STEL -10Н-120-01 (mod. 120-А)

"Salt Solution In" - supply of salt solution to the electrochemical reactor;
"Acid Solution In" - supply of acid solution to the electrochemical reactor during installation maintenance;
"Catholyte Out" - catholyte outlet;
"Anolyte Out" - anolyte outlet.

Figure 2. Rear panel of electrochemical block of reactors and current changer.

1 - fitting to supply salt solution to the block of reactors;
2 - fitting to supply acid solution during block of reactors flushing;
3 - catholyte outlet fitting;
4 - anolyte outlet fitting;
5 - fuse;
6 - electromagnetic valve to supply water to the installation - "Water In";
7 - socket to connect float liquid level detector - "Detector";
8 - socket to connect the "IP-STEL-600 220V" current changer;
9 - system for connection to water line;
10 - pressure water line;
11 - tap to open the reactor flushing system.

The electromagnetic valve marked with "Water In" is intended to supply water to the installation. Also located on the rear panel of the installation are sockets for connection of current changer and float liquid level detector, tap to open reactor flushing system, fuse, wires to connect the block of reactors to the current changer and electric mains.

Automatic operating mode of the installation is enabled in the presence of accumulator reservoir "Е" which is used for anolyte collection and distribution to users. A float level controller fixed in the reservoir automatically switches the installation on and off depending on the amount of anolyte in the accumulator reservoir.

Attention!
This modification of the STEL-120-А installation IS NOT COMPLETED with accumulator reservoir.

The electromagnetic valve together with the connecting system is used to connect the installation to a pressure water line. The system includes: tap operating in "Open"-"Closed" mode, gauze filter, and adjustable water flow stabilizer (WFS).

Electrochemically activated solutions (catholyte and anolyte) are synthesized in the anode and cathode chambers of the electrochemical reactor respectively from salt water while it flows through the annular gap between electrode and diaphragm. Every microvolume of water flowing in the reactor chambers comes into contact with the electrode surface and is enriched with highly active products of electrochemical changes.

Solutions synthesized in the installation can be used not only for washing, disinfection and sterilization, but also for prophylaxis and treatment of various diseases. Their basic advantage over conventional medicines is full biological compatibility and harmlessness because they do not contain chemical elements and compounds that are alien to a human organism. At the same time, these solutions are the most powerful of all known regulators of redox and catalytic processes taking place in live organisms.

The principle of installation operation consists in the following: water from a pressure water pipeline is supplied to the inlet through a tap operating in "Open" - "Closed" mode. Then the water flows through a filter, water flow stabilizer (WFS), electromagnetic valve, water flow sensor to the inlet of an ejector pump which performs dosed supply of salt solution into the main water stream, using the "NaCl solution" tap. Then the water mineralized with salt solution enters the cathode chamber of the electrochemical reactor from where it runs to the anode chamber of the reactor. The "Catholyte" tap is used for partial discharge of catholyte to drain. The anolyte synthesized in the reactor flows into an accumulator reservoir for distribution to users.

5. SAFETY PRECAUTIONS

With the installation switched on, it is forbidden to:

replace fuses;
dismantle and repair the installation;

It is forbidden to store and transport the installation with water remains inside at temperature below 0°C;

Be careful when carrying out istallation maintenance and follow safety precautions for handling acids and alkalines.

6. PREPARATION FOR OPERATION

Locate the installation in a room equipped with combined extract and input ventilation, in immediate proximity to a pressure water pipeline tap, sewage, and European-type receptacle.

Connect the hydraulic system to the pressure water pipeline.

Figure 3. Hydraulic circuit diagram of the "STEL-120-А" installation.

1 - pressure water pipeline;
2 - connecting system;
3 - block of reactors;
4 - catholyte outlet;
5 - anolyte outlet;
6 - accumulator reservoir;
7 - float liquid level detector;
8 - shutoff cock for discharging from accumulator reservoir.

Using the reinforced hose, connect "Water Inlet" of the installation with the fitting of Water Flow Stabilizer (WFS).

Place the accumulator reservoir on a stand in such a way so that free (convenient) anolyte tapping from the shutoff cock located at the bottom of the reservoir is provided.

Connect the connector of the float level controller attached to the accumulator reservoir with the "Level Detector" terminal located on the rear panel of the installation. Be sure that the detector of the float level controller is in the vertical position downwards.

Prepare a container (15-20 litres) with sodium chloride solution (NaCl) and lower the hose with filtering mouthpiece connected to the "Salt Solution Inlet" fitting into the container.

Direct the "Anolyte Out" and "Catholyte Out" hoses to the sewage.

Set the "Catholyte" tap located on the front panel of the installation to the "ON" position by turning it counterclockwise, set the "NaCl Solution" tap to the "OFF" position.

The tap located on the rear panel of the installation must be in the "OFF" position.

Set the toggle switch on the current changer to the "32 V" position.

Connect the connector from the block of reactors to the terminal located on the rear panel of the "STEL-600" current changer.

Connect the connector from the current changer to the "To 220 V power supply" socket located on the rear panel of the block of reactors.

