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超临界流体染色具有高压和间歇操作的特点,染色主要设备染色釜应具有快开和密封的结构形式,以解决染色过程中频繁启闭端盖后仍能实现密封,提高染色效率。超临界流体萃取釜的操作环境与超临界流体染色相似,通过对成熟应用的超临界萃取釜快开密封结构的改进实现染色釜操作的快开和可靠密封。在筒体阶梯结构上采用改性的C形密封圈和O形密封圈两道密封,利用釜内高压的特点,实现可靠的高压自紧密封效果。改进的卡箍连接结构有连锁保护功能,在端盖达到预定位置时关闭升压,在筒体内部压力完全释放后开启端盖。多次试验表明,这种快开密封结构具有密封圈拆装方便,开合容易,密封安全可靠的特点。
Supercritical fluid dyeing with high pressure and intermittent operation of the characteristics of the main equipment dyeing dyeing vessel should have a quick open and sealed structure to solve the frequent opening and closing during the dyeing process can still achieve seal, improve dyeing efficiency. The operating environment of the supercritical fluid extraction kettle is similar to the supercritical fluid dyeing. The fast open and reliable sealing of the dyeing kettle operation is realized through the improvement of the quick-open sealing structure of the mature supercritical extraction kettle. In the cylinder ladder structure using modified C-ring and O-ring seal two, the use of autoclave features to achieve reliable high-pressure self-tight sealing effect. The improved clamp coupling structure has a chain protection function, and the pressure is turned off when the cover reaches a predetermined position, and the cover is opened after the internal pressure in the cylinder is completely released. Multiple tests show that the quick-open seal structure has the advantages of convenient disassembly and assembly, easy opening and closing, and safe and reliable sealing.