wall packer jointed to lower part of housing 18 of turbodrill 10.
EFFECT: higher reliability and simplified design.
FIELD: engines and pumps.
SUBSTANCE: invention relates to energetics, particularly to devices for receiving of electricity excluding burning of fuel for it and is a renewable energy source. Operation of power plant includes two processes: energy generation (EG) and water lifting (WL), do not matching in time, herewith WL is implemented ensured by electric power generated by wind-driven powerplant 19 (WDP). EG is implemented by hydraulic unit including hydraulic machine 5 in the form of hydroturbine, connected to electric machine 6 in the form of electric generator, installed in drill hole, in which operates hydropower water flow (HWF), hydraulic power of which transforms by hydraulic unit into electric energy and passed to original ground. HWF is formed by water flow from located higher water source 2, communicated to drilling well 1, and area of water withdrawal is communicated to it drainage area, located lower the water source. Drainage area can be underground collector, cavitated formation, absorption area 16, 17 or 18 and others, its volume is limited. Hydroturbine, electric generator and current communications channel 9 of downhole hydraulic unit with electrical switching transforming panel 11 at original ground are adapted for operation in downhole conditions. WL provides three versions of water lifting from absorbing area: borehole hydraulic unit is reversible hydraulic machine herewith hydraulic machine is implemented in the form of centrifugal pump, and electric machine in the form of electric motor, and for lifting of water it is used the sane drill well 1, for water lifting it is used special production well 24, by which it is over-drilled absorbing area and in which it is installed water-lifting pipe string 26 with perforated section 27 with submersible pump at its bottom end, for water lifting there are used pumping wells 34 and 35, drilled up to absorbing areas 17 and 18 and water-lifting wells 53 and 54, by which there are over-drilled absorbing areas 17 and 18.
EFFECT: creation of nuclear power plant, allowing wide range of application conditions.
3 cl, 6 dwg
FIELD: power engineering.
SUBSTANCE: pumped storage plant on plain streams comprises riverbed hydraulic power units, including axial pumps, which are rotated by riverbed water wheels via multipliers. Riverbed hydraulic power units serve for filling of an upper accumulating pond made in the form of a water reservoir with dam walls along the perimeter. Upper and lower accumulating ponds are connected to each other by discharge pipelines with pumps-turbines in the lower part connected mechanically with electric motors - generators in a turbine room. The upper accumulating pond covers a river bed by half.
EFFECT: prevention of flooding of plains and land plots, free navigation and fish passage along entire length of a river, increased depth of a fairway and higher speed of water flow.
5 cl, 11 dwg
SUBSTANCE: group of inventions relates to accumulating electric power plant, as well as to a method of energy accumulation. Pumped power plant includes at least one first and separated from second accumulating tank (11, 12), one pipeline (17, 18) of pumped gas, which is laid in first and second accumulating tank (11, 12) and which is connected with power and/or working machine pumped gas power plant or can be connected via switched valves and device (13) adapted to control expansion of pumped gas (4, 6) of one accumulating tank (11, 12) transfer expanded pumped gas into another accumulating tank (11, 12). Power and/or working machine (21, 22) of pumped gas is configured to generate specified pressure of pumped gas (4, 6) of various size in first and second accumulating tank (11, 12). Pumped power plant includes expansion machine injected gas to recoil energy to power supply network only by means of expansion of pumped gas.
EFFECT: group of inventions is aimed at effective accumulation of large amounts of energy.
7 cl, 2 dwg
FIELD: power industry.
SUBSTANCE: river hydro wind power plant includes the hydraulic structures: 1 dam, shut-off valves 4, hydro turbine 5, hydrogenerators of AC 6, wind turbines 9 and centrifugal pumps 7, the control units 12 of the maximum and minimum voltage for controlling the number of operating pumps 7. The shut-off valves 4 provide the required concentration of the water flow and height creation. Hydrogenerators 6 convert the power of moving water into the electrical power. The wind turbines 9 and pumps 7 provide the water lift from the downstream 3 to the upstream water 2. To transfer the mechanical power from the wind turbines 9 to the centrifugal pumps 7 the electrical transmission of the direct current is used.
EFFECT: increase of the annual electric power production and reduction of its cost.
FIELD: machine engineering.
SUBSTANCE: hydrostorage system includes working mechanisms that transform movements of various nature into operation of individual high pressure pumps pumping water from natural reservoir into impoundment at a level higher than the level of the natural reservoir, as well as a device for converting pressure of water flowing via water pipeline from the impoundment into consumption energy for production of useful work. The system is equipped with tanks placed on the bottom of the impoundment and communicated with pumps that are capable of pumping high pressure water into said tanks and which are equipped with pressure accumulators to normalize the pressure therein and a buffer tank at the bottom of the water pipeline located below the impoundment and above the level of natural reservoir and equipped with pressure accumulators to protect water pipeline and working mechanisms for pressure take-off from the hydralic impact.
EFFECT: increased operational reliability and energy efficiency.
FIELD: machine building.
SUBSTANCE: proposed machine comprises cylindrical housing 1 accommodating two blades dividing said housing into four closed chambers and synchronisation mechanism composed by shaft 9 with solid spider offset from rotational axes of said blades. Spring-loaded shafts 10 with rollers 12 at their ends are fitted through holes in said blades. Discs 11 made integral with said shafts are arranged at the centre of said shafts. Attachment of shafts 10 with rollers 12 in contact with spider is executed by fitting the latter at two supports in blades. Discs 11 are shaped to square prisms with rounded vertices of rectangular faces whereat needle bearings are set and locked against axial shifts. Two split rings are fitted in grooves of said faces on both sides of the prism. Two covers 15 are arranged to prevent radial displacement and shaped similarly to square prism and locked against axial displacement by split rings fitted in the grooves of spring-loaded shaft 10.
EFFECT: decreased specific load and friction forces between contact surfaces.