SU1204808A1 - Centrifugal pump - Google Patents

Description

The invention relates to pump construction, the design of a centrifugal pump, and can be used for axial unloading of rotors of centrifugal pumps.

The purpose of the invention is to simplify the design.

The drawing shows a centrifugal pump, a longitudinal section.

The centrifugal pump comprises a housing 1 with areas 2 and 3 of high and low pressure, an impeller 4c with driving and driven disks 5 and 6, and ribs 7 with a drive located in the housing 1 on the side of the driven disk 6. The drive is made in the form of an elastic diaphragm 8 fixed in case 1 to form:.: Amers ,, 9 communicated with high pressure area 2 by pipe 10 Ribs 7 are made on the diaphragm

Editor В „Kovtun

The compiler of the GUS of the letter number. Tehred AoBabian

Зг .кеэ 3506/34

Circulation 585 Subscription

VNIIPI State Committee of the USSR

for iznayu.enu cases and. Discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent g g. Uzhgorod, st. Project 4

2048082

The centrifugal pump operates as follows.

As the wheel 4 rotates, the medium flows from low pressure area 3 to high pressure area 2. At the same time, part of the medium through the pipeline 10 enters from the high pressure area 2 into the chamber 9. The diaphragm 8, due to the effect of overpressure developed by the pump, bends, bringing the ribs 7 closer to the driven disk 6. The ribs 7 inhibit eddy currents, which increases the pressure in the cavity between disk 6

t5 and diaphragm-8 and contributes to axial unloading of the wheel 4 by increasing the pressure on the disk 6. At the same time, the movement and impact of the ribs 7 on the flow is greater than

20 more pressure drop in the high pressure area 2 and the cavity between the disk 6 and the diaphragm 8

Proofreader V.Sinitska

Claims (1)

A CENTRIFUGAL PUMP containing a housing with high and low pressure areas, an impeller with a drive and a driven disk and ribs with a drive located in the housing on the side of the driven disk, characterized in that, in order to simplify the design, the drive is made in the form of an elastic diaphragm, fixed in the housing with the formation of the chamber, in communication with the high-pressure region of the pump, and the ribs are made on the diaphragm.