Air energy heat cycle preserved fruit drying apparatus and automatic temperature control method thereof

Abstract

The invention discloses an air energy heat cycle preserved fruit drying apparatus and an automatic temperature control method thereof. The apparatus comprises an air energy heat pump (1), a dehumidifier (2), drying chambers (3) and heat passing pipelines, wherein the air energy heat pump (1), the drying chambers (3) and the dehumidifier (2) are subjected to sequential circulation connection through the heat passing pipelines, the air energy heat pump (1) is connected with a total heat passing pipe (4), the total heat passing pipe (4) is connected with the plurality of the drying chambers (3) through a plurality of branch heat passing pipes (5) connected in series, the top portion of the drying chambers (3) is provided with a total heat regeneration pipeline (6), branch heat regeneration pipelines (5) on the plurality of the drying chambers (3) are connected in series, and then are connected with the total heat regeneration pipeline (6), the total heat regeneration pipeline (6) is connected with the dehumidifier (2), heat regulation switches (8) are arranged inside every branch heat passing pipe, and the total heat regeneration pipeline is further provided with an exhauster (12). According to the present invention, the series connection heat passing pipeline heat distribution process is adopted to match with the plurality of the drying chambers so as to achieve a function of concurrent drying of multiple varieties of the plurality of the drying chambers through a single heat source.

Description

technical field [0001] The invention relates to a dried fruit drying device and a temperature control method thereof, in particular to an air energy heat cycle dried fruit drying device and an automatic temperature control method thereof. Background technique [0002] Preserved fruit is a snack food with a long history. At present, there are three main drying processes for preserved mango: (1) Hot air drying process. Mainly use coal combustion or pure electric heat as the energy source, and use the hot air generated as the medium for drying preserved mangoes. This method is the most traditional and has the widest application time and scope; (2) Microwave drying process. The microwave method is used to dry mangoes. This method has a fast drying speed, but consumes a lot of power and is highly destructive to the molecules of mangoes; (3) Solar drying process. This process is widely used in the western region of the United States. This method is energy-saving and environmental...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an air-energy thermal cycle dried fruit drying device and its automatic temperature control method. A single air-energy heat pump is used to circulate heat to multiple drying rooms, and the temperature is controlled by an intelligent control system to overcome the In the prior art, the shortcomings of high energy consumption and low continuous working efficiency are used to achieve the purpose of continuously drying preserved fruits efficiently

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