Systems and methods for extending the turndown ratio of gas-fired burner systems
AssigneeRheem Manufacturing Company
InventorsAmin Monfared, Danilo Aguilar, Jorge Miguel Gamboa Revilla, Lee Chambers, Shaun Besse
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Abstract
The disclosed technology includes a device for extending the turndown ratio of a gas-fired burner system. The device can comprise a variable area device configured reduce the amount of fuel and air passed to the burner during low output conditions by adjusting the cross-sectional area of the passage between the blower and the burner. The variable area device can be controlled by an actuator that adjusts the position of the variable area device. The actuator can be manually controlled, mechanically controlled, or electronically controlled.
Claims10
A gas-fired burner system, the system comprising:
- a blower;
- a burner;
- a variable area device configured to adjust a cross-sectional area of a passage fluidly connecting the blower to the burner;
- an actuator;
- and
- a controller comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, direct the controller to:
- receive output data of the gas-fired burner system;
- and
- output a control signal to adjust a cross-sectional area of the variable area device in response to determining that the output data indicates that the gas-fired burner system has reduced its output,
- wherein the variable area device comprises a mechanical iris and the mechanical iris comprises:
- a first ring;
- a second ring;
- and
- a tubular flexible material between and connected to the first and second rings, wherein the flexible material is configured to twist open or closed based on a rotation of the second ring,
- wherein the actuator is configured to receive the control signal from the controller and adjust the rotation of the second ring.
A gas-fired burner system, the system comprising:
- a blower;
- a burner;
- a variable area device configured to adjust a cross-sectional area of a passage fluidly connecting the blower to the burner;
- an actuator;
- and
- a controller comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, direct the controller to:
- receive output data of the gas-fired burner system;
- and
- output a control signal to adjust a cross-sectional area of the variable area device in response to the output data,
- wherein the variable area device comprises:
- a first ring;
- a second ring;
- and
- a tubular flexible material between and connected to the first and second rings, wherein the flexible material is configured to twist open or closed based on a rotation of the second ring, and
- wherein the actuator is configured to receive the control signal from the controller and adjust the rotation of the second ring.
Dependencies are inferred from the claim text.