数字式测温系统在铜合金炉上的应用与设计

数字式测温系统在铜合金炉上的应用与设计

吴小渊

(铜陵金威铜业有限公司, 安徽 铜陵244000)

摘要：工频炉及电源系统的冷却水回路温度检测点多,传统温度传感器布线多而繁杂,无法实现全面监控所有冷却水回路的温度.DS18B20数字式温度传感器采用单总线技术,只需一根总线,就能够连接128个传感器,解决了测温线路繁杂而无法布线的问题.运用组态王软件,采集并归档各测量点的温度测量数据,根据其温度变化趋势分析,及时制定冷却水回路的清理计划,避免因电腐蚀而造成水路堵塞事故,在感应熔炼及感应加热设备上具有参考价值.

关键词：测温系统; 温度传感器； 单总线; 铜合金炉

收稿日期：2014-11-18

作者简介：吴小渊(1972—),男,工程师,主要从事中频电源及电气自动化应用的研究. E-mail:wxyxin@163.com

中图分类号：TG 174

文献标志码：A

Abstract：The cooling water circuit of power frequency furnace and power supply system has a lot of temperature detecting points,the traditional temperature sensor wiring is more and more complicated,and can not realize the full monitoring of the temperature of the cooling water circuit.DS18B20 digital temperature sensor with single bus technology,just a bus,it is able to connect 128 sensors,solve the problem of the temperature measurement circuit is complex and can not wiring.Use kingview software,to collect and archive all temperature measurements.According to the temperature change trend analysis,cooling water circuits will be planned to clean up in time,avoid the water blockage accident caused by electrolytic corrosion,in the induction mealtime and induction heating equipment has the very big promotion value.

Keywords：temperature measurement system; temperature sensor; 1-wire bus; alloy furnace of copper

Application and Design of Digital Temperature Measurement System on Alloy Furnace of CopperWU Xiaoyuan

(Tongling JINVI Copper Co., Ltd., Tongling 244000, China)

0引言

大型感应电炉功率从几百kW到数千kW不等,其功率元件发热量大,对散热效果要求较高,如线圈、水套、可控硅、电容器和电抗器等都用水冷,通常采用冷却水封闭式循环.受高温、水质变化等因素的影响,使用一段时间后水路会出现堵塞现象,尤其在有整流逆变电源的冷却水回路中,直流电压会对金属管件产生电腐蚀效应,日积月累之后,管路进出的连接部位慢慢被腐蚀物堵塞,如不及时发现将烧坏功率元件,造成短路事故.为避免设备事故,传统的做法有两种:第一种在冷却水回路的回水管路上安装温度开关,发生堵塞时水温度升高……