超高精度大型标准恒温槽的设计与应用  

Design and Application of Ultra-High Precision Large Standard Constant Temperature Bath

作　　者：贾卿晨 王雪晨 JIA Qing-chen;WANG Xue-chen(Hefei Zhice Electronics Co.,Ltd.,Hefei 230000;Anhui Shui'an Construction Group Co.,Ltd.,Hefei 230000)

机构地区：[1]合肥智测电子有限公司,合肥230000 [2]安徽水安建设集团有限公司,合肥230000

出　　处：《环境技术》2025年第3期126-129,共4页Environmental Technology

摘　　要：恒温槽作为精密温控仪器,在工业计量领域具有重要价值。当前国产恒温槽在25 ℃水介质中的控温精度普遍停留在千分位水平。本研究通过创新性设计,开发了一种大容量(44 L)、宽温域(-5~110)℃的超高精度恒温槽。实验表明,在25 ℃水介质中,其温度稳定性优于±0.000 7 ℃,均匀性误差低于0.003 ℃,波动性控制在0.003 ℃/h以内。该设备采用多重制冷优化技术与智能控制算法(模糊PID协同遗传算法),显著提升了控温精度与能效比,填补了国内高精度恒温设备的空白。As a precision temperature control instrument,the constant temperature bath has important value in the field of industrial metrology.The current temperature control accuracy of domestically produced constant temperature baths in 25℃aqueous media gener ally remains at the thousandth level.This study developed an ultra-high precision constant temperature bath with a large capacity(44 L)and a wide temperature range(-5~110)℃through innovative design.Experiments have shown that in a 25℃aqueous medium,its temperature stability is better than±0.0007℃,the uniformity error is less than 0.003℃,and the fluctuation is controlled within 0.003℃/h.The device adopts multiple refrigeration optimization technology and intelligent control algorithm(fuzzy PID collaborative genetic algorithm),significantly improving temperature control accuracy and energy efficiency ratio,filling the gap of high-precision constant temperature equipment in China.

关 键 词：恒温槽 均匀性 超高精度 温度计量 

分 类 号：TH811[机械工程—仪器科学与技术]