Systems and methods for producing a product gas are provided. In one embodiment, a system includes at least one separation bed to separate adsorbable components from a gas source, a valving means to selectively direct gas from the gas source to the at least one separation bed, at least one sensing d
Systems and methods for producing a product gas are provided. In one embodiment, a system includes at least one separation bed to separate adsorbable components from a gas source, a valving means to selectively direct gas from the gas source to the at least one separation bed, at least one sensing device associated with the at least one separation bed to sense the progress of an adsorption zone within the separation bed, and a controller. The controller includes logic to read the output of the at least one sensing device and control the gas separation process based on the progress of the adsorption zone.
대표청구항▼
1. A system for producing a product gas, comprising: a first separation bed to separate adsorbable components from a gas source;a valving means connected to the first separation bed to selectively direct gas from the gas source to the first separation bed;at least one sensing device associated with
1. A system for producing a product gas, comprising: a first separation bed to separate adsorbable components from a gas source;a valving means connected to the first separation bed to selectively direct gas from the gas source to the first separation bed;at least one sensing device associated with the first separation bed to sense the progress of an adsorption zone within the first separation bed and provide an output;a controller, comprising logic to: read the output of the at least one sensing device; andcontrol the valving means based at least in part on stored control parameters, wherein the stored control parameters are based on the output of the at least one sensing device. 2. The system of claim 1, wherein the controller further comprises logic to: determine when the adsorption zone reaches or nearly reaches an outlet of the first separation bed based at least in part on the output of the at least one sensing device; andwherein controlling the valving means includes selectively directing gas to the first separation bed based on when the adsorption zone reaches or nearly reaches the outlet of the first separation bed. 3. The system of claim 1, further comprising: a second separation bed;an equalization device connected to the first and second separation beds to selectively direct gas from one separation bed to the other separation bed;wherein the controller further comprises logic to: control the equalization device to selectively direct gas from one separation bed to the other separation bed based at least in part on the output of the at least one sensing device. 4. The system of claim 3, wherein the controller further comprises logic to: determine when the adsorption zone reaches or nearly reaches an outlet of the first and second separation beds based at least in part on the output of the at least one sensing device; andwherein controlling the equalization device includes selectively directing gas to the first and second separation beds when the adsorption zone reaches or nearly reaches the outlet of the first and second separation beds. 5. The system of claim 3, wherein the controller further comprises logic to: coordinate the actuation of the valving means and the equalization device to produce the product gas via alternating fill and purge cycles. 6. The system of claim 1, wherein the controller further comprises logic to: determine an average time for the adsorption zone to reach or nearly reach an outlet of the first separation bed based at least in part on the output of the at least one sensing device; andwherein controlling the valving means is based at least in part on the average time for the adsorption zone to reach or nearly reach the outlet of the first separation bed. 7. The system of claim 6, wherein the controller further comprises logic to: calculate a percentage of the average time for the adsorption zone to reach or nearly reach the outlet of the first separation bed; andwherein controlling the valving means is based at least in part on the percentage of the average time for the adsorption zone to reach or nearly reach the outlet of the first separation bed. 8. The system of claim 1, further comprising: a pressure sensor to sense the pressure of the produced product gas and to provide an output; andwherein controlling the valving means is based at least in part on the output of the pressure sensor. 9. The system of claim 1, further comprising: a gas concentration sensor to sense the concentration of a gas component of the produced product gas and to provide an output; andwherein controlling the valving means is based at least in part on the output of the concentration sensor. 10. The system of claim 1, wherein the at least one sensing device associated with the first separation bed comprises at least one of a gas concentration sensor, a temperature sensor, a flow rate sensor, and a pressure sensor. 11. The system of claim 1, wherein the at least one sensing device associated with the first separation bed further comprises: a second sensing device to sense the progress of desorption within the first separation bed and provide a second output; andwherein controlling the valving means is further based at least in part on the second output of the second sensing device. 