避难硐室防护密闭门密封性能试验研究

摘要

A new protective sealing door for mine refuge chamber was designed;the theoretical analysis and experimental study on variety of rubber strips showed that the optimum compression rate of the rectangular silicone rubber sealing strip with the hardness of 20-25 degree is 15%-25% under the static sealing condition. On this basis, a sealing structure was designed according to the optimum compression amount and in consideration of some factors such as the machining error;experimental study was made on the air tightness of the protective sealing door.%　　设计了一种新型矿井避难硐室防护密闭门，通过对各种密封胶条的理论分析和实验研究表明：硬度为20~25度的矩形硅橡胶密封胶条，在静密封工况下，最佳压缩率为15%~25%。根据最佳压缩量范围并考虑机械加工误差等主要因素，设计了密封结构；通过密封试验，对防护密闭门的关键指标气密性进行了研究，验证了密封结构设计的合理性和可靠性。