Immersion type non-metallic electric heating tube for liquid

Abstract

The invention relates to an electric heating pipe for heating liquid, in particular to an immersion type non-metallic electric heating pipe for liquid, wherein the immersion type non-metallic electric heating tube for the liquid can be arranged in the liquid for heating and is made of non-metallic materials. The immersion type non-metallic electric heating pipe for the liquid comprises a quartz pipe with a round sealing bottom, an electric conduction heating film is arranged on the inner wall of the pipe, the positions of three electrodes are longitudinally located on the film in a halving mode, or the positions of two electrodes are located at the two longitudinal ends of the film, the positions are coated with silver electrode coils, three electrode components or two electrode components are closely attached to the positions, and high-temperature wires are guided out of the pipe. A screwing piece is arranged at the other end of the pipe to fix and seal the quartz pipe with the round sealing bottom, a mountable electric heating pipe fitting with a complete appearance is formed, and components and temperature control components in contact with power on the inner wall are all arranged in the pipe to be sealed. The immersion type non-metallic electric heating pipe for the liquid can heat the liquid with different characteristics and varies masses in an immersion mode through the material appearance and the construction characteristics of the pipe, is resistant to corrosion, free of scaling, strong in universality, high in safety and high in heat efficiency, and has an overtemperature protection function.

Description

technical field [0001] The invention relates to an electric heating tube for heating liquid, in particular to a submerged non-metallic liquid electric heating tube which can be placed in liquid for heating and made of non-metallic material. Background technique [0002] At present, metal electric heating tubes are mainly used for liquid heating, and there are many defects in long-term use: they are easily eroded by free oxygen in water, scaled, and corroded, which seriously affects the safety and thermal efficiency of use. In addition, it is more difficult to use in acidic liquids. [0003] CN201533417U (2010-7-21) discloses a carbon fiber quartz heating tube. Although its body is non-metallic, it is straight tubular, and the power leads are drawn at two ends, which is not suitable for liquid heating. [0004] Application number: 2010205237896 (2010-09-08) patent: non-metallic liquid heater. It is a section of quartz tube coated with a heat-generating film on its outer wal...

AI Technical Summary

Problems solved by technology

[0002] At present, metal electric heating tubes are mainly used for heating liquids, and there are many defects in long-term use: they are easily eroded by free oxygen in water, scaled, and corroded, which seriously affects the safety and thermal efficiency of use.

[0003] CN201533417U (2010-7-21) discloses a carbon fiber quartz heating tube, although its body is non-metallic, it is straight tubular, and the power wires are drawn at two ends, which is not suitable for liquid heating

It is a section of quartz tube coated with a heating film on its outer wall, and electrodes are arranged at both ends of the outer wall, which is intended to heat the liquid in the tube outside the tube. Obviously, it is not suitable for heating a large amount of liquid and has poor versatility, poor safety, and low thermal efficiency.

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