电站测温用热电阻WZP2-330B 供应
产品概述
WZP2-330B电站测温用热电阻是专为电力工业设计的温度测量传感器,采用高品质铂电阻元件(Pt100)作为感温核心,适用于电站锅炉、汽轮机等设备的温度监测。该产品采用不锈钢保护管和防水式接线盒设计,能够稳定测量-200℃至420℃范围内的液体、气体介质及固体表面温度,满足30万至60万千瓦发电机组配套需求。其双支结构支持两套显示或控制系统同步监测同一测点,提升数据可靠性。111326
技术特点
产品采用深盲孔工艺加工的整体式保护管,兼具耐高压和抗冲击性能,机械强度达到静态外压1.5倍公称压力。热响应时间在保护管直径16mm时不超过90秒,12mm规格可缩短至45秒。感温元件通过均匀双绕工艺确保测量精度,B级精度下允差为±(0.30+0.005|t|)℃。绝缘性能优异,在15-35℃环境温度下,电极与套管间绝缘电阻≥100MΩ(测试电压10-100VDC),符合电站复杂工况要求。61618
结构优势
WZP2-330B采用活动法兰安装方式,配备不锈钢接线盒和防溅结构,便于在蒸汽管道等高湿度环境中使用。保护管材质可选1Cr18Ni9Ti或0Cr18Ni12Mo2Ti不锈钢,适应不同腐蚀环境。产品采用模块化设计,测温元件与保护管可分离,无需停机即可快速更换元件,显著降低维护成本。标准总长规格涵盖300-1150mm,插入深度可根据保温层厚度定制,适配多种安装场景。51721
应用领域
本产品广泛应用于火力发电厂锅炉温度监测、汽轮机轴承温度检测、蒸汽管网温度控制等场景,特别适用于存在振动、高压或腐蚀性介质的工业环境。其稳定性和抗震性能使其成为替代进口测温仪表的优选方案,在石化、冶金等高温高压领域也有成熟应用案例。21422
Product Overview
The WZP2-330B thermal resistor for power plant temperature measurement is specifically engineered for monitoring critical equipment such as boilers and steam turbines. Featuring dual Pt100 sensing elements housed in stainless steel protective tubes, it delivers reliable temperature data within -200°C to 420°C range. The waterproof junction box and flange mounting design ensure stable operation in high-humidity environments, making it suitable for 300MW-600MW generating units. Its dual-channel configuration allows simultaneous connection to multiple control systems. 1126
Technical Features
Manufactured with deep-blind-hole technology, the integrated protection tube exhibits exceptional pressure resistance (1.5x nominal pressure) and impact tolerance. The thermal response time is optimized to 90 seconds (16mm diameter) or 45 seconds (12mm version). Precision-wound sensing elements achieve B-grade accuracy of ±(0.30+0.005|t|)°C. Superior insulation maintains ≥100MΩ resistance between electrodes and sheath under 10-100VDC test voltage, ensuring performance in harsh plant conditions. 613
Structural Advantages
The removable flange design facilitates easy installation on steam pipelines, while the splash-proof junction box protects internal components. Available in 1Cr18Ni9Ti or 0Cr18Ni12Mo2Ti stainless steel, the protection tube resists various corrosive media. The separable sensing assembly enables quick maintenance without system shutdown, significantly reducing operational downtime. Customizable insertion depths (standard lengths 300-1150mm) accommodate diverse installation requirements. 521
Applications
This thermal resistor is widely implemented in coal-fired plants for boiler wall temperature monitoring, turbine bearing protection, and steam header measurement. Its vibration-resistant construction and high-pressure endurance make it ideal for petrochemical reactors, metallurgical furnaces, and other demanding industrial processes where reliable temperature data is crucial for operational safety and efficiency. 214
电站测温用热电阻
WZC-130B,WZP-220B,WZP-221B,WZP-230B,WZP-231B,WZP2-220B,WZP2-221B,WZP2-230B,WZP2-231B,WZP-220AB,WZP2-220AB。WZC-220B,WZC-230B,WZC-220AB,WZP-320B,WZP-321B,WZP-330B,WZP-331B,WZP2-320B,WZP2-321B,WZP2-330B,WZP2-330B,WZC-320B,WZC-320B,WZP-420B,WZP-421B,WZP-430B,WZP-431B,WZP2-420B,WZP2-421B,WZP2-430B,WZP2-431B,WZP-42AB,WZP2-42AB,WZC-420B,WZC-430B,WZP-420B,WZP-421B,WZP-430B,WZP-430B,WZP-431B,WZP2-420B,WZP2-421B,WZP2-430B,WZP2-431B,WZP-42AB,WZP2-42AB,WZP-420B,WZC-430B,WZP-621B,WZP-621AB,WZP-631B,WZP2 -621B,WZP2 -621B,WZP2 -631B,WZP-621B,WZP-631B,WZP-621B,WZP2 -631B,WZP-621AB,WZP2-621AB,WZP-002,WZP-003,WZP-003A,WZCM-201,WZPM-201,WZPM-201,WZP-270S,WZP-26S,WZP-236SB,
量程规格
名 称 分度号 测温范围 ℃ 精度等级 允 差Δt
镍铬-镍硅热电偶 K 0~800 2 ±2.5℃或 ±0.75%t
镍铬-铜镍热电偶 E 0~600 2 ±2.5℃或 ±0.75%t
铂热电阻 Pt100 -200~500 B ±(0.3+0.005|t|)
注:t为感温元件实测温度或实测温度的值。
□公称压力
一般是指在常温下,保护管所能承受的静态外压而不破裂,试验压力一般采用公称压力的1.5倍。实际上,允许工作压力不仅与保护管材料、直径、壁厚有关,而且还与其结构形式、安装方法、置入深度以及被测介质的流速、种类有关。
□热电偶绝缘电阻
常温绝缘电阻的试验电压为直流500V。测量常温绝缘电阻的大气条件为:温度15~35℃,相对湿度45%RH,大气压力86~106kPa。
对于长度超过1米的热电偶,它的常温绝缘电阻值与其长度的乘积应不小于100MΩ•m,
即:Rr•L>100MΩ•mL>1m
式中:Rr-热电偶的常温绝缘电阻值,MΩ;
L-热电偶的长度,m。
对于长度等于或不足1米的热电偶,它的常温绝缘电阻值应不小于100MΩ。
□热电阻绝缘电阻
常温绝缘电阻的试验电压可取直流10~100V任意值,环境温度应在15~35℃范围内,相对湿度应不大于80%RH,常温绝缘电阻值应不小于100MΩ。
□热电阻允许通过电流
通过铂电阻的测量电流大不超过5mA。
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