CN2167209Y - Buoy type power generator used in stream - Google Patents

Abstract

The utility model relates to a buoy type power generator used in stream utilizing the energy of water flow for generating electricity. A columnar cylinder and a conical rotating buoy are sheathed concentrically in order to form an external pressure acceleration chamber, and accelerated water flow can flow through the tip end of an impeller blade in order to link the conical rotating buoy, a transmission shaft, a speed increasing mechanism, a generator and a water pump for generating electricity or pumping water. The depth of water immersion is changed according to the magnitude of load in order to implement stepless speed regulation. Dual drive systems are connected in parallel for use, and a double deck cutoff plate is arranged for increasing power output and keeping the stable operation of the utility model. The utility model having the advantages of convenient operation, favorable cleanness, stable speed regulation, large output power and multiple purposes for generating electricity and pumping water is suitable for rivers and streams, and working flow velocity is more than 1 meter per second ordinarily.

Description

Buoy type power generator used in stream

The utility model relates to a kind of floating-tube type flowing water power generation device that utilizes the mobile energy of water to generate electricity, and is suitable for using in the rivers and streams.It is the further improvement to existing floating-tube type flowing water power generation device.

In Chinese patent CN20 75 705U and CN21 12 701U, the inventor discloses two kinds of floating-tube type flowing water power generation device schemes.First kind of scheme provides a kind of floating-tube type flowing water power generation device of being made up of support, pillar buoy, impeller, transmission shaft, booster engine, generator; Second kind of scheme provides a kind of floating-tube type flowing water power generation device of being made up of support, square floating drum, impeller, transmission shaft, speed increasing mechanism, centrifugal sliding fork and manger board, generator, water pump.Above-mentioned two kinds of schemes all have characteristics easy to use.But, first kind of scheme make the voltage functuation of output bigger because of adopting manual step speed regulation; Second kind of scheme adopts vertical dash speed governing and makes its kick excessive and the more complicated conversion efficiency of structure is not high.

For remedying above-mentioned deficiency, the inventor is again that 92230890.X has submitted a kind of improved floating-tube type flowing water power generation device to Patent Office of the People's Republic of China with the application number, and it is made up of impeller sets, transmission shaft, support, speed increasing mechanism, generator, water pump and conical cavity floating drum, auxiliary float.This apparatus structure compactness, cleanliness are good, support stiffness has improved conversion efficiency greatly and further, but that the current part that this device converges flows through loss from root of blade is bigger, are unfavorable for improving to greatest extent conversion efficiency; Auxiliary float is set have been increased volume and has been unfavorable for effectively utilizing current; Conical cavity floating drum moulding difficulty is made troubles to use greatly.

Task of the present utility model is to avoid above-mentioned deficiency and a kind of further improved floating-tube type flowing water power generation device is provided.This device is compared with existing floating-tube type flowing water power generation device, form the speedup chamber because of adopting 13 concentric suits of column-shaped barrel 10 and taper rotation floating drum to place, impeller blade 16 is arranged on the outer of taper rotation floating drum 13, the current of acceleration flow through impeller blade 16 end slightly and improve conversion efficiency; Adopt two groups of same drive system and through cingulum 28 transmissions in parallel, increased output power and keep this device about stable; Two groups of intercepter plates 11,22 and 12.27 are set up and down have been increased this device and cuts the uplift pressure under the lotus condition and keep head and the tail stable at weight; 3 one-tenth double inclined planes of filter screen are placed has the characteristics of automatic discharge; Column-shaped barrel and taper rotation floating drum easy-formation and can protect leaf to change and support whole device and reduced unit volume makes it more become to improving and has more practicability.

Fig. 1 is the side-looking diagram of the utility model structure.

Fig. 2 is the diagram of facing of the utility model structure.

Fig. 3 is the diagram of overlooking of the utility model structure.

Fig. 4 is another embodiment's of the utility model structure a diagram.

Task of the present utility model is realized by following scheme: have column-shaped barrel 10, taper rotation floating drum 13 with one heart the position suit place and form external-compression type speedup chamber, two groups of impeller blades 16 are arranged on the outer of taper rotation floating drum 13, under the support of support 8.26, impeller blade 16 interlock tapers rotation floating drums 13, power transmission shaft 25, pass tooth 23, driving-belt 28, be communicated with driving cog 29, generator 31 and drive water pumps 35 runnings through hookup 34.