Connect the "220 V" cable from the block of reactors to a European-type receptacle.

7. OPERATING PROCEDURE

Turn the hydraulic system tap handle to the "ON" position.

Switch the installation on by setting the "Power" toggle switch located on the front panel of the installation to the ON position.

Adjust the hydraulic mode of installation operation with the help of the pressure water pipeline tap, WFS regulator, and "CATHOLYTE" tap. Set the required water volume flow through the "ANOLYTE" (Anolyte out) and "CATHOLYTE" (Catholyte out) hoses in accordance with Appendix 1 which is the mode-flow chart of the installation. (Filling of a 250 ml measuring bottle from the "ANOLYTE" (Anolyte out) hose for 8 seconds corresponds to 113 l/h anolyte output rate. See Table 1).

Set the "Power" toggle switch located on the front panel of the current changer to the "ON" position.

By adjusting the amount of "NaCl solution" entering the installation with the help of the "NaCl solution" tap, set the current by ammeter (A) in accordance with the selected mode as per the mode-flow chart of the installation. (Appendix 1).

When the installation is in stable operation, direct the "Anolyte out" hose into the accumulator reservoir, and the "Catholyte out" hose into drain or a catholyte accumulator reservoir for the purpose of using it as detergent.

After 1.5-2 hours of operation, the installation will change over to cyclic automatic mode not requiring permanent attendance of the operator.

Caution!
Do not allow the electrolyte to be fully spent! Periodically add solution of the same concentration into the container with saturated NaCl solution.

8. MAINTENANCE

Carry out cyclic maintenance of the installation every 10-15 hours of operation (after 1000-1200 litres of solution are synthesized), for which purpose flush the reactor with acid solution to remove cathode deposits from the electrodes.

Flushing is carried out in the following sequence:

unplug the installation from the mains;
shut off water to the installation from pressure water pipeline;
turn the "NaCl solution" tap to the "OFF" position; turn the "Catholyte" tap and tap on the rear panel of the installation to the "ON" position;
prepare 1-1.5 litres of 10% hydrochloric acid (HCl) solution in a standard plastic container (bottle);
screw reducing busing (1) together with blower (2) on plastic bottle (3) filled with acid solution;

Figure 4. Block of reactors flushing diagram.

1 - reducing busing for connecting to plastic container;
2 - pneumatic blower;
3 - plastic container;
4 - acid solution inlet fitting;
5,6 - used acid solution discharge fittings.
screw adapter together with the hose connected to the "Acid Solution In" fitting (4) of the flushing system on the reducing busing after removing the plug from the adapter; Figure 4.
lower the anolyte (6) and catholyte (5) outlet hoses into an empty plastic container;
by pressing pneumatic blower (2), allow the acid solution to enter the empty plastic bottle through the electrochemical reactor; a typical reaction accompanied by foaming of effluent acid solution and gas liberation indicates normal flushing process; Necessary precautions should be taken to prevent acid solution from spitting.
leave the acid solution in the reactor for 15-20 minutes;
if necessary, repeat flushing by rearranging the reducing bushing onto the plastic bottle with pumped acid solution;
once flushing is over, cleanse the reactor with water to remove acid leavings, close the tap located on the rear panel of the installation and put the installation to operational conditions.

9. FAULTS AND FAULT REMOVAL METHODS

Trouble	Probable cause	Remedy
Operating current not set.	1. Salt solution supply hose filter clogged up. 2. Cathode hydroxide deposits. 3. Insufficient electrolyte concentration.	1. Clean the filter. 2. Flush the electrochemical reactor with acid solution. 3. Ensure necessary electrolyte concentration.
Required volume flow not set.	1. Low pressure in water-supply line.	1. Ensure necessary water-supply line pressure.
Current changer not switched ON with normal water flow.	1. Fuse blown. 2. Poor contact between current changer terminals and sockets of the installation. 3. Water flow sensor clogged up or its magnetic disk stuck.	1. Replace the fuse. 2. Ensure reliable contact in the connections. 3. Clean the water flow sensor and ensure free movement of the magnetic disk.
Installation not switched on in automatic operating mode.	1. Hindered movement of the float level detector.	1. Ensure the float level detector moves freely inside the accumulator reservoir along the vertical.
In case of other faults return the installation to the Manufacture.

10. TRANSPORTATION AND STORAGE

The installation shall be transported in the Manufacturer's packing by closed-type transport facilities at air temperature of 5 to 40°С and relative humidity not more than 80% at 25°С.

The installation in the Manufacturer's packing shall be stored in a heated room with natural ventilation at ambient temperature of 5 to 40°C and relative humidity of 80% at 25°С.

11. MANUFACTURER'S WARRANTY

Manufacturer warrants operational capability of the installation if transportation, storage, mounting and operating conditions are observed by the user.

Warranty period of operation is 1 year from the date of commissioning, but not greater than 2 years from the date of shipping to the user.

12. ACCEPTANCE CERTIFICATE

The STEL-10N-120-01 (model 120-А) installation for electrochemical synthesis of detergent, disinfectant and sterilizing solutions complies with the specifications and has been found suitable for operation