Automatic control system for preparation of UKH-109 spent fuel casks for dry storage

Automatic control system for preparation of spent fuel casks for dry storage is used to manage the equipment responsible for such processes as drying, leakage monitoring, and inert gas filling of UKH-109 reinforced concrete casks with RBMK spent fuel.

The system is developed on the basis of advanced software/hardware and includes:

  • automated operator’s work station;
  • control cabinet;
  • local control panel.

Automated operator’s work station is essentially a touch-screen PC used for manual process control, automatic control mode setting, and data logging and reporting monitoring. Equipment malfunctions, process failures, equipment maintenance and certification needs are communicated to the operator via displayed messages.

The system is intended to handle the reinforced-concrete and metal package sets that are compatible with UKH-109 and other containers.

The advantage of the system is almost full process automation.

Since the spent fuel storage facilities are different in design, the decision on equipment configuration is made individually for each storage facility.

Automated operator’s work station
Dimensions (height х width х depth), mm 300 х 600 х 100
Max net weight, kg 20
Analog channels for standardized DC (4-20 мА) signals receipt and processing, pcs. 16
Analog channels for receipt and processing of resistant thermometers signals, pcs. 16
«Dry contact» signal input channels:
Number of channels, pcs. 7
Input DC, mА 10
Switching voltage, V 24
Control signal output channels:
Number of relay contacts, pcs. 2
Current, А 1
Switching voltage, V 24
Control cabinets
Dimensions (height х width х depth), mm 1460 х 1000 х 200
Max net weight, kg 95
Measuring channels:
Analog channels for standardized DC (4-20 мА) signals receipt and processing, pcs.шт 17
Analog channels for standardized DC (0-10 V) signals receipt and processing, pcs. 7
Analog channels for receipt and processing of resistant thermometers signals, pcs. 10
«Dry contact» signal input channels:
Number of channels, pcs. 112
Input DC, mА 10
Switching voltage, V 24
Control signal output channels:
Total number, pcs. 96
Current, А 0.5
Switching voltage, V 24
Local control panel
Dimensions (height х width х depth), mm 300 х 600 х 100
Max net weight, kg 20
Communication with UKH process control equipment via RS-485 interface
Number of ports, pcs. 1
Bit rate, Mbit/s 10