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Air heater

A technology of air heaters and heaters, which is applied in the direction of air heaters, fluid heaters, lighting and heating equipment, etc. It can solve the problems of low air heating efficiency, heat loss in the length of air pipes, and large volume, etc., to increase the area , small size, ensure the effect of stability

Active Publication Date: 2009-07-15
SUZHOU MINGZHI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of air heater usually makes its volume larger, and because the length of the air pipe is longer, it also brings heat loss, and the air heating efficiency is low.

Method used

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Embodiment Construction

[0017] as attached figure 1 to attach Figure 6 As shown, an air heater includes a heater body 3 with a compressed air inlet 1 and a compressed air outlet 2, a plurality of heating rods 4 and a thermocouple 5 for controlling the heating temperature. The heater body 3 includes a plurality of heating rods 4 embedded in the heater body 3, a U-shaped body wall 6 with a heating channel 7 located outside the plurality of heating rods 4, and the heating channel 7 is composed of A plurality of U-shaped cavities 8 provided on the U-shaped body wall 6 are connected end-to-end.

[0018] Specifically, the U-shaped cavities 8 on the two side walls of the U-shaped body wall 6 are alternately arranged, and the U-shaped cavities 8 on the same side wall of the U-shaped body wall 6 are not connected, and only communicate with the U-shaped cavities on the opposite side wall. The cavities 8 are connected. as attached Figure 7 As shown, since two adjacent U-shaped cavities 8 on the same side ...

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PUM

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Abstract

The invention relates to an air heater, comprising a heater body with an air inlet and an air outlet, a plurality of heating rods and a thermoelectric couple which is used for controlling heating temperature, wherein, the heating body comprises a plurality of heating rods embedded on the heating body and a U-shaped body wall provided with a heating channel arranged outside a plurality of heating rods, and the heating channel is formed by a plurality of U-shaped cavities which are communicated by connecting end with end on the U-shaped body wall. When compressed air enters through the air inlet, the compressed air moves from one side of the U-shaped body wall to the other side thereof in the U-shaped cavities, then moves back through the U-shaped cavities from the other side; following the pattern, the compressed flows out from the air outlet along the air U-shaped cavities with ends connected after one operating process, therefore, the surface of the U-shaped body wall is made full use of, thus increasing the area of heat exchange, relatively lengthening the heating process and decreasing the volume of the produced heater.

Description

technical field [0001] The present invention relates to an air heater. Background technique [0002] In the prior art, the air heater used for heating compressed air usually includes an air pipe and a heating element located in the cavity of the air pipe. In order to increase the heat exchange area of ​​the compressed air and increase the heating efficiency, the compressed air is heated Usually, the method of bending the air duct to lengthen the length of the air duct is used to increase the air heat exchange area. However, such an air heater usually has a large volume, and since the long length of the air pipe also brings heat loss, the air heating efficiency is low. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide an air heater with high thermal efficiency and small volume. [0004] The present invention can be implemented through the following technical solutions: an air heater...

Claims

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Application Information

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IPC IPC(8): F24H3/04
Inventor 俞建平
Owner SUZHOU MINGZHI TECH