IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0244869
(2002-09-17)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
▼
A combination purging system and sampling system is provided for sampling gas from a pipeline. A flow path 40 provides fluid communication between a sample bottle 45 and the pipeline. The sample bottle 45 is initially filled with an inert gas for purging air from the flow path 40 and venting to atmo
A combination purging system and sampling system is provided for sampling gas from a pipeline. A flow path 40 provides fluid communication between a sample bottle 45 and the pipeline. The sample bottle 45 is initially filled with an inert gas for purging air from the flow path 40 and venting to atmosphere. A supply valve 24 controls flow between the pipeline and the flow path 40, and a bleed valve 35 controls venting from the flow path 40 to atmosphere. The relationship and positioning between the valves and the flow path prevents condensation from entering the sampled gas while purging and sampling.
대표청구항
▼
1. A purging system used in conjunction with a sampling system along a gas pipeline, the sampling system including a sample bottle for storing samples of gas from the pipeline, the purging system comprising:a purge block defining a flow path for fluid communication between the pipeline, the sample b
1. A purging system used in conjunction with a sampling system along a gas pipeline, the sampling system including a sample bottle for storing samples of gas from the pipeline, the purging system comprising:a purge block defining a flow path for fluid communication between the pipeline, the sample bottle, and atmosphere, the purge block being a unitarian homogeneous material block; a supply valve supported on the purge block and positioned along the flow path for controlling flow between the gas pipeline, the sample bottle and a bleed valve; a bottle valve for controlling flow between the purge block and the sample bottle; the bleed valve supported on the purge block and positioned along the flow path for venting to atmosphere; the bleed valve and a bleed portion of the flow path are positioned below the supply valve, such that fluid condensation about the supply valve flows through the bleed portion toward the bleed valve; and; the sample bottle containing a selected inert gas for purging air from the purge block and subsequently receiving the samples of gas from the pipeline. 2. A purging system as defined in claim 1, wherein a supply portion of the flow path extends from a supply inlet port in the purge block to the supply valve, a bottle portion of the flow path separate from the supply portion extends from a bottle inlet port in the purge block to the supply valve, and the bleed portion of the flow path separate from the supply portion and the bottle portion extends between the supply valve to the bleed valve.3. A purging system as defined in claim 2, wherein the bottle portion is in fluid communication with the bleed valve when the supply valve is closed.4. A purging system as defined in claim 3, further comprising:a bypass chamber about a valve seat for the supply valve providing fluid communication between the bottle portion and the bleed valve with the supply valve closed. 5. A purging system as defined in claim 4, wherein the bypass chamber is an annular chamber surrounding the valve seat for the supply valve.6. A purging system as defined in claim 1, wherein a bottle portion of the flow path passes above the supply valve, such that fluid condensation about the supply valve cannot pass to the sample bottle.7. A purging system as defined in claim 1, wherein the inert gas is selected from the group consisting of helium and argon.8. A purging system as defined in claim 1, further comprising:a pressure sensor along the flow path for sensing the pressure in the flow path. 9. A purging system as defined in claim 2, wherein each of the supply valve and the bleed valve extend from a face of the purge block opposite the supply inlet port, for passing gas from the pipeline into the purge block.10. A method of purging air from a sampling system prior to sampling gas from a gas pipeline, the sampling system including a sample bottle with a bottle valve the sample bottle for storing gas from the pipeline, the method comprising:providing a flow path for fluid communication between the pipeline, the sample bottle, and atmosphere; positioning a supply valve along the flow path for controlling flow between the gas pipeline, the sample bottle and a bleed valve; positioning the bleed valve along the flow path for venting gas from the flow path; positioning the bleed valve and a bleed portion of the flow path below the supply valve, such that fluid condensation about the supply valve flows through the bleed portion toward the bleed valve; filling the sample bottle with a selected inert gas; attaching the sample bottle along the flow path; closing the supply valve, opening the bottle valve, and opening the bleed valve to purge air from the sampling system; and closing the bleed valve and opening the supply valve to pass sampling gas from the pipeline to the sample bottle. 11. A method as defined in claim 10, further comprising:providing a bypass chamber for fluid communication between the bottle valve and bleed valve regardless of the position of the supply valve. 12. A method as defined in claim 10, further comprising:closing the bottle valve, some inert gas remaining in the sample bottle. 13. A method as defined in claim 10, further comprising:passing a bottle portion of the flow path above the supply valve, such that fluid condensation about the supply valve cannot pass to the sample bottle. 14. A method as defined in claim 10, further comprising:positioning the bleed valve and a bleed portion of the flow path below the supply valve, such that fluid condensation about the supply valve flows through the bleed portion toward the bleed valve. 15. A method as defined in claim 14, further comprising:after filling the sample bottle and before beginning a new filling cycle, reducing the pressure in a supply portion of the flow path by opening the supply valve, then opening the bleed valve, such that any condensation resulting from a rapid reduction in pressure in the flow path occurs about the bleed valve, whereupon the condensation will flow through the bleed valve to atmosphere.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.