電站測(cè)溫用熱電阻WZP-621B 價(jià)格
產(chǎn)品概述
電站測(cè)溫用熱電阻WZP-621B是一款專為電力行業(yè)設(shè)計(jì)的溫度測(cè)量設(shè)備，適用于火力發(fā)電機(jī)組、蒸汽管道及鍋爐等高溫高壓環(huán)境的溫度監(jiān)測(cè)。該產(chǎn)品采用鉑電阻元件（Pt100）作為核心感溫部件，具有較寬的溫度測(cè)量范圍（-200℃至500℃）和良好的穩(wěn)定性，能夠滿足電站復(fù)雜工況下的長(zhǎng)期可靠運(yùn)行需求。其結(jié)構(gòu)設(shè)計(jì)包含耐腐蝕保護(hù)管和抗震接線盒，可適應(yīng)不同安裝場(chǎng)景的機(jī)械強(qiáng)度要求。56
核心特點(diǎn)
WZP-621B熱電阻采用兩節(jié)式分離結(jié)構(gòu)設(shè)計(jì)，保護(hù)管與感溫元件可獨(dú)立更換，顯著降低了維護(hù)成本。感溫元件采用鎧裝化工藝結(jié)合彈性壓緊技術(shù)，使熱響應(yīng)時(shí)間縮短至行業(yè)較優(yōu)水平，能快速捕捉溫度變化。產(chǎn)品符合電力行業(yè)通用技術(shù)規(guī)范，參考國(guó)際通用的EBASCO規(guī)格設(shè)計(jì)，適用于30萬至60萬千瓦發(fā)電機(jī)組配套使用。其A級(jí)精度版本在0℃時(shí)電阻值偏差不超過±0.06Ω，B級(jí)版本偏差控制在±0.12Ω范圍內(nèi)，確保測(cè)量數(shù)據(jù)的準(zhǔn)確性。210
應(yīng)用場(chǎng)景
該產(chǎn)品主要應(yīng)用于火力發(fā)電廠中鍋爐汽包、蒸汽管道、煙道風(fēng)道等關(guān)鍵部位的溫度監(jiān)測(cè)，同時(shí)也可用于石化、冶金等行業(yè)的高溫設(shè)備測(cè)溫。特殊設(shè)計(jì)的保護(hù)管材料（如1Cr18Ni9Ti不銹鋼）能承受≤9.8MPa的公稱壓力，在介質(zhì)流速≤100m/s的工況下保持穩(wěn)定性能。針對(duì)軸承溫度測(cè)量等特殊場(chǎng)景，產(chǎn)品還提供帶避震結(jié)構(gòu)的變體型號(hào)，可直接貼合被測(cè)表面實(shí)現(xiàn)精確測(cè)溫。813
產(chǎn)品優(yōu)勢(shì)
WZP-621B通過優(yōu)化結(jié)構(gòu)設(shè)計(jì)實(shí)現(xiàn)了安裝便捷性和維護(hù)便利性，用戶可將保護(hù)管焊接固定后單獨(dú)更換感溫元件。相較于同類產(chǎn)品，其鎧裝元件具有更好的抗振動(dòng)性能和更長(zhǎng)的使用壽命，常溫絕緣電阻≥100MΩ（測(cè)試電壓10-100V DC）。產(chǎn)品提供單支和雙支兩種配置選項(xiàng)，雙支型號(hào)可同時(shí)輸出兩組測(cè)溫信號(hào)，為系統(tǒng)冗余設(shè)計(jì)提供便利。配套使用的顯示儀表或控制系統(tǒng)無需特殊適配即可直接讀取標(biāo)準(zhǔn)電阻信號(hào)。1421
Product Introduction (English)
The WZP-621B thermal resistor is specifically engineered for temperature measurement in power plant applications, including boilers, steam pipelines and turbine systems. Utilizing platinum resistance elements (Pt100) with a measuring range of -200°C to 500°C, it delivers stable performance under high-pressure and high-vibration conditions common in thermal power generation environments. The separable protection tube design allows independent replacement of sensing components, significantly reducing maintenance downtime. 619
Key Features
This product features armored sensing elements with spring-loaded contacts for improved vibration resistance and faster thermal response. The corrosion-resistant protection tubes (available in 1Cr18Ni9Ti steel) withstand working pressures up to 9.8MPa and medium velocities under 100m/s. Its dual-compartment junction box provides IP65 protection level, suitable for outdoor installation. The A-grade version maintains resistance accuracy within ±0.06Ω at 0°C while the B-grade version stays within ±0.12Ω, ensuring reliable temperature monitoring for critical power generation equipment. 215
Typical Applications
Widely implemented in coal-fired power plants for monitoring bearing temperatures, steam headers and flue gas ducts, the WZP-621B also serves well in petrochemical and metallurgical processes. Specialized versions with vibration-damping structures can directly mount on rotating machinery surfaces. The modular design allows flexible configuration with either single or dual sensing elements, the latter providing redundant measurement channels for safety-critical systems. Standard Pt100 output ensures compatibility with most control systems without additional signal conditioning. 1016
Operational Benefits
With a maintenance-friendly design, the protective sleeve can be permanently welded to pipelines while the sensing cartridge remains replaceable. The product s optimized thermal mass enables quicker response to temperature fluctuations compared to conventional designs. Electrical isolation exceeding 100MΩ at 500V DC prevents signal interference in electrically noisy environments. Optional terminal configurations accommodate various cable connection methods, simplifying field installation procedures across different plant environments. 1421
電站測(cè)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(hào) 測(cè)溫范圍 ℃ 精度等級(jí) 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(shí)測(cè)溫度或?qū)崪y(cè)溫度的值。
□公稱壓力
一般是指在常溫下，保護(hù)管所能承受的靜態(tài)外壓而不破裂，試驗(yàn)壓力一般采用公稱壓力的1.5倍。實(shí)際上，允許工作壓力不僅與保護(hù)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(cè)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(yàn)電壓為直流500Ｖ。測(cè)量常溫絕緣電阻的大氣條件為：溫度15～35℃，相對(duì)濕度45％RH，大氣壓力86～106kPa。
對(duì)于長(zhǎng)度超過1米的熱電偶，它的常溫絕緣電阻值與其長(zhǎng)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(zhǎng)度，m。
對(duì)于長(zhǎng)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(yàn)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(duì)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(cè)量電流大不超過5mＡ。
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