Forced-oil-circulation, energy-saving and low-noise air-cooled transformer cooling system

Abstract

A forced-oil-circulation, energy-saving and low-noise air-cooled transformer cooling system comprises a cooling frame, a heat dissipation pipe and an air duct, wherein the heat dissipation pipe and the air duct are fixedly connected to the cooling frame, a dustproof silencing net is installed on an air inlet of the air duct, and a fan motor and a water spraying cooling device are installed in the cooling frame. A control circuit module is arranged in a subcontrol box and connected with a first temperature sensor installed on an oil outflow pipe and a second temperature sensor installed on an oil inflow pipe, and the control circuit module is connected with the fan motor and the water spraying cooling device. According to the forced-oil-circulation, energy-saving and low-noise air-cooled transformer cooling system, a new part with the heat-dissipation function and a new heat dissipation mode are adopted, a silencing fan array set which is small in size, light in weight and high in universality and the dustproof silencing net are selected under the condition that it is guaranteed that the heat exchange capacity is not lowered, and the purposes of lowering noise and saving energy are achieved; a functional element is small in size and light in weight and thus can be conveniently maintained in a factory; the water spraying evaporation is added for cooling assistance so that the heat dissipation effect can be achieved.

Description

technical field [0001] The invention discloses a forced oil circulation energy-saving and low-noise air-cooled transformer cooling system, which relates to the field of transformer cooling in power systems. Background technique [0002] The cooling methods using transformer oil as the cooling medium are: oil-immersed self-cooling, oil-immersed air cooling, forced oil circulation air cooling, forced oil circulation water cooling. Due to the limitations of manufacturing and design technical capabilities, the early transformers mainly used oil-immersed self-cooling and oil-immersed air cooling as cooling methods, which were only suitable for small-capacity transformers. In the 1980s, as the manufacturing capacity of transformers increased, their calorific value also increased, and the matching methods of forced oil circulation air cooling and forced oil circulation water cooling were applied to transformers. [0003] In the existing technology, many old-fashioned cooling syste...

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Problems solved by technology

Disadvantages and deficiencies of the above transformation: 1. The transformation workload is large and the direct cost is high; 2. The transformation requires a long time of power outage; 3. Due to the increase in the surface area of ​​the heat sink, the leakage point increases

The cooling system has high noise, high energy consumption, high failure rate, and difficult maintenance, which does not meet the development direction of the State Grid Corporation of "energy saving, environmental protection, factory maintenance"

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