A kind of energy storage device of magnetic suspension flywheel cooling system
Technical field
The utility model relates to a kind of energy storage device of magnetic suspension flywheel cooling system.
Background technology
As everyone knows, energy storage device of magnetic suspension flywheel, be called again magnetic suspending flying wheel battery, it is the flywheel storage power of utilizing High Rotation Speed, it with its high-specific-power, high-energy-density, discharge and recharge fast, the life-span long and without features such as chemical contaminations, be just subject to the attention of all trades and professions, oneself is for the fast charging and discharging of the dual-use industries such as large-scale lifting machine, automobile, train, space flight, aviation abroad.
During magnetic suspending flying wheel battery charging, its motor, as motor, makes its High Rotation Speed by motor driven flywheel, by electric energy conversion, is that mechanical energy stores.During magnetic suspending flying wheel battery electric discharge, now its motor, as generator, drives generator to generate electricity by flywheel, the mechanical energy of flywheel is converted into electric energy and exports to power consumption equipment.Above-mentioned magnetic suspending flying wheel battery, utilizes radial direction magnetic bearing and axial magnetic bearing by the contactless suspension of flywheel rotor axle, the energy loss of bringing because of friction in the time of can avoiding flywheel rotation; , fly wheel system is sealed in a vacuum environment (housing) meanwhile, can effectively eliminates the resistance loss of air.Existing energy storage device of magnetic suspension flywheel is faced with a technical problem, and that is exactly the cooling problem of equipment.Existing energy storage device of magnetic suspension flywheel is generally only provided with motor stator water-cooling spiral groove device, but the cooling problem of rotor is never resolved.Prior art is badly in need of the energy storage device of magnetic suspension flywheel cooling system that a kind of cooling effect is good.
Summary of the invention
The purpose of this utility model is to overcome the defect existing in prior art, and the energy storage device of magnetic suspension flywheel cooling system that a kind of cooling effect is good is provided.
For achieving the above object, the technical solution of the utility model has been to provide a kind of energy storage device of magnetic suspension flywheel cooling system, described energy storage device of magnetic suspension flywheel cooling system comprises rotating shaft and is arranged on the flywheel ring of rotating shaft middle and lower part, and described rotating shaft upper and lower is respectively equipped with upper magnetic bearing and the lower magnetic bearing of supporting revolving shaft; In described rotating shaft, be also provided with electric machine assembly; Described rotating shaft, upper magnetic bearing, lower magnetic bearing and electric machine assembly are installed in casing, keep vacuum state in described casing; Described casing is provided with the coolant nozzle extending from outside to enclosure interior.By being set in housing, coolant nozzle can in housing, spray liquid nitrogen fast, moment is taken away the heat in housing, vaccum-pumping equipment outside housing can keep nitrogen sucking-off vacuum state, can guarantee that the suitable while of internal temperature environment of energy storage device of magnetic suspension flywheel can not destroy inner vacuum environment since like this.
As preferably, described coolant nozzle is connected with liquid nitrogen container.Such design is the further optimization to scheme.
As preferably, described coolant nozzle comprises body and is arranged on the shower nozzle of body leading section, described shower nozzle opening upwards.Being designed with is like this beneficial to liquid nitrogen to the high place diffusion of heat.
As preferably, described nozzle position is arranged between rotating shaft and electric machine assembly.Being designed with is like this beneficial to liquid nitrogen to the high place diffusion of heat.
As preferably, described body is provided with quantitative electromagnetically operated valve.Like this be designed with to be beneficial to controlled liquid nitrogen spray amount.
As preferably, in described casing, be also provided with temperature sensor.Like this be designed with to be beneficial to carried out Real-Time Monitoring to the temperature in housing.
As preferably, described quantitative electromagnetically operated valve is connected with processor respectively with temperature sensor.Like this be designed with to be beneficial to carried out Based Intelligent Control to refrigerant injection.
