A temperature intelligent control asphalt vehicle heat exchange device and method

Abstract

The invention provides a temperature intelligent control asphalt vehicle-mounted heat exchange device and method; the heat exchange device comprises a first tube box, a second tube box and a heating tube; the heating tube communicates with the first tube box and the second tube box; an electric heating tube is arranged in the first tube box. The heat exchange device also comprises a control system; the control system comprises a temperature control device, a temperature sensor and a power supply interface; the temperature sensor is used for measuring a temperature of heated fluid, and the power supply interface is connected with the electric heating tube; the temperature control device automatically adjusts the power of the electric heating tube according to the detected temperature of the heated fluid. The invention provides the temperature intelligent control asphalt vehicle-mounted heat exchange device, automatic control of heating is further improved and the effect of energy saving is achieved.

Description

technical field [0001] The invention relates to a novel vehicle-mounted asphalt heat exchange device, in particular to an electric heating device and method for automatic fluid leakage protection. Background technique [0002] Asphalt is an important road engineering material. Due to the needs of users, asphalt needs to be transported from the place of production to the location of the user, and the transportation distance is usually long. After long-distance transportation, asphalt condenses into a solid state with poor fluidity and cannot be unloaded. It needs to be heated to make it have a certain fluidity before it can be unloaded. The commonly used asphalt heating technology in China generally adopts the built-in fire tube in the asphalt tank, uses diesel oil and natural gas to heat the asphalt, generates high-temperature flue gas through its combustion, and realizes heat exchange with the low-temperature heated asphalt through the heat exchange device (fire tube). An...

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Problems solved by technology

The limitation of the application of this technology is that the asphalt heating temperature range is -30°C-140°C, which belongs to the low-temperature heat transfer area, and the heat transfer efficiency of radiation heat transfer is also very low.

[0004] In addition, the existing heating technology, no matter whether it adopts fuel oil flame heating method or electric heating method, its heat exchange device cannot realize intelligent control of heating temperature, so it cannot guarantee the internal temperature uniformity of the asphalt during the heating process, and some working fluids due to excessive temperature Aging will affect its use, and there is a problem of fluid leakage during the heating process, which will pollute the asphalt, which is prone to danger and affects the heating effect

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