Device for reducing loss of forming heating loop of cover plate glass and control method thereof

Abstract

The invention discloses a device for reducing loss of a forming heating loop of cover plate glass and a control method thereof. The device includes a main loop unit and a control loop unit; the main loop unit includes a main loop power supply, and the main loop power supply is connected to a main loop isolating switch; the main loop isolating switch is connected to a main loop contactor; the mainloop contactor is connected to a power regulator; the power regulator is connected to a heater through a transformer; and the control loop unit controls the output power of the power regulator in themain loop unit. The problem that when the output power of the power adjustor is automatically regulated through a DCS, the output power cannot be regulated precisely, which results in loss of the heating loop in the prior art can be solved; the regulated power can be displayed in real time; and the method can achieve visual regulation of the power of the power regulator in the forming heating loopof the cover plate glass, and precise regulation of the power.

Description

technical field [0001] The invention belongs to the technical field of glass production control; in particular, it relates to a device for reducing the loss of a cover glass forming heating circuit; the invention also relates to a control method for reducing the loss of a cover glass forming heating circuit. Background technique [0002] The forming heating circuit of the cover glass is mainly electric heating, and the main heating elements are silicon carbide rods and iron-chromium-aluminum alloy heating wires. Although both are pure resistance heating loads, the loss is relatively small in theory, but in actual production, in order to meet the needs of process adjustment and achieve constant power heating control, it is necessary to manually / automatically adjust the power of the heating load. Therefore, the use of power regulator is essential. [0003] The power regulator in the prior art cannot directly display the adjusted power, so the operator does not know the adjust...

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Problems solved by technology

[0005] The invention provides a device for reducing the loss of the heating circuit in the forming of the cover glass; it solves the problem in the prior art that the output power cannot be adjusted accurately when the power regulator automatically adjusts the output power through the DCS, thus resulting in the loss of the heating circuit. At the same time, the purpose of being able to display and adjust the power in real time is achieved

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