Flash welding machine with high-power superbattery for energy storage and power supply

Abstract

Provided a flash welding machine with a high-power superbattery for energy storage and power supply. The flash welding machine comprises a battery energy storage power supply system (1) and a flash welding machine set (2), wherein an energy storage battery pack (11), a convergence cabinet (12), an energy storage converter (13) and an isolation transformer (14) are arranged in the battery energy storage power supply system (1); and a mobile alternating current welding machine (22), a mobile direct current welding machine (23) and a welding machine auxiliary equipment load (21) are arranged in the flash welding machine set (2). A flash welding machine system is assembled in a container form, can be fixed on a rail transit tool and is conveniently transported to a construction site, the energy storage superbattery is adopted for power supply, dense smoke, noise and harmful gas pollution brought when a traditional flash welding machine configured with a diesel generating set works are completely eliminated, greenness and environment protection are achieved, the construction environment is improved, and steel rail welding construction of subways and tunnels is extremely facilitated.

Description

technical field [0001] The invention belongs to the technical field of railway operation, and more specifically relates to a flash welding machine powered by energy storage of a high-power super battery. Background technique [0002] The basic principle of the rail flash welding machine is to use the heat generated when the current passes through the resistance to melt the weldment, and then through upsetting to achieve the purpose of welding. Generally, mobile rail flash welding machines can be divided into two types according to the type of power supply, one is AC power supply and the other is DC power supply. At present, mobile rail flash welding machines generally use AC power and diesel generators to generate electricity. [0003] Rail flash welding machine is a high-power special welding equipment, which has the characteristics of low energy consumption, high welding efficiency and good welding quality. The power supply of the rail flash welding machine directly affe...

AI Technical Summary

Problems solved by technology

Unbalanced three-phase load on the low-voltage side

In the pre-flash and upsetting stages, the diesel generator set is in a short-term overload condition. This power supply transition process directly affects the flash welding stability and upsetting speed, and then affects the quality of the joint. Due to the short-term overload of the diesel engine, the cylinder block, Excessive wear of piston rings and crankshafts increases the clearance of the cylinder body, decreases the compression ratio and causes insufficient fuel combustion, black smoke, increased noise, shortened life of the diesel engine, and increased emissions of toxic gases such as carbon monoxide, etc.

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