MULTI-BLOCK GAS Russian patent published in 2019 - IPC F23N1/00 

FIELD: power engineering.

SUBSTANCE: invention relates to heat engineering and can be used for ignition, load control and disconnection of gas burners of heat generating plants. Multi-unit gas comprises interconnected means of shutting off gas supply and gas supply means to ignitor. Gas supply shutoff means is a double electromagnetic valve having a housing, inside which the first seat is arranged, first membrane gate with unloading opening, first membrane with bypass holes, arranged between housing flange and its cover, first slide valve is arranged to overlap/open discharge opening of first membrane gate, connected to first electromagnet armature and to first membrane gate. On the housing gas supply means and gas outlet means are fixed. Gas outlet means is made in the form of a pipeline rigidly fixed in the housing wall, the first end extending beyond the housing. Additionally, there are arranged inside housing second seat, second membrane gate valve with unloading opening, second membrane with bypass holes, arranged between housing flange and its cover, second slide is arranged to overlap/open discharge opening of second membrane gate, connected to second electromagnet armature and to second membrane gate. First gas duct is located between gas supply means and second membrane gate, wherein membrane of first gate is installed with possibility of gas pipeline shutoff. Volume of the housing is divided by a partition into two parts, the first of which is located under the membrane of the first gate, and the second part is located under the membrane of the second gate, at that said second gate is arranged to discharge gas into gas outlet, at that gas outlet means adjoins second diaphragm shutter.

EFFECT: simplified design.

9 cl, 2 dwg