电站测温用热电阻WZP-220B 厂家
产品介绍
WZP-220B 装配式热电阻是一种广泛应用于工业领域的温度测量传感器,特别适用于电站、化工、冶金等行业的温度监测。该产品由专业制造商生产,采用先进的制造工艺和优质的材料,确保了其高性能和可靠性。
产品特点
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高精度测量:WZP-220B 装配式热电阻能够提供高精度的温度测量,其测量范围为 -200℃ 至 420℃。在不同的温度区间,其允许偏差分别为 ±(0.30 + 0.005|t|)(B 级)。
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快速响应:该热电阻具有快速的热响应时间,能够在温度发生阶跃变化时迅速输出变化信号。
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耐腐蚀和高压:采用不锈钢保护管,具有良好的耐腐蚀性和高压承受能力,适用于多种恶劣环境。
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安装灵活:提供多种安装方式,包括固定螺纹、法兰安装等,能够满足不同应用场景的需求。
工作原理
WZP-220B 装配式热电阻是利用铂电阻的电阻值随温度变化的特性来测量温度的。当被测介质中有温度梯度存在时,所测得的温度是感温元件所在范围内介质层的平均温度。
应用场景
该产品适用于多种工业场合,包括但不限于:
技术参数
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分度号:Pt100。
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电阻值:在 0℃ 时,电阻值为 100Ω。
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公称压力:根据保护管材料和结构,可承受不同压力。
结构组成
WZP-220B 装配式热电阻主要由接线盒、保护管、接线端子、绝缘套管和感温元件组成。其中,感温元件是铂丝绕组,具有高稳定性和可靠性。
Product Introduction
WZP-220B Assembled Thermoresistor is a widely used temperature measurement sensor in industrial fields, especially suitable for temperature monitoring in power stations, chemical industry, and metallurgy. This product is manufactured by professional manufacturers, using advanced manufacturing processes and high-quality materials to ensure its high performance and reliability.
Product Features
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High Precision Measurement: The WZP-220B assembled thermoresistor provides high-precision temperature measurement with a range of -200°C to 420°C. The allowable deviation is ±(0.30 + 0.005|t|) for Grade B.
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Fast Response: This thermoresistor has a fast thermal response time and can quickly output the change signal when the temperature changes stepwise.
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Corrosion and High-Pressure Resistance: With a stainless steel protection tube, it has good corrosion resistance and high-pressure bearing capacity, suitable for various harsh environments.
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Flexible Installation: It offers various installation methods, including fixed threads and flange installation, to meet the needs of different application scenarios.
Working Principle
The WZP-220B assembled thermoresistor measures temperature by utilizing the characteristic of platinum resistance changing with temperature. When there is a temperature gradient in the measured medium, the measured temperature is the average temperature of the medium layer where the temperature-sensing element is located.
Application Scenarios
This product is applicable to various industrial scenarios, including but not limited to:
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Power Stations: Monitoring the temperature of power generation equipment to ensure it operates within a safe temperature range.
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Chemical Industry: Measuring the temperature of liquids, steam, and gas media in chemical reaction processes.
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Metallurgical Industry: Monitoring the high-temperature metal processing processes.
Technical Parameters
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Scale Number: Pt100.
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Resistance Value: At 0°C, the resistance value is 100Ω.
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Nominal Pressure: Depending on the material and structure of the protection tube, it can withstand different pressures.
Structural Composition
The WZP-220B assembled thermoresistor mainly consists of a junction box, protection tube, terminal, insulating tube, and temperature-sensing element. The temperature-sensing element is a platinum wire winding, which has high stability and reliability.
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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