恒功率防爆電伴熱帶 Constant power explosion-proof electric tracing band 恒功率防爆電伴熱帶在通電后功率輸出是一直恒定的,不會隨外界環境、保溫材料、伴熱的材質變化而變化,而其功率的輸出或停止通常由智能型電熱絲來控制。 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. 并聯式恒功率電伴熱帶 Constant power electrically parallel with the tropics 結構:其電阻絲是并聯連接方式,其工作時是靠電阻絲發熱對管道進行加熱。 Structure: the resistance wire is connected in parallel manner, the work is on the resistance wire heating to heat pipe. 原理:兩根相互平行的度鎳銅絞線包覆在氟化物絕熱層中,作為電源母線,并且在內絕熱層外纏繞鎳鉻合金電熱絲,每隔一個固定距離即將電熱絲進行焊接,形成一個連續的并聯電阻,當電源銅母線通電以后,各并聯電阻隨之發熱,即形成一個連續發熱的電熱帶,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, 串聯式恒功率電伴熱帶 With tropical tandem constant power 結構:其電阻絲是串聯連接方式,其工作時是靠電阻絲發熱對管道進行加熱。 Structure: the resistance wire is connected in series, its work is to rely on the resistance wire heating to heat pipe. 原理:串聯式電伴熱帶是由絕緣銅絞線為電源母線,即為發熱芯線。具有一定內阻的芯線通過電流芯線就會產生焦耳熱量(焦耳--楞次定律Q=0.24I\S2^;Rt),其大小與電流平方、芯線阻值和通過時間成正比。因此串聯式電伴熱帶隨著通電時間的延續, 源源不斷的發出熱量,形成一條連續的、均勻發熱的電伴熱帶。串聯式電伴熱帶芯線電流相同、電阻相等,所以整根電伴熱帶首尾發熱均勻,其輸出功率恒定不受環境溫度和管道溫度影響。 Principle: series electric tracing band is composed of insulated copper wire for power supply bus, is the heating core wire. 3應用領域編輯 Editing applications 3 1、并聯式恒功率電伴熱帶:主要應用于石油、化工、電力、冶金等管道系統、儲罐、閥門、泵體的伴熱、防凍或儀表管線的工藝溫度維持。適用于長距離、大口徑管道進行伴熱保溫。可用于普通場合和防爆場合Ⅰ、Ⅱ級2區。 large diameter pipelines for heat insulation. Can be used for common occasions and explosion-proof occasions I, II in 2 areas. 2、串聯式恒功率電伴熱帶:適用于回路長度超出了并聯式恒功率電伴熱帶上限的情況下,一個單供點的回路,最長可達3600米。可用于普通場合和防爆場合Ⅰ、Ⅱ級2區。 2, the tandem type constant power electric tracing band: suitable for loop length e II in 2 areas.