[미국특허]
Systems and methods for selectively producing steam from solar collectors and heaters
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F24J-002/46
F24D-011/00
F01K-001/00
F22B-001/00
F22B-001/18
F24J-002/40
출원번호
US-0148647
(2014-01-06)
등록번호
US-9874359
(2018-01-23)
발명자
/ 주소
O'Donnell, John Setel
von Behrens, Peter Emery
Nady, Andras
출원인 / 주소
GlassPoint Solar, Inc.
대리인 / 주소
Perkins Coie LLP
인용정보
피인용 횟수 :
0인용 특허 :
89
초록▼
Systems and methods for selectively producing steam from solar collectors and heaters are disclosed. A method in accordance with a particular embodiment includes directing a flow of water to a solar collector, directing the flow of water to a gas-fired heater, and, as a result of heating the flow of
Systems and methods for selectively producing steam from solar collectors and heaters are disclosed. A method in accordance with a particular embodiment includes directing a flow of water to a solar collector, directing the flow of water to a gas-fired heater, and, as a result of heating the flow of water at the solar collector and the gas-fired heater, forming steam from the flow of water. The method further includes changing a sequence by which at least a portion of the flow passes through the solar collector and the gas-fired heater.
대표청구항▼
1. A method for heating water to steam, comprising: directing at least one portion of a flow of water through a solar collector and then through a fuel-fired heater in a first sequence;directing a different portion of the flow of water through the fuel-fired heater and then through the solar collect
1. A method for heating water to steam, comprising: directing at least one portion of a flow of water through a solar collector and then through a fuel-fired heater in a first sequence;directing a different portion of the flow of water through the fuel-fired heater and then through the solar collector in a second sequence to further heat the different portion of the flow of water; anddirecting steam formed from the flow of water to an oilfield injection well. 2. The method of claim 1 wherein directing the flow of water through the fuel-fired heater includes directing the flow of water through only a single fuel-fired heater. 3. A steam production system, comprising: a water source;a water inlet coupled to the water source to receive water from the water source;a solar collector that includes a collector inlet, a collector outlet, and a plurality of solar concentrators positioned to heat water passing from the collector inlet to the collector outlet;a heater that includes a heater outlet, a fuel-fired burner, a burner exhaust, a first heater portion positioned in thermal communication with exhaust gases passing from the burner to the burner exhaust, and a second heater portion positioned in thermal communication with the exhaust gases passing from the burner to the burner exhaust, with the first portion positioned downstream of the second portion;a first valve positioned between the water inlet, the first heater portion and the collector inlet;a second valve positioned between the first valve, the first heater portion and the collector inlet;a third valve positioned between the first heater portion and the second heater portion;a fourth valve positioned between the collector outlet and the heater outlet; anda controller programmed with instructions that, when executed, direct the system to operate in each of: a first mode with the first, second and fourth valves open and the third valve closed to direct water through the first and second heater portions and bypass the solar collector;a second mode with the first and third valves open and the second and fourth valves closed to direct a first portion of water through the first heater portion, direct a second portion of water through the solar collector, and direct both the first and second portions of water through the second heater portion;a third mode with the first, third and fourth valves closed and the second valve open to direct water through the first heater portion, then the solar collector, and then the second heater portion; anda fourth mode with the first and third valves closed and the second and fourth valves open to direct a flow of water through the first heater portion and then the solar collector, direct a third portion of water exiting the solar collector through the second heater portion, and direct a fourth portion of water exiting the solar collector to bypass the second heater portion. 4. The method of claim 1 wherein in the first sequence, the at least one portion of water is directed through a second portion of the fuel-fired heater, and in the second sequence, the different portion of water is directed through a first portion of the fuel-fired heater. 5. The method of claim 1, further comprising changing between the first and second sequences in response to time of day. 6. The method of claim 1 wherein directing the at least one portion of the flow includes directing the at least one portion of the flow in the first sequence during early morning. 7. The method of claim 1 wherein directing the different portion of the flow includes directing the different portion of the flow in the second sequence during early morning. 8. A controller for use with an enhanced oil recovery system, comprising: a computer-readable medium programmed with instructions that, when executed: direct at least one portion of a flow of water through a solar collector and then through a fuel-fired heater in a first sequence;direct a different portion of the flow of water through the fuel-fired heater and then through the solar collector in a second sequence to further heat the different portion of the flow of water; anddirect steam formed from the flow of water to an oilfield injection well. 9. The controller of claim 8 wherein in the first sequence, the instructions direct the at least one portion of water through a second portion of the fuel-fired heater, and in the second sequence, the instructions direct the different portion of water through a first portion of the fuel-fired heater. 10. The controller of claim 8 wherein the computer-readable medium is programmed with instructions that, when executed, change between the first and second sequences in response to time of day. 11. The controller of claim 8 wherein the instructions direct the at least one portion of the flow in the first sequence during early morning. 12. The controller of claim 8 wherein the instructions direct the different portion of the flow in the second sequence during early morning. 13. A controller for use with an enhanced oil recovery system, comprising: a computer-readable medium programmed with instructions that, when executed: direct at least one portion of a flow of water through a first heater portion and then through a solar collector in a first sequence;direct a different portion of the flow of water through the solar heater and then through a second heater portion in a second sequence to further heat the difference portion of the flow of water; anddirect steam formed from the flow of water to an oilfield injection well. 14. The controller of claim 13 wherein the computer-readable medium is programmed with instructions that, when executed, direct the at least one portion of the flow of water through the first heater portion with the first heater portion at a first temperature, and direct the different portion of the flow of water through the second heater portion with the second heater portion at a second temperature higher than the first temperature. 15. The controller of claim 13 wherein the computer-readable medium is programmed with instructions that, when executed, change between the first and second sequences in response to time of day. 16. The controller of claim 13 wherein the computer-readable medium is programmed with instructions that, when executed, direct the at least one portion of the flow in the first sequence during early morning. 17. The controller of claim 13 wherein the computer-readable medium is programmed with instructions that, when executed, direct the different portion of the flow in the second sequence during early morning.
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