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immersion flange heater.jpg

Pressure Rated Electric Flange Immersion Heater

Flange-type electric heaters (also known as plug-in electric heaters) are common electric heating devices in the industrial field. They are mainly used in storage tanks, containers, pipelines and other scenes in the petroleum, chemical, food and machinery industries. They are suitable for heating and heat preservation of various media such as liquids, gases and even low-melting-point metals. They are connected by flange or threaded end face sealing and can be integrated into open or closed circulation systems. The device consists of multiple U-shaped tubular electric heating elements densely welded to the flange. It is made of materials such as stainless steel, nickel-chromium alloy wire and modified magnesium oxide powder and complies with industry technical standards. The core components support argon arc welding or modular assembly. Single electric heating tubes can be replaced independently to reduce maintenance costs. It has 220V/380V voltage adaptability, power configuration covers 2KW to 10000KW, and thermal efficiency is over 90%. It has a built-in PID temperature control system and interlock protection device, which can realize automatic power off in case of over-temperature and low liquid level. Some models have obtained ExdⅡBT4 explosion-proof certification. The innovative design of the mounting structure includes movable wheels and vibration-damping components to enhance the flexibility and safety of equipment deployment.

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    Technical Parameters
    Working Principles
    Application

    Flange Heater Feature

    High surface power, heating the air at 2 to 4 times the surface load.

    Highly compact and compact. Due to its short, dense design, it offers excellent stability and requires no brackets for installation.

    Combined models typically use argon arc welding to connect the heating tubes to flanges. Alternatively, a fastener assembly can be used: each heating tube is welded with a fastener. The flange cover is then secured with a nut. The tubes and fasteners are welded using argon arc welding, ensuring leak-proof sealing. Fasteners are sealed using advanced technology. Individual tube replacement is extremely convenient, significantly reducing future maintenance costs.

    Selection of high-quality imported and domestic materials. Scientific production processes and strict quality management guarantee the superior electrical performance of the heating tubes.

    Working Principles

    Flange-type electric heaters (also known as plug-in electric heaters) utilize U-shaped tubular heating elements. These elements are assembled on flange covers according to power configuration requirements, based on design specifications for heating different media. Inserted into the material to be heated, the element generates significant heat, transferring it to the heated medium, raising its temperature to meet the desired process requirements. When the medium temperature reaches the setpoint, the control system, based on the temperature sensor signal and PID calculations, adjusts the heater's output power to achieve temperature control across the resistive load of the heating element, ensuring a uniform medium temperature to the desired level. If the element overheats or the liquid level is low, an interlocking protection device immediately shuts off the heating power to prevent burnout and extend its service life.

    Application

    Flange type electric heaters are mainly used for heat preservation and heating of materials in various storage tanks, containers and oil tanks in industries such as petroleum, chemical, food and machinery. The connection method can be flange type or threaded end face sealing.