Prime-mover dynamo plants – Fluid-current motors – Wind
Patent
1993-07-01
1995-07-25
Pellinen, A. D.
Prime-mover dynamo plants
Fluid-current motors
Wind
290 44, 416 13, 416 15, 416 16, F03D 902, F03D 106
Patent
active
054365082
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a wind-powered energy production and storing system, comprising a wind rotor of a compact structure in driving engagement with a power generator via transmission means, to which is also connected a heat pump for operation of at least one heat exchanger unit.
Whereas wind rotors most often are used for production of electrical energy, possibly connected to a public supply network, systems are known from, i.e. SE-B-385613 and DE-A-3008327, according to which wind energy is used directly for heat generation without intermediate conversion to electricity.
The purpose of such plants has partly been to balance the irregularity in the occurrence of wind energy, partly to provide plants for use in areas where a coordination with electrical energy is not possible and where the primary energy requirement is heating.
With this as a starting point the objective of the invention is to provide a wind energy, system which is suited for simultaneous production of power and heat energy with a relatively high efficiency, in which a cold storing station is connected to the storing system for production of cold, and the heat energy by being stored can be used for power production in periods of slack winds.
A further objective of the invention is to vide a plant of the above-mentioned type with a comparatively simple, robust and compact structure, well suited for being erected in isolated areas where access to energy supply from the outside is non-existent or poor.
For this purpose a wind-powered energy production and storing system according to the invention is characterized in that the wind rotor is designed as a wind wheel having a rim in direct driving engagement with a main shaft positioned in a subjacent engine housing to which main shaft, in addition to the power generator and said heat pump, a dual circulation pump is coupled for conveying heated and cooled liquid from a heating container and a cooling container, respectively, positioned in the engine housing to separate heat and cold storing stations.
With the compact rotor structure, in which a wind wheel which in principle may be designed as it is known per se from DE-A-3210405 in direct driving engagement with a main shaft positioned in a subjacent engine housing to which both a power generator and other driving units serving for energy production are connected, an integrated wind energy plant of a simple structure is obtained.
The separate heat and cold storing stations may be designed as, e.g. sand-filled energy storages buried in soil and insulated.
By connecting a steam generator or boiler station to the heat storing station via a steam separator and exploiting the produced steam for power production by means of a turbine the possibility of maintaining power supply also in periods of slack winds is obtained, in addition to which excess power from the power generator positioned in the engine housing can be routed to the boiler station to be stored as surplus heat.
The output can be improved by using not only liquid as heating and cooling medium, respectively, but also air which is discharged from a blower positioned in the engine housing with temperature regulated air discharge either to the heat storing station or the cold storing station.
In the same way as it is known in principle from SE-B-400112, an automatic gale protection device may be connected to the wind rotor, designed as an oil pump coupled to the main shaft which via a hydraulic activator can activate a gale protection device which is spring-loaded in the normal operational condition of the wind wheel and which turns the wind wheel out of the wind if a certain wind velocity is exceeded.
The invention is further explained in the following with reference to the schematic drawing, in which
FIG. 1 is a principal diagram illustrating an embodiment of a wind energy system according to the invention;
FIGS. 2 and 3 show an embodiment of the rotor structure;
FIGS. 4 and 5 show further details of the gale protection device;
FIGS. 6 to 8 show further details of the design of a blade o
REFERENCES:
patent: 2329675 (1943-09-01), Albers
patent: 4206608 (1980-06-01), Bell
patent: 4230531 (1980-10-01), Fernandopalle
patent: 4787819 (1988-11-01), Bond
Park, The Wind Power Book, 1981, p. 142.
Hoover Robert Hoyd
Pellinen A. D.
Sorensen Anna-Margrethe
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