METHOD OF AUTOMATIC ADDRESS DISCONNECTION OF WATER SUPPLY TO EMERGENCY AREAS OF INTERNAL FIRE-FIGHTING WATER LINE AT FAILURE OF TIGHTNESS OF ITS HYDRAULIC NETWORK AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2016 - IPC E03C1/00 F17D5/02 

FIELD: water supply.

SUBSTANCE: group of inventions relates to water supply. Method consists in control over water movement in an area of a hydraulic network of an internal fire-fighting water line and control over the use of fire valves located with that area, as well as in logical conversion of incoming information on presence of a water flow within the area of the network and the use of fire valves within that area. Fact of a water leakage from an internal water line network is confirmed by presence of a liquid flow within the controlled area of the hydraulic network and by the closed state of all shutoff cocks of fire valves located with the area of the network. Device comprises a feed or a transit pipeline, lifting or dropping pipes with fire valves arranged on them, shutoff fire cocks of which are provided with indicators of their closed/open position, as well as an address logic information processing unit. Input of each controlled hydraulic area additionally includes hydraulically in series a liquid flow indicator and a controlled valve. Contacts of the indicator are connected to the first conjunction input of the address logic information processing unit. Electromagnet of the controlled valve is connected to the output of the address logic information processing unit. Contacts of each indicator of shutoff cocks of fire valves position are connected to the second conjunction input of the address logic information processing unit.

EFFECT: provided is protection of premises against flooding due to emergency disconnection of water supply independently from the place the emergency situation occurrence, provided is operability of the internal fire-fighting water line at failure of tightness of shutoff cocks of separate fire valves under the effect of high temperature of fire, identification of the fire valve, Identification of the hydraulic network area.

2 cl, 2 dwg