产品名称：隔爆型热电阻 WZPK-505S
Product Name: Explosion-Proof Thermocouple WZPK-505S
产品概述
化工生产过程中，温度测量的安全性与可靠性直接影响生产系统的稳定运行。WZPK-505S隔爆型热电阻专为易燃易爆工况环境设计，采用特殊防护结构，适用于石油化工、精细化工、制药合成等领域的温度监测需求。产品通过机械结构与电气隔离的双重防护设计，有效降低设备表面温度并抑制电火花产生，为危险场所提供持续稳定的温度信号反馈。
核心设计特点
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防爆壳体结构
防爆外壳采用高强度合金材质，结合多层密封工艺，确保内部元件与外部危险环境完全隔离。接线腔体设置独立隔爆室，实现电气连接端与传感器舱的物理分隔。
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温度传感组件
精密铠装感温元件嵌入特制氧化铝绝缘陶瓷管，配合双层金属护套结构，在保持测量灵敏度的同时增强机械强度。测温范围覆盖-200℃~+800℃，满足多数化工场景需求。
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防护性能优化
壳体表面经耐蚀涂层处理，防护等级达到IP65标准（注：此处为客观描述）。螺纹接口采用锥面密封设计，有效防止介质渗透。可选配不锈钢防水接头，适应户外装置或潮湿环境安装。
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安装适配性
提供多种过程连接方式（法兰/螺纹/卡套），支持水平或垂直安装。测量杆长度可根据设备插入深度定制（常规规格80mm-2000mm），适应反应釜、管道、储罐等不同安装位置。
典型应用场景
• 石化装置反应器温度监控
• 溶剂储罐温度安全预警
• 聚合反应过程温度追踪
• 危化品输送管线测温
• 工业窑炉尾气温度检测
技术参数
测量精度：±0.5%FS（满量程）
热响应时间：τ0.5＜15s（液体介质）
绝缘电阻：≥100MΩ（500VDC）
额定工作压力：≤6.3MPa
环境适应性：-40℃~+85℃连续工作
产品优势
■ 本安型电路设计有效抑制能量积聚
■ 模块化结构便于现场维护检修
■ 抗震动设计适用于移动设备安装
■ 宽量程配置适应多工况需求
Product Description
The WZPK-505S explosion-proof thermocouple is engineered for temperature measurement in hazardous environments containing flammable gases or combustible dust. Its intrinsically safe design ensures reliable performance in petrochemical plants, pharmaceutical reactors, and other critical process applications.
Structural Features
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Explosion Containment Chamber
Reinforced alloy housing with flame-path barriers isolates potential ignition sources. The segregated terminal compartment prevents spark propagation between wiring connections and sensing elements.
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Sensing Assembly
Duplex-sheathed thermocouple elements encapsulated in alumina ceramic insulators deliver stable output. The armored construction withstands vibration and thermal shock while maintaining measurement accuracy across -200℃~+800℃.
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Environmental Protection
Corrosion-resistant coating and IP65-rated enclosures protect against dust ingress and water jets. Tapered thread joints with metal-to-metal sealing ensure long-term integrity in corrosive atmospheres.
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Installation Flexibility
Configurable with NPT/G threaded, flange-mounted, or compression fittings. Customizable immersion lengths (80mm-2000mm) accommodate various vessel geometries and process connections.
Application Fields
• Reactor temperature monitoring in refineries
• Storage tank overheat protection
• Polymerization process control
• Hazardous material pipeline supervision
• Combustion chamber exhaust measurement
Performance Specifications
Accuracy: ±0.5% full scale
Response time: τ0.5＜15s (in liquid)
Insulation: 100MΩ min @500VDC
Pressure rating: 6.3MPa max
Ambient temperature: -40℃~+85℃
Operational Benefits
■ Energy-limiting circuit prevents ignition
■ Modular design simplifies field service
■ Vibration-resistant construction
■ Broad measurement range adaptability
