Nov 21, 2021 07:21
2 yrs ago
15 viewers *
English term
Helium "Pop" Method
English to Chinese
Tech/Engineering
Petroleum Eng/Sci
The purpose of this publication is to recommend procedures for obtaining samples from flowing natural gas streams that represent the composition of the vapor phase portion of the system being analyzed.
These representative samples are subsequently transported to a laboratory and analyzed for compositions and/or trace contaminants or analyzed onsite by portable or on-line chromatographs.
This publication includes detailed sampling procedures for each of 8 test methods:
1.)Purging - Fill & Empty Method
2.)Purging - Controlled Rate Method
3.)Evacuated Container Method
4.)Reduced Pressure Method
5.)Helium "Pop" Method
6.)Glycol or Water Displacement Method
7.)Floating Piston Cylinder Method
8.)Portable and On-Line Gas Chromatographs
These representative samples are subsequently transported to a laboratory and analyzed for compositions and/or trace contaminants or analyzed onsite by portable or on-line chromatographs.
This publication includes detailed sampling procedures for each of 8 test methods:
1.)Purging - Fill & Empty Method
2.)Purging - Controlled Rate Method
3.)Evacuated Container Method
4.)Reduced Pressure Method
5.)Helium "Pop" Method
6.)Glycol or Water Displacement Method
7.)Floating Piston Cylinder Method
8.)Portable and On-Line Gas Chromatographs
Proposed translations
(Chinese)
| 4 | 充氦法 |
Kiet Bach
|
| 4 | 氦罐顶气（样品采集）方法 |
Frank Feng
|
Proposed translations
13 hrs
Selected
充氦法
我猜这里的 pop 是指 helium 经过活塞进入真空罐时的 pop 一声。
http://oilprocessing.net/data/documents/U1-5.png
Helium Pop Method — The helium pop method uses the reduced pressure technique that requires evacuating the cylinder to absolute pressure, 1 mm Hg or less. This method is used when the gas being sampled is at or above the known hydrocarbon dew point. The cylinder is connected to a helium source, and the auxiliary valve is loosened and slowly purged with helium. The valve is then retightened and the cylinder is filled with helium to a pressure of approximately 5 PSI. This method is used in applications where helium is not a component of interest and is also being used as the carrier gas during analysis. An advantage to this method is that it eliminates any concerns related to air purging as the helium charge keeps the cylinder air free prior to sampling. This method can be difficult to perform however and the sample will be helium diluted.
https://asgmt.com/wp-content/uploads/2016/02/100_.pdf
http://oilprocessing.net/data/documents/U1-5.png
Helium Pop Method — The helium pop method uses the reduced pressure technique that requires evacuating the cylinder to absolute pressure, 1 mm Hg or less. This method is used when the gas being sampled is at or above the known hydrocarbon dew point. The cylinder is connected to a helium source, and the auxiliary valve is loosened and slowly purged with helium. The valve is then retightened and the cylinder is filled with helium to a pressure of approximately 5 PSI. This method is used in applications where helium is not a component of interest and is also being used as the carrier gas during analysis. An advantage to this method is that it eliminates any concerns related to air purging as the helium charge keeps the cylinder air free prior to sampling. This method can be difficult to perform however and the sample will be helium diluted.
https://asgmt.com/wp-content/uploads/2016/02/100_.pdf
4 KudoZ points awarded for this answer.
1 hr
Frank Feng
China
China
Native in Chinese
China
Financial, Medical, Game, IT Translation
Native in: Chinese (Variants: Mandarin, Traditional, Simplified) , Mandarin Chinese 
Works in: English to Chinese, Chinese to English, English to Mandarin Chinese
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