| 制冷机组冷却水温度控制系统的改进 |
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| 引用本文： | 罗富德,苏建国,谢勇.制冷机组冷却水温度控制系统的改进[J].烟草科技,2006(2):28-30. |
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| 作者姓名： | 罗富德 苏建国 谢勇 |
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| 作者单位： | 汉中卷烟二厂,陕西省南郑县大河坎镇东大街28号,723102 |
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| 摘 要： | 在不同负荷、不同季节和不同环境温度下,制冷机组的冷却塔风机恒速运行无法使冷却水温度控制在需要范围内。采用变频调速技术对冷却水控制系统进行了改进,选用热敏元件作为温度传感器在线检测冷却水温度,通过水温信号控制变频器的输出频率,调节风机转速和冷却塔散热量,从而将冷却水温度控制在允许范围内。
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| 关 键 词： | 制冷机组 变频器 温度传感器 散热量 |
| 文章编号： | 1002-0861(2006)02-0028-03 |
| 修稿时间： | 2005年11月9日 |
Improvement of Cooling Water Temperature Control of Refrigerating Systems |
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| LUO FU-DE,SU JIAN-GUO,XIE YONG.Improvement of Cooling Water Temperature Control of Refrigerating Systems[J].Tobacco Science & Technology,2006(2):28-30. |
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| Authors: | LUO FU-DE SU JIAN-GUO XIE YONG |
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| Abstract: | The temperature of cooled water could not be maintained in a desired range by a fan running at constant-speed in a cooling tower under different loads and environmental temperatures. The system was modified with frequency conversion technology, a thermistor was used to detect the temperature of cooled water, and control the output frequency of a frequency converter via the temperature signal, thereby to regulate the rotating speed of the fan and the heat dissipation of the cooling tower, and control the temperature of cooled water within the tolerable range. |
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| Keywords: | Refrigerating systems Frequency converter Temperature sensor Heating dissipation amount |
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