Intelligent management control system and method for mechanical ventilation in grain storage

Abstract

Disclosed is a grain storing mechanism venting intelligent management control system and the method for control thereof. The system comprises a computer for storing, PLC storehouse roof axial flown fan control system, PLC centrifugal flown fan control system which are connected on the RS232-RS422 converter; the computer is connected to the grain situation detecting system; the PLC storehouse roof axial flown fan control system is connected with storehouse roof axial flown fan and the LC centrifugal flown fan control system is connected with storehouse ground centrifugal flow fan. The function of the management control software is realizing automatic control of the venting process of the storehouse and recording the grain situation changes.

Description

Technical field: [0001] The invention relates to a grain storage system, in particular to a grain storage mechanical ventilation intelligent management control system and a control method thereof. Background technique: [0002] The research on mechanical ventilation technology for grain storage began in the 1930s, but it was not promoted and applied in the United States, Britain, France, the Netherlands, Australia, Russia, Japan, Argentina and other countries until the 1950s. In the past 50 years, scholars from various countries have done extensive research on the mechanism of ventilated grain storage and the law of physical state changes inside grain piles under ventilated conditions, and have achieved many research results with practical application value. form an independent discipline. In some developed countries, the mechanical ventilation grain storage technology has become standardized and normalized. At the same time, there are a series of standard devices and perfe...

AI Technical Summary

Problems solved by technology

However, some key technologies of the system have not been solved, and there are certain limitations in the popularization and application: First, the ventilation conditions set by the system are difficult to adapt to the different natural climate conditions, different warehouse types, and different ventilation stages of grain storage machinery in the vast areas of our country The need for ventilation; secondly, the system uses a high-power mobile centrifugal fan for ventilation, and it is necessary to temporarily install the mobile centrifugal fan at the vent when ventilating, and the fan must be disassembled when the ventilation is over; thirdly, the system is not installed by a computer Controlled automatic opening and closing dampers and automatic opening and closing windows still need to be manually operated on-site when the ventilation starts or when the ventilation conditions are not available. In fact, the automatic control of the ventilation process cannot be realized.

Images