Thermometry systems of grain elevators
According to the technology of storage of grain products, it is necessary to control the temperature of the grain bulk in order to prevent quality deterioration and loss of grain as a result of self-heating. The technologist, knowing the initial values of the temperature in different layers of the grain mound, analyzes its changes over time and, in case of exceeding the permissible value, carries out technological operations for artificial cooling with the help of active ventilation or moving grain from one silo to another. Considering the fact that these operations have a negative effect on the quality of the product, they should be carried out on the basis of reliable information about the temperature state of the grain embankment. In order to timely detect the emergence of zones of grain bulk with elevated temperature, the means used for temperature control must provide high sensitivity and introduce a small measurement error.
The INNOVINNPROM's remote temperature control system (RTCS) is designed for automatic remote multi-channel temperature control in grain storages and warehouses. According to the data of RTCS, the staff can predict the dynamics of temperature changes and prevent it from exceeding the established limits in a timely manner.
The system provides round-the-clock continuous monitoring, recording, archiving and printing of temperature values at monitored points.
This is a modern computer system that works in real time with any types of thermal pendants and thermal sensors.
Functions of the "RTCS" system
- Automatic multi-channel temperature control;
- Display of results in the form of a color field;
- Tracking the dynamics of temperature growth;
- Measurement of external temperatures and humidity;
- Viewing and printing data for any day;
- Software testing of connecting lines;
- Automatic correction of results;
- Forming and sending reports for printing;
- Provision of remote access to measurement data via the Internet.
Composition of the RTCS 2014
RTCS consists of thermal suspensions located in granaries, a local unit and an automated workplace. RTCS can work with different types of thermal suspensions at the same time:
- Thermal pendants based on copper resistance sensors;
- Thermal pendants based on thermocouple sensors;
- Thermal pendants based on digital semiconductor thermometers.
Technical characteristics of RTCS
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Range of controlled temperatures, °С
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-55 ... + 125
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Accuracy of temperature measurement in the range of -10 ... + 85, °С
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0,5
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Discreteness of temperature display, °C
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0,1
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Ambient humidity measurement range, %
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0 ... 100
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Accuracy of ambient humidity measurement, %
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0,5
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Humidity indication resolution, %
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0,1
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Ambient temperature range, °С
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-30 ... + 50
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Ambient humidity at a temperature of +35 °С,%
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≤ 98
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Supply voltage, V
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220, 50 Гц ± 1 Гц
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Power consumption, W
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≤ 20
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Breakdown voltage between galvanically isolated circuits, kV
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1,0
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PC communication interface
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RS485
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Warranty period of system operation, years
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1
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The term of operation of the system, years
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10
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Storage period of temperature and humidity measurement data, years
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1
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Software
"RTCS-2014" software is implemented on the basis of the virus-resistant Linux operating system.
The software provides connection with local units and ensures receipt of temperature data, their statistical processing and storage in the built-in database, generation and sending of reports for printing.
The temperature field of the elevator is presented in the form of a color scheme, indicating the dynamics of temperature changes in the silos.
It provides the ability to transmit information in enterprise networks and the Internet.
Functional capabilities:
- Monitoring of temperature indicators both in powerhouses as a whole and in separate silos and thermal suspensions with the frequency set by the operator;
- Control of the dynamics of temperature changes;
- The possibility of setting temperature ranges while monitoring the dynamics of temperature changes;
- Keeping statistics and providing measurement reports with the possibility of viewing and printing results for the selected date and time.
Certificate of conformity for the system
Implementation
The thermometry operator's automated workplace is usually installed in the grain laboratory, local units can be mounted both on the galleries and on the side walls of the silos below, depending on the customer's needs.
We develop and manufacture thermometry controllers and install local units:
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Calculate the composition and cost of the elevator thermometry system
Glyanec