Heat pump type curing barn environment humidity control system

Abstract

The invention discloses a heat pump type curing barn environment humidity control system. The heat pump type curing barn environment humidity control system comprises a heat pump unit, a circulation fan, a moisture exhausting fan, an electric control cabinet and a heat exchanger with an air feeding and moisture exhausting function which are arranged in a heat pump unit room; an air exhausting duct is laid above the heat pump unit room; an end opening of the air exhausting duct is provided with an air exhausting door; moisture exhausting high-temperature waste gas in a curing barn is led into the air exhausting duct of the heat pump unit room through a moisture exhausting duct; the moisture exhausting duct is provided with a moisture exhausting door; the moisture exhausting duct is located in a circulation return air duct at the upper part of the curing barn; one end opening of the air exhausting duct is provided with an air exhausting door; a fresh air ventilation duct is located in the circulation return air duct at the upper part of the curing barn; one end of the fresh air ventilation duct is communicated with the outside through a fresh air ventilation door; the other end of the fresh air ventilation duct intersects with the moisture exhausting duct in the curing barn; the intersection of the moisture exhausting duct and the fresh air ventilation duct is provided with a fresh fed air and moisture exhausted air heat exchanger; and a temperature sensor and a humidity sensor are arranged in the heat pump unit room.

Description

Technical field: [0001] The invention relates to a drying system suitable for drying agricultural products, which utilizes waste heat circulation to improve thermal efficiency. Background technique: [0002] Existing agricultural products use room dryers and mesh belt dryers in the drying process. The shortcomings are that they are unsafe and consume a lot of energy. In order to overcome the above shortcomings, in recent years, most of my country has adopted heat pumps as heat sources. However, when the heat pump is used in a low temperature environment (such as in winter in northern my country, the thermal efficiency will be greatly reduced, and the key components of the heat pump such as the compressor and the heat-conducting steel pipe will be frosted, causing the heat pump to fail to continue working. Summary of the invention: [0003] The task of the present invention is to provide a drying system that can ensure the use of high-temperature and high-humidity exhaust gas discha...

AI Technical Summary

Problems solved by technology

[0002] In the drying process of existing agricultural products, room type dryers, mesh belt dryers, etc. are used. The disadvantages are: first, it is unsafe and consumes a lot of energy. In order to overcome the above defects, most of my country has adopted heat pumps as heat sources in recent years. However, when the heat pump is used in a low-temperature environment (such as winter in northern my country, the thermal efficiency will be greatly reduced, and the key components of the heat pump such as the compressor and the heat-conducting steel pipe will frost, which will cause the heat pump to fail to continue to work.

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