工业热电偶
时间：2011-07-17 阅读：1385
工业热电偶
WR系列与显示仪表配套，在-200~1600℃范围内对气体、液体以及固体表面温度进行检测，广泛应用于航空、原子能、石油、化工、治金、机械等工业部门和科技领域。
通常由按线盒、保护管、绝缘瓷管、热电极和安装固定装置组成，其结构见图。
● 主要特点：测量范围大、使用寿命长、安装使用方便。
● 主要技术指标：
种类及允差等级（参比端为0℃）
| 品种 | 型号 | 分度号 | Ⅰ级 | Ⅱ级 | Ⅲ级 | 执行标准 | |||
| 测温范围℃ | 允差℃ | 测温范围℃ | 允差℃ | 测温范围℃ | 允差℃ | ||||
| 镍铬-镍硅 | WRK | K | -40~1100 | ±1.5或 | -40~1200 | ±2.5或 | -200~40 | ±2.5或±1.5％t | JB/T9238-1999 |
| 镍络硅-镍硅 | WRN | N | -40~1100 | -40~1300 | -200~40 | ||||
| 镍络-康铜 | WRE | E | -40~800 | -40~900 | / | ||||
| 铁-康铜 | WRJ | J | -40~750 | -40~750 | -200~40 | ||||
| 铜-康铜 | WRT | T | -40~350 | ±1.5或 | -40~350 | ±1.0或 | / | / | |
| 铂铑10-铂 | WRS | S | 0~1100 | ±1.0或 | 0~1600 | ±1.5或 | / | ||
| 铂铑13-铂 | WRR | R | 0~1100 | 0~1600 | / | ||||
| 铂铑30-铂铑6 | WRB | B | ／ | ／ | 600~1700 | 600-1700 | ±4.0或 | ||
保护管直径、长度及插入深度 mm
| Φ16（单层管） | Φ20 | Φ25（双层管） | 锥形管 | ||||
| 总长 | 插入深度 | 总长 | 插入深度 | 总长 | 插入深度 | 总长 | 插入深度 |
| 225 | 75 | 225 | 75 | / | / | 225 | 75 |
| 250 | 100 | 250 | 100 | / | / | 250 | 100 |
| 300 | 150 | 300 | 150 | / | / | 300 | 150 |
| 350 | 200 | 350 | 200 | / | / | 350 | 200 |
| 400 | 250 | 400 | 250 | 400 | 250 | 400 | 250 |
| 450 | 300 | 450 | 300 | 450 | 300 | 450 | 300 |
| 500 | 350 | 500 | 350 | 500 | 350 | 500 | 350 |
| 550 | 400 | 550 | 400 | 550 | 400 | 550 | 400 |
| 650 | 500 | 650 | 500 | 650 | 500 | / | / |
| 900 | 750 | 900 | 750 | 900 | 750 | / | / |
| 1150 | 1000 | 1150 | 1000 | 1150 | 1000 | / | / |
| 1650 | 1500 | 1650 | 1500 | 1650 | 1500 | / | / |
| 2150 | 2000 | 2150 | 2000 | 2150 | 2000 | / | / |
| 2650 | 2500 | 2650 | 2500 | / | / | / | / |
说明：·插入深度I＝L－L0，L－总长，L0―保护管外露长度，可取100、150、200、250mm，通常取150mm；
插座式接线盒L0可取30、50、100mm，通常取100mm。
Φ16金属保护管总长无2650mm这一长度，其它规格协商供货。
常温绝缘电阻
| 长度 | 常温绝缘电阻 | 试验电压 |
| L≤1m | 100MΩ | 500±50V |
| L>1m | 100 MΩ·m |
上限温度绝缘电阻
| 上限温度 | 试验温度 | 绝缘电阻 |
| 100≤tm＜300 | t=tm | 10 |
| 300≤tm＜500 | t=tm | 2 |
| 500≤tm＜850 | t=tm | 0.5 |
| 850≤tm＜1000 | t=tm | 0.08 |
| 1000≤tm＜1300 | t=tm | 0.02 |
| tm≥1300 | t=1300 | 0.02 |
的热响应时间
| 保护管 | 热响应时间s | ||
| 代号 | 外径mm | 金属管 | 非金属管 |
| 0 | Φ16 | ≤180 | ／ |
| 1 | Φ20 | ≤240 | / |
| 2 | Φ16 | ／ | ≤240 |
| 3 | Φ25 | ／ | ≤300（双层） |
|
| 锥形管 | ≤300 | ／ |
保护管种类
| 代号 | 通 用 型 | 特 殊 型 | ||||||||
| A | B | C | Q | R | F | G | H | I | ||
| 材质 | 20#碳钢 | 1Cr18Ni9Ti | Cr25Ti | 高铝质 | 刚玉质 | MoSi2 | 钼管 | 耐热合金 | 耐蚀合金 | |
| 适用温度℃ | -100~500 | -200~900 | -40~1000 | 0~1300 | 0~1600 | 0~1600 | 0~2300 | ≤1300 | ≤900 | |
| 配用偶丝 | K,N,E,J,T | K,N,S,R | B,WRe3/25 | S,R,B,WRe3/25 | K,N,S,R | K,N,E,J,T | ||||
| 备注 | 通常用1Cr18Ni9Ti | 协议供货 | ||||||||
安装固定型式
| 代 | 名称 | 结构图 | 尺 寸 mm | 保护管 | 压力 | ||||||
| M | H | S | DO | 直径mm | 材质 | Mpa | |||||
| 2 | 固定螺纹 |
| M27×2 | 32 | 32 | Φ40 | Φ16 | 1Cr18Ni9Ti | ≤10.0 | ||
| M33×2 | 35 | 36 | Φ48 | Φ20 | 20#碳钢 | ≤1.0 | |||||
| 6 | 锥形固定螺纹 |
| M33×2 | 33 | 36 | Φ48 | 锥形 | 1Cr18Ni9Ti | ≤15.0 | ||
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| D1 | D2 | D0 | d0 | H | h |
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| 3 | 活动法兰 |
| Φ70 | Φ54 |
| Φ6 |
