Product Features
The output nitrogen concentration of the nitrogen production system can be continuously adjusted within the range of 98% to 99.5%;
All operations and controls of the nitrogen production system are implemented by PLC (the device can be fully automated or manually operated);
All sewage and drainage systems of the nitrogen production system are automatically controlled for discharge (displayed on the control screen), and the filter is equipped with a differential pressure gauge;
The nitrogen production system has an emergency shutdown function.
★ Nitrogen production capacity: 350Nm3. Hr (MAX);
★ Nitrogen purity: above 99.5%;
★ Nitrogen pressure: 0.5MPa;
★ Insect and gas detection channel length: ≤ 70m;
★ Multi point automatic online sampling and detection capacity for grain heap gas and grain insects: ≤ 45 insect detection points (gas detection points);
★ Butterfly valve switch control
The frequency of collecting equipment and facility status data shall not be less than once per 5 minutes.
The pneumatic control equipment is equipped with a manual and automatic switch.
The system has data detection function
1) This system reserves interfaces for detecting the temperature, humidity, and grain pile temperature of the external air and grain storage space.
2) This system has the function of detecting the operation status of grain storage system equipment and facilities.
3) This system has the function of real-time online detection of gas concentration and pest infestations in grain piles.
4) This system adopts the standard industrial grade field control bus RS485 bus, which can detect data from multiple warehouses in a time-sharing manner.
5) This system can request and obtain real-time grain situation data from the grain situation remote monitoring platform.
6) This system software has the function of automatically obtaining grain situation data from multiple warehouses in a time-sharing manner.
The system has data analysis and prediction functions
1) The "Intelligent Air Conditioning Expert Decision System" of this system can analyze and judge whether relevant conditions are met based on various grain situation indicators, and control relevant facilities to make warnings.
2) The "Intelligent Air Conditioning Expert Decision System" of this system can predict the nitrogen charging and discharging time and evaluate the final implementation effect based on different nitrogen charging and discharging purposes.
3) This system software can automatically analyze data information from multiple warehouses in different time periods.
The system has data storage and retrieval functions
1) This system adopts efficient dynamic database technology, which can conveniently store real-time data.
2) This system adopts efficient dynamic database technology, which can facilitate the retrieval of real-time data.
The system has real-time data display and printing functions
This system has the function of calculating nitrogen filling time, energy consumption, grain pest quantity, etc., and ultimately evaluating the effectiveness of this nitrogen filling
The system has various functions for device control
1) Based on the comprehensive information detection and analysis results, real-time control commands are issued to the air conditioning control system to achieve automatic on/off or start/stop of air conditioning equipment and facilities.
2) The "Intelligent Air Conditioning Expert Decision System" of this system covers various forms of automatic control modes such as nitrogen filling and exhaust.
3) This system has computer manual and remote control functions. Users can easily control related equipment and facilities according to different needs.
4) The system adopts a standard industrial grade field control bus RS485 bus, which can control multiple warehouse equipment in a time-sharing manner.
5) Capable of controlling multiple warehouse air conditioning facilities and equipment in a time-sharing manner.
System composition architecture

Product application performance
The "Multi functional Grain Situation Measurement and Control System" product has started mass production and is being promoted in more than 40 warehouses in Zhejiang, Jiangsu, Guangdong, Henan, Fujian, Beijing, Shandong, and other regions, such as the Yuezhou Provincial Grain Reserve in Zhejiang, Tongxiang Central Grain Reserve in Zhejiang, Qihe National Grain Reserve in Shandong, and Changle National Grain Reserve in Fujian. In particular, in 2015, the Henan Provincial Grain Bureau, a pilot province for the National Grain Storage Intelligent Upgrade Project, listed the project technology as the main function of Henan Province's grain storage intelligent upgrade, and successfully installed it in the first demonstration warehouse of Henan Province's grain storage intelligent upgrade project, Zhengzhou Xinglong National Grain Reserve. It has been put into use and is deeply loved by users. As of the first half of 2016, the "Multi functional Grain Situation Measurement and Control System" product More than 1000 sets have been sold cumulatively, Sold to more than 20 provinces, cities, and districts across the country.