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Device for cooling heating part used for supporting or driving rotary part

A technology for cooling devices and heat-generating components, applied in cooling/ventilation devices, electromechanical devices, bearing cooling, etc., can solve problems such as increasing the risk of high-speed equipment operation, achieve efficient cooling, and achieve cooling effects

Active Publication Date: 2019-08-16
SHANGHAI JIWU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the patent document CN101443987, a cooling device that can be used on the above-mentioned bearings and motors supporting the flywheel is disclosed. The cooling device adopts a structure in which moving fins and static fins are inserted into each other, and realizes heat exchange through heat conduction, but Due to the need to maintain a very small distance between the moving heat sink and the static heat sink, it will increase the risk of high-speed equipment operation, and increase the difficulty of processing and assembling parts

Method used

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  • Device for cooling heating part used for supporting or driving rotary part
  • Device for cooling heating part used for supporting or driving rotary part
  • Device for cooling heating part used for supporting or driving rotary part

Examples

Experimental program
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Effect test

Embodiment 1

[0044] See Figure 1-Figure 4 , this embodiment provides an implementation of the cooling device.

[0045] figure 1 Shown is a gyro anti-rolling device for a ship, wherein a steel flywheel 10 rotates at a high speed in a housing 12 driven by a high-speed motor 11, and the housing 12 can be used as a closed space to vacuumize to form a low-pressure environment, and can also be filled. Other gases with a density lower than air are injected to reduce the wind resistance of the flywheel 10 rotating at high speed, and the bearings 13 and 14 are used to support the high-speed operation of the flywheel 10.

[0046] When the flywheel 10 runs at high speed, a large amount of heat will be generated on the inner / outer rings of the bearings 13, 14 and the motor 11, wherein the bearing outer ring 15 (please refer to figure 2 shown) and the heat of the motor stator 112 can be conducted to the housing 12 and dissipated, but the bearing inner ring 16 (please refer to figure 2 As shown) a...

Embodiment approach

[0065] The design of moving heat sink can also be taken as Figure 6 By reducing the number of blades 182' and increasing the area of ​​each blade 182', the heat dissipation capacity of the moving heat sink is improved.

[0066] The cooling effect evaluation of the cooling device of the present embodiment is as follows:

[0067] In the present embodiment, the total surface area of ​​the movable heat sink is set to be 0.43m 2 , the total surface area of ​​the static heat sink is 0.47m 2 , according to the heat convection calculation formula

[0068] q=h c A dT (1)

[0069] in,

[0070] q heat dissipation power, the unit is (W);

[0071] A heat dissipation surface area, the unit is (m 2 );

[0072] hc convective heat transfer coefficient, unit is (W / (m 2 ℃);

[0073] dT is the temperature difference between the fluid and the cooling surface, in (°C).

[0074] Under the high-speed rotation of the rotor, the gas flow linear velocity will reach more than 60m / s, which is...

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Abstract

The invention relates to improvement on a cooling device of a gyroscope stabilizing device, and the cooling device is suitable for cooling other similar products. The gyroscope stabilizing device mainly depends on inertia of a high-speed rotating flywheel inside to output a moment of force reverse to a ship shaking direction to achieve the purpose of stabilizing the ship. Bearing support and motordrive are needed for realizing high-speed rotation of the large-inertia flywheel, and a bearing and a motor generate a great deal of heat during high-speed rotation. Meanwhile, in order to reduce airresistance, a rotor needs to package in a low-pressure vacuum environment or a low-density gas environment, and sufficient heat exchange is difficulty realized as heat dissipation of the high-speed rotary part under the vacuum environment is difficult. The cooling device disclosed by the invention is that a movable heat dissipation sheet and a movable heat dissipation sheet are arranged on the gyroscope stabilizing device, and a sealed gas circulating channel is formed between the movable heat dissipation sheet and the movable heat dissipation sheet, so that a high-speed rotating heating partis efficiently cooled through a convection mode under the vacuum low-pressure environment or the low-density gas environment.

Description

technical field [0001] The present invention relates to a cooling device for a heat-generating component. The heat-generating component is a heat-generating component (such as a bearing, a motor) for supporting or driving a rotating part, or other heat-generating parts supporting or driving a rotating part (or called a rotary machine), so The rotating parts or rotary machines described above are high speed parts such as flywheels sealed in a partial vacuum. Background technique [0002] The gyro anti-rolling device used to reduce the ship's shaking mainly relies on the inertia of the internal high-speed rotating flywheel to output a torque opposite to the ship's shaking direction to stabilize the ship. To realize the high-speed rotation of the flywheel with large inertia, it must be supported by bearings and driven by a motor. When the flywheel rotates at high speed, both the bearing and the motor will generate a lot of heat. In order to ensure the stable and high-speed ope...

Claims

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Application Information

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IPC IPC(8): F16C37/00H02K5/18H02K9/06H02K9/19
CPCF16C37/007H02K5/18H02K9/06H02K9/19B63B39/04
Inventor 陈少楠罗琳唐志勇崔玉会
Owner SHANGHAI JIWU TECH CO LTD
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