Tunnel type sterilization oven heating monitoring control system and method

Abstract

The invention discloses a monitor control system and method, and especially relates to a tunnel-type sterilization drying oven heating monitor control system and method. The system comprises a controller. The controller is connected with a human-computer interaction interface, a current detection assembly and an alarm apparatus. The controller comprises a comparison module, a recording module, a signal conversion module and a peripheral circuit. The current detection assembly is connected with the signal conversion module; and the signal conversion module is connected with the comparison module and the recording module. The system and method is simple in principle and simple in structure; a phase current of a heating wire is collected and recorded in real time, and meanwhile an interphase unbalanced current is calculated; the interphase unbalanced current is then compared with a set phase current change limitation value and an interphase unbalanced current limitation value; and if the interphase unbalanced current value surpasses the set limitation value, the system sends a corresponding alarm signal to notify production personnel to perform corresponding processing. Therefore, the hidden trouble is effectively prevented, and production is guaranteed to run stably.

Description

technical field [0001] The invention discloses a monitoring control system and method, in particular to a heating monitoring control system and method for a tunnel type sterilization oven. Background technique [0002] In the production of existing ovens, due to the high output requirements and long running time, the heating tubes will inevitably be damaged. In the prior art, an ammeter is used to display the total current value or an indicator light is used to display the heating status of each heating tube. The first method is difficult to judge the damage of the heating tube by human observation because of the instability of the current and the imbalance of the phase-to-phase current. The latter method is complicated to connect and needs to increase a lot of cost. Both methods require regular human inspections. Only when the heating pipe is damaged can it be found, which brings great hidden dangers to safe production. Contents of the invention [0003] Based on the abo...

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Problems solved by technology

[0002] In the production of existing ovens, due to the high output requirements and long running time, the heating tubes will inevitably be damaged. In the prior art, an ammeter is used to display the total current value or an indicator light is used to display the heating status of each heating tube. The first method is difficult to judge the damage of the heating tube by human observation because of the instability of the current and the imbalance of the phase-to-phase current. The latter method is complicated to connect and needs to increase a lot of cost. Both methods require regular human inspections. Only when the heating tube is damaged can it be found, which brings great hidden dangers to safe production

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