FIELD: fire fighting, particularly, methods of preparation of low-expansion foam. SUBSTANCE: method may be used in sublayer fire extinguishing in which foam is supplied to under layer of burning liquid. The method includes supply of gas and jet of foaming solution under pressure to entrap gas and to mix them. Pressure drop in obtained mixture is produced to value larger than counterpressure of burning liquid. Then obtained mixture is additionally mixed in flow under this pressure. During mixing, additional ejection of gas is possible by flow of partially formed mixture. EFFECT: higher efficiency of foam generation in sublayer fire extinguishing. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LOW-EXPANSION FOAM GENERATOR FOR SUBLAYER FIRE-EXTINGUISHING IN TANK | 2003 |
|
RU2242260C1 |
| LOW EXTENSION FOAM GENERATION DEVICE FOR SURFACE FIRE- EXTINGUISHING IN RESERVOIR | 2003 |
|
RU2257927C1 |
| FOAM GENERATOR (VERSIONS) | 1999 |
|
RU2145680C1 |
| FOAM ATTACK PROCEDURE FOR FIRE EXTINGUISHING IN TANK BATTERY | 2018 |
|
RU2689450C1 |
| DEVICE FOR EXTINGUISHING COMBUSTIBLE LIQUID FIRE INTO RESERVOIR | 2002 |
|
RU2232041C1 |
| METHOD OF SUB-LAYER FIRE EXTINGUISHING IN OIL PRODUCT RESERVOIRS, FOAM PROCESSING AND SUPPLY SYSTEM AND FIRE PROTECTION SYSTEM FOR RESERVOIRS | 2019 |
|
RU2745857C2 |
| SYSTEM OF LAYER-BY-LAYER FIRE EXTINGUISHING IN VOLATILE FLAMMABLE LIQUID RESERVOIRS AND VIBRATION FOAM GENERATOR | 2009 |
|
RU2411053C1 |
| HIGH EXPANSION FOAM FIRE EXTINGUISHING MODULE | 2021 |
|
RU2768836C1 |
| CHAMBER OF LOW-FACTOR FOAM | 2009 |
|
RU2401677C1 |
| METHOD OF FIRE PROTECTION OF RESERVOIRS FOR STORAGE OF LIQUID COMBUSTIBLES AND DEVICE FOR ITS REALISATION | 2010 |
|
RU2425702C1 |
