Electrode and resistor hybrid electric heating tube, heater and application thereof

Abstract

The invention discloses an electrode and resistor hybrid electric heating tube, a heater and application thereof. The heating tube is characterized in that water and an electric heating wire are arranged in a water guide tube, the electric heating wire is directly immersed in the water, and a water resistor and the electric heating wire form an electrical parallel connection relation; one end of the electric heating wire penetrates into the water guide tube and is arranged in the water guide tube, and the other end penetrates out of the water guide tube; the water guide tube is provided with insulating sleeves at the penetrating-in and penetrating-out positions of the electric heating wire. Three phases of electric heating tubes form a heater which can be applied to high-voltage and low-voltage boilers. By means of the structure, the electrode and resistor hybrid electric heating tube which is high in use heat efficiency and long in service life, the heater and the application thereof are provided.

Description

technical field [0001] The invention relates to a heating tube, a heater and applications thereof, in particular to an electrode and resistance hybrid electric heating tube, a heater and applications thereof. Background technique [0002] In the production of high-temperature hot water and steam, electric direct heating plays an important role, so improving the cost performance, high efficiency, high reliability, and long life of existing heating equipment is the current pursuit. [0003] The current electric direct heating market includes electric heating tube boilers, electromagnetic boilers, and electrode boilers. Electrode boilers are gradually recognized in the electric heating market because of their high efficiency, long life, and high cost performance. In existing electrode boilers, the phase electrode and the zero electrode are generally separated by a certain distance, and the water between the two conducts electricity to generate heat, but the conductivity of the...

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Problems solved by technology

In existing electrode boilers, the phase electrode and the zero electrode are generally separated by a certain distance, and the water between the two conducts electricity to generate heat, but the conductivity of the water must meet the design requirements and be strictly within a certain range. When used to generate steam, Pure water that also needs to be treated by reverse osmosis will increase the cost of water treatment and cause pressure on operating costs

In addition, if the operation state of the high-pressure boiler is out of control, it is easy to cause electrical failure of the electrode boiler, and even cause a leapfrog trip of the power grid, resulting in a large-scale power outage accident

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