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Motor cooling structure of immersed pump

A motor cooling and submersion technology, which is applied to components, pumps, and pump components of pumping devices used for elastic fluids, can solve problems such as poor cooling effects, prolong service life and equipment maintenance cycles, and solve temperature problems. Improve the effect of upgrading the problem and improving the operating environment

Active Publication Date: 2013-02-06
SHANGHAI KAIQUAN PUMP IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Furthermore, the heat absorbed by the coolant inside the existing submersible pump is only radiated out by the motor casing, and the cooling effect is not good.

Method used

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  • Motor cooling structure of immersed pump
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Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0019] Such as figure 1 and figure 2 As shown, the present invention includes a connecting frame 160, a pump body 600 and a motor component, and the bottom of the connecting frame 160 is connected to the top of the pump body 600 through fasteners.

[0020] The motor components include a coolant regulating device 400 arranged inside the pump body 600, a submersible motor 200, a motor base 240, a motor housing 260, a bearing frame 170, and a thrust bearing component 700. The coolant regulating device 400 is fixed on the pump by bolts. On the support base 610 at the bottom of the body 600, the motor base 240 is fixed on the coolant adjusting device 400 with bolts, the motor housing 260 is fixed on the motor base 240 with bolts, and the bearing fram...

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Abstract

The invention discloses a motor cooling structure of an immersed pump. The motor cooling structure comprises a sealing member, a cooling coil, a circulation impeller, a circulation guide vane and an adjusting device, wherein the adjusting device is communicated with a motor shell; the cooling coil is installed outside the motor shell and immersed inside an sucking channel of the pump body; the upper end of the cooling coil is communicated with the sealing member and the lower end is communicated with the adjusting device; the sealing member is a hollow shell with a reinforced circulation chamber; and a circulation impeller and a circulation guide vane are installed inside the reinforced circulation chamber. The motor cooling structure has the benefits that the motor temperature rising problem is solved; the cooling liquid has a lubrication function to the motor; the motor has strong circulation stability and can work for a long term without changing the cooling liquid; so that the cooling condition of the motor is significantly improved and the period for changing the cooling liquid is prolonged; and the axial load of a main pump bearing is reduced, so that the reliability and the stability of the motor operation are effectively improved. As a result, the operation environment of the motor is improved, the service lives of components and maintenance period of equipment are prolonged; and the expense of a whole project is saved.

Description

technical field [0001] The patent of the present invention relates to a cooling structure of a pump motor, in particular to a motor cooling structure of a submersible pump. Background technique [0002] The submersible pump installed in the pump pit at the bottom of the underground water-sealed cavern is the key equipment to ensure the long-term, high-efficiency, safe and reliable operation of the underground cavern. In the existing technology, how to reduce the temperature of the stator and rotor of the motor is a large Technical problems of submersible pumps. When the equipment is running, it often generates a lot of heat, and the poor cooling effect will cause the temperature to rise sharply. Excessive temperature will not only cause the rotor to expand due to heat, but also reduce the gap between the rotor and the stator, causing severe friction between the rotor and the stator. Friction will also lead to the degradation of the metal properties and strength of the motor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/58
Inventor 王准丁恒利邵必勇黄华昌
Owner SHANGHAI KAIQUAN PUMP IND GROUP
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