VALVE SUPPLY DEVICE Russian patent published in 2022 - IPC F23N1/00 

FIELD: power engineering.

SUBSTANCE: device for gas supply to at least one burner (11) in a device supplied with gas or a mixture of air and gas is proposed. In this case, gas supply device (10) has supply pipeline (12) that passes from inlet end (13) to outlet end (14), while, along supply pipeline (12), following elements are installed in series: input element (15) with two electric valves (18a, 18b) coaxial to each other or separated from each other and interacting with at least one first hole (19) available in supply pipeline (12), and retained in a normally closed state by two corresponding retaining springs (20a, 20b), wherein electric valves (18a, 18b) are made with the possibility of switching in each case to an open state under the impact of at least one coil (21) with power supply, connected to one or both of electric valves (18a, 18b); pressure regulator (16) equipped with valve (22) interacting with second hole (23) available in supply pipeline (12), and connected to first regulating membrane (24) capable of limiting adjusting chamber (25), in which the internal pressure is equal to atmospheric one, wherein first regulating membrane (24) is also connected to regulating spring (26) made with the possibility of setting the gas pressure downstream relatively to second hole (23), depending on the compression force applied to regulating spring (26) by mechanical calibration device (27); flow regulator (17) containing fixed case part (34) with through hole (35), fixed in supply pipeline (12), movable case part (36) equipped with flap (37) locking through hole (35) in order to set in each case the cross section of a gas passage, depending on their mutual position, and second movement element (38) made with the possibility of positioning flap (37) at least between the open position and the partially closed position, in which through hole (35), respectively, is opened and partially closed by flap (37).

EFFECT: invention allows in each case to supply the exact and necessary amount of gas in accordance with requirements, type of gas and ratio of air and gas required in each case.

16 cl, 12 dwg