High velocity combustion furnace and burner

A combustion system for burning air and gas, comprising:

• an air manifold for receiving the air;
• a gas manifold for receiving the gas, one of said manifolds being disposed within the other;
• aspiration means for combining the air from said air manifold with the gas from said gas manifold and create an air/gas mixture;
• restricting means for creating a turbulent flow and restricting the volumetric flow of the air/gas mixture;
• said aspirating means being juxtaposed to said restricting means, and
• means for preheating the air and gas while inside said air and gas manifolds.

A combustion system for burning air and gas comprising:

• an air manifold for receiving the air;
• a gas manifold for receiving the gas;
• first means for uniting the air in said air manifold with the gas in said gas manifold to create an air/gas mixture;
• second means for creating a turbulent flow of the air/gas mixture to cause additional mixing of the air and gas and for restricting the volumetric flow of the air/gas mixture;
• said first means being juxtaposed to said second means, and
• a combustion chamber having a plate, said plate also being a cover for said air and gas manifolds and acting as a heat transfer surface to preheat the air and gas in said air and gas manifolds.

A combustion system for burning air and gas comprising:

• an air manifold for receiving the air;
• a gas manifold for receiving the gas;
• first means for uniting the air in said air manifold with the gas in said gas manifold to create an air/gas mixture;
• second means for creating a turbulent flow of the air/gas mixture to cause additional mixing of the air and gas and for restricting the volumetric flow of the air/gas mixture;
• said first means being juxtaposed to said second means;
• said first means including a tube inside said manifolds communicating with said air manifold for the passage of air through said tube;
• said tube having a plurality of ports therethrough communicating with said gas manifold whereby an aspirating effect is created by the air flow across said ports causing the gas to flow into said tube;
• a combustion chamber having a flue gas exit wherein the cross-section of said flue gas exit is approximately eight times the size of the cross-section of said tube.

A combustion system for burning air and gas comprising:

• an air manifold for receiving the air;
• a gas manifold for receiving the gas;
• first means for uniting the air in said air manifold with the gas in said gas manifold to create an air/gas mixture;
• second means for creating a turbulent flow of the air/gas mixture to cause additional mixing of the air and gas and for restricting the volumetric flow of the air/gas mixture;
• said first means being juxtaposed to said second means;
• said first means including a tube inside said manifolds communicating with said air manifold for the passage of air through said tube;
• said tube having a plurality of ports therethrough communicating with said gas manifold whereby an aspirating effect is created by the air flow across said ports causing the gas to flow into said tube;
• said second means including diffuser disposed within said tube;
• said air and gas manifolds having a common side which is subjected to the heat of combustion whereby the air and gas within said air and gas manifolds are preheated, said common side engaging said tube and transferring heat thereto.

A combustion system for burning air and gas comprising:

• an air manifold for receiving the air;
• a gas manifold for receiving the gas;
• first means for uniting the air in said air manifold with the gas in said gas manifold to create an air/gas mixture;
• second means for creating a turbulent flow of the air/gas mixture to cause additional mixing of the air and gas and for restricting the volumetric flow of the air/gas mixture;
• said first means being juxtaposed to said second means;
• said first means including a tube inside said manifolds communicating with said air manifold for the passage of air through said tube;
• said tube having a plurality of ports therethrough communicating with said gas manifold whereby an aspirating effect is created by the air flow across said ports causing the gas to flow into said tube;
• said second means including a diffuser disposed within said tube;
• said diffuser having a flattened upstream end, a rod-like mid-portion, and a flared downstream end.

A combustion system for burning air and gas comprising:

• an air manifold for receiving the air;
• a gas manifold for receiving the gas;
• first means for uniting the air in said air manifold with the gas in said gas manifold to create an air/gas mixture;
• second means for creating a turbulent flow of the air/gas mixture to cause additional mixing of the air and gas and for restricting the volumetric flow of the air/gas mixture;
• said first means being juxtaposed to said second means;
• said first means including a tube communicating with said air manifold for the passage of air through said tube, said tube having a plurality of ports therethrough communicating with said gas manifold creating an aspirating effect;
• said aspirating means including a tube within said manifolds and said restricting means including a rod disposed within said tube.

A combustion system for burning air and gas thereby creating a flue gas and heating a work piece comprising:

• an air manifold for receiving the air;
• a gas manifold for receiving the gas, one of said manifolds being disposed within the other;
• an aspirating means for uniting the air in said air manifold with the gas in said gas manifold to create an air/gas mixture;
• means for creating a turbulent flow of the air/gas mixture to cause additional mixing of the air and gas and for restricting the volumetric flow of the air/gas mixture;
• said aspirating means being juxtaposed to said means;
• a hearth on which the work piece rest;
• a combustion chamber about said hearth;
• and
• means for preheating the air and gas inside said air and gas manifolds.

A method of burning an air/gas mixture including:

• passing combustion air into an air manifold;
• impinging the air on a mounting plate;
• transferring heat from the mounting plate to the air;
• forcing the preheated air into the upstream end of an air control pipe;
• deflecting the preheated air on a diffuser rod;
• flowing the combustion air through the air control pipe at a high velocity;
• creating an aspirating effect on gas inlet ports in the air control pipe;
• flowing gas into a gas manifold;
• preheating the gas by heat transfer from the mounting plate;
• causing the gas to flow through ports in the air control pipe due to the aspirating effect caused by the flowing air through the air control pipe;
• impinging the gas on the diffuser;
• causing turbulence of the air and gas;
• entraining the gas in the air;
• passing the air/gas mixture through the nozzle formed by the diffuser and air control pipe;
• causing greater turbulence in the air/gas mixture;
• causing the mixture to leave the nozzle in a fan shaped pattern;
• and
• burning the air/gas mixture at a flame temperature of 3500.degree. F.

A combustion system for burning air and gas thereby creating a flue gas and heating a work piece comprising:

• a single air manifold for receiving the air;
• a plurality of gas manifolds for receiving the gas, said gas manifolds being disposed within said single air manifold;
• aspirating means disposed in each gas manifold for uniting the air in said air manifold with the gas in said gas manifold to create an air/gas mixture;
• means for creating a turbulent flow of the air/gas mixture to cause additional mixing of the air and gas and for restricting the volumetric flow of the air/gas mixture;
• said aspirating means being juxtaposed to said last mentioned means;
• a combustion chamber into which the work piece projects;
• and means for preheating the air and gas inside said air manifold and said gas manifolds.