Recirculating Electric Heater

I. Overview of Recirculating Electric Heaters:

A recirculating electric heater is an internationally popular high-quality, long-lasting electric heating equipment. It is used for heating, insulation, and maintaining temperature of flowing liquid and gaseous mediums. As the heating medium passes through the heating chamber of the electric heater under pressure, it uniformly carries away the enormous heat generated by the electric heating elements, according to the principles of fluid thermodynamics, thereby achieving the temperature required by the user's process.

Working Principle

A recirculating electric heater converts electrical energy into heat to heat the material requiring heating. During operation, low-temperature fluid medium enters through the inlet under pressure, flows along the specific heat exchange channels inside the electric heating container, and uses a path designed according to fluid thermodynamic principles to carry away the high-temperature heat energy generated by the electric heating elements, thereby raising the temperature of the heated medium. The electric heater's internal control system automatically adjusts the output power based on the temperature sensor signal at the outlet, ensuring uniform temperature of the medium at the outlet. If the heating elements exceed the temperature limit, the independent overheating protection device of the heating elements immediately cuts off the heating power, preventing overheating of the heating material that could cause coking, deterioration, carbonization, and in severe cases, damage to the heating elements, effectively extending the service life of the electric heater.

Section 2: Application Range of Recirculating Electric Heaters:

Typical applications for the recirculating electric heater include:

1. Chemical industry: material heating, drying under pressure, chemical processes, and jet drying.

2. Hydrocarbon heating, including crude oil, heavy oil, fuel oil, heat transfer oil, lubricating oil, paraffin, etc.

3. Heating of fluids such as process water, superheated steam, molten salts, nitrogen (empty) gas, water gas, etc., requiring temperature increase.

4. Featuring advanced explosion-proof structures, the equipment is widely applicable in chemical, military, oil, natural gas, offshore platforms, ships, mining areas, and other explosion-proof environments.

Section 3: Factory Direct Low Price Supply of Recirculating Electric Heaters / Zhenjiang Recirculating Electric Heaters Models and Specifications:

Model Meaning: SW-△-△ △: Power (KW) △: Medium A: Gas W: Water T: Oil

Table of Mechanical Specifications (This table shows horizontal models; vertical models, please inquire separately)

Four, Operating Conditions for the Recirculating Electric Heater:

Electric heating system operating conditions, installation site

Ambient Temperature: -15 to 45°C

Relative Humidity: 46% - 91%

*Altitude: Above Sea Level

Control System: Installation indoors, non-corrosive, non-explosive area.

Field operation box and equipment combined into an integral lifting block installed in Zone 2 explosion-proof area

Electric Heater: Indoor or outdoor installation, non-corrosive, 2-zone explosion-proof area

V. Features of the Recirculating Electric Heater:

Compact and high-power: The heater mainly utilizes bundled tubular electric heating elements.

2. Fast thermal response, high temperature control accuracy, and high overall thermal efficiency.

3. High heating temperature: The heater is designed to operate at temperatures up to 850°C.

4. Uniform medium export temperature with high temperature control accuracy.

5. Wide Application and Strong Adaptability: This heater is suitable for both explosion-proof and ordinary environments. It can reach explosion-proof ratings of dⅡB and C levels, and withstand pressures up to 20 MPa.

6. Long lifespan and high reliability: This heater is made with special electrical heating materials, featuring a low surface power load design and multiple safety protections, significantly enhancing the safety and lifespan of the electric heater.

7. Full Automation Control: Through the heater circuit design as per requirements, automatic control of parameters such as outlet temperature, flow rate, and pressure can be easily achieved, and it can be networked with computers.

8. Significant energy-saving effect; the heat generated from the electricity is transferred to the heating medium.