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| Φ16 |
| 常压 |
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| Φ20 |
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| 4 | 固定法兰 |
| Φ65 | Φ95 | Φ45 | Φ14 | 19 | 3 | Φ16 | 1Cr18Ni9Ti | ≤6.0 |
| Φ40 | Φ40 | Φ40 | Φ20 | 20#碳钢 | ≤1.0 | ||||||
型号规格
铂铑10－铂热电偶，分度号：S，测温范围0~1600℃；
铂铑13－铂热电偶，分度号：R，测温范围0~1600℃；
铂铑30－铂6热电偶，分度号：B，测温范围0~1800℃。
工业铂铑10-铂、铂铑13-铂、铂铑30-铂6热电偶
| 热电偶型号 | 热电偶丝 | 固定装置 | 接线盒 | 保护管 | 响应时间s | 压力Mpa | |||||
| 直径 | 材质 | 无固定装置 | 活动法兰 | 防溅型 | 防水型 | Φ16 | Φ25 | 材质 | |||
| WRS-121 | Φ0.5 | PtRh10-Pt | ○ |
| ○ |
| ○ |
| 高铝质 | ＜150 | 常压 |
| WRS-123 | ○ |
| ○ |
|
| ○ | ＜360 | ||||
| WRS2-131 | ○ |
|
| ○ | ○ |
| ＜150 | ||||
| WRS2-133 | ○ |
|
| ○ |
| ○ | ＜360 | ||||
| WRR-121 | Φ0.5 | PtRh13-Pt | ○ |
| ○ |
| ○ |
| 刚玉管 | ＜150 | 常压 |
| WRR-123 | ○ |
| ○ |
|
| ○ | ＜360 | ||||
| WRR2-131 | ○ |
|
| ○ | ○ |
| ＜150 | ||||
| WRR2-133 | ○ |
|
| ○ |
| ○ | ＜360 | ||||
| WRB-121 | Φ0.5 | PtRh30-Pt | ○ |
| ○ |
| ○ |
| 刚玉管 | ＜150 | 常压 |
| WRB-123 | ○ |
| ○ |
|
| ○ | ＜360 | ||||
| WRB2-131 | ○ |
|
| ○ | ○ |
| ＜150 | ||||
| WRB2-133 | ○ |
|
| ○ |
| ○ | ＜360 | ||||
镍铬－镍硅热电偶 分度号：K 测温范围：－40~1000℃
工业镍铬－镍铬热电偶
热电偶 型 号 WRK WRK2 | 固 定 装 置 | 接 线 盒 | 保 护 管 | 热响应时间s | 耐压 | ||||||||||||
| 无固定装置 | 固定螺纹 | 活动法兰 | 固定 | 900角固定法兰 | 锥形固定螺纹 | 防溅型 | 防水型 | 隔爆型 | Φ16 | Φ20 | Φ16 | Φ25 | 锥形 | 材 质 | <90 | 常压 | |
| 1 | 2 | 3 | 4 | 5 | 6 | 2 | 3 | 4 | 0 | 1 | 2 | 3 | |||||
| -120 | ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -121 | ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -122 | ○ |
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| ○ |
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| ○ |
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| 高铝管 | <150 | 常压 |
| -123 | ○ |
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| ○ |
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| ○ |
| 高铝管 | <360 | 常压 |
| -130 | ○ |
|
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -131 | ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -132 | ○ |
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| ○ |
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| ○ |
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| 高铝管 | <150 | 常压 |
| -133 | ○ |
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| ○ |
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| ○ |
| 高铝管 | <360 | 常压 |
| -220 |
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -221 |
| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -230 |
| ○ |
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -231 |
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -320 |
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -321 |
|
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -330 |
|
| ○ |
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -331 |
|
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -420 |
|
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <6.4 |
| -421 |
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <6.4 |
