Wave power station
(57) Abstract:Usage: for producing electric power at the expense of the resulting UPS and downs of the waves. The inventive Anoprienko camera with floats made in the form of glasses, the exposed end of which is submerged under the water level. The body is made in the form of platforms and floats G-shaped and is installed with the possibility of unilateral rotation on a horizontal shaft, placed in the glass. One ledge float longer or heavier than the other. All shafts are interconnected. Overdrive gearing connected with the shaft and the shaft of the air turbine overrunning clutches. The turbine shaft is connected to the generator. 3 Il. The invention relates to energy, particularly for electricity generation by energy from sea waves by a vertical rise and fall of waves.Known wave power plant (see the book Century. And. Marecek and S. P. Solovyov "Stepchildren of energy" from the series "Technique" N 5 in 1981 the publishing house "Knowledge" pages 35-40) in the form of a vertical pipe attached to the float and submerged open end into the water. The upper end of the pipe is closed. Vertical lifts waves the level of the free surface in true generator. When the recession wave through the atmospheric valve in the wave chamber is sucked into a new portion of air. So the process repeats with a periodicity equal to the period of oscillation of the water level 5-6 seconds.The main disadvantage of this wave power plant is relatively low power, "remove" 1 m2water, equal to about 1 kW at a sufficiently high wave.Known wave power plant containing a floating body with a generator, an air turbine and Anoprienko cameras with floats. The camera is made in the form of glasses, the exposed end of which is submerged under the water level. To increase the efficiency of each chamber is provided with an additional air turbine and a hydraulic pump connected with the float through the endless chain of transmission.The main disadvantage of this setup is the limited capacity associated with the slow rise of the float and the fact that the chain is backed by a limited buoyancy force on the float equal to half of the volume of the float because the weight of the float is 0.5. A large number of mechanisms and transmission devices complicate the installation and leads to significant power losses, reducing the effect of ispolzovaniya fact, that wave power plant containing a floating body with a generator, an air turbine and Anoprienko cameras with floats, this camera is made in the form of glasses, the exposed end of which is submerged under the water level, equipped with Overdrive gear and overrunning clutches, its body is made in the form of platforms and floats G-shaped and is installed with the possibility of unilateral rotation on a horizontal shaft mounted in the glass, with one of the projections float longer and heavier than the other, all the shafts are interconnected, which increases the gearbox is connected with the latter and the shaft of the air turbine through overrunning clutches, and the turbine shaft connected to the generator.In Fig. 1 is a perspective view of a wave power plant with the image of two voenoplennih cameras (generator not shown); Fig.2 and 3 are depicted separately Anoprienko cameras with different position of the l-shaped float: section a-a when the decline (Fig.2) and the cut-In when the rise of the wave (Fig. 3).On a floating platform 1 fixed Anoprienko camera 2, increasing the gear 3 and the air turbine 4, the shaft of which is connected with the shaft of the gear 3 by means of the overrunning clutch 5. Inside voenoplennih cameras 2 size and using ratcheting mechanism with one-way engagement of the fixed l-shaped floats 8 with the tabs 9 and 10, which is designed so that when the free overhang of the float on the shaft 6, the left and right part of the float 8 relative to the vertical plane 1-1 were unbalanced. This is ensured by the fact that the protrusion 9 is longer than the projection 10 (Fig.2 and 3), or for the same length of the projections 9 and 10 due to the fact that the mass of the protrusion 9 than the mass of the protrusion 10.Air cavity voenoplennih cameras 2 are communicated with the working cavities (not shown) of the air turbine 4 via duct 11, provided with check valves 12. For communication with the atmosphere when the recession wave wave camera 2 is supplied with atmospheric valve 13.Does wave power plant as follows:
