摘要:
The invention is an apparatus that is a synergistic combination of a windshield and a pilot light assembly for a gas burner heater. The apparatus provides reliable operation of the gas burner heater in high air flow conditions, where the air flow would normally cause the pilot light to be extinguished. The windshield, which is a partially perforated tubular chamber, provides a protected zone against high velocity air infusion for the entire pilot light assembly. The apparatus works in concert with the pilot light assembly, which also has components that provide protection from wind and can be quickly removed allowing quick cleaning and easy maintenance. The major components of the pilot light assembly are a pilot light orifice with a flame, a vented pilot housing (stack), a flame deflector cap, a pilot light gas line, a thermocouple with connecting electrical leads, a pilot base, a mounting bracket, and a windshield that surrounds the pilot light and the thermocouple. The flame deflector cap directs the flame toward the thermocouple. There is also a restrictor plate for restricting the flow of updrafts across the thermocouple and directing the flame toward the thermocouple. The invention is particularly useful in poultry brooder heaters, both ceramic and radiant, which are prone to failure as a consequence of the pilot light being blown out by the fresh air being drawn through the chicken house. The apparatus reduces the time to service a brooder.
摘要:
An air inlet damper apparatus for minimizing the entrance of outside air into a poultry house when the ventilation exhaust fans are running and the radiant tube heater is not operating. The apparatus has a housing with a passage and a coupling flange; a pin that spans the passage and divides the apparatus into a low pressure side and an outside high pressure side, where the low pressure side is in fluid communication with a blower supplying combustion air to the tube heater; a damper blade connected to the pin; a stop; and a means for controlling the damper blade. The controlling means is responsive to pressure. The damper blade pivotally opens away from the stop when there is a static pressure differential that is higher than the negative pressure created by the ventilation exhaust fans, or when the controlling means electromechanically actuates the damper blade.
摘要:
The present invention is a system that utilizes high pressure gas (greater than ½ psig) to control flow rate and gas discharge velocity to enable interchangeability between a plurality of gases without having to change the gas/air mixing venturi size or air opening. A new approach is to use the available incoming higher gas pressure to the appliance then control the volumetric flow rate with the first orifice and then use a second orifice to change the velocity of discharge into the gas/air mixing venturi of the burner and therefore have adjustability of gas air mixing conditions without having to change the burner system or air flow control even when changing between very different fuel gases.
摘要:
A safety device for disabling a positive pressure radiant tube heater upon failure of the heat exchanger and a corresponding method are described. This invention relates to the ability to detect a condition where a failure of the heat exchanger triggers the safety device and disables the heater. The safety device includes a low melt wire; an insulating sleeve positioned about the low melt wire, the wire and sleeve positioned on top of the reflector, a tension device to maintain the wire under tension; and a control device to disable the heater if the wire is discontinuous.
摘要:
The present invention is a system that utilizes high pressure gas (greater than ½ psig) to control flow rate and gas discharge velocity to enable interchangeability between a plurality of gases without having to change the gas/air mixing venturi size or air opening. A new approach is to use the available incoming higher gas pressure to the appliance then control the volumetric flow rate with the first orifice and then use a second orifice to change the velocity of discharge into the gas/air mixing venturi of the burner and therefore have adjustability of gas air mixing conditions without having to change the burner system or air flow control even when changing between very different fuel gases.
摘要:
A safety device for disabling a positive pressure radiant tube heater upon failure of the heat exchanger and a corresponding method are described. This invention relates to the ability to detect a condition where a failure of the heat exchanger triggers the safety device and disables the heater. The safety device includes a low melt wire; an insulating sleeve positioned about the low melt wire, the wire and sleeve positioned on top of the reflector, a tension device to maintain the wire under tension; and a control device to disable the heater if the wire is discontinuous.