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Waste Gas Burners

 

Waste Gas Ignition & Burner System

• Sizes 2" through 12"

•  All stainless steel construction in flame area

•  Automatic ignition and re-ignition

•  Stoichiometric pilot on all burners

•  Efficient combustion with biogas

• BTU value as low as 400/cu. ft.

•  Reliable "downdraft prevention" for wind protection

•  Flame retention vortex vanes vastly improve burning efficiency

•  Pilot system operates as low as 9" WC (standard components)

•  Quick, easy maintenance

The Model 8391B includes an ignition system with all of the best features available in a waste gas burner.

The burner wind shield contains the unique "downdraft prevention" with a bevel design which virtually eliminates the possibility of the flame being blown out. The design also provides the proper air/fuel mixture to ensure an efficient burn.

The wind shield will control outside winds, up to200 MPH, and operates efficiently in heavy rains. This will prevent smoke and odors from permeating the neighborhood.

Features

The automatic ignition option provides extra high reliability coupled with "state-of-the-art" positive pilot ignition. When gas is to flow, a signal to the control panel causes the solenoid to open, providing gas to the pilot. The ignitor then sparks until the pilot is lit.

The system does not require compressed air, adjustments for various gases, or separate ignition line. You may choose to locate the control panel close to the burner or at some remote distance.

The unique burning system of the Groth gas flares contain flame retention vortex vanes in the tip of the burners and when coupled with the "downdraft prevention" in the shield, the result is an updraft and an air mixing action that will provide excellent high efficiency, smokeless and odorless burning.

With the prevention of "flame licking", the requirement for a remote ignition source (flame front) and associated piping and other problems are eliminated. Trouble-free startup is assured. All adjustments and maintenance can be performed safely at ground level.

An additional benefit to the "downdraft prevention" in the main burner is the fact that winds up to 200 MPH or heavy rain will not take-out the flame. The control system provides contacts for remote indication of "Pilot flame failure" and "Pilot flame on", as well as panel lights for "Pilot flame on", "Pilot flame failure", "Thermocouple OK" and "Pilot gas on".

All Groth pilot systems are provided with an inspirating venturi to insure a stoichiometric mixture of the pilot gas. A solenoid valve is included with each automatic pilot system. Fuel consumption of the pilot is only 50,000 btu/hr. Normal operating pressure range of the pilot is 9" WC to 10 PSIG. The reduced fuel consumption at a manageable waste gas pressure means that it might be possible to utilize biogas for the operation of the pilot system. However, natural gas with a supply pressure of 5 to 10 PSIG (specify exact pressure when ordering) is recommended for optimum pilot operation.

The Groth Model 8391B offers several options to meet your specific requirements. For example, the burner can be provided with:

• Manual Electric Ignitor which will provide manual startup ignition from a remote location. A switch in a remote  weatherproof enclosure will be provided to operate a sparking electrode at the pilot tip. (Flame sensing is not included in this system).
• Automatic Electric Pilot Ignition System which provides a fully automatic start-up, flame monitoring, re-ignition and alarming system. This automatically operated system will provide autoignition from a contact closure (usually a pressure switch), sense pilot flame status, provide automatic reignition sequencing and flame failure alarm, and provide status lights on the control panel and contacts for remote monitoring. A manual mode override will be provided on the control panel. Additionally, the pilot solenoid valve is included in the fully automatic system manifold.
• Dual Flame Sensing which provides pilot shut down while main burner flame is burning and reignition if main burner flame fails, conserving pilot fuel.

Operation

When gas is to flow to the burner, a signal to the control panel (normally, a contact closure) causes the solenoid to open, providing a stoichiometric air/fuel mixture to the pilot. The ignitor begins sparking and continues until the pilot is lit. The flame sensor will signal "flame on" and the sparking will cease. When the biogas arrives at the burner tip, ignition immediately takes place and the burn is continuous until the gas supply is removed. The pilot will continue to be ignited until the signal is received (contact is opened). The pilot start signal may be provided by a Groth supplied pressure switch. When flaring of the gas is required again, the above sequence will be repeated.

Maintenance

All components and controls for the pilot system are easily accessible at ground level. No components that would require adjustment or periodic maintenance are located in the flame area. Most maintenance checks can be made safely while the burner is in operation.

Burner Construction

Carbon Steel lower burner pipe with 150# flange mounting. Stainless steel upper burner pipe and windshield. Alloy pilot nozzle and cast iron venturi. Self supporting on 150# flange with 150 mph winds and zone 4 seismic coefficient. Other mounting plates optional. Control panel may be remotely installed from burner.

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