DUAL VENTURI FOR COMBUSTOR

摘要

The present invention relates to a dual venturi for a combustor and, more specifically, to a dual venturi for a combustor which can control, in two stages, the amount of gas and air supplied to a burner provided in a water heater, wherein a motor and a damper are combined in such a manner that the damper is rotated by the driving of the motor, and thus the damper simultaneously opens or closes the inlet for secondary air and gas, thereby efficiently controlling the quantity of heat. The dual venturi comprises: a housing which has a first gas inlet and a second gas inlet on one side of the upper part thereof, and which has an interior divided by a partition wall such that a first passage and a second passage are formed; and an opening and closing means which is disposed in the housing, has an upper part connected to the second gas inlet such that gas flows therein, and controls the flow of air and gas by closing or opening the second passage as a damper is rotated by a motor provided on the exterior of the housing.

主权项

1. A dual venturi for a combustion apparatus, comprising:
a housing (10) having a first gas inlet (14) and second gas inlet (15) formed at one side of an upper portion thereof and divided therein by a partition wall (13) to have a first passage (11) and a second passage (12); and an opening and closing unit (100) provided within the housing (10), connected to the second gas inlet (15) at an upper portion thereof such that gas is introduced into the opening and closing unit (100), and controlling flows of air and gas by closing or opening the second passage (12) along with rotation of a damper (142) by a motor (180) provided at an outer side of the housing (10).