HARDWARE COMPLEX
of Automation Chemical Monitoring System (ACMS)



Sample Preparation Device of ACMS
Sample Preparation Device of ACMS
Structural scheme of SPD

Full name of system: Automatic Chemical Monitoring System (ACMS) for NPP/TPP power units

Working media: water, steam condensate

The list of equipment manufactured by “EC “Teredo” LLC under this order:

  • Software-Hardware Complex (SHC) cabinets: 2 pcs.
  • Sample Preparation Devices (SPD): 20 pcs.
  • Measuring Stands (MS) for conductivity analysers: 21 pcs.

Customer: “PPA Slavutich” LLC, Kyiv

End user: Not specified (copyright requirements)

Purpose of system development:

ACMS is intended for:

  • continuous control over the water-chemical parameters
  • timely diagnosis of deviations and their causes
  • assistance to operating personnel

Tasks that were solved by “EC “Teredo” LLC during project implementation:

  • development of equipment design and construction
  • assembly of equipment
  • configuring of ICP DAS modules that are mounted in SHC cabinets
  • development of design documentation
  • development of operational documentation

BRIEF OVERVIEW OF TECHNICAL SPECIFICATIONS OF SHC CABINETS

Attributes Values
Controllers ICP DAS
Synchronisation channel between SHC Cabinets Duplicated optical line, Ethernet
Analogue inputs 4-20 мА, used/total 46/56 pcs. in each cabinet od SHC
Digital inputs 24 VDC, used/total 34/48 pcs. in each cabinet od SHC
Field communication RS-485, Profibus DP
Protection degree of cabinet IP66
Power supply 2 inputs 220 VAC 50 Hz in each cabinet of SHC
Automatic Transfer Switch (ATS) Built-in, 24 VDC circuits
ATS scheme Diode scheme
Electric power of each cabinet, not more 200 Watts
Ambient temperature +5...+55 оС
Dimensions, HхWхD 1200х800х300 mm
Weight of each cabinet 80 kg

BRIEF OVERVIEW OF TECHNICAL SPECIFICATIONS OF SAMPLE PREPARATION DEVICES (SPD)

Attributes Values
Performance Frame stands, floor mounting
Frame material Steel, powder coating
Material of the panel Stainless Steel
Sample (working media) Water, steam condensate
Number of sample inputs 1 pcs.
Number of sample outputs to analysers 2 pcs.
Manual sampling Provided
Filtration Provided
Nominal (operating) temperature of input media 200 оС
Maximum temperature of input media 300 оС
Nominal (operating) pressure of input media 11 MPa
Maximum pressure of input media 28 MPa at temperatures of 70 оС
Nominal (operating) flow rate of input media 40 dm3/h
Maximum flow rate of the sample through the SPD at a pressure after the regulator is 2 bar 100 dm3/h
Cooling the sample Water-water heat exchanger, tubular
Outlet sample temperature +2 оС from the temperature of the cooling water
Flow control Calorimetric flowmeter
range: 0,6...120 dm3/h
output signal: 4-20 mA
Pressure regulation Pressure regulator after itself
range: 0...0,68 MPa
Temperature alarming Digital signal to SHC cabinet
setpoint: 45 оС
Temperature protection Temperature safety valve
setpoint: 50 ± 2 оС
Pressure protection Pressure relief valve
setpoint: 0,2 MPa
Ambient temperature range +5...+55 оС
Dimensions, HхWхD 1700х400х250 mm
Weight of each stand, not more 40 kg

BRIEF OVERVIEW OF TECHNICAL SPECIFICATIONS OF MEASURING STANDS (MS)

Attributes Values
Performance Frameless (panel) stands, wall mounting
Material of the panel Stainless Steel
Sample (working media) Water, steam condensate
Number of sample inputs 1 pcs.
Number of measured parameters 1 pcs.
Measured parameter Conductivity
Conductivity measurement range 0,04...20 µS/cm
Sample preparation H-cationization
Nominal (operating) temperature of input media Not more than 50 оС
Nominal (operating) pressure of input media Not more than 0,2 MPa
Nominal (operating) flow rate 10...15 dm3/h
Setting and indication of water flow rate Rotameter
Dimensions, HхW 1000х250 mm
Weight of each stand, not more than 12 kg

FUNCTIONS OF ACMS EQUIPMENT

FUNCTIONS OF SAMPLE PREPARATION DEVICES
  • lowering and stabilising of outlet sample pressure in the range from 0.1 to 0.2 MPa with the possibility of manual adjustment
  • sample cooling
  • measurement and remote data transmission of sample flow rate in the range of 0.6 to 120 dm3/h
  • temperature alarming when sample temperature more than 45 оС
  • protection of analysers from the hot sample by means of a temperature safety valve with a setting of 50 ± 2 оС
  • protection against overpressure of the sample using a safety valve with a setting of 0.2 MPa
  • sample filtering using a mechanical filter
  • manual sampling
FUNCTIONS OF MEASURING STANDS
  • setting the sample flow through the analyser measuring cell using a rotameter
  • H-cationification of the sample before conductivity measurement by means of an ion exchange column
  • visual control of ion exchange resin due to transparent ion exchange column material
  • water drainage to change the ion exchange resin
  • placement and maintenance of the functioning of the conductivity analyser
FUNCTIONS OF SHC CABINETS
  • measurement and transformation of analogue and digital information
  • gather information from field devices via Profibus DP
  • information transfer to the ACMS server
  • technical diagnostics of the cabinet components

Photos of system equipment


View the description of Gas / Pneumatic / Hydraulic Stands made by “EC “Teredo” LLC