Applications of Electric Heating Systems

I. Industrial Sector: Key Solutions for Freeze Protection and Process Temperature Maintenance

1. Petrochemical Industry

Electric heating systems are crucial for freezing oil and gas pipelines, storage tanks, and valves. For example, pipelines located within the Arctic Circle must maintain a temperature above 5°C (see API RP 555) to prevent crude oil from freezing. Furthermore, heating chemical reactors requires precise temperature control within ±2°C (per ASME B31.3).

2. Electrical and Power Equipment

Sludge pipes in gas-fired power plant desulfurization systems are prone to freezing. Electric heating can maintain a temperature between 10°C and 15°C (IEEE 515). Wind turbine blade de-icing also relies on electric heating to prevent low temperatures from reducing power generation efficiency.

II. Residential and Commercial Scenarios: Balancing Energy Savings and Safety

1. Frost Protection for Building Water Supply and Wastewater Treatment

In northern regions, outdoor fire-resistant pipes require electric heating to maintain a temperature above 0°C (GB 50015 standard) to prevent freezing and cracking. Heating residential solar water heater pipes can reduce winter heat loss by 30% to 50% (measured data).

2. Food and Pharmaceutical Cold Chain

In cold storage, refrigerated truck body seals use electric heating to maintain temperature and prevent condensation and freezing. Pharmaceutical transportation requires a constant temperature of 2 to 8°C (WHO standards). Compared to traditional steam heating, electric heating saves over 20% energy.

III. Special Environment Applications: Adapting to High-Demand Scenarios

1. Offshore Platforms and Ships

Offshore drilling platform pipelines require corrosion-resistant electric heating cables with an operating temperature range of -40°C to 200°C (DNV GL certified). Heating ship fuel oil pipelines can address the low-temperature fluidity issues of high-sulfur fuel.

2. New Energy and Environmental Protection

Lithium battery production workshops require explosion-proof electric heating cables to maintain the electrolyte temperature at 25±1°C (IEC 60079 standard). Sludge pipeline heating in sewage treatment plants can improve winter treatment efficiency.

Key Technology Selection Considerations

- Temperature Requirements: Select a low-temperature (0-65°C), medium-temperature (100-150°C), or high-temperature (above 200°C) model based on the fluid's freezing point or process requirements.

- Environmental Conditions: Corrosive environments require a fluoroplastic outer sheath, while explosion-proof areas should use mineral-insulated (MI) cable.

- Energy Efficiency: Self-regulating electric heating systems can save 15-30% energy compared to constant-power systems (according to the U.S. Department of Energy). Electric heating systems are widely used, particularly due to their precise temperature control, flexible installation, and low maintenance costs. In the future, to achieve carbon neutrality, high-efficiency electric heating technology will gradually replace traditional steam heating.