Infrared electric heating film heating tube with double-film layer structure as well as preparation method and application thereof

Abstract

The invention discloses an infrared electric heating film heating device with a double-film layer structure, which structurally comprises an electric heating film substrate and electrodes arranged on the two ends of the electric heating film substrate, wherein an electric conduction film layer and an infrared high emission film layer are sequentially evaporated on the surface of the electric heating film substrate. A preparation method of the infrared electric heating film heating device comprises the steps of: sequentially evaporating the electric conduction film layer and the infrared high emission film layer to the electric heating film substrate by using a high-temperature evaporation furnace, wherein an electric heating film solution comprises the components in parts by weight: 45-58parts of stannic chloride, 0.3-2.0 parts of antimony butter, 0.4-1.2 parts of nickel trichloride, 0.3-1.0 part of indium chloride, 5-15 parts of ethanol / glycerol, 6-17 parts of inorganic acid, and 20-30 parts of deionized water, and an infrared high emission film solution comprises the components in parts by weight: 35-45 parts of manganous chloride, 15-20 parts of nickel dichloride, 5-10 parts of chromium trichloride, 5-15 parts of ethanol / glycerol and 20-30 parts of deionized water; and finally assembling the electrodes to obtain the infrared electric heating film heating device. In the invention, the double-film layer structure is adopted for the infrared electric heating film heating device, which can greatly enhance radiative heat transfer, reduce convection heat transfer, improve energy efficiency and save energy sources.

Description

technical field [0001] The invention relates to an infrared electrothermal film heating tube with a double-film structure, a preparation method and an application thereof, and belongs to the fields of semiconductor heating technology and infrared heating technology. Background technique [0002] With the increasingly severe energy crisis, energy conservation and emission reduction has become a social issue of concern. In view of the defects of the current side-heating electric heating element, such as large thermal inertia, high temperature, easy oxidation, low heat conversion efficiency, and short service life, a variety of electric heating film heating elements have appeared one after another. As a surface heating element, it has the characteristics of direct heating, small heat capacity, no open flame, and high thermal efficiency. It can solve the problems of low temperature and narrow application range of traditional electric heating films. Chinese patents with publicat...

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Problems solved by technology

[0003] The main defects of the existing electrothermal film technology are: ① The existing technology improves the emission ratio by "doping" metal chlorides. A large amount of impurities affects the conductivity of the electrothermal film, which cannot reflect the energy-saving advantage of "infrared high radiation" of the electrothermal film heating element; ②The efficiency of the single-layer film structure is low, and the radiation-convective heat transfer ratio is small; ③The energy consumption of the electrothermal film spraying method , high cost, cumbersome operation, and low product stability

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