Tidal power plant
(57) Abstract:The invention is intended for use in hydropower, particularly in tidal power plants. The installation includes two pairs installed on the bottom of the supports, fixed on them with the possibility of rotation of the horizontal shaft kinematically connected with the generator and located underneath the shaft on the water surface is a flat float, attached to the lower Central part with a flexible element to the bottom, on the upper Central part of the float is installed, the vertical hour, the upper free end of which is made in the form of a U-shaped fork, loosely embracing the shaft and on the inner surface of the U-shaped fork deposited layer of rubber, and on the cylindrical surface of a steel shaft in the place of contact with the fork made the knurling. The design provides continuous operation with periodic change in the direction of the tidal waves. 4 Il. The invention relates to hydropower and can be used, in particular, tidal power plants.Known construction undertow engines, including radial rods and the title of hydropower plants. M - L: SEI, 1955, S. 225/ or blades mounted on the rods still have the shape of a wedge and is supplied from its inception grooves /and see.with. The USSR 1105683, CL F 03 13/12, 1984/.However, these structures are characterized by considerable complexity, large size and limited scope.Also known wave power installation comprising a partially liquid filled floating body located therein is a flat float, the Central part of which the edges are connected by flexible elements respectively with the bottom and upper part of the body, as well as PTO generator /and see.with. The USSR 1260557, CL F 03 13/12, 1986/.The disadvantages of the known devices is the complexity of the design, relatively low efficiency, very limited scope, and more importantly, the instability of the transmission torque from the float on the shaft through a flexible elements in non-stationary wave perturbations.The closest device to the same destination to the claimed invention on the totality of symptoms is the wave power installation comprising a support, a generator and podsoednineny floats, the centers of symmetry of which are in the same perpendicular to the shaft plane /and see.with. The USSR 1208298, CL F 03 In 13/14, 1986/ and adopted for the prototype.For reasons that impede the achievement of specified following technical result when using the known device, taken as a prototype, are of considerable complexity and size of the device, the impossibility of its use in the case of a periodic change of direction of the waves, characteristic of tidal power plants, i.e. the limited scope of the known device.The invention consists in creating designs tidal power plant, providing continuous intensive rotation of the output shaft of the electric generator when the periodic change in the direction of surf /roll - rollback/ due to the formation at different periods of disturbing influences acting on the shaft unidirectional traction force of sliding friction.The technical result - the simplified design, reduced size and increased functionality of the device.This technical result in the implementation of the invention is achieved by the fact that h is th at them with the possibility of rotation of the horizontal shaft, kinematically connected with the generator and located underneath the shaft on the water surface is a flat float, attached to the lower Central part with a flexible element to the bottom, the peculiarity lies in the fact that on the upper Central part of the float is installed, the vertical hour, the upper free end of which is made in the form of a U-shaped fork, loosely embracing the shaft, and the mutually contacting surfaces of the shaft and the fork are made of materials with high friction sliding over each other.The invention is illustrated by drawings, where Fig.1 schematically shows a tidal power plant, General view; Fig.2 is a left side view of Fig.1; Fig.3 is a cross section along a - a in Fig.1 when the roll of the surf /sea side/ of Fig. 4 is a cross section along a - a in Fig.1 when the rollback surf /coastal/.The device comprises two pairs installed on the bottom of the 1 near the shore 2 poles 3, oriented in each pair at an angle to each other, mounted on poles 3 with the possibility of rotation of the horizontal shaft 4, kinematically connected with a toothed wheel 5 generator 6, also mounted on poles 3, are placed through a flexible element 8 /rope/ to the bottom 1. At the top center of the float 7 installed vertical column 9 of rectangular cross section, the upper free end of which is made in the form of a U-shaped fork, loosely embracing the shaft 4, and the mutually contacting surfaces of the shaft 4 and the fork are made of materials with high friction sliding over each other. In the specific case on the inner surface of the U-shaped fork caused the rubber layer 10, and the cylindrical surface of a steel shaft 4 in the place of its contact with the plug 10 is made of a special pipe 11, which increases the coefficient of friction of steel on rubber to the