Deep sea low-noise variable pump

Abstract

The invention relates to a deep sea low-noise variable pump. The deep sea low-noise variable pump comprises a pump body, the pump body comprises cylinder bodies arranged at intervals, first sealing plates extending from the cylinder bodies to the intervals, plugs located between the cylinder bodies and the first sealing plates, and plunger bases connected between the first sealing plates on the two sides in a sealed mode, and the cylinder bodies, the first sealing plates, the plugs and the plunger bases form an oil cavity used for containing oil; a plunger hole is formed in the inner end faceof each cylinder body and communicates with a low-pressure inlet, and a high-pressure outlet is formed in the outer end face of each cylinder body; and a permanent magnet plunger is arranged in each plunger hole, a groove is formed in the position, close to the corresponding permanent magnet plunger, of the inner end face of each cylinder body, a rotating coil is arranged in each groove, and thrust coils are arranged on the plunger bases. The deep sea low-noise variable pump has the beneficial effects that the purpose of changing the displacement of a plunger pump can be achieved by controlling the movement speed of the permanent magnet plungers, and the stroke of single movement of the plungers can be changed by adjusting the distance between the plunger holes and the plungers so as to change the displacement of the plunger pump.

Description

technical field [0001] The invention relates to the technical field of underwater hydraulics, in particular to a deep-sea low-noise variable displacement pump. Background technique [0002] The development of deep-sea resources has received more and more attention, and the development equipment has become more and more diverse. The hydraulic system has the advantages of strong carrying capacity, high power density, and convenient speed regulation, and is widely used in the development of deep sea resources. However, with the entry of human beings, the noise of various machinery and equipment has a great impact on the life of marine life. [0003] Common pump structures in hydraulic systems include gear pumps, plunger pumps, vane pumps, and screw pumps. The gear pump mainly has the advantages of simple structure, good processing technology, small size, wear resistance, strong anti-pollution ability, etc., but it also has the disadvantages of low volumetric efficiency at low...

AI Technical Summary

Problems solved by technology

Gear pumps mainly have the advantages of simple structure, good processing technology, small size, wear resistance, strong anti-pollution ability, etc., but there are also disadvantages such as low volumetric efficiency at low speeds, generally high operating speed and high noise

[0004] The screw pump mainly has the advantages of small pressure pulsation, low noise, high volumetric efficiency, and strong anti-pollution ability, but the screw pump has disadvantages such as difficult processing and low operating pressure.

[0005] The vane pump has the advantages of uniform flow, stable movement, low noise, and small volume, but the vane pump is prone to cause the vane to be stuck, and has high requirements for the cleanliness of the oil

[0006] The plunger pump has various structural forms, and has the advantages of high working pressure, high efficiency, and convenient variable variables, but because of its large flow pulsation, it will emit a lot of noise during operation

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