Triple eccentric sliding vane oil delivery pump

Abstract

The invention discloses a triple eccentric sliding vane oil delivery pump, and relates to the field of oil pumps. The triple eccentric sliding vane oil delivery pump comprises a radial pump body 1, wherein two sets of partition plates 5 are arranged on a main shaft 2 in the pump body 1, the pump body 1 is divided into three pump chambers through the two sets of partition plates 5, and sealing structures are arranged between the partition plates 5 and the main shaft 2 so as to block liquid communication of the three pump chambers; and the triple eccentric sliding vane oil delivery pump further comprises three sets of oil suction and discharge pump cavities which are arranged in the three pump chambers correspondingly, and the three sets of oil suction and discharge pump cavities conduct oil suction and discharge work in the pump body 1. According to the design structure, the pump body is divided into the three pump chambers through the two sets of partition plates, the three sets of oil suction and discharge pump cavities are contained in the pump body to conduct oil suction and discharge work in the pump body, the three chambers share one pump body, the three coaxial pump cavities complete the oil suction and discharge work process at the same time, the volume efficiency of the pump is greatly improved, and the size of the pump is effectively reduced. Liquid communication of the three pump chambers is effectively blocked through the sealing structures, the radial jumping fault caused by the too long suspension point of the main shaft is avoided, the operation stability of the pump is improved, and sealing is firmer.

Description

technical field [0001] The invention relates to the technical field of oil pumps, in particular to a triple eccentric vane oil delivery pump. Background technique [0002] The oil pump is mainly used in the petrochemical industry. It is a new type of pump product developed and designed to meet the mixed transportation project of conveying high viscosity, containing particulate matter and oil, water and steam media. [0003] In the existing technology, the Chinese patent discloses a utility model patent named duplex eccentric pump, and its patent number is CN201420592478.3, which relates to an oil pump, which is mainly used for transporting high-viscosity super-heavy oil medium on the ground in oil fields. Duplex eccentric pumps are especially suitable for mixed transportation of oil-gas and oil-water. The centerline of the outlet of the pump body passes through the axis of the main shaft of the rotor, and the overflow groove of the wear-resistant liner is a slope or an arc ...

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Problems solved by technology

[0004] However, in the above-mentioned patents, the coaxial double pump chambers complete the suction and discharge process at the same time, the efficiency of oil suction and discharge is low, and the volumetric efficiency of the pump is low, and because the gap between the shunt sleeve and the pump shaft is too large, the liquid between the left and right pump chambers is affected. Insufficient pump flow and working pressure reduce pump efficiency

At the same time, the alloy steel material of the original blade, due to wear and sparks generated by the collision between the blade and the inner diameter of the stator during operation, causes an explosion accident

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