| -430 |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <6.4 |
| -431 |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <6.4 |
| -520 |
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| ○ |
| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -521 |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -530 |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -531 |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -620 |
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| ○ | ○ |
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| ○ | 1Cr18Mi9Ti | <90 | <30 |
| -630 |
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| ○ | 1Cr18Mi9Ti | <90 | <30 |
说明：·热电偶丝直径为Φ2.5mm和Φ3.2mm两种规格；
热电偶丝材质为NiCr-NiSi。
镍铬－康铜热电偶 分度号：E 测温范围：-40~900℃
工业镍铬－康铜热电偶
| 热电偶 | 固定装置 | 接线盒 | 保护管 | 热响应时间s | 耐压 MPa | ||||||||||||
| 无固定装置 | 固定螺纹 | 活动法兰 | 固定 | 900角固定法兰 | 锥形固定螺纹 | 防溅型 | 防水型 | 隔爆型 | Φ16 | Φ20 | Φ16 | Φ25 | 锥形 | 材 质 | |||
| 1 | 2 | 3 | 4 | 5 | 6 | 2 | 3 | 4 | 0 | 1 | 2 | 3 | |||||
| -120 | ○ |
|
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -121 | ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -130 | ○ |
|
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -131 | ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -220 |
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -221 |
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -230 |
| ○ |
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -231 |
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -320 |
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -321 |
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -330 |
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| ○ |
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -331 |
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -420 |
|
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <6.4 |
| -421 |
|
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <6.4 |
| -430 |
|
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| ○ |
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | <6.4 |
| -431 |
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <6.4 |
| -520 |
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| ○ |
| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -521 |
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| ○ |
| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -530 |
|
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| ○ |
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -531 |
|
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| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -620 |
|
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| ○ | ○ |
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| ○ | 1Cr18Mi9Ti | <90 | <30 |
| -630 |
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| ○ |
| ○ |
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| ○ | 1Cr18Mi9Ti | <90 | <30 |
说明：·热电偶丝直径为Φ2.5mm和Φ3.2mm两种规格；
·热电偶丝材质为NiCr-CuNi。
镍铬硅－镍硅热电偶 分度号：N 测温度：-40~1300℃
工业镍铬硅－镍硅热电偶
