Pipes and Appliances
For the internal surfaces of pipes and appliances heating biggest problem is their overgrowing of hardness salts. Experimentally determined that the sediment thickness of 1 mm reduce heat loss by 15%. Layer of scale has a large thermal resistance of heat flow, which leads to lower temperature coolant and a decrease in the heat of the heating system. This means that the reduced heat transfer and bandwidth pipes. As a result, the temperature drops in the premises, and to maintain it at the level of sanitation necessary to increase the cost of fuel for boilers. To restore the normal operation of the heating system under similar conditions used hydrodynamic and pnevmogidroimpulsny cleaning methods.
However, the most effective way to remove scale to date is considered to be chemical washing, in which all deposits are dissolved by means of reagents and subsequently removed from the system under pressure. Method based on the use of aqueous solutions of mineral and organic acids (or their composite solutions), as well as alkalis, solvents and complexing agents. In addition, in order to prolong the life of pipe technology provides for the mandatory introduction of the washing solution of corrosion inhibitors. They envelop the metal and do not let him eat, so the only dissolves scum. Ingredients used chemical reagents for Each heating system is individual.
He was selected based on diagnosis of the nature and composition of the scale with obligatory consideration of the materials from which the following system elements (copper, steel (including stainless) aluminum, brass, iron, light alloys and galvanized surfaces). Please note that a number of heating devices, for example, aluminum radiators, you can not wash the alkaline and acid solutions. Mandatory condition for work on chemical leaching is the tightness of the heating system. If it is broken, the chemical cleaning method is unacceptable because the allocated evaporation (eg, a pair of inhibited hydrochloric acid) can lead to poisoning of people. In general, this method is environmentally safe, since removal of solutions from the system occurs only after their neutralization. Upon completion of work carried out anti-corrosion treatment of internal surfaces of pipelines (passivation). Descaling and deposits in the heating of buildings using chemical cleaning provides a full restoration of pipeline capacity, increases their service an average of 10 – 15 years, allows up to 30% reduction in the cost of heat loss. * Thus, timely and quality service to the basic elements of building engineering systems and structures is a prerequisite implementation of the overall system objectives for the intended use. The use of modern pumping equipment to significantly increase reliability, eliminate service arrangements between scheduled maintenance and reduce operating costs. Press office ooo grundfos "
