The three-phase constant power electric heating belt adopts a three-phase triangular power supply. In addition to the characteristics of a single-phase electric heating belt, the three-phase belt is particularly suitable for tracing and insulation of long-distance and large-diameter pipelines. It can be used in explosive gas mixture situations in the first and second zones of the factory.
Product Structure and Working Principle
In addition to the same characteristics as single-phase constant power electric heating belts, three-phase constant power electric heating belts also have the following advantages:
1. The maximum allowable length of a three-phase electric heating belt is higher than that of a single-phase electric heating belt
2. In large-scale applications of electric heating belts, it can balance the load of the power grid
3. Due to the use of three core wires, the three-phase electric heating belt is flattened, reducing surface heating load and increasing the heat conduction area to the pipeline, thus improving the efficiency of the system
Product Features
Product specifications and main technical features
This electric heating belt is suitable for heat tracing, antifreeze, and insulation of pipelines, valves, and pump bodies, or for maintaining the process temperature of instrument pipelines. It is particularly suitable for large-diameter and long-distance heat tracing insulation.
1) Under normal circumstances, the use of low solidification pipelines with continuous flow can prevent the medium from solidifying due to the cessation of flow.
2) The tracing and insulation of liquid pipelines that require strict control of operating temperature.
3) Antifreezing of water pipelines and valves in cold and freezing areas, as well as antifreeze of drainage pipes, extraction pipes, and condensation pipelines.
4) Antifreezing of offshore platform pipelines.
5) Thermal insulation for general pipelines and instruments.
6) Wellhead oil production shaft heat tracing (replacing water jacket), sewage well heat tracing.
7) Airport runway anti icing and snow freezing.
8) Antifreeze curing of concrete products.
Product application scenarios
The power bus consists of three parallel insulated copper wires, which are wrapped with heating wires on the inner sheath insulation layer. The heating wires are repeatedly connected to the bus at regular intervals (i.e. "heating section length"), forming a loop between every two phases