Understanding Constant Power Electric Heating Cables in One Article

In the huge operating system of industry and life, the demand for heating is everywhere. Constant power electric heating cables quietly work to protect pipelines and maintain temperature. But do you really understand it? Today, let's take a look at this key and mysterious heating "weapon".

Principle

The working principle of constant power electric heating cable is based on Joule's law. There are two parallel busbars inside as the two poles of the power supply, and the heating core is filled in the middle. When the current passes through, the heating core resistor heats up, thus generating heat. Unlike other electric heating methods, constant power electric heating cable is designed to maintain a stable power output. This means that no matter how the ambient temperature changes, as long as it works at its rated voltage, it will continue to heat at the set power. This feature is achieved through special circuit design and material selection.

Characteristics

1. Stable heating power

The biggest characteristic of constant power electric heating tape is constant power. This characteristic enables it to provide a stable heat supply during the heating process. For some industrial processes with strict temperature requirements, such as medium transportation in chemical pipelines, a stable temperature is required to ensure the fluidity of the medium and the normal progress of chemical reactions. Constant power electric heating tape can meet the needs well.

2. Higher heating temperature

Constant power electric heating tape can achieve a relatively high heating temperature. It can adapt to some high-temperature heating requirements. For example, in high-temperature oil pipelines, a higher temperature is required to maintain good fluidity of the oil. Constant power electric heating tape can effectively complete the heating task.

3. Can be used over long distances

Due to its stable power characteristics, constant power electric heating cables have advantages in long-distance heating applications. It can be laid on long-distance pipelines or large equipment, without problems such as power attenuation when used over long distances like some self-limiting temperature electric heating cables.

Application areas

1. Petrochemical industry

There are a large number of pipelines in the petrochemical industry that need to be heated to prevent the medium from solidifying or clogging the pipeline. Constant power electric heating cables can accurately provide stable heat according to different pipeline requirements to ensure the smooth transportation of crude oil, natural gas and other media in the pipeline.

2. Power industry

In the power industry, cable trays may face risks such as reduced insulation performance in low temperature environments. Constant power electric heating cables can heat cable trays, maintain appropriate temperatures, ensure the normal operation of cables, and improve the safety and reliability of power systems.

3. Construction field

In the water supply and drainage systems of some large buildings, especially in cold areas, constant power electric heating cables can be used for pipe heating to prevent water pipes from freezing and ensure the normal operation of water supply and drainage in buildings.

Constant power electric heating cables play an important heating role in many fields such as petrochemical, electric power, and construction due to their stable power output, high heating temperature, and long-distance use. They are an indispensable part of modern industrial and construction facilities.