amount of sliding friction materials cast iron-rubber 0.7 to 0.8.The operation of the device is as follows.When the roll of the surf from the sea to the shore/ float 7 /see Fig.3/ with stand 9 is shifted toward the coast 2. At the same time the water level at the coast 2 rises and the float 7 with a rack 9 moves upward. This inner U-shaped surface of the plug 10 with his left in Fig.3 part is pressed to the shaft 4, and simultaneously hour 9 moves upward, resulting due to torque forces of sliding friction shaft 4 bramae what I plug 10 is pressed to the shaft 4 of the right part, and due to the motion of the rack 9 with a float down the shaft 4 is again imposed clockwise rotation. Periodic forward - recoil of the waves causes continuous intense unidirectional rotation of the shaft 4 of the PTO, which actuates a generator 6.It is obvious that the proposed design is extremely simple, compact, provides significant efficiency and stability convert the energy of the waves into electrical energy, has a wide functionality. Its performance is virtually unaffected by the presence of various extraneous disturbances, the presence or absence of wind, sea state. The design is practically not sensitive to manufacturing errors, Assembly, i.e. does not lose health when the slopes and biases of the float, the deviation from the vertical position of the rack with a fork, and the like. Tidal energy installation comprising two pairs installed on the bottom of the supports, fixed on them with the possibility of rotation of the horizontal shaft kinematically connected to a generator, and the float, wherein the float is made flat and is located underneath the shaft on the surface of Verhnij the Central part of the installed vertical hour, the upper free end of which is made in the form of a U-shaped fork, loosely embracing the shaft and on the inner surface of the U-shaped fork deposited layer of rubber, and on the cylindrical surface of a steel shaft at the point of contact with the fork made the knurling.
FIELD: power engineering.
SUBSTANCE: invention is designed for conversion of wave energy into electric energy. Proposed converter contains mechanically coupled fixed post, float chambers, frame, shaft, step-up gear and electric generator. Moreover, converter additionally contains relatively interacting second shaft, first and second gears and at least two motion converters. First and second gears are fixed on corresponding shafts and engage with each other. Each motion converter has vertical rod installed for vertical vibration on upper end of which first block is installed, and on lower end, third sprocket engaging with first and second float chambers. First and second overrunning clutches with sprockets are installed on shafts and they engage through first and second chains with third sprocket.
EFFECT: increased efficiency.
8 cl, 7 dwg
FIELD: power engineering.
SUBSTANCE: proposed plant is designed for converting energy of waves into electric energy. Proposed plant contains vertical support secured on bottom, rocking rod installed on support for rotation around axis of support, float secured on one of rod ends. Float is provided with intake bottom hole and outlet top hole, both provided with remote controlled valves, and electric generator. Upper end of support remains under water at any possible magnitudes of waves. Wave magnitude sensor is connected with remote controlled valves, float is connected to pneumatic line connected with pressure source, rocking rod is connected with pump which is connected by pipeline with accumulator of hydropotential energy on shore, electric generator is located on shore and is coupled with hydraulic turbine connected with accumulator of hydropotential energy. Plant changes to safe mode of operation owing to filling of float with water at excess of magnitudes waves determined by corresponding wave magnitude sensor.
EFFECT: provision of reliable and long operation.
9 cl, 3 dwg
FIELD: engines and pumps.
SUBSTANCE: device exploiting the wave energy incorporates a support with openings for water overflowing and a frame furnished with storm pumps, the extreme of which, incorporating discharge valves, communicate via a pipe with a receiver and curvilinear deflector connected to the pumps rods, the deflector being made in the form of a float with its concave surface facing the incoming wave, a balancer arranged opposite to deflector on the frame mounted to rotate about a horizontal axis laying between the balancer and deflector and a working pump fitted on the support with its rod coupled via transfer mechanism with the frame. The support front incorporates a wave killer made in the form of a prism, its apex directed towards the wave, and arranged to vertically move on along the support. The wave killer height makes half the height of the support. The medium storm pump has a branch pipe communicating via the pipe with the receiver and used a the deflector pusher. Storm pumps incorporate openings allowing the piston back free stroke.
EFFECT: simpler design and higher reliability.
FIELD: engineering industry.
