RU97113804A

RU97113804A - CENTRIFUGAL PUMP DRIVING WHEEL

Info

Publication number: RU97113804A
Application number: RU97113804/06A
Authority: RU
Inventors: М.Т. Козлов; Ш.Ф. Тахаутдинов; Е.П. Жеребцов; М.М. Загиров; И.Ф. Калачев; В.Н. Окин; А.Е. Стародубский; А.К. Кашапов; В.М. Лашманов
Original assignee: Научно-производственная фирма "АЛВИС"
Filing date: 1997-08-11
Publication date: 1999-06-10

Claims

1. The impeller of a centrifugal pump, including the driving and driven disks and wedge-shaped vanes located between them, having a convex, concave and mating with the latter concave peripheral surface, characterized in that the peripheral surface of the vane is made with an additional convex surface, conjugated on one side with a convex the surface of the scapula, and on the other hand smoothly passing into a concave surface; radial channels formed by adjacent blades are connected to the wedge-shaped zone formed by the convex-concave peripheral surface of the blade and the outer surface of the impeller, the cross section of which decreases in the direction opposite to the rotation of the wheel.

2. The impeller according to claim 1, characterized in that the height of the wedge-shaped zone at the junction of two convex surfaces is not more than 1/2 of the depth of the radial channel, taken along an arc of a circle passing at the junction of convex surfaces, where the sum of the depths of all radial channels equal to 1/2 the length of the arc of this circle and satisfies the condition:
L xn / Pxd _o ≤3,
where L is the depth of the radial channel, measured along the arc;
n is the number of channels;
d _o - the diameter of the inlet of the impeller.

3. The impeller according to claim 1, characterized in that the peripheral surface of the blade is made inclined in the direction of the direction of movement of the fluid, and the angle of inclination from the interface of the convex surfaces, where it is 0 ^o , increases to the angle of the bend of the peripheral sections of the disks.