Turbine installation

 

The invention is intended for use as tidal power and low-pressure river hydropower plants. The device contains at least two turbines, horizontal coaxially installed in the conduit, and one generator. Turbines are made orthogonal cross-flow, their shafts are oriented transversely of the conduit installation, which is divided at least one calf at the turbine conduit, and connected to the block kinematic link, which is placed in a sealed cavity formed in the body of a bull. As a unit of kinematic connection used generator made with through-shaft connecting the turbine shafts. The unit of kinematic connection can be made in the form of added multiplier with continuous low-speed shaft connecting the turbine shafts. The unit of kinematic connection may also include a generator made with through-shaft, and two inputs of the multiplier, while the high-speed shaft of the multipliers are connected to the shaft of the generator, and the slow - speed shaft of the respective turbine. Installation can be made in the form with its own buoyancy units hydroelectric facility. Technique:always;">

The invention relates to the field of hydropower construction and can be used in the construction of tidal power plants (TPP) and low-pressure river hydropower plants (HPP).

Known turbine installations containing installed in conduit orthogonal turbine shaft which is perpendicular to the longitudinal axis of the conduit and kinematically connected with the shaft of the generator [1], [2].

The lack of plants [1] and [2] to the practical impossibility of combining multiple turbines in a common unit to work on one generator, which is connected, in particular, with the vertical position of the shaft of the turbine.

Known selected as a prototype turbine installation comprising, two turbines, horizontal coaxially installed in the conduit, and one generator [3].

The device prototype turbine shafts coaxially oriented along the conduit and connected to the multiplier, placed in a sealed capsule in the center of the conduit with a vertical shaft generator installed outside of conduit.

The disadvantage of the prototype is the low energy efficiency of the water flow passing through the cross section of the conduit. This is due to the fact that the device is a prototype turbine (PR is rum, located in the center of the working section of the conduit, partially overlaps the torque of the turbine worker thread that your prototype is directed along the shafts of the turbines.

The objective of the invention is the efficiency of the water flow passing through the working section of the conduit.

The subject of invention is a turbine installation comprising at least two turbines, horizontal coaxially installed in the conduit, and one generator, which differ according to the invention by the fact that turbines are made orthogonal cross-flow, their shafts are oriented transversely of the conduit installation, which is divided at least one calf at the turbine conduit, and connected to the block kinematic link, which is placed in a sealed cavity formed in the body of a bull.

This allows to increase efficiency of water flow through the working section of the conduit, and thereby improve the energy installation.

The invention has the following variant of development for particular cases of its implementation: - as a unit of kinematic links may be used, the generator is made with a through shaft that connects the turbine shafts; block kinematics edinelim turbine shafts; the unit of kinematic connection may include a generator made with through-shaft, and two inputs of the multiplier, while the high-speed shaft of the multipliers are connected to the shaft of the generator, and the slow - speed shaft of the respective turbine.

This allows to optimize the composition and arrangement of Electromechanical equipment installation.

In addition, the invention is a development involving the installation steps in with its own buoyancy units hydroelectric facility.

This allows to use for the construction of river GES or PES floating method, allowing to produce and debug large unit of hydraulic works in the factory, and then deliver it afloat to the place of construction of the waterworks.

Further development of the invention consists in that the power module contains a dam or a fragment dam hydroelectric facility in the form of a hollow superstructure above the water line installation.

This simplifies the construction of the hydroelectric station.

The upper structure can be made shorter conduit installation in the direction of motion of the block-module.

This increases ledostojkoj hydrosoluble with placement in the cavity steer generator and two multipliers. In Fig.1 shows a section a-a installation in the plane perpendicular to the axis of the turbine of Fig.2 - its cross-section B-B in the plan at the level of the axis turbines.

Installation (see Fig. 1 and 2) includes a conduit 1 installation, separated by goby 2 two turbine conduit 3 and 4. In the conduits 3 and 4 is an orthographic cross-flow turbines 5 and 6. The shafts 7 and 8 turbines 5 and 6 mounted horizontally and aligned transversely of the conduit 1 and the conduits 3 and 4). Dividing goby 2 is made hollow and advanced in the middle part. The shafts 7 and 8 turbines are connected by a block 9 kinematic link, which is placed in a sealed cavity 10 bull 2 fitted in a machine room. In the particular case of the invention, shown in the drawing, the block 9 comprises a generator 11 and two multiplier 12. High-speed shaft 13 of the two multipliers 12 is connected through shaft 14 of the generator 11. Low-speed shaft 15 of each of the multiplier 12 is connected with the shaft 7 or 8 of the respective turbine.

