Semiconductor heating drying device

Abstract

The invention discloses a semiconductor heating drying device, which belongs to drying equipment and solves the problem that the cold energy of cooled dry air cannot be reclaimed and the problem that the temperature difference between the cold end face and the hot end face of a semiconductor thermopile in the traditional drier. The semiconductor heating drying device comprises a box type shell, the semiconductor thermopile, a cold end heat exchanger, a hot end heat exchanger, a circulating pipeline and a pre-heating cylinder, wherein the circulating pipeline passes through the pre-heating cylinder along the axial direction; an inlet of the circulating pipeline is connected with an air outlet of a drying chamber in the shell; and an outlet of the circulating pipeline is communicated with the upper end face of the cold end heat exchanger; the lower end face of the cold end heat exchanger is connected with an inlet of the pre-heating cylinder through a pre-heating pipeline; and an outletof the pre-heating cylinder is communicated with the lower end face of the hot end heat exchanger through a backheating pipeline. The semiconductor heating drying device has a compact structure, is easy to mount, does not exhaust wet and hot air and does not pollute environment. Compared with electric heating or positive temperature coefficient (PTC) heating and drying equipment, the semiconductor heating drying device is lower in electric power consumption. The whole device has few mechanical motion parts, is high in reliability, is easy to repair and maintain, has long service life, has a good effect of dehumidifying and drying articles and is suitable to be used in houses or hotels.

Description

technical field [0001] The invention belongs to drying equipment, in particular to a semiconductor heating and drying device. Background technique [0002] Existing drying devices at home and abroad are generally divided into exhaust type and dehumidification type according to the exhaust method. The exhaust type has high temperature and humid air to be discharged, which is easy to pollute the indoor air. The dehumidification type condenses the moisture that can only be dried in the hot and humid air in the machine and discharges it out of the machine. There is no hot and humid air discharged, which will not pollute the air and affect the environment. Their common feature is high power consumption and high temperature drying, which is not suitable for some items. In order to overcome the above-mentioned shortcomings, there have been devices that use semiconductor thermopiles for drying in recent years. [0003] Semiconductor heating (cold) is an electronic heating (cold) ...

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Problems solved by technology

[0007] The invention provides a semiconductor heating and drying device, which solves the problem that the existing dryer cannot recover the cooling capacity of the cooled dry air, and the temperature difference between the cold end surface and the hot end surface of the semiconductor thermopile is too large, thereby further improving its heating efficiency

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