马铃薯贮藏库调控系统设计与试验

Design and Experiment of Potato Storage Equipment Control System

针对目前马铃薯贮藏方式、管理方式不当和贮藏效果不佳的问题,根据马铃薯贮藏工艺条件,设计了一套马铃薯贮藏环境调控系统。该调控系统利用温度传感器、湿度传感器和CO2浓度传感器对环境参数进行实时检测,通过调节进出气窗、风机、压缩机组以及加湿装置,对马铃薯贮藏环境的温度、相对湿度以及CO2体积分数等参数进行调控,使贮藏环境中的温度、相对湿度以及CO2体积分数等参数满足马铃薯的贮藏要求。各测点的温度误差在-0.3~0.3℃范围内,各测点温度极差为0.6℃,检测温度与真实温度基本一致;调控试验中,库内温度处在系统设定的允许范围内,库外温度对于库内温度影响较小,相对湿度和CO2体积分数均可控制在合理范围内。该调控系统能够较好地改善马铃薯的贮藏环境。

Aiming to solve the problems of unsuitable storage and management and poor storage effect,a set of potato storage environment control system was designed according to the technological conditions of potato storage.The system used temperature sensor,humidity sensor and CO2 concentration sensor to monitor the environmental parameters in real time.By adjusting the inlet air window and outlet air window,fan,compressors and humidification device,the environment temperature parameters in callus period,the temperature,humidity and CO2 concentration in storage period were regulated.The purpose was to make the storage environment attain the requirements of potato storage.In the temperature accuracy test of each measuring point,the temperature error of each measuring point was within-0.3~0.3℃,and the temperature range of each measuring point was 0.6℃,the monitoring temperature was basically the same as the real temperature on the whole.In the experiment of regulation effect,the temperature of callus period and storage period was within the allowable range of the system set value,while the temperature outside the storage had little effect on the temperature inside the storage,and the humidity and CO2 concentration could be controlled within a reasonable range.Therefore,it was very important to improve the storage environment of potato,accelerate the postharvest callus,prolong the storage period and ensure the quality of potato.