Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Status and Standardization of the Water-Chemical Regime for Power Generation Boilers
The need to increase the amount of automatic chemical control is pointed out, especially by measuring the conductivity of cooled probes, including direct and H-cation probes. These studies demonstrate the possibility of automatic chemical control of the phosphate regime in drum boilers and quantitative monitoring of the amount of potentially acid substances, i.e., impurities in the feed water for flow-through boilers. It is proposed that the 2009 standards document STO by the firm NP “INVEL” should be taken as the basis with a number of changes and additions. For the first time, a number of standard limits for amine-containing water-chemical regulation of the steam-gas generating units are recommended. The following limits are proposed for the introduction of an amine water-chemical regime in units without copper-containing alloys: for the turbine condensate the conductivity of an H-cation sample should be less than 1.0 μS/cm and the amount of dissolved oxygen should be less than 20 μg/dm3; the feed water conductivity of an H-cation sample should be less than 1.0 μS/cm and the pH = 8.9 – 9.5; the amount of dissolved oxygen after the deaerator should be less than 10 μg/dm3 and the amount of film-forming amines greater than 10 μg/dm3. Schemes for preliminary treatment of low-mineral natural water with elevated contents of organic materials are proposed which reduce the acidity of the water by 70 – 80%.
Status and Standardization of the Water-Chemical Regime for Power Generation Boilers
The need to increase the amount of automatic chemical control is pointed out, especially by measuring the conductivity of cooled probes, including direct and H-cation probes. These studies demonstrate the possibility of automatic chemical control of the phosphate regime in drum boilers and quantitative monitoring of the amount of potentially acid substances, i.e., impurities in the feed water for flow-through boilers. It is proposed that the 2009 standards document STO by the firm NP “INVEL” should be taken as the basis with a number of changes and additions. For the first time, a number of standard limits for amine-containing water-chemical regulation of the steam-gas generating units are recommended. The following limits are proposed for the introduction of an amine water-chemical regime in units without copper-containing alloys: for the turbine condensate the conductivity of an H-cation sample should be less than 1.0 μS/cm and the amount of dissolved oxygen should be less than 20 μg/dm3; the feed water conductivity of an H-cation sample should be less than 1.0 μS/cm and the pH = 8.9 – 9.5; the amount of dissolved oxygen after the deaerator should be less than 10 μg/dm3 and the amount of film-forming amines greater than 10 μg/dm3. Schemes for preliminary treatment of low-mineral natural water with elevated contents of organic materials are proposed which reduce the acidity of the water by 70 – 80%.
Status and Standardization of the Water-Chemical Regime for Power Generation Boilers
Kirilina, A. V. (Autor:in) / Suslov, S. Yu. (Autor:in) / Larin, B. M. (Autor:in) / Larin, A. B. (Autor:in)
Power Technology and Engineering ; 50 ; 535-539
01.01.2017
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
generating units for thermal power plants , steam boiler , boiler utilizer , water and steam quality , water-chemical regime , coolant water chemical control , feed water impurity concentration , calculations Engineering , Energy Technology , Power Electronics, Electrical Machines and Networks , Renewable and Green Energy , Geoengineering, Foundations, Hydraulics
Status and Standardization of the Water-Chemical Regime for Power Generation Boilers
| Online Contents | 2017
Status and Standardization of the Water-Chemical Regime for Power Generation Boilers
| Online Contents | 2017
Boilers for thermal power generation
| British Library Online Contents | 2016
Multiple-Effect Evaporation Regime in High-Pressure Boilers
| Online Contents | 2002
Multiple-Effect Evaporation Regime in High-Pressure Boilers
| Springer Verlag | 2002