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Air flue type PTC heater

A heater and air duct technology, applied in the field of PTC heaters, can solve the problems of difficult removal, lack of effective filtration, low heating efficiency, etc., and achieve the effect of increasing service life, reducing dust accumulation and dirt, and prolonging service life.

Inactive Publication Date: 2019-03-12
JIANGSU JIUZHOU ELECTRIC APPLIANCE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the shape of the existing PTC heaters used for air duct heating is relatively traditional, and most of them are straight, so the heating efficiency is low, and it is difficult to replace and maintain; at the same time, due to the dust in the gas entering the PTC heater Due to the lack of effective filtration of water vapor and water vapor, dust accumulates on the surface of the PTC heater; and due to water vapor, long-term use will form dirt that is difficult to remove, these factors greatly affect the heating efficiency of the PTC heater, and also increase the cleaning of the PTC heater and the difficulty of maintenance, thereby reducing the service life of the PTC heater

Method used

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Embodiment Construction

[0026] The following will describe in detail with reference to the drawings in the embodiments of the present invention.

[0027] see figure 1 , figure 2 , image 3 , the air duct type PTC heater, comprising a square air duct 10, the square air duct 10 is provided with a fan 20 and at least one group of heating zones 40; the air outlet of the fan 20 is provided with a filter screen 21 for filtering dust and water vapor; further Specifically, in some special application fields or application scenarios with relatively high noise requirements, in order to reduce the noise caused by the operation of the fan, a shock-absorbing and noise-reducing felt is provided on the fan 20, and a silent cover is provided outside the fan 20 to To meet the noise requirements of the PTC heater when it is working. The heating zone 40 includes a plurality of PTC heating plates arranged obliquely, and there is a ventilation gap between two adjacent PTC heating plates for airflow to pass through. ...

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Abstract

The invention discloses an air flue type PTC heater. The air flue type PTC heater comprises a square air pipe. A fan and at least one set of heating areas are arranged in the square air pipe. A filtering net used for filtering out dust and moisture is arranged on an air outlet of the fan. Each heating area comprises a plurality of PTC heating plates arranged obliquely, wherein a ventilation interval for passing of airflow is arranged between every two adjacent PTC heating plates. The filtering net is arranged on the air outlet of the fan of the air flue type PTC heater, dust, particles, moistand the like in the air can be removed, dust accumulation and dirt formation on the PTC porous heating plates in the heating areas and the inner wall of the square air pipe are prevented, the influence of dust accumulation on heating efficiency is reduced, the dust removing frequency and maintenance cost are reduced, the quality of heated air is improved, and meanwhile the heating efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of PTC heaters, in particular to an air duct type PTC heater. Background technique [0002] PTC heater refers to automatic temperature control PTC (Positive Temperature Coefficient, positive temperature coefficient) ceramic heater, which uses PTC ceramic heating element. This type of PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency. It is a kind of Electric heater with automatic constant temperature and power saving. One of its outstanding features lies in its safety performance. Under any application conditions, there will be no "redness" phenomenon on the surface of electric heating tube heaters. Even when the fan fails to stop, the PTC heater will not be fully Heat dissipation, its power will automatically drop sharply. At this time, the surface temperature of the PTC heater is maintained at around the Curie temperature (generally around 250°C), so as n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/18F24H3/04B01D46/12
CPCF24H9/2071B01D46/12F24H3/0405
Inventor 王彬葛文光陈玉林王俊蒋洲朱振亚
Owner JIANGSU JIUZHOU ELECTRIC APPLIANCE CO LTD
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