電站測溫用熱電阻WZP-321B 供應(yīng)
產(chǎn)品概述
WZP-321B電站測溫用熱電阻是專為電力工業(yè)設(shè)計的溫度傳感器,適用于火力發(fā)電機組及輔助設(shè)備的溫度監(jiān)測需求。該產(chǎn)品采用高品質(zhì)材料制造,能夠直接測量液體、蒸汽、氣體介質(zhì)及固體表面溫度,測溫范圍覆蓋-200℃至420℃的工業(yè)場景。產(chǎn)品采用固定螺紋安裝結(jié)構(gòu),便于現(xiàn)場安裝與維護,其鎧裝化感溫元件結(jié)合彈性壓緊設(shè)計,顯著提升測溫響應(yīng)速度與長期穩(wěn)定性。11020
核心特點
WZP-321B熱電阻采用鉑絲繞組感溫元件(Pt100分度號),通過電阻值隨溫度變化的特性實現(xiàn)精確測溫。產(chǎn)品保護管可承受靜態(tài)外壓,試驗壓力達公稱壓力的1.5倍,適應(yīng)電站高壓環(huán)境。其分離式保護管結(jié)構(gòu)與模塊化設(shè)計使元件更換無需停機,有效降低維護成本。常溫絕緣電阻不小于100MΩ(測試電壓10-100VDC),確保在15-35℃環(huán)境溫度及80%濕度條件下的可靠性能。測量電流限制在5mA以內(nèi),自熱溫升低于0.3℃,避免對測溫精度的影響。112023
技術(shù)參數(shù)
該型號熱電阻滿足30萬/60萬千瓦機組配套要求,感溫元件實測溫度允許偏差為±(0.30+0.005|t|)℃(t為實測溫度絕對值)。熱響應(yīng)時間τ0.5根據(jù)保護管尺寸不同分為10-30秒(I級)和30-90秒(II級)兩檔。產(chǎn)品可選Φ12mm或Φ16mm不銹鋼保護管,最小插入深度為保護管外徑的8-10倍,可定制特殊長度規(guī)格。接線盒提供防水、防濺等防護等級,適應(yīng)電站復(fù)雜工況。32028
應(yīng)用場景
WZP-321B廣泛應(yīng)用于火力發(fā)電廠的鍋爐管道、汽輪機軸承、蒸汽系統(tǒng)等關(guān)鍵部位的溫度監(jiān)控。其抗震設(shè)計特別適合旋轉(zhuǎn)機械測溫,而可分離結(jié)構(gòu)便于在機組運行期間快速更換損壞元件。產(chǎn)品參考國際規(guī)范設(shè)計,兼容國產(chǎn)及進口發(fā)電設(shè)備,能替代同類進口產(chǎn)品,為電力行業(yè)提供經(jīng)濟可靠的測溫解決方案。11011
Product Overview
The WZP-321B thermal resistor for power plant temperature measurement is specifically engineered for monitoring applications in thermal power generation systems. This sensor utilizes high-grade materials to directly measure temperatures from -200°C to 420°C across liquids, steam, gases, and solid surfaces. Its fixed-thread mounting structure facilitates field installation, while the armored sensing element with spring-loaded contact design ensures rapid thermal response and long-term measurement stability. 12023
Key Features
Equipped with platinum wire sensing element (Pt100), the WZP-321B achieves precise temperature measurement through resistance-temperature characteristics. The protective tube withstands static external pressure up to 1.5 times nominal pressure, suitable for high-pressure power plant environments. Modular construction allows element replacement without system shutdown, significantly reducing maintenance downtime. With insulation resistance ≥100MΩ (test voltage 10-100VDC) and measurement current limited to 5mA, the device maintains reliable performance under 15-35℃ ambient conditions. 112028
Technical Specifications
This thermal resistor meets requirements for 300MW/600MW power units, featuring temperature tolerance of ±(0.30+0.005|t|)℃ (t=actual temperature). Thermal response time τ0.5 ranges 10-30s (Class I) or 30-90s (Class II) depending on protective tube dimensions. Standard options include Φ12mm or Φ16mm stainless steel tubes with minimum insertion depth of 8-10 times tube diameter. Weatherproof junction boxes accommodate harsh plant environments. 32328
Applications
The WZP-321B is widely deployed in boiler pipelines, turbine bearings, and steam systems for critical temperature monitoring. Vibration-resistant construction makes it ideal for rotating equipment, while separable components enable quick maintenance during operation. Compatible with domestic and imported power generation equipment, this product provides cost-effective temperature measurement for global power industry applications. 101120
電站測溫用熱電阻
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,
量程規(guī)格
名 稱 分度號 測溫范圍 ℃ 精度等級 允 差Δt
鎳鉻-鎳硅熱電偶 K 0~800 2 ±2.5℃或 ±0.75%t
鎳鉻-銅鎳熱電偶 E 0~600 2 ±2.5℃或 ±0.75%t
鉑熱電阻 Pt100 -200~500 B ±(0.3+0.005|t|)
注:t為感溫元件實測溫度或?qū)崪y溫度的值。
□公稱壓力
一般是指在常溫下,保護管所能承受的靜態(tài)外壓而不破裂,試驗壓力一般采用公稱壓力的1.5倍。實際上,允許工作壓力不僅與保護管材料、直徑、壁厚有關(guān),而且還與其結(jié)構(gòu)形式、安裝方法、置入深度以及被測介質(zhì)的流速、種類有關(guān)。
□熱電偶絕緣電阻
常溫絕緣電阻的試驗電壓為直流500V。測量常溫絕緣電阻的大氣條件為:溫度15~35℃,相對濕度45%RH,大氣壓力86~106kPa。
對于長度超過1米的熱電偶,它的常溫絕緣電阻值與其長度的乘積應(yīng)不小于100MΩ•m,
即:Rr•L>100MΩ•mL>1m
式中:Rr-熱電偶的常溫絕緣電阻值,MΩ;
L-熱電偶的長度,m。
對于長度等于或不足1米的熱電偶,它的常溫絕緣電阻值應(yīng)不小于100MΩ。
□熱電阻絕緣電阻
常溫絕緣電阻的試驗電壓可取直流10~100V任意值,環(huán)境溫度應(yīng)在15~35℃范圍內(nèi),相對濕度應(yīng)不大于80%RH,常溫絕緣電阻值應(yīng)不小于100MΩ。
□熱電阻允許通過電流
通過鉑電阻的測量電流大不超過5mA。
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