SE “Suntrade”, Saratsky branch (Bunge)

ODESSA REGION

Company:

Location:

Ukraine, Sarata, Odessa region

Characteristics of the object

System for monitoring and recording temperature conditions of the grain drying process of grain dryer DSP-32 - April 2010. System for monitoring grain temperature as part of floor storage - April 2010.

Grain temperature control system as part of floor storage

Project implementation period:

April 2010

Name of the project:

System for monitoring grain temperature in floor storage.

Primary goal:

Improving the quality of grain storage services provided in floor storage warehouses.
Reducing the amount of grain loss caused by the process of self-heating of the grain mass.
Presentation of information about the presence of foci of self-warming.
Increasing the level of fire safety.

Scope of work:

Inspection of the object.
Development of technical specifications.
Development of design documentation for the ESKT-C complex.
Software development.
System components.
System installation.
Commissioning works.

Technical means:

ESKT-Ts system (digital electronic temperature control system).

Compound:

Digital thermal suspensions TsTP.
Information collection blocks BSI-12.
Interface conversion block TRS232 – RS485 GSA V5.
Power supply unit BPT-220 – 24/45.
Work station.

Exercise:

Product temperature control in floor warehouses throughout the entire filling volume.
Display of temperature values.
Generating an alarm when the temperature limit is exceeded.
Tracking the dynamics of temperature changes.
Full statistics with the ability to view preliminary measurements.
Generating reports.

Temperature control is carried out by thermal suspensions of the TsTP type, which are a cable-rope, inside of which, along its entire length, there are DS18B20 digital sensors from Dallas Semiconductor. The mounting unit for the thermal suspension of the central heating system is designed to avoid bending and twisting loads during installation as much as possible. During installation, the properties of the load-bearing structures of the granary are taken into account, which helps to avoid their destruction in cases where the permissible pulling load on the thermal suspensions is exceeded.

Information collection units poll the thermal suspension sensors via the “1-WIRE” interface using the MicroLAN communication protocol. Communication between the information collection units and the workstation is carried out via the RS-485 interface using the MODBUS communication protocol.

The complex is built in such a way as to reduce the number of terminals and other connections to a minimum, increasing reliability.

A PC with the AWP ESKT-Ts software application installed on it is used as a workstation. Possibility provided:

View the temperature readings of each thermal suspension sensor for the maximum temperature in the suspension area.
Represent the temperature value in the suspension zone in the form of colored fields.
Archive current data.
Present data through graphs of temperature changes in the zone of each sensor.
Prevent grain spoilage by signaling an increase in product temperature in a certain zone using color indication.
Generate reports on exceeding temperature limits.

Result:

The mounted grain temperature monitoring system as part of the floor storage continuously monitors the grain temperature, tracking its changes at any point in the grain mound, archives temperature values without human intervention, reducing the likelihood of errors in measurements, allows you to analyze the collected data using graphs and tabular reports, allowing you to determine trends in temperature growth in grain storage areas, pockets of self-heating at the stage of their formation, saves energy resources spent on regular movement of grain for the purpose of cooling it.

System for monitoring and recording temperature conditions

Implementation period:

April 2011

Name of the project:

System for monitoring and recording temperature conditions of the grain drying process of the grain dryer DSP-32.

Primary goal:

Optimization of grain drying modes, increasing the level of safety of the grain dryer DSP-32:

Control of the temperature of the drying agent of the 1st zone.
Control of the temperature of the drying agent of the 2nd zone.
Control of grain temperature in the 1st and 2nd drying zones.
Collection and storage of information, temperature conditions of the process and formation of a log of the dryer operation.

Scope of work:

Development of design documentation for a system for monitoring and recording temperature conditions of the drying process.
Software development.
Complete with temperature measuring equipment.
Installation of temperature measuring instruments.
Commissioning works.

Technical means:

This project uses temperature measuring equipment from AOZT TERA:

Resistance thermal converters: TSP 1-3-Pt100-B-3-1000-10x1-70-D-(-50..500); TSP 1-3-Pt100-B-3-500-10x1-70-D-(-50..500).
Single-channel microprocessor controller: B-RT-UNEZD-EZA-RSM-2I.
Four-channel microprocessor meter: S1-IT-4TS ZA-RGM-3I.

A PC is used as a station for collecting and storing information and temperature conditions of the grain drying process, with installed software of its own design “TECHNOTHERM”. Communication between the station and the meters is carried out via the RS485 interface using the MODBUS protocol.

The software allows you to:

Display the measured temperature in the form of a graph for each measuring channel of the device for the selected period.
View archived data of measured temperatures for each measuring device for a selected period in tabular form.
Generate a log of the dryer operation for a selected period with a specified temperature averaging interval.

Result:

Thanks to the implementation of the project, optimal modes of bringing grain to the required storage parameters and fire-safe operating modes of the DSP-32 dryer were ensured.