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新型氣體處理技術(shù)促進(jìn)分離效率(英)

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摘要:簡(jiǎn)介:荷蘭一家名為T(mén)wister BV的超聲波氣體處理技術(shù)公司,最近發(fā)布一款新產(chǎn)品。該產(chǎn)品為一新型的氣體處理設(shè)備,能夠促進(jìn)兩相流體的分離,并且能夠強(qiáng)化下游分離器的分離效率。Twister SWIRL閥門(mén)能夠再不關(guān)停流體的情況下進(jìn)行故障檢修,...
簡(jiǎn)介:荷蘭一家名為T(mén)wister BV的超聲波氣體處理技術(shù)公司,最近發(fā)布一款新產(chǎn)品。該產(chǎn)品為一新型的氣體處理設(shè)備,能夠促進(jìn)兩相流體的分離,并且能夠強(qiáng)化下游分離器的分離效率。Twister SWIRL閥門(mén)能夠再不關(guān)停流體的情況下進(jìn)行故障檢修,減少化學(xué)劑的損耗,保證高效采油率。


The Netherlands-based Twister BV company recently unveiled a new gas-processing product which promises improved separation of two-phase flow and greater separation efficiency of downstream separators. The Twister SWIRL valve is designed to effectively debottleneck flow problems in existing separator trains while also minimizing liquid carry-over and/or gas carry under, reducing chemical losses, and enabling significantly higher liquid recovery.

The design of many valves currently used in the industry brings about an intense mixing of the gas and liquid phases during the throttling process, which can diminish the efficiency of separators downstream of the choke. The SWIRL valve, by contrast, is a modified choke valve designed to minimize the mixing of gas and liquid phases and enable agglomeration of the dispersion present after pressure let down. The valve uses the available free pressure to create a strong rotational motion in the fluids, resulting in an immediate separation of the formed phases, according to Twister BV.


In conventional valves, flow is throttled over a perforated cylinder, or cage (L). These perforations normally have a radial orientation. The SWIRL valve's modified cage forces the flow into a swirling motion (R).
The rotational motion is initiated by forcing the choking flow through tangential slots in the valve’s trim, which causes small droplets to concentrate along the pipe wall’s perimeter. The ability of the valve to create a regular velocity pattern with less interfacial shear helps ensure that these smaller droplets coalesce into larger drops. The company states that the mean diameter of droplets created through the SWIRL valve is five times larger than that from conventional valves, which improves the efficiency of downstream separators, whose operation is dependent on droplets being larger than a given cut-off diameter.

The company states that the SWIRL principle can be applied to any valve which incorporates axis-symmetrical flow paths such as those developed in cage-piston type valves. Applicable production scenarios for these valves include:

Joule Thomson (JT) expansion of gas flows
Flashing oil/condensate flows in stabilization processes
Oil/water separation
When installed in existing facilities, the new valve technology reportedly offers improved hydrocarbon dew-pointing performance of existing JT-Low Temperature Separator processes, less liquid carry-over and gas carry under, and an overall higher liquid recovery with less loss of chemicals.

Additional details are available on the Twister BV website.

關(guān)鍵字: 氣體處理技 分離效率 
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