A full cyclone supersonic separation device

Abstract

The invention discloses a full-swirl supersonic separation device, which comprises a shell and a central swirl component. The casing includes the straight-flow steady flow section, the Laval nozzle converging section and the Laval nozzle expansion section. The central swirl component includes a front central swirl component and a rear central swirl component; the front central swirl component is located in the straight flow stabilization section and the Laval nozzle tapering section; the rear central swirl component is located in the Laval nozzle expansion section. When the gas enters the straight-line steady flow section and the tapering section of the Laval nozzle, the gas flow expands in a swirling state, and reaches supersonic speed after reaching the expansion section of the Laval nozzle, the temperature and pressure further decrease, and the gas begins to condense. The process of streamside condensation can effectively reduce the influence of droplet re-evaporation; in addition, a swirl component is also installed in the expansion section of the Laval nozzle, and its swirl capacity is strong and durable, which ensures the separation effect and separation efficiency of the device.

Description

technical field [0001] The invention belongs to the technical field of low-temperature condensation and cyclone separation, and in particular relates to a full-swirl supersonic separation device, which is especially suitable for low-temperature condensation and cyclone separation of impurity components such as water vapor, acid gas, and heavy hydrocarbons in natural gas. Background technique [0002] In the field of natural gas exploitation, the currently extracted natural gas is often saturated with water vapor and contains some heavy hydrocarbon components. In order to meet the requirements of natural gas export and use, water vapor, acid gas and heavy hydrocarbon components must be separated. [0003] Traditional natural gas separation processes include cooling method, chemical absorption method, adsorption method and membrane separation method. However, these separation processes have various disadvantages in the natural gas separation process, and it is urgent to propos...

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Problems solved by technology

[0013] (1) Difficult to process; (2) The constriction section and the diffuser section of the supersonic cyclone separation device are fixedly connected, so it is impossible to realize the free collocation of different types of constriction sections and diffuser sections, which makes the device's adaptability to working conditions wider. narrow

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