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Case study 1

Swimming pool systems

AUTOMATION OF SWIMMING POOL SYSTEMS

The modern swimming pool system consists of equipment that is connected by control technology, in order to enable effective management and control.

Pool water is treated with different filtration systems, measurement and regulation systems for measuring and regulation of pool parameters, and dosing systems.

All the swimming pool system information is displayed in the SCADA graphic, with the possibility of connecting to the web and set alerts to cell phones.

The system allows remote monitoring, for control and service diagnostics.



Automation of swimming pool systems





EXAMPLE

Controlmatik ABW has successfully automated a large number of swimming pool systems in hotels and local (municipal) systems, and major thermal spas.

Pictures: Ptuj spa resort & water park, Thermal Spa resort Dolenjske Toplice , Hotel Larix.

Automation of swimming pool systems


CHALLENGE

The desire of operators of swimming pool systems is automation and the complete overview of the pool equipment and its functions:


  • Water fill up and water heating
  • Filter washing
  • Neutralisation of wastewater
  • Dosing of chemicals
  • Control of chemicals in the warehouse or in the pool equipment room - safety
  • Measuring and recording the pool parameters and regulation of these parameters
  • Operation of hydro-air massage


SOLUTION

The solution of the problem is automation of the complete swimming pool system, enabled by modern measuring, regulation and control equipment designed by Controlmatik ABW.

Measurement of pool parameters

  • Free chlorine
  • pH
  • Redox potential (ORP)
  • Water temperature

Measurement is performed by Compact swimming pool measurement & regulation unit



Automation of swimming pool systems

Compact swimming pool measurement & regulation units M5265C - with cabinet

Automation of swimming pool systems

Compact swimming pool measurement & regulation units M5265C - without cabinet

Automation of swimming pool systems

Measuring unit with separate samples for pH, Redox and Free Chlorine



All data from each pool parameter measurement is connected to the PLC control system and further to SCADA control system. Data can be transmitted via 4-20mA current loops or via digital communication CAN.

For optimal control and quick system response, it is important to sample directly from the pool. In case of long sample lines, we provide quick sample with additional sample pump.

Dosing of Chemicals

  • Gaseous chlorine
  • Liquid chlorine
  • Chlorine Dioxide
  • Ph correctors (liquid or gas CO2)
  • Flocculants for better filtration

Dosing is carried out by Motor driven rate valves for chlorine gas or CO2 and by Metering Pumps.



Automation of swimming pool systems

Motor driven rate valves with Rotameters for dosing of gas chlorine

Automation of swimming pool systems

Compact swimming pool measurement & regulation units with metering Pumps for liquid chlorine and pH corrector.



Control of motor valves for dosing gases or metering pumps for dosing chemicals, can be carried out in two ways:


  • from the central controller, which receives data from individual measuring sensors
  • from measuring sensors, with output to built in PID regulator; output can be pulse or analog, and in the latest version of motor valves also as digital communication-ModBus

The chlorine station safety equipment

  • Chlorine gas Cylinders
  • Chlorine gas neutralisation system

Every chlorine station is provided with a Chlorine gas detection sensor, that detects and indicates chlorine concentrations in the air, and additionally with Neutralisation system, a device that neutralises chlorine gas in case of uncontrolled gas leakage.

Alarm about leakage is transferred to the SCADA control system, and also to operators personal telephone and a fire station.



Automation of swimming pool systems

Chlorine storage area with chlorine gas cylinders

Automation of swimming pool systems

Chlorine gas Neutralisation system



Switchboards and control cabinets with

  • Synoptic schematics
  • Switch and control technology (PLC)

The core of the pool equipment room is electro control cabinet, which is powering the following equipment: Filter pumps, ejector pumps for vacuum, pressure compressor, metering pumps for pH and flocculant, pumps for water and air massages, pump station, pool lights, switchboard and control panel, measuring and regulation equipment, pneumatic and electric actuators.

Automatic operation mode allows automatic filtering of pool water, automatic filter washing, activation of hydro and air massage on the selected schedule, regulation of pool parameters, water heating and filling up when necessary, and neutralistion of wastewater.

In addition to automatic operation, the system can also be controlled manually, in case of failure on the controller.

The controller program carries out automatic control of the pool system and allows the user to control it via SCADA graphic system. The controller is connected to the OPC server on the PC, transferring the data to the SCADA graphics or vice versa.


Automation of swimming pool systems

Electro control cabinet with synoptic schematic of pool system and chlorine station with Neutralisation system for Cl2


Automation of swimming pool systems

The inside of electro control cabinet with switches and programmable controllers (PLC)



SCADA control system allows:


  • Monitoring and control of the pool equipment
  • Recording and history of pool parameters
  • Recording and history of Alarms
  • Alerting the user to his mobile phone
  • Web access to the system


Automation of swimming pool systems

Example of Display of entire system with individual system components, which open with the click of a mouse

Automation of swimming pool systems

Display of Hydro-air massages operation

Automation of swimming pool systems

Display of Filter operation and washing




Automation of swimming pool systems

Display of Parameter measurements

Automation of swimming pool systems

Display of Regulators parameters

Automation of swimming pool systems

Trend display



BENEFITS of Controlmatik ABW
automated pool system