RU2525776C1 - Micro run-of-river plant - Google Patents

Abstract

FIELD: power engineering.

SUBSTANCE: run-of-river micro station comprises hydraulic turbine with blades 1, generator 7 fitted at pontoon 8 with anchor pole 9. Diverging blades 1 are curved in conical screw line or in conical logarithmic spiral. Front ends 2 of blades 1 bent through 90 degrees are secured inside hear case 3 at shaped bush 4. Rear ends 5 of blades 1 are secured to spider 6.

EFFECT: fast-assemble-disassemble portable run-of-river plant.

3 cl, 4 dwg

Description

The invention relates to hydropower and is intended to provide electric power to the camps of geologists, hunters, fishermen, autonomous tourists and is portable.

The invention relates to hydropower and serves, in particular, to convert the energy of riverbed river flows into electrical energy.

Small and micro-hydroelectric power stations with a power of 1 ... 5,000 kW for pressures of 2 ... 400 m with propeller, diagonal, axial, radial-axial, bucket turbines are known [http://ovis.khv.ru/index...]. Also known are sleeve micro-hydroelectric power plants Luch with a capacity of 1, 2, 4, 10 kW and INSET with a capacity of 10, 15, 20, 50, 100 kW. [http://mnpc2020.ru/...]

The disadvantage of such hydropower plants is the need for a large difference in elevation or the construction of a dam.

The installation has a complex chain drive and low reliability.

A device for using the energy of the current medium, comprising a housing, a hydraulic turbine and a volumetric pump equipped with flow accelerators, is held in the channel stream by a vertical rod by means of an arm (see RU 2392485 C1, 06/27/2010).

The device is difficult to manufacture and operate, delivers water, does not generate electrical energy, is not portable.

A known design of a blade turbine for using the energy of a water stream in a fixed flooded state in a moving stream of water (ebb and flow). The blades in the form of an extended double screw are mounted on the shaft along the moving stream. The same design is proposed to be used for the use of wind energy, having adapted it for installation in the air stream. (see JR 2009234555 A, 10/15/2009)

This device is difficult to manufacture and operate, does not have mobility.

A known hydraulic unit for using the energy of a water stream, consisting of spiral blades stopped along the oval body and spaced from the body in the end part. The unit is in suspension with minimal buoyancy. Concentration of the flow is carried out using an external screen. The blade turbine is connected to the support through a hinge and an energy converter with a multi-link shaft (see RU 2061185 C1, 05.27.1996) (prototype).

For this unit, it is difficult to permanently install an energy converter - an electric generator and a complex multi-link torque transmission system.

The objective of the invention is to develop a portable, quick-detachable, lightweight and used on small rivers and streams of a channel microhydroelectric power station.

The technical result is achieved by the fact that in a channel microhydroelectric power station (micro-hydroelectric power station) containing a hydraulic turbine with blades, according to the invention, the generator is mounted on a pontoon with an anchor pole, and the expanding blades are made curved along a conical helical line or along a conical logarithmic spiral, the front ones are bent by 90 ° the ends are fixed inside the head cover on a figured sleeve, and the rear ends on the crosspiece.

In addition, the rotation is transmitted from the hydraulic turbine to the generator by a flexible shaft mounted inside the casing in the form of a hose and the end of which is rigidly fixed inside the cowl in a spherical washer with a conical hole using the corresponding conical pin.

In addition, the leading edges of the blades and crosses are made sharpened.

Figure 1 shows a side view of the channel micro-hydro; in Fig 2 - fixing the flexible shaft in the head of the hydropower unit; figure 3 is a rear view of the blades of the hydropower unit with the removed cross; figure 4 - fixing the front ends of the blades.

The channel micro-hydroelectric power station consists of a quick-assembled hydraulic turbine, consisting of blades 1 curved along a helical conical or conical logarithmic spiral, the front bent ends of which 2 inside the casing 3 of the head are fixed on a figured sleeve 4 with a central hole, and the rear ends 5 on the crosspiece 6. The multi-pole DC generator 7 is mounted on the pontoon 8 and is movably connected with the vertical anchor pole 9. The shaft of the rotor of the generator with the help of a flexible shaft 10 mounted in the stationary casing 11 in the form of a hose is connected to the head g idroturbines and secured with a spherical washer 12 with a conical hole 13 and a conical pin 14.

The details of the hydraulic turbine are made of a polymer composite material, for example carbon fiber, the fixing material is stainless, the blade blade expands to the rear. The pontoon is wood, durable foam or an airtight container for parts and assemblies of micro-hydroelectric power stations.

After arriving on the river bank, a hydraulic turbine is collected, a suitable place is found in the river channel, a pole 9 is made, which is driven into the river bottom, a pontoon 8 is made, a flexible shaft 10 of strong polymer material is connected to the generator rotor shaft, the flexible shaft is placed in the hose 11, front the end of which is fixed rigidly on the pontoon 8, and the rear is free, and they set up camp. The water flow rotates the hydraulic turbine, the rotation is transmitted by the flexible shaft 10 to the rotor of the multi-pole DC generator 7, and through the inverter the generated electric current is supplied by cable to the consumers. In a stationary installation, the battery serves as an intermediate element between the generator and the inverter. The use of a protective hose on a flexible shaft and sharpening the leading edges of the blades and crosses prevents the winding of vegetation.

The developed micro-hydroelectric power station is lightweight, portable, quick-detachable, and allows you to comfortably settle down on the banks of rivers.

Claims (3)

1. Channel microhydroelectric power station (micro-hydroelectric power station), containing a turbine with blades, characterized in that the generator is mounted on a pontoon with an anchor pole, and the expanding blades are made curved along a conical helical line or along a conical logarithmic spiral, the front ends bent by 90 ° are fixed inside head cover on the figured sleeve, and the rear ends on the cross. 2. The channel micro-hydroelectric power station according to claim 1, characterized in that the rotation is transmitted from the hydraulic turbine to the generator by a flexible shaft mounted inside the casing in the form of a hose and the end of which is rigidly fixed inside the fairing in a spherical washer with a conical hole using the corresponding conical pin. 3. Channel micro-hydroelectric power station according to claim 1, characterized in that the leading edges of the blades and crosses are sharpened.

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