SUBSTANCE: device can be used in water power engineering. Closed floating casing is installed on supports so that it can rotate. To inner surface of the casing attached are solenoids wherein located are ferromagnetic pins. Rod is located inside the casing and is connected with ferromagnetic pins. Casing's rotation axis is located at an angle to rod axis. Rod is installed on rollers and spring-loaded on both ends. Casing is equipped with current-collecting elements and vane propeller.
EFFECT: providing the specified value of travel and uniform speed of movement of ferromagnetic pins in solenoids at various wave amplitudes using wave advance energy.
FIELD: engines and pumps.
SUBSTANCE: invention is related to hydraulic engineering. Wave power plant comprises body placed on supports, solenoids fixed inside body and ferromagnetic rods installed in solenoids. Body is installed on shaft with the possibility of rotation. External surface of body is arranged as circular-cylindrical with blades in the form of double-threaded Archimedean screw and is equipped with current-collecting elements. Solenoids are arranged as annular, are oriented and fixed in planes that are perpendicular to shaft longitudinal axis. Ferromagnetic rods are arranged in the form of tore and are equipped with rollers. Length of body is accepted as equal to at least half of wave length.
EFFECT: provision of electric power generation stability.
FIELD: engines and pumps.
SUBSTANCE: invention is related to float pump units in power systems based on float pumps, in which water motion is used for transportation of gas, liquid and their combinations from one place to another. Float pump comprises float having controlled volume, which is arranged with the possibility of return displacement under effect of waves, piston installed with the possibility of sliding inside piston cylinder and connected to float. Piston is arranged with the possibility of return displacement in the first direction and second direction under effect of float motion. Piston moves in the second direction for suction of working fluid medium into piston cylinder and moves in the first direction for removal of working medium from piston cylinder.
EFFECT: creation of environmentally safe, highly efficient, low cost devices for power generation.
27 cl, 30 dwg, 4 tbl
FIELD: power industry.
SUBSTANCE: wave electric power station intended for being installed on or in the sea or lake, for power generation includes floating construction and at least one floating body 1 which is moved vertically in relation to floating construction and is connected to the aforesaid construction through power transmission device. Floating construction includes a deck which is supported in fact with vertical supports. Supports have a pontoon functioning as damper and adapted for being arranged below water level. Deck, supports and pontoon comprise the space within which floating body 1 or bodies are located. In fact, pontoons have square section with oblique angles and with width which is more than height so that the floating construction is essentially fixed relative to still water level.
EFFECT: increasing output energy of wave electric power station.
17 cl, 17 dwg
FIELD: power engineering.
SUBSTANCE: wave power plant comprises vessel with electric generator installed in it, rotor connected to the latter with vertical axis of rotation, with horizontal blades. Between the latter vertical blades are installed with serial alternation of vertical and horizontal ones. Blades are installed in plane of undisturbed surface of water so that the latter is plane of symmetry for them.
EFFECT: increased efficiency of wave power plant operation by increase of share of wave kinetic energy transformed by plant into mechanical energy of rotary shaft.
SUBSTANCE: system includes a number of generator units (4a-6c) located in sea and a number of switchgear (1a-1c) located in sea. Each switchgear (1a-1c) is connected with a number of generator units (4a-6c). According to the invention, the system comprises a number of primary intermediate stations (17a-17c). It also includes at least one secondary intermediate station (19). Each primary intermediate station (17a-17c) is linked with a number of switchgears, and each secondary intermediate station (19) is connected with a number of primary intermediate stations (17a-17c). In addition, the secondary intermediate station is connected with on-land electrical network. The switching device (192) is available to ensure connection with different locations (193, 194, 195) of electrical network.
EFFECT: creation of system which is technically and economically compatible for supplying power to common electrical network.
28 cl, 6 dwg
SUBSTANCE: wave electric station contains operating sections each represented as hollow straight four-sided V blocks, in cross section and in the form of rectangular. It is open from the bottom and linked with water medium. The above sections are installed lengthwise closely to each other. There are two open-end longitudinal windows in the top part of V-block, which form intake and pressure main lines and rectangular windows. The sections are located between vertical boards hung butt-to-butt inside two parallel lines punched into pile bottom.
EFFECT: increased power output from plant and simplified design.
3 cl, 9 dwg