Novel turbo-type pneumatic submersible pump with multiple nozzles

Abstract

The invention relates to a novel turbo-type pneumatic submersible pump with multiple nozzles, which comprises a pump body, a turbo casing, a turbo cover plate, a rotary shaft, a turbo, a supporting device, a sealing socket, a water wheel, a pump cover and an anti-fouling seat. A water outlet joint is arranged on the pump body, an annular air inlet nozzle is fixedly connected to the lower end face of the turbo casing, an air inlet pipe is fixedly connected to the circumference surface of the air inlet nozzle, a main airflow passage communicated with the air inlet pipe inside the air inlet nozzle circumferentially, N sub airflow passages are uniformly distributed on the main airflow passage in an upward extending manner, the N is the natural number larger than or equal to 2 and smaller than or equal to 6, and nozzles which are communicated with the sub airflow passages and disposed in vent holes on the turbo casing are arranged at the upper end of the air inlet nozzle. The novel turbo-type pneumatic submersible pump with multiple nozzles is long in service life, simple in structure, low in cost and capable of realizing production in batch. Power of the pneumatic submersible pump is increased by the common airflow passage and the multiple nozzles. Noise is lowered by the aid of a silencer. Energy conversion rate is high due to the high-efficiency turbo which is cast precisely integrally. Due to a composite impeller, the pneumatic submersible pump can be adaptable to sewage containing large-particle impurities, and is high in flow and lift.

Description

technical field [0001] The invention relates to a novel multi-nozzle turbine type pneumatic submersible pump, which belongs to the technical field of pneumatic water pumps. Background technique [0002] Existing pneumatic submersible pumps are generally divided into three types: vane pumps, turbo pumps and gear pumps, which are generally composed of air motors, submersible pumps and mufflers. The air motor is mainly composed of an air intake device and a turbine device, and the submersible pump is mainly composed of a pump body and a water wheel. The vane pump was used early and widely because of its relatively high flow rate and head, but because of the sliding friction between the vane and the cylinder and between the vane and the guide groove, even if it is equipped with a lubricator, it needs to be repaired after less than ten days of continuous use. ; Although the turbo pump does not have the above problems, it generally has low flow rate and head flow rate, and poor s...

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Problems solved by technology

The vane pump was used early and widely because of its relatively high flow rate and head, but because of the sliding friction between the vane and the cylinder and between the vane and the guide groove, even if it is equipped with a lubricator, it needs to be repaired after less than ten days of continuous use. ; Although the turbo pump does not have the above problems, it generally has low flow rate and head flow rate, and poor sewage discharge capacity (generally, the diameter of sediment particles is not greater than 5mm); while the gear pump uses a pair of meshing gears as the power source, which requires a very pure gas source. , but also has the problem of tooth surface wear, and the scope of application is small

Although some improved turbopumps have appeared at present, they are either complicated in structure and high in cost, or the improvement effect is not obvious, and their service life is short, and most of the turbines are welded by base body, blades, and shrouds, so it is difficult to guarantee their manufacturing accuracy. Affects the conversion efficiency of wind energy to kinetic energy

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