English
Grain is a basic substance necessary for human life, and its storage and preservation are important to the livelihood of the people. Grain depots are the basis for macro-control of grain. Therefore, intelligent control and precise management of grain depots are the key to achieving safe and efficient grain storage. The most important of these is grain storage and pest control in grain depots.
Grain respires during storage, releasing carbon dioxide. When grain is piled too high or ventilation is poor, carbon dioxide can accumulate at the bottom of the pile, posing a suffocation hazard.
Carbon monoxide is a toxic gas produced during combustion. If there is a fire or combustion in the grain warehouse, carbon monoxide will be released. Carbon monoxide has a serious toxic effect on the human respiratory and circulatory systems.
Phosphine is currently the most economical and effective fumigant gas used to kill insects and inhibit mold in stored grains, but it will be toxic to the human body if it exceeds a certain dose. After inhalation from the respiratory tract, it will irritate the respiratory tract, causing mucosal congestion, edema, and alveolar congestion. In severe cases of toxicity, there will be bleeding symptoms. When PH3 is absorbed through the alveoli and reaches the whole body, it will affect the central nervous system, heart, liver, kidneys and other organs.
The granary gas monitoring system needs to establish a regional gas alarm monitoring system with the monitoring center as the main control center and each area as a self-contained system. This gas detection and monitoring system mainly includes four levels: gas detection layer, regional alarm control layer, data transmission layer, and monitoring center layer. The number of on-site control monitoring points is determined by the area and number of granaries. The various values of all monitoring points are finally converted into digital signals and transmitted to the upper management host for centralized management and monitoring. The dynamic information of gas leakage in each area can be grasped in time, so that the safety management personnel can timely and comprehensively understand the dynamics of gas leakage in each area, and take corresponding measures in time to achieve the purpose of controlling the gas concentration in the on-site environment within a safe range.
BH-60 fixed gas detector is used to detect the concentration of combustible gas or other toxic and harmful gas in the air. When the concentration reaches or exceeds the preset alarm value, the controller will send out an audible and visual alarm to remind people to take safety measures in time to prevent explosion and poisoning accidents, thereby protecting life and property safety.
The BH-50 controller uses an industrial touch 4.3-inch/7-inch LCD screen, which is highly stable, accurate and intelligent. It has a rich external control port. Users can freely choose the type and access port of the transmitter to be connected, and can perform on-site detection and alarm through simple settings. The system has integrated sound and light alarms and provides a relay normally open control terminal.
The cloud IoT system is used to remotely monitor the on-site gas concentration leakage environment and remote real-time monitoring. When abnormal situations occur on site, managers can take timely measures.
