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Forced oil circulation finned radiator of oil-immersed transformer

An oil-immersed transformer and strong oil circulation technology, applied in the field of transformers, can solve the problems of reduced life of winding insulation materials, reduced service life of transformers, slow flow of transformer oil, etc., to achieve reduced copper consumption, smaller oil tanks, and delayed aging speed effect

Inactive Publication Date: 2014-11-19
徐健
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently commonly used radiators, transformer oil mainly conducts heat through heat convection inside the transformer, such as figure 1 As shown: that is, the hydraulic oil enters from the upper oil inlet and flows out from the lower oil outlet. During the process, the transformer oil flows slowly and the heat dissipation effect is relatively poor, which reduces the life of the winding insulation material and further reduces the service life of the transformer. It is difficult to meet the current requirements. cooling requirements

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  • Forced oil circulation finned radiator of oil-immersed transformer
  • Forced oil circulation finned radiator of oil-immersed transformer

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing.

[0015] Such as figure 2 As shown, the oil-immersed transformer strong oil circulation plate radiator of the present invention includes an oil inlet flange 1 and an oil outlet flange 11 arranged on the oil-immersed transformer oil circulation pipeline, and also includes an axial flow pump, a shaft The flow pump consists of a motor, a coupling 5, a shaft 6 and an impeller 7; the motor is installed at the opposite end of the oil outlet flange 11, the motor is connected to the shaft 6 through the coupling 5, and the impeller 7 is assembled near the outlet flange 11. On the shaft 6 of the oil port flange 11.

[0016] Further, the motor includes a motor stator 2 , a motor rotor 3 and a motor winding 4 , and the motor rotor 3 drives a shaft 6 .

[0017] Preferably, the number of impellers 7 is three or more, and the number is one. Multiple numbers and multi-blade impellers 7 ca...

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Abstract

The invention discloses a forced oil circulation finned radiator of an oil-immersed transformer. Based on an original finned radiator, an axial flow pump is additionally arranged, and the axial flow pump is composed of a motor, a coupler (5), a shaft (6) and an impeller (7). The motor is arranged at one end opposite to an oil outlet flange (11), the motor is in butting joint with the shaft (6) through the coupler (5), and the impeller (7) is arranged on the shaft (6) close to the oil outlet flange (11). The motor of the axial flow pump drives the shaft, the shaft is linked with the impeller to forcedly improve the flow speed of oil of the transformer, so that heat dissipation efficiency is improved, the aging speed of winding insulation materials is slowed, and the service life of the transformer is prolonged.

Description

technical field [0001] The invention relates to a transformer, in particular to an oil-immersed transformer strong oil circulation fin radiator, which belongs to the technical field of transformer heat dissipation. Background technique [0002] The oil-immersed transformer is to immerse the body of the transformer in special transformer oil. The transformer oil can be used as both an insulating medium and a heat-conducting medium for heat conduction. Since the body is immersed in oil, there are high requirements for the heat conduction and dissipation of the body: when the oil-immersed transformer is running, the internal winding, iron core and other components generate losses, which are converted into heat and passed through the heat conduction and convection of the transformer oil The effect is transmitted to the wall of the oil tank, so that the temperature of the winding, iron core, oil tank wall and oil surface rises. The temperature rise directly affects the life of th...

Claims

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Application Information

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IPC IPC(8): H01F27/12
Inventor 徐健
Owner 徐健
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