SU620673A1 - Centrifugal pump - Google Patents

Description

(54) CENTRIFUGAL PUMP

The invention of ognosigs for pumping, in particular, for the construction of multi-mode pumps, and can be used in the design of support nodes of such pumps.

Centrifugal multi-drive pumps are known, comprising a drive, a housing with a support, a rotor, a bearing placed in the support, and a pump-wrenching device associated with a subframe.

The drawbacks of the known pumps are that the sensitivity and reliability of the operation of the extractor device with a voyvkovveiin) off-design forces per bearing is impressed.

The circuit of the invention is to increase the reliability and sensitivity of the trigger device when off-design forces occur on the bearing.

This is achieved by the fact that the otkryyuchy device is equipped with two thin-walled cones divided into sectors by meridional planes fixed in the body with a smaller base, 1REDs, enveloping, bearing large, crushed to one another, and in the case around the large bases of both cones with a gap relative to The outer surface of the latter is installed with conductive contacts electrically isolated from the housing and connected to the electrical circuit with a wire.

The drawing shows schematically a centrifugal pump, a longitudinal section

The pump contains a drive (not shown in the drawing), a housing 1 with a support 2, a rotor 3, a bearing 4, thin-walled cones 5 and 6, divided into sectors by meridional planes and formed together with a conductor with wide contacts .7 and 8 placed in an isolator 9, disconnect device.

The pump works as follows. P {M1 arises from the rotor 3 of the load exceeding the design, on the subtlety cones I 5 to (ip) 6 through the support 2 and the bearing 4 is transferred a force deflecting the sectors of the thin-walled cones and (or) 6 ds)