System for cooling electric machine

FIELD: electric mechanical engineering, possible use for cooling electric generators and electric engines.

SUBSTANCE: in proposed system for cooling electric machines, containing compressed air source with force pipeline, splitting vortex pipe, having as a result of energy division to hollows - hot one and cold one, thermal pipe made inside the hollow shaft of electric machine, as a special feature, along axis of hollow shaft a tubular channel is made for passage of cold flow from splitting vortex pipe, and space, formed by external surface of tubular channel and internal surface of hollow shaft is thermal pipe, condensation area of which - external surface of tubular channel, and evaporation area - internal surface of hollow shaft.

EFFECT: efficient and even cooling of electric machine, simplified construction, increased manufacturability.

2 dwg

 

The invention relates to electrical engineering and can be used for cooling generators and motors.

The closest system to the same destination to the claimed invention on the totality of symptoms is the cooling system of an electric machine, comprising a source of compressed air with a pressure pipe, which divides a vortex tube having the energy separation of the two cavity - hot and cold, hollow shaft of the electric machine with evaporative area, a distribution tube with a condensation end and holes, the boiling liquid and the condensate (see patent RU No. 2239272, figure 1), and adopted for the prototype.

For reasons that impede the achievement of specified following technical result when using the known system adopted for the prototype is that the cooling is not sufficiently uniform, and the design of the electric machine is complicated and low-tech. The existing prototype does not allow a sufficiently uniform cooling, and the design of the electric machine is complicated and low-tech.

The invention consists in providing efficient and uniform cooling of the electric machine while simplifying the structure of the electric machine and improve its processability.

T the economic result ensuring effective and uniform cooling of the electric machine, simplified design, improved manufacturability.

This technical result in the implementation of the invention is achieved in that in the cooling system of an electric machine, containing a source of compressed air with a pressure pipe, which divides a vortex tube having the energy separation of the two cavity - hot and cold, made inside the hollow shaft of the electric machine heat pipe peculiarity lies in the fact that the axis of the hollow shaft is made of a tubular channel for the passage of a cold stream from the dividing of the vortex tube, and a space formed by the outer surface of the tubular channel and the inner surface of the hollow shaft is a heat pipe, the condensation region which is the outer surface of the tubular channel, and evaporative region - inner surface of the hollow shaft.

The drawings show:

figure 1 - prototype cooling system of an electric machine;

figure 2 - the proposed cooling system of an electric machine.

Information confirming the ability of the invention to provide the above technical result are as follows.

The cooling system of an electric machine includes a source of compressed in the spirit (ICB) 1 pressure pipe 2, dividing a vortex tube (DWT) 3, with the energy separation of the two cavity - hot 4 and cold 5, mounted on the axis of the hollow shaft 6 of the tubular channel 7, the outer surface 8 (condensation region) tubular channel 7, the inner surface 9 (evaporative region) of the hollow shaft 6, is made inside the hollow shaft 6 of the electric machine heat pipe 10, the boiling liquid 11 and the condensate 12.

The operation of the cooling system of the electric machine is operated as follows :

Compressed air from the source 1 through the pressure pipe 2 enters to allow the apparatus divides the vortex tube 3, in which the energy of the flow separation are formed two cavity - hot 4 and cold 5. The rotor of the electric machine is cooled due to the fact that the shaft 6 is made hollow, and inside it is a tubular channel 7 for the passage of a cold stream from the dividing of the vortex tube 3. The space between the outer surface 8 (condensation region) tubular channel 7 and the inner surface 9 (evaporative area) of the hollow shaft 6 is a heat pipe 10, where the vacuum is liquid. Released during operation of the electrical machine heat is removed from the inner surface 9 (evaporative area) of the hollow shaft 6 of boiling liquid 11, which evaporates. The resulting pairs condenser is camping on the outer surface 8 (condensation region) tubular channel 7. The resulting condensate 12 under the action of centrifugal force moves to the inner surface 9 (evaporative area) of the hollow shaft 6. Thus, it is intense and uniform cooling of the electric machine while simplifying its construction compared to the prototype, which leads to the increasing of technology electrical machines.

Cooling system electrical machine containing a source of compressed air with a pressure pipe, which divides a vortex tube having the energy separation of the two cavity - hot and cold, made inside the hollow shaft of the electric machine heat pipe, characterized in that the axis of the hollow shaft is made of a tubular channel for the passage of a cold stream from the dividing of the vortex tube, and a space formed by the outer surface of the tubular channel and the inner surface of the hollow shaft, is a heat pipe, the condensation region which is the outer surface of the tubular channel, and evaporative area of the inner surface of the hollow shaft.



 

Same patents:

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1 dwg

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Heat pipe // 2241187
The invention relates to heat engineering, namely, devices for heat transfer

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FIELD: cooling equipment, particularly heat exchange apparatuses.

SUBSTANCE: device to remove heat from heat-generation component includes coolant stored in liquid coolant storage part, heat absorbing part including at least one the first microchannel and installed near heat-generation component. Heat absorbing part communicates with storage part. Liquid coolant partly fills microchannel due to surface tension force and evaporates into above microchannel with gaseous coolant generation during absorbing heat from heat generation component. Device has coolant condensing part including at least one the second microchannel connected to above coolant storage part separately from the first microchannel, gaseous coolant movement part located near heat-absorbing part and condensing part and used for gaseous coolant movement from the first microchannel to the second one. Device has case in which at least heat-absorbing part is placed and heat-insulation part adjoining heat absorbing part to prevent heat absorbed by above part from migration to another device parts.

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22 cl, 4 dwg

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