Pipeline oil heater

Abstract

The invention provides a pipeline oil heater. By the pipeline oil heater, oil is continuously heated under continuous flow conditions, and the operation is safe, reliable and high-efficiency. The pipeline oil heater comprises hydraulic inner coils and hydraulic outer coils which are parallel to each other, and a plurality of electric heating tubes, wherein two ends of the hydraulic inner coils and hydraulic outer coils are parallelly welded by employing oil inlet pipe joints and oil return pipe joints and are coated through aluminum alloy casting to form an integrated aluminum alloy heating body; a temperature sensor is arranged in the aluminum alloy heating body; the electric heating tubes are distributed in an aluminum alloy cylindrical layer formed between the hydraulic inner coils and hydraulic outer coils; wiring terminals of the electric heating tubes are arranged at two ends of the aluminum alloy cylindrical layer; and thermal insulation materials are filled in an inner cavity of the aluminum alloy heating body and outside the aluminum alloy heating body. The pipeline oil heater is high in heating speed and high in heating efficiency, an oil carbonization phenomenon is avoided, and the oil is long in service life, safe and reliable and working pressure is high.

Description

technical field [0001] The invention relates to a heater, in particular to an oil heater used in a hydraulic pipeline. Background technique [0002] There are two types of oil heaters (or devices) used in traditional hydraulic pipelines: one is that the electric heater is directly placed in the pipeline oil for heating, and the other is the heating method that uses hot air, hot oil, belt or Coated electric heaters and other heat sources heat the outer wall of the pipeline to realize the heating of the oil in the pipe; the former is easy to carbonize and degrade the oil and pollute the oil because the surface of the high-temperature electric heater is in direct contact with the oil, reducing the oil and The service life of other components of the hydraulic system; although the latter method avoids the shortcomings of the former method, it needs to be equipped with a heating air or oil device, which has the disadvantages of large volume, low efficiency, and large thermal inert...

AI Technical Summary

Problems solved by technology

[0002] There are two types of oil heaters (or devices) used in traditional hydraulic pipelines: one is that the electric heater is directly placed in the pipeline oil for heating, and the other is the heating method that uses hot air, hot oil, belt or Coated electric heaters and other heat sources heat the outer wall of the pipeline to realize the heating of the oil in the pipe; the former is easy to carbonize and degrade the oil and pollute the oil because the surface of the high-temperature electric heater is in direct contact with the oil, reducing the oil and The service life of other components of the hydraulic system; although the latter method avoids the shortcomings of the former method, it needs to be equipped with a heating air or oil device, which has the disadvantages of large volume, low efficiency, and large thermal inertia. Hot air and belt heating There are safety hazards such as flammability

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