| 热电偶 | 固定装置 | 接线盒 | 保护管 | 热响应时间s | 耐压 | ||||||||||||
| 无固定装置 | 固定螺纹 | 活动法兰 | 固定 | 900角固定法兰 | 锥形固定螺纹 | 防溅型 | 防水型 | 隔爆型 | Φ16 | Φ20 | Φ16 | Φ25 | 锥形 | 材 质 | |||
| 1 | 2 | 3 | 4 | 5 | 6 | 2 | 3 | 4 | 0 | 1 | 2 | 3 | |||||
| -120 | ○ |
|
|
|
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| ○ |
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| ○ |
|
|
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| 1Cr18Mi9Ti | <90 | 常压 |
| -121 | ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -122 | ○ |
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| ○ |
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| ○ |
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| 高铝管 | <150 | 常压 |
| -123 | ○ |
|
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| ○ |
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| ○ |
| 高铝管 | <360 | 常压 |
| -130 | ○ |
|
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -131 | ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -132 | ○ |
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| ○ |
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| ○ |
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| 高铝管 | <150 | 常压 |
| -133 | ○ |
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| ○ |
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| ○ |
| 高铝管 | <360 | 常压 |
| -220 |
| ○ |
|
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -221 |
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -230 |
| ○ |
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| ○ |
| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -231 |
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | <10 |
| -320 |
|
| ○ |
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| ○ |
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| ○ |
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| 1Cr18Mi9Ti | <90 | 常压 |
| -321 |
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| ○ |
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| ○ |
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| ○ |
|
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| 1Cr18Mi9Ti | <90 | 常压 |
| -330 |
|
| ○ |
|
|
|
| ○ |
| ○ |
|
|
|
| 1Cr18Mi9Ti | <90 | 常压 |
| -331 |
|
| ○ |
|
|
|
| ○ |
|
| ○ |
|
|
| 1Cr18Mi9Ti | <90 | 常压 |
| -420 |
|
|
| ○ |
|
| ○ |
|
| ○ |
|
|
|
| 1Cr18Mi9Ti | <90 | <6.4 |
| -421 |
|
|
| ○ |
|
| ○ |
|
|
| ○ |
|
|
| 1Cr18Mi9Ti | <90 | <6.4 |
| -430 |
|
|
| ○ |
|
|
| ○ |
| ○ |
|
|
|
| 1Cr18Mi9Ti | <90 | <6.4 |
| -431 |
|
|
| ○ |
|
|
| ○ |
|
| ○ |
|
|
| 1Cr18Mi9Ti | <90 | <6.4 |
| -520 |
|
|
|
| ○ |
| ○ |
|
| ○ |
|
|
|
| 1Cr18Mi9Ti | <90 | 常压 |
| -521 |
|
|
|
| ○ |
| ○ |
|
|
| ○ |
|
|
| 1Cr18Mi9Ti | <90 | 常压 |
| -530 |
|
|
|
| ○ |
|
| ○ |
| ○ |
|
|
|
| 1Cr18Mi9Ti | <90 | 常压 |
| -531 |
|
|
|
| ○ |
|
| ○ |
|
| ○ |
|
|
| 1Cr18Mi9Ti | <90 | 常压 |
| -620 |
|
|
|
|
| ○ | ○ |
|
|
|
|
|
| ○ | 1Cr18Mi9Ti | <90 | <30 |
| -630 |
|
|
|
|
| ○ |
| ○ |
|
|
|
|
| ○ | 1Cr18Mi9Ti | <90 | <30 |
说明：·热电偶丝直径为Φ2.5mm和Φ3.2mm两种规格；
·热电偶丝材质为NiCrSi-NiSiMg。