组合式空调机组中表冷电动二通阀执行器固定调节装置的改进  

Improvement of Fixed Adjustment Device for Surface Cooling Electric Two-Way Valve Actuator in Combined Air Conditioning Unit

作　　者：欧阳文建 谢升 汤雄丽 OUYANG Wenjian;XIE Sheng;TANG Xiongli(Jinggangshan Cigarette Factory of China Tobacco Jiangxi Industrial LLC,Ji'an 343100,China)

机构地区：[1]江西中烟井冈山卷烟厂,江西吉安343100

出　　处：《机械工程师》2022年第5期127-128,共2页Mechanical Engineer

摘　　要：为有效减少组合式中央空调机组表冷电动二通阀机械故障频次,提升服务车间温湿度稳定性,对表冷电动二通阀执行器固定装置进行设计优化,增加一弧形楔体,使固定装置由线接触改为面接触;同时增加调节紧固螺钉,当弧形楔体磨损时,可对楔体进行紧固,保证贴合度,延长固定调节装置寿命,极大地减少表冷电动二通阀机械故障频次。应用结果表明,由固定楔体磨损导致的电动二通阀机械故障频次下降了94.87%,该方法可有效降低电动二通阀机械故障频次,消除由此带来的下游服务车间温湿度异常波动问题。In order to effectively reduce the mechanical failure frequency of the surface-cooled electric two-way valve of the combined central air-conditioning unit and improve the temperature and humidity stability of the service workshop,this paper carries out the design and optimization of the actuator fixture of the surface-cooled electric two-way valve. An arc-shaped wedge is added to change the fixing device from line contact to surface contact. At the same time, the adjustment tightening screw is added. When the arc-shaped wedge is worn, the wedge can be tightened to ensure the fit,prolong the life of the fixed adjustment device, and greatly reduce the frequency of mechanical failures of the surface-cooled electric two-way valve. The application results show that the mechanical failure frequency of the electric two-way valve caused by the wear of the fixed wedge is reduced by 94.87%. This method can effectively reduce the mechanical failure frequency of the electric two-way valve and eliminate the abnormal fluctuation of temperature and humidity in the downstream service workshop.

关 键 词：电动二通阀 固定装置 弧形楔体 调节紧固螺钉 机械故障 

分 类 号：TB657.2[一般工业技术—制冷工程]