SU909288A1

SU909288A1 - Positive displacement pump

Info

Publication number: SU909288A1
Application number: SU802881909A
Authority: SU
Inventors: Валерий Александрович Леденцов
Original assignee: за витель -,ч - -VK..;--;i.-.v SKEJUBljIiv.
Priority date: 1980-02-11
Filing date: 1980-02-11
Publication date: 1982-02-28

Description

(54) ОБЪЕМНЫЙ НАСОС(54) BULK PUMP

1one

Р зобретение относитс к насосостроению , касаетс объемных насосов и может найти применение в различных отрасл х народного хоз йства дл низконапорной перекачки текучих сред.The invention relates to pump engineering, relates to positive displacement pumps, and may find application in various sectors of the national economy for low pressure pumping of fluids.

Известен объемный насос, содержащий корпус, в полости которого установлен гибкий трубчатый элемент, примыкающий торцами к крышкам корпуса, патрубки, выполненные в корпусе с диаметрально противоположных сторон, и генератор деформации , размещенный во внутренней полости гибкого элемента 1.Known volumetric pump, comprising a housing, in the cavity of which is installed a flexible tubular element adjacent the ends to the covers of the housing, nozzles made in the housing with diametrically opposite sides, and a deformation generator placed in the internal cavity of the flexible element 1.

Известный насос вл етс насосом однократного действи и обладает в силу этого недостаточной удельной объемной подачей .A known pump is a single-acting pump and, by virtue of this, has insufficient specific volume flow.

Цель изобретени - повышение объемной посто нной.The purpose of the invention is to increase the volume constant.

Дл достижени указанной цели в насосе полость корпуса выполнена с поперечным сечением в виде правильного многоугольника с четным числом вершин, в которых размещены патрубки, а генератор деформации выполнен в виде по меньшей мере двух пар противоположно движущихс To achieve this goal, in the pump the body cavity is made with a cross section in the form of a regular polygon with an even number of vertices in which the nozzles are placed, and the strain generator is made in the form of at least two pairs of oppositely moving

толкателей, установленных по диагонал м многоугольника.pushers mounted on a diagonal m polygon.

На фиг. 1 представлен насос, разрез плоскостью, перпендикул рной оси гибкого трубчатого элемента; на фиг. 2 - то жеFIG. 1 shows a pump, a plane section perpendicular to the axis of the flexible tubular member; in fig. 2 - the same

5 разрез плоскостью, проход щей через ось гибкого трубчатого элемента.5 is a section through a plane passing through the axis of the flexible tubular member.

В корпусе 1 выполнена полость 2, в которой установлен гибкий трубчатый элемент 3, примыкающий торцами к крышкам 4 корпуса 1. Полость 2 корпуса 1 выполнена In the housing 1 there is a cavity 2 in which a flexible tubular element 3 is installed, which adjoins with its ends to the covers 4 of the housing 1. The cavity 2 of the housing 1 is made

Claims

10 with a cross-section in the form of a regular polygon with an even number of vertices (in this case in the form of a quadrilateral), in which the pipes 5-8 are located on diametrically opposite sides of the housing 1. In the internal cavity 9 of the flexible element 3 there is a strain generator, made in the form of two pairs of oppositely moving pushers 10 set diagonally across the polygon. The drive of the pushers 10 is made in the form of a rod 11 coaxially with a flexible tubular element 3, with which each pair of oppositely moving pushers are pivotally connected by means 12 and 13. The pushers 10 are placed in the guide grooves 14 of the fixed sleeve 15. The flexible tubular element 3 is installed in a cavity 2 cases with some tension and adjoins to case 1 at four points. Each nozzle 5-8 is equipped with suction and discharge valves (not shown). The pump works as follows. During reciprocating movements of the rod 11, it acts through the pulls 12 and 13 on the pushers 10, forcing them to move in mutually opposite directions in the slots 14 with a phase shift of 180 ° between pairs of oppositely moving pushers 10. Therefore, when one of the pairs pushers 10 is moved apart; a pair of pushers 10 come closer to each other. Interacting with the flexible tubular element 3, the pushers 10 deform it. The deformation occurs along two mutually perpendicular axes. In this case, there occurs a periodic change in the volume of the cavity 2 of the housing 1, enclosed in the corners of the polygon, adjacent to the nozzles 5-8 and bounded by the flexible element 3. The pumped medium enters these volumes during the suction stroke and is replaced by to the consumer at the injection stroke. Due to the fact that for each double stroke of the rod 11, a full cycle of all-out-pumping in at least two pairs of volumes of the cavity 2 lying at the vertices of the polygon occurs, the pumping volume rises. Claims of Invention The volumetric pump comprising a housing in whose cavity a flexible tubular element is installed adjacent the ends of the housing covers, branch pipes made in the housing with diametrically opposite sides, and a strain generator placed in the inner cavity of the flexible element characterized in that increasing the volume constant, the body cavity is made with a cross section in the form of a regular polygon with an even number of vertices in which the nozzles are located, and the strain generator is made in the form enshey least two pairs of oppositely moving pushers mounted on the diagonals of the polygon. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2758562 / 25-06, cl. F 04 B 43/00, 1979.

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