AE94.3A型燃气轮机防喘放气阀失气开可靠性优化方案  

Optimization Plan for the Reliability of the AE94.3A Gas Turbine Anti-Surge Valve in Response to Loss-of-Air Open-Postition

作　　者：曹振宇 Cao Zhenyu(Hefei Wanneng Gas Power Generation Co.,Ltd.,Hefei 231121,China)

机构地区：[1]合肥皖能燃气发电有限责任公司,合肥231121

出　　处：《燃气轮机技术》2024年第4期64-68,共5页Gas Turbine Technology

基　　金：中科院率先行动百人计划(B类Y9291282U1)。

摘　　要：某重型燃气轮机防喘放气阀打开、关闭均依靠压缩空气驱动,不具备失气开保位能力。压缩空气失压时,压气机有发生喘振的重大安全隐患。对比早期同类型机组防喘放气阀气动执行机构设计方案:防喘放气阀依靠弹簧力打开,依靠压缩空气驱动关闭,具备失气开保位功能,在极端情况压缩空气失压时压气机也无喘振风险。计划将防喘放气阀气动执行机构变更回早期设计版本,以解决防喘放气阀不具备失气开保位问题。The anti-surge valve of a heavy-duty gas turbine was activated and deactivated using compressed air and lacks the capability to maintain its position in the absence of air.In the event of a compressed air pressure loss,the compressor faces a significant risk of surging.In contrast to the early design of pneumatic actuators for similar units anti-surge valves,which opened by spring force and closed with compressed air,featuring a loss-of-air open-position retention function,the earlier design eliminated the risk of compressor surging during compressed air pressure loss.We intend to revert the pneumatic actuator of the anti-surge valve to the earlier design to address its lack of loss-of-air open-position retention capability.

关 键 词：燃气轮机 防喘放气阀 喘振 气动执行机构 失气开 三断保护 

分 类 号：TK478[动力工程及工程热物理—动力机械及工程]