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1. (WO2017156650) GAS VALVE CAPABLE OF ACHIEVING SYNCHRONOUS CHANGE IN BOTH OUTER-RING FIRE AND INNER-RING FIRE

Pub. No.:    WO/2017/156650    International Application No.:    PCT/CN2016/000566
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Sat Oct 15 01:59:59 CEST 2016
IPC: F16K 5/02
F16K 5/10
F16K 27/06
Applicants: LI, Xuebo
李雪波
Inventors: LI, Xuebo
李雪波
Title: GAS VALVE CAPABLE OF ACHIEVING SYNCHRONOUS CHANGE IN BOTH OUTER-RING FIRE AND INNER-RING FIRE
Abstract:
A gas valve capable of achieving a synchronous change in both outer-ring fire and inner-ring fire, comprising a valve body (1) and a valve core (2). A ventilation chamber (4) is provided on the lower part of the valve core (2), and outer-ring fire holes (3) are provided on the side wall of the ventilation chamber (4). An inner-ring fire groove (5) is provided on the outer peripheral wall of the valve core (2) and the inner-ring fire groove (5) is in communication with an inner-ring nozzle gas outlet passage (13). A transition airway (14) and an auxiliary airway (15) are provided inside the valve body (1). The transition airway (14) branches into two paths, one connecting the outer-ring fire holes (3) to an outer-ring nozzle gas outlet passage (12), and the other connecting the outer-ring fire holes (3) to the inner-ring fire groove (5). The auxiliary airway (15) is in communication with the inner-ring nozzle gas outlet passage (13). Gas, in the gas valve, first passes through the outer-ring fire holes, the gas outlet amount of which is adjusted by rotating the valve core, and then is re-distributed. Therefore, as long as the amount of gas passing through the outer-ring fire holes is changed, the outlet amount of gas from the outer-ring nozzle gas outlet passage and from the inner-ring nozzle gas outlet passage is synchronously changed.