Sample line management in a fluid analyzer system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-001/44
G01N-033/00
G01N-001/22
출원번호
US-0714618
(2012-12-14)
등록번호
US-9366607
(2016-06-14)
발명자
/ 주소
Li, Yonquan
Glenn, Daniel E.
Johnson, Jr., K. Stephen
Kita, Dieter
출원인 / 주소
Thermo Environmental Instruments Inc.
대리인 / 주소
McCarthy, III, William R.
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
In a first mode, a monitoring system inputs humidified gas through at least a portion of a conduit. At least a portion of the water in the humidified gas adheres to the inner surface of the conduit, inhibiting contaminants in the gas sample from adhering to the inner surface. The water in the humidi
In a first mode, a monitoring system inputs humidified gas through at least a portion of a conduit. At least a portion of the water in the humidified gas adheres to the inner surface of the conduit, inhibiting contaminants in the gas sample from adhering to the inner surface. The water in the humidified gas may also push any contaminants adhered to the surface of the sample line back out the sample line. In a second mode, after previously passing the humidified gas through the conduit, the monitoring system controls a flow of a gas sample including the contaminants through the conduit to a gas analyzer. The one or more layer of water on the inner surface of the conduit prevents or reduces a buildup of undesirable contaminants on an inner surface of a conduit that conveys gas samples.
대표청구항▼
1. A method comprising: receiving a first mode control signal indicating to operate in a first mode;in accordance with the first mode control signal, inputting humidified gas through at least a portion of a conduit to adsorb a layer of water onto an inner surface of the conduit;receiving a second mo
1. A method comprising: receiving a first mode control signal indicating to operate in a first mode;in accordance with the first mode control signal, inputting humidified gas through at least a portion of a conduit to adsorb a layer of water onto an inner surface of the conduit;receiving a second mode control signal indicating to operate in a second mode;in accordance with the second mode control signal, controlling a flow of a gas sample including water soluble contaminants from a source through the conduit to a gas analyzer, wherein the layer of water inhibits the water soluble contaminants from adhering to the inner surface of the conduit; andin response to detecting that a concentration of a particular water soluble contaminant in the gas sample is above a threshold value, toggling between operating in the first mode and the second mode to reduce buildup of the particular water soluble contaminant on the inner surface of the conduit. 2. The method as in claim 1, wherein the source is a smokestack, the method further comprising: performing continuous emissions monitoring of the smokestack. 3. The method as in claim 1, wherein inputting the humidified gas through at least the portion of the conduit includes inputting the humidified gas in a first direction through the conduit; and wherein controlling the flow of the gas sample including the water soluble contaminants from the source through the conduit to the gas analyzer includes controlling the flow of the gas in a second direction through the conduit, the second direction being substantially opposite the first direction. 4. The method as in claim 1, wherein controlling the flow of the gas sample causes at least a portion of the water soluble contaminants in the gas sample to adhere to the inner surface of the conduit; and toggling to the first mode removes the portion of the water soluble contaminants from the inner surface of the conduit via input of the humidified gas. 5. The method as in claim 4 further comprising: controlling the gas analyzer to sample presence of water soluble contaminants in the gas sample while in the second mode. 6. The method as in claim 1 further comprising: heating at least a portion the conduit to a temperature above a boiling point of the gas sample; andcontrolling the humidified gas to include a concentration of water between 0.1% and 95.0%. 7. The method as in claim 1 further comprising: controlling a concentration of water in the humidified gas to be within a range that prevents condensation of the water on the inner surface of the conduit during the first mode. 8. The method as in claim 1 wherein: the concentration of the particular water soluble contaminant in the gas sample is above the threshold concentration value for more than a threshold amount of time. 9. The method as in claim 1 further comprising: in response to receiving the first mode control signal: controlling a first valve at the end of the conduit opposite the source to be in a closed position, the closed position of the first valve preventing a flow of the gas sample from the source to the gas analyzer; andcontrolling a second valve to an open position to facilitate passing of the humidified gas from the humidifier resource though the conduit in the reverse direction to the source. 10. The method as in claim 9 further comprising: in response to receiving the second mode control signal: controlling the first valve to be in an open position, the open position of the first valve causing a flow of the gas sample from the source to the gas analyzer; andcontrolling the second valve to a closed position to prevent the humidified gas from being inputted into the conduit. 11. The method as in claim 1 further comprising: heating the humidified gas prior to inputting the humidified gas through the conduit. 