SU1634839A1

SU1634839A1 - Pump

Info

Publication number: SU1634839A1
Application number: SU884437018A
Authority: SU
Inventors: Виктор Павлович Унукович; Евгений Владимирович Колесников; Сергей Михайлович Козлов
Priority date: 1988-06-06
Filing date: 1988-06-06
Publication date: 1991-03-15

Abstract

Изобретение относитс к насосострор нию. Цель изобретени - повышение на дежности Насос содержит рабочее колесо 2 зоны 3, 4 всасывани и нагнетани , вса сывающии раструб 5 и крыльчатку с полыми лопаст ми 7 и стоиками 8, в которых выполнены щели 11, 12 При работе насоса жидкость из зоны 4 нагнетани перепускаетс в лопасти 7 и стойки 8 и истекает из щелей 11, 12 поспедних, создава реактивную струю При этом струи жидкости отбрасывают от раструба образующийс воздушный шнур, предотвраща тем самым попздание воздуха в зону 3 всасывани насоса, повыша i антикавитационный запас последнего 3i iThe invention relates to pumping. The purpose of the invention is to increase reliability. The pump includes an impeller 2 suction and discharge zones 3, 4, a suction socket 5 and an impeller with hollow blades 7 and stoics 8, in which slots 11, 12 are made. When the pump is operating, the fluid from the discharge zone 4 is bypassed in the blades 7 and the pillars 8 and expire from the slots 11, 12 second, creating a jet stream. At the same time the liquid jets reject the air cord formed from the socket, preventing air from entering the pump suction zone 3, increasing i the anti-cavitation reserve of the latter 3i i

Description

Фиг. 2FIG. 2

Фи&3Fi & 3

Claims

Claim

A pump containing a housing, an impeller, and suction and discharge zones, a suction socket immersed in the pumped medium, and an impeller mounted on the axis before the latter, with an impeller freely rotating in a horizontal plane with blades and vertical posts located on the latter, distinguishing by the fact that , in order to increase reliability by increasing the anti-cavitation reserve by preventing air from entering the suction cavity when an air cord is formed in the area of the suction socket, the impeller axis is made ene hollow in vanes and struts impeller formed internal cavity and the longitudinal slots, wherein the inner cavity communicated through the hollow axis with the zone of injection, and through the slit - with the environment, wherein the slots on the blades and the struts are arranged on the side opposite to the rotation direction of the impeller.

Yid A