Tobacco dryer and dry-wet bulb temperature sensor control method

Abstract

The invention discloses a tobacco dryer and a dry-wet bulb temperature sensor control method. The tobacco dryer comprises: an indoor unit comprising an indoor heat exchanger working as a condenser and used for providing heat for a drying chamber; an outdoor unit comprising a compressor and an outdoor heat exchanger working as an evaporator; a curing barn located in the drying chamber and used for storing tobaccos needing to be baked; an upper shed dry-bulb temperature sensor; an upper shed wet-bulb temperature sensor; a lower shed dry-bulb temperature sensor; a lower shed wet-bulb temperature sensor; and a controller configured to obtain the structure type of the drying chamber, wherein the structure type comprises an airflow descending type and an airflow ascending type. The installation states of the upper shed dry-wet bulb temperature sensors and the lower shed dry-wet bulb temperature sensors are determined based on the structure type, the upper shed dry-wet bulb temperatures and the lower shed dry-wet bulb temperatures, the upper shed dry-wet bulb temperatures and the lower shed dry-wet bulb temperatures are corrected based on the structure type and the installation states, and the curing room temperature is adjusted in time to avoid abnormity in the curing process.

Description

technical field [0001] The present application relates to the technical field of tobacco, and more specifically, to a method for controlling a tobacco dryer and a wet and dry bulb temperature sensor. Background technique [0002] In the process of tobacco curing, heat pump heating technology is generally used, which can not only improve the quality of tobacco curing, but also reduce the difficulty of tobacco curing. [0003] In the existing curing process, the upper shed and the lower shed of the drying chamber are equipped with dry and wet bulb temperature sensors. If the ball kettle is knocked off and the wet and dry bulb sensor is pulled off the fixed frame, the upper and lower sheds may be installed reversely or the dry bulb temperature sensor and wet bulb temperature sensor may be installed reversely. [0004] However, if the wet and dry bulb temperature sensor is installed upside down, the drying chamber will operate in an abnormal state without corrective treatment, ...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a tobacco dryer, which is used to solve the technical problem in the prior art of regulating and controlling the temperature of the drying room in the drying room when the dry and wet bulb temperature sensors of the upper and lower sheds cannot be installed upside down in the prior art. The tobacco dryer includes:

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