汽轮机备件定制生产

汽轮机超速跳闸装置与转速开关

Indicative Price Range

₹12K–₹95K每套

机械式及电液式跳闸装置;API 670等级

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Prices vary by turbine model, OEM spec, material grade, and order quantity. The range shown reflects our typical market spread — contact us for a firm quotation.

适用于汽轮机防止灾难性飞车的超速跳闸装置及转速开关。机械式超速跳闸总成采用安装于汽轮机轴上的离心式不平衡柱塞或偏心销——当轴转速超过跳闸阈值(通常为额定转速的110–112%)时,离心力克服预设弹簧力,柱塞伸出并撞击跳闸杆,瞬间泄放液压跳闸油总管并关闭紧急遮断阀(ESV)。电子式超速跳闸装置采用磁性拾取传感器(MPU)及转速监测继电器,提供独立的SIL等级跳闸输出。可作为原厂匹配的替换总成供货,亦可为老旧机械调速汽轮机提供升级版电子跳闸装置。

Primary Industrial Application

每台汽轮机的强制安全装置——当负荷跳闸后调速器未能控制转速时,可保护叶片、机壳及联接被驱动设备(发电机、压缩机、水泵)免受损毁。在汽轮机大修期间至关重要:超速跳闸柱塞弹簧、衬套及调节总成需在每次大修时进行检查、尺寸检测及更换。同时也是运行测试所必需的——每年或每次停机时通过受控升速至跳闸设定点进行超速跳闸测试。Keshav Enterprises供货范围包括:机械式跳闸柱塞总成(含弹簧、衬套及调节螺母)、电子转速继电器(兼容伍德沃德ProTech)、用于转速信号输入的磁性拾取传感器(MPU),以及液压跳闸回路的跳闸油泄放阀。

Mechanical Trip Type汽轮机轴内的偏心销/不平衡离心柱塞
Typical Trip Setpoint额定转速的110–112%(超速10–12%)
Trip Repeatability±2%(机械式匣体)
Electronic Trip Response<100毫秒(转速继电器至电磁输出)
Trip Oil Pressure5–25巴(低压液压跳闸总管)
Est. Price₹12K – ₹95KIndicative estimate · contact for firm quote
Lead TimeStocked / 2–4 weeks

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