It is known that the use of the majority of reagent technologies of anti-scum treatment of water from municipal heating systems from carbonate-calcium deposits is limited by the quality range of the source water and, in particular, the content of calcium ions and carbonate ions in it. For example, the use of anti-scum reagent treatment of network water with OEDFC reagents, AFON, PAF, IOMS and their analogues is recommended for conditions when the carbonate index does not exceed 8 (meq / dm ³)². In the practice of communal heat supply systems, the water used for feeding, as a rule, has significantly larger carbonate index values ​​(25-40 (mEq / dm³) ²).

Our organization has developed and successfully tested a new method of anti-scum reagent treatment of network water at high values of carbonate index of the source water.

Use of the new method made it possible to almost completely suppress carbonate-calcium scum formation. Confirmation of the high efficiency of this new method is the ability to ensure not only the anti-scum treatment of network water, but also, if necessary, by changing the processing mode, to carry out the process of “soft” washing of the surfaces of heat exchange equipment from previously formed calcium carbonate-calcium deposits “on the go", which guarantees the complete absence of deposits in the system.

Thus, this method can be used both to protect heat supply systems from deposits with high carbonate-calcium hardness of the source water, and to wash the heat-exchange surfaces from previously formed deposits and with relatively low values of carbonate-calcium hardness of the source water. Moreover, in the latter case, it is sufficient to use the regimes of periodic reagent treatment, which significantly improves the economy of the process.

 

 

 

   

As it is known, the previously used domestic and foreign technologies of anti-scum reagent treatment of network water did not offer such an opportunity.

While the technology was applied in closed heating systems, it can be easily adapted for open heating systems, since all chemical reagents introduced into the network water have MACs for drinking water, which allows you to organize the processing mode according to their values.

Possible modes of operation of dosing stations:

• continuous dosing regimen;
• proportional dosing mode from a pulse signal (water meter) or from an external current signal (flow meter).

Package of the proposed equipment:

• Standard metering pump (inlet valve, discharge and metering valves, anchor bolts for mounting the pump, mounting base, set of connecting hoses)
• Reagent Level Sensor
• Water meter with pulse output (Dy: 15-250mm)
• Reagent tank (dosing container with volume: 60, 100, 200, l)

• The cost of the dosing station is determined on the basis of the cost of its individual components, which, in turn, are selected by our specialists individually for each customer, according to the technical features of the existing facility and technological characteristics of the reagent used.

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