12. The system of claim 1, wherein the at least one sensing device associated with the first separation bed senses a characteristic of the first separation bed from inside the first separation bed. 13. The system of claim 1, wherein the at least one sensing device associated with the first separation bed senses a characteristic of the first separation bed from outside the first separation bed. 14. A system for producing a product gas, comprising: at least one separation bed assembly to separate adsorbable components from a gas source;a valving means connected to the at least one separation bed assembly to selectively direct gas from the gas source to the at least one separation bed assembly;at least one sensing device associated with the at least one separation bed assembly to sense the progress of an adsorption zone within the at least one separation bed assembly and provide an output;a controller, comprising logic to: read a first set of operational parameters;read the output of the at least one sensing device;adjust the set of operation parameters based on the at least one sensing device output; andcontrol the valving means based on the adjusted set of operational parameters. 15. The system of claim 14, wherein the controller further comprises logic to: determine when the adsorption zone reaches or nearly reaches an outlet of the at least one separation bed assembly based at least in part on the output of the at least one sensing device; andwherein adjusting the set of operation parameters is based at least in part on when the adsorption zone reaches or nearly reaches the outlet of the at least one separation bed assembly. 16. The system of claim 14, wherein the controller further comprises logic to: determine an average time for the adsorption zone to reach or nearly reach an outlet of the at least one separation bed assembly based at least in part on the output of the at least one sensing device; andwherein adjusting the set of operation parameters is based at least in part on the average time for the adsorption zone to reach or nearly reach the outlet of the first and second separation bed assemblies. 17. The system of claim 16, wherein the controller further comprises logic to: calculate a percentage of the average time for the adsorption zone to reach or nearly reach the outlet of the at least one separation bed assembly; andwherein adjusting the set of operation parameters is based at least in part on the percentage of the average time for the adsorption zone to reach or nearly reach the outlet of the at least one separation bed assembly. 18. The system of claim 14, wherein the at least one separation bed assembly comprises first and second separation bed assemblies, and wherein the at least one sensing device is associated with the first and second separation bed assemblies, and wherein the valving means is connected to the first and second separation bed assemblies to selectively direct gas from the gas source to the first and second separation bed assemblies. 19. The system of claim 18, further comprising: an equalization device connected to the first and second separation bed assemblies to selectively direct gas from one separation bed assembly to the other separation bed assembly; andwherein the controller further comprises logic to: control the equalization device based on the adjusted set of operational parameters. 20. The system of claim 18, wherein the at least one sensing device associated with the first and second separation bed assemblies comprises: a first sensing device to sense the progress of an adsorption zone within the first separation bed assembly and provide a first output; anda second sensing device to sense the progress of a desorption within the first separation bed assembly and provide a second output; andwherein adjusting the set of operation parameters is based at least in part on the first output of the first sensing device and the second output of the second sensing device. 21. A system for producing a product gas, comprising: means for separating adsorbable components from a gas source;means for selectively directing gas from the gas source to the means for separating adsorbable components;means for sensing the progress of an adsorption zone within the means for separating adsorbable components and for providing an output;means for controlling, wherein the means for controlling comprises logic to: read the output of the means for sensing the progress of an adsorption zone within the means for separating adsorbable components; andcontrol the means for selectively directing gas from the gas source to the means for separating adsorbable components based at least in part on stored control parameters, wherein the stored control parameters are based on the output of the means for sensing the progress of an adsorption zone within the means for separating adsorbable components. 22. A system for producing a product gas, comprising: means for separating adsorbable components from a gas source;means for selectively directing gas from the gas source to the means for separating adsorbable components;means for sensing the progress of an adsorption zone within the means for separating adsorbable components and for providing an output;means for controlling, wherein the means for controlling comprises logic to: read a first set of operational parameters;read the output of the means for sensing the progress of an adsorption zone within the means for separating adsorbable components;adjust the set of operation parameters based on the output of the means for sensing the progress of an adsorption zone within the means for separating adsorbable components; andcontrol the means for selectively directing gas from the gas source to the means for separating adsorbable components based on the adjusted set of operational parameters. 23. A method of producing a product gas, comprising: reading a first set of operating parameters;measuring the progress of an adsorption zone within at least one separation bed;changing the operating parameters based on the measured progress of the adsorption zone; andcontrolling a valving means based on the changed operating parameters, wherein the valving means selectively directs gas from a gas source to the at least one separation bed.
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