描述
1.产品定位与核心功能
VALM-818440推测为高温自适应型阀门定位器，定位炼油厂重油催化裂解、玻璃熔炉气流调控及太阳能光热电站导热油系统，聚焦极端温度补偿、热膨胀自适应控制与集成式热应力监测。其核心功能包括：
控制性能：
-位置精度：±0.004%（全温区动态补偿）；
-响应时间：≤3ms（紧急降温模式）。
环境适应性：
-温度范围：-40°C至+800°C（短时耐火试验通过）；
-材料热导率：碳化硅复合阀芯（热膨胀系数<2×10⁻⁶/°C）。
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：FOUNDATION Fieldbus（支持PA/PA intrinsic安全）；
-输出类型：锻造镍基合金阀体+碳化钨阀芯（耐硫化氢应力腐蚀）；
供电要求
-电压范围：24–52V DC（宽温区稳定性设计）；
-功耗：≤10W（峰值），休眠模式<0.03W；
通信接口
-数字总线：Profinet IO（实时控制层集成）；
-无线扩展：LoRaWAN（远程热成像监控）。
3.功能特性
高温安全设计：
-结构特性：分段式阀杆（陶瓷纤维隔热层+主动气幕冷却）；
-密封技术：石墨浸渍四氟填料（耐1000°C瞬态冲击）。
智能热管理：
-算法支持：基于热电偶阵列的三维温度场建模；
-自适应PID：动态调整阀门开度以平衡热应力梯度。
介质兼容性：
-耐腐蚀涂层：阀内件采用DLC（类金刚石碳）镀层（耐芳香烃腐蚀）；
-防结焦设计：表面喷砂处理（粗糙度Ra≤0.8μm，减少重油沉积）。
4.典型应用场景
能源与化工：
-催化裂解装置进料阀（耐500°C重油流）；
-乙烯裂解炉急冷阀（快速切换防止聚合物生成）。
新型能源：
-光热电站熔盐控制阀（耐600°C导热油循环）；
-氢能电解槽冷却阀（防氢脆设计）。
特种工业：
-玻璃窑炉助燃空气阀（耐火焰冲刷）；
-焚烧炉烟气排放阀（兼容SO₂/NOx腐蚀环境）。
1.Product positioning and core functions
VALM-818440 is speculated to be a high-temperature adaptive valve locator,which locates heavy oil catalytic cracking in the refinery,glass furnace airflow regulation and solar photothermal power station thermal oil system,focusing on extreme temperature compensation,thermal expansion adaptive control and integrated thermal stress monitoring.Its core functions include:
Control performance:
-Position accuracy:±0.004%(dynamic compensation in full temperature zone);
-Response time:≤3ms(emergency cooling mode).
Environmental adaptability:
-Temperature range:-40°C to+800°C(short-time fire resistance test passes);
-Material thermal conductivity:Silicon carbide composite valve core(thermal expansion coefficient<2×10⁻⁶/°C).
2.Key technical parameters
Project Typical specifications(refer to similar products)
Input/Output
-Input signal:FOUNDATION Fieldbus(supports PA/PA intrinsic security);
-Output type:Forged nickel-based alloy valve body+tungsten carbide valve core(resistant to hydrogen sulfide stress corrosion);
Power supply requirements
-Voltage range:24–52V DC(wide temperature zone stability design);
-Power consumption:≤10W(peak),sleep mode<0.03W;
Communication interface
-Digital bus:Profinet IO(real-time control layer integration);
-Wireless extension:LoRaWAN(Remote Thermal Imaging Monitoring).
3.Functional characteristics
High temperature safety design:
-Structural characteristics:segmented valve stem(ceramic fiber insulation layer+active air curtain cooling);
-Sealing technology:Graphite-impregnated tetrafluorofiller(resistant to 1000°C transient impact).
Intelligent thermal management:
-Algorithm supports:three-dimensional temperature field modeling based on thermocouple array;
-Adaptive PID:Dynamically adjust the valve opening to balance the thermal stress gradient.
Media Compatibility:
-Corrosion-resistant coating:The inner parts of the valve are coated with DLC(diamond-like carbon)(resistant to aromatic hydrocarbon corrosion);
-Anti-coking design:surface sandblasting treatment(roughness Ra≤0.8μm,reducing heavy oil deposition).
4.Typical application scenarios
Energy and Chemical Industry:
-Catalytic cracking device feed valve(resistant to heavy oil flow of 500°C);
-Ethylene cracking furnace quench valve(quick switching to prevent polymer generation).
New energy:
-Molten salt control valve of photothermal power station(resistant to 600°C thermal oil circulation);
-Hydrogen electrolytic tank cooling valve(anti-hydrogen embrittlement design).
Specialty Industry:
-Glass kiln combustion air valve(flame resistant);
-Incinerator flue gas discharge valve(compatible with SO₂/NOx corrosion environment).
