Gradually shrinking and rotational-flow type supersonic-velocity spray tube
A technology of supersonic speed and nozzle, applied in the direction of gas fuel, petroleum industry, fuel, etc., can solve the problems of processing difficulty and complex structure, and achieve the effect of convenient processing and simple structure
Inactive Publication Date: 2017-11-17
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology
[0005] The supersonic cyclone separator has a good technical application in natural gas dehydration and heavy hydrocarbon removal, but there are also certain defects. One of the problems is that the structure is relatively complex and processing is difficult.
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[0021] Now in conjunction with accompanying drawing, the present invention is further described:
[0022] like Figure 1-2 , a kind of tapering swirl type supersonic nozzle that the present invention proposes, comprises nozzle inlet (1), swirler (2), nozzle tapering section (3), nozzle throat (4), nozzle Expanding section (5), nozzle outlet (6), etc.
[0023] The natural gas containing water vapor and heavy hydrocarbon components enters the nozzle converging section (3) through the nozzle inlet (1) to accelerate and depressurize. After the gas expands, the temperature drops sharply, and the water vapor and heavy hydrocarbon components in it condense into liquid After passing through the swirling effect of the cyclone (2), a high-speed swirling flow is formed. The gas reaches the speed of sound after passing through the throat of the nozzle (4), and then enters the expanding section of the nozzle (5) to reach supersonic speed. The huge centrifugal force throws the liquid drop...
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The invention discloses a gradually shrinking and rotational-flow type supersonic-velocity spray tube. According to the technical scheme adopted by the invention, the gradually shrinking and rotational-flow type supersonic-velocity spray tube mainly comprises a spray tube inlet, a spray tube reducing section, a spray tube throat part, a spray tube increasing section, a spray tube outlet, a hydrocyclone positioned on the spray tube reducing section and the like. Natural gas containing water vapor and heavy hydrocarbon components enters the spray tube reducing section through the supersonic-velocity spray tube inlet, is expanded, gradually speeds up, realizes rotational flow under a subsonic velocity condition, and is expanded to supersonic velocity after passing through the throat part; under a low-temperature low-pressure environment in the spray tube, vapor and heavy hydrocarbon components are condensed into liquid drops, and the liquid drops are thrown to the wall surface of the supersonic-velocity spray tube as a result of great centrifugal force under driving of rotational-flow gas, are collected in follow-up processes, so that gas-liquid separation is realized. The reducing rotational-flow type supersonic-velocity spray tube has the beneficial effects that: the structure is simple, and liquid drop condensation and rotational-flow purpose can be simultaneously realized; compared with a supersonic-velocity rotational-flow separator with a complex structure, the reducing rotational-flow type supersonic-velocity spray tube is very convenient to process, and can replace a conventional supersonic-velocity separator to realize complex processes such as dehydration and heavy hydrocarbon removal of natural gas.
Description
technical field [0001] The invention relates to a tapered swirl type supersonic nozzle, which is mainly used in the removal of water and heavy hydrocarbon components in natural gas, and belongs to the technical field of natural gas processing and treatment. Background technique [0002] my country's natural gas consumption is huge and is in a stage of rapid growth. The research and development of new technologies for natural gas processing is of great significance for reducing the cost of natural gas processing in my country and realizing energy conservation and emission reduction in the field of natural gas processing. [0003] Twister Petroleum Company proposed supersonic separation technology, but limited by the development of gas-liquid two-phase fluid mechanics at that time, the early research work on gas-liquid supersonic cyclone separation technology was based on application and experimental research. Foreign research institutions on this technology mainly include She...
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IPC IPC(8): C10L3/10
CPCC10L3/101C10L3/106C10L2290/34
Inventor 边江蒋文明侯丹阳刘杨杨杰陈明灿杜仕林陈义美
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)