SU983318A1

SU983318A1 - Rotor compressor

Info

Publication number: SU983318A1
Application number: SU813273318A
Authority: SU
Inventors: Геннадий Никитович Чекушкин
Original assignee: Казанский Ордена Трудового Красного Знамени Химико-Технологический Институт Им.С.М.Кирова
Priority date: 1981-04-13
Filing date: 1981-04-13
Publication date: 1982-12-23

Description

(54J РОТОРНЫЙ КОМПРЕССОР,(54J ROTARY COMPRESSOR,

Изобретение относитс к компрес:соростроению и может быть использовано в энергомашиностроении.The invention relates to compressing and can be used in power engineering.

Известен роторный компрессор, содержащий корпус и размещенные в нем роторы, имеющие профиль, ограниченньай дугами окружностей, и образук цие рабочую камеру tl3.A rotor compressor is known, comprising a housing and rotors arranged therein, having a profile limited by circular arcs and forming a working chamber tl3.

Однако у известного роторного компрессора, из-з формы профил роторов зазор между последними измен етс за один оборот в широких пределах , что ухудшает КПД роторного компрессора..However, in a known rotary compressor, due to the shape of the rotor profile, the gap between the latter varies per revolution over a wide range, which degrades the efficiency of the rotary compressor.

Целью изобретени вл етс увеличение КПД. Поставленна цель достигаетс тем, что профиль каждого ротора образован двум парами противоположно расположенных дуг окружностей больатего и меньшего радиусов с центром на оси ротора и четырьм дугами окружностей с одинаковыми радиусом, равным рассто нию между ос ми соседних роторов и центрами, каждый из которых расположен в точке пересечени окружности большего радиуса и пр мой, проход щей через ось ротора и конец дуги меньшего радиуса, причем кажда из четырех дуг сопр жена с дугамиThe aim of the invention is to increase efficiency. The goal is achieved by the fact that the profile of each rotor is formed by two pairs of oppositely arranged arcs of circles of greater and smaller radii with a center on the rotor axis and four arcs of circles with the same radius equal to the distance between the axes of neighboring rotors and centers, each of which is located at a point intersections of a circle with a larger radius and a straight line passing through the axis of the rotor and the end of the arc of a smaller radius, each of the four arcs being associated with arcs

окружности меньшего радиуса и пересечена с дугами окружности большего радиуса .a circle of smaller radius and intersected with arcs of a circle of a larger radius.

с Причем радиусы дуг окружностей св заны соотношени ми;With Moreover, the radii of arcs of circles are related by ratios;

, (1 sorVb, (1 sorVb

10ten

где г - меньший радиус; , f - больший радиус; д- радиус, равный рассто ниюwhere g is the smaller radius; f is a larger radius; d is the radius equal to the distance

между ос ми соседних роторов; Ч - центральный угол дуг окруж15 ностей меньшего и большего радиусов.between the axles of adjacent rotors; H is the central angle of the arcs of circles of smaller and larger radii.

На фиг.1 изображен роторный компрессор , разрез,- на фиг. 2 - профиль ротора в укрупненном масштабе.1 shows a rotary compressor, a slit, in FIG. 2 - profile of the rotor in an enlarged scale.

2020

Роторный компрессор содержит корпус 1, размещенные в нем и синхронно вращающиес в одном, направлении роторы 2, имеющие профиль, ограниченный двум парами противоположно рас25 положенных дуг окружностей большего и меньшего радиусов Ь и г с центром на оси ротора и четырьм дугами окружностей с одинаковым радиусом RQ,paвным рассто нию между ос ми соседних A rotary compressor contains a housing 1, rotors 2 placed in it and synchronously rotating in one direction, having a profile bounded by two pairs of oppositely arranged arcs of circles of larger and smaller radii b and d centered on the rotor axis and four arcs of circles with the same radius RQ equal distance between the axes of the neighboring

Claims

30 rotors and centers, each of which is located at the point of intersection of a circle with a larger radius R and a straight line passing through the axis of the rotor and the end of an arc of a smaller radius g, each of the four arcs is conjugated with arcs of a circle of smaller radius g and intersected arcs of a circle with a larger radius R. The radii of the arcs are related by: r Ro, -Ri -7g P1GGTPCH) I where H is the central angle of the arcs of the circles of the smaller and larger radii of the Operating chamber 3 of the compressor is a variable volume between the rotors 2 and the end walls of the housing 1. Except Moreover, the rotary compressor has suction holes 4 located in the end part of the three rotors 2, and suction holes 5 on the rear side of the rotors 2 in the fourth side of the rotors 2 suction holes 4 and 5 on the lateral sides. On the end cover of Cus 1, there is an opening 6, overlapped by a disk 7 with shaped grooves. The rotary compressor operates as follows. During the synchronous rotation of the rotors at the initial stage, the working chamber increases its volume and, due to the vacuum, the gas enters it through the holes 4 and 5. At a certain angle of rotation, the suction holes 5 are cut off from the working chamber 3, its volume is further reduced, and the gas is compressed. Compression ends when the front edge of the groove 8 on the disk 7 crosses the edges of the hole 6. The gas is forced out of the working chamber 3 by reducing the volume, and then the cycle repeats. The profile of the rotors, limited by the combination of these lines, makes it possible to assign a good tightness of the chamber and a higher level of efficiency, compared with the known rotary compressor, when assigning the minimum possible clearances guaranteeing compensation for temperature and elastic deformations. The formula is ib; eteni 1. A rotor kompr essor, comprising a housing and in it roto-placed snoods having a profile bounded and arcing of circles, a working chamber increasing the magnitude of the fact that, with the purpose of efficiency, each rotor profile is formed in pairs hey of larger and circumscribed arcs are a circle of smaller radii with a center on the axis gami of the rotor's circumference and four arcs V equal to the distance with the same: the radius between the axes of the adjacent rotors and the centers, each of which is located at the point of the circle of intersection second, larger radius extending therethrough and the rotor axis and the end of each of said arcs of smaller radius, the four arcs with the arcs conjugated zheTsa okruzhsa and crossed NOSTA smaller radii larger radius circle arcs ca. Clause 1, W tl and 2. The compressor is comprehensible because the radii of the circular arcs are related by the relations: 1 + sin4), - where r is the smaller radius R is the larger radius of Rg, the radius equal to the distance between the axes neighboring rotors; H - the central angle of the circular arcs of its smaller and larger radii. Sources of information taken into account in the examination 1. French patent number 2311200, cl. F 04 C 1/16, published. 1976.