RU2010105959A

RU2010105959A - MULTI-SPEED HIGH-TURNING SUBMERSIBLE CENTRIFUGAL PUMP WITH A WIDE RANGE OF REGULATION

Info

Publication number: RU2010105959A
Application number: RU2010105959/06A
Authority: RU
Inventors: Александр Александрович Иванов (RU); Александр Александрович Иванов; Евгений Модестович Черемисинов (RU); Евгений Модестович Черемисинов; Олег Александрович Оводков (RU); Олег Александрович Оводков; Вадим Юрьевич Баталов (RU); Вадим Юрьевич Баталов
Original assignee: Александр Александрович Иванов (RU); Александр Александрович Иванов; Евгений Модестович Черемисинов (RU); Евгений Модестович Черемисинов
Priority date: 2010-02-24
Filing date: 2010-02-24
Publication date: 2011-08-27
Also published as: RU2442909C2

Abstract

1. Многоступенчатый высокооборотный погружной центробежный насос с широким диапазоном регулирования, состоящий из размещенных в одном цилиндрическом корпусе вала и нескольких ступеней, каждая из которых включает неподвижные относительно корпуса опорный диск, цилиндрический корпусной элемент, направляющий аппарат и соединенное при помощи шпонки с валом насоса центробежное колесо со ступицей, которое в свою очередь содержит скрепленные лопатками ведомый и ведущий диски, причем центробежное колесо сопрягается с направляющим аппаратом с помощью кольцевого подшипника скольжения, подвижная часть которого установлена на внешней поверхности ведомого диска, а ответная неподвижная часть на опорном диске, отличающийся тем, что между центробежным колесом и направляющим аппаратом предыдущей ступени на оси насоса по шпонке установлена запирающая втулка, "телескопически" сопряженная со ступицей центробежного колеса, и соприкасающаяся с поверхностью направляющего аппарата предыдущей ступени, а геометрические характеристики направляющего аппарата удовлетворяют условию !! где Н - высота проточной части направляющего аппарата; ! ω - угловая скорость центробежного колеса; ! R - радиус центробежного колеса. ! 2. Многоступенчатый высокооборотный погружной центробежный насос с широким диапазоном регулирования по п.1, отличающийся тем, что сечение запирающей втулки плоскостью по ее оси имеет параболический профиль. ! 3. Многоступенчатый высокооборотный погружной центробежный насос с широким диапазоном регулирования по п.1, отличающийся тем, что сечение запирающей втулки плоскостью по ее оси имеет конический профиль 1. A multi-stage high-speed submersible centrifugal pump with a wide control range, consisting of several stages located in one cylindrical shaft housing, each of which includes a support disk fixed to the housing, a cylindrical housing element, a guiding device and a centrifugal wheel connected by a key to the pump shaft with a hub, which in turn contains the driven and driving disks fastened by the blades, the centrifugal wheel being mated to the guide vane by means of an annular sliding bearing, the movable part of which is mounted on the outer surface of the driven disk, and the reciprocal stationary part on the support disk, characterized in that a locking sleeve is installed “telescopically” conjugated to the pump axis along the key axis between the centrifugal wheel and the guide device of the previous stage the hub of the centrifugal wheel, and in contact with the surface of the guide apparatus of the previous stage, and the geometric characteristics of the guide apparatus satisfy the condition !! where H is the height of the flowing part of the guide apparatus; ! ω is the angular velocity of the centrifugal wheel; ! R is the radius of the centrifugal wheel. ! 2. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that the section of the locking sleeve with a plane along its axis has a parabolic profile. ! 3. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that the section of the locking sleeve with a plane along its axis has a conical profile

Claims

1. A multi-stage high-speed submersible centrifugal pump with a wide control range, consisting of several stages located in one cylindrical shaft housing, each of which includes a support disk fixed to the housing, a cylindrical housing element, a guiding device and a centrifugal wheel connected by a key to the pump shaft with a hub, which in turn contains the driven and driving disks fastened by the blades, the centrifugal wheel being mated to the guide vane by means of an annular sliding bearing, the movable part of which is mounted on the outer surface of the driven disk, and the reciprocal stationary part on the support disk, characterized in that a locking sleeve is installed “telescopically” conjugated to the pump axis along the key axis between the centrifugal wheel and the guide device of the previous stage the hub of the centrifugal wheel, and in contact with the surface of the guide apparatus of the previous stage, and the geometric characteristics of the guide apparatus satisfy the condition

where H is the height of the flowing part of the guide apparatus;

ω is the angular velocity of the centrifugal wheel;

R is the radius of the centrifugal wheel.

2. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that the section of the locking sleeve with a plane along its axis has a parabolic profile.

3. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that the section of the locking sleeve with a plane along its axis has a conical profile.

4. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that in the space bounded by the surfaces of the shaft, the hub of the centrifugal wheel, the locking sleeve and the guide device of the previous stage, a cylindrical protective sleeve is installed, connected by a key to the pump shaft.

5. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that a high-strength coating is sprayed on all contacting surfaces of the locking sleeve and the guide device of the previous stage.

6. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that both the locking sleeve and the guide device of the previous stage are made integral, the contacting parts of the locking sleeve and the guide device of the previous stage are made of high-strength tungsten carbide based alloy.

7. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that the centrifugal wheel, locking and protective sleeves are connected with the pump shaft by a single key.

8. A multi-stage high-speed submersible centrifugal pump with a wide control range according to claim 1, characterized in that the rotating parts of all stages of the pump: centrifugal wheels, locking and protective sleeves are connected to the pump shaft by a single key.