12. The method as in claim 1 wherein: toggling between the first mode and second mode to provides a substantially continuous flow of gases through the conduit either in the forward direction or reverse direction. 13. The method as in claim 1, wherein inputting the humidified gas through at least a portion of the conduit includes causing the humidified gas to flow in a first direction through the conduit, and wherein controlling the flow of the gas sample includes causing the gas sample including the water soluble contaminants to flow in a second direction through the conduit, the second direction opposite the first direction. 14. A system comprising: a conduit; anda controller, the controller configured to: in a first mode, input humidified gas through at least a portion of the conduit to adsorb a layer of water onto an inner surface of the conduit, andin a second mode, control a flow of a gas sample including water soluble contaminants from a source through the conduit to a gas analyzer, wherein the layer of water inhibits the water soluble contaminants from adhering to the inner surface of the conduitwherein the controller toggles between operating in the first mode and the second mode to reduce buildup of a particular water soluble contaminant on the inner surface of the conduit in response to detecting that a concentration of the particular water soluble contaminant in the gas sample is above a threshold value. 15. The system as in claim 14, wherein the humidified gas passes through the conduit in a first direction; and wherein the gas sample passes through the conduit in a second direction, the second direction being opposite the first direction. 16. The system as in claim 14, where the source is a smokestack, the system monitoring continuously monitoring emissions from the smokestack. 17. The system as in claim 14, wherein the controller toggles to the first mode to remove the particular water soluble contaminant from the inner surface of the conduit via input of the humidified gas. 18. The system as in claim 14 further comprising: a humidifier resource that produces the humidified gas to include a concentration of water between 0.1% and 95.0%. 19. The system as in claim 14 further comprising: a humidifier resource configured to control a concentration of water in the humidified gas to be within a range that prevents condensation of the water on the inner surface of the conduit during the first mode. 20. The system as in claim 14 further comprising: a first valve;a second valve; andin the first mode, the controller configured to: control the first valve to be in a closed position, the closed position of the first valve preventing a flow of the gas sample from the source to the gas analyzer; andcontrol the second valve to an open position to facilitate passing of the humidified gas from the humidifier resource though the conduit in the reverse direction to the source. 21. The system as in claim 20 further comprising: in the second mode, the controller configured to: control the first valve to be in an open position, the open position of the first valve causing a flow of the gas sample from the source to the gas analyzer; andcontrol the second valve to a closed position to prevent the humidified gas from being inputted into the conduit. 22. A system comprising: at least one processor device; anda hardware storage resource coupled to the at least one processor device, the hardware storage resource storing instructions that, when executed by the at least one processor device, cause the at least one processor device to perform the operations of: in accordance with a first mode of a monitoring system, inputting humidified gas through at least a portion of a conduit to adsorb a layer of water onto an inner surface of the conduit;in accordance with a second mode of a monitoring system, controlling a flow of the gas sample including the water soluble contaminants from a source through the conduit to a gas analyzer, wherein the layer of water inhibits the water soluble contaminants from adhering to the inner surface of the conduit; andin response to detecting that a concentration of a particular water soluble contaminant in the gas sample is above a threshold value, toggling between operating in the first mode and the second mode to reduce buildup of the particular water soluble contaminant on the inner surface of the conduit. 23. Computer-readable storage hardware having instructions stored thereon, the instructions, when carried out by at least one processing device, causes the at least one processing device to perform operations of: in accordance with a first mode of a monitoring system, inputting humidified gas through at least a portion of a conduit to adsorb one or more layers of water onto an inner surface of the conduit;in accordance with a second mode of a monitoring system, controlling a flow of the gas sample including the water soluble contaminants from a source through the conduit to a gas analyzer, wherein the layer of water inhibits the water soluble contaminants from adhering to the inner surface of the conduit; andin response to detecting that a concentration of a particular water soluble contaminant in the gas sample is above a threshold value, toggling between operating in the first mode and the second mode to reduce buildup of the particular water soluble contaminant on the inner surface of the conduit.
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이 특허에 인용된 특허 (4)
Schofield, Keith, Method and apparatus for mitigating mercury emissions in exhaust gases.
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