描述
1.产品定位与核心功能
VALM-818400推测为耐腐蚀高温型阀门定位器,定位石油化工、电力及极端化学环境,聚焦800°C高温工况适配、抗硫化物腐蚀涂层与热力学动态平衡。其核心功能包括:
控制性能:
-位置精度:±0.06%(全行程范围内,抗热漂移);
-响应时间:≤25ms(高温介质下稳定响应)。
环境适应性:
-工作温度:-40°C至+850°C(宽温区耐高温型);
-介质兼容性:含H₂S酸性气体、高温蒸汽、熔融盐等。
2.关键技术参数
项目典型规格(参考同类产品)
输入/输出
-输入信号:4–20mA DC(支持HART、EtherNet/IP、PROFINET);
-输出类型:气动放大器+镍基合金阀杆(热膨胀系数13×10⁻⁶/°C);
供电要求
-电压范围:24V DC(防爆认证Ex ia IIC T6);
-功耗:≤10W(峰值),休眠模式<0.05W;
通信接口
-数字总线:OPC UA、Modbus TCP/IP;
-无线扩展:NB-IoT(远程监测适用)。
3.功能特性
耐腐蚀与高温材料体系:
-核心材料:Haynes 230合金(抗硫化物腐蚀速率<0.1mm/year)+陶瓷绝缘层;
-密封设计:石墨浸渍PTFE填料(耐800°C长期使用)。
热力学管理:
-动态平衡:内置热管散热器(导热系数≥100 W/m·K);
-应变补偿:光纤光栅传感器实时监测阀体形变(误差<±0.02mm)。
安全与诊断:
-腐蚀监测:电化学阻抗谱(EIS)在线评估材料降解;
-超温保护:双金属片触发紧急断电(阈值可设至900°C)。
4.典型应用场景
能源与化工:
-燃气轮机排气阀(耐高温含硫燃气);
-加氢裂化反应器进料阀(兼容H₂+H₂S混合介质)。
电力与环保:
-煤气化炉合成气调节阀(耐渣油结焦);
-焚烧炉烟气控制阀(抗氯离子腐蚀)。
特种工艺:
-太阳能光热熔盐阀(耐600°C硝酸钾/钠混合盐);
-半导体扩散炉工艺气体阀(超高温真空工况)。
1.Product positioning and core functions
VALM-818400 is speculated to be a corrosion-resistant high-temperature valve positioner,which locates petrochemical,power and extreme chemical environments,focusing on the 800°C high-temperature working conditions adaptation,sulfide corrosion-resistant coating and thermodynamic dynamic balance.Its core functions include:
Control performance:
-Position accuracy:±0.06%(within the entire stroke range,heat drift resistance);
-Response time:≤25ms(stable response under high temperature medium).
Environmental adaptability:
-Operating temperature:-40°C to+850°C(wide temperature zone high temperature resistance type);
-Media compatibility:contains H₂S acid gas,high temperature steam,molten salt,etc.
2.Key technical parameters
Project Typical specifications(refer to similar products)
Input/Output
-Input signal:4–20mA DC(supports HART,EtherNet/IP,PROFINET);
-Output type:pneumatic amplifier+nickel-based alloy stem(thermal expansion coefficient 13×10⁻⁶/°C);
Power supply requirements
-Voltage range:24V DC(Explosion-proof Certified Ex ia IIC T6);
-Power consumption:≤10W(peak),sleep mode<0.05W;
Communication interface
-Digital bus:OPC UA,Modbus TCP/IP;
-Wireless extension:NB-IoT(for remote monitoring).
3.Functional characteristics
Corrosion-resistant and high-temperature material system:
-Core materials:Haynes 230 alloy(sulfide corrosion resistance rate<0.1mm/year)+ceramic insulation layer;
-Seal design:Graphite impregnated PTFE filler(resistant to 800°C long-term use).
Thermodynamics management:
-Dynamic balance:built-in heat pipe radiator(thermal conductivity≥100 W/m·K);
-Strain compensation:The fiber grating sensor monitors the valve body deformation in real time(Error<±0.02mm).
Safety and Diagnosis:
-Corrosion Monitoring:Electrochemical Impedance Spectroscopy(EIS)online evaluation of material degradation;
-Overtemperature protection:Bimetal plate triggers emergency power outage(threshold can be set to 900°C).
4.Typical application scenarios
Energy and Chemical Industry:
-Gas turbine exhaust valve(resistant to high temperature sulfur-containing gas);
-Hydrocracking reactor feed valve(compatible with H₂+H₂S mixed media).
Electricity and environmental protection:
-Syngas regulating valve for coal gasification furnace(residue coking);
-Incinerator flue gas control valve(resistant to chloride ion corrosion).
Special technology:
-Solar photothermal molten salt valve(resistant to 600°C potassium nitrate/sodium mixed salt);
-Semiconductor diffusion furnace process gas valve(ultra-high temperature vacuum condition).