1)產(chǎn)品結(jié)構(gòu)與工作原理 Product Structure and Working Principle 電源母線為二根平行絕緣銅線，在內(nèi)絕緣層上纏繞電熱絲，并將電熱絲每隔一定距離與母線連接，形成連續(xù)并聯(lián)電阻。母線通電后，各并聯(lián)電阻發(fā)熱，因而形成一條連續(xù)的加熱帶。 The power generatrix wire is 2 parallel insulative copper wires. Heating threads are wound around the inner jacket insulation layer. Every certain distance the heating thread is welded to the generatrix,which makes the continuous parallel connection resistance. When the generatrix is powered, the parallel connection resistance begin to heat. This makes a continuousheating belt. 我公司電伴系列產(chǎn)品符合GB19518.1-2004標(biāo)準(zhǔn)規(guī)定，并取得防爆合格證和生產(chǎn)許可證。 The series of our product’s comply witn tne rule of National Stanard, Ana Manufaceure license ana Explosion Proof Certificate have also been obtainea, (2)產(chǎn)品規(guī)格和主要技術(shù)特性 Product Types and Main Technical Characteristics 表 2-1： JFB-口/2 型電熱帶主要技術(shù)參數(shù)表 Table 2-1: Main Technical Parameters of JFB- 口 /2 Type Electric heat cable 型號(hào) Type 額定 電壓 Rated Voltage (v) 額定 功率 Rated Power (w/m) 絕緣 電阻 Insulation Resistance (MΩ /hm) 電氣 強(qiáng)度 Electricity Intensity (v/min) 絕緣層 材料 Insulation Material 產(chǎn)品 較高 耐溫 Highest Temp- erature (℃) 防爆 標(biāo)志 Explo- sion Proof Label 小彎 曲半徑 Min. Bending Radius (mm) 介質(zhì) 高維持 溫度 Highest Maintenance Temperature of Media (℃) 單電源 較大使 用長(zhǎng)度 Max. UseLength of Single Power (m) 加強(qiáng)型 Reinforced JFB-10/2J 220 10 ≥50 2200 F46 200 ExeIIT4 普通型 Common 30 加強(qiáng)型 Reinforced 35 120 330 JFB-20/2J 20 110 160 JFB-30/2J 30 90 110 JFB-40/2J 40 70 80 (3)產(chǎn)品特點(diǎn)及應(yīng)用場(chǎng)合 Product Characteristics and Applications 恒功率電熱帶單位長(zhǎng)度的發(fā)熱量恒定，使用的電熱帶越長(zhǎng)，輸出的功率越大。該電熱帶在現(xiàn)場(chǎng)能按實(shí)際需要長(zhǎng)度任意剪切，并具有柔軟性，可以緊貼管道表面敷設(shè)。電熱帶外層的編織層能起到傳熱和散熱的作用，提高電熱帶的整體強(qiáng)度，同時(shí)還能用作安全接地線。 The heat output per length unit out of the constant wattage heating cable is fixed and constant.The longer the heating cable, the stronger the power is output. The electric heating belt can be cut flexibly according to the actual needs. And it is flexible and can be laid closely on the pipe surface. The outer brade layer can execute the function of heat transmitting and radiating, to enhance the general intensity of the heating belt. It can also be earthed. 一般用于小管線或管網(wǎng)系統(tǒng)短管線的伴熱保溫。 Itiscommonly used for thermal insulation of the small pipes or the short pipes of the pipe