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Electric heating device with uniform thermal field

An electric heating device and electric heater technology, applied in the direction of electric heating device, ohmic resistance heating parts, heating element shape, etc., can solve the problem of low heat transfer coefficient, low heat exchange tube temperature and high tube wall temperature of the runway serpentine structure Problems, to achieve long service life, improve heat transfer coefficient, low temperature effect

Pending Publication Date: 2021-08-17
无锡华能电热器材有限公司
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AI Technical Summary

Problems solved by technology

The disadvantages are: the heat transfer coefficient of the serpentine structure of the runway is low, and the temperature of the tube wall is high
In addition, the distance between the heating wire and the heat exchange tube is not equal, the temperature of the heat exchange tube close to it is high, the temperature of the heat exchange tube far away is low, and the thermal field is uneven

Method used

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  • Electric heating device with uniform thermal field
  • Electric heating device with uniform thermal field
  • Electric heating device with uniform thermal field

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Embodiment Construction

[0027] The present invention will be further described now in conjunction with accompanying drawing.

[0028] Such as Figure 1 to Figure 3 As shown, an electric heating device with a uniform thermal field includes an electric heater 3 , an incubator 1 , a heat exchange pipe 2 , a distribution pipe 61 , a confluence pipe 71 , a liquid outlet pipe 72 and a liquid inlet pipe 62 .

[0029] There are multiple electric heaters 3 and heat exchange tubes 2, and the electric heater 3 is fixed in the incubator 1; the heat exchange tubes 2 are spirally arranged, and the inlet 23 and the outlet 24 of the heat exchange tube 2 are located at the same end, and the other One end turns in a U shape to form two tubes winding at intervals, the heat exchange tube 2 is vertically arranged, and the heat exchange tube 2 is set on the electric heater 3; the distribution tube 61 is connected to the inlet 23 of the heat exchange tube 2; the liquid inlet tube 62 is connected to the The distribution pi...

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Abstract

The invention relates to an electric heater, in particular to an electric heating device with a uniform thermal field. The electric heating device comprises a plurality of electric heaters, and further comprises a heat preservation box in which the electric heaters are fixed; heat exchange pipes which correspond to the electric heaters one to one and are wound on the electric heaters, so that first pipelines and second pipelines which are alternately distributed can be formed on the electric heaters, and the flow directions of heat exchange media in the first pipelines and the second pipelines are different. According to the electric heating device with the uniform thermal field, the heat exchange coefficient is increased through the spirally-arranged heat exchange pipes, the thermal field is uniform, the temperature of the heat exchange pipes is low, the service life is long, and liquid drainage is easy.

Description

technical field [0001] The invention relates to an electric heater, in particular to an electric heating device with a uniform thermal field. Background technique [0002] The heat exchange tube of the existing radiant electric heater adopts a serpentine structure in the form of a racetrack, and the heating element adopts an electric heating wire. The advantages are: the serpentine structure of the racetrack is easy to drain liquid, and the electric heating element is easy to replace. The disadvantages are: the heat transfer coefficient of the serpentine structure of the runway is low, and the temperature of the tube wall is high. In addition, the distance between the heating wire and the heat exchange tube is not equal, the temperature of the heat exchange tube close to it is high, the temperature of the heat exchange tube far away is low, and the thermal field is uneven. Contents of the invention [0003] In order to solve the above problems, the present invention provi...

Claims

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Application Information

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IPC IPC(8): H05B3/02H05B3/40H05B1/02
CPCH05B1/02H05B1/0297H05B3/02H05B3/40
Inventor 戚洪明
Owner 无锡华能电热器材有限公司
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