Wave electric power station

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical power engineering, particularly to electricity generating installations which convert energy of sea waves. The wave electric power station contains pivotally connected floats of a profiled floatation raft with a dynamic anchor, freewheel clutch and torque-limiting clutch. The electric power station is fitted with a self-adjusting bubble breaker, which includes a pneumatic blower driven by the former, starting from the head, floats of the profiled floatation raft, air pipe and an air-distribution pipe, placed on the arms of the dynamic anchor in the water space in front of the head float, and a device for automatic control of air release, for example in form of a stop valve activated by floats. Pivotal connections of the first floats are provided with pneumatic shock-absorbers, for example combined with pneumatic blowers. Drive wheels of these floats are linked with the latter through combination sleeves, which comprise freewheel clutch and torque-limiting clutch.

EFFECT: invention is aimed at designing a wave electric power station, capable of stable operation in any field operating conditions.

4 dwg

 

The invention relates to the field of electric power industry, in particular to electricity generating plants, which convert the energy of ocean waves. A number of such power plants, installed with a certain step along the coast, along with the production of electricity the standard settings will reliably protect the coast from the most destructive waves.

There are a number of converters wave energy into electrical energy. Among them, the efficiency of selection of wave energy are considered the best Salter's Duck and a raft of Cockerell. However, the first of these power plants are not adapted to the orientation of the wave front, while the second to the length of the latter. The main drawback of these converters is that their practical implementation is associated with neokupaemyj capital and operating costs associated with unacceptably large energy losses on the transmission from the recipient device to the shaft of the generator.

These shortcomings hinder the wide application of these power plants (Whakarongo. Converting ocean energy, L. "Shipbuilding", 1986, p.140-142). Although the idea of using the system associated floats in the form of a contour of the raft Tsiolkovsky is the most promising and wave energy, and engineering protection of coastlines from wave erosion (see ibid., s).

The famous "point" conversions the founders of wave energy into electricity using different kinematic transmission, among which Wave energy machine" (U.S. Pat. EN 2141057, CL 6 F03 13/20), "Float wave electric power station" (U.S. Pat. EN 2037642, CL 6 F03 13/16), as well as power plant, protected by patent RU 2221933, CL F03 13/18 "Way to use the energy of the sea waves and device for its implementation". Common deficiencies of these devices should be attributed to the low efficiency in the selection of wave energy, the imperfection of the mechanism of its transmission to the shaft of the generator, the frequency instability of its rotation, and hence the parameters of the generated electrical energy. Moreover, they all are unable to considerably reduce dangerous to the shores of the sea.

Known Wave power plant", was developed in JSC "Belgorod power machine building plant" (U.S. Pat. EN 2147077, CL 7 F03 13/16)containing a frame with a platform and floats, United by a block of bevel and cylindrical gears and gear PTO shaft on which you installed the flywheel and clutch for connecting to a generator. It has floats attached to the rods of unequal length with a common axis and having the shape of a triangular prism with exposed faces, independent of their relative movements, and the space between the side floats are made with enabling free passage of the wave on the average float.

With the availability of the valuable ideas dispersion of floats, perceives as potential and kinetic energy of the waves, in the direction of their movement, as well as an independent force transmission rods on a common shaft with the flywheel, this setting has a number of disadvantages: it is rigidly connected with the base fixed to the seabed, therefore, its performance strongly depends on the direction of wave movement. This is complicated by its installation in deep water; the number of floats is clearly insufficient for uniform extraction of energy from waves during their period, with more than a weak wave that comes after a strong not able to effectively influence the kinematic mounting system due to the lack of speed lift floats; even satisfactory energy work flywheel is not able to maintain the rotational speed of the rotor of the alternating current generators in a normalized range; the design of floats does not guarantee their efficient work during strong sea, when in the coastal zone (shallow water) the leading edge of the wave rises steeply and even tipped, and finally, installation, designed for use in coastal zones, are not able to protect the coast from wave erosion.

The closest analogue of the claimed device (prototype) is a wave power plant (WPP) patent RU 2313690 F03 13/20, which contain what it articulated the United floats contour of the raft with dynamic anchor, freewheel and slipping clutch, the kinematic system with General iterative cardan shaft connected power transfer with each float, and with the generator through the flywheel and the device to stabilize the frequency of rotation.

The disadvantage of this wind farm is the lack of effective protection against today's most dangerous waves, which requires its equipment automatic printablepage, followed by a weakening of the protection functions, and weak protection of power transmission from the beyond and the impact of dynamic loads - even with a slipping clutch at the end of the propeller shaft. Moreover, the buffer limiting relative rotation of the floats do not exclude impact on their swivel.

The task of the claimed invention is to provide a wave elektrostantsii, able to work in any real operational conditions.

This object is achieved in that the wave power plant, containing swivel United floats contour of the raft with dynamic anchor, clutch and slipping clutch according to the invention is equipped with self-adjusting pneumatic breakwater, including pneumonanthe driven by the first, counting from the head, floats contour of the raft, air duct and air is raspredelitelnoi pipe, posted on consoles dynamic anchors in the water space in front of the head float, and the automatic control device air vent, for example, in the form of a valve actuator from the buoys, while the swivel first floats equipped with pnevmoaeratorov, for example, combined with pneumosintes and drive wheels these floats are connected with the latter through a combined clutch comprising a freewheel and a slipping clutch.