According to such scheme; embodiment of the present utility model as shown in Figure 1, 2, 3; 13 concentric suits of column-shaped barrel 10 and taper rotation floating drum are placed and are formed external-compression type speedup chamber; the length at column-shaped barrel two ends is greater than the length of taper rotation floating drum 13, to reduce the normal operation of current loss and protection gear cingulum 23,28.The maximum cross-section of taper rotation floating drum 13 is 0.4 to 0.5 times of column-shaped barrel cross section, and its tapering is between 20 to 30 degree, and the uplift pressure of this floating drum equals the total weight of this device.Column-shaped barrel 10 is set can be supported this device running and make impeller not be subjected to the influence of riverbed obstacle to make it have good cleanliness when flowing water is more shallow.In the middle rear end of taper rotation floating drum 13 outers two groups of impeller blades 16 are set and constitute the impeller-driven system.Impeller leaf 16 is bound up on to be embraced on the circle 17, and this armful circle and taper rotation floating drum 13 are fixed.The root of impeller blade is supported by taper rotation floating drum 13.The end slightly of the water impact impeller blade 16 that quickens and rotating, is communicated with another gears 29, generator 31 and drives water pumps 35 runnings through coupling piece 34 through cingulum passage 39,40 interlock taper rotation floating drum 13, transmission shaft 25, driving cog 23, cingulum 28.The tool face angle of prime impeller blade is between 35 to 45 degree; The tool face angle of back level impeller blade is between 28 to 35 degree.Install between impeller apart from 2 times that are not less than the impeller blade vertical length; The quantity of each impeller blade is not less than 6; The spacing of blade and column-shaped barrel inwall is 5 millimeters.Transmission shaft 25 is arranged on the centre bit of taper rotation floating drum 13 and fixes with it, and its two ends are respectively by axle sleeve 9,24, and support 8,26 and coupling ring 7 are fixing, and this circle connects mutually with the inwall of column-shaped barrel 10 head and the tail.Form speedup generating power and pumping water structure by driving cog 23, driving belt 28 another little teeth 29 of interlock.The speed increasing ratio of speed increasing mechanism is decided on the rotating speed that requires of water velocity and generator, water pump, generally gets 12:1,10:1 and 5:1, suitable water fail to be sold at auction speed be respectively 1.5 meters of per seconds, more than 3 meters and 5 meters.Gear 23,29 and cingulum 28 all adopt the synchromesh gear band.The intensity that connects other parts and reinforced tube 10 is for convenience established a reinforcement coupling ring 6,14,20 respectively at its head and the tail and outer, middle part.The utility model is made up of 2 groups of identical drive systems, in order to increase power output and keep this device about stable.Two groups of drive systems are under the equidirectional running, and its clutch end is by 28 triangular in shape compiling of cingulum.Column-shaped barrel 10,42 by be arranged on this cylindrical shell head and the tail and middle part up and down two groups of horizontal jointing plates 5,15,21 with strengthen coupling ring 6,41,14,43 and 20,44 connections.The base of generator 31, water pump 35 is supported by dunnage 19, and this dunnage is supported and be fixed on the middle part of horizontal jointing plate 15,21 by several supporting posts 18.Generator 31 adopts alternator, and its voltage is identical with civil power with frequency.Also can adopt the dc low-voltage generator under the specific condition.Generator makes every effort to consistent with the rotating speed of water pump, in order to exchanging and and using.Cause voltage functuation for overcoming surge impact, establish a flywheel 32 at the power intake of generator 31.Guard shield 30 can be protected the generator all weather operations.Side at little tooth 29 is provided with another little tooth 33 in order to incorporate the satisfied more powerful needs of the bigger drive system of another same apparatus composition into when needs increase power.Formed filter screen and be the double inclined plane placement by rack 4 and twine 3, the two ends of rack 4 are fixed on the middle part of horizontal jointing plate 5, and the centre of twine 3 is overhanged by rack 4, and this two ends are connect with reinforcement coupling ring 6,41.Bibeveled angle is being got rid of outside this device under the water impact voluntarily in order to drift between 30 to 45 degree.The spacing of twine 3 is generally got 10 to 20 millimeters.Down the two ends in angle cross section are provided with an intercepter plate 11,22 between column-shaped barrel 10,42, in order to stabilize and increase from beginning to end uplift pressure under the underloading condition of this device; And can cut down the fluctuation of speed that surge impact causes; The two ends in angle cross section are provided with another intercepter plate 12,27 between the column-shaped barrel 10,42, are operated on the water surface curve under fully loaded transportation condition in order to this device.The spacing of adjusting column-shaped barrel 10,42 can increase the captured area increase uplift pressure of intercepter plate 11,22 and 12,27.Up and down two groups of intercepter plates 11,22 and 12,27 and the angle of current be the 20--30 degree and place and connect with column-shaped barrel 10,42 or horizontal jointing plate 5,15,21.The captured area of last intercepter plate 12,27 is to go up 1/2 of angle between the column-shaped barrel 10,42, produces uplift pressure so that there is a passage to flow out behind this plate of water impact.

