SU1642077A1

SU1642077A1 - Electrical pump

Info

Publication number: SU1642077A1
Application number: SU894672117A
Authority: SU
Inventors: Анатолий Иванович Незус; Юрий Федорович Сергеев
Original assignee: А. И. Незус и Ю. Ф. Сергеев
Priority date: 1989-04-04
Filing date: 1989-04-04
Publication date: 1991-04-15

Abstract

Изобретение относитс к насосострое- нию. Цель изобретени - повышение надежности . Электронасос содержит ротор 3, включающий полый вал 5, состо щий из входной и выходной частей 14, 15 и средней конусной части 8, образующей нагнетательный элемент 4. Конусна часть 8 на своей внутренней поверхности имеет треугольные канавки 9. Внутри вала установлена диафрагма 10 с окнами 11. Электронасос снабжен камерами 12, 13 низкого и высокого давлени . При работе электронасоса жидкость движетс внутри вала 5, приобрета окружную составл ющую скорости в его конусной части 8, и, пройд через окна 11 диафрагмы 10, нагнетаетс потребителю. При этом всасывающий и нагнетающий патрубки 6, 7 посредством камер 12, 13 конструктивно отделены от статорной полости электродвигател , предохран последнюю от попадани в нее перекачиваемой жидкости . 5 илThe invention relates to pumping equipment. The purpose of the invention is to increase reliability. The pump contains a rotor 3 comprising a hollow shaft 5 consisting of input and output parts 14, 15 and a middle cone part 8 forming the pressure element 4. The cone part 8 has triangular grooves 9 on its inner surface 9. Inside the shaft there is a diaphragm 10 with windows 11. The electric pump is equipped with low and high pressure chambers 12, 13. When the electropump operates, the fluid moves inside the shaft 5, acquiring a circumferential component of speed in its conical part 8, and, passing through the windows 11 of the diaphragm 10, is injected to the consumer. In this case, the suction and delivery nozzles 6, 7 are structurally separated from the stator cavity of the electric motor by means of chambers 12, 13, protecting the latter from falling into it of the pumped liquid. 5 yl

Description

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Claims

Claim

An electric pump comprising a housing, a stator winding, a rotor including a discharge element and a hollow shaft, suction and discharge nozzles, characterized in that, in order to increase reliability by simplifying the design of the rotor and separating the stator cavity with the suction and discharge areas, the hollow shaft is made of variable cross section with a middle conical part, expanding towards the discharge region, having on the inner surface of the grooves of a triangular section and forming a discharge element, inside the shaft from the larger side a diaphragm is installed on the diameter of the conical part, on the periphery of which there are windows, the electric pump is equipped with low and high pressure chambers, taken out of the housing, the suction pipe communicating with the inlet part of the hollow shaft through the low pressure chamber, and the discharge pipe with the outlet part of the hollow shaft through high pressure chamber.