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US 7,905,722 B1Granted
Control of an adjustable secondary air controller for a burner
OwnerRodney T. Heath, Forrest D. Heath +1inventors
InventorsRodney T. Heath, Forrest D. Heath, Gary Heath
Life of this patent
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Abstract
The present invention relates to a system and method for controlling a burner's adjustable secondary air controller. Specifically, the system relates to a control logic for the control of an air supply to a burner such as a natural gas burner used in the production and/or processing of liquid and gaseous petroleum products and in natural gas dehydration systems.
Claims12
A method for controlling a secondary air controller of a heating apparatus comprising:
- providing a pneumatic control circuit, the control circuit pneumatically adjusting the secondary air controller into an open position for a delayed period of time prior to a fuel being provided to a burner of the heating apparatus;
- permitting ignition of the heating apparatus only when a pneumatic start permission relay signal is received;
- and
- pneumatically adjusting a position of the secondary air controller based on a pressure of the fuel supplied to a burner of the heating apparatus and based on an output of a pneumatically adjustable biasing relay pneumatically connected to the secondary air controller, the biasing relay increasing or decreasing a signal pressure to a diaphragm of the secondary air controller.
1 more element
A system for controlling secondary air to a heating apparatus comprising:
- a secondary air controller, said secondary air controller comprising:
- a valve;
- a diaphragm in communication with said valve;
- a thermostat;
- and
- pneumatic control logic, said logic comprising a pneumatic start permission relay and a pneumatic adjustable biasing relay pneumatically connected to said diaphragm of said secondary air controller said biasing relay increasing or decreasing a signal pressure to said diaphragm.
3 more elements
Dependencies are inferred from the claim text.