As multipliers 12 can be used relatively cheap single-stage cylindrical gear.

The invention also provides for the possibility of abandoning the use of multipliers 12 by direct connection of the shafts 7 and 8 through the increased several times, he freely placed in the cavity 10. It is also possible implementation of the invention in oral goby 2 only one multiplier connecting the shafts 7 and 8 to its low speed through shaft, and moving the generator 11 (shaft is kinematically connected with the high-speed shaft of the multiplexer), for example, in the upper part of the installation.

To control the turbines 5 and 6, the conduits 3 and 4 can be equipped with working shutters 16.

In Fig. 2 shows the installation steps, when each side of pier 2 installed on one of the orthogonal turbine. It is also possible implementation of the invention in the form of an installation with multiple turbine water pipes and turbines on each side of pier 2, United in one unit. When this setting can contain multiple blocks 9, kinematically connecting the shafts of the turbine and placed in sealed cavities formed in the respective butts.

The plant is used in the composition of dam storage hydro (tidal or river) and works as follows.

After the opening of the gates 16 of the turbine 5 and 6 rotate under the action of the pressure of the water flowing through their turbine conduits 3 and 4, which is provided by the difference in water levels between the top and bottom is e low over the dam (downstream). On PES higher levels are seen with one, then the other side of the conduit 1, which is associated with the natural rotation of the tides. Orthogonal turbine 5 and 6 can work in bilateral turbine mode, i.e. when a periodic change of direction of flow of water through the turbine conduit. When the direction of rotation of the turbine (and hence the generator 1) remains unchanged.

The proposed solution allows to increase (relative to the prototype), the efficient use of water flow through the working section of the conduit. The proposed solution also allows an additional increase of energy efficiency by optimizing the geometry of flow paths turbine in accordance with [2].

In addition, the advantages of the proposed solution include: - compact and convenience for operation to place the unit, combining the generator(s) and multiple turbines; - possibility to reduce the number of units on mnogokratnyh PES or river hydroelectric power plant and thereby reduce the cost of Electromechanical equipment of power plant; - the ability to use mnogodomennykh the units of the orthogonal turbine is cheaper than traditional axial (n is the block-module hydroelectric facility.

In this case, holes penstocks 3 and 4 must be equipped with means for installation and removal of the transport gates 17, such as bioportal (floating gates), and also means a temporary seal.

The proposed installation as having its own buoyancy block module enables you to use the floating method of construction of hydroelectric power plants, including industrial manufacturing and debugging block modules (with units and all the Electromechanical equipment of the turbine hall) at the factory and deliver them afloat to the site.

The floating unit may include a dam or a fragment of a hydroelectric dam (PES or resnoy HPP) in the form of a hollow upper structure 18 on the conduit 1.

To improve ledostojkoj constructed dikes width of the dam (upper structure) can be shortened relative to the length of the conduit 1 and pier 2 (see Fig.1).

Sources of information 1. Auth. the certificate of the USSR 1606731, IPC F 03 B 1/00, 1990

2. RF patent 2044155, IPC F 03 B 1/00, 1995

3. Auth. mon. The USSR 1280178, IPC F 03 B 13/10, 1986

Claims

1. Turbine installation comprising at least two Turbinenhalle cross-flow, their shafts are oriented transversely of the conduit installation, which is divided at least one calf at the turbine conduit, and connected to the block kinematic link, which is placed in a sealed cavity formed in the body of a bull.

2. Installation under item 1 characterized in that as a unit of kinematic connection used generator made with through-shaft connecting the turbine shafts.

3. Installation under item 1 characterized in that the unit of kinematic connection is made in the form of added multiplier with continuous low-speed shaft connecting the turbine shafts.

4. Installation under item 1 characterized in that the unit of kinematic links includes the generator, made with through-shaft, and two inputs of the multiplier, while the high-speed shaft of the multipliers are connected to the shaft of the generator, and the slow - speed shaft of the respective turbine.

5. Installation under item 1 characterized in that it is made in the form with its own buoyancy units hydroelectric facility.

6. Installation under item 5, characterized in that the power module contains a dam or a fragment dam hydroelectric facility in the form of a hollow superstructure above the conduit mouth

 

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