Electrical heating cast aluminum heat exchanger

Abstract

The invention discloses an electrical heating cast aluminum heat exchanger which comprises a shell (1), a coil (2) and a plurality of heating rods (3) are arranged in the shell (1), and all the heating rods (3) are controlled through a control circuit which is located in an electronic control cabinet (4) on the upper portion of the shell (1). The electrical heating cast aluminum heat exchanger is characterized in that a cavity in the shell (1) except for the coil (2) and the heating rods (3) is filled with cast aluminum or cast aluminum alloy. The electrical heating cast aluminum heat exchanger is simple in structure, ingenuous in design, reasonable in layout, high in heat exchanging efficiency and capable of achieving high-temperature heating.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to an electrically heated cast aluminum vaporization heat exchanger. Background technique [0002] Cryogenic fluids (liquid oxygen, liquid nitrogen, liquid hydrogen, liquid argon, LNG, LPG, ethylene, etc.) and corrosive fluids (HCL, H2SO4, SiH4, etc.) are flammable, explosive, and even polluting. The process requires specific temperature conditions, which are vaporized using a vaporizing heat exchanger. The traditional vaporization heat exchanger is a water-bath vaporization heat exchanger, which uses water or ethylene glycol as the heat transfer medium to indirectly heat the fluid in the heat exchange tube. This non-direct contact method can ensure constant temperature and avoid overheating. But the defect of this kind of heat exchanger is: before the vaporization of low-temperature fluid, the heat first needs to raise the temperature of water (or diethanol), so it will affect the vaporization ...

AI Technical Summary

Problems solved by technology

But the defect of this kind of heat exchanger is: before the vaporization of low-temperature fluid, the heat first needs to raise the temperature of water (or diethanol), so it will affect the vaporization speed, and because the boiling point of the heat transfer medium itself is low, it is also limits the vaporization temperature

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