Air heater

Abstract

The invention discloses an air heater, which comprises a heating cabinet and an air circulation pump. A functional area is arranged on the front surface of the heating cabinet, a cabinet door is installed on the right side of the functional area, and joints A and Joint B, a control panel is arranged between joint A and joint B, an air outlet nozzle is arranged on the functional area, an air inlet nozzle is arranged on the upper surface of the heating cabinet, and the air inlet nozzle is connected to the air circulation pump, and the heating There is a heating air pipe inside the cabinet. One end of the heating air pipe is connected to joint A, and the other end of the heating air pipe is connected to joint B. The heating air pipe adopts a snake-shaped and U-shaped layout. The layout and connection of the heating pipe are the same as the heating pipe, the air inlet nozzle is connected to the front end of the heating pipe, and the air outlet is connected to the end of the heating pipe. The invention has the beneficial effects of simple structure, low manufacturing cost, good heating effect and high heating efficiency.

Description

technical field [0001] The present invention relates to an air heater. Background technique [0002] An air heater is an electrical heating device that primarily heats a gas stream. The heating element of the air heater is a stainless steel electric heating tube. There are multiple baffles (baffles) in the inner cavity of the heater to guide the gas flow direction and prolong the residence time of the gas in the inner cavity, so that the gas is fully heated and the gas Uniform heating, improve heat exchange efficiency. The heating element of the air heater is a stainless steel heating tube, which is made by installing a heating wire in a seamless steel tube, filling the gap with magnesium oxide powder with good thermal conductivity and insulation, and shrinking the tube. When the current passes through the high-temperature resistance wire, the generated heat diffuses to the surface of the heating tube through the crystalline magnesium oxide powder, and then transfers to th...

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Problems solved by technology

[0004] At present, there are endless patented technologies related to air heaters, and this technology is mature. However, many of these patented technologies have some common shortcomings: such as complex structures, high manufacturing costs, and some air heaters have limited heating effects. , high energy consumption, low heating efficiency, etc.; on the basis of some patented technologies, the present invention improves the related structure, improves the heating efficiency and heating effect of the air heater, and simultaneously improves other performances of the air heater

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