As preferably, described electric machine assembly comprises motor rotor component and motor stator component, and described motor stator component is provided with cooling pipe component outward, and described cooling pipe component is connected with casing by cooling water pipe support.Being designed with is like this beneficial to motor stator component and continues cooling.
As preferably, described cooling pipe component is water-cooling spiral bowl assembly, comprises water inlet, water-cooling spiral groove and delivery port.Such design is the further optimization to scheme.
As preferably, described flywheel comprises ring and carbon fiber outer shroud in aluminium alloy.Such design can improve the rotary speed of flywheel.
Advantage of the present utility model and beneficial effect are: by coolant nozzle is set in housing, can in housing, spray liquid nitrogen fast, moment is taken away the heat in housing, vaccum-pumping equipment outside housing can keep nitrogen sucking-off vacuum state, can guarantee that the suitable while of internal temperature environment of energy storage device of magnetic suspension flywheel can not destroy inner vacuum environment since like this.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, rotating shaft; 2, flywheel ring; 3, upper magnetic bearing; 4, lower magnetic bearing; 5, electric machine assembly; 6, casing; 7, coolant nozzle; 8, liquid nitrogen container; 9, body; 10, shower nozzle; 11, quantitative electromagnetically operated valve; 12, temperature sensor; 13, motor rotor component; 14, motor stator component; 15, cooling pipe component; 16, cooling water pipe support; 17, water inlet; 18, water-cooling spiral groove; 19, delivery port; 20, ring in aluminium alloy; 21, carbon fiber outer shroud.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection range of the present utility model with this.
As shown in Figure 1-Figure 3, a kind of energy storage device of magnetic suspension flywheel cooling system, described energy storage device of magnetic suspension flywheel cooling system comprises rotating shaft 1 and the flywheel ring 2 that is arranged on rotating shaft 1 middle and lower part, and described rotating shaft 1 upper and lower is respectively equipped with upper magnetic bearing 3 and the lower magnetic bearing 4 of supporting revolving shaft 1; In described rotating shaft 1, be also provided with electric machine assembly 5; Described rotating shaft 1, upper magnetic bearing 3, lower magnetic bearing 4 and electric machine assembly 5 are installed in casing 6, the interior maintenance vacuum state of described casing 6; Described casing 6 is provided with the coolant nozzle 7 extending from outside to enclosure interior.
Described coolant nozzle 7 is connected with liquid nitrogen container 8.
Described coolant nozzle 7 comprises body 9 and is arranged on the shower nozzle 10 of body 9 leading sections, described shower nozzle 10 opening upwards.
Described shower nozzle 10 positions are arranged between rotating shaft 1 and electric machine assembly 5.
Described body 9 is provided with quantitative electromagnetically operated valve 11.
In described casing 6, be also provided with temperature sensor 12.
Described quantitative electromagnetically operated valve 11 is connected with processor respectively with temperature sensor 12.
Described electric machine assembly 5 comprises motor rotor component 13 and motor stator component 14, the outer cooling pipe component 15 that is provided with of described motor stator component 14, and described cooling pipe component 15 is connected with casing 6 by cooling water pipe support 16.
Described cooling pipe component 15 is water-cooling spiral bowl assembly, comprises water inlet 17, water-cooling spiral groove 18 and delivery port 19.
Described flywheel comprises ring 20 and carbon fiber outer shroud 21 in aluminium alloy.
Under use state, temperature sensor 12 is connected with processor with quantitative electromagnetically operated valve 11, when the temperature in housing is greater than predetermined temperature, processor is controlled quantitative electromagnetically operated valve and is opened, large calorimetric drawn in the rapid words said in a fit of rage of liquid nitrogen, and under the uninterrupted extraction of vaccum-pumping equipment, nitrogen is slowly sucked out, and such type of cooling can siphon away by the heat by housing rapidly and efficiently, in assurance housing, especially the working temperature of rotating shaft is suitable.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection range of invention.