Copper bush convenient to replace in system operation

The invention discloses a copper sleeve convenient to replace in system operation. The copper sleeve comprises a copper sleeve base with a groove and a plurality of semi-rings. Wherein the groove is located at the lower end of the copper bush substrate, the plurality of semi-rings are sleeved in the groove, and the plurality of semi-rings form a circular ring. According to the device, the copper sleeve can be replaced without replacing the whole valve, disassembling the valve and stopping the system. Machining is simple, on-site replacement is convenient and easy, and the valve can be normally operated after the copper sleeve is replaced. 本发明公开了一种在系统运行中便于更换的铜套，包括：带有凹槽的铜套基底和多个半环；其中，所述凹槽位于所述铜套基底的下端，所述多个半环套装于所述凹槽内，所述多个半环构成圆环。该装置无需更换整只阀门，也无需解体阀门、无需停运系统就能更换铜套。加工简单，现场更换方便易行，铜套更换后阀门可以正常操作。