FIELD: process engineering.
SUBSTANCE: invention relates to cleaning the heat exchanger surfaces of scale and corrosion. This process involves application of ascorbic acid, complexing agent, water and, possibly, auxiliary additives to be forced or pouted via heat exchanging hardware. Cleaning composition is fed from expansion tank of cavitation-thermal generator. The latter allows a hydrodynamic heating of cleaning fluid to 70-130°C and swirling of liquid by hydrodynamic cavitation. Note here that before application of said composition heat exchange hardware is filled with water to be heated by cavitation-thermal generator to 50-70°C.
EFFECT: higher power and process efficiency, decreased consumption of cleaning composition, non-polluting process.
3 cl, 6 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOUND FOR CHEMICAL CLEANING OF SURFACES FROM SCALE AND CORROSION | 2002 |
|
RU2206034C1 |
| ACTIVE REDUCING AGENT OF COMPOUND FOR REMOVAL OF SCALE AND CORROSION DEPOSITS FROM VARIOUS SURFACES | 2005 |
|
RU2305143C1 |
| COMPOSITION FOR CHEMICAL CLEANING OF PRODUCT SURFACES FROM SCALE AND CORROSION DEPOSITS | 1995 |
|
RU2114215C1 |
| METHOD OF CLEANING INTERNAL SURFACES OF BLAST-FURNACE COOLERS FROM SCALE-AND-CORROSION DEPOSITS | 1999 |
|
RU2154109C1 |
| MEANS FOR CHEMICAL CLEANING METAL SURFACES | 2016 |
|
RU2644157C1 |
| METHOD OF REMOVING SCALE-CORROSION SEDIMENTS FROM METAL SURFACES OF CARBON NON-ALLOYED STEELS | 2014 |
|
RU2581347C1 |
| COMPOSITION FOR REMOVING SCALE | 2006 |
|
RU2328452C2 |
| PREPARATION FOR SCALING AND CLEANING OF INTERNAL SURFACES OF HEAT POWER AND PROCESS EQUIPMENT FROM SCALING DEPOSITS | 2020 |
|
RU2738662C1 |
| SCALE REMOVAL COMPOSITION | 2013 |
|
RU2515829C1 |
| METHOD FOR REMOVAL OF RUST FROM SURFACE OF FERROUS METAL ARTICLES | 1993 |
|
RU2026325C1 |
