Convection radiating pipe, variable-capacity convection radiating assembly and oil change radiator

Abstract

The invention relates to a convection heat dissipation pipe, a variable-capacity convection heat dissipation assembly and an oil change radiator, and belongs to the technical field of oil change radiators. According to the convection heat dissipation pipe, discrete protruding strengthening units are carved and cut on the tube wall of a heat dissipation base tube; the extending direction of the protruding strengthening units is parallel to the axial direction of the heat dissipation base pipe, each three-way heat exchange pipe comprises a first port, a second port and a third port, the centralaxis of each first port and the central axis of the corresponding second port are collinear, the central axis of each third port is perpendicular to the central axis of the corresponding first port, and the end of the heat dissipation base tube is connected with the corresponding third port. The convection heat dissipation pipe, the variable-capacity convection heat dissipation assembly and the oil change heat dissipater have good dustproof and heat dissipation effects, are modular in design, small in size and convenient to transport, and can realize splicing of a plurality of convection heatdissipation pipes so as to meet the heat dissipation requirements of different heat dissipation capacities, so that the safe operation of the transformer is ensured, and the service life of the transformer is prolonged.

Description

technical field [0001] The present application relates to the technical field of oil variable radiators, in particular to a convective cooling pipe, a variable capacity convective cooling component and an oil variable radiator. Background technique [0002] Due to the rapid development of the city, the load of the power grid continues to increase, and it is difficult to select a new substation site in the urban area, resulting in more transformers operating at full load or overload, coupled with strong solar radiation in summer, high ambient temperature and much dust in the air, etc. The oil temperature of the top layer of some transformers exceeds 95°C (self-cooling and air-cooling) stipulated in DL / T572-2010 "Operation Regulations for Power Transformers" during peak summer. Power transformers generally use Class A insulating materials, and the allowable temperature is 105°C. GB / T 1094.7-2008 "Oil-immersed Power Transformer Load Guidelines" stipulates the relative aging ra...

AI Technical Summary

Problems solved by technology

Although it has a certain cooling effect, it will waste a lot of manpower and material resources. At the same time, water spraying at high temperature will easily cause corrosion of the fin radiator, which will affect the long-term stable operation of the transformer.

[0003] The current radiators for oil-immersed transformers (referred to as oil transformer radiators) are large in size, inconvenient to transport, low in heat dissipation efficiency, and do not have good anti-dust and heat dissipation effects, which makes the temperature of the transformer rise sharply when it is overloaded, seriously affecting the safety of the transformer Operation and life

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