Wind-heat generator

FIELD: heat power engineering.

SUBSTANCE: invention can be used for heating and hot water supply of different buildings. Proposed wind-heat generator contains water heat accumulator, windmill, bevel gear train (transmission), mechanical heater in form of agitator with movable blades each pair of which is made to centrifugal governor scheme (Watt governor). Wind heat generator is furnished additionally with second bevel gear train (transmission) rotating in opposite direction relative to first bevel gear train, each train being provided with equal number of agitators with movable blades.

EFFECT: increased efficiency of utilization of wind energy in wider range of wind velocities, improved reliability of heat generator and reduced cost of thermal energy.

1 dwg

 

The invention relates to the field of power engineering and can be used for heating and hot water supply of small buildings and structures [1].

For heating objects such as generators, as a rule, used boilers, solid, gaseous or liquid fuel.

The main disadvantage of boilers of small capacity, solid fuel, is the unsolved problem of the automatic feed boiler fuel and removal of boiler slag and, as a consequence, the need for additional specialized personnel in the operation of the boiler.

Boilers operating on gaseous fuels easily automated, but their use is severely limited due to the absence in the immediate vicinity of the boiler sources of natural gas pipelines. The use for these purposes liquefied gas is not justified on economic grounds.

The main disadvantage of boiler fuel oil is the high cost of petroleum products, the need to build special devices for storage and fuel - oil farms.

In connection with this lately as heat generators, small power became widely used boilers for electric energy - electrode boilers [2].

The main advantage of such generators follows from the much more widespread electrical networks, compared to gas networks, as well as from a very simple and reliable system of automation of these boilers, which allows them to regulate their power from 100% to 25% without human intervention.

The main disadvantage of this technical solution is the high cost of manufactured products - hot water, which is a consequence of the high cost of electrical energy.

To reduce the cost of obtaining hot water, in parallel to the existing external sources of electrical energy using local wind power installation [3, 4].

Despite the fact that the wind power installation works partially on free wind energy, given the cost of producing units of energy such facilities commensurate with costs similar to the costs of thermal power plants [3].

Outlined stems not only from the instability of wind power, but also from the high capital costs of the establishment of such stations, including durable high mast, propeller, gearbox, generator, slip rings (tocooperate), inverters, rectifiers, batteries, controls and automation. The need for expensive sophisticated equipment, osobennosti automation, caused by variable wind power. For example, the increase in wind from 2 to 6 m/s, i.e. three times, increases the potential electricity generation stations in 27 times. However, to fully realize these potential wind power station can't. Each element it can work with maximum efficiency only at predetermined revolutions of the propeller.

However, the analysis of energy consumption in many sites, especially in the housing sector, shows that energy consumption in the form of electricity is not more than 15% of the total needs. The main part of energy is consumed in the form of heat for heating and hot water supply of buildings and structures. Annex 2 to the decision to grant a patent on the invention under the application №2003135742/06(038355).

Known veritablement containing water storage tank, windmill, bevel gear transmission (transmission), mechanical heater in the form of a mixer with movable blades, each pair of which is made for the centrifugal regulator (regulator watt) (see EN, 2171913 C1, F 03 D 9/00, 10.08.2001) [4], the set of essential characteristics adopted for the prototype of the invention.

The disadvantages of wind turbine are low coefficient of performance (efficiency) and low reliability and efficiency. To resolve the decree is the major shortcomings of heat supply of the second (optional) bevel gear turning towards the first.

The gear ratio of the two bevel gears are equal, therefore, in this case, each of the transmissions (transmissions) shall be equipped with an equal number of agitators.

Such generator allows to fully exploit the potential of wind energy by converting this energy directly into heat, bypassing the stage of converting wind energy into electricity, while substantially simplifying and reducing the cost of this device.

Mechanical heater as the prototype, is invited to perform in the form of stirrer tanks filled with viscous fluid, which has rotating blades. During the rotation of the blades of the mixer in fluid mechanical energy is expended to overcome friction forces and, ultimately, into warmth. This heat is used to heat the water circulating in the heating system and hot water.

In addition, the use of a stirrer with blades of variable radius, operating on the principle of centrifugal regulator (regulator watt), with mechanical drive from the wind turbine allows the best use of the kinetic energy of the wind due to the stabilization of the number of revolutions of the propeller at different wind speeds, as well as to solve the problem of running a wind turbine without any of the false systems of control and automation.

New in the claimed invention is to install an additional (second) bevel gear transmission (powertrain), rotating in the opposite direction with respect to the above-mentioned first bevel gear and a compensating torque forces generated during the change of rotational direction (horizontal to vertical) shaft of a wind turbine, when operating bevel gears.

While wind energy is converted directly into heat by mechanical heater in the form of a stirrer with blades rotating in different directions.

These new signs not identified the current level of technology that allows to make a conclusion on the compliance of the claimed invention, the criterion of “inventive step”.

