A device that uses two-stage cooling to solve the problem of antifreeze corrosion of silicon rectifier components

Abstract

The invention relates to a device for solving the problem of antifreeze corrosion of silicon rectifier components, in particular to a device for solving the problem of antifreeze corrosion of silicon rectifier components by adopting two-stage cooling. It includes the primary cooler of the rectifier element, the return pipe of the primary cooler of the rectifier element is connected to one end of the first water pump, the other end of the first water pump is connected to the water inlet pipe, and the water inlet pipe passes through the plate heat exchanger for heat exchange, plate heat exchange The two ends of the heat exchange pipeline of the device are connected with the water air cooler. It solves the freezing problem of the traditional water-air cooling device of the rectifier in the cold area when the outdoor air-cooled heat exchange device freezes in case of power failure or maintenance, and ensures normal use in cold areas with harsh environments. It solves the problem that the traditional rectifier water-air cooling device corrodes the rectifier components due to the addition of antifreeze. Deionized pure water circulates in a closed environment, which ensures the quality of pure water and reduces the loss of pure water.

Description

technical field [0001] The invention relates to a device for solving the problem of antifreeze corrosion of silicon rectifier components, in particular to a device for solving the problem of antifreeze corrosion of silicon rectifier components by adopting two-stage cooling. Background technique [0002] The electrolytic aluminum DC production system is a very complicated and huge production system composed of hundreds of electrolytic cells connected in series. After it is put into production, continuous and uninterrupted production is required. The rectification system for power supply is 6 to 8 parallel high-power rectification The DC power supply system composed of the unit, the rectifier, one of the important components of the high-power rectifier unit, must be cooled by water when the diode rectifier element works normally. Since the components to be cooled by the rectifier are charged bodies, the requirements for cooling water are very high. It must be non-conductive de...

AI Technical Summary

Problems solved by technology

The traditional method is to use a water-water heat exchange device or a water-air heat exchange device, in which a water-air heat exchange device is used to install a water-air heat exchange cooling device for each rectifier unit. This method has the advantages of saving water resources and reducing rectification. The power outage probability and other advantages, but because the water-air heat exchange cooling device must be installed outdoors, in order to solve the antifreeze problem in cold areas, it is necessary to add antifreeze such as ethylene glycol in deionized pure water, which will cause cooling of the rectifier components Corrosion of the circulation pipeline causes pipeline leakage, corrodes rectifier components, and damages the insulation of the rectifier

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