Gas-liquid separation device for enhancing self-priming of self-priming multistage centrifugal pump

Abstract

The invention discloses a gas-liquid separation device for enhancing the self-suction of a self-suction multistage centrifugal pump. The gas-liquid separation device is arranged inside the self-priming centrifugal pump. The gas-liquid separation device is mainly composed of two parts: an annular bracket and a ring-shaped spiral channel installed close to the annular bracket. The surface of the spiral channel is uniform Coated with hydrophobic materials to form a ring-shaped spiral tube channel on the hydrophobic surface supported by a ring bracket; the above-mentioned gas-liquid separation device is installed between the cavity of the pump casing and the pump casing, and the inner and outer rings are tightly fitted to the cavity and the pump casing respectively. The top and bottom of the gas-liquid separation device are provided with fan-shaped openings, the top is the exhaust port, and the bottom is the water return port; the above-mentioned gas-liquid separation device is installed in the area near the pump outlet, so that the gas-liquid separation device The exhaust port faces the pump outlet, and the return port The water port is located at the bottom of the pump. The annular gas-liquid separation device of the present invention has the advantages of simple structure, convenient installation, low processing difficulty, light weight, easy access to raw materials, and broad application prospects.

Description

Technical field[0001]The present invention belongs to the field of fluid mechanical technology, and it is directed to a gas-liquid separation device, particularly for an air-liquid separation device that accelerates the self-suction multi-stage centrifugal pump.Background technique[0002]The pump is a widely used hydraulic machine, whether in the engineering or in life, it is inseparable from the pump. The centrifugal pump is a fluid machinery generated by the impeller rotation to transmit liquid fluid machinery, which is widely used in urban sewage, farmland irrigation, petroleum transport, marine ships and chemicals. The centrifugal pump is significantly advantageous in the mechanical structure, the advantage of the centrifugal pump is simple, and the application scenario is rich. The multi-stage centrifugal pump refers to the need for a long-term overlay in the fluid structure and above to meet the demand of high-rings in the actual project. Especially the small stainless steel mu...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a gas-liquid separation device that enhances the gas-liquid separation effect and accelerates self-priming for the current self-priming multi-stage centrifugal pump with poor gas-liquid separation effect, poor self-priming stability and slow self-priming speed.

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