SU937784A1

SU937784A1 - Centrifugal pump

Info

Publication number: SU937784A1
Application number: SU802987380A
Authority: SU
Inventors: Иван Степанович Скуба
Original assignee: за витель И.С. Скуба
Priority date: 1980-10-01
Filing date: 1980-10-01
Publication date: 1982-06-23

Description

(5) ЦЕНТРОБЕЖНЫЙ НАСОС(5) CENTRIFUGAL PUMP

Изобретение относитс к гидрома шйностроению и может быть использовано в центробежных насосах.The invention relates to hydrometeering and can be used in centrifugal pumps.

Известен центробежный насос, содержащий корпус с пазом, в котором установлена относительно поверхности разгрузочного диска с радиальным зазором по внутреннему периметру п та с тороидальной и цилиндрической поверхност ми, размещенный на валу разгрузочный диск, контактирующий с тороидальной поверхность п ты, и уплотнительный элемент l}.A centrifugal pump is known, comprising a housing with a groove in which a radial clearance is installed relative to the surface of the discharge disk with a radial clearance along the inner perimeter of the fifth with a toroidal and cylindrical surface, placed on the shaft a discharge disk in contact with the toroidal surface of the fifth, and a sealing element l}.

Недостатком известной конструкции вл етс сложность технологии изготовлени , обусловленна высокими требовани ми к точности изготовлени тороидальных поверхностей п ты и разгрузочного диска, а также недостаточна надежность гидроп ты за счет сложности уплотнени тороидального разъема.A disadvantage of the known construction is the complexity of the manufacturing technology, due to the high demands on the accuracy of manufacturing the toroidal surfaces of the heel and the discharge disk, as well as the lack of reliability of the hydraulic stage due to the complexity of sealing the toroidal connector.

Цель изобретени - упрощение технологии изготовлени и повышение надежности .The purpose of the invention is to simplify manufacturing technology and increase reliability.

Указанна цель достигаетс тем, что диск установлен с осевым зазором относительно п ты, а паз выполнен кольцевым с конической поверхностью в зоне его контакта с тороидальной поверхностью п ты.This goal is achieved by the fact that the disk is installed with an axial gap relative to the tip, and the groove is made annular with a conical surface in the zone of its contact with the toroidal surface of the tip.

Уплотнительный элемент может быть размещен в радиальном зазоре, или может быть выполнен в виде мембраны, закрепленной на торцовых поверхност х п ты и корпуса.The sealing element can be placed in the radial gap, or it can be made in the form of a membrane fixed on the end surfaces of the joint and the body.

На фиг. 1 изображен узел центробежного насоса с уплотнением п ты в радиальном зазоре; на фиг. 2 узел насоса с мембранным ушютнением п ты.FIG. 1 shows a centrifugal pump assembly with a seal in a radial clearance; in fig. 2 pump assembly with diaphragm pinching.

Claims

The centrifugal pump comprises a housing 1 with a groove 2 in which a radial clearance 3 is installed along the inner perimeter of the fifth with toroidal and cylindrical surfaces 5 and 6, placed on the shaft 7 a discharge disk 8 and a sealing element 9, and the disk 8 is installed with an axial the gap 10 relative to the point 4, and the groove 2 is made annular with a conical surface 11 in the zone of its contact with the toroidal surface 5 of the point; the sealing element 9 is placed in the radial gap. 3 or in the form of a membrane fixed on the end surfaces 12 and 13 of the tube and / casing 1. The device operates as follows. . When a pump is operating, hydrodynamic forces arise in the axial gap 10 between the disk 8 and the fifth, proportional to the axial clearance, 10, which move n 4 relative to the housing 1. The size of the radial clearance 3 allows the rotation of the fifth k relative to the housing 1 to Parallelism, Disk, and Fusion 4.. The use of this invention allows to simplify the technology of manufacture of the pump, its installation and increase its reliability, which leads to an increase in its efficiency. Claims 1. A centrifugal pump comprising a housing with a groove in which it is mounted

3 of FIG. 1 with a radial clearance along the inner perimeter of the heel with a longitudinal and cylindrical surface, an unloading disk on the shaft and a reinforcing element, which, in order to simplify the manufacturing technology and increase reliability, the disk installed with axial clearance relative to the tip, and the groove is made annular with a conical surface in the zone of its contact with the toroidal surface of the tip.

2. The pump according to claim 1, about tl. And h and y and the fact that the sealing element is placed in the radial clearance

3. The pump according to claim 1., in accordance with the fact that the sealing element is made in the form of a membrane fixed on the end surfaces of the fuse and the body. - Sources of information, taken 51e into account during the examination 1. USSR Copyright Certificate №361315, cl. F 0 D 29/0 +, 1972.

FIG. 2