Vortex pump with separation net for enhancing self-absorption

Abstract

The invention discloses a vortex pump with a separation net for enhancing self-absorption. The vortex pump comprises a vortex pump body and the separation net. The separation net is arranged in a gas-liquid separation chamber with the set angle A and the set area S. The separation net conducts effective gas-liquid separation on gas and liquid two-phase flow, flowing back to the area near an impeller, in the gas-liquid separation chamber, and meanwhile rectification, deceleration and pressurization are conducted on backflow fluid. The separation net in the vortex pump can enhance gas-liquid separation in the gas-liquid separation chamber, bubble floating is accelerated, descending of bubbles along with downward fluid is relieved, and the exhaust efficiency and the exhaust speed of limited space of the gas-liquid separation chamber are greatly improved; through isolation and separation of bubbles at the upper position in the gas-liquid separation chamber, it is ensured that the gas content of fluid flowing back to a water absorbing chamber along with rotation of the impeller is lower, higher momentum and pressure potential energy are achieved, and the mixing volume rate and the mixing speed for gas in a pipeline at an inlet section of the pump in the water absorbing chamber are improved.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to a vortex pump which utilizes a separation net to enhance self-priming. Background technique [0002] Vortex pump, also known as friction pump and regenerative pump, is a kind of fluid machinery with large quantity and wide range and high energy consumption. It first appeared in the 1920s and was created and promoted by Simon and Hensch. Vane or special vane pumps with small-pitched impellers. The vortex pump has the characteristics of simple structure, strong self-priming ability, and high head, and is widely used in various fields of the national economy, such as household water boosting, air conditioning pumps, etc. When the vortex pump is working, the liquid enters the fluid area between the two blades of the impeller near the inlet from the suction port, and flows back to the flow channel after accelerating with the rotation of the impeller, and transfers the energy to t...

AI Technical Summary

Problems solved by technology

If the assembly gap between the impeller and the tongue is too large, the self-priming ability will be significantly reduced, and if the assembly gap is too small, the impeller will be stuck and the vortex pump will not work normally. In addition, the trachoma that may exist during the casting of the pump body will also affect the self-priming of the self-priming pump. Ability has a big impact

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