Divergent cyclone type supersonic spraying pipe

Abstract

The invention provides a divergent cyclone type supersonic spraying pipe. The invention adopts the technical scheme that the divergent cyclone type supersonic spraying pipe comprises a spraying pipe inlet, a spraying-pipe convergent section, a spraying-pipe throat part, a spraying-pipe divergent section, a spraying-pipe outlet, a cyclone device positioned at the spraying-pipe divergent section and the like, wherein natural gas containing water steam and heavy-hydrocarbon components enters the spraying-pipe convergent section to expand and be cooled through the spraying-pipe inlet, expands to supersonic speed through the spraying-pipe throat pipe, water steam and heavy-hydrocarbon components are condensed into droplets, and the droplets pass through the cyclone device at the spraying-pipe divergent section and realizes high-speed cyclone under the supersonic condition; and the droplets are thrown to the wall surface of the spraying pipe by large centrifugal force generated by cyclone, and are separated or absorbed in the following procedure so as to realize gas-liquid separation. The divergent cyclone type supersonic spraying pipe provided by the invention has the beneficial effects that the structure is simple, the processing is convenient, condensation and cyclone separation of water and heavy hydrocarbons are easily realized, simultaneously the shock wave effect and the secondary evaporation phenomenon of condensed droplets are avoided, and the divergent cyclone type supersonic spraying pipe can replace the traditional supersonic separator to realize complex processes such as dewatering and heavy-hydrocarbon removal.

Description

technical field [0001] The invention relates to a gradually expanding and swirling supersonic nozzle, which is mainly used for removing water and heavy hydrocarbon components in natural gas, and belongs to the technical field of natural gas processing and treatment. Background technique [0002] With the rapid development of social economy, the demand for natural gas is increasing day by day. Before natural gas is exported and used, dehydration and heavy hydrocarbon removal processes are required. Supersonic cyclone separation technology is an emerging natural gas processing technology this year. It is widely used in the fields of natural gas dehydration and heavy hydrocarbon removal. Development and utilization are of great significance. [0003] Abroad, the Dutch Shell Petroleum Company has developed the research on natural gas supersonic separation technology, including basic theoretical research, numerical simulation, laboratory research and field test research. Repres...

AI Technical Summary

Problems solved by technology

[0005] The supersonic cyclone separator has a good technical application in natural gas dehydration and heavy hydrocarbon removal, but it also has certain defects, such as a relatively complex structure and difficulty in processing. After condensation, the water and heavy components are prone to secondary evaporation, which significantly reduces the removal efficiency of water and heavy components.

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