恒功率防爆电伴热带 Constant power explosion-proof electric tracing band 恒功率防爆电伴热带在通电后功率输出是一直恒定的,不会随外界环境、保温材料、伴热的材质变化而变化,而其功率的输出或停止通常由智能型电热丝来控制。 Constant power explosion-proof electric tracing band in the electricity power output is always constant, the material will not change with the external environment, insulation materials, heat tracing and changes, and the power output or stop is usually composed of intelligent electric wire to control. 并联式恒功率电伴热带 Constant power electrically parallel with the tropics 结构:其电阻丝是并联连接方式,其工作时是靠电阻丝发热对管道进行加热。 Structure: the resistance wire is connected in parallel manner, the work is on the resistance wire heating to heat pipe. 原理:两根相互平行的度镍铜绞线包覆在氟化物绝热层中,作为电源母线,并且在内绝热层外缠绕镍铬合金电热丝,每隔一个固定距离即将电热丝进行焊接,形成一个连续的并联电阻,当电源铜母线通电以后,各并联电阻随之发热,即形成一个连续发热的电热带,可任意剪切。 Principle: two parallel degree of nickel copper wire coated in fluoride adiabatic layer, as the power bus, and adiabatic layer, 串联式恒功率电伴热带 With tropical tandem constant power 结构:其电阻丝是串联连接方式,其工作时是靠电阻丝发热对管道进行加热。 Structure: the resistance wire is connected in series, its work is to rely on the resistance wire heating to heat pipe. 原理:串联式电伴热带是由绝缘铜绞线为电源母线,即为发热芯线。具有一定内阻的芯线通过电流芯线就会产生焦耳热量(焦耳--楞次定律Q=0.24I\S2^;Rt),其大小与电流平方、芯线阻值和通过时间成正比。因此串联式电伴热带随着通电时间的延续, 源源不断的发出热量,形成一条连续的、均匀发热的电伴热带。串联式电伴热带芯线电流相同、电阻相等,所以整根电伴热带首尾发热均匀,其输出功率恒定不受环境温度和管道温度影响。 Principle: series electric tracing band is composed of insulated copper wire for power supply bus, is the heating core wire. 3应用领域编辑 Editing applications 3 1、并联式恒功率电伴热带:主要应用于石油、化工、电力、冶金等管道系统、储罐、阀门、泵体的伴热、防冻或仪表管线的工艺温度维持。适用于长距离、大口径管道进行伴热保温。可用于普通场合和防爆场合Ⅰ、Ⅱ级2区。 large diameter pipelines for heat insulation. Can be used for common occasions and explosion-proof occasions I, II in 2 areas. 2、串联式恒功率电伴热带:适用于回路长度超出了并联式恒功率电伴热带上限的情况下,一个单供点的回路,最长可达3600米。可用于普通场合和防爆场合Ⅰ、Ⅱ级2区。 2, the tandem type constant power electric tracing band: suitable for loop length e II in 2 areas.