Wear ring easy to mount and used for reducing leakage

Abstract

The invention belongs to the field of centrifugal pumps and particularly relates to a wear ring easy to mount and used for reducing leakage. Elastic clamping buckles are arranged on the wear ring; clamping grooves matched with the elastic clamping buckles are formed in a centrifugal pump body; and the elastic clamping buckles and the clamping grooves constitute interference connection. The wear ring has the beneficial effects that 1, the elastic clamping buckles are arranged on the wear ring, the clamping grooves matched with the elastic clamping buckles are formed in the centrifugal pump body, the effect of fixing the wear ring can be achieved relying on interference connection of the elastic clamping buckles and the clamping grooves and elastic deformation of the elastic clamping buckles without bolts; and 2, the elastic clamping buckles are arranged on the wear ring, so that axial movement of the wear ring can be prevented, and a positioning boss is arranged on the wear ring, so that circumferential movement of the wear ring can be prevented.

Description

technical field [0001] The invention belongs to the field of centrifugal pumps, in particular to an easy-to-install mouth ring for reducing leakage. Background technique [0002] The mouth ring is also called the sealing ring, which generally exists on the centrifugal pump. The mouth ring is divided into the front mouth ring (located at the impeller suction inlet) and the rear mouth ring (located at the back of the impeller). The front mouth ring separates the high-pressure area and the low-pressure area in the pump, preventing a large amount of liquid from flowing from the high-pressure area to the low-pressure area, that is, preventing the high-pressure fluid from flowing from the impeller front chamber to the impeller suction port, and acting as a seal. At the same time, the mouth ring also plays a wear-resistant role to avoid damage to the impeller and pump casing. Most centrifugal pumps have a casing lip ring. [0003] For general centrifugal pumps, the commonly used...

AI Technical Summary

Problems solved by technology

However, this structure cannot completely prevent backflow. In actual production, it can be found that part of the fluid enters the impeller suction port through the gap, disturbs the main flow, and causes volume loss; The role of grinding, located outside the suction port of the impeller, has no effect on the balance of the axial force, so the axial force can only be balanced by other structures

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