When the recession wave (see level OF1-O1in Fig.2) the float 8 is a freely hanging position. While the elongated part of the ledge 9 outweighs the ledge 10 and the left side of the float 8 located below the axis of the shaft 6, the larger right side of the float. When lifting waves the water level in Anoprienko the camera goes out ABOUT1-O1to position ABOUT2-O2. When the float 8 (see Fig.3) is rotated (in this example, clockwise) with the rate of water level rise, and as we have committed to is that both tabs are at the top. When the float 8, ahead of the rotating shaft 6 comes into engagement with it through the ratchet mechanism and transmits torques acting on the float from the buoyancy of the water on the shaft 6 and, ultimately, on the shaft of the air turbine 4. When the recession of the waves when the water level starts to fall, the unbalanced part of the float with the tab 9 descends and rotates the float also clockwise. When the shaft 6 is connected with the shaft of the turbine 4, overtaking during the rotation of the rotation of the float 8, freeing it from engagement with the shaft 6, and float freely provides rotation to the original premises, is shown in Fig. 2. Overdrive gearbox 3 allows a permanent effect of torque on the shaft of the air turbine floats from 8 in the case of acceleration from the impact of compressed air in voenoplennih cameras.Describes the impact of floats on the turbine shaft complements the effects of compressed air in voenoplennih chambers to the turbine, which is carried out when the water level rises in voenoplennih cameras. Compressed air flows through the duct 11 into the working cavity of the turbine 4, creating a torque on the turbine shaft. When this atmospheric valve 13 is closed and the check valve 12 open is accommodated, providing a flow of air in the wave chamber.Thus, on the shaft of the air turbine 4 torque acts from the compressed air and float. When this torque on the float is of considerable importance in the total torque on the shaft of the air turbine.For example, when the wave height is only 1 m and float with the protrusions of 1 m length and 1 m 20 cm from the axis of the float section of the projections 9 and 10 of the float 1x1,5 m and a cross section Anoprienko camera 1,h,6 m, the buoyancy force on the float at the time indicated by the dashed line in Fig.3, is when the specific weight of water 1 t/m3: 111,51(ledge 10)+ (1,211,51) (lug 0) 1,5 + 0,92,4 tn.At this point of the rib 10 is balanced shaft 6 and on the float in this position will impact the point of the protrusion 9 of the float. This moment is when the shoulder is equal to half the length of the protrusion 9, i.e., 0.6 m,
0,9 x 0,6 0,54 TM
With further sharp turn (roll) of the float, when the protrusion 9 out of the water (to simplify calculations we neglect the moment created by the protrusion 9, although it is not yet fully emerged from the water and it continues to act the buoyancy force moment created by the protrusion 10 on the rotation angle of 0-90aboutat the shoulder, eminimalls speed of rotation (tumbling) float on average equal to n 2 turns in 1 C. Power N one Anoprienko chamber is at least 1 cycle
N kW where F is the ring strength, kg;
Vthe OCR.peripheral speed, m/s
vOCD6,28 m/s where d is the diameter of the geometric center of the protrusion 10.Circumferential force F is a projection of the buoyancy of the Pbacting on the protrusion 10, the tangent line to the circle of rotation of the geometric center of the protrusion 10, i.e., the radius of 500 mm
F Pbsin .The total power at the flip of a float 90aboutwill be expressed by the integral.N 9.2 kW given site Anoprienko camera S 2,h,6 3,68 m2specific power, additionally removed with 1 m2square water,
2.5 kW/1 cycle At a total loss of power on the shaft 6 and the gear to 0.85 gains power from the float device is
2,h,85 2,12 kW/ 1 cycle. Taking into account the period of water level fluctuations in Anoprienko camera 5-6 with the capacity gain in total for each Anoprienko camera in the middle
2,13:5,5 0,39 kW. Thus, the total power Anoprienko camera based on the use of compressed air power 1 kW 1 m2is 1,39 kW, i.e., increases by about 40% WAVE Amy with floats, this camera is made in the form of glasses, the open end of each of which is submerged under the water level, characterized in that it is equipped with Overdrive gear and overrunning clutches, its body is made in the form of platforms and floats - G-shaped and is installed with the possibility of unilateral rotation on a horizontal shaft mounted in the glass, with one of the projections float longer or heavier than the other, all the shafts are interconnected, which increases the gearbox is connected with the latter and the shaft of the air turbine through overrunning clutches, and a turbine shaft connected to the generator.
FIELD: wave-energy-to-electric-power conversion.
SUBSTANCE: proposed wave energy plant has supporting frame with vertical guides, float installed for vertical reciprocation that accommodates ratchet gears provided with coaxial central holes, shaft passed though these holes and fixed in supporting frame to laminar screw section whose top and bottom parts are twisted in opposition and contact ratchet gears disposed in cylindrical casing with through holes; it also has electric generator. Float is mounted for displacement along vertical guides and has inertial member disposed inside for rotation and displacement together with float; inertial member contacts inner surface of float casing through rollers. Cylindrical casing is joined with inertial member; electric generator is disposed within supporting frame and kinematically coupled through extensible joint between inertial member and drum installed for joint rotation with the latter and with gear transmission.
EFFECT: enhanced power output of wave energy plant generator.
1 cl, 1 dwg
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