Single crystal furnace capable of removing no-load electric energy loss in blow-out process

Abstract

The invention relates to a single crystal furnace capable of removing no-load electric energy loss in a blow-out process. The single crystal furnace comprises a furnace body, a single crystal furnace control cabinet and a transformer control cabinet, wherein the transformer control cabinet comprises a heating transformer and a filtering cabinet circuit breaker which is used for controlling the switch on / off of the power supply of a heating transformer, the furnace body and the single crystal furnace control cabinet are arranged on a single crystal furnace service platform, the single crystal furnace service platform and the transformer control cabinet are arranged on upper and lower different floors, the filtering cabinet circuit breaker is connected with a group of electric operating mechanisms for switching on and off the filtering cabinet circuit breaker, and the electric operating mechanisms are provided with electric switch control boxes which are arranged on the single crystal furnace control cabinet. According to the single crystal furnace capable of removing the no-load electric energy loss in the blow-out process, disclosed by the invention, an electric control circuit of the single crystal furnace is improved, so that the electric energy loss of the heating transformer in a blow-out and no-load process is eliminated; control components of the heating transformer and the single crystal furnace control cabinet are integrated, so that the control is convenient, and the error is not easy to generate; and by the fact that the no-load current of the heating transformer in the blow-out process is 8A, about 30 kilowatt hours of electricity can be saved generally in each blow-out process.

Description

technical field [0001] The invention relates to single crystal furnace equipment, in particular to a single crystal furnace which can eliminate no-load electric energy loss when the furnace is shut down. Background technique [0002] Single crystal silicon pull growth furnace, used for pulling 6-8 inch solar and semiconductor grade silicon single crystal. It consists of three parts: furnace body, single crystal furnace control cabinet, and transformer control cabinet. The single crystal furnace control cabinet is located on the platform on the second floor and is mainly responsible for furnace body control. The transformer control cabinet is located on the bottom platform (ground), which is a high-power rectification device. The power of the heating transformer is 160KW, and the heating method is three-phase six-pulse rectification. The heating is controlled by controlling the trigger signal of the thyristor. [0003] In the process of silicon single crystal production, dep...

AI Technical Summary

Problems solved by technology

[0005] (1) Increased the workload of single crystal furnace operators;

[0006] (2) Due to the negligence of the operator, the power supply of the heating transformer that has not been shut down by mistake is prone to production accidents that cause heavy economic losses;

[0007] (3) The transformer control cabinet adopts manual power-off, which is prone to electric shock accidents

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