Centrifugal pump of front-mounted cyclone type gas-liquid separator

Abstract

The invention provides a centrifugal pump of a front-mounted cyclone type gas-liquid separator. The centrifugal pump comprises a cyclone cylinder, a feeding pipe, an exhaust pipe and a centrifugal pump body, wherein the cyclone cylinder comprises a cylinder wall enclosed into a cylindrical shape and an end cover with a closed end; the other end of the cyclone cylinder is open; the feeding pipe is tangentially connected with the cylinder wall, close to the end cover, of the cyclone cylinder; the exhaust pipe is arranged on the end cover of the cyclone cylinder; the centrifugal pump body comprises a volute with an axial inlet and a tangential outlet, an impeller arranged in the volute and a driving shaft of the impeller; the axial inlet is connected with the open end of the cyclone cylinder. According to the centrifugal pump provided by the invention, gas-liquid cyclone separation is combined with the centrifugal pump, so that two functions of gas-liquid separation and fluid delivery are integrally realized; gas is separated out before entering into an impeller area, so the blockage of a pump inlet is not easily caused, the gas is not easily taken away by the impeller, and the degassing capability is higher; a low-pressure area is formed at the center of the cyclone cylinder, so that the separation of the gas dissolved in liquid is facilitated, and further the gas-liquid separating effect is improved.

Description

technical field [0001] The invention relates to the technical field of gas-liquid separation, in particular to a centrifugal pump with a pre-swirl type gas-liquid separator. Background technique [0002] In the food industry, during the process of squeezing and stirring fruit juice drinks, more air will be mixed, including free air bubbles and dissolved gases in the liquid. In production, it is often necessary to remove these gases in the liquid to prevent the oxidation of the juice and prolong the storage period. [0003] In recent years, scholars at home and abroad have conducted extensive research on gas-liquid separation operations, but most of them focus on the field of oil-gas separation. There are few studies on the mixed fluid of water and air, especially for the air dissolved in water, which is difficult to separate. In the process of oil and gas separation, the column type gas-liquid cyclone separator has a wide range of applications. The cyclone separator realize...

AI Technical Summary

Problems solved by technology

[0006] The above two kinds of gas-liquid separation use the centrifugal force generated by high-speed rotation to separate the gas in the raw material liquid from the liquid. Although it can effectively separate the free gas in the liquid, it is difficult to separate the dissolved gas in the liquid, and a separate fluid delivery is required. The device is connected to the liquid outlet, which is more complicated to use

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