New signs together can significantly improve the efficiency of wind power installation and to simplify it, to abandon the expensive and unreliable elements: electric generators, inverters, rectifiers, batteries, electronic automation.

The invention is illustrated in the following example, the device proposed vetratafloreale (figure 1), which consists of a wind turbine 1, indicated by a conical gear (transmission) 2 and 3 (the second gear) and the shafts 4 and 5 with a mechanical heater 6, filled with a viscous fluid, for example, mineral gear oil 7. Inside the heater 6 seated on the shafts 4,5 transmissions are agitators 8, each pair of blades 9 which operates on the principle regulators of the speed of steam engines (control vehicle). This design of mixers 8 allows you to use them as instructed for the transformation of mechanical energy into heat and to regulate the number of revolutions of the turbine 1 at different wind speeds. Each mixer 8 consists of movable blades 9, 10 and fixed mobile 11 couplings. In addition, the heater 8 is a tubular heat exchanger 12, communicated through pipes 13 and 14 with a water battery 15, in the form of insulated containers with water, and the external heat supply networks 16 and 17.

Veritablement works as follows. Initial condition: the propeller of a wind turbine 1 and the shafts 4 and 5 do not rotate, the blades 9 of the mixer 8 to the heater 6 under the weight of the movable clutch 11 is pressed against the shafts 4 and 5. The system has the smallest moment of inertia, resistance gear oil 7 the rotation of the blades 9 is zero. This initial state promotes the unwinding of the propeller wind turbine 1 when exposed to wind. When reaching the set speed of the propeller of a wind turbine 1, due to the action of centrifugal forces, lop the STI 9 and the movable clutch 11 rise up, the radius of rotation of the blades 9 will increase, increasing the friction in the heater 6 and the conversion of mechanical energy into thermal energy. Gear oil 7 during the rotation of the stirrer 8 is heated and transfers heat energy through the tubular heat exchanger 12 and the pipe 13 water in thermal water battery 15 from which the heated water flows through the pipe 16 into the heating system and hot water. Part of the water from the heat accumulator 15, due to gravitational forces, returns to the tubular heat exchanger 12 through the pipeline 14 for additional heating during the minimum demand on the network.

The heated water passing through the external heating systems and hot water, cooled and partially consumed in the networks of consumers, which is returned with the simultaneous injection of water, through pipeline 17, for re-heating. Then the cycle repeats.

With increasing wind speed above the rated number of revolutions of the propeller wind turbine 1 and the associated shafts 4 and 5, as well as mixers 8 increases, and simultaneously increases the centrifugal force acting on the blades 9 of the mixer 8. Under the influence of this force, the blades 9 mixers 8 depart further from the shafts 4 and 5, increasing the radius and the linear speed of rotation of the blades 9. Sharply (in the square of the speed) uvelichivaetsya.poetomu gear oil 7 in the heater 6, which slows the rotation of the propeller of a wind turbine 1, reducing its speed. When the wind speed reduction, the process is reversed: the centrifugal force acting on the blade 9, is reduced under its own weight (or by using special springs that are not shown) of the blade 9 and the movable clutch 11 is moved down while the blade 9 is moved closer to the shafts 4 and 5, the radius of rotation and the linear speed is reduced, while reducing the resistance of the transmission oil 7 the rotation of the blades 9 of the agitator 8, resulting in the number of revolutions of the propeller wind turbine 1 is increased to the rated value.

In the process claimed vetratafloreale torque forces produced when the bevel gears 2 and 3 (each of which tends to deflect the horizontal shaft and the propeller of a wind turbine 1 and the wind direction), acting on horizontal shafts simultaneously in opposite directions, cancel each other, resulting in a total torque of the forces is equal to zero, and the wind turbine 1, as veritablement in General, uses the potential of wind with the greatest effect.

The use of declared thermal generator will dramatically reduce capital and operational costs upon receipt of thermal energy, which is very important for the remote areas of our country, for example, the far North, the supply of fuel, which poses a big problem.

List of sources:

1. Arsenyev, GV and other Thermal equipment and heat networks. M.: Energoatomizdat, 1988, 400 S.

2. Roddatis CYP, Poltoratskiy A.N. Handbook of boiler plants with low productivity. M.: Energoatomizdat, 1989, 488 S.

3. Revell P., Revell Including our Environment. The energy problems of mankind. M.: Mir, 1995, 291 S.

4. RF patent № 2171913, 2000, IPC 7 F 03 D 9/00 - prototype.

Veritablement containing water storage tank, windmill, bevel gear transmission (transmission), mechanical heater in the form of a mixer with movable blades, each pair of which is made for the centrifugal regulator (regulator watt), characterized in that it is provided with an additional (second) bevel gear (transmission), rotating in the opposite direction with respect to the above-mentioned first bevel gear transmission (transmission), each of the transmission (transmission) equipped with an equal number of mixers with moving blades.



 

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