SU1283438A1 - Radial-labyrinth pump - Google Patents

Abstract

The invention relates to the field of pumping and allows to increase the reliability of the pump when pumping liquids with a suspension. At the ends of the fixed 1 and movable 2 disks (D) facing each other, spiral cuts are made with the opposite direction of twist. The channels formed by the cuts are made narrowing from the periphery to the center of the D. Device. The supply is located along the periphery D, and the outlet device is centered and made in the form of a central hole 4 in the stationary D1. The D1 in the zone of the opening 4 is provided with a chamber 5 with tangentially placed nozzle 6. Due to the flow with acceleration from the periphery to the center D and the direction of the velocity vectors to the center D, the possibility of separation of the medium and deposition of solid particles is reduced. 2 hp f-ly, 3 ill. (L S;

Description

The invention relates to a pump construction, namely to labyrinth pumps.

The purpose of the invention is to increase reliability when pumping liquids with a suspension by preventing their separation and precipitation of solid particles.

FIG. 1 is a diagram of the pump; FIG. 2 - cutting a fixed disk, top view; Fig, 3 - cutting movable disk, top view

The radial-labyrinth pump contains stationary 1 and movable 2 disks, at the ends of which spiral cuts 3 are made, forming channels, and devices for supplying and discharging the pumped medium, the spiral cuts having opposite directions, and channels are made narrowing from the periphery to the center of the disks.

The removal device is designed as a central hole 4 in a fixed disk 1, while the latter in the area of the opening 4 is provided with a chamber 5 with a tangentially placed medium outlet 6. A fixed disk 1 is installed between the movable disk 2 and the camera 5, while the blades 7 are made on the periphery of the disk 2, which are continuation of the spiral cuts 3. The pump further includes a housing 8, a cap 9, an electric motor 10 and a coupling 11,

Radial labyrinth pump works as follows.

The pumped medium is loaded into the housing 8 from above. The cap 9 protects the electric motor 10 from damage and contamination. When the motor 10 is turned on, it uses the clutch 11 to drive the disk 2 into rotation. The vanes 7 capture the medium loaded in the housing 8 and move it along the grooves of the cuts 3 from the periphery to the center of the disks.

The flow leaving the hole 4 is twisted, since the velocity vectors in the grooves of both the movable and fixed disks have a circumferential component. In the hole 4 is formed of a vortex column of the pumped medium, reaching the bottom of the camera 5 spin. When moving the flow of the pump

of the medium to the periphery of the chamber 5, the circumferential component of the velocity is reduced, transformed into pressure, and the flow connection 6 tangentially connected to the chamber 5 is directed to the consumer.

Due to the fact that the flow from the periphery to the center of the disks moves with acceleration, and the velocity vectors in the grooves of the disks 1 and 2 to the center converge, the possibility of separation of the pumped medium and solid particles falling out of the liquid is reduced. provide energy transfer in the chamber formed by the part of the groove cut 3 of the movable disk 2 and the adjacent part of the groove of the fixed disk 1. The speed reported by the wall of the groove of the moving disk to the pumped medium, reobrazuets in pressure.

Claims (3)

1. Radio-labyrinth pump containing stationary and movable discs, at the ends of which, facing each other, are made spiraling cuts forming channels and devices for supplying and discharging the pumped medium, characterized in that, in order to improve reliability when pumping liquids suspended by preventing them from splitting and solid particles, twists of the spiral cuts have opposite directions, and the channels are narrowed from the periphery to the center of the disks, while the supply device is located along the periphery of the disks, and the removal device is located in the center. 2. The pump according to claim 1, characterized by the fact that the drainage device is made in the form of a central hole in a fixed disk, at the same time, the last one in the hole zone is equipped with a chamber with a tangentially placed medium outlet. 3. Pump on PP. 1 and 2, characterized in that a fixed disk is installed between the movable and the camera, while at the periphery the disc is filled with blades that are a continuation of the spiral cuts.