When implementing generating separately or drawing water, the output power of generator or water pump must not be greater than impeller shaft power sum; Implementing generating power and pumping water and time spent, the air horsepower sum of generator and water pump must not be greater than impeller shaft power sum.

Implementing generating power and pumping water and time spent, because of generator 31, water pump 35 coaxial interlocks, generator can make the load skew when load changes, that is: when generator 31 than under the light load running, the faster rotational speed of water pump 35 and obtain more high-power increase pumping load, also limited simultaneously the further raising of rotating speed, make generator under a light load running rotating speed a little more than rated speed.The pumping load that then can reduce only increases generated energy, forms relative constant speed speed regulating structure.

When independent enforcement is generated electricity, the speed governing task of generator 31 is realized by following scheme: the back traction angle that forms of middle part connection of coupling ring 6,41 is strengthened at the two ends of steel wire 1,2 respectively outward with riverbed supporter and column-shaped barrel 10,42 stems, this cylindrical shell group its center line under water impact makes every effort to be in line with wire-shaped, when impeller blade 16 than under the light load, faster rotational speed reduces the resistance of current, the whole device of taper rotation floating drum 13 floating holders rises and the inflow of the impeller blade that reduces to flow through, and its rotating speed is descended; Otherwise then make 13 sinkings of taper rotation floating drum increase the inflow of the impeller blade of flowing through and rotating speed is raise.So feedback can make impeller sets all locate optimal operational condition when carrying arbitrary load and implement stepless speed regulation.

Another embodiment of the utility model structure as shown in Figure 4, the difference of this structure is: the rotation floating drum is made up of nun buoy 13, pillar buoy 45, transmission shaft 25 is supported by axle sleeve 36, pillar buoy 37, dunnage 38, and this dunnage is bound up on the inwall of column-shaped barrel 10.Impeller blade 16 still is arranged on the outer of conical shell 13, column-shaped barrel 45.Adopt such scheme to help simplifying structure and rotate the sealing of position with lubricated with being convenient to.

The utility model adopts external-compression type speedup chamber and two driving is in parallel uses, and has improved conversion efficiency, has increased power output and has made this device have good stable, is suitable for various current and uses, and the flow velocity of work is at per second more than 1 meter usually.

Claims (8)

1, a kind of floating-tube type flowing water power generation device that utilizes the mobile energy of water to generate electricity, have column-shaped barrel 10, taper rotation floating drum 13, two groups of impeller blades 16 are set in the outer of this floating drum, support second line of a couplet mantle shape rotation floating drum 13, transmission shaft 25, driving cog 23, cingulum 28 at support 8,26 are communicated with driving cog 29, generator 31 through 35 runnings of coupling piece 34 interlock water pumps, it is characterized in that: 13 concentric suits of column-shaped barrel 10 and taper rotation floating drum are placed and are formed external-compression type speedup chamber, and the current of acceleration can flow through from the end slightly of impeller blade 16.

2, by the described floating-tube type flowing water power generation device of claim 1, it is characterized in that: taper rotation floating drum can be made up of nun buoy 13, pillar buoy 45, and its transmission shaft 25 is by axle sleeve 36, fixedly floating drum 37 and dunnage 38 are supported.

3, by claim 1 or 2 described floating-tube type flowing water power generation devices, it is characterized in that: steel wire 1,2 and column-shaped barrel 10,42 connect formation traction angle, can make this cylindrical shell group oscilaltion under water impact.

4, by claim 1 or 2 described floating-tube type flowing water power generation devices, it is characterized in that: generator 31, water pump 35 coaxial interlocks form relative constant speed drive.

5, by claim 1 or 2 described floating-tube type flowing water power generation devices, it is characterized in that: be provided with one in a side of driving cog 29 and incorporate gear 33 into.

6, by claim 1 or 2 described floating-tube type flowing water power generation devices, it is characterized in that: constitute two groups of same drive system and by cingulum 28 transmissions in parallel by column-shaped barrel 10,42.

7, by claim 1 or 2 described floating-tube type flowing water power generation devices, it is characterized in that: two groups of intercepter plates 11,22 and 12,27 are set respectively in column-shaped barrel 10,42 angle cross sections up and down.

8, by claim 1 or 2 described floating-tube type flowing water power generation devices, it is characterized in that: the double inclined plane placement is made of and is to filter screen rack 4 and twine 3.

Images