Equipment wind farm self-adjusting pneumatic breakwater, selectively affecting approaching her waves of different heights, can partially suppress them to a safe level and then converting the remaining energy generator and pneumonocytes.

Installation of pnevmoaeratorov hinge connections floats not only eliminate shock loads at extreme corners of their mutual rotation, but will allow you to use the energy absorber when it is reverse.

Equipment driving wheels floats coupling limit of time will eliminate harmful stress on the transmission of the wind farm.

To clarify the essence of the invention is represented by the following drawings: figure 1 shows a General view of the wind farm; figure 2 is a longitudinal section of the head of the float along the axes of the cylinders, located near his Bo the new walls; figure 3 - type "A" on a combined clutch (drawing in figure 2); figure 4 - cross section B-B ' of the coupling shown in figure 3.

The inventive wind farm consists of floats 1 (figure 1), in the United contouring raft, equipped with known (from the description of the wind farm - the prototype for a stalemate. EN 2313690) transmission with flywheel and generator, as well as dynamic anchor. The first (counting from the head) floats 1 is equipped with pneumosintes 2 (figure 2), such as piston, with vozdushniye pipes 3 and valves: inlet 4 and outlet 5, the duct 6 connected to the receiver, represented in this case by the head float and located on consoles installed 7 dynamic anchor transverse perforated air distributing pipe 8 with shut-off valve 9 associated with the sensors of the wave height in the form of, for example, 70 buoys with adjusting balances 11; furthermore, the said first floats 7 is equipped with a coupling limit of time, containing a driving disk 72 (figure 3 and 4), the clutch disc 13, preloaded, for example, the Belleville spring 74, the friction box 15, and is structurally integrated with a freewheel clutches in combination clutch through which the body of the float is kinematically associated with each drive wheel.

Declare wave power plant works. In normal conditions, when the wave height will not exceed ishaat the calculated value, the wind farm is virtually indistinguishable from its prototype: longitudinal contour of the raft, consisting of floats 7, repeats the profile of the moving waves, damped as the selection of its energy, causing the speed of the relative rotation of adjacent floats 7 in the direction from the head to the machine is reduced, which is compensated by changing gear ratio in the transmission links. This ensures that the selection of energy all the floats, the speed of rotation of which lags behind the rate of change of the profile passing beneath the waves. With such intensity of emotion stops buffers the floats 1 even first pair comprising the head, do not reach the stem of pneumonanthe 2, and effort in the transmission remain in the current range.

With growing excitement stops buffers in the first couple of floats 1 begins to affect the spring-loaded rods of pneumonanthe 2, and the atmospheric air through an intake pipe 3 and the valves 4 and 5 is supplied into the inner space of the head float receiver connected to the duct 6 installed on consoles 7 air-distributing pipe 8. While the sensors of the height of the wave - buoys 10 configured using balances 77, monitor the height of the incoming waves and in accordance with it is fed through valves 9 required volume of air (small jets) in the water space is about before the raft of the power plant. The resulting water-air mixture due to the low density and good compressibility effectively reduces wave to a safe level (New Polytechnical dictionary, M. 2003, Art."Breakwater" on p.83, Il. on p.84). If rafts are installed with a certain step, you need to maneuver associated with changing the direction of the waves, the air-distributing pipe with a length that exceeds in this case, the width of the raft, capable of - and even more - quenching wave between the rafts, i.e. on the way to protect the coast, through the appropriate distribution of the air flow.

In the case of a particularly sharp impact on the head float steep waves or heavy object floating residual energy when it is turned accumulates in pneumohemothorax representing discussed above piston device, compressing the air in the closed space (if already blocked exhaust valves 5). Such absorbers eliminate the shock load on the swivel floats and return stored their energy during the reverse rotation of the latter.

Any congestion associated with the abrupt acceleration of the rotation of the floats are removed couplers ultimate moment at the beginning of power transmission, which ensures its protection from damage and heavy wear. The value of the limit moment is definitely aetsa the force of the spring 14 and the coefficient of friction of the working surfaces of the disks 12 and 13 in pairs with a friction material insert 15.

Equipping wave power plants described devices will completely solve the problem of protecting themselves WES and located behind them coast in almost any extreme situations. Also discussed here is the idea of using a float pneumonanthe for air supply pneumatic breakwaters will find wide application in engineering and the protection of coastal and marine structures.

Wave power plant containing swivel United floats contour of the raft with dynamic anchor, clutch and slipping clutch, characterized in that the power plant is equipped with self-adjusting pneumatic breakwater, including pneumonanthe driven by the first, counting from the head, floats contour of the raft, the duct and the air-distributing pipe, placed on the consoles dynamic anchors in the water space in front of the head float, and the automatic control device air vent, for example, in the form of a valve actuator from the buoys, while the swivel first floats equipped with pnevmoaeratorov, for example, combined with pneumosintes and drive wheels these floats are connected with the latter through a combined clutch comprising a freewheel and a slipping clutch.



 

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